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Tallgrass Energy Partners LP

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FY2018 Annual Report · Tallgrass Energy Partners LP
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2018 ANNUAL REPORT

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Welcome to Tallgrass Energy.
We’re a midstream infrastructure company, transporting crude oil and natural gas 
from some of the nation’s most prolific basins in the Rocky Mountains, Upper Midwest 
and Appalachian regions with access to major demand markets in the Rockies, the 
Midwest, eastern Ohio and points in between. Since our inception, we’ve built a strong 
portfolio of integrated transportation, storage, terminal, water management, gathering, 
processing and treating assets to support our customers, increase value and deliver 
outstanding long-term returns for our investors. 

In June 2018, Tallgrass closed on the merger of TEP and TEGP, consolidating from two public companies to one.
BENEFITS OF TALLGRASS COMBINATION

Reduced Complexity &
Increased Alignment

Reduced Cost  
of Capital

Increased Equity  
Market Depth

»  Tallgrass Energy has moved 
from 2 public companies to 1

»  Full alignment among all  

equity owners
»  1099 Dividends  

(expect < 10% taxable)

»  Elimination of IDRs provided 
immediate cost of capital 
improvement, enhancing the 
ability to grow through large 
projects and/or acquisitions

»  Increased scale and reduced 
complexity could potentially 
improve Tallgrass’ credit   
ratings, which would reduce  
cost of debt (positive watch  
from S&P and Investment  
Grade rating from Fitch)

»  No cash federal taxes expected 

at TGE for at least 10 years

»  TGE is a partnership taxed as  
a C-corp (1099 instead of K1)

»  Larger pro forma market  

capitalization has increased 
liquidity and will likely appeal  
to a broader group of investors

»  Will make future equity  

raises (if any) more efficient  
and cost-effective

TALLGRASS SYSTEM MAP

CRUDE OIL

NATURAL GAS

NATURAL GAS

NATURAL GAS LIQUIDS

WATER

TALLGRASS ENERGY, LP       1

L E T T E R   T O   T G E   S H A R E H O L D E R S

2018 Key Accomplishments

M E R G E R
 TEP and TEGP merger

ACQ U I S I T I O N S
 Completed remaining dropdowns from Tallgrass Development
 Expanded oil footprint into the Powder River Basin
 Expanded terminal footprint
 Expanded water footprint into the Bakken

F I N A N C I N G
 Rockies Express Pipeline repaid debt and achieved investment grade credit ratings

THE YEAR IN REVIEW

  With 2018 behind us, I want to take this opportunity to thank 
the  truly  outstanding  employees  at  Tallgrass  for  delivering 
another  remarkable  year.  Every  day,  the  talented  men  and 
women at Tallgrass bring their passion and dedication to safely 
and reliably operating some of our nation’s most critical energy 
infrastructure and executing the day-to-day activities that enable 
us  to  do  the  things  we  say  we’re  going  to  do.  It’s  humbling  to 
lead this team. 

In  many  ways,  2018  marked  a  brand-new  chapter  in 
Tallgrass’  growth  trajectory.  We  simplified  our  corporate  struc-
ture to position Tallgrass for even greater long-term success. By 
closing on the merger of TEP and TEGP—a transaction that was 
overwhelmingly  supported  by  TEP  unitholders—we  realized  a 
number  of  important  benefits  and  opened  the  door  to  an  even 
more promising future. 

  We believe the combination reduced complexity, increased 
alignment among equity owners, reduced our cost of capital and 
increased  equity  market  depth.  Achieving  these  goals  further 
strengthens  our  position  as  one  of  the  nation’s  leading  infra-
structure companies. 

  Shortly  after  the  merger,  Tallgrass  received  an  investment 
grade  credit  rating  from  Fitch.  We  believe  Tallgrass  has  main-
tained investment grade  credit metrics for  several  years, and it 
was  gratifying  to  see  that  validated  by  Fitch.  Rockies  Express 
Pipeline,  which  continues  its  transformation  into  the  nation’s 
northernmost  bi-directional  natural  gas  header  system,  also 
received investment grade credit ratings from S&P and Fitch in 2018.
  Our  successful  business  development  efforts  and  contin-
ued operational excellence translated into another year of strong 
financial results. In 2018, we covered our dividend by more than 
1.25  times,  generating  almost  $150  million  of  cash  in  excess  of 
dividends  paid.  We  exceeded  the  high  end  of  the  Adjusted 
EBITDA and met the high end of dividend growth guidance we 
provided  in  March  2018.  At  that  time,  we  said  we  expected 
Adjusted EBITDA to be $755–$835 million1 and dividend growth 
to  be  38–42  percent  for  TGE.  Pro  Forma  2018  Adjusted  EBITDA 
was $860 million and dividend growth for the year was 41.5 percent. 
  For  Q4  2018,  Tallgrass  paid  a  quarterly  cash  dividend  of 
$0.52  per  Class  A  share,  or  $2.08  on  an  annualized  basis.  
That  marked  Tallgrass’  14th  consecutive  increase  since  its  
May  2015  IPO.  Moving  forward,  we  expect  to  grow  dividends  

(1) Excluding deficiency payments.

2

by 6–8 percent on an annualized basis and grow free cash flow 
at a rate of 13–15 percent. 

  Now, let’s take a look at some noteworthy accomplishments 

from 2018.

2018 HIGHLIGHTS

Corporate
»  Acquired  remaining  drop-down  assets  from  Tallgrass 
Development: 25 percent of REX bringing Tallgrass’ ownership 
to 75 percent, and the remaining 2 percent of Pony Express.
» Tallgrass received an investment grade credit rating from Fitch.
»  REX received investment grade credit ratings from S&P and Fitch.
Crude Oil Transportation Segment
»  Reinforced  our  presence  in  the  heart  of  the  Powder  River 
Basin through our Powder River Gateway joint venture, which 
owns  the  Iron  Horse  Pipeline,  the  Powder  River  Express 
Pipeline  and  crude  oil  terminal  in  Guernsey,  Wyo.,  enabling 
Wyoming production to get onto Pony Express.

»  Further strengthened our footprint in the D-J Basin by placing 
in  service  the  Platteville  Extension,  which  connects  D-J  pro-
ducers  to  Pony  Express  via  our  Buckingham  terminal  and 
Northeast Colorado Lateral. We also began working on a sep-
arate extension to allow producers to connect to Pony Express 
via the Pawnee terminal. 

»  Increased Pony Express capacity to about 400,000 barrels per 
day  through  pump  enhancements  and  in  January  2019 
announced  plans  for  an  additional  550,000  barrels  per  day 
through a joint venture with Kinder Morgan that includes con-
verting  portions  of  the  Wyoming  Intrastate  and  Cheyenne 
Plains natural gas pipeline systems and constructing approxi-
mately 200 miles of new pipeline.

Natural Gas Transportation Segment
»   Tallgrass  Interstate  Gas  Transmission  and  Trailblazer  Pipeline 
continue to act as a solid foundation for the natural gas trans-
portation  segment  from  both  a  revenue  and  market  presence 
perspective by serving key on-system markets and operating as 
the most economic route out of the Rockies, respectively. Both 
pipeline systems continue to optimize their capacity and reve-
nue  while  pursuing  opportunities  associated  with  increased 
Rockies production.

 
 
 
 
 
 
 
 
   REX continues its evolution into the nation’s northernmost 
header system with the Cheyenne Hub Enhancement (in-service 
anticipated  Q4  2019),  which  will  allow  significant  volumes  to 
enter  the  pipeline  at  Cheyenne  and  flow  to  demand  markets 
across the nation. In 2018, REX realized its longest duration of 
full  utilization  of  west-to-east  transport—emphasizing  its 
value as an essential Rockies production takeaway.

»  REX connected its first two natural gas-fired power plants to the 
system,  increasing  the  direct  connected  load  to  more  than  
1.4 Bcf/d, nearly two times the pipeline’s original direct connects.
»  The natural gas transportation segment entered the D-J Basin 
with  its  submission  of  a  FERC  7c  Application  for  Tallgrass’ 
first  greenfield  natural  gas  pipeline,  Cheyenne  Connector, 
which has an anticipated in-service of Q4 2019.

Gathering, Processing & Terminalling Segment
» TALLGRASS TERMINALS 

  Began construction to connect several D-J Basin gathering 
companies into the Buckingham and Grasslands terminals, 
providing additional volumes for Pony Express.
  Began construction on the Guernsey and Grasslands ter-
minals, both of which are expected to be in service in the 
first half of 2019. 
  Placed  the  Natoma  terminal  in  service  in  July,  giving 
Central Kansas Uplift producers direct access to Pony. 
  Acquired  a  51  percent  interest  in  the  Pawnee,  Colo., 
terminal.

» TMID

  Connected an additional 29 wells to our processing facili-
ties and secured commitments for another 33 future wells. 
  Executed an agreement to increase propane sales by 
2 million gallons in 2019.
  Renegotiated and/or renewed several contracts resulting 
in more favorable terms and executed incremental gathering 
and processing contracts for 2019. 

» WATER BUSINESS

  Closed two Bakken acquisitions and expanded gathering 
and  disposal  infrastructure,  establishing  Tallgrass’  foot-
print in the basin and making Tallgrass one of the largest 
water infrastructure companies in the Bakken. 
  Completed  the  installation  of  more  than  75  miles  of 
gathering  pipeline  and  72  pump  stations  to  service  a 
long-term contract in the Bakken. 
  Executed  two  long-term  take-or-pay  water  supply  con-
tracts  with  major  producers  in  the  D-J  Basin  and 
expanded  disposal  capacity  for  existing  clients  in  the 
Powder River and Permian basins.

THE NEXT CHAPTER

  As  we  begin  the  next  chapter  of  our  evolution,  you  can 
expect us to move from a high-growth company to one of more 
measured  growth,  deploying  capital  at  appropriate  returns 
(“ROIC”). We will do this by building on our platform of core mid-
stream  assets  through  organic  growth  and  acquisitions  to 
expand  into  new  basins  and  markets  and  continue  to  enhance 
value  to  all  stakeholders—shareholders,  customers,  employees 
and the communities in which we operate. 

  As a traditional midstream operator transporting oil and gas 
from producing regions to demand markets across the country, 
we’re well positioned to take advantage of two emerging trends. 

First,  we’re  seeing  a  growing  number  of  power  generators  con-
verting  from  coal  to  natural  gas.  Not  only  is  natural  gas  clean, 
reliable,  abundant  and  affordable,  but  it  also  complements  the 
increasing  share  of  renewable  generation  by  ensuring  electric 
reliability  to  support  these  intermittent  resources.  Simply  put, 
natural gas will continue to play a large role in power generation 
for years to come. In the first half of 2018, REX accomplished a 
milestone  by  connecting  its  first  two  natural  gas-fired  power 
plants, and we expect those connections to grow as power gen-
erators capitalize on REX’s reliability and commitment to opera-
tional excellence. 

In  2018,  the  U.S.  achieved  two  milestones  of  its  own:  our 
nation became the world’s largest oil producer, surpassing both 
Saudi Arabia and Russia, and became a net exporter of crude oil 
and petroleum products for the first time in almost 70 years. We 
expect both production and exports to continue their growth tra-
jectory for at least the next decade.     

  As part of Tallgrass’ strategic growth initiatives, in August we 
announced two separate projects to support the country’s crude 
oil growth. The proposed 700-mile Seahorse Pipeline would trans-
port crude oil from Cushing, Okla., to the Gulf in Louisiana, where 
it can be refined into critical products that fuel our economy, such 
as gasoline, jet fuel and heating oil, or exported to other countries. 
We also announced we have signed a binding agreement with an 
unaffiliated third party that has the potential to be an anchor ship-
per and equity partner in that project. 

In addition, we announced plans to develop the Plaquemines 
Liquids Terminal in Louisiana. PLT is a joint development project 
with Drexel Hamilton Infrastructure Partners, LP, in concert with 
the  Plaquemines  Port  &  Harbor  Terminal  District  (PPHTD),  a 
Louisiana  state  agency.  The  proposed  PLT  project  is  a  liquids 
export  terminal  facility  on  the  Mississippi  River  in  Plaquemines 
Parish, La., with the capacity of up to 20 million barrels of storage 
and the ability to fully load and unload Post-Panamax vessels on 
its deep-water dock. Tallgrass anticipates building a separate off-
shore pipeline extension that would give PLT the added capability 
of loading Very Large Crude Carriers by 3Q 2021.

  At  the  end  of  January  2019,  we  announced  an  agreement 
under which Blackstone Infrastructure Partners would acquire a 
controlling  interest  in  Tallgrass.  We  expect  that  transaction  to 
close in Q1 2019. We believe Blackstone’s scale, long-term capital 
and  investment  expertise  across  the  energy  industry  make  it  an 
ideal partner as we continue our growth trajectory. Along with the 
projects  we  announced  in  2018,  our  agreement  with  Blackstone 
advances the strategic plan we’ve charted for the future to solidify 
our  position  as  a  competitive  midstream  operator  and  further 
strengthen  our  ability  to  add  value  to  our  customers,  our  share-
holders and other stakeholders. 

  Thanks again, to the outstanding Tallgrass team and to our 
customers, suppliers and shareholders for making all this possi-
ble. We look forward to what lies ahead.

Sincerely,

David G. Dehaemers Jr.
President and Chief Executive Officer

TALLGRASS ENERGY, LP        3

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
S U M M A R Y   F I N A N C I A L   I N F O R M AT I O N

(in thousands, except coverage)

Year Ended December 31,

2018(1)

Net income
  Net income attributable to noncontrolling interestst

Net income attributable to TGE
Add:

Interest expense, net

  Depreciation and amortization expense(2)
  Distributions from unconsolidated investments
  Deficiency payments, net(2)
  Non-cash compensation expense
  Loss on debt retirement
  Distributions received by Tallgrass Development(3)
  Deferred income tax expense
  Net income attributable to Exchange Right Holders
Less:
  Equity in earnings of unconsolidated investments
  Gain on disposal of assets(2)
  Non-cash gain related to derivative instruments(2)

Tallgrass Energy Adjusted EBITDA

Less:
  Cash interest cost
  Maintenance capital expenditures, net(2)

Cash Available for Dividends
Less:

  Dividends to Class A (TGE)
  Dividends to Class B (Exchange Right Holders)
  Distribution to TEP public unitholders

Amounts in excess of dividends

Dividend coverage

$  455,934 
(235,167)

220,767 

133,319 
109,708 
387,148 
21,830 
10,666 
2,245 
11,475
67,446 
229,039 

(306,819)
(10,659)
(4,252)

$  871,913

(127,973)
(20,956)

   722,984 

(266,389)
(251,715)
(46,391)

$  158,489 

1.28 x

(1)  Indicated amounts presented for the year ended Dec. 31, 2018, are on a pro forma basis assuming that the merger transaction with TEP had closed on Jan. 1, 2018.

(2)  Net of noncontrolling interest in joint ventures.

(3)  Represents distributions received by Tallgrass Development from its (i) 25.01 percent membership interest in REX from January 1, 2018 to February 6, 2018 and its 

(ii) 2 percent membership interest in Pony Express from January 1, 2018 to January 31, 2018.

Tallgrass Energy 
Adjusted EBITDA*

Tallgrass Energy 
Adjusted EBITDA*

(in millions)

(in millions)

TGE Dividends   
per Share**

TGE Dividends   
per Share**

Gathering, Processing, and Terminalling
Crude Oil Transportation
TIGT & Trailblazer
Rockies Express

Gathering, Processing, and Terminalling
Crude Oil Transportation
TIGT & Trailblazer
Rockies Express

$709

$709

$797

$872

$872
$797

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4

8

%   C

%   C

8

4

$0.5200

$0.5200

$580

$580

$231

$292
$231

$292

$0.3675

$0.3675

$0.2775

$0.2775

$0.1730

$0.1730

$0.1329

$0.1329

2013

2013
2014

2014
2015

2015
2016

2016
2017

2017
2018

2018

Q2 2015

Q2 2015
Q4 2015

Q4 2015
Q4 2016

Q4 2016
Q4 2017

Q4 2017
Q4 2018

Q4 2018

* Represents  Adjusted  EBITDA  across  the  Tallgrass  Energy  Family  of 
Companies. A reconciliation of this non-GAAP metric for 2013–2017 is 
available  in  the  presentation  dated  10/9/2018  under  the  Webcasts  & 
Presentations section at www.tallgrassenergy.com.

**   TGE  Class  A  shareholders  received  a  pro-rated  dividend 
from TGE for the second quarter of 2015 in an amount of 
$0.073  for  the  period  from  May  12,  2015–June  30,  2015. 
For illustrative purposes, the chart above shows what the 
dividend would have been if TGE had been public for the 
entire quarter.

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FORM 10-KENERGY PARTNERSENERGY PARTNERSUNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549

FORM 10-K

 (Mark One)

ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the Fiscal Year Ended December 31, 2018 
or

TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT
OF 1934

Commission file number 001-37365

 Tallgrass Energy, LP
(Exact name of registrant as specified in its charter)

Delaware
(State or other Jurisdiction of Incorporation or Organization)

47-3159268
(IRS Employer Identification Number)

4200 W. 115th Street, Suite 350
Leawood, Kansas
(Address of Principal Executive Offices)

66211
(Zip Code)

(913) 928-6060
(Registrant's Telephone Number, Including Area Code)

Securities registered pursuant to Section 12(b) of the Act:

Title of each class

Name of each exchange on which registered

Class A Shares Representing Limited Partner Interests

New York Stock Exchange

Securities registered pursuant to Section 12(g) of the Act:

None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. 

Yes  

    No  

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. 

Yes  

    No  

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities 
Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), 
and (2) has been subject to such filing requirements for the past 90 days.    Yes  

    No  

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted 

pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the 
registrant was required to submit such files).    Yes  

    No  

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K (§229.405 of this chapter) is not 

contained herein, and will not be contained, to the best of registrant's knowledge, in definitive proxy or information statements 
incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. 

 
 
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller 

reporting company, or an emerging growth company. See the definitions of "large accelerated filer", "accelerated filer", "smaller 
reporting company", and "emerging growth company" in Rule 12b-2 of the Exchange Act. 

Large accelerated filer

Non-accelerated filer

Accelerated filer

Smaller reporting company

Emerging growth company

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for 

complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.    

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange 

Act).    Yes  

    No  

The aggregate market value of voting and non-voting common equity held by non-affiliates on June 29, 2018, the last business 

day of the Registrant's most recently completed second fiscal quarter (based on the closing sale price of $22.16 of the Registrant's 
Class A shares, as reported by the New York Stock Exchange on such date) was approximately $1,264.2 million. On February 8, 2019, 
the Registrant had 156,353,761 Class A shares and 123,887,893 Class B shares outstanding. 

 
 
 
 
 
 
TALLGRASS ENERGY, LP
TABLE OF CONTENTS

PART I

Item 1. Business

Item 1A. Risk Factors 

Item 1B. Unresolved Staff Comments

Item 2. Properties

Item 3. Legal Proceedings

Item 4. Mine Safety Disclosures

PART II

Item 5. Market for Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity 
Securities
Item 6. Selected Financial Data
Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations
Item 7A. Quantitative and Qualitative Disclosures About Market Risk
Item 8. Financial Statements and Supplementary Data

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED STATEMENTS OF INCOME

CONSOLIDATED STATEMENTS OF EQUITY

CONSOLIDATED STATEMENTS OF CASH FLOWS

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Item 9. Changes in and Disagreements With Accountants on Accounting and Financial Disclosures

Item 9A. Controls and Procedures

Item 9B. Other Information

Part III

Item 10. Directors, Executive Officers and Corporate Governance

Item 11. Executive Compensation

Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters

Item 13. Certain Relationships and Related Transactions, and Director Independence

Item 14. Principal Accounting Fees and Services

Part IV

Item 15. Exhibits, Financial Statement Schedules

Item 16. Form 10-K Summary

SIGNATURES

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62
85
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91

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95

143

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193

195

 
Bakken oil production area: Montana and North Dakota in the United States and Saskatchewan and Manitoba in Canada.

Glossary of Common Industry and Measurement Terms

Barrel (or bbl): forty-two U.S. gallons.

Base Gas (or Cushion Gas): the volume of gas that is intended as permanent inventory in a storage reservoir to maintain 
adequate pressure and deliverability rates.

BBtu: one billion British Thermal Units.

Bcf: one billion cubic feet.

British Thermal Units or Btus: the amount of heat energy needed to raise the temperature of one pound of water by one degree 
Fahrenheit.

Commodity sensitive contracts or arrangements: contracts or other arrangements, including tariff provisions, that are directly 
tied to increases and decreases in the price of commodities such as crude oil, natural gas and NGLs. Examples are Keep Whole 
Processing Contracts and Percent of Proceeds Processing Contracts, as well as pipeline loss allowances on our pipelines.

Condensate: an NGL with a low vapor pressure, mainly composed of propane, butane, pentane and heavier hydrocarbon 
fractions.

Contract barrels: barrels of crude oil that our customers have contractually agreed to ship in exchange for firm service 
assurance of capacity and deliverability to delivery points.

Delivery point: any point at which product in a pipeline is delivered to or for the account of a customer.

Dry gas: a gas primarily composed of methane and ethane where heavy hydrocarbons and water either do not exist or have 
been removed through processing.

Dth: a dekatherm, which is a unit of energy equal to 10 therms or one million British thermal units.

End-user markets: the ultimate users and consumers of transported energy products.

EPA: the United States Environmental Protection Agency.

FERC: the United States Federal Energy Regulatory Commission.

Firm fee contracts: contracts or other arrangements, including tariff provisions, that generally obligate our customers to pay a 
fixed recurring charge to reserve an agreed upon amount of capacity and/or deliverability on our assets, regardless if the 
contracted capacity is actually used by the customer. Such contracts are also commonly known as "take-or-pay" contracts.

Firm services: services pursuant to which customers receive firm assurances regarding the availability of capacity and/or 
deliverability of natural gas, crude oil or other hydrocarbons or water on our assets up to a contracted amount.

Fractionation: the process by which NGLs are further separated into individual, typically more valuable components including 
ethane, propane, butane, isobutane and natural gasoline. 

GAAP: accounting principles generally accepted in the United States of America.

GHGs: greenhouse gases.

Header system: networks of medium-to-large-diameter high pressure pipelines that connect local gathering systems to large 
diameter high pressure long-haul transportation pipelines.

Interruptible services: services pursuant to which customers receive limited, or no, assurances regarding the availability of 
capacity and deliverability in our assets.

Keep Whole Processing Contracts: natural gas processing contracts in which we are required to replace the Btu content of the 
NGLs extracted from inlet wet gas processed with purchased dry natural gas.

Line fill: the volume of oil, in barrels, in the pipeline from the origin to the destination.

Liquefied natural gas or LNG: natural gas that has been cooled to minus 161 degrees Celsius for transportation, typically by 
ship. The cooling process reduces the volume of natural gas by 600 times.

Local distribution company or LDC: LDCs are involved in the delivery of natural gas to end users within a specific 
geographic area.

Long-term: with respect to any contract, a contract with an initial duration greater than one year.

MMBtu: one million British Thermal Units.

Mcf: one thousand cubic feet.

MDth: one thousand dekatherms.

MMcf: one million cubic feet.

Natural gas liquids or NGLs: those hydrocarbons in natural gas that are separated from the natural gas as liquids through the 
process of absorption, condensation, or other methods in natural gas processing or cycling plants. Generally, such liquids 
consist of propane and heavier hydrocarbons and are commonly referred to as lease condensate, natural gasoline and liquefied 
petroleum gases. Natural gas liquids include natural gas plant liquids (primarily ethane, propane, butane and isobutane) and 
lease condensate (primarily pentanes produced from natural gas at lease separators and field facilities).

Natural Gas Processing: the separation of natural gas into pipeline-quality natural gas and a mixed NGL stream. 

Non-contract barrels (or walk-up barrels): barrels of crude oil that our customers ship based solely on availability of capacity 
and deliverability with no assurance of future capacity.

No-notice service: those services pursuant to which customers receive the right to transport or store natural gas on assets 
outside of the daily nomination cycle without incurring penalties.

NYMEX: New York Mercantile Exchange.

NYSE: New York Stock Exchange.

Park and loan services: those services pursuant to which customers receive the right to store natural gas in (park), or borrow 
gas from (loan), our facilities.

Percent of Proceeds Processing Contracts: natural gas processing contracts in which we process our customer's natural gas, 
sell the resulting NGLs and residue gas and divide the proceeds of those sales between us and the customer. Some percent of 
proceeds contracts may also require our customers to pay a monthly reservation fee for processing capacity.

PHMSA: the United States Department of Transportation's Pipeline and Hazardous Materials Safety Administration.

Play: a proven geological formation that contains commercial amounts of hydrocarbons.

Produced water: all water removed from a well as a byproduct of the production of hydrocarbons and water removed from a 
well in connection with operations being conducted on the well, including naturally occurring water in the recovery formation, 
flow back water recovered during completion and fracturing operations and water entering the recovery formation through 
water flooding techniques.

Receipt point: the point where a product is received by or into a gathering system, processing facility, or transportation 
pipeline.

Reservoir: a porous and permeable underground formation containing an individual and separate natural accumulation of 
producible hydrocarbons (such as crude oil and/or natural gas) which is confined by impermeable rock or water barriers and is 
characterized by a single natural pressure system.

Residue gas: the natural gas remaining after being processed or treated.

Shale gas: natural gas produced from organic (black) shale formations.

Tailgate: the point at which processed natural gas and NGLs leave a processing facility for transportation to end-user markets.

TBtu: one trillion British Thermal Units.

Tcf: one trillion cubic feet.

Throughput: the volume of products, such as crude oil, natural gas or water, transported or passing through a pipeline, plant, 
terminal or other facility during a particular period.

Uncommitted shippers (or walk-up shippers): customers that have not signed long-term shipper contracts and have rights 
under the FERC tariff as to rates and capacity allocation that are different than long-term committed shippers.

Volumetric fee contracts: contracts or other arrangements, including tariff provisions, that generally obligate a customer to pay 
fees based upon the extent to which such customer utilizes our assets for midstream energy services. Unlike firm fee contracts, 
under volumetric fee contracts our customers are not generally required to pay a charge to reserve an agreed upon amount of 
capacity and/or deliverability.

Wellhead: the equipment at the surface of a well that is used to control the well's pressure; also, the point at which the 
hydrocarbons and water exit the ground.

Working gas: the volume of gas in the storage reservoir that is in addition to the cushion or base gas. It may or may not be 
completely withdrawn during any particular withdrawal season. Conditions permitting, the total working capacity could be 
used more than once during any season.

Working gas storage capacity: the maximum volume of natural gas that can be cost-effectively injected into a storage facility 
and extracted during the normal operation of the storage facility. Effective working gas storage capacity excludes base gas and 
non-cycling working gas.

X/d: the applicable measurement metric per day. For example, MMcf/d means one million cubic feet per day.

PART I

As used in this Annual Report, unless the context otherwise requires, "we," "us," "our," the "Partnership," "TGE" and 

similar terms refer to Tallgrass Energy, LP, in its individual capacity or to Tallgrass Energy, LP and its consolidated 
subsidiaries collectively (including Tallgrass Equity, TEP and their respective subsidiaries), as the context requires. References 
to "Tallgrass Equity" refer to Tallgrass Equity, LLC. References to "TEP" refer to Tallgrass Energy Partners, LP. The term our 
"general partner" refers to Tallgrass Energy GP, LLC. References to "Tallgrass Development" or "TD" refer to Tallgrass 
Development, LP. References to "Kelso" are to Kelso & Company and its affiliated investment funds and, as the context may 
require, other entities under its control, and references to "EMG" are to The Energy & Minerals Group, its affiliated investment 
funds and, as the context may require, other entities under its control.

A reference to a "Note" herein refers to the accompanying Notes to Consolidated Financial Statements contained in Item 8.
—Financial Statements and Supplementary Data. In addition, please read "Cautionary Statement Regarding Forward-Looking 
Statements" and "Risk Factors" for information regarding certain risks inherent in our business. 

Cautionary Statement Regarding Forward-Looking Statements

This Annual Report and the documents incorporated by reference herein contain forward-looking statements concerning 

our operations, economic performance and financial condition. Forward-looking statements give our current expectations, 
contain projections of results of operations or of financial condition, or forecasts of future events. Words such as "could," 
"will," "may," "assume," "forecast," "position," "predict," "strategy," "expect," "intend," "plan," "estimate," "anticipate," 
"believe," "project," "budget," "potential," or "continue," and similar expressions are used to identify forward-looking 
statements. Without limiting the generality of the foregoing, forward-looking statements contained in this Annual Report 
include our expectations of plans, strategies, objectives, growth and anticipated financial and operational performance, 
including guidance regarding our infrastructure programs, revenue projections, capital expenditures and tax position. Forward-
looking statements can be affected by assumptions used or by known or unknown risks or uncertainties. Consequently, no 
forward-looking statements can be guaranteed.

A forward-looking statement may include a statement of the assumptions or bases underlying the forward-looking 
statement. We believe that we have chosen these assumptions or bases in good faith and that they are reasonable. However, 
when considering these forward-looking statements, you should keep in mind the risk factors and other cautionary statements 
in this Annual Report. Actual results may vary materially. You are cautioned not to place undue reliance on any forward-
looking statements. You should also understand that it is not possible to predict or identify all such factors and should not 
consider the following list to be a complete statement of all potential risks and uncertainties. Factors that could cause our actual 
results to differ materially from the results contemplated by such forward-looking statements include:

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

our ability to pay dividends to our Class A shareholders; 

our expected receipt of, and amounts of, distributions from Tallgrass Equity;

our ability to complete and integrate acquisitions, including integrating the acquisitions discussed in Item 1.—
Business, "Acquisitions and Dispositions;"

the demand for our services, including natural gas transportation and storage; crude oil transportation; and natural gas 
gathering and processing, crude oil storage and terminalling services, and water business services; 

our ability to successfully contract or re-contract with our customers;

large or multiple customer defaults, including defaults resulting from actual or potential insolvencies;

our ability to successfully implement our business plan;

changes in general economic conditions;

competitive conditions in our industry;

the effects of existing and future laws and governmental regulations;

actions taken by governmental regulators of our assets, including the FERC;

actions taken by third-party operators, processors and transporters;

our ability to complete internal growth projects on time and on budget;

the price and availability of debt and equity financing;

1

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

the level of production of crude oil, natural gas and other hydrocarbons and the resultant market prices of crude oil, 
natural gas, natural gas liquids, and other hydrocarbons; 

the availability and price of natural gas and crude oil, and fuels derived from both, to the consumer compared to the 
price of alternative and competing fuels;

competition from the same and alternative energy sources;

energy efficiency and technology trends;

operating hazards and other risks incidental to transporting, storing, and terminalling crude oil; transporting, storing, 
gathering and processing natural gas; and transporting, gathering and disposing of water produced in connection with 
hydrocarbon exploration and production activities;

environmental liabilities or events that are not covered by an indemnity, insurance or existing reserves;

natural disasters, weather-related delays, casualty losses and other matters beyond our control;

interest rates;

labor relations;

changes in tax laws, regulations and status;

the effects of existing and future litigation; and

certain factors discussed elsewhere in this Annual Report.

Forward-looking statements speak only as of the date on which they are made. While we may update these statements from 

time to time, we are not required to do so other than pursuant to the securities laws.

Item 1. Business

Overview

TGE is a limited partnership that owns, operates, acquires and develops midstream energy assets in North America and has 

elected to be treated as a corporation for U.S. federal income tax purposes. 

Our operations are conducted through, and our operating assets are owned by, our direct and indirect subsidiaries, 

including Tallgrass Equity, in which we directly own an approximate 55.79% membership interest as of February 8, 2019. We 
are located in and provide services to certain key United States hydrocarbon basins, including the Denver-Julesburg, Powder 
River, Wind River, Permian and Hugoton-Anadarko Basins and the Niobrara, Mississippi Lime, Eagle Ford, Bakken, 
Marcellus, and Utica shale formations. We intend to continue to utilize the significant experience of our management team to 
execute our growth strategy of acquiring midstream assets, increasing utilization of our existing assets and expanding our 
systems through construction of additional assets.

Our reportable business segments are:

•  Natural Gas Transportation—the ownership and operation of FERC-regulated interstate natural gas pipelines and an 

integrated natural gas storage facility;

•  Crude Oil Transportation—the ownership and operation of FERC-regulated crude oil pipeline systems; and

•  Gathering, Processing & Terminalling—the ownership and operation of natural gas gathering and processing facilities; 

crude oil storage and terminalling facilities; the provision of water business services primarily to the oil and gas 
exploration and production industry; the transportation of NGLs; and the marketing of crude oil and NGLs.

2

Our Assets 

The following map shows our primary assets, which consist of natural gas transportation and storage assets; crude oil 
transportation assets; natural gas gathering and processing assets; crude oil storage and terminalling assets; and water business 
services assets. Each of these assets are described in more detail below. Connected third party refineries are also indicated on 
the map below.

Natural Gas Transportation Segment

Rockies Express Pipeline. We own a 75% membership interest in Rockies Express Pipeline LLC ("Rockies Express"). 
Rockies Express owns the Rockies Express Pipeline, a FERC-regulated natural gas pipeline system with approximately 1,712 
miles of transportation pipelines, including laterals, extending from Opal, Wyoming and Meeker, Colorado to Clarington, Ohio 
(the "Rockies Express Pipeline") and consists of three zones:

•  Zone 1 - 328 miles of mainline pipeline from the Meeker Hub in Northwest Colorado, across Southern Wyoming to 
the Cheyenne Hub in Weld County, Colorado capable of transporting 2.0 Bcf/d of natural gas from west-to-east;

•  Zone 2 - 714 miles of mainline pipeline from the Cheyenne Hub to an interconnect in Audrain County, Missouri 

capable of transporting 1.8 Bcf/d of natural gas from west-to-east; and

•  Zone 3 - 643 miles of mainline pipeline from Audrain County, Missouri to Clarington, Ohio, which is bi-directional 
and capable of transporting 1.8 Bcf/d of natural gas from west-to-east and 2.6 Bcf/d of natural gas from east-to-west.

For the year ended December 31, 2018, approximately 98% of Rockies Express' revenues were generated under firm fee 

contracts.

3

The following tables provide information regarding the Rockies Express Pipeline for the years ended December 31, 2018, 

2017, and 2016 and as of December 31, 2018:

Approximate average daily deliveries (Bcf/d) (1) ..................

4.4

4.3

3.2

2018

Year Ended December 31,
2017

2016

Approximate
Capacity

Total Firm 
Contracted 
Capacity (2)

Approximate %
of Capacity
Subscribed
under Firm
Contracts

Weighted Average 
Remaining Firm 
Contract Life (3)

West-to-east..........................................
East-to-west..........................................

2.0 Bcf/d

2.6 Bcf/d

1.5 Bcf/d

2.6 Bcf/d

75%

100%

3 years

14 years

(1)  Reflects average total daily deliveries for the Rockies Express Pipeline, regardless of flow direction or distance 

traveled.

(2)  Reflects total capacity reserved under long-term firm fee contracts as of December 31, 2018. West-to-east firm 

contracted capacity excludes the 0.2 Bcf/d contracted with Ultra beginning December 1, 2019 as part of the settlement 
agreement discussed in Note 19 – Legal and Environmental Matters.

(3)  Weighted by contracted capacity as of December 31, 2018. Weighted average remaining firm contract life of west-to-
east contracts excludes the 0.2 Bcf/d contract with Ultra discussed above. After giving effect to the Ultra contract 
agreement reached in January 2017, the weighted average life of the west-to-east contract lives would be 
approximately 4 years.

TIGT System. We own a 100% membership interest in Tallgrass Interstate Gas Transmission, LLC ("TIGT"), which owns 

the Tallgrass Interstate Gas Transmission system, a FERC-regulated natural gas transportation and storage system with 
approximately 4,641 miles of varying diameter transportation pipelines serving Wyoming, Colorado, Kansas, Missouri and 
Nebraska (the "TIGT System"). The TIGT System includes the Huntsman natural gas storage facility located in Cheyenne 
County, Nebraska. The TIGT System primarily provides transportation and storage services to on-system customers such as 
local distribution companies and industrial users, including ethanol plants, and irrigation and grain drying operations, which 
depend on the TIGT System's interconnections to their facilities to meet their demand for natural gas and a majority of whom 
pay FERC-approved recourse rates. For the year ended December 31, 2018, approximately 94% of the TIGT System's 
transportation revenue was generated from contracts with on-system customers.

Trailblazer Pipeline. We own a 100% membership interest in Trailblazer Pipeline Company LLC ("Trailblazer"), which 

owns the Trailblazer Pipeline system, a FERC-regulated natural gas pipeline system with approximately 465 miles of 
transportation pipelines, including laterals, that begins along the border of Wyoming and Colorado and extends to Beatrice, 
Nebraska (the "Trailblazer Pipeline"). During the year ended December 31, 2018, substantially all of the Trailblazer Pipeline's 
operationally available long-haul capacity was contracted under firm transportation contracts.

4

The following tables provide information regarding the TIGT System and Trailblazer Pipeline for the years ended 

December 31, 2018, 2017, and 2016 and as of December 31, 2018:

Approximate average daily deliveries (Bcf/d) ......................

1.3

1.2

1.1

2018

Year Ended December 31,
2017

2016

Approximate
Capacity

Total Firm 
Contracted 
Capacity (1)

Approximate %
of Capacity
Subscribed
under Firm
Contracts

Transportation ......................................
Storage .................................................

2.0 Bcf/d
15.974 Bcf

(3)

1.6 Bcf/d
11 Bcf

80%
71%

Weighted 
Average 
Remaining Firm 
Contract Life (2)
5 years
4 years

(1)  Reflects total capacity reserved under long-term firm fee contracts, including backhaul service, as of December 31, 

2018.

(2)  Weighted by contracted capacity as of December 31, 2018.

(3)  The FERC certificated working gas storage capacity.

NatGas. We own a 100% membership interest in Tallgrass NatGas Operator, LLC ("NatGas"), which is the operator of the 

Rockies Express Pipeline and receives a fee from Rockies Express as compensation for its services.

Crude Oil Transportation Segment

Pony Express System. We own a 100% membership interest in Tallgrass Pony Express Pipeline, LLC ("Pony Express"), 

which provides crude oil transportation to customers in Wyoming, Colorado, Kansas, and the surrounding regions. Pony 
Express owns an approximately 834-mile crude oil pipeline commencing in both Guernsey, Wyoming and Weld County, 
Colorado and terminating in Cushing, Oklahoma, with delivery points at the McPherson, El Dorado and Ponca City refineries 
and in Cushing, Oklahoma (the "Pony Express System"). In the second quarter of 2018, Pony Express placed into service an 
extension of the system from an additional origin point in Weld County, Colorado located near Platteville, Colorado 
("Platteville Extension"). We believe the Pony Express System is positioned as a low-cost, competitive transportation system 
with access to Bakken Shale, DJ Basin and Powder River Basin production.

The table below sets forth certain information regarding the Pony Express System's long-haul capacity as of December 31, 

2018 and for the periods indicated:

Approximate 
Design Capacity 
(bbls/d) (1)

Approximate 
Contractible 
Capacity Under 
Contract (1)(2)

342,000

93%

Weighted Average 
Remaining Firm 
Contract Life (3)
2 years

Approximate Average Daily Throughput (bbls/d)
Year Ended December 31,
2017

2016

2018

336,314

267,734

285,507

(1)  Excludes additional capacity related to the ability to inject drag reducing agent, which is an additive that increases 

pipeline flow efficiency, and additional capacity related to expansion projects.

(2)  We are required to make no less than 10% of design capacity available for non-contract, or "walk-up", shippers. 

Approximately 93% of the remaining design capacity (or available contractible capacity) is committed under contract. 

(3)  Based on the average annual reservation capacity for each such contract's remaining life.

Powder River Gateway. In January 2019, we completed the expansion of our existing joint venture with Silver Creek 
Midstream, LLC ("Silver Creek") and acquired a 51% membership interest in Powder River Gateway, LLC ("Powder River 
Gateway"). Powder River Gateway owns the (i) Powder River Express Pipeline ("PRE Pipeline"), a 70-mile crude oil pipeline 
with a capacity of 90,000 barrels per day that transports crude oil from the Powder River Basin to Guernsey, Wyoming; (ii) Iron 
Horse Pipeline ("Iron Horse Pipeline"), a 80-mile crude oil pipeline expected to be placed into service in the second quarter of 
2019 that will have an initial capacity of approximately 100,000 barrels per day and will transport crude oil from the Powder 
River Basin to Guernsey, Wyoming; and (iii) crude oil terminal facilities in Guernsey, Wyoming with approximately 370,000 
barrels of crude storage currently in-service and over 1 million barrels of storage expected in the second quarter of 2019 once 
current construction of additional facilities is completed.

5

Gathering, Processing & Terminalling Segment

Midstream Facilities. We own a 100% membership interest in Tallgrass Midstream, LLC ("TMID"), which owns and 

operates a natural gas gathering system in the Powder River Basin (the "Douglas Gathering System"). TMID also owns and 
operates natural gas processing plants in Casper and Douglas, Wyoming and a natural gas treating facility at West Frenchie 
Draw, Wyoming (collectively with the Douglas Gathering System, the "Midstream Facilities"). The Casper and Douglas plants 
currently have combined processing capacity of approximately 190 MMcf/d. The Casper plant also has an NGL fractionator 
with a capacity of approximately 3,500 barrels per day. The natural gas processed and treated at these facilities primarily comes 
from the Wind River Basin and the Powder River Basin, both in central Wyoming. TMID also owns and operates an NGL 
pipeline that transports NGLs from a processing plant in Northeast Colorado to an interconnect with Overland Pass Pipeline, 
and an NGL pipeline that originates at our Douglas facility and interconnects with ONEOK's Bakken NGL Pipeline. Each of 
our NGL pipelines are supported by 10-year leases for 100% of their respective pipeline capacity, with the lease for the NGL 
pipeline in Northeast Colorado having commenced in October 2015, and the lease for the NGL pipeline from our Douglas 
facility having commenced on January 1, 2017. During the year ended December 31, 2018, approximately 12%, 51%, and 37% 
of TMID's Adjusted EBITDA came from firm fee, volumetric fee, and commodity sensitive contracts, respectively.

The table below sets forth certain information regarding natural gas gathering and processing at the Midstream Facilities as 

of December 31, 2018 and for the years ended December 31, 2018, 2017, and 2016:

Approximate
Capacity
(MMcf/d)

Approximate Average Volumes (MMcf/d)
Year Ended December 31,

2018

2017

2016

Gathering ...........................................
Processing..........................................

75
190 (2)

42

122

37 (1)
109

N/A

103

(1)  Reflects approximate average gathering volumes subsequent to our acquisition of the Douglas Gathering System on 

June 5, 2017.

(2)  The West Frenchie Draw natural gas treating facility treats natural gas before it flows into the Casper and Douglas 

plants and therefore does not result in additional inlet capacity.

Water Solutions. We provide water business services through our 100% membership interest in BNN Water Solutions, LLC 

("Water Solutions"). Water Solutions owns and operates a freshwater delivery and storage system and a produced water 
gathering and disposal system in Weld County, Colorado, a produced water disposal facility in Campbell County, Wyoming, 
and a produced water gathering and disposal system in North Dakota. Water Solutions is also the sole voting member and owns 
a 75.19% membership interest in BNN West Texas, LLC ("West Texas"), which owns a produced water gathering and disposal 
system in Reeves and Reagan Counties, Texas that is operated by Water Solutions and owns a 63% membership interest in 
BNN Colorado Water, LLC ("BNN Colorado"), which owns a freshwater storage reservoir and supply pipeline in Weld County, 
Colorado. These systems are used to support third party exploration, development, and production of oil and natural gas. Water 
Solutions also sources treated wastewater from municipalities in Texas and recycles flowback water and other water produced 
in association with the production of oil and gas in Colorado. In November 2018, Water Solutions acquired a 100% 
membership interest in NGL Water Solutions Bakken, LLC ("NGL Water Solutions Bakken"), which owns a produced water 
disposal system in the Bakken basin.

6

The table below sets forth certain information regarding the Water Solutions assets as of December 31, 2018 and for the 

years ended December 31, 2018, 2017, and 2016: 

Approximate
Current Design
Capacity (bbls/d)

Approximate Average Volumes (bbls/d)
Year Ended December 31,
2017

2016

2018

Freshwater .........................................
Gathering and Disposal .....................

170,863 (1)
271,500 (2)

17,849

98,489

69,139

31,511

13,201

11,307

(1)  Represents design capacity at our BNN Western, LLC ("Western") owned facilities and our BNN Colorado freshwater 

storage reservoir and supply pipeline. Western also has access to an additional 144,539 bbls/d under supply 
arrangements, which are not included in the approximate current design capacity.

(2)  Represents the combined daily disposal well injection capacity for the Western produced water gathering and disposal 
system acquired in December 2015, the West Texas produced water gathering and disposal system which commenced 
operations by Water Solutions in March 2016, the BNN North Dakota, LLC ("BNN North Dakota") produced water 
gathering and disposal system acquired in January 2018 and produced water disposal system acquired in November 
2018.

Terminals. We provide crude oil storage and terminalling services through our 100% membership interest in Tallgrass 
Terminals, LLC ("Terminals"). Terminals owns and operates several assets providing storage capacity and additional injection 
points for the Pony Express System, including the crude oil terminal near Sterling, Colorado with approximately 1.3 million 
bbls of storage capacity (the "Sterling Terminal"), the crude oil terminal in Weld County, Colorado with four truck unloading 
skids capable of receiving up to 42,000 bbls per day (the "Buckingham Terminal"), and the crude oil terminal in the Central 
Kansas Uplift that can deliver upward of 20,000 bbls per day into the Pony Express System and commenced operations in the 
first quarter of 2018 (the "Natoma Terminal"). Terminals also owns an approximately 60% membership interest in Deeprock 
Development, LLC ("Deeprock Development"), which owns crude oil terminals in Cushing, Oklahoma with approximately 4.0 
million bbls of storage capacity (the "Cushing Terminal"). In April 2018, Terminals acquired a 51% membership interest in the 
Pawnee, Colorado crude oil terminal ("Pawnee Terminal") with approximately 300,000 bbls of storage capacity. 

Stanchion. We own a 100% membership interest in Stanchion Energy, LLC ("Stanchion"), which engages in the marketing 
of crude oil. Stanchion currently consists of three of our employees who primarily engage in the purchase and sale of crude oil.

Major Customers

For the year ended December 31, 2018, Continental Resources accounted for approximately 10% of our revenues on a 

consolidated basis. The loss of this customer could have a material adverse effect on our financial results.

Organizational Structure

Our general partner interest is held by Tallgrass Energy GP, LLC, whose sole member is Tallgrass Energy Holdings, LLC 
("Tallgrass Energy Holdings"). A group of persons, which we refer to as the Exchange Right Holders, collectively own all our 
outstanding Class B shares and an equivalent number of Tallgrass Equity units. The Exchange Right Holders are entitled to 
exercise the right to exchange their Tallgrass Equity units (together with an equivalent number of Class B shares) for Class A 
shares at an exchange ratio of one Class A share for each Tallgrass Equity unit exchanged. As of February 8, 2019, the 
Exchange Right Holders primarily consist of Kelso, EMG, and Tallgrass KC. Tallgrass KC refers to Tallgrass KC, LLC, which 
is an entity primarily owned by certain members of our management. Certain of the Exchange Right Holders collectively own 
100% of the voting power of Tallgrass Energy Holdings.

On January 31, 2019, we announced that affiliates of Blackstone Infrastructure Partners (collectively, "BIP") had entered 
into a definitive purchase agreement with Kelso, EMG, and Tallgrass KC (collectively, the "Sellers"), pursuant to which BIP 
will acquire from the Sellers 100% of the membership interests in our general partner and an approximately 44% economic 
interest in us (the "Blackstone Acquisition"). One or more affiliates of GIC Special Investment Pte. Ltd. ("GIC SI"), the 
infrastructure and private equity arm of GIC Pte. Ltd., Singapore's sovereign wealth fund, will be a minority investor in the 
Blackstone Acquisition. The interests acquired in the Blackstone Acquisition will include all of the economic interests in us 
held by EMG and Kelso, and a substantial portion of the interests held by Tallgrass KC. 

Subject to customary closing conditions, the Blackstone Acquisition is expected to close within the first quarter of 2019. 

Following consummation of the Blackstone Acquisition, (i) the Exchange Right Holders are expected to consist of BIP and 
certain members of our management and (ii) BIP will own 100% of the membership interests in our general partner. 

7

While we are structured as a limited partnership, (i) we have elected to be treated as a corporation for U.S. federal income 
tax purposes, (ii) neither our general partner nor the holders of our Class B shares are entitled to receive any dividends from us, 
and (iii) our capital structure does not include incentive distribution rights. Therefore, our dividends will be made exclusively to 
our Class A shares. However, holders of our Class A shares and Class B shares vote together as a single class on all matters 
presented to our shareholders for their vote or approval, except as otherwise required by applicable law or our partnership 
agreement. The term "shares" used in this annual report refers to both the Class A shares and Class B shares representing 
limited partner interests in us. References to our "shareholders" refer to the holders of our Class A and Class B shares.

Our operations are conducted directly and indirectly through, and our operating assets are owned by, our subsidiaries. Our 

general partner is responsible for conducting our business and managing our operations. However, as of February 8, 2019, 
Tallgrass Energy Holdings effectively controls our business and affairs through the exercise of its rights as the sole member of 
our general partner, including its right to appoint members to the board of directors of our general partner. Following 
consummation of the Blackstone Acquisition, BIP will, subject to certain contractual rights, exercise such control through the 
ownership of 100% of the membership interests in our general partner. 

In connection with the closing of the initial public offering of our Class A shares (the "TGE IPO"), we, our general partner, 

Tallgrass Equity and Tallgrass Energy Holdings entered into an omnibus agreement (the "TGE Omnibus Agreement"), that 
addresses the following matters: 

•  Tallgrass Equity's obligation to reimburse Tallgrass Energy Holdings and its affiliates for expenses incurred (i) on our 
behalf, (ii) on behalf of our general partner and (iii) for any other purposes related to our business and activities or 
those of our general partner, including our public company expenses and general and administrative expenses; and 

•  Our use of the name "Tallgrass" and any associated or related marks. 

8

The chart below shows the structure of Tallgrass Energy Holdings and its subsidiaries as of February 8, 2019 in a summary 

format.

9

Previous Organizational Structure

We were initially formed in 2015 as part of a reorganization involving entities that were previously controlled by Tallgrass 
Equity to effect the TGE IPO. As of the closing of the TGE IPO in May 2015, our sole cash-generating asset was a controlling 
membership interest in Tallgrass Equity and Tallgrass Equity's sole cash-generating assets consisted of direct and indirect 
partnership interests in TEP, which was a publicly traded limited partnership at the time. 

Prior to the February 2018 merger discussed below, Tallgrass Energy Holdings was the general partner of Tallgrass 
Development. Historically, TEP acquired a number of its assets from Tallgrass Development. In connection with TEP's initial 
public offering in May 2013 (the "TEP IPO"), Tallgrass Development contributed to TEP 100% of the membership interests in 
TIGT and TMID. Following the TEP IPO, TEP acquired the following additional assets from Tallgrass Development: (1) in 
April 2014, a 100% membership interest in Trailblazer, (2) in four separate transactions, the most recent of which was effective 
on February 1, 2018, a 100% membership interest in Pony Express, (3) in January 2017, a 100% membership interest in 
NatGas and Terminals, (4) in March 2017, a 24.99% membership interest in Rockies Express, and (5) effective February 1, 
2018, a 100% membership interest in Tallgrass Operations, LLC, which primarily owned certain administrative assets 
consisting primarily of information technology assets. In addition, in May 2016 Tallgrass Development assigned to TEP its 
right to purchase a 25% membership interest in Rockies Express from a unit of Sempra U.S. Gas and Power ("Sempra") 
pursuant to the purchase agreement originally entered into between Tallgrass Development's wholly-owned subsidiary and 
Sempra in March 2016. 

On February 7, 2018, Tallgrass Development merged into Tallgrass Development Holdings, a wholly-owned subsidiary of 
Tallgrass Equity, and as a result of the merger, Tallgrass Equity acquired a 25.01% membership interest in Rockies Express and 
an additional 5,619,218 TEP common units. As consideration for the acquisition, TGE and Tallgrass Equity issued 27,554,785 
TGE Class B shares and Tallgrass Equity units, valued at approximately $644.8 million based on the closing price on February 
6, 2018, to the limited partners of Tallgrass Development. 

On March 26, 2018, we entered into an Agreement and Plan of Merger (the "Merger Agreement") with Tallgrass Equity, 
Tallgrass MLP GP, LLC, a Delaware limited liability company and the general partner of TEP ("TEP GP"), and Razor Merger 
Sub, LLC, a Delaware limited liability company. The merger transaction contemplated by the Merger Agreement (the "TEP 
Merger") was completed effective June 30, 2018, and as a result, 47,693,097 TEP common units held by the public were 
converted into the right to receive Class A shares of TGE at an exchange ratio of 2.0 Class A shares for each outstanding TEP 
common unit, TEP's incentive distribution rights were cancelled, TEP's common units ceased being publicly traded, and 100% 
of TEP's equity interests are now owned by Tallgrass Equity and its subsidiaries.

Acquisitions and Dispositions

The acquisition of midstream assets and businesses that are strategic and complementary to our existing operations 
constitutes an integral component of our business strategy and growth objectives. Such assets and businesses include natural 
gas transportation and storage; crude oil transportation; and natural gas gathering and processing, crude oil storage and 
terminalling services, and water business service assets and other energy assets that have characteristics and provide 
opportunities similar to our existing business lines and enable us to leverage our assets, knowledge and skill sets. Below are 
summaries of significant acquisitions completed in 2018 and in early 2019, as discussed in Note 3 – Acquisitions and 
Dispositions and Note 22 – Subsequent Events.

•  Deeprock North. In January 2018, we acquired a 38% membership interest in Deeprock North from Kinder Morgan 
Deeprock North Holdco, LLC for cash consideration of $19.5 million. Immediately following the acquisition, 
Deeprock North was merged into Deeprock Development. Subsequent to the acquisition and merger, Terminals owns 
approximately 60% of the combined entity.

•  Pawnee Terminal. In January 2018, we entered into an agreement to acquire a 51% membership interest in the 

Pawnee, Colorado crude oil terminal from Zenith Energy Terminals Holdings, LLC for cash consideration of 
approximately $31 million. The transaction closed in April 2018.

•  BNN North Dakota. In January 2018, we acquired a 100% membership interest in Buckhorn Energy Services, LLC 
and Buckhorn SWD Solutions, LLC, which were subsequently merged and renamed BNN North Dakota, LLC, for 
cash consideration of approximately $95 million. 

•  Additional Interest in Pony Express. In February 2018, we acquired the remaining 2% membership interest in Pony 
Express, along with administrative assets consisting primarily of information technology assets, from Tallgrass 
Development for cash consideration of approximately $60 million, bringing our aggregate membership interest in 
Pony Express to 100%.

10

•  Additional Membership Interest in Rockies Express and Additional TEP Common Units. In February 2018, Tallgrass 

Development merged into Tallgrass Development Holdings, LLC, a wholly-owned subsidiary of Tallgrass Equity, and 
as a result of the merger, Tallgrass Equity acquired a 25.01% membership interest in Rockies Express and an 
additional 5,619,218 TEP common units. As consideration for the acquisition, TGE and Tallgrass Equity 
issued 27,554,785 TGE Class B shares and Tallgrass Equity units, valued at approximately $644.8 million. Subsequent 
to the closing of the transaction, our aggregate membership interest in Rockies Express is 75%.

• 

• 

Tallgrass Crude Gathering. In February 2018, we entered into an agreement with an affiliate of Silver Creek to sell 
our 100% membership interest in Tallgrass Crude Gathering, LLC ("TCG") for approximately $50 million. The sale of 
TCG closed in February 2018. 

Joint Venture with Silver Creek. In February 2018, we entered into an agreement with Silver Creek to form Iron Horse 
Pipeline, LLC ("Iron Horse"), which owns the Iron Horse Pipeline currently under construction. In August 2018, we 
entered into an agreement with Silver Creek to expand the Iron Horse joint venture through the contribution by us and 
Silver Creek of cash and additional Powder River Basin assets. These additional contributions were completed in 
January 2019. The expanded joint venture operates under the name Powder River Gateway, LLC and owns the Iron 
Horse Pipeline, the PRE Pipeline, and crude oil terminal facilities in Guernsey, Wyoming. Effective January 1, 2019, 
we own a 51% membership interest in Powder River Gateway and operate the joint venture.

•  Acquisition of NGL Water Solutions Bakken. In November 2018, we acquired 100% of the membership interests in 
NGL Water Solutions Bakken, which was subsequently merged into BNN North Dakota, for cash consideration of 
approximately $91 million, subject to working capital adjustments.

Growth Projects

Our extensive asset base and our relationships with customers provide us with opportunities for internal growth through the 

construction of additional assets that are complementary to, and expand or extend, our existing asset base. The following 
growth projects are currently ongoing and will extend throughout 2019 and beyond: 

• 

Iron Horse Pipeline. Iron Horse Pipeline, an approximately 80-mile crude oil pipeline currently under construction, 
will have an initial capacity of approximately 100,000 barrels per day, expandable up to 200,000 barrels per day, to 
transport crude oil from the Powder River Basin to the Guernsey, Wyoming oil hub and is expected to be in-service in 
the second quarter of 2019. As discussed above, the Iron Horse Pipeline is part of the Powder River Gateway joint 
venture.

•  Grasslands Terminal. We are currently constructing the Grasslands Terminal in Platteville, Colorado, which will 

connect to the Platteville Extension and enable Pony Express to batch multiple common streams out of Platteville. The 
Grasslands Terminal is expected to be in-service by the second quarter of 2019.

•  Cheyenne Connector. We are currently constructing the Cheyenne Connector, a new pipeline lateral in Northeast 

Colorado that will transport natural gas from the DJ Basin in Weld County to the Rockies Express Pipeline's Cheyenne 
Hub, discussed below. Cheyenne Connector will be a large-diameter pipeline approximately 70 miles long, with an 
initial capacity of at least 600 mmcf/d and significant capability for expansion. Cheyenne Connector is expected to be 
in-service in the fourth quarter of 2019. 

•  Cheyenne Hub. The Rockies Express Pipeline's Cheyenne Hub is an existing natural gas facility owned and operated 
by Rockies Express Pipeline in northern Weld County. At the Cheyenne Hub, the existing Rockies Express Pipeline 
intersects and/or connects with numerous other natural gas pipelines. The Cheyenne Hub Enhancement Project 
consists of modifications to the Rockies Express Pipeline's Cheyenne Hub to accommodate firm receipt and delivery 
interconnectivity among multiple natural gas pipelines with various operating pressures and will provide customers 
significant diversity in terms of market access. Cheyenne Hub is expected to be in-service by the fourth quarter of 
2019.

•  Plaquemines Liquids Terminal. In November 2018, we entered into a joint venture agreement with Drexel Hamilton 
Infrastructure Fund I, L.P. ("DHIF") to jointly-own Plaquemines Liquids Terminal, LLC ("PLT"). We made an initial 
cash contribution of $30.7 million in exchange for a 100% preferred membership interest and a 80% common 
membership interest. DHIF contributed any and all assets and rights related to the project in exchange for a 20% 
common membership interest and the right to receive certain special distributions. PLT will construct a liquid export 
terminal facility on the Mississippi River on an approximately 600-acre site in Plaquemines Parish, Louisiana. The site 
was acquired in November 2018 pursuant to an agreement between PLT and the Plaquemines Port & Harbor Terminal 
District. The facility is expected to offer up to 20 million barrels of storage for both crude oil and refined products and 
export facilities capable of loading Suezmax and Very Large Crude Carriers ("VLCC") vessels for international 
delivery. The project is currently expected to be in-service in 2020.

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Competition

All of our businesses face strong competition for acquisitions and development of new projects from both established and 

start-up companies. Competition may increase the cost to acquire existing facilities or businesses and may result in fewer 
commitments and lower returns for new pipelines or other development projects. Our competitors may have greater financial 
resources than we possess or may be willing to accept lower returns or greater risks. Competition differs by region and by the 
nature of the business or the project involved.

Additionally, pending and future construction projects, if and when brought online, may also compete with our natural gas 
transportation, storage, gathering and processing services, crude oil transportation, storage, gathering and terminalling services, 
and water transportation, gathering, recycling and disposal services. Further, natural gas as a fuel, and fuels derived from crude 
oil, compete with other forms of energy available to users, including electricity, coal, other liquid fuels and alternative energy. 
Increased demand for such forms of energy at the expense of natural gas or fuels derived from crude oil could lead to a 
reduction in demand for our services. Moreover, several other factors may influence the demand for natural gas and crude oil 
which in turn influences the demand for our services, including price changes, the availability of natural gas and crude oil and 
other forms of energy, the level of business activity, conservation, legislation and governmental regulations, weather, and the 
ability to convert to alternative fuels.

Our principal competitors in our natural gas transportation and storage business include companies that own major natural 
gas pipelines, such as Enbridge Inc., Kinder Morgan Inc., Northern Natural Gas Company, Southern Star Central Gas Pipeline, 
Inc., Energy Transfer LP, and The Williams Companies Inc., some of whom also have existing storage facilities connected to 
their transportation systems that compete with our storage facilities.

Pony Express encounters competition in the crude oil transportation business. A number of pipeline companies compete 
with Pony Express to service takeaway volumes in markets that Pony Express currently serves, including pipelines owned and 
operated by Sinclair Oil Corporation, Plains All American Pipeline, L.P., Suncor Energy Inc., SemGroup Corporation, Magellan 
Midstream Partners, L.P., Anadarko Petroleum Corporation, NGL Energy Partners LP, Energy Transfer LP, and Enbridge 
Inc. Pony Express also competes with rail facilities, which can provide more delivery optionality to crude oil producers and 
marketers looking to capitalize on basis differentials between two primary crude oil price benchmarks (West Texas Intermediate 
Crude and Brent Crude), and with refineries that source barrels in areas served by Pony Express.

We also experience competition in the natural gas processing business. Our principal competitors for processing business 

include other facilities that service its supply areas, such as the other regional processing and treating facilities in the greater 
Powder River Basin which include plants owned and operated by Kinder Morgan, Inc., ONEOK, Inc., Western Gas Partners, 
LP, The Williams Companies Inc., and Meritage Midstream Services II, LLC. In addition, due to the competitive nature of the 
liquids-rich plays in the Wind River Basin and Powder River Basin, it is possible that one of our competitors could build 
additional processing facilities that service our supply areas. In addition, Terminals encounters competition in the crude oil 
storage and terminalling business from facilities owned by Magellan Midstream Partners, L.P., NGL Energy Partners LP, Plains 
All American, L.P., Blueknight Energy Partners, L.P., SemGroup Corporation, and Enbridge Inc. Further, we experience 
competition in the water business services. Our principal competitors in such business are other midstream companies, such as 
NGL Energy Partners LP, who compete with Water Solutions in areas of concentrated production activity.

Regulatory Environment 

Federal Energy Regulatory Commission

We provide open-access interstate transportation service on our natural gas transportation systems pursuant to tariffs 
approved by the FERC. As interstate transportation and storage systems, the rates, terms of service and continued operations of 
the Rockies Express Pipeline, the TIGT System and the Trailblazer Pipeline are subject to regulation by the FERC, under 
among other statutes, the Natural Gas Act of 1938, or NGA, the Natural Gas Policy Act of 1978, or the NGPA, and the Energy 
Policy Act of 2005, or EPAct 2005. The rates and terms of service on the Pony Express System, PRE Pipeline, and Iron Horse 
Pipeline are subject to regulation by the FERC under the Interstate Commerce Act, or the ICA, and the Energy Policy Act of 
1992. We provide interstate transportation service on the Pony Express System and PRE Pipeline pursuant to tariffs on file with 
the FERC. Our NGL pipeline that interconnects with Overland Pass Pipeline is leased to a third party who has obtained a 
waiver for itself from the FERC from the tariff, filing and reporting requirements of the ICA, and our NGL pipeline that 
interconnects with ONEOK's Bakken NGL Pipeline is leased to a third party who is obligated to operate the leased pipeline in 
conformance with the ICA as a FERC regulated NGL pipeline.

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The FERC has jurisdiction over, among other things, the construction, ownership and commercial operation of pipelines 
and related facilities used in the transportation and storage of natural gas in interstate commerce, including the modification, 
extension, enlargement and abandonment of such facilities. The FERC also has jurisdiction over the rates, charges and terms 
and conditions of service for the transportation and storage of natural gas in interstate commerce. The FERC's authority over 
interstate crude oil pipelines is less broad than its authority over interstate natural gas pipelines and includes rates, rules and 
regulations for service, the form of tariffs governing service, the maintenance of accounts and records, and depreciation and 
amortization policies.

The rates and terms for access to interstate natural gas pipeline transportation services are subject to extensive regulation 

and the FERC has undertaken various initiatives to increase competition within the natural gas industry. As a result of these 
initiatives, interstate natural gas transportation and marketing entities have been substantially restructured to remove barriers 
and practices that historically limited non-pipeline natural gas sellers, including producers, from competing effectively with 
interstate pipelines for sales to local distribution companies and large industrial and commercial customers. The FERC's 
regulations require, among other things, that interstate natural gas pipelines provide firm and interruptible transportation service 
on an open access basis, provide internet access to current information about available pipeline capacity and other relevant 
information, and permit pipeline shippers under certain circumstances to release contracted transportation and storage capacity 
to other shippers, thereby creating secondary markets for such services. The result of the FERC's initiatives has been to 
eliminate interstate natural gas pipelines' historical role of providing bundled sales service of natural gas and to require 
pipelines to offer unbundled storage and transportation services on a not unduly discriminatory or preferential basis. The rates 
for such transportation and storage services are subject to the FERC's ratemaking authority, and the FERC exercises its 
authority by applying cost-of-service principles to limit the maximum and minimum levels of tariff-based recourse rates; 
however, it also allows for discounted or negotiated rates as an alternative to cost-based rates and may grant market-based rates 
in certain circumstances. The FERC regulations also restrict interstate natural gas pipelines from sharing certain transportation 
or customer information with marketing affiliates and require that the transmission function personnel of interstate natural gas 
pipelines operate independently of the marketing function personnel of the pipeline or its affiliates.

FERC; Market Behavior Rules; Posting and Reporting Requirement; Other Enforcement Authorities

EPAct 2005, among other matters, amended the NGA to add an anti-manipulation provision that makes it unlawful for any 

entity to engage in prohibited behavior in contravention of rules and regulations to be prescribed by the FERC and, 
furthermore, provides the FERC with additional civil penalty authority. The FERC adopted rules implementing the anti-
manipulation provision of EPAct 2005 that make it unlawful for any entity, directly or indirectly in connection with the 
purchase or sale of natural gas transportation services subject to the jurisdiction of the FERC to (1) use or employ any device, 
scheme or artifice to defraud; (2) to make any untrue statement of material fact or omit to make any such statement necessary 
to make the statements made not misleading; or (3) to engage in any act or practice that operates as a fraud or deceit upon any 
person.

These anti-manipulation rules apply to interstate gas pipelines and storage companies and intrastate gas pipelines and 
storage companies that provide interstate services as well as otherwise non-jurisdictional entities to the extent the activities are 
conducted "in connection with" gas sales, purchases or transportation subject to FERC jurisdiction. EPAct 2005 also amended 
the NGA and the NGPA to give the FERC authority to impose civil penalties for violations of these statutes of more than $1 
million per day per violation. In connection with this enhanced civil penalty authority, the FERC issued policy statements on 
enforcement to provide guidance regarding the enforcement of the statutes, orders, rules and regulations it administers, 
including factors to be considered in determining the appropriate enforcement action to be taken. Should we fail to comply with 
all applicable FERC-administered statutes, rule, regulations and orders, we could be subject to substantial penalties and fines, 
including the disgorgement of unjust profits.

EPAct 2005 also amended the NGA to authorize the FERC to facilitate price transparency in markets for the sale or 
transportation of physical natural gas in interstate commerce. The FERC has taken steps to enhance its market oversight and 
monitoring of the natural gas industry by adopting rules that (1) require buyers and sellers of annual quantities of 2,200,000 
MMBtu or more of gas in any year to report by May on the aggregate volumes of natural gas they purchased or sold at 
wholesale in the prior calendar year; (2) report whether they provide prices to any index publishers and, if so, whether their 
reporting complies with the FERC's policy statement on price reporting; and (3) increase the internet posting obligations of 
interstate pipelines.

In addition, the Commodity Futures Trading Commission, or CFTC, is directed under the Commodities Exchange Act, or 
CEA, to prevent price manipulations for the commodity and futures markets, including the energy futures markets. Pursuant to 
the Dodd-Frank Wall Street Reform and Consumer Protection Act, or Dodd-Frank Act, in July 2010 and other authority, the 
CFTC has adopted anti-market manipulation regulations that prohibit fraud and price manipulation in the commodity and 
futures markets. The CFTC also has statutory authority to seek civil penalties of up to the greater of more than $1 million or 
triple the monetary gain to the violator for violations of the anti-market manipulation sections of the CEA.

13

Further, the Federal Trade Commission, or FTC, has the authority under the Federal Trade Commission Act, or FTCA, and 

the Energy Independence and Security Act of 2007, or EISA, to regulate wholesale petroleum markets. The FTC has adopted 
anti-market manipulation rules, including prohibiting fraud and deceit in connection with the purchase or sale of certain 
petroleum products, and prohibiting omissions of material information which distort or are likely to distort market conditions 
for such products. In addition to other enforcement powers it has under the FTCA, the FTC can sue violators under EISA and 
request that a court impose fines of more than $1 million per violation per day. 

The FERC also has the authority under the ICA to regulate the interstate transportation of petroleum on common carrier 

pipelines, including whether a pipeline's rates or rules and regulations for service are "just and reasonable." Among other 
enforcement powers, the FERC can order prospective rate changes, suspend the effectiveness of rates, and order reparations for 
damages. In addition, the ICA imposes potential criminal liability for certain violations of the statute. 

Certain Outstanding Notices Issued by the FERC

FERC Advanced Notice of Proposed Rulemaking, Revisions to Indexing Policies and Page 700 of FERC Form No. 6, 

Docket No. RM17-1-000

On November 2, 2016, the FERC issued an Advanced Notice of Proposed Rulemaking, under which the FERC is 

proposing changes to its regulation of oil pipelines in two different areas: (1) its policies regarding the permissible scope of rate 
increases based on its annual issuance of changes to the generic oil pipeline index, based on specific pipelines' earnings or their 
specific changes to costs; and (2) the reporting requirements for page 700 of FERC Form No. 6, Annual Report of Oil Pipeline 
Companies. The FERC's Advanced Notice of Proposed Rulemaking does not propose specific regulations, and may be 
followed by a Notice of Proposed Rulemaking proposing specific regulations or a Policy Statement announcing new or 
changed policies. Comments have been filed with the FERC by interested parties and the proceeding is pending before the 
FERC.

Notice of Inquiry on FERC's Pipeline Certificate Policy Statement, PL18-1-000

On April 19, 2018, the FERC issued a Notice of Inquiry regarding whether it should revise its current policy statement on 

its review and authorization of natural gas pipelines under Section 7 of the Natural Gas Act. The current policy statement, 
"Certification of New Interstate Natural Gas Pipeline Facilities - Statement of Policy," was issued in 1999. The Notice of 
Inquiry requested comments in four general areas: (1) the reliance on precedent agreements to demonstrate need for a proposed 
project; (2) the potential exercise of eminent domain and landowner interests; (3) the FERC's evaluation of alternatives and 
environmental effects under the National Environmental Policy Act and the Natural Gas Act; and (4) the efficiency and 
effectiveness of the FERC's certificate processes. Comments have been filed by interested parties and the proceeding is pending 
before the FERC.

Examples of Our Dockets at the FERC

Trailblazer 2018 General Rate Case Filing

On June 29, 2018, Trailblazer filed a general rate case with the FERC proposing, among other things, an increase in rates 
on Trailblazer's Existing System Firm Transportation Service and a decrease in rates for Expansion System Firm Transportation 
Service and interruptible services. On July 31, 2018, the FERC issued an Order: (1) approving the as-filed rate decreases for 
Expansion System Firm Transportation Service and interruptible services, effective August 1, 2018; (2) accepting and 
suspending the rest of the rate case filing (including the proposed rate increases) to become effective January 1, 2019 subject to 
refund, and establishing hearing and settlement procedures; and (3) establishing a paper hearing to examine the extent to which 
Trailblazer is entitled to an Income Tax Allowance. Parties have submitted briefs on the Income Tax Allowance issue and the 
paper hearing remains pending before the FERC. The remaining issues are currently subject to settlement judge procedures.

Cheyenne Hub Enhancement Project

On March 2, 2018, Rockies Express submitted an application pursuant to section 7(c) of the NGA for a certificate of public 

convenience and necessity authorizing the construction and operation of certain booster compressor units and ancillary 
facilities located at the Cheyenne Hub in Weld County, Colorado that will enable Rockies Express to provide a new hub service 
allowing for firm receipts and deliveries between Rockies Express and certain other interconnected pipelines at the Cheyenne 
Hub. Rockies Express filed this certificate application in conjunction with a concurrently filed certificate application by 
Cheyenne Connector, LLC ("Cheyenne Connector") for the Cheyenne Connector Pipeline Project further described below. The 
comment period for the Cheyenne Hub Enhancement Project closed on April 9, 2018. To date, various comments have been 
filed by market participants and others regarding the proposed project. Rockies Express has also responded to data requests 
from the FERC's relevant program offices. On October 11, 2018, the FERC issued a Notice of Schedule of Environmental 
Review setting December 18, 2018 as the date of issuance of the Environmental Assessment and March 18, 2019 as the 
deadline for decisions by other federal agencies on requests for authorizations for the proposed project. On December 18, 2018, 
the FERC issued the Environmental Assessment.

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Cheyenne Connector Pipeline Project

On March 2, 2018, Cheyenne Connector, an indirect subsidiary of TGE, submitted an application pursuant to section 7(c) 

of the NGA for a certificate of public convenience and necessity to construct and operate a 70-mile, 36-inch pipeline to 
transport natural gas from multiple gas processing plants in Weld County, Colorado to Rockies Express' Cheyenne Hub. The 
comment period for the Cheyenne Connector Pipeline Project closed on April 9, 2018. To date, various comments have been 
filed by market participants and others regarding the proposed project. Cheyenne Connector has also responded to data requests 
from the FERC's relevant program offices. On October 11, 2018, the FERC issued a Notice of Schedule of Environmental 
Review setting December 18, 2018 as the date of issuance of the Environmental Assessment and March 18, 2019 as the 
deadline for decisions by other federal agencies on requests for authorizations for the proposed project. On December 18, 2018, 
the FERC issued the Environmental Assessment.

For additional information regarding these dockets and certain other regulatory filings with the FERC, see Note 18 –

 Regulatory Matters.

Pipeline and Hazardous Materials Safety Administration

We are also subject to safety regulations imposed by PHMSA, including those regulations requiring us to develop and 
maintain integrity management programs to comprehensively evaluate certain areas along our pipelines and take additional 
measures to protect pipeline segments located in areas, which are referred to as high consequence areas, or HCAs, where a leak 
or rupture could potentially do the most harm.

In January 2012, the Pipeline Safety, Regulatory Certainty, and Job Creation Act of 2011, or The Pipeline Safety Act of 
2011, which amended the Pipeline Safety Improvement Act of 2002, increased penalties for violations of safety laws and rules, 
among other matters, and may result in the imposition of more stringent regulations in the next few years. This legislation also 
requires the U.S. Department of Transportation to study and report to Congress on other areas of pipeline safety, including 
expanding the reach of the integrity management regulations beyond high consequence areas, but restricts the U.S. Department 
of Transportation from promulgating expanded integrity management rules during the review period and for a period following 
submission of its report to Congress unless the rulemaking is needed to address a present condition that poses a risk to public 
safety, property or the environment. PHMSA issued a final rule effective October 25, 2013 that implemented aspects of the new 
legislation. Among other things, the final rule increases the maximum civil penalties for violations of pipeline safety statutes or 
regulations, broadens PHMSA's authority to submit information requests, and provides additional detail regarding PHMSA's 
corrective action authority. In addition, the Protecting our Infrastructure of Pipelines and Enhancing Safety Act of 2016, or 
PIPES Act, reauthorized PHMSA's oil and gas pipeline programs through 2019 and gave PHMSA power to issue emergency 
orders upon finding an imminent hazard, required PHMSA to issue safety standards for underground natural gas storage 
facilities, set deadlines for conducting post-inspection briefings and making findings, required liquid pipeline operators to 
undertake new safety measures, and required certain updates to the PHMSA website.

Additionally, PHMSA is also currently considering changes to its regulations. On December 14, 2016, PHMSA issued an 
interim final rule, or IFR, that addresses safety issues related to downhole facilities, including well integrity, well bore tubing, and 
casing at underground natural gas storage facilities. The IFR incorporates by reference two of the American Petroleum Institute's 
Recommended Practice standards and mandates certain reporting requirements for operators of underground natural gas storage 
facilities. Operators of natural gas storage facilities were given one year from January 18, 2017, the effective date of the IFR, to 
implement this first set of PHMSA regulations governing underground storage fields. PHMSA determined, however, that it will 
not issue enforcement citations to any operators for violations of provisions of the IFR that had previously been non-mandatory 
provisions of American Petroleum Institute Recommended Practices 1170 and 1171 until one year after PHMSA issues a final 
rule. On January 13, 2017, PHMSA finalized new hazardous liquid pipeline safety regulations. Among other things, the final rule 
would have required additional event-driven and periodic inspections, required the use of leak detection systems on all hazardous 
liquid  pipelines,  modified  repair  criteria,  and  required  certain  pipelines  to  eventually  accommodate  in-line  inspection  tools. 
However, on January 24, 2017, this rule was withdrawn for further review by the Trump Administration and was never published 
in the Federal Register. 

Also, on April 8, 2016, PHMSA published a notice of proposed rule-making, or NPRM, addressing natural gas transmission 
and gathering lines. The proposed rule would include changes to existing integrity management requirements and would expand 
assessment and repair requirements to pipelines in areas with medium population densities (referred to as Moderate Consequence 
Areas or MCAs), along with other changes. This NPRM builds on an Advisory Bulletin PHMSA issued in May 2012, which 
advised  pipeline  operators  of  anticipated  changes  in  annual  reporting  requirements  and  that  if  they  are  relying  on  design, 
construction, inspection, testing, or other data to determine the pressures at which their pipelines should operate, the records of 
that data must be traceable, verifiable and complete. Locating such records and, in the absence of any such records, verifying 
maximum pressures through physical testing (including hydrotesting) or modifying or replacing facilities to meet the demands of 
such pressures, could significantly increase our costs. TIGT continues to investigate and, when necessary, report to PHMSA the 
miles of pipeline for which it has incomplete records for maximum allowable operating pressure, or MAOP. We are currently 

15

undertaking an extensive internal record review in view of the anticipated PHMSA annual reporting requirements. Additionally, 
failure to locate such records or verify maximum pressures could result in reductions of allowable operating pressures, which 
would reduce available capacity on our pipelines. At the state level, several states have passed legislation or promulgated rulemaking 
dealing with pipeline safety. There can be no assurance as to the amount or timing of future expenditures for pipeline integrity 
regulation, and actual future expenditures may be different from the amounts we currently anticipate. Regulations, changes to 
regulations or an increase in public expectations for pipeline safety may require additional reporting, the replacement of some of 
our pipeline segments, the addition of monitoring equipment and more frequent inspection or testing of our pipeline facilities. 
Any repair, remediation, preventative or mitigating actions may require significant capital and operating expenditures.

Pipeline Integrity Issues

The ultimate costs of compliance with the integrity management rules are difficult to predict. Changes such as advances of 

in-line inspection tools, identification of additional threats to a pipeline's integrity and changes to the amount of pipe 
determined to be located in HCAs or expansion of integrity management requirements to areas outside of HCAs can have a 
significant impact on the costs to perform integrity testing and repairs. In July 2018, PHMSA issued an advance notice of 
proposed rulemaking seeking comment on the class location requirements for natural gas transmission pipelines, and 
particularly the actions operators must take when class locations change due to population growth or building construction near 
the pipeline. We will continue pipeline integrity testing programs to assess and maintain the integrity of its existing and future 
pipelines as required by the U.S. Department of Transportation regulations. The results of these tests could cause us to incur 
significant and unanticipated capital and operating expenditures for repairs or upgrades deemed necessary to ensure the 
continued safe and reliable operation of its pipelines, which expenditures could be material.

From time to time, our pipelines may experience integrity issues. These integrity issues may cause explosions, fire, damage 
to the environment, damage to property and/or personal injury or death. In connection with these incidents, we may be sued for 
damages caused by an alleged failure to properly mark the locations of our pipelines and/or to properly maintain our pipelines. 
Depending upon the facts and circumstances of a particular incident, state and federal regulatory authorities may seek civil and/
or criminal fines and penalties and we may also be subject to private civil liability for such matters. 

Trailblazer

Starting in 2014 Trailblazer's operating capacity was decreased as a result of smart tool surveys that identified 

approximately 25 - 35 miles of pipe as potentially requiring repair or replacement. During 2016 and 2017, Trailblazer incurred 
approximately $21.8 million of remediation costs to address this issue, including replacing approximately 8 miles of pipe. To 
date the pressure and capacity reduction has not prevented Trailblazer from fulfilling its firm service obligations at existing 
subscription levels or had a material adverse financial impact on us. However, Trailblazer continued performing remediation to 
increase and maximize its operating capacity over the long-term and spent approximately $21 million during 2018 for this pipe 
replacement and remediation work. As of October 2018, the pipeline was returned to its maximum allowable operating 
capacity. Trailblazer is exploring all possible cost recovery options to recover expenditures, including recovery through a 
general rate increase, negotiated rate agreements with its customers, or other FERC-approved recovery mechanisms.

In connection with TEP's acquisition of Trailblazer in April 2014, TD agreed to indemnify TEP for certain out of pocket 

costs related to repairing or remediating the Trailblazer Pipeline. The contractual indemnity was capped at $20 million and 
subject to an annual $1.5 million deductible. TEP has received the entirety of the $20 million from TD pursuant to the 
contractual indemnity as of December 31, 2017.

Pony Express

In connection with certain crack tool runs on the Pony Express System completed in 2015, 2016 and 2017, Pony Express 

completed approximately $18 million of remediation for anomalies identified on the Pony Express System associated with 
portions of the pipeline that were converted from natural gas to crude oil service. Remediation work was substantially complete 
as of March 1, 2018. 

Environmental, Health and Safety Matters

General

The ownership, operation and expansion of our assets are subject to federal, state and local laws, regulations and potential 

liabilities arising under or relating to the protection or preservation of the environment, natural resources and human health. 
These laws and regulations can restrict or impact our business activities in many ways, such as restricting the way we can 
handle or dispose of our wastes, requiring remedial action to mitigate pollution conditions that may be caused by our operations 
or that are attributable to former operations, regulating future construction activities to mitigate harm to threatened or 
endangered species, wetlands and migratory birds, and requiring the installation and operation of pollution control or seismic 
monitoring equipment. The cost of complying with these laws and regulations can be significant, and we expect to incur 
significant compliance costs in the future as new, more stringent requirements are adopted and implemented. 

16

Failure to comply with existing environmental laws, regulations, permits, approvals or authorizations or to meet the 

requirements of new environmental laws, regulations or permits, approvals and authorizations may trigger a variety of 
administrative, civil and criminal enforcement measures, including the assessment of monetary penalties and/or temporary or 
permanent interruptions in our operations that could influence our business, financial position, results of operations and 
prospects. Certain environmental statutes impose strict joint and several liability for costs required to clean up and restore sites 
where hazardous substances, hydrocarbons or wastes have been disposed or otherwise released. The costs and liabilities 
resulting from a failure to comply with environmental laws and regulations could negatively affect our business, financial 
position, results of operations and prospects. Moreover, it is not uncommon for neighboring landowners and other third parties 
to file claims for personal injury and property damage allegedly caused by the release of hazardous substances, hydrocarbons or 
other waste products into the environment.

In addition, we have agreed to a number of conditions in our environmental permits, approvals and authorizations that 
require the implementation of environmental habitat restoration, enhancement and other mitigation measures that involve, 
among other things, ongoing maintenance and monitoring. Governmental authorities may require, and community groups and 
private persons may seek to require, additional mitigation measures in the future to further protect ecologically sensitive areas 
where we currently operate, and would operate in the future, and we are unable to predict the effect that any such measures 
would have on our business, financial position, results of operations or prospects.

We are also subject to the requirements of the Occupational Health and Safety Act, or OSHA, the Pipeline Safety Act and 

other comparable federal and state statutes. In general, we expect that it may have to increase expenditures in the future to 
comply with higher industry and regulatory safety standards. Such increases in expenditures could become significant over 
time.

Historically, our total expenditures for environmental control measures and for remediation have not been significant in 
relation to our consolidated financial position or results of operations. It is reasonably likely, however, that the long-term trend 
in environmental legislation and regulations will eventually move towards more restrictive standards. Compliance with these 
standards is expected to increase the cost of conducting business.

For additional information regarding Environmental, Health and Safety Matters, please read Item 1A.—Risk Factors.

Air Emissions

Our operations are subject to the federal Clean Air Act, or CAA, and comparable state laws and regulations. These laws 
and regulations regulate emissions of air pollutants from various industrial sources, including natural gas processing plants and 
compressor stations, and also impose various monitoring and reporting requirements. Such laws and regulations may require 
that we obtain pre-approval for the construction or modification of certain projects or facilities expected to produce air 
emissions or result in the increase of existing air emissions (including GHG emissions, as discussed below), obtain and strictly 
comply with air permits containing various emissions and operational limitations and/or install emission control equipment. We 
may be required to incur certain capital expenditures in the future for air pollution control equipment and technology in 
connection with obtaining and maintaining operating permits and approvals for air emissions.

The EPA finalized a rule, effective August 2, 2016, under the New Source Performance Standard Program, or NSPS 
Program, to limit methane emissions from the oil and gas and transmission sectors. The rule sets additional emissions limits for 
volatile organic compounds and regulates methane emissions for new and modified sources in the oil and gas industry. In 
October 2018, the EPA proposed a rule to reconsider and amend various requirements of the NSPS standard. However, the 
NSPS rule currently remains in effect. The EPA also finalized a rule effective August 2, 2016 regarding the alternative criteria 
for aggregating multiple small surface sites into a single source for air-quality permitting purposes. EPA draft guidance issued 
in September 2018 clarified that this rule pertains to the oil and gas industry. Also, effective January 17, 2017, the Bureau of 
Land Management of the U.S. Department of the Interior, or BLM, imposed new rules to reduce venting, flaring and leaks 
during oil and natural gas production activities on onshore federal and Indian lands. This rule was suspended, stayed, and 
reinstated before the BLM issued a final rule in September 2018 that rescinds and revises many of the requirements of the 2017 
rule. The revision rule is being challenged in the U.S. District Court for the Northern District of California but currently 
remains in effect.

Developments in GHG Regulations

Methane, a primary component of natural gas, and carbon dioxide, a byproduct of the burning of natural gas and products 

produced from crude oil, are examples of GHGs. The EPA has determined that the emission of GHGs presents an 
endangerment to public health and the environment because emissions of such gases contribute to the warming of the Earth's 
atmosphere and other climatic changes. Various laws and regulations exist or are under development that seek to regulate the 
emission of such GHGs, including the EPA programs to control GHG emissions and state actions to develop statewide or 
regional programs. In recent years, the U.S. Congress has considered, but not adopted, legislation to reduce emissions of 
GHGs. There have also been efforts to regulate GHGs at an international level, most recently in the Paris Agreement, which 

17

was signed on April 22, 2016 by 175 countries, including the United States. The Paris Agreement will require countries to 
review and "represent a progression" in their intended, nationally-determined contributions, which set GHG emission reduction 
goals every five years beginning in 2020. However, in August of 2017, the United States informed the United Nations of its 
intent to withdraw from the Paris Agreement. The earliest possible effective withdrawal date from the Paris Agreement is 
November 2020. 

Because our operations, including our compressor stations, emit various types of GHGs, primarily methane and carbon 

dioxide, such new legislation or regulation could increase our costs related to operating and maintaining our facilities. 
Depending on the particular new law, regulation or program adopted, we could be required to incur capital expenditures for 
installing new emission controls on our facilities, acquire permits or other authorizations for emissions of GHGs from our 
facilities, acquire and surrender allowances for our GHG emissions, pay taxes related to our GHG emissions and administer 
and manage a GHG emissions program. We are not able at this time to estimate such increased costs; however, as is the case 
with similarly situated entities in the industry, they could be significant to us. While we may be able to include some or all of 
such increased costs in the rates charged by our pipelines, such recovery of costs in all cases is uncertain and may depend on 
events beyond our control including the outcome of future rate proceedings before the FERC and the provisions of any final 
legislation or other regulations. Similarly, while we may be able to recover some or all of such increased costs in the rates 
charged by our processing facilities, such recovery of costs is uncertain and may depend on the terms of our contracts with our 
customers. In addition, new laws, regulations, or programs adopted could also impact our customers' operations or the overall 
demand for fossil fuels. Any of the foregoing could have an adverse effect on our business, financial position, results of 
operations and prospects.

Regulation of Hydraulic Fracturing

A sizeable portion of the hydrocarbons we transport, process, and store comes from hydraulically fractured wells. 
Hydraulic fracturing is an important and common practice that is used to stimulate production of hydrocarbons from tight 
formations. The process typically involves the injection of water, sand and a small percentage of chemicals under pressure into 
the formation to fracture the surrounding rock and stimulate production. The process is regulated by state agencies, typically 
the state's oil and gas commission; however, the EPA has asserted federal regulatory authority over certain hydraulic fracturing 
activities involving diesel under the federal Safe Drinking Water Act, or SDWA, and has released draft permitting guidance for 
hydraulic fracturing activities that use diesel in fracturing fluids in those states where the EPA is the permitting authority. A 
number of federal agencies, including the EPA and the U.S. Department of Energy, are analyzing, or have been requested to 
review, a variety of environmental issues associated with hydraulic fracturing. In addition, some states, including those in 
which we operate, have adopted, and other states are considering adopting, regulations that could impose more stringent 
disclosure and/or well construction requirements on hydraulic fracturing operations. Other states, including states in which we 
operate, have restrictions on produced water storage from hydraulic fracturing operations and the operation of produced water 
disposal wells. Local governments also may seek to adopt ordinances within their jurisdictions regulating the time, place and 
manner of drilling activities in general or hydraulic fracturing activities in particular, and in some cases, may seek to ban 
hydraulic fracturing entirely. Some state and local authorities have considered or imposed new laws and rules related to 
hydraulic fracturing, including temporary or permanent bans, additional permit requirements, operational restrictions and 
chemical disclosure obligations on hydraulic fracturing in certain jurisdictions or in environmentally sensitive areas. 

 If new laws or regulations that significantly restrict hydraulic fracturing are adopted, such laws could make it more 
difficult or costly for our customers to perform fracturing to stimulate production from tight formations. Restrictions on 
hydraulic fracturing could also reduce the volume of crude oil, natural gas, and NGLs that our customers produce, and could 
thereby adversely affect our revenues and results of operations.

Hazardous Substances and Waste

Our operations are subject to environmental laws and regulations relating to the management and release of hazardous 
substances, nonhazardous and hazardous wastes and petroleum hydrocarbons. These laws generally regulate the generation, 
storage, treatment, transportation and disposal of nonhazardous and hazardous waste and may impose strict joint and several 
liability for the investigation and remediation of affected areas where hazardous substances may have been released or 
disposed. For instance, the Comprehensive Environmental Response, Compensation, and Liability Act, or CERCLA, and 
comparable state laws impose liability, without regard to fault or the legality of the original conduct, on certain classes of 
persons that contributed to the release or threatened release of a hazardous substance into the environment. We may handle 
hazardous substances within the meaning of CERCLA, or analogous state laws, in the course of our ordinary operations and, as 
a result, may be jointly and severally liable under CERCLA for all or part of the costs required to clean up sites at which these 
hazardous substances have been released or threatened to be released into the environment.

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We also generate wastes that are subject to the Resource Conservation and Recovery Act, or RCRA, and comparable state 

laws. RCRA regulates both nonhazardous and hazardous solid wastes, but it imposes strict requirements on the generation, 
storage, treatment, transportation and disposal of hazardous wastes. It is possible that wastes resulting from our operations that 
are currently treated as non-hazardous wastes could be designated as "hazardous wastes" in the future, subjecting us to more 
rigorous and costly management and disposal requirements. It is also possible that federal or state regulatory agencies will 
adopt stricter management or disposal standards for non-hazardous wastes, including natural gas wastes. Any such changes in 
the laws and regulations could have a material adverse effect on our business, financial position, results of operations and 
prospects or otherwise impose limits or restrictions on our operations or those of our customers.

In some cases, we own or lease properties where hydrocarbons are being or have been handled for many years. 

Hydrocarbons or other wastes may have been disposed of or released on or under the properties owned or leased by us or on or 
under the locations where these hydrocarbons and wastes have been transported for treatment or disposal. We could also have 
liability for releases or disposal on properties owned or leased by others. These properties and the wastes disposed thereon may 
be subject to CERCLA, RCRA and analogous state laws. Under these laws, we could be required to remove or remediate 
previously disposed wastes (including wastes disposed of or released by prior owners and operators), to clean up contaminated 
property (including contaminated groundwater) or to perform remedial operations to prevent future contamination.

Our produced water disposal operations require it to comply with the Class II well standards under the federal SDWA. The 

SDWA imposes requirements on owners and operators of Class II wells through the EPA's Underground Injection Control 
program, including construction, operating, monitoring and testing, reporting and closure requirements. Our disposal wells are 
also subject to comparable state laws and regulations. Compliance with current and future laws and regulations regarding our 
produced water disposal wells may impose substantial costs and restrictions on our produced water disposal operations, as well 
as adversely affect demand for our produced water disposal services. State and federal regulatory agencies recently have 
focused on a possible connection between the operation of produced water injection wells used for oil and gas waste disposal 
and seismic activity and tremors. When caused by human activity, such events are called induced seismicity. In some instances, 
operators of produced water injection wells in the vicinity of minor seismic events have been ordered to reduce produced water 
injection volumes or suspend operations. Regulatory agencies are continuing to study possible linkage between produced water 
injection activity and induced seismicity. These developments could result in additional regulation of produced water injection 
wells, such regulations could impose additional costs and restrictions on our produced water disposal operations.

Federal and State Waters

The Federal Water Pollution Control Act, also known as the Clean Water Act, or the CWA, and comparable state laws 
impose restrictions and strict controls regarding the discharge of pollutants, including petroleum products, into state waters or 
waters of the United States. In 2015, the EPA and the U.S. Army Corps of Engineers adopted a rule to clarify the meaning of 
the term "waters of the United States" with respect to federal jurisdiction. Many interested parties believe that the rule expands 
federal jurisdiction under the CWA. This rule was initially challenged in federal courts at both the appellate and district court 
levels. It was stayed nationwide by the U.S. Court of Appeals for the Sixth Circuit but, based on a January 2018 U.S. Supreme 
Court decision determining that only the district courts have jurisdiction to hear the challenges, the Sixth Circuit stay was 
withdrawn. Some federal district courts have enjoined the rule, but the rule is currently effective in over 20 states. In February 
2018, the agencies also published a final rule adding a February 6, 2020 applicability date to the 2015 rule, but this rule was 
enjoined nationwide in August 2018. In December 2018, the EPA and the U.S. Army Corp of Engineers released a proposed 
rule to redefine the extent of CWA jurisdiction. If finalized, this rule would replace the 2015 rule defining "waters of the United 
States" and the scope of federal jurisdiction. 

Regulations promulgated pursuant to the CWA and analogous state laws require that entities that discharge into federal 

and/or state waters obtain National Pollutant Discharge Elimination System, or NPDES, permits and/or state permits 
authorizing these discharges. The CWA and analogous state laws assess administrative, civil and criminal penalties for 
discharges of unauthorized pollutants into the water and impose substantial liability for the costs of removing spills from such 
waters. In addition, the CWA and analogous state laws require that individual permits or coverage under general permits be 
obtained by covered facilities for discharges of storm water runoff. Some states also maintain groundwater protection programs 
that require permits for discharges or operations that may impact groundwater. We believe that we are in substantial compliance 
with the CWA permitting requirements as well as the conditions imposed thereunder and that continued compliance with such 
existing permit conditions will not have a material effect on our results of operations. 

The primary federal law related to oil spill liability is the Oil Pollution Act, or OPA, which amends and augments oil spill 
provisions of the CWA and imposes certain duties and liabilities on certain "responsible parties" related to the prevention of oil 
spills and damages resulting from such spills in or threatening United States waters or adjoining shorelines. Spill prevention, 
control and countermeasure requirements of federal laws and analogous state laws require us to maintain spill prevention 
control and countermeasure plans. These laws also require appropriate containment berms and similar structures to help prevent 
the contamination of regulated waters in the event of a hydrocarbon tank spill, rupture or leak. Regulations promulgated 
pursuant to OPA further require certain facilities to maintain oil spill prevention and oil spill contingency plans. A liable 

19

"responsible party" includes the owner or operator of a facility, vessel or pipeline that is a source of an oil discharge or that 
poses the substantial threat of discharge, or in the case of offshore facilities, the lessee or permittee of the area in which a 
discharging facility is located. OPA assigns joint and several liability, without regard to fault, to each liable party for oil 
removal costs and a variety of public and private damages. Although defenses exist to the liability imposed by OPA, they are 
limited. In the event of an oil discharge or substantial threat of discharge, we may be liable for costs and damages.

Endangered Species

The Endangered Species Act, or ESA, restricts activities that may affect endangered or threatened species or their habitats. 

While some of our operations may be located in areas that are designated as habitats for endangered or threatened species, we 
believe that we are in substantial compliance with the ESA. However, the designation of previously unlisted endangered or 
threatened species could cause us to incur additional costs or become subject to operating restrictions or bans or limit future 
development in the affected areas.

National Environmental Policy Act

The National Environmental Policy Act, or NEPA, establishes a national environmental policy and goals for the protection, 
maintenance and enhancement of the environment and provides a process for implementing these goals within federal agencies. 
A major federal agency action having the potential to significantly impact the environment requires review under NEPA and, as 
a result, many activities requiring FERC or other federal approval must undergo a NEPA review. A NEPA review can create 
delays and increased costs that could materially adversely affect our operations.

Employee Safety

We are subject to the requirements of OSHA and comparable state statutes that regulate the protection of the health and 

safety of workers. In addition, the OSHA hazard communication standard requires that information be maintained about 
hazardous materials used or produced in operations and that this information be provided to employees, state and local 
government authorities and citizens. We believe that our operations are in substantial compliance with OSHA requirements, 
including general industry standards, record keeping requirements, and monitoring of occupational exposure to regulated 
substances.

Seasonality

Weather generally impacts natural gas demand for power generation, heating purposes and other natural gas usages, which 

in turn influences the value of transportation and storage. Price volatility also affects gas prices, which in turn influences 
drilling and production. Peak demand for natural gas typically occurs during the winter months, caused by heating demand. 
Nevertheless, because a high percentage of our natural gas transportation and storage and crude oil transportation revenues are 
derived from firm capacity reservation fees under long-term firm fee contracts, our revenues attributable to those segments are 
not generally seasonal in nature. We experience some seasonality in our processing segment, as volumes at our processing 
facilities are slightly higher in the summer months. We also experience some seasonality in our maintenance, repair, overhaul, 
integrity, and other projects, as warm weather months are most conducive to efficient execution of these activities.

Title to Properties and Rights-of-Way

Our real property generally falls into two categories: (i) parcels that we own in fee and (ii) parcels in which our interest 

derives from leases, easements, rights-of-way, permits, surface use agreements, or licenses from landowners or governmental 
authorities, permitting the use of such land for our operations. We believe that we have satisfactory title to the material portions 
of the land on which our pipelines and facilities are owned by us in fee title. The remainder of the land on which our pipelines 
and facilities are located are held by us pursuant primarily to leases, easements, rights-of-way, permits, surface use agreements 
or licenses between us, as grantee, and a third party, as grantor. We believe that we have satisfactory rights to all of the material 
parcels in which our interest derives from leases, easements, rights-of-way, permits, surface use agreements, and licenses.

Insurance

We generally share insurance coverage with Tallgrass Energy Holdings pursuant to the terms of the TGE Omnibus 

Agreement and an Omnibus Agreement dated May 17, 2013 entered into among TEP, TEP GP, Tallgrass Development and the 
general partner of Tallgrass Development (the "TEP Omnibus Agreement"). This shared insurance program includes general 
and excess liability insurance, auto liability insurance, workers' compensation insurance, pollution, business interruption and 
property and director and officer liability insurance. All insurance coverage is in amounts which management believes are 
reasonable and appropriate.

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Employees

We are managed and operated by the board of directors and executive officers of our general partner. As of December 31, 
2018, we employed approximately 750 full-time employees through Tallgrass Management, LLC ("Tallgrass Management"). 
Prior to July 1, 2018, Tallgrass Management was a wholly-owned subsidiary of Tallgrass Energy Holdings. Effective July 1, 
2018, Tallgrass Management was contributed to Tallgrass Equity in connection with the TEP Merger. As a result, the costs of 
employer and director compensation and benefits are now incurred directly by Tallgrass Equity.

Under the terms of the TGE Omnibus Agreement, the TEP Omnibus Agreement and our partnership agreement, we 
reimburse Tallgrass Energy Holdings (and its affiliates) and our general partner, respectively, for the provision of various 
general and administrative services for our benefit and for direct expenses incurred by Tallgrass Energy Holdings (and its 
affiliates) or our general partner on our behalf, including services performed and expenses incurred by our executive 
management personnel in connection with our business and affairs.

Available Information

We make certain filings with the SEC, including our Annual Report on Form 10-K, quarterly reports on Form 10-Q, 
current reports on Form 8-K, and all amendments and exhibits to those reports. We make such filings available free of charge 
through our website, www.tallgrassenergy.com, as soon as reasonably practicable after they are filed with the SEC. The filings 
are also available through the SEC's website, www.sec.gov. Our press releases and recent presentations are also available on 
our website.

Item 1A. Risk Factors 

Limited partner interests are inherently different from shares of capital stock of a corporation, although many of the 
business risks to which we are subject are similar to those that would be faced by a corporation engaged in similar businesses. 
If any of the following risks were to occur, our business, financial condition or results of operations could be materially 
adversely affected. In that case, we might not be able to pay quarterly cash dividends on our Class A shares at the current 
dividend level, or pay any dividend at all, and the trading price of our Class A shares could decline.

Risks Related to Our Business 

We may not have sufficient cash from operations following the establishment of cash reserves and payment of fees and 

expenses, including cost reimbursements to our general partner and its affiliates, to enable us to pay the quarterly cash 
dividend at the current dividend level, or at all, to holders of our Class A shares.

We may not have sufficient available cash each quarter to enable us to pay the quarterly cash dividend at the current 

dividend level or at all. The amount of cash we have available for dividends on our Class A shares principally depends upon the 
amount of cash we generate from our operations, which will fluctuate from quarter to quarter based on, among other things:

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

the level of firm services we provide to customers pursuant to firm fee contracts and the volume of customer products 
we transport, store, process, gather, treat and dispose using our assets;

our ability to renew or replace expiring long-term firm fee contracts with other long-term firm fee contracts;

the creditworthiness of our customers, particularly customers who are subject to firm fee contracts;

our ability to source, complete and integrate acquisitions; 

the level of production of crude oil, natural gas and other hydrocarbons and the resultant market prices of natural gas, 
NGLs, crude oil and other hydrocarbons;

the actual and anticipated future prices, and the volatility thereof, of natural gas, crude oil and other commodities;

changes in the fees we charge for our services, including firm services and interruptible services;

our ability to identify, develop, and complete internal growth projects or expansion capital expenditures on favorable 
terms to improve optimization of our current assets;

regional, domestic and foreign supply and perceptions of supply of natural gas, crude oil and other hydrocarbons; 

the level of demand and perceptions of demand in end-user markets we directly or indirectly serve; 

applicable laws and regulations affecting our and our customers' business, including the market for natural gas, crude 
oil, other hydrocarbons and water, the rates we can charge on our assets, how we contract for services, our existing 
contracts, our operating costs or our operating flexibility;

• 

the effect of worldwide energy conservation measures;

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• 

• 

• 

• 

• 

• 

• 

• 

• 

prevailing economic conditions;

the effect of seasonal variations in temperature and climate on the amount of customer products we are able to 
transport, store, process, gather, treat and dispose using our assets;

the realized pricing impacts on revenues and expenses that are directly related to commodity prices;

the level of competition from other midstream energy companies in our geographic markets;

the level of our operating and maintenance costs;

damage to our assets and surrounding properties caused by earthquakes, floods, fires, severe weather, explosions and 
other natural disasters or acts of terrorism;

outages in our assets;

the relationship between natural gas and NGL prices and resulting effect on processing margins; and

leaks or accidental releases of hazardous materials into the environment, whether as a result of human error or 
otherwise.

In addition, the actual amount of cash we will have available for dividend will depend on other factors, including:

• 

• 

• 

• 

• 

• 

• 

• 

• 

our ability to borrow funds and access capital markets;

the level, timing and characterization of capital expenditures we make;

the level of our general and administrative expenses, including reimbursements to our general partner and its affiliates, 
for services provided to us;

the cost of pursuing and completing acquisitions and capital expansion projects, if any;

our debt service requirements and other liabilities;

fluctuations in our working capital needs;

restrictions contained in our debt agreements;

the amount of cash reserves established by our general partner; and

other business risks affecting our cash levels.

If we are not able to renew or replace expiring customer contracts at favorable rates or on a long-term basis, our 

financial condition, results of operations, cash flows and ability to make quarterly cash dividends to our Class A 
shareholders will be adversely affected. 

A substantial majority of our contracts for transporting, storing, and processing our customers' products on our systems are 
long-term firm fee contracts with terms of various durations. For the year ended December 31, 2018, approximately 92% of our 
natural gas transportation and storage revenues were generated under firm fee transportation and storage contracts and 
approximately 87% of our crude oil transportation revenues were generated under firm fee transportation contracts. As of 
December 31, 2018, the weighted average remaining life of our long-term natural gas transportation contracts and natural gas 
storage contracts at TIGT and Trailblazer was approximately five years and four years, respectively, and the weighted average 
remaining life of our crude oil transportation contracts at Pony Express was approximately two years. In addition, a majority of 
Rockies Express' west-to-east pipeline capacity is subject to long-term firm fee contracts that expire in 2019 and a significant 
amount of Rockies Express' revenue in 2018 was derived under these contracts.

We may be unable to maintain the long-term nature and economic structure of our current contract portfolio over time. 

Depending on prevailing market conditions at the time of a contract renewal, our natural gas transportation, storage and 
processing customers with long-term fee-based contracts may desire to enter into contracts with reduced fees, and may be 
unwilling to enter into long-term contracts at all. In addition, a significant portion of the long-term contracts for the Pony 
Express Pipeline expire in 2019 and those customers may unilaterally decide whether to renew such contracts. If these contracts 
are not renewed, Pony Express' ability to enter into replacement long-term contracts would be limited. Under current FERC 
policy, Pony Express is generally prohibited from entering into new long-term contracts that grant contract shippers priorities in 
prorationing under the ICA unless such contract relates to an increase in the capacity of the Pony Express Pipeline. 

Our ability to renew or replace our expiring contracts on terms similar to, or more attractive than, those of our existing 

contracts is uncertain and depends on a number of factors beyond our control, including:

• 

• 

the level of existing and new competition to provide competing services to our markets;

the macroeconomic factors affecting crude oil and natural gas economics for our current and potential customers;

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• 

• 

• 

the balance of supply and demand for natural gas, crude oil and other hydrocarbons, on a short-term, seasonal and 
long-term basis, in the markets we directly and indirectly serve;

the extent to which the current and potential customers in our markets are willing to provide firm fee commitments on 
a long-term basis; and

the effects of federal, state or local laws or regulations on the contracting practices of our customers.

During periods of price reduction and high volatility in the commodity markets, we expect customers will generally be less 

likely to enter into long-term firm fee contracts, and even if they enter into such contracts, may only be willing to provide 
acreage dedications to our assets rather than firm fee commitments. Acreage dedications typically do not require our customers 
to pay us unless they utilize our assets, and they may also be subject to challenge in bankruptcy proceedings. 

To the extent we are unable to renew or replace our existing contracts on terms that are favorable to us or successfully 
manage the long-term nature and economic structure of our contract profile over time, our revenues and cash flows could 
decline and our ability to make quarterly cash dividends to our Class A shareholders could be materially and adversely affected.

We are exposed to the creditworthiness and performance of our customers, suppliers and contract counterparties, and 

any material nonpayment or nonperformance by one or more of these parties could adversely affect our financial condition, 
cash flows, and operating results.

Although we attempt to assess the creditworthiness of our customers, suppliers and contract counterparties, there can be no 

assurance that our assessments will be accurate or that there will not be a rapid or unanticipated deterioration in their 
creditworthiness, which may have an adverse impact on our business, results of operations, financial condition and ability to 
make quarterly cash dividends to our Class A shareholders. Our long-term firm fee contracts obligate our customers to pay 
demand charges regardless of whether they utilize our assets, except for certain circumstances outlined in applicable customer 
agreements. As a result, during the term of our long-term firm fee contracts and absent an event of force majeure, our revenues 
will generally depend on our customers' financial condition and their ability to pay rather than upon the extent to which our 
customers actually utilize our assets. Periods of price reduction and high volatility in the commodity markets could impact their 
ability to meet their financial obligations to us. Further, our contract counterparties may not perform or adhere to our existing or 
future contractual arrangements. To the extent one or more of our contract counterparties is in financial distress or commences 
bankruptcy proceedings, contracts with these counterparties may be subject to renegotiation or rejection under applicable 
provisions of the United States Bankruptcy Code. Any material nonpayment or nonperformance by our contract counterparties 
due to inability or unwillingness to perform or adhere to contractual arrangements could have a material adverse impact on our 
business, results of operations, financial condition and ability to make quarterly cash dividends to our Class A shareholders.

For example, in 2016, Ultra Resources, Inc., or Ultra, defaulted on its firm transportation service agreement with Rockies 

Express for approximately 0.2 Bcf/d through November 11, 2019, and as a result, Rockies Express filed a lawsuit seeking 
approximately $303 million in damages and other relief. Approximately 13% of Rockies Express' revenue in 2015 was derived 
from the Ultra contract. In April 2016, Ultra filed for bankruptcy protection and in January 2017, Rockies Express and Ultra 
agreed to settle Rockies Express' claim against Ultra's bankruptcy estate. In accordance with the settlement agreement, Ultra 
made a cash payment to Rockies Express of $150 million on July 12, 2017, and entered into a new, seven-year firm 
transportation agreement with Rockies Express commencing December 1, 2019, for west-to-east service of 0.2 Bcf/d at a rate 
of approximately $0.37, or approximately $26.8 million annually.

In addition, Triad Hunter, LLC, or Triad, sought bankruptcy relief in December 2015. At the time Triad commenced the 

bankruptcy proceedings, Triad and Rockies Express were parties to a precedent agreement that provided Triad with an 
approximate 0.1 Bcf/d of firm capacity in connection with the Rockies Express Zone 3 Capacity Enhancement Project. In order 
to settle its claim, Rockies Express agreed to amend certain material terms of the precedent agreement, including reducing 
Triad's firm capacity under the precedent agreement to an approximate 0.05 Bcf/d. 

Although the Triad and Ultra claims were ultimately settled, and on terms we view as favorable, future bankruptcy 

proceedings with a counterparty may not result in a favorable settlement for us.

The procedures and policies we use to manage our exposure to credit risk, such as credit analysis, credit monitoring and, in 
some cases, requiring credit support, cannot fully eliminate counterparty credit risks. In accordance with FERC regulations and 
our own internal credit policies, counterparties with investment grade credit ratings are deemed able to meet their financial 
obligations to us without requiring credit support in the form of a letter of credit or prepayment. Although we generally ask for 
credit support from customers we deem to not be creditworthy or upon a deterioration of the financial condition of an existing 
customer, some customers may be unwilling or unable to provide it due to liquidity constraints. To the extent our procedures 
and policies prove to be inadequate or we are unable to obtain credit support, our financial position and results of operations 
may be negatively impacted.

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Some of our counterparties may be highly leveraged or have limited financial resources and are subject to their own 
operating and regulatory risks. Even if our credit review and analysis mechanisms work properly, we may experience financial 
losses in our dealings with such parties. As seen with the decline and volatility in crude oil prices from the second half of 2014 
through the first half of 2016 and in the second half of 2018, prices for crude oil and natural gas are subject to large fluctuations 
in response to changes in supply and demand, market uncertainty and a variety of other factors that are beyond our control. 
Such volatility in commodity prices might have an impact on many of our counterparties and their ability to borrow and obtain 
additional capital on attractive terms, which, in turn, could have a negative impact on their ability to meet their obligations to 
us. 

Any material nonpayment or nonperformance by our counterparties could require us to pursue substitute counterparties for 
the affected operations, reduce operations or provide alternative services. There can be no assurance that any such efforts would 
be successful or would provide similar financial and operational results.

We depend on certain key customers for a significant portion of our revenues and are exposed to credit risks of these 
customers. The loss of or material nonpayment or nonperformance by any of these key customers could adversely affect our 
cash flow and results of operations.

We rely on certain key customers for a portion of revenues. For example, for the year ended December 31, 2018, 
Continental Resources accounted for approximately 10% of our revenues on a consolidated basis. In addition, for the year 
ended December 31, 2018, approximately 47% of our consolidated revenues were represented by the top ten customers on our 
Pony Express System. We own a 75% membership interest in Rockies Express, which is not consolidated for financial 
reporting purposes. Approximately 18%, 13%, and 12%, respectively, of Rockies Express' total revenues for the year ended 
December 31, 2018 were represented by Rockies Express' three largest non-affiliated shippers.

We may be unable to negotiate extensions or replacements of contracts with key customers on favorable terms. For 

additional detail, see "—If we are not able to renew or replace expiring customer contracts at favorable rates or on a long-term 
basis, our financial condition, results of operations, cash flows and ability to make quarterly cash dividends to our Class A 
shareholders will be adversely affected."

 In addition, some of these key customers may experience financial problems that could have a significant effect on their 
creditworthiness. For example, Rockies Express terminated its contract with its third largest non-affiliated shipper by total 2015 
revenue, Ultra, in March 2016. For more detail regarding Ultra, see "—We are exposed to the creditworthiness and 
performance of our customers, suppliers and contract counterparties, and any material nonpayment or nonperformance by one 
or more of these parties could adversely affect our financial condition, cash flows, and operating results." 

Severe financial problems encountered by our customers could limit our ability to collect amounts owed to us, or to 
enforce performance of obligations under contractual arrangements. To the extent one or more of our key customers is in 
financial distress or commences bankruptcy proceedings, contracts with these customers may be subject to renegotiation or 
rejection under applicable provisions of the United States Bankruptcy Code. Additionally, many of our customers finance their 
activities through cash flow from operations, the incurrence of indebtedness or the issuance of equity. The combination of 
reduction of cash flow resulting from declines in commodity prices, a reduction in borrowing bases under credit facilities and 
the lack of availability of debt or equity financing may result in a significant reduction of our customers' liquidity and limit 
their ability to make payments or perform on their obligations to us. Furthermore, some of our customers may be highly 
leveraged and subject to their own operating and regulatory risks, which increases the risk that they may default on their 
obligations to us. The loss of all or even a portion of the contracted volumes of these key customers, as a result of competition, 
creditworthiness or otherwise, could have a material adverse effect on our business, cash flows, ability to make quarterly cash 
dividends to our Class A shareholders, the price of our Class A shares, our results of operations and ability to conduct our 
business.

If we are unable to make acquisitions on economically acceptable terms, our future growth will be limited, and the 

acquisitions we do make may reduce, rather than increase, our cash generated from operations on a per share basis.

Our ability to grow depends, in part, on our ability to make acquisitions that increase our cash generated from operations 

on a per share basis. 

The acquisition component of our strategy is based, in part, on our expectation of ongoing divestitures of midstream energy 

assets by industry participants. Many factors could impair our access to future midstream assets. A material decrease in 
divestitures of midstream energy assets by industry participants would limit our opportunities for future acquisitions and could 
have a material adverse effect on our business, results of operations, financial condition and ability to make quarterly cash 
dividends to our Class A shareholders. Prior to February 7, 2018, Tallgrass Development was our primary source of 
acquisitions. Now that Tallgrass Development has divested its entire asset portfolio and merged out of existence, our growth 
through acquisitions will rely almost exclusively on buying assets or businesses from third parties.

24

Our future growth and ability to maintain or increase dividends will be limited if we are unable to make accretive 

acquisitions because, among other reasons, (i) we are unable to identify attractive acquisition opportunities, (ii) we are unable 
to negotiate acceptable purchase contracts, (iii) we are unable to obtain financing for these acquisitions on economically 
acceptable terms, (iv) we are outbid by competitors or (v) we are unable to obtain necessary governmental or third-party 
consents. Furthermore, even if we do make acquisitions that we believe will be accretive, these acquisitions may nevertheless 
result in a decrease in the cash generated from operations on a per share basis. For example, we completed a number of 
acquisitions in 2018, including the acquisition of an additional 25.01% membership interest in Rockies Express from Tallgrass 
Development, a 100% membership interest in NGL Water Solutions Bakken, LLC from NGL Energy Partners, a 51% 
membership interest in Pawnee Terminal from Zenith Energy, and a 38% membership interest in Deeprock North from Kinder 
Morgan. If certain risks or unanticipated liabilities were to arise, the desired benefits of these acquisition may not be fully 
realized and our future financial performance and results of operations could be negatively impacted.

Any acquisition involves potential risks, including, among other things:

•  mistaken assumptions about volumes, revenue and costs, including synergies and potential growth;

• 

• 

• 

• 

• 

• 

an inability to maintain or secure adequate customer commitments to use the acquired systems or facilities;

an inability to successfully integrate the assets or businesses we acquire;

the assumption of unknown liabilities for which we are not indemnified or for which its indemnity is inadequate;

the diversion of management's and employees' attention from other business concerns;

unforeseen difficulties operating in new geographic areas or business lines; and

a decrease in liquidity and increased leverage as a result of using significant amounts of available cash or debt to 
finance an acquisition.

If any acquisition eventually proves not to be accretive to our cash available for dividend per share, it could have a material 

adverse effect on our business, results of operations, financial condition and ability to make quarterly cash dividends to our 
Class A shareholders. 

Constructing new assets subjects us to risks of project delays, cost overruns and lower-than-anticipated volumes of 

natural gas or crude oil once a project is completed. Our operating cash flows from our capital projects may not be 
immediate or meet our expectations.

One of the ways we may grow our business is by constructing additions or modifications to our existing facilities. We also 

may construct new facilities, either near our existing operations or in new areas. Construction projects require significant 
amounts of capital and involve numerous regulatory, environmental, political, legal and operational uncertainties, many of 
which are beyond our control. We may be unable to complete announced construction projects on schedule, at the budgeted 
cost, or at all, which could have a material adverse effect on our business and results of operations. For example, in June 2014, 
Michels Corporation, or Michels, filed a complaint and request for relief against Rockies Express as a result of work performed 
by Michels to construct the Seneca Lateral Pipeline in Ohio. Michels sought unspecified damages from Rockies Express and 
asserted claims of breach of contract, negligent misrepresentation, unjust enrichment and quantum meruit, and also filed notices 
of Mechanic's Liens in Monroe and Noble Counties, asserting $24.2 million as the amount due. In February 2017, Rockies 
Express and Michels resolved the claims brought by Michels in exchange for a $10 million cash payment by Rockies Express.

Although we evaluate and monitor each capital spending project and try to anticipate difficulties that may arise, such delays 

or cost increases may arise as a result of factors that are beyond our control, including:

• 

• 

• 

• 

• 

• 

denial or delay in issuing requisite regulatory approvals and/or permits, which for many of our projects includes a 
requirement to obtain a certificate from the FERC authorizing the project before construction can commence; 

unplanned increases in the cost of construction materials or labor;

disruptions in transportation of modular components and/or construction materials;

severe adverse weather conditions, natural disasters, or other events (such as equipment malfunctions, explosions, fires, 
releases) affecting our facilities, or those of vendors and suppliers;

shortages of sufficiently skilled labor, or labor disagreements resulting in unplanned work stoppages;

changes in market conditions impacting long lead-time projects;

•  market-related increases in a project's debt or equity financing costs; and

• 

nonperformance by, or disputes with, vendors, suppliers, contractors, or sub-contractors involved with a project.

25

These projects also involve numerous economic uncertainties and the cash flow generated from these projects may not 
meet expectations or project estimates. Moreover, we may not receive any material increase in operating cash flow from a 
project for some time or at all. For instance, we incurred construction expenditures in 2018 for the construction of the Iron 
Horse Pipeline and the Cheyenne Connector Pipeline. However, we will not receive any increases in cash flow from these 
projects until such project is completed and placed in-service. 

The project specifications and expectations regarding project cost, timing, asset performance, investment returns and other 

matters usually rely in part on the expertise of third parties such as engineers, technical experts and construction contractors. 
These estimates may prove to be inaccurate because of numerous operational, technological, economic and other uncertainties. 
We also rely in part on estimates from producers regarding the timing and volume of anticipated natural gas and crude oil 
production. Production estimates are subject to numerous uncertainties, nearly all of which are beyond our control. These 
estimates may prove to be inaccurate, and new facilities may not attract sufficient volumes to achieve our expected cash flow 
and investment return.

If we are unable to obtain needed capital or financing on satisfactory terms to fund expansions of our asset base, our 

ability to make quarterly cash dividends may be diminished or our financial leverage could increase.

In order to expand our asset base through acquisitions or capital projects, we may need to make expansion capital 
expenditures. If we do not make sufficient or effective expansion capital expenditures, we will be unable to expand our 
business operations and may be unable to maintain or raise the level of our quarterly cash dividends. We could be required to 
use cash from our operations or incur borrowings or sell additional Class A shares or other limited partner interests in order to 
fund our expansion capital expenditures. Using cash from operations will reduce cash available for dividends to our Class A 
shareholders. Our ability to obtain bank financing or to access the capital markets for future equity or debt offerings may be 
limited by our financial condition at the time of any such financing or offering as well as the covenants in our debt agreements, 
general economic conditions and contingencies and uncertainties that are beyond our control. Even if we are successful in 
obtaining funds for expansion capital expenditures through equity or debt financings, the terms thereof could limit our ability to 
pay quarterly cash dividends to our Class A shareholders. In addition, incurring additional debt may significantly increase our 
interest expense and financial leverage, and issuing additional limited partner interests may result in significant dilution of 
Class A shareholders and increase the aggregate amount of cash required to maintain the then-current dividend rate, which 
could materially decrease our ability to pay quarterly cash dividends at the then-current dividend rate. We do not currently have 
any commitment with our general partner or other affiliates, including Tallgrass Energy Holdings, for them to provide any 
direct or indirect financial assistance to us.

The Throughput and Deficiency Agreements for the Pony Express System and some of our service agreements with 
respect to our water business services contain provisions that can reduce the cash flow stability that the agreements were 
designed to achieve.

The Throughput and Deficiency Agreements, or TDAs, for the Pony Express System and some of our service agreements 

with respect to our water services business are firm fee contracts with minimum volume commitments that are designed to 
generate stable cash flows and minimize direct commodity price risk. Under these minimum volume commitments, our 
customers agree to ship a minimum volume of crude oil or to have a minimum volume of water serviced, as the case may be, 
over certain periods during the term of the applicable agreement. 

If a customer's actual throughput volumes or volumes serviced are less than its minimum volume commitment for the 
applicable period, it must make a deficiency payment at the end of the applicable period based upon the difference between the 
minimum volume commitment and the actual amounts serviced. A customer may apply any deficiency payments it makes as a 
credit against payment for volumes transported or serviced by us in excess of its minimum volume commitment in future 
periods. Upon termination of the Pony Express TDAs, customers may continue to use any remaining deficiency credits against 
any volumes serviced by us for a period of six months following termination, even though such customers may no longer have 
a minimum volume commitment. 

To the extent that a customer's actual throughput volumes or volumes serviced are above its minimum volume commitment 

for the applicable period, the customer may use the excess volumes to credit against future deficiency payments in subsequent 
periods. As of December 31, 2018, Pony Express had a cumulative net deficiency balance of $97.1 million and a cumulative 
shipper incremental balance of $4.9 million. 

Some or all of these provisions can apply in combination with one another. As a result, in the future we may not receive 
any cash payments for volumes shipped or serviced by us, and we may not receive deficiency payments as a result of excess 
volumes shipped in prior periods. This would result in reduced revenue and cash flows to us and could have a material adverse 
effect on our ability to make quarterly cash dividends to our Class A shareholders. 

26

We may not be able to compete effectively in our midstream services activities and our business is subject to the risk of a 

capacity overbuild of midstream energy infrastructure in the areas where we operate.

We face competition in all aspects of our business and may not be able to compete effectively against our competitors. In 

general, competition comes from a wide variety of players in a wide variety of contexts, including new entrants and existing 
players and in connection with day-to-day business, expansion capital projects, acquisitions and joint venture activities. Some 
of our competitors have capital resources greater than ours and control greater supplies of crude oil, natural gas or NGLs.

Our ability to renew or replace our existing contracts at rates sufficient to maintain current revenues and current cash flows 

could be adversely affected by the activities of our competitors. Some of our competitors have assets in closer proximity to 
certain hydrocarbon supplies and have available idle capacity in existing assets that may require no or minimal capital 
investments for use. For example, several pipelines access many of the same basins as our assets and provide transport to 
customers in the Rocky Mountain, Appalachian Mountain and Midwest regions of the United States, such as the Dakota Access 
Pipeline, Saddlehorn-Grand Mesa Pipeline and White Cliffs Pipeline that compete with the Pony Express Pipeline. Pony 
Express also competes with rail facilities, which can provide more delivery optionality to crude oil producers and marketers 
looking to capitalize on basis differentials between two primary crude oil benchmarks (West Texas Intermediate Crude and 
Brent Crude). Furthermore, Tallgrass Energy Holdings and its affiliates are not limited in their ability to compete with us.

Our competitors may expand or construct new midstream services assets that would create additional competition for the 

services we provide to our customers, or our customers may develop their own facilities in lieu of using ours. A significant 
driver of competition in some of the markets where we operate (including, for example, the Rocky Mountain and Appalachian 
Mountain regions) has been the rapid development of new midstream energy infrastructure capacity in recent years. As a result, 
we are exposed to the risk that the areas in which we operate become overbuilt, resulting in an excess of midstream energy 
infrastructure capacity. If we experience a significant capacity overbuild in one or more of the areas where we operate, it could 
have a significant adverse impact on our financial position, cash flows and ability to maintain or increase dividends to our Class 
A shareholders. For example, our competitors in these areas could substantially decrease the prices at which they offer their 
services, and we may be unable to compete effectively. This could materially impair our cash flows and ability to make 
quarterly cash dividends to our Class A shareholders.

Further, natural gas as a fuel, and fuels derived from crude oil, compete with other forms of energy available to users, 
including electricity, coal, other fuels and alternative energy. Increased demand for such forms of energy at the expense of 
natural gas or fuels derived from crude oil could lead to a reduction in demand for our services.

All of these competitive pressures could make it more difficult for us to renew our existing long-term firm fee contracts 
when they expire or to attract new customers as we seek to expand our business, which could have a material adverse effect on 
our business, financial condition, results of operations and prospects. In addition, competition could intensify the negative 
impact of factors that decrease demand for natural gas and crude oil in the markets we serve, such as adverse economic 
conditions, weather, higher fuel costs and taxes or other governmental or regulatory actions decreasing demand.

We have certain long-term fixed priced natural gas and crude oil transportation contracts that cannot be adjusted even 

if our costs increase. As a result, our costs could exceed our revenues.

As of December 31, 2018, approximately 53% of our contracted natural gas transportation firm capacity was provided 

under long-term, fixed price "negotiated or discount rate" contracts that are not subject to adjustment, even if our cost to 
perform such services exceeds the revenues received from such contracts, and, as a result, our costs could exceed our revenues 
received under such contracts. It is possible that costs to perform services under our "negotiated or discount rate" contracts will 
exceed the negotiated or discounted rates. It is also possible with respect to discounted rates that if our filed "recourse rates" 
should ever be reduced below applicable discounted rates, we would only be allowed by the FERC to charge the lower recourse 
rates, since FERC policy does not allow discount rates to be charged to the extent that they exceed applicable recourse rates. If 
these events were to occur, it could decrease the cash flow realized by our assets and, therefore, the cash we have available for 
dividends to our Class A shareholders.

Under FERC policy, a regulated service provider and a customer may mutually agree to sign a contract for service at a 
"negotiated rate," which is generally fixed between the natural gas pipeline and the shipper for the contract term and does not 
necessarily vary with changes in the level of cost-based "recourse rates," provided that the affected customer is willing to agree 
to such rates and that the FERC has accepted the negotiated rate agreement. These "negotiated or discount rate" contracts are 
not generally subject to adjustment for increased costs which could be caused by inflation or other factors relating to the 
specific facilities being used to perform the services. Any shortfall of revenue, representing the difference between "recourse 
rates" (if higher) and negotiated or discounted rates, under current FERC policy, may be recoverable from other shippers in 
certain circumstances. For example, the FERC may recognize this shortfall in the determination of prospective rates in a future 
rate case. However, if the FERC were to disallow the recovery of such costs from other customers, it could decrease the cash 
flow realized by our assets and, therefore, the cash we have available for dividends to our Class A shareholders.

27

Rates under Pony Express' TDAs are typically subject to change only per contract terms and conditions, including Pony 

Express' right to file changes to contract rates to reflect annual index percentage adjustments published by the FERC. We 
generally cannot file for rate increases with respect to committed shippers who have signed TDAs, other than to reflect annual 
index adjustments or to recover compliance costs imposed by governmental actions.

A significant amount of the revenue currently generated by the Pony Express System and the Rockies Express Pipeline 

are from contracts that contain most favored nations rights, limiting flexibility to offer certain capacity to new shippers.

Approximately 93% of the Pony Express System's current available contractible capacity is provided to committed 

shippers under long-term TDAs. Some of the TDAs contain most favored nations rights, or MFNs, which could result in lower 
rates being charged to certain committed shippers to ensure that the rates such shippers are paying are no greater than ninety to 
one hundred percent of the rates being charged to other similarly situated shippers for similar service at similar volumes and 
terms. Triggering the MFNs on the TDAs could lead to a reduction in revenue generated by Pony Express, which could have a 
material adverse effect on our revenues, cash flow, results of operations, and our ability to make quarterly cash dividends to our 
Class A shareholders.

Rockies Express' foundation and anchor shippers for west-to-east service hold certain MFNs granting them a right to a rate 
reduction in certain instances where Rockies Express provides service to another shipper at a rate lower than the foundation or 
anchor shipper rate for a term of one year or greater or, in the case of the foundation shipper, from certain specified receipt 
locations. The MFNs effectively limit Rockies Express' flexibility in negotiating rates for some of its services with other 
shippers, because triggering the MFNs of the foundation and anchor shippers could lead to a reduction in the rates that Rockies 
Express charges, which could have a material adverse effect on Rockies Express' revenues, cash flow and results of operations, 
which in turn could impair Rockies Express' ability to make distributions to its equity holders and our ability to make quarterly 
cash dividends to our Class A shareholders. 

If third-party pipelines or other facilities interconnected to our systems become partially or fully unavailable, if the 
volumes we transport do not meet the quality requirements of such pipelines or facilities, or if claims are made against us 
for events that occur downstream of our interconnection with third-party facilities, our revenues and our ability to make 
quarterly cash dividends to our Class A shareholders could be adversely affected.

Our assets typically connect to other pipelines or facilities owned, leased and/or operated by unaffiliated third parties, such 

as ONEOK Bakken Pipeline, L.L.C., Whiting Petroleum, and others. For example, our Pony Express System connects to 
upstream joint tariff pipelines, including the Belle Fourche Pipeline owned by the True Companies (which also own and operate 
the Bridger Pipeline upstream of the Belle Fourche Pipeline) and the Double H Pipeline owned by Kinder Morgan, which are 
responsible for delivering a substantial portion of the crude oil for transportation on the Pony Express System. In addition, part 
of the crude oil we transport on the Pony Express System is either stored in crude oil tanks located on, or pumped over to 
downstream pipelines that interconnect through, the Cushing Terminal, which we do not operate. 

The continuing operation of such third-party facilities and other midstream facilities is not within our control. These 
pipelines, plants and other midstream facilities may become unavailable to us for any number of reasons, including because of 
testing, turnarounds, line repair, extended unscheduled maintenance, reduced operating pressure, lack of operating capacity, 
regulatory requirements, conversion to another form of commodity transportation service, cessation of operations, curtailments 
of receipt or deliveries due to insufficient capacity or because of damage from weather events or other operational hazards. For 
example, the operations of the Bridger Pipeline's Poplar System were down for approximately five months during the first half 
of 2015 due to a pipeline release. Bridger declared a force majeure as a result of this event and temporarily lacked the capacity 
to make up volumes on other lines that directly or indirectly deliver crude oil into designated origin points on the Pony Express 
System or the Belle Fourche Pipeline. The largest committed shipper on the Pony Express System also declared a force majeure 
as a result of this incident. 

In addition, our interconnection with third-party facilities may result in claims being made against us for events that occur 

downstream of our pipelines. For example, TIGT has been named as a defendant in a lawsuit for damages arising from a gas 
leak and home explosion that occurred in June 2014 in Finney County, Kansas. Although TIGT did not directly distribute 
natural gas to the home in question, the plaintiffs nonetheless allege that TIGT committed torts and otherwise violated federal 
safety laws. TIGT believes the claims are without merit and intends to vigorously defend them. 

If the costs to us to access and transport on these third-party pipelines or any alternative pipelines significantly increase, if 

any of these pipelines or other midstream facilities become unable to receive, transport, store or process products from our 
assets, if the volumes we transport or process do not meet the quality requirements of such pipelines or facilities, or if claims 
are made against us for events that occur downstream of our interconnection with third-party facilities, our revenues and our 
ability to make quarterly cash dividends to our Class A shareholders could be adversely affected.

28

The lack of diversification of our assets and geographic locations could adversely affect our ability to make quarterly 

cash dividends to our Class A shareholders. 

We rely on revenues generated from our assets, which are primarily located in the Rocky Mountain, Appalachian Mountain 
and Midwest regions of the United States. Revenues on our assets primarily depend on exploration and production activities of 
our customers located in these regions. Due to our lack of diversification in assets and geographic location, an adverse 
development in these businesses or our customers' areas of operations, including adverse developments due to catastrophic 
events, weather, regulatory action and decreases in supply or demand for hydrocarbons, could have a significantly greater 
impact on our results of operations and cash available for dividends to our Class A shareholders than if we maintained more 
diverse assets and locations. For example, our water business services are provided through a limited number of assets with a 
relatively high concentration in Weld County, Colorado. Thus, the growth and profitability of our water business services will 
be especially vulnerable to conditions and fluctuations in the local Weld County economy and subject to changes in local 
government regulations and priorities. In addition, a number of our other assets are also located in Colorado. Certain interest 
groups in Colorado generally opposed to the development of oil, natural gas and NGLs, and hydraulic fracturing in particular, 
have from time to time advanced various options for ballot initiatives aimed at significantly limiting or preventing the 
development of oil, natural gas and NGLs. For example, a Colorado ballot initiative, Proposition 112, would have substantially 
increased setback distances for various upstream activities, thereby substantially restricting new oil and gas development in the 
state.  Although Proposition 112 was defeated in the November 2018 elections, similar efforts in Colorado, if passed, could 
restrict oil and gas development in the future which could result in a reduction in demand for our services. 

Our operations are dependent on our rights and ability to receive or renew the required permits and other approvals 

from governmental authorities and other third parties.

Performance of our operations requires that we obtain and maintain numerous environmental and land use permits and 
other approvals authorizing our business activities. A decision by a governmental authority or other third party to deny, delay or 
restrictively condition the issuance of a new or renewed permit or other approval, or to revoke or substantially modify an 
existing permit or other approval, could have a material adverse effect on our ability to initiate or continue operations at the 
affected location or facility. Expansion of our existing operations and construction of new assets are both also predicated on 
securing the necessary environmental or land use permits and other approvals, which we may not receive in a timely manner or 
at all.

In order to obtain permits and renewals of permits and other approvals in the future, we may be required to prepare and 
present data to governmental authorities pertaining to the potential adverse impact that any proposed activities may have on the 
environment, individually or in the aggregate, including on public and Indian lands. Certain approval procedures may require 
preparation of archaeological surveys, endangered species studies and other studies to assess the environmental impact of new 
sites or the expansion of existing sites. Compliance with these regulatory requirements is expensive and significantly lengthens 
the time needed to develop a site or pipeline alignment. Also, obtaining or renewing required permits or other approvals is 
sometimes delayed or prevented due to community opposition and other factors beyond our control. The denial of a permit or 
other approval essential to our operations or the imposition of restrictive conditions with which it is not practicable or feasible 
to comply could impair or prevent our ability to develop or expand a property or right-of-way. Significant opposition to a 
permit or other approval by neighboring property owners, members of the public or non-governmental organizations, or other 
third parties or delay in the environmental review and permitting process also could impair or delay our ability to develop or 
expand a property or right-of-way. New legal requirements, including those related to the protection of the environment, could 
be adopted at the federal, state and local levels that could materially adversely affect our operations, our cost structure or our 
customers' ability to use our services. Such current or future regulations could have a material adverse effect on our business 
and we may not be able to obtain or renew permits or other approvals in the future.

Difficult conditions in the global capital markets, the credit markets and the economy in general could negatively affect 

our business and results of operations.

Our business may be negatively impacted by adverse economic conditions or future disruptions in the global financial 
markets. Included among these potential negative impacts are reduced energy demand and lower prices for our services and 
increased difficulty in collecting amounts owed to us by our customers which could reduce our access to credit markets, raise 
the cost of such access or require us to provide additional collateral to our counterparties. Our ability to access available 
capacity under the TEP revolving credit facility could be impaired if one or more of our lenders fails to honor its contractual 
obligation to lend to us. If financing is not available when needed, or is available only on unfavorable terms, we may be unable 
to implement our business plans or otherwise take advantage of business opportunities or respond to competitive pressures. 

29

The amount of cash we have available for dividend to Class A shareholders depends primarily on our cash flow rather 
than on our profitability, which may prevent us from making dividends, even during periods in which we record net income.

The amount of cash we have available for dividends depends primarily upon our cash flow and not solely on profitability, 
which will be affected by non-cash items. As a result, we may make cash dividends during periods when we record losses for 
financial accounting purposes and may not make cash dividends during periods when we record net earnings for financial 
accounting purposes.

The revenue in our Gathering, Processing & Terminalling segment largely depends on the amount of natural gas that 

our customers actually deliver to our natural gas processing plants.

During the year ended December 31, 2018, approximately 12%, 51%, and 37% of TMID's Adjusted EBITDA came from 

firm fee, volumetric fee, and commodity sensitive contracts, respectively. On these volumetric fee contracts, our revenue is 
largely tied to the amount of natural gas that our customers actually deliver to our Casper and Douglas plants for processing. 
Unlike many pipeline transportation customers, our natural gas processing customers are not generally subject to "take or pay" 
obligations. Thus, if our natural gas processing customers do not produce natural gas and deliver that natural gas to our 
processing plants to be processed, revenue for our Gathering, Processing & Terminalling segment will decline. As natural gas, 
crude oil or NGL prices decline, our customers will likely make less money from the production of natural gas, crude oil or 
NGLs than it costs them to produce it. If that happens, our customers may not continue to produce natural gas and our revenue 
will decline. The decreased commodity prices in late 2014 through 2016 contributed to a significant drop in actual volumes 
from several producers from which TMID receives natural gas for processing. If processing volumes at TMID do not continue 
recovering over time, we could have an impairment of the goodwill at the TMID reporting unit, which is a component of our 
Gathering, Processing & Terminalling segment, and our revenue will decline. In addition, the fees our customers pay to reserve 
capacity at our processing plants may not deter those customers from processing their natural gas volumes at other facilities, 
with whom they may have had prior arrangements or otherwise. 

We are exposed to direct commodity price risk with respect to some of our processing revenues and the utilization of 

commodity derivatives by Stanchion, and our exposure to direct commodity price risk may increase in the future.

Our Gathering, Processing & Terminalling segment operates under three types of contracts, two of which directly expose 

our cash flows to increases and decreases in the price of natural gas and NGLs: percent of proceeds and keep whole processing 
contracts. We do not currently hedge the commodity exposure inherent in these types of processing contracts, and as a result, 
our revenues and results of operations are impacted by fluctuations in the prices of natural gas and NGLs.

Percent of proceeds processing contracts generally provide upside in high commodity price environments, but result in 
lower margins in low commodity price environments. Under keep whole processing contracts, our revenues and our cash flows 
generally increase or decrease as the prices of natural gas and NGLs fluctuate. The relationship between natural gas prices and 
NGL prices may also affect our profitability. When natural gas prices are low relative to NGL prices, it is more profitable for us 
to process natural gas under keep whole arrangements. When natural gas prices are high relative to NGL prices, it is less 
profitable for us and our customers to process natural gas both because of the higher value of natural gas and the increased cost 
(principally that of natural gas as a feedstock and a fuel) of separating the mixed NGLs from the natural gas. As a result, we 
may experience periods in which higher natural gas prices relative to NGL prices reduce our processing margins or reduce the 
volume of natural gas processed at some of our plants. In addition, NGL prices have historically been related to the market 
price of oil and as a result any significant changes in oil prices could also indirectly impact our operations. Indirectly, reduced 
commodity prices impact us through reduced exploration and production activity, which results in fewer opportunities for new 
business to offset natural volume declines. NGL and natural gas prices are volatile and are impacted by changes in the supply 
and demand for NGLs and natural gas, as well as market uncertainty. For example, from the second half of 2014 through the 
first half of 2016, natural gas and crude oil prices declined substantially and these declines directly and indirectly resulted in 
lower processing volumes and realizations on our percent of proceeds and keep whole processing contracts.

In 2017, we also began utilizing commodity derivatives in connection with the operations of our crude oil marketing 

subsidiary, Stanchion. Our portfolio of derivative and other energy contracts may consist of contracts to buy and sell 
commodities that are settled by the delivery of the commodity or cash. If the values of these contracts change in a direction or 
manner that we do not anticipate or cannot manage, it could negatively affect our results of operations. If a performance failure 
were to occur in one of our contracts, we might incur losses in addition to amounts, if any, already recognized in our financial 
statements or paid to, or received from, counterparties. As a result, our business, results of operations, financial condition and 
ability to pay quarterly cash dividends to our Class A shareholders may be adversely affected.

30

Our success depends on the supply and demand for natural gas and crude oil.

The success of our business is in many ways impacted by the supply and demand for natural gas and crude oil. For 
example, our business can be negatively impacted by sustained downturns in supply and demand for natural gas and crude oil 
in the markets that we and our customers serve, including reductions in our ability to renew contracts on favorable terms and to 
construct new infrastructure. Further, a portion of the demand for our water business services depends substantially on the level 
of expenditures by the oil and gas industry for the exploration, development and production of oil and natural gas reserves. 
These expenditures are generally dependent on the industry's view of future oil and natural gas prices and are sensitive to the 
industry's view of future economic growth and the resulting impact on demand for oil and natural gas. Declines, as well as 
anticipated declines, in oil and gas prices could also result in project modifications, delays or cancellations, general business 
disruptions, and delays in, or nonpayment of, amounts that are owed to us. These effects could have a material adverse effect on 
our financial condition, results of operations and cash flows.

One of the major factors that will impact natural gas demand will be the potential growth of the demand for natural gas in 
the power generation market, particularly driven by the speed and level of existing coal-fired power generation that is replaced 
with natural gas-fired power generation rather than alternative energy sources. One of the major factors impacting domestic 
natural gas and crude oil supplies has been the significant growth in unconventional sources such as shale plays and the 
continued progression of hydraulic fracturing technology. The supply and demand for natural gas and crude oil, and therefore 
the future rate of growth of our business, depends on these and many other factors outside of our control, including, but not 
limited to:

• 

• 

• 

• 

• 

• 

• 

• 

adverse changes in general global economic conditions;

adverse changes in domestic laws and regulations;

technological advancements that may drive further increases in production and reduction in costs of developing crude 
oil and natural gas shale plays;

the price and availability of other forms of energy, including alternative energy which may benefit from government 
subsidies;

adoption of various energy efficiency and conservation measures;

prices for natural gas, crude oil and NGLs;

decisions of the members of the Organization of the Petroleum Exporting Countries, or OPEC, regarding price and 
production controls;

increased costs to explore for, develop, produce, gather, process and transport natural gas or crude oil;

•  weather conditions, seasonal trends and hurricane disruptions;

• 

• 

• 

• 

the nature and extent of, and changes in, governmental regulation, for example GHG legislation, taxation and 
hydraulic fracturing; 

perceptions of customers on the availability and price volatility of our services and natural gas and crude oil prices, 
particularly customers' perceptions on the volatility of natural gas and crude oil prices over the long-term; 

capacity and transportation service into, or out of, our markets; and

petrochemical demand for NGLs.

The oil and gas industry historically has experienced periodic downturns. For example, from the second half of 2014 
through the first half of 2016, the oil and gas industry experienced a sustained period of decline and volatility in natural gas and 
crude oil prices. Any prolonged downturns in the oil and gas industry could result in a reduction in demand for our services and 
could adversely affect our financial condition, results of operations and cash flows.

Any significant decrease in available supplies of hydrocarbons in our areas of operation, or redirection of existing 
hydrocarbon supplies to other markets, could adversely affect our business and operating results. Persistent low commodity 
prices could result in lower throughput volumes and reduced cash flows.

Our business is dependent on the continued availability of natural gas and crude oil production and reserves. Production 
from existing wells and natural gas and crude oil supply basins with access to our assets will naturally decline over time. The 
amount of natural gas and crude oil reserves underlying these wells may also be less than anticipated, and the rate at which 
production from these reserves declines may be greater than anticipated. Accordingly, to maintain or increase the contracted 
capacity and/or the volume of products utilizing our assets, our customers must continually obtain adequate supplies of natural 
gas and crude oil.

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However, the development of additional natural gas and crude oil reserves requires significant capital expenditures by 

others for exploration and development drilling and the installation of production, storage, transportation and other facilities 
that permit natural gas and crude oil to be produced and products delivered to our facilities. In addition, low prices for natural 
gas and crude oil, regulatory limitations, including environmental regulations, or the lack of available capital for these projects 
could have a material adverse effect on the development and production of additional reserves, as well as storage, pipeline 
transportation, and import and export of natural gas and crude oil supplies. The volatility and sustained lower prices for crude 
oil and refined products from the second half of 2014 through the first half of 2016 led to a decline in drilling activity, 
production and refining of crude oil, and import levels in these areas. For example, in response to this volatility and lower 
prices, a number of producers in our areas of operation significantly reduced their capital budgets and drilling plans in 2015 
through 2017. Although producers in areas we serve increased their production in 2018 and are expected to continue this 
increase in 2019, it may take a prolonged period before the increased production has the possibility of resulting in increased 
utilization of our assets. In addition, production may fluctuate for other reasons, including, for example, in the case of crude oil, 
the extent to which the members of OPEC abide by agreements regarding production controls. Furthermore, competition for 
natural gas and crude oil supplies to serve other markets could reduce the amount of natural gas and crude oil supply available 
for our customers. Accordingly, to maintain or increase the contracted capacity and/or the volume of products utilizing our 
assets, our customers must compete with others to obtain adequate supplies of natural gas and crude oil.

If new supplies of natural gas and crude oil are not obtained to replace the natural decline in volumes from existing supply 
basins, if natural gas and crude oil supplies are diverted to serve other markets, if environmental regulations restrict new natural 
gas and crude oil drilling or if OPEC does not maintain production controls, the overall demand for services on our systems 
will likely decline, which could have a material adverse effect on our ability to renew or replace our current customer contracts 
when they expire and on our business, financial condition, results of operations and ability to make quarterly cash dividends to 
our Class A shareholders. 

Our natural gas, crude oil and liquids operations are subject to extensive regulation by federal, state and local 
regulatory authorities, which could have a material adverse effect on our business, financial condition, and results of 
operations.

We provide open-access interstate transportation service on our interstate natural gas transportation systems pursuant to 
tariffs approved by the FERC. Our interstate natural gas transportation and storage operations are regulated by the FERC, under 
the NGA, the NGPA, and the EPAct 2005. The Rockies Express Pipeline, the TIGT System and the Trailblazer Pipeline each 
operate under a tariff approved by the FERC that establishes rates and terms and conditions of service to our customers. The 
rates and terms of service on the Pony Express System and PRE Pipeline are subject to regulation by the FERC under the ICA, 
and the Energy Policy Act of 1992. We provide interstate crude oil transportation service on the Pony Express System and PRE 
Pipeline pursuant to tariffs on file with the FERC. Our NGL pipeline that interconnects with Overland Pass Pipeline is leased to 
a third party that has obtained a FERC waiver from the tariff, filing and reporting requirements of the ICA, and our NGL 
pipeline that interconnects with ONEOK's Bakken NGL Pipeline is leased to a third party that is obligated to operate the leased 
pipeline in conformance with the ICA as a FERC-regulated NGL pipeline.

Generally, the FERC's authority over natural gas facilities extends to:

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

rates, operating terms and conditions of service;

the form of tariffs governing service;

the types of services we may offer to our customers;

the certification and construction of new, or the expansion of existing, facilities;

the acquisition, extension, disposition or abandonment of facilities;

customer creditworthiness and credit support requirements;

the maintenance of accounts and records;

relationships among affiliated companies involved in certain aspects of the natural gas business;

depreciation and amortization policies; and

the initiation and discontinuation of services.

The FERC's authority over crude oil and NGL pipelines is less broad, extending to:

• 

• 

• 

rates, rules and regulations of service;

the form of tariffs governing rates and service;

the maintenance of accounts and records; and

32

• 

depreciation and amortization policies.

Interstate natural gas pipelines subject to the jurisdiction of the FERC may not charge rates or impose terms and conditions 

of service that, upon review by the FERC, are found to be unjust, unreasonable, unduly discriminatory, or preferential. The 
maximum recourse rates that we may charge for our natural gas transportation and storage services are established through the 
FERC's ratemaking process. The maximum applicable recourse rates and terms and conditions for service are set forth in our 
FERC-approved tariffs. 

On June 29, 2018, Trailblazer filed a general rate case with the FERC proposing, among other things, an increase in rates 
on Trailblazer's Existing System Firm Transportation Service and a decrease in rates for Expansion System Firm Transportation 
Service and interruptible services. On July 31, 2018, the FERC issued an Order: (1) approving the as-filed rate decreases for 
Expansion System Firm Transportation Service and interruptible services, effective August 1, 2018; (2) accepting and 
suspending the rest of the rate case filing (including the proposed rate increases) to become effective January 1, 2019 subject to 
refund, and establishing hearing and settlement procedures; and (3) establishing a paper hearing to examine the extent to which 
Trailblazer is entitled to an Income Tax Allowance. Resolution of these issues remains pending before the FERC. In the event 
that Trailblazer is not able to recover its full cost of service as a result of the outcome of this proceeding, Trailblazer's cash 
flows and its results of operations could be adversely affected.

TIGT filed a general rate case with the FERC pursuant to Section 4 of the NGA in October 2015, which resulted in a 
settlement that was approved by an order issued by the FERC on November 2, 2016. The settlement established settlement rates 
to be effective through at least April 30, 2019. In the event the assumptions relied upon during settlement negotiations were 
incorrect or the actual costs incurred to operate the TIGT System increase, TIGT's cash flows and its results of operations could 
be adversely affected.

Pursuant to the NGA, existing interstate natural gas transportation and storage rates and terms and conditions of service 
may be challenged by complaint and are subject to prospective change by the FERC. Additionally, rate increases and changes to 
terms and conditions of service proposed by a regulated interstate pipeline may be protested and such increases or changes can 
be delayed and may ultimately be rejected by the FERC. We currently hold authority from the FERC to charge and collect (i) 
"recourse rates" (i.e., the maximum cost-based rates an interstate natural gas pipeline may charge for its services under its 
tariff); (ii) "discount rates" (i.e., rates offered by the natural gas pipeline to shippers at discounts vis-à-vis the recourse rates and 
that fall within the cost-based maximum and minimum rate levels set forth in the natural gas pipeline's tariff); and (iii) 
"negotiated rates" (i.e., rates negotiated and agreed to by the pipeline and the shipper for the contract term that may fall within 
or outside of the cost-based maximum and minimum rate levels set forth in the tariff, and which are individually filed with the 
FERC for review and acceptance). When capacity is available and offered for sale, the rates (which include reservation, 
commodity, surcharges, and fixed fuel and lost and unaccounted for charges) at which such capacity is sold are subject to 
regulatory approval and oversight. Regulators and customers on our natural gas pipeline systems have the right to protest or 
otherwise challenge the rates that we charge under a process prescribed by applicable regulations. The FERC may also initiate 
reviews of our rates. Customers on our interstate natural gas pipeline systems may also dispute terms and conditions contained 
in our agreements, as well as the interpretation and application of our tariffs, among other things.

Rates for interstate crude oil transportation service must be filed as a tariff with the FERC and are subject to applicable 
FERC regulation. The filed tariff rates include contract rates entered into with shippers willing to make long-term commitments 
to the pipeline to support new pipeline capacity. Contract rates generally are not subject to regulation or change by the FERC. 
Non-contract "walk-up" rates are available to uncommitted non-contract shippers and generally are subject to regulation and 
change by the FERC. Interstate crude oil pipelines typically must reserve at least ten percent of their capacity for walk-up 
shippers. Contract tariff rates may be changed by Pony Express on an annual basis to reflect annual FERC index adjustments to 
the extent permitted by contract. Non-contract rates may be adjusted, positively or negatively, on an annual basis pursuant to a 
FERC indexing procedure. An interstate crude oil pipeline may also file new tariff rates at any time, subject to contract 
restrictions and provisions, and FERC regulatory procedures. The filing of any indexed rate increase or other rate increase may 
be protested by parties having standing, subject to applicable regulatory and contract provisions, and thereby be subjected to 
cost-of-service review by the FERC to determine whether the proposed new rate is just and reasonable.

33

Under the ICA, which applies to the Pony Express System and the PRE Pipeline, parties having standing and not restricted 

by contract may protest newly filed rates and terms and conditions of service within a prescribed notice period. Currently, 
shippers party to a TDA for the Pony Express System are generally limited from protesting certain rates on the Pony Express 
System, but this limitation will not apply to such shipper upon expiration of their TDA. The FERC is authorized to suspend, 
subject to refund, the effectiveness of a protested rate for up to seven months while it determines if the protested rate is just and 
reasonable. Our rates may be reduced and we may be required to issue refunds as a result of settlement or by an order of the 
FERC following a hearing finding that a protested rate is unjust and unreasonable. Parties having standing and not restricted by 
contract may file a complaint at any time regarding existing rates and terms and conditions of service. If the complaint is not 
resolved by settlement, the FERC may conduct a hearing and order the crude oil pipeline to make reparations going back for up 
to two years prior to the date on which a complaint was filed if a rate is found to be unjust and unreasonable. We cannot 
guarantee that any new or existing local or joint tariff rate for service on the Pony Express System or the PRE Pipeline would 
not be rejected or modified by the FERC, or subjected to refunds or reparations. While the FERC regulates rates and terms and 
conditions of service for transportation of crude oil in interstate commerce by pipeline, state agencies may also regulate 
facilities (including construction, acquisition, disposition, financing, and abandonment), rates, and terms and conditions of 
service for crude oil pipeline transportation in intrastate commerce. Any successful challenge by a regulator or shipper in any of 
these matters could have a material adverse effect on our business, financial condition and results of operations.

Pony Express Pipeline's tariff rates may not always be eligible for increases to reflect a FERC index adjustment. For 

example, on November 2, 2016, the FERC issued an Advanced Notice of Proposed Rulemaking, under which the FERC is 
proposing changes to its policies regarding the permissible scope of rate increases based on its annual issuance of changes to 
the generic oil pipeline index, based on specific pipelines' earnings or their specific changes to costs. The FERC's Advanced 
Notice of Proposed Rulemaking does not propose specific regulations, and may be followed by a Notice of Proposed 
Rulemaking proposing specific regulations or a Policy Statement announcing new or changed policies. This proceeding is 
pending before the FERC. 

The FERC's jurisdiction over natural gas facilities extends to the certification and construction of interstate transportation 

and storage facilities, including, but not limited to, acquisitions, facility maintenance and upgrades, expansions, and 
abandonment of facilities and services. With some exceptions applicable to smaller projects, auxiliary facilities, and certain 
facility replacements, prior to commencing construction and/or operation of new or existing interstate natural gas transportation 
and storage facilities, an interstate natural gas pipeline must obtain a certificate authorizing the construction from, or file to 
amend its existing certificate with, the FERC. Typically, a significant expansion project requires review by a number of 
governmental agencies, including state and local agencies, whose cooperation is important in completing the regulatory process 
on schedule. Any delay or refusal by an agency to issue authorizations or permits as requested for one or more of these projects 
may mean that they will be constructed in a manner or with capital requirements that we did not anticipate or that we will not 
be able to pursue these projects. Such delay, modification or refusal could materially and negatively impact the additional 
revenues expected from these projects. The FERC does not regulate the construction, expansion, or abandonment of crude oil 
or NGL pipelines, whether interstate or intrastate, nor the initiation or discontinuation of services on those pipelines, provided 
that the action taken is not discriminatory or preferential among similarly situated shippers.

The FERC has the authority to conduct audits of regulated entities to assess compliance with FERC regulations and 
policies. The FERC also conducts audits to verify that the websites of interstate natural gas pipelines accurately provide 
information on the operations and availability of services on the pipeline. FERC regulations also require entities providing 
interstate natural gas and crude oil transportation services to comply with uniform terms and conditions for service, as set forth 
in publicly available tariffs or, as it concerns natural gas facilities, agreements for transportation and storage services executed 
between interstate pipelines and their customers. Natural gas transportation service agreements are generally required to 
conform, in all material respects, with the standard form of service agreements set forth in the natural gas pipeline's FERC-
approved tariff. The pipeline and a customer may choose to enter into a non-conforming service agreement so long as the 
agreement is filed with, and accepted by, the FERC. In the event that the FERC finds that a natural gas transportation 
agreement, in whole or part, is materially non-conforming, the FERC could reject the agreement or require us to modify the 
agreement, or alternatively require us to modify our tariff so that the non-conforming provisions are generally available to all 
customers. Transportation agreements entered into with crude oil shippers are generally not subject to FERC regulation or 
required to be available for FERC or public review, but the rates and terms and services provided to similarly situated shippers 
may not be unduly discriminatory or preferential.

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The FERC has promulgated rules and policies covering many aspects of our natural gas pipeline business, including 
regulations that require us to provide firm and interruptible transportation service on an open access basis that is not unduly 
discriminatory or preferential, provide internet access to current information about our available pipeline capacity and other 
relevant transmission information, and permit pipeline shippers to release contracted transportation and storage capacity to 
other shippers, thereby creating secondary markets for such services. FERC regulations also prevent interstate natural gas 
pipelines from sharing customer information with marketing affiliates, and restrict how interstate natural gas pipelines share 
transportation information with marketing affiliates. FERC regulations require that certain transmission function personnel of 
interstate natural gas pipelines function independently of personnel engaged in natural gas marketing functions. Crude oil 
pipelines subject to the ICA must comply with FERC regulations that require the pipeline to act as a common carrier and not 
engage in undue discrimination or preferential treatment with respect to shippers. The ICA also prevents crude oil and NGL 
pipelines from disclosing certain shipper information without the shipper's consent.

FERC policies also govern how interstate natural gas pipelines respond to interconnection requests from third party 
facilities, including other pipelines. Generally, an interstate natural gas pipeline must grant an interconnection request upon the 
satisfaction of several conditions. As a consequence, an interstate natural gas pipeline faces the risk that an interconnecting 
third-party pipeline may pose a risk of additional competition to serve a particular market or customer. Failure to comply with 
applicable provisions of the NGA, NGPA, EPAct 2005 and certain other laws, as well as with the regulations, rules, orders, 
restrictions and conditions associated with these laws, could result in the imposition of administrative and criminal remedies, 
including without limitation, revocation of certain authorities, disgorgement of ill-gotten gains, and civil penalties of more than 
$1 million per day, per violation. Violations of the ICA, the Energy Policy Act of 1992, or regulations and orders promulgated 
by the FERC are also subject to administrative and criminal penalties and remedies, including forfeiture and individual liability.

In addition, new laws or regulations or different interpretations of existing laws or regulations applicable to our pipeline 
systems or midstream facilities could have a material adverse effect on our business, financial condition, results of operations 
and prospects. For example, on November 22, 2017, in FERC Docket No. OR17-2-000, the FERC issued an Order on Petition 
for Declaratory Order addressing whether certain specific hypothetical transactions between a petroleum liquids pipeline and its 
marketing affiliate proposed by the petitioner, Magellan Midstream Partners, L.P., would violate the requirements of the ICA or 
the FERC's regulations and policies. The FERC concluded that certain transactions proposed by the petitioner could be 
inconsistent with the ICA and the FERC's policies. Various market participants filed requests for clarification or, in the 
alternative, rehearing of the November 22, 2017 declaratory order. On January 22, 2018, the FERC issued an order granting 
rehearing for further consideration, which afforded the FERC additional time to consider and rule on the pending clarification/
rehearing requests. The outcome of this proceeding and any related proceeding(s) may require us to modify the business 
practices between our petroleum liquids pipelines regulated by the FERC and our affiliated marketer, Stanchion. To the extent 
the foregoing proceedings result in substantial new restrictions on the transactions between petroleum liquids pipelines and 
their affiliated shippers, the business activities of Stanchion could be affected.

The FERC may also not continue to pursue its approach of pro-competitive policies as it considers matters such as 
interstate pipeline rates and rules and policies that may affect rights of access to natural gas transportation capacity and 
transportation and storage facilities. Further, the FERC is reviewing, and may possibly revise, its policies for analyzing whether 
proposed natural gas facilities are in the public convenience and necessity, including its Policy Statement on Certification of 
New Interstate Natural Gas Facilities issued in 1999. A change in such policies could delay or prevent the FERC's approval of 
proposed natural gas facilities, which could have a material impact on our business. We may face challenges to our rates or 
terms of service in the future. Any successful challenge could materially and adversely affect our future earnings and cash 
flows.

The rates and terms and conditions of our regulated assets are subject to review and possible adjustment by federal and 

state regulators, which could adversely affect our business, results of operations, financial condition and ability to make 
quarterly cash dividends to our Class A shareholders. 

Our shippers or other interested stakeholders, such as state natural gas utility regulatory agencies, may challenge the rates 

or the terms and conditions of service applicable to our natural gas or crude oil pipeline tariffs, unless they have entered into 
agreements not to challenge such tariffs. The FERC has authority to investigate our rates and terms and conditions of service 
pursuant to NGA Section 5 for natural gas pipelines and the ICA for common carrier oil pipelines. Our crude oil contract 
shippers have generally agreed not to complain or protest rates unless they are in conflict with their contracts. The FERC 
generally does not regulate crude oil transportation contracts, but contract rates must be filed with the FERC and tariff rules and 
regulations generally apply to contract shippers.

35

On our interstate crude oil pipeline systems, the Pony Express System and the PRE Pipeline, shippers may generally 
challenge new or existing rates at any time unless they have contractually agreed not to. Currently, shippers party to a TDA for 
the Pony Express System are generally limited from protesting certain rates on the Pony Express System, but this limitation 
will not apply to such shipper upon expiration of their TDA. As a result of settlement or by order of the FERC following 
hearing, its rates may be reduced. If a shipper files a lawful complaint, and if the complaint is not resolved with that shipper, to 
the extent the FERC determines after hearing that we have collected payment on rates that were not previously just and 
reasonable, we may be required to pay reparations to that shipper for up to two years prior to the date on which a complaint was 
filed. Regardless of the prospective just and reasonable rate, reparations may not be required below the last rates determined by 
the FERC to be just and reasonable. In other words, crude oil pipelines are not required to make reparations that refund 
revenues collected pursuant to rates previously determined to be just and reasonable.

The FERC has historically permitted regulated interstate crude oil and natural gas pipelines to include an income tax 
allowance in their cost of service used to calculate cost-based transportation rates. The allowance is intended to reflect the 
actual or potential tax liability attributable to the regulated entity’s operating income, regardless of the form of ownership. On 
July 1, 2016, in United Airlines, Inc. v FERC, the United States Court of Appeals for the D.C. Circuit vacated a pair of FERC 
orders to the extent they permitted an interstate refined petroleum products pipeline owned by a Master Limited Partnership 
("MLP") to include an income tax allowance in its cost-of-service rates. The D.C. Circuit held that the FERC had failed to 
demonstrate that the inclusion of both an income tax allowance in the pipeline’s rates and a return on equity determined using a 
discounted cash flow methodology would not lead to a double-recovery of income tax costs for pipelines organized as an MLP. 

Following the D.C. Circuit’s decision, the FERC issued its Revised Policy Statement on Treatment of Income Taxes in 
Docket No. PL17-1-000 on March 15, 2018 which eliminates the recovery of an income tax allowance by MLP crude oil and 
natural gas pipelines in cost-of-service-based rates. The FERC directed MLP crude oil pipelines to reflect the elimination of the 
income tax allowance in their Form No. 6, page 700 reporting and stated that it will incorporate the effects of this Revised 
Policy on industry-wide crude oil pipeline costs in the 2020 five-year review of the crude oil pipeline index level. The 
Commission also stated that it would address income tax allowances for other "pass-through" entities that are not MLPs in 
future proceedings.

While we are not an MLP, our ownership of our FERC regulated pipelines is held through our ownership in Tallgrass 
Equity which is a "pass-through" entity. The FERC could determine to apply the elimination of the income tax allowance to 
"pass-through" entities like Tallgrass Equity. To the extent that we charge cost-of-service based rates, those rates could be 
affected by the elimination of the income tax allowance if our rates are subject to complaint or challenge raised by shippers or 
by the FERC acting on its own initiative, or if we propose new cost-of-service rates or changes to our existing rates. In such 
instances, it is possible that certain tariff rates could be reduced, which could adversely affect our financial position, results of 
operations and ability to make quarterly cash dividends to our Class A shareholders.

On December 22, 2017, federal legislation known as the "Tax Cuts and Jobs Act" was enacted, which made various 

changes to the United States tax laws, including reducing the highest marginal U.S. federal corporate income tax rate from 35% 
to 21% for tax years beginning after December 31, 2017, adjusting the individual income tax brackets, and establishing limited 
deductions for certain income from "pass-through" entities. In late 2018, Rockies Express and TIGT each submitted one-time 
informational filings in compliance with Order No. 849, which required interstate natural gas pipelines to make a one-time 
informational filing on the rate effect of the changes in tax laws and policy following the Tax Cuts and Jobs Act and the FERC's 
changes to its Income Tax Policy Statement following the decision of the U.S. Court of Appeals for the D.C. Circuit in United 
Airlines, Inc. v. FERC in 2016. The FERC has indicated that it will review these filings to determine whether a pipeline's rates 
should be set for investigation under Section 5 of the Natural Gas Act or instead no action should be taken on the filing. The 
filings of Rockies Express and TIGT are pending before the FERC. If the FERC requires us to establish new tariff rates that 
reflect changes resulting from the Tax Cuts and Jobs Act, it is possible that certain tariff rates could be reduced, which could 
adversely affect our financial position, results of operations and ability to make quarterly cash dividends to our Class A 
shareholders.

Successful challenges to rates charged on our natural gas and crude oil pipeline systems, or to the terms and conditions of 

service on those systems, could have a material adverse effect on our business, results of operations, financial condition and 
ability to make quarterly cash dividends to our Class A shareholders. 

We are subject to numerous hazards and operational risks.

Our operations are subject to all the risks and hazards typically associated with transportation, storage, terminalling, 

processing, gathering and disposing of hydrocarbons and water. These operating risks include, but are not limited to:

• 

• 

damage to pipelines, facilities, equipment and surrounding properties caused by hurricanes, earthquakes, tornadoes, 
floods, fires or other adverse weather conditions and other natural disasters and acts of terrorism;

inadvertent damage from construction, vehicles, farm and utility equipment;

36

• 

• 

• 

• 

• 

uncontrolled releases of crude oil, natural gas and other hydrocarbons or hazardous materials, including water from 
hydraulic fracturing;

leaks, migrations or losses of natural gas and crude oil as a result of the malfunction of equipment or facilities;

outages at our facilities;

ruptures, fires, leaks and explosions; and

other hazards that could also result in personal injury and loss of life, pollution and other environmental risks, and 
suspension of operations.

These risks could result in substantial losses due to personal injury and/or loss of life, severe damage to and destruction of 
property and equipment and pollution or other environmental damage. The location of our assets, including certain segments of 
our pipeline systems in or near populated areas, including residential areas, commercial business centers, industrial sites and 
other public gathering areas could increase the level of damages resulting from these risks. Despite the precautions we take, 
events could cause considerable harm to people or property, could result in loss of service available to customers, and could 
have a material adverse effect on our financial condition and results of operations and ability to make quarterly cash dividends 
to Class A shareholders. 

For example, on January 31, 2018, Rockies Express experienced an operational disruption on its Seneca Lateral due to a 

pipe rupture and natural gas release in a rural area in Noble County, Ohio. There were no injuries reported and no evacuations. 
However, the release required Rockies Express to shut off the flow through the segment until February 27, 2018, when 
temporary repairs were completed allowing the segment to be placed back into service. Permanent repairs were completed in 
September 2018 and the total cost of remediation was approximately $6.1 million prior to any insurance recoveries. As an 
additional example, approximately 10,000 bbls of crude oil were released at the Sterling Terminal in January 2017 as a result of 
a defective roof drain system on a storage tank. While the release was restricted to the containment area designed for such 
purpose and approximately 9,000 bbls were ultimately recovered, the total cost to remediate the release was approximately 
$600,000.

In addition, maintenance, repair and remediation activities could result in service interruptions on segments of our systems 

or alter the operational profile of our systems. Any such service interruption or alteration could limit our ability to satisfy 
customer requirements, could obligate us to provide reservation charge credits to customers for constrained capacity, or could 
allow existing customers to be solicited by other companies for potential new projects that would compete directly with our 
services.

We could be required by regulatory authorities to test or undertake modifications to our systems, operations or both that 
could result in a material adverse impact on our business, financial condition and results of operations. Such actions, including 
those required by PHMSA, could materially and adversely impact our ability to meet contractual obligations and retain 
customers, with a resulting material adverse impact on our business and results of operations, and could also limit or prevent 
our ability to make quarterly cash dividends to our Class A shareholders. Some or all of our costs arising from these operational 
risks may not be recoverable under insurance, contractual indemnification or increases in rates charged to our customers.

Our business could be negatively impacted by security threats, including cyber security threats, and related disruptions.

We rely on our information technology infrastructure to process, transmit and store electronic information, including 
information we use to safely operate our assets. The U.S. government has issued public warnings that indicate that energy 
assets might be specific targets of cyber security threats. We may face cyber security and other security threats to our 
information technology infrastructure, which could include threats to our operational and safety systems that operate our 
pipelines, plants and assets. We could face unlawful attempts to gain access to our information technology infrastructure, 
including coordinated attacks from hackers, whether state-sponsored groups, "hacktivists," or private individuals. The age, 
operating systems or condition of our current information technology infrastructure and software assets and our ability to 
maintain and upgrade such assets could affect our ability to resist cyber security threats. We could also face attempts to gain 
access to information related to our assets through unauthorized access by targeting acts of deception against individuals with 
legitimate access to physical locations or information, otherwise known as "social engineering."

Our information technology infrastructure is critical to the efficient operation of our business and essential to our ability to 
perform day-to-day operations. Breaches in our information technology infrastructure or physical facilities, or other disruptions, 
could result in damage to our assets, service interruptions, safety incidents, damage to the environment, potential liability or the 
loss of contracts, and have a material adverse effect on our operations, financial position, results of operations and prospects. 
Further, as cyber incidents continue to evolve, we may be required to expend additional resources to continue to modify or 
enhance our protective and detective measures or to investigate and remediate any vulnerability to cyber incidents. 

37

If we are unable to protect our information and telecommunication systems against disruptions or failures, our 

operations could be disrupted.

We rely extensively on computer systems to process transactions, maintain information and manage our business. 

Disruptions in the availability of our computer systems could impact our ability to service our customers and adversely affect 
our sales and results of operations. We are dependent on internal and third-party information technology networks and systems, 
including the Internet, wired, and wireless communications, to process, transmit and store electronic information. Our computer 
systems are subject to damage or interruption due to system replacements, implementations and conversions, power outages, 
computer or telecommunication failures, computer viruses, security breaches, catastrophic events such as fires, tornadoes, 
snowstorms and floods and usage errors by our employees, consultants and contractors. If our computer systems are damaged 
or cease to function properly, we may have to make a significant investment to fix or replace them, and we may have 
interruptions in our ability to service our customers. Although we attempt to reduce these risks by using redundancy for certain 
critical systems, this disruption caused by the unavailability of our computer systems could nevertheless significantly disrupt 
our operations or may result in financial damage or loss due to, among other things, lost or misappropriated information.

Violations of data protection laws may carry fines and expose us to criminal sanctions and civil suits.

We are subject to data protection laws. Complying with varying jurisdictional requirements could increase the costs and 

complexity of compliance, and violations of applicable data protection laws could result in significant penalties. Non-
compliance with data protection laws could expose us to regulatory investigations, which could result in fines and penalties. In 
addition to imposing fines, regulators may also issue orders to stop processing personal data, which could disrupt operations. 
We could also be subject to litigation from persons or corporations allegedly affected by data protection violations. Any 
violation of these laws or harm to our reputation could have a material adverse effect on our business, financial condition, 
results of operations and prospects. 

Our insurance coverage may not be adequate.

We are not insured or fully insured against all risks that could affect our business, including losses from environmental 
accidents or cyber security threats. For example, we do not maintain business interruption insurance in the type and amount to 
cover all possible losses. In addition, we do not carry insurance for certain environmental exposures, including but not limited 
to potential environmental fines and penalties, certain business interruptions, named windstorm or hurricane exposures and, in 
limited circumstances, certain political risk exposures. Further, in the event there is a total or partial loss of one or more of our 
insured assets, any insurance proceeds that we may receive in respect thereof may be insufficient to effect a restoration of such 
asset to the condition that existed prior to such loss. In addition, we are either not insured or not fully insured with respect to the 
legal proceedings described in Note 19 – Legal and Environmental Matters and may, depending upon the circumstances, need 
to pay self-insured retention amounts prior to having losses covered by the insurance providers. The occurrence of any 
operating risks not fully covered by insurance could have a material adverse effect on our business, financial condition, results 
of operations and cash flows.

Furthermore, we may not be able to maintain or obtain insurance of the type and amount we desire at reasonable rates, and 

we have elected and may elect in the future to self-insure a portion of our risks of loss. As a result of market conditions, 
premiums and deductibles for certain types of insurance policies may substantially increase, and in some instances, certain 
types of insurance could become unavailable or available only for reduced amounts of coverage. Any insurance coverage we do 
obtain may contain large deductibles or fail to cover certain hazards or cover all potential losses.

Our pipeline integrity program may impose significant costs and liabilities on us, while increased regulatory 
requirements relating to the integrity of our pipeline systems may require us to make additional capital and operating 
expenditures to comply with such requirements.

We are subject to extensive laws and regulations related to pipeline integrity. There are, for example, federal requirements 
set by PHMSA for owners and operators of pipelines in the areas of pipeline design, construction, and testing, the qualification 
of personnel and the development of operations and emergency response plans. The rules require pipeline operators to develop 
integrity management programs to comprehensively evaluate their pipelines and take measures to protect pipeline segments 
located in what the rules refer to as HCAs.

Our pipeline operations are subject to pipeline safety regulations administered by PHMSA. These regulations, among other 
things, include requirements to monitor and maintain the integrity of our pipeline systems and determine the pressures at which 
our pipeline systems can operate. The Pipeline Safety Act of 2011, enacted January 3, 2012, amends the Pipeline Safety 
Improvement Act of 2002 in a number of significant ways, including:

• 

reauthorizing funding for federal pipeline safety programs, increasing penalties for safety violations and establishing 
additional safety requirements for newly constructed pipelines;

38

• 

• 

• 

requiring PHMSA to adopt appropriate regulations within two years and requiring the use of automatic or remote- 
controlled shutoff valves on new or rebuilt pipeline facilities;

requiring operators of pipelines to verify MAOP and report exceedances within five days; and

requiring studies of certain safety issues that could result in the adoption of new regulatory requirements for new and 
existing pipelines, including changes to integrity management requirements for HCAs, and expansion of those 
requirements to areas outside of HCAs.

In August 2012, PHMSA published rules to update pipeline safety regulations to reflect provisions included in the Pipeline 

Safety Act of 2011, including increasing maximum civil penalties from $0.1 million to $0.2 million per violation per day of 
violation and from $1.0 million to $2.0 million as a maximum amount for a related series of violations as well as changing 
PHMSA's enforcement process. In November 2018, PHMSA issued a final rule that increased the per-day violation penalty 
from $209,002 to $213,268 and the maximum penalty for a related series of violations from $2,090,022 to $2,132,679, effective 
November 27, 2018. On January 13, 2017, PHMSA finalized new hazardous liquid pipeline safety regulations extending certain 
regulatory reporting requirements to all hazardous liquid gathering (including oil) pipelines. The final rule would have required 
additional event-driven and periodic inspections, required the use of leak detection systems on all hazardous liquid pipelines, 
modified repair criteria, and required certain pipelines to eventually accommodate in-line inspection tools. However, on 
January 24, 2017, this rule was withdrawn for further review by the Trump Administration and was never published in the 
Federal Register. In addition, on April 8, 2016, PHMSA published a notice of proposed rule-making, or NPRM, addressing 
natural gas transmission and gathering lines. The proposed rule would include changes to existing integrity management 
requirements and would expand assessment and repair requirements to pipelines in MCAs, along with other changes. Further, 
this NPRM would build on the requirements in an Advisory Bulletin PHMSA issued in May 2012, which advised pipeline 
operators of anticipated changes in annual reporting requirements and that if they are relying on design, construction, 
inspection, testing, or other data to determine the pressures at which their pipelines should operate, the records of that data must 
be traceable, verifiable and complete. Comments on the NPRM were due on July 7, 2016; further action is pending. We are still 
monitoring and evaluating the effects of these proposed and recently finalized requirements on our operations. 

The PIPES Act, enacted on June 22, 2016, reauthorized PHMSA's oil and gas pipeline programs through 2019 and 

provided for the following new mandates, among others:

•  Empowers PHMSA to issue emergency orders to individual operators, groups of operators, or the industry upon a 

written finding that an unsafe condition or practice constitutes or is causing an imminent hazard; 

•  Requires PHMSA, in consultation with other federal agencies, to issue minimum safety standards for underground 

natural gas storage facilities within two years;

•  Requires PHMSA to conduct post-inspection briefings outlining any concerns within 30 days and providing written 

preliminary findings within 90 days to the extent practicable;

•  Requires liquid pipeline operators to provide safety data sheets on spilled product to the designated federal on-scene 
coordinator and appropriate state and local emergency responders within 6 hours of telephonic or electronic notice of 
an accident to the National Response Center; and

•  Requires PHMSA to publish updates on its website every 90 days on the status of an outstanding final rule required by 

a statutory mandate.

On December 14, 2016, PHMSA issued an IFR that addresses safety issues related to downhole facilities, including well 
integrity, well bore tubing and casing at underground natural gas storage facilities. The IFR incorporates by reference two of the 
American Petroleum Institute's Recommended Practice standards and mandates certain reporting requirements for operators of 
underground natural gas storage facilities. Operators of natural gas storage facilities were given one year from January 18, 2017, 
the effective date of the IFR, to implement this first set of PHMSA regulations governing underground storage fields. PHMSA 
determined, however, that it will not issue enforcement citations to any operators for violations of provisions of the IFR that had 
previously been non-mandatory provisions of American Petroleum Institute Recommended Practices 1170 and 1171 until one year 
after PHMSA issues a final rule.

In July 2018, PHMSA issued an advance notice of proposed rulemaking seeking comment on the class location requirements 
for natural gas transmission pipelines, and particularly the actions operators must take when class locations change due to population 
growth or building construction near the pipeline.

The ultimate costs of compliance with the integrity management rules are difficult to predict. Changes such as advances of 

in-line inspection tools, identification of additional threats to a pipeline's integrity and changes to the amount of pipe 
determined to be located in HCAs or expansion of integrity management requirements to areas outside of HCAs, such as the 
MCAs proposed by the April 2016 NPRM, can have a significant impact on the costs to perform integrity testing and repairs. 

39

For example, starting in 2014, Trailblazer's operating capacity was decreased as a result of smart tool surveys that 

identified approximately 25 - 35 miles of pipe as potentially requiring repair or replacement. During 2016 and 2017, Trailblazer 
incurred approximately $21.8 million of remediation costs to address this issue, including replacing approximately 8 miles of 
pipe. To date the pressure and capacity reduction has not prevented Trailblazer from fulfilling its firm service obligations at 
existing subscription levels or had a material adverse financial impact on us. However, Trailblazer continued performing 
remediation to increase and maximize its operating capacity over the long-term and spent approximately $21 million during 
2018 for this pipe replacement and remediation work. As of October 2018, the pipeline was returned to its maximum allowable 
operating capacity. Trailblazer is exploring all possible cost recovery options to recover expenditures, including recovery 
through a general rate increase, negotiated rate agreements with its customers, or other FERC-approved recovery mechanisms.

Additionally, in connection with certain crack tool runs on the Pony Express System completed in 2015, 2016 and 2017, 

Pony Express completed approximately $18 million of remediation for anomalies identified on the Pony Express System 
associated with portions of the pipeline converted from natural gas to crude oil service. Remediation work was substantially 
complete as of March 31, 2018.

There can be no assurance as to the amount or timing of future expenditures required to remediate or resolve these issues, 
and actual future expenditures may be different from the amounts we currently anticipate. These integrity issues could have a 
material adverse effect on our business, financial position, results of operations and prospects.

We will continue pipeline integrity testing programs to assess and maintain the integrity of our existing and future pipelines 

as required by the U.S. Department of Transportation regulations. The results of these tests could cause us to incur potentially 
material unanticipated capital and operating expenditures for repairs or upgrades.

Further, additional laws, regulations and policies that may be enacted or adopted in the future or a new interpretation of 
existing laws and regulations could significantly increase the amount of these expenditures. For example, PHMSA issued an 
Advisory Bulletin in May 2012 which advised pipeline operators that they must have records to document the MAOP for each 
section of their pipeline and that the records must be traceable, verifiable and complete. Locating such records and, in the 
absence of any such records, verifying maximum pressures through physical testing (including hydrotesting) or modifying or 
replacing facilities to meet the demands of verifiable pressures, could significantly increase costs. TIGT continues to investigate 
and, when necessary, report to PHMSA the miles of pipeline for which it has incomplete records for MAOP. We are currently 
undertaking an extensive internal record review in view of the anticipated PHMSA annual reporting requirements. Additionally, 
failure to locate such records or verify maximum pressures could require us to operate at reduced pressures, which would 
reduce available capacity on our natural gas pipeline systems. These specific requirements do not currently apply to crude oil 
pipelines, but proposed regulations implementing the Pipeline Safety Act of 2011 and future regulations implementing the 
PIPES Act likely will expand the scope of regulation applicable to crude oil pipelines. There can be no assurance as to the 
amount or timing of future expenditures required to comply with pipeline integrity regulation, and actual future expenditures 
may be different from the amounts we currently anticipate. In addition, we may be subject to enforcement actions and penalties 
for failure to comply with pipeline regulations. Revised or additional regulations that result in increased compliance costs or 
additional operating restrictions could have a material adverse effect on our business, financial position, results of operations 
and prospects. In addition, we may be subject to enforcement actions and penalties for failure to comply with pipeline 
regulations.

Our operations are subject to governmental laws and regulations relating to the protection of the environment, which 

may expose us to significant costs, liabilities and expenditures that could exceed our current expectations.

Substantial costs, liabilities, delays and other significant issues related to environmental laws and regulations are inherent 
in our crude oil transportation, storage, gathering and terminalling, natural gas transportation, storage, gathering and processing, 
NGL transportation and water business services, and as a result, we may be required to make substantial expenditures that 
could exceed current expectations. Our operations are subject to extensive federal, state, and local laws and regulations 
governing health and safety aspects of our operations, environmental protection, including the discharge of materials into the 
environment, and the security of chemical and industrial facilities. These laws include, but are not limited to, the following:

•  CAA and analogous state and local laws, which impose obligations related to air emissions and which the EPA has 

relied upon as authority for adopting climate change regulatory initiatives;

•  CWA and analogous state and local laws, which regulate discharge of pollutants or fill material from our facilities to 

state and federal waters, including wetlands and which require compliance with state water quality standards;

•  CERCLA and analogous state and local laws, which regulate the cleanup of hazardous substances that may have been 

released at properties currently or previously owned or operated by us or locations to which we have sent wastes for 
disposal;

•  RCRA and analogous state and local laws, which impose requirements for the handling and discharge of hazardous 

and nonhazardous solid waste from our facilities;

40

•  The SDWA, which ensures the quality of the nation's public drinking water through adoption of drinking water 

standards and controls the waste fluids from disposal wells into below-ground formations;

•  OSHA and analogous state and local laws, which establish workplace standards for the protection of the health and 

safety of employees, including the implementation of hazard communications programs designed to inform employees 
about hazardous substances in the workplace, potential harmful effects of these substances, and appropriate control 
measures;

•  NEPA and analogous state and local laws, which require federal agencies to evaluate major agency actions having the 

potential to significantly impact the environment and which may require the preparation of Environmental 
Assessments and more detailed Environmental Impact Statements that may be made available for public review and 
comment;

•  The Migratory Bird Treaty Act, or MBTA, and analogous state and local laws, which implement various treaties and 
conventions between the United States and certain other nations for the protection of migratory birds and, pursuant to 
which the taking, killing or possessing of migratory birds is unlawful without a permit, thereby potentially requiring 
the implementation of operating restrictions or a temporary, seasonal, or permanent ban in affected areas;

•  ESA and analogous state and local laws, which seek to ensure that activities do not jeopardize endangered or 

threatened animals, fish and plant species, nor destroy or modify the critical habitat of such species;

•  Bald and Golden Eagle Protection Act, or BGEPA, and analogous state and local laws, which prohibit anyone, without 
a permit issued by the Secretary of the Interior, from "taking" bald or golden eagles, including their parts, nests, or 
eggs, and defines "take" as "pursue, shoot, shoot at, poison, wound, kill, capture, trap, collect, molest or disturb;"

•  OPA and analogous state and local laws, which impose liability for discharges of oil into waters of the United States 

and requires facilities which could be reasonably expected to discharge oil into waters of the United States to maintain 
and implement appropriate spill contingency plans; and

•  National Historic Preservation Act, or NHPA, and analogous state and local laws, which are intended to preserve and 

protect historical and archeological sites.

Various governmental authorities, including but not limited to the EPA, the U.S. Department of the Interior, the U.S. 
Department of Homeland Security, and analogous federal, state and local agencies have the power to enforce compliance with 
these and other similar laws and regulations and the permits and related plans issued under them, oftentimes requiring difficult 
and costly actions. Failure to comply with these and other similar laws, regulations, permits, plans and agreements may result in 
the assessment of administrative, civil and criminal penalties, the imposition of remedial obligations, the imposition of stricter 
conditions on or revocation of permits, the issuance of injunctions limiting or preventing some or all of our operations, and 
delays in granting permits.

There is inherent risk of the incurrence of environmental costs and liabilities in our business, some of which may be 
material, due to our handling of the products we transport, process, treat, dispose, gather or store, air emissions related to our 
operations, historical industry operations, and waste disposal practices, such as the prior use of flow meters and manometers 
containing mercury. These activities are subject to stringent and complex federal, state and local laws and regulations governing 
environmental protection, including the discharge of materials into the environment and the protection of plants, wildlife, and 
natural and cultural resources. These laws and regulations can restrict or impact our business activities in many ways, such as 
restricting the way we handle or dispose of wastes or requiring remedial action to mitigate pollution conditions that may be 
caused by our operations or that are attributable to former operators. Joint and several, strict liability may be incurred without 
regard to fault under certain environmental laws and regulations, including but not limited to CERCLA, RCRA and analogous 
state laws, for the remediation of contaminated areas and in connection with spills or releases of materials associated with oil, 
natural gas and wastes on, under, or from our properties and facilities, many of which have been used for midstream activities 
for a number of years, oftentimes by third parties not under our control. We are generally responsible for all liabilities 
associated with the environmental condition of our facilities and assets, whether acquired or developed, regardless of when the 
liabilities arose and whether they are known or unknown. In connection with certain acquisitions and divestitures, we could 
acquire, or be required to provide indemnification against, environmental liabilities that could expose us to material losses, 
which may not be covered by insurance. In addition, the steps we could be required to take to bring certain facilities into 
compliance could be prohibitively expensive, and we might be required to shut down, divest or alter the operation of those 
facilities, which might cause us to incur losses. We are currently conducting remediation at several sites to address 
contamination. For these ongoing environmental remediation projects, we spent approximately $568,000 in 2017, 
approximately $362,000 in 2018 and we have budgeted approximately $1.1 million for 2019.

41

Private parties, including but not limited to the owners of properties through which our pipelines pass and facilities where 
our wastes are taken for reclamation or disposal, may have the right to pursue legal actions to enforce compliance as well as to 
seek damages for non-compliance with environmental laws, regulations and permits issued thereunder, or for personal injury or 
property damage arising from our operations. Some sites at which we operate are located near current or former third-party 
hydrocarbon storage, processing, operations or other facilities, and there is a risk that contamination has migrated from those 
sites to ours that could result in remedial action. In addition, increasingly strict laws, regulations and enforcement policies could 
materially increase our compliance costs and the cost of any remediation that may become necessary. Our insurance does not 
cover all environmental risks and costs and may not provide sufficient coverage if an environmental claim is made against us.

In June 2016, the EPA extended its National Enforcement Initiatives, enforcement priorities list, including an initiative 

related to Energy Extraction Activities, for 2017 through 2019, and the EPA is retaining the Energy Extraction Activities 
initiative for an additional three years, effective October 2016. The EPA has clarified that it will focus on significant public 
health and environmental problems: exposure to significant releases of volatile organic compounds, reducing non-attainment, 
and reducing water quality impairment. We cannot predict what the results of the current initiative or any future initiative will 
be, or whether federal, state or local laws or regulations will be enacted in this area. If new regulations are imposed related to 
oil and gas extraction, the volumes of products, including hydrocarbons and water, that we transport, store, gather, dispose and/
or process could decline and our results of operations could be materially and adversely affected.

Our business may be materially and adversely affected by changed regulations and increased costs due to stricter pollution 

control requirements or liabilities resulting from non-compliance with required operating or other regulatory permits or plans 
developed thereunder. Also, we might not be able to obtain or maintain from time to time all required environmental regulatory 
approvals for our operations, or may have to implement contingencies or conditions in order to obtain such approvals. If there 
is a delay in obtaining any required environmental regulatory approvals, or if we fail to obtain and comply with them, the 
operation, maintenance or construction of our facilities could be prevented or become subject to additional costs, resulting in 
potentially material adverse consequences to our business, financial condition, results of operations and cash flows. For 
instance, on November 25, 2014, the Wyoming Department of Environmental Quality issued a Notice of Violation for 
violations of Part 60 Subpart OOOO related to the Casper Gas Plant Depropanizer project. TMID had discussed the issues in a 
meeting with WDEQ in Cheyenne on November 17, 2014 and submitted a disclosure on November 20, 2014 detailing the 
regulatory issues and potential violations. The project triggered a modification of the CAA's NSPS Subpart OOOO for the 
entire plant. The project equipment as well as plant equipment subjected to Subpart OOOO was not monitored timely, and 
initial notification was not made timely. Settlement negotiations with WDEQ are currently ongoing. Costs associated with 
penalties and to comply with the terms of any consent decree or settlement, as well as with Subpart OOOO, could be material.

We are also generally responsible for all liabilities associated with the environmental condition of our facilities and assets, 
whether acquired or developed, regardless of when the liabilities arose and whether they are known or unknown. In connection 
with certain acquisitions and divestitures, we could acquire, or be required to provide indemnification against, environmental 
liabilities that could expose us to material losses, which may not be covered by insurance. In addition, the steps we could be 
required to take to bring certain facilities into compliance could be prohibitively expensive, and we might be required to shut 
down, divest or alter the operation of those facilities, which might cause us to incur losses. As an example, in August 2011, the 
EPA and the Wyoming Department of Environmental Quality conducted an inspection of the Leak Detection and Repair 
Program, or LDAR, at the Casper Plant in Wyoming. In September 2011, TMID received a letter from the EPA alleging 
violations of the Standards of Performance of Equipment Leaks for Onshore Natural Gas Processing Plant requirements under 
the CAA. TMID received a letter from the EPA concerning settlement of this matter in April 2013 and received additional 
settlement communications from the EPA and Department of Justice beginning in July 2014. In July 2014, the EPA provided 
TMID with a draft Consent Decree that has been the basis for subsequent settlement negotiations. Subsequently, the EPA 
indicated that it intends to join TIGT as a defendant in this matter based on TIGT's ownership of the compressor station located 
adjacent to the Casper Gas Plant in order to address alleged LDAR issues at the compressor station. Settlement negotiations are 
continuing between the parties. We are not currently able to estimate the costs that may be associated with a settlement or other 
resolution of this matter, which could be material.

We have agreed to a number of conditions in our environmental permits and associated plans, approvals and authorizations 
that require the implementation of environmental habitat restoration, enhancement and other mitigation measures that involve, 
among other things, ongoing maintenance and monitoring. Governmental authorities may require, and community groups and 
private persons may seek to require, additional mitigation measures in the future to further protect ecologically sensitive areas 
where we currently operate, and would operate if our facilities are extended or expanded, or if we construct new facilities, and 
we are unable to predict the effect that any such measures would have on our business, financial position, results of operations 
or prospects.

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Also, on June 29, 2015, the EPA and the U.S. Army Corps of Engineers, or Corps, issued a final rule to clarify the term 
"waters of the United States" as it pertains to federal jurisdiction under the CWA. Many interested parties believe that the rule 
expands federal jurisdiction under the CWA. This rule was initially challenged in federal courts at both the appellate and district 
court levels. It was stayed nationwide by the U.S. Court of Appeals for the Sixth Circuit, but based on a January 2018 U.S. 
Supreme Court decision determining that only the district courts have jurisdiction to hear the challenges, the Sixth Circuit stay 
was withdrawn. Some federal district courts have enjoined the rule, but the rule is currently effective in over 20 states. In 
February 2018, the agencies also published a final rule adding a February 6, 2020 applicability date to the 2015 rule, but this 
rule was enjoined nationwide in August 2018. In December 2018, the EPA and the U.S. Army Corp of Engineers released a 
proposed rule to redefine the extent of CWA jurisdiction. If finalized, this rule would replace the 2015 rule defining "waters of 
the United States" and the scope of federal jurisdiction. Although it is unclear how or whether the Corps and the EPA will 
implement the 2015 rule in states in which we have operations at this time, the rule may require additional Corps or EPA 
authorizations or involvement in our future operations, for instance, if we extend its pipelines into or across areas (such as 
certain ditches) newly considered "waters of the United States" under the 2015 final rule.

Certain interest groups generally opposed to the development of oil, natural gas and NGLs, and hydraulic fracturing in 

particular, have from time to time advanced various options for ballot initiatives aimed at significantly limiting or preventing 
the development of oil, natural gas and NGLs. For example, a Colorado ballot initiative, Proposition 112, would have 
substantially increased setback distances for various upstream activities, thereby substantially restricting new oil and gas 
development in the state. Although Proposition 112 was defeated in the November 2018 elections, similar efforts in Colorado or 
elsewhere, if passed, could restrict oil and gas development in the future which could result in a reduction in demand for our 
services. 

The general trend in environmental regulation is to place more restrictions and limitations on activities that may affect the 

environment. There can be no assurance as to the amount or timing of future expenditures for environmental compliance or 
remediation, and actual future expenditures may be materially different from the amounts we currently anticipate. Revised or 
additional regulations that result in increased compliance costs or additional operating restrictions, particularly if those costs are 
not fully recoverable from our customers, could have a material adverse effect on our business, financial position, results of 
operations and prospects.

Climate change regulation at the federal, state or regional levels could result in increased operating and capital costs for 

us and reduced demand for our services.

The United States Congress has from time to time considered adopting legislation to reduce emissions of GHGs, and there 

has been a wide-ranging policy debate, both nationally and internationally, regarding the impact of these gases and possible 
means for their regulation. In addition, efforts have been made and continue to be made in the international community toward 
the adoption of international treaties or protocols that would address global climate change issues. In 2015, the United States 
participated in the United Nations Conference on Climate Change, which led to the creation of the Paris Agreement. On April 
22, 2016, 175 countries, including the United States, signed the Paris Agreement. The Paris Agreement will require countries to 
review and "represent a progression" in their intended nationally determined contributions, which set GHG emission reduction 
goals, every five years beginning in 2020. However, in August of 2017, the United States informed the United Nations of its 
intent to withdraw from the Paris Agreement. The earliest possible effective withdrawal date from the Paris Agreement is 
November 2020. 

Following a finding by the EPA that certain GHGs represent an endangerment to human health, the EPA adopted two sets 

of rules regulating GHG emissions under the CAA, one that requires a reduction in emissions of GHGs from motor vehicles 
and another that regulates emissions of GHGs from certain large stationary sources. The EPA also expanded its existing GHG 
emissions reporting requirements to include upstream petroleum and natural gas systems that emit 25,000 metric tons or more 
of CO2 equivalent per year. Some of our facilities are required to report under this rule, and operational and/or regulatory 
changes could require additional facilities to comply with GHG emissions reporting requirements. Furthermore, the EPA 
adopted a final rule, effective August 2, 2016, imposing more stringent controls on methane and volatile organic compounds 
emissions from oil and gas development, production, and transportation operations under the New Source Performance 
Standard, or NSPS, program. In October 2018, the EPA proposed a rule to reconsider and amend various requirements of the 
NSPS standard. However, the rule currently remains in effect. In 2016, the EPA also finalized a rule regarding the alternative 
criteria for aggregating multiple small surface sites into a single source for air quality permitting purposes. This rule could 
cause small facilities, on an aggregate basis, to be deemed a major source, thereby triggering more stringent air permitting 
processes and requirements across the oil and gas industry. The BLM also adopted new rules, effective January 17, 2017, to 
reduce venting, flaring, and leaks during oil and natural gas production activities on onshore federal and Indian leases. This rule 
was suspended, stayed, and reinstated before the BLM issued a final rule in September 2018 that rescinds and revises many of 
the requirements of the 2017 rule. The revision rule is being challenged in the U.S. District Court for the Northern District of 
California but currently remains in effect. In addition, many states have already taken legal measures to reduce emissions of 
GHGs, primarily through the planned development of GHG emission inventories and/or regional GHG cap and trade programs. 

43

Most of these cap and trade programs work by requiring either major sources of emissions, such as electric power plants, or 
major producers of fuels, to acquire and surrender emission allowances with the number of allowances available for purchase 
reduced each year until the overall GHG emission reduction goal is achieved.

The adoption of legislation or regulations imposing reporting or permitting obligations on, or limiting emissions of GHGs 
from, our equipment and operations could require us to incur additional costs to reduce emissions of GHGs associated with our 
operations, could adversely affect our operations in the absence of any permits that may be required to regulate emission of 
GHGs, or could adversely affect demand for the crude oil and natural gas we gather, process, or otherwise handle. For instance, 
the EPA's recently finalized NSPS rules or future rules under CAA Section 111(d) could result in the direct regulation of GHGs 
associated with our operations, including the operations of Rockies Express. We are not able at this time to estimate such 
increased costs; however, they could be significant. While we may be able to recover some or all of such increased costs in the 
rates charged by our processing facilities, such recovery of costs is uncertain and may depend on the terms of our contracts with 
our customers.

If new laws or regulations that significantly restrict GHGs are adopted, such laws could also make it more difficult or 
costly for our customers to operate, which could reduce our customers' production and therefore the demand for our services. 
While we are not able at this time to estimate such additional costs, as is the case with similarly situated entities in the industry, 
they could be significant for us. Restrictions on GHG emissions could also reduce the volume of natural gas that our customers 
produce, and could thereby adversely affect our revenues and results of operations. Compliance with such rules could also 
generally result in additional costs, including increased capital expenditures and operating costs, for us and our customers, 
which could ultimately decrease end-user demand for our services and could have a material adverse effect on our business. In 
addition, to the extent financial markets view climate change and GHG emissions as a financial risk, this could materially and 
adversely impact our cost of and access to capital. Legislation or regulations that may be adopted to address climate change, or 
incentives to conserve energy or use alternative energy sources, could also affect the markets for our services by making natural 
gas and crude oil products less desirable than competing sources of energy. In addition, in response to concerns related to 
climate change, certain investors may divest oil and gas investments. For example, officials in New York state and New York 
City have announced their intent to divest the state and city pension funds' holdings in fossil fuel companies. Such divestments 
could adversely impact our costs of and access to capital.

Increased regulation of hydraulic fracturing and other oil and natural gas processing operations could affect our 
operations and result in reductions or delays in production by our customers, which could have a material adverse impact 
on our revenues.

A sizeable portion of our customers' production comes from hydraulically fractured wells. Hydraulic fracturing is an 
important and common practice that is used to stimulate production of hydrocarbons from tight formations. The process 
typically involves the injection of water, sand and a small percentage of chemicals under pressure into the formation to fracture 
the surrounding rock and stimulate production. The process is regulated by state agencies, typically the state's oil and gas 
commission; however, the EPA has asserted federal regulatory authority over certain hydraulic fracturing activities involving 
diesel under the SDWA and has released draft permitting guidance for hydraulic fracturing activities that use diesel in fracturing 
fluids in those states where the EPA is the permitting authority. A number of federal agencies, including the EPA and the U.S. 
Department of Energy, are analyzing, or have been requested to review, a variety of environmental issues associated with 
hydraulic fracturing. For example, on May 19, 2014, the EPA published an advance notice of rulemaking under the Toxic 
Substances Control Act, to gather information regarding the potential regulation of chemical substances and mixtures used in 
oil and gas exploration and production. In May 2016, the EPA issued final rules that update new source performance standard 
requirements and that will impose more stringent controls on methane and volatile organic compounds emissions from oil and 
gas development and production operations, including hydraulic fracturing and other well completion activity. In October 2018, 
the EPA proposed a rule to reconsider and amend various requirements of the NSPS standard. However, the rule currently 
remains in effect. The EPA also issued a final rule in June 2016 that prohibits the discharge of hydraulic fracturing wastewater 
from onshore unconventional oil and gas extraction facilities into publicly owned sewage treatment plants; however, facilities 
that were lawfully discharging this wastewater to publicly owned sewage treatment plants on April 17, 2015 have until August 
29, 2019 to comply with this rule. Also, effective June 24, 2015, the BLM adopted rules regarding well stimulation, chemical 
disclosures, water management, and other requirements for hydraulic fracturing on federal and Indian lands. However, in 
December 2017, the BLM published a final rule rescinding the 2015 rule. The rescission is currently subject to legal challenge. 
Also, the BLM adopted new rules effective January 17, 2017, to reduce venting, flaring, and leaks during oil and natural gas 
production activities on onshore federal and Indian leases. This rule was suspended, stayed, and reinstated before the BLM 
issued a final rule in September 2018 that rescinds and revises many of the requirements of the 2017 rule. The revision rule is 
being challenged in the U.S. District Court for the Northern District of California but currently remains in effect.

44

Congress from time to time has considered the adoption of legislation to provide for federal regulation of hydraulic 
fracturing under the SDWA and to require disclosure of the chemicals used in the hydraulic fracturing process. In addition, 
some states, including those in which we operate, have adopted, and other states are considering adopting, regulations that 
could impose more stringent disclosure and/or well construction requirements on hydraulic fracturing operations. Local 
government also may seek to adopt ordinances within their jurisdictions regulating the time, place and manner of drilling 
activities in general or hydraulic fracturing activities in particular, and in some cases, may seek to ban hydraulic fracturing 
entirely. Some state and local authorities have considered or imposed new laws and rules related to hydraulic fracturing, 
including temporary or permanent bans, additional permit requirements, operational restrictions and chemical disclosure 
obligations on hydraulic fracturing in certain jurisdictions or in environmentally sensitive areas. Other governmental agencies, 
including the U.S. Department of Energy and the EPA, have evaluated or are evaluating various other aspects of hydraulic 
fracturing such as the potential environmental effects of hydraulic fracturing on drinking water and groundwater. On December 
13, 2016, the EPA released a study of the potential adverse effects that hydraulic fracturing may have on water quality and 
public health, concluding that there is scientific evidence that hydraulic fracturing activities potentially can impact drinking 
water resources in the United States under some circumstances.

If new laws or regulations that significantly restrict hydraulic fracturing are adopted, such laws could make it more difficult 

or significantly more costly for our customers to perform fracturing to stimulate production from tight formations. Restrictions 
on hydraulic fracturing could also reduce the volume of crude oil, natural gas or other hydrocarbons that our customers 
produce, and could thereby adversely affect our revenues and results of operations. Compliance with such rules could also 
generally result in additional costs, including increased capital expenditures and operating costs, for us and our customers, 
which could ultimately decrease end-user demand for our services and could have a material adverse effect on our business.

Our produced water disposal operations may be subject to additional regulation and liability or claims of environmental 

damages.

We operate produced water disposal wells which are regulated under the federal SDWA as Class II wells and under state 
laws. State laws and regulations that govern these operations can be more stringent than the SDWA. In addition, the possibility 
exists that stricter laws, regulations or enforcement policies could significantly increase our compliance costs and the cost of 
any remediation that may become necessary. We may also incur material environmental costs and liabilities. Furthermore, our 
insurance may not provide sufficient coverage in the event an environmental claim is made against us. In addition, although the 
disposal wells have received certain governmental regulatory licenses, permits or approvals, this does not shield us from 
potential claims from third parties claiming contamination of their water supply or other environmental damages. Remediation 
of environmental contamination or damages can be extremely costly and such costs, if we are found liable, may have a material 
adverse effect on our business, financial condition and results of operations.

Produced water injection well operations and hydraulic fracturing may cause induced seismicity.

State and federal regulatory agencies recently have focused on a possible connection between hydraulic fracturing related 

activities and the increased occurrence of seismic activity. When caused by human activity, such events are called induced 
seismicity. In a few instances, operators of produced water injection wells in the vicinity of seismic events have been ordered to 
reduce produced water injection volumes or suspend operations. Some state regulatory agencies, including those in Colorado 
and Texas, have modified their regulations to account for induced seismicity. Regulatory agencies at all levels are continuing to 
study the possible linkage between oil and gas activity and induced seismicity. In 2015, the United States Geological Study 
identified eight states, including Colorado, Oklahoma and Texas, with areas of increased rates of induced seismicity that could 
be attributed to fluid injection or oil and gas extraction. The USGS also produced a one-year 2017 induced seismicity model 
that forecast an elevated hazard from induced seismicity in Oklahoma compared to the hazard calculated for seismicity before 
2009. In addition, a number of lawsuits have been filed, most recently in Oklahoma, alleging that produced water disposal well 
operations have caused damage to neighboring properties or otherwise violated state and federal rules regulating waste 
disposal. The Oklahoma Corporation Commission, or OCC, has adopted a plan calling for mandatory reductions in oil and gas 
wastewater disposal well volumes, the implementation of which has involved reductions of injection or shut-ins of disposal 
wells. The OCC has also released guidance to operators in the SCOOP and STACK areas for management of certain seismic 
activity that may be related to hydraulic fracturing activities. These developments could result in additional regulation and 
restrictions on the use of produced water injection wells and hydraulic fracturing. Such regulations and restrictions could have a 
material adverse effect on our business, financial condition and results of operations. 

45

We are exposed to costs associated with lost and unaccounted for volumes. 

A certain amount of natural gas and crude oil may be lost or unaccounted for in normal operations in connection with their 

transportation across a pipeline system. Under our tariffs and contractual arrangements with our customers we are entitled to 
retain a specified volume of natural gas and crude oil in order to compensate us for such lost and unaccounted for volumes, as 
well as the natural gas used to run our natural gas compressor stations, which we refer to collectively as fuel usage. Our 
pipeline tariffs currently contain fuel usage true-up mechanisms. The use of fuel (natural gas, electric and lost and unaccounted 
for gas) trackers on the Rockies Express Pipeline, the TIGT System, and the Trailblazer Pipeline, while minimizing risk over 
time, nevertheless leaves the systems exposed to the possibility of under- or over-collections on an annual basis. The level of 
lost and unaccounted for volumes, and natural gas fuel usage, on our pipeline systems may exceed the natural gas and crude oil 
volumes retained from our customers as compensation for our lost and unaccounted for volumes, and fuel usage, pursuant to 
our tariffs and contractual agreements, and it may be necessary to purchase natural gas or crude oil in the market to make up for 
the difference, which exposes us to commodity price risk. Future exposure to the volatility of natural gas and crude oil prices as 
a result of lost and unaccounted for volume imbalances could have a material adverse effect on our business, financial 
condition, results of operations and ability to make quarterly cash dividends to our Class A shareholders. 

Any significant and prolonged change in or stabilization of natural gas prices could have a negative impact on our 

natural gas storage business.

Historically, natural gas prices have been seasonal and volatile, which has enhanced demand for our storage services. The 

natural gas storage business has benefited from significant price fluctuations resulting from seasonal price sensitivity, which 
impacts the level of demand for our services and the rates we are able to charge for such services. On a system-wide basis, 
natural gas is typically injected into storage between April and October when natural gas prices are generally lower and 
withdrawn during the winter months of November through March when natural gas prices are typically higher. However, the 
market for natural gas may not continue to experience volatility and seasonal price sensitivity in the future at the levels 
previously seen. If volatility and seasonality in the natural gas industry decrease, because of increased production capacity or 
otherwise, then demand for our storage services and the prices that we will be able to charge for those services may decline.

In addition to volatility and seasonality, an extended period of high natural gas prices would increase the cost of acquiring 

base gas and likely place upward pressure on the costs of associated storage expansion activities. Alternatively, an extended 
period of low seasonal volatility in natural gas prices could adversely impact storage values for some period of time until 
market conditions adjust. These commodity price impacts could have a negative impact on our business, financial condition, 
results of operations and ability to make quarterly cash dividends to our Class A shareholders.

Certain portions of our transportation, storage and processing facilities have been in service for several decades. There 

could be unknown events or conditions or increased maintenance or repair expenses and downtime associated with our 
facilities that could have a material adverse effect on our business and results of operations.

Significant portions of our transportation, storage and processing systems have been in service for several decades. The age 

and condition of our facilities could result in increased maintenance or repair expenditures, and any downtime associated with 
increased maintenance and repair activities could materially reduce our revenue. Any significant increase in maintenance and 
repair expenditures or loss of revenue due to the age or condition of our facilities could adversely affect our business and results 
of operations and our ability to make quarterly cash dividends to our Class A shareholders. 

The TEP revolving credit facility and the indentures governing the TEP senior notes contain certain restrictions which 
could adversely affect our business, financial condition, results of operations and ability to make quarterly cash dividends to 
our Class A shareholders.

We are dependent upon certain earnings and cash flow generated by our operations in order to meet our debt service 
obligations. The TEP revolving credit facility, the indenture governing its 4.75% senior notes due 2023 (the "2023 Notes") the 
indenture governing its 5.50% senior notes due 2024 (the "2024 Notes"), and the indenture governing its 5.50% senior notes 
due 2028 (the "2028 Notes") contain, and any future financing agreements may contain, operating and financial restrictions and 
covenants that could restrict our ability to finance future operations or capital needs, or to expand or pursue our business 
activities, which may, in turn, limit our ability to make quarterly cash dividends. For example, the TEP revolving credit facility 
limits TEP's ability and the ability of its restricted subsidiaries to, among other things:

• 

• 

incur or guarantee additional indebtedness;

redeem or repurchase units or pay distributions under certain circumstances;

•  make certain investments and acquisitions;

• 

• 

incur certain liens or permit them to exist;

enter into certain types of transactions with affiliates;

46

•  merge or consolidate with another company; and

• 

transfer, sell or otherwise dispose of assets.

The TEP revolving credit facility also contains covenants requiring TEP to maintain certain financial ratios. Our ability to 
meet those financial ratios and tests can be affected by events beyond our control, and we cannot assure you that TEP will meet 
those ratios and tests. Further, TEP's obligations under the revolving credit facility are (i) guaranteed by TEP and each of its 
existing and subsequently acquired or organized direct or indirect wholly-owned domestic subsidiaries, subject to its ability to 
designate certain subsidiaries as "Unrestricted Subsidiaries," and (ii) secured by a first priority lien on substantially all of the 
present and after acquired property owned by TEP and each guarantor (other than real property interests related to its pipelines). 

Similarly, the indenture governing the 2024 Notes contains covenants that, among other things, limit TEP's ability and the 
ability of its restricted subsidiaries to: (i) incur, assume or guarantee additional indebtedness or issue preferred units; (ii) create 
liens to secure indebtedness; (iii) pay distributions on equity interests, repurchase equity securities or redeem subordinated 
securities; (iv) make investments; (v) restrict distributions, loans or other asset transfers from our restricted subsidiaries; 
(vi) consolidate with or merge with or into, or sell substantially all its properties to, another person; (vii) sell or otherwise 
dispose of assets, including equity interests in subsidiaries; and (viii) enter into transactions with affiliates.

In addition, the indentures governing the 2023 Notes and the 2028 Notes contain covenants that, among other things, limit 
TEP's ability and the ability of its restricted subsidiaries to: (i) create liens to secure indebtedness; (ii) enter into sale-leaseback 
transactions; and (iii) consolidate with or merge with or into, or sell substantially all of its properties to, another person.

The provisions of the TEP revolving credit facility and the indentures governing its senior notes may affect our ability to 

obtain future financing and pursue attractive business opportunities and our flexibility in planning for, and reacting to, changes 
in business conditions. In addition, a failure to comply with the provisions of the TEP revolving credit facility or the indentures 
governing its senior notes, including a failure to meet any of the required financial ratios and tests, could result in a default or 
an event of default that could enable its lenders or the holders of the senior notes to declare the outstanding principal of that 
indebtedness, together with accrued and unpaid interest, to be immediately due and payable, and in the case of the TEP 
revolving credit facility, would prohibit TEP's ability to make distributions. If the payment of the indebtedness under the TEP 
revolving credit facility is accelerated and we are unable to repay the indebtedness in full, the lenders could foreclose on the 
assets pledged by TEP and the guarantors under the TEP revolving credit facility. In that case, these assets may be insufficient 
to repay such indebtedness in full, and our Class A shareholders could experience a partial or total loss of their investment.

Our future indebtedness levels may limit our flexibility to obtain financing and to pursue other business opportunities.

Our level of indebtedness could have important consequences to us, including the following:

• 

• 

our ability to obtain additional financing, if necessary, for working capital, capital expenditures, acquisitions or other 
purposes may be impaired or such financing may not be available on favorable terms;

our funds available for operations, future business opportunities and dividends to Class A shareholders will be reduced 
by that portion of our cash flow required to make interest payments on our indebtedness;

•  we may be more vulnerable to competitive pressures or a downturn in our business or the economy generally; and

• 

our flexibility in responding to changing business and economic conditions may be limited.

Our ability to service our indebtedness depends upon, among other things, our future financial and operating performance, 
which will be affected by prevailing economic conditions and financial, business, regulatory and other factors, some of which 
are beyond our control. If our operating results are not sufficient to service our current or future indebtedness, we will be forced 
to take actions such as reducing dividends, reducing or delaying our business activities, acquisitions, investments or capital 
expenditures, selling assets or seeking additional equity capital. Taking any of these actions is likely to reduce the value of an 
investment in us. Plus, we may not be able to effect any of these actions on satisfactory terms or at all.

Increases in interest rates could adversely impact our Class A share price, our ability to issue equity or incur 
indebtedness for acquisitions or other purposes and our ability to make quarterly cash dividends at our intended levels.

The interest rate on borrowings under the TEP revolving credit facility float based upon one or more of the prime rate, the 
U.S. federal funds rate or LIBOR. As a result, those borrowings, as well as borrowings under possible future credit facilities or 
debt offerings, could be higher than current levels, causing our financing costs to increase accordingly. We do not currently 
hedge the interest rate risk on borrowings under the TEP revolving credit facility. 

47

As with other yield-oriented securities, our Class A share price may be impacted by the level of our cash dividend and 

implied dividend yield. The dividend yield is often used by investors to compare and rank yield-oriented securities for 
investment decision-making purposes. Therefore, changes in interest rates, either positive or negative, may affect the yield 
requirements of investors who invest in our Class A shares, and a rising interest rate environment could have an adverse impact 
on our Class A share price, our ability to issue equity or incur indebtedness for acquisitions or other purposes and our ability to 
maintain or increase quarterly cash dividends on our Class A shares.

Rockies Express has a substantial amount of indebtedness and Rockies Express may not be able to generate a sufficient 

amount of cash flow to meet its debt service obligations.

As of January 31, 2019, Rockies Express had $1.5 billion of senior notes outstanding, of which $750 million will mature 

on April 15, 2020, $250 million will mature in 2038 and $500 million will mature in 2040. In addition, Rockies Express has 
$525 million of outstanding indebtedness pursuant to a term loan facility that provides for a one-time principal payment due on 
the January 7, 2020 maturity date. Further, Rockies Express has a revolving credit facility with $150 million of borrowing 
capacity that matures on January 31, 2020. 

The substantial indebtedness held by Rockies Express could have important consequences. For example, it could:

•  make it more difficult for Rockies Express to satisfy its obligations with respect to its indebtedness;

• 

• 

• 

• 

• 

• 

increase the vulnerability of Rockies Express to general adverse economic and industry conditions;

limit the ability of Rockies Express to obtain additional financing for future working capital, capital expenditures and 
other general business purposes;

require Rockies Express to dedicate a substantial portion of its cash flow from operations to payments on its 
indebtedness, thereby reducing the availability of cash flow for operations and other purposes;

limit its flexibility in planning for, or reacting to, changes in its business and the industry in which Rockies Express 
operates;

place Rockies Express at a competitive disadvantage compared to its competitors that have less indebtedness; and

have a material adverse effect if Rockies Express fails to comply with the covenants in the indenture relating to its 
notes or in the instruments governing its other indebtedness.

The terms of the indentures governing the existing Rockies Express notes do not restrict the amount of additional 
unsecured indebtedness Rockies Express may incur, and the agreements governing its term loan credit facility and revolving 
credit facility permit additional unsecured borrowings. If new indebtedness is added to the current indebtedness levels, these 
related risks could increase.

Rockies Express' ability to make scheduled payments or to refinance its obligations with respect to its indebtedness will 
depend on its financial and operating performance, which, in turn, is subject to prevailing economic conditions and to financial, 
business, and other factors beyond its control. In addition, a significant amount of Rockies Express' revenue in 2018 was 
generated by long-term contracts that expire in 2019 and Rockies Express may not be able to renew or replace expiring 
contracts at favorable rates or on a long-term basis, which may result in lower cash flows in periods subsequent to 2019. We 
cannot assure you that Rockies Express' operating performance, cash flow and capital resources will be sufficient for payment 
of its indebtedness in the future. In the event that Rockies Express is required to dispose of material assets or restructure its 
indebtedness to meet its debt service and other obligations, we cannot assure you as to the terms of any such transaction or how 
soon any such transaction could be completed.

If Rockies Express' cash flow and capital resources are insufficient to fund its debt service obligations, it may be forced to 

sell material assets, obtain additional capital, including through capital contributions from its members, or restructure its 
indebtedness. The payment of additional capital contributions by us to Rockies Express to fund such obligations would reduce 
the amount of cash available to make dividends to our Class A shareholders. 

Rockies Express' term loan credit facility and revolving credit facility contain certain restrictions which could limit its 

financial flexibility and increase its financing costs.

Rockies Express' term loan credit facility and revolving credit facility contain restrictive covenants that may prevent it 

from engaging in various transactions that Rockies Express deems beneficial and that may be beneficial to Rockies Express. 
The term loan credit facility and the revolving credit facility generally require Rockies Express to comply with various 
affirmative and negative covenants, including a limit on the leverage ratio (as defined in each credit agreement) of Rockies 
Express and restrictions on:

• 

incurring secured indebtedness;

48

• 

• 

• 

entering into mergers, consolidations and sales of assets;

granting liens;

entering into transactions with affiliates; and

•  making restricted payments.

Instruments governing any future indebtedness at Rockies Express may contain similar or more restrictive provisions. 

Rockies Express' ability to respond to changes in business and economic conditions and to obtain additional financing, if 
needed, may be restricted.

We do not own most of the land on which our assets are located, which could disrupt our operations and subject us to 

increased costs.

We do not own in fee but rather have leases, easements, rights-of-way, permits, surface use agreements, and licenses for 
most of the land on which our assets are located, and we are therefore subject to the possibility of more onerous terms and/or 
increased costs to retain necessary land use if we do not have valid interests in the land, if such interests in the land lapse or 
terminate or if our facilities are not properly located within the boundaries of such interests in the land. For example, the West 
Frenchie Draw treating facility is located on land leased from the Wyoming Board of Land Commissioners pursuant to a 
contract that can be terminated at any time. Although many of these rights are perpetual in nature, we occasionally obtain the 
right to construct and operate pipelines on other owners' land for a specific period of time. If we were to be unsuccessful in 
renegotiating our leases, easements, rights-of-way, permits, surface use agreements and licenses, we might incur increased costs 
to maintain our assets, which could have a material adverse effect on our business, results of operations, financial condition and 
ability to make quarterly cash dividends to our Class A shareholders. In addition, we are subject to the possibility of increased 
costs under our rental agreements with landowners, primarily through rental increases and renewals of expired agreements.

Some leases, easements, rights-of-way, permits, surface use agreements and licenses for our assets are shared with other 
pipeline systems and other assets owned by third parties. We or owners of the other pipeline systems or assets may not have 
commenced or concluded eminent domain proceedings for some rights-of-way. In some instances, lands over which leases, 
easements, rights-of-way, permits, surface use agreements and licenses have been obtained are subject to prior liens which have 
not been subordinated to the grants to us.

Our interstate natural gas pipeline systems have federal eminent domain authority in certain instances. To the extent federal 

eminent domain authority is not available, the availability of eminent domain for future crude oil or natural gas pipeline 
expansions varies from state to state, depending upon the laws of the particular state and in some states it may not be available 
at all. Regardless, we must compensate landowners for the use of their property, which may include any loss of value to the 
remainder of their property not being used by us, which are sometimes referred to as "severance damages." Severance damages 
are often difficult to quantify and their amount can be significant. In eminent domain actions, such compensation may be 
determined by a court. Our inability to exercise the power of eminent domain could negatively affect our business if we were to 
lose the right to use or occupy the property on which our crude oil or natural gas pipeline systems are located.

A shortage of skilled labor in the midstream industry could reduce labor productivity and increase costs, which could 

have a material adverse effect on our business and results of operations.

The transportation, storage and terminalling of crude oil, the transportation, storage and processing of natural gas, and the 

transportation, gathering, recycling and disposal of water requires skilled laborers in multiple disciplines such as equipment 
operators, mechanics and engineers, among others. If we experience shortages of skilled labor in the future, our labor and 
overall productivity or costs could be materially and adversely affected. If our labor prices increase or if we experience 
materially increased health and benefit costs for employees, our results of operations could be materially and adversely 
affected.

If we fail to develop or maintain an effective system of internal controls, we may not be able to accurately report our 

financial results or prevent fraud. As a result, shareholders could lose confidence in our financial reporting, which would 
harm our business and the trading price of our Class A shares.

Effective internal controls are necessary for us to provide reliable financial reports, prevent fraud and operate successfully 

as a publicly traded partnership. If we cannot provide reliable financial reports or prevent fraud, our reputation and operating 
results will be harmed. We cannot be certain that our efforts to develop and maintain our internal controls will be successful, 
that we will be able to maintain adequate controls over our financial processes and reporting in the future or that we will be able 
to comply with our obligations under Section 404 of the Sarbanes Oxley Act of 2002. Any failure to develop or maintain 
effective internal controls, or difficulties encountered in implementing or improving our internal controls, could harm our 
operating results or cause us to fail to meet our reporting obligations. Ineffective internal controls could also cause investors to 
lose confidence in our reported financial information, which would likely have a negative effect on the trading price of our 
Class A shares.

49

New technologies, including those involving recycling of produced water or the replacement of water in fracturing 

fluid, may adversely affect our future results of operations and financial condition.

The produced water disposal industry is subject to the introduction of new waste treatment and disposal techniques and 
services using new technologies including those involving recycling of produced water, some of which may be subject to patent 
protection. As competitors and others use or develop new technologies or technologies comparable to our water business 
services in the future, we may lose market share or be placed at a competitive disadvantage. For example, some companies 
have successfully used propane as the fracturing fluid instead of water. Further, we may face competitive pressure to implement 
or acquire certain new technologies at a substantial cost. Some of our competitors may have greater financial, technical and 
personnel resources than we do, which may allow them to gain technological advantages or implement new technologies before 
we can. Additionally, we may be unable to implement new technologies or products at all, on a timely basis or at an acceptable 
cost. New technology could also make it easier for our customers to vertically integrate their operations or reduce the amount of 
waste produced in oil and natural gas drilling and production activities, thereby reducing or eliminating the need for third-party 
disposal. Limits on our ability to effectively use or implement new technologies, including in its water business services, may 
have a material adverse effect on our business, financial condition and results of operations.

Rockies Express is a joint venture and our investment could be adversely affected by our lack of sole decision-making 

authority.

We do not control Rockies Express through our ownership of a 75% membership interest. Under the limited liability 
company agreement of Rockies Express, as amended, substantially all matters are decided by a vote of 80% of the membership 
interests, other than certain fundamental decisions that require a vote of 90% of the membership interests. As a result, all the 
decisions of the Rockies Express members effectively require unanimous approval of us and the other member of Rockies 
Express, Phillips 66. Thus, our investment in Rockies Express involves risks that are not present when we are able to exercise 
control over an asset, including the possibility that the unaffiliated third-party member of Rockies Express might become 
bankrupt, fail to fund its required capital contributions or otherwise attempt to make business decisions with respect to Rockies 
Express that we do not believe are in its best interest. Moreover, under the Rockies Express limited liability company 
agreement, we are required to provide certain capital contributions in order to fund expenditures contemplated by Rockies 
Express' annual budget, and may be required to provide capital contributions under certain circumstances specified in the 
Rockies Express limited liability company agreement if determined to be reasonably necessary by a vote of Rockies Express' 
members.

As an unaffiliated third-party member of Rockies Express, Phillips 66 may have economic or other business interests or 

goals that are inconsistent with our business interests or goals. The Rockies Express limited liability company agreement 
expressly permits Rockies Express members to make decisions with respect to their ownership interest without taking into 
account the interests of Rockies Express or any other member of Rockies Express. 

Our membership interest in Rockies Express is subject to a right of first refusal, which may make it more difficult to sell 

our interest in Rockies Express in the future.

Under the terms of Rockies Express' limited liability company agreement, if any member desires to transfer its membership 

interest to an unaffiliated third party, each other member first has a right to purchase its proportionate share of the membership 
interest being sold. If we desire to sell all or any portion of our interest in Rockies Express to an unaffiliated third-party in the 
future, we will be required to first offer the sale of our membership interest to the other members, who will have 30 days to 
elect to purchase their proportionate interest before any sale or transfer to a third party may be consummated. This requirement 
could make it difficult for us to sell our interest in Rockies Express.

Risks Inherent in an Investment in Us 

Our quarterly cash dividends to our Class A shareholders are not cumulative.

Our quarterly cash dividends to our Class A shareholders are not cumulative. Consequently, if cash dividends on our 
Class A shares are not paid with respect to any fiscal quarter then our Class A shareholders will not be entitled to receive that 
quarter's payments in the future.

Our partnership agreement requires that we distribute our available cash on a quarterly basis, which could limit our 

ability to grow and make acquisitions.

Our partnership agreement requires us to distribute our available cash to our Class A shareholders on a quarterly basis. 
Accordingly, we will rely primarily upon external financing sources, including commercial bank borrowings and the issuance 
of debt and equity securities, to fund our acquisitions and expansion capital expenditures. As a result, to the extent we are 
unable to finance growth externally, our cash distribution policy will significantly impair our ability to grow.

50

In addition, because we intend to dividend our available cash, our growth may not be as fast as that of businesses that 
reinvest their available cash to expand ongoing operations. To the extent we issue additional shares in connection with any 
acquisitions or expansion capital expenditures, the payment of dividends on those additional shares may increase the risk that 
we will be unable to maintain or increase our per share dividend level. There are no limitations in our partnership agreement on 
our ability to issue additional shares, including shares ranking senior to the Class A shares. The incurrence of additional 
commercial borrowings or other indebtedness to finance our growth strategy would result in increased interest expense, which 
in turn may impact the cash available for dividends to our Class A shareholders.

If we issue additional Class A shares without canceling an equivalent number of Class B shares, Tallgrass Equity incurs 

additional debt, we incur debt or we or Tallgrass Equity are required to pay taxes, the payment of distributions on those 
additional Class A shares or interest on that debt or payment of such taxes could increase the risk that we will be unable to 
maintain or increase our cash dividend levels.

Restrictions in TEP's and Rockies Express' respective credit facilities and the indentures governing TEP's and Rockies 
Express' existing senior notes could limit Tallgrass Equity's ability to make distributions to us, thereby limiting our ability to 
make quarterly cash dividends to our Class A shareholders. Any credit facility we enter into in the future could pose similar 
restrictions that would further limit our ability to make quarterly cash dividends.

TEP's and Rockies Express' respective credit facilities and the indentures governing TEP's and Rockies Express' existing 
senior notes contain various operating and financial restrictions and covenants. Tallgrass Equity's, TEP's and Rockies Express' 
respective ability to comply with these restrictions and covenants may be affected by events beyond their control, including 
prevailing economic, financial and industry conditions. If TEP or Rockies Express are unable to comply with these restrictions 
and covenants, any indebtedness under these credit facilities and indentures may become immediately due and payable and 
TEP's and Rockies Express' respective lenders' commitment to make further loans under their revolving credit facilities may 
terminate. We might not have, or be able to obtain, sufficient funds to make these accelerated payments.

We may enter into a credit facility in the future that would impose similar restrictions to those discussed above. In addition, 

our payment of principal and interest on any future indebtedness would reduce our cash available for dividends to our Class A 
shares.

For more information regarding the TEP revolving credit facility and the indentures governing TEP's existing senior notes, 

please see the section above "—The TEP revolving credit facility and the indentures governing the TEP senior notes contain 
certain restrictions which could adversely affect our business, financial condition, results of operations and ability to make 
quarterly cash dividends to our Class A shareholders." For more information regarding Rockies Express' revolving credit 
facility and the indentures governing Rockies Express' existing senior notes, please see the sections above "—Rockies Express 
has a substantial amount of indebtedness and Rockies Express may not be able to generate a sufficient amount of cash flow to 
meet its debt service obligations." and "—Rockies Express' term loan credit facility and revolving credit facility contain certain 
restrictions which could limit its financial flexibility and increase its financing costs."

Our shareholders do not vote in the election of our general partner's directors. The Exchange Right Holders own a 

sufficient number of shares to allow them to prevent the removal of our general partner.

Our shareholders have only limited voting rights on matters affecting our business and, therefore, limited ability to 

influence management's decisions regarding our business. The board of directors of our general partner, including our 
independent directors, is currently designated and elected by Tallgrass Energy Holdings or its designees. Our shareholders do 
not have the ability to elect our general partner or the members of the board of directors of our general partner.

In addition, if our Class A shareholders are dissatisfied with the performance of our general partner, they have little ability 

to remove our general partner. Our general partner may not be removed except by vote of the holders of at least 80% of our 
outstanding shares, voting together as a single class. The Exchange Right Holders own all of our Class B shares, which 
collectively represents 44.21% of our total outstanding Class A and Class B shares. This ownership level enables the Exchange 
Right Holders to prevent our general partner's removal.

As a result of these provisions, the price at which our shares trade may be lower because of the absence or reduction of a 

takeover premium in the trading price.

Our general partner may cause us to issue additional Class A shares or other equity securities, including equity 

securities that are senior to our Class A shares, without your approval, which may adversely affect you.

Our general partner may cause us to issue an unlimited number of additional Class A shares, or other equity securities of 
equal rank with the Class A shares, without shareholder approval. In addition, we may issue an unlimited number of shares that 
are senior to our Class A shares in right of dividend, liquidation and voting. Except for Class A shares issued in connection with 
the exercise by any Exchange Right Holder of its right to exchange a Class B share for a Class A share (the "Exchange Right"), 
each of which will result in the cancellation of an equivalent number of Class B shares and therefore have no effect on the total 

51

number of outstanding shares, the issuance of additional Class A shares, or other equity securities of equal or senior rank, may 
have the following effects:

• 

• 

• 

• 

each shareholder's proportionate ownership interest in us may decrease;

the amount of cash available for dividends on each Class A share may decrease;

the relative voting strength of each previously outstanding Class A share may be diminished;

the date upon which we begin paying material U.S. federal income taxes, or upon which a material portion of our 
dividends constitute taxable dividend income for U.S. federal income tax purposes, could be accelerated; and

• 

the market price of the Class A shares may decline.

You may not have limited liability if a court finds that shareholder action constitutes control of our business.

Under Delaware law, you could be held liable for our obligations to the same extent as a general partner if a court 

determined that the right or the exercise of the right by our shareholders (who hold limited partner interests despite the fact that 
we use the term "shareholder" in this Annual Report) as a group to remove or replace our general partner, to approve some 
amendments to the partnership agreement or to take other action under our partnership agreement constituted participation in 
the "control" of our business. Additionally, the limitations on the liability of holders of limited partner interests for the liabilities 
of a limited partnership have not been clearly established in many jurisdictions.

Furthermore, Section 17-607 of the Delaware Revised Uniform Limited Partnership Act provides that, under some 
circumstances, a shareholder may be liable to us for the amount of a dividend for a period of three years from the date of the 
dividend.

Our partnership agreement restricts the rights of shareholders owning 20% or more of our shares.

Our shareholders' voting rights are restricted by the provision in our partnership agreement generally providing that any 
shares held by a person or group that owns 20% or more of any class of shares then outstanding, other than our general partner, 
the Exchange Right Holders or their respective affiliates and persons who acquired such shares with the prior approval of our 
general partner's board of directors, cannot be voted on any matter. In addition, our partnership agreement contains provisions 
limiting the ability of our shareholders to call meetings or to acquire information about our operations, as well as other 
provisions limiting our shareholders' ability to influence the manner or direction of our management. As a result, the price at 
which our Class A shares trade may be lower because of the absence or reduction of a takeover premium in the trading price.

Future sales of our Class A shares in the public market, including sales of Class A shares by the Exchange Right 

Holders after the exercise of the Exchange Right, could reduce our Class A share price, and any additional capital raised by 
us through the sale of equity or convertible securities may dilute your ownership in us.

Subject to certain limitations and exceptions, the Exchange Right Holders may cause the exchange of their Tallgrass Equity 
units (together with a corresponding number of Class B shares) for Class A shares (on a one-for-one basis, subject to customary 
conversion rate adjustments for equity splits and reclassification and other similar transactions) and then sell those Class A 
shares. For example, in November 2016 certain participating Exchange Right Holders sold 10,350,000 Class A Shares in a 
secondary offering. Further, in accordance with a shareholder and registration rights agreement entered into with the Exchange 
Right Holders, we have registered the resale of 125,291,659 Class A shares issuable upon exercise of the Exchange Right 
pursuant to our Form S-3 (File No. 333-225382) filed with the SEC on June 1, 2018, which became effective June 13, 2018. 

We may also issue additional Class A shares or convertible securities in subsequent public or private offerings. We cannot 
predict the size of future issuances of our Class A shares or securities convertible into Class A shares or the effect, if any, that 
future issuances and sales of our Class A shares, including sales of Class A shares by the Exchange Right Holders after the 
exercise of the Exchange Right, will have on the market price of our Class A shares. Sales of substantial amounts of our Class A 
shares (including shares issued in connection with an acquisition), or the perception that such sales could occur, may adversely 
affect prevailing market prices of our Class A shares.

Tallgrass Energy Holdings currently has sole authority to elect the board of directors of our general partner, and 

following consummation of the Blackstone Acquisition, BIP will have such authority.

Tallgrass Energy Holdings currently has the ability to elect all of the members of our board of directors. In addition, 
Tallgrass Energy Holdings is able to determine the outcome of nearly all matters requiring shareholder approval, including 
certain mergers and other material transactions, and is able to cause or prevent a change in the composition of our board of 
directors or a change in control of our company that could deprive our shareholders of an opportunity to receive a premium for 
their Class A shares as part of a sale of our company. Certain of the Exchange Right Holders currently own 100% of the voting 
interests in Tallgrass Energy Holdings and EMG, Kelso and Tallgrass KC each have the right to designate two members to the 
six-person board of managers of Tallgrass Energy Holdings for so long as they maintain certain ownership percentages in 

52

Tallgrass Energy Holdings. Following consummation of the Blackstone Acquisition, BIP will own 100% of the membership 
interests in our general partner and will have the ability to elect all of the members of the board of directors of our general 
partner, subject to certain contractual rights to designate directors, including those granted to our chief executive officer, Mr. 
Dehaemers, to (i) designate one individual from the three specified executive officers to serve as a member of the board of 
directors of our general partner until December 31, 2020, for so long as Mr. Dehaemers remains a member of the board of 
directors of our general partner, and (ii) under certain circumstances, designate one individual to serve as an independent 
member of the board of directors of our general partner, for so long as Mr. Dehaemers is employed as the chief executive 
officer of our general partner.  Prior to the Blackstone Acquisition, Tallgrass Energy Holdings continues to be able to, and 
following consummation of the Blackstone Acquisition, BIP will be able to, strongly influence all matters requiring shareholder 
approval, regardless of whether or not shareholders believe that the transaction is in their own best interests.

A valuation allowance on our deferred tax asset could reduce our earnings.

A significant deferred tax asset was recorded as a result of certain reorganization transactions completed in connection with 

the TGE IPO. In November 2016, we completed a Secondary Offering of Class A shares, which resulted in the recognition of 
an additional deferred tax asset. The aggregate deferred tax asset was $273.5 million as of December 31, 2018. GAAP requires 
that a valuation allowance must be established for deferred tax assets when it is more likely than not that they will not be 
realized. If we were to determine that a valuation allowance was appropriate for our deferred tax asset, we would be required to 
take an immediate charge to earnings with a corresponding reduction of partners' equity and increase in balance sheet leverage 
as measured by debt to total capitalization.

The NYSE does not require a limited partnership like us to comply with certain of its corporate governance 

requirements.

Because we are a limited partnership, the NYSE does not require our general partner to have a majority of independent 
directors on its board of directors. The NYSE also does not require our general partner to establish a compensation committee 
or a nominating and corporate governance committee. Accordingly, our shareholders do not have the same protections afforded 
to certain corporations that are subject to all the NYSE corporate governance requirements. In addition, as a limited partnership, 
we are not required to seek shareholder approval for issuances of Class A shares including issuances in excess of 20% of 
outstanding equity securities, or for issuances of equity to certain affiliates.

We may incur liability as a result of our ownership of TEP's general partner.

Under Delaware law, a general partner of a limited partnership is generally liable for the debts and liabilities of the 
partnership for which it serves as general partner, subject to the terms of any indemnification agreements contained in the 
partnership agreement and except to the extent the partnership's contracts are non-recourse to the general partner. As a result of 
our structure, we indirectly own and control the general partner of TEP. To the extent the indemnification provisions in TEP's 
partnership agreement or non-recourse provisions in our contracts are not sufficient to protect TEP GP from such liability, we 
may in the future incur liabilities as a result of our indirect ownership of TEP's general partner. Please read the section entitled 
"—Risks Related to Conflicts of Interest."

Risks Related to Conflicts of Interest

Our existing organizational structure and the relationships among us, our general partner, Tallgrass Energy Holdings, the 
owners of Tallgrass Energy Holdings, including the Exchange Right Holders, and their affiliated entities present the potential 
for conflicts of interest. Moreover, additional conflicts of interest may arise in the future among us and the entities affiliated 
with any general partner or similar interests we acquire.

Conflicts of interest may arise as a result of our organizational structure and the relationships among us, our general 

partner, and its direct and indirect owners, which include Tallgrass Energy Holdings, the owners of Tallgrass Energy 
Holdings, including the Exchange Right Holders, and their affiliated entities prior to the Blackstone Acquisition, and BIP, 
GIC SI and their affiliated entities following consummation of the Blackstone Acquisition.

Our partnership agreement defines the duties of our general partner (and, by extension, its officers and directors). Our 
general partner's board of directors or its conflicts committee has authority on our behalf to resolve any conflict involving us 
and they have broad latitude to consider the interests of all parties to the conflict.

Conflicts of interest may arise between us and our shareholders, on the one hand, and our general partner and its direct and 

indirect owners, on the other hand, which include Tallgrass Energy Holdings and the Exchange Right Holders, and affiliated 
entities prior to the Blackstone Acquisition, and BIP, GIC SI and their affiliated entities following consummation of the 
Blackstone Acquisition. The resolution of these conflicts may not always be in our best interest or that of our shareholders.

53

Certain of the Exchange Right Holders own 100% of the voting interests in Tallgrass Energy Holdings and the 

Exchange Right Holders control all of our Class B shares, which represents approximately 44.21% of the combined voting 
power of our Class A and Class B shares.

As of February 8, 2019, certain of the Exchange Right Holders own 100% of the voting interests in Tallgrass Energy 

Holdings and the Exchange Right Holders hold Class B shares representing approximately 44.21% of the combined voting 
power of our Class A and Class B shares. Although each of the Exchange Right Holders are entitled to act separately in their 
own respective interests with respect to their ownership interest in Tallgrass Energy Holdings and us, certain of the Exchange 
Right Holders collectively have the ability to elect all the members of Tallgrass Energy Holdings' board of managers, each of 
whom also serves as a member of the board of directors of our general partner. So long as any of the Exchange Right Holders 
continue to own a significant amount of the voting interests in Tallgrass Energy Holdings, they will continue to be able to 
control our management and affairs. Following consummation of the Blackstone Acquisition, BIP will own 100% of the 
membership interests in our general partner, and will, subject to certain contractual restrictions, control approximately 44% of 
the combined voting power of our Class A shares and Class B shares. 

Our partnership agreement replaces our general partner's fiduciary duties to holders of our Class A shares with 

contractual standards governing its duties.

Our partnership agreement contains provisions that eliminate the fiduciary standards to which our general partner would 

otherwise be held by state fiduciary duty law and replaces those duties with several different contractual standards. For 
example, our partnership agreement permits our general partner to make a number of decisions in its individual capacity, as 
opposed to in its capacity as our general partner, free of any duties to us and our shareholders other than the implied contractual 
covenant of good faith and fair dealing, which means that a court will enforce the reasonable expectations of the shareholders 
where the language in the partnership agreement does not provide for a clear course of action. This provision entitles our 
general partner to consider only the interests and factors that it desires and relieves it of any duty or obligation to give any 
consideration to any interest of, or factors affecting, us, our affiliates or our shareholders. Examples of decisions that our 
general partner may make in its individual capacity include:

• 

how to allocate business opportunities among us and its affiliates;

•  whether to exercise its limited call right;

•  whether to seek approval of the resolution of a conflict of interest by the conflicts committee of the board of directors 

of our general partner;

• 

how to exercise its voting rights with respect to the units it owns; and

•  whether or not to consent to any merger, consolidation or conversion of the partnership or amendment to the 

partnership agreement.

In addition, our partnership agreement provides that any construction or interpretation of our partnership agreement and 

any action taken pursuant thereto or any determination, in each case, made by our general partner in good faith, shall be 
conclusive and binding on all shareholders.

By purchasing shares, you agree to become bound by the provisions in the partnership agreement, including the provisions 

discussed above.

Our partnership agreement restricts the remedies available to holders of our Class A shares for actions taken by our 

general partner that might otherwise constitute breaches of fiduciary duty. 

Our partnership agreement contains provisions that restrict the remedies available to shareholders for actions taken by our 

general partner that might otherwise constitute breaches of fiduciary duty under state fiduciary duty law. For example, our 
partnership agreement provides that: 

•  whenever our general partner, the board of directors of our general partner or any committee thereof (including the 

conflicts committee) makes a determination or takes, or declines to take, any other action in their respective capacities, 
our general partner, the board of directors of our general partner and any committee thereof (including the conflicts 
committee), as applicable, is required to make such determination, or take or decline to take such other action, in good 
faith, meaning that it subjectively believed that the decision was in the best interests of our partnership, and, except as 
specifically provided by our partnership agreement, will not be subject to any other or different standard imposed by 
our partnership agreement, Delaware law, or any other law, rule or regulation, or at equity; 

• 

our general partner will not have any liability to us or our shareholders for decisions made in its capacity as a general 
partner so long as such decisions are made in good faith; 

54

• 

• 

our general partner and its officers and directors will not be liable for monetary damages to us or our limited partners 
resulting from any act or omission unless there has been a final and non-appealable judgment entered by a court of 
competent jurisdiction determining that our general partner or its officers and directors, as the case may be, acted in 
bad faith or engaged in fraud or willful misconduct or, in the case of a criminal matter, acted with knowledge that the 
conduct was criminal; and 

our general partner will not be in breach of its obligations under the partnership agreement (including any duties to us 
or our shareholders) if a transaction with an affiliate or the resolution of a conflict of interest is: 

approved by the conflicts committee of the board of directors of our general partner (although our general 
partner is not obligated to seek such approval); 

approved by the vote of a majority of the outstanding voting shares, excluding any shares owned by our 
general partner and its affiliates; 

determined by the board of directors of our general partner to be on terms no less favorable to us than those 
generally being provided to or available from unrelated third parties; or 

determined by the board of directors of our general partner to be fair and reasonable to us, taking into account 
the totality of the relationships among the parties involved, including other transactions that may be 
particularly favorable or advantageous to us. 

In connection with a situation involving a transaction with an affiliate or a conflict of interest, any determination by our 
general partner or the conflicts committee must be made in good faith. If an affiliate transaction or the resolution of a conflict of 
interest is not approved by our shareholders or the conflicts committee and the board of directors of our general partner 
determines that the resolution or course of action taken with respect to the affiliate transaction or conflict of interest satisfies 
either of the standards set forth in the last two bullets above, then it will be presumed that, in making its decision, the board of 
directors acted in good faith, and in any proceeding brought by or on behalf of any limited partner or the partnership 
challenging such determination, the person bringing or prosecuting such proceeding will have the burden of overcoming such 
presumption. 

Our general partner's affiliates and Tallgrass Energy Holdings may compete with us.

Our partnership agreement provides that our general partner is restricted from engaging in any business activities other 
than acting as our general partner and those activities incidental to its ownership of interests in us. The restrictions contained in 
our general partner's limited liability company agreement are subject to a number of exceptions. For example, affiliates of our 
general partner, including Tallgrass Energy Holdings, the Exchange Right Holders, and their respective affiliates, including 
Kelso and EMG, are not prohibited from engaging in other businesses or activities that might be in direct competition with us.

Our general partner has a call right that may require you to sell your Class A shares at an undesirable time or price.

If at any time more than 80% of our outstanding shares (including Class A shares issuable upon the exchange of Class B 
shares) are owned by our general partner, Tallgrass Energy Holdings or their respective affiliates, our general partner has the 
right (which it may assign to any of its affiliates, Tallgrass Energy Holdings or us), but not the obligation, to acquire all, but not 
less than all, of the remaining Class A shares held by public shareholders at a price equal to the greater of (x) the highest cash 
price paid by our general partner, Tallgrass Energy Holdings, or their respective affiliates for any shares purchased within the 
90 days preceding the date on which our general partner first mails notice of its election to purchase those shares and (y) the 
current market price calculated in accordance with our partnership agreement as of the date three business days before the date 
the notice is mailed. As a result, you may be required to sell your Class A shares at an undesirable time or price and may not 
receive any return of or on your investment. You may also incur a tax liability upon a sale of your Class A shares.

Tax Risks 

The tax treatment of TEP depends on it not being subject to a material amount of entity-level taxation by individual 
states. If TEP becomes subject to material additional amounts of entity-level taxation for state tax purposes, it would reduce 
the amount of cash available for dividends to us and increase the portion of our dividends treated as taxable dividends.

We own a 55.79% membership interest in Tallgrass Equity, which directly and indirectly owns all of the partnership 
interests in TEP. Accordingly, the value of our indirect investment in TEP, as well as the anticipated after-tax economic benefit 
of an investment in our Class A shares, depends largely on TEP being treated as a partnership for income tax purposes.

Several states are evaluating ways to subject partnerships to entity-level taxation through the imposition of state income, 

franchise and other forms of taxation. Imposition of such a tax on TEP by any state will reduce the cash available for 
distributions to TEP unitholders, likely causing a substantial reduction in the value of our Class A shares.

55

 
 
 
 
We may incur substantial corporate income tax liabilities on our allocable share of TEP income.

We are classified as a corporation for U.S. federal income tax purposes and, in most states in which TEP does business, for 

state income tax purposes. To the extent that TEP allocates to us net taxable income in any year, current law provides that we 
will be subject to U.S. federal income tax at a rate of 21%, and to state income tax at rates that vary from state to state. The 
amount of cash available for dividends to you will be reduced by the amount of any such income taxes payable by us for which 
we establish reserves.

Compliance with and changes in tax laws could adversely affect our performance. 

We are subject to extensive tax laws and regulations, including federal and state income tax laws and transactional tax laws 
such as excise, sales/use, payroll, franchise and ad valorem tax laws. New tax laws and regulations and changes in existing tax 
laws and regulations are continuously being enacted that could result in increased tax expenditures in the future. Further, taxing 
authorities may change their application of existing taxes, so that additional entities or transactions may become subject to an 
existing tax. Many of these tax liabilities are subject to audits by the respective taxing authority. These audits may result in 
additional tax payments, as well as interest and penalties. In one such audit, Rockies Express has appealed an excise tax 
assessment on the gross receipts from certain transactions issued by the Ohio Department of Taxation. If the appeal is 
unsuccessful, Rockies Express may be subject to substantial additional excise taxes in the future, and imposition of such excise 
taxes could reduce the cash available for dividends to our Class A shareholders.

If the IRS makes audit adjustments to TEP's income tax returns for tax years beginning after 2017, it may collect any 

resulting taxes (including any applicable penalties and interest) directly from TEP, in which case TEP may require its 
unitholders and former unitholders to reimburse it for such taxes (including any applicable penalties or interest) or, if TEP 
is required to bear such payment, TEP's cash available for distribution to TEP's unitholders might be substantially reduced.

If the IRS makes audit adjustments to TEP's income tax returns for tax years beginning after 2017, it may collect any 
resulting taxes (including any applicable penalties and interest) directly from TEP. TEP will generally have the ability to shift 
any such tax liability to its general partner and its unitholders in accordance with their interests in TEP during the year under 
audit, but there can be no assurance that TEP will be able to (or will choose to) do so under all circumstances. If TEP is required 
to make payments of taxes, penalties and interest resulting from audit adjustments, it may require its unitholders and former 
unitholders to reimburse it for such taxes (including any applicable penalties or interest) or, if TEP is required to bear such 
payment, its cash available for distribution to its unitholders might be substantially reduced.

Taxable gain or loss on the sale of our Class A shares could be more or less than expected.

If a holder sells our Class A shares, the holder will recognize a gain or loss equal to the difference between the amount 

realized and the holder's tax basis in those Class A shares. To the extent that the amount of our dividends exceeds our current 
and accumulated earnings and profits, the dividends will be treated as a tax-free return of capital and will reduce a holder's tax 
basis in the Class A shares. Because our dividends in excess of our earnings and profits decrease a holder's tax basis in Class A 
shares, such excess dividends will result in a corresponding increase in the amount of gain, or a corresponding decrease in the 
amount of loss, recognized by the holder upon the sale of the Class A shares.

Our current tax treatment may change, which could affect the value of our Class A shares or reduce our cash available 

for dividends.

Changes in U.S. federal income tax law relating to our tax treatment as a corporation could result in (i) our being subject to 

additional taxation at the entity level with the result that we would have less cash available for dividends and (ii) a greater 
portion of our dividends being treated as taxable dividends. Moreover, we are subject to tax in numerous jurisdictions. Changes 
in current law in these jurisdictions, particularly relating to the treatment of deductions attributable to acquisitions of interests in 
Tallgrass Equity, could result in our being subject to additional taxation at the entity level with the result that we would have 
less cash available for dividends.

Any decrease in our Class A share price could adversely affect our amount of cash available for dividends.

Changes in certain market conditions may cause our Class A share price to decrease. If the Exchange Right Holders 
exercise their Exchange Right when our Class A share price is less than the price at which the Class A shares were sold in the 
TGE IPO, the ratio of our income tax deductions to gross income would decline. This decline could result in our being subject 
to tax sooner than expected, our tax liability being greater than expected, or a greater portion of our dividends being treated as 
taxable dividends.

56

The IRS Form 1099-DIV that you receive from your broker may over-report your dividend income with respect to our 
shares for U.S. federal income tax purposes, and failure to report your dividend income in a manner consistent with the IRS 
Form 1099-DIV that you receive from your broker may cause the IRS to assert audit adjustments to your U.S. federal 
income tax return. If you are a non-U.S. holder of our shares, your broker or other withholding agent may overwithhold 
taxes from dividends paid to you, in which case you generally would have to timely file a U.S. tax return or an appropriate 
claim for refund in order to claim a refund of the overwithheld taxes.

Dividends we pay with respect to our Class A shares will constitute "dividends" for U.S. federal income tax purposes only 
to the extent of our current and accumulated earnings and profits. Dividends we pay in excess of our earnings and profits will 
not be treated as "dividends" for U.S. federal income tax purposes; instead, they will be treated first as a tax-free return of 
capital to the extent of your tax basis in your shares and then as capital gain realized on the sale or exchange of such shares. We 
may be unable to timely determine the portion of our dividends that is a "dividend" for U.S. federal income tax purposes.

If you are a U.S. holder of our Class A shares, the IRS Form 1099-DIV may not be consistent with our determination of the 

amount that constitutes a "dividend" to you for U.S. federal income tax purposes or you may receive a corrected IRS Form 
1099-DIV (and you may therefore need to file an amended federal, state or local income tax return). We will attempt to timely 
notify you of available information to assist you with your income tax reporting (such as posting the correct information on our 
website). However, the information that we provide to you may be inconsistent with the amounts reported to you by your 
broker on IRS Form 1099-DIV, and the IRS may disagree with any such information and may make audit adjustments to your 
tax return.

If you are a non-U.S. holder of our Class A shares, "dividends" for U.S. federal income tax purposes will be subject to 

withholding of U.S. federal income tax at a 30% rate (or such lower rate as may be specified by an applicable income tax 
treaty) unless the dividends are effectively connected with your conduct of a U.S. trade or business. In the event that we are 
unable to timely determine the portion of our dividends that is a "dividend" for U.S. federal income tax purposes, or your 
broker or withholding agent chooses to withhold taxes from dividends in a manner inconsistent with our determination of the 
amount that constitutes a "dividend" for such purposes, your broker or other withholding agent may overwithhold taxes from 
dividends paid to you. In such a case, you generally would have to timely file a U.S. tax return or an appropriate claim for 
refund in order to obtain a refund of the overwithheld tax.

We expect that our ability to use net operating losses arising prior to the TEP Merger to offset future income will be 

limited as a result of the TEP Merger, and our ability to use net operating losses arising after the TEP Merger to offset 
future income may be limited.

We expect that our ability to use any net operating losses ("NOLs") generated by us prior to the TEP Merger to offset 
future income will be limited due to experiencing an "ownership change" as defined under Section 382 of the Internal Revenue 
Code of 1986, as amended (the "Code"), as a result of the TEP Merger. Our ability to use NOLs arising after the TEP Merger to 
offset future income may be substantially limited if we were to experience another ownership change.

In general, an ownership change occurs if our "5-percent shareholders," as defined under Section 382 of the Code, 
including certain groups of persons treated as 5-percent shareholders, collectively increased their ownership in Class A shares 
by more than 50 percentage points over a rolling three-year period. An ownership change can occur as a result of a public 
offering of Class A shares, as well as through secondary market purchases of Class A shares and certain types of reorganization 
transactions. As a result of the exchange of TEP common units for Class A shares in the TEP Merger, we expect that the TEP 
Merger caused us to experience an ownership change.

A corporation (including any entity such as us that is treated as a corporation for U.S. federal income tax purposes) that 
experiences an ownership change will generally be subject to an annual limitation on the use of its pre-ownership change NOLs 
(and certain other losses and credits) equal to the equity value of the corporation immediately before the ownership change, 
multiplied by the long-term tax-exempt rate (as determined by the Internal Revenue Service) for the month in which the 
ownership change occurs. Such a limitation could, for any given year, have the effect of increasing the amount of our U.S. 
federal income tax liability, which would negatively impact the amount of after-tax cash available for dividends to holders of 
Class A shares and our financial condition.

Item 1B. Unresolved Staff Comments

None.

Item 2. Properties

A description of our properties is contained in Item 1.—Business, "Our Assets" of this Annual Report.

Our principal executive offices are located at 4200 W. 115th Street, Suite 350, Leawood, KS 66211 and our telephone 

number is 913-928-6060.

57

We own two office buildings in Lakewood, Colorado, with a portion being leased to a third party pursuant to a lease with 

an initial term through March 2020. In addition, we lease our principal executive offices in Leawood, Kansas. 

Item 3. Legal Proceedings

See Note 19 – Legal and Environmental Matters, which is incorporated by reference into this Part I—Item 3 of this Annual 

Report.

Item 4. Mine Safety Disclosures

Not applicable.

58

PART II

Item 5. Market for Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity 
Securities

Market Information

On July 2, 2018, in connection with the TEP Merger, the ticker symbol for our Class A shares listed on the NYSE was 

changed from "TEGP" to "TGE." Our Class B shares are not listed or traded on any stock exchange.

Holders

As of February 6, 2019, there were 33 shareholders of record of our Class A shares. This number does not include 
shareholders whose shares are held in trust by other entities. The actual number of beneficial shareholders is greater than the 
number of holders of record. In addition, as of February 6, 2019, 10 shareholders of record owned all 123,887,893 of our Class 
B shares. 

Equity Compensation Plan

See Item 12.—Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters for 

information regarding our Equity Compensation Plan.

Distributions of Available Cash

General. Our partnership agreement requires that, within 55 days after the end of each quarter, we distribute our available 

cash to Class A Shareholders of record on the applicable record date. 

Definition of Available Cash. Available cash is defined in our partnership agreement and generally means, with respect to 
any calendar quarter, all cash and cash equivalents on hand at the date of determination of available cash for the distribution in 
respect of such quarter (including expected distributions from Tallgrass Equity in respect of such quarter), less the amount of 
cash reserves established by our general partner, which are not subject to a cap, to, among other things: 

•

•

•

•

comply with applicable law;

comply with any agreement binding upon us or our subsidiaries (exclusive of TEP and its subsidiaries);

provide for future capital expenditures, debt service and other credit needs as well as any federal, state, provincial or
other income tax that may affect us in the future; or

otherwise provide for the proper conduct of our business.

Our available cash includes cash on hand resulting from borrowings made after the end of the quarter.

Our Sources of Available Cash. Our sole cash-generating asset is an approximate 55.79% membership interest in Tallgrass 

Equity. Tallgrass Equity's sole cash generating assets consist of its direct and indirect equity interests in its subsidiaries, 
including TEP and its 75% membership interest in Rockies Express. Therefore, our cash flow and resulting ability to make 
distributions will be completely dependent upon the ability of Tallgrass Equity's subsidiaries and Rockies Express to make 
distributions. 

The actual amount of cash that Tallgrass Equity's subsidiaries and Rockies Express, and correspondingly Tallgrass Equity, 

will have available for distribution will primarily depend on the amount of cash Tallgrass Equity's subsidiaries and Rockies 
Express generates from their operations. For a description of factors that may impact our results, please read "Item 1A.—Risk 
Factors."

In addition, the actual amount of cash that Tallgrass Equity's subsidiaries, Rockies Express, and Tallgrass Equity will have 

available for distribution will depend on other factors, some of which are beyond our control, including:

•

•

•

•

•

•

the level of revenue Tallgrass Equity's subsidiaries and Rockies Express are able to generate from their respective
businesses;

the level of capital expenditures Tallgrass Equity, Tallgrass Equity's subsidiaries, or Rockies Express makes;

the level of Tallgrass Equity, Tallgrass Equity's subsidiaries, and Rockies Express' operating, maintenance and general
and administrative expenses or related obligations;

the cost of acquisitions, if any;

Tallgrass Equity's, Tallgrass Equity's subsidiaries', and Rockies Express' debt service requirements and other liabilities;

Tallgrass Equity's, Tallgrass Equity's subsidiaries' and Rockies Express' working capital needs;

59

• 

restrictions on distributions contained in Tallgrass Equity's, Tallgrass Equity's subsidiaries', or Rockies Express' debt 
agreements and any future debt agreements;

•  Tallgrass Equity's subsidiaries', and Rockies Express' ability to borrow under their respective revolving credit 

agreements to make distributions; and

• 

the amount, if any, of cash reserves established by our general partner, in its sole discretion, for the proper conduct of 
our business.

Performance Graph

The following performance graph compares the performance of our Class A shares with the NYSE Composite Index Total 

Return and the Alerian MLP Infrastructure Index Total Return during the period beginning on May 12, 2015, and ending on 
December 31, 2018. The graph assumes a $100 investment in our Class A shares and in each of the indices at the beginning of 
the period and a reinvestment of distributions/dividends paid on such investments throughout the period.

Recent Sales of Unregistered Equity Securities

None.

Repurchase of Equity by Tallgrass Energy, LP or Affiliated Purchasers

None.

60

Item 6. Selected Financial Data

The historical financial statements included in this Annual Report reflect the consolidated results of operations of TGE's 
membership interest in Tallgrass Equity and Tallgrass Equity's membership interest in TEP. In connection with the closing of 
the TGE IPO on May 12, 2015, the following transactions (the "Reorganization Transactions") occurred (i) Tallgrass Equity 
distributed its interests in Tallgrass Energy Holdings and Tallgrass Energy Holdings distributed its existing limited partner 
interest in TGE, respectively, to certain of the Exchange Right Holders, that also collectively own 100% of the voting power of 
Tallgrass Energy Holdings; (ii) TGE issued 47,725,000 Class A shares to the public (including 6,225,000 Class A shares issued 
in connection with the underwriters' exercise of the overallotment option) for net proceeds of approximately $1.3 billion; (iii) 
the existing limited partner interests in TGE held by certain of the Exchange Right Holders were converted into 115,729,440 
Class B shares, 6,225,000 of which were automatically cancelled in connection with the underwriters' exercise of its 
overallotment option; (iv) Tallgrass Equity issued 41,500,000 Tallgrass Equity units to TGE in exchange for approximately 
$1.1 billion in net proceeds from the issuance of TGE's Class A shares to the public and amended the limited liability company 
agreement of Tallgrass Equity to, among other things, provide that TGE is the managing member of Tallgrass Equity; (v) TGE 
used the net proceeds from the purchase of the 6,225,000 overallotment option shares to purchase a like amount of Tallgrass 
Equity units from certain of the Exchange Right Holders; and (vi) Tallgrass Equity entered into a $150 million revolving credit 
facility and borrowed $150 million thereunder, using the aggregate proceeds from such borrowings, together with the net 
proceeds from the TGE IPO that Tallgrass Equity received from TGE, to purchase 20 million TEP common units from Tallgrass 
Development, LP at $47.68 per TEP common unit (the "Acquired TEP Units") and pay offering expenses and other transaction 
costs. Tallgrass Equity distributed the remaining proceeds (the "Excess Proceeds") to certain of the Exchange Right Holders. 
The following discussion analyzes the financial condition and results of operations of TGE, which for periods prior to the 
completion of the TGE IPO on May 12, 2015 includes the financial condition and results of operations of TGE Predecessor, 
which refers to TGE as recast to show the effects of the Reorganization Transactions.

In certain circumstances and for ease of reading we discuss the financial results of these entities prior to their respective 
acquisitions as being "our" financial results during historic periods, although Trailblazer was owned by TD from November 13, 
2012 to March 31, 2014, Pony Express was wholly-owned by TD from November 13, 2012 to August 31, 2014, and Terminals 
and NatGas were owned by TD from November 13, 2012 to December 31, 2016. As used in this Annual Report, unless the 
context otherwise requires, "we," "us," "our," the "Partnership," "TGE" and similar terms refer to Tallgrass Energy, LP, 
together with its consolidated subsidiaries (including Tallgrass Equity, TEP and their respective subsidiaries). The term our 
"general partner" refers to Tallgrass Energy GP, LLC. References to "Tallgrass Development" or "TD" refer to Tallgrass 
Development, LP. 

The following discussion and analysis of our financial condition and results of operations should be read in conjunction 

with the consolidated financial statements and related notes thereto included elsewhere in this Annual Report. A reference to a 
"Note" herein refers to the accompanying Notes to Consolidated Financial Statements contained in Item 8.—Financial 
Statements. In addition, please read "Cautionary Statement Regarding Forward-Looking Statements" and "Risk Factors" for 
information regarding certain risks inherent in our business.

The following table shows selected historical financial and operating data of TGE for the periods and as of the dates 
indicated. The selected historical financial data for periods prior to the completion of the TGE IPO on May 12, 2015 includes 
the financial condition and results of operations of TGE Predecessor, which refers to TGE as recast to show the effects of the 
Reorganization Transactions.

We derived the information in the following table from, and that information should be read together with and is qualified 

in its entirety by reference to, the consolidated financial statements and the accompanying notes included elsewhere in this 
Annual Report.

61

Our operating results incorporate a number of significant estimates and uncertainties. Such matters could cause the data 

included herein to not be indicative of our future financial condition or results of operations. A discussion of our critical 
accounting estimates is included in "Management's Discussion and Analysis of Financial Condition and Results of Operations" 
in Item 7.

Year Ended December 31,

Statement of operations data:

Revenue .................................................... $
Operating income...................................... $
Equity in earnings of unconsolidated 
investments (1)............................................ $
Net income before tax............................... $
Net income................................................ $
Net income (loss) attributable to TGE,
excluding predecessor operations interest $
Basic net income (loss) per Class A share $
Diluted net income (loss) per Class A
share.......................................................... $

2018

793,259

350,631

306,819

523,380

467,671

137,127

1.27

1.27

Balance sheet data (at end of period):

Property, plant and equipment, net ........... $ 2,802,429
Unconsolidated investments (1) ................. $ 1,861,686
Total assets................................................ $ 5,893,509
Long-term debt, net .................................. $ 3,205,958

Other:

2017

2015
(in thousands, except per share amounts)

2016

$

$

$

$

$

$

$

$

655,898

271,847

237,110

432,443

223,985

$

$

$

$

$

611,662

258,418

54,531

267,780

250,039

(128,729) $
(2.22) $

26,794

0.55

(2.22) $

0.55

$

$

$

$

$

$

$

$

542,661

206,229

2,759

193,071

200,348

24,563 (2)
0.51 (2)

0.51 (2)

2014

377,313

58,970

1,617

65,786

65,786

$

$

$

$

$

N/A

N/A

N/A

$ 2,394,337

$ 2,079,232

$ 2,079,567

$ 1,853,081

$

909,531

$

475,625

$

13,565

$

15,071

$ 4,292,013

$ 3,625,480

$ 3,088,635

$ 2,476,599

$ 2,292,993

$ 1,555,981

$

$

901,000

$

559,000

0.39

N/A

Dividends declared per Class A share....... $

2.02

$

1.35

$

1.00

(1)  For more information see Note 7 – Investments in Unconsolidated Affiliates.

(2)  The Net income attributed to TGE was based upon the number of days between the closing of the IPO on May 12, 2015 to 

December 31, 2015.

Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations

As discussed further in Note 2 – Summary of Significant Accounting Policies, our financial statements for historical 

periods prior to January 1, 2017 have been recast to reflect the operations of Terminals and NatGas, which were acquired 
effective January 1, 2017.

The following discussion and analysis of our financial condition and results of operations should be read in conjunction 

with the consolidated financial statements and related notes thereto included elsewhere in this Annual Report. 

Overview

TGE is a limited partnership that owns, operates, acquires and develops midstream energy assets in North America and has 

elected to be treated as a corporation for U.S. federal income tax purposes. 

Our operations are conducted through, and our operating assets are owned by, our direct and indirect subsidiaries, 

including Tallgrass Equity, in which we directly own an approximate 55.79% membership interest as of February 8, 2019. We 
are located in and provide services to certain key United States hydrocarbon basins, including the Denver-Julesburg, Powder 
River, Wind River, Permian and Hugoton-Anadarko Basins and the Niobrara, Mississippi Lime, Eagle Ford, Bakken, 
Marcellus, and Utica shale formations.

Our reportable business segments are:

•  Natural Gas Transportation—the ownership and operation of FERC-regulated interstate natural gas pipelines and an 

integrated natural gas storage facility;

•  Crude Oil Transportation—the ownership and operation of FERC-regulated crude oil pipeline systems; and

62

•  Gathering, Processing & Terminalling—the ownership and operation of natural gas gathering and processing facilities; 

crude oil storage and terminalling facilities; the provision of water business services primarily to the oil and gas 
exploration and production industry; the transportation of NGLs; and the marketing of crude oil and NGLs.

Additional information about our operations and assets is contained in the business overview included in Item 1.—

Business under "Overview" and "Our Assets."

Financial Presentation 

TGE's operations are conducted through our direct and indirect subsidiaries in Tallgrass Equity and TEP. TGE is the 

managing member of and therefore controls Tallgrass Equity. Tallgrass Equity, in turn, controls TEP through the direct 
ownership of 100% of Tallgrass MLP GP, LLC ("TEP GP"), TEP's general partner. As a result, under GAAP, TGE consolidates 
Tallgrass Equity, TEP GP, TEP, and TEP's subsidiaries. As such, TGE's results of operations will not differ materially from the 
results of operations of TEP. The most noteworthy reconciling items between TGE's consolidated financial statements and 
TEP's consolidated financial statements primarily relate to (i) the inclusion of the Tallgrass Equity revolving credit facility prior 
to repayment and termination on July 26, 2018, (ii) the impact of TGE's election to be treated as a corporation for U.S. federal 
income tax purposes, and (iii) the presentation of noncontrolling interests in Tallgrass Equity and, prior to the TEP Merger, 
TEP. The interests in Tallgrass Equity and TEP that are not directly or indirectly owned by TGE will be reflected as being 
attributable to noncontrolling interests in TGE's consolidated financial statements.

Summary of Results for the Year Ended December 31, 2018 

During 2018, we completed the TEP Merger as discussed in Note 1 – Description of Business, as well as acquisitions of a 

100% membership interest in BNN North Dakota, an additional 2% membership interest in Pony Express, an additional 
25.01% membership interest in Rockies Express, a 51% membership interest in Pawnee Terminal and a 100% membership 
interest in NGL Water Solutions Bakken, LLC. In addition, we issued $500 million in aggregate principal amount of 4.75% 
senior notes due 2023 (the "2023 Notes"), the proceeds of which were used to repay borrowings under TEP's revolving credit 
facility. 

Net income for the year ended December 31, 2018 was $467.7 million, with Adjusted EBITDA and Cash Available for 
Dividends (each as defined below under "Non-GAAP Financial Measures") of $654.4 million and $548.7 million, respectively, 
compared to net income for the year ended December 31, 2017 of $224.0 million, with Adjusted EBITDA and Cash Available 
for Dividends of $300.3 million and $268.4 million, respectively. The increase in net income, Adjusted EBITDA, and Cash 
Available for Dividends was largely driven by our increased ownership in TEP due to the TEP Merger, as well as our 
acquisition of an additional 25.01% membership interest in Rockies Express, as discussed further under "Results of Operations" 
below.

Recent Developments

TGE Dividend Announced

On January 15, 2019, the Board of Directors of our general partner declared a cash dividend for the quarter ended 

December 31, 2018 of $0.5200 per Class A share. The distribution will be paid on February 14, 2019, to Class A shareholders 
of record on January 31, 2019.

Powder River Gateway

In January 2019, we closed on an expansion of our joint venture with Silver Creek. Effective January 1, 2019, we own a 

51% membership interest in Powder River Gateway, which holds the Iron Horse Pipeline, the PRE Pipeline, and crude oil 
terminal facilities in Guernsey, Wyoming. For additional information, see Note 3 – Acquisitions and Dispositions.

Blackstone Acquisition 

On January 31, 2019, we announced that BIP had entered into a definitive purchase agreement with Kelso, EMG, and 
Tallgrass KC pursuant to which BIP will acquire 100% of the membership interests in our general partner and an approximate 
44% economic interest in us. Subject to customary closing conditions, the Blackstone Acquisition is expected to close within 
the first quarter of 2019.

Factors and Trends Impacting Our Business

We expect to continue to be affected by certain key factors and trends described below. Our expectations are based on 

assumptions made by us and information currently available to us. To the extent our underlying assumptions about, or 
interpretations of, available information prove to be incorrect, our actual results may vary materially from our expected results. 
See also Item 1A.—Risk Factors.

63

Long-Term U.S. Crude Oil and Natural Gas Prospects

Crude oil, natural gas, and products derived from both continue to be critical components of energy supply and demand in 
the United States. Crude oil and natural gas prices declined significantly from the second half of 2014 through the first half of 
2016 and crude oil experienced significant volatility during that time. However, prices generally stabilized during 2017 and 
early 2018, experiencing some volatility in the second half of 2018. Although price declines and volatility may occur in 
commodity markets at points in the future, we believe long-term prospects for continued domestic crude oil and natural gas 
production increases are favorable.

We believe long-term growth will be driven, in part, by a combination of increased domestic demand resulting from 
population and economic growth, higher industrial consumption in the U.S. spurred by the lower commodity price of feedstock 
and fuel, and a desire to reduce domestic reliance on imports. One example is that we expect natural gas to gradually displace 
coal-fired electricity generation due to the low prices of natural gas and stricter environmental regulations on the mining and 
burning of coal. Additionally, we believe that the U.S. will continue to increase its total volume exported of both natural gas 
and crude oil as new and additional infrastructure is developed to export these commodities. We expect productivity of oil and 
natural gas wells to continue increasing over the long-term in some basins across the United States because of the increasing 
precision and efficiency of horizontal drilling and hydraulic fracturing in oil and natural gas extraction. We also believe there is 
a substantial inventory of drilled but uncompleted wells in the basins we serve, including the Bakken shale and Denver-
Julesburg basin, that are likely to be completed and turned into production as commodity prices stabilize and continue to 
recover. 

Current Commodity Environment

Starting in the second half of 2014 and through the first half of 2016, the prices of crude oil, natural gas, and NGLs were 

extremely volatile and declined significantly. During 2017 and early 2018, price stability appeared to have generally been 
restored to the market, but in the second half of 2018 some volatility returned. To the extent some of our customers remain 
concerned about extended unfavorably low prices, it may be due to concerns over excess supply, truncation of current OPEC 
production cuts and increased mainstream use of alternative sources of energy.

Demand for our services depends, in part, on the development of additional natural gas and crude oil reserves by third 

parties. This requires significant capital expenditures by others to install facilities that extract natural gas and crude oil. 
However, the possibility for low commodity prices may result in a lack of available capital for these types of expenditures. To 
the extent our customers cannot finance these activities, we expect they may be less likely to enter into demand based, long-
term firm fee contracts. Low commodity prices may also negatively impact the financial condition of our customers and could 
impact their ability to meet their financial obligations to us.

Additionally, lower commodity prices may lead to reduced utilization of our assets. For example, reduced utilization could 
result in increased deficiency balances held by customers of our Pony Express System. For additional information, see Item 1A.
—Risk Factors, "The Throughput and Deficiency Agreements for the Pony Express System and some of our service agreements 
with respect to our water business services contain provisions that can reduce the cash flow stability that the agreements were 
designed to achieve." 

Growth Associated with Acquisitions and Expansion Projects

Growth associated with acquisitions

We believe that we are well-positioned to grow through accretive acquisitions due to our stable financial profile and 
diverse asset base that presents many logical strategic opportunities. In the past, we heavily relied on acquiring assets from 
TD's portfolio of midstream assets. Now that TD has divested its entire asset portfolio, our growth through acquisitions will 
rely almost exclusively on buying assets or businesses from third parties. Third party acquisitions present different risks than 
those associated with acquiring assets from TD. Sourcing attractive, accretive opportunities and performing diligence on those 
opportunities requires significantly more time from our employees. Most third party acquisitions involve competition from 
other buyers, which generally increases the purchase price. If we are able to execute a third-party transaction, we may 
encounter challenges when integrating different work cultures and operational systems. During 2018, we executed several third 
party acquisitions, including BNN North Dakota, Deeprock North, an interest in Pawnee Terminal, and NGL Water Solutions 
Bakken. For additional information, see Note 3 – Acquisitions and Dispositions.

64

Growth associated with expansion projects

We also believe that we are well positioned to increase volumes to our systems through cost-effective capacity expansions 

and other methods for improving efficiency. For example, in January 2017, Rockies Express placed in-service the Rockies 
Express Zone 3 Capacity Enhancement Project that added an incremental 0.8 Bcf/d of east-to-west capacity within Zone 3 of 
the Rockies Express Pipeline. In the second quarter of 2018, Pony Express Pipeline placed in-service the Platteville Extension 
Project. During 2017 and 2018, we also announced and are currently executing on the Cheyenne Connector Pipeline and the 
Iron Horse Pipeline. 

Energy Capital Markets and Interest Rates

During the second half of 2015 and into mid-2016, the energy credit markets experienced a material increase in the yields 

for long-term debt, which caused an issuance of senior unsecured notes to be a less attractive financing option until the third 
quarter of 2016, when we were able to issue the 2024 Notes. At the same time, the downturn in commodity prices generally 
limited the availability of capital through traditional public issuances of common units for much of 2016. While the downturn 
did not change our business plans, including our growth through acquisitions and expansion projects, it did temporarily alter 
some of our financing strategies. In 2017 and 2018, TEP was able to issue an additional $1.6 billion in aggregate principal 
amount of senior notes with rates from 4.75% to 5.5%.

In addition, the Federal Reserve has continued to incrementally increase short-term interest rates, which marginally 

impacts the rates on our floating rate revolving credit facility. Changes in the short-term interest rates also affect how our Class 
A shares are compared and ranked with other yield-oriented securities for investment decision-making purposes. If the 
economy continues to strengthen, it is likely that monetary policy will continue to tighten, resulting in higher interest rates to 
counter possible inflation. If this occurs, interest rates on our floating rate credit facilities and future offerings in the debt capital 
markets could be at higher rates, causing our financing costs to increase accordingly. Further, investors could require a higher 
yield on our Class A shares, potentially decreasing their price, which in turn could limit our ability to complete future equity 
offerings at favorable pricing. For additional information, please read Item 7A.—Quantitative and Qualitative Disclosures 
About Market Risk.

How We Evaluate Our Operations 

We evaluate our results using, among other measures, contract profile and volumes, operating costs and expenses, Adjusted 
EBITDA and Cash Available for Dividends. Adjusted EBITDA and Cash Available for Dividends are non-GAAP measures and 
are defined below.

Contract Profile and Volumes

Our results are driven primarily by the volume of natural gas transportation and storage capacity, crude oil transportation, 

storage, and terminalling capacity, NGL transportation capacity, and water transportation, gathering, recycling and disposal 
capacity under firm fee contracts, as well as the volume of natural gas that we gather and process and the fees assessed for such 
services.

Operating Costs and Expenses

The primary components of operating costs and expenses that we evaluate include cost of sales, cost of transportation 

services, operations and maintenance and general and administrative costs. Operating expenses are driven primarily by 
expenses related to the operation, maintenance and growth of our asset base.

Adjusted EBITDA and Cash Available for Dividends

Adjusted EBITDA and Cash Available for Dividends are non-GAAP supplemental financial measures that management 
and external users of our consolidated financial statements, such as industry analysts, investors, lenders and rating agencies, 
may use to assess:

• 

• 

• 

• 

our operating performance as compared to other publicly traded midstream infrastructure companies, without regard to 
historical cost basis or, in the case of Adjusted EBITDA, financing methods;

the ability of our assets to generate sufficient cash flow to make dividends to our shareholders;

our ability to incur and service debt and fund capital expenditures; and

the viability of acquisitions and other capital expenditure projects and the returns on investment of various expansion 
and growth opportunities.

65

We believe that the presentation of Adjusted EBITDA and Cash Available for Dividends provides useful information to 
investors in assessing our financial condition and results of operations. Adjusted EBITDA and Cash Available for Dividends 
should not be considered alternatives to net income, operating income, net cash provided by operating activities or any other 
measure of financial performance or liquidity presented in accordance with GAAP, nor should Adjusted EBITDA and Cash 
Available for Dividends be considered alternatives to available cash or other definitions in our partnership agreement. Adjusted 
EBITDA and Cash Available for Dividends have important limitations as analytical tools because they exclude some but not all 
items that affect net income and net cash provided by operating activities. Additionally, because Adjusted EBITDA and Cash 
Available for Dividends may be defined differently by other companies in our industry, our definition of Adjusted EBITDA and 
Cash Available for Dividends may not be comparable to similarly titled measures of other companies, thereby diminishing their 
utility.

Non-GAAP Financial Measures

We generally define Adjusted EBITDA as net income excluding the impact of interest, income taxes, depreciation and 
amortization, non-cash income or loss related to derivative instruments, non-cash long-term compensation expense, impairment 
losses, gains or losses on asset or business disposals or acquisitions, gains or losses on the repurchase, redemption or early 
retirement of debt, and earnings from unconsolidated investments, but including the impact of distributions from 
unconsolidated investments and deficiency payments received from or utilized by our customers. We also use Cash Available 
for Dividends, which we generally define as Adjusted EBITDA, less cash interest costs, maintenance capital expenditures, and 
certain cash reserves permitted by our governing documents. Adjusted EBITDA and Cash Available for Dividends are both 
calculated and presented at the Tallgrass Equity level, before consideration of noncontrolling interest associated with the 
Exchange Right Holders or calculating distributions from Tallgrass Equity to us, on one hand, and to the Exchange Right 
Holders, on the other. We believe calculating these measures at Tallgrass Equity provides investors the most complete picture of 
our overall financial and operational results and provides a consistent metric for period over period comparisons that is not 
impacted by any future exercises by the Exchange Right Holders of the Exchange Right, which does not have a dilutive effect 
on TGE's net income per share.

Maintenance capital expenditures are cash expenditures incurred (including expenditures for the construction or 
development of new capital assets) that we expect to maintain our long-term operating income or operating capacity. These 
expenditures typically include certain system integrity, compliance and safety improvements, and are presented net of 
noncontrolling interest and reimbursements. We collect deficiency payments for volumes committed by our customers to be 
transported in a month but not physically received for transport or delivered to the customers' agreed upon destination point. 
These deficiency payments are recorded as a deferred liability until the barrels are physically transported and delivered, or 
when the likelihood that the customer will utilize the deficiency balance becomes remote.

66

Adjusted EBITDA and Cash Available for Dividends are not presentations made in accordance with GAAP. The following 

table presents a reconciliation of Adjusted EBITDA to Net income attributable to TGE and net cash provided by operating 
activities and a reconciliation of Cash Available for Dividends to net cash provided by operating activities, the most directly 
comparable GAAP financial measures, for each of the periods indicated:

Reconciliation of Tallgrass Equity Adjusted EBITDA to Net income (loss)
attributable to TGE
Net income (loss) attributable to TGE ............................................................ $
Add:

Interest expense, net (1) ...............................................................................
Depreciation and amortization expense (1) .................................................
Distributions from unconsolidated investments (1).....................................
Deficiency payments, net (1) .......................................................................
Non-cash compensation expense (1)(2).........................................................
Loss on debt retirement ..............................................................................

Deferred income tax expense .....................................................................

Net income attributable to Exchange Right Holders..................................

Less:

Equity in earnings of unconsolidated investments (1).................................
(Gain) loss on disposal of assets (1) ............................................................
Non-cash (gain) loss related to derivative instruments ..............................
Gain on remeasurement of unconsolidated investment (1)..........................

Tallgrass Equity Adjusted EBITDA................................................................ $
Reconciliation of Tallgrass Equity Adjusted EBITDA and Cash Available
for Dividends to Net Cash Provided by Operating Activities
Net cash provided by operating activities ....................................................... $
Add:

Year Ended December 31,

2018

2017
(in thousands)

2016

137,127

$

(128,729) $

33,789

95,465

74,998

302,364

14,443

8,634

2,245
55,709

208,618

(237,197)
(4,630)
(3,340)
—

654,436

$

29,403

26,131

86,551

7,701

2,682

—
208,458

137,849

(66,922)
(189)
64
(2,744)
300,255

16,632

25,567

22,085

9,672

1,862

—
17,741

95,882

(15,287)
526

650

—

$

209,119

672,525

$

571,396

$

413,298

Interest expense, net (1) ...............................................................................
Other, including changes in operating working capital (1)..........................

Tallgrass Equity Adjusted EBITDA
Less:

95,465
(113,554)
654,436

$

29,403
(300,544)
300,255

$

16,632
(220,811)
209,119

$

Cash interest cost (1)....................................................................................
Maintenance capital expenditures, net (1) ...................................................
Cash flow attributable to predecessor operations.......................................
Tallgrass Equity Cash Available for Dividends............................................... $

(91,590)
(14,176)
—

(27,669)
(4,179)
—

548,670

$

268,407

$

(15,168)
(3,270)
(2,743)
187,938

(1)  Net of noncontrolling interest associated with less than wholly-owned subsidiaries of Tallgrass Equity.

(2)  Represents TGE's portion of non-cash compensation expense related to Equity Participation Shares and TEP's Equity 

Participation Units, excluding amounts allocated to TD prior to the merger of TD into Tallgrass Development Holdings, 
LLC, a wholly-owned subsidiary of Tallgrass Equity, on February 7, 2018.

67

The following table presents a reconciliation of Adjusted EBITDA by segment to segment operating income, the most 

directly comparable GAAP financial measure, for each of the periods indicated:

Reconciliation of Tallgrass Equity Adjusted EBITDA to Operating 
Income in the Natural Gas Transportation Segment (1)
Operating income..................................................................................... $
Add:

Depreciation and amortization expense (2) ..........................................
Distributions from unconsolidated investment (2) ...............................
Other, net (2).........................................................................................

Less:

Adjusted EBITDA attributable to noncontrolling interests.................
Non-cash (gain) loss related to derivative instruments (2) ...................
Tallgrass Equity Segment Adjusted EBITDA.......................................... $
Reconciliation of Tallgrass Equity Adjusted EBITDA to Operating 
Income in the Crude Oil Transportation Segment (1)
Operating income..................................................................................... $
Add:..........................................................................................................
Depreciation and amortization expense (2) ..........................................
Deficiency payments, net (2) ................................................................

Less:

Adjusted EBITDA attributable to noncontrolling interests.................
Non-cash (gain) loss related to derivative instruments (2) ...................
Tallgrass Equity Segment Adjusted EBITDA.......................................... $
Reconciliation of Tallgrass Equity Adjusted EBITDA to Operating 
Income in the Gathering, Processing & Terminalling Segment (1)
Operating income (loss)........................................................................... $
Add:

Depreciation and amortization expense (2) ..........................................
Non-cash (gain) loss related to derivative instruments (2) ...................
Distributions from unconsolidated investments (2)..............................
Deficiency payments, net (2) ................................................................
Other, net (2).........................................................................................

Less:

Year Ended December 31,

2018

2017
(in thousands)

2016

69,586

$

67,434

$

56,135

13,102

297,496

2,359

5,421

85,994

1,424

6,099

21,245

1,722

(5,319)
—

377,224

$

20,738
(33)
180,978

$

(10,205)
33

75,029

258,308

$

190,170

$

215,784

36,578

4,858

16,156

7,967

15,211

9,123

(60,414)
—

239,330

$

(73,385)
(123)
140,785

(108,093)
129

$

132,154

51,565

$

33,453

$

(903)

21,665
(3,340)
4,868

8,540
182

4,554

750

557
(458)
142

4,257
(84)
773

550
—

526
(1,041)
4,078

211,261
(2,142)
209,119

(Gain) loss on disposal of assets (2) .....................................................
Adjusted EBITDA attributable to noncontrolling interests.................
Tallgrass Equity Segment Adjusted EBITDA.......................................... $
Total Tallgrass Equity Segment Adjusted EBITDA................................. $
Corporate general and administrative costs ........................................
Total Tallgrass Equity Adjusted EBITDA................................................ $

(4,630)
(19,647)
59,203

675,757
(21,321)
654,436

$

$

$

(189)
(22,726)
16,083

337,846
(37,591)
300,255

$

$

$

(1)  Segment results as presented represent total operating income and Adjusted EBITDA, including intersegment activity, for 
the Natural Gas Transportation, Crude Oil Transportation, and Gathering, Processing & Terminalling segments. For 
reconciliations to the consolidated financial data, see Note 20 – Reportable Segments to the accompanying consolidated 
financial statements.

(2)  Net of noncontrolling interest associated with less than wholly-owned subsidiaries of Tallgrass Equity.

68

 
Results of Operations

The following provides a summary of our operating metrics for the periods indicated:

Year Ended December 31,

2018

2017
(in thousands, except operating data)

2016

Natural Gas Transportation Segment:

TIGT and Trailblazer average firm contracted volumes (MMcf/d) (1)...
Rockies Express average firm contracted volumes (MMcf/d) (2) ..........

Crude Oil Transportation Segment:

Crude oil transportation average contracted capacity (Bbls/d) .............

Crude oil transportation average throughput (Bbls/d)...........................

Gathering, Processing & Terminalling Segment:

Natural gas processing inlet volumes (MMcf/d) ...................................

Freshwater average volumes (Bbls/d) ...................................................

Produced water gathering and disposal average volumes (Bbls/d) .......

(1)  Volumes transported under firm fee contracts, excluding Rockies Express.

(2)  Volumes transported under long-term firm fee contracts.

1,636

4,101

306,936

336,314

122

17,849

98,489

1,711

4,101

301,936

267,734

109

69,139

31,511

1,627

3,384

295,435

285,507

103

13,201

11,307

69

The following provides a summary of our consolidated results of operations for the periods indicated:

Revenues:

Crude oil transportation services ................................................... $
Natural gas transportation services................................................
Sales of natural gas, NGLs, and crude oil .....................................
Processing and other revenues.......................................................
Total Revenues .......................................................................

Operating Costs and Expenses:

Cost of sales...................................................................................
Cost of transportation services ......................................................
Operations and maintenance..........................................................
Depreciation and amortization ......................................................
General and administrative............................................................
Taxes, other than income taxes......................................................
Contract termination......................................................................
(Gain) loss on disposal of assets....................................................
Total Operating Costs and Expenses......................................
Operating Income .................................................................................
Other Income (Expense):

Equity in earnings of unconsolidated investments ........................
Interest expense, net ......................................................................
Gain on remeasurement of unconsolidated investment.................
Other (expense) income, net..........................................................
Total Other Income (Expense) ...............................................
Net income before tax...........................................................................
Deferred income tax expense ........................................................
Net income............................................................................................
Net income attributable to noncontrolling interests ......................
Net income (loss) attributable to TGE.................................................. $

Year Ended December 31,

2018

2017

(in thousands)

2016

398,334

$

345,733

$

126,894

168,586

99,445

793,259

114,815

53,068

72,460

110,862

70,656
31,810

—
(11,043)
442,628

350,631

306,819
(133,319)
—
(751)
172,749

523,380
(55,709)
467,671
(330,544)
137,127

122,364

108,503

79,298

655,898

91,213

46,200

62,069

90,800

65,536
28,832

—
(599)
384,051

271,847

237,110
(89,348)
9,728

3,106

160,596

432,443
(208,458)
223,985
(352,714)
(128,729) $

$

374,949

119,962

77,123

39,628

611,662

71,650

47,669

55,070

86,247

57,298
25,400

8,061

1,849

353,244

258,418

54,531
(45,601)
—

432

9,362

267,780
(17,741)
250,039
(216,250)
33,789

Year Ended December 31, 2018 Compared to the Year Ended December 31, 2017

Revenues. Total revenues were $793.3 million for the year ended December 31, 2018 compared to $655.9 million for the 

year ended December 31, 2017, which represents an increase of $137.4 million, or 21%, in total revenues. The overall increase 
in revenue was largely driven by increased revenues of $93.5 million and $79.9 million in the Gathering, Processing & 
Terminalling and Crude Oil Transportation segments, respectively, partially offset by a $35.4 million increase in eliminations of 
intersegment revenue and decreased revenues of $0.6 million in the Natural Gas Transportation segment, as discussed further 
below.

Operating costs and expenses. Operating costs and expenses were $442.6 million for the year ended December 31, 2018 
compared to $384.1 million for the year ended December 31, 2017, which represents an increase of $58.6 million, or 15%. The 
overall increase in operating costs and expenses is driven by increased operating costs and expenses of $75.3 million and $11.7 
million in the Gathering, Processing & Terminalling and Crude Oil Transportation segments, respectively, partially offset by 
decreased operating costs and expenses of $25.7 million and $2.7 million in the Corporate and Other and Natural Gas 
Transportation segments, as discussed further below. The decrease in Corporate and Other expenses was primarily driven by a 
$35.4 million increase in eliminations of intersegment operating costs and expenses, partially offset by a $4.9 million increase 
in corporate general and administrative costs and a $4.8 million increase in depreciation and amortization costs due to the 
administrative assets acquired from TD in February 2018. The increase in corporate general and administrative costs was 

70

 
primarily due to expenses at TEP and Tallgrass Equity attributable to the Merger Agreement and the transactions contemplated 
by the Merger Agreement, as well as Tallgrass Equity's acquisition of an additional 25.01% membership interest in Rockies 
Express and additional TEP common units.

Equity in earnings of unconsolidated investments. Equity in earnings of unconsolidated investments was $306.8 million 

and $237.1 million for the years ended December 31, 2018 and 2017, respectively. Equity in earnings of unconsolidated 
investments of $306.8 million for the year ended December 31, 2018 primarily reflects our portion of earnings and the $35.9 
million of amortization of a negative basis difference associated with our aggregate 75% membership interest in Rockies 
Express, inclusive of the additional 25.01% membership interest acquired in February 2018, as well as $4.2 million of equity in 
earnings related to our 51% membership interest in Pawnee Terminal. Equity in earnings of unconsolidated investments of 
$237.1 million for the year ended December 31, 2017 primarily reflects our portion of earnings and the $23.2 million of 
amortization of a negative basis difference associated with our 49.99% membership interest in Rockies Express as well as $1.5 
million of equity in earnings related to our 20% membership interest in Deeprock Development prior to our acquisition of a 
controlling financial interest in Deeprock Development in July 2017. During the year ended December 31, 2017, Rockies 
Express recognized a $150 million gain on settlement of the Ultra litigation as discussed in Note 19 – Legal and Environmental 
Matters. 

Interest expense, net. Interest expense of $133.3 million for the year ended December 31, 2018 was primarily composed of 

interest and fees associated with the Senior Notes, as defined in Note 10 – Long-term Debt, and the TEP and Tallgrass Equity 
revolving credit facilities. Interest expense of $89.3 million for the year ended December 31, 2017 was primarily composed of 
interest and fees associated with TEP and Tallgrass Equity revolving credit facilities and the 2024 Notes issued on September 1, 
2016 and May 16, 2017, and the 2028 Notes issued on September 15, 2017 and December 11, 2017. The increase in interest 
and fees is primarily due to increased borrowings to fund a portion of our 2017 and 2018 acquisitions, as well as the higher 
borrowing rate on the Senior Notes, the proceeds of which were used to repay borrowings under TEP's revolving credit facility.

Gain on remeasurement of unconsolidated investment. Gain on remeasurement of unconsolidated investment of $9.7 
million for the year ended December 31, 2017 was related to the remeasurement to fair value of our existing 20% membership 
interest in Deeprock Development in connection with our acquisition of a controlling financial interest in Deeprock 
Development in July 2017. For additional information, see Note 3 – Acquisitions and Dispositions.

Other (expense) income, net. Other (expense) income, net typically includes rental income and income earned from certain 

customers related to the capital costs we incurred to connect these customers to our system. Other expense for the year ended 
December 31, 2018 was $0.8 million compared to other income of $3.1 million for the year ended December 31, 2017. Other 
expense of $0.8 million for the year ended December 31, 2018 included a $2.2 million loss on debt retirement associated with 
the write off of deferred financing costs associated with the Amendment to the TEP revolving credit facility and the termination 
of the Tallgrass Equity revolving credit facility. Other income of $3.1 million for the year ended December 31, 2017 included a 
$1.9 million unrealized gain on derivative instrument related to the change in fair value of the call option received from TD as 
part of the acquisition of an additional 31.3% membership interest in Pony Express as discussed further in Note 9 – Risk 
Management.

Deferred income tax expense. Deferred income tax expense for the year ended December 31, 2018 was $55.7 million 
compared to a deferred income tax expense of $208.5 million for the year ended December 31, 2017. The decrease in deferred 
income tax expense was primarily driven by the remeasurement of the deferred tax asset during the year ended December 31, 
2017 as a result of the federal rate change under the tax legislation referred to as the Tax Cuts and Jobs Act that was signed into 
law on December 22, 2017, partially offset by our increased ownership in TEP due to the TEP Merger and the resulting increase 
in income allocated to TGE. For additional information, see Note 17 – Income Taxes.

Year Ended December 31, 2017 Compared to the Year Ended December 31, 2016 

Revenues. Total revenues were $655.9 million for the year ended December 31, 2017 compared to $611.7 million for the 

year ended December 31, 2016, which represents an increase of $44.2 million, or 7%, in total revenues. The overall increase in 
revenue was largely driven by increased revenues of $72.7 million and $5.9 million in the Gathering, Processing & 
Terminalling and Natural Gas Transportation segments, respectively, partially offset by decreased revenues of $15.9 million in 
the Crude Oil Transportation segment, as discussed further below.

Operating costs and expenses. Operating costs and expenses were $384.1 million for the year ended December 31, 2017 
compared to $353.2 million for the year ended December 31, 2016, which represents an increase of $30.8 million, or 9%. The 
overall increase in operating costs and expenses was driven by increased operating costs and expenses of $38.3 million 
and $9.7 million in the Gathering, Processing & Terminalling and Crude Oil Transportation segments, respectively, partially 
offset by decreased operating costs and expenses of $11.8 million in the Corporate and Other segment and $5.4 million in the 
Natural Gas Transportation segment, as discussed further below. The decrease in Corporate and Other expenses was primarily 
driven by an $18.4 million increase in eliminations of intersegment operating costs and expenses, partially offset by a $6.6 
million increase in corporate general and administrative costs primarily due to new equity-based compensation grants issued 

71

during the year ended December 31, 2017 as well as payroll taxes associated with the vesting of TEP common units associated 
with equity-based compensation grants under the TEP GP Long-term Incentive Plan.

Equity in earnings of unconsolidated investments. Equity in earnings of unconsolidated investments was $237.1 

million and $54.5 million for the years ended December 31, 2017 and 2016, respectively. Equity in earnings of unconsolidated 
investments of $237.1 million for the year ended December 31, 2017 primarily reflects our portion of earnings and the $23.2 
million of amortization of a negative basis difference associated with our 49.99% membership interest in Rockies Express, as 
well as $1.5 million of equity in earnings related to our 20% membership interest in Deeprock Development prior to our 
acquisition of a controlling financial interest in Deeprock Development in July 2017, as discussed in Note 3 – Acquisitions and 
Dispositions. The equity in earnings for the year ended December 31, 2017 includes recognition of our portion of the $150 
million gain on settlement of the Ultra litigation as discussed above. Equity in earnings of unconsolidated investments of $54.5 
million for the year ended December 31, 2016 primarily reflects our portion of earnings and the $9.1 million of amortization of 
a negative basis difference associated with our acquisition of a 25% membership interest in Rockies Express effective May 6, 
2016, as well as $2.8 million related to our 20% membership interest in Deeprock Development during the year ended 
December 31, 2016. The equity in earnings for the year ended December 31, 2016 includes recognition of our portion of the 
$65 million settlement received by Rockies Express related to the lawsuit between Mineral Management Service, a former unit 
of the U.S. Department of Interior (collectively "Interior") and Rockies Express as discussed in Note 19 – Legal and 
Environmental Matters.

Interest expense, net. Interest expense of $89.3 million for the year ended December 31, 2017 was primarily composed of 

interest and fees associated with the TEP and Tallgrass Equity revolving credit facilities and the 2024 Notes issued on 
September 1, 2016 and May 16, 2017, and the 2028 Notes issued on September 15, 2017 and December 11, 2017. Interest 
expense of $45.6 million for the year ended December 31, 2016 was primarily composed of interest and fees associated with 
TEP and Tallgrass Equity revolving credit facilities and the 2024 Notes issued on September 1, 2016. The increase in interest 
and fees is primarily due to increased borrowings to fund a portion of our acquisitions, as discussed further in Note 3 –
 Acquisitions and Dispositions, as well as the higher borrowing rate on the 2024 and 2028 Notes, the proceeds of which were 
used to repay borrowings under TEP's revolving credit facility.

Gain on remeasurement of unconsolidated investment. Gain on remeasurement of unconsolidated investment of $9.7 
million for the year ended December 31, 2017 was related to the remeasurement to fair value of our existing 20% membership 
interest in Deeprock Development in connection with TEP's acquisition of a controlling financial interest in Deeprock 
Development in July 2017. For additional information, see Note 3 – Acquisitions and Dispositions.

Other income, net. Other income, net typically includes rental income and income earned from certain customers related to 

the capital costs we incurred to connect these customers to our system. Other income for the year ended December 31, 2017 
was $3.1 million compared to $0.4 million for the year ended December 31, 2016. Other income of $3.1 million and $0.4 
million for the years ended December 31, 2017 and 2016 included a $1.9 million unrealized gain and a $1.3 million unrealized 
loss, respectively, on derivative instrument related to the change in fair value of the call option received from TD as part of the 
acquisition of an additional 31.3% membership interest in Pony Express as discussed further in Note 9 – Risk Management. 

Deferred income tax expense. Deferred income tax expense for the year ended December 31, 2017 was $208.5 million 

compared to a deferred income tax expense of $17.7 million for the year ended December 31, 2016. The increase in deferred 
income tax expense was primarily driven by the remeasurement of the deferred tax asset as a result of the federal rate change 
under the tax legislation referred to as the Tax Cuts and Jobs Act that was signed into law on December 22, 2017, as well as the 
increase in taxable income, primarily attributable to the increased equity in earnings associated with Rockies Express as a result 
of the Ultra settlement. For additional information, see Note 17 – Income Taxes.

72

The following provides a summary of our Natural Gas Transportation segment results of operations for the periods 

indicated:

Segment Financial Data – Natural Gas Transportation (1)

2018

2017

2016

Year Ended December 31,

(in thousands)

Revenues:

Natural gas transportation services ......................................................... $
Sales of natural gas, NGLs, and crude oil...............................................

Processing and other revenues ................................................................

131,555

$

129,058

$

125,603

1,195

7,709

3,412

8,551

3,241

6,253

Total revenues.....................................................................................

140,459

141,021

135,097

Operating costs and expenses:

Cost of sales ............................................................................................

Cost of transportation services ................................................................

Operations and maintenance ...................................................................

Depreciation and amortization ................................................................

General and administrative .....................................................................

Taxes, other than income taxes ...............................................................

Total operating costs and expenses ....................................................

1,382

2,990

27,185

19,442

15,279
4,595

70,873

2,767

2,852

28,910

19,180

15,385
4,493

73,587

Operating income......................................................................................... $

69,586

$

67,434

$

3,804

5,051

28,458

20,976

16,335
4,338

78,962

56,135

(1)  Segment results as presented represent total revenue and operating income, including intersegment activity. For 

reconciliations to the consolidated financial data, see Note 20 – Reportable Segments.

Year Ended December 31, 2018 Compared to the Year Ended December 31, 2017 

Revenues. Natural Gas Transportation segment revenues were $140.5 million for the year ended December 31, 2018 
compared to $141.0 million for the year ended December 31, 2017, which represents a decrease of $0.6 million in segment 
revenues due to a $2.2 million decrease in sales of natural gas driven by decreased volumes sold and a $0.8 million decrease in 
other revenues driven by a decrease in the management fee received by NatGas as a result of the Ultra settlement recognized 
during the year ended December 31, 2017, as discussed in Note 19 – Legal and Environmental Matters, partially offset by a 
$2.5 million increase in natural gas transportation services due to increased revenue associated with increased throughput and 
contracted capacity in the second quarter of 2018 and colder weather in the first quarter of 2018, both resulting in higher 
volumes transported during the first half of 2018.

Operating costs and expenses. Operating costs and expenses in the Natural Gas Transportation segment were $70.9 million 

for the year ended December 31, 2018 compared to $73.6 million for the year ended December 31, 2017, which represents a 
decrease of $2.7 million, or 4%. The overall decrease in operating costs and expenses was primarily due to a $1.7 million 
decrease in operations and maintenance costs driven by decreased pipeline integrity work and a $1.4 million decrease in cost of 
sales driven by decreased volumes of natural gas sold, partially offset by a $0.3 million increase in depreciation and 
amortization costs.

Year Ended December 31, 2017 Compared to the Year Ended December 31, 2016

Revenues. Natural Gas Transportation segment revenues were $141.0 million for the year ended December 31, 2017 
compared to $135.1 million for the year ended December 31, 2016, which represents an increase of $5.9 million, or 4%, in 
segment revenues due to a $3.5 million increase in natural gas transportation services, a $2.3 million increase in other revenue, 
and a $0.2 million increase in sales of natural gas. The $3.5 million increase in natural gas transportation services was driven by 
increased tariff rates at TIGT, partially offset by a change in the fuel recovery structure, beginning May 1, 2016 as a result of 
the rate case settlement discussed in Note 18 – Regulatory Matters, as well as increased throughput volumes at Trailblazer. The 
$2.3 million increase in other revenues was primarily attributable to the increased management fee received by NatGas as a 
result of the Ultra settlement discussed above.

Operating costs and expenses. Operating costs and expenses in the Natural Gas Transportation segment were $73.6 million 

for the year ended December 31, 2017 compared to $79.0 million for the year ended December 31, 2016, which represents a 
decrease of $5.4 million, or 7%. The overall decrease in operating costs and expenses was primarily due to a $2.2 million 
decrease in the cost of transportation services, a $1.8 million decrease in depreciation and amortization, and a $1.0 million 
decrease in cost of sales. The $2.2 million decrease in the cost of transportation services was driven by lower costs associated 
73

 
with fuel reimbursements as a result of changes to TIGT's fuel recovery structure and the $1.8 million decrease in depreciation 
and amortization was driven by changes in depreciation rates at TIGT, both as a result of the 2016 rate case settlement 
discussed above. The $1.0 million decrease in cost of sales was driven by decreased volumes sold as well as a lower of cost and 
net realizable value inventory adjustment during the year ended December 31, 2016.

The following provides a summary of our Crude Oil Transportation segment results of operations for the periods indicated:

Segment Financial Data – Crude Oil Transportation (1)

2018

Year Ended December 31,

2017
(in thousands)

2016

437,653

$

353,395

$

374,949

Revenues:

Crude oil transportation services............................................................. $
Sales of natural gas, NGLs, and crude oil...............................................

Processing and other revenues ................................................................

Total revenues.....................................................................................

Operating costs and expenses:

Cost of sales ............................................................................................

Cost of transportation services ................................................................

Operations and maintenance ...................................................................

Depreciation and amortization ................................................................

General and administrative .....................................................................

Taxes, other than income taxes ...............................................................

6,290

511

444,454

8,334

68,184
12,896

54,237

18,486

24,009

11,179

—

364,574

9,680

57,284
11,838

52,364

20,906

22,332

Total operating costs and expenses ....................................................

186,146

174,404

Operating income......................................................................................... $

258,308

$

190,170

$

(1)  Segment results as presented represent total revenue and operating income, including intersegment activity. For 

reconciliations to the consolidated financial data, see Note 20 – Reportable Segments.

Year Ended December 31, 2018 Compared to the Year Ended December 31, 2017

5,554

—

380,503

4,728

55,519
13,075

51,362

20,650

19,385

164,719

215,784

Revenues. Crude Oil Transportation segment revenues were $444.5 million for the year ended December 31, 2018 
compared to $364.6 million for the year ended December 31, 2017, which represents an increase of $79.9 million, or 22%, in 
segment revenues driven by an $84.3 million increase in crude oil transportation services, partially offset by a $4.9 million 
decrease in sales of crude oil primarily due to decreased volumes sold during the year ended December 31, 2018. The increase 
in crude oil transportation services revenue was primarily driven by a $55.4 million increase in committed volume shipments, a 
$37.2 million increase in walk-up barrels shipped, a $6.4 million increase due to the FERC annual index adjustments effective 
July 1, 2018, and a $5.6 million increase in PLA revenue. These increases were partially offset by a $24.4 million net decrease 
in revenue from a committed shipper that extended its contract during the fourth quarter of 2017, thereby paying a lower tariff 
rate, which was partially offset by increased volumes shipped. 

Operating costs and expenses. Operating costs and expenses in the Crude Oil Transportation segment were $186.1 million 
for the year ended December 31, 2018 compared to $174.4 million for the year ended December 31, 2017, which represents an 
increase of $11.7 million, or 7%. The overall increase in operating costs and expenses was primarily driven by a $10.9 million 
increase in cost of transportation services driven by higher throughput volumes during the year ended December 31, 2018 
compared to the year ended December 31, 2017, a $1.9 million increase in depreciation and amortization costs due to assets 
placed into service in 2018, and a $1.7 million increase in taxes, other than income taxes driven by an increase in property tax 
assessment estimates. These increases were partially offset by a $2.4 million decrease in general and administrative costs and a 
$1.3 million decrease in cost of sales driven by decreased volumes sold.

Year Ended December 31, 2017 Compared to the Year Ended December 31, 2016 

Revenues. Crude Oil Transportation segment revenues were $364.6 million for the year ended December 31, 

2017 compared to $380.5 million for the year ended December 31, 2016, which represents a decrease of $15.9 million, or 4%, 
in segment revenues driven by a $21.6 million decrease in crude oil transportation services, primarily due to a $27.1 million 
increase in shipper deficiency payments that are not recognized in revenue and a $9.9 million decrease in the incremental 
barrels delivered during the year ended December 31, 2017 compared to the year ended December 31, 2016, partially offset by 
a $7.8 million increase in committed barrels shipped and a $7.0 million increase in walk-up barrels shipped. The decrease in 

74

crude oil transportation services was partially offset by a $5.6 million increase in sales of crude oil primarily due to increased 
volumes of crude oil sold during the year ended December 31, 2017 compared to the year ended December 31, 2016.

Operating costs and expenses. Operating costs and expenses in the Crude Oil Transportation segment were $174.4 

million for the year ended December 31, 2017 compared to $164.7 million for the year ended December 31, 2016 which 
represents an increase of $9.7 million, or 6%. The overall increase in operating costs and expenses was primarily driven by a 
$5.0 million increase in cost of sales primarily due to increased volumes of crude oil sold during the year ended December 31, 
2017, a $2.9 million increase in taxes, other than income taxes, driven by assets placed in-service throughout 2016, and a $1.8 
million increase in cost of transportation services as a result of amendments to the Deeprock Terminal lease agreement, 
resulting in the non-cash write off of upfront payments in the fourth quarter of 2017, partially offset by lower lease payments 
during the third and fourth quarters of 2017. The increased cost of transportation services during the year ended December 31, 
2017 as a result of the Deeprock Terminal lease was partially offset by higher electric costs as a result of pressure restrictions 
during the year ended December 31, 2016. The cost increases during the year ended December 31, 2017 were partially offset by 
a $1.2 million decrease in operations and maintenance costs due to the timing of pipeline integrity work.

The following provides a summary of our Gathering, Processing & Terminalling segment results of operations for the 

periods indicated:

Segment Financial Data – Gathering, Processing & Terminalling (1)

2018

2017

2016

Year Ended December 31,

Revenues:

Sales of natural gas, NGLs, and crude oil............................................... $
Processing and other revenues ................................................................

Total revenues.....................................................................................

Operating costs and expenses:

Cost of sales ............................................................................................

Cost of transportation services ................................................................

Operations and maintenance ...................................................................

Depreciation and amortization ................................................................

General and administrative .....................................................................

Taxes, other than income taxes ...............................................................

Contract termination ...............................................................................

(Gain) loss on disposal of assets .............................................................

Total operating costs and expenses ....................................................

(in thousands)

161,101

$

93,998

$

118,564

279,665

105,985

52,327

32,379

32,369

12,877

3,206

—
(11,043)
228,100

92,213

186,211

80,088

20,650

21,321

19,256

10,035

2,007

—
(599)
152,758

Operating income (loss)............................................................................... $

51,565

$

33,453

$

(1)  Segment results as presented represent total revenue and operating income, including intersegment activity. For 

reconciliations to the consolidated financial data, see Note 20 – Reportable Segments.

Year Ended December 31, 2018 Compared to the Year Ended December 31, 2017

68,698

44,835

113,533

63,746

3,942

13,537

13,909

7,715

1,677

8,061

1,849

114,436
(903)

Revenues. Gathering, Processing & Terminalling segment revenues were $279.7 million for the year ended December 31, 
2018 compared to $186.2 million for the year ended December 31, 2017, which represents a $93.5 million, or 50%, increase in 
segment revenues. The increase in segment revenues was primarily due to a $67.1 million increase in sales of natural gas, 
NGLs, and crude oil and a $26.4 million increase in processing and other revenues. The increase in sales of natural gas, NGLs, 
and crude oil was driven by (i) increased crude oil sales of $30.3 million at Stanchion, (ii) increased sales of NGLs of $24.2 
million primarily due to higher throughput volumes and increased volumes sold driven by the Douglas Gathering System 
acquisition in June 2017 and higher NGL prices, and (iii) increased sales of natural gas of $12.3 million due to sales of residue 
gas from the Douglas Gathering System. The increase in processing and other revenues was driven by (i) increased terminal 
services revenue of $16.2 million driven by the acquisition of Deeprock North in January 2018 and the acquisition of a 
controlling interest in, and subsequent consolidation of, Deeprock Development in July 2017, (ii) increased water business 
services revenue of $7.6 million driven by the acquisition of BNN North Dakota in January 2018 and increased produced water 
disposal volumes, partially offset by decreased fresh water transportation volumes, and (iii) increased processing fee income of 
$3.9 million primarily driven by changes in the accounting treatment of certain commodities retained as consideration for 

75

processing services to processing fee revenue beginning January 1, 2018 as discussed further in Note 12 – Revenue from 
Contracts with Customers.

Operating costs and expenses. Operating costs and expenses in the Gathering, Processing & Terminalling segment were 

$228.1 million for the year ended December 31, 2018 compared to $152.8 million for the year ended December 31, 2017, 
which represents an increase of $75.3 million, or 49%. The increase in operating costs and expenses was primarily driven by (i) 
an increase of $31.7 million in cost of transportation services due to crude oil transportation fees paid by Stanchion, partially 
offset by decreased fresh water transportation volumes and associated costs, (ii) a $25.9 million increase in cost of sales 
primarily due to higher NGL prices, higher throughput volumes, and increased volumes sold driven by the Douglas Gathering 
System acquisition as discussed above, and (iii) increases of $13.1 million, $11.1 million, and $2.8 million in depreciation and 
amortization, operations and maintenance costs, and general and administrative costs, respectively, all primarily driven by the 
2018 acquisitions of BNN North Dakota and Deeprock North and the 2017 acquisitions of the Douglas Gathering System and 
Deeprock Development. The increase in operating costs and expenses was partially offset by the $11.0 million gain on disposal 
of assets, primarily driven by the gain on the disposal of TCG during the year ended December 31, 2018, compared to the $0.6 
million gain on disposal of assets during the year ended December 31, 2017.

Year Ended December 31, 2017 Compared to the Year Ended December 31, 2016 

Revenues. Gathering, Processing & Terminalling segment revenues were $186.2 million for the year ended December 31, 
2017 compared to $113.5 million for the year ended December 31, 2016, which represents a $72.7 million, or 64% increase in 
segment revenues. The increase in segment revenues was primarily due to a $47.4 million increase in processing and other 
revenues and a $25.3 million increase in sales of natural gas, NGLs, and crude oil. The increase in processing and other 
revenues was driven by (i) increased water business services revenue of $29.8 million as a result of increased fresh water 
supply and produced water disposal volumes; (ii) increased terminalling services revenue of $11.0 million driven by the 
acquisition of a controlling interest in and subsequent consolidation of Deeprock Development in July 2017; and (iii) increased 
fee income of $6.1 million driven by the acquisition of the Douglas Gathering System in June 2017. The increase in sales of 
natural gas, NGLs, and crude oil was driven by a 36% increase in NGL prices and sales of residue gas from the Douglas 
Gathering System, partially offset by lower volumes of NGLs sold during the year ended December 31, 2017 as a result of take 
in kind elections in effect for parts of 2017 under two major processing agreements.

Operating costs and expenses. Operating costs and expenses in the Gathering, Processing & Terminalling segment were 

$152.8 million for the year ended December 31, 2017 compared to $114.4 million for the year ended December 31, 2016, 
which represents an increase of $38.3 million, or 33%. The increase in operating costs and expenses was driven by (i) a $16.7 
million increase in cost of transportation services primarily driven by increased volumes in water business services as discussed 
above and crude oil transportation fees paid by Stanchion during the year ended December 31, 2017; (ii) a $16.3 million 
increase in cost of sales primarily driven by higher producer settlements and higher NGL sales attributable to the acquisition of 
the Douglas Gathering System in 2017 as discussed above; and (iii) increases of $7.8 million, $5.3 million, and $2.3 million in 
operations and maintenance costs, depreciation and amortization, and general and administrative costs, respectively, all 
primarily driven by the 2017 acquisitions of the Douglas Gathering System, the PRB Crude System, and Deeprock 
Development. These increases were partially offset by a $8.1 million contract termination fee as a result of the buyout of an 
operating agreement at the Sterling Terminal during the year ended December 31, 2016 and a $2.4 million decrease in (gain) 
loss on disposal of assets primarily driven by a gain on disposal of assets from insurance proceeds received during the year 
ended December 31, 2017 related to assets destroyed by a fire caused by a lightning strike during the year ended December 31, 
2016.

Liquidity and Capital Resources Overview

Our primary sources of liquidity for the year ended December 31, 2018 were cash generated from operations, proceeds 
from TEP's issuance of senior notes, and borrowings under TEP's revolving credit facility. We expect our sources of liquidity in 
the future to include:

• 

• 

• 

cash generated from our operations;

borrowing capacity available under TEP's revolving credit facility; and

future issuances of additional equity and/or debt securities.

We believe that cash on hand, cash generated from operations, and availability under TEP's revolving credit facility will be 

adequate to meet our operating needs, our planned short-term maintenance capital and debt service requirements, and our 
planned cash dividends to shareholders. We believe that future internal growth projects or potential acquisitions will be funded 
primarily through a combination of cash generated from operations, borrowings under TEP's revolving credit facility and 
issuances of debt and/or equity securities. For additional information regarding our revolving credit facilities and senior 

76

unsecured notes, see Note 10 – Long-term Debt. For additional information regarding our equity transactions, see Note 11 – 
Partnership Equity.

Our total liquidity as of December 31, 2018 and 2017 was as follows:

December 31, 2018

December 31, 2017

Cash on hand ................................................................................................... $
Total capacity under the TEP revolving credit facility (1)................................
Less: Outstanding borrowings under the TEP revolving credit facility .....
Less: Letters of credit issued under the TEP revolving credit facility .......

Available capacity under the TEP revolving credit facility ............................

Total capacity under the Tallgrass Equity revolving credit facility ................

Less: Outstanding borrowings under the Tallgrass Equity revolving 
credit facility (2) ..........................................................................................
Available capacity under the Tallgrass Equity revolving credit facility .........
Total liquidity .................................................................................................. $

(in thousands)

9,596

$

2,250,000
(1,224,000)
(94)
1,025,906

—

—

—

1,035,502

$

2,593

1,750,000
(661,000)
(94)
1,088,906

150,000

(146,000)
4,000

1,095,499

(1) 

In July 2018, the TEP revolving credit facility was amended, increasing the total capacity to $2.25 billion. See Note 10 
– Long-term Debt for additional information.

(2)  On July 26, 2018, Tallgrass Equity repaid all outstanding borrowings and terminated its revolving credit facility. See 

Note 10 – Long-term Debt for additional information.

Working Capital

Working capital is the amount by which current assets exceed current liabilities. While various other factors may impact 
our working capital requirements from period to period, our working capital requirements have typically been, and we expect 
will continue to be, driven by changes in accounts receivable, accounts payable and deferred revenue. We manage our working 
capital needs through borrowings and repayments of borrowings under TEP's revolving credit facility. Factors impacting 
changes in accounts receivable and accounts payable could include the timing of collections from customers, payments to 
suppliers, and the level of spending for capital expenditures. Changes in the market prices of energy commodities that we buy 
and sell in the normal course of business can also impact the timing of changes in accounts receivable and accounts payable. 
Factors impacting deferred revenue include the volume of barrels transported, the amount of deficiency payments received, and 
the volume of prior deficiencies utilized during the period.

As of December 31, 2018, we had a working capital deficit of $146.9 million compared to a working capital deficit of 

$101.6 million at December 31, 2017, which represents an increase in the working capital deficit of $45.4 million. The 
overall increase in the working capital deficit was primarily attributable to changes in the following components:

• 

• 

• 

• 

an increase in accounts payable and accrued liabilities of $110.0 million primarily due to crude oil purchases at 
Stanchion, an increase in accrued payroll, an increase in capital expenditures at Terminals, and payables related to 
BNN North Dakota and NGL Water Solutions Bakken acquired in January 2018 and November 2018, respectively, 
partially offset by a decrease in capital expenditures at Pony Express;

an increase in other current liabilities of $31.7 million, primarily driven by the recognition of a $25 million liability at 
PLT as discussed in Note 3 – Acquisitions and Dispositions;

an increase in deferred revenue of $22.6 million primarily from deficiency payments collected by Pony Express and 
deferred revenue at BNN Colorado, which was consolidated in December 2018; and

an increase in accrued interest of $14.1 million primarily due to increased borrowings to fund a portion of our 2018 
acquisitions, as well as the higher borrowing rate on the Senior Notes, the proceeds of which were used to repay 
borrowings under TEP's revolving credit facility.

77

 
 
These working capital decreases were partially offset by:

• 

• 

an increase in accounts receivable of $116.1 million primarily due to crude oil sales at Stanchion, as well as 
receivables related to BNN North Dakota assets acquired during 2018, and BNN Colorado, which was consolidated in 
December 2018; and 

an increase in inventory of $12.7 million primarily due to crude oil purchases at Stanchion and PLA barrels retained at 
Pony Express.

A material adverse change in operations, available financing under our revolving credit facility, or available financing from 

the equity or debt capital markets could impact our ability to fund our requirements for liquidity and capital resources in the 
future.

Cash Flows

The following table and discussion presents a summary of our cash flow for the periods indicated:

Year Ended December 31,

2018

2017
(in thousands)

2016

Net cash provided by (used in):

Operating activities .......................................................... $
Investing activities ........................................................... $
Financing activities .......................................................... $

672,525
$
(987,212) $
$
321,690

571,396
$
(898,541) $
$
327,279

413,298
(595,539)
182,466

Year Ended December 31, 2018 Compared to the Year Ended December 31, 2017 

Operating Activities. Cash flows provided by operating activities were $672.5 million and $571.4 million for the years 
ended December 31, 2018 and 2017, respectively. The increase in net cash flows provided by operating activities of $101.1 
million was primarily driven by the increase in operating results, as discussed above, and a $69.7 million increase in 
distributions received from unconsolidated affiliates, primarily Rockies Express, as a result of our increased membership 
interest effective March 31, 2017 and February 7, 2018. These increases were partially offset by a net decrease in cash flows 
from changes in working capital driven by a $44.2 million decrease in net cash inflows from accounts receivable, primarily due 
to crude oil sales at Stanchion, partially offset by a $27.7 million decrease in net cash outflows from accounts payable, 
primarily due to crude oil purchases at Stanchion.

Investing Activities. Cash flows used in investing activities were $987.2 million for the year ended December 31, 2018, 

primarily driven by:

• 

• 

• 

• 

• 

• 

• 

contributions to unconsolidated investments in the amount of $473.9 million, primarily to fund our portion of the 
repayment of Rockies Express' $550 million of 6.85% senior notes due July 15, 2018, as well as to fund our share of 
capital projects at Iron Horse and BNN Colorado; 

capital expenditures of $368.9 million, primarily due to spending on the Cheyenne Connector, a new 70-mile natural 
gas pipeline located in Colorado, additional water gathering infrastructure located in North Dakota, a 55-mile 
extension on the Pony Express system, construction of the Buckingham Terminal expansion, construction of the 
Guernsey, Natoma, and Grasslands Terminals, and pipe replacement and remediation work on the Trailblazer Pipeline 
system as discussed in Note 19 – Legal and Environmental Matters;

cash outflows of $95.0 million for the acquisition of a 100% membership interest in BNN North Dakota; 

cash outflows of $91.0 million for the acquisition of a 100% membership interest in NGL Water Solutions Bakken;

cash outflows of $30.7 million for the initial capital contribution and formation of PLT;

cash outflows of $30.6 million for the acquisition of a 51% membership interest in Pawnee Terminal; and

cash outflows of $19.5 million for the acquisition of a 38% membership interest in Deeprock North.

These cash outflows were partially offset by cash inflows of:

• 

• 

$80.2 million of distributions received from unconsolidated affiliates in excess of cumulative earnings recognized, 
primarily Rockies Express; and

$50.0 million from the sale of TCG.

78

 
Cash flows used in investing activities were $898.5 million for the year ended December 31, 2017, primarily driven by:

• 

• 

• 

• 

• 

• 

cash outflows of $400.0 million for the acquisition of an additional 24.99% membership interest in Rockies Express;

capital expenditures of $145.1 million, primarily due to spending on an additional freshwater connection at Water 
Solutions, a connection to a refinery complex on the Pony Express System, a 55-mile extension on the Pony Express 
System, and remediation digs on the Pony Express System as discussed in Note 19 – Legal and Environmental 
Matters;

cash outflows of $140.0 million for the acquisition of Terminals and NatGas;

cash outflows of $128.5 million for the acquisition of the Douglas Gathering System;

cash outflows of $57.2 million for the acquisition of an additional 40% membership interest in Deeprock 
Development;

contributions to unconsolidated investments in the amount of $45.9 million, primarily to fund remaining costs 
associated with the Zone 3 Capacity Enhancement project at Rockies Express; and

• 

cash outflows of $36.0 million for the acquisition of the PRB Crude System.

These cash outflows were partially offset by $69.4 million of distributions received from Rockies Express in excess of 

cumulative earnings recognized.

Financing Activities. Cash flows provided by financing activities were $321.7 million for the year ended December 31, 

2018, primarily driven by:

• 

• 

proceeds of $500.0 million from the issuance of TEP's 2023 Notes; and

net borrowings under the revolving credit facilities of $417.0 million.

These financing cash inflows were partially offset by cash outflows of: 

• 

• 

• 

distributions to noncontrolling interests of $327.6 million, consisting of Tallgrass Equity distributions to the Exchange 
Right Holders of $223.7 million, distributions to TEP unitholders of $97.7 million, and distributions to Deeprock 
Development and Pony Express noncontrolling interests of $6.2 million;

dividends paid to Class A shareholders of $206.4 million; and

cash outflows of $50.0 million for the acquisition of an additional 2% membership interest in Pony Express. 

Cash flows provided by financing activities were $327.3 million for the year ended December 31, 2017, primarily driven 

by:

• 

• 

proceeds from TEP's issuance of $1.1 billion in aggregate principal amount of 2024 and 2028 Notes; and

net cash proceeds of $112.4 million from the issuance of 2,341,061 TEP common units under its Equity Distribution 
Agreements.

These cash inflows were partially offset by cash outflows of:

• 

• 

• 

• 

• 

• 

net repayments under the revolving credit facilities of $356.0 million;

distributions to noncontrolling interests of $317.1 million, consisting of distributions to TEP unitholders of $185.7 
million, Tallgrass Equity distributions to the Exchange Right Holders of $125.2 million, and distributions to Pony 
Express noncontrolling interests of $6.2 million;

dividends paid to Class A shareholders of $73.3 million;

$72.4 million for the exercise of the remainder of the call option granted by TD covering 1,703,094 TEP common 
units;

$35.3 million for the 736,262 TEP common units repurchased from TD; and

deferred financing costs of $22.4 million from the issuance of the 2024 and 2028 Notes and the amendment to TEP's 
revolving credit facility.

79

Year Ended December 31, 2017 Compared to the Year Ended December 31, 2016 

Operating Activities. Cash flows provided by operating activities were $571.4 million and $413.3 million for the years 
ended December 31, 2017 and 2016, respectively. The increase in net cash flows provided by operating activities of $158.1 
million was primarily driven by a $182.7 million increase in distributions received from Rockies Express as a result of the Ultra 
settlement received in July 2017 as well as our increased membership interest during the year ended December 31, 2017.

Investing Activities. Cash flows used in investing activities were $898.5 million for the year ended December 31, 2017. 

Investing cash outflows for the year ended December 31, 2017 were primarily driven by 2017 acquisitions, capital 
expenditures, and contributions to Rockies Express, as discussed above.

Cash flows used in investing activities were $595.5 million for the year ended December 31, 2016, primarily driven by:

• 

• 

• 

• 

cash outflows of $436.0 million for the acquisition of a 25% membership interest in Rockies Express;

capital expenditures of $84.5 million, primarily due to post in-service spending on Pony Express System projects, the 
Pipeline Integrity Management Program at Trailblazer, and costs associated with construction of the Buckingham 
Terminal;

contributions to unconsolidated investments in the amount of $50.1 million, primarily to fund costs associated with the 
Zone 3 Capacity Enhancement project at Rockies Express; and

cash outflows of $49.1 million for a portion of the acquisition of an additional 31.3% membership interest in Pony 
Express, the remainder of which is classified as a financing activity as discussed below.

These cash outflows were partially offset by $24.1 million of distributions received from Rockies Express in excess of 

cumulative earnings recognized.

Financing Activities. Cash flows provided by financing activities were $327.3 million for the year ended December 31, 
2017, primarily driven by proceeds from the issuance of the 2024 and 2028 Notes and issuance of TEP common units, partially 
offset by net repayments under the revolving credit facilities, distributions to noncontrolling interests, dividends paid to Class A 
shareholders, the partial exercise of the call option granted by TD, the repurchase of common units from TD, and payments for 
deferred financing costs, as discussed above. 

Cash flows provided by financing activities were $182.5 million for the year ended December 31, 2016, primarily driven 

by: 

• 

• 

• 

• 

• 

proceeds from TEP's issuance of $400.0 million in aggregate principal amount of 2024 Notes;

net cash proceeds of $337.7 million from the issuance of 7,696,708 TEP common units under its Equity Distribution 
Agreements;

net borrowings under the TEP revolving credit facility of $262.0 million;

net cash proceeds of $90.0 million from TEP's issuance of 2,416,987 common units representing limited partnership 
interests in a private placement transaction; and

contributions from TD of $17.9 million, which consisted of contributions from TD to TEP in order to indemnify TEP 
for any out of pocket costs incurred between April 1, 2014 and April 1, 2017 related to repairing or remediating the 
Trailblazer Pipeline, as discussed further in Note 19 – Legal and Environmental Matters.

These cash inflows were partially offset by cash outflows of:

• 

• 

• 

• 

$425.9 million for the portion of the acquisition of an additional 31.3% membership interest in Pony Express which 
exceeds the cumulative capital spending on the underlying assets acquired;

distributions to noncontrolling interests of $249.1 million, consisting of distributions to TEP unitholders of $145.1 
million, Tallgrass Equity distributions to the Exchange Right Holders of $97.5 million, and distributions to Pony 
Express and Water Solutions noncontrolling interests of $6.5 million;

$204.6 million for TEP's partial exercise of the call option granted by TD covering 4,814,906 TEP common units; and

dividends paid to TGE Class A shareholders of $42.5 million.

80

Dividends

Dividends to our Class A shareholders. We distribute 100% of TGE's available cash at the end of each quarter to Class A 

shareholders of record beginning with the quarter ended June 30, 2015. Available cash at TGE is generally defined in our 
partnership agreement as all cash and cash equivalents on hand at the date of determination in respect of such quarter less 
reserves established in the discretion of our general partner for future requirements. For a discussion of factors and trends 
impacting our business, which in turn impacts our ability to pay dividends to our Class A shareholders, please see "—Factors 
and Trends Impacting Our Business" above.

Our dividend for the three months ended December 31, 2018, in the amount of $0.5200 per Class A share, or $81.3 

million in the aggregate, was announced on January 15, 2019 and will be paid on February 14, 2019 to Class A shareholders of 
record on January 31, 2019.

Capital Requirements

The midstream energy business can be capital-intensive, requiring significant investment to maintain and upgrade existing 

operations. Our capital requirements have consisted primarily of, and we anticipate will continue to consist of, the following:

•  maintenance capital expenditures, which are cash expenditures incurred (including expenditures for the construction or 
development of new capital assets) that we expect to maintain our long-term operating income or operating capacity. 
These expenditures typically include certain system integrity, compliance and safety improvements; and

• 

expansion capital expenditures, which are cash expenditures we expect will increase our operating income or 
operating capacity over the long-term. Expansion capital expenditures include acquisitions or capital improvements 
(such as additions to or improvements on the capital assets owned, or acquisition or construction of new capital 
assets).

The determination of capital expenditures as maintenance or expansion is made at the individual asset level during our 

budgeting process and as we approve, execute, and monitor our capital spending. We expect to incur approximately $270 
million for expansion capital projects and approximately $40 million for maintenance capital expenditures in 2019. The 
following table summarizes the maintenance and expansion capital expenditures incurred at our consolidated entities:

Year Ended December 31,

2018

2017
(in thousands)

2016

Maintenance capital expenditures ....................... $
Expansion capital expenditures...........................

Total capital expenditures incurred ................ $

20,956
353,672
374,628

$

$

14,822
135,604
150,426

$

$

11,323
44,348
55,671

Capital expenditures incurred represent capital expenditures paid and accrued during the period. Capital expenditures are 
presented net of noncontrolling interest, and contributions and reimbursements received. The increase in maintenance capital 
expenditures to $21.0 million for the year ended December 31, 2018 from $14.8 million for the year ended December 31, 2017 
is primarily driven by increased expenditures in the Corporate and Other and Gathering, Processing & Terminalling segments. 
Maintenance capital expenditures for the year ended December 31, 2018 in the Corporate and Other segment consisted 
primarily of spending on information technology assets as a result of our acquisition of these assets from TD in February 2018 
as discussed in Note 3 – Acquisitions and Dispositions. Maintenance capital expenditures on our assets occur on a regular 
schedule, but most major maintenance projects are not required every year so the level of maintenance capital expenditures 
naturally varies from year to year and from quarter to quarter. Expansion capital expenditures were $353.7 million for the year 
ended December 31, 2018 compared to $135.6 million for the year ended December 31, 2017. Expansion capital expenditures 
for the year ended December 31, 2018 consisted primarily of spending on the Cheyenne Connector, additional water gathering 
infrastructure located in North Dakota, PLT, a 55-mile extension on the Pony Express system, construction of the Buckingham 
Terminal expansion, construction of the Guernsey, Natoma, and Grasslands Terminals, and pipe replacement and remediation 
work on the Trailblazer Pipeline system as discussed in Note 19 – Legal and Environmental Matters. Expansion capital 
expenditures for the year ended December 31, 2017 consisted primarily of spending on an additional freshwater connection at 
Water Solutions, construction of the Grasslands Terminal and the Natoma Terminal, a connection to a third-party refinery 
complex on the Pony Express System, and a 55-mile extension on the Pony Express System.

The increase in maintenance capital expenditures to $14.8 million for the year ended December 31, 2017 from $11.3 
million for the year ended December 31, 2016 is primarily driven by increased expenditures in the Crude Oil Transportation 
and Gathering, Processing & Terminalling segments. Expansion capital expenditures were $135.6 million for the year ended 
December 31, 2017 compared to $44.3 million for the year ended December 31, 2016. Expansion capital expenditures for 

81

 
the year ended December 31, 2017 consisted primarily of spending at Water Solutions, the Grasslands Terminal and the Natoma 
Terminal, and the Pony Express system, as discussed above. Expansion capital expenditures for the year ended December 31, 
2016 consisted primarily of post in-service spending on Pony Express System projects and costs associated with construction of 
the Buckingham Terminal.

During the years ended December 31, 2018, 2017, and 2016, we invested cash in unconsolidated affiliates, including 
Rockies Express, Iron Horse, and BNN Colorado prior to our consolidation of BNN Colorado in December 2018, of $473.9 
million, $45.9 million, and $50.1 million, respectively, to fund our share of capital projects, including (i) a special contribution 
of approximately $412.5 million to fund our portion of the repayment of Rockies Express' $550 million of 6.85% senior notes 
due July 15, 2018 and (ii) an initial contribution of $3.5 million to Iron Horse, a newly formed unconsolidated affiliate in 
February 2018. In connection with our 51% membership interest in Powder River Gateway effective January 1, 2019, we made 
commitments to fund our proportionate share of the remaining cost to construct the Iron Horse pipeline, estimated at $25.4 
million.

We intend to pay dividends to our Class A shareholders. Due to our cash distribution policy, we expect that we will 
distribute available cash to our Class A shareholders on a quarterly basis. We expect to fund future capital expenditures with 
funds generated from operations, borrowings under our revolving credit facility, and/or the issuance of equity or long-term 
debt. If these sources are not sufficient, we may reduce our discretionary spending.

Contractual Obligations

Following is a summary of our contractual cash obligations in future periods, representing amounts that were fixed and 

determinable as of December 31, 2018:

Payments Due By Period

Contractual Obligations

Debt obligations (1)....................................................
Interest on debt obligations (2)...................................
Operating lease and service contract obligations (3) .
Capital lease obligations (4).......................................
Land site lease and right-of-way (5) ..........................
Other purchase commitments (6) ...............................
Total

Total

Less Than 1
Year

1-3 Years
(in thousands)

3-5 Years

More Than
5 Years

$ 3,224,000

$

— $

— $ 1,724,000

$ 1,500,000

900,065

3,230

20,015

6,029

95,422

158,624

1,074

449

744

53,098

317,391

228,342

195,708

1,405

898

1,408

17,875

387

898

1,088

11,218

364

17,770

2,789

13,231

$ 4,248,761

$

213,989

$

338,977

$ 1,965,933

$ 1,729,862

(1)  Debt obligations at December 31, 2018 consisted of borrowings under the TEP revolving credit facility and the Senior 

Notes. For additional information, see Note 10 – Long-term Debt. 

(2) 

Interest on debt obligations is estimated using current borrowings and interest rates as of December 31, 2018. For 
additional information, see Note 10 – Long-term Debt.

(3)  Operating leases and service contracts consist of leases for office space and equipment. For additional information, see 

Note 13 – Commitments & Contingent Liabilities.

(4)  Capital lease obligations consist of the PLT land site lease. For additional information, see Note 13 – Commitments & 

Contingent Liabilities.

(5)  Land site lease and right-of-way contracts consist of payments to landowners, primarily in our Crude Oil Transportation 
and Natural Gas Transportation segments. For additional information, see Note 13 – Commitments & Contingent 
Liabilities.

(6)  Other purchase commitments primarily relate to planned non-reimbursable capital expenditures and operating and 

maintenance expenditures. 

All of our employees are employed by Tallgrass Management, LLC ("Tallgrass Management"). Prior to July 1, 2018, 
Tallgrass Management was a wholly-owned subsidiary of Tallgrass Energy Holdings. In connection with the closing of the TEP 
initial public offering on May 17, 2013, TEP and TEP GP entered into an Omnibus Agreement with Tallgrass Energy Holdings 
and certain of its affiliates (the "TEP Omnibus Agreement"). The TEP Omnibus Agreement provides that, among other things, 
TEP will reimburse Tallgrass Energy Holdings and its affiliates for all expenses they incur and payments they make on TEP's 

82

behalf, including the costs of employee and director compensation and benefits as well as the cost of the provision of certain 
centralized corporate functions performed by Tallgrass Energy Holdings and its affiliates, including legal, accounting, cash 
management, insurance administration and claims processing, risk management, health, safety and environmental, information 
technology and human resources in each case to the extent reasonably allocable to TEP. In addition, in connection with the 
closing of the TGE initial public offering on May 12, 2015 (the "TGE IPO"), TGE entered into an Omnibus Agreement (the 
"TGE Omnibus Agreement") with Tallgrass Energy GP, LLC (formerly known as TEGP Management, LLC), Tallgrass Equity 
and Tallgrass Energy Holdings. Effective July 1, 2018, Tallgrass Management was contributed to Tallgrass Equity in 
connection with the TEP Merger. As a result, the costs of employer and director compensation and benefits are now incurred 
directly by Tallgrass Equity.

Off-Balance Sheet Arrangements

We do not have any off-balance sheet arrangements.

Critical Accounting Estimates

Our significant accounting policies and the anticipated impact of recently issued accounting standards are described in 
Note 2 – Summary of Significant Accounting Policies. Management's discussion and analysis of financial condition and results 
of operations are based upon our financial statements, which have been prepared in accordance with GAAP. The preparation of 
these financial statements requires management to make estimates and judgments that affect the reported amounts of assets, 
liabilities, revenues and expenses and the related disclosure of contingent assets and liabilities. The accounting policies 
discussed below are considered by management to be critical to an understanding of our financial statements as their 
application places the most significant demands on management's judgment. Due to the inherent uncertainties involved with 
this type of judgment, actual results could differ significantly from estimates and may have a material adverse impact on our 
results of operations, equity or cash flows. For additional information concerning our other accounting policies, please read the 
notes to the financial statements included in this report.

Description

Judgments and Uncertainties

Effect if Actual Results Differ from
Assumptions

Business Combinations
We allocate the cost of each
acquired entity to the assets
and liabilities assumed
based on their estimated
fair values at the date of
acquisition. If the initial
accounting for the business
combination is incomplete
when the combination
occurs, an estimate will be
recorded. We are required
to recognize intangible
assets separately from
goodwill. Any excess
purchase price after the fair
value of the net tangible
and identifiable intangible
assets acquired, as well as
noncontrolling interest, if
applicable, is determined is
recognized as goodwill.

We measure the fair value of assets acquired
and liabilities assumed in business
combinations using widely accepted valuation
techniques, primarily discounted cash flow, cost
approach, and market multiple analyses. These
types of analyses require us to make
assumptions and estimates regarding industry
and economic factors and the profitability of
future business strategies. These analyses
require management to apply significant
judgment in estimating future cash flows as
well as fair values of individual assets,
including forecasting useful lives of the assets,
assessing the probability of different outcomes,
including anticipated volumes, contract
renewals and changes in our regulated rates, and
selecting the discount rate that reflects the risk
inherent in future cash flows.

If estimates or assumptions used to
complete the purchase price allocation and
estimate the fair value of acquired assets,
liabilities and noncontrolling interests
significantly differed from assumptions
made, the allocation of purchase price
between goodwill, intangibles,
noncontrolling interests, equity method
investments and property, plant, and
equipment could significantly differ. Such a
difference would impact future earnings
through depreciation and amortization
expense. In addition, if forecasts supporting
the valuation of the intangible assets or
goodwill are not achieved, impairments
could arise. Further, if customer
relationships terminate prior to the
expected useful life, we will be required to
record a charge to operations to write-off
any remaining unamortized balance of the
intangible asset assigned to that customer.

83

Description

Judgments and Uncertainties

Effect if Actual Results Differ from
Assumptions

Using the impairment review methodology 
described herein, we have not recorded any 
impairment charges on long-lived assets 
during the year ended December 31, 2018. 
If actual results are not consistent with our 
assumptions and estimates or our 
assumptions and estimates change due to 
new information, we may be exposed to an 
impairment charge. A prolonged period of 
lower commodity prices may adversely 
affect our estimate of future operating 
results, which could result in future 
impairment due to the potential impact on 
our operations and cash flows.

If our assumptions are not appropriate, or
future events indicate that our goodwill is
impaired, our net income would be
impacted by the amount by which the
carrying value exceeds the fair value of the
reporting unit, to the extent of the balance
of goodwill. A prolonged period of lower
commodity prices may adversely affect our
estimate of future operating results, which
could result in future goodwill impairment
for reporting units due to the potential
impact on our operations and cash flows.
We completed our impairment testing of
goodwill in the third quarter of 2018 using
the methodology described herein, and
determined there was no impairment.

We review our long-lived assets for impairment 
whenever events or changes in circumstances 
indicate that the carrying amount of an asset 
may not be recoverable. Our impairment 
analyses require management to apply judgment 
in estimating future cash flows as well as asset 
fair values, including forecasting useful lives of 
the assets, assessing the probability of different 
outcomes, including anticipated volumes, 
contract renewals and changes in our regulated 
rates, and selecting the discount rate that 
reflects the risk inherent in future cash flows. If 
the carrying value is not recoverable, we assess 
the fair value of long-lived assets using a 
discounted cash flow model and other 
commonly accepted techniques.

Impairment of Long-lived Assets
We periodically evaluate
whether the carrying value
of long-lived assets has
been impaired when
circumstances indicate the
carrying value of those
assets may not be
recoverable. This
evaluation is based on
undiscounted cash flow
projections expected to be
realized over the remaining
useful life of the primary
asset. The carrying amount
is not recoverable if it
exceeds the sum of
undiscounted cash flows
expected to result from the
use and eventual disposition
of the asset. If the carrying
value is not recoverable, the
impairment loss is
measured as the excess of
the asset's carrying value
over its fair value.

Impairment of Goodwill
We evaluate goodwill for
impairment annually in the
third quarter, and whenever
events or changes in
circumstances indicate it is
more likely than not that the
fair value of a reporting
unit is less than its carrying
amount.

We use either the qualitative assessment option
or proceed directly to the quantitative
impairment test depending on facts and
circumstances of the reporting unit, including
the forecasted useful lives of the assets, the
probability of different outcomes, including
anticipated volumes, contract renewals and
changes in our regulated rates, and the discount
rate that reflects the risk inherent in future cash
flows. When quantitative assessments are made,
we determine fair value using widely accepted
valuation techniques, primarily discounted cash
flow and market multiple analyses. These types
of analyses require us to make assumptions and
estimates regarding industry and economic
factors and the profitability of future business
strategies. Our impairment analyses require
management to apply judgment in estimating
future cash flows. We incorporate current
market information, as well as historical and
other factors, into our forecasted commodity
prices. Key assumptions in the analysis include
the use of an appropriate discount rate, terminal
year multiples, and estimated future cash flows,
including an estimate of operating and general
and administrative costs. It is our policy to
conduct impairment testing based on our current
business strategy in light of present industry and
economic conditions, as well as future
expectations.

84

Description

Judgments and Uncertainties

Effect if Actual Results Differ from
Assumptions

We review our deferred revenue (contract
liabilities) at each balance sheet date to
determine the probability that our customers
will exercise their remaining rights. We
recognize revenue when the probability
becomes remote that the customer will exercise
its remaining rights. Our evaluation requires
management to apply judgment in contract
renewal assumptions and estimating future
system capacity and the ability of our customers
to utilize that capacity.

If actual results are not consistent with our
assumptions and estimates, or our
assumptions and estimates change due to
new information, the timing of our revenue
recognition with respect to deferred
revenue could be impacted and we may
experience material changes in revenue.

Revenue Recognition
The majority of our revenue
is derived from long-term
contracts that can span
several years. Accounting
for long-term contracts
involves the use of various
techniques to estimate total
contract revenue and
determine the timing of
revenue recognition. We
periodically evaluate our
estimates with respect to the
probability of our customers
exercising their rights and
recognize revenue
associated with contract
liabilities when the
probability becomes remote
that the customer will
exercise its remaining
rights.

Item 7A. Quantitative and Qualitative Disclosures About Market Risk

Commodity Price Risk

For the year ended December 31, 2018, the percentage of our firm fee, volumetric fee, and commodity exposed Adjusted 
EBITDA was 90%, 6%, and 4%, respectively. Historically, we have had a limited amount of direct commodity price exposure 
related to natural gas collected for electrical compression costs at TIGT, natural gas used at TMID and crude oil collected as 
part of our contractual pipeline loss allowance at Pony Express and Terminals. Accordingly, we have historically entered into 
derivative contracts with third parties for all or a portion of these volumes for the purpose of hedging our commodity price 
exposures. In addition, Stanchion transacts in crude oil and enters into physical and financial derivative contracts in connection 
with these, and other, transactions.

We measure the risk of price changes in our crude oil and natural gas derivatives utilizing a sensitivity analysis model. The 

sensitivity analysis measures the potential income or loss (i.e., the change in fair value of the derivative instruments) based 
upon a hypothetical 10% movement in the underlying quoted market prices. In addition to these variables, the fair value of each 
portfolio is influenced by fluctuations in the notional amounts of the instruments and the discount rates used to determine the 
present values. We enter into derivative contracts that accompany certain of our business activities and, therefore, both the 
sensitivity analysis model and the change in the market value of our outstanding derivative contracts are offset largely by 
changes in the value of the underlying physical commodity prices. 

The following table summarizes our commodity derivatives and the change in fair value that would be expected from a 

10% price increase or decrease as of December 31, 2018, assuming a parallel shift in the forward curve:

Fair Value

Effect of 10%
Price Increase
(in thousands)

Effect of 10%
Price Decrease

Crude oil derivative contract assets (1)......................................... $
Crude oil derivative contract liabilities (1).................................... $

3,526
$
(1,642) $

(1,221) $
(424) $

1,221

424

(1)  Represents the net forward sale of 362,000 barrels of crude oil in our Gathering, Processing & Terminalling segment 

which will settle throughout 2019.

Interest Rate Risk

As described in Note 10 – Long-term Debt, on July 26, 2018, in connection with the Amendment to TEP's Credit 

Agreement, Tallgrass Equity repaid all outstanding borrowings and terminated its revolving credit facility.

85

 
As of December 31, 2018, TEP has issued $2.0 billion of Senior Notes and has a $2.25 billion revolving credit facility with 

borrowings of $1.22 billion. Borrowings under TEP's revolving credit facility will bear interest, at our option, at either (a) a 
base rate, which will be a rate equal to the greatest of (i) the prime rate, (ii) the U.S. federal funds rate plus 0.5% and (iii) a one-
month reserve adjusted Eurodollar rate plus 1.00% or (b) a reserve adjusted Eurodollar Rate, plus, in each case, an applicable 
margin. The applicable margin ranges from 0.25% to 1.25% for base rate borrowings (previously 0.50% to 1.50% prior to the 
Amendment) and 1.25% to 2.25% for reserve adjusted Eurodollar rate borrowings (previously 1.50% to 2.50% prior to the 
Amendment), based upon TEP's total leverage ratio.

We do not currently hedge the interest rate risk on our borrowings under TEP's revolving credit facility. However, in the 
future we may consider hedging the interest rate risk or may consider choosing longer Eurodollar borrowing terms in order to 
fix all or a portion of our borrowings for a period of time. We estimate that a 1% increase in interest rates would decrease the 
fair value of the debt by $0.6 million based on our outstanding debt under TEP's revolving credit facility as of December 31, 
2018.

Credit Risk

We are exposed to credit risk. Credit risk represents the loss that we would incur if a counterparty fails to perform under its 

contractual obligations. We manage our exposure to credit risk associated with customers to whom we extend credit through a 
credit approval process which includes credit analysis, the establishment of credit limits and ongoing monitoring procedures. 
We may request letters of credit, cash collateral, prepayments or guarantees as forms of credit support.

A substantial majority of our revenue is produced under long-term firm fee contracts with high-quality customers. The 
customer base we currently serve under these contracts generally has a strong credit profile, with a majority of our revenues 
derived from customers who have BBB- or Baa3 and better credit ratings or are part of corporate families with such credit 
ratings as of December 31, 2018. 

We also have indirect credit risk exposure with respect to our investment in Rockies Express. See Item 1A.—Risk Factors 

for additional information.

86

Item 8. Financial Statements and Supplementary Data

Report of Independent Registered Public Accounting Firm

To the Board of Directors of Tallgrass Energy GP, LLC, the general partner of Tallgrass Energy, LP, and the shareholders of 
Tallgrass Energy, LP

Opinions on the Financial Statements and Internal Control over Financial Reporting

We have audited the accompanying consolidated balance sheets of Tallgrass Energy, LP and its subsidiaries (the "Partnership")
as of December 31, 2018 and 2017, and the related consolidated statements of income, equity and cash flows for each of the three 
years in the period ended December 31, 2018, including the related notes (collectively referred to as the "consolidated financial 
statements").  We also have audited the Partnership's internal control over financial reporting as of December 31, 2018, based on 
criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of 
the Treadway Commission (COSO).  

In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position 
of the Partnership as of December 31, 2018 and 2017, and the results of their operations and their cash flows for each of the three 
years in the period ended December 31, 2018 in conformity with accounting principles generally accepted in the United States of 
America.  Also in our opinion, the Partnership maintained, in all material respects, effective internal control over financial reporting 
as of December 31, 2018, based on criteria established in Internal Control - Integrated Framework (2013) issued by the COSO.

Change in Accounting Principle

As discussed in Note 2 and 12 to the consolidated financial statements, Rockies Express Pipeline LLC, an investment of the 
Partnership accounted for under the equity method, changed the manner in which it accounts for revenue in 2018.

Basis for Opinions

The Partnership's management is responsible for these consolidated financial statements, for maintaining effective internal control 
over  financial  reporting,  and  for  its  assessment  of  the  effectiveness  of  internal  control  over  financial  reporting,  included  in 
Management's Report on Internal Control over Financial Reporting appearing under Item 9A.  Our responsibility is to express 
opinions on the Partnership's consolidated financial statements and on the Partnership's internal control over financial reporting 
based on our audits.  We are a public accounting firm registered with the Public Company Accounting Oversight Board (United 
States) ("PCAOB") and are required to be independent with respect to the Partnership in accordance with the U.S. federal securities 
laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB.  Those standards require that we plan and perform the 
audits to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether 
due to error or fraud, and whether effective internal control over financial reporting was maintained in all material respects.  

Our audits of the consolidated financial statements included performing procedures to assess the risks of material misstatement 
of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks.  
Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial 
statements.  Our audits also included evaluating the accounting principles used and significant estimates made by management, 
as well as evaluating the overall presentation of the consolidated financial statements.  Our audit of internal control over financial 
reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness 
exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk.  Our audits 
also included performing such other procedures as we considered necessary in the circumstances. We believe that our audits 
provide a reasonable basis for our opinions.

Definition and Limitations of Internal Control over Financial Reporting

A company's internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability 
of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted 
accounting principles.  A company's internal control over financial reporting includes those policies and procedures that (i) pertain 
to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets 
of the company; (ii) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial 
statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are 

87

being made only in accordance with authorizations of management and directors of the company; and (iii) provide reasonable 
assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company's assets that 
could have a material effect on the financial statements.

Because  of  its  inherent  limitations,  internal  control  over  financial  reporting  may  not  prevent  or  detect  misstatements.   Also, 
projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because 
of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

/s/ PricewaterhouseCoopers LLP

Denver, Colorado
February 8, 2019

We have served as the Partnership's auditor since 2015. 

88

TALLGRASS ENERGY, LP
CONSOLIDATED BALANCE SHEETS 

December 31, 2018 December 31, 2017

Current Assets:

ASSETS

Cash and cash equivalents ..................................................................................... $
Accounts receivable, net........................................................................................

Inventories .............................................................................................................

Prepayments and other current assets....................................................................

Total Current Assets..........................................................................................

Property, plant and equipment, net.............................................................................

Goodwill.....................................................................................................................

Intangible assets, net ..................................................................................................

Unconsolidated investments.......................................................................................
Deferred financing costs, net......................................................................................

Deferred tax asset .......................................................................................................

Deferred charges and other assets ..............................................................................
Total Assets................................................................................................................. $
LIABILITIES AND EQUITY

Current Liabilities:

Accounts payable................................................................................................... $
Accrued taxes ........................................................................................................

Accrued interest.....................................................................................................

Accrued liabilities..................................................................................................

Deferred revenue ...................................................................................................

Other current liabilities..........................................................................................

Total Current Liabilities....................................................................................

Long-term debt, net ....................................................................................................

Other long-term liabilities and deferred credits .........................................................

Total Long-term Liabilities...............................................................................

Commitments and Contingencies

Equity:

Class A Shareholders (156,311,986 and 58,085,002 shares outstanding at
December 31, 2018 and 2017, respectively) .........................................................

Class B Shareholders (123,887,893 and 99,154,440 shares outstanding at
December 31, 2018 and 2017, respectively) .........................................................

Total Partners' Equity........................................................................................
Noncontrolling interests (a) ....................................................................................
Total Equity ......................................................................................................

(in thousands)

9,596

$

236,097

34,316

11,816

291,825

2,802,429

421,983

227,103
1,861,686
10,990

273,531

3,962
5,893,509

$

2,593

119,955

21,609

13,165

157,322

2,394,337

404,838

97,731
909,531
12,563

312,997

2,694
4,292,013

201,512

$

104,224

20,734

39,217

23,287

111,095

42,910

438,755

3,205,958

31,688

3,237,646

1,725,537

—

1,725,537

491,571

2,217,108

19,272

25,167

10,540

88,471

11,202

258,876

2,292,993

18,965

2,311,958

48,613

—

48,613

1,672,566

1,721,179

4,292,013

Total Liabilities and Equity ........................................................................................ $

5,893,509

$

(a)  See Note 11 - Partnership Equity for a complete description of our noncontrolling interests.

The accompanying notes are an integral part of these consolidated financial statements.
89

 
TALLGRASS ENERGY, LP
CONSOLIDATED STATEMENTS OF INCOME

Year Ended December 31,

2018

2017
(in thousands, except per unit amounts)

2016

Revenues:

Crude oil transportation services ......................................................... $
Natural gas transportation services......................................................

Sales of natural gas, NGLs, and crude oil ...........................................

Processing and other revenues.............................................................

Total Revenues................................................................................

Operating Costs and Expenses:

Cost of sales.........................................................................................

Cost of transportation services ............................................................

Operations and maintenance................................................................

Depreciation and amortization ............................................................

General and administrative..................................................................

Taxes, other than income taxes............................................................

Contract termination............................................................................

(Gain) loss on disposal of assets..........................................................

Total Operating Costs and Expenses ..............................................

Operating Income .....................................................................................

Other Income (Expense):

Equity in earnings of unconsolidated investments ..............................

Interest expense, net ............................................................................

Gain on remeasurement of unconsolidated investment.......................

Other (expense) income, net................................................................

Total Other Income (Expense)........................................................

Net income before tax ..............................................................................

Deferred income tax expense ..............................................................

Net income ...............................................................................................

Net income attributable to noncontrolling interests ............................
Net income (loss) attributable to TGE ..................................................... $
Allocation of income:

Net income (loss) attributable to TGE................................................. $
Predecessor operations interest in net income.....................................

Net income (loss) attributable to TGE, excluding predecessor
operations interest................................................................................
Basic net income (loss) per Class A share........................................... $
Diluted net income (loss) per Class A share........................................ $
Basic average number of Class A shares outstanding .........................

Diluted average number of Class A shares outstanding ......................

398,334

$

345,733

$

126,894

168,586

99,445

793,259

114,815

53,068

72,460

110,862

70,656

31,810

—
(11,043)
442,628

350,631

306,819
(133,319)
—
(751)
172,749

523,380
(55,709)
467,671
(330,544)
137,127

137,127

—

137,127

1.27

1.27

107,586

109,817

122,364

108,503

79,298

655,898

91,213

46,200

62,069

90,800

65,536

28,832

—
(599)
384,051

271,847

237,110
(89,348)
9,728

3,106

160,596

432,443
(208,458)
223,985
(352,714)
(128,729) $

(128,729) $
—

(128,729)

(2.22) $
(2.22) $

58,076

58,076

$

$

$

$

374,949

119,962

77,123

39,628

611,662

71,650

47,669

55,070

86,247

57,298

25,400

8,061

1,849

353,244

258,418

54,531
(45,601)
—

432

9,362

267,780
(17,741)
250,039
(216,250)
33,789

33,789
(6,995)

26,794

0.55

0.55

48,856

48,889

The accompanying notes are an integral part of these consolidated financial statements.
90

TALLGRASS ENERGY, LP
CONSOLIDATED STATEMENTS OF EQUITY

Partners' Capital

Class A Shares

Class B Shares

Predecessor
Equity

Shares

Amount

Amount

Noncontrolling
Interests

Total Equity

71,564
6,995

47,725
—

$ 422,310
26,794

— $
—

1,599,188
216,250

$ 2,093,062
250,039

Shares
(in thousands)
109,504
$
—

Balance at January 1, 2016 ................................... $
Net Income .........................................................
Acquisition of additional 31.3% membership
interest in Pony Express .....................................
Issuance of TEP units to public, net of offering
costs ....................................................................
Distributions to noncontrolling interests ............
Partial exercise of call option .............................
Issuance of TEP common units in a private
placement, net of offering costs .........................
Deferred tax asset ...............................................
Dividends paid to Class A Shareholders.............
Contributions from noncontrolling interests ......
Noncash compensation expense.........................
Acquisition of membership interest in BNN......
Contributions from TD.......................................
Costs associated with equity issuance ................
TEP LTIP units tendered by employees to
satisfy tax withholding obligations.....................
Distribution of excess TGE IPO proceeds to
Exchange Right Holders.....................................
Contributions from Predecessor Entities, net .....
Conversion of Class B shares to Class A shares.
Balance at December 31, 2016 ............................. $
Acquisition of Terminals and NatGas ................
Net income .........................................................
Issuance of TEP units to public, net of offering
costs ....................................................................
Dividends paid to Class A Shareholders.............
Noncash compensation expense.........................
Issuance of TGE Class A shares under TGE
LTIP plan ............................................................
TEP LTIP units tendered by employees to
satisfy tax withholding obligations.....................
Partial exercise of call option .............................
Repurchase of TEP common units from TD ......
Acquisition of additional 24.99% membership
interest in Rockies Express.................................
Acquisition of additional 40% membership
interest in Deeprock Development .....................
Acquisition of noncontrolling interests ..............
Contributions from TD.......................................
Contributions from noncontrolling interests ......
Distributions to noncontrolling interests ............
Balance at December 31, 2017 ............................. $
Cumulative effect of ASC 606 implementation .

Net income .........................................................
Dividends paid to Class A Shareholders.............
Noncash compensation expense.........................
Acquisition of additional TEP common units
from TD..............................................................
Issuance of Tallgrass Equity units ......................

—

—
—
—

—
—
—
—
—
—
—
—

—

—
3,736
—
82,295
(82,295)
—

— (255,617)

—
—
—

—
—
—
—
—
—
—
—

—

28,762
—
(27,312)

7,592
86,766
(42,499)
—
1,448
(464)
5,827
(986)

(51)

—

—
—
—

—
—
—
—
—
—
—
—

—

—

—
—
—

—
—
—
—
—
—
—
—

—

(173,422)

(429,039)

308,909
(249,142)
(211,315)

337,671
(249,142)
(238,627)

82,417
—
—
9,304
7,879
(5,536)
12,067
—

90,009
86,766
(42,499)
9,304
9,327
(6,000)
17,894
(986)

(447)

(498)

(1,603)

—
—
10,350
$ 250,967
58,075
—
(21,314)
— (128,729)

—
—
— (10,350)
99,154
—
—

—
—
—

—

—
—
—

—

—
—
—
—
—
—

—
—
—
—

—
—

—
—
—

10

—
—
—

—

—
—
—
—
—
58,085

$

11,353
(73,321)
1,603

—

(1,317)
(12,052)
(3,618)

23,522

—
669
850
—
—
48,613

4,588
—
—
137,127
— (206,431)
6,296
—

—
—
—

—

—
—
—

—

—
—
—
—
—
99,154

—
—
—
—

—
—

(62,223)
—

10,758
—

$

$

—
—
—
— $
—
—

—
—
—
1,596,152
(36,391)
352,714

(1,603)
3,736
—
$ 1,929,414
(140,000)
223,985

—
—
—

—

—
—
—

—

101,067
—
10,390

112,420
(73,321)
11,993

—

—

(11,616)
(72,890)
(31,717)

(12,933)
(84,942)
(35,335)

40,159

63,681

—
—
—
—
—
— $

45,869
(7,109)
1,451
1,589
(317,102)
1,672,566

45,869
(6,440)
2,301
1,589
(317,102)
$ 1,721,179

—
—
—
—

—
—

39,543
330,544
—
3,197

(189,520)
644,782

44,131
467,671
(206,431)
9,493

(251,743)
644,782

The accompanying notes are an integral part of these consolidated financial statements.
91

TALLGRASS ENERGY, LP
CONSOLIDATED STATEMENTS OF EQUITY

Partners' Capital

Predecessor
Equity

Class A Shares

Class B Shares

Shares

Amount

Shares
(in thousands)

Amount

Noncontrolling
Interests

Total Equity

Acquisition of additional 25.01% membership
interest in Rockies Express.................................
Acquisition of additional 2% membership
interest in Pony Express .....................................
Consolidation of Deeprock North ......................
Consolidation of BNN Colorado........................
Contributions from noncontrolling interests ......
Distributions to noncontrolling interests ............
Issuance of TEP units to the public, net of
offering costs ......................................................
TEP LTIP units tendered by employees to
satisfy tax withholding obligations.....................
Issuance of Class A shares under LTIP plan, net
of units tendered by employees to satisfy tax
withholding obligations......................................

Conversion of Class B shares to Class A shares.
Deferred tax asset ...............................................
Acquisition of additional TEP common units ....
Issuance of Class A shares..................................
Balance at December 31, 2018 ............................. $

—

—
—
—
—
—

—

—

—

—
—
—
—
—

—

—

34,116

16,797

(5,268)
—
—
—
—

(98)

(190)

—
—
—
—
—

—

—

—

—
—
—
—
—

—

—

74,421

108,537

(44,732)
31,843
10,138
1,787
(327,578)

(50,000)
31,843
10,138
1,787
(327,578)

(279)

(377)

(1,531)

(1,721)

—
—
—
—
—
95,386
— 156,312

(30)
19
(8,717)
2,822
—
15,427
— (351,431)
2,113,758
$1,725,537

—
(2,822)
—
—
—
123,887

$

—
—
—
—
—
— $

—
8,717
—
(1,762,327)
—
491,571

(30)
—
15,427
(2,113,758)
2,113,758
$ 2,217,108

The accompanying notes are an integral part of these consolidated financial statements.
92

TALLGRASS ENERGY, LP
CONSOLIDATED STATEMENTS OF CASH FLOWS

Cash Flows from Operating Activities:

Net income........................................................................................... $
Adjustments to reconcile net income to net cash flows provided by
operating activities:

Depreciation and amortization........................................................

Equity in earnings of unconsolidated investments .........................

Distributions from unconsolidated investments .............................

Deferred income tax expense..........................................................

Gain on remeasurement of unconsolidated investment ..................

Other noncash items, net.................................................................

Changes in components of working capital:

Accounts receivable and other........................................................

Accounts payable and accrued liabilities........................................

Deferred revenue ............................................................................

Other current assets and liabilities..................................................

Other operating, net .............................................................................

Net Cash Provided by Operating Activities .............................................

Cash Flows from Investing Activities:

Contributions to unconsolidated investments......................................

Capital expenditures ............................................................................

Acquisition of BNN North Dakota, net of cash acquired....................

Acquisition of NGL Water Solutions Bakken .....................................

Distributions from unconsolidated investments in excess of
cumulative earnings.............................................................................

Sale of Tallgrass Crude Gathering.......................................................

Acquisition of membership interest in PLT.........................................

Acquisition of membership interest in Pawnee Terminal....................

Acquisition of 38% membership interest in Deeprock North .............

Acquisition of Rockies Express membership interest .........................

Acquisition of Terminals and NatGas .................................................
Acquisition of Douglas Gathering System ..........................................

Acquisition of Deeprock Development, net of cash acquired.............

Acquisition of PRB Crude System ......................................................

Acquisition of Pony Express membership interest..............................

Other investing, net .............................................................................

Net Cash Used in Investing Activities......................................................

Cash Flows from Financing Activities:

Proceeds from issuance of long-term debt ..........................................
Borrowings (repayments) under revolving credit facilities, net..........
Distributions to noncontrolling interests .............................................
Dividends paid to Class A shareholders ..............................................

Acquisition of Pony Express membership interest..............................

Proceeds from public offering of TEP common units, net of offering
costs .....................................................................................................

Year Ended December 31,

2018

2017

2016

(in thousands)

467,671

$

223,985

$

250,039

117,430
(306,819)
306,934

55,709

—
(2,382)

(102,105)
112,474

17,547
(3,079)
9,145

672,525

(473,946)
(368,873)
(95,000)
(91,000)

80,213

50,046
(30,704)
(30,600)
(19,500)
—

—

—

—

—

—
(7,848)
(987,212)

500,000
417,000
(327,578)
(206,431)
(50,000)

98,537
(237,110)
237,192

208,458
(9,728)
9,226

(57,927)
84,731

27,283
(10,542)
(2,709)
571,396

(45,948)
(145,144)
—

—

94,038
(54,531)
54,449

17,741

—

9,711

2,835

10,684

33,815
(5,578)
95

413,298

(50,076)
(84,491)
—

—

69,434

24,120

—

—

—

—
(400,000)
(140,000)
(128,526)
(57,202)
(36,030)
—
(15,125)
(898,541)

1,103,750
(356,000)
(317,102)
(73,321)
—

—

—

—

—
(436,022)
—

—

—

—
(49,118)
48
(595,539)

400,000
262,000
(249,142)
(42,499)
(425,882)

—

112,420

337,671

The accompanying notes are an integral part of these consolidated financial statements.
93

 
TALLGRASS ENERGY, LP
CONSOLIDATED STATEMENTS OF CASH FLOWS

Partial exercise of call option ..............................................................
Repurchase of TEP common units from TD .......................................
Payments for deferred financing costs ................................................

Proceeds from private placement of TEP common units, net of
offering costs .......................................................................................

Contribution from TD..........................................................................

Other financing, net .............................................................................

Net Cash Provided by Financing Activities .............................................

Net Change in Cash and Cash Equivalents ..............................................

Cash and Cash Equivalents, beginning of period.....................................
Cash and Cash Equivalents, end of period ............................................... $

—
—
—

—

—
(11,301)
321,690

7,003

2,593

9,596

$

(72,381)
(35,335)
(22,375)

—

—
(12,377)
327,279

134

2,459

2,593

$

(204,634)
—
(10,380)

90,009

17,894

7,429

182,466

225

2,234

2,459

Supplemental Disclosures:

Cash payments for interest, net ........................................................... $

(114,026) $

(72,698) $

(34,367)

Schedule of Noncash Investing and Financing Activities:

Acquisition of additional TEP common units (a)(b)............................... $
Issuance of Class A shares (a) ............................................................... $
Issuance of Tallgrass Equity units (b) ................................................... $
Acquisition of Rockies Express membership interest (b) ..................... $
Contribution of 38% membership interest in Deeprock North to
Deeprock Development ....................................................................... $
Issuance of noncontrolling interests in Deeprock Development in
exchange for 62% membership interest in Deeprock North ............... $
TEP common units issued as partial consideration to acquire
additional 9% membership interest in Deeprock Development .......... $
Increase in accrual for payment of property, plant and equipment ..... $

(2,365,501) $
$
2,113,758

644,782
$
(393,039) $

(19,500) $

(31,843) $

— $

— $

— $

— $

— $

— $

— $

5,755

$

6,617

8,975

$

$

—

—

—

—

—

—

—

—

(a)  Represents the acquisition of additional TEP common units in exchange for Class A shares associated with the Merger 

Agreement as discussed in Note 1 – Description of Business.

(b)  Represents the issuance of Tallgrass Equity units associated with our acquisition of a 25.01% membership interest in 

Rockies Express and an additional 5,619,218 TEP common units as discussed in Note 3 – Acquisitions and Dispositions.

The accompanying notes are an integral part of these consolidated financial statements.
94

TALLGRASS ENERGY, LP
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

1.  Description of Business 

Tallgrass Energy, LP ("TGE") formerly known as Tallgrass Energy GP, LP, is a limited partnership that owns, operates, 
acquires and develops midstream energy assets in North America and has elected to be treated as a corporation for U.S. federal 
income tax purposes. "We," "us," "our" and similar terms refer to TGE together with its consolidated subsidiaries.

Our operations are conducted through, and our operating assets are owned by, our direct and indirect subsidiaries, 

including Tallgrass Equity, LLC ("Tallgrass Equity"), in which we directly own an approximate 55.79% membership interest as 
of December 31, 2018. We are located in and provide services to certain key United States hydrocarbon basins, including the 
Denver-Julesburg, Powder River, Wind River, Permian and Hugoton-Anadarko Basins and the Niobrara, Mississippi Lime, 
Eagle Ford, Bakken, Marcellus, and Utica shale formations. 

Our reportable business segments are:

•  Natural Gas Transportation—the ownership and operation of FERC-regulated interstate natural gas pipelines and an 

integrated natural gas storage facility;

•  Crude Oil Transportation—the ownership and operation of a FERC-regulated crude oil pipeline system; and

•  Gathering, Processing & Terminalling—the ownership and operation of natural gas gathering and processing facilities; 

crude oil storage and terminalling facilities; the provision of water business services primarily to the oil and gas 
exploration and production industry; the transportation of NGLs; and the marketing of crude oil and NGLs.

Natural Gas Transportation. We provide natural gas transportation and storage services for customers in the Rocky 
Mountain, Midwest and Appalachian regions of the United States through: (1) our 75% membership interest in Rockies 
Express Pipeline LLC ("Rockies Express"), which owns the Rockies Express Pipeline, a FERC-regulated natural gas pipeline 
system extending from Opal, Wyoming and Meeker, Colorado to Clarington, Ohio (the "Rockies Express Pipeline"), and our 
100% membership interest in Tallgrass NatGas Operator, LLC ("NatGas"), which operates the Rockies Express Pipeline, (2) 
the Tallgrass Interstate Gas Transmission system, a FERC-regulated natural gas transportation and storage system located in 
Colorado, Kansas, Missouri, Nebraska and Wyoming (the "TIGT System"), and (3) the Trailblazer Pipeline system, a FERC-
regulated natural gas pipeline system extending from the Colorado and Wyoming border to Beatrice, Nebraska (the "Trailblazer 
Pipeline").

Crude Oil Transportation. We provide crude oil transportation to customers in Wyoming, Colorado, Kansas, and the 
surrounding regions through Tallgrass Pony Express Pipeline, LLC ("Pony Express"), which owns a FERC-regulated crude oil 
pipeline commencing in both Guernsey, Wyoming and Weld County, Colorado and terminating in Cushing, Oklahoma (the 
"Pony Express System"). In the second quarter of 2018, Pony Express placed into service an extension of the system from an 
additional origin point in Weld County, Colorado located near Platteville, Colorado.

Gathering, Processing & Terminalling. We provide natural gas gathering and processing services for customers in 

Wyoming through: (1) a natural gas gathering system in the Powder River Basin (the "Douglas Gathering System"), (2) natural 
gas processing facilities in Casper and Douglas, and (3) a natural gas treating facility at West Frenchie Draw. We also provide 
NGL transportation services in Northeast Colorado and Wyoming. We perform water business services, including freshwater 
transportation and produced water gathering and disposal, in Colorado, Texas, Wyoming, and North Dakota through BNN 
Water Solutions, LLC ("Water Solutions"), and crude oil storage and terminalling services through our 100% membership 
interest in Tallgrass Terminals, LLC ("Terminals"), which owns and operates crude oil terminals in Colorado, Oklahoma, and 
Kansas. The Gathering, Processing & Terminalling segment also includes Stanchion Energy, LLC ("Stanchion"), which 
transacts in crude oil.

The term "Terminals Predecessor" refers to Terminals and the term "NatGas Predecessor" refers to NatGas prior to their 
acquisition by Tallgrass Energy Partners, LP ("TEP") on January 1, 2017. Terminals Predecessor and NatGas Predecessor are 
collectively referred to as the Predecessor Entities, as further discussed in Note 2 – Summary of Significant Accounting 
Policies. Financial results for all prior periods have been recast to reflect the operations of the Predecessor Entities. Predecessor 
Equity as presented in the consolidated financial statements represents the capital account activity of Terminals Predecessor and 
NatGas Predecessor prior to January 1, 2017. For additional information regarding these acquisitions, see Note 3 – Acquisitions 
and Dispositions.

Merger Agreement with Tallgrass Energy Partners, LP

TGE previously entered into a definitive Agreement and Plan of Merger, dated as of March 26, 2018 (the "Merger 

Agreement"), with TEP, a Delaware limited partnership, Tallgrass MLP GP, LLC, a Delaware limited liability company and the 
general partner of TEP ("TEP GP"), and Razor Merger Sub, LLC, a Delaware limited liability company. The merger transaction 

95

contemplated by the Merger Agreement (the "TEP Merger") was completed effective June 30, 2018, and as a result, 47,693,097 
TEP common units held by the public were converted into the right to receive Class A shares of TGE at an exchange ratio of 
2.0 Class A shares for each outstanding TEP common unit, TEP's incentive distribution rights were cancelled, TEP's common 
units are no longer publicly traded, and 100% of TEP's equity interests are now owned by Tallgrass Equity and its subsidiaries. 
The TEP Merger was accounted for as an acquisition of noncontrolling interest. Following consummation of the TEP Merger, 
TGE changed its name from "Tallgrass Energy GP, LP" to "Tallgrass Energy, LP" and began trading on the New York Stock 
Exchange under the ticker symbol "TGE" on July 2, 2018.

2.  Summary of Significant Accounting Policies 

Basis of Presentation

The accompanying consolidated financial statements and related notes were prepared in conformity with accounting 
principles generally accepted in the United States of America ("GAAP"). In this report, the Financial Accounting Standards 
Board is referred to as the FASB and the FASB Accounting Standards Codification is referred to as the Codification or ASC. 
Certain prior period amounts have been reclassified to conform to the current presentation.

As further discussed in Note 3 – Acquisitions and Dispositions, we closed the acquisition of Terminals and NatGas 
effective January 1, 2017. As the acquisitions of Terminals and NatGas are considered transactions between entities under 
common control, and a change in reporting entity, the financial information presented has been recast to include Terminals and 
NatGas for all periods presented. Net equity contributions of the Predecessor Entities included in the consolidated financial 
statements represent transfers of cash as a result of Tallgrass Development's ("TD") centralized cash management system prior 
to January 1, 2017 for Terminals and NatGas, under which cash balances were swept daily and recorded as loans from the 
subsidiaries of TD. These loans were then periodically recorded as equity distributions.

The accompanying consolidated financial statements of TGE include historical cost-basis accounts of the assets of 
Terminals and NatGas for the periods prior to January 1, 2017, the date we acquired Terminals and NatGas from TD, and 
include charges from TD for direct costs and allocations of indirect corporate overhead. Management believes that the 
allocation methods are reasonable, and that the allocations are representative of costs that would have been incurred on a stand-
alone basis. TGE, TEP, and the Predecessor Entities are all considered "entities under common control" as defined under GAAP 
and, as such, the transfers between the entities of the assets and liabilities have been recorded by TGE at historical cost.

The consolidated financial statements include the accounts of TGE and its subsidiaries and controlled affiliates. Significant 

intra-entity items have been eliminated in the presentation. Net income or loss from consolidated subsidiaries that are not 
wholly-owned by TGE is attributed to TGE and noncontrolling interests in accordance with the respective ownership interests.

A variable interest entity ("VIE") is a legal entity that possesses any of the following characteristics: an insufficient amount 

of equity at risk to finance its activities, equity owners who do not have the power to direct the significant activities of the 
entity (or have voting rights that are disproportionate to their ownership interest), or equity owners who do not have the 
obligation to absorb expected losses or the right to receive the expected residual returns of the entity. Companies are required to 
consolidate a VIE if they are its primary beneficiary, which is the enterprise that has a variable interest that could be significant 
to the VIE and the power to direct the activities that most significantly impact the entity's economic performance. We have 
presented separately in our consolidated balance sheets, to the extent material, the liabilities of our consolidated VIEs for which 
creditors do not have recourse to our general credit. Our consolidated VIEs did not have material assets that could only be used 
to settle specific obligations of the consolidated VIEs. Prior to June 29, 2018, both Tallgrass Equity and TEP were considered to 
be VIEs under the applicable authoritative guidance and included in our consolidated results. As a result of the TEP Merger, 
and changes in ownership and their respective partnership arrangements, Tallgrass Equity and TEP are no longer considered to 
be VIEs. We continue to consolidate our membership interests in Tallgrass Equity and TEP through the voting interest model.

Use of Estimates

Certain amounts included in or affecting these consolidated financial statements and related disclosures must be estimated, 
requiring management to make certain assumptions with respect to values or conditions which cannot be known with certainty 
at the time the financial statements are prepared. These estimates and assumptions affect the amounts reported for assets, 
liabilities, revenues, and expenses during the reporting period, and the disclosure of contingent assets and liabilities at the date 
of the financial statements. Management evaluates these estimates on an ongoing basis, utilizing historical experience, 
consultation with experts and other methods it considers reasonable in the particular circumstances. Nevertheless, actual results 
may differ significantly from these estimates. Any effects on our business, financial position or results of operations resulting 
from revisions to these estimates are recorded in the period in which the facts that give rise to the revision become known.

Cash and Cash Equivalents

We consider all highly liquid investments purchased with an original maturity of three months or less to be cash 

equivalents. 

96

Net equity contributions of the Predecessor Entities included in the consolidated statements of cash flows represent 
transfers of cash as a result of TD's centralized cash management systems prior to January 1, 2017 for Terminals and NatGas, 
under which cash balances were swept daily and recorded as loans from the subsidiaries to TD. These loans were then 
periodically recorded as equity distributions.

Accounts Receivable and Allowance for Doubtful Accounts

Accounts receivable are carried at their estimated collectible amounts. We make periodic reviews and evaluations of the 

appropriateness of the allowance for doubtful accounts based on a historical analysis of uncollected amounts, and adjustments 
are recorded as necessary for changed circumstances and customer-specific information. When specific receivables are 
determined to be uncollectible, the reserve and receivable are relieved. Our allowance for doubtful accounts totaled $7.7 
million and $0.5 million at December 31, 2018 and 2017, respectively. 

Inventories

Inventories primarily consist of crude oil, materials and supplies, gas in underground storage, and natural gas liquids. As 
discussed further under "Revenue Recognition" below, a loss allowance is factored into the crude oil tariffs to offset losses in 
transit. As crude oil is transported, we earn oil for our services as pipeline loss allowance oil, or PLA, which we can then 
sell. As PLA oil is accumulated, it is recorded as inventory at the lower of historical cost and net realizable value using the 
average cost method. Materials and supplies are valued at weighted average cost and periodically reviewed for physical 
deterioration and obsolescence. Natural gas liquids and gas in underground storage, sometimes referred to as working gas, are 
recorded at the lower of historical cost and net realizable value using the average cost method. For additional information, see 
"Gas in Underground Storage" below.

Accounting for Regulatory Activities

Regulated activities are accounted for in accordance with the "Regulated Operations" Topic of the Codification. This Topic 

prescribes the circumstances in which the application of GAAP is affected by the economic effects of regulation. Regulatory 
assets and liabilities represent probable future revenues or expenses associated with certain charges and credits that will be 
recovered from or refunded to customers through the ratemaking process. We recorded regulatory assets of approximately $3.2 
million and $2.6 million included in "Prepayments and other current assets" and "Deferred charges and other assets" in the 
consolidated balance sheets at December 31, 2018 and 2017, respectively. Regulatory assets at December 31, 2018 and 
December 31, 2017 were primarily attributable to costs associated with fuel tracker assets at our regulated natural gas pipelines 
as well as both Trailblazer's 2013 and 2018 Rate Case Filings and TIGT's 2015 Rate Case Filing. We recorded regulatory 
liabilities of approximately $1.9 million and $2.3 million included in "Other current liabilities" in the consolidated balance 
sheets at December 31, 2018 and 2017, respectively, related to fuel tracker liabilities at our regulated natural gas pipelines. For 
further information regarding our rate case filings and fuel tracker balances, see Note 18 – Regulatory Matters.

Property, Plant and Equipment

Property, plant and equipment is stated at historical cost, which for constructed plants includes indirect costs such as 
payroll taxes, other employee benefits, allowance for funds used during construction for regulated assets and other costs 
directly related to the projects. Expenditures that increase capacities, improve efficiencies or extend useful lives are capitalized 
and depreciated over the remaining useful life of the asset or major asset component. We also capitalize certain costs related to 
the construction of assets, including internal labor costs, interest and engineering costs.

Routine maintenance, repairs and renewal costs are expensed as incurred. The cost of normal retirements of the regulated 

depreciable utility property, plant and equipment, plus the cost of removal less salvage value and any gain or loss recognized, is 
recorded in accumulated depreciation and/or the negative salvage liability discussed under "Depreciation and Amortization" 
below, as appropriate, with no effect on current period earnings. Gains or losses are recognized upon retirement of non-
regulated or regulated property, plant and equipment constituting an operating unit or system, and land, when sold or 
abandoned and costs of removal or salvage are expensed when incurred.

Intangible Assets

We establish identifiable intangible assets when they meet either the separability criterion or the contractual-legal criterion. 

Contract-based intangible assets represent the value of rights that arise from contractual arrangements. Use rights such as 
drilling, water, air, timber cutting, and route authorities are an example of contract-based intangible assets. Intangible assets 
arose at Pony Express from the acquisition of rights associated with the ability and regulatory permissions to convert a section 
of TIGT's natural gas pipeline, which was subsequently purchased by Pony Express, to crude oil and includes the operational 
and financial benefits that accrue due to those rights and the ability to make that asset more valuable ("the Pony Express oil 
conversion use rights"). These intangible assets are amortized on a straight-line basis over a period of 35 years, the period of 
expected future benefit. During 2018, we recognized additional intangible assets at Plaquemines Liquids Terminal, LLC 
("PLT"), a newly formed subsidiary as discussed in Note 3 – Acquisitions and Dispositions, from the acquisition of permits, 

97

designs, and other work-product related to the development and construction of a crude oil terminal facility in Louisiana. These 
intangible assets will be amortized on a straight-line basis over a period of 35 years, the period of expected future benefit. Also, 
during 2018, we recognized an intangible asset associated with customer relationships as part of our acquisition of NGL Water 
Solutions Bakken, LLC as discussed in Note 3 – Acquisitions and Dispositions. The customer relationships are amortized on a 
straight-line basis over a period of 8 years. Other intangible assets include customer contracts amortized on a straight-line basis 
over a period of 2 - 14 years, based on the remaining term of the contracts at the time of acquisition.

Impairment of Long-Lived Assets 

We review our long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying 

amount of an asset or asset group may not be recoverable. An impairment loss results when the estimated undiscounted future 
net cash flows expected to result from the asset or asset group's use and its eventual disposition are less than its carrying 
amount. We assess our long-lived assets for impairment in accordance with the relevant Codification guidance. A long-lived 
asset or asset group is tested for impairment whenever events or changes in circumstances indicate its carrying amount may 
exceed its fair value.

Examples of long-lived asset impairment indicators include:

• 

• 

• 

• 

• 

• 

a significant decrease in the market value of a long-lived asset or asset group;

a significant adverse change in the extent or manner in which a long-lived asset or asset group is being used or in its 
physical condition;

a significant adverse change in legal factors or in the business climate could affect the value of long-lived asset or 
asset group, including an adverse action or assessment by a regulator which would exclude allowable costs from the 
rate-making process;

an accumulation of costs significantly in excess of the amount originally expected for the acquisition or construction 
of the long-lived asset or asset group;

a current period operating cash flow loss combined with a history of operating cash flow losses or a projection or 
forecast that demonstrates continuing losses associated with the use of a long-lived asset or asset group; and

a current expectation that, more likely than not, a long-lived asset or asset group will be sold or otherwise disposed of 
significantly before the end of its previously estimated useful life. 

When an impairment indicator is present, we first assess the recoverability of the long-lived assets by comparing the sum 
of the undiscounted future cash flows expected to result from the use and eventual disposition of the asset or asset group to its 
carrying amount. If the carrying amount is higher than the undiscounted future cash flows, the fair value of the asset or asset 
group is assessed using a discounted cash flow analysis and used to determine the amount of impairment, if any, to be 
recognized.

Gas in Underground Storage

Gas in underground storage represents the cost of base gas, which refers to the volumes necessary to maintain pressure and 

deliverability requirements in our storage facilities. We record base gas as a component of property, plant and equipment.

We maintain working gas in our underground storage facilities on behalf of certain third parties. We receive a fee for our 

storage services but do not reflect the value of third-party gas in the accompanying consolidated financial statements. We 
occasionally acquire volumes of working gas for our own account. These volumes of working gas are recorded as natural gas 
inventory at the lower of cost and net realizable value. 

Depreciation and Amortization

For non-regulated assets, we have elected to use the straight-line method of depreciation. For our regulated assets, we have 
elected to compute depreciation using a composite method employed by applying a single depreciation rate to a group of assets 
with similar economic characteristics. This composite method of depreciation approximates a straight-line method of 
depreciation. The depreciation rates for our regulated natural gas pipeline assets include two components, one based on 
economic service life (capital recovery) and one based on net costs of removal (negative salvage). The accumulated liability 
related to negative salvage is classified as "Other long-term liabilities and deferred credits" in our consolidated balance sheets.

98

The rates of depreciation for the various classes of depreciable assets are as follows:

Crude oil pipelines .....................................................................................................................................
Natural gas pipelines ..................................................................................................................................
Gathering & processing assets ...................................................................................................................
Water business assets..................................................................................................................................
Terminal assets ...........................................................................................................................................
Replacement Gas Facilities (1) ....................................................................................................................
General & other ..........................................................................................................................................

Range of
Depreciation
Rates

2.8%

0.7% - 5.0%

2.2% - 5.0%

2.3% - 20.0%

1.8% - 2.8%

10.0%

2.9% - 25.0%

(1)  Represents costs incurred by TIGT, and reimbursed by Pony Express, for the construction of certain gas facilities 

necessary to maintain existing natural gas service on the TIGT System after having sold approximately 433 miles of 
natural gas pipeline, and associated rights of way and certain other equipment, to Pony Express in 2013.

Gas Imbalances

Gas imbalances receivable and payable represent the difference between customer nominations and actual gas receipts 

from and gas deliveries to interconnecting pipelines under various operational balancing and imbalance agreements. Gas 
imbalances are either made up in-kind or settled in cash, subject to the terms and valuations of the various agreements. 
Imbalances are valued at applicable average market index prices. Gas imbalances receivable and payable are included in 
"Prepayments and other current assets" and "Other current liabilities" in the consolidated balance sheets.

Deferred Financing Costs

Costs incurred in connection with the issuance of long-term debt are deferred and amortized over the related financing 
period using the effective interest method. Deferred financing costs associated with long-term debt are presented as a reduction 
to the corresponding debt in our consolidated balance sheets. Deferred financing costs associated with our revolving credit 
facility are presented as noncurrent assets in our consolidated balance sheets. During the year ended December 31, 2018, we 
recognized a $2.2 million loss on debt retirement, recorded as "Other income, net" in the accompanying consolidated 
statements of income, associated with the write off of deferred financing costs associated with the Amendment to the TEP 
revolving credit facility and the termination of the Tallgrass Equity revolving credit facility as discussed further in Note 10 – 
Long-term Debt.

Goodwill

We evaluate goodwill for impairment on an annual basis and whenever events or changes in circumstances necessitate an 

evaluation for impairment. Examples of such facts and circumstances include changes in the magnitude of the excess of fair 
value over carrying amount in the last valuation or changes in the business environment. Our annual impairment testing date is 
August 31. We evaluate goodwill for impairment at the reporting unit level, which is the same as, or one level below, an 
operating segment as defined in the segment reporting guidance of the Codification, using either the qualitative assessment 
option or proceeding directly to the quantitative impairment test depending on facts and circumstances of the reporting unit. For 
the purpose of goodwill impairment testing, goodwill was allocated to our reporting units based on the enterprise value of each 
reporting unit at the date of acquisition. If we, after performing the qualitative assessment, determine it is "more likely than 
not" that the fair value of a reporting unit is greater than its carrying amount, then goodwill is not considered impaired. When 
goodwill is evaluated for impairment using the quantitative impairment test, the carrying amount of the reporting unit is 
compared to its fair value. If the fair value exceeds the carrying amount, goodwill is not considered impaired. If the carrying 
amount exceeds the reporting unit's fair value, then the reporting unit should recognize an impairment charge for the amount by 
which the carrying amount exceeds the reporting unit's fair value; however, the loss recognized should not exceed the total 
amount of goodwill allocated to that reporting unit. See Note 8 – Goodwill and Other Intangible Assets for additional 
information regarding impairment testing performed during 2018.

Investment in Unconsolidated Affiliates

We use the equity method to account for investments in 20% or greater owned affiliates that are not variable interest 
entities and where we do not have the ability to exercise control, and for investments in less than 20% owned affiliates where 
we have the ability to exercise significant influence.

We evaluate our investments in unconsolidated affiliates for impairment whenever events or changes in circumstances 
indicate that the carrying value of such investments may have experienced a decline in value. When there is evidence of loss in 

99

value, we compare the estimated fair value of the investment to the carrying value of the investment to determine whether an 
impairment has occurred. We assess the fair value of our investments in unconsolidated affiliates using commonly accepted 
techniques, and may use more than one method, including, but not limited to, recent third party comparable sales and 
discounted cash flow models. The difference between the carrying amount of the unconsolidated affiliates and their estimated 
fair value is recognized as an impairment loss when the loss in value is deemed to be other-than-temporary. See Note 7 – 
Investments in Unconsolidated Affiliates for additional information regarding our investment in unconsolidated affiliates.

Revenue Recognition

In May 2014, the FASB issued Accounting Standards Update ("ASU") No. 2014-09, Revenue from Contracts with 
Customers (Topic 606). ASU 2014-09 provides a comprehensive and converged set of principles-based revenue recognition 
guidelines which supersede the existing industry and transaction-specific standards. The core principle of the new guidance is 
that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that 
reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. To achieve this core 
principle, entities must apply a five-step process to (1) identify the contract with a customer; (2) identify the performance 
obligations in the contract; (3) determine the transaction price; (4) allocate the transaction price to the performance obligations 
in the contract; and (5) recognize revenue when (or as) the entity satisfies a performance obligation. ASU 2014-09 also 
mandates disclosure of sufficient information to enable users of financial statements to understand the nature, amount, timing 
and uncertainty of revenue and cash flows arising from contracts with customers. The disclosure requirements include 
qualitative and quantitative information about contracts with customers, significant judgments and changes in judgments, and 
assets recognized from the costs to obtain or fulfill a contract.

Management completed its evaluation and implemented the revised guidance using the modified retrospective method as 
of January 1, 2018. This approach allows us to apply the new standard to (i) all new contracts entered into after January 1, 2018 
and (ii) all existing contracts for which all (or substantially all) of the revenue has not been recognized under legacy revenue 
guidance as of January 1, 2018 through a cumulative adjustment to members' equity. Consolidated revenues presented in the 
comparative consolidated financial statements for periods prior to January 1, 2018 have not been revised.

On January 1, 2018, we recorded a cumulative effect adjustment to equity of $44.1 million, increased the carrying amount 

of our investment in Rockies Express by $42.8 million, and recognized a receivable from Rockies Express of $1.3 million. 
These adjustments relate to the cumulative effect adjustment recorded by Rockies Express of $125.2 million upon adoption of 
ASC 606. The cumulative effect adjustment at Rockies Express arose as a result of the allocation of the transaction price to a 
series of individual performance obligations in certain long-term transportation contracts with rates that vary throughout the 
term of the contract. The adjustment increases the carrying amount of our investment in Rockies Express to reflect increased 
equity in earnings and establishes a receivable for the increased management fee revenue that would have been earned by 
NatGas during the periods prior to implementation.

Through our review process, we also identified the following changes to our revenue recognition policies that did not 

result in a cumulative effect adjustment on January 1, 2018:

•  Gathering & Processing. We have determined that a number of our gathering & processing contracts at TMID do not 

represent customer arrangements under ASC 606. Instead, arrangements deemed to represent wellhead purchases of 
raw gas are accounted for as supply arrangements pursuant to ASC 705. As a result, gathering & processing fees 
previously recognized in revenue are reported as a reduction to cost of sales under ASC 606.

•  Pipeline Loss Allowance. We have determined that PLA collected under certain crude oil transportation arrangements 
is a component of the transaction price where the PLA both significantly exceeds actual losses and was negotiated 
with the intent of providing a revenue stream to Pony Express. Under ASC 606, PLA barrels retained from customers 
are subject to the guidance for noncash consideration and recognized in revenue at their contract inception fair value.

See Note 12 – Revenue from Contracts with Customers for revenue disclosures related to both the implementation and the 

additional requirements prescribed by the standard. These new disclosures include information regarding the significant 
judgments used in evaluating when and how revenue is (or will be) recognized and data related to contract assets and liabilities.

Commitments and Contingencies

We recognize liabilities for other commitments and contingencies when, after fully analyzing the available information, we 

determine it is probable that a liability has been incurred and the amount of loss can be reasonably estimated. When a range of 
probable loss can be estimated, we accrue the most likely amount, or if no amount is more likely than another, we accrue the 
minimum of the range of probable loss.

Environmental Costs

We expense or capitalize, as appropriate, environmental expenditures that relate to current operations. We expense amounts 

that relate to an existing condition caused by past operations that do not contribute to current or future revenue generation. We 
100

do not discount environmental liabilities to a net present value, and record environmental liabilities when environmental 
assessments and/or remedial efforts are probable and costs can be reasonably estimated. Recording of these accruals coincides 
with the completion of a feasibility study or a commitment to a formal plan of action. Estimates of environmental liabilities are 
based on currently available facts and presently enacted laws and regulations taking into consideration the likely effects of 
other factors including our prior experience in remediating contaminated sites, other companies' clean-up experience and data 
released by government organizations. Our estimates are subject to revision in future periods based on actual cost or new 
information. 

Fair Value 

Fair value, as defined in the Codification, is the price that would be received to sell an asset or paid to transfer a liability in 
an orderly transaction between market participants at the measurement date, or exit price. We apply the fair value measurement 
guidance to financial assets and liabilities in determining the fair value of derivative assets and liabilities, and to nonfinancial 
assets and liabilities upon the acquisition of a business or in conjunction with the measurement of an impairment loss on an 
asset group or goodwill under the accounting guidance for the impairment of long-lived assets or goodwill.

The fair value measurement accounting guidance requires that we make assumptions that market participants would use in 
pricing an asset or liability based on the best information available. These factors include nonperformance risk (the risk that the 
obligation will not be fulfilled) and credit risk of the reporting entity (for liabilities) and of the counterparty (for assets). The 
fair value measurement guidance prohibits the inclusion of transaction costs and any adjustments for blockage factors in 
determining the instruments' fair value. The principal or most advantageous market should be considered from the perspective 
of the reporting entity.

Fair value, where available, is based on observable market prices. Where observable market prices or inputs are not 
available, different valuation models and techniques are applied. These models and techniques attempt to maximize the use of 
observable inputs and minimize the use of unobservable inputs. The process involves varying levels of management judgment, 
the degree of which is dependent on the price transparency of the instruments or market and the instruments' complexity.

To increase consistency and enhance disclosure of fair value, the Codification creates a fair value hierarchy to prioritize the 
inputs used to measure fair value into three categories. An asset or liability's level within the fair value hierarchy is based on the 
lowest level of input significant to the fair value measurement, where Level 1 is the highest and Level 3 is the lowest. The three 
levels are defined as follows:

•  Level 1 Inputs-quoted prices (unadjusted) in active markets for identical assets or liabilities that the reporting entity 

has the ability to access at the measurement date;

•  Level 2 Inputs-inputs other than quoted prices included within Level 1 that are observable for the asset or liability, 
either directly or indirectly. If the asset or liability has a specified (contractual) term, a Level 2 input must be 
observable for substantially the full term of the asset or liability; and

•  Level 3 Inputs-unobservable inputs for the asset or liability. These unobservable inputs reflect the entity's own 
assumptions about the assumptions that market participants would use in pricing the asset or liability, and are 
developed based on the best information available in the circumstances (which might include the reporting entity's 
own data).

Any transfers between levels within the fair value hierarchy are recognized at the end of the reporting period. For 
information regarding financial instruments measured at fair value on a recurring basis, see Note 9 – Risk Management. For 
information regarding the fair value of financial instruments not measured at fair value in the consolidated balance sheets, see 
Note 10 – Long-term Debt.

Risk Management Activities

Our operations expose us to a variety of risks including, but not limited to, changes in the prices of commodities that we 
buy or sell. We manage these exposures with either physical or financial transactions. We have established a comprehensive 
risk management policy and a risk management committee, or the Risk Management Committee, to monitor and manage 
market risks associated with commodity prices and counterparty credit. The Risk Management Committee is composed of 
senior executives who receive regular briefings on positions and exposures, credit exposures and overall risk management in 
the context of market activities. The Risk Management Committee is responsible for the overall management of credit risk and 
commodity price risk, including establishing and monitoring exposure limits. 

We record derivative contracts at their estimated fair values as of each reporting date and present profit and loss activity on 

a net basis in "Processing and other revenues" in our consolidated statements of operations. For more information on our risk 
management activities, see Note 9 – Risk Management. 

101

Equity-Based Compensation

Equity-based compensation grants are measured at their grant date fair value and related compensation cost is recognized 
over the vesting period of the grant. Compensation cost for awards with graded vesting provisions is recognized on a straight-
line basis over the requisite service period of each separately vesting portion of the award. As discussed in Note 16 – Equity-
Based Compensation, prior to February 2018 a portion of the expense recognized relating to equity-based compensation grants 
was charged to TD.

Income Taxes

Although TGE is organized as a limited partnership, we have elected to be treated as a corporation for U.S. federal income 

tax purposes and are therefore subject to both U.S. federal and state income taxes. TGE's consolidated subsidiaries consist 
primarily of entities that are flow-through entities for income tax purposes. We also own certain C corporation subsidiaries 
which have been formed for the purpose of potential pipeline construction and other investment purposes. In addition, Tallgrass 
Energy Finance Corp. is a wholly owned subsidiary of TEP that has no material assets and was formed for the sole purpose of 
being a co-issuer of TEP's senior notes as discussed in Note 10 – Long-term Debt. These C corporation subsidiaries have not 
commenced operations or generated any material income, and as a result no provision for federal or state income taxes has been 
recorded in our consolidated financial statements.

Deferred income taxes are provided for temporary differences arising from differences between the consolidated financial 

statement and tax basis of assets and liabilities existing at each balance sheet date using enacted tax rates expected to be in 
effect when the related taxes are expected to be paid or recovered. A valuation allowance is established if it is more likely than 
not that a deferred tax asset will not be realized. In determining the appropriate valuation allowance, we consider projected 
realization of tax benefits based on expected levels of future taxable income, available tax planning strategies, and our overall 
deferred tax position.

Pursuant to the applicable guidance related to accounting for uncertainty in income taxes, we must recognize the tax 
benefit from an uncertain tax position only if it is more likely than not that the tax position will be sustained upon examination 
by the taxing authorities, based on the technical merits of the tax position and also the past administrative practices and 
precedents of the taxing authority. As of December 31, 2018, we had not recognized any material amounts in connection with 
uncertainty in income taxes.

Business Combinations 

We recognize and measure the assets acquired and liabilities assumed in a business combination based on their estimated 

fair values at the acquisition date, with any remaining difference recorded as goodwill or gain from a bargain purchase. For 
material or complex acquisitions, management typically engages an independent valuation specialist to assist with the 
determination of fair value of the assets acquired, liabilities assumed, noncontrolling interest, if any, and goodwill, based on 
recognized business valuation methodologies. If the initial accounting for the business combination is incomplete by the end of 
the reporting period in which the acquisition occurs, an estimate will be recorded. Subsequent to the acquisition, and not later 
than one year from the acquisition date, we will record any material adjustments to the initial estimate based on new 
information obtained about facts and circumstances that existed as of the acquisition date. An income, market or cost valuation 
approach may be utilized to estimate the fair value of the assets acquired, liabilities assumed, and noncontrolling interest, if 
any, in a business combination. We typically use an income approach, such as the multi-period excess earnings method, to 
value intangible assets. The income approach requires management to estimate future cash flows: (i) discrete financial 
forecasts, which rely on management's estimates of gross margin and operating expenses; (ii) terminal growth rates; and 
(iii) appropriate discount rates. We typically use a cost approach to value property, plant and equipment. The cost approach is 
based on the replacement cost of a comparable asset at prices at the time of the acquisition reduced for depreciation of the asset. 
See Note 3 – Acquisitions and Dispositions for additional information regarding our business combinations.

Accounting Pronouncements Not Yet Adopted

ASU No. 2016-02, "Leases (Topic 842)"

In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842). ASU 2016-02 provides a comprehensive update 

to the lease accounting topic in the Codification intended to increase transparency and comparability among organizations by 
recognizing right-of-use ("ROU") assets and lease liabilities on the balance sheet and disclosing key information about leasing 
arrangements. The amendments in ASU 2016-02 include a revised definition of a lease as well as certain scope exceptions. The 
changes primarily impact lessee accounting, while lessor accounting is largely unchanged from previous GAAP.

Subsequent to issuing ASU 2016-02, the FASB has issued a series of subsequent updates to the lease guidance in Topic 
842, including ASU No. 2018-01, Leases (Topic 842): Land Easement Practical Expedient for Transition to Topic 842, ASU 
No. 2018-10, Codification Improvements to Topic 842, Leases, ASU No. 2018-11, Leases (Topic 842): Targeted Improvements, 
and ASU 2018-20, Leases (Topic 842): Narrow-Scope Improvements for Lessors. The amendments in ASU 2016-02, ASU 

102

2018-01, ASU 2018-10, ASU 2018-11, and ASU 2018-20 are effective for public entities for annual reporting periods 
beginning after December 15, 2018, and for interim periods within that reporting period.

Management has completed its evaluation and implemented the revised guidance using the modified retrospective method 

as of January 1, 2019. The approach allows us to (i) initially apply ASC 842 at the adoption date, January 1, 2019 and (ii) 
continue reporting comparative periods presented in the financial statements in the period of adoption under ASC 840. We will 
not recast comparative periods in the consolidated financial statements. We have elected the package of practical expedients 
permitted under the transition guidance within the new standard, which among other things, allowed us to carry forward the 
historical lease classification. We also elected the practical expedient related to land easements, allowing us to carry forward 
our accounting treatment for land easements on existing agreements as property, plant and equipment.

Adoption of the new standard resulted in the recognition of ROU assets and lease liabilities for operating leases as of 
January 1, 2019. Excluding ROU assets and lease liabilities relating to agreements between consolidated subsidiaries, the ROU 
assets and liabilities recognized as of January 1, 2019 are not expected to be material. Our accounting for finance leases 
remained substantially unchanged.

3.  Acquisitions and Dispositions 

Consolidation of BNN Colorado

Effective December 1, 2018, we obtained control of BNN Colorado Water, LLC ("BNN Colorado") through an amendment 

to the voting rights in BNN Colorado's limited liability company agreement. Prior to the amendment, we accounted for our 
interest in BNN Colorado under the equity method of accounting. The consolidation was accounted for as a business 
combination under ASC 805. No gain or loss was recognized on the remeasurement of our 63% membership interest as of 
December 1, 2018, as the carrying value was determined to approximate the fair value. The 37% equity interest in BNN 
Colorado held by noncontrolling interests was recorded at its acquisition date fair value of $10.1 million. These fair value 
measurements are based on significant inputs, such as forecasted cash flows and discount rates, that are not observable in the 
market and thus represent fair value measurements categorized within Level 3 of the fair value hierarchy under ASC 820.

The following represents the fair value of assets acquired and liabilities assumed (in thousands):

Accounts receivable..................................................................................................................... $
Property, plant and equipment.....................................................................................................
Intangible asset ............................................................................................................................
Accounts payable and accrued liabilities ....................................................................................
Deferred revenue .........................................................................................................................

Net identifiable assets acquired (excluding cash) ..................................................................... $

4,053

18,535
7,922 (1)
(53)
(4,053)
26,404

(1)  The $7.9 million intangible asset acquired represents a customer contract. This intangible asset is amortized on a 

straight-line basis over a period of approximately 3 years, the remaining term of the underlying contract at the time of 
acquisition. 

At December 31, 2018, the assets acquired and liabilities assumed were recorded at provisional amounts based on the 
preliminary purchase price allocation. We are in the process of identifying and measuring all assets acquired and liabilities 
assumed in the acquisition within the measurement period. Such provisional amounts will be adjusted if necessary to reflect any 
new information about facts and circumstances that existed at the acquisition date that, if known, would have affected the 
measurement of these amounts. Actual revenue and net loss attributable to TGE from BNN Colorado of less than $1.0 million 
was recognized in the accompanying consolidated statements of income for the period from December 1, 2018 to December 31, 
2018.

Acquisitions of BNN North Dakota

In January 2018, we acquired 100% of the membership interests in Buckhorn Energy Services, LLC and Buckhorn SWD 

Solutions, LLC, which were subsequently merged and renamed BNN North Dakota, LLC ("BNN North Dakota"), for 
approximately $95.0 million, net of cash acquired. BNN North Dakota owns a produced water gathering and disposal system in 
the Bakken basin with approximately 133,000 acres under dedication. The transaction qualifies as an acquisition of a business 
and is accounted for as a business combination under ASC 805.

103

The following represents the fair value of assets acquired and liabilities assumed (in thousands): 

Accounts receivable ..................................................................................................................... $
Inventory ......................................................................................................................................
Property, plant and equipment .....................................................................................................
Intangible asset.............................................................................................................................
Accounts payable and accrued liabilities.....................................................................................

Net identifiable assets acquired (excluding cash) ..................................................................... $

2,457

67

48,900
46,800 (1)
(3,224)
95,000

(1)  The $46.8 million intangible asset acquired represents three major customer contracts. This intangible asset is 

amortized on a straight-line basis over a period of 8 - 14 years, the remaining terms of the underlying contracts at the 
time of acquisition. 

At March 31, 2018, the assets acquired and liabilities assumed in the acquisition were recorded at provisional amounts 
based on the preliminary purchase price allocation. No adjustments were made to these provisional amounts and the allocation 
of assets acquired and liabilities assumed in the acquisition was considered final as of June 30, 2018. Actual revenue and net 
income attributable to TGE from BNN North Dakota of $18.8 million and $4.7 million, respectively, was recognized in the 
accompanying consolidated statements of income for the period from January 12, 2018 to December 31, 2018.

In November 2018, we acquired 100% of the membership interests in NGL Water Solutions Bakken, LLC ("NGL Water 

Solutions Bakken"), a produced water disposal system in the Bakken basin, for cash consideration of approximately $91.0 
million, subject to working capital adjustments. NGL Water Solutions Bakken was subsequently merged into BNN North 
Dakota. The transaction qualifies as an acquisition of a business and is accounted for as a business combination under ASC 805.

The following represents the fair value of assets acquired and liabilities assumed (in thousands): 

Accounts receivable..................................................................................................................... $
Prepayments and other current assets..........................................................................................
Property, plant and equipment.....................................................................................................
Intangible asset ............................................................................................................................
Accounts payable and accrued liabilities ....................................................................................
Net identifiable assets acquired.................................................................................................
Goodwill ......................................................................................................................................

Net assets acquired.................................................................................................................... $

3,599

5

17,200
54,000 (1)
(949)
73,855

17,145

91,000

(1)  The $54.0 million intangible asset acquired represents customer relationships and a customer contract. This intangible 

asset is amortized on a straight-line basis over a period of 3 - 8 years. 

At December 31, 2018, the assets acquired and liabilities assumed in the acquisition were recorded at provisional amounts 
based on the preliminary purchase price allocation. We are in the process of identifying and measuring all assets acquired and 
liabilities assumed in the acquisition within the measurement period. Such provisional amounts will be adjusted if necessary to 
reflect any new information about facts and circumstances that existed at the acquisition date that, if known, would have 
affected the measurement of these amounts. The goodwill recognized of $17.1 million is primarily attributed to synergies 
expected from combining the operations of TGE and NGL Water Solutions Bakken. All the goodwill was assigned to our 
Gathering, Processing & Terminalling segment. Actual revenue and net income attributable to TGE from NGL Water Solutions 
Bakken of $1.4 million and $0.5 million, respectively, was recognized in the accompanying consolidated statements of income 
for the period from November 30, 2018 to December 31, 2018.

Acquisition of Plaquemines Liquids Terminal, LLC

In November 2018, we entered into a joint venture agreement with Drexel Hamilton Infrastructure Fund I, L.P. ("DHIF") to 

jointly-own Plaquemines Liquids Terminal, LLC ("PLT"). PLT was formed with the intention of entering into agreements to 
develop a storage and terminalling facility. The facility is expected to offer up to 20 million barrels of storage for both crude oil 
and refined products and export facilities capable of loading Suezmax and Very Large Crude Carriers ("VLCC") vessels for 
international delivery. We made an initial cash contribution to PLT of $30.7 million in exchange for a 100% preferred 
membership interest and a 80% common membership interest in PLT. DHIF contributed any and all assets and rights related to 
PLT in exchange for a 20% common membership interest and the right to receive certain special distributions. Our preferred 
and common membership interests are considered to be a controlling financial interest and PLT was consolidated accordingly. 
The transaction has been accounted for as an asset acquisition, with substantially all the fair value allocated to the assets and 

104

liabilities acquired based on their relative fair values. The intangible assets acquired, valued at approximately $35 million, 
relate to permits, designs, and other work-product related to the development and construction of a crude oil terminal facility in 
Louisiana. The liabilities recognized relate to DHIF's right to receive special distributions totaling $35 million. The special 
distributions are contingent upon PLT reaching certain milestones in the development and construction of the project facilities. 
Also in November 2018, PLT entered into an agreement with the Plaquemines Port & Harbor Terminal District to lease the land 
site on which PLT will construct the facilities.

Acquisition of Pawnee Terminal

In January 2018, we entered into an agreement to acquire a 51% membership interest in the Pawnee, Colorado crude oil 
terminal ("Pawnee Terminal") from Zenith Energy Terminals Holdings, LLC for cash consideration of approximately $30.6 
million. The transaction closed on April 1, 2018. As the 51% membership interest does not represent a controlling interest in 
Pawnee, our investment in Pawnee Terminal is recorded under the equity method of accounting and reported as 
"Unconsolidated investments" on the consolidated balance sheets.

Acquisitions of 75% Membership Interest in Rockies Express and Additional TEP Common Units

In May 2016, TD assigned us its right to purchase a 25% membership interest in Rockies Express from a unit of Sempra 

U.S. Gas and Power ("Sempra") pursuant to the purchase agreement originally entered into between TD's wholly-owned 
subsidiary and Sempra in March 2016. Subsequently on May 6, 2016, we closed the purchase of a 25% membership interest in 
Rockies Express from Sempra pursuant to the purchase agreement for cash consideration of approximately $436.0 million, after 
making the adjustments to the purchase price required by the purchase agreement. 

In March 2017, TEP, TD, and Rockies Express Holdings, LLC, entered into a definitive Purchase and Sale Agreement, 
pursuant to which TEP acquired an additional 24.99% membership interest in Rockies Express from TD in exchange for cash 
consideration of $400 million.

The 2017 transfer of the Rockies Express membership interest between TD and TEP is considered a transaction between 

entities under common control, but does not represent a change in reporting entity. As a result of the common control nature of 
the transaction, the acquisition resulted in the recognition of a noncash deemed contribution representing the excess carrying 
value of the 24.99% membership interest in Rockies Express acquired over the fair value of the consideration paid. For further 
discussion, see Note 11 - Partnership Equity.

In February 2018, TD merged into Tallgrass Development Holdings, LLC, a wholly-owned subsidiary of Tallgrass Equity 
("Tallgrass Development Holdings"), and as a result of the merger, Tallgrass Equity acquired a 25.01% membership interest in 
Rockies Express and an additional 5,619,218 TEP common units. As consideration for the acquisition, TGE and Tallgrass 
Equity issued 27,554,785 unregistered TGE Class B shares and Tallgrass Equity units, valued at approximately $644.8 million 
based on the closing price on February 6, 2018, to the limited partners of TD. Subsequent to the closing of the transaction, our 
aggregate membership interest in Rockies Express is 75%. 

The 2018 transfer of the Rockies Express membership interest between TD and Tallgrass Equity is considered a transaction 

between entities under common control, but does not represent a change in reporting entity. As a result of the common control 
nature of the transaction, the acquisition resulted in the recognition of a noncash deemed contribution representing the excess 
carrying value of the 25.01% membership interest in Rockies Express acquired over the fair value of the consideration paid. For 
further discussion, see Note 11 - Partnership Equity. As the aggregate 75% membership interest does not represent a 
controlling interest in Rockies Express, TGE's investment in Rockies Express is recorded under the equity method of 
accounting and is reported as "Unconsolidated investments" on our consolidated balance sheets. For additional information, see 
Note 7 - Investments in Unconsolidated Affiliates. 

The acquisition of an additional 5,619,218 TEP common units is considered an acquisition of noncontrolling interest and 

resulted in the recognition of a noncash deemed distribution representing the excess purchase price over the $53.8 million 
carrying value of the 5,619,218 TEP common units acquired as of February 7, 2018. For further discussion, see Note 11 - 
Partnership Equity. 

Acquisition and Sale of Outrigger Powder River Operating, LLC

In August 2017, we acquired 100% of the membership interests of Outrigger Powder River Operating, LLC (subsequently 
renamed as Tallgrass Crude Gathering, LLC, "TCG"), which owns the PRB Crude System, a crude oil gathering system in the 
Powder River Basin with approximately 34 miles of gathering lines as of the acquisition date and approximately 150,000 acres 
dedicated on a long-term fee-based contract, for approximately $36 million. The transaction qualifies as an acquisition of a 
business and is accounted for as a business combination under ASC 805.

105

The following represents the fair value of assets acquired and liabilities assumed (in thousands): 

Accounts receivable ..................................................................................................................... $
Property, plant and equipment .....................................................................................................
Intangible asset.............................................................................................................................
Accounts payable and accrued liabilities.....................................................................................

Net identifiable assets acquired ................................................................................................. $

117

29,306
6,694 (1)
(87)
36,030

(1)  The $6.7 million intangible asset acquired represents a major customer contract. This intangible asset is amortized on a 

straight-line basis over a period of 8 years, the remaining term of the contract at the time of acquisition. 

At September 30, 2017, the assets acquired and liabilities assumed in the acquisition were recorded at provisional amounts 
based on the preliminary purchase price allocation. No adjustments were made to these provisional amounts and the allocation 
of assets acquired and liabilities assumed in the acquisition was considered final as of December 31, 2017. Actual revenue and 
net loss attributable to TGE from TCG of less than $1 million was recognized in the accompanying consolidated statements of 
income for the period from August 3, 2017 to December 31, 2017. 

In February 2018, we entered into an agreement with an affiliate of Silver Creek Midstream, LLC ("Silver Creek") to sell 

our 100% membership interest in TCG, for approximately $50.0 million. The sale of TCG closed on February 23, 2018. During 
the year ended December 31, 2018, we recognized a gain of $9.4 million on the sale which is presented in the line item "Gain 
on disposal of assets" in the consolidated statements of income.

Joint Venture with Silver Creek

In February 2018, we entered into an agreement with Silver Creek to form Iron Horse Pipeline, LLC ("Iron Horse"), which 
owns a new 80-mile crude oil pipeline currently under construction that will transport crude oil from the Powder River Basin to 
Guernsey, Wyoming ("Iron Horse Pipeline"). During the year ended December 31, 2018, we contributed an initial $3.5 million 
and committed to funding our proportionate share of the remaining costs of construction in exchange for a 75% membership 
interest in Iron Horse. As the 75% membership interest does not represent a controlling interest in Iron Horse, our investment in 
Iron Horse is accounted for under the equity method of accounting and reported as "Unconsolidated investments" on the 
consolidated balance sheets.

In August 2018, we entered into an agreement with Silver Creek to expand the Iron Horse joint venture through the 
contribution by us and Silver Creek of cash and additional Powder River Basin assets. These additional contributions closed in 
January 2019. We contributed our 75% membership interest in Iron Horse, $37 million in cash, and various other assets, 
including terminal facilities currently under construction in Guernsey, Wyoming. Silver Creek contributed the Powder River 
Express Pipeline ("PRE Pipeline") and their 25% membership interest in Iron Horse. The expanded joint venture operates under 
the name Powder River Gateway, LLC ("Powder River Gateway"), and owns the Iron Horse Pipeline, the PRE Pipeline, a 70-
mile crude oil pipeline that transports crude oil from the Powder River Basin to Guernsey, Wyoming, and crude oil terminal 
facilities in Guernsey, Wyoming. Effective January 1, 2019, we own a 51% membership interest in Powder River Gateway and 
continue to operate the joint venture, while Silver Creek owns a 49% membership interest.

Acquisitions of Additional Interests in Deeprock Development, LLC

In July 2017, we acquired an additional 40% membership interest in Deeprock Development from Kinder Morgan 

Cushing, LLC for cash consideration of approximately $57.2 million, net of cash acquired. We subsequently acquired an 
additional 9% membership interest in Deeprock Development from Deeprock Energy Resources LLC ("DER") on July 21, 
2017, as discussed further below.

Upon closing of the acquisition of the 40% membership interest on July 20, 2017, we obtained a controlling financial 
interest in Deeprock Development and accordingly have accounted for the transaction as a step acquisition under ASC 805. On 
the acquisition date, we remeasured our previously held 20% equity interest in Deeprock Development to its fair value of $22.9 
million, recognized a gain of $9.7 million in "Gain on remeasurement of unconsolidated investment" in the consolidated 
statements of income, and consolidated Deeprock Development in our consolidated financial statements. The 40% equity 
interest in Deeprock Development held by noncontrolling interests was recorded at its acquisition date fair value of $45.9 
million. The fair values of the previously held equity interest and the noncontrolling interest were determined using a 
discounted cash flow analysis and adjusted for lack of control. These fair value measurements are based on significant inputs, 
such as forecasted cash flows and discount rates, that are not observable in the market and thus represent fair value 
measurements categorized within Level 3 of the fair value hierarchy under ASC 820.

106

The following represents the fair value of assets acquired and liabilities assumed (in thousands): 

Accounts receivable ..................................................................................................................... $
Other current assets......................................................................................................................
Property, plant and equipment .....................................................................................................
Accounts payable .........................................................................................................................
Deferred revenue..........................................................................................................................
Net identifiable assets acquired .................................................................................................
Goodwill ......................................................................................................................................

968

598

70,148
(712)
(6,546)
64,456

61,550

Net assets acquired (excluding cash)......................................................................................... $

126,006

At September 30, 2017, the assets acquired and liabilities assumed in the acquisition were recorded at provisional amounts 
based on the preliminary purchase price allocation. No adjustments were made to these provisional amounts and the allocation 
of assets acquired and liabilities assumed in the acquisition was considered final as of December 31, 2017. The goodwill 
recognized of $61.6 million is primarily attributed to synergies expected from combining our operations with the operations of 
Deeprock Development. All the goodwill was assigned to our Gathering, Processing & Terminalling segment. Actual revenue 
and net income attributable to TGE from Deeprock Development of $10.5 million and $0.9 million, respectively, was 
recognized in the accompanying consolidated statements of income for the period from July 20, 2017 to December 31, 2017. 

In July 2017, subsequent to the acquisition of an additional 40% membership interest discussed above, we acquired an 
additional 9% membership interest in Deeprock Development from DER for total consideration valued at approximately $13.1 
million, consisting of approximately $6.4 million in cash and the issuance of 128,790 TEP common units (valued at 
approximately $6.7 million based on the July 20, 2017 closing price of TEP's common units), which was accounted for as an 
acquisition of noncontrolling interest. Subsequent to the closing of the transaction, our aggregate membership interest in 
Deeprock Development is 69%.

Acquisition of Deeprock North and Merger with Deeprock Development

In January 2018, we acquired an approximate 38% membership interest in Deeprock North, LLC ("Deeprock North") from 

Kinder Morgan Deeprock North Holdco LLC for cash consideration of $19.5 million. Immediately following the acquisition, 
Deeprock North was merged into Deeprock Development, and the members of Deeprock North and Deeprock Development 
received adjusted membership interests in the combined entity. As a result, we recognized additional noncontrolling interests in 
Deeprock Development of $31.8 million. The acquisition of Deeprock North by Deeprock Development has been accounted for 
as an asset acquisition, with substantially all of the fair value allocated to the long-lived assets acquired based on their relative 
fair values. After the acquisition and merger, we own an approximate 60% membership interest in the combined entity.

Acquisition of DCP Douglas, LLC

In June 2017, we acquired 100% of the membership interests in DCP Douglas, LLC (subsequently renamed as Tallgrass 
Midstream Gathering, LLC), which owns the Douglas Gathering System, a natural gas gathering system in the Powder River 
Basin with approximately 1,500 miles of gathering pipeline connected to the Douglas processing plant, for approximately 
$128.5 million. The acquisition has been accounted for as an asset acquisition, with substantially all the fair value allocated to 
the long-lived assets acquired based on their relative fair values. 

Acquisition of Tallgrass Terminals, LLC and Tallgrass NatGas Operator, LLC 

In January 2017, we acquired 100% of the issued and outstanding membership interests in Terminals and 100% of the 

issued and outstanding membership interests in NatGas from TD for total cash consideration of $140 million. These 
acquisitions are considered transactions between entities under common control, and a change in reporting entity. As a result of 
the common control nature of the transaction, the acquisitions resulted in the recognition of a noncash deemed distribution 
representing the excess fair value of the consideration paid over the carrying value of Terminals and NatGas net assets acquired. 
For further discussion, see Note 11 - Partnership Equity.

Acquisitions of Pony Express

In January 2016, we acquired an additional 31.3% membership interest in Pony Express in exchange for cash consideration 

of $475 million and 6,518,000 TEP common units (valued at approximately $268.6 million based on the December 31, 2015 
closing price of our common units) issued to TD, for total consideration of approximately $743.6 million. The transaction 
increased our aggregate membership interest in Pony Express to 98% effective January 1, 2016. As part of the transaction, TD 
granted us an 18-month call option covering the newly issued 6,518,000 common units at a price of $42.50. On the effective 
date of the acquisition, the call option was valued at $46.0 million. As discussed in Note 9 – Risk Management, in July 2016 

107

and October 2016, we partially exercised the option covering 3,563,146 and 1,251,760 of the common units, respectively. In 
February 2017, we exercised the remainder of the call option covering an additional 1,703,094 common units, leaving no 
remaining common units subject to the call option as of such date. As a result of the partial exercises in 2016 and 2017, we 
derecognized a portion of the derivative asset balance, recognizing approximately $34.0 million and $12.6 million through 
equity for the years ended December 31, 2016 and 2017, respectively, as discussed further in Note 9 – Risk Management.

The acquisition of the additional 31.3% membership interest in Pony Express represents a transaction between entities 
under common control and an acquisition of noncontrolling interests. As a result, financial information for periods prior to the 
transaction has not been recast to reflect the additional 31.3% membership interest. As a result of the common control nature of 
the transaction, the acquisition resulted in the recognition of a noncash deemed distribution representing the excess fair value of 
the consideration paid over the carrying value of the 31.3% membership interest in Pony Express acquired. For further 
discussion, see Note 11 - Partnership Equity.

Cash outflows to acquire an additional noncontrolling interest in Pony Express are classified as an investing activity in the 

accompanying consolidated statements of cash flows to the extent the consideration paid was used to directly fund the 
construction of the underlying assets by the noncontrolling member. Cash outflows to acquire an additional noncontrolling 
interest in excess of the cost to construct the underlying assets are classified as financing activities. For the year ended 
December 31, 2016, $49.1 million of the $475 million paid to acquire the additional 31.3% membership interest in Pony 
Express was classified as an investing activity and $425.9 million was classified as a financing activity.

In February 2018, we acquired the remaining 2% membership interest in Pony Express, along with administrative assets 
consisting primarily of information technology assets, from TD for cash consideration of approximately $60 million, bringing 
our aggregate membership interest in Pony Express to 100%. The acquisition of the remaining 2% membership interest in Pony 
Express represents a transaction between entities under common control and an acquisition of noncontrolling interests. As a 
result, financial information for periods prior to the transaction has not been recast to reflect the additional 2% membership 
interest. As a result of the common control nature of the transaction, the acquisition resulted in the recognition of a noncash 
deemed distribution representing the excess fair value of the consideration paid over the carrying value of the 2% membership 
interest in Pony Express acquired. For further discussion, see Note 11 – Partnership Equity.

Pro Forma Financial Information

Unaudited pro forma revenue and net income (loss) attributable to TGE for the years ended December 31, 2018 and 2017 

is presented below as if the acquisitions of BNN North Dakota, NGL Water Solutions Bakken, and BNN Colorado had been 
completed on January 1, 2017. Unaudited pro forma revenue and net (loss) income attributable to TGE for the years ended 
December 31, 2017 and 2016 is presented below as if the acquisitions of TCG and Deeprock Development had been completed 
on January 1, 2016.

Year Ended December 31,

2018

2017

(in thousands)

2016

Revenue................................................................................... $
Net income (loss) attributable to TGE .................................... $

813,286

140,005

$

$

686,803
$
(129,155) $

632,528

34,311

The pro forma financial information is not necessarily indicative of what the actual results of operations or financial 
position of TGE would have been if the transactions had in fact occurred on the date or for the period indicated, nor do they 
purport to project the results of operations or financial position of TGE for any future periods or as of any date. The pro forma 
financial information does not give effect to any cost savings, operating synergies, or revenue enhancements expected to result 
from the transactions or the costs to achieve these cost savings, operating synergies, and revenue enhancements. The pro forma 
revenue and net income (loss) includes adjustments to give effect to the estimated results of operations of BNN North Dakota, 
NGL Water Solutions Bakken, BNN Colorado, TCG, and Deeprock Development for the periods presented. The pro forma net 
income (loss) also includes adjustments to eliminate the equity in earnings and gain on remeasurement of unconsolidated 
investment associated with our previously held 20% membership interest in Deeprock Development and to eliminate the equity 
in earnings associated with our 63% membership interest in BNN Colorado which was previously accounted for as an equity 
method investment.

108

Historical Financial Information

The results of our acquisitions of Terminals and NatGas are included in the consolidated balance sheets as of December 31, 

2018 and December 31, 2017 and in the consolidated statements of income for the years ended December 31, 2018, 2017, and 
2016. The following table presents the previously reported consolidated statements of income for the year ended December 31, 
2016 adjusted for the acquisitions of Terminals and NatGas:

Year Ended December 31, 2016

TGE (As
previously
reported)

Consolidate
Terminals

Consolidate
NatGas

Elimination

TGE (As
currently
reported)

Revenues:

Crude oil transportation services ............. $ 374,949
119,962
Natural gas transportation services..........
Sales of natural gas, NGLs, and crude
oil.............................................................
Processing and other revenues.................
Total Revenues....................................

605,122

32,817

77,394

$

Operating Costs and Expenses:

Cost of sales.............................................
Cost of transportation services ................
Operations and maintenance....................
Depreciation and amortization ................
General and administrative......................
Taxes, other than income taxes................
Contract termination................................
Loss on disposal of assets........................
Total Operating Costs and Expenses ..
Operating Income (Expense)........................
Other Income (Expense):

Equity in earnings of unconsolidated
investments ..............................................
Interest expense, net ................................
Other income, net ....................................
Total Other Income .............................
Net income before tax ..................................

Deferred income tax expense ..................

Net income ...................................................

71,920

58,341

53,386

84,896

55,829

24,727

—

1,849

350,948

254,174

51,780

(45,601)

432

6,611
260,785

(17,741)

243,044

Net income attributable to
noncontrolling interests ...........................
Net income attributable to TGE ................... $

(216,250)

26,794

$

(in thousands)

$

— $

—

—

6,228

6,228

—

—

—

—

—

—

—

—

—

6,228

—

—

—

—
6,228

—

6,228

—

$

6,228

$

—

—

99

12,043

12,142

100

788

1,684

1,351

1,469

673
8,061 (3)
—

14,126
(1,984)

2,751

—

—

2,751
767

—

767

—

767

—

—

$

374,949

119,962

(370) (1)
(11,460) (2)
(11,830)

(370) (1)
(11,460) (2)
—

—

—

—

—

—
(11,830)
—

—

—

—

—
—

—

—

—

—

77,123

39,628

611,662

71,650

47,669

55,070

86,247

57,298

25,400

8,061

1,849

353,244

258,418

54,531
(45,601)
432

9,362
267,780
(17,741)
250,039

(216,250)
33,789

$

(1)  Represents the elimination of revenue and cost of sales associated with the purchase of crude oil from Pony Express by 

Terminals.

(2)  Represents the elimination of revenue and cost of transportation services associated with the lease of the Sterling Terminal 

facilities by Pony Express.

(3)  Represents a one-time charge related to the termination of an operating agreement at the Sterling Terminal.

109

4.  Related Party Transactions 

As a result of our relationship with Tallgrass Energy Holdings, LLC ("Tallgrass Energy Holdings") and its affiliates, we 

have entered into a number of related party transactions. The following disclosure includes those related party transactions 
which are not otherwise disclosed in these notes to our consolidated financial statements.

All of our employees are employed by Tallgrass Management, LLC ("Tallgrass Management"). Prior to July 1, 2018, 
Tallgrass Management was a wholly-owned subsidiary of Tallgrass Energy Holdings. In connection with the closing of the TEP 
initial public offering on May 17, 2013, TEP and TEP GP entered into an Omnibus Agreement with Tallgrass Energy Holdings 
and certain of its affiliates (the "TEP Omnibus Agreement"). The TEP Omnibus Agreement provides that, among other things, 
TEP will reimburse Tallgrass Energy Holdings and its affiliates for all expenses they incur and payments they make on TEP's 
behalf, including the costs of employee and director compensation and benefits as well as the cost of the provision of certain 
centralized corporate functions performed by Tallgrass Energy Holdings and its affiliates, including legal, accounting, cash 
management, insurance administration and claims processing, risk management, health, safety and environmental, information 
technology and human resources in each case to the extent reasonably allocable to TEP. In addition, in connection with the 
closing of the TGE initial public offering on May 12, 2015 (the "TGE IPO"), TGE entered into an Omnibus Agreement (the 
"TGE Omnibus Agreement") with Tallgrass Energy GP, LLC (formerly known as TEGP Management, LLC), Tallgrass Equity 
and Tallgrass Energy Holdings.

Effective July 1, 2018, Tallgrass Management was contributed to Tallgrass Equity in connection with the TEP Merger. As a 

result, the costs of employer and director compensation and benefits are now incurred directly by Tallgrass Equity.

Totals of transactions with affiliated companies, excluding transactions disclosed elsewhere in these notes, are as follows:

Processing and other revenues (1) ....................................................... $
Cost of transportation services (2)
$
Charges to TGE: (3)

Property, plant and equipment, net ............................................. $
Other deferred charges................................................................ $
Operations and maintenance....................................................... $
General and administrative ......................................................... $

Year Ended December 31,

2018

2017

2016

(in thousands)

7,483

$

— $

— $

— $

— $

— $

8,516

10,476

2,679

25

29,881

41,676

$

$

$

$

$

$

6,228

18,585

3,084

44

25,431

40,321

(1)  Reflects the fee that NatGas receives as the operator of the Rockies Express Pipeline.

(2)  Reflects rent expense for the crude oil storage at the Deeprock Terminal prior to our consolidation of Deeprock 

Development during the third quarter of 2017, as discussed in Note 3 – Acquisitions and Dispositions.

(3)  Charges to TGE, inclusive of Tallgrass Equity and TEP, include indirectly charged wages and salaries, other 

compensation and benefits, and shared services for periods prior to January 1, 2018. Effective January 1, 2018, these 
costs are incurred by TEP directly and, in the case of certain employee compensation and benefits, paid on TEP's 
behalf by its affiliate, Tallgrass Management, LLC, pursuant to the TEP Omnibus Agreement.

110

 
Details of balances with affiliates included in "Accounts receivable, net" and "Accounts payable" in the consolidated 

balance sheets are as follows: 

December 31, 2018 December 31, 2017
(in thousands)

Receivable from related parties:

Rockies Express Pipeline LLC................................................................... $
Iron Horse Pipeline, LLC ...........................................................................

Pawnee Terminal, LLC...............................................................................

3,447

$

186

115

Total receivable from related parties................................................... $

3,748

$

Accounts payable to related parties:

Tallgrass Operations, LLC (1) ..................................................................... $
Total accounts payable to related parties ............................................ $

— $

— $

1,340

—

—

1,340

5,342

5,342

(1)  Reflects accounts payable for charges to TGE, inclusive of Tallgrass Equity and TEP, including indirectly charged 

wages and salaries, other compensation and benefits, and shared services prior to January 1, 2018 as discussed above.

Gas imbalances with affiliated shippers are as follows:

Affiliate gas imbalance receivables................................................................... $
Affiliate gas imbalance payables....................................................................... $

19

742

$

$

18

442

December 31, 2018 December 31, 2017
(in thousands)

5. 

Inventory 

The components of inventory at December 31, 2018 and 2017 consisted of the following:

December 31, 2018

December 31, 2017

Crude oil ...................................................................................................... $
Materials and supplies .................................................................................

Gas in underground storage.........................................................................

Natural gas liquids.......................................................................................

(in thousands)

23,205

$

8,206

2,740

165

Total inventory........................................................................................ $

34,316

$

12,792

5,891

1,984

942

21,609

6.  Property, Plant and Equipment 

A summary of net property, plant and equipment by classification is as follows:

December 31, 2018 December 31, 2017
(in thousands)

Crude oil pipelines............................................................................................. $
Gathering, processing and terminalling assets (1) ..............................................
Natural gas pipelines .........................................................................................
General and other (2) ..........................................................................................
Construction work in progress...........................................................................

Accumulated depreciation and amortization .....................................................

Total property, plant and equipment, net (3) .................................................. $

1,313,976

$

1,220,379

889,168

607,343

180,299

191,994
(380,351)
2,802,429

$

675,092

581,400

98,680

97,978
(279,192)
2,394,337

(1) 

Includes approximately $53.6 million and $46.2 million of assets associated with the acquisitions of BNN North 
Dakota in January and November 2018 and Deeprock North in January 2018, respectively.

111

 
 
 
 
(2) 

Includes approximately $30.7 million of land associated with the PLT capital lease as discussed in Note 3 – 
Acquisitions and Dispositions.

(3)  Property, plant and equipment, net includes approximately $455.8 million of assets at our regulated natural gas 

pipelines at December 31, 2018.

Depreciation expense was approximately $102.7 million, $86.9 million, and $83.2 million for the years ended 

December 31, 2018, 2017, and 2016, respectively. Capitalized interest was approximately $5.2 million, $1.1 million, and $0.6 
million for the years ended December 31, 2018, 2017, and 2016, respectively.

Under various lease agreements, TMID, as lessor, leases capacity on NGL pipelines that were constructed for third parties, 
and Deeprock Development, as lessor, leases capacity on certain of its storage facilities under lease agreements acquired as part 
of the Deeprock North acquisition on January 2, 2018. Rental income for these arrangements was approximately $10.9 million, 
$3.8 million, and $3.2 million for the years ended December 31, 2018, 2017, and 2016, respectively, and was recorded as 
"Processing and other revenues" in the accompanying consolidated statements of income. Under a lease agreement initially 
effective November 13, 2012, TIGT, as lessor, leases a portion of its office space to a third party. Rental income was 
approximately $0.8 million for the years ended December 31, 2018, 2017, and 2016 and was recorded as "Other income, net" 
in the accompanying consolidated statements of income. 

As of December 31, 2018, future minimum rental income under non-cancelable operating leases as the lessor were as 

follows (in thousands):

Year
2019......................................................................................

$

2020......................................................................................

2021......................................................................................

2022......................................................................................

2023......................................................................................

Thereafter .............................................................................

Total

7,742

3,952

3,773

3,773

3,773

7,353

Total......................................................................................

$

30,366

7. 

Investments in Unconsolidated Affiliates 

Rockies Express

Our investment in Rockies Express is recorded under the equity method of accounting and is reported as "Unconsolidated 

investments" on our consolidated balance sheets. As of May 6, 2016, the difference between the fair value of our 25% 
membership interest in Rockies Express of $436.0 million and the book value of the underlying net assets resulted in a negative 
basis difference of approximately $404.7 million. As discussed in Note 3 – Acquisitions and Dispositions, we acquired an 
additional 24.99% and 25.01% membership interest in Rockies Express from TD on March 31, 2017 and February 7, 2018, 
respectively. As of March 31, 2017, the negative basis difference carried over from TD from the transfer of the 24.99% Rockies 
Express membership interest was approximately $386.8 million. As of February 7, 2018, the negative basis difference carried 
over from TD from the transfer of the 25.01% Rockies Express membership interest was approximately $376.5 million. The 
transfer of the 24.99% Rockies Express membership interest between TD and TEP and the 25.01% Rockies Express 
membership interest between TD and Tallgrass Equity are considered transactions between entities under common control, but 
does not represent a change in reporting entity. As a result of the common control nature of the transactions, the 24.99% and 
25.01% membership interests in Rockies Express were transferred to TEP and Tallgrass Equity, respectively, at TD's historical 
carrying amount, including the remaining unamortized basis difference driven by the difference between the fair value of the 
investments and the book value of the underlying assets and liabilities on November 13, 2012, the date of acquisition by TD.

112

The amount of the basis difference allocated to property, plant and equipment is accreted over 35 years, which equates to 
the 2.86% composite depreciation rate utilized by Rockies Express to depreciate the underlying property, plant and equipment. 
The amount allocated to long-term debt is amortized over the remaining life of the various debt facilities. At December 31, 
2018, the basis difference for our membership interests in Rockies Express was allocated as follows:

Basis Difference
(in thousands)

Amortization Period

Long-term debt ............................................................................................ $
Property, plant and equipment .....................................................................

Total basis difference .............................................................................. $

47,182
(1,146,984)
(1,099,802)

2 - 25 years
35 years

During the year ended December 31, 2018, we recognized equity in earnings associated with our aggregate 75% 

membership interest in Rockies Express of $303.4 million, inclusive of the amortization of the negative basis difference, and 
received distributions from and made contributions to Rockies Express of $380.7 million and $432.0 million, respectively. 

In July 2018, we made a special contribution of approximately $412.5 million to fund our portion of the repayment of 

Rockies Express' $550 million of 6.85% senior notes due July 15, 2018.

BNN Colorado Water, LLC

As discussed in Note 3 – Acquisitions and Dispositions, we consolidated BNN Colorado effective December 1, 2018 and 

no longer account for our investment in BNN Colorado under the equity method of accounting.

Deeprock Development

As discussed in Note 3 – Acquisitions and Dispositions, on July 20, 2017, we acquired an additional 40% membership 
interest in Deeprock Development. As a result of the acquisition, we consolidated Deeprock Development and effective July 20, 
2017 we no longer account for our investment in Deeprock Development under the equity method of accounting.

Summarized Financial Information of Unconsolidated Affiliates

Combined summarized financial information for all our unconsolidated affiliates is shown in the tables below. Summarized 

financial information for Deeprock Development is presented from January 1, 2016 to July 20, 2017, the date we acquired a 
controlling interest in Deeprock Development. Summarized financial information for Rockies Express is presented from the 
date of the initial acquisition of May 6, 2016 to December 31, 2018. Summarized financial information for BNN Colorado is 
presented from the date of the acquisition, June 23, 2017 to December 1, 2018, the date we acquired a controlling interest in 
BNN Colorado. Summarized financial information for Iron Horse is presented from the date of the acquisition, February 23, 
2018 to December 31, 2018. Summarized financial information for Pawnee Terminal is presented from the date of the 
acquisition, April 1, 2018 to December 31, 2018.

Current assets .......................................................................................... $
Noncurrent assets .................................................................................... $
Current liabilities..................................................................................... $
Noncurrent liabilities............................................................................... $
Members' equity...................................................................................... $

December 31, 2018

December 31, 2017

(in thousands)

132,213
6,031,066
694,951
1,502,906
3,965,422

$
$
$
$
$

122,362
5,974,926
714,037
2,049,189
3,334,062

Revenue................................................................................... $
Operating income .................................................................... $
Net income to Members .......................................................... $

930,771

524,607

376,934

$

$

$

860,115

480,337

465,592

$

$

$

440,838

203,801

184,314

Year Ended December 31,

2018

2017
(in thousands)

2016

113

 
 
8.  Goodwill and Other Intangible Assets 

Reconciliation of Goodwill

The following table presents a reconciliation of the carrying amount of goodwill by reportable segment for the reporting 

period: 

Year Ended December 31, 2018

Year Ended December 31, 2017

Natural Gas
Transportation

Gathering,
Processing &
Terminalling

Total

Natural Gas
Transportation

(in thousands)

Gathering,
Processing &
Terminalling

Total

Balance at beginning of
period..................................... $
Goodwill acquired .................
Balance at end of period ........ $

255,558

—

255,558

$

$

149,280
17,145 (1)
166,425

$ 404,838

17,145

$ 421,983

$

$

255,558

—

255,558

$

$

87,730
61,550 (2)
149,280

$ 343,288

61,550

$ 404,838

(1)  The $17.1 million of goodwill was recorded in connection with the acquisition of NGL Water Solutions Bakken on 

November 30, 2018 as discussed further in Note 3 – Acquisitions and Dispositions.

(2)  The $61.6 million of goodwill was recorded in connection with the acquisition of a controlling interest in Deeprock 

Development on July 20, 2017 as discussed further in Note 3 – Acquisitions and Dispositions.

Annual Goodwill Impairment Analysis

In 2018, we elected to apply the qualitative assessment option for four of our five reporting units. In conducting the 
qualitative assessment we considered relevant factors and circumstances that affect the fair value or carrying amount of the 
reporting entity. Such factors included changes in discount rates, projected cash flows, macroeconomic considerations, industry 
and market considerations, overall financial performance, prior quantitative results, and entity and reporting unit specific 
events. For each of these reporting units, the results of the qualitative assessment indicated that it was more likely than not that 
the fair value of the reporting units exceeded their respective book values. As such, we did not perform a quantitative 
impairment analysis, and we concluded that no impairment was indicated as of August 31, 2018.

We did not elect to apply the qualitative assessment option for one reporting unit during our 2018 annual goodwill 

impairment testing; instead we proceeded directly to the quantitative impairment test. We compared the fair value of the 
reporting unit with its respective book value, including goodwill, by using an income approach based on a discounted cash flow 
analysis. The fair value of the reporting unit was determined on a stand-alone basis from the perspective of a market participant 
and included a sensitivity analysis of the impact of changes in various assumptions. This approach required us to make long-
term forecasts of future operating results and various other assumptions and estimates, the most significant of which are 
revenue, operating expenses, general and administrative expenses, terminal growth rates, maintenance capital expenditures, and 
the weighted average cost of capital. The fair value of the reporting unit was determined using significant unobservable inputs, 
considered Level 3 under the fair value hierarchy in the Codification. For this reporting unit, the results of the quantitative 
impairment test indicated no impairment as the fair value of the reporting unit was greater than its respective book value. As a 
result, in accordance with the Codification guidance, we did not record a goodwill impairment during the year ended December 
31, 2018. Unpredictable events or deteriorating market or operating conditions could result in a future change to the discounted 
cash flow model and cause impairments in the future. We continue to monitor potential impairment indicators to determine if a 
triggering event occurs and will perform additional goodwill impairment analyses as necessary.

114

 
 
 
Other Intangible Assets

A summary of amortized intangible assets is as follows:

December 31, 2018 December 31, 2017

Pony Express oil conversion use rights ............................................................. $
Customer contracts ............................................................................................
Customer relationships ......................................................................................
Plaquemines Liquids Terminal use rights and permits......................................
Accumulated amortization.................................................................................

Intangible assets, net..................................................................................... $

(in thousands)

105,973

$

105,973

60,348

52,100

35,000
(26,318)
227,103

$

8,064

—

—
(16,306)
97,731

Amortization of intangible assets was approximately $8.1 million, $3.8 million, and $3.0 million for the years ended 

December 31, 2018, 2017, and 2016, respectively.

Estimated future amortization for the intangible assets is as follows (in thousands):

Year
2019......................................................................................

2020......................................................................................

2021......................................................................................

2022......................................................................................

2023......................................................................................

Thereafter .............................................................................
Total (1)..................................................................................

$

$

Total

16,528

16,347

16,294

13,144

13,144

116,646

192,103

(1)  Excludes the $35 million intangible asset at PLT, as discussed in Note 3 – Acquisitions and Dispositions, that will be 

amortized over 35 years beginning on the in-service date of the project facilities.

9.  Risk Management 

We enter into derivative contracts with third parties for the purpose of hedging exposures that accompany our normal 
business activities. We also engage in the business of trading energy related products and services, which exposes us to market 
variables and commodity price risk. We may enter into physical contracts or financial instruments with the objective of 
realizing a positive margin from the purchase and sale of these commodity-based instruments.

Our normal business activities directly and indirectly expose us to risks associated with changes in the market price of 
crude oil and natural gas, among other commodities. For example, the risks associated with changes in the market price of 
crude oil and natural gas include, among others (i) pre-existing or anticipated physical crude oil and natural gas sales, 
(ii) natural gas purchases and (iii) natural gas system use and storage. We have elected not to apply hedge accounting and 
changes in the fair value of all derivative contracts are recorded in earnings in the period in which the change occurs.

Fair Value of Derivative Contracts

The following table summarizes the fair values of our derivative contracts included in the consolidated balance sheets:

Balance Sheet
Location

December 31, 2018

December 31, 2017

Crude oil derivative contracts (1).... Prepayments and other current

assets .............................................
Crude oil derivative contracts (2).... Other current liabilities .................

$

$

(in thousands)

3,526

1,642

$

$

—

2,368

(1)  As of December 31, 2018, the fair value shown for crude oil derivative contracts represents the forward purchase of 

2,105,146 barrels of crude oil, consisting of fixed price and floating price contracts, which will settle throughout 2019. 

115

 
 
 
(2)  As of December 31, 2018, the fair value shown for crude oil derivative contracts represents the forward sale of 

1,274,500 barrels of crude oil, consisting of fixed price and floating price contracts, which will settle throughout the 
first quarter of 2019. As of December 31, 2017, the fair value shown for crude oil derivative contracts represents the 
forward sale of 356,000 barrels of crude oil, consisting of fixed price and floating price contracts, which settled in the 
first quarter of 2018.

Effect of Derivative Contracts in the Statements of Income

The following table summarizes the impact of derivative contracts not designated as hedging contracts for the years ended 

December 31, 2018, 2017 and 2016:

Location of
gain (loss) recognized
in income on derivatives

Amount of gain (loss) recognized in income on derivatives

Year Ended December 31,

2018

2017

(in thousands)

2016

Sales of natural gas, NGLs, and
crude oil.....................................

Crude oil derivative
contracts ........................
Sales of natural gas, NGLs, and
Natural gas derivative
crude oil.....................................
contracts ........................
Call option derivative.... Other income, net ......................

$

$

$

Call Option Derivative

29,510

$

— $

— $

39

75

1,885

$

$

$

(40)

74
(1,291)

As part of our acquisition of an additional 31.3% membership interest in Pony Express effective January 1, 2016, TD 
granted TEP an 18 month call option at an exercise price of $42.50 per TEP common unit covering the 6,518,000 TEP common 
units issued to TD as a portion of the consideration. In July 2016 and October 2016, TEP partially exercised the call option 
covering 3,563,146 and 1,251,760 common units, respectively, for cash payments of $151.4 million and $53.2 million, 
respectively. On February 1, 2017, TEP exercised the remainder of the call option covering an additional 1,703,094 common 
units for a cash payment of $72.4 million. These common units were deemed canceled upon the exercise of the call option and 
as of the applicable exercise date were no longer issued and outstanding.

Credit Risk

We have counterparty credit risk as a result of our use of derivative contracts. Counterparties to our commodity derivatives 

consist of market participants and major financial institutions. This concentration of counterparties may impact our overall 
exposure to credit risk, either positively or negatively, in that the counterparties may be similarly affected by changes in 
economic, regulatory or other conditions. The counterparty to our call option derivative was TD.

Our derivative contracts are entered into with counterparties through central trading organizations such as futures, options 

or stock exchanges or counterparties outside of central trading organizations. While we typically enter into derivative 
transactions with investment grade counterparties and actively monitor their credit ratings, it is nevertheless possible that from 
time to time losses will result from counterparty credit risk in the future. The maximum potential exposure to credit losses on 
our crude oil derivative contracts at December 31, 2018 was:

Gross.................................................................................................................................................. $
Netting agreement impact..................................................................................................................
Cash collateral held ...........................................................................................................................
Net exposure...................................................................................................................................... $

3,526

—

—

3,526

As of December 31, 2018, we did not have any cash in margin accounts or outstanding letters of credit in support of our 
commodity derivatives. As of December 31, 2017, we had $3.0 million of cash in margin accounts and outstanding letters of 
credit in support of our commodity derivative contracts.

Asset Position

(in thousands)

116

 
 
 
Fair Value

Derivative assets and liabilities are measured and reported at fair value. Derivative contracts can be exchange-traded or 

over-the-counter ("OTC"). OTC commodity derivatives are valued using models utilizing a variety of inputs including 
contractual terms and commodity and interest rate curves. The selection of a particular model and particular inputs to value an 
OTC derivative contract depends upon the contractual terms of the instrument as well as the availability of pricing information 
in the market. We use similar models to value similar instruments. For OTC derivative contracts that trade in liquid markets, 
such as generic forwards and swaps, model inputs can generally be verified and model selection does not involve significant 
management judgment. Such contracts are typically classified within Level 2 of the fair value hierarchy.

The following table summarizes the fair value measurements of our derivative contracts as of December 31, 2018 and 

2017, based on the fair value hierarchy:

Asset Fair Value Measurements Using

Quoted prices in
active markets
for identical
assets
(Level 1)

Significant
other observable
inputs
(Level 2)

Significant
unobservable
inputs
(Level 3)

(in thousands)

Total

As of December 31, 2018:

Crude oil derivative contracts........................ $

3,526

$

— $

3,526

$

—

Liability Fair Value Measurements Using

Quoted prices in
active markets
for identical
assets
(Level 1)

Significant
other observable
inputs
(Level 2)

Significant
unobservable
inputs
(Level 3)

(in thousands)

Total

As of December 31, 2018:

Crude oil derivative contracts ..................... $

1,642

As of December 31, 2017:

Crude oil derivative contracts ..................... $

2,368

$

$

— $

1,642

— $

2,368

$

$

—

—

10.  Long-term Debt 

Long-term debt consisted of the following at December 31, 2018 and 2017:

December 31, 2018 December 31, 2017

Tallgrass Equity revolving credit facility (1) ...................................................... $
TEP revolving credit facility .............................................................................
TEP 4.75% senior notes due October 1, 2023...................................................
TEP 5.50% senior notes due September 15, 2024.............................................
TEP 5.50% senior notes due January 15, 2028 .................................................
Less: Deferred financing costs, net (2) .............................................................
Plus: Unamortized premium on 2028 Notes ...................................................

Total long-term debt, net ................................................................................... $

(in thousands)
— $

1,224,000
500,000
750,000
750,000
(21,421)
3,379
3,205,958

$

146,000
661,000
—
750,000
750,000
(17,737)
3,730
2,292,993

(1)  On July 26, 2018, Tallgrass Equity repaid all outstanding borrowings and terminated its revolving credit facility.

(2)  Deferred financing costs, net as presented above relate solely to the Senior Notes (as defined below). Deferred 

financing costs associated with our revolving credit facilities are presented in noncurrent assets on our consolidated 
balance sheets.

117

 
 
 
 
 
 
 
TEP Senior Unsecured Notes

On September 26, 2018, TEP and Tallgrass Energy Finance Corp. (the "Co-Issuer" and together with TEP, the "Issuers"), 
the Guarantors named therein and U.S. Bank, National Association, as trustee, entered into an Indenture dated September 26, 
2018 (the "2023 Indenture") pursuant to which the Issuers issued $500 million in aggregate principal amount of 4.75% senior 
notes due 2023 (the "2023 Notes").

The 2023 Indenture contains covenants that, among other things, limit TEP's ability and the ability of its restricted 
subsidiaries to: (i) create liens to secure indebtedness; (ii) enter into sale-leaseback transactions; and (iii) consolidate with or 
merge with or into, or sell substantially all TEP's properties to, another person.

The Issuers have also previously issued $500 million in aggregate principal amount of 5.50% senior notes due 2028 (the 

"2028 Notes") on September 15, 2017 and an additional $250 million in aggregate principal amount of the 2028 Notes on 
December 11, 2017. The 2028 Notes issued on September 15, 2017 and December 11, 2017 are treated as a single class of debt 
securities and have identical terms, other than the issue date and offering price. The 2028 Notes are governed by an Indenture 
dated September 15, 2017 (the "2028 Indenture") which contains covenants that, among other things, limit TEP's ability and the 
ability of its restricted subsidiaries to: (i) create liens to secure indebtedness; (ii) enter into sale-leaseback transactions; and (iii) 
consolidate with or merge with or into, or sell substantially all TEP's properties to, another person.

In addition, the Issuers have previously issued $400 million in aggregate principal amount of 5.50% senior notes due 2024 

(the "2024 Notes") on September 1, 2016 and an additional $350 million in aggregate principal amount of the 2024 Notes on 
May 16, 2017. The 2024 Notes issued on September 1, 2016 and May 16, 2017 are treated as a single class of debt securities 
and have identical terms, other than the issue date, offering price and first interest payment date.

The 2024 Notes are governed by an Indenture dated September 1, 2016 (the "2024 Indenture") which contains covenants 

that, among other things, limit TEP's ability and the ability of its restricted subsidiaries to: (i) incur, assume or guarantee 
additional indebtedness or issue preferred units; (ii) create liens to secure indebtedness; (iii) pay distributions on equity interests 
in the event of default or noncompliance with the covenants required, repurchase equity securities or redeem subordinated 
securities; (iv) make investments; (v) restrict distributions, loans or other asset transfers from TEP's restricted subsidiaries; 
(vi) consolidate with or merge with or into, or sell substantially all of TEP's properties to, another person; (vii) sell or otherwise 
dispose of assets, including equity interests in subsidiaries; and (viii) enter into transactions with affiliates.

The 2023 Notes, 2024 Notes, and 2028 Notes are together referred to as the "Senior Notes." As of December 31, 2018, 
TEP was in compliance with the covenants required under the 2023 Indenture, the 2024 Indenture, and the 2028 Indenture.

TEP Revolving Credit Facility

The following table sets forth the available borrowing capacity under the TEP revolving credit facility as of December 31, 

2018 and 2017:

December 31, 2018 December 31, 2017
(in thousands)

Total capacity under the TEP revolving credit facility...................................... $
Less: Outstanding borrowings under the TEP revolving credit facility .......

Less: Letters of credit issued under the TEP revolving credit facility..........
Available capacity under the TEP revolving credit facility............................... $

2,250,000
(1,224,000)
(94)
1,025,906

$

$

1,750,000
(661,000)
(94)
1,088,906

On July 26, 2018, TEP and certain of its subsidiaries entered into Amendment No. 1 (the "Amendment") to its existing 

revolving credit facility with Wells Fargo Bank, National Association, as administrative agent and collateral agent, and a 
syndicate of lenders (the "Credit Agreement"). The Amendment modified certain provisions of the Credit Agreement to, among 
other things, (i) increase the available amount of the TEP revolving credit facility to $2.25 billion, (ii) reduce certain applicable 
margins in the pricing grids used to determine the interest rate and revolving credit commitment fees, (iii) modify the use of 
proceeds to allow TEP to pay off the Tallgrass Equity revolving credit facility, and (iv) increase the maximum total leverage 
ratio to 5.50 to 1.00.

TEP's revolving credit facility contains various covenants and restrictive provisions that, among other things, limit or 
restrict TEP's ability (as well as the ability of its restricted subsidiaries) to incur or guarantee additional debt, incur certain liens 
on assets, dispose of assets, make certain distributions, including distributions from available cash, if a default or event of 
default under the credit agreement then exists or would result therefrom, change the nature of its business, engage in certain 
mergers or make certain investments and acquisitions, enter into non-arms-length transactions with affiliates and designate 
certain subsidiaries as "Unrestricted Subsidiaries." In addition, TEP is required to maintain a consolidated leverage ratio of not 
more than 5.50 to 1.00 (5.00 to 1.00 prior to the Amendment), a consolidated senior secured leverage ratio of not more than 

118

 
3.75 to 1.00 and a consolidated interest coverage ratio of not less than 2.50 to 1.00. As of December 31, 2018, TEP was in 
compliance with the covenants required under its revolving credit facility. The consummation of the Blackstone Acquisition 
would constitute an event of default under TEP's revolving credit agreement. The closing conditions of the Blackstone 
Acquisition include TEP obtaining the consent or waiver of the required lenders under TEP's revolving credit facility in 
connection with the transactions contemplated by the Blackstone Acquisition. 

The unused portion of TEP's revolving credit facility is subject to a commitment fee, which ranges from 0.250% to 0.375% 

(0.250% to 0.500% prior to the Amendment), based on TEP's total leverage ratio. As of December 31, 2018, the weighted 
average interest rate on outstanding borrowings under the TEP revolving credit facility was 3.96%. During the year ended 
December 31, 2018, the weighted average effective interest rate under the TEP revolving credit facility, including the interest 
on outstanding borrowings under TEP's revolving credit facility, commitment fees, and amortization of deferred financing 
costs, was 4.11%.

Fair Value

The following table sets forth the carrying amount and fair value of our long-term debt, which is not measured at fair value 

in the consolidated balance sheets as of December 31, 2018 and 2017, but for which fair value is disclosed:

Fair Value

Quoted prices
in active markets
for identical assets
(Level 1)

Significant
other observable
inputs
(Level 2)

Significant
unobservable
inputs
(Level 3)

(in thousands)

Total

Carrying
Amount

As of December 31, 2018:

Revolving credit facility..... $
2023 Notes.......................... $
2024 Notes.......................... $
2028 Notes.......................... $

As of December 31, 2017:

Revolving credit facilities .. $
2024 Notes.......................... $
2028 Notes.......................... $

— $

— $

— $

— $

— $

— $

— $

1,224,000

485,285

737,745

726,503

807,000

771,645

758,168

$

$

$

$

$

$

$

— $ 1,224,000

$ 1,224,000

— $

485,285

— $

737,745

— $

726,503

— $

807,000

— $

771,645

— $

758,168

$

$

$

$

$

$

494,603

741,196

746,159

807,000

739,824

746,169

The long-term debt borrowed under the revolving credit facilities is carried at amortized cost. As of December 31, 2018 
and 2017, the fair value of borrowings under the revolving credit facilities approximates the carrying amount of the borrowings 
using a discounted cash flow analysis. The Senior Notes are carried at amortized cost, net of deferred financing costs. The 
estimated fair value of the Senior Notes is based upon quoted market prices adjusted for illiquid markets. We are not aware of 
any factors that would significantly affect the estimated fair value subsequent to December 31, 2018.

119

 
 
 
11.  Partnership Equity 

TGE Dividends to Holders of Class A Shares

The following table details the dividends for the periods indicated:

Date Paid

Three Months Ended
December 31, 2018 .............................. February 14, 2019 (1)....
September 30, 2018.............................. November 14, 2018 .....
June 30, 2018........................................ August 14, 2018...........
March 31, 2018 .................................... May 15, 2018...............
December 31, 2017 .............................. February 14, 2018........
September 30, 2017.............................. November 14, 2017 .....
June 30, 2017........................................ August 14, 2017...........
March 31, 2017 .................................... May 15, 2017...............
December 31, 2016 .............................. February 14, 2017........
September 30, 2016.............................. November 14, 2016 .....
June 30, 2016........................................ August 12, 2016...........
March 31, 2016 .................................... May 13, 2016...............

Dividends to Class A
Shareholders

Dividends per Class A
Share

$

81,304

$

79,717

77,052

28,316

21,346

20,617

19,891

16,697

16,116

12,528

11,693

10,022

0.5200

0.5100

0.4975

0.4875

0.3675

0.3550

0.3425

0.2875

0.2775

0.2625

0.2450

0.2100

(1)  The dividend announced on January 15, 2019 for the fourth quarter of 2018 will be paid on February 14, 2019 to Class 

A shareholders of record at the close of business on January 31, 2019.

Subsidiary Distributions    

TEP Distributions. The following table shows the distributions for the periods indicated:

Three Months Ended

Date Paid

Limited Partner
Common Units

Distributions

General Partner

Incentive
Distribution
Rights

General
Partner
Units

Distribution
per Limited
Partner
Common
Unit

Total

March 31, 2018 ........ May 15, 2018 .............
December 31, 2017 .. February 14, 2018 ......
September 30, 2017 . November 14, 2017....
June 30, 2017 ........... August 14, 2017 .........
March 31, 2017 ........ May 15, 2017 .............
December 31, 2016 .. February 14, 2017 ......
September 30, 2016 . November 14, 2016....
June 30, 2016 ........... August 12, 2016 .........
March 31, 2016 ........ May 13, 2016 .............

(in thousands, except per unit amounts)

$

71,370

$

39,816

$ 1,267

$112,453

$

70,638

69,174

67,671

60,486

58,793

57,332

54,442

48,238

39,125

37,744

36,342

29,840

28,358

26,987

24,262

19,816

1,251

1,219

1,186

1,040

1,008

976

911

830

111,014

108,137

105,199

91,366

88,159

85,295

79,615

68,884

0.9750

0.9650

0.9450

0.9250

0.8350

0.8150

0.7950

0.7550

0.7050

As a result of the TEP Merger, Tallgrass Equity and its wholly-owned subsidiary, Tallgrass Equity Investments, LLC, will 

receive all distributions paid by TEP for the second quarter of 2018 and subsequent periods.

120

 
 
 
 
 
 
Exchange Rights

Our current Class B shareholders (collectively, the "Exchange Right Holders") own an equal number of Tallgrass Equity 

units. The Exchange Right Holders, and any permitted transferees of their Tallgrass Equity units, each have the right to 
exchange all or a portion of their Tallgrass Equity units for Class A shares at an exchange ratio of one Class A share for each 
Tallgrass Equity unit exchanged, which we refer to as the Exchange Right. The Exchange Right may be exercised only if, 
simultaneously therewith, an equal number of our Class B shares are transferred by the exercising party to us. Upon such 
exchange, we will cancel the Class B shares received from the exercising party. During the year ended December 31, 2018, 
2,821,332 Class A shares were issued and an equal number of Class B shares were cancelled as a result of the exercise of the 
Exchange Right. As of February 8, 2019, the Exchange Right Holders primarily consist of Kelso & Company and its affiliated 
investment funds ("Kelso"), The Energy & Minerals Group and its affiliated investment funds ("EMG"), and Tallgrass KC, 
LLC ("Tallgrass KC"), which is an entity owned primarily by certain members of TGE's management.

As discussed in Note 22 – Subsequent Events, on January 31, 2018, we announced that affiliates of Blackstone 

Infrastructure Partners (collectively, "BIP") had entered into a definitive purchase agreement with Kelso, EMG, and Tallgrass 
KC (collectively, the "Sellers"), pursuant to which BIP will acquire from the Sellers 100% of the membership interests in our 
general partner and an approximately 44% economic interest in us (the "Blackstone Acquisition"). One or more affiliates of 
GIC Special Investment Pte. Ltd., the infrastructure and private equity arm of GIC Pte. Ltd., Singapore's sovereign wealth fund, 
will be a minority investor in the Blackstone Acquisition. Following consummation of the Blackstone Acquisition, the 
Exchange Rights Holders are expected to consist of BIP and certain members of TGE's management.

Equity Distribution Agreements

Neither TGE or TEP currently have equity distribution agreements in place. TEP was previously a party to equity distribution 
agreements pursuant to which it sold from time to time through a group of managers, as its sales agents, TEP common units 
representing limited partner interests. Following the TEP Merger, these agreements were terminated effective July 2, 2018. During 
the year ended December 31, 2018, TEP did not issue any common units under its equity distribution agreements.

During the year ended December 31, 2017, TEP issued and sold 2,341,061 common units with a weighted average sales 
price of $48.82 per unit under its equity distribution agreement for net cash proceeds of approximately $112.4 million (net of 
approximately $1.9 million in commissions and professional service expenses). TEP used the net cash proceeds for general 
partnership purposes as described above.

During the year ended December 31, 2016, TEP issued and sold 7,696,708 common units with a weighted average sales 

price of $44.46 per unit under its equity distribution agreements for net cash proceeds of approximately $337.7 million (net of 
approximately $4.5 million in commissions and professional service expenses). TEP used the net cash proceeds for general 
partnership purposes as described above. 

Repurchase of TEP Common Units Owned by TD

Following an offer received from TD with respect to TEP common units owned by TD not subject to the call option, TEP 

repurchased 736,262 TEP common units from TD at an aggregate price of approximately $35.3 million, or $47.99 per common 
unit, on February 1, 2017, which was approved by the conflicts committee of the board of directors of TEP's general partner. 
These common units were deemed canceled upon TEP's purchase and as of such transaction date were no longer issued and 
outstanding.

Secondary Offering

On November 17, 2016, TGE entered into an Underwriting Agreement (the "Underwriting Agreement"), by and among 
TGE and certain selling shareholders named in the Underwriting Agreement (the "Selling Shareholders"), on one hand, and 
Goldman, Sachs & Co., as the sole underwriter (the "Underwriter"), on the other hand, providing for the offer and sale by the 
Selling Shareholders (the "Secondary Offering"), and purchase by the Underwriter, of 9,000,000 Class A shares at a price to the 
public of $22.00 per share. Pursuant to the Underwriting Agreement, the Selling Shareholders also granted the Underwriter an 
option for a period of 30 days to purchase up to an additional 1,350,000 Class A shares, on the same terms, which the 
Underwriter exercised in full.

121

In connection with the Secondary Offering, Class A shares were issued to the Selling Shareholders upon the exercise by 
each Selling Shareholder of its right to exchange all or a portion of its Tallgrass Equity units into Class A shares at an exchange 
ratio of one Class A share for each Tallgrass Equity unit exchanged (the "Exchange Right"). Pursuant to the terms of the 
Exchange Right, simultaneously therewith, the exercising Selling Shareholder transferred to TGE Class B shares in an amount 
equal to the number of Tallgrass Equity units exchanged by such exercising Selling Shareholder. Upon each such exchange, 
TGE cancelled the Class B shares received from the exercising Selling Shareholder. Immediately prior to the Secondary 
Offering, we and the Exchange Right Holders owned approximately 30.35% and 69.65% of the Tallgrass Equity units, 
respectively. At the completion of the Secondary Offering, we and the Exchange Right Holders owned 36.94% and 63.06% of 
the Tallgrass Equity units, respectively. 

Private Placement

On April 28, 2016, TEP issued an aggregate of 2,416,987 common units for net cash proceeds of $90 million in a private 
placement transaction to certain funds managed by Tortoise Capital Advisors, L.L.C. The units were subsequently registered 
pursuant to our Form S-3/A (File No. 333-210976) filed with the SEC on May 6, 2016, which became effective May 17, 2016.

Noncontrolling Interests

As of December 31, 2018, noncontrolling interests in our subsidiaries consisted of a 44.21% interest in Tallgrass Equity 

held by the Exchange Right Holders, an approximate 40% membership interest in Deeprock Development, and a 37% 
membership interest in BNN Colorado. During the year ended December 31, 2018, we recognized contributions from and 
distributions to noncontrolling interests of $1.8 million and $327.6 million, respectively. Contributions from noncontrolling 
interests consisted primarily of contributions from DER to Deeprock Development. Distributions to noncontrolling interests 
consisted of Tallgrass Equity distributions to the Exchange Right Holders of $223.7 million, distributions to TEP unitholders of 
$97.7 million, and distributions to Deeprock Development and Pony Express noncontrolling interests of $6.2 million. 

During the year ended December 31, 2017, we recognized contributions from and made distributions to noncontrolling 
interests of $1.6 million and $317.1 million, respectively. Contributions from noncontrolling interests consisted primarily of 
contributions from TD to Pony Express. Distributions to noncontrolling interests consisted of distributions to TEP unitholders 
of $185.7 million, Tallgrass Equity distributions to the Exchange Right Holders of $125.2 million, and distributions to Pony 
Express and Deeprock Development noncontrolling interests of $6.2 million. 

During the year ended December 31, 2016, we recognized contributions from and made distributions to noncontrolling 
interests of $9.3 million and $249.1 million, respectively. Contributions from noncontrolling interests consisted primarily of 
contributions from TD to Pony Express. Distributions to noncontrolling interests consisted of distributions to TEP unitholders 
of $145.1 million, Tallgrass Equity distributions to the Exchange Right Holders of $97.5 million, and distributions to Pony 
Express and Water Solutions noncontrolling interests of $6.5 million. 

Other Contributions and Distributions

During the year ended December 31, 2018, TGE recognized the following other contributions and distributions:

•  TGE was deemed to have made a noncash capital distribution of $198.0 million, which represents the excess purchase 
price over the $53.8 million carrying value of the 5,619,218 TEP common units acquired as of February 7, 2018;

•  TGE was deemed to have received a noncash capital contribution of $108.5 million, which represents the excess 

carrying value of the 25.01% membership interest in Rockies Express acquired as of February 7, 2018 over the fair 
value of the consideration paid; and

•  TEP was deemed to have made a noncash capital distribution of $16.2 million, which represents the excess purchase 
price over the $33.8 million carrying value of the additional 2% membership interest in Pony Express acquired as of 
February 1, 2018.

During the year ended December 31, 2017, TGE recognized the following other contributions and distributions:

•  TEP was deemed to have made a noncash capital distribution of $57.7 million, which represents the excess purchase 

price over the $82.3 million carrying value of the Terminals and NatGas net assets acquired January 1, 2017;

•  TEP was deemed to have received a noncash capital contribution of $63.7 million, which represents the excess 

carrying value of the additional 24.99% membership interest in Rockies Express acquired March 31, 2017 over the 
fair value of the consideration paid; and

•  TEP received contributions from TD of $2.3 million primarily to indemnify TEP for costs associated with Trailblazer's 

Pipeline Integrity Management Program, as discussed in Note 19 – Legal and Environmental Matters.

122

During the year ended December 31, 2016, TGE recognized the following other contributions and distributions:

•  TEP was deemed to have made noncash capital distributions of $280.0 million, which represent the excess purchase 
price over the $417.7 million carrying value of the additional 31.3% membership interest in Pony Express acquired 
effective January 1, 2016, partially offset by the 6,518,000 TEP common units (valued at approximately $268.6 
million based on the December 31, 2015 closing price of our common units) issued to TD;

•  TEP received contributions from TD of $17.9 million primarily to indemnify TEP for costs associated with 

Trailblazer's Pipeline Integrity Management Program, as discussed above. 

•  TGE distributed the remaining $1.6 million in remaining proceeds from the TGE IPO to the Exchange Right Holders 

that had been retained for short-term working capital needs.

12.  Revenue from Contracts with Customers 

As discussed in Note 2 – Summary of Significant Accounting Policies, we adopted the guidance in ASC Topic 606 effective 

January 1, 2018 using the modified retrospective method of adoption. As a result, revenue reported for the years ended 
December 31, 2017 and 2016 have not been revised. The following tables provide the impact of ASC Topic 606 on our 
consolidated balance sheet as of December 31, 2018 and the consolidated statements of income for the year ended December 
31, 2018:

Unconsolidated investments ............................................................. $

1,861,686

$

1,773,849

$

87,837 (1)

As currently
reported

December 31, 2018
Under
previous
guidance

(in thousands)

Impact of
ASC Topic
606

Year Ended December 31, 2018

As currently
reported

Under
previous
guidance

(in thousands)

Impact of
ASC Topic
606

Crude oil transportation services ...................................................... $
Sales of natural gas, NGLs, and crude oil ........................................ $
Processing and other revenues.......................................................... $
Cost of sales...................................................................................... $
Equity in earnings of unconsolidated investments ........................... $
Net income attributable to TGE........................................................ $
Basic net income per Class A share .................................................. $
Diluted net income per Class A share ............................................... $

398,334

168,586

99,445

114,815

306,819

137,127

1.27
1.27

$

$

$

$

$

$

$
$

398,329

173,055

104,117

123,458

261,848

121,402

1.13
1.13

$

$

$

$

$

$

$
$

5 (2)
(4,469) (3)
(4,672) (1)(3)
(8,643) (2)(3)
44,971 (1)
15,725

0.14
0.14

(1)  Reflects the impact on our investment in Rockies Express and the management fee collected by NatGas of the 

cumulative effect adjustment at Rockies Express, which arose as a result of the allocation of the transaction price to a 
series of individual performance obligations in certain long-term transportation contracts with rates that vary 
throughout the term of the contract. The adjustment increases the carrying amount of our investment in Rockies 
Express to reflect increased equity in earnings and establishes a receivable for the increased management fee revenue 
that would have been earned by NatGas.

(2)  Reflects the impact to revenue and cost of sales to value PLA barrels collected under certain crude oil transportation 
arrangements at their contract inception fair value in revenue and record an associated lower of cost or net realizable 
value adjustment in cost of sales.

(3)  Reflects the reclassification of certain gathering and processing fees collected under arrangements determined to be 
supply arrangements, rather than customer arrangements under ASC 606, to cost of sales and the reclassification of 
certain commodities retained as consideration for processing services to processing fee revenue.

123

 
Disaggregated Revenue

A summary of our revenue by line of business is as follows:

Year Ended December 31, 2018

Natural Gas
Transportation
segment

Crude Oil
Transportation
segment

Gathering,
Processing, &
Terminalling
segment
(in thousands)

Corporate
and Other

Total
Revenue

Crude oil transportation - committed
shipper revenue ....................................... $
Natural gas transportation - firm service.
Water business services...........................
Natural gas gathering & processing fees.
All other (1)...............................................
Total service revenue..........................
Natural gas liquids sales..........................
Natural gas sales......................................
Crude oil sales .........................................
Total commodity sales revenue ..........
Total revenue from contracts with
customers.......................................
Other revenue (2) ......................................

— $

392,276

$

128,041

—

—

11,223

139,264

—

1,195

—

1,195

—

—

—

45,888

438,164

—

—

6,290

6,290

140,459

444,454

—

—

— $

—

52,333

24,109

18,444

94,886

101,382

29,558

652

131,592

226,478

53,187

Total revenue (3).............................. $

140,459

$

444,454

$

279,665

$

— $

392,276

(4,585)
—

—
(53,950)
(58,535)
—

—

—

—

123,456

52,333

24,109

21,605

613,779

101,382

30,753

6,942

139,077

(58,535)
(12,784)
(71,319) $

752,856

40,403

793,259

(1) 

(2) 

Includes revenue from crude oil transportation walk up shippers, crude oil terminal services, interruptible natural gas 
transportation and storage, and natural gas park and loan service.

Includes lease and derivative revenue not subject to ASC 606.

(3)  Excludes $930.8 million of revenue recognized at Rockies Express, BNN Colorado, and Pawnee Terminal for the year 

ended December 31, 2018. See Note 7 – Investments in Unconsolidated Affiliates for additional information.

Performance Obligations

A performance obligation is a promise in a contract to transfer a distinct good or service to the customer, and is the unit of 
account in ASC Topic 606. A contract's transaction price is allocated to each distinct performance obligation and recognized as 
revenue when, or as, the performance obligation is satisfied. The majority of our contracts have a single performance obligation 
and are billed and collected monthly.

All of our segments engage in commodity sales, in which our performance obligations include an obligation to deliver the 

specified volume of a commodity to the designated receipt point. Revenue from commodity sales is recognized at a point in 
time when the customer obtains control of the commodity, typically upon delivery to the designated delivery point when the 
customer accepts and takes possession of the commodity.

In the Natural Gas Transportation segment, our performance obligations typically include an obligation to stand ready to 

provide natural gas transportation, storage, or an integrated transportation and storage service over the life of the contract, 
which is a series. These performance obligations are satisfied over time using each day of service to measure progress toward 
satisfaction of the performance obligation.

In the Crude Oil Transportation segment, our performance obligations typically include an obligation to provide crude oil 

transportation services over the life of the contract, which is a series. These performance obligations are satisfied over time 
using barrels delivered to measure progress toward satisfaction of the performance obligation.

In the Gathering, Processing & Terminalling segment, the performance obligations vary based on the operating asset and 

type of contract. In our natural gas gathering and processing arrangements, performance obligations typically include an 
obligation to provide an integrated processing service over the life of the contract, which is a series. These performance 
obligations are satisfied over time using each unit of gas processed to measure progress toward satisfaction of the performance 

124

 
 
obligation. In our freshwater supply arrangements, performance obligations typically include an obligation to deliver a 
specified volume of water to the designated receipt point. These performance obligations are satisfied at a point in time when 
the customer obtains control of the water. In our produced water gathering and disposal arrangements, performance obligations 
typically include an obligation to provide an integrated produced water gathering and disposal service over the life of the 
contract, which is a series. These performance obligations are satisfied over time using barrels disposed to measure progress 
toward satisfaction of the performance obligation.

On December 31, 2018, we had $1.6 billion of remaining performance obligations at our consolidated subsidiaries, which 
we refer to as total backlog. Total backlog includes performance obligations under long-term crude oil transportation contracts 
with committed shippers, natural gas firm transportation and firm storage contracts, and certain water business service contracts 
with minimum volume commitments, and excludes variable consideration that is not estimated at contract inception, as 
discussed further below. We expect to recognize the total backlog during future periods as follows (in thousands):

Year
2019...................................................................................................................................................
2020...................................................................................................................................................
2021...................................................................................................................................................
2022...................................................................................................................................................
2023...................................................................................................................................................
Thereafter ..........................................................................................................................................
Total..............................................................................................................................................

$

$

Estimated Revenue

532,549

357,226

170,713

163,852

140,101

210,625

1,575,066

Contract Estimates

Accounting for long-term contracts involves the use of various techniques to estimate total contract revenue. Contract 

estimates are based on various assumptions to project the outcome of future events that often span several years. These 
assumptions include the anticipated volumes of crude oil expected to be delivered by our customers for transport in future 
periods. 

The nature of our contracts gives rise to several types of variable consideration, including PLA, volumetric charges for 
actual volumes delivered, overrun charges, and other fees that are contingent on the actual volumes delivered by our customers. 
As the amount of variable consideration is allocable to each distinct performance obligation within the series of performance 
obligations that comprise the single performance obligation and the uncertainty related to the consideration is resolved each 
month as the distinct service is provided, we do not estimate the total variable consideration for the single overall performance 
obligation. Consequently, we are able to include in the transaction price each month the actual amount of variable consideration 
because no uncertainty exists surrounding the services provided that month.

Certain of our contracts include provisions in which a portion of the consideration is noncash. In our Crude Oil 

Transportation segment, we collect PLA from our customers. As crude oil is transported, we earn, and take title to, a portion of 
the oil transported for our services. Any PLA that remains after replacing losses in transit can be sold. Where PLA is 
determined to be a component of compensation for the transportation services provided, crude oil retained is recognized in 
revenue at its contract inception fair value. In our Gathering, Processing & Terminalling segment, we retain commodity 
products as consideration under certain of our gathering and processing arrangements. Processing fee revenue is recorded when 
the performance obligation is completed based on the value of the product received at the time services are performed. At this 
time, the variability of the non-cash consideration related to both form (price) and other-than-form (volume and product mix), 
which are interrelated, is resolved. 

As a significant change in one or more of these estimates could affect the amount and timing of revenue recognized under 

our customer contracts, we review and update our contract-related estimates regularly. 

Contract Balances

The timing of revenue recognition, billings, and cash collections may result in billed accounts receivable, unbilled 
receivables (contract assets), and deferred revenue (contract liabilities) on our consolidated balance sheets. Revenue is 
generally billed and collected monthly based on services provided or commodity volumes sold. In our Crude Oil Transportation 
segment, we recognize shipper deficiencies, or deferred revenue, for barrels committed by the customer to be transported in a 
month but not physically received by us for transport or delivered to the customers' agreed upon destination point. These 
shipper deficiencies are charged at the committed tariff rate per barrel and recorded as a contract liability until the barrels are 
physically transported and delivered, or when the likelihood that the customer will utilize the deficiency balance becomes 

125

remote. We also recognize contract liabilities, in the form of deferred revenue, under certain water business services contracts 
in the Gathering, Processing & Terminalling segment. Contract balances as of December 31, 2018 were as follows:

Accounts receivable from contracts with customers ................................... $
Other accounts receivable............................................................................
Receivable from related parties ...................................................................

Accounts receivable, net......................................................................... $

Deferred revenue from contracts with customers (1) .................................... $

December 31, 2018

January 1, 2018

(in thousands)

80,935

$

151,414

3,748

236,097

111,095

$

$

61,888

56,727

1,340

119,955

88,471

(1)  Revenue recognized during the year ended December 31, 2018 that was included in the deferred revenue balance at 

the beginning of the period was $12.0 million. This revenue primarily represented the utilization of shipper 
deficiencies at Pony Express.

13.  Commitments & Contingent Liabilities 

Leases and Right of Way Agreements

Rent expense under operating leases and right of way agreements totaled approximately $1.4 million, $9.5 million, and 

$16.5 million for the years ended December 31, 2018, 2017, and 2016, respectively.

At December 31, 2018, future minimum rental commitments under major, non-cancelable leases and right of way 

("ROW") agreements were as follows (in thousands):

Year
2019.......................................................................................................................

2020.......................................................................................................................

2021.......................................................................................................................

2022.......................................................................................................................

2023.......................................................................................................................

Thereafter ..............................................................................................................

Total.......................................................................................................................

Operating Lease 
and ROW 
Obligations

Capital Lease 
Obligations

$

$

1,818

1,757

1,056

796

679

3,153

9,259

$

$

449

449

449

449

449

17,770

20,015

Operating leases consist of leases for office space and equipment. Prior to the acquisition of a controlling interest in 
Deeprock Development in July 2017, as discussed in Note 3 - Acquisitions and Dispositions, rent expense included payments 
made by Pony Express to Deeprock Development for the use by Pony Express of storage capacity at the Deeprock tank storage 
facility near Cushing, Oklahoma. Capital lease obligations consist of the PLT land site lease, as discussed in Note 3 -
 Acquisitions and Dispositions. The PLT land site lease includes a bargain purchase option exercisable after the initial lease 
term. PLT satisfied the capital lease obligation of $30.7 million at lease inception, and as a result has no imputed interest on the 
future minimum rental commitments in the table above. These future commitments represent certain administrative fees and 
estimated payments to the Plaquemines Port & Harbor Terminal District which approximate the ad valorem taxes that would be 
assessed if PLT acquired the land directly.

Capital Expenditures

We had committed approximately $39.6 million for the future purchase of property, plant and equipment at December 31, 

2018. 

126

 
 
Other Purchase Obligations

At December 31, 2018, future minimum commitments under long-term, non-cancelable contracts for other purchase 

obligations were as follows (in thousands):

Year
2019......................................................................................

$

2020......................................................................................

2021......................................................................................

2022......................................................................................

2023......................................................................................

Thereafter .............................................................................

Total......................................................................................

$

Total

13,467

11,198

6,677

5,604

5,614

13,231

55,791

14.  Net Income per Class A Share 

Basic net income per Class A share is determined by dividing net income attributable to TGE by the weighted average 
number of outstanding Class A shares during the period. Class B shares do not share in the earnings of TGE. Accordingly, basic 
and diluted net income per Class B share has not been presented.

Diluted net income per Class A share is determined by dividing net income attributable to TGE by the weighted average 

number of outstanding diluted Class A shares during the period. For purposes of calculating diluted net income per Class A 
share, we considered the impact of possible future exercises of the Exchange Right by the Exchange Right Holders on both net 
income attributable to TGE and the diluted weighted average number of Class A shares outstanding. The Exchange Right 
Holders refers to the group of persons who collectively own all TGE's outstanding Class B shares and an equivalent number of 
Tallgrass Equity units. The Exchange Right Holders are entitled to exercise the right to exchange their Tallgrass Equity units 
(together with an equivalent number of TGE Class B shares) for TGE Class A shares at an exchange ratio of one TGE Class A 
share for each Tallgrass Equity unit exchanged, which we refer to as the Exchange Right. As of February 8, 2019, the Exchange 
Right Holders primarily consist of Kelso, EMG and Tallgrass KC. Following consummation of the Blackstone Acquisition, the 
Exchange Right Holders will primarily consist of BIP and certain members of TGE's management.

 Pursuant to the TGE partnership agreement and the Tallgrass Equity limited liability company agreement, our capital 
structure and the capital structure of Tallgrass Equity will generally replicate one another in order to maintain the one-for-one 
exchange ratio between the Tallgrass Equity units and Class B shares, on the one hand, and our Class A shares, on the other 
hand. As a result, the exchange of any Class B shares for Class A shares does not have a dilutive effect on basic net income per 
Class A share. However, for the years ended December 31, 2018 and 2016, the potential issuance of TGE Equity Participation 
Shares would have had a dilutive effect on basic net income per Class A share. The potential issuance of TGE Equity 
Participation Shares would not have had a dilutive effect on the basic net loss per Class A share for the year ended December 
31, 2017.

All net income or loss from Terminals and NatGas prior to TEP's acquisition on January 1, 2017 is allocated to predecessor 

operations in the consolidated statements of income. Accordingly, no net income or loss from Terminals and NatGas is 
allocated to our Class A shareholders. We present the financial results of any transferred business prior to the transaction date in 
the line item "Predecessor operations interest in net income" in the consolidated statements of income.

127

The following table illustrates the calculation of net income per Class A share for the years ended December 31, 2018, 

2017, and 2016:

Basic Net Income per Class A Share:
Net income (loss) attributable to TGE, excluding predecessor
operations interest ..................................................................................... $
Basic weighted average Class A Shares outstanding ................................
Basic net income (loss) per Class A share................................................. $
Diluted Net Income per Class A Share:
Net income (loss) attributable to TGE, excluding predecessor
operations interest ..................................................................................... $
Incremental net income attributable to TGE including the effect of
the assumed issuance of Equity Participation Shares...........................
Net income (loss) attributable to TGE including incremental net income
from assumed issuance of Equity Participation Shares ............................ $
Basic weighted average Class A Shares outstanding ................................

Equity Participation Shares equivalent shares .....................................

Diluted weighted average Class A Shares outstanding .............................
Diluted net income (loss) per Class A Share............................................. $

15.  Major Customers and Concentration of Credit Risk 

Year Ended December 31,

2018

2017
(in thousands, except per unit amounts)

2016

137,127

107,586

1.27

$

$

(128,729) $
58,076

(2.22) $

26,794

48,856

0.55

137,127

$

(128,729) $

26,794

2,108

—

139,235

$

107,586

2,231

109,817

(128,729) $
58,076

—

58,076

1.27

$

(2.22) $

9

26,803

48,856

33

48,889

0.55

During the years ended December 31, 2018 and 2017, one non-affiliated customer, Continental Resources, Inc. 
("Continental Resources"), accounted for $81.9 million (10%) and $100.2 million (15%), of our total operating revenues, 
respectively. During the year ended December 31, 2016, two non-affiliated customers, Continental Resources and Shell Trading 
(US) Company ("Shell"), accounted for $97.8 million (16%) and $76.2 million (12%) of our total operating revenues, 
respectively. Revenues from Continental Resources for the year ended December 31, 2018 were earned in our Crude Oil 
Transportation and Gathering, Processing & Terminalling segments. Revenues from Continental Resources for the years ended 
December 31, 2017 and 2016 were earned in our Crude Oil Transportation segment. Revenues from Shell for the year ended 
December 31, 2016 were earned in our Natural Gas Transportation, Crude Oil Transportation, and Gathering, Processing & 
Terminalling segments.

For the year ended December 31, 2018, the percentage of segment revenues from the top ten non-affiliated customers for 

each segment was as follows:

Natural Gas Transportation ...............................................

Crude Oil Transportation ..................................................

Gathering, Processing & Terminalling..............................

58%

84%

60%

Percentage of 
Segment Revenue

We attempt to mitigate credit risk by seeking credit support, such as letters of credit, prepayments or other financial 

guarantees from customers with specific credit concerns.

16.  Equity-Based Compensation 

Long-term Incentive Plan

We have two long-term incentive plans. The Tallgrass Energy GP, LLC Long-Term Incentive Plan (f/k/a the TEGP 

Management, LLC Long-Term Incentive Plan), was originally adopted by our general partner effective as of May 1, 2015, and 
was amended and restated effective August 2, 2018 (as amended, the "TGE LTIP"). In addition, the Tallgrass MLP GP, LLC 
Long-Term Incentive Plan was originally adopted by TEP GP effective as of May 13, 2013, and was amended and restated 
effective August 2, 2018 (as amended, the "Legacy LTIP" and together with the TGE LTIP, the "Plans"). In connection with the 
completion of the TEP Merger effective June 30, 2018, the Legacy LTIP was assumed by our general partner. 

128

 
Awards under the Plans may consist of, among others, unrestricted shares, restricted shares, equity participation shares, 
options and share appreciation rights which may be granted to (i) the employees of our general partner and its affiliates who 
perform services for us, (ii) the non-employee directors of our general partner and (iii) the consultants who perform services for 
us. The TGE LTIP limits the number of shares that may be delivered pursuant to awards to 3,144,589 Class A shares, and the 
Legacy LTIP limits the number of shares that may be delivered pursuant to awards under such plan to 20,000,000 Class A 
shares, subject in each case to any adjustment due to recapitalization, reorganization or a similar event permitted under the 
applicable Plan. Shares that are forfeited or withheld to satisfy exercise price or tax withholding obligations are available for 
delivery pursuant to other awards under the applicable Plan. The Plans are administered by the board of directors of our general 
partner or a committee thereof, which is referred to as the plan administrator. 

Equity Participation Shares

Vesting of the Equity Participation Shares granted to date is contingent on certain service and performance conditions. The 

Equity Participation Shares are non-participating; as such participants are not entitled to receive any dividends with respect to 
the Equity Participation Shares unless the participant receives a separate grant of Distribution Equivalent Rights. At this time, 
no grants of Distribution Equivalent Rights have been made.

The Equity Participation Share grants under the Plans are measured at their grant date fair value. The Equity Participation 

Shares are non-participating; therefore, the grant date fair value is discounted from the grant date fair value of TGE's Class A 
shares for the present value of the expected future dividends during the vesting period. Effective June 30, 2018 with the 
completion of the TEP Merger, as discussed in Note 1 – Description of Business, TEP's outstanding Equity Participation Units 
were converted to Equity Participation Shares at a ratio of 2.0 Equity Participation Shares for each outstanding TEP Equity 
Participation Unit. Total equity-based compensation cost related to the Equity Participation Share grants was approximately 
$7.6 million, $1.6 million, and $1.4 million for the years ended December 31, 2018, 2017, and 2016 respectively, excluding 
costs associated with TEP's Equity Participation Units prior to the TEP Merger. Of the total compensation cost, $7.6 million, 
$0.2 million, and $0.2 million for the years ended December 31, 2018, 2017, and 2016 respectively, were recognized as 
compensation expense at TGE and the remainder was allocated to TEP and TD. As of December 31, 2018, $34.3 million of 
total compensation cost related to non-vested Equity Participation Shares is expected to be recognized over a weighted-average 
period of 3.2 years. 

The following table summarizes the changes in the Equity Participation Shares outstanding for the years ended December 

31, 2018, 2017 and 2016:

Equity
Participation
Shares

Weighted Average
Grant Date Fair
Value

Outstanding at January 1, 2016 .........................................................................
Granted .........................................................................................................

Outstanding at December 31, 2016 ...................................................................
Granted .........................................................................................................

Vested............................................................................................................

Outstanding at December 31, 2017 ...................................................................

Granted .........................................................................................................
Converted (1)..................................................................................................
Vested............................................................................................................

Forfeited........................................................................................................

Outstanding at December 31, 2018 ...................................................................

160,000

$

45,000

205,000

30,000
(10,002)
224,998

1,138,200

1,786,310
(20,664)
(79,200)
3,049,644

$

27.97

18.22

25.83

23.66
(14.26)
25.91

17.01

18.20
(19.19)
(20.62)
18.25

(1)  Reflects TEP's outstanding Equity Participation Units that were converted to Equity Participation Shares at a ratio of 
2.0 Equity Participation Shares for each outstanding TEP Equity Participation Unit upon completion of the TEP 
Merger as discussed above.

129

17.  Income Taxes 

Income tax expense is estimated using the tax rate in effect or to be in effect during the relevant periods in the jurisdictions 

in which we operate. Deferred income tax assets and liabilities are recognized for temporary differences between the basis of 
assets and liabilities for financial reporting and tax purposes and are stated at enacted tax rates expected to be in effect when 
taxes are actually paid or recovered. To the extent we do not consider it more likely than not that a deferred tax asset will be 
recovered, a valuation allowance is established. We record a valuation allowance to reduce our deferred tax assets to the 
amount we believe is more likely than not to be realized. In making these determinations we consider historical and projected 
taxable income, and ongoing prudent and feasible tax planning strategies, in assessing the appropriateness of a valuation 
allowance. Changes in tax legislation are included in the relevant computations in the period in which such changes are 
effective.

U.S. Federal and State Taxes

Although we are organized as a limited partnership, we have elected to be treated as a corporation for U.S. federal income 
tax purposes and are therefore subject to both U.S. federal and state income taxes. We are projecting a loss for both U.S. federal 
and state income taxes for the tax year ended December 31, 2018. As a result, there is no current provision for income taxes for 
the year ended December 31, 2018.

Tax Components

Components of the deferred income tax expense are as follows:

Year Ended December 31,

2018

2017
(in thousands)

2016

Deferred income tax expense:

Federal income tax ....................................................................... $
State income tax ...........................................................................
Total deferred income tax expense.................................................... $

41,585

14,124

55,709

$

$

200,787

7,671

208,458

$

$

15,587

2,154

17,741

The difference between tax expense based on the statuary federal income tax rate and our effective tax expense is 

summarized as follows: 

Net income before tax ....................................................................... $
Less: Predecessor operations interest in net income ....................
Net income before tax, excluding predecessor operations interest ...
Less: Net income attributable to noncontrolling interests............
Net income subject to tax.................................................................. $
Federal statutory income tax rate ......................................................
Income tax at statutory rate ............................................................... $
State income taxes, net of federal benefit .........................................
Change in state tax rate .....................................................................
Other..................................................................................................
Valuation allowance ..........................................................................
Total income tax expense before change in tax legislation............... $
Impact of federal tax legislation on deferred tax asset......................
Impact of federal tax legislation on valuation allowance..................
Total income tax expense.................................................................. $
Effective tax rate ...............................................................................

130

Year Ended December 31,

2018

2017
(in thousands)

523,380

$

432,443

$

—

523,380
(330,544)
192,836

21%

40,496

5,419

8,705

1,089

—

$

$

—

432,443
(352,714)
79,729

35%

27,905

2,392

1,353

—

3,926

$

$

2016

267,780
(6,995)
260,785
(216,250)
44,535

35%

15,587

1,592

562

—

—

55,709

$

35,576

$

17,741

—

—

172,037

845

—

—

55,709

$

208,458

$

17,741

10.6%

48.2%

6.8%

Deferred tax assets result from the following:

December 31, 2018 December 31, 2017
(in thousands)

Deferred tax assets:

Investment in partnerships............................................................................ $
Net operating losses......................................................................................
Deferred tax assets before valuation allowance ................................................ $
Valuation allowance......................................................................................
Total deferred tax assets .................................................................................... $

198,290

80,012

278,302
(4,771)
273,531

$

$

$

269,136

48,632

317,768
(4,771)
312,997

Deferred tax liability: ........................................................................................

Equity earnings adjustment pursuant to ASC 606 ........................................ $

817

$

—

On May 12, 2015, as a result of the transfer of the ownership interest in Tallgrass Equity as part of the Reorganization 

Transactions in connection with the TGE IPO, we recognized a deferred tax asset of $445.2 million. In November 2016, we 
completed the Secondary Offering as discussed in Note 11 – Partnership Equity. In connection with the resulting transfer of 
Tallgrass Equity Units, we recognized an additional deferred tax asset of $86.8 million. During 2018, a portion of the Exchange 
Right Holders exercised their Exchange Right as discussed in Note 11 – Partnership Equity. In connection with the resulting 
transfer of Tallgrass Equity Units, we recognized an additional deferred tax asset of $15.4 million. These transfers of ownership 
were accounted for at the historical carrying basis for GAAP accounting purposes, but recorded at the value of the 
consideration paid for U.S. federal income tax purposes. The tax rates that apply when the deferred tax balances ultimately 
reverse are inherent in the realization of the deferred tax balances. State tax rates can change from year to year based upon 
changes in both state apportionment percentages and state tax laws.

As of December 31, 2018, we had a federal net operating loss carry forward of $328.2 million and various state net 

operating loss carry forwards. The determination of the state net operating loss carry forwards is dependent upon apportionment 
percentages and state laws that can change from year to year and impact the amount of such carry forwards. If not utilized, the 
federal net operating loss carry forward will expire between 2035 and 2037 and the state operating loss carry forwards will 
expire between 2025 and 2037. We believe that it is more likely than not that the benefit from certain state operating loss 
carryforwards will not be realized. In recognition of this risk, we have provided a valuation allowance on the deferred tax assets 
relating to these carryforwards.

On December 22, 2017, legislation referred to as the "Tax Cuts and Jobs Act" ("TCJA") was signed into law. Substantially 
all provisions of the TCJA are effective for taxable years beginning after December 31, 2017. The TCJA includes amendments 
to the Internal Revenue Code of 1986 that significantly change the taxation of individuals and business entities. Pursuant to 
ASC Topic 740, Income Taxes (ASC 740), we recognized the tax effect of the TCJA changes during the year ended December 
31, 2017, the period in which the law was enacted. ASC 740 requires deferred tax assets and liabilities to be measured at the 
enacted tax rate expected to apply when temporary differences are to be realized or settled. Accordingly, we remeasured our 
deferred tax asset based on the new tax rates, resulting in an increase to our tax provision of $172.9 million for the year ended 
December 31, 2017.

The 2015 through 2018 tax years are open to examination for federal and state tax.

18.  Regulatory Matters 

There are no regulatory proceedings challenging the rates of Pony Express, Rockies Express, or TIGT. On June 29, 2018, 
Trailblazer Pipeline Company LLC ("Trailblazer") filed a general rate case with the FERC pursuant to Section 4 of the Natural 
Gas Act ("NGA"), as further described below. We have also made certain regulatory filings with the FERC, including the 
following:

Rockies Express

Petition for Declaratory Order – FERC Docket No. RP13-969-000 

In June 2013, in Docket No. RP13-969-000, Rockies Express filed with the FERC a Petition for Declaratory Order which 
sought a ruling that the "most favored nations" or "MFN" provisions contained in Rockies Express' negotiated rate agreements 
("NRAs") with its Foundation and Anchor Shippers would not prevent Rockies Express from providing firm transportation 
service at rates lower than Foundation and Anchor Shippers' rates that (1) have an east-to-west primary path; (2) are for a term 
of one year or longer; and (3) are limited to service in one rate zone and therefore do not utilize all of the same facilities or rate 

131

zones as the service provided pursuant to the Foundation and Anchor Shipper NRAs. In November 2013, the FERC issued a 
declaratory order finding that the potential transactions would not trigger the MFN rights of Rockies Express' Foundation and 
Anchor Shippers. Various parties filed requests for rehearing of the FERC's declaratory order. 

In September 2014 and December 2015, the FERC accepted amended contracts with the shippers holding MFN rights on 
Rockies Express, which reflect the terms of settlements between these shippers and Rockies Express. The settlements provide 
additional clarity with respect to the applicability of the settling shippers' MFN rights, sharing by Rockies Express of certain 
transportation revenues, and the withdrawal of the settling shippers from the Petition for Declaratory Order proceeding. On 
September 27, 2017, FERC issued an order denying the requests for rehearing of the declaratory order issued in November 
2013, and no party sought judicial appeal of the FERC order denying rehearing within the statutory deadline. 

Seneca Lateral Facilities Conversion – FERC Docket No. CP15-102-000 

On March 2, 2015 in Docket No. CP15-102-000, Rockies Express filed with the FERC an application for (1) authorization 

to convert certain existing and operating pipeline and compression facilities located in Noble and Monroe Counties, Ohio 
(Seneca Lateral Facilities described in Docket Nos. CP13-539-000 and CP14-194-000) from Natural Gas Policy Act of 1978 
Section 311 authority to NGA Section 7 jurisdiction, and (2) issuance of a certificate of public convenience and necessity 
authorizing Rockies Express to operate and maintain the Seneca Lateral Facilities. On April 7, 2016, the FERC issued a 
Certificate to Rockies Express granting its requested authorizations and on June 1, 2016 Rockies Express commenced NGA 
service on the Seneca Lateral.

Rockies Express Zone 3 Capacity Enhancement Project – FERC Docket No. CP15-137-000

On March 31, 2015 in Docket No. CP15-137-000, Rockies Express filed with the FERC an application for authorization to 
construct and operate (1) three new mainline compressor stations located in Pickaway and Fayette Counties, Ohio and Decatur 
County, Indiana; (2) additional compressors at an existing compressor station in Muskingum County, Ohio; and (3) certain 
ancillary facilities. The facilities increased the Rockies Express Zone 3 east-to-west mainline capacity by 0.8 Bcf/d. Pursuant to 
the FERC's obligations under the National Environmental Policy Act, FERC staff issued an Environmental Assessment for the 
project on August 31, 2015. On February 25, 2016, the FERC issued a Certificate of Public Convenience and Necessity 
authorizing Rockies Express to proceed with the project. On March 14, 2016, Rockies Express commenced construction of the 
project facilities. The project was placed in-service for the full 0.8 Bcf/d on January 6, 2017. 

2016 Annual and Interim FERC Fuel Tracking Filings - FERC Docket Nos. RP16-702-000 and RP17-240-000

On March 1, 2016, Rockies Express made its annual fuel tracker filing with a proposed effective date of April 1, 2016 in 

Docket No. RP16-702-000. The FERC issued an order accepting the filing on March 25, 2016. On December 1, 2016, Rockies 
Express made an interim fuel tracker filing with a proposed effective date of January 1, 2017 in Docket No. RP17-240-000. The 
FERC issued an order accepting the filing on December 29, 2016.

Electric Power Charge Clarification - FERC Docket No. RP17-285-000

On December 21, 2016, in Docket No. RP17-285-000, Rockies Express proposed certain revisions to the General Terms 

and Conditions of its tariff to clarify that the electric power costs associated with the operation of gas coolers installed in 
association with the Zone 3 Capacity Enhancement Project at both electric and gas powered stations, will be included in the 
Power Cost Tracker. Several shippers submitted comments on the proposal. The FERC issued an order on January 19, 2017 
accepting the proposed revisions permitting the recovery of electric power costs from the operation of both gas and electric 
powered compressor stations, subject to certain clarifications.

2017 Annual and Interim FERC Fuel Tracking Filings - FERC Docket Nos. RP17-401-000 and RP17-1064-000

On February 13, 2017, in Docket No. RP17-401-000, Rockies Express made its annual fuel and power cost tracker filing 

with a proposed effective date of April 1, 2017. The FERC issued an order accepting the filing, including certain requested 
waivers, on March 21, 2017. On September 20, 2017, Rockies Express made its interim fuel tracker filing in Docket No. 
RP17-1064-000 with a proposed effective date of November 1, 2017. The FERC issued an order accepting the filing on 
October 18, 2017.

Increased Frequency of FL&U and PCT Adjustments - FERC Docket No. RP18-228-000

On December 1, 2017, in Docket No. RP18-228-000, Rockies Express made a filing with the FERC to increase the 
frequency in which it may adjust fixed fuel and lost and unaccounted for retainages and power cost tracker charges during the 
year so that its recovery of fixed fuel and lost and unaccounted for charges and power costs more closely track usage. Rockies 
Express proposed an effective date of April 1, 2018. The comment period ended on December 13, 2017, and no parties opposed 
Rockies Express' filing. On April 4, 2018, the FERC issued a letter order accepting Rockies Express' proposal, subject to 
certain modifications. Rockies Express submitted a compliance filing reflecting the approved tariff provisions and requested 

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modifications on April 10, 2018. No comments on the compliance filing were submitted by the comment deadline of April 16, 
2018. On April 18, 2018, the FERC issued an order accepting Rockies Express' compliance filing effective April 19, 2018.

2018 Annual FERC Fuel Tracking Filing - FERC Docket No. RP18-453-000

On February 20, 2018, in Docket No. RP18-453-000, Rockies Express made its annual fuel and power cost tracker filing 

with a proposed effective date of April 1, 2018. The FERC issued an order accepting the filing on March 19, 2018.

Cheyenne Hub Enhancement Project - FERC Docket No. CP18-103-000

On March 2, 2018, Rockies Express submitted an application pursuant to section 7(c) of the NGA for a certificate of public 

convenience and necessity authorizing the construction and operation of certain booster compressor units and ancillary 
facilities located at the Cheyenne Hub in Weld County, Colorado that will enable Rockies Express to provide a new hub service 
allowing for firm receipts and deliveries between Rockies Express and certain other interconnected pipelines at the Cheyenne 
Hub. Rockies Express filed this certificate application in conjunction with a concurrently filed certificate application by 
Cheyenne Connector, LLC ("Cheyenne Connector") for the Cheyenne Connector Pipeline Project further described below. The 
comment period for the Cheyenne Hub Enhancement Project closed on April 9, 2018. To date, various comments have been 
filed by market participants and others regarding the proposed project. Rockies Express has also responded to data requests 
from the FERC's relevant program offices. On October 11, 2018, the FERC issued a Notice of Schedule of Environmental 
Review setting December 18, 2018 as the date of issuance of the Environmental Assessment and March 18, 2019 as the 
deadline for decisions by other federal agencies on requests for authorizations for the proposed project. On December 18, 2018, 
the FERC issued the Environmental Assessment.

Rockies Express Form No. 501-G Filing - FERC Docket No. RP19-412-000

On December 6, 2018, Rockies Express submitted its one-time informational filing in compliance with Order No. 849, 

which required interstate natural gas pipelines to make a one-time informational filing on the rate effect of the changes in tax 
laws and policy following the Tax Cuts and Jobs Act and the FERC's changes to its Income Tax Policy Statement following the 
decision of the U.S. Court of Appeals for the D.C. Circuit in United Airlines, Inc. v. FERC in 2016. The filing remains pending 
before the FERC.

Cheyenne Connector

Cheyenne Connector Pipeline Project - FERC Docket No. CP18-102-000

On March 2, 2018, Cheyenne Connector, an indirect subsidiary of TGE, submitted an application pursuant to section 7(c) 

of the NGA for a certificate of public convenience and necessity to construct and operate a 70-mile, 36-inch pipeline to 
transport natural gas from multiple gas processing plants in Weld County, Colorado to Rockies Express' Cheyenne Hub. The 
comment period for the Cheyenne Connector Pipeline Project closed on April 9, 2018. To date, various comments have been 
filed by market participants and others regarding the proposed project. Cheyenne Connector has also responded to data requests 
from the FERC's relevant program offices. On October 11, 2018, the FERC issued a Notice of Schedule of Environmental 
Review setting December 18, 2018 as the date of issuance of the Environmental Assessment and March 18, 2019 as the 
deadline for decisions by other federal agencies on requests for authorizations for the proposed project. On December 18, 2018, 
the FERC issued the Environmental Assessment.

TIGT

General Rate Case Filing - FERC Docket No. RP16-137-000, et seq.

On October 30, 2015, in Docket No. RP16-137-000, et seq., TIGT filed a general rate case with the FERC pursuant to 
Section 4 of the NGA. The general rate case was ultimately resolved via settlement, which the FERC approved on November 2, 
2016, and a compliance filing that modernized TIGT's FERC Gas Tariff, consistent with prior FERC orders, which the FERC 
accepted on March 16, 2017. Per the terms of the settlement, TIGT is required to file a new general rate case on May 1, 2019 
(provided that such rate case is not pre-empted by a pre-filing settlement).

2017 Annual Fuel Tracker Filing - FERC Docket No. RP17-428-000

On February 27, 2017, in Docket No. RP17-428-000, TIGT made its annual fuel tracker filing with a proposed effective 
date of April 1, 2017. The filing incorporated the FL&U tracker and power cost tracker mechanisms agreed to in the TIGT Rate 
Case Settlement. The FERC accepted the filing on March 21, 2017.

Electric Power Charge Clarification - FERC Docket No. RP17-1051-000

On September 15, 2017, in Docket No. RP17-1051-000, TIGT proposed certain revisions to its tariff to clarify, amongst 
other things, that the electric power costs associated with the operation of gas coolers at both electric and gas powered stations 
are properly included in the Power Cost Tracker. The FERC issued an order on October 3, 2017 accepting the proposed 
revisions.

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2018 Annual Fuel Tracker Filing - FERC Docket No. RP18-533-000

On March 1, 2018, in Docket No. RP18-533-000, TIGT made its annual fuel tracker filing with a proposed effective date 

of April 1, 2018. The FERC accepted the filing on March 22, 2018.

TIGT Form No. 501-G Filing - FERC Docket No. RP19-423-000

On December 6, 2018, TIGT submitted its one-time informational filing in compliance with Order No. 849, which required 

interstate natural gas pipelines to make a one-time informational filing on the rate effect of the changes in tax laws and policy 
following the Tax Cuts and Jobs Act and the FERC's changes to its Income Tax Policy Statement following the decision of the 
U.S. Court of Appeals for the D.C. Circuit in United Airlines, Inc. v. FERC in 2016. On December 18, 2018, one protest and 
one set of comments were filed by intervenors in the docket. The filing remains pending before the FERC.

Trailblazer

2016 Annual Fuel Tracker Filing – FERC Docket Nos. RP16-814-000 and RP16-814-001

On April 1, 2016, Trailblazer made its annual fuel tracker filing with a proposed effective date of May 1, 2016 in Docket 

No. RP16-814-000. The FERC accepted this filing on April 18, 2016. On May 19, 2016, Trailblazer filed its refund report 
associated with the April 1, 2016 annual fuel tracker filing, which the FERC accepted on July 11, 2016. On September 7, 2016, 
Trailblazer filed an adjustment to its April 1, 2016 filing in Docket No. RP16-814-001, which the FERC accepted on October 3, 
2016. Trailblazer filed a corresponding refund report on October 14, 2016, which the FERC accepted on November 16, 2016.

2017 Annual and Interim Fuel Tracker Filings - FERC Docket Nos. RP17-549-000 and RP17-1052-000

On March 22, 2017, in Docket No. RP17-549-000, Trailblazer made its annual fuel tracker filing with a proposed effective 
date of May 1, 2017. The FERC accepted the filing on April 19, 2017. On September 15, 2017, Trailblazer made its interim fuel 
tracker filing in Docket No. RP17-1052-000 with a proposed effective date of November 1, 2017. The FERC accepted the 
filing on October 13, 2017.

2018 Annual Fuel Tracker Filing - FERC Docket No. RP18-580-000

On March 22, 2018, in Docket No. RP18-580-000, Trailblazer made its annual fuel tracker filing with a proposed effective 

date of May 1, 2018. The FERC accepted the filing on April 20, 2018.

General Rate Case Filing - FERC Docket No. RP18-922-000, et seq.

On June 29, 2018, Trailblazer filed a general rate case with the FERC, which satisfies the requirement set forth in the 

settlement resolving Trailblazer's previous general rate case that Trailblazer file a new general rate case with rates to be 
effective no later than January 1, 2019. The June 29, 2018 filing reflects an overall increase to Trailblazer's cost of service. In 
the filing, Trailblazer is proposing to maintain its existing bifurcated firm transportation service rate design as well as its 
current tracking methodologies for the treatment of Fuel and Lost and Unaccounted For ("FL&U") gas and electric power 
costs. The proposed rates include an increase in rates on Trailblazer's Existing System Firm Transportation Service. The overall 
rate increase would be partially offset by a proposed decrease in rates for Expansion System Firm Transportation Service and 
interruptible services. Trailblazer is also proposing to include a cost recovery mechanism in its tariff to recover future eligible 
costs related to system safety, integrity, reliability, environmental and cybersecurity issues. Under the NGA and the FERC's 
regulations, Trailblazer's shippers and other interested parties, including the FERC's Trial Staff, have the right to challenge any 
aspect of Trailblazer's rate case filing. On July 11, 2018, four protests were filed that challenge various aspects of Trailblazer's 
rate case filing. FERC action remains pending.

On July 31, 2018, the FERC issued an Order accepting and suspending the rate case filing, and establishing hearing and 

settlement procedures. In the Order, the FERC approved the as-filed rate decreases for Expansion System Firm Transportation 
Service, as well as Trailblazer's interruptible services, effective August 1, 2018. The Commission also established a paper 
hearing to examine the extent to which Trailblazer is entitled to an income tax allowance. All remaining issues, including the 
proposed rate increases to Existing System Firm Transportation Service have been set for hearing and are accepted effective 
January 1, 2019, subject to refund. On August 30, 2018, Trailblazer and certain of Trailblazer's shippers filed a request for 
rehearing of the July 31, 2018 Order, which remains pending before the FERC. Consistent with the July 31, 2018 Order, on 
August 30, 2018, certain of Trailblazer's shippers and other interested parties filed initial briefs regarding the Income Tax 
Allowance issue. Trailblazer filed its reply brief regarding the same on September 14, 2018. On November 1, 2018, Trailblazer 
filed a supplement to its reply brief addressing a recent FERC order regarding the appropriate methodology used to calculate 
return on equity and discussing the impact of such order on Trailblazer's proposed Income Tax Allowance. The briefs remain 
pending before the FERC. On August 28, 2018, the participants attended an initial settlement conference. On September 12, 
2018, the Chief Administrative Law Judge issued an order continuing settlement judge procedures. On November 15, 2018, the 
participants attended a second settlement conference. On December 31, 2018, Trailblazer filed a motion with the FERC to 

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move the suspended tariff records into effect as of January 1, 2019. In January 2019, the participants attended a third settlement 
conference. A fourth settlement conference is scheduled in late February 2019. 

Pony Express

On May 25, 2016, Pony Express made a tariff filing with the FERC in Docket No. IS16-326-000 to update its non-contract 
rates under its Local Pipeline Tariff for local non-contract rates from all origins, by an amount reflecting the most recent FERC 
annual index adjustment of approximately 0.9799 effective July 1, 2016, which resulted in a reduction of the Pony Express 
non-contract rates of 2.01%.

On May 22, 2017 and May 31, 2017, Pony Express made tariff filings with the FERC in Docket Nos. IS17-263-000, 
IS17-464-000, and IS17-465-000 to increase the contract and non-contract rates by an amount reflecting the FERC annual 
index adjustment of approximately 0.2%, which became effective July 1, 2017.

On November 30, 2017, Pony Express filed with the FERC in Docket No. IS18-60-000 certain changes to its tariffs to 

reflect the addition of two new destination points, which became effective January 1, 2018.

On December 29, 2017, Pony Express filed with the FERC in Docket No. IS18-113-000 certain changes to its tariffs to 

reflect a new origin point in Rooks County, Kansas, which became effective on February 1, 2018. 

On February 28, 2018, Pony Express filed with the FERC in Docket No. IS18-199-000 certain changes to its tariffs to 

reflect a new origin point in Platteville, Colorado, which became effective on April 1, 2018.

On March 1, 2018, Pony Express submitted proposed revisions to its Rules and Regulations Tariff in Docket No. 
IS18-204-000 to establish the right to accept "Specialty Batches" of oil that do not conform to the Quality Specifications 
reflected in the tariff, provided that the acceptance is operationally feasible. These tariff changes became effective on April 1, 
2018.

On April 11, 2018, Pony Express filed with the FERC in Docket No. IS18–267–000 certain changes to its tariffs to reflect 

additional contract rates from a new origin point in Platteville, Colorado, which became effective May 1, 2018.

On May 2, 2018, Pony Express filed with the FERC in Docket No. IS18-297-000 certain changes to its rules and 

regulations applicable to new intermediate off-system storage points, which became effective May 15, 2018.

On May 31, 2018, Pony Express made tariff filings with the FERC in Docket No. IS18-570-000 to increase the contract 

and non-contract rates by an amount reflecting the FERC annual index adjustment of approximately 4.4% which became 
effective July 1, 2018.

On January 11, 2019, Pony Express filed with the FERC in Docket No. IS19-145-000 certain changes to its tariffs to 
incorporate the Sterling origin point in Logan County, Colorado in the published rate schedules, to establish a line fill return 
rate from the Natoma origin point, and to make minor clarifying edits.

Iron Horse

Petition for Declaratory Order - FERC Docket No. OR19-9-000

On November 9, 2018, Iron Horse filed a Petition for Declaratory Order with the FERC, requesting approval of Iron 
Horse's proposed rate structures, Committed Shipper rights, and prorationing provisions for shippers and various other aspects 
of the Transportation Service Agreement for service on the pipeline. The Petition is pending before the FERC.

19.  Legal and Environmental Matters 

Legal

In addition to the matters discussed below, we are a defendant in various lawsuits arising from the day-to-day operations of 

our business. Although no assurance can be given, we believe, based on our experiences to date, that the ultimate resolution of 
such matters will not have a material adverse impact on our business, financial position, results of operations, or cash flows. 

We have evaluated claims in accordance with the accounting guidance for contingencies that we deem both probable and 

reasonably estimable and, accordingly, have recorded no reserve for legal claims as of December 31, 2018 and 2017.

Rockies Express

Ohio Public Utility Excise Tax

The Ohio Tax Commissioner has assessed Rockies Express a public utility excise tax on transactions concerning product 

that entered and exited Rockies Express within the state of Ohio. This tax applies to gross receipts from all business conducted 
within the state, but exempts all receipts derived wholly from interstate business. Rockies Express has disputed any obligation 

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to pay Ohio's public utility excise tax, but has paid the taxes as assessed in order to preserve its right to appeal. The dispute is 
currently pending before the Ohio Supreme Court, with a final decision possible by the end of 2019. It is Rockies Express' 
position that the relevant statute exempts receipts derived wholly from interstate business from the public utility excise tax. The 
Ohio Supreme Court and the United States Supreme Court have both held that, once it enters an interstate pipeline, natural gas 
is moving in "interstate commerce" for the duration of its journey until it is delivered to a local distribution system. While it is 
difficult to accurately predict how the Ohio Supreme Court will decide the case, Rockies Express is optimistic about the 
ultimate outcome.

As of December 31, 2018, Rockies Express has paid public utility excise taxes to the state of Ohio totaling $7.1 million, 
accrued an additional $3.3 million for amounts expected to be assessed through the year ended December 31, 2018, and has 
recognized a $10.4 million deposit representing the anticipated refund of the public utility excise taxes paid.

Mineral Management Service Lawsuit

On June 30, 2009, Rockies Express filed claims against Mineral Management Service, a former unit of the U.S. 

Department of Interior (collectively "Interior") for breach of its contractual obligation to sign transportation service agreements 
for pipeline capacity that it had agreed to take on Rockies Express. The Civilian Board of Contract Appeals ("CBCA") 
conducted a trial and ruled that Interior was liable for breach of contract, but limited the damages Interior was required to pay. 
On September 13, 2013, the United States Court of Appeals for the Federal Circuit issued a decision affirming that Interior was 
liable for its breach of contract, but reversing the CBCA's decision to limit damages. The case was remanded to the CBCA for 
the purpose of calculating damages at a hearing. On May 20, 2016, Rockies Express and Interior agreed to resolve the claims in 
this matter in exchange for a $65 million cash payment to Rockies Express. Interior paid the amount due Rockies Express on 
June 23, 2016.

Ultra Resources

In early 2016, Ultra Resources, Inc. ("Ultra") defaulted on its firm transportation service agreement for approximately 0.2 

Bcf/d through November 11, 2019. In late March 2016, Rockies Express terminated Ultra's service agreement. On April 14, 
2016, Rockies Express filed a lawsuit against Ultra for breach of contract and damages in Harris County, Texas, seeking 
approximately $303 million in damages and other relief. On April 29, 2016, Ultra and certain of its debtor affiliates filed for 
protection under Chapter 11 of the United States Bankruptcy Code in United States Bankruptcy Court for the Southern District 
of Texas, which operated as a stay of the Harris County state court proceeding.

On January 12, 2017, Rockies Express and Ultra entered into an agreement to settle Rockies Express' approximately $303 

million claim against Ultra. In accordance with the settlement agreement, Ultra made a cash payment to Rockies Express of 
$150 million on July 12, 2017, and entered into a new, seven-year firm transportation agreement with Rockies Express 
commencing December 1, 2019, for west-to-east service of 0.2 Bcf/d at a rate of approximately $0.37 per dth/d, or 
approximately $26.8 million annually. We received our proportionate distribution from the cash settlement payment in July 
2017.

Michels Corporation

On June 17, 2014, Michels Corporation ("Michels") filed a complaint and request for relief against Rockies Express in the 

Court of Common Pleas, Monroe County, Ohio, as a result of work performed by Michels to construct the Seneca Lateral 
Pipeline in Ohio. Michels sought unspecified damages from Rockies Express and asserted claims of breach of contract, 
negligent misrepresentation, unjust enrichment and quantum meruit. Michels also filed notices of Mechanic's Liens in Monroe 
and Noble Counties, asserting $24.2 million as the amount due.

On February 2, 2017, Rockies Express and Michels agreed to resolve Michels' claims for a $10 million cash payment by 
Rockies Express. The cash payment was inclusive of approximately $5.9 million that Rockies Express had been withholding 
from Michels. Subsequently, Rockies Express and Michels entered into a definitive agreement with respect to the settlement 
and Rockies Express made the $10 million cash payment to Michels on February 16, 2017.

Environmental, Health and Safety

We are subject to a variety of federal, state and local laws that regulate permitted activities relating to air and water quality, 
waste disposal, and other environmental matters. We currently believe that compliance with these laws will not have a material 
adverse impact on our business, cash flows, financial position or results of operations. However, there can be no assurances that 
future events, such as changes in existing laws, the promulgation of new laws, or the development of new facts or conditions 
will not cause us to incur significant costs. We had environmental reserves of $7.4 million and $7.7 million at December 31, 
2018 and 2017, respectively.

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Rockies Express

Seneca Lateral

On January 31, 2018, Rockies Express experienced an operational disruption on its Seneca Lateral due to a pipe rupture 

and natural gas release in a rural area in Noble County, Ohio. There were no injuries reported and no evacuations. The release 
required Rockies Express to shut off the flow through the segment until February 27, 2018, when temporary repairs were 
completed allowing the segment to be placed back into service. Total cost of remediation was approximately $6.1 million prior 
to any insurance recoveries. Permanent repairs were completed in September 2018. As of February 8, 2019, Rockies Express 
has recovered a significant majority of these costs from insurance.

TMID

Casper Plant, EPA Notice of Violation

In August 2011, the EPA and the Wyoming Department of Environmental Quality ("WDEQ") conducted an inspection of 

the Leak Detection and Repair ("LDAR") Program at the Casper Gas Plant in Wyoming. In September 2011, Tallgrass 
Midstream, LLC ("TMID") received a letter from the EPA alleging violations of the Standards of Performance of Equipment 
Leaks for Onshore Natural Gas Processing Plant requirements under the Clean Air Act. TMID received a letter from the EPA 
concerning settlement of this matter in April 2013 and received additional settlement communications from the EPA and 
Department of Justice beginning in July 2014. Settlement negotiations are continuing, including the expected inclusion of TIGT 
as a party to any possible settlement as a result of TIGT owning a compressor that is located adjacent to the Casper Gas Plant 
site.

Casper Mystery Bridge Superfund Site

The Casper Gas Plant is part of the Mystery Bridge Road/U.S. Highway 20 Superfund Site also known as Casper Mystery 
Bridge Superfund Site. Remediation work at the Casper Gas Plant has been completed and we have requested that the portion 
of the site attributable to us be delisted from the National Priorities List. On July 3, 2017, our partial delisting request was 
published by the EPA in the Federal Register. On August 3, 2017, there were no adverse public comments, therefore on August 
29, 2017, the Casper Gas Plant portion of the Casper Mystery Bridge Superfund Site was delisted from the National Priorities 
List. 

Casper Gas Plant

On November 25, 2014, WDEQ issued a Notice of Violation for violations of Part 60 Subpart OOOO related to the 
Depropanizer project (wv-14388, issued 7/9/13) in Docket No. 5506-14. TMID had discussed the issues in a meeting with 
WDEQ in Cheyenne on November 17, 2014, and submitted a disclosure on November 20, 2014 detailing the regulatory issues 
and potential violations. The project triggered a modification of Subpart OOOO for the entire plant. The project equipment as 
well as plant equipment subjected to Subpart OOOO was not monitored timely, and initial notification was not made timely. 
Settlement negotiations with WDEQ are currently ongoing.

TMG

Archibald Booster Station

Tallgrass Midstream Gathering, LLC ("TMG") is currently a party to a remedy agreement entered into with the WDEQ in 
July 2013 with respect to the Archibald Booster Station located in Campbell County, Wyoming. In connection with the remedy 
agreement, TMG has agreed to complete certain remedial actions at the site related to a former earthen pit including semi-
annual groundwater sampling, and quarterly recovery activities at monitoring wells. The facility is currently in compliance with 
the WDEQ under the remedy agreement. 

Irwin Booster Station

TMG is also party to a remedy agreement entered into with the WDEQ in July 2013 with respect to the Irwin Booster 
Station located in Converse County, Wyoming. In connection with the remedy agreement, TMG has agreed to complete certain 
remedial actions at the site related to a former earthen pit including semi-annual groundwater sampling. The facility is currently 
in compliance with the WDEQ under the remedy agreement. 

Trailblazer

Pipeline Integrity Management Program

Starting in 2014 Trailblazer's operating capacity was decreased as a result of smart tool surveys that identified 

approximately 25 - 35 miles of pipe as potentially requiring repair or replacement. During 2016 and 2017, Trailblazer incurred 
approximately $21.8 million of remediation costs to address this issue, including replacing approximately 8 miles of pipe. To 
date the pressure and capacity reduction has not prevented Trailblazer from fulfilling its firm service obligations at existing 

137

subscription levels or had a material adverse financial impact on us. However, Trailblazer continued performing remediation to 
increase and maximize its operating capacity over the long-term and spent approximately $21 million during 2018 for this pipe 
replacement and remediation work. As of October 2018, the pipeline was returned to its maximum allowable operating 
capacity. Trailblazer is exploring all possible cost recovery options to recover expenditures, including recovery through a 
general rate increase, negotiated rate agreements with its customers, or other FERC-approved recovery mechanisms.

In connection with TEP's acquisition of Trailblazer in April 2014, TD agreed to indemnify TEP for certain out of pocket 

costs related to repairing or remediating the Trailblazer Pipeline. The contractual indemnity was capped at $20 million and 
subject to a $1.5 million deductible. TEP received the entirety of the $20 million from TD pursuant to the contractual indemnity 
as of December 31, 2017.

Pony Express

Pipeline Integrity

In connection with certain crack tool runs on the Pony Express System completed in 2015, 2016, and 2017, Pony Express 
completed approximately $18 million of remediation for anomalies identified on the Pony Express System associated with the 
initial conversion and commissioning of portions of the pipeline converted from natural gas to crude oil service. Remediation 
work was substantially complete as of March 31, 2018.

Terminals

System Failures

In January 2017, approximately 10,000 bbls of crude oil were released at the Sterling Terminal as the result of a defective 

roof drain system on a storage tank. The release was restricted to the containment area designed for such purpose and 
approximately 9,000 bbls were recovered. Remediation was complete as of June 30, 2017. The total cost to remediate the 
release was approximately $600,000. 

20.  Reportable Segments 

Our operations are located in the United States. We are organized into three reportable segments: (1) Natural Gas 
Transportation, (2) Crude Oil Transportation, and (3) Gathering, Processing & Terminalling. Corporate and Other includes 
corporate overhead costs that are not directly associated with the operations of our reportable segments, such as interest and 
fees associated with our revolving credit facility and the Senior Notes, public company costs, and equity-based compensation 
expense.

Natural Gas Transportation

The Natural Gas Transportation segment is engaged in the ownership and operation of FERC-regulated interstate natural 

gas pipelines and an integrated natural gas storage facility that provide services to on-system customers (such as third-party 
LDCs), industrial users and other shippers. The Natural Gas Transportation segment includes our aggregate 75% membership 
interest in Rockies Express, inclusive of the additional 25.01% membership interest acquired effective February 7, 2018.

Crude Oil Transportation

The Crude Oil Transportation segment is engaged in the ownership and operation of the Pony Express System, which is a 
FERC-regulated crude oil pipeline serving the Bakken Shale, Denver-Julesburg and Powder River Basins, and other nearby oil 
producing basins.

Gathering, Processing & Terminalling

The Gathering, Processing & Terminalling segment is engaged in the ownership and operation of natural gas gathering and 

processing facilities that produce NGLs and residue gas sold in local wholesale markets or delivered into pipelines for 
transportation to additional end markets; our crude oil terminal services; water business services provided primarily to the oil 
and gas exploration and production industry; the transportation of NGLs; and Stanchion.

These segments are monitored separately by management for performance and are consistent with internal financial 
reporting. These segments have been identified based on the differing products and services, regulatory environment and the 
expertise required for their respective operations. During the second quarter of 2018, upon completion of the TEP Merger, 
management updated TGE's internal reporting. Beginning in the second quarter of 2018, we consider Adjusted EBITDA, as 
described below, to be our primary segment performance measure.

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We consider Adjusted EBITDA to be our primary segment performance measure as we believe it is the most meaningful 

measure to assess our financial condition and results of operations as a public entity. We define Adjusted EBITDA as net 
income excluding the impact of interest, income taxes, depreciation and amortization, non-cash income or loss related to 
derivative instruments, non-cash long-term compensation expense, impairment losses, gains or losses on asset or business 
disposals or acquisitions, gains or losses on the repurchase, redemption or early retirement of debt, and earnings from 
unconsolidated investments, but including the impact of distributions from unconsolidated investments and deficiency 
payments received from or utilized by our customers. Adjusted EBITDA is calculated and presented at the Tallgrass Equity 
level, before consideration of noncontrolling interest associated with the Exchange Right Holders, which we believe provides 
investors the most complete picture of our overall financial and operational results.

The following tables set forth our segment information for the periods indicated:

2018

2017

2016

Year Ended December 31,

Revenue:

Total
Revenue

Inter-
Segment

External
Revenue

Total
Revenue

Inter-
Segment

External
Revenue

Total
Revenue

Inter-
Segment

External
Revenue

(in thousands)

Natural Gas
Transportation.......... $140,459
Crude Oil
Transportation..........

444,454

Gathering,
Processing &
Terminalling ............
279,665
Total revenue ........... $864,578

$ (4,661) $135,798

$141,021

$ (6,694) $134,327

$135,097

$ (5,641) $129,456

(39,319)

405,135

364,574

(10,676)

353,898

380,503

(370)

380,133

(27,339)

252,326

186,211

$(71,319) $793,259

$691,806

(18,538)

167,673
$(35,908) $655,898

113,533

$629,133

(11,460)

102,073
$(17,471) $611,662

139

 
 
Year Ended December 31,

Tallgrass Equity 
Adjusted EBITDA:

Total
Adjusted
EBITDA

2018

Inter-
Segment

External
Adjusted
EBITDA

Total
Adjusted
EBITDA

2017

Inter-
Segment

(in thousands)

External
Adjusted
EBITDA

Total
Adjusted
EBITDA

2016

Inter-
Segment

External
Adjusted
EBITDA

Natural Gas
Transportation .............. $377,224
Crude Oil
Transportation ..............

239,330

$(4,251) $ 372,973

$180,978

$(2,176) $ 178,802

$ 75,029

$(1,633) $ 73,396

(8,147)

231,183

140,785

4,878

145,663

132,154

4,881

137,035

Gathering, Processing
& Terminalling .............

Corporate and Other .....
Reconciliation to Net 
Income:
Add: ..............................
Equity in earnings 
of unconsolidated 
investments (1) ..........
Gain (loss) on 
disposal of assets(1) ..
Non-cash gain (loss) 
related to derivative 
instruments (1) ..........
Gain on 
remeasurement of 
unconsolidated 
investment (1)............
Less:.........................

Interest expense, 
net(1) .........................
Depreciation and 
amortization 
expense (1) ................
Distributions from 
unconsolidated 
investments (1) ..........
Non-cash 
compensation 
expense (1) ................
Deficiency 
payments, net (1).......
Loss on debt
retirement.................

Deferred income tax
expense ....................

Net income
attributable to
Exchange Right
Holders ....................

Net income (loss)
attributable to TGE ..

59,203

12,398

71,601

(21,321)

— (21,321)

16,083
(37,591)

(2,702)

13,381
— (37,591)

4,078
(2,142)

(3,248)
—

830
(2,142)

237,197

4,630

3,340

—

(95,465)

(74,998)

(302,364)

(8,634)

(14,443)

(2,245)

(55,709)

(208,618)

$ 137,127

66,922

189

(64)

2,744

(29,403)

(26,131)

(86,551)

(2,682)

(7,701)

—

(208,458)

(137,849)

$(128,729)

15,287

(526)

(650)

—

(16,632)

(25,567)

(22,085)

(1,862)

(9,672)

—

(17,741)

(95,882)

$ 33,789

(1)  Net of noncontrolling interest associated with less than wholly-owned subsidiaries of Tallgrass Equity.

140

 
 
Capital Expenditures:

Natural Gas Transportation .................................................... $
Crude Oil Transportation........................................................

Gathering, Processing & Terminalling...................................

Corporate and Other ...............................................................
Total capital expenditures....................................................... $

Unconsolidated Investments:

Year Ended December 31,

2018

2017
(in thousands)

2016

112,529

$

16,705

$

65,745

185,732

4,867

57,022

71,417

—

368,873

$

145,144

$

28,475

29,893

26,123

—

84,491

December 31, 2018 December 31, 2017
(in thousands)

Natural Gas Transportation ........................................................................................ $
Crude Oil Transportation............................................................................................

Gathering, Processing & Terminalling.......................................................................
Total unconsolidated investments .............................................................................. $

1,794,987

$

35,467

31,232

1,861,686

$

895,873

—

13,658

909,531

Assets:

December 31, 2018 December 31, 2017
(in thousands)

Natural Gas Transportation ........................................................................................ $
Crude Oil Transportation............................................................................................

Gathering, Processing & Terminalling.......................................................................

Corporate and Other ...................................................................................................
Total assets ................................................................................................................. $

2,606,696

$

1,423,740

1,522,559

340,514

1,606,666

1,407,758

943,340

334,249

5,893,509

$

4,292,013

21.  Selected Quarterly Financial Data (Unaudited) 

The following tables summarize our unaudited quarterly financial data for 2018 and 2017:

Quarter Ended 2018

First

Second

Third

Fourth

(in thousands, except per unit amounts)

Total revenues...................................................................... $
Operating income ................................................................ $
Net income........................................................................... $
Net income allocable to noncontrolling interests ................ $
Net income attributable to TGE........................................... $
Basic net income per Class A Share .................................... $
Diluted net income per Class A Share ................................. $

179,094

81,913

$

$

114,313
$
(97,578) $
$
16,735

0.29

0.29

$

$

193,589

79,275

$

$

109,701
$
(108,638) $
$
1,063

0.02

0.02

$

$

200,320

90,084

$

$

118,712
$
(59,162) $
$
59,550

0.38

0.38

$

$

220,256

99,359

124,945
(65,166)
59,779

0.38

0.38

During the second quarter of 2018, we recognized increased deferred income tax expense as a result of our increased 

ownership in TEP due to the TEP Merger and the resulting increase in income allocated to TGE.

141

 
 
 
Quarter Ended 2017

First

Second

Third

Fourth

(in thousands, except per unit amounts)

Total revenues...................................................................... $
Operating income ................................................................ $
Net income........................................................................... $
Net income allocable to noncontrolling interests ................ $
Net income (loss) attributable to TGE................................. $
Basic net income (loss) per Class A Share .......................... $
Diluted net income (loss) per Class A Share ....................... $

144,400

63,226

$

$

$
67,238
(55,209) $
$
12,029

0.21

0.21

$

$

160,863

66,944

$

$

$
79,167
(70,414) $
$
8,753

0.15

0.15

$

$

175,869

74,003

$

$

$
170,777
(154,911) $
$
15,866

0.27

0.27

$

$

174,766

67,674
(93,197)
(72,180)
(165,377)
(2.85)
(2.85)

During the third quarter of 2017, we recognized equity in earnings relating to our proportionate share of the Ultra 
settlement discussed in Note 19 – Legal and Environmental Matters. During the fourth quarter of 2017, we remeasured our 
deferred tax asset based on the new tax rates as a result of the federal rate change under the TCJA signed into law on December 
22, 2017, resulting in an increase to our tax provision. For additional information, see Note 17 – Income Taxes.

22.  Subsequent Events 

Powder River Gateway

In January 2019, we closed on an expansion of our joint venture with Silver Creek. Effective January 1, 2019, we own a 

51% membership interest in Powder River Gateway, which owns the Iron Horse Pipeline, the PRE Pipeline, and crude oil 
terminal facilities in Guernsey, Wyoming. For additional information, see Note 3 – Acquisitions and Dispositions.

Blackstone Acquisition 

On January 31, 2019, we announced that BIP had entered into a definitive purchase agreement with Kelso, EMG, and 
Tallgrass KC pursuant to which BIP will acquire 100% of the membership interests in our general partner and an approximate 
44% economic interest in us. Subject to customary closing conditions, the Blackstone Acquisition is expected to close within 
the first quarter of 2019.

142

Item 9. Changes in and Disagreements With Accountants on Accounting and Financial Disclosures

None.

Item 9A. Controls and Procedures

Evaluation of Disclosure Controls and Procedures

As required by Rule 13a-15(b) of the Exchange Act, we have evaluated, under the supervision and with the participation of 

our management, including our principal executive officer and principal financial officer, the effectiveness of the design and 
operation of our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act) as of 
the end of the period covered by this report. Our disclosure controls and procedures are designed to provide reasonable 
assurance that the information required to be disclosed by us in reports that we file or submit under the Exchange Act is 
recorded, processed, summarized and reported within the time periods specified in the rules and forms of the SEC, and such 
information is accumulated and communicated to our management, including our principal executive officer and principal 
financial officer, as appropriate, to allow timely decisions regarding required disclosure. Based upon their evaluation of those 
controls and procedures performed as of December 31, 2018, our principal executive officer and principal financial officer 
concluded that our disclosure controls and procedures were effective.

Management's Report on Internal Control over Financial Reporting

Our management is responsible for establishing and maintaining adequate internal control over financial reporting (as 

defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act). Our internal control over financial reporting is a process 
designed under the supervision of our principal executive officer and principal financial officer to provide reasonable assurance 
regarding the reliability of financial reporting and the preparation of our consolidated financial statements for external purposes 
in accordance with generally accepted accounting principles.

As of December 31, 2018, the Partnership's management assessed the effectiveness of our internal control over financial 

reporting based on the criteria for effective internal control over financial reporting established in Internal Control - Integrated 
Framework (2013), issued by the Committee of Sponsoring Organizations of the Treadway Commission. Based on this 
assessment and those criteria, management determined that we maintained effective internal control over financial reporting as 
of December 31, 2018.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, 

projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate 
because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

Our independent registered public accounting firm, PricewaterhouseCoopers LLP, audited the effectiveness of our internal 

control over financial reporting as of December 31, 2018, as stated in their report included in Item 8.—Financial Statements 
and Supplementary Data of this Annual Report. 

Changes in Internal Control over Financial Reporting

There have not been any changes in our internal control over financial reporting (as such term is defined in Rules 13a-15(f) 

and 15d-15(f) under the Exchange Act) during the quarter ended December 31, 2018 that have materially affected, or are 
reasonably likely to materially affect, our internal control over financial reporting.

Item 9B. Other Information

None.

143

Item 10. Directors, Executive Officers and Corporate Governance

PART III

We are a limited partnership and have no officers or directors. Unless otherwise indicated, references to our officers and 

directors in Items 10 through 14 of this Annual Report refer to the officers and directors of our general partner.

Management of Tallgrass Energy, LP

Our general partner's board of directors and executive officers manage our operations and activities. Our general partner is 

not elected by our Class A shareholders and will not be subject to re-election in the future. Directors of our general partner 
oversee our operations. Class A shareholders are not entitled to elect the directors of our general partner or directly or indirectly 
participate in our management or operations.

Unlike shareholders in a publicly traded corporation, our shareholders are not entitled to select our general partner or elect 
the members of the board of directors of our general partner. Tallgrass Energy Holdings is the sole owner of our general partner 
and has the right to appoint the entire board of directors of our general partner, including our independent directors. As of 
February 8, 2019, EMG, Kelso and Tallgrass KC own, in the aggregate, approximately 100% of the outstanding membership 
interests in Tallgrass Energy Holdings. Following consummation of the Blackstone Acquisition, the membership interests in our 
general partner will be owned by BIP. As of February 8, 2019, all the executive officers and certain of the directors of our 
general partner are also officers and/or directors of Tallgrass Energy Holdings.

As of December 31, 2018, the board of directors of our general partner had nine directors, four of whom the board has 
determined meet the independence standards established by the NYSE. The four independent directors are Jeffrey A. Ball, 
Thomas A. Gerke, Roy N. Cook and Terrance D. Towner. The NYSE does not require a publicly-traded limited partnership like 
ours to have a majority of independent directors on the board of directors of its general partner or to establish a compensation 
or a nominating and corporate governance committee. However, our general partner is required to have an audit committee of 
at least three members, and all its members are required to meet the independence and experience standards established by the 
NYSE and the Exchange Act. As of December 31, 2018, the audit committee of the board of directors of our general partner 
had four members, each of whom meet the independence and experience standards established by the NYSE and the Exchange 
Act. 

In evaluating director candidates, Tallgrass Energy Holdings assesses whether a candidate possesses the integrity, 
judgment, knowledge, experience, skill and expertise that are likely to enhance the board's ability to manage and direct our 
affairs and business, including, when applicable, to enhance the ability of committees of the board to fulfill their duties.

All the executive officers of our general partner are also officers of TEP GP, Tallgrass Equity, and Tallgrass Energy 

Holdings. Our officers will devote such portion of their business time to our business and affairs as they deem reasonably 
required to manage and conduct our operations. Our general partner and its affiliates do not currently receive any management 
fee in connection with the management of our business, but Tallgrass Equity reimburses our general partner for all expenses it 
incurs and payments it makes on our behalf pursuant to our partnership agreement. In addition, Tallgrass Equity reimburses 
Tallgrass Energy Holdings and its affiliates for all expenses it incurs and payments it makes on our behalf pursuant to the TGE 
Omnibus Agreement, including the costs of employee and director compensation and benefits as well as the cost of the 
provision of certain corporate, general and administrative services in each case to the extent properly allocable to us. Any direct 
expenses associated with being a separate publicly traded entity are borne by Tallgrass Equity. Neither our partnership 
agreement nor the TGE Omnibus Agreement limits the amount of expenses for which our general partner, Tallgrass Energy 
Holdings and their respective affiliates may be reimbursed. For more information, see "Certain Relationships and Related 
Party Transactions, and Director Independence-Omnibus Agreement."

144

Directors and Executive Officers of Our General Partner 

The following table sets forth certain information with respect to the executive officers and directors of our general partner 

as of February 8, 2019. 

Name

Age

Position with Our General Partner

David G. Dehaemers, Jr.

William R. Moler

Gary J. Brauchle

Christopher R. Jones

Gary D. Watkins

Frank J. Loverro

Stanley de J. Osborne

Jeffrey A. Ball

John T. Raymond

Thomas A. Gerke

Roy N. Cook

Terrance D. Towner

58

53

45

42

46

49

48

44

48

62

61

60

President, Chief Executive Officer and Director

Executive Vice President, Chief Operating Officer and Director

Executive Vice President and Chief Financial Officer

Executive Vice President, General Counsel and Secretary

Vice President and Chief Accounting Officer

Director

Director

Director

Director

Director

Director

Director

Our directors hold office until the earlier of their death, resignation, removal or disqualification or until their successors are 
duly elected or qualified. Officers serve at the discretion of the board of directors. There are no family relationships among any 
of the directors or executive officers of our general partner.

David G. Dehaemers, Jr. has been a director and the President and Chief Executive Officer of our general partner since 

February 2015. Mr. Dehaemers has served as the President and Chief Executive Officer of TEP GP and Tallgrass Equity since 
February 2013 and as a director and the President and Chief Executive Officer of Tallgrass Energy Holdings since August 2012. 
Previously, Mr. Dehaemers served as a director of TEP GP from February 2013 to June 2018. Prior to joining our general 
partner, Mr. Dehaemers served as Co-Founder, Chief Executive Officer and Chief Investment Officer of Tallgrass MLP Fund I, 
L.P., a private MLP Investment Fund from 2008 to 2012. Mr. Dehaemers also served as Executive Vice President of corporate 
development at Inergy, LP, or NRGY, from 2003 to 2007. Mr. Dehaemers played a role in NRGY's corporate development 
group, where he focused on developing its long-term expansion strategies in the midstream area, which included acquisitions 
and expansion projects in excess of $500 million. Mr. Dehaemers also was an owner of Inergy Holdings, L.P., or NRGP, when 
that entity went public in 2005. Before Inergy, Mr. Dehaemers was part of the executive management team of Kinder Morgan, 
Inc. and Kinder Morgan Energy Partners, LP from 1997 to 2003, where he served as the Chief Financial Officer from 1997 to 
2000. In 2000, Mr. Dehaemers assumed responsibility for Kinder Morgan's corporate development efforts, in which role he and 
his team developed and executed Kinder Morgan's growth strategies. Mr. Dehaemers holds an undergraduate degree in 
Accounting from Creighton University in Omaha, Nebraska and is a Certified Public Accountant. He also holds a Juris 
Doctorate in Law from University of Missouri-Kansas City. We believe that Mr. Dehaemers' education and experience, coupled 
with the leadership qualities demonstrated by his executive background, bring important experience and skill to the boards of 
directors of our general partner.

William R. Moler has been a director, Executive Vice President and Chief Operating Officer of our general partner since 
February 2015. Mr. Moler has also served as Executive Vice President and Chief Operating Officer of TEP GP and Tallgrass 
Equity since February 2013 and as a director, Executive Vice President and Chief Operating Officer of Tallgrass Energy 
Holdings since October 2012. Previously, Mr. Moler served as a director of TEP GP from February 2013 to June 2018. From 
2004 until his departure in October 2012, Mr. Moler served in various capacities with Inergy, L.P. and its affiliates, most 
recently as Senior Vice President and Chief Operating Officer of Inergy Midstream, L.P. and President and Chief Operating 
Officer—Natural Gas Midstream Operations of Inergy, L.P. Prior to joining Inergy, L.P., Mr. Moler was with Westport 
Resources Corporation from 2002 to 2004, where he served as both General Manager of Marketing and Transportation Services 
and General Manager of Westport Field Services, LLC. Prior to Westport, Mr. Moler served in various leadership positions at 
Kinder Morgan, Inc. and its predecessors from 1988 to 2002. Mr. Moler has also served on the Board of the National 
Parkinson's Foundation Heartland Region and served as its President from 2015 to 2017. Mr. Moler earned a Bachelor of 
Science degree in Mechanical Engineering from Texas Tech University in 1988. We believe that as a result of his background 
and knowledge, as well as the attributes of leadership demonstrated by his executive experience, Mr. Moler brings substantial 
experience and skill to the boards of directors of our general partner.

145

Gary J. Brauchle has been Executive Vice President and Chief Financial Officer of our general partner since February 
2015. Mr. Brauchle has also served as Executive Vice President and Chief Financial Officer of TEP GP and Tallgrass Equity 
since February 2013 and of Tallgrass Energy Holdings since November 2012. Prior to joining Tallgrass, Mr. Brauchle was Vice 
President and Chief Accounting Officer at McDermott International, Inc., a global engineering and construction company 
serving the oil and gas industry during 2012 and as Corporate Controller from 2010 to 2012. He joined McDermott in 2003 and 
served in various positions of increasing responsibility, including as Director of Internal Audit from 2005 to 2007 and as 
Director of Operational Accounting and Assistant Controller for an operating subsidiary from 2007 to 2008 and 2008 to 2010, 
respectively. Mr. Brauchle also served in the Houston office of PricewaterhouseCoopers' energy and utilities practice from 1997 
to 2003, including as a Manager from 2001 to 2003, and with a focus on midstream master limited partnerships, or MLPs. 
Mr. Brauchle was a postgraduate technical assistant at the Financial Accounting Standards Board (FASB) from 1996 to 1997. 
Mr. Brauchle is a Certified Public Accountant and a graduate of Texas A&M University, where he received a Master of Science 
in Accounting in 1996 and a Bachelor of Business Administration in Accounting in 1995.

Christopher R. Jones has been Executive Vice President, General Counsel and Secretary of our general partner since 
February 2018. Mr. Jones has also served as Executive Vice President, General Counsel and Secretary of TEP GP and Tallgrass 
Energy Holdings since February 2018. Previously, Mr. Jones served as Vice President, General Counsel and Secretary of our 
general partner, TEP GP and Tallgrass Energy Holdings from May 2016 to February 2018 and was an Assistant General 
Counsel at Tallgrass from October 2012 to May 2016. Prior to joining Tallgrass, Mr. Jones was an attorney with the law firm 
that is now known as Stinson Leonard Street LLP from 2003 to 2012, becoming a partner in 2008. Mr. Jones holds an 
undergraduate degree and a Juris Doctorate in Law from the University of Kansas.

Gary D. Watkins has been Vice President and Chief Accounting Officer and the principal accounting officer of our general 

partner since February 2015. Mr. Watkins has also served as Vice President and Chief Accounting Officer of TEP GP since 
April 2014 and of Tallgrass Equity and Tallgrass Energy Holdings since February 2015. Previously, Mr. Watkins served as Vice 
President, Controller and principal accounting officer of DCP Midstream Partners, LP and DCP Midstream, LLC from May 
2011 until April 2014. Prior to that, Mr. Watkins had held the positions of Senior Director—Marketing Accounting and Director 
of Corporate Accounting with DCP Midstream, LLC. Prior to joining DCP Midstream, LLC in November 2004, Mr. Watkins 
held various positions of increasing responsibility at Advanced Energy Industries, Inc. Mr. Watkins also served in the Denver 
offices of Arthur Andersen LLP and KPMG LLP from 1996 through 2002.

Frank J. Loverro has served as a director of our general partner since February 2015 and as a director of Tallgrass Energy 

Holdings since August 2012. Previously, Mr. Loverro served as a director of TEP GP from February 2013 to June 2018. 
Mr. Loverro joined Kelso in 1993, has been Managing Director since 2004 and a Member of Kelso's Management Committee 
since 2013, and in 2016 became Co-CEO. He spent the preceding three years in the private equity investment and high yield 
groups at The First Boston Corporation. Mr. Loverro is also a director of Delphin Shipping LLC, Physicians Endoscopy, LLC, 
Poseidon Containers Holdings LLC and Zenith Energy U.S., L.P. Mr. Loverro was also a director of Buckeye GP LLC. 
Mr. Loverro received a B.A. in Economics with Distinction from the University of Virginia in 1991. Mr. Loverro has extensive 
experience in corporate financing and in evaluating the financial performance and operations of companies across a variety of 
business sectors, including the energy sector. We believe that this background, in addition to Mr. Loverro's valuable experience 
serving on the boards of various public and private companies, provides an important source of insight and perspective to the 
board of directors of our general partner.

Stanley de J. Osborne has served as a director of our general partner since February 2015 and as a director of Tallgrass 
Energy Holdings since August 2012. Previously, Mr. Osborne served as a director of TEP GP from February 2013 to June 2018. 
Mr. Osborne joined Kelso in 1998 and has been Managing Director since 2007. He spent the preceding two years as an 
Associate at Summit Partners. He spent the previous three years at J.P. Morgan & Co. as an Associate in the Private Equity 
Group and an Analyst in the Financial Institutions Group. Mr. Osborne is also a director of LBM Acquisition, LLC, Southern 
Carlson and Traxys S.a.r.l. Mr. Osborne was also previously a director of CVR Energy, Inc. and Global Geophysical Services, 
Inc. Mr. Osborne received a B.A. in Government from Dartmouth College in 1993. Mr. Osborne has extensive experience in 
corporate financing and in evaluating the financial performance and operations of companies across a variety of business 
sectors, including the energy sector. We believe that this background, in addition to Mr. Osborne's valuable experience serving 
on the boards of various public and private companies, provides an important source of insight and perspective to the board of 
directors of our general partner.

Jeffrey A. Ball has served as a director of our general partner since February 2015 and as the Chairman of the audit 

committee of our general partner since April 2015. Further, Mr. Ball has served as a director of Tallgrass Energy Holdings since 
August 2012. Previously, Mr. Ball served as a director of TEP GP from May 2013 to June 2018 and as the Chairman of the 
audit committee of TEP GP from May 2013 to June 2018. Mr. Ball is a Managing Director at EMG, a diversified natural 
resource private equity fund manager, and is responsible for transaction origination, structuring and execution, portfolio 
company management and investment realization. Prior to joining EMG in October 2007, Mr. Ball was a Director in the 
investment banking group at Credit Suisse Securities (USA), LLC, covering the energy industry with a particular focus on 

146

MLPs and the midstream sector. Mr. Ball has completed over $55 billion of mergers and acquisitions and capital markets 
financing transactions during his career in the energy and minerals sector. Mr. Ball currently serves on the Boards of Ferus Inc., 
Ferus GP LLC, Ferus Natural Gas Fuels Inc., Ferus Natural Gas Fuels GP, LLC, Ascent Resources, LLC, Sable Permian 
Resources, LLC and is a board observer of MarkWest Utica EMG, LLC. Mr. Ball received a B.S. in Economics with honors 
from the Wharton School at the University of Pennsylvania. We believe that Mr. Ball's experience with mergers & acquisitions 
and financings of a variety of MLPs and other midstream assets provides a valuable resource to the board of directors of our 
general partner.

John T. Raymond has served as a director of our general partner since February 2015 and as a director of Tallgrass Energy 

Holdings since August 2012. Previously, Mr. Raymond served as a director of TEP GP from February 2013 to June 2018. Mr. 
Raymond is an owner and founder of The Energy & Minerals Group. EMG is a diversified natural resource private equity fund 
manager with approximately $16.0 billion of regulatory assets under management (RAUM) as of September 30, 2018. EMG 
has allocated approximately $11.0 billion in commitments across the energy sector since inception. Mr. Raymond has been 
Managing Partner and CEO since EMG's inception in 2006. Prior to that time, Mr. Raymond held leadership positions with 
various energy companies, including President and CEO of Plains Resources Inc., President and Chief Operating Officer of 
Plains Exploration and Production Company and Director of Development for Kinder Morgan, Inc. Mr. Raymond currently 
serves on numerous other boards, including the board of directors of each of NGL Energy Holdings, LLC, the general partner 
of NGL Energy Partners, LP, Plains All American GP LLC, the general partner of Plains All American Pipeline, LP, and PAA 
GP Holdings LLC, the general partner of Plains GP Holdings, LP. Mr. Raymond received a BSM degree from the A.B. Freeman 
School of Business at Tulane University with dual concentrations in finance and accounting. We believe that Mr. Raymond's 
experience with investment in and management of a variety of upstream and midstream assets and operations provides a 
valuable resource to the board of directors of our general partner. 

Thomas A. Gerke has served as a director of our general partner and as a member of the audit committee of our general 
partner since August 2015. Mr. Gerke has served as the General Counsel and Chief Administrative Officer at H&R Block, a 
global consumer tax services provider since May 2016 and prior to that starting in January 2012, he served as Chief Legal 
Officer. In addition, in 2017 while H&R Block went through a CEO transition, Mr. Gerke served as interim President and Chief 
Executive Officer from August 1, 2017 to October 8, 2017. Prior to joining H&R Block, from January 2011 to April 2011, Mr. 
Gerke served as Executive Vice President, General Counsel and Secretary of YRC Worldwide, a leading transportation service 
provider. From July 2009 to December 2010, Mr. Gerke served as Executive Vice Chairman of CenturyLink, a Fortune 500 
integrated communications business. From December 2007 to June 2009, he served as President and Chief Executive Officer at 
Embarq, then a Fortune 500 integrated communications business. He also held the position of Executive Vice President and 
General Counsel, Law and External Affairs at Embarq from May 2006 to December 2007. From October 1994 through May 
2006, Mr. Gerke held several executive and legal positions with Sprint, serving as Executive Vice President and General 
Counsel for over two years. Mr. Gerke currently serves as a member of the board of directors at Consolidated Communications 
Holdings, Inc. (NASDAQ: CNSL). He is also a former member of the boards of CenturyLink, Embarq and United States 
Telecom Association. In addition, he is a former member of the board of trustees for Rockhurst University and the Kansas City 
Local Investment Commission (LINC). Mr. Gerke earned his Bachelor of Science degree in Business Administration from the 
University of Missouri in Columbia, his Masters of Business Administration degree from Rockhurst University, and his Juris 
Doctorate from the University of Missouri School of Law in Kansas City. We believe that Mr. Gerke's leadership roles and 
board experience at a number of Fortune 500 and other large public companies, as well as his legal acumen and background 
outside of the energy industry, provides a valuable resource to the board of directors of our general partner.

Roy N. Cook has served as a director of our general partner and as a member of the audit committee of our general partner 

since September 2018. Previously, Mr. Cook served as a director of TEP GP from September 2013 to June 2018 and as a 
member of the audit committee of TEP GP from December 2017 to June 2018. From 2001 to 2013, Mr. Cook was employed 
by, and held a variety of roles within, the terminals division of Kinder Morgan, focusing on acquisitions, management, design 
and operations and specializing in the dry bulk side of the terminals business. Prior to 2001, Mr. Cook owned and managed 
several businesses in the service industry, including Milwaukee Bulk Terminals, Inc. and Dakota Bulk Terminals, Inc., each of 
which were sold to Kinder Morgan in 2001. Mr. Cook currently owns several small businesses across diverse industries, 
including a self-storage business, an electrical service company and a commercial real estate management and development 
company. He graduated from Kansas State University in 1979 with a B.S. degree in Agriculture Economics. We believe that 
Mr. Cook's MLP experience, and his intricate knowledge of the terminals business provides valuable strategic and practical 
insight, and perspective to the board of directors of our general partner. 

Terrance D. Towner has served as a director of our general partner and as a member of the audit committee of our general 
partner since September 2018. Previously, Mr. Towner served as a director of TEP GP and as a member of the audit committee 
of TEP GP from August 2013 to June 2018. Mr. Towner currently serves as the Executive Chairman of Jaguar Management Inc. 
and its affiliates, which makes direct investments in and provides advisory services to various private companies and clients. 
Mr. Towner is also a director of Base, Inc., Cando Rail Services Holdings, Inc., West Memphis Transload, West Memphis Base 

147

Railroad and SilverCreek RCM. Prior to joining Jaguar Management, Inc. in November 2018, Mr. Towner provided business 
advisory services. Between 2000 and December 2014, Mr. Towner was employed by Watco Companies, a Kansas based 
transportation company, in various capacities, including Vice Chairman, President, COO and CFO. As President and COO, Mr. 
Towner was responsible for all operations, safety, quality, human resources, information services and the financial performance 
of Watco's transportation, mechanical, and terminal and port divisions. Prior to joining Watco, Mr. Towner spent thirteen years 
in banking including three years as President and CEO of First State Bank & Trust Company of Pittsburg, Kansas. He also 
served for five years as President of Pitsco, a company that develops and markets computer based education products, and 
approximately two years as a financial and strategic consultant with Grant Thornton. Following his departure from Grant 
Thornton, Mr. Towner acquired Joplin.com, an internet service provider located in Joplin, Missouri and subsequently sold the 
company to Empire District Electric Company, a public utility. Mr. Towner earned his bachelor's degree in Economics from 
Pittsburg State University in 1981 and his MBA from Pittsburg State University in 1993. We believe that Mr. Towner's business 
acumen, and a unique perspective on the midstream services industry, helps provide valuable strategic and practical guidance, 
insight, and perspective to the board of directors of our general partner.

Audit Committee

The board of directors of our general partner has a standing audit committee which is currently comprised of four directors, 
Jeffrey A. Ball, Thomas A. Gerke, Roy N. Cook, and Terrance D. Towner. Each audit committee member has past experience in 
accounting or related financial management experience. The board has determined that all our audit committee members are 
independent under Section 303A.02 of the NYSE listing standards and Rule 10A-3 of the Securities Exchange Act of 1934, as 
amended. In making the independence determination, the board considered the requirements of the NYSE, the SEC and our 
Code of Business Conduct and Ethics. Among other factors, the board considered current or previous employment with us, our 
auditors or their affiliates by the director or his immediate family members, ownership of our voting securities and other 
material relationships with us. The audit committee has adopted a charter, which has been ratified and approved by the board of 
directors.

Jeffrey A. Ball has been designated by the board as the audit committee's financial expert meeting the requirements 
promulgated by the SEC and set forth in Item 407(d) of Regulation S-K of the Securities Exchange Act of 1934, as amended, 
based upon his education and employment experience as more fully detailed in Mr. Ball's biography set forth above. Mr. Ball 
also acts as the Chairman of our audit committee.

A copy of the Audit Committee Charter is available to any person, free of charge, at our website at 

www.tallgrassenergy.com.

Conflicts Committee

Our general partner may, from time to time, have a conflicts committee to which the board of directors will appoint at least 

two independent directors and which may be asked to review specific matters that the board believes may involve conflicts of 
interest between us and our general partner or the owners of our general partner. The conflicts committee will determine if the 
resolution of any conflict of interest referred to it by our general partner is in the best interests of our partnership. There is no 
requirement that our general partner seek the approval of the conflicts committee for the resolution of any conflict. The 
members of the conflicts committee may not be officers or employees of our general partner or directors, officers or employees 
of its affiliates, may not hold an ownership interest in the general partner or its affiliates other than shares or awards under any 
long-term incentive plan, equity compensation plan or similar plan implemented by the general partner or us, and must meet the 
independence and experience standards established by the NYSE and the Exchange Act to serve on an audit committee of a 
board of directors. 

Any matters approved by the conflicts committee will be conclusively deemed to have been approved by all of our 

partners, and shall not constitute a breach by our general partner of any duties it may owe us or our shareholders. Any 
shareholder challenging any matter approved by the conflicts committee will have the burden of proving that the members of 
the conflicts committee did not subjectively believe that the matter was in the best interests of our partnership. Moreover, any 
acts taken or omitted to be taken in reliance upon the advice or opinions of experts such as legal counsel, accountants, 
appraisers, management consultants and investment bankers, where our general partner (or any members of the board of 
directors of our general partner including any member of the conflicts committee) reasonably believes the advice or opinion to 
be within such person's professional or expert competence, shall be conclusively presumed to have been done or omitted in 
good faith. 

Corporate Governance Guidelines and Code of Business Conduct and Ethics

Our general partner has adopted Corporate Governance Guidelines and a Code of Business Conduct and Ethics applicable 

to all of our employees, officers and directors with regard to Partnership-related activities. The Corporate Governance 
Guidelines and the Code of Business Ethics incorporate guidelines designed to deter wrongdoing and to promote honest and 
ethical conduct and compliance with applicable laws and regulations. They also incorporate expectations of our employees that 

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enable us to provide accurate and timely disclosure in our filings with the SEC and other public communications. A copy of the 
Corporate Governance Guidelines and the Code of Business Conduct and Ethics are available to any person, free of charge, at 
our website at www.tallgrassenergy.com.

The Chairman of the audit committee of our general partner, currently Jeffrey A. Ball, presides over any executive session 

of the board of directors of our general partner in which the members of our management are not present. Interested parties 
may communicate directly with the independent members of the board of directors of our general partner by submitting in an 
envelope marked "Confidential" addressed to the "Independent Members of the Board" in care of the Secretary of the General 
Partner at: Tallgrass Energy, LP, 4200 W. 115th Street, Suite 350, Leawood, Kansas 66211.

Section 16(a) Beneficial Ownership Reporting Compliance

Section 16(a) of the Exchange Act requires members of our general partner's board of directors, executive officers of our 

general partner, and persons who own more than 10% of a registered class of our equity securities, to file with the SEC, and 
any exchange or other system on which such securities are traded or quoted, initial reports of ownership and reports of changes 
in ownership of our Class A shares, Class B shares and other equity securities. Officers, directors and greater than 10% 
shareholders are required by the SEC's regulations to furnish to us and any exchange or other system on which such securities 
are traded or quoted with copies of all Section 16(a) forms they file with the SEC.

Based solely upon a review of Forms 3, 4 and 5, and amendments thereto, we know of no director, officer, or beneficial 
owner of more than 10% of any class of our equity securities registered pursuant to Section 12 of the Exchange Act that failed 
to file timely any reports required to be furnished during 2017 pursuant to Section 16(a) of the Exchange Act.

Item 11. Executive Compensation

Compensation Discussion and Analysis

Executive Summary and Background

We and our general partner were formed in Delaware in February 2015. Our general partner did not accrue any obligations 
with respect to management incentive or retirement benefits for its directors and executive officers until after our initial public 
offering in May 2015. Our business is managed and operated by the directors and executive officers of our general partner. All 
employees, including our Named Executive Officers (as defined in "Summary Compensation Table" below), are employed by 
Tallgrass Management, LLC ("Tallgrass Management"). Prior to July 1, 2018, Tallgrass Management was a wholly-owned 
subsidiary of Tallgrass Energy Holdings. Effective July 1, 2018, Tallgrass Management was contributed to Tallgrass Equity in 
connection with the TEP Merger. As a result, the costs of employer and director compensation and benefits are now incurred 
directly by Tallgrass Equity.

Compensation of our Named Executive Officers is set and approved by the board of directors of our general partner and by 

the board of managers of Tallgrass Energy Holdings, which controls our general partner. Prior to July 1, 2018, we reimbursed 
Tallgrass Energy Holdings and its affiliates for all salaries, benefits and other compensation expenses for employees of 
Tallgrass Management (including the Named Executive Officers) to the extent such employees provided services to us pursuant 
to an allocation agreed upon between our general partner and Tallgrass Energy Holdings under the terms of the TGE Omnibus 
Agreement. Other than the employment agreement with our Chief Executive Officer, David G. Dehaemers, Jr., none of our 
Named Executive Officers has entered into any employment agreements with Tallgrass Management, our general partner or any 
other affiliate of TGE.

 Philosophy and Objectives

Since our initial public offering in May 2015, we have employed a compensation philosophy that emphasizes pay for 

performance and places the majority of each Named Executive Officer's compensation at risk. We believe our pay-for-
performance approach aligns the interests of our Named Executive Officers with that of our Class A shareholders, and at the 
same time enables us to maintain a lower level of recurring compensation costs in the event our operating or financial 
performance is below expectations. We design our executive compensation to attract and retain individuals with the background 
and skills necessary to successfully execute our business model in a demanding environment, to motivate those individuals to 
reach near-term and long-term goals in a way that aligns their interest with that of our Class A shareholders, and to reward 
success in reaching such goals. 

We use three primary elements of compensation to fulfill that design: salary, bonuses and long-term equity incentive 
awards. Bonuses and long-term equity incentives (as opposed to salary) generally represent the performance driven elements. 
They are also flexible in application and can be tailored to meet our objectives. The determination of specific individuals' 
bonuses is based on their relative contribution to achieving or exceeding relative near-term company goals and the 
determination of specific individuals' long-term incentive equity awards is based on their actual and anticipated contribution to 

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longer term performance objectives. The primary long-term measure of our performance is our ability to increase quarterly 
dividends to our Class A shareholders while maintaining safe operations and long-term stable cash flow and financial health. 

We do not maintain a defined benefit or pension plan for our Named Executive Officers as we believe such plans primarily 

reward longevity and not performance. We provide a basic benefits package generally to all employees, which includes a 
401(k) plan and health, disability and life insurance. 

Elements of Compensation

Salary. We benchmark our salary amounts to comparable companies in our industry. We believe our salaries are generally 
competitive with the universe of similarly situated midstream energy companies, but are moderate relative to energy industry 
competitors for people with similar roles and responsibilities.

Bonuses. Our bonuses are annual discretionary bonuses in which all of our current Named Executive Officers potentially 

participate. Our bonuses to Named Executive Officers generally consist of a cash bonus. In 2018, Mr. Brauchle, Mr. Moler and 
Mr. Jones were granted awards under the Legacy LTIP (as defined below) as an additional component of their 2018 bonus. 
These awards were granted on January 31, 2019 and vested immediately. The recipients of these awards will receive the Class 
A shares as a result of the vesting on January 31, 2020. 

Awards under Long-Term Incentive Plans. We have two long-term incentive plans. The Tallgrass Energy GP, LLC Long-

Term Incentive Plan (f/k/a the TEGP Management, LLC Long-Term Incentive Plan), was originally adopted by our general 
partner effective as of May 1, 2015, and was amended and restated effective August 2, 2018 (as amended, the "TGE LTIP"). In 
addition, the Tallgrass MLP GP, LLC Long-Term Incentive Plan was originally adopted by TEP GP effective as of May 13, 
2013, and was amended and restated effective August 2, 2018 (as amended, the "Legacy LTIP" and together with the TGE 
LTIP, the "Plans"). In connection with the completion of the TEP Merger effective June 30, 2018, discussed in Note 1 –
 Description of Business, the Legacy LTIP was assumed by our general partner and TEP's outstanding equity participation units 
were converted to equity participation shares at a ratio of 2.0 equity participation shares for each outstanding TEP equity 
participation unit. 

Awards under the Plans may consist of, among others, unrestricted shares, restricted shares, equity participation shares, 
options and share appreciation rights which may be granted to (i) the employees of our general partner and its affiliates who 
perform services for us, (ii) the non-employee directors of our general partner and (iii) the consultants who perform services for 
us (such awards, the "LTIP Awards"). Historically, we have used equity participation share awards under the Plans to encourage 
and reward timely achievement of certain events or dividend levels and align the long-term interests of our Named Executive 
Officers with those of our Class A shareholders. An equity participation share is the right to receive, upon the satisfaction of 
vesting criteria specified in the grant, a Class A share. Equity participation share awards under the Plans have been, and we 
expect will continue to be, the primary long-term equity incentive provided to our Named Executive Officers and appropriately 
incentivizes our Named Executive Officers to seek stable dividend growth. 

Vesting Conditions. The vesting conditions applicable to the equity participation shares held by Named Executive Officers 

that are outstanding under the Plans can generally be divided into the following categories:

•  The first category of awards was originally granted by TEP between August 2015 and September 2015 with vesting 
occurring in two parts. One-half vests on the later to occur of the first date on which TEP paid a regular quarterly 
distribution of at least $0.6875 on each outstanding common unit (the "TEP Distribution Achievement Date") or May 
13, 2018, and the other half vests on the later to occur of the TEP Distribution Achievement Date or May 13, 2019. 
The TEP Distribution Achievement Date occurred on May 13, 2016, and the first half of the awards in this category 
vested on May 13, 2018. The remaining half will vest on May 13, 2019 as long as the employee satisfies the 
continuing service requirement set forth in the applicable award agreement. Mr. Jones and Mr. Watkins are the only 
Named Executive Officers that were granted equity participation shares in this category. The Blackstone Acquisition 
constitutes a change of control with respect to the awards in this category and as a result, any outstanding awards in 
this category will vest upon consummation of the Blackstone Acquisition.

•  The second category of awards was granted by TGE in 2015 to Mr. Jones and to Mr. Watkins. The terms of the awards 
to Mr. Jones and Mr. Watkins each stipulate that the equity participation shares will generally vest upon the later of the 
first date on which TGE pays a regular quarterly dividend of at least $0.35 on each outstanding Class A share (the 
"TGE Dividend Achievement Date") or May 12, 2019. The TGE Dividend Achievement Date was met upon payment 
of the $0.3550 dividend declared for the third quarter of 2017, thus these awards will vest on May 12, 2019 as long as 
the employee satisfies the continuing service requirement set forth in the applicable award agreement. The Blackstone 
Acquisition constitutes a change of control with respect to the awards in this category and as a result, any outstanding 
awards in this category will vest upon consummation of the Blackstone Acquisition.

•  The third category of awards was originally granted by TEP in November 2016 and will vest on November 1, 2019 as 
long as the employee satisfies the continuing service requirement set forth in the applicable award agreement. Mr. 

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Jones and Mr. Watkins are the only Named Executive Officers that were granted equity participation shares in this 
category. The Blackstone Acquisition constitutes a change of control with respect to the awards in this category and as 
a result, any outstanding awards in this category will vest upon consummation of the Blackstone Acquisition.

•  The fourth category of awards was originally granted by TEP in August 2017 (the "2017 Grants") and will vest on the 
earliest date on or after April 1, 2021, on which the average compounded annual distribution growth rate for TGE's 
regular quarterly distributions, based upon the regular quarterly distribution paid by TGE on, or immediately prior to, 
such date is at least 5% over an annualized distribution rate of $1.67 per TGE Class A share, as determined by the 
board of directors of our general partner. If such date has not occurred by August 2, 2024, such equity participation 
shares will expire and terminate and no vesting will occur. Mr. Jones and Mr. Watkins are the only Named Executive 
Officers that were granted equity participation shares in this category. The 2017 Grants do not vest solely as a result of 
the consummation of the Blackstone Acquisition. See "Potential Payments upon Termination or Change-in-Control" 
for a description of the conditions that would accelerate vesting of the 2017 Grants.

•  The fifth category of awards was originally granted by TEP in February 2018 and will vest on January 1, 2020 as long 
as the employee satisfies the continuing service requirement set for in the applicable award agreement. Mr. Brauchle, 
Mr. Moler, and Mr. Jones are the only Named Executive Officers that were granted equity participation shares in this 
category. The Blackstone Acquisition constitutes a change of control with respect to the awards in this category and as 
a result, any outstanding awards in this category will vest upon consummation of the Blackstone Acquisition.

•  The sixth category of awards was granted by TGE in October 2018 (the "2018 Grants") and will vest on the earliest 

date on or after November 1, 2022, on which the average compounded annual distribution growth rate, based upon the 
regular quarterly distribution paid by TGE on, or immediately prior to, such date is at least 5% over an annualized 
distribution rate of $1.99 per TGE Class A share, as determined by the board of directors of our general partner. If such 
date has not occurred by October 19, 2025, such equity participation shares will expire and terminate and no vesting 
will occur. Mr. Jones and Mr. Watkins are the only Named Executive Officers that were granted equity participation 
shares in this category. The 2018 Grants do not vest solely as a result of the consummation of the Blackstone 
Acquisition. See "Potential Payments upon Termination or Change-in-Control" for a description of the conditions that 
would accelerate vesting of the 2018 Grants.

Relation of Compensation Elements to Compensation Objectives

Our compensation program is designed to motivate, reward and retain our Named Executive Officers. Bonuses serve as a 

near-term motivation and reward for achieving positive short-term results, such as meeting specified dividend growth and other 
financial guidance targets. Longer-term retention is facilitated by the requirement for continued employment or service for 
specified time periods in order for LTIP Awards to fully vest. The level of bonuses and LTIP Awards reflect the moderate salary 
profile of our Named Executive Officers and the weighting towards performance based, at-risk compensation. 

We strive to focus on performance-based compensation elements in an attempt to create a performance-driven environment 

in which our Named Executive Officers are (i) motivated to perform over both the short-term and the long-term, 
(ii) appropriately rewarded for their services and (iii) encouraged to remain with us even after meeting long-term performance 
goals. We believe our compensation philosophy as implemented by application of the three primary compensation elements 
(i) aligns the interests of our Named Executive Officers with our Class A shareholders, (ii) positions us to achieve our business 
goals, and (iii) effectively encourages the exercise of sound judgment and risk-taking that is conducive to creating and 
sustaining long-term value. We believe the processes we employ to apply the elements of compensation (as discussed in more 
detail below) provide an adequate level of oversight with respect to the degree of risk being taken by management to achieve 
short-term and long-term performance goals. See "Relation of Compensation Policies and Practices to Risk Management."

We believe our compensation program has been instrumental in our achievement of stated objectives. One of the primary 
measures of our performance is our ability to enhance the ability of our assets to generate cash available for dividends that we 
can use to increase quarterly dividends to our Class A shareholders. In the period since our initial public offering through 
December 31, 2018, our compounded annual dividend growth rate is 48%. This dividend growth has, in part, supported our 
decision to pay bonuses to our Named Executive Officers related to that period.

Application of Compensation Elements

Salary. We do not make systematic annual adjustments to the salaries of our Named Executive Officers. We do, however, 

make salary adjustments as necessary to ensure that our salaries remain competitive in the industry marketplace. 

Annual Discretionary Bonuses. Annual discretionary bonuses are determined based on our performance relative to our 
annual budget, our dividend growth targets, and other quantitative and qualitative goals established each year. Such annual 
objectives are discussed and reviewed with the board of directors periodically during the year and then again in conjunction 
with the review and authorization of the annual budget and this annual report. 

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At the end of each year, the CEO, with assistance from other members of executive management, performs a quantitative 
and qualitative assessment of our performance relative to our goals. Key quantitative measures include Adjusted EBITDA, cash 
available for dividend, dividend coverage, and growth in the annualized quarterly dividend level per Class A share relative to 
annual growth targets. We also compare our market performance relative to our peers and major indices. Our primary 
performance metric is our ability to generate increasing and sustainable cash dividends to our Class A shareholders. 
Accordingly, although net income and net income per unit are monitored to highlight inconsistencies with our primary 
performance metrics, we do not consider net income and net income per unit to be key performance measures. Executive 
management's analysis of our performance examines our accomplishments, shortfalls and overall performance against 
opportunity, taking into account controllable and non-controllable factors encountered during the year.

After the annual company-level performance analysis is completed by our CEO and other members of executive 
management, that same group, along with personnel from our human resources department, considers bonuses and salary 
adjustments for our employees, including our Named Executive Officers. There are no set formulas for determining salary 
adjustments or annual discretionary bonuses for our Named Executive Officers. Factors considered by executive management 
in determining the level of salary adjustment and bonus in general include (i) whether or not we achieved any goals established 
for the year and any notable shortfalls relative to expectations; (ii) the level of difficulty associated with achieving any such 
objectives based on the opportunities and challenges encountered during the year; (iii) current year operating and financial 
performance relative to both public guidance and prior year's performance; (iv) significant transactions or accomplishments for 
the period not included in the goals for the year; (v) our prospects at the end of the year with respect to future growth and 
performance; and (vi) our positioning at the end of the year with respect to our targeted credit profile. The CEO and other 
members of executive management take these factors into consideration, as well as the relative contributions of each of our 
Named Executive Officers to the year's performance, in developing recommendations for Named Executive Officer bonus 
amounts and salary adjustments.

These recommendations for discretionary bonus amounts and salary adjustments for our Named Executive Officers are 
presented to the board of directors of our general partner and the board of managers of Tallgrass Energy Holdings, adjusted as 
appropriate, and then formally approved by those boards. In several historical instances, the CEO has requested that his bonus 
amount be reduced or eliminated.

Long-Term Incentive Awards. We do not make systematic annual grants of LTIP Awards to our Named Executive Officers. 

We have historically attempted to time the granting of LTIP Awards such that the creation of new long-term incentives 
coincides with the satisfaction of vesting criteria under existing awards. We have not formally decided on a recurring grant 
cycle for future grants, but we intend for future grants to provide a balance between a meaningful retention period for us and a 
visible, reasonable, growth-oriented reward for the Named Executive Officer. Under existing LTIP Awards, achievement of 
performance targets does not shorten the minimum service period requirement. 

Application in 2018

In connection with the announcement of the TEP Merger in March 2018, we established the following financial 

performance objectives for 2018:

•  Adjusted EBITDA of $755 - $835 million for the year ended December 31, 2018;

•  Maintenance capital of $20 - 30 million for the year ended December 31, 2018;

•  Dividend coverage of greater than 1.20x for the year ended December 31, 2018; and 

•  Growth of approximately 38 - 42% in our annualized dividend rate for the calendar year 2018.

We met or exceeded all these goals:

•  Our Adjusted EBITDA for the year ended December 31, 2018 was approximately $860.4 million;

•  Our maintenance capital for the year ended December 31, 2018 was approximately $21 million;

•  Our dividend coverage for the year ended December 31, 2018 was approximately 1.26x; and

•  Our dividends on Class A shares in the fourth quarter of 2018 represented a 41.5% increase from the fourth quarter of 

2017.

Additionally, our internal qualitative goals included (a) advancing multi-year programs and initiatives and preparing the 
organization for future growth, and (b) continuing to promote a culture of safety and environmental responsibility throughout 
the organization. We achieved several accomplishments with respect to these qualitative goals, including:

•  The execution of the Merger Agreement and successful completion of the TEP Merger with the expected benefits of 

streamlining our corporate structure, lowering our cost of capital, and broadening our investor appeal; 

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•  The acquisitions from Tallgrass Development of an additional 25.01% membership interest in Rockies Express and 

the remaining 2% membership interest in Pony Express in February 2018;

•  Third-party acquisitions in 2018, including the acquisition of a 38% membership interest in Deeprock North in 

January 2018, a 100% membership interest in Buckhorn Energy Services, LLC and Buckhorn SWD Solutions, LLC 
in January 2018, a 51% membership interest in Pawnee Terminal in April 2018, and a 100% membership interest in 
NGL Water Solutions Bakken, LLC in November 2018;

•  The assignment by Fitch Ratings of investment grade ratings to TEP and Rockies Express in September 2018; 

•  The amendment of the TEP revolving credit facility in July 2018, increasing the available amount from $1.75 billion 

to $2.25 billion and permitting the repayment of the Tallgrass Equity revolving credit facility; and

•  The senior note offerings of the 2023 Notes in an aggregate principal amount of $500 million in September 2018.

For 2018, the elements of compensation were applied as described below.

Salary. In 2018, we did not implement material salary increases for Mr. Dehaemers, Mr. Brauchle, or Mr. Moler. Mr. Jones 

and Mr. Watkins received salary increases of approximately 10% over 2017.

Bonuses. Based on the CEO's annual performance review and the individual performance of each of our Named Executive 
Officers, the board of directors of our general partner approved the annual bonuses for our Named Executive Officers reflected 
in the Summary Compensation Table and notes thereto. Such amounts take into account performance relative to our 2018 
goals; the level of difficulty associated with achieving such objectives; our relative positioning at the end of the year with 
respect to future growth and performance; the significant transactions or accomplishments for the period not included in the 
goals for the year; and our positioning at the end of the year with respect to our targeted credit profile. The board of directors of 
our general partner also considered, on a subjective basis, how well the executive officer performed his or her duties during the 
year.

Long-Term Incentive Awards. Each of our Named Executive Officers, with the exception of Mr. Dehaemers, received 
grants under the Plans in 2018. As noted below, we believe the substantial direct and indirect equity interests held by our 
management team, including our Named Executive Officers, in TGE, Tallgrass Energy Holdings and Tallgrass Equity aligns 
their interests with those of our Class A shareholders, and is taken into account when considering the level of equity incentives 
granted to our Named Executive Officers under our compensation programs.

Other Compensation Related Matters

Equity Ownership. Although we encourage our Named Executive Officers to acquire and retain ownership in Class A 
shares, we do not require our Named Executive Officers to maintain a specified equity ownership level. Our policies, including 
our Insider Trading Policy, strongly discourage our Named Executive Officers from using puts, calls or options to hedge the 
economic risk of their ownership in TGE. Based on the closing price of Class A shares on February 6, 2019, the value of the 
combined equity ownership of our Named Executive Officers discussed below was significantly greater than their combined 
aggregate salaries and bonuses for 2018. We believe that the substantial direct and indirect equity interests held by our 
management team in TGE and Tallgrass Energy Holdings further aligns their interests with those of our Class A shareholders, 
and is taken into account when considering the level of equity incentives granted to our Named Executive Officers under our 
compensation programs.

Equity Ownership in TGE, Tallgrass Energy Holdings and Tallgrass Equity. Each of our Named Executive Officers 

beneficially own Class A shares in TGE and some of our Named Executive Officers indirectly own equity interests in Tallgrass 
Energy Holdings, Tallgrass Equity and TGE through Tallgrass KC, an entity controlled by Mr. Dehaemers. As of February 6, 
2019, our Named Executive Officers beneficially owned, in the aggregate, 3,544,643 of TGE's Class A shares (excluding any 
unvested LTIP Awards). As of February 6, 2019, Tallgrass KC owned 29,416,692 Class B Shares in TGE and 29,416,692 Units 
in Tallgrass Equity, representing an approximate 10.50% ownership interest in TGE and Tallgrass Equity, respectively. In 
addition, as of February 6, 2019, Mr. Dehaemers controlled 281,171 Class B Shares in TGE and 281,171 Units in Tallgrass 
Equity through the David G. Dehaemers, Jr. Revocable Trust, dated April 26, 2006.

Recovery of Prior Awards. Except as provided by applicable laws and regulations, we do not have a policy with respect to 

adjustment or recovery of awards or payments if relevant company performance measures upon which previous awards were 
based are restated or otherwise adjusted in a manner that would have reduced the size of such award or payment if previously 
known.

Section 162(m). With respect to the deduction limitations under Section 162(m) of the Code, we are a limited partnership 

and do not fall within the definition of a "corporation" under Section 162(m).

Change-in-Control Triggers and Termination Payments.  The equity participation share grants to our Named Executive 
Officers other than the 2017 Grants and 2018 Grants include accelerated vesting triggered upon a change of control, as defined 
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in the respective award agreements. The Blackstone Acquisition constitutes a change of control with respect to these equity 
participation shares and as a result, any outstanding equity participation shares to our Named Executive Officers other than the 
2017 Grants and the 2018 Grants will vest upon consummation of the Blackstone Acquisition. Although the Blackstone 
Acquisition will constitute a qualifying transaction under the 2017 Grants and the 2018 Grants, vesting under such awards will 
not accelerate until one of the subsequent conditions described below occurs.

The 2017 Grants include accelerated vesting if either (i) both (A) a qualifying transaction occurs, as defined in the award 

agreement, and (B) Mr. Dehaemers ceases to be the Chief Executive Officer of our general partner or certain of its affiliates, or 
(ii) (A) Mr. Dehaemers ceases to be the Chief Executive Officer of our general partner or certain of its affiliates, and (B) the 
Named Executive Officer is thereafter terminated without cause. 

The 2018 Grants to Mr. Jones include accelerated vesting if either (i) both (A) a qualifying transaction occurs, as defined in 

the award agreement, and (B) in connection with or within 12 months following such qualifying transaction, Mr. Dehaemers 
ceases to be the Chief Executive Officer of our general partner or certain of its affiliates, or (ii) (A) Mr. Dehaemers ceases to be 
the Chief Executive Officer of our general partner or certain of its affiliates, and (B) within 2 years after the occurrence of such 
event, Mr. Jones is terminated without cause. The 2018 Grants to Mr. Watkins include accelerated vesting if either (i) both (A) a 
qualifying transaction occurs, and (B) in connection with or within 12 months following such qualifying transaction, Mr. 
Dehaemers, Mr. Moler, Mr. Brauchle or Mr. Jones cease to comprise at least one of the roles of Chief Executive Officer, Chief 
Operating Officer, Chief Financial Officer or General Counsel of our general partner or certain of its affiliates, or (ii) (A) Mr. 
Dehaemers, Mr. Moler, Mr. Brauchle or Mr. Jones cease to comprise at least one of the roles of Chief Executive Officer, Chief 
Operating Officer, Chief Financial Officer or General Counsel of our general partner or certain of its affiliates, and (B) within 2 
years after the occurrence of such event, Mr. Watkins is terminated without cause. 

The provision of equity acceleration for defined events help to create a retention tool by assuring the executive that the 

benefit of the compensation arrangement will be at least partially realized despite the occurrence of an event that could 
materially alter the executive's employment arrangement. In addition, the employment agreement for Mr. Dehaemers provides 
for severance in the event his employment is terminated without "cause" or in the event he resigns for "good reason." See 
"Potential Payments upon Termination or Change-in-Control." Except for the accelerated vesting of the 2017 Grants to Mr. 
Jones and Mr. Watkins and the 2018 Grants to Mr. Jones, if Mr. Dehaemers ceases to be the Chief Executive Officer of our 
general partner or certain of its affiliates and the Named Executive Officer is thereafter terminated without cause, no other 
Named Executive Officer has a contractual right to receive severance in the event of a termination of employment.

Relation of Compensation Policies and Practices to Risk Management

Our compensation policies and practices are designed to provide rewards for short-term and long-term performance, both 

on an individual basis and at the entity level. In general, optimal financial and operational performance, particularly in a 
competitive business like ours, requires some degree of risk-taking. Accordingly, the use of compensation as an incentive for 
performance could potentially cause management and others to take unnecessary or excessive risks to reach the performance 
thresholds. For us, such risks would primarily attach to the execution and financing of capital expansion projects and asset 
acquisitions and the realization of associated returns from both, as well as to certain commercial activities conducted in our 
operational segments, in order to achieve the dividend growth performance hurdles.

From a risk management perspective, we monitor and structure our commercial activities in a manner intended to control 

and minimize the potential for unwarranted risk-taking. See Note 9 – Risk Management. We also monitor and measure our 
capital projects and acquisitions relative to expectations. In general, we believe our compensation arrangements serve to 
minimize the incentive for unwarranted risk-taking to achieve short-term, unsustainable results. See "Compensation Discussion 
and Analysis – Relation of Compensation Elements to Compensation Objectives." 

In combination with our risk-management practices, we do not believe that risks arising from our compensation policies 

and practices for our employees are reasonably likely to have a material adverse effect on us.

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Summary Compensation Table

The following table reflects the total compensation of the principal executive officer, the principal financial officer and the 

three other most highly compensated executive officers of our general partner for 2018 (the "Named Executive Officers") for 
services rendered to all Tallgrass-related entities, including TEP, TGE, Tallgrass Management and Tallgrass Development, for 
the fiscal years ending December 31, 2018, 2017, and 2016.

David G. Dehaemers, Jr.

President, Chief Executive

Officer and Director

William R. Moler

Executive Vice President, Chief

Operating Officer and Director

Gary J. Brauchle

Executive Vice President and

Chief Financial Officer

Christopher R. Jones

Executive Vice President,

General Counsel and Secretary

Gary D. Watkins

Vice President and

Chief Accounting Officer

Year

2018

2017

2016

2018

2017

2016

2018

2017

2016

2018

2017

2016

2018

2017

2016

Salary (1)
$ 300,000

Cash 
Bonus (2)
$1,000,000

$ 300,000

$1,000,739

$ 300,000

$ 651,467

$ 300,000

$ 500,000

$ 300,000

$ 400,943

$ 300,000

$ 576,468

$ 300,000

$ 500,000

$ 299,712

$ 750,942

$ 294,904

$ 576,144

Equity 
Awards (3)
$

— $

All Other 
Compensation (4)
28,652

Total

$ 1,328,652

$

$

$

$

$

$

$

$

— $

— $

28,152

$ 1,328,891

27,544

$

979,011

951,328

$

28,652

$ 1,779,980

— $

— $

28,152

24,544

$

$

729,095

901,012

710,854

$

28,459

$ 1,539,313

— $

— $

27,955

$ 1,078,609

27,537

$

898,585

$ 297,116

$ 500,000

$ 3,821,254

$ 271,569

$ 750,942

$ 3,545,100

$ 240,068

$ 426,467

$

69,836

$ 247,116

$ 250,000

$ 1,209,600

$ 224,922

$ 248,435

$ 1,378,650

$ 222,975

$ 201,470

$

69,836

$

$

$

$

$

$

28,644

$ 4,647,014

27,686

$ 4,595,297

24,486

$

760,857

25,664

$ 1,732,380

23,356

$ 1,875,363

23,081

$

517,362

(1)  Reflects actual salary received. Salary adjustments are typically implemented during February, which results in odd 

amounts actually received by the indicated Named Executive Officer.

(2)  Represents discretionary cash bonuses paid in 2019, 2018 and 2017 based on performance in 2018, 2017 and 2016, 

respectively, as well as a bonus of $500 after tax that was paid to all employees in 2017, and a bonus of $1,000 after tax 
that was paid to all employees in 2016.

(3)  The amounts in this column include equity participation shares granted pursuant to the Plans. Each of our Named 

Executive Officers, with the exception of Mr. Dehaemers, received grants under the Plans in 2018. In addition, Mr. Moler, 
Mr. Brauchle, and Mr. Jones each received grants in January 2019 as a component of their 2018 bonuses. Mr. Jones and 
Mr. Watkins were the only Named Executive Officers to receive grants under the Plans during 2016 and 2017. These 
amounts represent the aggregate grant date fair value determined in accordance with ASC Topic 718 for equity 
participation units, or EPUs, granted under the Legacy LTIP prior to June 30, 2018 and equity participation shares, or EPSs 
granted under the Plans. Pursuant to SEC rules, the amounts shown in the Summary Compensation Table for awards 
subject to performance conditions are based on the probable outcome as of the date of grant and exclude the impact of 
estimated forfeitures. The EPUs and EPSs are non-participating, therefore the grant date fair value is discounted from the 
grant date fair value of TEP's common units or TGE's Class A shares, as appropriate, for the present value of the expected 
(but non-participating) future dividends during the vesting period. For additional information, see Note 16 – Equity-Based 
Compensation. These amounts do not correspond to the actual value that will be recognized by the executive.

(4)  The amounts in the column include the following: contributions under the 401(k) savings plan (includes $27,500 for 

Mr. Dehaemers, $27,500 for Mr. Moler, $27,307 for Mr. Brauchle, $27,500 for Mr. Jones, and $24,712 for Mr. Watkins for 
the year ended December 31, 2018; $27,000 for Mr. Dehaemers, $27,000 for Mr. Moler, $26,804 for Mr. Brauchle, 
$26,640 for Mr. Jones, and $22,492 for Mr. Watkins for the year ended December 31, 2017; and $26,500 for 
Mr. Dehaemers, $26,500 for Mr. Moler, $26,500 for Mr. Brauchle, $23,629 for Mr. Jones, and $22,297 for Mr. Watkins for 
the year ended December 31, 2016) and the dollar value of premiums paid for group life, accidental death and 
dismemberment insurance.

155

 
As required by Section 953(b) of the Dodd-Frank Act and Item 402(u) of Regulation S-K, we are providing information 
regarding the internal pay ratio between the annual total compensation of our Chief Executive Officer and the median of the annual 
total compensation of all employees. To determine the median of the annual total compensation of all such employees, excluding 
our Chief Executive Officer, we identified the "median employee" by comparing the amount of salary, wages and tips of such 
employees, whether full-time, part-time, seasonal or temporary, as reflected in the payroll records of Tallgrass Management for 
the period from January 1, 2018 through December 31, 2018. We determined that our Chief Executive Officer had annual total 
compensation of $1,328,652, which is reflected in the Summary Compensation Table above, and the median of the annual total 
compensation of all employees, excluding our Chief Executive Officer, was $96,979. Therefore, our Chief Executive Officer's 
annual  total  compensation  is  13.7  times  that  of  the  median  of  the  annual  total  compensation  of  all  employees  of  Tallgrass 
Management.

Grants of Plan-Based Awards Table 

The following table provides information concerning each grant of an award made to a Named Executive Officer during 

2018 under the Plans. 

Gary J. Brauchle

Grant Type

Grant Date

Number of
Shares or
Units

Grant Date 
Fair Value of 
Awards(1)

Executive Vice President and

Chief Financial Officer

TEP Equity Participation Units
TGE Equity Participation Shares

2/14/18
—

6,700 (2) $
$

—

William R. Moler

Executive Vice President, Chief

TEP Equity Participation Units

Operating Officer and Director

TGE Equity Participation Shares

2/14/18

—

14,500 (2) $
$
—

Christopher R. Jones

Executive Vice President, General

TEP Equity Participation Units

Counsel and Secretary

TGE Equity Participation Shares

2/14/18

10/19/18

6,700 (2) $
180,000 (3) $

30.83
—

30.83

—

30.83

17.28

Gary D. Watkins

Vice President and

TEP Equity Participation Units

—

Chief Accounting Officer

TGE Equity Participation Shares

10/19/18

—
$
70,000 (3) $

—

17.28

(1)  The amounts in this column represent the aggregate grant date fair value determined in accordance with ASC Topic 718 for 
equity participation units, or EPUs, granted under the Legacy LTIP prior to June 30, 2018 and equity participation shares, 
or EPSs, granted under the Plans. Pursuant to SEC rules, the amounts shown in this table for awards subject to 
performance conditions, if applicable, are based on the probable outcome as of the date of grant and exclude the impact of 
estimated forfeitures. The EPUs and EPSs are non-participating, therefore the grant date fair value is discounted from the 
grant date fair value of TEP's common units or TGE's Class A shares, as appropriate, for the present value of the expected 
(but non-participating) future dividends during the vesting period. For additional information, see Note 16 – Equity-Based 
Compensation. These amounts do not correspond to the actual value that will be recognized by the executive.

(2)  Vesting of the EPUs will occur on January 1, 2020 as long as the employee satisfies the continuing service requirement set 
forth in the applicable award agreement. These awards were converted to EPSs effective June 30, 2018 at a ratio of 2.0 
EPSs for each outstanding EPU. The Blackstone Acquisition constitutes a change of control with respect to these EPSs and 
as a result, any outstanding EPSs under these awards will vest upon consummation of the Blackstone Acquisition.

(3)  Vesting of the EPSs will occur on the earliest date on or after November 1, 2022, on which the average compounded 

annual distribution growth rate, based upon the regular quarterly distribution paid by TGE on, or immediately prior to, 
such date is at least 5% over an annualized distribution rate of $1.99 per TGE Class A share, as determined by the board of 
directors of our general partner. If such date has not occurred by October 19, 2025, such EPSs will expire and terminate 
and no vesting will occur. These EPSs do not vest solely as a result of the consummation of the Blackstone Acquisition. 
See "Potential Payments upon Termination or Change-in-Control" for a description of the conditions that would accelerate 
vesting of these EPSs.

156

 
 
Narrative Disclosure to Summary Compensation Table and Grants of Plan-Based Award Table

A narrative description of all material factors necessary to an understanding of the information included in the above 
Summary Compensation Table and Grants of Plan-Based Awards Table is included in "Compensation Discussion and Analysis" 
and in the footnotes to such tables.

Outstanding Equity Awards at Fiscal Year-End

Effective June 30, 2018, all outstanding TEP equity participation units under the Legacy LTIP were converted to equity 

participation shares at a ratio of 2.0 equity participation shares for each outstanding TEP equity participation unit. The 
following table reflects all outstanding equity awards of our named executive officers as of December 31, 2018.

Equity Participation Share Awards (1)

David G. Dehaemers, Jr. .................
William R. Moler ............................
Gary J. Brauchle..............................
Christopher R. Jones .......................
Gary D. Watkins..............................

Number of Equity
Participation Share
Awards That Have
Not Vested

Market Value of 
Equity Participation 
Share Awards That 
Have Not Vested (2)
—
705,860

326,156

10,178,988

4,512,636

$
—
29,000 (3) $
13,400 (4) $
418,200 (5) $
185,400 (6) $

Number of Unearned
Equity Participation
Shares That Have
Not Vested

Market or Payout 
Value of Unearned 
Equity Participation 
Shares That Have 
Not Vested (2)

— $
— $

— $

— $

— $

—
—

—

—

—

(1)  The award agreements pursuant to which the equity participation shares set forth above were granted provide for the 

settlement of the equity participation shares in Class A Shares.

(2)  Reflects the closing price of $24.34 per Class A share at December 31, 2018.

(3)  Mr. Moler holds 29,000 equity participation shares issued under the fifth category of awards described under 

"Elements of Compensation" above.

(4)  Mr. Brauchle holds 13,400 equity participation shares issued under the fifth category of awards described under 

"Elements of Compensation" above.

(5)  Mr. Jones holds 5,800, 35,000, 4,000, 180,000, 13,400, and 180,000 equity participation shares issued under the first, 
second, third, fourth, fifth, and sixth categories, respectively, as described under "Elements of Compensation" above.

(6)  Mr. Watkins holds 6,400, 35,000, 4,000, 70,000, and 70,000 equity participation shares issued under the first, second, 

third, fourth, and sixth categories, respectively, as described under "Elements of Compensation" above.

157

 
 
Vested LTIP Awards

The following table sets forth certain information regarding the vesting of LTIP Awards held by the Named Executive 
Officers granted under the Legacy LTIP prior to the June 30, 2018 effective date of the TEP Merger. No LTIP Awards held by 
the Named Executive Officers under the TGE LTIP vested during 2018 and no LTIP Awards held by the Named Executive 
Officers under the Legacy LTIP vested after June 30, 2018.

David G. Dehaemers, Jr.

President, Chief Executive Officer and Director

William R. Moler

Executive Vice President, Chief Operating Officer and Director

Gary J. Brauchle

Executive Vice President and Chief Financial Officer

Number of EPUs 
Acquired on 
Vesting (1)

Value Realized on 
Vesting (2)

— $

— $

— $

—

—

—

Christopher R. Jones

2,900

$

123,801

Executive Vice President, General Counsel and Secretary

Gary D. Watkins

Vice President and Chief Accounting Officer

3,200

$

136,608

(1)  Represents the gross number of EPUs that vested during the year ended December 31, 2018. The actual number of 

TEP common units delivered to the Named Executive Officers was, in some cases, less than the number shown in the 
above table due to the Named Executive Officers' option to net out TEP common units to cover a portion of applicable 
tax withholding obligations.

(2)  The stated value realized upon vesting is computed by multiplying the closing market price ($42.69) of TEP's common 

units on the date they vested (May 13, 2018) by the number of units that vested.

Pension Benefits

We sponsor a 401(k) plan that is available to all employees, but we do not maintain a pension or defined benefit program.

Nonqualified Deferred Compensation and Other Nonqualified Deferred Compensation Plans

We do not have a nonqualified deferred compensation plan or program for our officers or employees.

Employment Agreement 

On November 2, 2016, Mr. Dehaemers entered into a second amended and restated employment agreement with Tallgrass 
Management, our general partner, Tallgrass Energy Holdings, Tallgrass Equity and TEP's general partner, pursuant to which he 
agreed to serve as the President and Chief Executive Officer of our general partner. Under the terms of the employment 
agreement, Mr. Dehaemers is entitled to receive an annual salary of $300,000. In addition, Mr. Dehaemers is entitled to receive 
(i) benefits that are normally provided to senior executives of Tallgrass Management, (ii) reimbursement for all ordinary and 
necessary out-of-pocket expenses incurred by Mr. Dehaemers, and (iii) a policy of director and officer liability insurance. Mr. 
Dehaemers' employment is "at-will" and may be terminated at any time.

For a discussion of certain payments that Mr. Dehaemers may be entitled to upon the termination of his employment, 

please read "Potential Payments Upon Termination or a Change-in-Control."

Potential Payments upon Termination or Change-in-Control

Termination

The employment agreement for Mr. Dehaemers provides that in the event his employment is terminated without "cause" or 

in the event he resigns for "good reason" he will receive: (i) a severance payment equal to $900,000, payable in a lump sum 
within 60 days after the termination of his employment; and (ii) directors and officers liability insurance coverage for so long as 
he is subject to any claim arising from his employment by TGE and its Affiliates. In addition, upon any such termination, Mr. 
Dehaemers would receive payments related to his accrued and unpaid expenses, salary and benefits. Under Mr. Dehaemers' 
employment agreement:

158

 
• 

• 

"Cause" means (i) his conviction of, or plea of nolo contendere to, any crime or offense constituting a felony under 
applicable law; (ii) his commission of fraud or embezzlement against Tallgrass Management or certain of its affiliates; 
(iii) gross neglect by Mr. Dehaemers of, or gross or willful misconduct of Mr. Dehaemers in connection with the 
performance of, his duties that, if curable, is not cured within 30 days of receiving a written notice of such gross 
neglect or gross or willful misconduct; (iv) Mr. Dehaemers' willful failure or refusal to carry out the reasonable and 
lawful instructions of the board of managers of Tallgrass Energy Holdings, and, in each case, such failure or refusal 
has continued for a period of 30 calendar days following written notice; (v) Mr. Dehaemers' failure to perform the 
duties and responsibilities of his office as his primary business activity; (vi) a judicial determination that Mr. 
Dehaemers has breached his fiduciary duties with respect to Tallgrass Management or certain of its affiliates; or (vii) 
Mr. Dehaemers' willful and material breach of his obligations under the limited liability company agreements of 
Tallgrass Energy Holdings, our general partner, Tallgrass Equity and TEP GP, including willfully causing any 
applicable Tallgrass entity to take any material action prohibited by such organizational documents, that Mr. 
Dehaemers failed to cure, if curable, within 30 days following written notice thereof, specifically identifying such 
willful and material breach. 

"Good reason" means (i) a material diminution of Mr. Dehaemers' duties and responsibilities to Tallgrass Management 
or certain of its affiliates to a level inconsistent with those of a chief executive officer; (ii) a material reduction in Mr. 
Dehaemers' cash compensation or the aggregate welfare benefits provided to him (excluding any reduction that is not 
limited to him specifically); (iii) a willful or intentional breach of his employment agreement by Tallgrass 
Management; or (iv) a willful or intentional breach by our general partner or certain affiliates of Tallgrass 
Management of a material provision of the applicable operating agreements of such entities that has a material and 
adverse effect on Mr. Dehaemers.

Other than the payments to Mr. Dehaemers pursuant to his employment agreement as described above, we are not 

obligated to make any cash payment or provide any benefit to our Named Executive Officers if their employment is terminated 
by us or by the Named Executive Officer, other than the payment of accrued and unpaid expenses, salary and benefits. In 
addition, except for the acceleration of the 2017 Grants and 2018 Grants under the circumstances further described below, any 
LTIP Awards that have not vested and/or become exercisable are terminated upon the termination of such Named Executive 
Officer's employment.

Change in Control 

Employment Agreement. Upon a change in control, the employment agreement of Mr. Dehaemers generally does not 

provide for termination or severance benefits or payments in addition to those described above.

LTIP Award Agreements. In addition to the foregoing payments to Mr. Dehaemers pursuant to his employment agreement, 

the Legacy LTIP Awards and TGE LTIP Awards held by our Named Executive Officers other than the 2017 Grants and 2018 
Grants typically provide for acceleration of vesting in connection with a change in control. The LTIP Awards held by our 
Named Executive Officers other than the 2017 Grants and 2018 Grants vest and/or become exercisable in full upon a "change 
in control" of us or our general partner. The Blackstone Acquisition constitutes a change of control with respect to these LTIP 
Awards and as a result, any outstanding LTIP Awards to our Named Executive Officers other than the 2017 Grants and the 2018 
Grants will vest upon consummation of the Blackstone Acquisition.

Under the Plans, "change of control" means the occurrence of one or more of the following events:

• 

• 

• 

any Person or group, other than Tallgrass Energy Holdings or its affiliates, becomes the owner, by way of merger, 
consolidation, recapitalization, reorganization or otherwise, of 50% or more of (A) the combined voting power of the 
equity interests in our general partner or (B) the general partner interests in TGE; 

the limited partners of TGE approve, in one or a series of transactions, a plan of complete liquidation of TGE; or 

the sale or other disposition by TGE of all or substantially all of its assets in one or more transactions to any person 
other than our general partner an affiliate of our general partner. 

The 2017 Grants include accelerated vesting if either (i) both (A) a qualifying transaction occurs, and (B) Mr. Dehaemers 

ceases to be the Chief Executive Officer of our general partner or certain of its affiliates, or (ii) (A) Mr. Dehaemers ceases to be 
the Chief Executive Officer of our general partner or certain of its affiliates, and (B) the Named Executive Officer is thereafter 
terminated without cause. 

Under the award agreements for the 2017 Grants, a qualifying transaction means any transaction in which:

• 

a person other than certain designated persons directly or indirectly acquires direct or indirect ownership or control of 
50% or more of the voting interests in TEP's general partner, the ownership of 50% or more of the general partner 
interests in TEP, or the ownership of such other rights or interests that grant to the owner or holder thereof the ability 

159

to direct the management or policies of TEP, whether through the ownership of voting rights, by contract, or 
otherwise;

•  TEP's limited partners approve, in one or a series of transactions, a plan of complete liquidation of TEP; or

• 

the sale or other disposition by TEP of all or substantially all of its assets in one or more transactions to any person 
other than TEP's general partner and its affiliates.

The 2017 Grants do not vest solely as a result of the consummation of the Blackstone Acquisition.

The 2018 Grants to Mr. Jones include accelerated vesting if either (i) both (A) a qualifying transaction occurs, and (B) in 
connection with or within 12 months following such qualifying transaction, Mr. Dehaemers ceases to be the Chief Executive 
Officer of our general partner or certain of its affiliates, or (ii) (A) Mr. Dehaemers ceases to be the Chief Executive Officer of 
our general partner or certain of its affiliates, and (B) within 2 years after the occurrence of such event, Mr. Jones is terminated 
without cause. 

The 2018 Grants to Mr. Watkins include accelerated vesting if either (i) both (A) a qualifying transaction occurs, and (B) in 

connection with or within 12 months following such qualifying transaction, Mr. Dehaemers, Mr. Moler, Mr. Brauchle or Mr. 
Jones cease to comprise at least one of the roles of Chief Executive Officer, Chief Operating Officer, Chief Financial Officer or 
General Counsel of our general partner or certain of its affiliates, or (ii) (A) Mr. Dehaemers, Mr. Moler, Mr. Brauchle or Mr. 
Jones cease to comprise at least one of the roles of Chief Executive Officer, Chief Operating Officer, Chief Financial Officer or 
General Counsel of our general partner or certain of its affiliates, and (B) within 2 years after the occurrence of such event, Mr. 
Watkins is terminated without cause. 

Under the award agreements for the 2018 Grants, a qualifying transaction means any transaction in which:

• 

a person other than certain designated persons directly or indirectly acquires direct or indirect ownership or control of 
more than 50% of the voting interests in our general partner, the ownership of more than 50% of the general partner 
interests in TGE, or the ownership of such other rights or interests that grant to the owner or holder thereof the ability 
to direct the management or policies of TGE, whether through the ownership of voting rights, by contract, or 
otherwise, or if TGE becomes a corporation or limited liability company or if the limited partners of TGE become 
eligible to elect the members of the board of our general partner, the direct or indirect ability to appoint a majority of 
the board of directors of the corporation or limited liability company or the board of our general partner, as the case 
may be. 

•  TGE's limited partners approve, in one or a series of transactions, a plan of complete liquidation of TGE; or

• 

the sale or other disposition by TGE of all or substantially all of its assets in one or more transactions to any person 
other than our general partner and its affiliates.

The 2018 Grants do not vest solely as a result of the consummation of the Blackstone Acquisition.

The following table sets forth the value of outstanding LTIP Awards that would have vested and/or become exercisable for 

each of the Named Executive Officers under the Plans if a triggering change in control event described above occurred on 
December 31, 2018. 

David G. Dehaemers, Jr.

William R. Moler

Gary J. Brauchle

Christopher R. Jones

Gary D. Watkins

Upon a Change in 
Control (1)

$

$

$

$

$

—

705,860

326,156

10,178,988

4,512,636

(1)  The stated value upon a change in control is computed by assuming that a triggering change of control event occurred 
on December 31, 2018 and multiplying the closing market price ($24.34) of the Class A shares on such date by the 
number of Class A shares that would have vested.

160

 
Confidentiality, Non-Compete and Non-Solicitation Arrangements

Under the terms of Mr. Dehaemers's employment agreement, he has agreed not to compete with Tallgrass Management or 

certain of its affiliates and not to solicit Tallgrass Management's or any of its affiliates' employees or interfere with certain 
business relationships during the term of his employment and for one year thereafter. In addition, under the terms of the award 
agreements for the 2017 Grants and 2018 Grants, Mr. Jones and Mr. Watkins have agreed not to compete with our general 
partner and its affiliates for the period commencing on the grant date and ending upon the earlier of (i) if a vesting date occurs, 
18-months following termination of such person's employment, (ii) the date such LTIP Awards are forfeited without vesting, 
and (iii) the date such LTIP Awards expire. Each of the Named Executive Officers has signed a confidentiality agreement in 
connection with their employment by Tallgrass Management. 

Compensation of TGE Directors

Officers or employees of Tallgrass Energy Holdings or its affiliates, including certain directors affiliated with EMG or 
Kelso, who also serve as directors of our general partner do not receive additional compensation for such service. In 2018, 
those directors of our general partner who were not excluded from receiving compensation were paid cash compensation as 
follows:

•  Quarterly cash payments of $10,000, resulting in an effective annual cash payment of $40,000. 

• 

For serving as the conflicts committee chair, a quarterly committee chair cash payment of $5,000. 

In addition, Mr. Cook and Mr. Towner received compensation during the year ended December 31, 2018 for their service 

on the TEP board of directors prior to the TEP Merger. Mr. Cook and Mr. Towner were appointed as directors of our general 
partner on September 7, 2018.

All directors are also reimbursed for out-of-pocket expenses in connection with their service as directors, including costs 
incurred to attend meetings. Each director is fully indemnified by us for actions associated with being a director to the fullest 
extent permitted under Delaware law pursuant to our partnership agreement. Directors of our general partner are also eligible to 
receive grants under the Plans. 

The following table sets forth certain information with respect to our non-employee directors receiving cash compensation 

during the year ended December 31, 2018:

Name and Principal Position
Thomas A. Gerke ................................ $
Roy N. Cook ....................................... $
Terrance D. Towner............................. $
W. Curtis Koutelas (2)........................... $

Fees Earned

60,000

105,000

65,000

30,000

Equity 
Participation 
Share Awards (1)
$

— $

$

$

$

130,840

130,840

$

$

— $

Non-Equity
Incentive Plan
Compensation

— $

— $

— $

— $

Total

60,000

235,840

195,840

30,000

(1)  The amounts in this column include equity participation shares granted pursuant to the Plans. These amounts represent 
the aggregate grant date fair value determined in accordance with ASC Topic 718 for equity participation shares 
granted under the Plans. Pursuant to SEC rules, the amounts shown in the table above for awards subject to 
performance conditions are based on the probable outcome as of the date of grant and exclude the impact of estimated 
forfeitures. The EPSs are non-participating, therefore the grant date fair value is discounted from the grant date fair 
value of TGE's Class A shares, as appropriate, for the present value of the expected (but non-participating) future 
dividends during the vesting period. For additional information, see Note 16 – Equity-Based Compensation. These 
amounts do not correspond to the actual value that will be recognized by the directors.

(2)  Mr. Koutelas resigned from the board of directors of our general partner effective September 7, 2018.

Compensation Committee Interlocks and Insider Participation

The listing rules of the NYSE do not require us to maintain, and we do not maintain, a compensation committee.

Mr. Dehaemers, as President and Chief Executive Officer, and Mr. Moler, as Executive Vice President and Chief Operating 

Officer, participate in their capacity as a director of our general partner in the deliberations of the Board concerning executive 
officer compensation. In addition, Mr. Dehaemers makes recommendations to the board of directors regarding named executive 
officer compensation, but Mr. Dehaemers is not present for any discussions regarding his performance or compensation.

161

Compensation Report of the Board of Directors

The Board of Directors of our general partner has reviewed and discussed the compensation discussion and analysis 
contained in this Annual Report on Form 10-K with management and, based on that review and discussion, has recommended 
that the compensation discussion and analysis be included in this Annual Report for the year ended December 31, 2018 for 
filing with the SEC.

David G. Dehaemers, Jr.
William R. Moler
Frank J. Loverro
Stanley de J. Osborne
Jeffrey A. Ball
John T. Raymond
Thomas A. Gerke
Roy N. Cook
Terrance D. Towner

Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters 

Tallgrass Energy, LP 

The following tables set forth certain information regarding the beneficial ownership of our Class A shares and Class B 

shares as of February 6, 2019 owned by:

• 

• 

• 

• 

each person who is known to us to beneficially own more than 5% of the Class A shares (calculated in accordance 
with Rule 13d-3); 

the named executive officers of our general partner; 

each of the directors of our general partner; and 

all the directors and executive officers of our general partner as a group. 

All information with respect to beneficial ownership has been furnished by the respective directors, officers or 5% or more 

shareholders, as the case may be. The amounts and percentage of Class A shares and Class B shares beneficially owned are 
reported on the basis of SEC regulations governing the determination of beneficial ownership of securities. Under the rules of 
the SEC, a person is deemed to be a "beneficial owner" of a security if that person has or shares "voting power," which includes 
the power to vote or to direct the voting of such security, or "investment power," which includes the power to dispose of or to 
direct the disposition of such security. Except as indicated by footnote, the persons named in the table below have sole voting 
and investment power with respect to all Class A shares and Class B shares shown as beneficially owned by them, subject to 
community property laws where applicable. Unless otherwise noted, the address of each beneficial owner named in the chart 
below is 4200 W. 115th Street, Suite 350, Leawood, Kansas 66211, Attn: General Counsel.

162

Name and Address of Beneficial Owner

5% shareholders
Entities affiliated with Kelso (4)...........................................
Entities affiliated with EMG (5)...........................................
Tallgrass KC (6) ...................................................................
OppenheimerFunds, Inc. (7) .................................................
Tortoise Capital Advisors, L.L.C. (8)...................................
Kayne Anderson Capital Advisors, L.P. (9) .........................
Salient Capital Advisors LLC (10)........................................
Directors and named Executive officers:
David G. Dehaemers, Jr. (11)................................................
William R. Moler (12)...........................................................
Gary J. Brauchle (13) ............................................................
Christopher R. Jones (14)......................................................
Gary D. Watkins .................................................................
Frank J. Loverro (4) .............................................................
Stanley de J. Osborne (4)......................................................
Jeffrey A. Ball.....................................................................
John T. Raymond (15) ...........................................................
Thomas A. Gerke................................................................
Roy N. Cook .......................................................................
Terrance D. Towner ............................................................
All directors and executive officers of our general partner
as a group (11 persons) .......................................................

*  Less than 1%.

Class A and Class 
B shares 
Beneficially 
Owned (1)

Percentage of Class 
A and Class B 
shares Beneficially 
Owned (2)

Combined 
Voting Power (3)

46,727,603

46,386,232

29,416,692

26,697,437

24,224,847

8,822,918

7,847,848

31,504,182

2,903,053

2,328,812

358,978
46,830

46,727,603

46,727,603

100,000

46,833,283

54,300

116,165

53,000

23.01%

22.88%

15.83%

17.08%

15.49%

5.64%

5.02%

16.91%

1.82%

1.47%

*
*

23.01%

23.01%

*

23.1%

*

*

*

16.67%

16.55%

10.5%

9.53%

8.64%

3.15%

2.8%

11.24%

1.04%

*

*
*

16.67%

16.67%

*

16.71%

*

*

*

131,026,206

46.98%

46.75%

(1)  Pursuant to Rule 13d-3 under the Exchange Act, a person has beneficial ownership of a security as to which that person, 
directly or indirectly, through any contract, arrangement, understanding, relationship, or otherwise has or shares voting 
power and/or investment power of such security and as to which that person has the right to acquire beneficial ownership 
of such security within 60 days. In addition to Class A shares, this column includes Class B shares beneficially owned by 
such persons that are, together with a corresponding number of Tallgrass Equity Units, exchangeable at any time and from 
time to time for Class A shares on a one-for-one basis (subject to the terms of the Tallgrass Equity limited liability 
company agreement and our partnership agreement). See "Certain Relationships and Related Party Transactions, and 
Director Independence-Exchange Right."

(2)  The Class A shares to be issued upon the exchange of Class B shares and Tallgrass Equity Units as described in footnote 

(1) above are deemed to be outstanding and beneficially owned by the person holding the Class B shares for the purpose of 
computing the percentage of beneficial ownership of Class A shares for that person and any group of which that person is a 
member, but are not deemed outstanding for purpose of computing the percentage of beneficial ownership of any other 
person. As such, the percentage of Class A shares shown as being beneficially owned by each person is based on an 
assumption that each such person exchanged all of such person's Class B shares, together with a corresponding number of 
Tallgrass Equity Units, for Class A shares and that no other person made a similar exchange.

(3)  Represents the percentage of voting power of the Class A shares and Class B shares held by such person voting together as 

a single class.

(4)  Consists of Class B shares held of record by: (i) KIA VIII (Rubicon), L.P., a Delaware limited partnership, or KIA VIII, 
and (ii) KEP VI AIV (Rubicon), LLC, a Delaware limited liability company, or KEP VI AIV. KIA VIII and KEP VI AIV, 
due to their common control, could be deemed to beneficially own each of the other's shares. Each of KIA VIII and KEP 
VI AIV disclaim such beneficial ownership. Frank T. Nickell, Thomas R. Wall, IV, George E. Matelich, Michael B. 
Goldberg, David I. Wahrhaftig, Frank K. Bynum, Jr., Philip E. Berney, Frank J. Loverro, James J. Connors, II, Church M. 
Moore, Stanley de J. Osborne, Christopher L. Collins, A. Lynn Alexander, Howard A. Matlin, John K. Kim, Henry 

163

 
Mannix, III, Matthew S. Edgerton and Stephen C. Dutton (the "Kelso Individuals") may be deemed to share beneficial 
ownership of shares held of record or beneficially owned by KIA VIII and KEP VI AIV, by virtue of their status as 
managing members of KEP VI AIV and of Kelso GP VIII, LLC, a Delaware limited liability company, the principal 
business of which is serving as the general partner of KIA VIII (Rubicon) GP, L.P., a Delaware limited partnership, the 
principal business of which is serving as the general partner of KIA VIII. Each of Kelso GP VIII, LLC and KIA VIII 
(Rubicon) GP, L.P. due to their common control, could be deemed to beneficially own each other's securities and the shares 
held of record or beneficially owned by KIA VIII and KEP VI AIV. Kelso GP VIII, LLC disclaims beneficial ownership of 
all the securities owned of record, or deemed beneficially owned, by KIA VIII (Rubicon) GP, L.P., KIA VIII and KEP VI 
AIV, except to the extent, if any, of its pecuniary interest therein, and the inclusion of these securities in the table above 
shall not be deemed an admission of beneficial ownership of all the reported securities for any purpose. KIA VIII 
(Rubicon) GP, L.P. disclaims beneficial ownership of all of the securities owned of record, or deemed beneficially owned, 
by Kelso GP VIII, LLC, KIA VIII and KEP VI AIV, except to the extent, if any, of its pecuniary interest therein, and the 
inclusion of these securities in the table above shall not be deemed an admission of beneficial ownership of all the reported 
securities for any purpose. The Kelso Individuals may be deemed to share beneficial ownership of securities owned of 
record or beneficially owned by Kelso GP VIII, LLC, KIA VIII (Rubicon) GP, L.P., KIA VIII and KEP VI AIV, by virtue 
of their status as managing members of Kelso GP VIII, LLC and KEP VI AIV, but disclaim beneficial ownership of such 
securities, and the inclusion of these securities in the table above shall not be deemed an admission that any of the Kelso 
Individuals is the beneficial owner of these securities for any purposes. Frank J. Loverro, who serves as a Managing 
Director and Co-Chief Executive Officer of Kelso & Company, which manages the investments in KIA VIII, KEP VI AIV, 
is one of our directors. Stanley de J. Osborne, who serves as a Managing Director of Kelso & Company, is also one of our 
directors. The business address for these persons is c/o Kelso & Company, 320 Park Avenue, 24th Floor, New York, NY 
10022.

(5)  Consists of Class B shares held of record by Tallgrass Holdings, LLC. The manager of Tallgrass Holdings, LLC is EMG 
Fund II Management, LP. EMG Fund II Management, LP's general partner is EMG Fund II Management, LLC. John T. 
Raymond, who serves as one of our directors, is the sole member of EMG Fund II Management, LLC and as such, has sole 
voting and dispositive power with respect to the shares held by Tallgrass Holdings, LLC; however, he disclaims beneficial 
ownership of those shares except to the extent of his pecuniary interest therein. The address for Tallgrass Holdings, LLC is 
The Energy & Minerals Group, 2229 San Felipe, Suite 1300, Houston, Texas 77019.

(6)  Consists of Class B shares held of record by Tallgrass KC. David G. Dehaemers, Jr. has sole voting and dispositive power 
with respect to the Class B shares held by Tallgrass KC; however, he disclaims beneficial ownership of those shares except 
to the extent of his pecuniary interest therein.

(7)  As reported on Schedule 13G filed with the SEC on January 18, 2019. The business address for this person is Two World 

Financial Center, 225 Liberty Street, New York, New York 10281.

(8)  As reported on Schedule 13G filed with the SEC on August 9, 2018. Tortoise Capital Advisors, L.L.C. ("TCA") acts as an 
investment advisor to certain investment companies registered under the Investment Company Act of 1940. TCA, by virtue 
of investment advisory agreements with these investment companies, has all investment and voting power over securities 
owned of record by these investment companies. However, despite their delegation of investment and voting power to 
TCA, these investment companies may be deemed to be the beneficial owner under Rule 13d-3 of the Act, of the securities 
they own of record because they have the right to acquire investment and voting power through termination of their 
investment advisory agreement with TCA. Thus, TCA has reported on the Schedule 13G that it shares voting power and 
dispositive power over the securities owned of record by these investment companies. TCA also acts as an investment 
adviser to certain managed accounts. Under contractual agreements with these managed account clients, TCA, with respect 
to the securities held in these client accounts, has investment and voting power with respect to certain of these client 
accounts, and has investment power but no voting power with respect to certain other of these client accounts.  TCA has 
reported on the Schedule 13G that it shares voting and/or investment power over the securities held by these client 
managed accounts despite a delegation of voting and/or investment power to TCA because the clients have the right to 
acquire investment and voting power through termination of their agreements with TCA. TCA may be deemed the 
beneficial owner of the securities covered by the Schedule 13G under Rule 13d-3 of the Act that are held by its clients. The 
business address for this person is 11550 Ash Street, Suite 300, Leawood, Kansas 66211.

(9)  As reported on Schedule 13G filed with the SEC on February 1, 2019. Kayne Anderson Capital Advisors, L.P. is the 

general partner (or general partner of the general partner) of the limited partnerships and investment adviser to the other 
accounts. Richard A. Kayne is the controlling shareholder of the corporate owner of Kayne Anderson Investment 
Management, Inc., the general partner of Kayne Anderson Capital Advisors, L.P. Mr. Kayne is also a limited partner of 
each of the limited partnerships and a shareholder of the registered investment company. Kayne Anderson Capital 
Advisors, L.P. disclaims beneficial ownership of the shares reported, except those shares attributable to it by virtue of its 
general partner interests in the limited partnerships. Mr. Kayne disclaims beneficial ownership of the shares reported, 

164

except those shares held by him or attributable to him by virtue of his limited partnership interests in the limited 
partnerships, his indirect interest in the interest of Kayne Anderson Capital Advisors, L.P. in the limited partnerships, and 
his ownership of common stock of the registered investment company. The business address for these persons is 1800 
Avenue of the Stars, Second Floor, Los Angeles California 90067.

(10)  As reported on Schedule 13G filed with the SEC on April 10, 2017. The business address for this person is 4265 San 

Felipe, 8th Floor, Houston, TX 77027.

(11)  Consists of (i) 29,416,692 Class B shares held of record by Tallgrass KC, (ii) 281,171 Class B shares held indirectly 
through the David G. Dehaemers, Jr. Revocable Trust, dated April 26, 2006 (the "Dehaemers Trust"), for which Mr. 
Dehaemers serves as Trustee and (iii) 1,806,319 Class A shares held indirectly through the Dehaemers Trust. Mr. 
Dehaemers has sole voting and dispositive power with respect to the shares held by Tallgrass KC; however, he disclaims 
beneficial ownership of those shares except to the extent of his pecuniary interest therein.

(12)  Consists of (i) 1,403,765 Class B shares held of record by Tallgrass KC and (ii) 1,499,288 Class A shares held indirectly 

through the William R. Moler Revocable Trust U.T.A. dated August 27, 2013 ("Moler Trust"), for which Mr. Moler serves 
as Trustee. Mr. Moler indirectly holds a membership interest in Tallgrass KC through the Moler Trust, that includes 
1,403,765 TEGP Tracking Units. Pursuant to Tallgrass KC's limited liability company agreement, Mr. Moler is permitted to 
exchange his TEGP Tracking Units in Tallgrass KC for an equivalent number of Class A shares of TGE.

(13)  Consists of (i) 2,183,636 Class B shares held of record by Tallgrass KC and (ii) 145,176 Class A shares held indirectly 

through the Brauchle Revocable Trust, under a trust agreement dated April 10, 2014, for which Mr. Brauchle serves as a 
Trustee (the "Brauchle Trust"). Mr. Brauchle indirectly holds a membership interest in Tallgrass KC through the Brauchle 
Trust, that includes 2,183,636 TEGP Tracking Units. Pursuant to Tallgrass KC's limited liability company agreement, Mr. 
Brauchle is permitted to exchange his TEGP Tracking Units in Tallgrass KC for an equivalent number of Class A shares of 
TGE.

(14)  Consists of (i) 311,948 Class B shares held of record by Tallgrass KC and (ii) 47,030 Class A shares held directly by Mr. 
Jones. Mr. Jones holds a membership interest in Tallgrass KC that includes 311,948 TEGP Tracking Units. Pursuant to 
Tallgrass KC's limited liability company agreement, Mr. Jones is permitted to exchange his TEGP Tracking Units in 
Tallgrass KC for an equivalent number of Class A shares of TGE.

(15)  Consists of (i) 46,386,232 Class B shares held of record by Tallgrass Holdings, LLC and (ii) 447,051 Class A shares held 
directly by John T. Raymond. The manager of Tallgrass Holdings, LLC is EMG Fund II Management, LP. EMG Fund II 
Management, LP's general partner is EMG Fund II Management, LLC. John T. Raymond, who serves as one of our 
directors, is the sole member of EMG Fund II Management, LLC and as such, has sole voting and dispositive power with 
respect to the shares held by Tallgrass Holdings, LLC; however, he disclaims beneficial ownership of those shares except 
to the extent of his indirect pecuniary interest therein.

Securities Authorized for Issuance Under Equity Compensation Plans

The following table provides information about our Class A shares that may be issued under equity compensation plans as 

of December 31, 2018:

Plan Category

Equity compensation plans approved by
security holders

Equity compensation plans not approved by 
security holders (2)
Total

(a)
 Number of securities
 to be issued
 upon exercise of
 outstanding options,
 warrants and rights

(b)
 Weighted average
 grant date fair value of
 outstanding options,
 warrants and rights

(c)
 Number of securities
 remaining available
 for future issuance
 under equity
 compensation plans
 (excluding securities
 reflected in column (a))

3,049,644 (1) $

—

3,049,644

$

$

18.25

—

18.25

17,735,121

—

17,735,121

 (1)  Amounts shown represent equity participation share awards outstanding under the Plans as of December 31, 2018. The 
outstanding awards will be settled in Class A shares pursuant to the terms of the award agreements and are not subject 
to an exercise price.

 (2)  There are no equity compensation plans in place pursuant to which Class A shares may be issued except for the Plans.

For additional information regarding the Plans, see Note 16 – Equity-Based Compensation to our Consolidated Financial 

Statements in Item 8.—Financial Statements and Supplementary Data of this Annual Report.

165

Item 13. Certain Relationships and Related Transactions, and Director Independence 

We are a Delaware limited partnership formed in February 2015. Although we were formed as a limited partnership, we 

have elected to be taxed as a corporation for U.S. federal income tax purposes. 

Limited Liability Company Agreement of Tallgrass Equity 

As of February 8, 2019, we own Tallgrass Equity units representing 55.79% of the membership interests in Tallgrass 
Equity. In accordance with the Tallgrass Equity limited liability company agreement, the net profits and net losses of Tallgrass 
Equity will generally be allocated to the holders of Tallgrass Equity units on a pro rata basis in accordance with their relative 
number of Tallgrass Equity units held. Accordingly, net profits and losses of Tallgrass Equity are currently allocated 55.79% to 
us and 44.21% to the Exchange Right Holders with respect to their Tallgrass Equity units. If we cause a distribution to be made, 
such distribution will be made to the holders of Tallgrass Equity units on a pro rata basis in accordance with their relative 
number of Tallgrass Equity units held. 

For purposes of any transfer or exchange of Tallgrass Equity units initially owned by the Exchange Right Holders and our 

Class B shares, the Tallgrass Equity limited liability company agreement and our partnership agreement contain provisions 
linking each such Tallgrass Equity unit with one of our Class B shares. Our Class B shares cannot be transferred without 
transferring an equal number of Tallgrass Equity units and vice versa. 

The Exchange Right Holders and any permitted transferees of their Tallgrass Equity units each have the right to exchange 

all or a portion of their Tallgrass Equity units into Class A shares at an exchange ratio of one Class A share for each Tallgrass 
Equity unit exchanged. The above Exchange Right may be exercised only if, simultaneously therewith, an equal number of our 
Class B shares are transferred by the exercising party to us. 

The above mechanisms are subject to customary conversion rate adjustments for equity splits, equity dividends and 

reclassifications. 

In addition, pursuant to our partnership agreement and the Tallgrass Equity limited liability company agreement, our 

capital structure and the capital structure of Tallgrass Equity generally replicate one another and provide for customary 
antidilution mechanisms in order to maintain the one-for-one exchange ratio between the Tallgrass Equity units and Class B 
shares, on the one hand, and our Class A shares, on the other hand. 

TGE Omnibus Agreement 

In connection with the closing of the TGE IPO, we, our general partner, Tallgrass Equity and Tallgrass Energy Holdings 

entered into the TGE Omnibus Agreement, that addresses the following matters: 

•  Tallgrass Equity's obligation to reimburse Tallgrass Energy Holdings and its affiliates for expenses incurred (i) on our 
behalf, (ii) on behalf of our general partner and (iii) for any other purposes related to our business and activities or 
those of our general partner, including our public company expenses and general and administrative expenses; and 

•  Our use of the name "Tallgrass" and any associated or related marks. 

Pursuant to the TGE Omnibus Agreement, Tallgrass Energy Holdings may perform, or cause its affiliates to perform, 

centralized general and administrative services for TGE, such as accounting, audit, business development, corporate record 
keeping, treasury services (including cash management), real property/land, legal, operations/engineering, investor relations, 
risk management, commercial/marketing, information technology, insurance, government relations/compliance, tax, payroll, 
human resources and environmental, health and safety. In exchange, Tallgrass Equity reimburses Tallgrass Energy Holdings 
and its affiliates for their expenses to the extent incurred on our behalf in providing these services. All reimbursements to our 
general partner, Tallgrass Energy Holdings and their respective affiliates by Tallgrass Equity will proportionally reduce cash 
distributions by Tallgrass Equity to its members, which in turn will reduce the amount of cash we distribute to our Class A 
shareholders. 

Effective January 1, 2018, these costs are incurred by Tallgrass Equity directly. For the years ended December 31, 2017 

and 2016, Tallgrass Equity reimbursed Tallgrass Management and its affiliates $2.0 million pursuant to the TGE Omnibus 
Agreement. 

TEP Omnibus Agreement 

In May 2013, TEP entered into an Omnibus Agreement with Tallgrass Equity (as successor to Tallgrass Development), 
Tallgrass Energy Holdings, and TEP GP, which we refer to as the TEP Omnibus Agreement, that governs TEP's relationship 
with them regarding the following matters: 

• 

the provision by Tallgrass Energy Holdings to TEP of certain administrative services and TEP's agreement to 
reimburse it for such services; 

166

• 

the provision by Tallgrass Energy Holdings of such employees as may be necessary to operate and manage TEP's 
business, and TEP's agreement to reimburse it for the expenses associated with such employees; 

• 

certain indemnification obligations; and

•  TEP's use of the name "Tallgrass" and related marks. 

Pursuant to the TEP Omnibus Agreement, Tallgrass Energy Holdings may perform, or causes its affiliates to perform, 
centralized corporate, general and administrative services for TEP, such as legal, corporate record keeping, planning, budgeting, 
regulatory, accounting, billing, business development, treasury, insurance administration and claims processing, risk 
management, health, safety and environmental, information technology, human resources, investor relations, cash management 
and banking, payroll, internal audit, taxes and engineering. In exchange, TEP reimburses Tallgrass Energy Holdings and its 
affiliates for their expenses to the extent incurred on TEP's behalf in providing these services. 

Exchange Right 

The Exchange Right Holders and any permitted transferees of their Tallgrass Equity units each have the right to exchange 

all or a portion of their Tallgrass Equity units into Class A shares at an exchange ratio of one Class A share for each Tallgrass 
Equity unit exchanged, which we refer to as the Exchange Right. The Exchange Right may be exercised only if, simultaneously 
therewith, an equal number of our Class B shares are transferred by the exercising party to us. Upon such exchange, we will 
cancel the Class B shares received from the exercising party. 

For purposes of any transfer or exchange of Tallgrass Equity units initially owned by the Exchange Right Holders and our 

Class B shares, the Tallgrass Equity limited liability company agreement and our partnership agreement contain provisions 
effectively linking one Tallgrass Equity unit with one of our Class B shares. Class B shares cannot be transferred without 
transferring an equal number of Tallgrass Equity units and vice versa. In connection with the Secondary Offering completed in 
November 2016, the participating Exchange Right Holders exercised their Exchange Right with respect to a total of 10,350,000 
Tallgrass Equity units and an equal number of Class B shares. In addition, during the year ended December 31, 2018, 2,821,332 
Class A shares were issued and an equal number of Class B shares were cancelled as a result of the exercise of the Exchange 
Right. 

The above mechanisms are subject to customary conversion rate adjustments for equity splits, equity dividends and 

reclassifications. 

Registration Rights Agreement 

In connection with the closing of the TGE IPO, we entered into a shareholder and registration rights agreement, which we 

refer to as the registration rights agreement, with certain of the Exchange Right Holders. Pursuant to the registration rights 
agreement, we agreed to register the resale of 109,504,440 Class A shares issuable upon exercise of the Exchange Right held by 
the Exchange Right Holders or any of their permitted transferees to the registration rights agreement under certain 
circumstances. In addition, we agreed to register the 27,554,785 Class A shares issuable upon the exercise of the Exchange 
Right with respect to 27,554,785 Tallgrass Equity units and Class B shares, respectively, issued in connection with the 
acquisition of the 25.01% membership interest in Rockies Express and the 5,619,218 additional TEP common units acquired by 
Tallgrass Equity in February 2018. We refer to such Class A shares issuable upon exercise of the Exchange Right as the 
Registrable Securities. 

In accordance with our obligations under the registration rights agreement, we have registered the resale of 125,291,659 
Class A shares issuable upon exercise of the Exchange Right pursuant to our Form S-3 (File No. 333-225382) filed with the 
SEC on June 1, 2018, which became effective June 13, 2018. We are required to maintain the effectiveness of such registration 
statement until the date on which all Registrable Securities covered by the shelf registration statement have been sold 
thereunder in accordance with the plan and method of distribution disclosed in the annual report included in the shelf 
registration statement, or otherwise cease to be Registrable Securities under the registration rights agreement. 

Demand and Piggyback Rights 

The Exchange Right Holders have the right to require that we register their Registrable Securities and/or facilitate an 
underwritten offering of their Registrable Securities. There is no aggregate limit on the number of such demand requests; 
however, the demand rights of these holders are subject to a number of size, frequency and other limitations. In November 
2016, EMG and Kelso exercised this "demand" registration right under the registration rights agreement and together with the 
other participating Exchange Right Holders, sold 10,350,000 Class A Shares in the Secondary Offering that closed on 
November 22, 2016. For a period of 120 days following the closing of the Secondary Offering, the participating Exchange 
Right Holders were not permitted to exchange any of their Tallgrass Equity units pursuant to the terms of the underwriting 
agreement.

167

In the event we propose to conduct an underwritten offering of Registrable Securities, then the holders of Registrable 
Securities will generally have customary rights to participate in such offering, subject to customary offering size limitations and 
related allocation provisions and other limitations. Similarly, in the event that eligible holders demand that we conduct an 
underwritten offering of their Registrable Securities, then we will generally have customary rights to participate in such 
offering, subject to customary offering size limitations and related allocation provisions and other limitations. 

Delay Rights 

We will not be required to comply with any demand request, and may suspend the holders' ability to use any shelf 

registration statement, following our delivery of written notice to the holders of customary blackout periods and deferral events. 

Expenses 

The holders of Registrable Securities will pay certain selling expenses, including any underwriters' discounts and 

commissions. We will generally cause Tallgrass Equity to pay all other registration expenses in connection with our obligations 
under the registration rights agreement. 

Pursuant to the terms of the registration rights agreement discussed above, the Company was obligated to cause Tallgrass 

Equity to pay all fees and expenses related to the Secondary Offering, excluding certain selling expenses, including any 
underwriters' discounts and commissions. The Company did not receive any proceeds from the sale of Class A shares in the 
Secondary Offering. The total expenses paid by Tallgrass Equity in connection with the Secondary Offering, and associated 
filings, were approximately $1.0 million.

Other Transactions

In January 2018, we entered into an agreement to acquire a 51% membership interest in the Pawnee, Colorado crude oil 
terminal ("Pawnee Terminal") from Zenith Energy Terminals Holdings, LLC for cash consideration of approximately $30.6 
million. The transaction closed on April 1, 2018. Kelso owns an indirect equity interest in Zenith Energy Terminals Holdings, 
LLC.

Effective February 1, 2018, TEP acquired the remaining 2% membership interest in Pony Express, along with 

administrative assets consisting primarily of information technology assets, from Tallgrass Development for cash consideration 
of approximately $60 million, bringing its aggregate membership interest in Pony Express to 100%.

On February 7, 2018, Tallgrass Development merged into Tallgrass Development Holdings, a wholly-owned subsidiary of 
Tallgrass Equity, and as a result of the merger, Tallgrass Equity acquired a 25.01% membership interest in Rockies Express and 
an additional 5,619,218 TEP common units. As consideration for the acquisition, TGE and Tallgrass Equity issued 27,554,785 
TGE Class B shares and Tallgrass Equity units, valued at approximately $644.8 million based on the closing price on February 
6, 2018, to the limited partners of Tallgrass Development.

In August 2018, we entered into an agreement with Silver Creek to expand the Iron Horse joint venture through the 
contribution by us and Silver Creek of cash and additional Powder River Basin assets. These additional contributions closed in 
January 2019. The expanded joint venture operates under the name Powder River Gateway, LLC, and owns the Iron Horse 
Pipeline, the PRE Pipeline, a 70-mile crude oil pipeline that transports crude oil from the Powder River Basin to Guernsey, 
Wyoming, and crude oil terminal facilities in Guernsey, Wyoming. Effective January 1, 2019, we own a 51% membership 
interest in Powder River Gateway and continue to operate the joint venture, while Silver Creek owns a 49% membership 
interest. EMG owns an indirect equity interest in Silver Creek. 

Procedures for Review, Approval or Ratification of Transactions with Related Persons 

The board of directors of our general partner has adopted a related party transactions policy (the "Policy"), which 

supplements the conflict of interest provisions in our code of business conduct and ethics. According to the Policy, a "Related 
Party Transaction" is an actual or proposed transaction, arrangement or relationship (or any series of similar transactions, 
arrangements or relationships) in which (a) the Partnership, our general partner or Tallgrass Equity (collectively, the 
"Partnership Group") was, is or will be a participant, (b) the amount involved exceeds $120,000, and (c) in which any Related 
Party had, has or will have a direct or indirect material interest. The Policy's definition of a "Related Party" is in line with the 
definition set forth in the instructions to Item 404(a) of Regulation S-K promulgated by the SEC. Transactions resolved under 
the conflicts provisions of our partnership agreement are not required to be reviewed or approved under the policy.

Under the Policy, the General Counsel and Chief Financial Officer or Chief Accounting Officer are responsible for 
determining whether a Related Party Transaction requires the approval of the Audit Committee. The Audit Committee is 
responsible for evaluating and assessing a proposed transaction based on the relevant facts and circumstances, including 
comparing the terms of the proposed transaction to the terms available to unrelated third parties. The Audit Committee shall 
approve only those Related Party Transactions that are either (i) on terms no less favorable to the Partnership Group than those 

168

generally being provided to or available from unrelated third parties or (ii) are fair and reasonable to the Partnership Group, 
taking into account the totality of the relationships between the parties involved. 

If the General Counsel determines it is impractical or undesirable to wait until an Audit Committee meeting to consummate 

a Related Party Transaction, the chairman of the Audit Committee may review and approve the Related Party Transaction in 
accordance with the procedures set forth in the Policy. However, any such approval (and its rationale) must be reported to the 
Audit Committee at the next regularly scheduled meeting. A Related Party Transaction entered into without pre-approval of the 
Audit Committee shall not be deemed to violate the Policy, or be invalid or unenforceable, so long as the transaction is brought 
to the Audit Committee as promptly as reasonably practical after it is entered into and is subsequently ratified by the Audit 
Committee. If the Audit Committee determines not to ratify a Related Party Transaction that has been commenced without 
approval, the Audit Committee may direct the immediate discontinuation or rescission of the transaction, or modify the 
transaction to make it acceptable for ratification.

Director Independence

The information required by Item 407(a) of Regulation S-K is included in Item 10.—Directors, Executive Officers and 

Corporate Governance.

Item 14. Principal Accounting Fees and Services

We have engaged PricewaterhouseCoopers LLP as our independent registered public accounting firm. The following table 

summarizes fees we were billed by PricewaterhouseCoopers LLP (or included in TD's general and administrative expense 
allocation to us) for independent auditing, tax and related services for each of the last two fiscal years:

Audit fees (1) ..................................................................................................
Audit related fees (2).......................................................................................
Tax fees (3)......................................................................................................
Total...............................................................................................................

$

$

Year Ended December 31,

2018

2017

(in thousands)

1,935

$

—

520

2,455

$

1,843

—

611

2,454

(1)  Audit fees represent amounts billed for each of the years presented for professional services rendered in connection 
with (i) the integrated audit of our annual financial statements and internal control over financial reporting, (ii) the 
review of our quarterly financial statements or (iii) those services normally provided in connection with statutory and 
regulatory filings or engagements including comfort letters, consents and other services related to SEC matters. This 
information is presented as of the latest practicable date for this Annual Report.

(2)  Audit-related fees represent amounts we were billed in each of the years presented for assurance and related services 
that are reasonably related to the performance of the annual audit or quarterly reviews of our financial statements and 
are not reported under audit fees.

(3)  Tax fees represent amounts we were billed in each of the years presented for professional services rendered in 

connection with tax compliance, tax advice and tax planning.

All services provided by our independent registered public accountant are subject to pre-approval by the audit committee 

of our general partner. The audit committee of our general partner is informed of each engagement of the independent 
registered public accountant to provide services under the policy. The audit committee of our general partner has approved the 
use of PricewaterhouseCoopers LLP as our independent registered public accounting firm, including all services rendered for 
the year ended December 31, 2018.

169

 
PART IV

Item 15. Exhibits, Financial Statement Schedules

(1) 

Financial Statements

Consolidated Financial Statements included in this Item 15:

Financial Statements of Rockies Express Pipeline LLC

170

 
 
  FINANCIAL STATEMENTS

  ROCKIES EXPRESS
  PIPELINE LLC

  For the years ended December 31, 2018, 2017 and 2016

171

 
 
 
 
Report of Independent Registered Public Accounting Firm

To the Board of Directors of Rockies Express Pipeline LLC

We have audited the accompanying financial statements of Rockies Express Pipeline LLC, which comprise the balance sheets as 
of December 31, 2018 and 2017, and the related statements of income, members' equity, and cash flows for each of the three years 
in the period ended December 31, 2018.  

Management's Responsibility for the Financial Statements

Management is responsible for the preparation and fair presentation of the financial statements in accordance with accounting 
principles generally accepted in the United States of America; this includes the design, implementation, and maintenance of internal 
control relevant to the preparation and fair presentation of financial statements that are free from material misstatement, whether 
due to fraud or error.

Auditors' Responsibility

Our responsibility is to express an opinion on the financial statements based on our audits.  We conducted our audits in accordance 
with auditing standards generally accepted in the United States of America.  Those standards require that we plan and perform the 
audit to obtain reasonable assurance about whether the financial statements are free from material misstatement.  

An audit involves performing procedures to obtain audit evidence about the amounts and disclosures in the financial statements.  
The procedures selected depend on our judgment, including the assessment of the risks of material misstatement of the financial 
statements, whether due to fraud or error.  In making those risk assessments, we consider internal control relevant to the Company's 
preparation  and  fair  presentation  of  the  financial  statements  in  order  to  design  audit  procedures  that  are  appropriate  in  the 
circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Company's internal control.  Accordingly, 
we  express  no  such  opinion.    An  audit  also  includes  evaluating  the  appropriateness  of  accounting  policies  used  and  the 
reasonableness of significant accounting estimates made by management, as well as evaluating the overall presentation of the 
financial statements.  We believe that the audit evidence we have obtained is sufficient and appropriate to provide a basis for our 
audit opinion.

Opinion

In our opinion, the financial statements referred to above present fairly, in all material respects, the financial position of Rockies 
Express Pipeline LLC as of December 31, 2018 and 2017, and the results of its operations and its cash flows for each of the three 
years in the period ended December 31, 2018, in accordance with accounting principles generally accepted in the United States 
of America.

Emphasis of Matters

As described in Note 6 to the financial statements, the Company has significant transactions with related parties. 

As discussed in Notes 2 and 7 to the financial statements, the Company changed the manner in which it accounts for revenue in 
2018.

Our opinion is not modified with respect to these matters.

/s/ PricewaterhouseCoopers LLP

Denver, Colorado
February 8, 2019

172

ROCKIES EXPRESS PIPELINE LLC
BALANCE SHEETS

December 31,

2018

2017

(in millions)

Current Assets:

ASSETS

Cash and cash equivalents ..................................................................................... $
Accounts receivable, net........................................................................................
Gas imbalances......................................................................................................
Current portion of contract asset ...........................................................................
Other current assets ...............................................................................................
Total Current Assets..........................................................................................
Property, plant and equipment, net.............................................................................
Contract asset .............................................................................................................
Deferred charges and other assets ..............................................................................
Total Noncurrent Assets....................................................................................

1.1

$

76.8

7.4

31.8

3.6

120.7

5,759.0

157.0

15.2

5,931.2

Total Assets................................................................................................................. $

6,051.9

$

Current Liabilities:

LIABILITIES AND EQUITY

Accounts payable................................................................................................... $
Accrued interest.....................................................................................................
Accrued taxes ........................................................................................................
Current portion of long-term debt .........................................................................
Accrued other current liabilities ............................................................................
Total Current Liabilities....................................................................................

Long-term Liabilities and Deferred Credits:

Long-term debt, net ...............................................................................................
Other long-term liabilities and deferred credits.....................................................
Total Long-term Liabilities and Deferred Credits ............................................

Commitments and Contingencies

Members' Equity:

$

21.0

39.0

81.8

525.0

23.6

690.4

1,492.7

10.2

1,502.9

Members' equity ....................................................................................................
Total Liabilities and Members' Equity ....................................................................... $

3,858.6
6,051.9

$

25.7

75.8

6.3

—

14.6

122.4

5,939.2

—

11.8

5,951.0

6,073.4

20.3

56.3

60.0

550.0

27.4

714.0

2,014.8

34.5

2,049.3

3,310.1
6,073.4

The accompanying notes are an integral part of these financial statements.
173

ROCKIES EXPRESS PIPELINE LLC
STATEMENTS OF INCOME

Years Ended December 31,

2018

2017
(in millions)

2016

Revenues:

Transportation services........................................................................ $
Natural gas sales ..................................................................................
Total Revenues................................................................................

Operating Costs and Expenses:

Cost of transportation services ............................................................
Cost of natural gas sales ......................................................................
Operations and maintenance................................................................
Depreciation and amortization ............................................................
General and administrative..................................................................
Taxes, other than income taxes............................................................
Total Operating Costs and Expenses ..............................................
Operating Income .....................................................................................

907.7

$

839.6

$

6.9

914.6

32.3

5.0

27.0

219.6

28.2

85.3

397.4

517.2

9.6

849.2

29.8

7.3

25.3

218.4

30.5

65.3

376.6

472.6

Other (Expense) Income:

Interest expense, net ............................................................................
Gain on litigation settlement ...............................................................
Other income, net ................................................................................
Total Other Expense, net.................................................................

Net Income to Members ........................................................................... $

(150.0)
—

2.3
(147.7)
369.5

$

(168.0)
150.0

3.4
(14.6)
458.0

$

715.1

—

715.1

26.5

—

24.8

204.3

39.9

71.9

367.4

347.7

(158.6)
61.7

27.7
(69.2)
278.5

The accompanying notes are an integral part of these financial statements.
174

ROCKIES EXPRESS PIPELINE LLC
STATEMENTS OF MEMBERS' EQUITY

Rockies
Express
Holdings,
LLC

Total

TEP REX
Holdings,
LLC
(in millions)

Sempra REX
Holdings,
LLC

 P66 REX
LLC

Members' Equity:

Balance at January 1, 2016 ........................ $
Net Income to Members ..........................
Contributions from Members ..................
Distributions to Members ........................
Transfer of equity interest........................
Balance at December 31, 2016 .................. $
Net Income to Members ..........................
Contributions from Members ..................
Distributions to Members ........................
Transfer of equity interest (see Note 1) ...
Balance at December 31, 2017 .................. $

Cumulative effect of ASC 606
implementation ........................................
Net Income to Members ..........................
Contributions from Members ..................
Distributions to Members ........................
Transfer of equity interest (see Note 1) ...
Balance at December 31, 2018 .................. $

3,318.2

$

1,659.0

$

— $

829.6

$

278.5

304.9

(471.6)

—

139.3

152.5
(235.8)
—

42.6

50.0
(75.9)
840.8

27.0

26.2
(42.0)
(840.8)

3,430.0

$

1,715.0

$

857.5

$

— $

458.0

92.0

(669.9)

—

3,310.1

$

125.2

369.5

576.5

(522.7)

—

131.1

29.7
(197.6)
(850.3)
827.9

51.0

44.9

1.6
(63.7)
(861.7)

212.4

39.3
(304.8)
850.3

—

—

—

—

$

1,654.7

$

— $

42.9

232.2

430.7
(328.4)
861.7

—

—

—

—

—

3,858.6

$

— $

2,893.8

$

— $

829.6

69.6

76.2
(117.9)
—

857.5

114.5

23.0
(167.5)
—

827.5

31.3

92.4

144.2
(130.6)
—

964.8

The accompanying notes are an integral part of these financial statements.
175

ROCKIES EXPRESS PIPELINE LLC
STATEMENTS OF CASH FLOWS

Cash Flows from Operating Activities:

Net income to Members ...................................................................... $
Adjustments to reconcile net income to net cash flows provided by
operating activities:

Depreciation and amortization........................................................
Change in contract asset .................................................................

Changes in components of working capital:

Accounts receivable........................................................................
Current regulatory assets and liabilities, net...................................
Accounts payable and accrued other current liabilities ..................
Accrued taxes..................................................................................
Other current assets and liabilities..................................................
Return of customer deposits ................................................................
Receipt of customer deposits...............................................................
Other operating, net .............................................................................
Net Cash Provided by Operating Activities .............................................
Cash Flows from Investing Activities:

Capital expenditures ............................................................................
Other investing, net .............................................................................
Net Cash Used in Investing Activities......................................................
Cash Flows from Financing Activities:

Contributions from Members ..............................................................
Distributions to Members ....................................................................
Repayment of senior notes ..................................................................
Other financing, net .............................................................................
Net Cash Used in Financing Activities ....................................................
Net Change in Cash and Cash Equivalents ..............................................
Cash and Cash Equivalents, beginning of period.....................................
Cash and Cash Equivalents, end of period ............................................... $
Supplemental Disclosures:

Years Ended December 31,

2018

2017
(in millions)

2016

369.5

$

458.0

$

278.5

224.7
(62.3)

(1.7)
10.0
(19.6)
11.4
(2.8)
(29.9)
8.4

3.9

511.6

(36.5)
(3.3)
(39.8)

576.5
(522.7)
(550.0)
(0.2)
(496.4)
(24.6)
25.7
1.1

$

223.7

—

(25.4)
3.4
(7.0)
(7.6)
—
(55.7)
5.8

1.1

596.3

(108.9)
(2.2)
(111.1)

92.0
(669.9)
—

—
(577.9)
(92.7)
118.4
25.7

$

209.6

—

28.2
(12.5)
12.2
(0.6)
(0.7)
—

52.9
(22.5)
545.1

(305.7)
(2.3)
(308.0)

304.9
(471.6)
—

—
(166.7)
70.4

48.0
118.4

Cash payments for interest, net ........................................................... $

(164.9) $

(164.9) $

(155.6)

Schedule of Noncash Investing and Financing Activities:

Increase in accrual for payment of property, plant and equipment ..... $

2.8

$

— $

—

The accompanying notes are an integral part of these financial statements.
176

ROCKIES EXPRESS PIPELINE LLC
NOTES TO FINANCIAL STATEMENTS

1.  Description of Business 

Rockies Express Pipeline LLC ("Rockies Express") is a Federal Energy Regulatory Commission ("FERC") regulated 

natural gas transportation system with approximately 1,712 miles of natural gas pipeline, including laterals, extending from 
Opal, Wyoming and Meeker, Colorado to Clarington, Ohio and consisting of three zones:

•  Zone 1 - a 328-mile pipeline from the Meeker Hub in Northwest Colorado, across Southern Wyoming to the Cheyenne 

Hub in Weld County, Colorado capable of transporting 2.0 Bcf/d of natural gas from west to east;

•  Zone 2 - a 714-mile pipeline from the Cheyenne Hub to an interconnect in Audrain County, Missouri capable of 

transporting 1.8 Bcf/d of natural gas from west to east; and

•  Zone 3 - a 643-mile pipeline from Audrain County, Missouri to Clarington, Ohio, which is bi-directional and capable 

of transporting 1.8 Bcf/d of natural gas from west to east and 2.6 Bcf/d of natural gas from east to west.

The member interests and voting rights in Rockies Express as of December 31, 2018 are as follows:

• 

• 

75% - TEP REX Holdings, LLC ("TEP REX"), an indirect wholly owned subsidiary of Tallgrass Energy Partners, LP 
("TEP"); and

25% - P66REX LLC, a wholly owned subsidiary of Phillips 66.

On March 31, 2017, TEP, Tallgrass Development LP ("TD"), and Rockies Express Holdings, LLC ("REX Holdings"), an 

indirect wholly owned subsidiary of TD, entered into a definitive Purchase and Sale Agreement, pursuant to which TEP 
acquired an additional 24.99% membership interest in Rockies Express from TD in exchange for cash consideration of $400 
million. This transaction increased TEP REX's aggregate membership interest in Rockies Express to 49.99%.

On February 7, 2018, Tallgrass Development Holdings, LLC ("Tallgrass Development Holdings"), a wholly owned 
subsidiary of Tallgrass Equity, acquired REX Holdings and its 25.01% membership interest in Rockies Express as a result of 
the merger of TD into Tallgrass Development Holdings. Tallgrass Equity is the sole member of TEP's general partner. Effective 
July 1, 2018, REX Holdings was merged into TEP REX, resulting in TEP REX owning a 75% membership interest in Rockies 
Express.

2.  Summary of Significant Accounting Policies 

Basis of Presentation

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of 

America ("GAAP") requires management to make estimates and assumptions. These estimates and assumptions affect the 
reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities, and the reported amounts of 
revenues and expenses. Actual results could differ from these estimates. Certain prior year amounts have been reclassified to 
conform to the current presentation.

Use of Estimates

Certain amounts included in or affecting these financial statements and related disclosures must be estimated, requiring 
management to make certain assumptions with respect to values or conditions which cannot be known with certainty at the time 
the financial statements are prepared. These estimates and assumptions affect the amounts reported for assets, liabilities, 
revenues, and expenses during the reporting period, and the disclosure of contingent assets and liabilities at the date of the 
financial statements. Management evaluates these estimates on an ongoing basis, utilizing historical experience, consultation 
with experts and other methods it considers reasonable in the particular circumstances. Nevertheless, actual results may differ 
significantly from these estimates. Any effects on our business, financial position or results of operations resulting from 
revisions to these estimates are recorded in the period in which the facts that give rise to the revision become known.

Cash and Cash Equivalents

Rockies Express considers all highly liquid investments purchased with an original maturity of three months or less to be 

cash equivalents. 

177

Accounts Receivable and Allowance for Doubtful Accounts

Accounts receivable are carried at their estimated collectible amounts. Rockies Express periodically reviews and evaluates 
the appropriateness of the allowance for doubtful accounts based on a statistical analysis of historical defaults, and adjustments 
are recorded as necessary for changes in circumstances and customer-specific information. When specific receivables are 
determined to be uncollectible, the reserve and receivable are relieved. Our allowance for doubtful accounts totaled $1.0 
million and $2.0 million at December 31, 2018 and 2017, respectively.

Fuel Recovery Mechanism

Rockies Express obtains natural gas quantities from its shippers as reimbursement for fuel consumed at compressor 

stations and other locations on its system as well as for natural gas quantities lost and otherwise unaccounted for, in accordance 
with its tariff and applicable contract terms. Rockies Express tracks the volume and value of associated over- or under-
collections of fuel and lost and unaccounted for quantities through a tracking mechanism referred to as "fuel tracker." Those 
amounts are recorded as an addition or reduction to a regulatory asset or liability balance representing the amounts to be 
recovered from or refunded to customers through the fuel tracker mechanisms. Fuel tracker volumes are valued using a 
weighted-average monthly index price.

Accounting for Regulatory Activities

Rockies Express' regulated activities are accounted for in accordance with the "Regulated Operations" Topic of the 

Financial Accounting Standards Board ("FASB") Accounting Standards Codification ("Codification"). This Topic prescribes the 
circumstances in which the application of GAAP is affected by the economic effects of regulation. Regulatory assets and 
liabilities represent probable future revenues or expenses to Rockies Express associated with certain charges and credits that 
will be recovered from or refunded to customers through the ratemaking process. Rockies Express recorded regulatory assets of 
approximately $0.7 million and $10.9 million at December 31, 2018 and 2017, respectively, and regulatory liabilities of 
approximately $1.8 million and $2.0 million at December 31, 2018 and 2017, respectively. Regulatory assets and liabilities at 
December 31, 2018 and 2017 were primarily attributable to the fuel tracker discussed in "Fuel Recovery Mechanism" above. 
For additional details see Note 10 – Regulatory Matters.

Gas Imbalances

Gas imbalances receivable and payable reflect gas volumes owed between Rockies Express and its customers. Gas 

imbalances represent the difference between customer nominated versus actual gas receipts from and gas deliveries to 
interconnecting pipelines under various operational balancing agreements. Gas imbalances are settled in cash or made up in-
kind subject to the terms of the various agreements and are valued at the average monthly index price.

Property, Plant and Equipment

Property, plant and equipment is stated at historical cost, which for constructed assets includes indirect costs such as 

payroll taxes, other employee benefits, allowance for funds used during construction and other costs directly related to the 
projects. Expenditures that increase capacities, improve efficiencies or extend useful lives are capitalized and depreciated over 
the remaining useful life of the asset or major asset component. Rockies Express also capitalizes certain costs directly related to 
the construction of assets, including internal labor costs, interest and engineering costs.

Routine maintenance, repairs and renewal costs are expensed as incurred. The cost of normal retirements of depreciable 
utility property, plant and equipment, plus the cost of removal less salvage value and any gain or loss recognized, is recorded in 
accumulated depreciation with no effect on current period earnings. Gains or losses are recognized upon retirement of property, 
plant and equipment constituting an operating unit or system, and land, when sold or abandoned and costs of removal or 
salvage are expensed when incurred.

Rockies Express maintains natural gas in its pipeline, known as "line pack," which serves to maintain the necessary 
pressure to allow efficient transmission of natural gas. Line pack is capitalized within "Property, plant and equipment, net" on 
the balance sheets and depreciated over the estimated useful life of the pipeline. 

Impairment of Long-Lived Assets 

Rockies Express reviews its long-lived assets for impairment whenever events or changes in circumstances indicate that 
the carrying amount of an asset may not be recoverable. An impairment loss results when the estimated undiscounted future net 
cash flows expected to result from the asset's use and its eventual disposition are less than its carrying amount. Rockies Express 
assesses its long-lived assets for impairment in accordance with the relevant Codification guidance. A long-lived asset is tested 
for impairment whenever events or changes in circumstances indicate its carrying amount may exceed its fair value.

Examples of long-lived asset impairment indicators include:

• 

a significant decrease in the market value of a long-lived asset or group;

178

• 

• 

• 

• 

• 

a significant adverse change in the extent or manner in which a long-lived asset or asset group is being used or in its 
physical condition;

a significant adverse change in legal factors or in the business climate could affect the value of a long-lived asset or 
asset group, including an adverse action or assessment by a regulator which would exclude allowable costs from the 
rate-making process;

an accumulation of costs significantly in excess of the amount originally expected for the acquisition or construction 
of the long-lived asset or asset group;

a current period operating cash flow loss combined with a history of operating cash flow losses or a projection or 
forecast that demonstrates continuing losses associated with the use of a long-lived asset or asset group; and

a current expectation that, more likely than not, a long-lived asset or asset group will be sold or otherwise disposed of 
significantly before the end of its previously estimated useful life. 

When an impairment indicator is present, Rockies Express first assesses the recoverability of the long-lived assets by 
comparing the sum of the undiscounted future cash flows expected to result from the use and eventual disposition of the asset 
to the carrying amount of the asset. If the carrying amount is higher than the undiscounted future cash flows, the fair value of 
the asset is assessed using a discounted cash flow analysis to determine the amount of impairment, if any, to be recognized.

Depreciation and Amortization

Rockies Express has elected to compute depreciation using a composite method employed by applying a single 

depreciation rate to a group of assets with similar economic characteristics. The annual composite rate of depreciation for the 
years ended December 31, 2018, 2017, and 2016 was 2.86%.

Allowance for Funds Used During Construction

Included in the cost of "Property, plant and equipment, net" on the accompanying balance sheets is an allowance for funds 

used during construction ("AFUDC"). AFUDC represents the estimated cost of debt, from borrowed funds, or the estimated 
cost of capital, from equity funds, during the construction period. During the years ended December 31, 2018, 2017 and 2016 
Rockies Express recognized AFUDC associated with the estimated cost of debt of approximately $0.3 million, $0.2 million, 
and $9.3 million, respectively, recorded as "Interest expense, net" on the accompanying statements of income. During the years 
ended December 31, 2018, 2017, and 2016, Rockies Express recognized AFUDC associated with the estimated cost of capital 
from equity funds of approximately $0.6 million, $0.5 million, and $24.8 million, respectively, recorded as "Other income, net" 
on the accompanying statements of income. 

Revenue Recognition

In May 2014, the FASB issued Accounting Standards Update ("ASU") No. 2014-09, Revenue from Contracts with 
Customers (Topic 606). ASU 2014-09 provides a comprehensive and converged set of principles-based revenue recognition 
guidelines which supersede the existing industry and transaction-specific standards. The core principle of the new guidance is 
that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that 
reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. To achieve this core 
principle, entities must apply a five-step process to (1) identify the contract with a customer; (2) identify the performance 
obligations in the contract; (3) determine the transaction price; (4) allocate the transaction price to the performance obligations 
in the contract; and (5) recognize revenue when (or as) the entity satisfies a performance obligation. ASU 2014-09 also 
mandates disclosure of sufficient information to enable users of financial statements to understand the nature, amount, timing 
and uncertainty of revenue and cash flows arising from contracts with customers. The disclosure requirements include 
qualitative and quantitative information about contracts with customers, significant judgments and changes in judgments, and 
assets recognized from the costs to obtain or fulfill a contract.

Management completed its evaluation and implemented the revised guidance using the modified retrospective method as 
of January 1, 2018. This approach allows Rockies Express to apply the new standard to (i) all new contracts entered into after 
January 1, 2018 and (ii) all existing contracts for which all (or substantially all) of the revenue has not been recognized under 
legacy revenue guidance as of January 1, 2018 through a cumulative adjustment to members' equity. Revenues presented in the 
comparative financial statements for periods prior to January 1, 2018 have not been revised.

On January 1, 2018, Rockies Express recorded a cumulative effect adjustment to equity of $125.2 million. The cumulative 
effect adjustment arose as a result of the allocation of the transaction price to a series of individual performance obligations in 
certain long-term transportation contracts with rates that vary throughout the term of the contract. Rockies Express established 
a contract asset on January 1, 2018 that reflects the amount by which the revenue that would have been recognized pursuant to 
ASC 606 exceeds the actual cash collected from the customer for periods prior to implementation and will be reversed over the 
remaining term of the contract.

179

See Note 7 – Revenue from Contracts with Customers for revenue disclosures related to both the implementation and the 

additional requirements prescribed by the standard. These new disclosures include information regarding the significant 
judgments used in evaluating when and how revenue is (or will be) recognized and data related to contract assets and liabilities.

Deferred Financing Costs

Costs incurred in connection with the issuance of long-term debt are deferred and amortized over the related financing 
period using the effective interest method. Deferred financing costs associated with long-term debt are presented as a reduction 
to the corresponding debt on the accompanying balance sheets. Deferred financing costs associated with revolving credit 
facilities or lines of credit are classified as noncurrent assets on the accompanying balance sheets.

Deferred Charges and Deferred Credits

Rockies Express has $0.5 million remaining of an initial $20.0 million deferred charge and deferred credit relating to a 
customer contract. The deferred charge is being amortized using a straight-line-method over the life of the related contract. 
Amortization of the deferred charge for each of the years ended December 31, 2018, 2017, and 2016 was $2.0 million and is 
included within transportation services revenues in the accompanying statements of income. The deferred credit is payable over 
a period of 10 years.

Environmental Matters

Rockies Express expenses or capitalizes, as appropriate, environmental expenditures that relate to current operations. 
Rockies Express expenses amounts that relate to an existing condition caused by past operations that do not contribute to 
current or future revenue generation. Rockies Express does not discount environmental liabilities to a net present value, and 
records environmental liabilities when environmental assessments and/or remedial efforts are probable and costs can be 
reasonably estimated. Generally, recording of these accruals coincides with the completion of a feasibility study or a 
commitment to a formal plan of action.

Fair Value

Fair value, as defined in the fair value measurement accounting guidance, is the price that would be received to sell an 
asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date, or exit price. 
The fair value measurement accounting guidance requires that Rockies Express make assumptions that market participants 
would use in pricing an asset or liability based on the best information available. These factors include nonperformance risk 
(the risk that an obligation will not be fulfilled) and credit risk of the reporting entity (for liabilities) and of the counterparty 
(for assets). The fair value measurement guidance prohibits the inclusion of transaction costs and any adjustments for blockage 
factors in determining the instruments' fair value. The principal or most advantageous market should be considered from the 
perspective of the reporting entity. The fair value of current financial assets and liabilities approximate their reported carrying 
amounts as of December 31, 2018 and 2017.

Income Taxes

Rockies Express is a limited liability company that has elected to be treated as a partnership for income tax purposes. 
Accordingly, no provision for federal or state income taxes has been recorded in the financial statements of Rockies Express 
and the tax effects of Rockies Express' activities accrue to its Members.

Accounting Pronouncements Not Yet Adopted

ASU No. 2016-02, "Leases (Topic 842)"

In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842). ASU 2016-02 provides a comprehensive update 

to the lease accounting topic in the Codification intended to increase transparency and comparability among organizations by 
recognizing right-of-use ("ROU") assets and lease liabilities on the balance sheet and disclosing key information about leasing 
arrangements. The amendments in ASU 2016-02 include a revised definition of a lease as well as certain scope exceptions. The 
changes primarily impact lessee accounting, while lessor accounting is largely unchanged from previous GAAP. 

Subsequent to issuing ASU 2016-02, the FASB has issued a series of subsequent updates to the lease guidance in Topic 
842, including ASU No. 2018-01, Leases (Topic 842): Land Easement Practical Expedient for Transition to Topic 842, ASU 
No. 2018-10, Codification Improvements to Topic 842, Leases, ASU No. 2018-11, Leases (Topic 842): Targeted Improvements, 
and ASU 2018-20, Leases (Topic 842): Narrow-Scope Improvements for Lessors. The amendments in ASU 2016-02, ASU 
2018-01, ASU 2018-10, ASU 2018-11, and ASU 2018-20 are effective for public entities for annual reporting periods 
beginning after December 15, 2018, and for interim periods within that reporting period.

180

Management has completed its evaluation and implemented the revised guidance using the modified retrospective method 
as of January 1, 2019. The approach allows Rockies Express to (i) initially apply ASC 842 at the adoption date, January 1, 2019 
and (ii) continue reporting comparative periods presented in the financial statements in the period of adoption under ASC 840. 
Rockies Express will not recast comparative periods in the accompanying financial statements. Management elected the 
package of practical expedients permitted under the transition guidance within the new standard, which among other things, 
allowed Rockies Express to carry forward the historical lease classification. Management also elected the practical expedient 
related to land easements, allowing Rockies Express to carry forward the accounting treatment for land easements on existing 
agreements.

Adoption of the new standard resulted in the recognition of ROU assets and lease liabilities for operating leases of 

approximately $40.0 million.

3.  Property, Plant and Equipment 

Rockies Express' property, plant and equipment, net consisted of the following:

Natural gas pipelines ........................................................................................... $
General and other ................................................................................................
Construction work in progress ............................................................................
Accumulated depreciation and amortization.......................................................
Total property, plant and equipment, net............................................................. $

December 31,

2018

2017

(in millions)

7,677.0

$

15.8
27.8
(1,961.6)
5,759.0

$

7,661.2

15.4
11.9
(1,749.3)
5,939.2

Depreciation expense was approximately $219.6 million, $218.4 million and $204.3 million for the years ended 

December 31, 2018, 2017 and 2016, respectively.

4.  Financing 

Debt

Total outstanding debt as of December 31, 2018 and 2017 consisted of the following:

6.85% senior notes due July 15, 2018 (1)............................................................. $
6.00% senior notes due January 15, 2019 (2) .......................................................
5.625% senior notes due April 15, 2020 .............................................................
7.50% senior notes due July 15, 2038.................................................................
6.875% senior notes due April 15, 2040 .............................................................
Less: Unamortized debt discount and deferred financing costs .....................
Total debt, net......................................................................................................
Less: Current portion......................................................................................
Total long-term debt, net ..................................................................................... $

December 31,

2018

2017

(in millions)

— $

525.0

750.0

250.0
500.0
(7.3)
2,017.7
(525.0)
1,492.7

$

550.0

525.0

750.0

250.0
500.0
(10.2)
2,564.8
(550.0)
2,014.8

(1)  The 6.85% senior notes were repaid on July 15, 2018. The repayment was funded by contributions from the Rockies 

Express Members, as discussed further below.

(2)  The 6.00% senior notes were repaid on January 15, 2019. The repayment was funded by the issuance of a 364-Day 

Term Loan Agreement effective January 8, 2019, as discussed further below.

Rockies Express Senior Notes

The senior notes issued by Rockies Express are redeemable in whole or in part, at Rockies Express' option at any time, at 

redemption prices defined in the associated indenture agreements. 

181

All payments of principal and interest with respect to the fixed rate senior notes are the sole obligation of Rockies Express. 

Note holders have no recourse against Rockies Express' Members or their respective officers, directors, employees, 
shareholders, members, managers, unit holders or affiliates for any failure by Rockies Express to perform or comply with its 
obligations pursuant to the notes or the indenture. As of December 31, 2018, Rockies Express was in compliance with the 
covenants required under the senior notes.

Maturities of Debt

The scheduled maturities of Rockies Express' outstanding debt balances as of December 31, 2018 are summarized as 

follows (in millions):

Year
2019.................................................................................................................................................
2020.................................................................................................................................................
2021.................................................................................................................................................
2022.................................................................................................................................................
2023.................................................................................................................................................
Thereafter ........................................................................................................................................
Total scheduled maturities...............................................................................................................
Unamortized debt discount and deferred financing costs ...............................................................
Total debt.........................................................................................................................................

Scheduled Maturities

$

$

525.0

750.0

—

—

—

750.0

2,025.0
(7.3)
2,017.7

The 6.00% senior notes were repaid on January 15, 2019. The repayment was funded by the issuance of a 364-Day Term 
Loan Agreement effective January 8, 2019 (the "Term Loan") which matures on January 7, 2020. As a result, Rockies Express 
has $525 million of debt scheduled to mature within one year of the issuance of these financial statements. Management has 
obtained a letter of support from the Members of Rockies Express confirming the Members' intent and ability to provide 
Rockies Express with financial support through at least one year and a day beyond February 8, 2019 to the extent that other 
sources of funding are not otherwise available to Rockies Express. This support from the Members effectively alleviates the 
risk surrounding the ability of Rockies Express to continue as a going concern.

Rockies Express Revolving Credit Facility

On October 1, 2015, Rockies Express entered into a $150 million senior unsecured revolving credit facility ("the revolving 
credit facility") with Wells Fargo Bank, N.A., as administrative agent, and a syndicate of lenders, which will mature on January 
31, 2020. The revolving credit facility includes a $75 million sublimit for letters of credit and a $20 million sublimit for swing 
line loans and may be used for working capital and general company purposes. The revolving credit facility also contains an 
accordion feature whereby Rockies Express can increase the size of the credit facility to an aggregate of $200 million, subject 
to receiving increased or new commitments from lenders and the satisfaction of certain other conditions precedent. As of 
December 31, 2018, there were no outstanding borrowings or letters of credit issued under the revolving credit facility.

Borrowings under the credit facility bear interest, at Rockies Express' option, at either (a) a base rate, which will be a rate 

equal to the greatest of (i) the prime rate, (ii) the U.S. federal funds rate plus 0.5% and (iii) a one-month reserve adjusted 
Eurodollar rate plus 1.00% or (b) a reserve adjusted Eurodollar rate, plus, in each case, an applicable margin. For borrowings 
bearing interest based on the base rate, the applicable margin was initially 1.00%, and for loans bearing interest based on the 
reserve adjusted Eurodollar rate, the applicable margin was initially 2.00%. After the first full fiscal quarter, the applicable 
margin ranges from 0.50% to 1.25% for base rate borrowings and 1.50% to 2.25% for reserve adjusted Eurodollar rate 
borrowings, based upon Rockies Express' total leverage ratio. The unused portion of the credit facility is subject to a 
commitment fee, which ranges from 0.20% to 0.45% based upon Rockies Express' total leverage ratio.

Rockies Express has the option to have the applicable margin determined based on Rockies Express' credit ratings. If 
Rockies Express were to make an election to exercise this option, the applicable margin would range from 0.125% to 1.00% for 
base rate borrowings and 1.125% to 2.00% for reserve adjusted Eurodollar borrowings, based on Rockies Express' credit 
ratings. Under such an election, the commitment fee would range from 0.125% to 0.40%, also based on Rockies Express' credit 
ratings.

182

Covenants Under the Term Loan and Revolving Credit Facility

The Term Loan and the revolving credit facility generally require Rockies Express to comply with various affirmative and 

negative covenants, including a limit on the leverage ratio (as defined in each credit agreement) of Rockies Express and 
restrictions on:

• 

• 

• 

• 

incurring secured indebtedness;

entering into mergers, consolidations and sales of assets;

granting liens;

entering into transactions with affiliates; and

•  making restricted payments.

As of December 31, 2018, Rockies Express was in compliance with the covenants required under the revolving credit 

facility.

Fair Value

The following table sets forth the carrying amount and fair value of Rockies Express' debt, which is not measured at fair 

value in the accompanying balance sheets as of December 31, 2018 and 2017, but for which fair value is disclosed:

Fair Value

Quoted prices
in active markets
for identical assets
(Level 1)

Significant
other observable
inputs
(Level 2)

Significant
unobservable
inputs
(Level 3)

Total

Carrying
Amount

December 31, 2018 ................. $
December 31, 2017 ................. $

— $

— $

(in millions)

2,086.9

2,752.1

$

$

— $

— $

2,086.9

2,752.1

$

$

2,017.7

2,564.8

The debt is carried at amortized cost, net of deferred financing costs. The estimated fair value of Rockies Express' 
outstanding private placement debt is based upon quoted market prices adjusted for illiquid markets. Rockies Express is not 
aware of any factors that would significantly affect the estimated fair value subsequent to December 31, 2018.

5.  Members' Equity 

During the years ended December 31, 2018, 2017, and 2016, Rockies Express made distributions to Members of $522.7 

million, $669.9 million, and $471.6 million, respectively. The distributions paid by Rockies Express during the year ended 
December 31, 2017 included a distribution of the proceeds from the Ultra settlement discussed in Note 11 – Legal and 
Environmental Matters.

During the years ended December 31, 2018, 2017, and 2016, Rockies Express received contributions from Members of 
$576.5 million, $92.0 million, and $304.9 million, respectively. Contributions from Members during the year ended December 
31, 2018 included a special contribution of approximately $550 million to fund the repayment of senior notes as discussed in 
Note 4 – Financing. Contributions from Members during the years ended December 31, 2017 and 2016 were primarily used to 
fund the construction and other costs of the Zone 3 Capacity Enhancement project, as discussed in Note 10 – Regulatory 
Matters.

Additional contributions and distributions were made subsequent to December 31, 2018. For details see Note 12 – 

Subsequent Events. 

6.  Related Party Transactions 

Rockies Express has an operating agreement with Tallgrass NatGas Operator, LLC ("NatGas"), a subsidiary of TEP, under 

which NatGas provides and bills Rockies Express for various services at cost including employee labor costs, information 
technology services, employee health and retirement benefits, and insurance for property and casualty risks. In addition, 
NatGas receives a management oversight fee in the amount of 1% of Rockies Express' earnings before interest, taxes, 
depreciation, and amortization. Rockies Express' practice is to settle receivable and payable balances that exist with affiliates in 
the following month.

183

 
 
 
 
 
Totals of significant transactions with affiliated companies are as follows:

Revenues: Transportation services (1).............................. $
Charges to Rockies Express:

Compensation, benefits and other charges............... $

General and administrative charges from affiliate... $

Management Fees:

Tallgrass NatGas Operator, LLC.............................. $

Years Ended December 31,

2018

2017
(in millions)

2016

— $

— $

18.1

10.3

7.5

$

$

$

18.6

8.9

8.5

$

$

$

14.4

20.6

9.4

6.2

(1)   Transportation services revenue for the year ended December 31, 2016 is primarily from Sempra Energy prior to the 

May 6, 2016 sale of Sempra Energy's ownership to TEP REX.

Balances with affiliated companies included in the accompanying balance sheets are as follows:

December 31,

2018

2017

(in millions)

Payables to affiliated companies:

TEP................................................................................................................. $
TD...................................................................................................................

Total payables to affiliated companies ...................................................... $

3.4

—

3.4

$

$

Gas imbalances with affiliated shippers are as follows:

Affiliate gas imbalance receivables .................................................................... $

7.  Revenue from Contracts with Customers 

December 31,

2018

2017

(in millions)

0.8

$

1.3

2.3

3.6

0.4

As discussed in Note 2 – Summary of Significant Accounting Policies, Rockies Express adopted the guidance in ASC Topic 

606 effective January 1, 2018 using the modified retrospective method of adoption. As a result, revenue reported for the years 
ended December 31, 2017 and 2016 have not been revised. The following tables provide the impact of the guidance on the 
Rockies Express balance sheet as of December 31, 2018 and statement of income for the year ended December 31, 2018:

December 31, 2018

As currently
reported

Under previous
guidance

Impact of ASC
Topic 606

(in millions)

Current portion of contract asset ................................................. $
Contract asset............................................................................... $

31.8

157.0

$

$

— $

— $

31.8 (1)
157.0 (1)

184

 
 
Transportation services................................................................ $
General and administrative.......................................................... $
Net Income to Members .............................................................. $

Year Ended December 31, 2018

As currently
reported

Under previous
guidance

Impact of ASC
Topic 606

(in millions)

907.7

28.2

369.5

$

$

$

845.4

27.6

307.8

$

$

$

62.3 (1)
0.6 (2)
61.7

(1)  Reflects the impact of the allocation of the transaction price to a series of individual performance obligations in certain 
long-term transportation contracts with rates that vary throughout the term of the contract and related contract asset.

(2)  Reflects the additional management fee associated with the effect of the change in gas transportation revenue.

Disaggregated Revenue

A summary of our revenue by line of business is as follows:

Year Ended December
31, 2018
(in millions)

Firm Transportation - West to East .................................................................................................
Firm Transportation - East to West .................................................................................................
All other ..........................................................................................................................................
Total firm transportation.............................................................................................................
Natural gas sales..............................................................................................................................
Total revenue ..............................................................................................................................

$

$

467.7

425.0

15.0

907.7

6.9

914.6

Performance Obligations

A performance obligation is a promise in a contract to transfer a distinct good or service to the customer, and is the unit of 
account in ASC Topic 606. A contract's transaction price is allocated to each distinct performance obligation and recognized as 
revenue when, or as, the performance obligation is satisfied. The majority of Rockies Express' contracts have a single 
performance obligation and are billed and collected monthly. These performance obligations typically include an obligation to 
stand ready to provide natural gas transportation service over the life of the contract, which is a series. These performance 
obligations are satisfied over time using each day of service to measure progress toward satisfaction of the performance 
obligation.

Rockies Express also engages in commodity sales, in which the performance obligations include an obligation to deliver 
the specified volume of a commodity to the designated receipt point. Revenue from commodity sales is recognized at a point in 
time when the customer obtains control of the commodity, typically upon delivery to the designated delivery point when the 
customer accepts and takes possession of the commodity.

On December 31, 2018, we had $7.5 billion of remaining performance obligations, which we refer to as total backlog. 
Total backlog includes performance obligations under firm transportation contracts, and excludes variable consideration that is 
not estimated at contract inception, as discussed further below. We expect to recognize the total backlog during future periods 
as follows (in millions):

Year
2019.................................................................................................................................................
2020.................................................................................................................................................
2021.................................................................................................................................................
2022.................................................................................................................................................
2023.................................................................................................................................................
Thereafter ........................................................................................................................................
Total............................................................................................................................................

$

$

Estimated Revenue

853.9

617.3

606.3

576.2

572.0

4,278.5

7,504.2

185

 
Contract Estimates

Accounting for long-term contracts involves the use of various techniques to estimate total contract revenue. Contract 

estimates are based on various assumptions to project the outcome of future events that often span several years.

The nature of our contracts gives rise to several types of variable consideration, including volumetric charges for actual 
volumes delivered, overrun charges, and other fees that are contingent on the actual volumes delivered by our customers. As the 
amount of variable consideration is allocable to each distinct performance obligation within the series of performance 
obligations that comprise the performance obligation, we do not estimate the total variable consideration for the overall 
performance obligation because the uncertainty related to the consideration is resolved each month as the distinct service is 
provided. Consequently, we are able to include in the transaction price each month the actual amount of variable consideration 
because no uncertainty exists surrounding the services provided that month.

Contract Balances

The timing of revenue recognition, billings, and cash collections may result in billed accounts receivable, unbilled 
receivables (contract assets), and deferred revenue (contract liabilities) on our balance sheets. Revenue is generally billed and 
collected monthly based on services provided or volumes sold. As of December 31, 2018, we had recognized a contract asset of 
$188.8 million reflecting the amount by which the revenue recognized exceeds the actual cash collected from certain contracts 
with rates that vary throughout the term of the contract.

8.  Commitments and Contingent Liabilities 

Leases

Total rental expense under operating leases was $29.2 million for the years ended December 31, 2018, 2017, and 2016. 

Future minimum commitments related to these leases as of December 31, 2018 are as follows (in millions):

Year
2019.................................................................................................................................................
2020.................................................................................................................................................
2021.................................................................................................................................................
2022.................................................................................................................................................
2023.................................................................................................................................................
Thereafter ........................................................................................................................................
Total.................................................................................................................................................

$

$

Future Minimum
Lease Payments

29.1

29.1

29.1

29.1

29.1

116.4

261.9

The future minimum rental commitments are primarily attributable to a 20-year capacity lease agreement with Overthrust 

Pipeline Company ("Overthrust") which commenced on January 1, 2008. The capacity lease provides the right to transport on a 
firm basis 625 MMcf/d of natural gas through Overthrust's system from either the Williams Field Services Opal Processing 
Plant or the TEPPCO Pioneer Processing Plant to the Wamsutter interconnect.

Capital Expenditures

Approximately $60.8 million of Rockies Express' capital expenditure budget for 2019 had been committed for purchases 

of property, plant and equipment at December 31, 2018.

9.  Major Customers 

During 2018, three non-affiliated shippers accounted for $168.5 million (18%), $118.7 million (13%), and $112.2 million 

(12%), respectively of Rockies Express' total revenues. During 2017, three non-affiliated shippers accounted for $169.4 million 
(20%), $111.9 million (13%), and $101.3 million (12%), respectively of Rockies Express' total revenues. During 2016, four 
non-affiliated shippers accounted for $164.8 million (23%), $82.9 million (12%), $71.4 million (10%), and $70.4 million 
(10%), respectively of Rockies Express' total revenues. Rockies Express attempts to mitigate credit risk by seeking collateral or 
financial guarantees and letters of credit from customers. 

186

10.  Regulatory Matters 

There are no regulatory proceedings challenging the transportation rates of Rockies Express. Rockies Express has made 

certain regulatory filings with the FERC, including the following: 

Petition for Declaratory Order – FERC Docket No. RP13-969-000 

In June 2013, in Docket No. RP13-969-000, Rockies Express filed with the FERC a Petition for Declaratory Order which 
sought a ruling that the "most favored nations" or "MFN" provisions contained in Rockies Express' negotiated rate agreements 
("NRAs") with its Foundation and Anchor Shippers would not prevent Rockies Express from providing firm transportation 
service at rates lower than Foundation and Anchor Shippers' rates that (1) have an east-to-west primary path; (2) are for a term 
of one year or longer; and (3) are limited to service in one rate zone and therefore do not utilize all of the same facilities or rate 
zones as the service provided pursuant to the Foundation and Anchor Shipper NRAs. In November 2013, the FERC issued a 
declaratory order finding that the potential transactions would not trigger the MFN rights of Rockies Express' Foundation and 
Anchor Shippers. Various parties filed requests for rehearing of the FERC's declaratory order. 

In September 2014 and December 2015, the FERC accepted amended contracts with the shippers holding MFN rights on 
Rockies Express, which reflect the terms of settlements between these shippers and Rockies Express. The settlements provide 
additional clarity with respect to the applicability of the settling shippers' MFN rights, sharing by Rockies Express of certain 
transportation revenues, and the withdrawal of the settling shippers from the Petition for Declaratory Order proceeding. On 
September 27, 2017, FERC issued an order denying the requests for rehearing of the declaratory order issued in November 
2013, and no party sought judicial appeal of the FERC order denying rehearing within the statutory deadline.

Seneca Lateral Facilities Conversion – FERC Docket No. CP15-102-000 

On March 2, 2015 in Docket No. CP15-102-000, Rockies Express filed with the FERC an application for (1) authorization 

to convert certain existing and operating pipeline and compression facilities located in Noble and Monroe Counties, Ohio 
(Seneca Lateral Facilities described in Docket Nos. CP13-539-000 and CP14-194-000) from Natural Gas Policy Act of 1978 
Section 311 authority to Natural Gas Act ("NGA") Section 7 jurisdiction, and (2) issuance of a certificate of public convenience 
and necessity authorizing Rockies Express to operate and maintain the Seneca Lateral Facilities. On April 7, 2016, the FERC 
issued a Certificate to Rockies Express granting its requested authorizations and on June 1, 2016 Rockies Express commenced 
NGA service on the Seneca Lateral.

Rockies Express Zone 3 Capacity Enhancement Project – FERC Docket No. CP15-137-000

On March 31, 2015 in Docket No. CP15-137-000, Rockies Express filed with the FERC an application for authorization to 
construct and operate (1) three new mainline compressor stations located in Pickaway and Fayette Counties, Ohio and Decatur 
County, Indiana; (2) additional compressors at an existing compressor station in Muskingum County, Ohio; and (3) certain 
ancillary facilities. The facilities increased the Rockies Express Zone 3 east-to-west mainline capacity by 0.8 Bcf/d. Pursuant to 
the FERC's obligations under the National Environmental Policy Act, FERC staff issued an Environmental Assessment for the 
project on August 31, 2015. On February 25, 2016, the FERC issued a Certificate of Public Convenience and Necessity 
authorizing Rockies Express to proceed with the project. On March 14, 2016, Rockies Express commenced construction of the 
project facilities. The project was placed in-service for the full 0.8 Bcf/d on January 6, 2017. 

2016 Annual and Interim FERC Fuel Tracking Filings - FERC Docket Nos. RP16-702 and RP17-240

On March 1, 2016, Rockies Express made its annual fuel tracker filing with a proposed effective date of April 1, 2016 in 

Docket No. RP16-702. The FERC issued an order accepting the filing on March 25, 2016. On December 1, 2016, Rockies 
Express made an interim fuel tracker filing with a proposed effective date of January 1, 2017 in Docket No. RP17-240. The 
FERC issued an order accepting the filing on December 29, 2016.

Electric Power Charge Clarification - FERC Docket No. RP17-285

On December 21, 2016, in Docket No. RP17-285, Rockies Express proposed certain revisions to the General Terms and 

Conditions of its tariff to clarify that the electric power costs associated with the operation of gas coolers installed in 
association with the Zone 3 Capacity Enhancement Project at both electric and gas powered stations, will be included in the 
Power Cost Tracker. Several shippers submitted comments on the proposal. The FERC issued an order on January 19, 2017 
accepting the proposed revisions permitting the recovery of electric power costs from the operation of both gas and electric 
powered compressor stations, subject to certain clarifications.

2017 Annual and Interim FERC Fuel Tracking Filings - FERC Docket Nos. RP17-401 and RP17-1064

On February 13, 2017, in Docket No. RP17-401, Rockies Express made its annual fuel and power cost tracker filing with a 
proposed effective date of April 1, 2017. The FERC issued an order accepting the filing, including certain requested waivers, on 
March 21, 2017. On September 20, 2017, Rockies Express made its interim fuel tracker filing in Docket No. RP17-1064 with a 
proposed effective date of November 1, 2017. The FERC issued an order accepting the filing on October 18, 2017.

187

Increased Frequency of FL&U and PCT Adjustments - FERC Docket No. RP18-228

On December 1, 2017, in Docket No. RP18-228, Rockies Express made a filing with the FERC to increase the frequency 

in which it may adjust fixed fuel and lost and unaccounted for retainages and power cost tracker charges during the year so that 
its recovery of fixed fuel and lost and unaccounted for charges and power costs more closely track usage. Rockies Express 
proposed an effective date of April 1, 2018. The comment period ended on December 13, 2017, and no parties opposed Rockies 
Express' filing. On April 4, 2018, the FERC issued a letter order accepting Rockies Express' proposal, subject to certain 
modifications. Rockies Express submitted a compliance filing reflecting the approved tariff provisions and requested 
modifications on April 10, 2018. No comments on the compliance filing were submitted by the comment deadline of April 16, 
2018. On April 18, 2018, the FERC issued an order accepting Rockies Express' compliance filing effective April 19, 2018.

2018 Annual FERC Fuel Tracking Filing - FERC Docket No. RP18-453

On February 20, 2018, in Docket No. RP18-453, Rockies Express made its annual fuel and power cost tracker filing with a 

proposed effective date of April 1, 2018. The FERC issued an order accepting the filing on March 19, 2018.

Cheyenne Hub Enhancement Project - FERC Docket CP18-103

On March 2, 2018, Rockies Express submitted an application pursuant to section 7(c) of the NGA for a certificate of public 

convenience and necessity authorizing the construction and operation of certain booster compressor units and ancillary 
facilities located at the Cheyenne Hub in Weld County, Colorado that will enable Rockies Express to provide a new hub service 
allowing for firm receipts and deliveries between Rockies Express and certain other interconnected pipelines at the Cheyenne 
Hub. The comment period for the Cheyenne Hub Enhancement Project closed on April 9, 2018. To date, various comments 
have been filed by market participants and others regarding the proposed project. Rockies Express has also responded to data 
requests from FERC's relevant program offices. On October 11, 2018, the FERC issued a Notice of Schedule of Environmental 
Review setting December 18, 2018 as the date of issuance of the Environmental Assessment and March 18, 2019 as the 
deadline for decisions by other federal agencies on requests for authorizations for the proposed project. On December 18, 2018, 
the FERC issued the Environmental Assessment.

Rockies Express Form No. 501-G Filing - FERC Docket No. RP19-412

On December 6, 2018, Rockies Express submitted its one-time informational filing in compliance with Order No. 849, 

which required interstate natural gas pipelines to make a one-time informational filing on the rate effect of the changes in tax 
laws and policy following the Tax Cuts and Jobs Act and FERC's changes to its Income Tax Policy Statement following the 
decision of the U.S. Court of Appeals for the D.C. Circuit in United Airlines, Inc. v. FERC in 2016. The filing remains pending 
before the FERC.

11.  Legal and Environmental Matters 

Legal

In addition to the matters discussed below, Rockies Express is a defendant in various lawsuits arising from the day-to-day 
operations of its business. Although no assurance can be given, Rockies Express believes, based on its experiences to date, that 
the ultimate resolution of such routine items will not have a material adverse impact on its business, financial position, results 
of operations or cash flows.

Rockies Express has evaluated claims in accordance with the accounting guidance for contingencies that it deems both 
probable and reasonably estimable and, accordingly, has recorded no reserve for legal claims as of December 31, 2018 or 2017. 

Ohio Public Utility Excise Tax

The Ohio Tax Commissioner has assessed Rockies Express a public utility excise tax on transactions concerning product 

that entered and exited Rockies Express within the state of Ohio. This tax applies to gross receipts from all business conducted 
within the state, but exempts all receipts derived wholly from interstate business. Rockies Express has disputed any obligation 
to pay Ohio's public utility excise tax, but has paid the taxes as assessed in order to preserve its right to appeal. The dispute is 
currently pending before the Ohio Supreme Court, with a final decision possible by the end of 2019. It is Rockies Express' 
position that the relevant statute exempts receipts derived wholly from interstate business from the public utility excise tax. The 
Ohio Supreme Court and the United States Supreme Court have both held that, once it enters an interstate pipeline, natural gas 
is moving in "interstate commerce" for the duration of its journey until it is delivered to a local distribution system. As of 
December 31, 2018, Rockies Express has paid public utility excise taxes to the state of Ohio totaling $7.1 million and has 
accrued an additional $3.3 million for amounts expected to be assessed through the year ended December 31, 2018. While it is 
difficult to accurately predict how the Ohio Supreme Court will decide the case, Rockies Express is optimistic about the 
ultimate outcome and has recorded a $10.4 million asset representing the anticipated refund of the public utility excise taxes 
paid.

188

Mineral Management Service Lawsuit

On June 30, 2009, Rockies Express filed claims against Mineral Management Service, a former unit of the U.S. 

Department of Interior (collectively "Interior") for breach of its contractual obligation to sign transportation service agreements 
for pipeline capacity that it had agreed to take on Rockies Express. The Civilian Board of Contract Appeals ("CBCA") 
conducted a trial and ruled that Interior was liable for breach of contract, but limited the damages Interior was required to pay. 
On September 13, 2013, the United States Court of Appeals for the Federal Circuit issued a decision affirming that Interior was 
liable for its breach of contract, but reversing the CBCA's decision to limit damages. The case was remanded to the CBCA for 
the purpose of calculating damages at a hearing. On May 20, 2016, Rockies Express and Interior agreed to resolve the claims in 
this matter in exchange for a $65 million cash payment to Rockies Express. Interior paid the amount due Rockies Express on 
June 23, 2016.

Ultra Resources 

In early 2016, Ultra Resources, Inc. ("Ultra") defaulted on its firm transportation service agreement for approximately 0.2 

Bcf/d through November 11, 2019. In late March 2016, Rockies Express terminated Ultra's service agreement. On April 14, 
2016, Rockies Express filed a lawsuit against Ultra for breach of contract and damages in Harris County, Texas, seeking 
approximately $303 million in damages and other relief. On April 29, 2016, Ultra and certain of its debtor affiliates filed for 
protection under Chapter 11 of the United States Bankruptcy Code in United States Bankruptcy Court for the Southern District 
of Texas, which operated as a stay of the Harris County state court proceeding.

On January 12, 2017, Rockies Express and Ultra entered into an agreement to settle Rockies Express' approximately $303 

million claim against Ultra. In accordance with the settlement agreement, Ultra made a cash payment to Rockies Express of 
$150 million on July 12, 2017, and entered into a new, seven-year firm transportation agreement with Rockies Express 
commencing December 1, 2019, for west-to-east service of 0.2 Bcf/d at a rate of approximately $0.37 per dth/d, or 
approximately $26.8 million annually.

Michels Corporation 

On June 17, 2014, Michels Corporation ("Michels") filed a complaint and request for relief against Rockies Express in the 

Court of Common Pleas, Monroe County, Ohio, as a result of work performed by Michels to construct the Seneca Lateral 
Pipeline in Ohio. Michels sought unspecified damages from Rockies Express and asserted claims of breach of contract, 
negligent misrepresentation, unjust enrichment and quantum meruit. Michels also filed notices of Mechanic's Liens in Monroe 
and Noble Counties, asserting $24.2 million as the amount due.

On February 2, 2017, Rockies Express and Michels agreed to resolve Michels' claims for a $10 million cash payment by 
Rockies Express. The cash payment was inclusive of approximately $5.9 million that Rockies Express had been withholding 
from Michels. Subsequently, Rockies Express and Michels entered into a definitive agreement with respect to the settlement 
and Rockies Express made the $10 million cash payment to Michels on February 16, 2017.

Environmental, Health and Safety

Rockies Express is subject to a variety of federal, state and local laws that regulate permitted activities relating to air and 
water quality, waste disposal, and other environmental matters. Rockies Express believes that compliance with these laws will 
not have a material adverse impact on its business, cash flows, financial position or results of operations. However, there can be 
no assurances that future events, such as changes in existing laws, the promulgation of new laws, or the development of new 
facts or conditions will not cause Rockies Express to incur significant costs.

Seneca Lateral

On January 31, 2018, Rockies Express experienced an operational disruption on its Seneca Lateral due to a pipe rupture 

and natural gas release in a rural area in Noble County, Ohio. There were no injuries reported and no evacuations. The release 
required Rockies Express to shut off the flow through the segment until February 27, 2018, when temporary repairs were 
completed allowing the segment to be placed back into service. Total cost of remediation was approximately $6.1 million prior 
to any insurance recoveries. Permanent repairs were completed in September 2018. As of February 8, 2019, Rockies Express 
has recovered a significant majority of these costs from insurance.

12.  Subsequent Events 

Subsequent events, which are events or transactions that occurred after December 31, 2018 through the issuance of the 

accompanying financial statements, have been evaluated through February 8, 2019.

Members' Equity

Rockies Express paid distributions of $46.3 million to its Members and received contributions from its Members of $7.9 

million in January 2019.

189

(2) 

Financial Statement Schedules

All schedules are omitted because they are either not applicable or the required information is shown in the 
Consolidated Financial Statements or notes thereto included in Item 8 of this Form 10-K.

(3) 

Exhibits

Exhibit No. Description
2.1

Agreement and Plan of Merger, dated as of March 26, 2018, by and among Tallgrass Energy GP, LP, Tallgrass 
Equity, LLC, Razor Merger Sub, LLC, Tallgrass Energy Partners, LP and Tallgrass MLP GP, LLC 
(incorporated by reference to Exhibit 2.1 to Tallgrass Energy, LP’s Current Report on Form 8-K filed on 
March 27, 2018).

2.2

3.1

3.2

3.3

3.4

3.5

3.6

3.7

3.8

3.9

4.1

4.2

4.3

4.4

4.5

Agreement and Plan of Merger, dated as of February 7, 2018, by and among Tallgrass Energy GP, LP, 
Tallgrass Development, LP, Tallgrass Equity, LLC, Tallgrass Development Holdings, LLC and Tallgrass 
Energy Holdings, LLC (incorporated by reference to Exhibit 2.2 to Tallgrass Energy, LP’s Quarterly Report 
on Form 10-Q filed on May 3, 2018).

Certificate of Limited Partnership of Tallgrass Energy GP, LP, dated February 10, 2015 (incorporated by 
reference to Exhibit 3.1 to Tallgrass Energy GP, LP's Registration Statement on Form S-1 filed February 24, 
2015).

Certificate of Formation of TEGP Management, LLC, dated February 10, 2015 (incorporated by reference to 
Exhibit 3.3 to Tallgrass Energy GP, LP's Registration Statement on Form S-1 filed February 24, 2015).

Certificate of Formation of Tallgrass GP Holdings, LLC, dated March 28, 2013 (now known as Tallgrass 
Equity, LLC) (incorporated by reference to Exhibit 3.5 to Tallgrass Energy GP, LP's Registration Statement on 
Form S-1 filed February 24, 2015).

Certificate of Amendment to Certificate of Formation of Tallgrass GP Holdings, LLC, dated February 20, 
2015 (now known as Tallgrass Equity, LLC) (incorporated by reference to Exhibit 3.6 to Tallgrass Energy GP, 
LP's Registration Statement on Form S-1 filed February 24, 2015).

Second Amended and Restated Limited Liability Company Agreement of Tallgrass Equity, LLC, dated May 
12, 2015 (incorporated by reference to Exhibit 3.7 to Tallgrass Energy GP, LP's Quarterly Report on Form 10-
Q filed on June 18, 2015).

Certificate of Amendment to Limited Liability Company Certificate of Formation of TEGP Management, 
LLC, dated June 29, 2018 (incorporated by reference to Exhibit 3.1 to Tallgrass Energy, LP's Current Report 
on Form 8-K filed on July 2, 2018).

Certificate of Amendment to Certificate of Limited Partnership of Tallgrass Energy GP, LP, dated June 29, 
2018 (incorporated by reference to Exhibit 3.2 to Tallgrass Energy, LP's Current Report on Form 8-K filed on 
July 2, 2018).

Second Amended and Restated Agreement of Limited Partnership of Tallgrass Energy, LP, dated July 1, 2018 
(incorporated by reference to Exhibit 3.3 to Tallgrass Energy, LP's Current Report on Form 8-K filed on July 
2, 2018).

Second Amended and Restated Limited Liability Company Agreement of Tallgrass Energy GP, LLC, dated 
July 1, 2018 (incorporated by reference to Exhibit 3.4 to Tallgrass Energy, LP's Current Report on Form 8-K 
filed on July 2, 2018).

Specimen certificate representing Class A Shares (incorporated by reference to Exhibit 4.1 to Tallgrass Energy 
GP, LP's Registration Statement on Form S-1/A filed April 20, 2015).

Registration Rights Agreement, dated May 12, 2015, by and among Tallgrass Energy GP, LP and each of the 
Initial Holders listed on an annex thereto (incorporated by reference to Exhibit 4.2 to Tallgrass Energy GP, 
LP's Quarterly Report on Form 10-Q filed on June 18, 2015).

Indenture, dated September 1, 2016, among Tallgrass Energy Partners, LP, Tallgrass Energy Finance Corp., 
the Guarantors named therein and U.S. Bank National Association, as trustee. (incorporated by reference to 
Exhibit 4.1 to Tallgrass Energy Partners, LP's Current Report on Form 8-K filed on September 1, 2016).

Form of 5.50% Senior Note (included as Exhibit A in Exhibit 4.1 which is incorporated by reference to 
Exhibit 4.1 to Tallgrass Energy Partners, LP's Current Report on Form 8-K filed on September 1, 2016).

Indenture, dated September 15, 2017, among Tallgrass Energy Partners, LP, Tallgrass Energy Finance Corp., 
the Guarantors named therein and U.S. Bank National Association, as trustee. (incorporated by reference to 
Exhibit 4.1 to Tallgrass Energy Partners, LP's Current Report on Form 8-K filed on September 15, 2017).

190

4.6

4.7

4.8

10.1

10.2†

10.3†

10.4†

10.5

10.6

10.7

10.8

10.9

10.10

10.11

10.12

10.13

10.14

Form of 5.50% Senior Note (included as Exhibit A in Exhibit 4.1 which is incorporated by reference to 
Exhibit 4.1 to Tallgrass Energy Partners, LP's Current Report on Form 8-K filed on September 15, 2017).

Indenture, dated as of September 26, 2018, among Tallgrass Energy Partners, LP, Tallgrass Energy Finance 
Corp., the Guarantors named therein and U.S. Bank National Association, as trustee (incorporated by 
reference to Exhibit 4.1 to Tallgrass Energy, LP's Current Report on Form 8-K filed on September 26, 2018).

Form of 4.75% Senior Note (included as Exhibit A in Exhibit 4.1 which is incorporated by reference to 
Exhibit 4.1 to Tallgrass Energy, LP's Current Report on Form 8-K filed on September 26, 2018).

Omnibus Agreement, dated May 12, 2015, by and among Tallgrass Energy Holdings, LLC, Tallgrass Energy 
GP, LP, TEGP Management, LLC and Tallgrass Equity, LLC (incorporated by reference to Exhibit 10.1 to 
Tallgrass Energy GP, LP's Current Report on Form 8-K filed May 12, 2015).

Form of Employee Equity Participation Share Agreement (incorporated by reference to Exhibit 4.5 to the 
Partnership's Registration Statement on Form S-8 filed on July 17, 2015).

Second Amended and Restated Employment Agreement, dated November 2, 2016, by and among Tallgrass 
Management, LLC, Tallgrass Energy Holdings, LLC, Tallgrass Equity, LLC, Tallgrass MLP GP, LLC, TEGP 
Management, LLC and David G. Dehaemers, Jr. (incorporated by reference to Exhibit 10.4 to Tallgrass 
Energy Partners, LP's Annual Report on Form 10-K filed February 15, 2017).

Form of Employee Equity Participation Unit Agreement (incorporated by reference to Exhibit 4.5 to Tallgrass 
Energy Partners, LP's Registration Statement on Form S-8 filed on June 18, 2013).

Second Amended and Restated Limited Liability Company Agreement of Rockies Express Pipeline LLC, 
dated effective as of January 1, 2010, among Rockies Express Holdings, LLC (as successor by assignment to 
Kinder Morgan W2E Pipeline LLC), TEP REX Holdings, LLC (as successor by assignment to Sempra REX 
Holdings, LLC and P&S Project I, LLC), and P66REX LLC (f/k/a COPREX LLC) (incorporated by reference 
to Exhibit 10.4 to the Partnership's Quarterly Report on Form 10-Q filed on August 3, 2016).

Amendment No. 1 to Second Amended and Restated Limited Liability Company Agreement of Rockies 
Express Pipeline LLC, dated effective as of November 13, 2012, among Kinder Morgan W2E Pipeline LLC, 
TEP REX Holdings, LLC (as successor by assignment to Sempra REX Holdings, LLC and P&S Project I, 
LLC), Rockies Express Holdings, LLC and P66REX LLC (f/k/a COPREX LLC) (incorporated by reference 
to Exhibit 10.5 to the Partnership's Quarterly Report on Form 10-Q filed on August 3, 2016).

Amendment No. 2 to Second Amended and Restated Limited Liability Company Agreement, dated effective 
as of May 5, 2016, among Sempra REX Holdings, LLC and P&S Project I, LLC, Rockies Express Holdings, 
LLC and P66REX LLC (incorporated by reference to Exhibit 10.6 to the Partnership's Quarterly Report on 
Form 10-Q filed on August 3, 2016).

Purchase and Sale Agreement, dated as of January 1, 2017, by and among Tallgrass Energy Partners, LP, 
Tallgrass Development, LP and Tallgrass Operations, LLC (incorporated by reference to Exhibit 10.1 to the 
Partnership's Current Report on Form 8-K filed on January 3, 2017).

Form of Employee Equity Participation Unit Agreement (incorporated by reference to Exhibit 10.1 to 
Tallgrass Energy Partners, LP's Current Report on Form 10-Q filed on November 2, 2017).

Support Agreement, dated as of March 26, 2018, by and among Tallgrass Energy GP, LP, Tallgrass Equity, 
LLC and Tallgrass Energy Partners, LP (incorporated by reference to Exhibit 10.1 to Tallgrass Energy, LP’s 
Current Report on Form 8-K filed on March 27, 2018).

Omnibus Agreement, dated May 17, 2013, by and among Tallgrass Development, LP, Tallgrass Energy 
Partners, LP, Tallgrass MLP GP, LLC and Tallgrass Development GP, LLC (incorporated by reference to 
Exhibit 10.2 to Tallgrass Energy Partners, LP's Current Report on Form 8-K filed May 17, 2013).

Second Amended and Restated Credit Agreement, dated June 2, 2017, by and among Tallgrass Energy 
Partners, LP, Wells Fargo Bank, National Association, as administrative agent, and a syndicate of lenders 
named therein (incorporated by reference to Exhibit 10.1 to Tallgrass Energy Partners, LP’s Quarterly Report 
on Form 10-Q filed on August 2, 2017).

Tallgrass Energy GP, LLC Long-Term Incentive Plan (as amended and restated effective August 2, 2018) 
(incorporated by reference to Exhibit 10.1 to Tallgrass Energy, LP’s Quarterly Report on Form 10-Q filed on 
August 2, 2018).

Tallgrass MLP GP, LLC Long-Term Incentive Plan (as amended and restated effective August 2, 2018) 
(incorporated by reference to Exhibit 10.2 to Tallgrass Energy, LP’s Quarterly Report on Form 10-Q filed on 
August 2, 2018).

191

10.15

10.16

21.1*

23.1*

23.2*

31.1*

31.2*

32.1*

32.2*

Form of Equity Participation Share Agreement (incorporated by reference to Exhibit 10.3 to Tallgrass Energy, 
LP’s Quarterly Report on Form 10-Q filed on August 2, 2018).

Amendment No. 1 to Second Amended and Restated Credit Agreement, dated July 26, 2018, (incorporated by 
reference to Exhibit 10.1 to Tallgrass Energy, LP's Current Report on Form 8-K filed on July 27, 2018).

List of Subsidiaries of Tallgrass Energy, LP.

Consent of PricewaterhouseCoopers LLP on Consolidated Financial Statements of Tallgrass Energy, LP and 
the effectiveness of Tallgrass Energy, LP's internal control over financial reporting.

Consent of PricewaterhouseCoopers LLP on Financial Statements of Rockies Express Pipeline LLC.

Rule 13a-14(a)/15d-14(a) Certification of David G. Dehaemers, Jr.

Rule 13a-14(a)/15d-14(a) Certification of Gary J. Brauchle.

Section 1350 Certification of David G. Dehaemers, Jr.

Section 1350 Certification of Gary J. Brauchle.

101.INS*

XBRL Instance Document.

101.SCH*

XBRL Taxonomy Extension Schema Document.

101.CAL*

XBRL Taxonomy Extension Calculation Linkbase Document.

101.DEF*

XBRL Taxonomy Extension Definition Linkbase Document.

101.LAB*

XBRL Taxonomy Extension Label Linkbase Document.

101.PRE*

XBRL Taxonomy Extension Presentation Linkbase Document.

*  -  filed herewith

†  -  Management contract of compensatory plan or arrangement required to be filed as an exhibit to this Form 10-K pursuant to 

Item 15(b).

192

Item 16. Form 10-K Summary

Not applicable.

193

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused 

this report to be signed on its behalf by the undersigned, thereunto duly authorized.

SIGNATURES

Tallgrass Energy, LP

By: Tallgrass Energy GP, LLC, its general partner

By:

  /s/ David G. Dehaemers, Jr.

  David G. Dehaemers, Jr.

President and Chief Executive Officer of Tallgrass
Energy GP, LLC (the general partner of Tallgrass
Energy, LP)

Date: February 8, 2019 

194

 
SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following 

persons on behalf of the registrant and in the capacities and on the dates indicated.

Name

Title

Date

/s/ David G. Dehaemers, Jr.

David G. Dehaemers, Jr.

Director, President and Chief Executive Officer

February 8, 2019

(Principal Executive Officer)

/s/ Gary J. Brauchle

Gary J. Brauchle

/s/ Gary D. Watkins

Gary D. Watkins

/s/ Frank J. Loverro

Frank J. Loverro

/s/ Stanley de J. Osborne

Stanley de J. Osborne

/s/ Jeffrey A. Ball

Jeffrey A. Ball

/s/ John T. Raymond

John T. Raymond

/s/ William R. Moler

William R. Moler

/s/ Thomas A. Gerke

Thomas A. Gerke

/s/ Roy N. Cook

Roy N. Cook

/s/ Terrance D. Towner

Terrance D. Towner

Executive Vice President and Chief Financial Officer

February 8, 2019

(Principal Financial Officer)

Vice President and Chief Accounting Officer

February 8, 2019

(Principal Accounting Officer)

February 8, 2019

February 8, 2019

February 8, 2019

February 8, 2019

February 8, 2019

February 8, 2019

February 8, 2019

February 8, 2019

Director

Director

Director

Director

Director

Director

Director

Director

195

Tallgrass Energy, LP
Subsidiaries

Exhibit 21.1

Jurisdiction of Organization

Company
Alpha Reclaim Technology, LLC.......................................................................................... Texas
BNN Colorado Water, Inc. .................................................................................................... Colorado
BNN Colorado Water, LLC................................................................................................... Delaware
BNN Great Plains, LLC ........................................................................................................ Delaware
BNN North Dakota, LLC...................................................................................................... Delaware
BNN Recycle, LLC............................................................................................................... Delaware
BNN Redtail, LLC ................................................................................................................ Delaware
BNN South Texas, LLC ........................................................................................................ Delaware
BNN Water Solutions, LLC .................................................................................................. Delaware
BNN West Texas, LLC.......................................................................................................... Delaware
BNN Western, LLC............................................................................................................... Delaware
Cheyenne Connector Pipeline, Inc........................................................................................ Colorado
Cheyenne Connector, LLC.................................................................................................... Delaware
Deeprock Development, LLC ............................................................................................... Delaware
Pawnee Terminal, LLC ......................................................................................................... Delaware
Plaquemines Liquids Terminal, LLC .................................................................................... Delaware
Seahorse Pipeline, LLC......................................................................................................... Delaware
Stanchion Energy, LLC......................................................................................................... Delaware
Tallgrass Cheyenne Connector Holdings, LLC .................................................................... Delaware
Tallgrass Colorado Pipeline, Inc. .......................................................................................... Colorado
Tallgrass Energy Finance Corp. ............................................................................................ Delaware
Tallgrass Energy Investments, LLC ...................................................................................... Delaware
Tallgrass Energy Partners, LP ............................................................................................... Delaware
Tallgrass Equity Investments, LLC....................................................................................... Delaware
Tallgrass Equity, LLC ........................................................................................................... Delaware
Tallgrass Interstate Gas Transmission, LLC ......................................................................... Colorado
Tallgrass PRG Holdings, LLC .............................................................................................. Delaware
Tallgrass PRG Operator, LLC............................................................................................... Delaware
Tallgrass Management, LLC................................................................................................. Delaware
Tallgrass Midstream Gathering, LLC ................................................................................... Colorado
Tallgrass Midstream, LLC .................................................................................................... Delaware
Tallgrass MLP GP, LLC........................................................................................................ Delaware
Tallgrass MLP Operations, LLC ........................................................................................... Delaware
Tallgrass NatGas Operator, LLC........................................................................................... Delaware
Tallgrass PLT Operator, LLC ................................................................................................ Delaware
Tallgrass Pony Express Pipeline, LLC.................................................................................. Delaware
Tallgrass Sterling Terminal, LLC.......................................................................................... Delaware
Tallgrass Terminals, LLC...................................................................................................... Delaware
TEP REX Holdings, LLC...................................................................................................... Delaware
Trailblazer Pipeline Company LLC ...................................................................................... Delaware

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in the Registration Statements on Forms S-3 (No. 333-225382), S-3/ASR 
(No. 333-226086), S-8 (Nos. 333-226537 and 333-205717)  of Tallgrass Energy, LP, of our report dated February 8, 2019, 
relating to the financial statements and the effectiveness of internal control over financial reporting, which appears in this Form 
10 K.

Exhibit 23.1

/s/ PricewaterhouseCoopers LLP

Denver, Colorado
February 8, 2019 

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in the Registration Statements on Forms S-3 (No. 333-225382), S-3/ASR 
(No. 333-226086), S-8 (Nos. 333-226537 and 333-205717) of Tallgrass Energy, LP, of our report dated February 8, 2019, 
relating to the financial statements of Rockies Express Pipeline LLC, which appears in this Form 10 K of Tallgrass Energy, LP.

Exhibit 23.2

/s/ PricewaterhouseCoopers LLP

Denver, Colorado
February 8, 2019

Certification by Chief Executive Officer pursuant to
Rule 13a-14(a) or Rule 15d-14(a) under the Securities Exchange Act of 1934,
as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

I, David G. Dehaemers, Jr., certify that:

Exhibit 31.1

1. 

2. 

3. 

4. 

I have reviewed this Annual Report on Form 10-K of Tallgrass Energy, LP;

Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a 
material fact necessary to make the statements made, in light of the circumstances under which such statements 
were made, not misleading with respect to the period covered by this report;

Based on my knowledge, the financial statements, and other financial information included in this report, fairly 
present in all material respects the financial condition, results of operations and cash flows of the registrant as of, 
and for, the periods presented in this report;

The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls 
and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial 
reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) 

b) 

c) 

d) 

Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be 
designed under our supervision, to ensure that material information relating to the registrant, including its 
consolidated subsidiaries, is made known to us by others within those entities, particularly during the 
period in which this report is being prepared;

Designed such internal control over financial reporting, or caused such internal control over financial 
reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of 
financial reporting and the preparation of financial statements for external purposes in accordance with 
generally accepted accounting principles;

Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this 
report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the 
period covered by this report based on such evaluation; and

Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred 
during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an 
annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s 
internal control over financial reporting; and

5. 

The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal 
control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of 
directors (or persons performing the equivalent functions):

a) 

b) 

All significant deficiencies and material weaknesses in the design or operation of internal control over 
financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, 
summarize and report financial information; and

Any fraud, whether or not material, that involves management or other employees who have a significant 
role in the registrant’s internal control over financial reporting.

By:

  /s/ David G. Dehaemers, Jr.

  David G. Dehaemers, Jr.

President and Chief Executive Officer of Tallgrass
Energy GP, LLC (the general partner of Tallgrass
Energy, LP)

Date: February 8, 2019 

 
 
Certification by Chief Financial Officer pursuant to
Rule 13a-14(a) or Rule 15d-14(a) under the Securities Exchange Act of 1934,
as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

I, Gary J. Brauchle, certify that:

Exhibit 31.2

1. 

2. 

3. 

4. 

I have reviewed this Annual Report on Form 10-K of Tallgrass Energy, LP;

Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a 
material fact necessary to make the statements made, in light of the circumstances under which such statements 
were made, not misleading with respect to the period covered by this report;

Based on my knowledge, the financial statements, and other financial information included in this report, fairly 
present in all material respects the financial condition, results of operations and cash flows of the registrant as of, 
and for, the periods presented in this report;

The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls 
and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial 
reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) 

b) 

c) 

d) 

Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be 
designed under our supervision, to ensure that material information relating to the registrant, including its 
consolidated subsidiaries, is made known to us by others within those entities, particularly during the 
period in which this report is being prepared;

Designed such internal control over financial reporting, or caused such internal control over financial 
reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of 
financial reporting and the preparation of financial statements for external purposes in accordance with 
generally accepted accounting principles;

Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this 
report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of 
the period covered by this report based on such evaluation; and

Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred 
during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an 
annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s 
internal control over financial reporting; and

5. 

The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal 
control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of 
directors (or persons performing the equivalent functions):

a) 

b) 

All significant deficiencies and material weaknesses in the design or operation of internal control over 
financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, 
summarize and report financial information; and

Any fraud, whether or not material, that involves management or other employees who have a significant 
role in the registrant’s internal control over financial reporting.

By:

  /s/ Gary J. Brauchle

  Gary J. Brauchle

Executive Vice President and Chief Financial Officer of
Tallgrass Energy GP, LLC (the general partner of
Tallgrass Energy, LP)

Date: February 8, 2019 

 
 
Certification Pursuant to
18 U.S.C. Section 1350,
as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Exhibit 32.1

In connection with the annual report of Tallgrass Energy, LP (the “Partnership”) on Form 10-K for the year ended 

December 31, 2018, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, David G. 
Dehaemers, Jr., President and Chief Executive Officer of Tallgrass Energy GP, LLC, the general partner of the Partnership, 
certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (“Section 
906”), that, to my knowledge:

1. 

2. 

The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 
1934, as amended; and

The information contained in the Report fairly presents, in all material respects, the financial condition and results 
of operations of the Partnership.

By:

  /s/ David G. Dehaemers, Jr.

  David G. Dehaemers, Jr.

President and Chief Executive Officer of Tallgrass Energy
GP, LLC (the general partner of Tallgrass Energy, LP)

Date: February 8, 2019 

A signed original of this written statement required by Section 906 has been provided to the Partnership and will be 

retained and furnished to the Securities and Exchange Commission or its staff upon request.

 
 
Certification Pursuant to
18 U.S.C. Section 1350,
as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Exhibit 32.2

In connection with the annual report of Tallgrass Energy, LP (the “Partnership”) on Form 10-K for the year ended 
December 31, 2018, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Gary J. 
Brauchle, Executive Vice President and Chief Financial Officer of Tallgrass Energy GP, LLC, the general partner of the 
Partnership, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 
(“Section 906”), that, to my knowledge:

1. 

2. 

The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 
1934, as amended; and

The information contained in the Report fairly presents, in all material respects, the financial condition and results 
of operations of the Partnership.

By:

  /s/ Gary J. Brauchle

  Gary J. Brauchle

Executive Vice President and Chief Financial Officer
and of Tallgrass Energy GP, LLC (the general partner of
Tallgrass Energy, LP)

Date: February 8, 2019 

A signed original of this written statement required by Section 906 has been provided to the Partnership and will be 

retained and furnished to the Securities and Exchange Commission or its staff upon request.

 
 
L AST  PAGE  OF  10 -K

CORPOR ATE  INFORMATION

BOARD OF DIRECTORS 

PUBLIC HEADQUARTERS

David G. Dehaemers Jr.

William R. Moler

Jeffrey A. Ball

Roy N. Cook

Thomas A. Gerke

Frank J. Loverro

Stanley de J. Osborne

John T. Raymond

Terrance D. Towner

EXECUTIVE MANAGEMENT

David G. Dehaemers Jr.
President and Chief Executive Officer

William R. Moler 
Executive Vice President &  
Chief Operating Officer

Gary J. Brauchle 
Executive Vice President &  
Chief Financial Officer 

Christopher R. Jones  
Executive Vice President,  
General Counsel & Secretary 

4200 W. 115th Street
Suite 350
Leawood, KS 66211
(913) 928-6060

TALLGRASS ENERGY 

4200 W. 115th Street
Suite 350
Leawood, KS 66211
(913) 928-6060

370 Van Gordon Street 
Lakewood, CO 80228 
(303) 763-2950

INVESTOR RELATIONS

(913) 928-6012
investor.relations@tallgrassenergy.com 

MEDIA RELATIONS

(913) 928-6014
media.relations@tallgrassenergylp.com

TRANSFER AGENT

American Stock Transfer and Trust

TICKER SYMBOL

NYSE: TGE

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4200 W. 115th Street, Suite 350, Leawood, KS 66211  •  (913) 928-6060  •  www.tallgrassenergy.com