CenterPoint Energy Annual Report 2017

FY2017 Annual Report · CenterPoint Energy

Loading PDF…

LEADERSHIP
through Vision

2017 ANNUAL REPORT

CNP_AR_prod_0307.indd 1

3/7/18 2:50 PM

OUR PEOPLE
Electricity and natural gas are more than necessities –
they’re expected. Our nearly 8,000 employees work hard
every day to deliver energy to the millions we serve across
our service territory, no matter the challenge.

OUR PROMISE
Our brand promise of Always There represents a
commitment to make lives more comfortable, productive
and enjoyable. Through the past 150 years, we’ve become
an essential partner in our communities. And we’ll strive to
maintain our partnerships for the next 150.

OUR PERFORMANCE
Our businesses – electric transmission and distribution,
natural gas distribution and energy services – are focused
on disciplined execution of our Operate, Serve, Grow strategy.
We strive for consistently solid operational and financial
performance, earnings growth, dividend increases and
shareholder value.

OUR PERSPECTIVE
Safe, reliable energy delivery is our priority. At the same
time, we’re investing in innovation. From infrastructure
advancements to technologies that enhance safety and
service, we have our sights set on a future that benefits our
shareholders, customers, employees and communities.

Our vision to lead the nation in delivering energy, service
and value drives us. And our values of safety, integrity,
accountability, initiative and respect will continue to guide
us, every step of the way.

CNP_AR_prod_0307.indd 2

3/7/18 2:50 PM

POWER ALERT SERVICE

This free service automatically notifies
enrolled customers about power outages,
including the cause, the estimated time
for repairs and when the problem has
been resolved.

SERVING THE NEEDS
OF OUR CUSTOMERS

NATURAL GAS LEAK
DETECTION TECHNOLOGY

Our competitive natural gas
sales and services business
meets the needs of more than
100,000 customers in 33 states.

The data we collect from our mobile
advanced natural gas leak detection
technology is used to help prioritize
pipeline replacement projects and
assist in locating issues.

Added
70,000+
metered
customers

52"

of rain from
Hurricane
Harvey

146,000
hours
volunteered

HURRICANE HARVEY

The smart grid enabled us to
quickly isolate problems and restore
power, avoiding nearly 41 million
outage minutes. We made 1.3 million
power restorations and responded
to more than 8,200 natural gas
emergency calls. Eighty-six percent
of customers surveyed felt we were
prepared to respond.

1 million
Power Alert
Service
subscribers

Top 10
Natural Gas
Marketer

Using
advanced
natural gas
technology
to enhance
safety and reduce
emissions

$6.5 million
contributed to
nonprofits

3.23 billion
cubic feet of
natural gas saved

170K+

megawatt
hours saved

DEDICATED TO
OUR COMMUNITIES

REDUCING OUR
CARBON FOOTPRINT

Our financial support to nonprofit
organizations in our communities includes
United Way organizations, Junior
Achievement of Southeast Texas and
March of Dimes, among others.

Our natural gas conservation
programs saved customers nearly
$26 million, which equates to the
annual usage of natural gas for
38,000 homes.

In the communities where we live and
work, we focus our time and energy on
our three strategic giving pillars: education,
community development and health
and human services.

Our more than 20 electric energy-
efficiency programs reduced the
carbon footprint by 130,000 metric
tons, or the equivalent energy use of
14,000 vehicles driven for one year.

CNP_AR_prod_0307.indd 4

3/7/18 2:50 PM

CNP_AR_prod_0307.indd 5

3/7/18 2:50 PM

2017 A NN UA L R EPORT : PAGE 1

Dear Fellow Stakeholder,

We believe that vision and leadership are
inextricably linked. When vision inspires
leadership, and leadership propels vision,
our shareholders, customers, employees
and communities all benefit.

Our vision to lead the nation in delivering energy, service and
value drives our strategy and performance. At CenterPoint Energy,
leadership through vision means that we are unwavering in our
commitment to safely and reliably deliver electricity and natural
gas to millions of people.

At the same time, we never rest when it comes to our future.
As consumer expectations increase and technology evolves, we
continue to invest in solutions to better serve and interact with our
customers. These investments enable us to deliver energy more
safely and reliably, build customer loyalty and grow our business.

We believe that being committed to safe operational performance,
serving our growing customer base and providing value-added
products and services help position us to deliver strong, sustainable
results in the future.

PERFORMING WITH DISCIPLINE

2017 was another excellent year for our company. We reported
net income of $1.8 billion, or $4.13 per diluted share. Our annual
adjusted earnings, using the same basis as our guidance,
were $3.93 per diluted share, which includes a deferred tax
re-measurement benefit in 2017 of $1.1 billion.

Excluding the tax benefit, 2017 net income on a guidance basis
was $593 million, or $1.37 per diluted share, consisting of
$0.99 from utility operations and $0.38 from our investment
in Enable Midstream Partners. This reflects strong underlying
performance across our businesses.

The Tax Cuts and Jobs Act of 2017 contains several changes
that will impact CenterPoint Energy, including the reduction of the
corporate income tax rate from 35 to 21 percent, which became
effective Jan. 1, 2018. We anticipate that a significant portion of
these tax savings will be returned to ratepayers with the approval
of our regulators.

Our continued confidence in our ability to deliver sustainable
earnings and cash flow led us to raise our dividend for the
13th consecutive year in 2018. In December 2017, our board of
directors declared a regular quarterly cash dividend of 27.75 cents
per share of common stock. This represented an approximately
4 percent increase from our previous quarterly dividend. If
annualized, the dividend equates to $1.11 per share.

Our total shareholder return for 2017 was 19.59 percent, exceeding
the S&P 500 Utilities Index return of 12.11 percent. We closely tracked
with the broader S&P 500 Index return, which was 21.83 percent.

EXECUTING OUR STRATEGY

Our strong record of financial performance and shareholder
value creation is the result of continued focus on our strategy
of Operate, Serve, Grow. Our strategy encompasses the
company’s competitive advantages in technology, innovation,
customer service and regulatory expertise. We focus on the
following key imperatives to drive long-term, peer-leading
earnings growth:

• Ensure the safe, reliable and environmentally responsible

delivery of energy;

• Achieve top-quartile safety culture and performance;

• Execute our rate recovery strategy;

• Serve as our customers’ trusted energy solutions provider;

• Add value through emerging technology and innovation; and

• Build and develop a world-class workforce.

Creating sustainable shareholder value includes investing in
infrastructure that addresses the needs of the communities
we serve. Our strategy also focuses on controlling expenses,
maintaining liquidity, ensuring access to capital, optimizing our
portfolio, and constructively growing dividends.

CNP_AR_prod_0307.indd 6

3/7/18 2:50 PM

PAGE 2 : CENTER POINT ENERGY

Our board of directors reviews our strategy annually. This process
ensures that we meet the energy delivery infrastructure needs
in our growing service territory and are prepared for changes
occurring in our industry.

DELIVERING WITH EXCELLENCE

Our business segments performed very well in 2017. The electric
transmission and distribution business produced $535 million
in operating income, excluding transition bond companies. We
benefited from rate recovery and growth with the addition of
nearly 41,000 new customers.

In 2017, capital investments totaled $924 million to support
customer growth, reliability and grid modernization. The Brazos
Valley Connection (BVC), a 60-mile, 345-kilovolt (kV) electric
transmission line that runs from Harris County to Grimes County
in Texas, is expected to go into service two months ahead of
schedule in 2018 and under budget. The BVC is part of a larger
project that imports power from north Texas to meet growing
demand and reliability needs.

To meet the growing needs of the petrochemical industry in the
greater Freeport, Texas area, the Electric Reliability Council of
Texas endorsed the need for an approximately $250 million
transmission project. Known as the Bailey to Jones Creek project,
it will consist of enhancing two existing substations and building
a 345-kV transmission line.

Our natural gas distribution business also had a strong year.
We serve more than 3.4 million customers in six states. In 2017,
we added more than 30,000 customers. Our operating income
of $328 million was driven by growth and execution of our
rate strategy.

We continue to benefit from annual cost recovery mechanisms
across most of our service territory. In 2017, we received approval
from regulatory authorities to change natural gas distribution rates
for Houston and surrounding areas. As a result, a uniform rate for
the cost of service and the cost of natural gas was established.

In 2017, we invested $523 million in our natural gas distribution
business to support growth and improve the safety and reliability
of our systems. For example, we completed replacing our cast-iron
pipelines in Texas and Minnesota. We expect to complete our
replacement program across the remainder of our service territory
in 2018. Data collected through our advanced leak detection
technology, Picarro, is used to prioritize pipe replacements.
The technology also aids in our emission-reduction efforts.

Our competitive natural gas sales and services business,
CenterPoint Energy Services (CES), provides a wide range of
competitive energy services to meet the needs of our more than
100,000 customers in 33 states. In 2017, CES produced operating
income of $46 million, excluding a mark-to-market gain of $79 million.
With two recent acquisitions, we believe this business is poised
for strong growth.

“Leadership through

vision means that we
must proactively embrace
change and innovation.”

SCOTT M. PROCHAZKA
President & CEO

19.59%
total
shareholder
return

“ Investing in

infrastructure addresses
the needs of the
communities we serve.”

MILTON CARROLL
Executive Chairman
of the Board

$1.8
billion*
net income
reported/
$593 million*
adjusted

CNP_AR_prod_0307.indd 7

3/7/18 2:50 PM

2017 A NN UA L R EPORT : PAGE 3

Five-Year Cumulative
Total Return Comparison
for the Fiscal Years
Ended December 31(1)(2)

CenterPoint Energy
S&P 500 Index
S&P 500 Utilities Index

$250

$200

$150

$100

$50

(1) Assumes that the value of the investment in the

common stock and each index was $100 on December
31, 2012, and that all dividends were reinvested.
Historical stock performance is not necessarily
indicative of future stock performance.

(2)

2012

Our retail services include competitive natural gas energy
solutions for residential, commercial and industrial customers.
Through its growth strategy and commitment to customer service,
CES has earned a reputation as an outstanding energy service
provider. In 2017, Natural Gas Intelligence ranked CES among
the top 10 North American natural gas marketers.

CenterPoint Energy Intrastate Pipelines (CEIP) offers industrial
end users competitive alternatives for natural gas supply. CEIP
owns and operates 240 miles of intrastate pipelines in Texas
and Louisiana that serve more than 170 delivery points. It also
has more than 2 billion cubic feet of natural gas storage capacity
under long-term contract in Houston.

Equity earnings from the ownership of 54.1 percent of the common
units representing limited partner interests in Enable Midstream
Partners, a publicly traded master limited partnership that owns
and operates natural gas and crude oil infrastructure assets, were
$265 million. The results were driven in part by strong rig activity
and continued volume growth in this midstream investment.

$1.1
billion
operating
income

$4.13*
earnings
per diluted share
reported/
$1.37* adjusted

2013

2014

2015

2016

2017

PUTTING PEOPLE FIRST

Leadership through vision not only drives what we do from a
strategic and operational standpoint; it also shapes how we do
it. We strive to make a positive difference for our stakeholders by
living our core values of safety, integrity, accountability, initiative
and respect.

One of the most devastating storms in history, Hurricane Harvey,
caused unprecedented flooding in our service territory in late
August and early September 2017. Southeast Texas was inundated
with 52 inches of rain – an amount that is typically seen over an
entire year. In the face of incredibly difficult conditions, our electric
and natural gas crews, with the support of contractors and mutual
assistance personnel, used air boats, drones and amphibious
vehicles to reach our equipment.

Our electric operations crews worked more than 350,000 hours
during the natural disaster, completing nearly 1.3 million restorations.
Natural gas operations responded to more than 8,200 natural
gas emergency orders and assessed nearly 125,000 meters for
damage due to flooding. In a survey conducted after the storm,
86 percent of our customers agreed that we were prepared to
respond to Hurricane Harvey. Nearly 60 percent indicated that our
response improved their opinion of our company.

For our outstanding response to Hurricane Harvey and a
microburst in Sealy, Texas that knocked out power to thousands
of customers in May 2017, we received Emergency Recovery
Awards from the Edison Electric Institute (EEI), an association of
U.S. investor-owned electric companies. We were also recognized
with a third EEI award for our mutual restoration assistance in
Florida following Hurricane Irma in September 2017.

We are extremely proud to be part of the national effort to restore
power to Puerto Rico. More than four months after Hurricane
Maria made landfall, much of the island remained without power.
We sent 140 employees, along with 60 bucket trucks, support
vehicles and electric supplies, to Puerto Rico to help accelerate
power restoration.

* See table on back inside cover for reconciliation of these non-GAAP measures.

CNP_AR_prod_0307.indd 8

3/7/18 2:50 PM

PAGE 4 : CENTER POINT ENERGY

Our employees also delivered when the world was watching
the 2017 Super Bowl and World Series events in Houston, as
well as the 2018 Super Bowl in Minneapolis. During every pass
and pitch, we were behind the scenes ensuring an uninterrupted
sports championship experience.

We believe our ongoing efforts to sustain a strong safety
culture are helping to reduce injuries and incidents. Through
Safety Forward, our companywide approach to safety performance,
we achieved excellent results in several areas, including
recordable incident rates. At the center of our safety programs
are documented observations by employees to encourage safe
work practices. Every employee is empowered to stop work
if they observe unsafe conditions. Our top priority, day in and
day out, is the safety of our employees, contractors, systems
and communities.

SERVING OUR CUSTOMERS AND COMMUNITIES

Our residential customers ranked us highest in customer
satisfaction among large natural gas utilities in the South region
in an annual study by J.D. Power and Associates. Cogent Energy
Reports, which surveys customers across the deregulated Texas
electricity market on their transmission-distribution service
providers, ranked CenterPoint Energy best-in-class in brand
trust, product experience and operational satisfaction. We also
received the Smart Energy Consumer Collaboratives’ Best
Practice Award for a customer-focused culture.

In late 2017, we enhanced our My Account self-service web
tool, enabling Houston-area customers to manage their natural
gas service and view electric usage online for the first time.
Throughout our service territory, the refreshed My Account
experience allows customers to authorize other users, manage
multiple natural gas accounts and add multiple ways to receive
alerts. Also in December 2017, we enrolled the millionth customer
for our Power Alert Service notification tool.

Our electric energy-efficiency programs saved more than
170,000 megawatt hours of electricity in 2017, benefiting
ratepayers across all customer classes. For the 13th consecutive
year, we were recognized as an ENERGY STAR Sustained
Excellence partner for promoting certified homes. CenterPoint
Energy has incentivized more of these energy-efficient homes
than any other electric utility in the country. In 2017, we also
earned the ENERGY STAR Partners of the Year Award from the
U.S. Environmental Protection Agency.

Rebates from our Conservation Improvement Program encourage
natural gas customers in Arkansas, Minnesota, Mississippi and
Oklahoma to choose energy-efficient equipment. In 2017, our
customers saved more than 3.23 billion cubic feet of natural gas
for an energy cost savings of nearly $26 million – the equivalent
of the annual energy usage of more than 38,000 homes. The
University of Minnesota received a record $2 million energy
conservation rebate check for the construction of its high-
efficiency natural gas combined heat and power plant.

Additionally, we received recognition for our community support.
In 2017, we were honored with the Junior Achievement U.S.
President’s Volunteer Service Award for our volunteerism. The
Southern Gas Association Community Service Award recognized
our natural gas safety education website. For volunteering the
most hours among large companies in Houston, we received the
Philanthropy Award from the Houston Business Journal.

In the communities where we live and work, we focus our time
and energy on our three strategic giving pillars: education,
community development and health and human services. In 2017,
our employees volunteered more than 146,000 hours, valued
at approximately $3.5 million. As a company, we contributed
$6.5 million to nonprofit organizations in our communities.

FOCUSING ON THE FUTURE

Leadership through vision means that we must proactively
embrace change and innovation in our industry by taking decisive
steps to deliver value to our shareholders, customers and other
stakeholders. To that end, we have two fundamental beliefs: the
electric grid will be the platform for the future electric system, and
natural gas will continue to fuel our nation, both in terms of direct
use and power generation.

Operationally and strategically, we believe CenterPoint Energy is
well positioned to meet customers’ future energy delivery needs
through a combination of traditional and innovative solutions.
Over the next five years, we expect to make capital investments
totaling approximately $8.3 billion. We will invest our capital to
support safety, growth, reliability, grid hardening and infrastructure
replacement, as well as to meet regulatory requirements.

We believe we are poised to capture opportunities by continuing
to identify ways for leading technologies to improve power quality
and reliability. We are partnering with the Electric Power Research
Institute to deliver a distributed energy resource plan for the
future. And we will build our competency in analytics and invest
in robotics, cognitive computing and machine-to-machine learning
to drive even greater efficiencies.

Importantly, we will continue to invest in our people to attract,
grow and retain a world-class workforce. We are partnering with
Texas State Technical College and Houston Community College
to develop the utility workforce of the future.

We are grateful to our employees and board of directors for their
continued commitment to CenterPoint Energy. Their dedication
drives our achievements and enables us to lead through vision.
We would also like to thank our shareholders, customers and
communities for their confidence in our company. Today and
always, we will work hard to maintain your support.

Milton Carroll
Executive Chairman of the Board

Scott M. Prochazka
President & CEO

CNP_AR_prod_0307.indd 9

3/7/18 2:50 PM

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, 2017

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

FOR THE TRANSITION PERIOD FROM TO

Commission File Number 1-31447
______________________
CenterPoint Energy, Inc.

(Exact name of registrant as specified in its charter)

(State or other jurisdiction of incorporation or organization)

(I.R.S. Employer Identification No.)

Texas

74-0694415

1111 Louisiana
Houston, Texas 77002
(Address and zip code of principal executive offices)

(713) 207-1111
(Registrant’s telephone number, including area code)

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

Title of each class

Common Stock, $0.01 par value

Name of each exchange on which registered

New York Stock Exchange
Chicago Stock Exchange

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

Securities registered pursuant to Section 12(g) of the Act:
None

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

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

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted
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 and post such
files). Yes

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein and will not be contained, to the best of the 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, or a smaller reporting company. See definitions of “large accelerated

filer”, “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer

Accelerated filer

Non-accelerated filer

Smaller reporting company

Emerging growth company

(Do not check if a smaller
reporting 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

The aggregate market value of the voting stock held by non-affiliates of CenterPoint Energy, Inc. (CenterPoint Energy) was $11,722,467,012 as of June 30, 2017, using the definition
of beneficial ownership contained in Rule 13d-3 promulgated pursuant to the Securities Exchange Act of 1934 and excluding shares held by directors and executive officers. As of
February 9, 2018, CenterPoint Energy had 431,048,125 shares of Common Stock outstanding. Excluded from the number of shares of Common Stock outstanding are 166 shares held
by CenterPoint Energy as treasury stock.

DOCUMENTS INCORPORATED BY REFERENCE

Portions of the definitive proxy statement relating to the 2018 Annual Meeting of Shareholders of CenterPoint Energy, which will be filed with the Securities and Exchange Commission

within 120 days of December 31, 2017, are incorporated by reference in Item 10, Item 11, Item 12, Item 13 and Item 14 of Part III of this Form 10-K.

TABLE OF CONTENTS

PART I

Item 1.
Item 1A.
Item 1B.
Item 2.
Item 3.
Item 4.

Item 5.

Item 6.
Item 7.
Item 7A.
Item 8.
Item 9.
Item 9A.
Item 9B.

Item 10.
Item 11.
Item 12.
Item 13.
Item 14.

Item 15.
Item 16.

Business........................................................................................................................................................
Risk Factors..................................................................................................................................................
Unresolved Staff Comments ........................................................................................................................
Properties......................................................................................................................................................
Legal Proceedings ........................................................................................................................................
Mine Safety Disclosures...............................................................................................................................

PART II

Market for Registrants’ Common Equity, Related Stockholder Matters and Issuer Purchases of Equity

Securities...................................................................................................................................................
Selected Financial Data ................................................................................................................................
Management’s Discussion and Analysis of Financial Condition and Results of Operations.......................
Quantitative and Qualitative Disclosures About Market Risk .....................................................................
Financial Statements and Supplementary Data ............................................................................................
Changes in and Disagreements with Accountants on Accounting and Financial Disclosure ......................
Controls and Procedures...............................................................................................................................
Other Information.........................................................................................................................................

PART III

Directors, Executive Officers and Corporate Governance...........................................................................
Executive Compensation..............................................................................................................................
Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters....
Certain Relationships and Related Transactions, and Director Independence.............................................
Principal Accounting Fees and Services ......................................................................................................

PART IV

Exhibits and Financial Statement Schedules................................................................................................
Form 10-K Summary ...................................................................................................................................

Page
1
17
42
42
42
42

43
44
45
70
72
125
125
128

128
128
129
129
129

129
129

ADFIT.................................................................
ADMS..................................................................
AEM ....................................................................

AFUDC ...............................................................
AMAs...................................................................
AMS.....................................................................
AOL .....................................................................
APSC ...................................................................
ArcLight ..............................................................
ARO.....................................................................
ASC......................................................................
ASU .....................................................................
AT&T...................................................................
AT&T Common...................................................
Bcf .......................................................................
Btu .......................................................................
BDA.....................................................................

GLOSSARY

Accumulated deferred federal income taxes

Advanced Distribution Management System

Atmos Energy Marketing, LLC, previously a wholly-owned subsidiary
of Atmos Energy Holdings, Inc., a wholly-owned subsidiary of Atmos
Energy Corporation
Allowance for funds used during construction
Asset Management Agreements
Advanced Metering System
AOL Inc.
Arkansas Public Service Commission
ArcLight Capital Partners, LLC
Asset retirement obligation
Accounting Standards Codification
Accounting Standards Update
AT&T Inc.
AT&T common stock
Billion cubic feet
British thermal units
Billing Determinant Adjustment, which is a revenue stabilization
mechanism used to adjust revenues impacted by declines in natural gas
consumption which occurred after the most recent rate case

Bond Companies................................................. Wholly-owned, bankruptcy remote entities formed solely for the purpose

Brazos Valley Connection...................................

CEA .....................................................................
CEIP....................................................................
CenterPoint Energy ............................................
CERC Corp. ........................................................
CERC ..................................................................
CERCLA..............................................................

CES......................................................................

of purchasing and owning transition or system restoration property
through the issuance of Securitization Bonds
A portion of the Houston region transmission project between Houston
Electric’s Zenith substation and the Gibbons Creek substation owned by
the Texas Municipal Power Agency
Commodities Exchange Act of 1936
CenterPoint Energy Intrastate Pipelines, LLC
CenterPoint Energy, Inc., and its subsidiaries
CenterPoint Energy Resources Corp.
CERC Corp., together with its subsidiaries
Comprehensive Environmental Response, Compensation and Liability
Act of 1980, as amended

CenterPoint Energy Services, Inc., a wholly-owned subsidiary of CERC
Corp.
Commodity Futures Trading Commission
Charter Communications, Inc. common stock

CFTC...................................................................
Charter Common ................................................
Charter merger ................................................... Merger of Charter Communications, Inc. and Time Warner Cable Inc.
CIP.......................................................................
COLI....................................................................
Continuum ..........................................................

Conservation Improvement Program
Corporate-owned life insurance

DCRF ..................................................................
Dodd-Frank Act ..................................................
DOE.....................................................................
DOT.....................................................................
Dth.......................................................................
EBITDA ..............................................................
EDIT....................................................................

The retail energy services business of Continuum Retail Energy
Services, LLC, including its wholly-owned subsidiary Lakeshore Energy
Services, LLC and the natural gas wholesale assets of Continuum Energy
Services, LLC
Distribution Cost Recovery Factor
Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010
U.S. Department of Energy
U.S. Department of Transportation
Dekatherms
Earnings before interest, taxes, depreciation and amortization
Excess deferred income taxes

GLOSSARY (cont.)
Energy Efficiency Cost Recovery
Energy Efficiency Cost Recovery Factor
Enable Gas Transmission, LLC
U.S. Energy Information Administration
Enable Midstream Partners, LP
Environmental Protection Agency
Energy Policy Act of 2005
Electric Reliability Council of Texas
ERCOT Independent System Operator
Employee Retirement Income Security Act of 1974
Electric Reliability Organization
Financial Accounting Standards Board
Federal Energy Regulatory Commission
Fitch, Inc.
Formula Rate Plan
Platts gas daily indices
GenOn Energy, Inc.
Greenhouse gases
Gas Reliability Infrastructure Program
Gigawatt-hours
CenterPoint Energy Houston Electric, LLC and its subsidiaries
Heating, ventilation and air conditioning
International Brotherhood of Electrical Workers
Interstate Commerce Act of 1887
Intelligent Grid
Internal Revenue Service
Kilovolt
London Interbank Offered Rate
Liquefied natural gas
Louisiana Public Service Commission
Long-term incentive plans

EECR ..................................................................
EECRF................................................................
EGT .....................................................................
EIA ......................................................................
Enable .................................................................
EPA......................................................................
EPAct of 2005 .....................................................
ERCOT................................................................
ERCOT ISO ........................................................
ERISA..................................................................
ERO.....................................................................
FASB ...................................................................
FERC ..................................................................
Fitch ....................................................................
FRP .....................................................................
Gas Daily.............................................................
GenOn .................................................................
GHG ....................................................................
GRIP....................................................................
GWh ....................................................................
Houston Electric .................................................
HVAC ..................................................................
IBEW...................................................................
ICA ......................................................................
IG.........................................................................
IRS.......................................................................
kV.........................................................................
LIBOR.................................................................
LNG.....................................................................
LPSC ...................................................................
LTIPs...................................................................
Meredith .............................................................. Meredith Corporation
MGPs................................................................... Manufactured gas plants
MLP..................................................................... Master Limited Partnership
MMBtu ................................................................
MMcf................................................................... Million cubic feet
Moody’s ............................................................... Moody’s Investors Service, Inc.
MPSC .................................................................. Mississippi Public Service Commission
MPUC.................................................................. Minnesota Public Utilities Commission
MRT ....................................................................
NAV .....................................................................
NECA ..................................................................
NERC ..................................................................
NESHAPS...........................................................
NGA.....................................................................
NGD ....................................................................
NGLs ...................................................................
NGPA...................................................................

Enable-Mississippi River Transmission, LLC
Net asset value
National Electrical Contractors Association
North American Electric Reliability Corporation

National Emission Standards for Hazardous Air Pollutants

One million British thermal units

Natural gas distribution business

Natural Gas Act of 1938

Natural Gas Policy Act of 1978

Natural gas liquids

iii

NGPSA ................................................................
NRG.....................................................................
NYMEX...............................................................
NYSE...................................................................
OCC.....................................................................
OGE.....................................................................
PBRC...................................................................
PHMSA ...............................................................
PRPs ....................................................................
PUCT...................................................................
Railroad Commission .........................................
RCRA...................................................................
Reliant Energy ....................................................
REP .....................................................................
RICE MACT .......................................................

ROE.....................................................................
RRA .....................................................................
RRI ......................................................................
RSP......................................................................
SEC......................................................................

SESH...................................................................
Securitization Bonds...........................................
Series A Preferred Units .....................................

S&P .....................................................................

TBD .....................................................................
TCEH Corp. ........................................................

TCJA....................................................................

TCOS...................................................................
TDU.....................................................................
Time.....................................................................
Time Common.....................................................
Transition Agreements........................................

Texas RE .............................................................
TW .......................................................................
TW Common .......................................................
TWC ....................................................................
TWC Common ....................................................
TW Securities ......................................................
VaR ......................................................................

GLOSSARY (cont.)

Natural Gas Pipeline Safety Act of 1968

NRG Energy, Inc.

New York Mercantile Exchange

New York Stock Exchange

Oklahoma Corporation Commission

OGE Energy Corp.

Performance Based Rate Change

Pipeline and Hazardous Materials Safety Administration

Potentially responsible parties

Public Utility Commission of Texas

Railroad Commission of Texas

Resource Conservation and Recovery Act of 1976

Reliant Energy, Incorporated

Retail electric provider

Reciprocating Internal Combustion Engines Maximum Achievable
Control Technology

Return on equity

Rate Regulation Adjustment

Reliant Resources, Inc.

Rate Stabilization Plan

Securities and Exchange Commission

Southeast Supply Header, LLC

Transition and system restoration bonds

Enable’s 10% Series A Fixed-to-Floating Non-Cumulative Redeemable
Perpetual Preferred Units, representing limited partner interests in
Enable

Standard & Poor’s Ratings Services, a division of The McGraw-Hill
Companies

To be determined

Formerly Texas Competitive Electric Holdings Company LLC,
predecessor to Vistra Energy Corp. whose major subsidiaries include
Luminant and TXU Energy

Tax reform legislation informally called the Tax Cuts and Jobs Act of
2017

Transmission Cost of Service

Transmission and distribution utility

Time Inc.

Time common stock

Services Agreement, Employee Transition Agreement, Transitional
Seconding Agreement and other agreements entered into in connection
with the formation of Enable

Texas Reliability Entity

Time Warner Inc.

TW common stock

Time Warner Cable Inc.

TWC common stock

Charter Common, Time Common and TW Common

Value at Risk

Verizon.................................................................
VIE ......................................................................
Vistra Energy Corp. ............................................

ZENS...................................................................
2002 Act...............................................................
2006 Act...............................................................
2011 Act...............................................................
2016 Act...............................................................

GLOSSARY (cont.)

Verizon Communications, Inc.

Variable interest entity

Texas-based energy company focused on the competitive energy and
power generation markets

2.0% Zero-Premium Exchangeable Subordinated Notes due 2029

Pipeline Safety Improvement Act of 2002

Pipeline Inspection, Protection, Enforcement and Safety Act of 2006

Pipeline Safety, Regulatory Certainty, and Job Creation Act of 2011

Protecting our Infrastructure of Pipelines and Enhancing Safety Act
of 2016

CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING INFORMATION

From time to time we make statements concerning our expectations, beliefs, plans, objectives, goals, strategies, future events
or performance and underlying assumptions and other statements that are not historical facts. These statements are “forward-
looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Actual results may differ materially
from those expressed or implied by these statements. You can generally identify our forward-looking statements by the words
“anticipate,” “believe,” “continue,” “could,” “estimate,” “expect,” “forecast,” “goal,” “intend,” “may,” “objective,” “plan,”
“potential,” “predict,” “projection,” “should,” “target,” “will” or other similar words.

We have based our forward-looking statements on our management’s beliefs and assumptions based on information reasonably
available to our management at the time the statements are made. We caution you that assumptions, beliefs, expectations, intentions
and projections about future events may and often do vary materially from actual results. Therefore, we cannot assure you that
actual results will not differ materially from those expressed or implied by our forward-looking statements.

Some of the factors that could cause actual results to differ from those expressed or implied by our forward-looking statements
are described under “Risk Factors” in Item 1A and “Management’s Discussion and Analysis of Financial Condition and Results
of Operations — Certain Factors Affecting Future Earnings” and “ — Liquidity and Capital Resources — Other Matters — Other
Factors That Could Affect Cash Requirements” in Item 7 of this report, which discussions are incorporated herein by reference.

You should not place undue reliance on forward-looking statements. Each forward-looking statement speaks only as of the

date of the particular statement, and we undertake no obligation to update or revise any forward-looking statements.

Item 1.

Business

Overview

PART I

OUR BUSINESS

We are a public utility holding company. Our operating subsidiaries own and operate electric transmission and distribution
and natural gas distribution facilities, supply natural gas to commercial and industrial customers and electric and natural gas utilities
and own interests in Enable as described below. Our simplified corporate structure is shown below:

(1) Houston Electric engages in the electric transmission and distribution business in the Texas Gulf Coast area that includes

the city of Houston.

(2) Bond Companies are wholly-owned, bankruptcy remote entities formed solely for the purpose of purchasing and owning

transition or system restoration property through the issuance of Securitization Bonds.

(3) NGD operates natural gas distribution systems in six states.

(4) CES obtains and offers competitive variable and fixed-price physical natural gas supplies and services primarily to

commercial and industrial customers and electric and natural gas utilities in 33 states.

(5) Represents limited partner interests in Enable, which owns, operates and develops natural gas and crude oil infrastructure
assets. For additional information regarding our interest in Enable, see Note 10 to our consolidated financial statements.

Our reportable business segments are Electric Transmission & Distribution, Natural Gas Distribution, Energy Services,
Midstream Investments and Other Operations. For a discussion of operating income by segment, see “Management’s Discussion
and Analysis of Financial Condition and Results of Operations — Results of Operations by Business Segment” in Item 7 of Part
II of this report. For additional information about the segments, see Note 18 to our consolidated financial statements. From time
to time, we consider the acquisition or the disposition of assets or businesses.

Our principal executive offices are located at 1111 Louisiana, Houston, Texas 77002 (telephone number: 713-207-1111).

We make available free of charge on our internet website our annual report on Form 10-K, quarterly reports on Form 10-Q,
current reports on Form 8-K and amendments to those reports filed or furnished pursuant to Section 13(a) or 15(d) of the Securities
Exchange Act of 1934 as soon as reasonably practicable after we electronically file such reports with, or furnish them to, the SEC.
Additionally, we make available free of charge on our Internet website:

•

our Code of Ethics for our Chief Executive Officer and Senior Financial Officers;

our Ethics and Compliance Code;

our Corporate Governance Guidelines; and

the charters of the audit, compensation, finance and governance committees of our Board of Directors.

Any shareholder who so requests may obtain a printed copy of any of these documents from us. Changes in or waivers of our
Code of Ethics for our Chief Executive Officer and Senior Financial Officers and waivers of our Ethics and Compliance Code for
directors or executive officers will be posted on our Internet website within five business days of such change or waiver and
maintained for at least 12 months or timely reported on Item 5.05 of Form 8-K.

Our website address is www.centerpointenergy.com. Investors should also note that we announce material financial information
in SEC filings, press releases and public conference calls. Based on guidance from the SEC, we may use the investor relations
section of our website to communicate with our investors. It is possible that the financial and other information posted there could
be deemed to be material information. Except to the extent explicitly stated herein, documents and information on our website
are not incorporated by reference herein.

Electric Transmission & Distribution

Houston Electric is a transmission and distribution electric utility that operates wholly within the state of Texas and is a
member of ERCOT. ERCOT serves as the independent system operator and regional reliability coordinator for member electric
power systems in most of Texas. The ERCOT market represents approximately 90% of the demand for power in Texas and is one
of the nation’s largest power markets. The ERCOT market operates under the reliability standards developed by the NERC,
approved by the FERC and monitored and enforced by the Texas RE. The PUCT has primary jurisdiction over the ERCOT market
to ensure the adequacy and reliability of electricity supply across the state’s main interconnected power transmission grid. Neither

Houston Electric nor any other subsidiary of CenterPoint Energy makes direct retail or wholesale sales of electric energy or owns
or operates any electric generating facilities. Houston Electric’s service territory is depicted below:

Electric Transmission

On behalf of REPs, Houston Electric delivers electricity from power plants to substations, from one substation to another and
to retail electric customers taking power at or above 69 kV in locations throughout Houston Electric’s certificated service territory.
Houston Electric constructs and maintains transmission facilities and provides transmission services under tariffs approved by the
PUCT.

The ERCOT ISO is responsible for operating the bulk electric power supply system in the ERCOT market. Houston Electric’s
transmission business, along with those of other owners of transmission facilities in Texas, supports the operation of the ERCOT
ISO. Houston Electric participates with the ERCOT ISO and other ERCOT utilities to plan, design, obtain regulatory approval
for and construct new transmission lines necessary to increase bulk power transfer capability and to remove existing constraints
on the ERCOT transmission grid.

Electric Distribution

In ERCOT, end users purchase their electricity directly from certificated REPs. Houston Electric delivers electricity for REPs
in its certificated service area by carrying lower-voltage power from the substation to the retail electric customer. Houston Electric’s
distribution network receives electricity from the transmission grid through power distribution substations and delivers electricity
to end users through distribution feeders. Houston Electric’s operations include construction and maintenance of distribution
facilities, metering services, outage response services and call center operations. Houston Electric provides distribution services
under tariffs approved by the PUCT. PUCT rules and market protocols govern the commercial operations of distribution companies
and other market participants. Rates for these existing services are established pursuant to rate proceedings conducted before
municipalities that have original jurisdiction and the PUCT.

Bond Companies

Houston Electric has special purpose subsidiaries consisting of the Bond Companies, which it consolidates. The consolidated
special purpose subsidiaries are wholly-owned, bankruptcy remote entities that were formed solely for the purpose of purchasing
and owning transition or system restoration property through the issuance of Securitization Bonds, and conducting activities
incidental thereto. The Securitization Bonds are repaid through charges imposed on customers in Houston Electric’s service
territory. For further discussion of the Securitization Bonds and the outstanding balances as of December 31, 2017 and 2016, see
Note 13 to our consolidated financial statements.

Customers

Houston Electric serves nearly all of the Houston/Galveston metropolitan area. At December 31, 2017, Houston Electric’s
customers consisted of approximately 68 REPs, which sell electricity to more than 2.4 million metered customers in Houston
Electric’s certificated service area, and municipalities, electric cooperatives and other distribution companies located outside
Houston Electric’s certificated service area. Each REP is licensed by, and must meet minimum creditworthiness criteria established

by, the PUCT. Houston Electric does not have long-term contracts with any of its customers. It operates using a continuous billing
cycle, with meter readings being conducted and invoices being distributed to REPs each business day. For information regarding
Houston Electric’s major customers, see Note 18 to our consolidated financial statements.

Utility Technology

Houston Electric’s Smart Grid is comprised of the AMS, IG, ADMS and private telecommunications network. Since 2009,
Houston Electric has deployed fully operational advanced meters to virtually all of its 2.4 million metered customers, automated
31 substations, installed 872 IG Switching Devices on more than 200 circuits, built a wireless radio frequency mesh
telecommunications network across Houston Electric’s 5,000-square mile footprint, and enabled real-time grid monitoring and
control, which leverages information from smart meters and field sensors to manage system events through the ADMS. We believe
that the Smart Grid is already improving electric distribution service reliability and restoration, enhancing the consumer experience,
supporting the growth of renewable energy and helping the environment by reducing carbon emissions.

Competition

There are no other electric transmission and distribution utilities in Houston Electric’s service area. For another provider of
transmission and distribution services to provide such services in Houston Electric’s territory, it would be required to obtain a
certificate of convenience and necessity from the PUCT and, depending on the location of the facilities, may also be required to
obtain franchises from one or more municipalities. We know of no other party intending to enter this business in Houston Electric’s
service area at this time. Distributed generation (i.e., power generation located at or near the point of consumption) could result
in a reduction of demand for Houston Electric’s distribution services but has not been a significant factor to date.

Seasonality

A significant portion of Houston Electric’s revenues is derived from rates that it collects from each REP based on the amount
of electricity it delivers on behalf of that REP. Thus, Houston Electric’s revenues and results of operations are subject to seasonality,
weather conditions and other changes in electricity usage, with revenues generally being higher during the warmer months.

Properties

All of Houston Electric’s properties are located in Texas. Its properties consist primarily of high-voltage electric transmission
lines and poles, distribution lines, substations, service centers, service wires, telecommunications network and meters. Most of
Houston Electric’s transmission and distribution lines have been constructed over lands of others pursuant to easements or along
public highways and streets under franchise agreements and as permitted by law.

All real and tangible properties of Houston Electric, subject to certain exclusions, are currently subject to:

•

the lien of a Mortgage and Deed of Trust (the Mortgage) dated November 1, 1944, as supplemented; and

the lien of a General Mortgage (the General Mortgage) dated October 10, 2002, as supplemented, which is junior to the
lien of the Mortgage.

For information related to debt outstanding under the Mortgage and General Mortgage, see Note 13 to our consolidated

financial statements.

Electric Lines - Transmission. As of December 31, 2017, Houston Electric owned and operated the following electric

transmission lines:

Operating Voltage
69 kV .........
138 kV .........
345 kV .........

Circuit Miles

Overhead Lines

Underground Lines

271

2,198

1,219

3,688

—

Electric Lines - Distribution. As of December 31, 2017, Houston Electric owned 28,883 pole miles of overhead distribution

lines and 24,662 circuit miles of underground distribution lines.

Substations. As of December 31, 2017, Houston Electric owned 235 major substation sites having a total installed rated

transformer capacity of 64,924 megavolt amperes.

Service Centers. As of December 31, 2017, Houston Electric operated 14 regional service centers located on a total of 292 acres
of land. These service centers consist of office buildings, warehouses and repair facilities that are used in the business of transmitting
and distributing electricity.

Franchises

Houston Electric holds non-exclusive franchises from certain incorporated municipalities in its service territory. In exchange
for the payment of fees, these franchises give Houston Electric the right to use the streets and public rights-of-way of these
municipalities to construct, operate and maintain its transmission and distribution system and to use that system to conduct its
electric delivery business and for other purposes that the franchises permit. The terms of the franchises, with various expiration
dates, typically range from 20 to 40 years.

Natural Gas Distribution

CERC Corp.’s NGD engages in regulated intrastate natural gas sales to, and natural gas transportation and storage for,
approximately 3.5 million residential, commercial, industrial and transportation customers in Arkansas, Louisiana, Minnesota,
Mississippi, Oklahoma and Texas. The largest metropolitan areas served in each state by NGD are Houston, Texas; Minneapolis,
Minnesota; Little Rock, Arkansas; Shreveport, Louisiana; Biloxi, Mississippi; and Lawton, Oklahoma. NGD also provides
unregulated services in Minnesota consisting of residential appliance repair and maintenance services along with HVAC equipment
sales. NGD’s service territory is depicted below:

In 2017, approximately 37% of NGD’s total throughput was to residential customers and approximately 63% was to commercial
and industrial and transportation customers. The table below reflects the number of NGD customers by state as of December 31,
2017:

Residential
378,429
Arkansas ...............................................................................................
230,084
Louisiana...............................................................................................
788,832
Minnesota .............................................................................................
113,752
Mississippi ............................................................................................
Oklahoma..............................................................................................
89,074
Texas..................................................................................................... 1,612,969
Total NGD ............................................................................................ 3,213,140

Commercial/
Industrial

47,965
16,711
70,178
12,567
10,758
98,472
256,651

Total
Customers
426,394
246,795
859,010
126,319
99,832
1,711,441
3,469,791

Seasonality

The demand for intrastate natural gas sales to residential customers and natural gas sales and transportation for commercial
and industrial customers is seasonal. In 2017, approximately 66% of NGD’s total throughput occurred in the first and fourth
quarters. These patterns reflect the higher demand for natural gas for heating purposes during the colder months.

Supply and Transportation. In 2017, NGD purchased virtually all of its natural gas supply pursuant to contracts with remaining

terms varying from a few months to four years. Major suppliers in 2017 included the following:

Supplier

Tenaska Marketing Ventures ......................................................
Macquarie Energy, LLC.............................................................
BP Energy Company/BP Canada Energy Marketing .................
Kinder Morgan Tejas Pipeline/Kinder Morgan Texas Pipeline..
CES.............................................................................................
Mieco, Inc...................................................................................
Spire Marketing, Inc...................................................................
United Energy Trading, LLC......................................................
Koch Energy Services, LLC.......................................................
Cargill.........................................................................................

Percent of
Supply
Volumes
18.0%

12.5%

12.1%

7.4%

5.4%

5.0%

4.9%

4.7%
4.0%

2.8%

Numerous other suppliers provided the remaining 23.2% of NGD’s natural gas supply requirements. NGD transports its
natural gas supplies through various intrastate and interstate pipelines under contracts with remaining terms, including extensions,
varying from one to fifteen years. NGD anticipates that these gas supply and transportation contracts will be renewed or replaced
prior to their expiration.

NGD actively engages in commodity price stabilization pursuant to annual gas supply plans presented to and/or filed with
each of its state regulatory authorities. These price stabilization activities include use of storage gas and contractually establishing
structured prices (e.g., fixed price, costless collars and caps) with our physical gas suppliers. Its gas supply plans generally call
for 50–75% of winter supplies to be stabilized in some fashion.

The regulations of the states in which NGD operates allow it to pass through changes in the cost of natural gas, including
savings and costs of financial derivatives associated with the index-priced physical supply, to its customers under purchased gas
adjustment provisions in its tariffs. Depending upon the jurisdiction, the purchased gas adjustment factors are updated periodically,
ranging from monthly to semi-annually. The changes in the cost of gas billed to customers are subject to review by the applicable
regulatory bodies.

NGD uses various third-party storage services or owned natural gas storage facilities to meet peak-day requirements and to
manage the daily changes in demand due to changes in weather. NGD may also supplement contracted supplies and storage from
time to time with stored LNG and propane-air plant production.

NGD owns and operates an underground natural gas storage facility with a capacity of 7.0 Bcf. It has a working capacity of
2.0 Bcf available for use during the heating season and a maximum daily withdrawal rate of 50 MMcf. It also owns eight propane-
air plants with a total production rate of 180,000 Dth per day and on-site storage facilities for 12 million gallons of propane (1.0 Bcf
natural gas equivalent). It owns a LNG plant facility with a 12 million-gallon LNG storage tank (1.0 Bcf natural gas equivalent)
and a production rate of 72,000 Dth per day.

On an ongoing basis, NGD enters into contracts to provide sufficient supplies and pipeline capacity to meet its customer
requirements. However, it is possible for limited service disruptions to occur from time to time due to weather conditions,
transportation constraints and other events. As a result of these factors, supplies of natural gas may become unavailable from time
to time, or prices may increase rapidly in response to temporary supply constraints or other factors.

agreements, NGD agrees to release transportation and storage capacity to other parties to manage natural gas storage, supply and
delivery arrangements for NGD and to use the released capacity for other purposes when it is not needed for NGD. NGD is
compensated by the asset manager through payments made over the life of the agreements based in part on the results of the asset
optimization. NGD has an obligation to purchase its winter storage requirements that have been released to the asset manager
under these AMAs. NGD has received approval from the state regulatory commissions in Arkansas, Louisiana, Mississippi and
Oklahoma to retain a share of the AMA proceeds.

Assets

As of December 31, 2017, NGD owned approximately 75,000 linear miles of natural gas distribution mains, varying in size
from one-half inch to 24 inches in diameter. Generally, in each of the cities, towns and rural areas served by NGD, it owns the
underground gas mains and service lines, metering and regulating equipment located on customers’ premises and the district
regulating equipment necessary for pressure maintenance. With a few exceptions, the measuring stations at which NGD receives
gas are owned, operated and maintained by others, and its distribution facilities begin at the outlet of the measuring equipment.
These facilities, including odorizing equipment, are usually located on land owned by suppliers.

Competition

NGD competes primarily with alternate energy sources such as electricity and other fuel sources. In some areas, intrastate
pipelines, other gas distributors and marketers also compete directly for gas sales to end users. In addition, as a result of federal
regulations affecting interstate pipelines, natural gas marketers operating on these pipelines may be able to bypass NGD’s facilities
and market and sell and/or transport natural gas directly to commercial and industrial customers.

Energy Services

CERC offers competitive variable and fixed-priced physical natural gas supplies primarily to commercial and industrial
customers and electric and natural gas utilities through CES and its subsidiary, CEIP. Energy Services’ service territory is depicted
below:

In 2017, CES marketed approximately 1,200 Bcf of natural gas, related energy services and transportation to approximately
31,000 customers (including approximately 21 Bcf to affiliates) in 33 states. CES customers vary in size from small commercial
customers to large utility companies. Not included in the 2017 customer count are approximately 72,000 natural gas customers
that are served under residential and small commercial choice programs invoiced by their host utility. These customers are not
included in customer count so as not to distort the significant margin impact from the remaining customer base.

In January 2017, CES completed the acquisition of AEM, providing CES with a portfolio of industrial and large commercial
customers complementary to CES’s existing customer base and strategically aligned storage and transportation assets. For further
information related to this acquisition, see Note 4 to our consolidated financial statements.

CES offers a variety of natural gas management services to gas utilities, large industrial customers, electric generators, smaller
commercial and industrial customers, municipalities, educational institutions, government facilities and hospitals. These services
include load forecasting, supply acquisition, daily swing volume management, invoice consolidation, storage asset management,
firm and interruptible transportation administration and forward price management. CES also offers a portfolio of physical delivery
services designed to meet customers’ supply and price risk management needs. These customers are served directly, through
interconnects with various interstate and intrastate pipeline companies, and portably, through our mobile energy solutions business.

In addition to offering natural gas management services, CES procures and optimizes transportation and storage assets. CES
maintains a portfolio of natural gas supply contracts and firm transportation and storage agreements to meet the natural gas
requirements of its customers. CES aggregates supply from various producing regions and offers contracts to buy natural gas with
terms ranging from one month to over five years. In addition, CES actively participates in the spot natural gas markets in an effort
to balance daily and monthly purchases and sales obligations. Natural gas supply and transportation capabilities are leveraged
through contracts for ancillary services including physical storage and other balancing arrangements.

As described above, CES offers its customers a variety of load following services. In providing these services, CES uses its
customers’ purchase commitments to forecast and arrange its own supply purchases, storage and transportation services to serve
customers’ natural gas requirements. As a result of the variance between this forecast activity and the actual monthly activity, CES
will either have too much supply or too little supply relative to its customers’ purchase commitments. These supply imbalances
arise each month as customers’ natural gas requirements are scheduled and corresponding natural gas supplies are nominated by
CES for delivery to those customers. CES’s processes and risk control environment are designed to measure and value imbalances
on a real-time basis to ensure that CES’s exposure to commodity price risk is kept to a minimum. The value assigned to these
imbalances is calculated daily and is known as the aggregate VaR.

Our risk control policy, which is overseen by our Risk Oversight Committee, defines authorized and prohibited trading
instruments and trading limits. CES is a physical marketer of natural gas and uses a variety of tools, including pipeline and storage
capacity, financial instruments and physical commodity purchase contracts, to support its sales. CES optimizes its use of these
various tools to minimize its supply costs and does not engage in speculative commodity trading. The VaR limit within which
CES currently operates, a $4 million maximum set by the Board of Directors, is consistent with CES’s operational objective of
matching its aggregate sales obligations (including the swing associated with load following services) with its supply portfolio in
a manner that minimizes its total cost of supply. In 2017, CES’s VaR averaged $0.7 million with a high of $1.8 million.

Assets

As of December 31, 2017, CEIP owned and operated over 200 miles of intrastate pipeline in Louisiana and Texas. In addition,
CES leases transportation capacity on various interstate and intrastate pipelines and storage to service its shippers and end users.

Competition

CES competes with regional and national wholesale and retail gas marketers, including the marketing divisions of natural gas

producers and utilities. In addition, CES competes with intrastate pipelines for customers and services in its market areas.

Midstream Investments

Our Midstream Investments business segment consists of CERC Corp.’s equity method investment in Enable. Enable is a

publicly traded MLP, jointly controlled by CERC Corp. and OGE.

Enable. Enable was formed to own, operate and develop midstream energy infrastructure assets strategically located to serve
its customers. Enable’s assets and operations are organized into two reportable segments: (i) gathering and processing and
(ii) transportation and storage. Enable’s gathering and processing segment primarily provides natural gas and crude oil gathering
and natural gas processing services to its producer customers. Enable’s transportation and storage segment provides interstate and
intrastate natural gas pipeline transportation and storage services primarily to its producer, power plant, local distribution company
and industrial end-user customers.

Enable’s Gathering and Processing segment. Enable owns and operates substantial natural gas and crude oil gathering and
natural gas processing assets in five states. Enable’s gathering and processing operations consist primarily of natural gas gathering

and processing assets serving the Anadarko, Arkoma and Ark-La-Tex Basins and crude oil gathering assets serving the Williston
Basin. Enable provides a variety of services to the active producers in its operating areas, including gathering, compressing,
treating, and processing natural gas, fractionating NGLs, and gathering crude oil and produced water. Enable serves shale and
other unconventional plays in the basins in which it operates.

Enable’s gathering and processing systems compete with gatherers and processors of all types and sizes, including those
affiliated with various producers, other major pipeline companies and various independent midstream entities. In the process of
selling NGLs, Enable competes against other natural gas processors extracting and selling NGLs. Enable’s primary competitors
are other midstream companies who are active in the regions where it operates. Competition to gather crude oil and produced
water is primarily a function of rates, terms of service, system reliability and construction cycle time. The rates and terms of service
of Enable’s crude oil gathering, but not its produced water gathering, are FERC regulated. Enable’s Williston Basin gathering
systems compete with other gatherers, including those affiliated with producers and other midstream companies.

Enable’s Transportation and Storage segment. Enable owns and operates interstate and intrastate transportation and storage
systems across nine states. Enable’s transportation and storage systems consist primarily of its interstate systems, its intrastate
system and its investment in SESH. Enable’s transportation and storage assets transport natural gas from areas of production and
interconnected pipelines to power plants, local distribution companies and industrial end users as well as interconnected pipelines
for delivery to additional markets. Enable’s transportation and storage assets also provide facilities where natural gas can be stored
by customers.

Enable’s interstate pipelines compete with a variety of other interstate and intrastate pipelines across its operating areas.
Enable’s intrastate pipeline competes with a variety of interstate and intrastate pipelines in providing transportation and storage
services, including several pipelines with which it interconnects. Enable’s management views the principal elements of competition
among pipelines as rates and terms, flexibility and reliability of service.

For information related to CERC Corp.’s equity method investment in Enable, see Notes 2(c), 10 and 19 to our consolidated

financial statements.

Other Operations

Our Other Operations business segment includes office buildings and other real estate used in our business operations and

other corporate operations that support all of our business operations.

We are subject to regulation by various federal, state and local governmental agencies, including the regulations described

REGULATION

below.

Federal Energy Regulatory Commission

The FERC has jurisdiction under the NGA and the NGPA, as amended, to regulate the transportation of natural gas in interstate
commerce and natural gas sales for resale in interstate commerce that are not first sales. The FERC regulates, among other things,
the construction of pipeline and related facilities used in the transportation and storage of natural gas in interstate commerce,
including the extension, expansion or abandonment of these facilities. The FERC has authority to prohibit market manipulation
in connection with FERC-regulated transactions and to impose significant civil and criminal penalties for statutory violations and
violations of the FERC’s rules or orders. Our Energy Services business segment markets natural gas in interstate commerce pursuant
to blanket authority granted by the FERC.

Houston Electric is not a “public utility” under the Federal Power Act and, therefore, is not generally regulated by the FERC,
although certain of its transactions are subject to limited FERC jurisdiction. The FERC has certain responsibilities with respect
to ensuring the reliability of electric transmission service, including transmission facilities owned by Houston Electric and other
utilities within ERCOT. The FERC has designated the NERC as the ERO to promulgate standards, under FERC oversight, for all
owners, operators and users of the bulk power system (Electric Entities). The ERO and the FERC have authority to (a) impose
fines and other sanctions on Electric Entities that fail to comply with approved standards and (b) audit compliance with approved
standards. The FERC has approved the delegation by the NERC of authority for reliability in ERCOT to the Texas RE. Houston
Electric does not anticipate that the reliability standards proposed by the NERC and approved by the FERC will have a material
adverse impact on its operations. To the extent that Houston Electric is required to make additional expenditures to comply with
these standards, it is anticipated that Houston Electric will seek to recover those costs through the transmission charges that are
imposed on all distribution service providers within ERCOT for electric transmission provided.

As a public utility holding company, under the Public Utility Holding Company Act of 2005, we and our consolidated
subsidiaries are subject to reporting and accounting requirements and are required to maintain certain books and records and make
them available for review by the FERC and state regulatory authorities in certain circumstances.

State and Local Regulation – Electric Transmission & Distribution

Houston Electric conducts its operations pursuant to a certificate of convenience and necessity issued by the PUCT that covers
its present service area and facilities. The PUCT and certain municipalities have the authority to set the rates and terms of service
provided by Houston Electric under cost-of-service rate regulation. Houston Electric holds non-exclusive franchises from certain
incorporated municipalities in its service territory. In exchange for payment of fees, these franchises give Houston Electric the
right to use the streets and public rights-of-way of these municipalities to construct, operate and maintain its transmission and
distribution system and to use that system to conduct its electric delivery business and for other purposes that the franchises permit.
The terms of the franchises, with various expiration dates, typically range from 20 to 40 years.

Houston Electric’s distribution rates charged to REPs for residential customers are primarily based on amounts of energy
delivered, whereas distribution rates for a majority of commercial and industrial customers are primarily based on peak demand.
All REPs in Houston Electric’s service area pay the same rates and other charges for transmission and distribution services. This
regulated delivery charge includes the transmission and distribution rate (which includes municipal franchise fees), a distribution
recovery mechanism for recovery of incremental distribution-invested capital above that which is already reflected in the base
distribution rate, a nuclear decommissioning charge associated with decommissioning the South Texas nuclear generating facility,
an EECR charge, and charges associated with securitization of regulatory assets, stranded costs and restoration costs relating to
Hurricane Ike. Transmission rates charged to distribution companies are based on amounts of energy transmitted under “postage
stamp” rates that do not vary with the distance the energy is being transmitted. All distribution companies in ERCOT pay Houston
Electric the same rates and other charges for transmission services.

For a discussion of certain of Houston Electric’s ongoing regulatory proceedings, see “Management’s Discussion and Analysis
of Financial Condition and Results of Operations — Liquidity and Capital Resources — Regulatory Matters” in Item 7 of Part II
of this report, which discussion is incorporated herein by reference.

State and Local Regulation – Natural Gas Distribution

In almost all communities in which NGD provides natural gas distribution services, it operates under franchises, certificates
or licenses obtained from state and local authorities. The original terms of the franchises, with various expiration dates, typically
range from 10 to 30 years, although franchises in Arkansas are perpetual. NGD expects to be able to renew expiring franchises.
In most cases, franchises to provide natural gas utility services are not exclusive.

Substantially all of NGD is subject to cost-of-service rate regulation by the relevant state public utility commissions and, in
Texas, by the Railroad Commission and those municipalities served by NGD that have retained original jurisdiction. In certain
of its jurisdictions, NGD has in effect annual rate adjustment mechanisms that provide for changes in rates dependent upon certain
changes in invested capital, earned returns on equity or actual margins realized.

For a discussion of certain of NGD’s ongoing regulatory proceedings, see “Management’s Discussion and Analysis of Financial
Condition and Results of Operations — Liquidity and Capital Resources — Regulatory Matters” in Item 7 of Part II of this report,
which discussion is incorporated herein by reference.

Department of Transportation

In December 2006, Congress enacted the 2006 Act, which reauthorized the programs adopted under the 2002 Act. These
programs included several requirements related to ensuring pipeline safety, and a requirement to assess the integrity of pipeline
transmission facilities in areas of high population concentration.

Pursuant to the 2006 Act, PHMSA, an agency of the DOT, issued regulations, effective February 12, 2010, requiring operators
of gas distribution pipelines to develop and implement integrity management programs similar to those required for gas transmission
pipelines, but tailored to reflect the differences in distribution pipelines. Operators of natural gas distribution systems were required
to write and implement their integrity management programs by August 2, 2011. Our natural gas distribution systems met this
deadline.

Pursuant to the 2002 Act and the 2006 Act, PHMSA has adopted a number of rules concerning, among other things,
distinguishing between gathering lines and transmission facilities, requiring certain design and construction features in new and
replaced lines to reduce corrosion and requiring pipeline operators to amend existing written operations and maintenance procedures
and operator qualification programs. PHMSA also updated its reporting requirements for natural gas pipelines effective January
1, 2011.

In December 2011, Congress passed the 2011 Act. This act increased the maximum civil penalties for pipeline safety
administrative enforcement actions; required the DOT to study and report on the expansion of integrity management requirements
and the sufficiency of existing gathering line regulations to ensure safety; required pipeline operators to verify their records on
maximum allowable operating pressure; and imposed new emergency response and incident notification requirements. In 2016,
the 2016 Act reauthorized PHMSA’s pipeline safety programs through 2019 and provided limited new authority, including the
ability to issue emergency orders, to set inspection requirements for certain underwater pipelines and to promulgate minimum
safety standards for natural gas storage facilities, as well as to provide increased transparency into the status of as-yet-incomplete
PHMSA actions required by the 2011 Act.

We anticipate that compliance with PHMSA’s regulations, performance of the remediation activities by CERC’s natural gas
distribution companies and intrastate pipelines and verification of records on maximum allowable operating pressure will continue
to require increases in both capital expenditures and operating costs. The level of expenditures will depend upon several factors,
including age, location and operating pressures of the facilities. In particular, the cost of compliance with the DOT’s integrity
management rules will depend on integrity testing and the repairs found to be necessary by such testing. Changes to the amount
of pipe subject to integrity management, whether by expansion of the definition of the type of areas subject to integrity management
procedures or of the applicability of such procedures outside of those defined areas, may also affect the costs we incur.
Implementation of the 2011 and 2016 Acts by PHMSA may result in other regulations or the reinterpretation of existing regulations
that could impact our compliance costs. In addition, we may be subject to the DOT’s enforcement actions and penalties if we fail
to comply with pipeline regulations.

Midstream Investments – Rate and Other Regulation

Federal, state, and local regulation may affect certain aspects of Enable’s business.

Interstate Natural Gas Pipeline Regulation

Enable’s interstate pipeline systems—EGT, MRT and SESH—are subject to regulation by the FERC and are considered
“natural gas companies” under the NGA. Under the NGA, the rates for service on Enable’s interstate facilities must be just and
reasonable and not unduly discriminatory. Rate and tariff changes for these facilities can only be implemented upon approval by
the FERC. Enable’s interstate pipelines business operations may be affected by changes in the demand for natural gas, the available
supply and relative price of natural gas in the Mid-continent and Gulf Coast natural gas supply regions and general economic
conditions.

Market Behavior Rules; Posting and Reporting Requirements

The EPAct of 2005 amended the NGA to add an anti-manipulation provision that makes it unlawful for any entity to engage
in prohibited behavior as prescribed in FERC rules, which were subsequently issued in FERC Order No. 670. The EPAct of 2005
also amends the NGA and the NGPA to give the FERC authority to impose civil penalties for violations of these statutes and
FERC’s regulations, rules, and orders, of up to $1.2 million per day per violation, subject to periodic adjustment to account for
inflation. Should Enable fail to comply with all applicable FERC-administered statutes, rules, regulations and orders, it could be
subject to substantial penalties and fines. In addition, the CFTC is directed under the CEA to prevent price manipulations for the
commodity and futures markets, including the energy futures markets. Pursuant to the Dodd-Frank Act 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 $1.1 million or triple the monetary
gain to the violator for violations of the anti-market manipulation sections of the CEA. These maximum penalty levels are also
subject to periodic adjustment to account for inflation.

Intrastate Natural Gas Pipeline and Storage Regulation

Intrastate natural gas transportation is largely regulated by the state in which the transportation takes place. However, an
intrastate natural gas pipeline system may transport natural gas in interstate commerce provided that the rates, terms, and conditions
of such transportation service comply with Section 311 of the NGPA and Part 284 of the FERC’s regulations. Rates for service
pursuant to Section 311 of the NGPA are generally subject to review and approval by the FERC at least once every five years.
11

Failure to observe the service limitations applicable to transportation services provided under Section 311, failure to comply with
the rates approved by the FERC for Section 311 service, or failure to comply with the terms and conditions of service established
in the pipeline’s FERC-approved Statement of Operating Conditions could result in the assertion of federal NGA jurisdiction by
the FERC and/or the imposition of administrative, civil and criminal penalties, as described under “—Interstate Natural Gas
Pipeline Regulation” above.

Natural Gas Gathering and Processing Regulation

Section 1(b) of the NGA exempts natural gas gathering facilities from the jurisdiction of the FERC. Although the FERC has
not made formal determinations with respect to all of the facilities Enable considers to be gathering facilities, Enable believes that
its natural gas pipelines meet the traditional tests that the FERC has used to determine that a pipeline is a gathering pipeline and
is therefore not subject to FERC jurisdiction. The distinction, however, has been the subject of substantial litigation, and the FERC
determines whether facilities are gathering facilities on a case-by-case basis, so the classification and regulation of Enable’s
gathering facilities is subject to change based on future determinations.

States may regulate gathering pipelines. State regulation generally includes various safety, environmental and, in some
circumstances, anti-discrimination requirements, and in some instances complaint-based rate regulation. Enable’s gathering
operations may be subject to ratable take and common purchaser statutes in the states in which they operate.

Enable’s gathering operations could be adversely affected should they be subject in the future to the application of state or
federal regulation of rates and services. Enable’s gathering operations could also be subject to additional safety and operational
regulations relating to the design, construction, testing, operation, replacement and maintenance of gathering facilities. We cannot
predict what effect, if any, such changes might have on Enable’s operations, but the industry could be required to incur additional
capital expenditures and increased costs depending on future legislative and regulatory changes.

Crude Oil Gathering Regulation

Enable provides interstate transportation on its crude oil gathering system in North Dakota pursuant to a public tariff in
accordance with FERC regulatory requirements. Crude oil gathering pipelines that provide interstate transportation service may
be regulated as a common carrier by the FERC under the ICA, the Energy Policy Act of 1992, and the rules and regulations
promulgated under those laws. The ICA and FERC regulations require that rates for interstate service pipelines that transport crude
oil and refined petroleum products (collectively referred to as “petroleum pipelines”) and certain other liquids, be just and reasonable
and non-discriminatory or not conferring any undue preference upon any shipper. FERC regulations also require interstate common
carrier petroleum pipelines to file with the FERC and publicly post tariffs stating their interstate transportation rates and terms
and conditions of service.

Safety and Health Regulation

Certain of Enable’s facilities are subject to pipeline safety regulations. PHMSA regulates safety requirements in the design,
construction, operation and maintenance of jurisdictional natural gas and hazardous liquid pipeline facilities. All natural gas
transmission facilities, such as Enable’s interstate natural gas pipelines, are subject to PHMSA’s regulations, but natural gas
gathering pipelines are subject only to the extent they are classified as regulated gathering pipelines. In addition, several NGL
pipeline facilities and crude oil pipeline facilities are regulated as hazardous liquids pipelines.

Pursuant to various federal statutes, including the NGPSA, the DOT, through PHMSA, regulates pipeline safety and integrity.
NGL and crude oil pipelines are subject to regulation by PHMSA under the Hazardous Liquid Pipeline Safety Act which requires
PHMSA to develop, prescribe, and enforce minimum federal safety standards for the transportation of hazardous liquids by pipeline,
and comparable state statutes with respect to design, installation, testing, construction, operation, replacement and management
of pipeline facilities. Should Enable fail to comply with DOT or comparable state regulations, it could be subject to penalties and
fines. If future DOT pipeline regulations were to require that Enable expand its integrity management program to currently
unregulated pipelines, costs associated with compliance may have a material effect on its operations.

ENVIRONMENTAL MATTERS

Our operations and the operations of Enable are subject to stringent and complex laws and regulations pertaining to the
environment. As an owner or operator of natural gas pipelines, distribution systems and storage, electric transmission and
distribution systems, and the facilities that support these systems, we must comply with these laws and regulations at the federal,
state and local levels. These laws and regulations can restrict or impact our business activities in many ways, including, but not
limited to:

•

restricting the way we can handle or dispose of wastes;

limiting or prohibiting construction activities in sensitive areas such as wetlands, coastal regions or areas inhabited by
endangered species;

requiring remedial action to mitigate environmental conditions caused by our operations or attributable to former
operations;

enjoining the operations of facilities with permits issued pursuant to such environmental laws and regulations; and

impacting the demand for our services by directly or indirectly affecting the use or price of natural gas.

To comply with these requirements, we may need to spend substantial amounts and devote other resources from time to time

to, among other activities:

•

construct or acquire new facilities and equipment;

acquire permits for facility operations;

• modify, upgrade or replace existing and proposed equipment; and

•

clean or decommission waste management areas, fuel storage facilities and other locations.

Failure to comply with these laws and regulations may trigger a variety of administrative, civil and criminal enforcement
measures, including the assessment of monetary penalties, the imposition of remedial actions and the issuance of orders enjoining
future operations. Certain environmental statutes impose strict, joint and several liability for costs required to assess, clean up and
restore sites where hazardous substances have been stored, disposed or released. Moreover, it is not uncommon for neighboring
landowners and other third parties to file claims for personal injury and/or property damage allegedly caused by the release of
hazardous substances or other waste products into the environment.

The recent trend in environmental regulation has been to place more restrictions and limitations on activities that may impact
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 different from the amounts we currently anticipate. We try to anticipate future
regulatory requirements that might be imposed and plan accordingly to maintain compliance with changing environmental laws
and regulations and to ensure the costs of such compliance are reasonable.

Based on current regulatory requirements and interpretations, we do not believe that compliance with federal, state or local
environmental laws and regulations will have a material adverse effect on our business, financial position, results of operations
or cash flows. In addition, we believe that our current environmental remediation activities will not materially interrupt or diminish
our operational ability. We cannot assure you that future events, such as changes in existing laws, the promulgation of new laws,
or the development or discovery of new facts or conditions will not cause us to incur significant costs. The following is a discussion
of material current environmental and safety issues, laws and regulations that relate to our operations. We believe that we are in
substantial compliance with these environmental laws and regulations.

Global Climate Change

There is increasing attention being paid in the United States and worldwide to the issue of climate change. As a result, from
time to time, regulatory agencies have considered the modification of existing laws or regulations or the adoption of new laws or
regulations addressing the emissions of GHG on the state, federal, or international level. Some of the proposals would require
industrial sources to meet stringent new standards that would require substantial reductions in GHG emissions. CERC’s revenues,
operating costs and capital requirements could be adversely affected as a result of any regulatory action that would require
installation of new control technologies or a modification of its operations or would have the effect of reducing the consumption
of natural gas. Our electric transmission and distribution business, in contrast to some electric utilities, does not generate electricity
and thus is not directly exposed to the risk of high capital costs and regulatory uncertainties that face electric utilities that burn
fossil fuels to generate electricity. Nevertheless, Houston Electric’s revenues could be adversely affected to the extent any resulting
regulatory action has the effect of reducing consumption of electricity by ultimate consumers within its service territory. Likewise,
incentives to conserve energy or to use energy sources other than natural gas could result in a decrease in demand for our
services. Conversely, regulatory actions that effectively promote the consumption of natural gas because of its lower emissions
13

characteristics would be expected to beneficially affect CERC and its natural gas-related businesses. At this point in time, however,
it would be speculative to try to quantify the magnitude of the impacts from possible new regulatory actions related to GHG
emissions, either positive or negative, on our businesses.

To the extent climate changes may occur and such climate changes result in warmer temperatures in our service territories,
financial results from our and Enable’s businesses could be adversely impacted. For example, CERC’s NGD could be adversely
affected through lower natural gas sales and Enable’s natural gas gathering, processing and transportation and crude oil gathering
businesses could experience lower revenues. On the other hand, warmer temperatures in our electric service territory may increase
our revenues from transmission and distribution through increased demand for electricity for cooling. Another possible result of
climate change is more frequent and more severe weather events, such as hurricanes or tornadoes. Since many of our facilities
are located along or near the Gulf Coast, increased or more severe hurricanes or tornadoes could increase our costs to repair
damaged facilities and restore service to our customers. When we cannot deliver electricity or natural gas to customers, or our
customers cannot receive our services, our financial results can be impacted by lost revenues, and we generally must seek approval
from regulators to recover restoration costs. To the extent we are unable to recover those costs, or if higher rates resulting from
our recovery of such costs result in reduced demand for our services, our future financial results may be adversely impacted.

Air Emissions

Our operations are subject to the federal Clean Air Act and comparable state laws and regulations. These laws and regulations
regulate emissions of air pollutants from various industrial sources, including processing plants and compressor stations, and also
impose various monitoring and reporting requirements. Such laws and regulations may require 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.
We may be required to obtain and strictly comply with air permits containing various emissions and operational limitations, or
utilize specific emission control technologies to limit emissions. Failure to comply with these requirements could result in monetary
penalties, injunctions, conditions or restrictions on operations, and potentially criminal enforcement actions. We may be required
to incur certain capital expenditures in the future for air pollution control equipment in connection with obtaining and maintaining
operating permits and approvals for air emissions.

The EPA has established new air emission control requirements for natural gas and NGLs production, processing and
transportation activities. Under the NESHAPS, the EPA established the RICE MACT rule. Compressors and back up electrical
generators used by our Natural Gas Distribution business segment, and back up electrical generators used by our Electric
Transmission & Distribution business segment, are substantially compliant with these laws and regulations.

Water Discharges

Our operations are subject to the Federal Water Pollution Control Act of 1972, as amended, also known as the Clean Water
Act, and analogous state laws and regulations. These laws and regulations impose detailed requirements and strict controls regarding
the discharge of pollutants into waters of the United States. The unpermitted discharge of pollutants, including discharges resulting
from a spill or leak incident, is prohibited. The Clean Water Act and regulations implemented thereunder also prohibit discharges
of dredged and fill material into wetlands and other waters of the United States unless authorized by an appropriately issued permit.
Any unpermitted release of petroleum or other pollutants from our pipelines or facilities could result in fines or penalties as well
as significant remedial obligations.

Under the Obama administration, the EPA promulgated a set of rules that included a comprehensive regulatory overhaul of
defining “waters of the United States” for the purposes of determining federal jurisdiction. These regulations have the potential
to affect many aspects of our water-related regulatory compliance obligations. However, the new rules were challenged in court,
and the U.S. Supreme Court has recently held that any challenge to the rules must be brought in the U.S. district courts rather than
directly before the U.S. courts of appeals. As a result, the new definition of the “waters of the United States” is likely to be disputed
in litigation for years to come. Additionally, the Trump administration has signaled its intent to repeal and replace the Obama-era
rules. Thus, the fate and content of the new regulations is currently uncertain, and it is not clear when, and even if, they will be
enacted. The potential impact of any new “waters of the United States” regulations on our business, liabilities, compliance
obligations or profits and revenues is uncertain at this time.

Hazardous Waste

Our operations generate wastes, including some hazardous wastes, that are subject to the federal RCRA, and comparable state
laws, which impose detailed requirements for the handling, storage, treatment, transport and disposal of hazardous and solid waste.
RCRA currently exempts many natural gas gathering and field processing wastes from classification as hazardous waste.
Specifically, RCRA excludes from the definition of hazardous waste waters produced and other wastes associated with the
14

exploration, development or production of crude oil and natural gas. However, these oil and gas exploration and production wastes
are still regulated under state law and the less stringent non-hazardous waste requirements of RCRA. Moreover, ordinary industrial
wastes such as paint wastes, waste solvents, laboratory wastes and waste compressor oils may be regulated as hazardous waste.
The transportation of natural gas in pipelines may also generate some hazardous wastes that would be subject to RCRA or
comparable state law requirements.

Liability for Remediation

CERCLA, also known as “Superfund,” and comparable state laws impose liability, without regard to fault or the legality of
the original conduct, on certain classes of persons responsible for the release of “hazardous substances” into the environment.
Classes of PRPs include the current and past owners or operators of sites where a hazardous substance was released and companies
that disposed or arranged for the disposal of hazardous substances at offsite locations such as landfills. Although petroleum, as
well as natural gas, is expressly excluded from CERCLA’s definition of a “hazardous substance,” in the course of our ordinary
operations we do, from time to time, generate wastes that may fall within the definition of a “hazardous substance.” CERCLA
authorizes the EPA and, in some cases, third parties to take action in response to threats to the public health or the environment
and to recover the costs they incur from the responsible classes of persons. Under CERCLA, we could potentially be subject to
joint and several liability for the costs of cleaning up and restoring sites where hazardous substances have been released, for
damages to natural resources, and for associated response and assessment costs, including for the costs of certain health studies.

Liability for Preexisting Conditions

For information about preexisting environmental matters, please see Note 15(d).

EMPLOYEES

As of December 31, 2017, we had 7,977 full-time employees. The following table sets forth the number of our employees by

business segment as of December 31, 2017:

Business Segment
Electric Transmission & Distribution .............................................................................
Natural Gas Distribution .................................................................................................
Energy Services...............................................................................................................
Other Operations .............................................................................................................
Total ..............................................................................................................................

Number
Represented
by Collective
Bargaining Groups

Number

2,816

3,316

297

1,548

7,977

1,452

1,200

—

127

2,779

For information about the status of collective bargaining agreements, see Note 7(f) to our consolidated financial statements.

EXECUTIVE OFFICERS
(as of February 9, 2018)

Name
Milton Carroll.............................
Scott M. Prochazka ....................
William D. Rogers......................
Tracy B. Bridge ..........................
Scott E. Doyle ............................
Joseph J. Vortherms....................
Dana C. O’Brien.........................
Sue B. Ortenstone.......................

Age

Title

Executive Chairman

President and Chief Executive Officer and Director

Executive Vice President and Chief Financial Officer

Executive Vice President and President, Electric Division

Senior Vice President, Natural Gas Distribution

Senior Vice President, Energy Services

Senior Vice President and General Counsel

Senior Vice President and Chief Human Resources Officer

Milton Carroll has served on the Board of Directors of CenterPoint Energy or its predecessors since 1992. He has served
as Executive Chairman of CenterPoint Energy since June 2013 and as Chairman from September 2002 until May 2013. Mr. Carroll
has served as a director of Halliburton Company since 2006 and Western Gas Holdings, LLC, the general partner of Western Gas
Partners, LP, since 2008. He has served as a director of Health Care Service Corporation since 1998 and as its chairman since
15

2002. He previously served as a director of LyondellBasell Industries N.V. from July 2010 to July 2016 as well as LRE GP, LLC,
the general partner of LRR Energy, L.P., from November 2011 to January 2014.

Scott M. Prochazka has served as a Director and President and Chief Executive Officer (CEO) of CenterPoint Energy since
January 1, 2014. He previously served as Executive Vice President and Chief Operating Officer from July 2012 to December
2013; as Senior Vice President and Division President, Electric Operations from May 2011 through July 2012; as Division Senior
Vice President, Electric Operations of Houston Electric from February 2009 to May 2011; as Division Senior Vice President,
Regional Operations of CERC from February 2008 to February 2009; and as Division Vice President, Customer Service Operations,
from October 2006 to February 2008. He currently serves on the Boards of Directors of Enable GP, LLC, the general partner of
Enable Midstream Partners, LP, Gridwise Alliance as its Chairman, Edison Electric Institute, Electric Power Research Institute,
American Gas Association, Greater Houston Partnership, United Way of Houston, Junior Achievement of South Texas and the
Kinder Institute Advisory Board.

William D. Rogers has served as Executive Vice President and Chief Financial Officer of CenterPoint Energy since March
2015. He previously served as Executive Vice President, Finance and Accounting from February 2015 to March 2015. Prior to
joining CenterPoint Energy, Mr. Rogers was Vice President and Treasurer of American Water Works Company, Inc., the largest
publicly traded U.S. water and wastewater utility company, from October 2010 to January 2015. Mr. Rogers was also the Chief
Financial Officer of NV Energy, Inc., an investor-owned utility headquartered in Las Vegas serving approximately 1.5 million
electric and gas customers in Nevada and with annual revenues of approximately $3 billion, from February 2007 to February 2010.
He has previously served as NV Energy’s vice president of finance, risk and tax, as well as corporate treasurer. Before joining NV
Energy in June 2005, Mr. Rogers was a managing director in capital markets at Merrill Lynch and prior to that in a similar role at
JPMorgan Chase in New York. He currently serves on the Boards of Directors of Enable GP, LLC, the general partner of Enable
Midstream Partners, LP, the West Point Association of Graduates and Sheltering Arms of New York.

Tracy B. Bridge has served as Executive Vice President and President, Electric Division since February 2014. He previously
served as Senior Vice President and Division President, Electric Operations from September 2012 to February 2014; as Senior
Vice President and Division President, Gas Distribution Operations from May 2011 to September 2012; as Division Senior Vice
President - Support Operations from February 2008 to May 2011; and as Division Vice President Regional Operations of CERC
from January 2007 to February 2008. Mr. Bridge has more than 35 years of utility experience. He currently serves as President
of the Executive Committee of the Board of Directors of Rebuilding Together Houston.

Scott E. Doyle has served as Senior Vice President, Natural Gas Distribution since March 2017. With more than 20 years of
utility experience, he previously served as Senior Vice President, Regulatory and Public Affairs from February 2014 to March
2017; as Division Vice President, Rates and Regulatory from April 2012 to February 2014; and as Division Vice President, Regional
Operations from March 2010 to April 2012. Mr. Doyle currently serves on the board of Goodwill Industries of Houston, and he
previously served on the boards of the Texas Gas Association and the Association of Electric Companies of Texas.

Joseph J. Vortherms has served as Senior Vice President, Energy Services since March 2017. He previously served as Vice
President, Energy Services from November 2015 to March 2017; as Vice President, Regional Operations in Minnesota from
October 2014 to November 2015; as Division Vice President, Regional Operations from April 2012 to October 2014; and as
Director, Home Service Plus from January 2007 to April 2012. Mr. Vortherms currently serves on the Southern Gas Association
Executive Council as well as the American Gas Association Scenario Planning Council. He previously served on the boards of
the Minnesota Region American Red Cross and the Minnesota Business Partnership.

Dana C. O’Brien has served as Senior Vice President and General Counsel of CenterPoint Energy since May 2014.
Additionally, she served as Corporate Secretary of the Company until October 2017. Before joining CenterPoint Energy, Ms.
O’Brien was Chief Legal Officer and Chief Compliance Officer and a member of the executive board at CEVA Logistics, a Dutch-
based logistics company, from August 2007 to April 2014. She previously served as the general counsel at EGL, Inc. from October
2005 to July 2007 and Quanta Services, Inc. from January 2001 to October 2005. Ms. O’Brien serves as a trustee for the Association
of Women Attorneys Foundation, as a member of the Board of Directors of Ronald McDonald House Houston and as a member
of the Board of Directors of Child Advocates, Inc.

Sue B. Ortenstone has served as Senior Vice President and Chief Human Resources Officer of CenterPoint Energy since
February 2014. Prior to joining CenterPoint Energy, Ms. Ortenstone was Senior Vice President and Chief Administrative Officer
at Copano Energy from July 2012 to May 2013. Before joining Copano, she spent more than 30 years at El Paso Corporation and
served most recently as Senior Vice President and then Executive Vice President and Chief Administrative Officer from November
2003 to May 2012. Ms. Ortenstone serves on the Industrial Advisory Board in the College of Engineering at the University of
Wisconsin, and until October 2017, she served on the Advisory Board for Civil, Environmental and Geologic Engineering as well.
Ms. Ortenstone also serves on the Board of Trustees for Northwest Assistance Ministries of Houston.

Item 1A.

Risk Factors

We are a holding company that conducts all of our business operations through subsidiaries, primarily Houston Electric and
CERC. We also own interests in Enable. The following, along with any additional legal proceedings identified or incorporated by
reference in Item 3 of this report, summarizes the principal risk factors associated with our holding company, the businesses
conducted by our subsidiaries and our interests in Enable. However, additional risks and uncertainties either not presently known
or not currently believed by management to be material may also adversely affect our businesses.

Risk Factors Associated with Our Consolidated Financial Condition

We are a holding company with no operations or operating assets of our own. As a result, we depend on distributions from
our subsidiaries and from Enable to meet our payment obligations and to pay dividends on our common stock, and provisions
of applicable law or contractual restrictions could limit the amount of those distributions.

We derive all of our operating income from, and hold all of our assets through, our subsidiaries, including our interests in
Enable. As a result, we depend on distributions from our subsidiaries and Enable to meet our payment obligations and to pay
dividends on our common stock. In general, our subsidiaries are separate and distinct legal entities and have no obligation to
provide us with funds for our payment obligations, whether by dividends, distributions, loans or otherwise. In addition, provisions
of applicable law, such as those limiting the legal sources of dividends, limit our subsidiaries’ and Enable’s ability to make payments
or other distributions to us, and our subsidiaries or Enable could agree to contractual restrictions on their ability to make distributions.
For a discussion of risks that may impact the amount of cash distributions we receive with respect to our interests in Enable, please
read “ — Additional Risk Factors Affecting Our Interests in Enable Midstream Partners, LP — Our cash flows will be adversely
impacted if we receive less cash distributions from Enable than we currently expect” and “ — Other Risk Factors Affecting Our
Businesses or Our Interests in Enable Midstream Partners, LP — Our or Enable’s potential business strategies and strategic
initiatives, including merger and acquisition activities and the disposition of assets or businesses, may not be completed or perform
as expected.”

Our right to receive any assets of any subsidiary, and therefore the right of our creditors to participate in those assets, will be
effectively subordinated to the claims of that subsidiary’s creditors, including trade creditors. In addition, even if we were a creditor
of any subsidiary, our rights as a creditor would be subordinated to any security interest in the assets of that subsidiary and any
indebtedness of the subsidiary senior to that held by us.

If we are unable to arrange future financings on acceptable terms, our ability to refinance existing indebtedness could be

limited.

Our businesses are capital intensive. We depend (i) on long-term debt to finance a portion of our capital expenditures and
refinance our existing debt, (ii) on short-term borrowings through our revolving credit facilities and commercial paper programs
and (iii) on distributions from our interests in Enable to satisfy liquidity needs to the extent not satisfied by cash flow from our
business operations; we may also depend on the net proceeds from a potential sale of common units we own in Enable. As of
December 31, 2017, we had $8.8 billion of outstanding indebtedness on a consolidated basis, which includes $1.9 billion of non-
recourse Securitization Bonds. As of December 31, 2017, approximately $50 million principal amount of this debt is required to
be paid through 2020. This amount excludes principal repayments of approximately $1.1 billion on Securitization Bonds, for
which dedicated revenue streams exist. Our future financing activities may be significantly affected by, among other things:

•

general economic and capital market conditions;

credit availability from financial institutions and other lenders;

volatility or fluctuations in distributions from Enable’s units or volatility in Enable’s unit price;

investor confidence in us and the markets in which we operate;

• maintenance of acceptable credit ratings;

• market expectations regarding our future earnings and cash flows;

•

our ability to access capital markets on reasonable terms;
17

•

our exposure to GenOn (formerly known as RRI Energy, Inc., Reliant Energy and RRI), a wholly-owned subsidiary of
NRG and currently the subject of bankruptcy proceedings, in connection with certain indemnification obligations;

incremental collateral that may be required due to regulation of derivatives; and

provisions of relevant tax and securities laws.

As of December 31, 2017, Houston Electric had approximately $2.9 billion aggregate principal amount of general mortgage
bonds outstanding under the General Mortgage, including approximately $118 million held in trust to secure pollution control
bonds for which we are obligated. Additionally, as of December 31, 2017, Houston Electric had approximately $102 million
aggregate principal amount of first mortgage bonds outstanding under the Mortgage. Houston Electric may issue additional general
mortgage bonds on the basis of retired bonds, 70% of property additions or cash deposited with the trustee. Approximately $4.2
billion of additional first mortgage bonds and general mortgage bonds in the aggregate could be issued on the basis of retired
bonds and 70% of property additions as of December 31, 2017. However, Houston Electric has contractually agreed that it will
not issue additional first mortgage bonds, subject to certain exceptions.

Our current credit ratings are discussed in “Management’s Discussion and Analysis of Financial Condition and Results of
Operations - Liquidity and Capital Resources — Other Matters — Impact on Liquidity of a Downgrade in Credit Ratings” in Item
7 of Part II of this report. These credit ratings may not remain in effect for any given period of time and one or more of these
ratings may be lowered or withdrawn entirely by a rating agency. We note that these credit ratings are not recommendations to
buy, sell or hold our securities. Each rating should be evaluated independently of any other rating. Any future reduction or withdrawal
of one or more of our credit ratings could have a material adverse impact on our ability to access capital on acceptable terms.

An impairment of goodwill, long-lived assets, including intangible assets, and equity and cost method investments could

reduce our earnings.

Goodwill is recorded when the purchase price of a business exceeds the fair market value of the tangible and separately
measurable intangible net assets. Accounting principles generally accepted in the United States of America require us to test
goodwill for impairment on an annual basis or when events or circumstances occur indicating that goodwill might be impaired.
Long-lived assets, including intangible assets with finite useful lives, are reviewed for impairment whenever events or changes
in circumstances indicate that the carrying amount may not be recoverable.

For investments we account for under the equity or cost method, the impairment test considers whether the fair value of such
investment as a whole, not the underlying net assets, has declined and whether that decline is other than temporary. For example,
if Enable’s unit price, distributions or earnings were to decline, and that decline is deemed to be other than temporary, we could
determine that we are unable to recover the carrying value of our equity investment in Enable. Considerable judgment is used in
determining if an impairment loss is other than temporary and the amount of any impairment. A sustained low Enable common
unit price could result in our recording impairment charges in the future.

Should our annual impairment test or another periodic impairment test, as described above, indicate the fair value of our assets
is less than the carrying value, we would be required to take a non-cash charge to earnings with a correlative effect on equity and
balance sheet leverage as measured by debt to total capitalization. A non-cash impairment charge could materially adversely impact
our results of operations and financial condition.

Increased utilization due to changing demographics, poor investment performance of the pension plan and other factors
adversely affecting the calculation of pension liabilities could unfavorably impact our results of operations, liquidity and
financial position.

We maintain a qualified defined benefit pension plan covering substantially all employees. Our costs of providing this plan
are dependent upon a number of factors including the investment returns on plan assets, the level of interest rates used to calculate
the funded status of the plan, our contributions to the plan and government regulations with respect to funding requirements and
the calculation of plan liabilities. Funding requirements may increase and we may be required to make unplanned contributions
in the event of a decline in the market value of plan assets, a decline in the interest rates used to calculate the present value of
future plan obligations or government regulations that increase minimum funding requirements or the pension liability. In addition
to affecting our funding requirements, each of these factors could adversely affect our results of operations, liquidity and financial
position.

The costs of providing health care benefits to our employees and retirees may increase substantially and adversely affect our

results of operations and financial condition.

We provide health care benefits to eligible employees and retirees through self-insured plans. In recent years, the costs of
providing these benefits have risen due to increasing health care costs and increased levels of large individual health care claims
and overall health care claims, and we anticipate that such costs will continue to rise. Further, the effects of health care reform or
any future legislative changes could also materially affect our health care benefit programs and costs. Any potential changes and
resulting cost impacts, which are likely to be passed on to us, cannot be determined with certainty at this time. Our costs of
providing these benefits could also increase materially in the future should there be a material reduction in the amount of the
recovery of these costs through our rates or should significant delays develop in the timing of the recovery of such costs, which
could adversely affect our results of operations and liquidity.

The use of derivative contracts in the normal course of business by us, our subsidiaries or Enable could result in financial

losses that could negatively impact our results of operations and those of our subsidiaries or Enable.

We and our subsidiaries use derivative instruments, such as swaps, options, futures and forwards, to manage our commodity,
weather and financial market risks. Enable may also use such instruments from time to time to manage its commodity and financial
market risks. We, including our subsidiaries, or Enable could recognize financial losses as a result of volatility in the market values
or ineffectiveness of these contracts or should a counterparty fail to perform. Additionally, in the absence of actively quoted market
prices and pricing information from external sources, the valuation of these financial instruments can involve management’s
judgment or use of estimates. As a result, changes in the underlying assumptions or use of alternative valuation methods could
affect the reported fair value of these contracts.

If we redeem the ZENS prior to their maturity in 2029, our ultimate tax liability and redemption payments would result in
significant cash payments, which would adversely impact our cash flows. Similarly, a significant amount of exchanges of ZENS
by ZENS holders could adversely impact our cash flows.

We have approximately $828 million principal amount of ZENS outstanding as of December 31, 2017. We own shares of TW
Securities equal to approximately 100% of the reference shares used to calculate our obligation to the holders of the ZENS. We
may redeem all of the ZENS at any time at a redemption amount per ZENS equal to the higher of the contingent principal amount
per ZENS ($505 million in the aggregate, or $35.54 per ZENS, as of December 31, 2017) or the sum of the current market value
of the reference shares attributable to one ZENS at the time of redemption. In the event we redeem the ZENS, in addition to the
redemption amount, we would be required to pay deferred taxes related to the ZENS. Our ultimate tax liability related to the
ZENS continues to increase by the amount of the tax benefit realized each year. If the ZENS had been redeemed on December 31,
2017, deferred taxes of approximately $521 million would have been payable by us in 2017, based on 2017 tax rates in effect. In
addition, if all the shares of TW Securities had been sold on December 31, 2017 in order to fund the aggregate redemption amount,
capital gains taxes of approximately $297 million would have been payable by us in 2017, based on 2017 tax rates in effect.
Similarly, a significant amount of exchanges of ZENS by ZENS holders could adversely impact our cash flows. This could happen
if our creditworthiness were to drop or the market for the ZENS were to become illiquid, or for some other reason. While funds
for the payment of cash upon exchange of ZENS could be obtained from the sale of the shares of TW Securities that we own or
from other sources, ZENS exchanges result in a cash outflow because tax deferrals related to the ZENS and TW Securities shares
would typically cease when ZENS are exchanged and TW Securities shares are sold.

Risk Factors Affecting Our Electric Transmission & Distribution Business

Rate regulation of Houston Electric’s business may delay or deny Houston Electric’s ability to earn an expected return and

fully recover its costs.

Houston Electric’s rates are regulated by certain municipalities and the PUCT based on an analysis of its invested capital, its
expenses and other factors in a test year in comprehensive base rate proceedings (i.e., general rate cases) subject to periodic review
and adjustment. Each of these rate proceedings is subject to third-party intervention and appeal, and the timing of a general base
rate proceeding may be out of Houston Electric’s control. The rates that Houston Electric is allowed to charge may not match its
costs at any given time, which is referred to as “regulatory lag.”

Though several interim rate adjustment mechanisms have been implemented to reduce the effects of regulatory lag, these
adjustment mechanisms are subject to the applicable regulatory body’s approval and are subject to limitations that may reduce
Houston Electric’s ability to adjust rates. For example, the DCRF mechanism adjusts an electric utility’s rates for increases in net
distribution-invested capital (e.g., distribution plant and intangible plant and communication equipment) since its last
comprehensive base rate proceeding, but Houston Electric may only make a DCRF filing once per calendar year. The TCOS
19

mechanism allows a transmission service provider to update its wholesale transmission rates to reflect changes in transmission-
related invested capital, but is only available twice per calendar year.

Houston Electric can make no assurance that filings for such mechanisms will result in favorable adjustments to rates.
Notwithstanding the application of the rate mechanisms discussed above, the regulatory process by which rates are determined is
subject to change as a result of the legislative process or rulemaking, as the case may be, and may not always be available or result
in rates that will produce recovery of Houston Electric’s costs or enable Houston Electric to earn an expected return. In addition,
changes to the interim adjustment mechanisms could result in an increase in regulatory lag or otherwise impact Houston Electric’s
ability to recover its costs in a timely manner. To the extent the regulatory process does not allow Houston Electric to make a full
and timely recovery of appropriate costs, its results of operations, financial condition and cash flows could be adversely affected.

Disruptions at power generation facilities owned by third parties could interrupt Houston Electric’s sales of transmission

and distribution services.

Houston Electric transmits and distributes to customers of REPs electric power that the REPs obtain from power generation
facilities owned by third parties. Houston Electric does not own or operate any power generation facilities. If power generation
is disrupted or if power generation capacity is inadequate, Houston Electric’s sales of transmission and distribution services may
be diminished or interrupted, and its results of operations, financial condition and cash flows could be adversely affected.

Houston Electric’s revenues and results of operations are seasonal.

A significant portion of Houston Electric’s revenues is derived from rates that it collects from each REP based on the amount
of electricity it delivers on behalf of such REP. Thus, Houston Electric’s revenues and results of operations are subject to seasonality,
weather conditions and other changes in electricity usage, with revenues generally being higher during the warmer months.
Unusually mild weather in the warmer months could diminish our results of operations and harm our financial condition. Conversely,
extreme warm weather conditions could increase our results of operations in a manner that would not likely be annually recurring.

Houston Electric could be subject to higher costs and fines or other sanctions as a result of mandatory reliability standards.

The FERC has jurisdiction with respect to ensuring the reliability of electric transmission service, including transmission
facilities owned by Houston Electric and other utilities within ERCOT. The FERC has designated the NERC as the ERO to
promulgate standards, under FERC oversight, for all owners, operators and users of the bulk power system. The FERC has approved
the delegation by the NERC of authority for reliability in ERCOT to the Texas RE, a Texas non-profit corporation. Compliance
with the mandatory reliability standards may subject Houston Electric to higher operating costs and may result in increased capital
expenditures. In addition, if Houston Electric were to be found to be in noncompliance with applicable mandatory reliability
standards, it could be subject to sanctions, including substantial monetary penalties.

A substantial portion of Houston Electric’s receivables is concentrated in a small number of REPs, and any delay or default

in such payments could adversely affect Houston Electric’s cash flows, financial condition and results of operations.

Houston Electric’s receivables from the distribution of electricity are collected from REPs that supply the electricity Houston
Electric distributes to their customers. As of December 31, 2017, Houston Electric did business with approximately 68 REPs.
Adverse economic conditions, structural problems in the market served by ERCOT or financial difficulties of one or more REPs
could impair the ability of these REPs to pay for Houston Electric’s services or could cause them to delay such payments. Houston
Electric depends on these REPs to remit payments on a timely basis. Applicable regulatory provisions require that customers be
shifted to another REP or a provider of last resort if a REP cannot make timely payments. Applicable PUCT regulations significantly
limit the extent to which Houston Electric can apply normal commercial terms or otherwise seek credit protection from firms
desiring to provide retail electric service in its service territory, and Houston Electric thus remains at risk for payments related to
services provided prior to the shift to another REP or the provider of last resort. A significant portion of Houston Electric’s billed
receivables from REPs are from affiliates of NRG and Vistra Energy Corp., formerly known as TCEH Corp. Houston Electric’s
aggregate billed receivables balance from REPs as of December 31, 2017 was $215 million Approximately 34% and 12% of this
amount was owed by affiliates of NRG and Vistra Energy Corp., respectively. Any delay or default in payment by REPs could
adversely affect Houston Electric’s cash flows, financial condition and results of operations. If a REP were unable to meet its
obligations, it could consider, among various options, restructuring under the bankruptcy laws, in which event such REP might
seek to avoid honoring its obligations, and claims might be made by creditors involving payments Houston Electric had received
from such REP.

The AMS deployed throughout Houston Electric’s service territory may experience unexpected problems with respect to the

timely receipt of accurate metering data.

Houston Electric has deployed an AMS throughout its service territory, which integrates equipment and computer software
from various vendors to eliminate the need for physical meter readings to be taken at consumers’ premises, such as monthly
readings for billing purposes and special readings associated with a customer’s change in REPs or the connection or disconnection
of electric service. Unanticipated difficulties could be encountered during the operation of the AMS, including failures or
inadequacy of equipment or software, difficulties in integrating the various components of the AMS, changes in technology, cyber-
security issues and factors outside the control of Houston Electric, which could result in delayed or inaccurate metering data that
might lead to delays or inaccuracies in the calculation and imposition of delivery or other charges, which could have a material
adverse effect on Houston Electric’s results of operations, financial condition and cash flows.

Risk Factors Affecting Our Natural Gas Distribution and Energy Services Businesses

Rate regulation of CERC’s business may delay or deny CERC’s ability to earn an expected return and fully recover its costs.

CERC’s rates for NGD are regulated by certain municipalities (in Texas only) and state commissions based on an analysis of
NGD’s invested capital, expenses and other factors in a test year (often either fully or partially historic) in comprehensive base
rate proceedings, subject to periodic review and adjustment. Each of these proceedings is subject to third-party intervention and
appeal, and the timing of a general base rate proceeding may be out of CERC’s control. Thus, the rates that CERC is allowed to
charge may not match its costs at any given time, resulting in what is referred to as “regulatory lag.”

Though several interim rate adjustment mechanisms have been approved by jurisdictional regulatory authorities and
implemented by NGD to reduce the effects of regulatory lag, such adjustment mechanisms are subject to the applicable regulatory
body’s approval and are subject to certain limitations that may reduce NGD’s ability to adjust its rates.

Arkansas allows public utilities to elect to have their rates regulated pursuant to a FRP, providing for a utility’s base rates to
be adjusted once a year. In each of Louisiana, Mississippi and Oklahoma, NGD makes annual filings utilizing various formula
rate mechanisms that adjust rates based on a comparison of authorized return to actual return to achieve the allowed return rates
in those jurisdictions. Additionally, in Minnesota, the MPUC implemented a full revenue decoupling pilot program, which separates
approved revenues from the amount of natural gas used by its customers. The effectiveness of these filings and programs depends
on the approval of the applicable state regulatory body.

In Texas, NGD’s Houston, South Texas, Beaumont/East Texas and Texas Coast divisions each submit annual GRIP filings to
recover the incremental capital investments made in the preceding year. NGD must file a general rate case no later than five years
after the initial GRIP implementation date.

NGD can make no assurance that filings for such mechanisms will result in favorable adjustments to rates. Notwithstanding
the application of the rate mechanisms discussed above, the regulatory process by which rates are determined is subject to change
as a result of the legislative process or rulemaking, as the case may be, and may not always be available or result in rates that will
produce recovery of NGD’s costs or enable NGD to earn an expected return. In addition, changes to the interim adjustment
mechanisms could result in an increase in regulatory lag or otherwise impact NGD’s ability to recover its costs in a timely manner.
Additionally, inherent in the regulatory process is some level of risk that jurisdictional regulatory authorities may initiate
investigations of the prudence of operating expenses incurred or capital investments made by NGD and deny the full recovery of
NGD’s cost of service or the full recovery of incurred natural gas costs in rates. To the extent the regulatory process does not allow
NGD to make a full and timely recovery of appropriate costs, its results of operations, financial condition and cash flows could
be adversely affected.

Access to natural gas supplies and pipeline transmission and storage capacity are essential components of reliable service

for CERC’s customers.

CERC depends on third-party service providers to maintain an adequate supply of natural gas and for available storage and
intrastate and interstate pipeline capacity to satisfy NGD’s customers’ needs, all of which are critical to system reliability. CERC
purchases substantially all of NGD’s natural gas supply from intrastate and interstate pipelines. If CERC is unable to secure an
independent natural gas supply of its own or through its affiliates or if third-party service providers fail to timely deliver natural
gas to meet NGD’s requirements, the resulting decrease in CERC’s natural gas supply in its service territories could have a material
adverse effect on its results of operations, cash flows and financial condition. Additionally, a significant disruption, whether through
reduced intrastate and interstate pipeline transmission or storage capacity or other events affecting natural gas supply, including,
but not limited to, operational failures, hurricanes, tornadoes, floods, acts of terrorism or cyber-attacks or changes in legislative
21

or regulatory requirements, could also adversely affect CERC’s business. Further, to the extent that CERC’s natural gas requirements
cannot be met through access to or continued use of existing natural gas infrastructure or if additional infrastructure, including
onshore and offshore exploration and production facilities, gathering and processing systems and pipeline and storage capacity is
not constructed at a rate that satisfies demand, then CERC’s NGD growth could be negatively affected.

CERC’s NGD and Energy Services business, including transportation and storage, whether through the use of AMAs or
other arrangements, are subject to fluctuations in notional natural gas prices as well as geographic and seasonal natural gas
price differentials, which could affect the ability of CERC’s suppliers and customers to meet their obligations or otherwise
adversely affect CERC’s liquidity, results of operations and financial condition.

CERC is subject to risk associated with changes in the notional price of natural gas as well as geographic and seasonal natural
gas price differentials that impact our business, including transportation and storage, whether through the use of AMAs or other
arrangements. Increases in natural gas prices might affect CERC’s ability to collect balances due from its customers and, for NGD,
could create the potential for uncollectible accounts expense to exceed the recoverable levels built into CERC’s tariff rates. In
addition, a sustained period of high natural gas prices could (i) decrease demand for natural gas in the areas in which CERC
operates, thereby resulting in decreased sales and revenues and (ii) increase the risk that CERC’s suppliers or customers fail or
are unable to meet their obligations. An increase in natural gas prices would also increase CERC’s working capital requirements
by increasing the investment that must be made to maintain natural gas inventory levels. Additionally, a decrease in natural gas
prices could increase the amount of collateral that CERC must provide under its hedging arrangements. AMAs may be subject to
regulatory approval, and such agreements may not be renewed or may be renewed with less favorable terms.

A decline in CERC’s credit rating could result in CERC having to provide collateral under its shipping or hedging
arrangements or to purchase natural gas, which consequently would increase its cash requirements and adversely affect its
financial condition.

If CERC’s credit rating were to decline, it might be required to post cash collateral under its shipping or hedging arrangements
or to purchase natural gas. If a credit rating downgrade and the resultant cash collateral requirement were to occur at a time when
CERC was experiencing significant working capital requirements or otherwise lacked liquidity, CERC’s results of operations,
financial condition and cash flows could be adversely affected.

CERC’s revenues and results of operations are seasonal.

A substantial portion of CERC’s revenues is derived from natural gas sales. Thus, CERC’s revenues and results of operations
are subject to seasonality, weather conditions and other changes in natural gas usage, with revenues being higher during the winter
months. Unusually mild weather in the winter months could diminish our results of operations and harm our financial condition.
Conversely, extreme cold weather conditions could increase our results of operations in a manner that would not likely be annually
recurring.

The states in which CERC provides regulated local natural gas distribution may, either through legislation or rules, adopt
restrictions regarding organization, financing and affiliate transactions that could have significant adverse impacts on CERC’s
ability to operate.

From time to time, proposals have been put forth in some of the states in which CERC does business to give state regulatory
authorities increased jurisdiction and scrutiny over organization, capital structure, intracompany relationships and lines of business
that could be pursued by registered holding companies and their affiliates that operate in those states. Some of these frameworks
attempt to regulate financing activities, acquisitions and divestitures, and arrangements between the utilities and their affiliates,
and to restrict the level of non-utility business that can be conducted within the holding company structure. Additionally, they may
impose record-keeping, record access, employee training and reporting requirements related to affiliate transactions and reporting
in the event of certain downgrading of the utility’s credit rating.

These regulatory frameworks could have adverse effects on CERC’s ability to conduct its utility operations, to finance its
business and to provide cost-effective utility service. In addition, if more than one state adopts restrictions on similar activities, it
may be difficult for CERC and us to comply with competing regulatory requirements.

CERC’s businesses must compete with alternate energy sources, which could result in CERC marketing less natural gas and

have an adverse impact on CERC’s results of operations, financial condition and cash flows.

CERC competes primarily with alternate energy sources such as electricity and other fuel sources. In some areas, intrastate
pipelines, other natural gas distributors and marketers also compete directly with CERC for natural gas sales to end users. In
22

addition, as a result of federal regulatory changes affecting interstate pipelines, natural gas marketers operating on these pipelines
may be able to bypass CERC’s facilities and market, sell and/or transport natural gas directly to commercial and industrial customers.
Any reduction in the amount of natural gas marketed, sold or transported by CERC as a result of competition may have an adverse
impact on CERC’s results of operations, financial condition and cash flows.

Risk Factors Affecting Our Interests in Enable Midstream Partners, LP

We hold a substantial limited partner interest in Enable (54.1% of the outstanding common units representing limited partner
interests in Enable as of December 31, 2017), as well as 50% of the management rights in Enable’s general partner and a 40%
interest in the incentive distribution rights held by Enable’s general partner. As of December 31, 2017, we owned an aggregate of
14,520,000 Series A Preferred Units representing limited partner interests in Enable. Accordingly, our future earnings, results of
operations, cash flows and financial condition will be affected by the performance of Enable, the amount of cash distributions we
receive from Enable and the value of our interests in Enable. Factors that may have a material impact on Enable’s performance
and cash distributions, and, hence, the value of our interests in Enable, include the risk factors outlined below, as well as the risks
described elsewhere under “Risk Factors” that are applicable to Enable.

Our cash flows will be adversely impacted if we receive less cash distributions from Enable than we currently expect.

Both CERC Corp. and OGE hold their limited partner interests in Enable in the form of common units. We also hold Series
A Preferred Units in Enable. For its Series A Preferred Units, Enable is expected to pay $0.625 per Series A Preferred Unit, or
$2.50 per Series A Preferred Unit on an annualized basis. However, distributions on each Series A Preferred Unit are not mandatory
and are non-cumulative in the event distributions are not declared on the Series A Preferred Units. Enable is expected to pay a
minimum quarterly distribution of $0.2875 per unit, or $1.15 per unit on an annualized basis, on its outstanding common units to
the extent it has sufficient cash from operations after establishment of cash reserves and payment of fees and expenses, including
payments to its general partner and its affiliates (referred to as “available cash”). Enable may not have sufficient available cash
each quarter to enable it (i) to pay distributions on the Series A Preferred Units or (ii) maintain or increase the distributions on its
common units. Additionally, distributions on the Series A Preferred Units reduce the amount of available cash Enable has to pay
distributions on its common units. The amount of cash Enable can distribute on its common units and Series A Preferred Units
will principally depend upon the amount of cash it generates from its operations, which will fluctuate from quarter to quarter based
on, among other things:

•

the fees and gross margins it realizes with respect to the volume of natural gas, NGLs and crude oil that it handles;

the prices of, levels of production of, and demand for natural gas, NGLs and crude oil;

the volume of natural gas, NGLs and crude oil it gathers, compresses, treats, dehydrates, processes, fractionates, transports
and stores;

the relationship among prices for natural gas, NGLs and crude oil;

cash calls and settlements of hedging positions;

• margin requirements on open price risk management assets and liabilities;

•

the level of competition from other companies offering midstream services;

adverse effects of governmental and environmental regulation;

the level of its operation and maintenance expenses and general and administrative costs; and

prevailing economic conditions.

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

•

the level and timing of its capital expenditures;

the cost of acquisitions;

its debt service requirements and other liabilities;

•

fluctuations in its working capital needs;

its ability to borrow funds and access capital markets;

restrictions contained in its debt agreements;

the amount of cash reserves established by its general partner;

distributions paid on its Series A Preferred Units;

any impact on cash levels should any sale of our investment in Enable occur; and

other business risks affecting its cash levels.

The amount of cash Enable has available for distribution to us on its common units and Series A Preferred Units depends
primarily on its cash flow rather than on its profitability, which may prevent Enable from making distributions, even during
periods in which Enable records net income.

The amount of cash Enable has available for distribution on its common units and Series A Preferred Units, depends primarily
upon its cash flows and not solely on profitability, which will be affected by non-cash items. As a result, Enable may make cash
distributions during periods when it records losses for financial accounting purposes and may not make cash distributions during
periods when it records net earnings for financial accounting purposes.

Enable’s Series A Preferred Units are required to be redeemed in certain circumstances if they are not eligible for trading

on the NYSE, and Enable may not have sufficient funds to redeem its Series A Preferred Units if required to do so.

As a holder of Enable’s Series A Preferred Units, we may request that Enable list those units for trading on the NYSE. If
Enable is unable to list the Series A Preferred Units in certain circumstances, it will be required to redeem the Series A Preferred
Units. There can be no assurance that Enable would have sufficient financial resources available to satisfy its obligation to redeem
the Series A Preferred Units. In addition, mandatory redemption of the Series A Preferred Units could have a material adverse
effect on Enable’s business, financial position, results of operations and ability to make quarterly cash distributions to its unitholders.

We are not able to exercise control over Enable, which entails certain risks.

Enable is controlled jointly by CERC Corp. and OGE, who each own 50% of the management rights in the general partner
of Enable. The board of directors of Enable’s general partner is composed of an equal number of directors appointed by OGE and
by us, the president and chief executive officer of Enable’s general partner and three directors who are independent as defined
under the independence standards established by the NYSE. Accordingly, we are not able to exercise control over Enable.

Although we jointly control Enable with OGE, we may have conflicts of interest with Enable that could subject us to claims

that we have breached our fiduciary duty to Enable and its unitholders.

CERC Corp. and OGE each own 50% of the management rights in Enable’s general partner, as well as limited partner interests
in Enable, and interests in the incentive distribution rights held by Enable’s general partner. We also hold Series A Preferred Units
in Enable. Conflicts of interest may arise between us and Enable and its unitholders. Our joint control of the general partner of
Enable may increase the possibility of claims of breach of fiduciary or contractual duties including claims of conflicts of interest
related to Enable. In resolving these conflicts, we may favor our own interests and the interests of our affiliates over the interests
of Enable and its unitholders as long as the resolution does not conflict with Enable’s partnership agreement. These circumstances
could subject us to claims that, in favoring our own interests and those of our affiliates, we breached a fiduciary or contractual
duty to Enable or its unitholders.

Enable’s contracts are subject to renewal risks.

As contracts with its existing suppliers and customers expire, Enable negotiates extensions or renewals of those contracts or
enter into new contracts with other suppliers and customers. Enable may be unable to extend or renew existing contracts or enter
into new contracts on favorable commercial terms, if at all. Depending on prevailing market conditions at the time of an extension
or renewal, gathering and processing customers with fee based contracts may desire to enter into contracts under different fee
arrangements and gathering and processing customers with contracts that contain minimum volume commitments may desire to
24

enter into contracts without minimum volume commitments. Likewise, Enable’s transportation and storage customers may choose
not to extend or renew expiring contracts based on the economics of the related areas of production. To the extent Enable is unable
to renew or replace its expiring contracts on terms that are favorable, if at all, or successfully manage its overall contract mix over
time, its financial position, results of operations and ability to make cash distributions could be adversely affected.

Enable depends on a small number of customers for a significant portion of its gathering and processing revenues and its
transportation and storage revenues. The loss of, or reduction in volumes from, these customers could result in a decline in
sales of its gathering and processing or transportation and storage services and adversely affect its financial position, results
of operations and ability to make cash distributions.

For the year ended December 31, 2017, 57% of Enable’s gathered natural gas volumes were attributable to the affiliates of
Continental, Vine, GeoSouthern, XTO Energy and Tapstone Energy and 51% of its transportation and storage service revenues
were attributable to our affiliates or affiliates of Spire, American Electric Power Company, OGE and Continental. The loss of all
or even a portion of the gathering and processing or transportation and storage services for any of these customers, the failure to
extend or replace these contracts or the extension or replacement of these contracts on less favorable terms, as a result of competition
or otherwise, could adversely affect Enable’s financial position, results of operations and ability to make cash distributions.

Enable’s businesses are dependent, in part, on the drilling and production decisions of others.

Enable’s businesses are dependent on the drilling and production of natural gas and crude oil. Enable has no control over the
level of drilling activity in its areas of operation, or the amount of natural gas, NGL or crude oil reserves associated with wells
connected to its systems. In addition, as the rate at which production from wells currently connected to its systems naturally
declines over time, Enable’s gross margin associated with those wells will also decline. To maintain or increase throughput levels
on its gathering and transportation systems and the asset utilization rates at its natural gas processing plants, Enable’s customers
must continually obtain new natural gas, NGL and crude oil supplies. The primary factors affecting Enable’s ability to obtain new
supplies of natural gas, NGLs and crude oil and attract new customers to its assets are the level of successful drilling activity near
its systems, its ability to compete for volumes from successful new wells and its ability to expand its capacity as needed. If Enable
is not able to obtain new supplies of natural gas, NGLs and crude oil to replace the natural decline in volumes from existing wells,
throughput on its gathering, processing, transportation and storage facilities would decline, which could adversely affect its financial
position, results of operations and ability to make cash distributions. Enable has no control over producers or their drilling and
production decisions, which are affected by, among other things:

•

the availability and cost of capital;

prevailing and projected commodity prices, including the prices of natural gas, NGLs and crude oil;

demand for natural gas, NGLs and crude oil;

levels of reserves;

geological considerations;

environmental or other governmental regulations, including the availability of drilling permits and the regulation of
hydraulic fracturing; and

•

the availability of drilling rigs and other costs of production and equipment.

Fluctuations in energy prices can also greatly affect the development of new natural gas, NGL and crude oil reserves. Drilling
and production activity generally decreases as commodity prices decrease. In general terms, the prices of natural gas, NGLs, crude
oil and other hydrocarbon products fluctuate in response to changes in supply and demand, market uncertainty and a variety of
additional factors that are beyond Enable’s control. Because of these and other factors, even if new reserves are known to exist in
areas served by Enable’s assets, producers may choose not to develop those reserves. Declines in natural gas, NGL or crude oil
prices can have a negative impact on exploration, development and production activity and, if sustained, could lead to decreases
in such activity. Sustained low natural gas, NGL or crude oil prices could also lead producers to shut in production from their
existing wells. Sustained reductions in exploration or production activity in Enable’s areas of operation could lead to further
reductions in the utilization of its systems, which could adversely affect Enable’s financial position, results of operations and
ability to make cash distributions.

In addition, it may be more difficult to maintain or increase the current volumes on Enable’s gathering systems and in its
processing plants, as several of the formations in the unconventional resource plays in which it operates generally have higher
initial production rates and steeper production decline curves than wells in more conventional basins. Should Enable determine
that the economics of its gathering assets do not justify the capital expenditures needed to grow or maintain volumes associated
therewith, Enable may reduce such capital expenditures, which could cause revenues associated with these assets to decline over
time.

Enable’s industry is highly competitive, and increased competitive pressure could adversely affect its financial position,

results of operations and ability to make cash distributions.

Enable competes with similar enterprises in its respective areas of operation. The principal elements of competition are rates,
terms of service and flexibility and reliability of service. Enable’s competitors include large energy companies that have greater
financial resources and access to supplies of natural gas, NGLs and crude oil than Enable. Some of these competitors may expand
or construct gathering, processing, transportation and storage systems that would create additional competition for the services
Enable provides to its customers. Excess pipeline capacity in the regions served by Enable’s interstate pipelines could also increase
competition and adversely impact Enable’s ability to renew or enter into new contracts with respect to its available capacity when
existing contracts expire. In addition, Enable’s customers that are significant producers of natural gas or crude oil may develop
their own gathering, processing, transportation and storage systems in lieu of using Enable’s systems. Enable’s ability to renew
or replace existing contracts with its customers at rates sufficient to maintain current revenues and cash flows could be adversely
affected by the activities of its competitors and customers. Further, natural gas utilized as a fuel competes with other forms of
energy available to end users, including electricity, coal and liquid fuels. Increased demand for such forms of energy at the expense
of natural gas could lead to a reduction in demand for natural gas gathering, processing, transportation and storage services. All
of these competitive pressures could adversely affect Enable’s financial position, results of operations and ability to make cash
distributions.

Enable may not be able to recover the costs of its substantial planned investment in capital improvements and additions, and

the actual cost of such improvements and additions may be significantly higher than it anticipates.

Enable’s business plan calls for investment in capital improvements and additions. In Enable’s Form 10-K for the year ended
December 31, 2017, Enable stated that it expects that its expansion capital could range from approximately $450 million to $600
million and its maintenance capital could range from approximately $95 million to $125 million for the year ending December
31, 2018.

The construction of additions or modifications to Enable’s existing systems, and the construction of new midstream assets,
involves numerous regulatory, environmental, political and legal uncertainties, many of which are beyond Enable’s control and
may require the expenditure of significant amounts of capital, which may exceed its estimates. These projects may not be completed
at the planned cost, on schedule or at all. The construction of new pipeline, gathering, treating, processing, compression or other
facilities is subject to construction cost overruns due to labor costs, costs and availability of equipment and materials such as steel,
labor shortages or weather or other delays, inflation or other factors, which could be material. In addition, the construction of these
facilities is typically subject to the receipt of approvals and permits from various regulatory agencies. Those agencies may not
approve the projects in a timely manner, if at all, or may impose restrictions or conditions on the projects that could potentially
prevent a project from proceeding, lengthen its expected completion schedule and/or increase its anticipated cost. Moreover,
Enable’s revenues and cash flows may not increase immediately upon the expenditure of funds on a particular project. For instance,
if Enable expands an existing pipeline or constructs a new pipeline, the construction may occur over an extended period of time,
and Enable may not receive any material increases in revenues or cash flows until the project is completed. In addition, Enable
may construct facilities to capture anticipated future growth in production in a region in which such growth does not materialize.
As a result, the new facilities may not be able to achieve Enable’s expected investment return, which could adversely affect its
financial position, results of operations and ability to make cash distributions.

In connection with Enable’s capital investments, Enable may estimate, or engage a third party to estimate, potential reserves
in areas to be developed prior to constructing facilities in those areas. To the extent Enable relies on estimates of future production
in deciding to construct additions to its systems, those estimates may prove to be inaccurate either in volume or timing due to
numerous uncertainties inherent in estimating future production. To the extent estimates of the volume of new production are
inaccurate, new facilities may not be able to attract sufficient throughput to achieve expected investment return, which could
adversely affect Enable’s financial position, results of operations and ability to make cash distributions. To the extent estimates
in the timing of new production are inaccurate, new facilities may be constructed in advance of the actual need for capacity or
may not be constructed in time to accommodate volume flows, which could adversely affect Enable’s financial position, results
of operations and ability to make cash distributions. In addition, the construction of additions to existing gathering and transportation
assets may require new rights-of-way prior to construction. Those rights-of-way to connect new natural gas supplies to existing
26

gathering lines may be unavailable and Enable may not be able to capitalize on attractive expansion opportunities. Additionally,
it may become more expensive to obtain new rights-of-way or to renew existing rights-of-way. If the cost of renewing or obtaining
new rights-of-way increases, Enable’s financial position, results of operations and ability to make cash distributions could be
adversely affected.

Natural gas, NGL and crude oil prices are volatile, and changes in these prices could adversely affect Enable’s financial

position, results of operations and ability to make cash distributions.

Enable’s financial position, results of operations and ability to make cash distributions could be negatively affected by adverse
changes in the prices of natural gas, NGLs and crude oil depending on factors that are beyond Enable’s control. These factors
include demand for these commodities, which fluctuates with changes in market and economic conditions and other factors,
including the impact of seasonality and weather, general economic conditions, the level of domestic and offshore natural gas
production and consumption, the availability of imported natural gas, LNG, NGLs and crude oil, actions taken by foreign natural
gas and oil producing nations, the availability of local, intrastate and interstate transportation systems, the availability and marketing
of competitive fuels, the impact of energy conservation efforts, technological advances affecting energy consumption and the
extent of governmental regulation and taxation.

Enable’s natural gas processing arrangements expose it to commodity price fluctuations. In 2017, 7%, 35% and 58% of
Enable’s processing plant inlet volumes consisted of keep-whole arrangements, percent-of-proceeds or percent-of-liquids and fee-
based, respectively. If the price at which Enable sells natural gas or NGLs is less than the cost at which Enable purchases natural
gas or NGLs under these arrangements, then Enable’s financial position, results of operations and ability to make cash distributions
could be adversely affected.

At any given time, Enable’s overall portfolio of processing contracts may reflect a net short position in natural gas (meaning
that Enable is a net buyer of natural gas) and a net long position in NGLs (meaning that Enable is a net seller of NGLs). As a
result, Enable’s financial position, results of operations and ability to make cash distributions could be adversely affected to the
extent the price of NGLs decreases in relation to the price of natural gas.

Enable is exposed to credit risks of its customers, and any material nonpayment or nonperformance by its customers could

adversely affect its financial position, results of operations and ability to make cash distributions.

Some of Enable’s customers may experience financial problems that could have a significant effect on their creditworthiness.
Severe financial problems encountered by its customers could limit Enable’s ability to collect amounts owed to it, or to enforce
performance of obligations under contractual arrangements. In addition, many of Enable’s customers finance their activities through
cash flow from operations, the incurrence of debt or the issuance of equity. The combination of reduction of cash flow resulting
from declines in commodity prices, a reduction in borrowing bases under reserve-based credit facility and the lack of availability
of debt or equity financing may result in a significant reduction of its customers’ liquidity and limit their ability to make payment
or perform on their obligations to Enable. Furthermore, some of Enable’s 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 Enable. Financial problems
experienced by Enable’s customers could result in the impairment of its assets, reduction of its operating cash flows and may also
reduce or curtail their future use of its products and services, which could reduce Enable’s revenues.

Enable provides certain transportation and storage services under fixed-price “negotiated rate” contracts that are not subject
to adjustment, even if its cost to perform such services exceeds the revenues received from such contracts, and, as a result,
Enable’s costs could exceed its revenues received under such contracts.

Enable has been authorized by the FERC to provide transportation and storage services at its facilities at negotiated rates. As
of December 31, 2017, approximately 44% of Enable’s aggregate contracted firm transportation capacity on EGT and MRT and
44% of its aggregate contracted firm storage capacity on EGT and MRT, was subscribed under such “negotiated rate” contracts.
These contracts generally do not include provisions allowing for adjustment for increased costs due to inflation, pipeline safety
activities or other factors that are not tied to an applicable tracking mechanism authorized by the FERC. Successful recovery of
any shortfall of revenue, representing the difference between “recourse rates” (if higher) and negotiated rates, is not assured under
current FERC policies. If Enable’s costs increase and it is not able to recover any shortfall of revenue associated with its negotiated
rate contracts, the cash flow realized by Enable’s systems could decrease and, therefore, the cash Enable has available for distribution
could also decrease.

If third-party pipelines and other facilities interconnected to Enable’s gathering, processing or transportation facilities
become partially or fully unavailable for any reason, Enable’s financial position, results of operations and ability to make cash
distributions could be adversely affected.

Enable depends upon third-party pipelines to deliver natural gas to, and take natural gas from, its natural gas transportation
systems and upon third-party pipelines to take crude oil from its crude oil gathering systems. Enable also depends on third-party
facilities to transport and fractionate NGLs that are delivered to the third party at the tailgates of Enable’s processing plants.
Fractionation is the separation of the heterogeneous mixture of extracted NGLs into individual components for end-use sale. For
example, an outage or disruption on certain pipelines or fractionators operated by a third party could result in the shutdown of
certain of Enable’s processing plants and gathering systems, and a prolonged outage or disruption could ultimately result in a
reduction in the volume of natural gas Enable gathers and NGLs it is able to produce. Additionally, Enable depends on third parties
to provide electricity for compression at many of its facilities. Since Enable does not own or operate any of these third-party
pipelines or other facilities, their continuing operation is not within its control. If any of these third-party pipelines or other facilities
become partially or fully unavailable for any reason, Enable’s financial position, results of operations and ability to make cash
distributions could be adversely affected.

Enable does not own all of the land on which its pipelines and facilities are located, which could disrupt its operations.

Enable does not own all of the land on which its pipelines and facilities have been constructed, and it is therefore subject to
the possibility of more onerous terms and/or increased costs to retain necessary land use if it does not have valid rights-of-way or
if such rights-of-way lapse or terminate. Enable may obtain the rights to construct and operate its pipelines for a specific period
of time on lands owned by governmental agencies, American Indian tribes, or other third parties, including on American Indian
allotments, title to which is held in trust by the United States. A loss of these rights, through Enable’s inability to renew right-of-
way contracts or otherwise, could cause it to cease operations temporarily or permanently on the affected land, increase costs
related to the construction and continuing operations elsewhere and adversely affect its financial position, results of operations
and ability to make cash distributions.

Enable conducts a portion of its operations through joint ventures, which subject it to additional risks that could adversely
affect the success of these operations and Enable’s financial position, results of operations and ability to make cash distributions.

Enable conducts a portion of its operations through joint ventures with third parties, including Spectra Energy Partners, LP,
DCP Midstream, LP, Trans Louisiana Gas Pipeline, Inc. and Pablo Gathering LLC. Enable may also enter into other joint venture
arrangements in the future. These third parties may have obligations that are important to the success of the joint venture, such as
the obligation to pay their share of capital and other costs of the joint venture. The performance of these third-party obligations,
including the ability of the third parties to satisfy their obligations under these arrangements, is outside Enable’s control. If these
parties do not satisfy their obligations under these arrangements, Enable’s business may be adversely affected.

Enable’s joint venture arrangements may involve risks not otherwise present when operating assets directly, including, for

example:

• Enable’s joint venture partners may share certain approval rights over major decisions;

• Enable’s joint venture partners may not pay their share of the joint venture’s obligations, leaving Enable liable for their

shares of joint venture liabilities;

• Enable may be unable to control the amount of cash it will receive from the joint venture;

• Enable may incur liabilities as a result of an action taken by its joint venture partners;

• Enable may be required to devote significant management time to the requirements of and matters relating to the joint

ventures;

• Enable’s insurance policies may not fully cover loss or damage incurred by both Enable and its joint venture partners in

certain circumstances;

• Enable’s joint venture partners may be in a position to take actions contrary to its instructions or requests or contrary to

its policies or objectives; and

•

disputes between Enable and its joint venture partners may result in delays, litigation or operational impasses.
28

The risks described above or the failure to continue Enable’s joint ventures or to resolve disagreements with its joint venture
partners could adversely affect its ability to transact the business that is the subject of such joint venture, which would in turn
adversely affect Enable’s financial position, results of operations and ability to make cash distributions. The agreements under
which Enable formed certain joint ventures may subject it to various risks, limit the actions it may take with respect to the assets
subject to the joint venture and require Enable to grant rights to its joint venture partners that could limit its ability to benefit fully
from future positive developments. Some joint ventures require Enable to make significant capital expenditures. If Enable does
not timely meet its financial commitments or otherwise does not comply with its joint venture agreements, its rights to participate,
exercise operator rights or otherwise influence or benefit from the joint venture may be adversely affected. Certain of Enable’s
joint venture partners may have substantially greater financial resources than Enable has and Enable may not be able to secure
the funding necessary to participate in operations its joint venture partners propose, thereby reducing its ability to benefit from
the joint venture.

Under certain circumstances, Spectra Energy Partners, LP could have the right to purchase Enable’s ownership interest in

SESH at fair market value.

Enable owns a 50% ownership interest in SESH. The remaining 50% ownership interest is held by Spectra Energy Partners,
LP. We own 54.1% of Enable’s common units, 100% of its Series A Preferred Units and a 40% economic interest in Enable’s
general partner. Pursuant to the terms of the limited liability company agreement of SESH, as amended, if, at any time, we have
a right to receive less than 50% of Enable’s distributions through our interests in Enable and its general partner, or do not have
the ability to exercise certain control rights, Spectra Energy Partners, LP could have the right to purchase Enable’s interest in
SESH at fair market value, subject to certain exceptions.

Enable’s ability to grow is dependent on its ability to access external financing sources.

Enable expects that it will distribute all of its “available cash” to its unitholders. As a result, Enable is expected to rely
primarily upon external financing sources, including commercial bank borrowings and the issuance of debt and equity securities,
to fund acquisitions and expansion capital expenditures. As a result, to the extent Enable is unable to finance growth externally,
Enable’s cash distribution policy will significantly impair its ability to grow. In addition, because Enable is expected to distribute
all of its available cash, its growth may not be as fast as businesses that reinvest their available cash to expand ongoing operations.

To the extent Enable issues additional units in connection with any acquisitions or expansion capital expenditures, the payment
of distributions on those additional units may increase the risk that Enable will be unable to maintain or increase its per unit
distribution level, which in turn may impact the available cash that it has to distribute on each unit. There are no limitations in
Enable’s partnership agreement on its ability to issue additional units, including units ranking senior to the common units. The
incurrence of additional commercial borrowings or other debt by Enable to finance its growth strategy would result in increased
interest expense, which in turn may negatively impact the available cash that Enable has to distribute to its unitholders.

Enable depends on access to the capital markets to fund its expansion capital expenditures. Historically, unit prices of midstream
master limited partnerships have experienced periods of volatility. In addition, because Enable’s common units are yield-based
securities, rising market interest rates could impact the relative attractiveness of its common units to investors. As a result of capital
market volatility, Enable may be unable to issue equity or debt on satisfactory terms, or at all, which may limit its ability to expand
its operations or make future acquisitions.

Enable’s debt levels may limit its flexibility in obtaining additional financing and in pursuing other business opportunities.

As of December 31, 2017, Enable had approximately $2.6 billion of long-term debt outstanding, excluding the premiums on
their senior notes, $405 million outstanding under its commercial paper program and $450 million outstanding under its unsecured
term loan agreement dated July 31, 2015. Enable has a $1.75 billion revolving credit facility for working capital, capital expenditures
and other partnership purposes, including acquisitions, of which $1.3 billion was available as of February 1, 2018. Enable has the
ability to incur additional debt, subject to limitations in its credit facilities. The levels of Enable’s debt could have important
consequences, including the following:

•

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

a portion of cash flows will be required to make interest payments on the debt, reducing the funds that would otherwise
be available for operations, future business opportunities and distributions;

• Enable’s debt level will make it more vulnerable to competitive pressures or a downturn in its business or the economy

generally; and

• Enable’s debt level may limit its flexibility in responding to changing business and economic conditions.

Enable’s ability to service its debt will depend upon, among other things, its future financial and operating performance, which
will be affected by prevailing economic conditions, commodity prices and financial, business, regulatory and other factors, some
of which are beyond Enable’s control. If operating results are not sufficient to service current or future indebtedness, Enable may
be forced to take actions such as reducing distributions, reducing or delaying business activities, acquisitions, investments or
capital expenditures, selling assets, restructuring or refinancing debt, or seeking additional equity capital. These actions may not
be effected on satisfactory terms, or at all.

Enable’s credit facilities contain operating and financial restrictions, including covenants and restrictions that may be
affected by events beyond Enable’s control, which could adversely affect its financial condition, results of operations and ability
to make distributions.

Enable’s credit facilities contain customary covenants that, among other things, limit its ability to:

•

permit its subsidiaries to incur or guarantee additional debt;

incur or permit to exist certain liens on assets;

dispose of assets;

• merge or consolidate with another company or engage in a change of control;

•

enter into transactions with affiliates on non-arm’s length terms; and

change the nature of its business.

Enable’s credit facilities also require it to maintain certain financial ratios. Enable’s ability to meet those financial ratios can
be affected by events beyond its control, and we cannot assure you that it will meet those ratios. In addition, Enable’s credit
facilities contain events of default customary for agreements of this nature.

Enable’s ability to comply with the covenants and restrictions contained in its credit facilities may be affected by events
beyond its control, including prevailing economic, financial and industry conditions. If market or other economic conditions
deteriorate, Enable’s ability to comply with these covenants may be impaired. If Enable violates any of the restrictions, covenants,
ratios or tests in its credit facilities, a significant portion of its indebtedness may become immediately due and payable. In addition,
Enable’s lenders’ commitments to make further loans to it under the revolving credit facility may be suspended or terminated.
Enable might not have, or be able to obtain, sufficient funds to make these accelerated payments.

Enable may be unable to obtain or renew permits necessary for its operations, which could inhibit its ability to do business.

Performance of Enable’s operations requires that Enable obtain and maintain a number of federal and state permits, licenses
and approvals with terms and conditions containing a significant number of prescriptive limits and performance standards in order
to operate. All of these permits, licenses, approval limits and standards require a significant amount of monitoring, record keeping
and reporting in order to demonstrate compliance with the underlying permit, license, approval limit or standard. Noncompliance
or incomplete documentation of Enable’s compliance status may result in the imposition of fines, penalties and injunctive relief.
A decision by a government agency to deny or delay the issuance of a new or existing material permit or other approval, or to
revoke or substantially modify an existing permit or other approval, could adversely affect Enable’s ability to initiate or continue
operations at the affected location or facility and on its financial condition, results of operations and ability to make cash distributions.

Additionally, in order to obtain permits and renewals of permits and other approvals in the future, Enable may be required to
prepare and present data to governmental authorities pertaining to the potential adverse impact that any proposed pipeline or
processing-related 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 required to prepare applications and to receive authorizations.

Costs of compliance with existing environmental laws and regulations are significant, and the cost of compliance with future
environmental laws and regulations may adversely affect Enable’s financial position, results of operations and ability to make
cash distributions.

Enable is subject to extensive federal, state and local environmental statutes, rules and regulations relating to air quality, water
quality, waste management, wildlife conservation, natural resources and health and safety that could, among other things, delay
or increase its costs of construction, restrict or limit the output of certain facilities and/or require additional pollution control
equipment and otherwise increase costs. For instance, in May 2016, the EPA issued final New Source Performance Standards
governing methane emissions imposing more stringent controls on methane and volatile organic compounds emissions at new
and modified oil and natural gas production, processing, storage, and transmission facilities. These rules have required changes
to Enable’s operations, including the installation of new equipment to control emissions. Additionally, several states are pursuing
similar measures to regulate emissions of methane from new and existing sources. There are significant capital, operating and
other costs associated with compliance with these environmental statutes, rules and regulations. Future federal and state regulations
relating to Enable’s gathering and processing, transmission, and storage operations remain a possibility and could result in increased
compliance costs on its operations. Furthermore, if new or more stringent federal, state or local legal restrictions are adopted in
areas where its oil and natural gas exploration and production customers operate, they could incur potentially significant added
costs to comply with such requirements, experience delays or curtailment in the pursuit of exploration, development, or production
activities, and perhaps even be precluded from drilling wells, some or all of which could adversely affect demand for Enable’s
services to those customers.

There is inherent risk of the incurrence of environmental costs and liabilities in Enable’s operations due to its handling of
natural gas, NGLs, crude oil and produced water, as well as air emissions related to its operations and historical industry operations
and waste disposal practices. These matters 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 Enable’s business activities in many ways,
such as restricting the way it can handle or dispose of wastes or requiring remedial action to mitigate pollution conditions that
may be caused by its operations or that are attributable to former operators. Joint and several strict liability may be incurred,
without regard to fault, under certain of these environmental laws and regulations in connection with discharges or releases of
wastes on, under or from Enable’s properties and facilities, many of which have been used for midstream activities for a number
of years, oftentimes by third parties not under its control. Private parties, including the owners of the properties through which
Enable’s gathering and transportation systems pass and facilities where its wastes are taken for reclamation or disposal, may also
have the right to pursue legal actions to enforce compliance, as well as to seek damages for non-compliance, with environmental
laws and regulations or for personal injury or property damage. For example, an accidental release from one of Enable’s pipelines
could subject it to substantial liabilities arising from environmental cleanup and restoration costs, claims made by neighboring
landowners and other third parties for personal injury and property damage and fines or penalties for related violations of
environmental laws or regulations. Enable may be unable to recover these costs from insurance. Moreover, the possibility exists
that stricter laws, regulations or enforcement policies could significantly increase compliance costs and the cost of any remediation
that may become necessary. Further, stricter requirements could negatively impact Enable’s customers’ production and operations,
resulting in less demand for its services.

Increased regulation of hydraulic fracturing and waste water injection wells could result in reductions or delays in natural
gas production by Enable’s customers, which could adversely affect its financial position, results of operations and ability to
make cash distributions.

Hydraulic fracturing is common practice that is used by many of Enable’s customers to stimulate production of natural gas
and crude oil from dense subsurface rock formations. The hydraulic fracturing process involves the injection of water, sand, and
chemicals under pressure into targeted subsurface formations to fracture the surrounding rock and stimulate production. Hydraulic
fracturing typically is regulated by state oil and natural gas commissions. In addition, certain federal agencies have proposed
additional laws and regulations to more closely regulate the hydraulic fracturing process. In past sessions, Congress has considered,
but not passed, legislation to provide for federal regulation of hydraulic fracturing under the Safe Drinking Water Act and to require
disclosure of the chemicals used in the hydraulic fracturing process. The EPA has issued the Safe Water Drinking Act permitting
guidance for hydraulic fracturing operations involving the use of diesel fuel in fracturing fluids in those states where the EPA is
the permitting authority.

Some states have adopted, and other states have considered adopting, legal requirements that could impose more stringent
permitting, public disclosure or well construction requirements on hydraulic fracturing activities. 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, in some cases banning hydraulic fracturing entirely. If new or more stringent federal, state or
local legal restrictions relating to the hydraulic fracturing process are adopted in areas where Enable’s oil and natural gas exploration
31

and production customers operate, they could incur potentially significant added costs to comply with such requirements, experience
delays or curtailment in the pursuit of exploration, development, or production activities, and perhaps even be precluded from
drilling wells, some or all of which activities could adversely affect demand for Enable’s services to those customers.

State and federal regulatory agencies recently have focused on a possible connection between the operation of injection wells
used for oil and gas waste disposal and seismic activity. Similar concerns have been raised that hydraulic fracturing may also
contribute to seismic activity. When caused by human activity, such events are called induced seismicity. In March 2016, the
United States Geological Survey identified six states with the most significant hazards from induced seismicity, including
Oklahoma, Kansas, Texas, Colorado, New Mexico, and Arkansas. In March 2017, the United States Geological Survey produced
an updated seismic hazard survey that forecasted lower earthquake rates in regions of induced activity, but still showed significantly
elevated hazards in the central and eastern United States. In light of these concerns, some state regulatory agencies have modified
their regulations or issued orders to address induced seismicity. For example, the OCC has implemented volume reduction plans,
and at times required shut-ins, for disposal wells injecting wastewater from oil and gas operations into the Arbuckle formation.
In December 2016, the OCC also released well completion seismicity guidelines for operators in the South Central Oklahoma Oil
Province and the Sooner Trend Anadarko Basin Canadian and Kingfisher Counties that call for hydraulic fracturing operations to
be suspended following earthquakes of certain magnitudes in the vicinity. Certain environmental and other groups have also
suggested that additional federal, state and local laws and regulations may be needed to more closely regulate the hydraulic
fracturing process. Enable cannot predict whether additional federal, state or local laws or regulations applicable to hydraulic
fracturing will be enacted in the future and, if so, what actions any such laws or regulations would require or prohibit. Increased
regulation and attention given to induced seismicity could lead to greater opposition to, and litigation concerning, oil and gas
activities utilizing hydraulic fracturing or injection wells for waste disposal. Additional legislation or regulation could also lead
to operational delays or increased operating costs for Enable’s customers, which in turn could reduce the demand for Enable’s
services.

Other governmental agencies, including the DOE, have evaluated or are evaluating various other aspects of hydraulic fracturing.
These ongoing or proposed studies, depending on their degree of pursuit and any meaningful results obtained, could spur initiatives
to further regulate hydraulic fracturing under the Safe Drinking Water Act or other regulatory mechanisms.

Enable’s operations are subject to extensive regulation by federal, state and local regulatory authorities. Changes or additional
regulatory measures adopted by such authorities could adversely affect Enable’s financial position, results of operations and
ability to make cash distributions.

The rates charged by several of Enable’s pipeline systems, including for interstate gas transportation service provided by its
intrastate pipelines, are regulated by the FERC. Enable’s pipeline operations that are not regulated by the FERC may be subject
to state and local regulation applicable to intrastate natural gas transportation services and crude oil gathering services. The relevant
states in which Enable operates include North Dakota, Oklahoma, Arkansas, Louisiana, Texas, Missouri, Kansas, Mississippi,
Tennessee and Illinois.

The FERC and state regulatory agencies also regulate other terms and conditions of the services Enable may offer. If one of
these regulatory agencies, on its own initiative or due to challenges by third parties, were to lower its tariff rates or deny any rate
increase or other material changes to the types, or terms and conditions, of service Enable might propose or offer, the profitability
of Enable’s pipeline businesses could suffer. If Enable were permitted to raise its tariff rates for a particular pipeline, there might
be significant delay between the time the tariff rate increase is approved and the time that the rate increase actually goes into effect,
which could also limit its profitability. Furthermore, competition from other pipeline systems may prevent Enable from raising
its tariff rates even if regulatory agencies permit it to do so. The regulatory agencies that regulate Enable’s systems periodically
implement new rules, regulations and terms and conditions of services subject to their jurisdiction. New initiatives or orders may
adversely affect the rates charged for Enable’s services or otherwise adversely affect its financial position, results of operations
and cash flows and ability to make cash distributions. Further, should Enable fail to comply with all applicable FERC-administered
statutes, rules, regulations and orders, it could be subject to substantial penalties and fines.

A change in the jurisdictional characterization of some of Enable’s assets by federal, state or local regulatory agencies or a
change in policy by those agencies may result in increased regulation of its assets, which may cause its revenues to decline
and operating expenses to increase.

Enable’s natural gas gathering and intrastate transportation operations are generally exempt from the jurisdiction of the FERC
under the NGA, but FERC regulation may indirectly impact these businesses and the markets for products derived from these
businesses. The FERC’s policies and practices across the range of its oil and natural gas regulatory activities, including, for example,
its policies on interstate open access transportation, ratemaking, capacity release, and market center promotion may indirectly
affect intrastate markets. In recent years, the FERC has pursued pro-competitive policies in its regulation of interstate oil and
32

natural gas pipelines. However, we cannot assure you that the FERC will continue to pursue this approach as it considers matters
such as pipeline rates and rules and policies that may indirectly affect the intrastate natural gas transportation business. Although
the FERC has not made a formal determination with respect to all of Enable’s facilities it considers to be gathering facilities,
Enable believes that its natural gas gathering pipelines meet the traditional tests that the FERC has used to determine that a pipeline
is a gathering pipeline and are therefore not subject to FERC jurisdiction. The distinction between FERC-regulated transmission
services and federally unregulated gathering services, however, has been the subject of substantial litigation, and the FERC
determines whether facilities are gathering facilities on a case-by-case basis, so the classification and regulation of Enable’s
gathering facilities is subject to change based on future determinations by the FERC, the courts or Congress. If the FERC were
to consider the status of an individual facility and determine that the facility and/or services provided by it are not exempt from
FERC regulation under the NGA and that the facility provides interstate service, the rates for, and terms and conditions of, services
provided by such facility would be subject to regulation by the FERC under the NGA or the NGPA. Such regulation could decrease
revenue, increase operating costs, and, depending upon the facility in question, could adversely affect Enable’s financial condition,
results of operations and ability to make cash distributions. In addition, if any of Enable’s facilities were found to have provided
services or otherwise operated in violation of the NGA or the NGPA, this could result in the imposition of substantial civil penalties,
as well as a requirement to disgorge revenues collected for such services in excess of the maximum rates established by the FERC.

Natural gas gathering may receive greater regulatory scrutiny at the state level; therefore, Enable’s natural gas gathering
operations could be adversely affected should they become subject to the application of state regulation of rates and services.
Enable’s gathering operations could also be subject to safety and operational regulations relating to the design, construction, testing,
operation, replacement and maintenance of gathering facilities. We cannot predict what effect, if any, such changes might have
on Enable’s operations, but Enable could be required to incur additional capital expenditures and increased costs depending on
future legislative and regulatory changes.

Other Risk Factors Affecting Our Businesses or Our Interests in Enable Midstream Partners, LP

We are subject to operational and financial risks and liabilities arising from environmental laws and regulations.

•

restricting the way we can handle or dispose of wastes;

limiting or prohibiting construction activities in sensitive areas such as wetlands, coastal regions, or areas inhabited by
endangered species;

requiring remedial action to mitigate environmental conditions caused by our operations, or attributable to former
operations;

enjoining the operations of facilities with permits issued pursuant to such environmental laws and regulations; and

impacting the demand for our services by directly or indirectly affecting the use or price of natural gas.

To comply with these requirements, we may need to spend substantial amounts and devote other resources from time to time

to:

•

construct or acquire new facilities and equipment;

acquire permits for facility operations;

• modify or replace existing and proposed equipment; and

•

clean or decommission waste management areas, fuel storage facilities and other locations.

Failure to comply with these laws and regulations may trigger a variety of administrative, civil and criminal enforcement
measures, including the assessment of monetary penalties, the imposition of remedial actions, and the issuance of orders enjoining
future operations. Certain environmental statutes impose strict joint and several liability for costs required to clean and restore
sites where hazardous substances have been stored, disposed or released. Moreover, it is not uncommon for neighboring landowners
33

and other third parties to file claims for personal injury and property damage allegedly caused by the release of hazardous substances
or other waste products into the environment.

The recent trend in environmental regulation has been to place more restrictions and limitations on activities that may impact
the environment, and thus 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 greater than the amounts we currently anticipate.

Our insurance coverage may not be sufficient. Insufficient insurance coverage and increased insurance costs could adversely

impact our results of operations, financial condition and cash flows.

We currently have general liability and property insurance in place to cover certain of our facilities in amounts that we consider
appropriate. Such policies are subject to certain limits and deductibles and do not include business interruption coverage. Insurance
coverage may not be available in the future at current costs or on commercially reasonable terms, and the insurance proceeds
received for any loss of, or any damage to, any of our facilities may not be sufficient to restore the loss or damage without negative
impact on our results of operations, financial condition and cash flows.

In common with other companies in its line of business that serve coastal regions, Houston Electric does not have insurance
covering its transmission and distribution system, other than substations, because Houston Electric believes it to be cost prohibitive
and believes insurance capacity to be limited. In the future, Houston Electric may not be able to recover the costs incurred in
restoring its transmission and distribution properties following hurricanes or other disasters through issuance of storm restoration
bonds or a change in its regulated rates or otherwise, or any such recovery may not be timely granted. Therefore, Houston Electric
may not be able to restore any loss of, or damage to, any of its transmission and distribution properties without negative impact
on its results of operations, financial condition and cash flows.

Our operations and Enable’s operations are subject to all of the risks and hazards inherent in the gathering, processing,

transportation and storage of natural gas and crude oil, including:

•

damage to pipelines and plants, related equipment and surrounding properties caused by hurricanes, tornadoes, floods,
fires, earthquakes and other natural disasters, acts of terrorism and actions by third parties;

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

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

ruptures, fires and explosions; and

other hazards that could also result in personal injury and loss of life, pollution 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, plant and equipment and pollution or other environmental damage. These risks may also result in curtailment or suspension
of our or Enable’s operations. A natural disaster or other hazard affecting the areas in which we or Enable operate could have a
material adverse effect on our or Enable’s operations.

Enable is not fully insured against all risks inherent in its business. Enable currently has general liability and property insurance
in place to cover certain of its facilities in amounts that Enable considers appropriate. Such policies are subject to certain limits
and deductibles. Enable does not have business interruption insurance coverage for all of its operations. Insurance coverage may
not be available in the future at current costs or on commercially reasonable terms, and the insurance proceeds received for any
loss of, or any damage to, any of Enable’s facilities may not be sufficient to restore the loss or damage without negative impact
on its results of operations and its ability to make cash distributions.

We, Houston Electric and CERC could incur liabilities associated with businesses and assets that we have transferred to

others.

Under some circumstances, we, Houston Electric and CERC could incur liabilities associated with assets and businesses we,
Houston Electric and CERC no longer own. These assets and businesses were previously owned by Reliant Energy, a predecessor
of Houston Electric, directly or through subsidiaries and include:

• merchant energy, energy trading and REP businesses transferred to RRI or its subsidiaries in connection with the
organization and capitalization of RRI prior to its initial public offering in 2001 and now owned by affiliates of NRG;
and

• Texas electric generating facilities transferred to a subsidiary of Texas Genco in 2002, later sold to a third party and now

owned by an affiliate of NRG.

In connection with the organization and capitalization of RRI (now GenOn) and Texas Genco (now an affiliate of NRG),
those companies and/or their subsidiaries assumed liabilities associated with various assets and businesses transferred to them and
agreed to certain indemnity agreements of CenterPoint Energy entities. Such indemnities have applied in cases such as the litigation
arising out of sales of natural gas in California and other markets (the last remaining case involving us is now on appeal, following
the district court’s summary judgment in favor of CES, a subsidiary of CERC Corp.) and various asbestos and other environmental
matters that arise from time to time. In June 2017, GenOn and various affiliates filed for protection under Chapter 11 of the U.S.
Bankruptcy Code. In December 2017, GenOn received court approval of a restructuring plan and is expected to emerge from
Chapter 11 in mid-2018. We, CERC and CES submitted proofs of claim in the bankruptcy proceedings to protect our indemnity
rights. If any of the indemnifying entities were unable to meet their indemnity obligations or satisfy a liability that has been assumed
in the gas market manipulation litigation, we, Houston Electric or CERC could incur liability and be responsible for satisfying
the liability.

In connection with our sale of Texas Genco, the separation agreement was amended to provide that Texas Genco would no
longer be liable for, and we would assume and agree to indemnify Texas Genco against, liabilities that Texas Genco originally
assumed in connection with its organization to the extent, and only to the extent, that such liabilities are covered by certain insurance
policies held by us, and in certain of the asbestos lawsuits we have agreed to continue to defend such claims to the extent they are
covered by insurance maintained by us, subject to reimbursement of the costs of such defense by an NRG affiliate.

Cyber-attacks, physical security breaches, acts of terrorism or other disruptions could adversely impact our or Enable’s

reputation, results of operations, financial condition and/or cash flows.

We and Enable are subject to cyber and physical security risks related to adversaries attacking information technology systems,
network infrastructure, technology and facilities used to conduct almost all of our and Enable’s business which includes (i) managing
operations and other business processes and (ii) protecting sensitive information maintained in the normal course of business. For
example, the operation of our electric transmission and distribution system is dependent on not only physical interconnection of
our facilities but also on communications among the various components of our system. This reliance on information and
communication between and among those components has increased since deployment of smart meters and the intelligent grid.
Similarly, our and Enable’s business operations are interconnected with external networks and facilities. The distribution of natural
gas to our customers requires communications with Enable’s pipeline facilities and third-party systems. The gathering, processing
and transportation of natural gas from Enable’s gathering, processing and pipeline facilities and crude oil gathering pipeline systems
also rely on communications among its facilities and with third-party systems that may be delivering natural gas or crude oil into
or receiving natural gas or crude oil and other products from Enable’s facilities. Disruption of those communications, whether
caused by physical disruption such as storms or other natural disasters, by failure of equipment or technology or by manmade
events, such as cyber-attacks or acts of terrorism, may disrupt our or Enable’s ability to conduct operations and control assets.

Cyber-attacks and unauthorized access could also result in the loss, or unauthorized use, of confidential, proprietary or critical
infrastructure data or security breaches of other information technology systems that could disrupt operations and critical business
functions, adversely affect reputation, increase costs and subject us or Enable to possible legal claims and liability. Further, third
parties, including vendors, suppliers and contractors, who perform certain services for us or administer and maintain our sensitive
information, could also be targets of cyber-attacks and unauthorized access. Neither we nor Enable is fully insured against all
cyber-security risks, any of which could adversely affect our reputation and could have a material adverse effect on either our or
Enable’s results of operations, financial condition and/or cash flows.

In addition, our and Enable’s critical energy infrastructure may be targets of terrorist activities that could disrupt our respective
business operations. In January 2017, the DOE’s Quadrennial Energy Review reported that cyber threats to the electricity system
are increasing in sophistication, magnitude and frequency. Any such disruptions could result in significant costs to repair damaged
facilities and implement increased security measures, which could have a material adverse effect on either our or Enable’s results
of operations, financial condition and/or cash flows.

Failure to maintain the security of personally identifiable information could adversely affect us.

In connection with our business we collect and retain personally identifiable information (e.g., information of our customers,
shareholders, suppliers and employees), and there is an expectation that we will adequately protect that information. The U.S.
regulatory environment surrounding information security and privacy is increasingly demanding. A significant theft, loss or
fraudulent use of the personally identifiable information we maintain, or of our data, by cyber-crime or otherwise could adversely
impact our reputation and could result in significant costs, fines and litigation.

Our results of operations, financial condition and cash flows may be adversely affected if we are unable to successfully

operate our facilities or perform certain corporate functions.

Our performance depends on the successful operation of our facilities. Operating these facilities involves many risks, including:

•

operator error or failure of equipment or processes, including failure to follow appropriate safety protocols;

the handling of hazardous equipment or materials that could result in serious personal injury, loss of life and environmental
and property damage;

operating limitations that may be imposed by environmental or other regulatory requirements;

labor disputes;

information technology or financial system failures, including those due to the implementation and integration of new
technology, that impair our information technology infrastructure, reporting systems or disrupt normal business
operations;

information technology failure that affects our ability to access customer information or causes us to lose confidential or
proprietary data that materially and adversely affects our reputation or exposes us to legal claims; and
catastrophic events such as fires, earthquakes, explosions, leaks, floods, droughts, hurricanes, terrorism, pandemic health
events or other similar occurrences, which may require participation in mutual assistance efforts by us or other utilities
to assist in power restoration efforts.

Such events may result in a decrease or elimination of revenue from our facilities, an increase in the cost of operating our
facilities or delays in cash collections, any of which could have a material adverse effect on our results of operations, financial
condition and/or cash flows.

Our success depends upon our ability to attract, effectively transition, motivate and retain key employees and identify and

develop talent to succeed senior management.

We depend on our senior executive officers and other key personnel. Our success depends on our ability to attract, effectively
transition and retain key personnel. The inability to recruit and retain or effectively transition key personnel or the unexpected
loss of key personnel may adversely affect our operations. In addition, because of the reliance on our management team, our future
success depends in part on our ability to identify and develop talent to succeed senior management. The retention of key personnel
and appropriate senior management succession planning will continue to be critically important to the successful implementation
of our strategies.

Failure to attract and retain an appropriately qualified workforce could adversely impact our results of operations.

Our business is dependent on our ability to recruit, retain, and motivate employees. Certain circumstances, such as an aging
workforce without appropriate replacements, a mismatch of existing skillsets to future needs, or the unavailability of contract
resources may lead to operating challenges such as a lack of resources, loss of knowledge or a lengthy time period associated with
skill development. Our costs, including costs to replace employees, productivity costs and safety costs, may rise. Failure to hire
and adequately train replacement employees, including the transfer of significant internal historical knowledge and expertise to
the new employees, or the future availability and cost of contract labor may adversely affect the ability to manage and operate our
business. If we are unable to successfully attract and retain an appropriately qualified workforce, our results of operations could
be negatively affected.

Climate change legislation and regulatory initiatives could result in increased operating costs and reduced demand for our

or Enable’s services.

Regulatory agencies have from time to time considered adopting legislation, including modification of existing laws and
regulations, to reduce GHGs, and there continues to be a wide-ranging policy and regulatory debate, both nationally and
internationally, regarding the potential impact of GHGs and possible means for their regulation. 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.

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 Clean Air Act, 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 has also expanded its existing GHG
emissions reporting requirements. These permitting and reporting requirements could lead to further regulation of GHGs by the
EPA. As a distributor and transporter of natural gas, or a consumer of natural gas in its pipeline and gathering businesses, CERC’s
or Enable’s revenues, operating costs and capital requirements, as applicable, could be adversely affected as a result of any
regulatory action that would require installation of new control technologies or a modification of its operations or would have the
effect of reducing the consumption of natural gas. Our electric transmission and distribution business, in contrast to some electric
utilities, does not generate electricity and thus is not directly exposed to the risk of high capital costs and regulatory uncertainties
that face electric utilities that burn fossil fuels to generate electricity. Nevertheless, Houston Electric’s revenues could be adversely
affected to the extent any resulting regulatory action has the effect of reducing consumption of electricity by ultimate consumers
within its service territory. Likewise, incentives to conserve energy or use energy sources other than natural gas could result in a
decrease in demand for our services.

Climate changes could adversely impact financial results from our and Enable’s businesses and result in more frequent and

more severe weather events which could adversely affect the results of operations of our businesses.

If climate changes occur that result in warmer temperatures in our service territories, financial results from our and Enable’s
businesses could be adversely impacted. For example, CERC’s NGD could be adversely affected through lower natural gas sales
and Enable’s natural gas gathering, processing and transportation and crude oil gathering businesses could experience lower
revenues. Another possible result of climate change is more frequent and more severe weather events, such as hurricanes or
tornadoes. Since many of our facilities are located along or near the Gulf Coast, increased or more severe hurricanes or tornadoes
could increase our costs to repair damaged facilities and restore service to our customers. When we cannot deliver electricity or
natural gas to customers or our customers cannot receive our services, our financial results can be impacted by lost revenues, and
we generally must seek approval from regulators to recover restoration costs. To the extent we are unable to recover those costs,
or if higher rates resulting from our recovery of such costs result in reduced demand for our services, our future financial results
may be adversely impacted.

We are uncertain how state commissions and local municipalities may require us to respond to the effects of the recent
comprehensive tax reform legislation, and these regulatory requirements may adversely affect our results of operations,
financial condition and cash flows.

On December 22, 2017, President Trump signed into law comprehensive tax reform legislation informally called the Tax Cuts
and Jobs Act, or TCJA, which resulted in significant changes to federal tax laws effective January 1, 2018, including, but not
limited to, a reduction in the corporate income tax rate.

For Houston Electric and NGD, federal income tax expense is included in the rates approved by state commissions and local
municipalities and charged by those utilities to consumers. When Houston Electric and NGD have general rate cases and other
periodic rate adjustments, we expect the lower corporate tax expense resulting from the TCJA (which includes determining the
treatment of EDIT), along with other increases and decreases in our revenue requirements, to be incorporated into Houston Electric’s
and NGD’s future rates. Nevertheless, regulators may require us to respond to the TCJA in other ways, including through faster
recoveries of reductions in federal income tax expense, accounting orders to reflect a liability to return to customers in future rate
proceedings, accelerated returns to consumers of previously collected deferred federal income taxes, increased funding of
infrastructure upgrades, or offsets of future rate increases. The effect on us of any potential return of tax savings resulting from
the TCJA to consumers may differ depending on how each regulatory body requires us to return such savings.

likely parties to a future rate case announced a settlement that requires Houston Electric to make (i) a TCOS filing by February
20, 2018 to reflect the change in the federal income tax rate for Houston Electric’s transmission rate base through July 31, 2017
and account for certain EDIT (and such filing was timely submitted), (ii) a DCRF filing in April 2018 to reflect the change in the
federal income tax rate for Houston Electric’s distribution rate base through December 31, 2017 and (iii) a full rate case filing by
April 30, 2019. The settlement was presented to the PUCT during its open meeting on February 15, 2018. In response to the
settlement, the PUCT did not proceed with a prior proposal to require Houston Electric to file a rate case in the summer of 2018.
The PUCT also amended its prior accounting order to remove the requirement that utilities include carrying costs in the new
regulatory liability.

We can provide no assurances on how any regulatory body will ultimately require us to act. As such, we are currently unable
to determine the impact of these potential regulatory actions in response to the enactment of the TCJA, which may adversely affect
our results of operations, financial condition and cash flows.

In addition, the TCJA also includes a variety of other changes, such as a limitation on the tax deductibility of interest expense
and acceleration of business asset expensing, among others. Several provisions of the TCJA are not generally applicable to the
public utility industry, including the limitation on the tax deductibility of interest expense and the acceleration of business asset
expensing. We continue to assess the impact that the TCJA may have on our future results of operations, financial condition and
cash flows, which impact may adversely affect our future results of operations, financial condition and cash flows.

CERC and Enable may incur significant costs and liabilities resulting from pipeline integrity and other similar programs

and related repairs.

Certain of CERC’s and Enable’s pipeline operations are subject to pipeline safety laws and regulations. The DOT’s PHMSA
has adopted regulations requiring pipeline operators to develop integrity management programs, including more frequent
inspections and other measures, for transportation pipelines located in “high consequence areas,” which are those areas where a
leak or rupture could do the most harm. The regulations require pipeline operators, including CERC and Enable, to, among other
things:

•

perform ongoing assessments of pipeline integrity;

develop a baseline plan to prioritize the assessment of a covered pipeline segment;

identify and characterize applicable threats that could impact a high consequence area;

improve data collection, integration, and analysis;

develop processes for performance management, record keeping, management of change and communication;

repair and remediate pipelines as necessary; and

implement preventive and mitigating action.

Failure to comply with PHMSA or comparable state pipeline safety regulations could result in a number of consequences that
may have an adverse effect on CERC’s and Enable’s operations. Both CERC and Enable incur significant costs associated with
their compliance with existing PHMSA and comparable state regulations, which may not be recoverable in rates.

Changes to pipeline safety laws and regulations that result in more stringent or costly safety standards could have a significant
adverse effect on CERC and Enable. For example, in January 2017, PHMSA announced the issuance of the Pipeline Safety: Safety
of Hazardous Liquids Pipelines final rule. The final rule extends regulatory reporting requirements to additional liquid gathering
lines, requires additional event-driven and periodic inspections, requires use of leak detection systems on additional hazardous
liquid pipelines, modifies repair criteria, and requires certain pipelines to eventually accommodate inline inspection tools. It is
unclear when or if this rule will go into effect as, on January 20, 2017, the Trump Administration requested that all regulations
that had been sent to the Office of the Federal Register, but not yet published, be immediately withdrawn for further review, which
is currently in progress. These proposals, if finalized, would impose additional costs on CERC and Enable.

In March 2016, PHMSA issued a notice of proposed rulemaking detailing proposed revisions to the safety standards applicable
to natural gas transmission and gathering pipelines. The proposed rules include significant modifications which, if adopted, will
result in significant operational and integrity management changes. These include requiring reconfirmation of the Maximum
Allowable Operating Pressures in pipelines without reliable records, creating new material verification procedures, adding a new
38

moderate consequence area, and tightening repair criteria for pipelines in both high and moderate consequence areas. Other
modifications include adding record-keeping and data collection obligations, and new requirements for monitoring gas quality
and managing corrosion. The proposed rules also would expand the scope of gas gathering lines subject to PHMSA regulation,
including imposing minimum safety standards on certain larger, currently exempt, gathering lines, while subjecting all gathering-
line operators to recordkeeping and annual reporting requirements from which they are currently exempt. Other proposed changes,
such as the modification to the definition of a transmission line, some record-keeping requirements, and some material verification
obligations also may impact distribution pipelines although PHMSA states that such far-reaching applicability is not its intent.
This rule is also currently under evaluation, and PHMSA is expected to issue a final rule in the third quarter of 2018 at the earliest.
Because the impact of these proposed rules remains uncertain, we are still monitoring and evaluating the effect of these proposed
requirements on operations.

On December 14, 2016, PHMSA announced an interim final rule to impose industry-developed recommendations as
enforceable safety standards for downhole (underground) equipment, including wells, wellbore tubing, and casing, at both interstate
and intrastate underground natural gas storage facilities. States may also impose more stringent standards on intrastate storage
facilities. Both CERC and Enable own and operate underground storage facilities that will be subject to this rule’s provisions,
which include procedures and practices for operations, maintenance, threat identification, monitoring, assessment, site security,
emergency response and preparedness, training and recordkeeping. Although not yet finalized, the interim rule went into effect
on January 18, 2017, with a compliance deadline of January 18, 2018. PHMSA determined, however, that it will not issue
enforcement citations to any operators for violations of those provisions of the interim final rule 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, which has not yet been issued. This matter remains ongoing and subject to future PHMSA determinations. CERC and
Enable will continue to monitor developments and assess the potential impact of any modifications to this rule.

Proposed rulemakings such as those discussed above could expand the scope of natural gas and hazardous liquids integrity
management programs and other pipeline safety regulations to include additional requirements or previously exempt pipelines.
CERC and Enable have not estimated the cost of complying with any proposed changes to the regulations administered by PHMSA
or state pipeline safety regulators.

Aging infrastructure may lead to increased costs and disruptions in operations that could negatively impact our financial

results.

We have risks associated with aging infrastructure assets. The age of certain of our assets may result in a need for
replacement, or higher level of maintenance costs as a result of our risk based federal and state compliant integrity management
programs. Failure to achieve timely recovery of these expenses could adversely impact revenues and could result in increased
capital expenditures or expenses.

The operation of our facilities depends on good labor relations with our employees.

Several of our businesses have entered into and have in place collective bargaining agreements with different labor unions.
There are seven separate bargaining units in CenterPoint Energy, each with a unique collective bargaining agreement. In 2017,
CERC entered into renegotiated collective bargaining agreements with United Steelworkers Local 227 and United Steelworkers
Local 13-1, which are scheduled to expire in June and July of 2022, respectively. The collective bargaining agreements with Gas
Workers Union Local 340, IBEW Local 66 and Local 949 are each scheduled to expire in 2020, and the collective bargaining
agreements with Professional Employees International Union Local 12 are scheduled to expire in 2021. Any failure to reach an
agreement on new labor contracts or to negotiate these labor contracts might result in strikes, boycotts or other labor disruptions.
These potential labor disruptions could have a material adverse effect on our businesses, results of operations and/or cash flows.
Labor disruptions, strikes or significant negotiated wage and benefit increases, whether due to union activities, employee turnover
or otherwise, could have a material adverse effect on our businesses, results of operations and/or cash flows.

Our businesses will continue to have to adapt to technological change and may not be successful or may have to incur

significant expenditures to adapt to technological change.

We operate in businesses that require sophisticated data collection, processing systems, software and other technology. Some
of the technologies supporting the industries we serve are changing rapidly and increasing in complexity. New technologies will
emerge or grow that may be superior to, or may not be compatible with, some of our existing technologies, and may require us to
make significant expenditures so that we can continue to provide cost-effective and reliable methods of energy delivery. Among
such technological advances are distributed generation resources (e.g., private solar), energy storage devices and more energy-
efficient buildings and products designed to reduce consumption. As these technologies become a more cost-competitive option

over time, whether through cost effectiveness or government incentives and subsidies, certain customers may choose to meet their
own energy needs and subsequently decrease usage of our systems and services.

Our future success will depend, in part, on our ability to anticipate and adapt to these technological changes in a cost-effective
manner and to offer, on a timely basis, reliable services that meet customer demands and evolving industry standards. If we fail
to adapt successfully to any technological change or obsolescence, fail to obtain access to important technologies or incur significant
expenditures in adapting to technological change, or if implemented technology does not operate as anticipated, our businesses,
operating results, financial condition and cash flows could be materially and adversely affected.

Our or Enable’s potential business strategies and strategic initiatives, including merger and acquisition activities and the

disposition of assets or businesses, may not be completed or perform as expected.

From time to time, we and Enable have made and may continue to make acquisitions or divestitures of businesses and assets,
form joint ventures or undertake restructurings. However, suitable acquisition candidates or potential buyers may not continue
to be available on terms and conditions we or Enable, as the case may be, find acceptable, or the expected benefits of completed
acquisitions may not be realized fully or at all, or may not be realized in the anticipated timeframe. If we or Enable are unable to
make acquisitions or if those acquisitions do not perform as anticipated, our and Enable’s future growth may be adversely affected.

Any completed or future acquisitions involve substantial risks, including the following:

•

acquired businesses or assets may not produce revenues, earnings or cash flow at anticipated levels;

acquired businesses or assets could have environmental, permitting or other problems for which contractual protections
prove inadequate;

• we or Enable may assume liabilities that were not disclosed to us, that exceed our estimates, or for which our rights to

indemnification from the seller are limited;

• we or Enable may be unable to integrate acquired businesses successfully and realize anticipated economic, operational
and other benefits in a timely manner, which could result in substantial costs and delays or other operational, technical
or financial problems; and

•

acquisitions, or the pursuit of acquisitions, could disrupt ongoing businesses, distract management, divert resources and
make it difficult to maintain current business standards, controls and procedures.

In February 2016, we announced that we were evaluating strategic alternatives for our investment in Enable, including a sale
or spin-off qualifying under Section 355 of the U.S. Internal Revenue Code. We have determined that we will no longer pursue a
spin option at this time. More recently, we announced that late-stage discussions with a third party regarding a transaction involving
our investment in Enable had terminated because an agreement on mutually acceptable terms could not be reached. We may reduce
our ownership in Enable over time through sales in the public equity markets, or otherwise, of the common units we hold, subject
to market conditions. Although a transaction for all our interests in Enable is not viable at this time, we may pursue such a transaction
if it is viable in the future. Our ability to execute any sale of common units is subject to a number of uncertainties, including the
timing, pricing and terms of any such sale. Any sales of our common units could have an adverse impact on the price of Enable
common units or on any trading market for Enable common units. Further, our sales of Enable common units may have an adverse
impact on Enable’s ability to issue equity on satisfactory terms, or at all, which may limit its ability to expand operations or make
future acquisitions. Any reduction in our interest in Enable would result in decreased distributions from Enable, which may reduce
our operating income and adversely impact our ability to meet our payment obligations and pay dividends on our common stock.
For a further discussion, please read “— Risk Factors Affecting Our Interests in Enable Midstream Partners, LP — Enable’s ability
to grow is dependent on its ability to access external financing sources.”

There can be no assurances that we will engage in any specific action or that any sale transaction or any sale of common units
in the public equity markets or otherwise will be completed, and we do not intend to disclose further developments unless and
until our board of directors approves a specific action or as otherwise required by applicable law or NYSE regulations. Any sale
transaction or sale of common units in the public equity markets or otherwise may involve significant costs and expenses, including,
in connection with any public offering, a significant underwriting discount. We may not realize any or all of the anticipated
strategic, financial, operational or other benefits from any completed sale or reduction in our investment in Enable.

We are involved in numerous legal proceedings, the outcome of which are uncertain, and resolutions adverse to us could

negatively affect our financial results.

We are subject to numerous legal proceedings, the most significant of which are summarized in Note 15 of our consolidated
financial statements. Litigation is subject to many uncertainties, and we cannot predict the outcome of all matters with assurance.
Final resolution of these matters may require additional expenditures over an extended period of time that may be in excess of
established insurance or reserves and may have a material adverse effect on our financial results.

We are exposed to risks related to reduction in energy consumption due to factors including unfavorable economic conditions

in our service territories, energy efficiency initiatives and use of alternative technologies.

Our businesses are affected by reduction in energy consumption due to factors including economic climate in our service
territories, energy efficiency initiatives and use of alternative technologies, which could impact our ability to grow our customer
base and our rate of growth. Declines in demand for electricity as a result of economic downturns in our regulated electric service
territory will reduce overall sales and lessen cash flows, especially as industrial customers reduce production and, therefore,
consumption of electricity. Although Houston Electric is subject to regulated allowable rates of return and recovery of certain
costs under periodic adjustment clauses, overall declines in electricity sold as a result of economic downturn or recession could
reduce revenues and cash flows, thereby diminishing results of operations. Additionally, prolonged economic downturns that
negatively impact our results of operations and cash flows could result in future material impairment charges to write-down the
carrying value of certain assets, including goodwill, to their respective fair values.

For example, our electric business is largely concentrated in Houston, Texas, where a higher percentage of employment is
tied to the energy sector relative to other regions of the country. During 2015 and 2016, the rate of growth in employment in
Houston declined in connection with the significant decline in energy and commodity prices over that period. Relatively low
commodity prices compared to pre-2015 levels continued in 2017, and we expect such relatively low prices to continue or slightly
improve in 2018. In the event economic conditions further decline, the rate of growth in Houston and the other areas in which we
operate may also deteriorate. Increases in customer defaults or delays in payment due to liquidity constraints could negatively
impact our cash flows and financial condition.

Growth in customer accounts and growth of customer usage each directly influence demand for electricity and the need for
additional delivery facilities. Customer growth and customer usage are affected by a number of factors outside our control, such
as mandated energy efficiency measures, demand-side management goals, distributed generation resources and economic and
demographic conditions, such as population changes, job and income growth, housing starts, new business formation and the
overall level of economic activity.

Certain regulatory and legislative bodies have introduced or are considering requirements and/or incentives to reduce energy
consumption by certain dates. Additionally, technological advances driven by federal laws mandating new levels of energy
efficiency in end-use electric devices or other improvements in or applications of technology could lead to declines in per capita
energy consumption.

Some or all of these factors, could result in a lack of growth or decline in customer demand for electricity or number of
customers, and may result in our failure to fully realize anticipated benefits from significant capital investments and expenditures
which could have a material adverse effect on their financial position, results of operations and cash flows.

Furthermore, we currently have energy efficiency riders in place to recover the cost of energy efficiency programs. Should
we be required to invest in conservation measures that result in reduced sales from effective conservation, regulatory lag in adjusting
rates for the impact of these measures could have a negative financial impact.

If we fail to maintain an effective system of internal controls, our ability to accurately report our financial condition, results
of operations or cash flows or prevent fraud may be adversely affected. As a result, investors could lose confidence in our
financial reporting, which could impact our businesses and the trading price of our securities.

Effective internal controls are necessary for us to provide reliable financial reports, effectively prevent fraud and operate
successfully as a public company. If our efforts to maintain an effective system of internal controls are not successful, we are
unable to maintain adequate controls over our financial reporting and processes in the future or we are unable to comply with our
obligations under Section 404 of the Sarbanes-Oxley Act of 2002, our operating results could be harmed or we may fail to meet
our reporting obligations. Ineffective internal controls also could cause investors to lose confidence in our reported financial
information, which would likely have a negative effect on the trading price of our securities.

Our businesses may be adversely affected by the intentional misconduct of our employees.

We are committed to living our core values of safety, integrity, accountability, initiative and respect and complying with all
applicable laws and regulations. Despite that commitment and our efforts to prevent misconduct, it is possible for employees to
engage in intentional misconduct, fail to uphold our core values, and violate laws and regulations for individual gain through
contract or procurement fraud, misappropriation, bribery or corruption, fraudulent related-party transactions and serious breaches
of our Ethics and Compliance Code and Standards of Conduct/Business Ethics policy, among other policies. If such intentional
misconduct by employees should occur, it could result in substantial liability, higher costs, increased regulatory scrutiny and
negative public perceptions, any of which could have a material adverse effect on our results of operations, financial condition
and cash flows.

Item 1B.

Unresolved Staff Comments

None.

Item 2.

Properties

Character of Ownership

We lease or own our principal properties in fee, including our corporate office space and various real property. Most of our
electric lines and natural gas mains are located, pursuant to easements and other rights, on public roads or on land owned by others.

Electric Transmission & Distribution

For information regarding the properties of our Electric Transmission & Distribution business segment, please read
“Business — Our Business — Electric Transmission & Distribution — Properties” in Item 1 of this report, which information is
incorporated herein by reference.

Natural Gas Distribution

For information regarding the properties of our Natural Gas Distribution business segment, please read “Business — Our
Business — Natural Gas Distribution — Assets” in Item 1 of this report, which information is incorporated herein by reference.

Energy Services

For information regarding the properties of our Energy Services business segment, please read “Business — Our Business —

Energy Services — Assets” in Item 1 of this report, which information is incorporated herein by reference.

Midstream Investments

For information regarding the properties of our Midstream Investments business segment, please read “Business — Our

Business — Midstream Investments” in Item 1 of this report, which information is incorporated herein by reference.

Other Operations

For information regarding the properties of our Other Operations business segment, please read “Business — Our Business —

Other Operations” in Item 1 of this report, which information is incorporated herein by reference.

Item 3.

Legal Proceedings

For a discussion of material legal and regulatory proceedings affecting us, please read “Business — Regulation” and
“Business — Environmental Matters” in Item 1 of this report, “Management’s Discussion and Analysis of Financial Condition
and Results of Operations — Liquidity and Capital Resources — Regulatory Matters” in Item 7 of this report and Note 15(d) to
our consolidated financial statements, which information is incorporated herein by reference.

Item 4.

Mine Safety Disclosures

Not applicable.

PART II

Item 5.

Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities

As of February 9, 2018, our common stock was held by approximately 30,493 shareholders of record. Our common stock is

listed on the NYSE and Chicago Stock Exchange and is traded under the symbol “CNP.”

The following table sets forth the high and low closing prices of the common stock of CenterPoint Energy on the NYSE

composite tape during the periods indicated, as reported by Bloomberg, and the cash dividends declared in these periods.

Market Price

High

Low

Dividend
Declared

Per Share

2017
First Quarter ....................................................................................................
January 3 ..................................................................................................
March 15 .................................................................................................. $

Second Quarter................................................................................................
May 17 .....................................................................................................
June 1 ....................................................................................................... $

Third Quarter...................................................................................................
July 11 ......................................................................................................
September 11............................................................................................ $

Fourth Quarter (1) ............................................................................................

November 30............................................................................................ $
December 21 ............................................................................................

2016
First Quarter ....................................................................................................
January 20 ................................................................................................
March 29 .................................................................................................. $

Second Quarter................................................................................................
April 5 ......................................................................................................
June 29 ..................................................................................................... $

Third Quarter...................................................................................................

July 22...................................................................................................... $
August 16 .................................................................................................
Fourth Quarter.................................................................................................
October 11................................................................................................
December 22 ............................................................................................ $

28.09

28.93

30.45

30.01

21.25

24.00

24.69

24.84

24.59

27.17

27.16

27.77

16.90

20.51

22.13

21.84

0.2675

0.5450

0.2575

(1) On October 25, 2017, our Board of Directors declared a regular quarterly cash dividend of $0.2675 per share of common
stock payable on December 8, 2017, to shareholders of record as of the close of business on November 16, 2017. On
December 13, 2017, our Board of Directors declared a regular quarterly cash dividend of $0.2775 per share, payable on
March 8, 2018 to shareholders of record at the close of business on February 15, 2018.

The closing market price of our common stock on December 31, 2017 was $28.36 per share.

The amount of future cash dividends will be subject to determination based upon our results of operations and financial
condition, our future business prospects, any applicable contractual restrictions and other factors that our Board of Directors
considers relevant and will be declared at the discretion of the Board of Directors.

Repurchases of Equity Securities

During the quarter ended December 31, 2017, none of our equity securities registered pursuant to Section 12 of the Securities
Exchange Act of 1934 were purchased by or on behalf of us or any of our “affiliated purchasers,” as defined in Rule 10b-18(a)(3)
under the Securities Exchange Act of 1934.

Item 6. Selected Financial Data

The following table presents selected financial data with respect to our consolidated financial condition and consolidated
results of operations and should be read in conjunction with our consolidated financial statements and the related notes in Item 8
of this report.

2017

2016

2015

2014

2013

Year Ended December 31,

Revenues ............................................................................. $
Equity in earnings (losses) of unconsolidated affiliates ....................
Net income (loss) ...................................................................
Basic earnings (loss) per common share .......................................
Diluted earnings (loss) per common share ....................................

9,614

265

1,792

(1)

4.16

4.13

(in millions, except per share amounts)

7,528

$ 7,386

9,226

8,106

208

432

1.00

(1,663)

(2)

(692)

(1.61)

308

611

1.42

188

311

0.73

0.72

1.07

1.03

0.99

0.95

0.83

Cash dividends paid per common share ........................................ $
Dividend payout ratio ..............................................................
Return on average common equity ..............................................
Ratio of earnings to fixed charges ...............................................
At year-end:

Book value per common share ................................................ $
Market price per common share ...............................................
Market price as a percent of book value .....................................
Percentage of common units owned representing limited partner

interests in Enable ............................................................

26%

44%

3.70

10.88

28.36

261%

54.1%

Total assets (4) ..................................................................... $ 22,736
Short-term borrowings ..........................................................
39
Securitization Bonds, including current maturities (3) ....................
Other long-term debt, including current maturities (3) ....................
Capitalization:

1,868

6,933

Common stock equity ......................................................
Long-term debt, including current maturities ..........................
Capitalization, excluding Securitization Bonds: ...........................
Common stock equity ......................................................
Long-term debt, excluding Securitization Bonds, and including
current maturities ........................................................

35%

65%

40%

60%

103%

12%

2.74

n/a

(17)%

2.67

67%

14%

2.79

114%

2.42

8.04

24.64

8.05

18.36

10.58

23.43

10.09

23.18

306%

228 %

54.1%

55.4 %

221%

55.4%

230%

58.3%

$ 21,829

$ 21,290

$ 23,150

$ 21,816

2,278

6,279

2,667

6,063

29%

71%

36%

64%

28 %

72 %

36 %

64 %

3,037

5,717

34%

66%

44%

56%

3,388

4,873

34%

66%

47%

53%

Capital expenditures ............................................................. $

1,494

1,406

$ 1,575

1,402

1,272

(1) Net income for the year ended December 31, 2017 includes a reduction in income taxes of $1,113 million due to tax
reform. See Note 14 to our consolidated financial statements for further discussion of the impacts of tax reform
implementation.

(2) This amount includes $1,846 million of non-cash impairment charges related to Enable.

(3) Amounts for 2013 to 2015 have been restated to reflect adoption of ASU 2015-03.

Item 7.

Management’s Discussion and Analysis of Financial Condition and Results of Operations

The following discussion and analysis should be read in combination with our consolidated financial statements included in

Item 8 herein.

Background

OVERVIEW

• Houston Electric, which engages in the electric transmission and distribution business in the Texas Gulf Coast area that

includes the city of Houston;

• CERC Corp., which owns and operates natural gas distribution systems in six states; and

• CES, which obtains and offers competitive variable and fixed-price physical natural gas supplies and services primarily

to commercial and industrial customers and electric and natural gas utilities in 33 states.

As of December 31, 2017, we also owned an aggregate of 14,520,000 Series A Preferred Units in Enable, which owns, operates
and develops natural gas and crude oil infrastructure assets, and CERC Corp. owned approximately 54.1% of the common units
representing limited partner interests in Enable.

Business Segments

In this Management’s Discussion and Analysis, we discuss our results from continuing operations on a consolidated basis and
individually for each of our business segments. We also discuss our liquidity, capital resources and critical accounting policies.
We are first and foremost an energy delivery company and it is our intention to remain focused on these segments of the energy
business. The results of our business operations are significantly impacted by weather, customer growth, economic conditions,
cost management, competition, rate proceedings before regulatory agencies and other actions of the various regulatory agencies
to whose jurisdiction we are subject. Our electric transmission and distribution services are subject to rate regulation and are
reported in the Electric Transmission & Distribution business segment, as are impacts of generation-related stranded costs and
other true-up balances recoverable by the regulated electric utility. For further information about our Electric Transmission &
Distribution business segment, see “Business — Our Business — Electric Transmission & Distribution” in Item 1 of Part I of this
report. Our natural gas distribution services are also subject to rate regulation and are reported in the Natural Gas Distribution
business segment. For further information about our Natural Gas Distribution business segment, see “Business — Our Business
— Natural Gas Distribution” in Item 1 of Part I of this report. Our Energy Services business segment includes non-rate regulated
natural gas sales to, and transportation and storage services, for commercial and industrial customers. For further information
about our Energy Services business segment, see “Business — Our Business — Energy Services” in Item 1 of Part I of this report.
The results of our Midstream Investments business segment are dependent upon the results of Enable, which are driven primarily
by the volume of natural gas, NGLs and crude oil that Enable gathers, processes and transports across its systems and other factors
as discussed below under “— Factors Influencing Our Midstream Investments Segment.” Our Other Operations business segment
includes office buildings and other real estate used in our business operations and other corporate operations which support all of
our business operations.

Factors Influencing Our Businesses and Industry Trends

EXECUTIVE SUMMARY

We expect our and Enable’s businesses to continue to be affected by the key factors and trends discussed 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.

We are an energy delivery company. The majority of our revenues are generated from the sale of natural gas and the transmission
and delivery of electricity by our subsidiaries. We do not own or operate electric generating facilities or make retail sales to end-
use electric customers. To assess our financial performance, our management primarily monitors operating income and cash flows
from our business segments. Within these broader financial measures, we monitor margins, operation and maintenance expense,
45

interest expense, capital spending and working capital requirements. In addition to these financial measures, we also monitor a
number of variables that management considers important to the operation of our business segments, including the number of
customers, throughput, use per customer, commodity prices and heating and cooling degree days. We also monitor system reliability,
safety factors and customer satisfaction to gauge our performance.

To the extent adverse economic conditions affect our suppliers and customers, results from our energy delivery businesses
may suffer. For example, our electric business is largely concentrated in Houston, Texas, where a higher percentage of employment
is tied to the energy sector relative to other regions of the country. Although Houston, Texas has a diverse economy, employment
in the energy industry remains important. During 2015 and 2016, the rate of growth in employment in Houston declined in
connection with the significant decline in energy and commodity prices over that period. Relatively low commodity prices compared
to pre-2015 levels continued in 2017, and we expect such relatively low prices to continue or slightly improve in 2018.

Also, adverse economic conditions, coupled with concerns for protecting the environment and increased availability of alternate
energy sources, may cause consumers to use less energy or avoid expansions of their facilities, resulting in less demand for our
services. To the extent population growth is affected by lower energy prices and there is financial pressure on some of our customers
who operate within the energy industry, there may be an impact on the growth rate of our customer base and overall demand. Due
to a slowdown in multi-family residential construction, meter growth in 2017 has declined. We saw year-over-year residential
meter growth decline from 2.3% in 2016 to 1.6% in 2017. As the recent stability in the energy sector gains momentum in 2018,
we anticipate this growth will continue at roughly 2%, in line with long-term trends.

Performance of our Electric Transmission & Distribution and Natural Gas Distribution business segments is significantly
influenced by the number of customers and energy usage per customer. Weather conditions can have a significant impact on energy
usage, and we compare our results on a weather-adjusted basis.

Overall, in 2017 the Houston area experienced a number of record-breaking high and low temperatures, primarily in January-
April and in October-November, resulting in a year that was warmer by a tenth of a degree than the previous warmest year, 2012.
In terms of heating degree days, Texas recorded its warmest year and for most other jurisdictions the second warmest year since
1970. In 2017, our Houston service area experienced above normal warmth with record rainfall during Hurricane Harvey. In 2016,
our Houston service area experienced above normal warmth with episodes of flooding. In 2015, our Houston service area
experienced some of the mildest temperatures on record during November and December. Every state in which we distribute
natural gas had a warmer than normal winter in 2017, 2016 and 2015.

Historically, both the TDU and NGD have utilized weather hedges to help reduce the impact of mild weather on their financial
results. The TDU entered into a weather hedge for the 2015-2016, 2016-2017 and 2017-2018 winter heating seasons. However,
although NGD did not enter into a weather hedge for the winter of 2015-2016 or 2016-2017, it has entered into a hedge for the
2017-2018 winter season in Texas where no weather normalization mechanisms exist. In our non-Texas jurisdictions, weather
normalization mechanisms or decoupling in the Minnesota division help to mitigate the impact of abnormal weather on our financial
results. Long-term national trends indicate customers have reduced their energy consumption, which could adversely affect our
results. However, due to more affordable energy prices and continued economic improvement in the areas we serve, the trend
toward lower usage has slowed.

In Minnesota and Arkansas, there are rate adjustment mechanisms to counter the impact of declining usage from energy
efficiency improvements. In addition, in many of our service areas, particularly in the Houston area and Minnesota, we have
benefited from growth in the number of customers, which could mitigate the effects of reduced consumption. We anticipate that
this trend will continue as the regions’ economies continue to grow. The profitability of our businesses is influenced significantly
by the regulatory treatment we receive from the various state and local regulators who set our electric and gas distribution rates.

Our Energy Services business segment contracts with customers for transportation, storage and sales of natural gas on an
unregulated basis. Its operations serve customers throughout the United States. The segment benefits from favorable price
differentials, either on a geographic or seasonal basis. While this business utilizes financial derivatives to mitigate the effects of
price movements, it does not enter into risk management contracts for speculative purposes and monitors VaR daily to avoid
significant financial exposures to realized income. At the end of 2017, a weather-driven spike in natural gas prices caused the
accrual of unusually high unrealized mark-to-market income, expected to be substantially reversed in the first quarter of 2018 as
natural gas prices normalize.

In January 2017, CES acquired AEM, which included approximately 1,000 customers and 362 Bcf of natural gas sales. The
customer base included more industrial customers, which was complementary to our existing commercial-heavy customer base.
This acquisition helped drive the overall operating income increase for Energy Services in 2017 as compared to 2016. For more
information regarding this acquisition, see Note 4 to our consolidated financial statements.

The nature of our businesses requires significant amounts of capital investment, and we rely on internally generated cash,
borrowings under our credit facilities, proceeds from commercial paper and issuances of debt and equity in the capital markets to
satisfy these capital needs. We strive to maintain investment grade ratings for our securities to access the capital markets on terms
we consider reasonable. A reduction in our ratings generally would increase our borrowing costs for new issuances of debt, as
well as borrowing costs under our existing revolving credit facilities, and may prevent us from accessing the commercial paper
markets. Disruptions in the financial markets can also affect the availability of new capital on terms we consider attractive. In
those circumstances, companies like us may not be able to obtain certain types of external financing or may be required to accept
terms less favorable than they would otherwise accept. For that reason, we seek to maintain adequate liquidity for our businesses
through existing credit facilities and prudent refinancing of existing debt.

The regulation of natural gas pipelines and related facilities by federal and state regulatory agencies affects our business. In
accordance with natural gas pipeline safety and integrity regulations, we are making, and will continue to make, significant capital
investments in our service territories, which are necessary to help operate and maintain a safe, reliable and growing natural gas
system. Our compliance expenses may also increase as a result of preventative measures required under these regulations.
Consequently, new rates in the areas we serve are necessary to recover these increasing costs.

We expect to contribute a minimum of approximately $67 million to our pension plans in 2018. Consistent with the regulatory
treatment of such costs, we defer the amount of pension expense that differs from the level of pension expense included in our
base rates for our Electric Transmission & Distribution business segment and Natural Gas Distribution business segment in Texas.

Factors Influencing Our Midstream Investments Segment

The results of our Midstream Investments segment are dependent upon the results of Enable, which are driven primarily by
the volume of natural gas, NGLs and crude oil that Enable gathers, processes and transports across its systems. These volumes
depend significantly on the level of production from natural gas wells connected to Enable’s systems across a number of U.S. mid-
continent markets. Aggregate production volumes are affected by the overall amount of oil and gas drilling and completion activities.
Production must be maintained or increased by new drilling or other activity, because the production rate of oil and gas wells
declines over time.

Enable expects its business to continue to be impacted by the trends affecting the midstream industry, discussed below. Enable’s
outlook is based on its management’s assumptions regarding the impact of these trends that it has developed by interpreting the
information currently available to them. If Enable management’s assumptions or interpretation of available information prove to
be incorrect, Enable’s future financial condition and results of operations may differ materially from its expectations.

Enable’s business is impacted by commodity prices, which have declined and otherwise experienced significant volatility in
recent years. Commodity prices impact the drilling and production of natural gas and crude oil in the areas served by Enable’s
systems, and the volumes on Enable’s systems are negatively impacted if producers decrease drilling and production in those areas
served. Both Enable’s gathering and processing segment and its transportation and storage segment can be impacted by drilling
and production. Enable’s gathering and processing segment primarily serves producers, and many producers utilize the services
provided by its transportation and storage segment. A decrease in volumes will decrease cash flows from Enable’s systems. In
addition, Enable’s processing arrangements expose it to commodity price fluctuations. Enable has attempted to mitigate the impact
of commodity prices on its business by entering into hedges, focusing on contracting fee-based business and converting existing
commodity-based contracts to fee-based contracts.

Enable’s long-term view is that natural gas and crude oil production in the U.S. will increase. Over the past several years,
there has been a fundamental shift in U.S. natural gas and crude oil production towards tight gas formations and shale plays.
Advancements in technology have allowed producers to efficiently extract natural gas and crude oil from these formations and
plays. As a result, the proven reserves of natural gas and crude oil in the U.S. have significantly increased.

Natural gas continues to be a critical component of energy demand in the U.S. Over the long term, Enable’s management
believes that the prospects for continued natural gas demand are favorable and will be driven by population and economic growth,
as well as the continued displacement of coal-fired power plants by natural gas-fired power plants due to the price of natural gas
and stricter government environmental regulations on the mining and burning of coal. Enable’s management believes that increasing
consumption of natural gas over the long term in these sectors will continue to drive demand for Enable’s natural gas gathering,
processing, transportation and storage services.

Enable may access the capital markets to fund its expansion capital expenditures. Historically, unit prices of midstream master
limited partnerships have experienced periods of volatility. In addition, because Enable’s common units are yield-based securities,

rising market interest rates could impact the relative attractiveness of Enable’s common units to investors. Further, fluctuations in
energy and commodity prices can create volatility in Enable’s common unit prices, which could impact investor appetite for its
common units. Volatility in energy and commodity prices, as well as other macro-economic factors could impact the relative
attractiveness of Enable’s debt securities to investors. As a result of capital market volatility, Enable may be unable to issue equity
securities or debt on satisfactory terms, or at all, which may limit its ability to expand its operations or make future acquisitions.

The regulation of gathering and transmission pipelines, storage and related facilities by FERC and other federal and state
regulatory agencies, including the DOT, has a significant impact on Enable’s business. For example, the DOT’s PHMSA has
established pipeline integrity management programs that require more frequent inspections of pipeline facilities and other
preventative measures, which may increase Enable’s compliance costs and increase the time it takes to obtain required permits.
Additionally, increased regulation of oil and natural gas producers, including regulation associated with hydraulic fracturing, could
reduce regional supply of oil and natural gas and therefore throughput on Enable’s gathering systems.

Enable relies on certain key natural gas producer customers for a significant portion of its natural gas and NGLs supply. For
the year ended December 31, 2017, Enable’s top ten natural gas producer customers accounted for approximately 70% of its
gathered volumes. These customers include affiliates of Continental, Vine, GeoSouthern, XTO Energy, Tapstone Energy, Apache,
BP Energy Company, Chesapeake, Covey Park and Four Point Energy. Further, Enable relies on certain key utilities and producers
for a significant portion of its transportation and storage demand. For the year ended December 31, 2017, Enable’s top transportation
and storage customers by revenue were our affiliates and affiliates of Spire, American Electric Power Company, OGE, Continental,
XTO Energy, Chesapeake, Midcontinent Express Pipeline, Entergy and Shell.

Enable is exposed to certain credit risks relating to its ongoing business operations. Credit risk includes the risk that
counterparties that owe Enable money or commodities will breach their obligations. If the counterparties to these arrangements
fail to perform, Enable may be forced to enter into alternative arrangements. In that event, Enable’s financial results could be
adversely affected, and Enable could incur losses. Enable examines the creditworthiness of third-party customers to whom it
extends credit and manages its exposure to credit risk through credit analysis, credit approval, credit limits and monitoring
procedures, and for certain transactions, Enable may request letters of credit, prepayments or guarantees or seek to renegotiate its
contract to reduce credit exposure.

Significant Events

Tax Reform. On December 22, 2017, President Trump signed into law comprehensive tax reform legislation informally called
The Tax Cuts and Jobs Acts, or TCJA, which resulted in significant changes to federal tax laws effective January 1, 2018. For the
impacts of the tax reform legislation, see Note 14 to our consolidated financial statements.

Hurricane Harvey. Houston Electric’s electric delivery system and CERC Corp.’s NGD suffered damage as a result of
Hurricane Harvey, which struck the Texas coast on Friday, August 25, 2017. For further information regarding the impact of
Hurricane Harvey, see Note 6 to our consolidated financial statements.

Brazos Valley Connection Project. Houston Electric began construction on the Brazos Valley Connection in February 2017.

For further details, see “—Liquidity and Capital Resources —Regulatory Matters —Brazos Valley Connection Project” below.

Bailey-Jones Creek Project. In April 2017, Houston Electric submitted a proposal to ERCOT for an approximately $250
million transmission project in the greater Freeport, Texas area. For further details, see “—Liquidity and Capital Resources —
Regulatory Matters — Bailey-Jones Creek Project” below.

Regulatory Proceedings. For details related to our pending and completed regulatory proceedings during 2017, see “—

Liquidity and Capital Resources —Regulatory Matters” below.

Debt Transactions. In 2017, we and CERC Corp. retired or redeemed a combined $800 million aggregate principal amount
of senior notes. Additionally, we issued $500 million aggregate principal amount of unsecured senior notes, CERC Corp. issued
$300 million aggregate principal amount of unsecured senior notes and Houston Electric issued $300 million aggregate principal
amount of general mortgage bonds. For further information about our 2017 debt transactions, see Note 13 to our consolidated
financial statements.

Credit Facilities. In June 2017, CenterPoint Energy, Houston Electric and CERC Corp. each entered into amendments to their
respective revolving credit facilities to (a) extend the termination date and terminate the swingline loan subfacility under each
facility, and (b) for the CenterPoint Energy and CERC Corp. facilities, increase the aggregate commitments under such facilities.
For further information about our 2017 credit facility amendments, see Note 13 to our consolidated financial statements.

AEM Acquisition. In January 2017, CES acquired AEM. For more information regarding this acquisition, see Note 4 to our

consolidated financial statements.

CERTAIN FACTORS AFFECTING FUTURE EARNINGS

Our past earnings and results of operations are not necessarily indicative of our future earnings and results of operations. The
magnitude of our and Enable’s future earnings and results of our and Enable’s operations will depend on or be affected by numerous
factors including:

•

the performance of Enable, the amount of cash distributions we receive from Enable, Enable’s ability to redeem the Series
A Preferred Units in certain circumstances and the value of our interest in Enable, and factors that may have a material
impact on such performance, cash distributions and value, including factors such as:

competitive conditions in the midstream industry, and actions taken by Enable’s customers and competitors, including
the extent and timing of the entry of additional competition in the markets served by Enable;

the timing and extent of changes in the supply of natural gas and associated commodity prices, particularly prices
of natural gas and NGLs, the competitive effects of the available pipeline capacity in the regions served by Enable,
and the effects of geographic and seasonal commodity price differentials, including the effects of these circumstances
on re-contracting available capacity on Enable’s interstate pipelines;

the demand for crude oil, natural gas, NGLs and transportation and storage services;

environmental and other governmental regulations, including the availability of drilling permits and the regulation
of hydraulic fracturing;

recording of non-cash goodwill, long-lived asset or other than temporary impairment charges by or related to Enable;

changes in tax status;

access to debt and equity capital; and

the availability and prices of raw materials and services for current and future construction projects;

industrial, commercial and residential growth in our service territories and changes in market demand, including the
effects of energy efficiency measures and demographic patterns;

timely and appropriate rate actions that allow recovery of costs and a reasonable return on investment;

future economic conditions in regional and national markets and their effect on sales, prices and costs;

•

• weather variations and other natural phenomena, including the impact of severe weather events on operations and capital;

•

state and federal legislative and regulatory actions or developments affecting various aspects of our businesses (including
the businesses of Enable), including, among others, energy deregulation or re-regulation, pipeline integrity and safety
and changes in regulation and legislation pertaining to trade, health care, finance and actions regarding the rates charged
by our regulated businesses;

tax reform and legislation, including the effects of the TCJA and uncertainties involving state commissions’ and local
municipalities’ regulatory requirements and determinations regarding the treatment of EDIT and our rates;

our ability to mitigate weather impacts through normalization or rate mechanisms, and the effectiveness of such
mechanisms;

the timing and extent of changes in commodity prices, particularly natural gas, and the effects of geographic and seasonal
commodity price differentials;

problems with regulatory approval, construction, implementation of necessary technology or other issues with respect
to major capital projects that result in delays or in cost overruns that cannot be recouped in rates;

local, state and federal legislative and regulatory actions or developments relating to the environment, including those
related to global climate change;

the impact of unplanned facility outages;

any direct or indirect effects on our or Enable’s facilities, operations and financial condition resulting from terrorism,
cyber-attacks, data security breaches or other attempts to disrupt our businesses or the businesses of third parties, or other

catastrophic events such as fires, earthquakes, explosions, leaks, floods, droughts, hurricanes, pandemic health events or
other occurrences;

our ability to invest planned capital and the timely recovery of our investment in capital;

our ability to control operation and maintenance costs;

actions by credit rating agencies;

the sufficiency of our insurance coverage, including availability, cost, coverage and terms;

the investment performance of our pension and postretirement benefit plans;

commercial bank and financial market conditions, our access to capital, the cost of such capital, and the results of our
financing and refinancing efforts, including availability of funds in the debt capital markets;

changes in interest rates and their impact on our costs of borrowing and the valuation of our pension benefit obligation;

changes in rates of inflation;

inability of various counterparties to meet their obligations to us;

non-payment for our services due to financial distress of our customers;

the extent and effectiveness of our risk management and hedging activities, including, but not limited to our financial
and weather hedges;

timely and appropriate regulatory actions allowing securitization for any future hurricanes or natural disasters or other
recovery of costs, including costs associated with Hurricane Harvey;

our or Enable’s potential business strategies and strategic initiatives, including restructurings, joint ventures and
acquisitions or dispositions of assets or businesses (including a reduction of our interests in Enable, if any; whether
through our decision to sell all or a portion of the Enable common units we own in the public equity markets or otherwise,
subject to certain limitations), which we cannot assure you will be completed or will have the anticipated benefits to us
or Enable;

acquisition and merger activities involving us or our competitors;

our or Enable’s ability to recruit, effectively transition and retain management and key employees and maintain good
labor relations;

the ability of GenOn (formerly known as RRI Energy, Inc., Reliant Energy and RRI), a wholly-owned subsidiary of NRG,
and its subsidiaries, currently the subject of bankruptcy proceedings, to satisfy their obligations to us, including indemnity
obligations;

the outcome of litigation;

the ability of REPs, including REP affiliates of NRG and Vistra Energy Corp., formerly known as TCEH Corp., to satisfy
their obligations to us and our subsidiaries;

changes in technology, particularly with respect to efficient battery storage or the emergence or growth of new, developing
or alternative sources of generation;

the timing and outcome of any audits, disputes and other proceedings related to taxes;

the effective tax rates;

the effect of changes in and application of accounting standards and pronouncements; and

other factors we discuss under “Risk Factors” in Item 1A of this report and in other reports we file from time to time with
the SEC.

•

CONSOLIDATED RESULTS OF OPERATIONS

Revenues ......................................................................................................... $
Expenses..........................................................................................................
Operating Income............................................................................................
Gain (Loss) on Marketable Securities.............................................................
Gain (Loss) on Indexed Debt Securities .........................................................
Interest and Other Finance Charges ................................................................
Interest on Securitization Bonds .....................................................................
Equity in Earnings (Losses) of Unconsolidated Affiliates..............................
Other Income, net............................................................................................
Income (Loss) Before Income Taxes ..............................................................
Income Tax Expense (Benefit)........................................................................
Net Income (Loss)........................................................................................... $

Basic Earnings (Loss) Per Share ..................................................................... $

Diluted Earnings (Loss) Per Share.................................................................. $

2017 Compared to 2016

Year Ended December 31,

2017

2016

2015

(in millions, except per share amounts)

9,614

7,528

8,542

1,072

49
(313)
(77)
265

1,063
(729)
1,792

4.16

4.13

6,569

959

326
(413)
(338)
(91)
208

686

254

432

1.00

7,386

6,453

933
(93)
74
(352)
(105)
(1,633)
46
(1,130)
(438)
(692)

(1.61)

Net Income. We reported net income of $1,792 million ($4.13 per diluted share) for 2017 compared to net income of $432

million ($1.00 per diluted share) for 2016.

The increase in net income of $1,360 million was primarily due to the following key factors:

• a $983 million decrease in income tax expense, resulting from a reduction in income tax expense of $1,113 million due
to tax reform, discussed further in Note 14 to our consolidated financial statements, offset by a $130 million increase in
income tax expense primarily due to higher net income year over year;

• a $462 million increase in gains on indexed debt securities related to the ZENS, resulting from increased gains of $345
million in the underlying value of the indexed debt securities and a loss of $117 million from the Charter merger in 2016;

• a $113 million increase in operating income discussed below by segment;

• a $57 million increase in equity earnings from our investment in Enable, discussed further in Note 10 to our consolidated

financial statements;

• a $25 million decrease in interest expense due to lower weighted average interest rates on outstanding debt;

• a $17 million decrease in losses on early debt redemption;

• a $14 million increase in cash distributions on Series A Preferred Units included in Other Income, net shown above; and

• a $14 million decrease in interest expense related to lower outstanding balances of our Securitization Bonds.

These increases were partially offset by:

• a $319 million decrease in gains on marketable securities; and

• a $6 million decrease in miscellaneous other non-operating income included in Other Income, net shown above.

Income Tax Expense. We reported an effective tax rate of (69%) and 37% for the years ended December 31, 2017 and 2016,
respectively. The effective tax rate of (69%) is primarily due to the remeasurement of our ADFIT liability as a result of the
enactment of the TCJA on December 22, 2017, which reduced the U.S. corporate income tax rate from 35% to 21%. See Note 14
to our consolidated financial statements for a more in depth discussion of the 2017 impacts of the TCJA.

2016 Compared to 2015

Net Income. We reported net income of $432 million ($1.00 per diluted share) for 2016 compared to a net loss of $692 million

($(1.61) per diluted share) for the same period in 2015.

The increase in net income of $1,124 million was due to the following key factors:

• a $1,841 million increase in equity earnings from our investment in Enable, as 2015 results included impairment charges

of $1,846 million, discussed further in Note 10 to our consolidated financial statements;

• a $419 million increase in the gain on our marketable securities;

• a $26 million increase in operating income discussed below by segment;

• a $22 million increase in cash distributions on Series A Preferred Units included in Other Income, net shown above;

• a $14 million decrease in interest expense due to lower weighted average interest rates on outstanding debt; and

• a $14 million decrease in interest expense related to lower outstanding balances of our Securitization Bonds.

These increases were partially offset by:

• a $692 million increase in income tax expense due to higher income before tax;

• a $487 million increase in the loss on indexed debt securities related to the ZENS resulting from a loss of $117 million
from the Charter merger in 2016 compared to a loss of $7 million from Verizon’s acquisition of AOL in 2015 and increased
losses of $377 million in the underlying value of the indexed debt securities;

• a $22 million loss on early redemption of our $300 million 6.5% senior notes otherwise due 2018 included in Other

Income, net shown above;

• a $6 million decrease in interest income due primarily to Enable’s repayment of $363 million note payable to us included

in Other Income, net shown above; and

• a $5 million decrease in miscellaneous other non-operating income include in Other Income, net shown above.

Income Tax Expense. We reported an effective tax rate of 37% and 39% for the years ended December 31, 2016 and 2015,
respectively. The effective tax rate of 39% is primarily due to lower earnings from the impairment of our investment in Enable.
The impairment loss reduced the deferred tax liability on our investment in Enable.

RESULTS OF OPERATIONS BY BUSINESS SEGMENT

The following table presents operating income for each of our business segments for 2017, 2016 and 2015. Included in revenues

are intersegment sales. We account for intersegment sales as if the sales were to third parties at current market prices.

Operating Income by Business Segment

Year Ended December 31,

2017

2016

(in millions)

2015

Electric Transmission & Distribution ............................................................. $
Natural Gas Distribution .................................................................................
Energy Services...............................................................................................
Other Operations .............................................................................................

610

328

125

628

303

Total Consolidated Operating Income .......................................................... $

1,072

959

607

273

933

Electric Transmission & Distribution

The following tables provide summary data of our Electric Transmission & Distribution business segment for 2017, 2016 and

2015:

Revenues:

TDU .............................................................................................................. $
Bond Companies...........................................................................................
Total revenues........................................................................................

Expenses:

Operation and maintenance, excluding Bond Companies............................
Depreciation and amortization, excluding Bond Companies .......................
Taxes other than income taxes......................................................................
Bond Companies...........................................................................................
Total expenses .......................................................................................

Operating Income............................................................................................ $
Operating Income:

TDU .............................................................................................................. $
Bond Companies (1) ......................................................................................

Total segment operating income............................................................ $

Throughput (in GWh):

Year Ended December 31,

2017

2016

2015

(in millions, except throughput and customer data)

2,588

2,507

409

2,997

1,423

395

235

334

2,387

610

535

610

553

3,060

1,355

384

231

462

2,432

628

537

628

2,364

481

2,845

1,300

340

222

376

2,238

607

502

105

607

Residential .............................................................................................
Total.......................................................................................................

29,703

88,636

29,586

86,829

28,995

84,191

Number of metered customers at end of period:

Residential .............................................................................................
Total .......................................................................................................

2,164,073

2,444,299

2,129,773

2,403,340

2,079,899

2,348,517

(1) Represents the amount necessary to pay interest on the Securitization Bonds.

2017 Compared to 2016. Our Electric Transmission & Distribution business segment reported operating income of $610
million for 2017, consisting of $535 million from the TDU and $75 million related to the Bond Companies. For 2016, operating
income totaled $628 million, consisting of $537 million from the TDU and $91 million related to the Bond Companies.

TDU operating income decreased $2 million primarily due to the following key factors:

• lower equity return of $22 million, primarily related to the annual true-up of transition charges correcting for over-

collections that occurred during the preceding 12 months;

• higher depreciation, primarily because of ongoing additions to plant in service, and other taxes of $20 million;

• higher operation and maintenance expenses of $19 million, primarily due to higher labor and benefits costs of $10

million and corporate support services expenses of $8 million;

• lower usage of $15 million; and

• lower miscellaneous revenues, including right-of-way, of $10 million.

These decreases to operating income were partially offset by the following:

• rate increases of $47 million related to distribution capital investments;

• customer growth of $32 million from the addition of almost 41,000 customers; and

• higher transmission-related revenues of $61 million, partially offset by transmission costs billed by transmission

providers of $56 million.

2016 Compared to 2015. Our Electric Transmission & Distribution business segment reported operating income of $628
million for 2016, consisting of $537 million from the TDU and $91 million related to the Bond Companies. For 2015, operating
income totaled $607 million, consisting of $502 million from the TDU and $105 million related to the Bond Companies.

TDU operating income increased $35 million due to the following key factors:

• customer growth of $31 million from the addition of over 54,000 customers;

• higher transmission-related revenues of $82 million, partially offset by transmission costs billed by transmission

providers of $55 million;

• higher equity return of $17 million, primarily due to the annual true-up of transition charges correcting for under-

collections that occurred during the preceding 12 months; and

• rate increases of $13 million related to distribution capital investments.

These increases to operating income were partially offset by the following:

• higher depreciation, primarily because of ongoing additions to plant in service, and other taxes of $45 million;

• higher operation and maintenance expenses of $3 million; and

• lower right-of-way revenues of $3 million.

Natural Gas Distribution

The following table provides summary data of our Natural Gas Distribution business segment for 2017, 2016 and 2015:

Year Ended December 31,

2017

2016

2015

(in millions, except throughput and customer data)

2,639

2,409

2,632

Revenues ......................................................................................................... $
Expenses:

Natural gas ....................................................................................................
Operation and maintenance ..........................................................................
Depreciation and amortization......................................................................
Taxes other than income taxes......................................................................
Total expenses...................................................................................

1,164

742

260

145

2,311

1,008

714

242

142

2,106

Operating Income............................................................................................ $
Throughput (in Bcf):

328

303

Residential ....................................................................................................
Commercial and industrial............................................................................
Total Throughput ..............................................................................

151

261

412

152

259

411

Number of customers at end of period:

1,297

697

222

143

2,359

273

171

262

433

Residential ....................................................................................................
Commercial and industrial............................................................................
Total ..................................................................................................

3,213,140

256,651

3,469,791

3,183,538

255,806

3,439,344

3,149,845

253,921

3,403,766

2017 Compared to 2016. Our Natural Gas Distribution business segment reported operating income of $328 million for 2017

compared to $303 million for 2016.

Operating income increased $25 million primarily as a result of the following key factors:

• rate increases of $38 million, primarily from Texas rate filings of $14 million, Arkansas rate case and formula rate plan

filings of $9 million, Minnesota interim rates of $7 million and Mississippi RRA of $4 million;

• higher other revenues of $8 million, primarily driven by transportation revenues;

• customer growth of $7 million from the addition of over 30,000 new customers;

• labor and benefits were favorable by $5 million, resulting primarily from the recording of a regulatory asset (and a

corresponding reduction in expense) to recover $16 million of prior postretirement expenses in future rates established
in the Texas Gulf rate order; and

• an increase of $7 million from weather normalization adjustments, partially offset by $4 million of milder weather

effects.

These increases were partially offset by:

• higher operation and maintenance expenses of $20 million, primarily due to increased bad debt expenses of $7

million, increased contract services of $7 million, increased insurance costs of $3 million and increased corporate
support services expenses of $2 million; and

• increased depreciation and amortization expense, primarily due to ongoing additions to plant-in-service, and other

taxes of $16 million.

Increased operation and maintenance expense related to energy efficiency programs of $13 million and decreased other taxes

expense related to gross receipt taxes of $5 million were offset by a corresponding increase or decrease in the related revenues.

2016 Compared to 2015. Our Natural Gas Distribution business segment reported operating income of $303 million for 2016

compared to $273 million for 2015.

Operating income increased $30 million primarily as a result of the following key factors:

• rate increases of $55 million, primarily from the 2015 Minnesota rate case, including the decoupling rider, and the

Texas GRIP filing;

• lower bad debt expense of $12 million resulting from lower customer bills due to warmer than normal weather as well

as credit and collections process improvements that have reduced write-offs;

• an increase of $26 million from weather normalization adjustments, including weather-related decoupling and hedging

activities, partially offset by $19 million of milder weather effects; and

• customer growth of $5 million from the addition of over 35,000 new customers.

These increases were partially offset by:

• increased depreciation and amortization of $20 million, primarily due to ongoing additions to plant in service;

• higher labor and benefits expenses of $11 million, primarily driven by increased pension costs;

• higher contract services expenses of $10 million, primarily for increased pipeline integrity, leak surveying and repair

activities; and

• increased operation and maintenance expenses of $8 million related to higher support services costs and other

miscellaneous expenses.

Increased operation and maintenance expense related to energy efficiency programs of $1 million and decreased other taxes

expense related to gross receipt taxes of $3 million were offset by a corresponding increase or decrease in the related revenues.

Energy Services

The following table provides summary data of our Energy Services business segment for 2017, 2016 and 2015:

Year Ended December 31,

2017

2016

2015

(in millions, except throughput and customer data)

4,049

2,099

1,957

3,816
87
19
2
3,924
125

2,011
59
7
2
2,079
20

(21) $

1,867
42
5
1
1,915
42

618

Revenues ......................................................................................................... $
Expenses:

Natural gas ....................................................................................................
Operation and maintenance ..........................................................................
Depreciation and amortization......................................................................
Taxes other than income taxes ......................................................................
Total expenses..........................................................................................
Operating Income............................................................................................ $

Timing impacts related to mark-to-market gain (loss) (1) ............................... $

Throughput (in Bcf) ........................................................................................

1,200

777

Number of customers at end of period (2) .......................................................

31,000

30,000

18,000

(1) Includes the change in unrealized mark-to-market value and the impact from derivative assets and liabilities acquired

through the purchase of Continuum and AEM.

(2) These numbers do not include approximately 72,000 and 60,100 natural gas customers as of December 31, 2017 and
2016, respectively, that are under residential and small customer choice programs invoiced by their host utility.

2017 Compared to 2016. Our Energy Services business segment reported operating income of $125 million for 2017 compared
to $20 million for 2016. The increase in operating income of $105 million was primarily due to a $100 million increase from
mark-to-market accounting for derivatives associated with certain natural gas purchases and sales used to lock in economic margins.
A weather-driven spike in natural gas prices at the end of 2017 caused the accrual of an unusually high mark-to-market asset,
expected to be substantially reversed in the first quarter of 2018 as natural gas prices normalize. Operating income in 2017 also
included approximately $5 million of expenses related to the acquisition and integration of AEM. The remaining increase in
operating income was primarily due to increased throughput related to the acquisition of AEM in 2017.

2016 Compared to 2015. Our Energy Services business segment reported operating income of $20 million for 2016 compared
to $42 million for 2015. The decrease in operating income of $22 million was due to a $25 million decrease from mark-to-market
accounting for derivatives associated with certain natural gas purchases and sales used to lock in economic margins. Partially
offsetting this decrease was an increase in operating income for 2016 as compared to 2015 attributable to increased throughput
and number of customers due to the Continuum acquisition. Operating income in 2016 also included $3 million of operation and
maintenance expenses and $3 million of amortization expenses specifically related to the acquisition and integration of Continuum.

Midstream Investments

The following table summarizes the equity earnings (losses) of our Midstream Investments business segment for 2017, 2016

and 2015:

Year Ended December 31,

2017

2016

2015 (1)

(in millions)

Enable.............................................................................................................. $

265

208

(1,633)

(1) These amounts include impairment charges totaling $1,846 million composed of the impairment of our investment in
Enable of $1,225 million and our share, $621 million, of impairment charges Enable recorded for goodwill and long-
lived assets for the year ended December 31, 2015. This impairment is offset by $213 million of earnings for the year
ended December 31, 2015.

Other Operations

The following table provides summary data for our Other Operations business segment for 2017, 2016 and 2015:

Year Ended December 31,

2017

2016

(in millions)

2015

14
5
9

15
7
8

14
3
11

2017 Compared to 2016. Our Other Operations business segment reported operating income of $9 million for 2017 compared
to $8 million for 2016. The increase in operating income of $1 million is primarily related to decreased depreciation and
amortization, partially offset by increased operating expenses.

2016 Compared to 2015. Our Other Operations business segment reported operating income of $8 million for 2016 compared
to $11 million for 2015. The decrease in operating income of $3 million is primarily related to increased depreciation and
amortization.

Historical Cash Flows

LIQUIDITY AND CAPITAL RESOURCES

The net cash provided by (used in) operating, investing and financing activities for 2017, 2016 and 2015 is as follows:

Year Ended December 31,

2017

2016

(in millions)

2015

Cash provided by (used in):

Operating activities.................................................................................. $
Investing activities...................................................................................
Financing activities..................................................................................

1,421
(1,257)
(245)

1,931
(1,046)
(808)

1,870
(1,387)
(517)

Cash Provided by Operating Activities

Net cash provided by operating activities decreased $510 million in 2017 compared to 2016 primarily due to decreased cash
from working capital ($549 million) and other non-current items ($6 million), partially offset by higher net income after adjusting
for non-cash and non-operating items ($45 million). The changes in working capital items in 2017 primarily related to decreased
cash provided by margin deposits, net; non-trading derivatives, net; taxes receivable; net accounts receivable/payable; net regulatory
assets and liabilities; inventory; and fuel cost under recovery; partially offset by net current assets and liabilities; and other assets
and liabilities.

Net cash provided by operating activities increased $61 million in 2016 compared to 2015 primarily due to higher net income
after adjusting for non-cash and non-operating items ($40 million) and increased cash from other non-current items ($32 million),
partially offset by changes in working capital ($11 million). The changes in working capital items in 2016 primarily related to
decreased cash provided by net regulatory assets and liabilities; fuel cost under recovery; and net accounts receivable/payable;
partially offset by increased cash provided by taxes receivable; margin deposits, net; non-trading derivatives, net; and net current
assets and liabilities.

Cash Used in Investing Activities

Net cash used in investing activities increased $211 million in 2017 compared to 2016 primarily due to decreased cash received
for the repayment of notes receivable from Enable ($363 million), decreased proceeds from the sale of marketable securities
associated with the Charter merger ($178 million), increased cash used for acquisitions ($30 million) and increased capital
expenditures ($12 million), which were partially offset by decreased cash used for the purchase of Series A Preferred Units ($363
million) and increased restricted cash ($10 million). In 2017, we acquired AEM for $132 million in cash and, in 2016, we acquired
Continuum for $102 million in cash.

Net cash used in investing activities decreased $341 million in 2016 compared to 2015 primarily due to increased cash received
for the repayment of notes receivable from Enable ($363 million), increased return of capital from Enable ($149 million), proceeds
from the sale of marketable securities associated with the Charter merger ($146 million) and decreased capital expenditures ($170
million), which were partially offset by cash used for the purchase of Series A Preferred Units ($363 million), cash used for the
Continuum acquisition ($102 million) and increased restricted cash ($17 million).

Cash Used in Financing Activities

Net cash used in financing activities decreased $563 million in 2017 compared to 2016 primarily due to increased proceeds
from issuances of long-term debt ($496 million), decreased distributions to ZENS holders ($178 million), decreased losses on
reacquired debt ($17 million), increased short-term borrowings ($9 million) and decreased payments of long-term debt ($7 million),
partially offset by decreased proceeds from commercial paper ($120 million), increased payments of common stock dividends
($18 million) and increased debt issuance costs ($4 million).

Net cash used in financing activities increased $291 million in 2016 compared to 2015 primarily due to increased payments
of long-term debt ($574 million), increased distributions to ZENS holders ($146 million), loss on reacquired debt ($22 million),
increased payments of common stock dividends ($17 million) and debt issuance costs ($9 million), which were partially offset by
increased proceeds from long-term debt ($400 million), increased proceeds from commercial paper ($66 million) and increased
short-term borrowings ($8 million).

Future Sources and Uses of Cash

Our liquidity and capital requirements are affected primarily by our results of operations, capital expenditures, debt service
requirements, tax payments, working capital needs and various regulatory actions. Our principal anticipated cash requirements
for 2018 include the following:

•

capital expenditures of approximately $1.7 billion;

scheduled principal payments on Securitization Bonds of $434 million;

contributions of a minimum of $60 million to our qualified pension plan;

• maturing collateralized pollution control bonds of $50 million; and

•

dividend payments on our common stock and interest payments on debt.

We expect that anticipated 2018 cash needs will be met with borrowings under our credit facilities, proceeds from commercial
paper, proceeds from the issuance of long-term debt, anticipated cash flows from operations and distributions from Enable. In
addition, should we choose to sell Enable common units in 2018 (reducing the amount of future distributions we receive from
Enable), any net proceeds we receive from such sale could provide a source for our 2018 cash needs. Discretionary financing or
refinancing may result in the issuance of equity or debt securities in the capital markets or the arrangement of additional credit
facilities. Issuances of equity or debt in the capital markets, funds raised in the commercial paper markets, additional credit facilities
and any sales of our Enable common units may not, however, be available to us on acceptable terms.

The following table sets forth our actual capital expenditures for 2017 and estimates of our capital expenditures for currently

planned projects for 2018 through 2022:

2017

2018

2019

2020

2021

2022

(in millions)

Electric Transmission & Distribution ......... $
Natural Gas Distribution .............................
Energy Services...........................................
Other Operations .........................................

924

523

949

635

958

612

1,004

637

959

664

900

687

Total

.......................................................... $

1,494

1,664

1,623

1,689

1,670

1,634

Our capital expenditures are expected to be used for investment in infrastructure for our electric transmission and distribution
operations and our natural gas distribution operations. These capital expenditures are anticipated to maintain reliability and safety,
increase resiliency and expand our systems through value-added projects.

The following table sets forth estimates of our contractual obligations, including payments due by period:

Contractual Obligations

Total

2018

2019-2020

2021-2022

Securitization Bonds .......................................................
Other long-term debt (1) ..................................................
Interest payments — Securitization Bonds (2) ................
Interest payments — other long-term debt (2) .................
Short-term borrowings ....................................................
Operating leases (3) .........................................................
Benefit obligations (4) .....................................................
Non-trading derivative liabilities ....................................
Commodity and other commitments (5) ..........................
Total contractual cash obligations (6) ............................

1,868

434

689

430

(in millions)

7,316

191

3,756

—

1,286

277

—

500

—

548

—

550

3,549

459

—

128

2023 and
thereafter

315

3,717

2,472

—

108

14,506

1,390

1,876

4,611

6,629

(1) ZENS obligations are included in the 2023 and thereafter column at their contingent principal amount as of December 31,
2017 of $505 million. These obligations are exchangeable for cash at any time at the option of the holders for 95% of
the current value of the reference shares attributable to each ZENS ($960 million as of December 31, 2017), as discussed
in Note 11 to our consolidated financial statements.

(2) We calculated estimated interest payments for long-term debt as follows: for fixed-rate debt and term debt, we calculated
interest based on the applicable rates and payment dates; for variable-rate debt and/or non-term debt, we used interest
rates in place as of December 31, 2017. We typically expect to settle such interest payments with cash flows from operations
and short-term borrowings.

(3) For a discussion of operating leases, please read Note 15(c) to our consolidated financial statements.

(4) In 2018, we expect to contribute a minimum of approximately $60 million to our qualified pension plan. We expect to
contribute approximately $7 million and $16 million, respectively, to our non-qualified pension and postretirement benefits
plans in 2018.

(5) For a discussion of commodity and other commitments, please read Note 15(a) to our consolidated financial statements.

(6) This table does not include estimated future payments for expected future AROs. These payments are primarily estimated
to be incurred after 2022. We record a separate liability for the fair value of AROs, which totaled $281 million as of
December 31, 2017. See Note 3(c) to our consolidated financial statements.

Off-Balance Sheet Arrangements

Other than operating leases, we have no off-balance sheet arrangements.

Regulatory Matters

Brazos Valley Connection Project

Construction began on the Brazos Valley Connection in February 2017, and Houston Electric expects to complete construction
in the first quarter of 2018 and energize the Brazos Valley Connection in the early second quarter of 2018, ahead of the original
June 1, 2018 energization date. Houston Electric anticipates that the final capital costs of the project will be approximately $285
million, which is within the estimated range of approximately $270-$310 million in the PUCT’s original order.

Bailey-Jones Creek Project

In April 2017, Houston Electric submitted a proposal to ERCOT requesting its endorsement of Houston Electric’s
approximately $250 million transmission project in the greater Freeport, Texas area, which includes enhancements to two existing
substations and the construction of a new 345 kV double-circuit transmission line. On December 12, 2017, Houston Electric
received approval from ERCOT, and anticipates that the PUCT will provide a decision in 2019 regarding the design and route of
the project.

Rate Change Applications

Houston Electric and CERC are routinely involved in rate change applications before state regulatory authorities. Those
applications include general rate cases, where the entire cost of service of the utility is assessed and reset. In addition, Houston
Electric is periodically involved in proceedings to adjust its capital tracking mechanisms (TCOS and DCRF) and annually files to
adjust its EECRF. CERC is periodically involved in proceedings to adjust its capital tracking mechanisms in Texas (GRIP), its
cost of service adjustments in Arkansas, Louisiana, Mississippi and Oklahoma (FRP, RSP, RRA and PBRC), its decoupling
mechanism in Minnesota, and its energy efficiency cost trackers in Arkansas, Minnesota, Mississippi and Oklahoma (EECR, CIP,
EECR and EECR). The table below reflects significant applications pending or completed during 2017 and to date in 2018.

Mechanism

Annual
Increase
(1)
(in millions)

Filing
Date

Effective
Date

Approval
Date

Additional Information

Houston Electric (PUCT)

AMS

N/A

EECRF (2)

$11.0

June
2017

September
2017

December
2017

Final reconciliation of AMS surcharge for a $29.2 million refund of AMS
revenue in excess of expenses, for which a reserve has been recorded.
Refunds began in September 2017 and will continue through August 2018.

March
2018

November
2017

Annual reconciliation filing for program year 2016 and includes performance
bonus of $11 million.

DCRF

TCOS

41.8

7.8

39.3

April
2017

September
2017

July
2017

December
2016

February
2017

September
2017

November
2017

TCOS

N/A

February
2018

TBD

Based on an increase in eligible distribution-invested capital for 2016 of $479
million. Unanimous Stipulation and Settlement Agreement was filed in June
2017 for $86.8 million (a $41.8 million annual increase). The settlement
agreement also included the AMS refund referenced above.

Based on an incremental increase in total rate base of $109.6 million.

Based on an incremental increase in total rate base of $263.4 million.

Revise TCOS application approved in November 2017 by a reduction of
$41.6 million to recognize change in tax rates, amortize certain EDIT
balances and adjust rate base by EDIT attributable to new plant since the last
rate case, all of which are related to the TCJA.

South Texas and Beaumont/East Texas (Railroad Commission)

GRIP

Rate Case
(South Texas only)

7.6

0.5

March
2017

November
2017

July
2017

TBD

June
2017

TBD

Based on net change in invested capital of $46.5 million.

Reflects a proposed 10.3% ROE on a 55% equity ratio for South Texas
jurisdiction.

Rate Case

16.5

November
2016

May
2017

The Railroad Commission approved a unanimous settlement agreement
establishing parameters for future GRIP filings, including a 9.6% ROE on a
55.15% equity ratio.

Houston and Texas Coast (Railroad Commission)

Rate Case

EECR (2)

FRP

BDA

Texarkana, Texas Service Area (Multiple City Jurisdictions)

July
2017

September
2017

August
2017

Approved rates are consistent with Arkansas rates approved in 2016.

1.1

0.5

7.6

3.9

May
2017

April
2017

March
2017

16.5

December
2017

February
2018

Arkansas (APSC)

January
2018

September
2017

Recovers $11.0 million, including an incentive of $0.5 million based on 2016
program performance.

October
2017

September
2017

Based on ROE of 9.5% as approved in the last rate case. Unanimous
Settlement Agreement was filed in July 2017 for $7.6 million and was
subsequently approved.

June
2017

January
2018

For the evaluation period between January 2016 and August 2016. Amounts
are recorded during the evaluation period.

For the evaluation period between October 2016 and September 2017.
Amounts are recorded during the evaluation period.

Minnesota (MPUC)

Rate Case

CIP (2)

56.5

13.8

August
2017

May
2017

TBD

August
2017

TBD

August
2017

Decoupling

20.4

September
2017

February
2018

Reflects a proposed 10.0% ROE on a 52.18% equity ratio. Includes a
proposal to extend decoupling beyond current expiration date of June 2018.
Interim rates reflecting an annual increase of $47.8 million were effective
October 1, 2017.

Annual reconciliation filing for program year 2016 and includes performance
bonus of $13.8 million.

Reflects revenue under recovery for the period July 1, 2016 through June 30,
2017 and $3.0 million related to the under recovery of prior period
adjustment factor. $9.2 million and $11.2 million was recognized in 2016 and
2017, respectively.

RRA

RSP

EECR (2)

PBRC

2.3

1.0

3.0

0.4

2.2

Mississippi (MPSC)

May
2017

July
2017

Authorized ROE of 9.59% and a capital structure of 50% debt and 50%
equity.

Louisiana (LPSC)

September
2016

September
2017

December
2016

December
2017

April
2017

Authorized ROE of 9.95% and a capital structure of 48% debt and 52%
equity.

January
2018

Authorized ROE of 9.95% and a capital structure of 48% debt and 52%
equity.

Oklahoma (OCC)

March
2017

November
2017

October
2017

Recovers $2.6 million, including an incentive of $0.4 million based on 2016
program performance.

Based on ROE of 10%.

(1) Represents proposed increases when effective date and/or approval date is not yet determined. Approved rates could

differ materially from proposed rates.

(2) Amounts are recorded when approved.

Tax Reform

For Houston Electric and CERC’s NGD, federal income tax expense is included in the rates approved by state commissions
and local municipalities and charged by those utilities to consumers. When Houston Electric and NGD have general rate cases
and other periodic rate adjustments, we expect the lower corporate tax expense resulting from the TCJA (which includes determining
the treatment of EDIT), along with other increases and decreases in our revenue requirements, to be incorporated into Houston
Electric’s and NGD’s future rates. Nevertheless, regulators may require us to respond to the TCJA in other ways, including through
faster recoveries of reductions in federal income tax expense, accounting orders to reflect a liability to return to customers in future
rate proceedings, accelerated returns to consumers of previously collected deferred federal income taxes, increased funding of
infrastructure upgrades, or offsets of future rate increases. The effect on us of any potential return of tax savings resulting from
the TCJA to consumers may differ depending on how each regulatory body requires us to return such savings.

On January 25, 2018, the PUCT issued an accounting order in Project No. 47945 directing electric utilities, including Houston
Electric, to record as a regulatory liability (1) the difference between revenues collected under existing rates and revenues that
would have been collected had the existing rates been set using the recently approved federal income tax rates and (2) the balance
of EDIT that now exists because of the reduction in federal income tax rates. On February 13, 2018, Houston Electric and other
likely parties to a future rate case announced a settlement that requires Houston Electric to make (i) a TCOS filing by February
20, 2018 to reflect the change in the federal income tax rate for Houston Electric’s transmission rate base through July 31, 2017
and account for certain EDIT (and such filing was timely submitted), (ii) a DCRF filing in April 2018 to reflect the change in the
federal income tax rate for Houston Electric’s distribution rate base through December 31, 2017 and (iii) a full rate case filing by
April 30, 2019. The settlement was presented to the PUCT during its open meeting on February 15, 2018. In response to the
settlement, the PUCT did not proceed with a prior proposal to require Houston Electric to file a rate case in the summer of 2018.
The PUCT also amended its prior accounting order to remove the requirement that utilities include carrying costs in the new
regulatory liability.

PHMSA Matters

On December 19, 2016, PHMSA published in the Federal Register an interim final rule to impose industry-developed
recommendations as enforceable safety standards for downhole (underground) equipment, including wells, wellbore tubing, and
casing, at both interstate and intrastate underground natural gas storage facilities. Both CERC and Enable own and operate
underground storage facilities that are subject to this rule’s provisions, which include procedures and practices for operations,
maintenance, threat identification, monitoring, assessment, site security, emergency response and preparedness, training and
recordkeeping. Although not yet finalized, the interim rule went into effect on January 18, 2017, with an announced compliance
deadline of January 18, 2018. PHMSA determined, however, that it will not issue enforcement citations to any operators for
violations of provisions of the interim final rule 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, which has not yet been issued. This matter
remains ongoing and subject to future PHMSA determinations. CERC and Enable will continue to monitor developments and
assess the potential impact of any modifications to this rule.

Other Matters

Credit Facilities

Our revolving credit facilities may be drawn on by the companies from time to time to provide funds used for general corporate
purposes, including to backstop the companies’ commercial paper programs. The facilities may also be utilized to obtain letters
of credit. For further details related to our revolving credit facilities and the 2017 amendments, please see Note 13 to our consolidated
financial statements.

As of February 9, 2018, we had the following facilities:

Company

CenterPoint Energy ....................................
Houston Electric .........................................
CERC Corp. ...............................................

Size of
Facility

(in millions)

1,700

300

900

Amount
Utilized as of
February 9, 2018 (1)

Termination Date

877 (2)
4 (3)
899 (4)

March 3, 2022

(1) Based on the consolidated debt to capitalization covenant in our revolving credit facility and the revolving credit facility
of each of Houston Electric and CERC Corp., we would have been permitted to utilize the full capacity of such revolving
credit facilities, which aggregated $2.9 billion as of December 31, 2017.

(2) Represents outstanding commercial paper of $871 million and outstanding letters of credit of $6 million.

(3) Represents outstanding letters of credit.

(4) Represents outstanding commercial paper of $898 million and outstanding letters of credit of $1 million.

Borrowings under each of the three revolving credit facilities are subject to customary terms and conditions. However, there
is no requirement that the borrower make representations prior to borrowings as to the absence of material adverse changes or
litigation that could be expected to have a material adverse effect. Borrowings under each of the revolving credit facilities are
subject to acceleration upon the occurrence of events of default that we consider customary. The revolving credit facilities also
provide for customary fees, including commitment fees, administrative agent fees, fees in respect of letters of credit and other
fees. In each of the three revolving credit facilities, the spread to LIBOR and the commitment fees fluctuate based on the borrower’s
credit rating. The borrowers are currently in compliance with the various business and financial covenants in the three revolving
credit facilities.

Long-term Debt

In 2017, we and CERC Corp. retired or redeemed a combined $800 million aggregate principal amount of unsecured senior
notes. Additionally, we issued $500 million aggregate principal amount of unsecured senior notes, CERC Corp. issued $300
million aggregate principal amount of unsecured senior notes and Houston Electric issued $300 million aggregate principal amount
of general mortgage bonds. For further information about our 2017 debt transactions, see Note 13 to our consolidated financial
statements.

Securities Registered with the SEC

On January 31, 2017, CenterPoint Energy, Houston Electric and CERC Corp. filed a joint shelf registration statement with
the SEC registering indeterminate principal amounts of Houston Electric’s general mortgage bonds, CERC Corp.’s senior debt
securities and CenterPoint Energy’s senior debt securities and junior subordinated debt securities and an indeterminate number of
CenterPoint Energy’s shares of common stock, shares of preferred stock, as well as stock purchase contracts and equity units. The
joint shelf registration statement will expire on January 31, 2020.

Temporary Investments

As of February 9, 2018, we had no temporary investments.

Money Pool

We have a money pool through which the holding company and participating subsidiaries can borrow or invest on a short-
term basis. Funding needs are aggregated and external borrowing or investing is based on the net cash position. The net funding
requirements of the money pool are expected to be met with borrowings under our revolving credit facility or the sale of our
commercial paper.

Impact on Liquidity of a Downgrade in Credit Ratings

The interest on borrowings under our credit facilities is based on our credit rating. On December 4, 2017, S&P revised its
rating outlooks on senior debt of CenterPoint Energy, Houston Electric and CERC Corp. to stable from positive and affirmed its
ratings. On September 24, 2017, Fitch upgraded Houston Electric’s senior secured debt rating to A+ and maintained its rating
outlook of stable. In addition, Fitch revised its rating outlooks on senior debt of CenterPoint Energy and CERC Corp. to positive
from stable and affirmed its ratings.

As of February 9, 2018, Moody’s, S&P and Fitch had assigned the following credit ratings to senior debt of CenterPoint

Energy and certain subsidiaries:

Company/Instrument

Rating

Outlook (1)

Rating

Outlook (2)

Rating

Outlook (3)

CenterPoint Energy Senior Unsecured Debt............
Houston Electric Senior Secured Debt ....................
CERC Corp. Senior Unsecured Debt.......................

Baa1

Baa2

Stable

BBB+

A-

Stable

BBB

A+

BBB

Positive

Stable

Positive

Moody’s

S&P

Fitch

(1) A Moody’s rating outlook is an opinion regarding the likely direction of an issuer’s rating over the medium term.

(2) An S&P rating outlook assesses the potential direction of a long-term credit rating over the intermediate to longer term.

(3) A Fitch rating outlook indicates the direction a rating is likely to move over a one- to two-year period.

We cannot assure that the ratings set forth above will remain in effect for any given period of time or that one or more of these
ratings will not be lowered or withdrawn entirely by a rating agency. We note that these credit ratings are included for informational
purposes and are not recommendations to buy, sell or hold our securities and may be revised or withdrawn at any time by the rating
agency. Each rating should be evaluated independently of any other rating. Any future reduction or withdrawal of one or more of
our credit ratings could have a material adverse impact on our ability to obtain short- and long-term financing, the cost of such
financings and the execution of our commercial strategies.

A decline in credit ratings could increase borrowing costs under our revolving credit facilities. If our credit ratings or those
of Houston Electric or CERC Corp. had been downgraded one notch by each of the three principal credit rating agencies from the
ratings that existed at December 31, 2017, the impact on the borrowing costs under the three revolving credit facilities would have
been immaterial. A decline in credit ratings would also increase the interest rate on long-term debt to be issued in the capital markets
and could negatively impact our ability to complete capital market transactions and to access the commercial paper market.
Additionally, a decline in credit ratings could increase cash collateral requirements and reduce earnings of our Natural Gas
Distribution and Energy Services business segments.

CES, a wholly-owned subsidiary of CERC Corp. operating in our Energy Services business segment, provides natural gas
sales and services primarily to commercial and industrial customers and electric and natural gas utilities throughout the United
States. To economically hedge its exposure to natural gas prices, CES uses derivatives with provisions standard for the industry,
including those pertaining to credit thresholds. Typically, the credit threshold negotiated with each counterparty defines the amount
of unsecured credit that such counterparty will extend to CES. To the extent that the credit exposure that a counterparty has to
CES at a particular time does not exceed that credit threshold, CES is not obligated to provide collateral. Mark-to-market exposure
in excess of the credit threshold is routinely collateralized by CES. Similarly, mark-to-market exposure offsetting and exceeding
the credit threshold may cause the counterparty to provide collateral to CES. As of December 31, 2017, the amount posted by
CES as collateral aggregated approximately $41 million. Should the credit ratings of CERC Corp. (as the credit support provider
for CES) fall below certain levels, CES would be required to provide additional collateral up to the amount of its previously
unsecured credit limit. We estimate that as of December 31, 2017, unsecured credit limits extended to CES by counterparties
aggregated $348 million, and $2 million of such amount was utilized.

Pipeline tariffs and contracts typically provide that if the credit ratings of a shipper or the shipper’s guarantor drop below a
threshold level, which is generally investment grade ratings from both Moody’s and S&P, cash or other collateral may be demanded
from the shipper in an amount equal to the sum of three months’ charges for pipeline services plus the unrecouped cost of any
lateral built for such shipper. If the credit ratings of CERC Corp. decline below the applicable threshold levels, CERC Corp. might
need to provide cash or other collateral of as much as $196 million as of December 31, 2017. The amount of collateral will depend
on seasonal variations in transportation levels.

ZENS and Securities Related to ZENS

If our creditworthiness were to drop such that ZENS holders thought our liquidity was adversely affected or the market for
the ZENS were to become illiquid, some ZENS holders might decide to exchange their ZENS for cash. Funds for the payment of
cash upon exchange could be obtained from the sale of the shares of TW Securities that we own or from other sources. We own
shares of TW Securities equal to approximately 100% of the reference shares used to calculate our obligation to the holders of the
ZENS. ZENS exchanges result in a cash outflow because tax deferrals related to the ZENS and TW Securities shares would
typically cease when ZENS are exchanged or otherwise retired and TW Securities shares are sold. The ultimate tax liability related
to the ZENS continues to increase by the amount of the tax benefit realized each year, and there could be a significant cash outflow
when the taxes are paid as a result of the retirement of the ZENS. If all ZENS had been exchanged for cash on December 31,
2017, deferred taxes of approximately $521 million would have been payable in 2017, based on 2017 tax rates in effect. If all the
TW Securities had been sold on December 31, 2017, capital gains taxes of approximately $297 million would have been payable
in 2017.

For additional information about ZENS, see Note 11 to our consolidated financial statements.

Cross Defaults

Under our revolving credit facility, a payment default on, or a non-payment default that permits acceleration of, any indebtedness
for borrowed money and certain other specified types of obligations (including guarantees) exceeding $125 million by us or any
of our significant subsidiaries will cause a default. A default by CenterPoint Energy would not trigger a default under our subsidiaries’
debt instruments or revolving credit facilities.

Possible Acquisitions, Divestitures and Joint Ventures

From time to time, we consider the acquisition or the disposition of assets or businesses or possible joint ventures, strategic
initiatives or other joint ownership arrangements with respect to assets or businesses. Any determination to take action in this
regard will be based on market conditions and opportunities existing at the time, and accordingly, the timing, size or success of
any efforts and the associated potential capital commitments are unpredictable. We may seek to fund all or part of any such efforts
with proceeds from debt and/or equity issuances. Debt or equity financing may not, however, be available to us at that time due
to a variety of events, including, among others, maintenance of our credit ratings, industry conditions, general economic conditions,
market conditions and market perceptions.

In February 2016, we announced that we were evaluating strategic alternatives for our investment in Enable, including a sale
or spin-off qualifying under Section 355 of the U.S. Internal Revenue Code. We have determined that we will no longer pursue a
spin option at this time. More recently, we announced that late-stage discussions with a third party regarding a transaction involving
our investment in Enable had terminated because an agreement on mutually acceptable terms could not be reached. We may reduce
our ownership in Enable over time through sales in the public equity markets, or otherwise, of the common units we hold, subject
to market conditions. Although a transaction for all our interests in Enable is not viable at this time, we may pursue such a transaction
if it is viable in the future. There can be no assurances that we will engage in any specific action or that any sale transaction or any
sale of common units in the public equity markets or otherwise will be completed, and we do not intend to disclose further
developments unless and until our Board of Directors approves a specific action or as otherwise required by applicable law or
NYSE regulations. Any sale transaction or sale of common units in the public equity markets or otherwise may involve significant
costs and expenses, including, in connection with any public offering, a significant underwriting discount. We may not realize
any or all of the anticipated strategic, financial, operational or other benefits from any completed sale or reduction in our investment
in Enable.

Enable Midstream Partners

We receive quarterly cash distributions from Enable on its common units and Series A Preferred Units we own. A reduction
in the cash distributions we receive from Enable could significantly impact our liquidity. For additional information about cash
distributions from Enable, see Notes 10 and 19 to our consolidated financial statements.

Hedging of Interest Expense for Future Debt Issuances

During 2016, 2017 and 2018, we entered into forward interest rate agreements to hedge, in part, volatility in the U.S. treasury
rates by reducing variability in cash flows related to interest payments. For further information, see Note 8(a) to our consolidated
financial statements.

Weather Hedge

We have historically entered into partial weather hedges for certain NGD jurisdictions and Houston Electric’s service territory
to mitigate the impact of fluctuations from normal weather. We remain exposed to some weather risk as a result of the partial
hedges. For more information about our weather hedges, see Note 8(a) to our consolidated financial statements.

Collection of Receivables from REPs

Houston Electric’s receivables from the distribution of electricity are collected from REPs that supply the electricity Houston
Electric distributes to their customers. Adverse economic conditions, structural problems in the market served by ERCOT or
financial difficulties of one or more REPs could impair the ability of these REPs to pay for Houston Electric’s services or could
cause them to delay such payments. Houston Electric depends on these REPs to remit payments on a timely basis, and any delay
or default in payment by REPs could adversely affect Houston Electric’s cash flows. In the event of a REP’s default, Houston
Electric’s tariff provides a number of remedies, including the option for Houston Electric to request that the PUCT suspend or
revoke the certification of the REP. Applicable regulatory provisions require that customers be shifted to another REP or a provider
of last resort if a REP cannot make timely payments. However, Houston Electric remains at risk for payments related to services
provided prior to the shift to the replacement REP or the provider of last resort. If a REP were unable to meet its obligations, it
could consider, among various options, restructuring under the bankruptcy laws, in which event such REP might seek to avoid
honoring its obligations, and claims might be made against Houston Electric involving payments it had received from such REP.
If a REP were to file for bankruptcy, Houston Electric may not be successful in recovering accrued receivables owed by such REP
that are unpaid as of the date the REP filed for bankruptcy. However, PUCT regulations authorize utilities, such as Houston
Electric, to defer bad debts resulting from defaults by REPs for recovery in future rate cases, subject to a review of reasonableness
and necessity.

Other Factors that Could Affect Cash Requirements

In addition to the above factors, our liquidity and capital resources could be affected by:

•

cash collateral requirements that could exist in connection with certain contracts, including our weather hedging
arrangements, and gas purchases, gas price and gas storage activities of our Natural Gas Distribution and Energy Services
business segments;

acceleration of payment dates on certain gas supply contracts, under certain circumstances, as a result of increased gas
prices and concentration of natural gas suppliers;

increased costs related to the acquisition of natural gas;

increases in interest expense in connection with debt refinancings and borrowings under credit facilities;

various legislative or regulatory actions;

incremental collateral, if any, that may be required due to regulation of derivatives;

the ability of GenOn and its subsidiaries, currently the subject of bankruptcy proceedings, to satisfy their obligations in
respect of GenOn’s indemnity obligations to us and our subsidiaries;

the ability of REPs, including REP affiliates of NRG and Vistra Energy Corp., formerly known as TCEH Corp., to satisfy
their obligations to us and our subsidiaries;

slower customer payments and increased write-offs of receivables due to higher gas prices or changing economic
conditions;

the outcome of litigation brought by or against us;

contributions to pension and postretirement benefit plans;

•

restoration costs and revenue losses resulting from future natural disasters such as hurricanes and the timing of recovery
of such restoration costs; and

•

various other risks identified in “Risk Factors” in Item 1A of Part I of this report.

Certain Contractual Limits on Our Ability to Issue Securities and Borrow Money

Houston Electric has contractually agreed that it will not issue additional first mortgage bonds, subject to certain exceptions.
For information about the total debt to capitalization financial covenants in our revolving credit facilities see Note 13 to our
consolidated financial statements.

CRITICAL ACCOUNTING POLICIES

A critical accounting policy is one that is both important to the presentation of our financial condition and results of operations
and requires management to make difficult, subjective or complex accounting estimates. An accounting estimate is an
approximation made by management of a financial statement element, item or account in the financial statements. Accounting
estimates in our historical consolidated financial statements measure the effects of past business transactions or events, or the
present status of an asset or liability. The accounting estimates described below require us to make assumptions about matters that
are highly uncertain at the time the estimate is made. Additionally, different estimates that we could have used or changes in an
accounting estimate that are reasonably likely to occur could have a material impact on the presentation of our financial condition,
results of operations or cash flows. The circumstances that make these judgments difficult, subjective and/or complex have to do
with the need to make estimates about the effect of matters that are inherently uncertain. Estimates and assumptions about future
events and their effects cannot be predicted with certainty. We base our estimates on historical experience and on various other
assumptions that we believe to be reasonable under the circumstances, the results of which form the basis for making judgments.
These estimates may change as new events occur, as more experience is acquired, as additional information is obtained and as our
operating environment changes. Our significant accounting policies are discussed in Note 2 to our consolidated financial statements.
We believe the following accounting policies involve the application of critical accounting estimates. Accordingly, these accounting
estimates have been reviewed and discussed with the Audit Committee of the Board of Directors.

Accounting for Rate Regulation

Accounting guidance for regulated operations provides that rate-regulated entities account for and report assets and liabilities
consistent with the recovery of those incurred costs in rates if the rates established are designed to recover the costs of providing
the regulated service and if the competitive environment makes it probable that such rates can be charged and collected. Our
Electric Transmission & Distribution business segment and our Natural Gas Distribution business segment apply this accounting
guidance. Certain expenses and revenues subject to utility regulation or rate determination normally reflected in income are deferred
on the balance sheet as regulatory assets or liabilities and are recognized in income as the related amounts are included in service
rates and recovered from or refunded to customers. Regulatory assets and liabilities are recorded when it is probable that these
items will be recovered or reflected in future rates. Determining probability requires significant judgment on the part of
management and includes, but is not limited to, consideration of testimony presented in regulatory hearings, proposed regulatory
decisions, final regulatory orders and the strength or status of applications for rehearing or state court appeals. If events were to
occur that would make the recovery of these assets and liabilities no longer probable, we would be required to write off or write
down these regulatory assets and liabilities. For further detail on our regulatory assets and liabilities, see Note 6 to our consolidated
financial statements.

Impairment of Long-Lived Assets, Including Identifiable Intangibles, Goodwill and Equity Method Investments

We review the carrying value of our long-lived assets, including identifiable intangibles, goodwill and equity method
investments whenever events or changes in circumstances indicate that such carrying values may not be recoverable, and at least
annually for goodwill as required by accounting guidance for goodwill and other intangible assets. Unforeseen events and changes
in market conditions could have a material effect on the value of long-lived assets, including intangibles, goodwill and equity
method investments due to changes in estimates of future cash flows, interest rate and regulatory matters and could result in an
impairment charge. A loss in value of an equity method investment is recognized when the decline is deemed to be other than
temporary. We recorded no goodwill impairments during 2017, 2016 and 2015. We did not record material impairments to long-
lived assets, including intangibles, during 2017, 2016 and 2015. We recorded impairments totaling $1,225 million to our equity
method investment during 2015 and no impairment during 2017 and 2016. See Notes 9 and 10 to our consolidated financial
statements for further discussion of the impairments recorded to our equity method investment in 2015.

We performed our annual goodwill impairment test in the third quarter of 2017 and determined, based on the results of the
first step, using the income approach, no impairment charge was required for any reporting unit. Our reporting units approximate
our reportable segments.

Fair value is the amount at which the asset could be bought or sold in a current transaction between willing parties and may
be estimated using a number of techniques, including quoted market prices or valuations by third parties, present value techniques
based on estimates of cash flows, or multiples of earnings or revenue performance measures. The fair value of the asset could be
different using different estimates and assumptions in these valuation techniques.

The determination of fair value requires significant assumptions by management which are subjective and forward-looking
in nature. To assist in making these assumptions, we utilized a third-party valuation specialist in both determining and testing key
assumptions used in the valuation of each of our reporting units. We based our assumptions on projected financial information
that we believe is reasonable; however, actual results may differ materially from those projections. These projected cash flows
factor in planned growth initiatives, and for our Natural Gas Distribution reporting unit, the regulatory environment. The fair
values of our Natural Gas Distribution and Energy Services reporting units significantly exceeded the carrying values.

Although there was not a goodwill asset impairment in our 2017 annual test, an interim impairment test could be triggered
by the following: actual earnings results that are materially lower than expected, significant adverse changes in the operating
environment, an increase in the discount rate, changes in other key assumptions which require judgment and are forward looking
in nature, or if our market capitalization falls below book value for an extended period of time. No impairment triggers were
identified subsequent to our 2017 annual test.

During the year ended December 31, 2015, we determined that an other than temporary decrease in the value of our investment
in Enable had occurred. The impairment analysis compared the estimated fair value of our investment in Enable to its carrying
value. The fair value of the investment was determined using multiple valuation methodologies under both the market and income
approaches.

Key assumptions in the market approach include recent market transactions of comparable companies and EBITDA to total
enterprise multiples for comparable companies. Due to volatility of the quoted price of Enable’s common units, a volume weighted
average price was used under the market approach to best approximate fair value at the measurement date. Key assumptions in
the income approach include Enable’s forecasted cash distributions, projected cash flows of incentive distribution rights, forecasted
growth rate of Enable’s cash distributions beyond 2020, and the discount rate used to determine the present value of the estimated
future cash flows. A weighing of the different approaches was utilized to determine the estimated fair value of our investment in
Enable.

As a result of the analysis, we recorded other than temporary impairments on our equity method investment in Enable of
$1,225 million during the year ended December 31, 2015. We based our assumptions on projected financial information that we
believe is reasonable; however, actual results may differ materially from those projections. It is reasonably possible that the estimate
of the impairment of our equity method investment in Enable will change in the near term due to the following: actual Enable
cash distribution is materially lower than expected, significant adverse changes in Enable’s operating environment, increase in
the discount rate, and changes in other key assumptions which require judgment and are forward-looking in nature.

Unbilled Energy Revenues

Revenues related to electricity delivery and natural gas sales and services are generally recognized upon delivery to customers.
However, the determination of deliveries to individual customers is based on the reading of their meters, which is performed on
a systematic basis throughout the month either electronically through AMS meter communications or manual readings. At the end
of each month, deliveries to non-AMS customers since the date of the last meter reading are estimated and the corresponding
unbilled revenue is estimated. Information regarding deliveries to AMS customers after the last billing is obtained from actual
AMS meter usage data. Unbilled electricity delivery revenue is estimated each month based on actual AMS meter data, daily
supply volumes and applicable rates. Unbilled natural gas sales are estimated based on estimated purchased gas volumes, estimated
lost and unaccounted for gas and tariffed rates in effect. As additional information becomes available, or actual amounts are
determinable, the recorded estimates are revised. Consequently, operating results can be affected by revisions to prior accounting
estimates.

Pension and Other Retirement Plans

We sponsor pension and other retirement plans in various forms covering all employees who meet eligibility requirements.
We use several statistical and other factors that attempt to anticipate future events in calculating the expense and liability related
68

to our plans. These factors include assumptions about the discount rate, expected return on plan assets and rate of future
compensation increases as estimated by management, within certain guidelines. In addition, our actuarial consultants use subjective
factors such as withdrawal and mortality rates. The actuarial assumptions used may differ materially from actual results due to
changing market and economic conditions, higher or lower withdrawal rates or longer or shorter life spans of participants. These
differences may result in a significant impact to the amount of pension expense recorded. Please read “— Other Significant
Matters — Pension Plans” for further discussion.

NEW ACCOUNTING PRONOUNCEMENTS

See Note 2(p) to our consolidated financial statements, incorporated herein by reference, for a discussion of new accounting

pronouncements that affect us.

OTHER SIGNIFICANT MATTERS

Pension Plans. As discussed in Note 7(b) to our consolidated financial statements, we maintain a non-contributory qualified
defined benefit pension plan covering substantially all employees. Employer contributions for the qualified plan are based on
actuarial computations that establish the minimum contribution required under ERISA and the maximum deductible contribution
for income tax purposes.

Under the terms of our pension plan, we reserve the right to change, modify or terminate the plan. Our funding policy is to

review amounts annually and contribute an amount at least equal to the minimum contribution required under ERISA.

The minimum funding requirements for the qualified pension plan were $39 million, $-0- and $-0- for 2017, 2016 and 2015,
respectively. We made contributions of $39 million, $-0- million and $35 million in 2017, 2016 and 2015 for the respective years.
We expect to contribute a minimum of approximately $60 million to the qualified pension plan in 2018.

Additionally, we maintain an unfunded non-qualified benefit restoration plan that allows participants to receive the benefits
to which they would have been entitled under our non-contributory qualified pension plan except for the federally mandated limits
on qualified plan benefits or on the level of compensation on which qualified plan benefits may be calculated. Employer
contributions for the non-qualified benefit restoration plan represent benefit payments made to participants and totaled $9 million,
$9 million and $31 million in 2017, 2016 and 2015, respectively. We expect to make contributions aggregating approximately
$7 million in 2018.

Changes in pension obligations and assets may not be immediately recognized as pension expense in the income statement,
but generally are recognized in future years over the remaining average service period of plan participants. As such, significant
portions of pension expense recorded in any period may not reflect the actual level of benefit payments provided to plan participants.

As the sponsor of a plan, we are required to (a) recognize on our balance sheet as an asset a plan’s over-funded status or as a
liability such plan’s under-funded status, (b) measure a plan’s assets and obligations as of the end of our fiscal year and (c) recognize
changes in the funded status of our plans in the year that changes occur through adjustments to other comprehensive income and
regulatory assets.

The projected benefit obligation for all defined benefit pension plans was $2,225 million and $2,197 million as of December 31,

2017 and 2016, respectively.

As of December 31, 2017, the projected benefit obligation exceeded the market value of plan assets of our pension plans by
$424 million. Changes in interest rates or the market values of the securities held by the plan during 2018 could materially, positively
or negatively, change our funded status and affect the level of pension expense and required contributions.

Pension cost was $95 million, $102 million and $90 million for 2017, 2016 and 2015, respectively, of which $71 million,
$67 million and $59 million impacted pre-tax earnings, respectively. Included in the 2015 pension costs was a $10 million settlement
charge as discussed below.

A one-time, non-cash settlement charge is required when lump sum distributions or other settlements of plan benefit obligations
during the year exceed the service cost and interest cost components of net periodic cost for the year. Due to the amount of lump
sum payment distributions from the non-qualified pension plan during the year ended December 31, 2015, CenterPoint Energy
recognized a non-cash settlement charge of $10 million. This charge is an acceleration of costs that would otherwise be recognized
in future periods.

The calculation of pension expense and related liabilities requires the use of assumptions. Changes in these assumptions can
result in different expense and liability amounts, and future actual experience can differ from the assumptions. Two of the most
critical assumptions are the expected long-term rate of return on plan assets and the assumed discount rate.

As of December 31, 2017, our qualified pension plan had an expected long-term rate of return on plan assets of 6.00%, which
is unchanged from the rate assumed as of December 31, 2016. The expected rate of return assumption was developed using the
targeted asset allocation of our plans and the expected return for each asset class. We regularly review our actual asset allocation
and periodically rebalance plan assets to reduce volatility and better match plan assets and liabilities.

As of December 31, 2017, the projected benefit obligation was calculated assuming a discount rate of 3.65%, which is 0.50%
lower than the 4.15% discount rate assumed as of December 31, 2016. The discount rate was determined by reviewing yields on
high-quality bonds that receive one of the two highest ratings given by a recognized rating agency and the expected duration of
pension obligations specific to the characteristics of our plan.

Our actuarially determined pension and other postemployment expense for 2017 and 2016 that is greater or less than the
amounts being recovered through rates in certain jurisdictions is deferred as a regulatory asset or liability, respectively. Pension
cost for 2018, including the benefit restoration plan, is estimated to be $61 million, of which we expect approximately $58 million
to impact pre-tax earnings after effecting such deferrals and capitalization, based on an expected return on plan assets of 6.00%
and a discount rate of 3.65% as of December 31, 2017. If the expected return assumption were lowered by 0.50% from 6.00% to
5.50%, 2018 pension cost would increase by approximately $9 million.

As of December 31, 2017, the pension plan projected benefit obligation, including the unfunded benefit restoration plan,
exceeded plan assets by $424 million. If the discount rate were lowered by 0.50% from 3.65% to 3.15%, the assumption change
would increase our projected benefit obligation by approximately $124 million and decrease our 2018 pension expense by
approximately $2 million. The expected reduction in pension expense due to the decrease in discount rate is a result of the expected
correlation between the reduced interest rate and appreciation of fixed income assets in pension plans with significantly more
fixed income instruments than equity instruments. In addition, the assumption change would impact our Consolidated Balance
Sheet by increasing the regulatory asset recorded as of December 31, 2017 by $107 million and would result in a charge to
comprehensive income in 2017 of $13 million, net of tax.

Future changes in plan asset returns, assumed discount rates and various other factors related to the pension plans will impact

our future pension expense and liabilities. We cannot predict with certainty what these factors will be in the future.

Item 7A. Quantitative and Qualitative Disclosures About Market Risk

Impact of Changes in Interest Rates, Equity Prices and Energy Commodity Prices

We are exposed to various market risks. These risks arise from transactions entered into in the normal course of business and
are inherent in our consolidated financial statements. Most of the revenues and income from our business activities are affected
by market risks. Categories of market risk include exposure to commodity prices through non-trading activities, interest rates and
equity prices. A description of each market risk is set forth below:

•

Interest rate risk primarily results from exposures to changes in the level of borrowings and changes in interest rates.

• Equity price risk results from exposures to changes in prices of individual equity securities.

• Commodity price risk results from exposures to changes in spot prices, forward prices and price volatilities of commodities,

such as natural gas, NGLs and other energy commodities.

Management has established comprehensive risk management policies to monitor and manage these market risks.

Interest Rate Risk

As of December 31, 2017, we had outstanding long-term debt, lease obligations and obligations under our ZENS that subject

us to the risk of loss associated with movements in market interest rates.

Our floating rate obligations aggregated $1.8 billion and $1.4 billion as of December 31, 2017 and 2016, respectively. If the
floating interest rates were to increase by 10% from December 31, 2017 rates, our combined interest expense would increase by
$3 million annually.

As of December 31, 2017 and 2016, we had outstanding fixed-rate debt (excluding indexed debt securities) aggregating $7
billion and $7.1 billion, respectively, in principal amount and having a fair value of $7.5 billion and $7.5 billion, respectively.
Because these instruments are fixed-rate, they do not expose us to the risk of loss in earnings due to changes in market interest
rates (see Note 13 to our consolidated financial statements). However, the fair value of these instruments would increase by
approximately $218 million if interest rates were to decline by 10% from their levels as of December 31, 2017. In general, such
an increase in fair value would impact earnings and cash flows only if we were to reacquire all or a portion of these instruments
in the open market prior to their maturity.

As discussed in Note 11 to our consolidated financial statements, the ZENS obligation is bifurcated into a debt component
and a derivative component. The debt component of $122 million at December 31, 2017 was a fixed-rate obligation and, therefore,
did not expose us to the risk of loss in earnings due to changes in market interest rates. However, the fair value of the debt component
would increase by approximately $19 million if interest rates were to decline by 10% from levels at December 31, 2017. Changes
in the fair value of the derivative component, a $668 million recorded liability at December 31, 2017, are recorded in our Statements
of Consolidated Income and, therefore, we are exposed to changes in the fair value of the derivative component as a result of
changes in the underlying risk-free interest rate. If the risk-free interest rate were to increase by 10% from December 31, 2017
levels, the fair value of the derivative component liability would increase by approximately $6 million, which would be recorded
as an unrealized loss in our Statements of Consolidated Income.

Equity Market Value Risk

We are exposed to equity market value risk through our ownership of 7.1 million shares of TW Common, 0.9 million shares
of Time Common and 0.9 million shares of Charter Common, which we hold to facilitate our ability to meet our obligations under
the ZENS. See Note 11 to our consolidated financial statements for a discussion of our ZENS obligation. Changes in the fair value
of the TW Securities held by CenterPoint Energy are expected to substantially offset changes in the fair value of the derivative
component of the ZENS. A decrease of 10% from the December 31, 2017 aggregate market value of these shares would result in
a net loss of approximately $2 million, which would be recorded as an unrealized loss in our Statements of Consolidated Income.

Commodity Price Risk From Non-Trading Activities

We manage these risk exposures through the implementation of our risk management policies and framework. We manage
our commodity price risk exposures through the use of derivative financial instruments and derivative commodity instrument
contracts. During the normal course of business, we review our hedging strategies and determine the hedging approach we deem
appropriate based upon the circumstances of each situation.

Derivative instruments such as futures, forward contracts, swaps and options derive their value from underlying assets, indices,
reference rates or a combination of these factors. These derivative instruments include negotiated contracts, which are referred to
as over-the-counter derivatives, and instruments that are listed and traded on an exchange.

Derivative transactions are entered into in our non-trading operations to manage and hedge certain exposures, such as exposure
to changes in natural gas prices. We believe that the associated market risk of these instruments can best be understood relative
to the underlying assets or risk being hedged.

We use derivative instruments as economic hedges to offset the commodity price exposure inherent in our businesses. The
commodity risk created by these instruments, including the offsetting impact on the market value of natural gas inventory, is
described below. We measure this commodity risk using a sensitivity analysis. For purposes of this analysis, we estimate commodity
price risk by applying a $0.50 change in the forward NYMEX price to our net open fixed price position (including forward fixed
price physical contracts, natural gas inventory and fixed price financial contracts) at the end of each period. As of December 31,
2017, the recorded fair value of our non-trading energy derivatives was a net asset of $111 million (before collateral), all of which
is related to our Energy Services business segment. A $0.50 change in the forward NYMEX price would have had a combined
impact of $5 million on our non-trading energy derivatives net asset and the market value of natural gas inventory.

Commodity price risk is not limited to changes in forward NYMEX prices. Variation of commodity pricing between the

different indices used to mark to market portions of our natural gas inventory (Gas Daily) and the related fair value hedge
(NYMEX) can result in volatility to our net income. Over time, any gains or losses on the sale of storage gas inventory would
be offset by gains or losses on the fair value hedges.

Item 8. Financial Statements and Supplementary Data

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and Shareholders of
CenterPoint Energy, Inc.
Houston, Texas

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheets of CenterPoint Energy, Inc. and subsidiaries (the "Company") as
of December 31, 2017 and 2016, the related statements of consolidated income, comprehensive income, shareholders' equity, and
cash flows, for each of the three years in the period ended December 31, 2017, and the related notes (collectively referred to as
the "financial statements"). In our opinion, the financial statements present fairly, in all material respects, the financial position
of the Company as of December 31, 2017 and 2016, and the results of its operations and its cash flows for each of the three years
in the period ended December 31, 2017, in conformity with accounting principles generally accepted in the United States of
America.

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States)
(PCAOB), the Company's internal control over financial reporting as of December 31, 2017, based on criteria established in
Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway
Commission and our report dated February 22, 2018, expressed an unqualified opinion on the Company's internal control over
financial reporting.

Basis for Opinion

These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on
the Company's financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are
required to be independent with respect to the Company 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
audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error
or fraud. Our audits included performing procedures to assess the risks of material misstatement of the 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 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 financial
statements. We believe that our audits provide a reasonable basis for our opinion.

/s/ DELOITTE & TOUCHE LLP

Houston, Texas
February 22, 2018

We have served as the Company's auditor since 1932.

CENTERPOINT ENERGY, INC. AND SUBSIDIARIES
STATEMENTS OF CONSOLIDATED INCOME

Revenues:

Utility revenues............................................................................................. $
Non-utility revenues .....................................................................................
Total .........................................................................................................

Expenses:

Utility natural gas .........................................................................................
Non-utility natural gas ..................................................................................
Operation and maintenance ..........................................................................
Depreciation and amortization......................................................................
Taxes other than income taxes......................................................................
Total .........................................................................................................
Operating Income .........................................................................................
Other Income (Expense):

Gain (loss) on marketable securities.............................................................
Gain (loss) on indexed debt securities ..........................................................
Interest and other finance charges ................................................................
Interest on Securitization Bonds...................................................................
Equity in earnings (losses) of unconsolidated affiliates ...............................
Other, net ......................................................................................................
Total .........................................................................................................
Income (Loss) Before Income Taxes ............................................................
Income tax expense (benefit)........................................................................
Net Income (Loss).......................................................................................... $

Basic Earnings (Loss) Per Share.................................................................. $

Diluted Earnings (Loss) Per Share .............................................................. $

Weighted Average Shares Outstanding, Basic............................................

Weighted Average Shares Outstanding, Diluted ........................................

Year Ended December 31,

2017

2016

2015

(in millions, except per share amounts)

5,603
4,011
9,614

1,109
3,785
2,221
1,036
391
8,542
1,072

7
49
(313)
(77)
265
60
(9)
1,063
(729)
1,792

4.16

4.13

431

434

5,440
2,088
7,528

983
1,983
2,093
1,126
384
6,569
959

326
(413)
(338)
(91)
208
35
(273)
686
254
432

1.00

431

434

5,448
1,938
7,386

1,264
1,838
2,007
970
374
6,453
933

(93)
74
(352)
(105)
(1,633)
46
(2,063)
(1,130)
(438)
(692)

(1.61)

430

See Notes to Consolidated Financial Statements

CENTERPOINT ENERGY, INC. AND SUBSIDIARIES
STATEMENTS OF CONSOLIDATED COMPREHENSIVE INCOME

Net income (loss) ............................................................................................ $
Other comprehensive income (loss):

Adjustment to pension and other postretirement plans (net of tax of $6, $4
and $12, respectively) ...............................................................................
Net deferred gain (loss) from cash flow hedges (net of tax of $2, $-0-, and
$-0-, respectively) .....................................................................................

Reclassification of deferred loss from cash flow hedges realized in net

income (net of tax of $-0-, $1, and $-0-, respectively) .............................
Other comprehensive income (loss)................................................................
Comprehensive income (loss) ......................................................................... $

Year Ended December 31,

2017

2016

(in millions)

2015

1,792

432

(692)

(3)

—

1,795

(7)

1
(5)
427

—

20
(672)

See Notes to Consolidated Financial Statements

CENTERPOINT ENERGY, INC. AND SUBSIDIARIES
CONSOLIDATED BALANCE SHEETS

December 31,
2017

December 31,
2016

(in millions)

ASSETS
Current Assets:

Cash and cash equivalents ($230 and $340 related to VIEs, respectively) ......................................... $
Investment in marketable securities ..............................................................................................
Accounts receivable ($73 and $52 related to VIEs, respectively), less bad debt reserve of $19 and

$15, respectively .....................................................................................................................
Accrued unbilled revenues ...........................................................................................................
Natural gas inventory ..................................................................................................................
Materials and supplies .................................................................................................................
Non-trading derivative assets .......................................................................................................
Taxes receivable .........................................................................................................................
Prepaid expense and other current assets ($35 and $40 related to VIEs, respectively) ........................
Total current assets .................................................................................................................
Property, Plant and Equipment, net .............................................................................................
Other Assets:

Goodwill ...................................................................................................................................
Regulatory assets ($1,590 and $1,919 related to VIEs, respectively) ................................................
Non-trading derivative assets .......................................................................................................
Investment in unconsolidated affiliates .........................................................................................
Preferred units - unconsolidated affiliate .......................................................................................
Other .........................................................................................................................................
Total other assets ...................................................................................................................

Total Assets ................................................................................................................... $

260
960

1,000
427
222
175
110
—
241
3,395
13,057

867
2,347
44
2,472
363
191
6,284
22,736

341
953

740
335
131
181
51
30
161
2,923
12,307

862
2,677
19
2,505
363
173
6,599
21,829

See Notes to Consolidated Financial Statements

CENTERPOINT ENERGY, INC. AND SUBSIDIARIES
CONSOLIDATED BALANCE SHEETS, cont.

LIABILITIES AND SHAREHOLDERS’ EQUITY
Current Liabilities:

Short-term borrowings ................................................................................................................. $
Current portion of VIE Securitization Bonds long-term debt ............................................................
Indexed debt ...............................................................................................................................
Current portion of other long-term debt .........................................................................................
Indexed debt securities derivative .................................................................................................
Accounts payable ........................................................................................................................
Taxes accrued .............................................................................................................................
Interest accrued ...........................................................................................................................
Dividends accrued .......................................................................................................................
Non-trading derivative liabilities ...................................................................................................
Other ..........................................................................................................................................
Total current liabilities ............................................................................................................

Other Liabilities:

Deferred income taxes, net ...........................................................................................................
Non-trading derivative liabilities ...................................................................................................
Benefit obligations ......................................................................................................................
Regulatory liabilities ....................................................................................................................
Other ..........................................................................................................................................
Total other liabilities ...............................................................................................................

Long-term Debt:

VIE Securitization Bonds, net .......................................................................................................
Other long-term debt, net .............................................................................................................
Total long-term debt, net .........................................................................................................

Commitments and Contingencies (Note 15)
Shareholders’ Equity:

December 31,
2017

December 31,
2016

(in millions, except par value
and shares)

39
434
122
50
668
963
181
104
120
20
368
3,069

3,174
4
785
2,464
357
6,784

1,434
6,761
8,195

35
411
114
500
717
657
172
108
—
41
325
3,080

5,263
5
913
1,298
278
7,757

1,867
5,665
7,532

Cumulative preferred stock, $0.01 par value, 20,000,000 shares authorized, none issued or

outstanding ..............................................................................................................................

Common stock, $0.01 par value, 1,000,000,000 shares authorized, 431,044,845 shares and

430,682,504 shares outstanding, respectively ..............................................................................
Additional paid-in capital .............................................................................................................
Retained earnings (accumulated deficit) ........................................................................................
Accumulated other comprehensive loss .........................................................................................
Total shareholders’ equity ........................................................................................................

Total Liabilities and Shareholders’ Equity ...................................................................... $

—

4
4,209
543
(68)
4,688
22,736

4
4,195
(668)
(71)
3,460
21,829

See Notes to Consolidated Financial Statements

CENTERPOINT ENERGY, INC. AND SUBSIDIARIES
STATEMENTS OF CONSOLIDATED CASH FLOWS

2017

Year Ended December 31,
2016
(in millions)

2015

Cash Flows from Operating Activities:

Net income (loss) ................................................................................................................... $
Adjustments to reconcile net income (loss) to net cash provided by operating activities:

1,792

432

(692)

Depreciation and amortization ................................................................................................
Amortization of deferred financing costs ...................................................................................
Deferred income taxes ..........................................................................................................
Unrealized loss (gain) on marketable securities ...........................................................................
Loss (gain) on indexed debt securities ......................................................................................
Write-down of natural gas inventory ........................................................................................
Equity in (earnings) losses of unconsolidated affiliates, net of distributions ........................................
Pension contributions ...........................................................................................................
Changes in other assets and liabilities, excluding acquisitions:

Accounts receivable and unbilled revenues, net ...................................................................
Inventory ...................................................................................................................
Taxes receivable ...........................................................................................................
Accounts payable .........................................................................................................
Fuel cost recovery ........................................................................................................
Non-trading derivatives, net ............................................................................................
Margin deposits, net ......................................................................................................
Interest and taxes accrued ...............................................................................................
Net regulatory assets and liabilities ...................................................................................
Other current assets ......................................................................................................
Other current liabilities ..................................................................................................
Other assets ................................................................................................................
Other liabilities ............................................................................................................
Other, net ..........................................................................................................................
Net cash provided by operating activities .......................................................................

Cash Flows from Investing Activities:

Capital expenditures ...............................................................................................................
Acquisitions, net of cash acquired ..............................................................................................
Decrease in notes receivable - unconsolidated affiliate ....................................................................
Investment in preferred units - unconsolidated affiliate ....................................................................
Distributions from unconsolidated affiliates in excess of cumulative earnings .......................................
Decrease (increase) in restricted cash of Bond companies ................................................................
Proceeds from sale of marketable securities ..................................................................................
Other, net .............................................................................................................................
Net cash used in investing activities .............................................................................

Cash Flows from Financing Activities:

Increase (decrease) in short-term borrowings, net ...........................................................................
Proceeds from commercial paper, net ..........................................................................................
Proceeds from long-term debt, net ..............................................................................................
Payments of long-term debt ......................................................................................................
Loss on reacquired debt ...........................................................................................................
Debt issuance costs ................................................................................................................
Payment of dividends on common stock ......................................................................................
Distribution to ZENS holders ....................................................................................................
Other, net .............................................................................................................................
Net cash used in financing activities .............................................................................
Net Increase (Decrease) in Cash and Cash Equivalents .......................................................................
Cash and Cash Equivalents at Beginning of Year ..............................................................................
Cash and Cash Equivalents at End of Year ....................................................................................... $

1,036
24
(770)

(7)
(49)
—
(265)
(48)

(216)
(7)
30
136
(85)
(84)
(55)
5
(107)
1
34
(4)
36
24
1,421

(1,426)
(132)
—
—
297
5
—
(1)
(1,257)

349
1,096
(1,211)
(5)
(13)
(461)
—
(4)
(245)
(81)
341
260

1,126
26
213

(326)
413
1
(208)
(9)

(117)
34
142
133
(72)
30
101
5
(60)
(17)
22
(16)
30
48
1,931

(1,414)
(102)
363
(363)
297
(5)
178
—
(1,046)

(5)

469
600
(1,218)
(22)
(9)
(443)
(178)
(2)
(808)
77
264
341

970
27
(413)

93
(74)
4
1,779
(66)

345
28
18
(224)
43
(7)
(4)
(10)
63
10
(50)
(5)
8
27
1,870

(1,584)
—
—
—
148
12
32
5
(1,387)

(13)

403
200
(644)
—
—
(426)
(32)
(5)
(517)
(34)
298
264

See Notes to Consolidated Financial Statements

CENTERPOINT ENERGY, INC. AND SUBSIDIARIES
STATEMENTS OF CONSOLIDATED CASH FLOWS, cont.

Year Ended December 31,

2017

2016
(in millions)

2015

Supplemental Disclosure of Cash Flow Information:

Cash Payments:

Interest, net of capitalized interest ............................................................................................ $
Income taxes (refunds), net ....................................................................................................

Non-cash transactions:

Accounts payable related to capital expenditures .........................................................................

378
15

144

406
(104)

426
(45)

See Notes to Consolidated Financial Statements

CENTERPOINT ENERGY, INC. AND SUBSIDIARIES
STATEMENTS OF CONSOLIDATED SHAREHOLDERS’ EQUITY

Preference Stock, none outstanding ..............................
Cumulative Preferred Stock, $0.01 par value;

authorized 20,000,000 shares, none outstanding ......

Common Stock, $0.01 par value; authorized

1,000,000,000 shares

Balance, beginning of year ........................................
Issuances related to benefit and investment plans .....
Balance, end of year...................................................

Additional Paid-in-Capital

Balance, beginning of year ........................................
Issuances related to benefit and investment plans .....
Balance, end of year...................................................

Retained Earnings (Accumulated Deficit)

Balance, beginning of year ........................................
Net income (loss) .......................................................
Common stock dividends declared ($1.3475, $1.03

and $0.99 per share, respectively) ..........................
Balance, end of year...................................................

Accumulated Other Comprehensive Loss

Balance, end of year:
Adjustment to pension and postretirement plans .......
Net deferred gain (loss) from cash flow hedges ........
Total accumulated other comprehensive loss, end of
year .........................................................................
Total Shareholders’ Equity.............................................

2017

2016

2015

Amount

(in millions of dollars and shares, except per share amounts)

— $

—

431

—

431

—

4,195

4,209

(668)
1,792

(581)
543

(66)
(2)

— $

—

430

431

—

4,180

4,195

(657)
432

(443)
(668)

(72)
1

— $

—

430

—

430

—

4,169

4,180

461
(692)

(426)
(657)

(65)
(1)

(68)
$ 4,688

(71)
$ 3,460

(66)
$ 3,461

See Notes to Consolidated Financial Statements

CENTERPOINT ENERGY, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(1) Background

CenterPoint Energy, Inc. is a public utility holding company. CenterPoint Energy’s operating subsidiaries own and operate
electric transmission and distribution and natural gas distribution facilities, supply natural gas to commercial and industrial
customers and electric and natural gas utilities and own interests in Enable as described below. CenterPoint Energy’s indirect,
wholly-owned subsidiaries include:

• Houston Electric, which engages in the electric transmission and distribution business in the Texas Gulf Coast area that

includes the city of Houston;

• CERC Corp., which owns and operates natural gas distribution systems in six states; and

• CES, which obtains and offers competitive variable and fixed-price physical natural gas supplies and services primarily

to commercial and industrial customers and electric and natural gas utilities in 33 states.

As of December 31, 2017, CenterPoint Energy also owned an aggregate of 14,520,000 Series A Preferred Units in Enable,
which owns, operates and develops natural gas and crude oil infrastructure assets, and CERC Corp. owned approximately 54.1%
of the common units representing limited partner interests in Enable.

For a description of CenterPoint Energy’s reportable business segments, see Note 18.

(2) Summary of Significant Accounting Policies

(a) Use of Estimates

The preparation of financial statements in conformity with generally accepted accounting principles requires management to
make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and
liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period.
Actual results could differ from those estimates.

(b) Principles of Consolidation

The accounts of CenterPoint Energy and its wholly-owned and majority owned subsidiaries are included in the consolidated

financial statements. All intercompany transactions and balances are eliminated in consolidation.

As of December 31, 2017, CenterPoint Energy had VIEs consisting of the Bond Companies, which it consolidates. The
consolidated VIEs are wholly-owned, bankruptcy remote special purpose entities that were formed solely for the purpose of
securitizing transition and system restoration related property. Creditors of CenterPoint Energy have no recourse to any assets or
revenues of the Bond Companies. The bonds issued by these VIEs are payable only from and secured by transition and system
restoration property and the bondholders have no recourse to the general credit of CenterPoint Energy.

CenterPoint Energy generally uses the equity method of accounting for investments in entities in which CenterPoint Energy
has an ownership interest between 20% and 50% and exercises significant influence. CenterPoint Energy also uses the equity
method for investments in which it has ownership percentages greater than 50%, when it exercises significant influence, does not
have control and is not considered the primary beneficiary, if applicable.

In 2013, CenterPoint Energy, OGE and affiliates of ArcLight, formed Enable as a private limited partnership. CenterPoint
Energy has the ability to significantly influence the operating and financial policies of, but not solely control, Enable and,
accordingly, recorded an equity method investment. The net assets contributed were deemed to be in-substance real estate and
were therefore recorded at historical cost.

Under the equity method, CenterPoint Energy adjusts its investment in Enable each period for contributions made, distributions
received, CenterPoint Energy’s share of Enable’s comprehensive income and amortization of basis differences, as appropriate.
CenterPoint Energy evaluates its equity method investments for impairment when events or changes in circumstances indicate
there is a loss in value of the investment that is other than a temporary decline.

CenterPoint Energy’s investment in Enable is considered to be a VIE because the power to direct the activities that most
significantly impact Enable’s economic performance does not reside with the holders of equity investment at risk. However,
CenterPoint Energy is not considered the primary beneficiary of Enable since it does not have the power to direct the activities of
Enable that are considered most significant to the economic performance of Enable.

CenterPoint Energy considers distributions received from equity method investments which do not exceed cumulative equity
in earnings subsequent to the date of investment to be a return on investment and classifies these distributions as operating activities
in the Statements of Consolidated Cash Flows. CenterPoint Energy considers distributions received from equity method investments
in excess of cumulative equity in earnings subsequent to the date of investment to be a return of investment and classifies these
distributions as investing activities in the Statements of Consolidated Cash Flows.

Other investments, excluding marketable securities, are carried at cost.

(d) Revenues

CenterPoint Energy records revenue for electricity delivery and natural gas sales and services under the accrual method and
these revenues are recognized upon delivery to customers. Electricity deliveries not billed by month-end are accrued based on
actual AMS data, daily supply volumes and applicable rates. Natural gas sales not billed by month-end are accrued based upon
estimated purchased gas volumes, estimated lost and unaccounted for gas and currently effective tariff rates.

(e) Long-lived Assets and Intangibles

CenterPoint Energy records property, plant and equipment at historical cost. CenterPoint Energy expenses repair and

maintenance costs as incurred.

CenterPoint Energy periodically evaluates long-lived assets, including property, plant and equipment, and specifically
identifiable intangibles, when events or changes in circumstances indicate that the carrying value of these assets may not be
recoverable. The determination of whether an impairment has occurred is based on an estimate of undiscounted cash flows
attributable to the assets compared to the carrying value of the assets.

(f) Regulatory Assets and Liabilities

CenterPoint Energy applies the guidance for accounting for regulated operations to the Electric Transmission & Distribution
business segment and the Natural Gas Distribution business segment. CenterPoint Energy’s rate-regulated subsidiaries may collect
revenues subject to refund pending final determination in rate proceedings. In connection with such revenues, estimated rate refund
liabilities are recorded which reflect management’s current judgment of the ultimate outcomes of the proceedings.

CenterPoint Energy’s rate-regulated businesses recognize removal costs as a component of depreciation expense in accordance
with regulatory treatment. In addition, a portion of the amount of removal costs that relate to AROs has been reclassified from a
regulatory liability to an asset retirement liability in accordance with accounting guidance for AROs.

For further detail on CenterPoint Energy’s regulatory assets and liabilities, please see Note 6.

(g) Depreciation and Amortization Expense

Depreciation and amortization is computed using the straight-line method based on economic lives or regulatory-mandated

recovery periods. Amortization expense includes amortization of certain regulatory assets and other intangibles.

(h) Capitalization of Interest and AFUDC

Interest and AFUDC are capitalized as a component of projects under construction and are amortized over the assets’ estimated
useful lives once the assets are placed in service. AFUDC represents the composite interest cost of borrowed funds and a reasonable
return on the equity funds used for construction for subsidiaries that apply the guidance for accounting for regulated operations.
Although AFUDC increases both utility plant and earnings, it is realized in cash when the assets are included in rates.

CenterPoint Energy recorded the following:

Year Ended December 31,

2017

2016

2015

(in millions)

Capitalized interest and AFUDC included in Interest and other finance charges ........
AFUDC equity included in Other Income....................................................................

(i) Income Taxes

CenterPoint Energy uses the asset and liability method of accounting for deferred income taxes. Deferred income tax assets
and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying
amounts of existing assets and liabilities and their respective tax bases. A valuation allowance is established against deferred tax
assets for which management believes realization is not considered to be more likely than not. CenterPoint Energy recognizes
interest and penalties as a component of income tax expense. CenterPoint Energy reports the income tax provision associated with
its interest in Enable in Income tax expense (benefit) in its Statements of Consolidated Income.

To the extent certain EDIT of CenterPoint Energy’s rate-regulated subsidiaries may be recoverable or payable through future

rates, regulatory assets and liabilities have been recorded, respectively.

On December 22, 2017, President Trump signed into law comprehensive tax reform legislation informally called the Tax Cuts
and Jobs Acts, or TCJA, which resulted in significant changes to federal tax laws effective January 1, 2018. See Note 14 for further
discussion of the impacts of tax reform implementation.

(j) Accounts Receivable and Allowance for Doubtful Accounts

Accounts receivable are recorded at the invoiced amount and do not bear interest. It is the policy of management to review
the outstanding accounts receivable monthly, as well as the bad debt write-offs experienced in the past, and establish an allowance
for doubtful accounts. Account balances are charged off against the allowance when management determines it is probable the
receivable will not be recovered. The provision for doubtful accounts in CenterPoint Energy’s Statements of Consolidated Income
for 2017, 2016 and 2015 was $14 million, $7 million and $19 million, respectively.

(k) Inventory

Inventory consists principally of materials and supplies and natural gas. Materials and supplies are valued at the lower of
average cost or market. Materials and supplies are recorded to inventory when purchased and subsequently charged to expense
or capitalized to plant when installed. Natural gas inventories of CenterPoint Energy’s Energy Services business segment are
valued at the lower of average cost or market. Natural gas inventories of CenterPoint Energy’s Natural Gas Distribution business
segment are primarily valued at weighted average cost. During 2017, 2016 and 2015, CenterPoint Energy recorded write-downs
of natural gas inventory to the lower of average cost or market which are disclosed on the Statements of Consolidated Cash Flows.

(l) Derivative Instruments

CenterPoint Energy is exposed to various market risks. These risks arise from transactions entered into in the normal course
of business. CenterPoint Energy utilizes derivative instruments such as physical forward contracts, swaps and options to mitigate
the impact of changes in commodity prices, weather and interest rates on its operating results and cash flows. Such derivatives
are recognized in CenterPoint Energy’s Consolidated Balance Sheets at their fair value unless CenterPoint Energy elects the normal
purchase and sales exemption for qualified physical transactions. A derivative may be designated as a normal purchase or normal
sale if the intent is to physically receive or deliver the product for use or sale in the normal course of business.

CenterPoint Energy has a Risk Oversight Committee composed of corporate and business segment officers that oversees
commodity price, weather and credit risk activities, including CenterPoint Energy’s marketing, risk management services and
hedging activities. The committee’s duties are to establish CenterPoint Energy’s commodity risk policies, allocate board-approved
commercial risk limits, approve the use of new products and commodities, monitor positions and ensure compliance with
CenterPoint Energy’s risk management policies and procedures and limits established by CenterPoint Energy’s Board of Directors.

CenterPoint Energy’s policies prohibit the use of leveraged financial instruments. A leveraged financial instrument, for this
purpose, is a transaction involving a derivative whose financial impact will be based on an amount other than the notional amount
or volume of the instrument.

(m) Investments in Other Debt and Equity Securities

CenterPoint Energy reports securities classified as trading at estimated fair value in its Consolidated Balance Sheets, and any

unrealized holding gains and losses are recorded as Other Income (Expense) in its Statements of Consolidated Income.

(n) Environmental Costs

CenterPoint Energy expenses or capitalizes environmental expenditures, as appropriate, depending on their future economic
benefit. CenterPoint Energy expenses amounts that relate to an existing condition caused by past operations that do not have future
economic benefit. CenterPoint Energy records undiscounted liabilities related to these future costs when environmental assessments
and/or remediation activities are probable and the costs can be reasonably estimated.

(o) Cash and Cash Equivalents and Restricted Cash

For purposes of reporting cash flows, CenterPoint Energy considers cash equivalents to be short-term, highly-liquid
investments with maturities of three months or less from the date of purchase. Cash and cash equivalents held by the Bond
Companies (VIEs) solely to support servicing the Securitization Bonds as of December 31, 2017 and 2016 are reflected on the
Consolidated Balance Sheets.

In connection with the issuance of Securitization Bonds, CenterPoint Energy was required to establish restricted cash accounts
to collateralize the bonds that were issued in these financing transactions. These restricted cash accounts are not available for
withdrawal until the maturity of the bonds and are not included in cash and cash equivalents. Restricted cash accounts as of
December 31, 2017 and 2016 are reported below.

Restricted cash included in Prepaid expenses and other current assets ..............................
Restricted cash included in Other assets .............................................................................
Total restricted cash...........................................................................................................

(p) New Accounting Pronouncements

Recently Adopted

December 31,

2017

2016

(in millions)

—

In March 2016, the FASB issued ASU No. 2016-09, Compensation-Stock Compensation (Topic 718): Improvements to
Employee Share-Based Payment Accounting (ASU 2016-09). The new guidance simplifies several aspects of the accounting for
share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities,
and classification on the statement of cash flows. CenterPoint Energy adopted this standard as of January 1, 2017. The adoption
did not have a material impact on CenterPoint Energy’s financial position or results of operations. However, CenterPoint Energy’s
statement of cash flows reflects a decrease in financing activity and a corresponding increase in operating activity of $4 million,
$3 million and $5 million as of December 31, 2017, 2016 and 2015, respectively, due to the retrospective application of the
requirement that cash paid to a tax authority when shares are withheld to satisfy statutory income tax withholding obligations
should be presented as a financing rather than as an operating activity.

Issued, Not Yet Effective

In January 2016, the FASB issued ASU No. 2016-01, Financial Instruments-Overall (Subtopic 825-10): Recognition and
Measurement of Financial Assets and Financial Liabilities (ASU 2016-01). ASU 2016-01 requires equity investments that do not
result in consolidation and are not accounted for under the equity method to be measured at fair value and to recognize any changes
in fair value in net income unless the investments qualify for the new practicability exception. It does not change the guidance for
classifying and measuring investments in debt securities and loans. ASU 2016-01 also changes certain disclosure requirements
and other aspects related to recognition and measurement of financial assets and financial liabilities. ASU 2016-01 is effective for
fiscal years, and interim periods within those years, beginning after December 15, 2017. As of the first reporting period in which
83

the guidance is adopted, a cumulative-effect adjustment to beginning retained earnings will be made, with two features that will
be adopted prospectively. This standard will not have a material impact on CenterPoint Energy’s financial position, results of
operations, cash flows and disclosures upon adoption on January 1, 2018.

In 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842) (ASU 2016-02) and related amendments. ASU 2016-02
provides a comprehensive new lease model that requires lessees to recognize assets and liabilities for most leases and would
change certain aspects of lessor accounting. ASU 2016-02 is effective for fiscal years, and interim periods within those fiscal
years, beginning after December 15, 2018, with early adoption permitted. CenterPoint Energy expects to adopt this standard on
January 1, 2019 and is evaluating available transitional practical expedients. A modified retrospective adoption approach is required.
CenterPoint Energy is in the process of reviewing contracts to identify leases as defined in ASU 2016-02 and expects to recognize
on the statements of financial position right-of-use assets and lease liabilities for the majority of its leases that are currently classified
as operating leases. CenterPoint Energy is continuing to assess the impact that this standard will have on its financial position,
results of operations, cash flows and disclosures.

In 2016 and 2017, the FASB issued ASUs which amended ASU No. 2014-09, Revenue from Contracts with Customers (Topic
606). ASU 2014-09, as amended, provides a comprehensive new revenue recognition model that requires revenue to be recognized
in a manner that depicts the transfer of goods or services to a customer at an amount that reflects the consideration expected to be
received in exchange for those goods or services. Early adoption is permitted, and entities have the option of using either a full
retrospective or a modified retrospective adoption approach. While these ASUs will expand disclosures, CenterPoint Energy has
not identified any significant changes as the result of these new standards. A substantial amount of CenterPoint Energy’s revenues
are tariff and derivative based, which will not be significantly impacted by these ASUs. ASU 2014-09 eliminates industry specific
guidance, including ASC 360-20, and as a result our investment in Enable will no longer be considered in-substance real estate.
Gains or losses on subsequent sales or dilution events in our investment in Enable will be recognized in earnings. CenterPoint
Energy adopted these ASUs on January 1, 2018 using the modified retrospective adoption approach.

In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash
Receipts and Cash Payments (ASU 2016-15). ASU 2016-15 provides clarifying guidance on the classification of certain cash
receipts and payments in the statement of cash flows and eliminates the variation in practice related to such classifications. ASU
2016-15 is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2017, with early
adoption permitted. CenterPoint Energy adopted this standard on January 1, 2018. A retrospective adoption approach is required.
CenterPoint Energy does not believe this standard will have a material impact on its financial position, results of operations, and
disclosures. Due to the requirement that cash proceeds from COLI policies be classified as cash inflows from investing activity,
there will be an increase in investing activity and a corresponding decrease in operating activity on the statement of cash flows
when COLI proceeds are received.

In November 2016, the FASB issued ASU No. 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash (ASU 2016-18).
ASU 2016-18 requires that a statement of cash flows explain the change during the period in the total of cash, cash equivalents,
restricted cash and restricted cash equivalents. As a result, the statement of cash flows will no longer present transfers between
cash and cash equivalents and restricted cash and restricted cash equivalents. When cash, cash equivalents, restricted cash and
restricted cash equivalents are presented in more than one line item on the balance sheet, the new guidance requires a reconciliation
of the totals in the statement of cash flows to the related captions in the balance sheet. ASU 2016-18 is effective for fiscal years,
and interim periods within those fiscal years, beginning after December 15, 2017, with early adoption permitted. A retrospective
adoption approach is required. This standard will not have an impact on CenterPoint Energy’s financial position, results of
operations, and disclosures, but it will have an impact on the presentation of the statement of cash flows upon adoption on January
1, 2018.

In January 2017, the FASB issued ASU No. 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a
Business (ASU 2017-01). ASU 2017-01 revises the definition of a business. If substantially all of the fair value of the gross assets
acquired is concentrated in a single identifiable asset or a group of similar identifiable assets, then under ASU 2017-01, the asset
or group of assets is not a business. The guidance also requires a business to include at least one substantive process and narrows
the definition of outputs to be more closely aligned with how outputs are described in ASC 606. ASU 2017-01 is effective for
fiscal years, and interim periods within those fiscal years, beginning after December 15, 2017, with early adoption permitted in
certain circumstances. A prospective adoption approach is required. ASU 2017-01 could have a potential impact on CenterPoint
Energy’s accounting for future acquisitions upon adoption on January 1, 2018.

In January 2017, the FASB issued ASU No. 2017-04, Intangibles-Goodwill and Other (Topic 350): Simplifying the Test for
Goodwill Impairment (ASU 2017-04). ASU 2017-04 eliminates Step 2 of the goodwill impairment test, which requires a
hypothetical purchase price allocation. A goodwill impairment will now be the amount by which a reporting unit’s carrying value
exceeds its fair value, not to exceed the carrying amount of goodwill. ASU 2017-04 is effective for fiscal years, and interim periods
84

within those fiscal years, beginning after December 15, 2019, with early adoption permitted. CenterPoint Energy will adopt ASU
2017-04 on January 1, 2018. A prospective adoption approach is required. ASU 2017-04 will have an impact on CenterPoint
Energy’s future calculation of goodwill impairments if an impairment is identified.

In February 2017, the FASB issued ASU No. 2017-05, Other Income-Gains and Losses from the Derecognition of Nonfinancial
Assets (Subtopic 610-20): Clarifying the Scope of Asset Derecognition Guidance and Accounting for Partial Sales of Nonfinancial
Assets (ASU 2017-05). ASU 2017-05 clarifies when and how to apply ASC 610-20 Gains and Losses from the Derecognition of
Nonfinancial Assets, which was issued as part of ASU 2014-09 Revenue from Contracts with Customers (Topic 606). ASU 2017-05
is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2017, with early adoption
permitted. Companies can elect a retrospective or modified retrospective approach to adoption. This standard will not have a
material impact on CenterPoint Energy’s financial position, results of operations, cash flows and disclosures upon adoption on
January 1, 2018.

In March 2017, the FASB issued ASU No. 2017-07, Compensation-Retirement Benefits (Topic 715): Improving the
Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost (ASU 2017-07). ASU 2017-07 requires
an employer to report the service cost component of the net periodic pension cost and postretirement benefit cost in the same line
item(s) as other employee compensation costs arising from services rendered during the period; all other components will be
presented separately from the line item(s) that includes the service cost and outside of any subtotal of operating income. In addition,
only the service cost component will be eligible for capitalization in assets. ASU 2017-07 is effective for fiscal years, and interim
periods within those fiscal years, beginning after December 15, 2017, with early adoption permitted. ASU 2017-07 should be
applied retrospectively for the presentation of the service cost component and the other components and prospectively for the
capitalization of the service cost component. The adoption of this guidance is expected to result in an increase to operating income
and a decrease to other income. Prospectively, other components previously capitalized in assets will be recorded as regulatory
assets in CenterPoint Energy’s rate-regulated businesses. This standard will not have a material impact on CenterPoint Energy’s
financial position, results of operations, cash flows and disclosures upon adoption on January 1, 2018.

In May 2017, the FASB issued ASU No. 2017-09, Compensation-Stock Compensation (Topic 718): Scope of Modification
Accounting (ASU 2017-09). ASU 2017-09 clarifies when changes to the terms or conditions of a share-based payment award must
be accounted for as a modification. Entities will apply the modification accounting guidance if the value, vesting conditions or
classification of the award changes. ASU 2017-09 is effective for fiscal years, and interim periods within those fiscal years,
beginning after December 15, 2017, with early adoption permitted. ASU 2017-09 should be applied prospectively for awards
modified on or after the adoption date. This standard, upon adoption on January 1, 2018, will have an impact on CenterPoint
Energy’s accounting for future changes to share-based payment awards.

In August 2017, the FASB issued ASU No. 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to
Accounting for Hedging Activities (ASU 2017-12). ASU 2017-12 expands an entity’s ability to hedge nonfinancial and financial
risk components and reduce complexity in fair value hedges of interest rate risk. The guidance eliminates the requirement to
separately measure and report hedge ineffectiveness, eases certain documentation and assessment requirements, and updates the
presentation and disclosure requirements. ASU 2017-12 is effective for fiscal years, and interim periods within those fiscal years,
beginning after December 15, 2018, with early adoption permitted. A cumulative-effect adjustment to eliminate the separate
measurement of ineffectiveness upon adoption is required for existing cash flow and net investment hedges. Presentation and
disclosure guidance should be applied prospectively. CenterPoint Energy is currently assessing the impact that this standard will
have on its financial position, results of operations, cash flows and disclosures.

Management believes that other recently issued standards, which are not yet effective, will not have a material impact on

CenterPoint Energy’s consolidated financial position, results of operations or cash flows upon adoption.

(3) Property, Plant and Equipment

(a) Property, Plant and Equipment

Property, plant and equipment includes the following:

Electric Transmission & Distribution .............................................................
Natural Gas Distribution .................................................................................
Energy Services...............................................................................................
Other property .................................................................................................
Total.......................................................................................................

Accumulated depreciation and amortization:

Electric Transmission & Distribution ...........................................................
Natural Gas Distribution...............................................................................
Energy Services ............................................................................................
Other property...............................................................................................
Total accumulated depreciation and amortization .................................
Property, plant and equipment, net ...................................................

(b) Depreciation and Amortization

Weighted
Average
Useful Lives

(in years)

32
28
27
26

December 31,

2017

2016

(in millions)

11,496
6,735
102
698
19,031

3,633
1,968
35
338
5,974
13,057

10,840
6,219
83
689
17,831

3,443
1,722
29
330
5,524
12,307

The following table presents depreciation and amortization expense for 2017, 2016 and 2015.

Depreciation expense ...................................................................................... $
Amortization expense .....................................................................................

Total depreciation and amortization expense........................................... $

A reconciliation of the changes in the ARO liability is as follows:

2017

2016

2015

(in millions)

619
417
1,036

607
519
1,126

December 31,

2017

2016

Beginning balance ...................................................................................................................... $
Accretion expense.......................................................................................................................
Revisions in estimates of cash flows ..........................................................................................
Ending balance............................................................................................................................ $

(in millions)
205
8
68
281

557
413
970

195
10
—
205

CenterPoint Energy recorded AROs associated with the removal of asbestos and asbestos-containing material in its buildings,
including substation building structures. CenterPoint Energy also recorded AROs relating to gas pipelines abandoned in place,
treated wood poles for electric distribution, distribution transformers containing PCB (also known as Polychlorinated Biphenyl),
and underground fuel storage tanks. The estimates of future liabilities were developed using historical information, and where
available, quoted prices from outside contractors.

The increase of $68 million in the ARO from the revision in estimates in 2017 is primarily attributable to a decrease in the

long-term discounts rates used in the ARO calculation for CERC.

(4) Acquisition

On January 3, 2017, CES, an indirect, wholly-owned subsidiary of CenterPoint Energy, completed its acquisition of AEM.
After working capital adjustments, the final purchase price was $147 million and was allocated to identifiable assets acquired and
liabilities assumed based on their estimated fair values on the acquisition date.

The following table summarizes the final purchase price allocation and the fair value amounts recognized for the assets

acquired and liabilities assumed related to the acquisition:

(in millions)

Total purchase price consideration ...........
Cash ..........................................................
Receivables ...............................................
Natural gas inventory................................
Derivative assets .......................................
Prepaid expenses and other current assets
Property and equipment............................
Identifiable intangibles .............................
Total assets acquired.................................
Accounts payable......................................
Derivative liabilities..................................
Other current liabilities .............................
Other liabilities .........................................
Total liabilities assumed ...........................
Identifiable net assets acquired.................
Goodwill ...................................................
Net assets acquired ...................................

147

140

306

113

164

142

147

The goodwill of $5 million resulting from the acquisition reflects the excess of the purchase price over the fair value of the
net identifiable assets acquired. The goodwill recorded as part of the acquisition primarily reflects the value of the complementary
operational and geographic footprints, scale and expanded capabilities provided by the acquisition.

Identifiable intangible assets were recorded at estimated fair value as determined by management based on available
information, which included a valuation prepared by an independent third party. The significant assumptions used in arriving at
the estimated identifiable intangible asset values included management’s estimates of future cash flows, the discount rate which
is based on the weighted average cost of capital for comparable publicly traded guideline companies and projected customer
attrition rates. The useful lives for the identifiable intangible assets were determined using methods that approximate the pattern
of economic benefit provided by the utilization of the assets.

The estimated fair value of the identifiable intangible assets and related useful lives as included in the final purchase price

allocation include:

Customer relationships ............................................................

Estimate
Fair Value

Estimate
Useful Life

(in millions)

(in years)

Amortization expense related to the above identifiable intangible assets was $2 million for the year ended December 31, 2017.

Revenues of approximately $1.3 billion and operating income of approximately $74 million attributable to the AEM acquisition
are reported in the Energy Services business segment and included in CenterPoint Energy’s Statements of Consolidated Income
for the year ended December 31, 2017.

The following unaudited pro forma financial information reflects the consolidated results of operations of CenterPoint Energy,
assuming the AEM acquisition had taken place on January 1, 2016. Adjustments to pro forma net income include intercompany
sales, amortization of intangible assets, depreciation of fixed assets, interest expense associated with debt financing to fund the
acquisition, and related income tax effects. The pro forma information does not include the mark-to-market impact of financial
instruments designated as cash flow hedges of anticipated purchases and sales at index prices. The effective portion of these hedges
is excluded from earnings and reported as changes in Other comprehensive income. Additionally, the pro forma information does
not include the mark-to-market impact of physical forward transactions that were previously accounted for as normal purchase
and sale transactions.

The unaudited pro forma financial information has been presented for illustrative purposes only and is not necessarily indicative
of the consolidated results of operations that would have been achieved had the acquisition taken place on the dates indicated or
the future consolidated results of operations of the combined company.

Year Ended December 31,

2017

2016

(in millions)

Operating Revenue....................................................................................................................
Net Income (1) ...........................................................................................................................

9,614

1,792

8,541

442

(1) Net income for the year ended December 31, 2017 includes a reduction in income taxes of $1,113 million due to tax

reform. See Note 14 for further discussion of the impacts of tax reform implementation.

(5) Goodwill and Other Intangibles

Goodwill by reportable business segment as of December 31, 2016 and changes in the carrying amount of goodwill as of

December 31, 2017 are as follows:

December 31,
2016

AEM
Acquisition (1)

December 31,
2017

(in millions)

Natural Gas Distribution........................................................ $
Energy Services .....................................................................
Other Operations ...................................................................

Total..................................................................................... $

746

105 (2)

862

—

746

110 (2)

867

(1) See Note 4.

(2) Amount presented is net of the accumulated goodwill impairment charge of $252 million.

CenterPoint Energy performs goodwill impairment tests at least annually and evaluates goodwill when events or changes in
circumstances indicate that its carrying value may not be recoverable. The impairment evaluation for goodwill is performed by
using a two-step process. In the first step, the fair value of each reporting unit is compared with the carrying amount of the reporting
unit, including goodwill. The estimated fair value of the reporting unit is generally determined on the basis of discounted cash
flows. If the estimated fair value of the reporting unit is less than the carrying amount of the reporting unit, then a second step
must be completed to determine the amount of the goodwill impairment that should be recorded. In the second step, the implied
fair value of the reporting unit’s goodwill is determined by allocating the reporting unit’s fair value to all of its assets and liabilities
other than goodwill (including any unrecognized intangible assets) in a manner similar to a purchase price allocation. The resulting
implied fair value of the goodwill that results from the application of this second step is then compared to the carrying amount of
the goodwill and an impairment charge is recorded for the difference.

CenterPoint Energy performed its annual goodwill impairment test in the third quarter of each of 2017 and 2016 and determined,
based on the results of the first step, that no goodwill impairment charge was required for any reporting unit, which approximate
the reportable segments.

The tables below present information on CenterPoint Energy’s other intangible assets recorded in Other non-current assets

on the Consolidated Balance Sheets.

Customer relationships ....................................
Covenants not to compete ...............................
Other ................................................................
Total...............................................................

Useful Lives

(in years)

Various

Useful Lives

(in years)

4
Various

December 31, 2017

Gross
Carrying
Amount

Accumulated
Amortization

(in millions)

Net Balance

105

(21)
(2)
(8)
(31)

December 31, 2016

Gross
Carrying
Amount

Accumulated
Amortization

(in millions)

Net Balance

4
2

(16)
(1)
(1)
(18)

3
1

Amortization expense of intangible assets was $13 million, $4 million and $2 million in the years ended December 31, 2017,
2016 and 2015, respectively. CenterPoint Energy estimates that amortization expense of intangible assets with finite lives will be
$12 million, $11 million, $6 million, $6 million and $5 million in the years ending December 31, 2018, 2019, 2020, 2021 and
2022, respectively.

(6) Regulatory Accounting

The following is a list of regulatory assets and liabilities reflected on CenterPoint Energy’s Consolidated Balance Sheets as

of December 31, 2017 and 2016:

Current regulatory assets (1) ........................................................................................................ $
Non-current regulatory assets:

Securitized regulatory assets ...................................................................................................
Unrecognized equity return (2) ................................................................................................
Unamortized loss on reacquired debt......................................................................................
Pension and postretirement-related regulatory asset (3) ..........................................................
Hurricane Harvey restoration costs (4) ....................................................................................
Excess deferred income taxes (5) .............................................................................................
Other long-term regulatory assets (6) ......................................................................................
Total non-current regulatory assets......................................................................................
Total regulatory assets......................................................................................................

Current regulatory liabilities (7) ..................................................................................................
Non-current regulatory liabilities:

Excess deferred income taxes (5) .............................................................................................
Estimated removal costs..........................................................................................................
Other long-term regulatory liabilities .....................................................................................
Total non-current regulatory liabilities ................................................................................
Total regulatory liabilities ................................................................................................

December 31,

2017

2016

(in millions)
130

1,590
(287)
75
646
64
48
211
2,347
2,477

1,354
878
232
2,464
2,488

1,919
(329)
84
809
—
—
194
2,677
2,747

—
1,010
288
1,298
1,316

Total regulatory assets and liabilities, net................................................................................... $

(11) $

1,431

(1) Current regulatory assets are included in Prepaid expenses and other current assets in CenterPoint Energy’s Consolidated

Balance Sheets.

(2) The unrecognized allowed equity return will be recognized as it is recovered in rates through 2024. During the years
ended December 31, 2017, 2016 and 2015, Houston Electric recognized approximately $42 million, $64 million and $49
million, respectively, of the allowed equity return. The timing of CenterPoint Energy’s recognition of the allowed equity
return will vary each period based on amounts actually collected during the period. The actual amounts recognized are
adjusted at least annually to correct any over-collections or under-collections during the preceding 12 months.

(3) NGD’s actuarially determined pension and other postemployment expense in excess of the amount being recovered
through rates is being deferred for rate making purposes. Deferred pension and other postemployment expenses of $7
million and $6 million as of December 31, 2017 and 2016, respectively, were not earning a return.

(4) CenterPoint Energy is not earning a return on its Hurricane Harvey restoration costs.

(5) The EDIT will be recovered or refunded to customers as required by tax and regulatory authorities. See Note 14 for

additional information.

(6) Other long-term regulatory assets that are not earning a return were not material as of December 31, 2017 and 2016.

(7) Current regulatory liabilities are included in Other current liabilities in CenterPoint Energy’s Consolidated Balance Sheets.

Hurricane Harvey. Houston Electric’s electric delivery system and CERC Corp.’s NGD suffered damage as a result of
Hurricane Harvey, a major storm classified as a Category 4 hurricane on the Saffir-Simpson Hurricane Wind Scale, that first struck
the Texas coast on Friday, August 25, 2017 and remained over the Houston area for the next several days. The unprecedented
flooding from torrential amounts of rainfall accompanying the storm caused significant damage to or destruction of residences
and businesses served by Houston Electric and NGD.

Houston Electric estimates that total costs to restore the electric delivery facilities damaged as a result of Hurricane Harvey
will be approximately $120 million and estimates that the total restoration costs covered by insurance will be approximately $28
million. NGD estimates that total costs to restore natural gas distribution facilities damaged as a result of Hurricane Harvey will
be approximately $25 million and estimates that the total restoration costs covered by insurance will be approximately $19 million.
Houston Electric and NGD will defer the uninsured storm restoration costs as management believes it is probable that such costs
will be recovered through traditional rate adjustment mechanisms for capital costs and through the next base rate proceeding for
operation and maintenance expenses. As a result, storm restoration costs did not materially affect Houston Electric’s or CERC’s
reported net income for 2017.

As of December 31, 2017, Houston Electric and NGD recorded the following:

Houston Electric

NGD

Property, plant and equipment.............................
Insurance proceeds received................................
Insurance receivable ............................................
Net property, plant and equipment ..................

Operation and maintenance expense ...................
Insurance proceeds received................................
Insurance receivable ............................................
Net regulatory asset .........................................

(in millions)

42
(11)
—

75
(3)
(14)
58

—
(5)
—

—
(4)
6

(7) Stock-Based Incentive Compensation Plans and Employee Benefit Plans

(a) Stock-Based Incentive Compensation Plans

CenterPoint Energy has LTIPs that provide for the issuance of stock-based incentives, including stock options, performance
awards, restricted stock unit awards and restricted and unrestricted stock awards to officers, employees and non-employee directors.
Approximately 14 million shares of CenterPoint Energy common stock are authorized under these plans for awards.

Equity awards are granted to employees without cost to the participants. The performance awards granted in 2017, 2016 and
2015 are distributed based upon the achievement of certain objectives over a three-year performance cycle. The stock awards
granted in 2017, 2016 and 2015 are service based. The stock awards generally vest at the end of a three-year period. Upon vesting,
both the performance and stock awards are issued to the participants along with the value of dividend equivalents earned over the
performance cycle or vesting period. CenterPoint Energy issues new shares to satisfy stock-based payments related to LTIPs.

CenterPoint Energy recorded LTIP compensation expense of $21 million, $19 million and $17 million for the years ended
December 31, 2017, 2016 and 2015, respectively. This expense is included in Operation and Maintenance Expense in the
Statements of Consolidated Income.

The total income tax benefit recognized related to LTIPs was $8 million, $7 million and $6 million for the years ended
December 31, 2017, 2016 and 2015, respectively. No compensation cost related to LTIPs was capitalized as a part of inventory
or fixed assets in 2017, 2016 or 2015. The actual tax benefit realized for tax deductions related to LTIPs totaled $6 million, $5
million and $6 million for 2017, 2016 and 2015, respectively.

Compensation costs for the performance and stock awards granted under LTIPs are measured using fair value and expected
achievement levels on the grant date. For performance awards with operational goals, the achievement levels are revised as goals
are evaluated. The fair value of awards granted to employees is based on the closing stock price of CenterPoint Energy’s common

stock on the grant date. The compensation expense is recorded on a straight-line basis over the vesting period. Forfeitures are
estimated on the date of grant based on historical averages and estimates are updated periodically throughout the vesting period.

The following tables summarize CenterPoint Energy’s LTIP activity for 2017:

Performance Awards

Outstanding as of December 31, 2016.............................................
Granted ..........................................................................................
Forfeited or canceled .....................................................................
Vested and released to participants................................................
Outstanding as of December 31, 2017.............................................

Shares
(Thousands)
3,423
1,263
(846)
(213)
3,627

Outstanding and Non-Vested Shares

Year Ended December 31, 2017

Weighted-
Average
Grant Date
Fair Value

Remaining
Average
Contractual
Life (Years)

Aggregate
Intrinsic
Value
(Millions)

20.90
26.64
23.38
23.68
22.15

The outstanding and non-vested shares displayed in the table above assumes that shares are issued at the maximum performance

level. The aggregate intrinsic value reflects the impact of current expectations of achievement and stock price.

Stock Awards

Shares
(Thousands)
920
414
(47)
(307)
980

Outstanding and Non-Vested Shares

Year Ended December 31, 2017

Weighted-
Average
Grant Date
Fair Value

Remaining
Average
Contractual
Life (Years)

Aggregate
Intrinsic
Value
(Millions)

20.74
26.77
22.25
22.46
22.68

1.2

The weighted-average grant-date fair values per unit of awards granted were as follows for 2017, 2016 and 2015:

Performance awards................................................................................................... $
Stock awards ..............................................................................................................

26.64
26.77

18.98
19.24

21.28
21.39

Year Ended December 31,

2017

2016

2015

Valuation Data

The total intrinsic value of awards received by participants was as follows for 2017, 2016 and 2015:

Year Ended December 31,

2017

2016

2015

(in millions)
7
$
6

7
9

9
7

The total grant date fair value of performance and stock awards which vested during the years ended December 31, 2017,
2016 and 2015 was $12 million, $13 million and $13 million, respectively. As of December 31, 2017, there was $24 million of
total unrecognized compensation cost related to non-vested performance and stock awards which is expected to be recognized
over a weighted-average period of 1.7 years.

(b) Pension and Postretirement Benefits

CenterPoint Energy maintains a non-contributory qualified defined benefit pension plan covering substantially all employees,
with benefits determined using a cash balance formula. Under the cash balance formula, participants accumulate a retirement
benefit based upon 5% of eligible earnings and accrued interest. Participants are 100% vested in their benefit after completing
three years of service. In addition to the non-contributory qualified defined benefit pension plan, CenterPoint Energy maintains
unfunded non-qualified benefit restoration plans which allow participants to receive the benefits to which they would have been
entitled under CenterPoint Energy’s non-contributory qualified pension plan except for federally mandated limits on qualified
plan benefits or on the level of compensation on which qualified plan benefits may be calculated.

CenterPoint Energy provides certain healthcare and life insurance benefits for retired employees on both a contributory and
non-contributory basis. Employees hired before January 1, 2018 become eligible for these benefits if they have met certain age
and service requirements at retirement, as defined in the plans. Employees hired on or after January 1, 2018 are not eligible for
these benefits, except for those employees represented by IBEW. Benefit costs are accrued over the active service period of
employees. Effective January 1, 2017, members of the IBEW Local Union 66 who retire on or after January 1, 2017, and their
dependents, will receive any retiree medical and prescription drug benefits exclusively through the NECA/IBEW Family Medical
Care Plan pursuant to the terms of the renegotiated collective bargaining agreement entered into in May 2016.

CenterPoint Energy’s net periodic cost includes the following components relating to pension, including the benefit restoration

plan, and postretirement benefits:

Year Ended December 31,

2017

2016

2015

Pension
Benefits

Post-
retirement
Benefits

Pension
Benefits

Post-
retirement
Benefits

Pension
Benefits

Post-
retirement
Benefits

Service cost .................................................................. $
Interest cost ..................................................................
Expected return on plan assets .....................................
Amortization of prior service cost (credit) ...................
Amortization of net loss ...............................................
Curtailment (1) ..............................................................
Settlement (2) ................................................................
Net periodic cost........................................................... $

36
89
(97)
9
58
—
—
95

2
16
(5)
(5)
—
—
—
8

(in millions)

38
93
(101)
9
63
—
—
102

2
16
(6)
(3)
1
(5)
—
5

41
93
(120)
9
57
—
10
90

2
20
(7)
(1)
5
—
—
19

(1) A curtailment gain or loss is required when the expected future services of a significant number of current employees are
reduced or eliminated for the accrual of benefits. During 2016, postretirement healthcare benefits were amended resulting
in a net curtailment gain of $5 million. In May 2016, Houston Electric entered into a renegotiated collective bargaining
agreement with the IBEW Local Union 66 that provides that for Houston Electric union employees covered under the
agreement who retire on or after January 1, 2017, retiree medical and prescription drug coverage will be provided
exclusively through the NECA/IBEW Family Medical Care Plan in exchange for the payment of monthly premiums as
determined under the agreement. As a result, the accrued postretirement benefits related to such future Houston Electric
union retirees were eliminated. Houston Electric recognized a curtailment gain of $3 million as an accelerated recognition
of the prior service credit that would otherwise be recognized in future periods for the postretirement plan. CenterPoint
Energy also recognized an additional curtailment gain of $2 million in October 2016 related to other amendments in the
postretirement plan. As a result of these amendments, the 2016 postretirement expense was significantly lower than
expenses reported for previous years.

(2) A one-time, non-cash settlement charge is required when lump sum distributions or other settlements of plan benefit
obligations during a plan year exceed the service cost and interest cost components of net periodic cost for that year. Due
to the amount of lump sum payment distributions from the non-qualified pension plan during the year ended December
31, 2015, CenterPoint Energy recognized a non-cash settlement charge of $10 million. This charge is an acceleration of
costs that would otherwise be recognized in future periods.

CenterPoint Energy used the following assumptions to determine net periodic cost relating to pension and postretirement

benefits:

Year Ended December 31,

2017

2016

2015

Pension
Benefits

Post-
retirement
Benefits

Pension
Benefits

Post-
retirement
Benefits

Pension
Benefits

Post-
retirement
Benefits

Discount rate ................................................................
Expected return on plan assets .....................................
Rate of increase in compensation levels ......................

4.15%
6.00
4.50

4.15%
4.50
—

4.40%
6.25
4.15

4.35%
4.80
—

4.05%
6.50
4.00

3.90%
5.20
—

In determining net periodic benefits cost, CenterPoint Energy uses fair value, as of the beginning of the year, as its basis for

determining expected return on plan assets.

The following table summarizes changes in the benefit obligation, plan assets, the amounts recognized in consolidated balance
sheets and the key assumptions of CenterPoint Energy’s pension, including benefit restoration, and postretirement plans. The
measurement dates for plan assets and obligations were December 31, 2017 and 2016.

December 31,

2017

2016

Pension
Benefits

Post-
retirement
Benefits

Pension
Benefits

Post-
retirement
Benefits

(in millions, except for actuarial assumptions)

—

—
(168)
71

Change in Benefit Obligation
Benefit obligation, beginning of year ................................................................... $ 2,197
Service cost ...........................................................................................................
36
Interest cost ...........................................................................................................
Participant contributions .......................................................................................
Benefits paid .........................................................................................................
Actuarial loss.........................................................................................................
Medicare reimbursement.......................................................................................
Plan amendment (1) ...............................................................................................
Benefit obligation, end of year..............................................................................
Change in Plan Assets
Fair value of plan assets, beginning of year..........................................................
Employer contributions.........................................................................................
Participant contributions .......................................................................................
Benefits paid .........................................................................................................
Plan amendment (2) ...............................................................................................
Actual investment return .......................................................................................
Fair value of plan assets, end of year ....................................................................
1,801
Funded status, end of year..................................................................................... $ (424)
Amounts Recognized in Balance Sheets
(7)
Current liabilities-other ......................................................................................... $
(417)
Other liabilities-benefit obligations ......................................................................
Net liability, end of year........................................................................................ $ (424)

—
(168)
—

2,225

1,656

265

—

383

$ 2,193

432

7
(26)
4

—

386

113

7
(26)
—

—
(181)
54

—

2,197

1,679

—
(181)
—

149

10
(37)
13

3
(56)
383

136

10
(37)
(20)
6

120
$ (266)

1,656
$ (541)

113
$ (270)

(6)
(260)
$ (266)

(7)
(534)
$ (541)

(6)
(264)
$ (270)

Actuarial Assumptions
Discount rate .........................................................................................................
Expected return on plan assets ..............................................................................
Rate of increase in compensation levels ...............................................................
Medical cost trend rate assumed for the next year - Pre-65..................................
Medical/prescription drug cost trend rate assumed for the next year - Post-65....
Prescription drug cost trend rate assumed for the next year - Pre-65 ...................
Rate to which the cost trend rate is assumed to decline (the ultimate trend rate) .
Year that the cost trend rates reach the ultimate trend rate - Pre-65 .....................
Year that the cost trend rates reach the ultimate trend rate - Post-65....................

December 31,

2017

2016

Pension
Benefits

Post-
retirement
Benefits

Pension
Benefits

Post-
retirement
Benefits

3.65%

3.60%

4.15%

6.00

4.45

—

4.55

—

6.15

23.85

9.85

4.50

2026

2024

6.00

4.50

—

4.50

—

5.75

10.65

10.75

4.50

2024

(1) The postretirement benefits were amended during 2016 to change retiree medical coverage, effective January 1, 2017,
as follows: (i) members of the IBEW Local Union 66 who retire on or after January 1, 2017, and their dependents, will
receive any retiree medical and prescription drug coverage exclusively through the NECA/IBEW Family Medical Care
Plan pursuant to the terms of the renegotiated collective bargaining agreement entered into in May 2016; and (ii) Medicare
eligible post-65 retirees will receive coverage through a Medicare Advantage Program, an insured benefit, in lieu of the
previous self-insured benefit. These changes resulted in a reduction in our postretirement plan liability of $56 million
as of December 31, 2016.

(2) In May 2016, Houston Electric entered into a renegotiated collective bargaining agreement with the IBEW Local Union
66. The Houston Lighting & Power Company Union Retirees’ Medical and Dental Benefits Trust was amended to reflect
the renegotiated collective bargaining agreement by establishing a segregated and restricted account under the trust for
the retiree medical benefits of post-2016 union retirees who are now covered exclusively by the NECA/IBEW Family
Medical Care Plan. $20 million was transferred to the account for post-2016 union retirees.

The accumulated benefit obligation for all defined benefit pension plans was $2,164 million and $2,168 million as of

December 31, 2017 and 2016, respectively.

The expected rate of return assumption was developed using the targeted asset allocation of CenterPoint Energy’s plans and

the expected return for each asset class.

The discount rate assumption was determined by matching the projected cash flows of CenterPoint Energy’s plans against a
hypothetical yield curve of high-quality corporate bonds represented by a series of annualized individual discount rates from one-
half to 99 years.

For measurement purposes, medical and prescription drug costs are assumed to increase to 6.15% and 9.85%, respectively,
for the pre-65 retirees, and the combined medical/prescription drug cost increase is assumed to be 23.85% for the post-65 retirees
during 2018, after which these rates decrease until reaching the ultimate trend rate of 4.50% in 2026 and 2024 for the pre-65 and
post-65 retirees, respectively.

CenterPoint Energy’s changes in accumulated comprehensive loss related to defined benefit, postretirement and other

postemployment plans are as follows:

Beginning Balance...................................................................................................... $
Other comprehensive income (loss) before reclassifications (1) .................................
Amounts reclassified from accumulated other comprehensive income:

Prior service cost (2) ................................................................................................
Actuarial losses (2) ...................................................................................................
Total reclassifications from accumulated other comprehensive income ....................
Tax benefit (expense)..................................................................................................
Net current period other comprehensive income (loss)..............................................
Ending Balance........................................................................................................... $

Year Ended December 31,

2017

2016

(in millions)
(72) $
4

1
7
8
(6)
6
(66) $

(65)
(19)

—
8
8
4
(7)
(72)

(1) Total other comprehensive income (loss) related to the remeasurement of pension, postretirement and other

postemployment plans.

(2) These accumulated other comprehensive components are included in the computation of net periodic cost.

Amounts recognized in accumulated other comprehensive loss consist of the following:

December 31,

2017

2016

Pension
Benefits

Postretirement
Benefits

Pension
Benefits

Postretirement
Benefits

Unrecognized actuarial loss (gain) ...................................... $
Unrecognized prior service cost ..........................................
Net amount recognized in accumulated other

comprehensive loss (gain)................................................ $

(in millions)
(8) $
6

100

(2) $

102

The changes in plan assets and benefit obligations recognized in other comprehensive income during 2017 are as follows:

Net loss (gain)............................................................................................................................. $
Amortization of net loss..............................................................................................................
Amortization of prior service cost ..............................................................................................
Total recognized in comprehensive income ............................................................................... $

Pension
Benefits

Postretirement
Benefits

(in millions)

1
(7)
(1)
(7) $

(10)
—
(1)
(11)

The total expense recognized in net periodic costs and other comprehensive income was $88 million and $(3) million for

pension and postretirement benefits, respectively, for the year ended December 31, 2017.

The amounts in accumulated other comprehensive loss expected to be recognized as components of net periodic benefit cost

during 2018 are as follows:

Unrecognized actuarial loss .......................................................................................................... $
Unrecognized prior service cost....................................................................................................
Amounts in accumulated comprehensive loss to be recognized in net periodic cost in 2018 (1) . $

Pension
Benefits

Postretirement
Benefits

(in millions)

—

(1) Upon adoption of ASU 2017-07 on January 1, 2018, these amounts will be recognized as Other Income (Expense) in

CenterPoint Energy’s Statements of Consolidated Income.

The following table displays pension benefits related to CenterPoint Energy’s pension plans that have accumulated benefit

obligations in excess of plan assets:

December 31,

2017

2016

Pension
Qualified

Pension
Non-qualified

Pension
Qualified

Pension
Non-qualified

Accumulated benefit obligation .......................................... $
Projected benefit obligation.................................................
Fair value of plan assets ......................................................

2,090
2,151
1,801

(in millions)

74
74
—

2,097
2,126
1,656

71
71
—

Assumed healthcare cost trend rates have a significant effect on the reported amounts for CenterPoint Energy’s postretirement

benefit plans. A 1% change in the assumed healthcare cost trend rate would have the following effects:

Effect on postretirement benefit obligation ................................................................................ $
Effect on total of service and interest cost..................................................................................

1%
Increase

1%
Decrease

(in millions)

12
—

11
—

In managing the investments associated with the benefit plans, CenterPoint Energy’s objective is to achieve and maintain a
fully funded plan. This objective is expected to be achieved through an investment strategy that manages liquidity requirements
while maintaining a long-term horizon in making investment decisions and efficient and effective management of plan assets.

As part of the investment strategy discussed above, CenterPoint Energy maintained the following weighted average allocation

targets for its benefit plans as of December 31, 2017:

U.S. equity ...............................................................................
International developed market equity ....................................
Emerging market equity ..........................................................
Fixed income ...........................................................................
Cash .........................................................................................

Pension
Benefits
12 – 28%
7 – 17%
3 – 13%
54 – 66%
0 – 2%

Postretirement
Benefits
13 – 23%
3 – 13%
—
69 – 79%
0 – 2%

The following tables set forth by level, within the fair value hierarchy (see Note 9), CenterPoint Energy’s pension plan assets

at fair value as of December 31, 2017 and 2016:

Fair Value Measurements as of December 31, 2017

Quoted Prices in
Active Markets
for
Identical Assets
(Level 1)

Significant
Observable
Inputs
(Level 2)

Significant
Unobservable
Inputs
(Level 3) (3)

Total

Cash ..................................................................................... $
Corporate bonds:

Investment grade or above ................................................

Equity securities:

U.S. companies .................................................................
Cash received as collateral from securities lending ............
U.S. treasuries......................................................................
Mortgage backed securities .................................................
Asset backed securities........................................................
Municipal bonds ..................................................................
Mutual funds (1) ...................................................................
International government bonds ..........................................
Obligation to return cash received as collateral from

securities lending .............................................................
Total investments at fair value............................................. $
Investments measured by net asset value per share or its
equivalent (2) ........................................................................
Total Investments...............................................................

(in millions)
— $

— $

—

76
76
67
—
—
—
211
—

432

—
—
—
8
1
47
—
17

—

—
—
—
—
—
—
—
—

432

76
76
67
8
1
47
211
17

(76)
372

—
505

—
— $

(76)
877

924
1,801

(1) 57% of the amount invested in mutual funds was in international equities, 30% was in emerging market equities and 13%

was in U.S. equities.

(2) This represents the common collective trust funds with 55% of the amount invested in fixed income securities, 6% in

U.S. equities, 34% in international equities and 5% in emerging market equities.

(3) The changes in the fair value of the pension plan’s Level 3 investments for the year ended December 31, 2017 were not

material.

Fair Value Measurements as of December 31, 2016

Quoted Prices in
Active Markets
for
Identical Assets
(Level 1)

Significant
Observable
Inputs
(Level 2)

Significant
Unobservable
Inputs
(Level 3) (3)

Total

Cash ..................................................................................... $
Corporate bonds:

Investment grade or above ................................................

Equity securities:

(in millions)
— $

— $

—

73
69
49
—
—
—
171
—

401

—
—
—
3
2
52
—
16

—

—
—
—
—
—
—
—
—

401

73
69
49
3
2
52
171
16

(69)
307

—
474

—
— $

(69)
781

875
1,656

(1) 57% of the amount invested in mutual funds was in international equities, 28% was in emerging market equities and 15%

was in U.S. equities.

(2) This represents the common collective trust funds with 53% of the amount invested in fixed income securities, 12% in

U.S. equities, 30% in international equities and 5% in emerging market equities.

(3) The changes in the fair value of the pension plan’s Level 3 investments for the year ended December 31, 2016 were not

material.

The pension plan utilized both exchange traded and over-the-counter financial instruments such as futures, interest rate options
and swaps that were marked to market daily with the gains/losses settled in the cash accounts. The pension plan did not include
any holdings of CenterPoint Energy common stock as of December 31, 2017 or 2016.

The following tables present by level, within the fair value hierarchy, CenterPoint Energy’s postretirement plan assets at fair

value as of December 31, 2017 and 2016, by asset category:

Fair Value Measurements as of December 31, 2017

Quoted Prices
in Active
Markets for
Identical Assets
(Level 1)

Significant
Observable
Inputs
(Level 2)

Significant
Unobservable
Inputs
(Level 3)

Total

Mutual funds (1) ................................................................... $
Total ..................................................................................... $

120
120

$
$

(in millions)
— $
— $

— $
— $

120
120

(1) 74% of the amount invested in mutual funds was in fixed income securities, 18% was in U.S. equities and 8% was in

international equities.

Fair Value Measurements as of December 31, 2016

Quoted Prices
in Active
Markets for
Identical Assets
(Level 1)

Significant
Observable
Inputs
(Level 2)

Significant
Unobservable
Inputs
(Level 3)

Total

Mutual funds (1) ................................................................... $
Total ..................................................................................... $

113
113

$
$

(in millions)
— $
— $

— $
— $

113
113

(1) 74% of the amount invested in mutual funds was in fixed income securities, 18% was in U.S. equities and 8% was in

international equities.

CenterPoint Energy contributed $39 million, $9 million and $16 million to its qualified pension, non-qualified pension and
postretirement benefits plans, respectively, in 2017. CenterPoint Energy expects to contribute a minimum of approximately $60
million, $7 million and $16 million to its qualified pension, non-qualified pension and postretirement benefits plans, respectively,
in 2018.

The following benefit payments are expected to be paid by the pension and postretirement benefit plans:

2018....................................................................................................................................... $
2019.......................................................................................................................................
2020.......................................................................................................................................
2021.......................................................................................................................................
2022.......................................................................................................................................
2023-2027 .............................................................................................................................

Pension
Benefits

Postretirement
Benefit
Payments

(in millions)
144
147
153
156
158
774

19
21
24
27
29
145

CenterPoint Energy has a tax-qualified employee savings plan that includes a cash or deferred arrangement under
Section 401(k) of the Internal Revenue Code of 1986, as amended (the Code), and an employee stock ownership plan under
Section 4975(e)(7) of the Code. Under the plan, participating employees may make pre-tax or Roth contributions up to 50%, and
after tax contributions up to 16%, of their eligible compensation, not to exceed certain federally mandated limits. CenterPoint
Energy matches 100% of the first 6% of each employee’s compensation contributed. The matching contributions are fully vested
at all times.

Prior to January 1, 2016, participating employees could elect to invest all or a portion of their contributions to the plan in
CenterPoint Energy, Inc. common stock, to have dividends reinvested in additional shares or to receive dividend payments in cash
on any investment in CenterPoint Energy, Inc. common stock, and to transfer all or part of their investment in CenterPoint Energy,
Inc. common stock to other investment options offered by the plan.

Effective January 1, 2016, the savings plan was amended to limit the percentage of future contributions that could be invested
in CenterPoint Energy, Inc. common stock to 25% and to prohibit transfers of account balances where the transfer would result
in more than 25% of a participant’s total account balance invested in CenterPoint Energy, Inc. common stock.

The savings plan has significant holdings of CenterPoint Energy, Inc. common stock. As of December 31, 2017, 12,806,085
shares of CenterPoint Energy, Inc. common stock were held by the savings plan, which represented approximately 16% of its
investments. Given the concentration of the investments in CenterPoint Energy, Inc. common stock, the savings plan and its
participants have market risk related to this investment.

CenterPoint Energy’s savings plan benefit expenses were $41 million, $38 million and $35 million in 2017, 2016 and 2015,

respectively.

100

(d) Postemployment Benefits

CenterPoint Energy provides postemployment benefits for certain former or inactive employees, their beneficiaries and covered
dependents, after employment but before retirement (primarily healthcare and life insurance benefits for participants in the long-
term disability plan). CenterPoint Energy recorded postemployment expenses of $6 million, $5 million and $2 million in 2017,
2016 and 2015, respectively.

Included in Benefit Obligations in the accompanying Consolidated Balance Sheets as of December 31, 2017 and 2016 was

$20 million and $22 million, respectively, relating to postemployment obligations.

(e) Other Non-Qualified Plans

CenterPoint Energy has non-qualified deferred compensation plans that provide benefits payable to directors, officers and
certain key employees or their designated beneficiaries at specified future dates or upon termination, retirement or death. Benefit
payments are made from the general assets of CenterPoint Energy. CenterPoint Energy recorded benefit expense relating to these
plans of $3 million for each of the years in 2017, 2016 and 2015. Included in Benefit Obligations in the accompanying Consolidated
Balance Sheets as of December 31, 2017 and 2016 was $45 million and $47 million, respectively, relating to deferred compensation
plans.

Included in Benefit Obligations in CenterPoint Energy’s Consolidated Balance Sheets as of December 31, 2017 and 2016

was $39 million and $40 million, respectively, relating to split-dollar life insurance arrangements.

(f) Change in Control Agreements and Other Employee Matters

CenterPoint Energy has a change in control plan, which was effective January 1, 2015. The plan generally provides, to the
extent applicable, in the case of a change in control of CenterPoint Energy and termination of employment, for severance benefits
of up to three times annual base salary plus bonus, and other benefits. Our officers, including our Executive Chairman, are
participants under the plan.

As of December 31, 2017, approximately 35% of CenterPoint Energy’s employees were covered by collective bargaining
agreements. The collective bargaining agreement with the IBEW Local 66 and the two collective bargaining agreements with
Professional Employees International Union Local 12, covering approximately 21% of CenterPoint Energy’s employees, will
expire in May of 2020 and March and May of 2021, respectively. These three agreements were last negotiated in 2016.

The collective bargaining agreements with Gas Workers Union, Local 340 and the IBEW Local 949, covering approximately
8% of CenterPoint Energy’s employees, will expire in April and December of 2020, respectively. These two agreements were last
negotiated in 2015.

The two collective bargaining agreements with the United Steelworkers Union, Locals 13-227 and 13-1, which cover
approximately 5% of CenterPoint Energy’s employees, were successfully negotiated in 2017. The new agreements will expire in
June and July of 2022 for the Local 13-227 and Local 13-1, respectively.

(8) Derivative Instruments

(a) Non-Trading Activities

Derivative Instruments. CenterPoint Energy enters into certain derivative instruments to mitigate the effects of commodity
price movements. Certain financial instruments used to hedge portions of the natural gas inventory of the Energy Services business
segment are designated as fair value hedges for accounting purposes. All other financial instruments do not qualify or are not
designated as cash flow or fair value hedges.

Weather Hedges. CenterPoint Energy has weather normalization or other rate mechanisms that mitigate the impact of weather
on NGD in Arkansas, Louisiana, Mississippi, Minnesota and Oklahoma. NGD and electric operations in Texas do not have such
mechanisms, although fixed customer charges are historically higher in Texas for NGD compared to CenterPoint Energy’s other

101

jurisdictions. As a result, fluctuations from normal weather may have a positive or negative effect on NGD’s results in Texas and
on Houston Electric’s results in its service territory.

CenterPoint Energy entered into heating-degree day swaps for certain NGD jurisdictions to mitigate the effect of fluctuations
from normal weather on its results of operations and cash flows for the 2014-2015 winter heating season, which contained a
bilateral dollar cap of $16 million. However, CenterPoint Energy did not enter into heating-degree day swaps for NGD jurisdictions
for the 2015–2016 or 2016–2017 winter heating seasons. CenterPoint Energy entered into heating-degree day swaps for certain
NGD Texas jurisdictions for the 2017–2018 winter heating season, which contained a bilateral dollar cap of $8 million. CenterPoint
Energy entered into weather hedges for the Houston Electric service territory to mitigate the effect of fluctuations from normal
weather on its results of operations and cash flows, which contained bilateral dollar caps of $7 million, $9 million and $9 million
for the 2015–2016, 2016–2017 and 2017–2018 winter seasons, respectively. The swaps are based on 10-year normal weather.
During the years ended December 31, 2017, 2016 and 2015, CenterPoint Energy recognized a loss of $1 million, gain of $1 million
and a loss of $6 million, respectively, related to these swaps. Weather hedge gains and losses are included in revenues in the
Statements of Consolidated Income.

Hedging of Interest Expense for Future Debt Issuances. In January 2017, Houston Electric entered into forward interest rate
agreements with multiple counterparties, having an aggregate notional amount of $150 million. These agreements were executed
to hedge, in part, volatility in the 10-year U.S. treasury rate by reducing Houston Electric’s exposure to variability in cash flows
related to interest payments of Houston Electric’s $300 million issuance of fixed rate debt in January 2017. These forward interest
rate agreements were designated as cash flow hedges. Accordingly, the effective portion of realized losses associated with the
agreements, which totaled approximately $1 million, is a component of accumulated other comprehensive income in 2017 and
will be amortized over the life of the bonds.

In 2017, CenterPoint Energy entered into forward interest rate agreements with multiple counterparties, having an aggregate
notional amount of $350 million. These agreements were executed to hedge, in part, volatility in the 5-year U.S. treasury rate by
reducing CenterPoint Energy’s exposure to variability in cash flows relating to interest payments of CenterPoint Energy’s $500
million issuance of fixed rate debt in August 2017. These forward interest rate agreements were designated as cash flow hedges.
Accordingly, the effective portion of realized losses associated with the agreements, which totaled approximately $3 million, is a
component of accumulated other comprehensive income in 2017 and will be amortized over the life of the fixed rate debt.

In August 2017, CERC Corp. entered into forward interest rate agreements with multiple counterparties, having an aggregate
notional amount of $150 million. These agreements were executed to hedge, in part, volatility in the 30-year U.S. treasury rate by
reducing CERC Corp.’s exposure to variability in cash flows related to interest payments of CERC Corp.’s $300 million issuance
of fixed rate debt in August 2017. These forward interest rate agreements were designated as cash flow hedges. Accordingly, the
effective portion of realized losses associated with the agreements, which totaled approximately $2 million, is a component of
accumulated other comprehensive income in 2017 and will be amortized over the life of the fixed rate debt.

As of December 31, 2017, none of CenterPoint Energy, Houston Electric or CERC Corp. had any pre-issuance interest rate

hedges in place.

In January and February 2018, Houston Electric entered into forward interest rate agreements with multiple counterparties,
having an aggregate notional amount of $200 million. These agreements were executed to hedge, in part, volatility in the 30-year
U.S. treasury rate by reducing Houston Electric’s exposure to variability in cash flows related to interest payments on a forecasted
issuance of fixed rate debt in 2018. These forward interest rate agreements were designated as cash flow hedges. Accordingly, the
effective portion of unrealized gains and losses associated with the forward interest rate agreements will be recorded as a component
of accumulated other comprehensive income and the ineffective portion, if any, will be recorded in income.

102

(b) Derivative Fair Values and Income Statement Impacts

The following tables present information about CenterPoint Energy’s derivative instruments and hedging activities. The first
four tables provide a balance sheet overview of CenterPoint Energy’s Derivative Assets and Liabilities as of December 31, 2017
and 2016, while the last table provides a breakdown of the related income statement impacts for the years ending December 31,
2017, 2016 and 2015.

Fair Value of Derivative Instruments

December 31, 2017

Derivatives designated
as fair value hedges:

Balance Sheet
Location

Derivative
Assets
Fair Value

Derivative
Liabilities
Fair Value

Natural gas derivatives (1) (2) (3) ...... Current Liabilities: Non-trading derivative liabilities ..

Derivatives not designated
as hedging instruments:

Natural gas derivatives (1) (2) (3) ...... Current Assets: Non-trading derivative assets..............
Natural gas derivatives (1) (2) (3) ...... Other Assets: Non-trading derivative assets.................
Natural gas derivatives (1) (2) (3) ...... Current Liabilities: Non-trading derivative liabilities ..
Natural gas derivatives (1) (2) (3) ...... Other Liabilities: Non-trading derivative liabilities .....
Indexed debt securities derivative .. Current Liabilities.........................................................
Total....................................................................................................................................

(in millions)

114

38
9

—

78
24

668

775

218

(1) The fair value shown for natural gas contracts is comprised of derivative gross volumes totaling 1,795 Bcf or a net 224 Bcf

long position. Certain natural gas contracts hedge basis risk only and lack a fixed price exposure.

(2) Natural gas contracts are presented on a net basis in the Consolidated Balance Sheets as they are subject to master netting
arrangements. This netting applies to all undisputed amounts due or past due and causes derivative assets (liabilities) to
be ultimately presented net in a liability (asset) account within the Consolidated Balance Sheets. The net of total non-
trading natural gas derivative assets and liabilities was a $130 million asset as shown on CenterPoint Energy’s Consolidated
Balance Sheets (and as detailed in the table below), and was comprised of the natural gas contracts derivative assets and
liabilities separately shown above, impacted by collateral netting of $19 million.

(3) Derivative Assets and Derivative Liabilities include no material amounts related to physical forward transactions with

Enable.

Offsetting of Natural Gas Derivative Assets and Liabilities

December 31, 2017

Gross Amounts
Recognized (1)

Gross Amounts Offset
in the Consolidated
Balance Sheets

Net Amount Presented
in the Consolidated
Balance Sheets (2)

(in millions)

Current Assets: Non-trading derivative assets.....................
Other Assets: Non-trading derivative assets........................
Current Liabilities: Non-trading derivative liabilities .........
Other Liabilities: Non-trading derivative liabilities ............
Total .....................................................................................

165

53
(83)
(24)
111

(55) $
(9)
63

110

44
(20)
(4)
130

(1) Gross amounts recognized include some derivative assets and liabilities that are not subject to master netting arrangements.

(2) The derivative assets and liabilities on the Consolidated Balance Sheets exclude accounts receivable or accounts payable

that, should they exist, could be used as offsets to these balances in the event of a default.

103

Fair Value of Derivative Instruments

December 31, 2016

Total derivatives not designated
as hedging instruments

Balance Sheet
Location

Derivative
Assets
Fair Value

Derivative
Liabilities
Fair Value

(in millions)

79
24
2
—
—
105

14
5
43
5
717
784

(1) The fair value shown for natural gas contracts is comprised of derivative gross volumes totaling 1,035 Bcf or a net 59 Bcf

long position. Certain natural gas contracts hedge basis risk only and lack a fixed price exposure.

(2) Natural gas contracts are presented on a net basis in the Consolidated Balance Sheets. Natural gas contracts are subject
to master netting arrangements. This netting applies to all undisputed amounts due or past due and causes derivative
assets (liabilities) to be ultimately presented net in a liability (asset) account within the Consolidated Balance Sheets.
The net of total non-trading derivative assets and liabilities was a $24 million asset as shown on CenterPoint Energy’s
Consolidated Balance Sheets (and as detailed in the table below), and was comprised of the natural gas contracts derivative
assets and liabilities separately shown above, impacted by collateral netting of $14 million.

(3) Derivative Assets and Derivative Liabilities include no material amounts related to physical forward transactions with

Enable.

Offsetting of Natural Gas Derivative Assets and Liabilities

December 31, 2016

Gross Amounts
Recognized (1)

Gross Amounts Offset
in the Consolidated
Balance Sheets

Net Amount Presented
in the Consolidated
Balance Sheets (2)

(in millions)

24
(57)
(10)
38

(30) $
(5)
16

5
(14) $

19
(41)
(5)
24

(1) Gross amounts recognized include some derivative assets and liabilities that are not subject to master netting arrangements.

(2) The derivative assets and liabilities on the Consolidated Balance Sheets exclude accounts receivable or accounts payable

that, should they exist, could be used as offsets to these balances in the event of a default.

Realized and unrealized gains and losses on natural gas derivatives are recognized in the Statements of Consolidated Income
as revenue for physical sales derivative contracts and as natural gas expense for financial natural gas derivatives and physical
purchase natural gas derivatives. Realized and unrealized gains and losses on indexed debt securities are recorded as Other Income
(Expense) in the Statements of Consolidated Income.

Hedge ineffectiveness is recorded as a component of natural gas expense and primarily results from differences in the location
of the derivative instrument and the hedged item. Basis ineffectiveness arises from natural gas market price differences between
the locations of the hedged inventory and the delivery location specified in the hedge instruments. The impact of natural gas
derivatives designated as fair value hedges, the related hedged item, and natural gas derivatives not designated as hedging
instruments are presented in the table below.

104

Income Statement Impact of Derivative Activity

Income Statement Location

2017

2016

2015

Year Ended December 31,

Derivatives designated as fair value hedges:

Natural gas derivatives ..................... Gains (Losses) in Expenses: Natural Gas ...
Fair value adjustments for natural
gas inventory designated as the
hedged item................................... Gains (Losses) in Expenses: Natural Gas ...
Total increase in Expenses: Natural Gas (1) .......................................................

Derivatives not designated as hedging
instruments:

Natural gas derivatives ..................... Gains (Losses) in Revenues ........................
Natural gas derivatives ..................... Gains (Losses) in Expenses: Natural Gas ...
Indexed debt securities derivative .... Gains (Losses) in Other Income (Expense)
Total - derivatives not designated as hedging instruments.................................

211
(72)
49

188

(in millions)

(9) $

— $

—

— $

(18) $
70
(413)
(361) $

134
(105)
74

103

(1) Hedge ineffectiveness results from the basis ineffectiveness discussed above, and excludes the impact to natural gas
expense from timing ineffectiveness. Timing ineffectiveness arises due to changes in the difference between the spot
price and the futures price, as well as the difference between the timing of the settlement of the futures and the valuation
of the underlying physical commodity. As the commodity contract nears the settlement date, spot-to-forward price
differences should converge, which should reduce or eliminate the impact of this ineffectiveness on natural gas expense.

CenterPoint Energy enters into financial derivative contracts containing material adverse change provisions. These provisions
could require CenterPoint Energy to post additional collateral if the S&P or Moody’s credit ratings of CenterPoint Energy, Inc. or
its subsidiaries are downgraded. The total fair value of the derivative instruments that contain credit risk contingent features that
are in a net liability position as of December 31, 2017 and 2016 was $2 million and $1 million, respectively. CenterPoint Energy
posted no assets as collateral towards derivative instruments that contain credit risk contingent features as of either December 31,
2017 or 2016. If all derivative contracts (in a net liability position) containing credit risk contingent features were triggered at
December 31, 2017 and 2016, $2 million and $-0-, respectively, of additional assets would be required to be posted as collateral.

(d) Credit Quality of Counterparties

In addition to the risk associated with price movements, credit risk is also inherent in CenterPoint Energy’s non-trading
derivative activities. Credit risk relates to the risk of loss resulting from non-performance of contractual obligations by a
counterparty. The following table shows the composition of counterparties to the non-trading derivative assets of CenterPoint
Energy as of December 31, 2017 and 2016:

December 31, 2017

December 31, 2016

Investment
Grade (1)

Total

Investment
Grade (1)

Total

Energy marketers ................................................................... $
Financial institutions..............................................................
End users (2) ...........................................................................

Total ..................................................................................... $

6
—
17
23

(in millions)
45
$
—
109
154 (3) $

1
33
2
36

4
33
47
84 (3)

(1) “Investment grade” is primarily determined using publicly available credit ratings and considers credit support (including
parent company guarantees) and collateral (including cash and standby letters of credit). For unrated counterparties,
CenterPoint Energy determines a synthetic credit rating by performing financial statement analysis and considers
contractual rights and restrictions and collateral.

(2) End users are comprised primarily of customers who have contracted to fix the price of a portion of their physical gas

requirements for future periods.

105

(3) The net of total non-trading natural gas derivative assets was $154 million and $70 million as of December 31, 2017 and
2016, respectively, as shown on CenterPoint Energy’s Consolidated Balance Sheets, and was comprised of the natural
gas contracts derivatives assets separately shown above, impacted by collateral netting of $-0- and $14 million as of
December 31, 2017 and 2016, respectively.

(9) Fair Value Measurements

Assets and liabilities that are recorded at fair value in the Consolidated Balance Sheets are categorized based upon the level
of judgment associated with the inputs used to measure their value. Hierarchical levels, as defined below and directly related to
the amount of subjectivity associated with the inputs to fair valuations of these assets and liabilities, are as follows:

Level 1: Inputs are unadjusted quoted prices in active markets for identical assets or liabilities at the measurement date. The
types of assets carried at Level 1 fair value generally are exchange-traded derivatives and equity securities, as well as natural
gas inventory that has been designated as the hedged item in a fair value hedge.

Level 2: Inputs, other than quoted prices included in Level 1, are observable for the asset or liability, either directly or indirectly.
Level 2 inputs include quoted prices for similar instruments in active markets, and inputs other than quoted prices that are
observable for the asset or liability. Fair value assets and liabilities that are generally included in this category are derivatives
with fair values based on inputs from actively quoted markets. A market approach is utilized to value CenterPoint Energy’s
Level 2 assets or liabilities.

Level 3: Inputs are unobservable for the asset or liability, and include situations where there is little, if any, market activity
for the asset or liability. Unobservable inputs reflect CenterPoint Energy’s judgments about the assumptions market participants
would use in pricing the asset or liability since limited market data exists. CenterPoint Energy develops these inputs based
on the best information available, including CenterPoint Energy’s own data. A market approach is utilized to value CenterPoint
Energy’s Level 3 assets or liabilities. As of December 31, 2017, CenterPoint Energy’s Level 3 assets and liabilities are
comprised of physical natural gas forward contracts and options and its indexed debt securities. Level 3 physical natural gas
forward contracts are valued using a discounted cash flow model which includes illiquid forward price curve locations (ranging
from $1.73 to $9.02 per MMBtu) as an unobservable input. Level 3 options are valued through Black-Scholes (including
forward start) option models which include option volatilities (ranging from 0% to 83%) as an unobservable input. CenterPoint
Energy’s Level 3 physical natural gas forward contracts and options derivative assets and liabilities consist of both long and
short positions (forwards and options) and their fair value is sensitive to forward prices and volatilities. If forward prices
decrease, CenterPoint Energy’s long forwards lose value whereas its short forwards gain in value. If volatility decreases,
CenterPoint Energy’s long options lose value whereas its short options gain in value. CenterPoint Energy’s Level 3 indexed
debt securities are valued using a Black-Scholes option model and a discounted cash flow model, which use option volatility
(17%) and a projected dividend growth rate (7%) as unobservable inputs. An increase in either volatilities or projected dividends
will increase the value of the indexed debt securities, and a decrease in either the volatilities or projected dividends will
decrease the value of the indexed debt securities.

CenterPoint Energy determines the appropriate level for each financial asset and liability on a quarterly basis and recognizes
transfers between levels at the end of the reporting period. For the year ended December 31, 2017, there were no transfers between
Level 1 and 2. CenterPoint Energy also recognizes purchases of Level 3 financial assets and liabilities at their fair market value
at the end of the reporting period.

106

The following tables present information about CenterPoint Energy’s assets and liabilities (including derivatives that are
presented net) measured at fair value on a recurring basis as of December 31, 2017 and December 31, 2016, and indicate the fair
value hierarchy of the valuation techniques utilized by CenterPoint Energy to determine such fair value.

Quoted Prices in
Active Markets
for Identical
Assets
(Level 1)

Significant
Other
Observable
Inputs
(Level 2)

December 31, 2017

Significant
Unobservable
Inputs
(Level 3)

(in millions)

Netting
Adjustments (1)

Balance

963

— $

Assets

Corporate equities.................................. $
Investments, including money

market funds (2) ..................................
Natural gas derivatives (3) .....................
Hedged portion of natural gas

inventory ............................................
Total assets........................................ $

Liabilities

—

161

—

1,045

161

Indexed debt securities derivative ......... $
Natural gas derivatives (3) .....................

Total liabilities .................................. $

— $
—

— $

— $
96

—

668
11

679

—
(64)

—
(64) $

— $
(83)
(83) $

(1) Amounts represent the impact of legally enforceable master netting arrangements that allow CenterPoint Energy to settle
positive and negative positions and also include cash collateral of $19 million posted with the same counterparties.

(2) Amounts are included in Prepaid and Other Current Assets and Other Assets in the Consolidated Balance Sheets.

(3) Natural gas derivatives include no material amounts related to physical forward transactions with Enable.

Quoted Prices in
Active Markets
for Identical
Assets
(Level 1)

Significant
Other
Observable
Inputs
(Level 2)

December 31, 2016

Significant
Unobservable
Inputs
(Level 3)

(in millions)

Netting
Adjustments

(1)

Balance

Assets

Corporate equities.................................. $
Investments, including money

market funds (2) ..................................
Natural gas derivatives (3) .....................

Total assets........................................ $

1,044

Liabilities

Indexed debt securities derivative ......... $
Natural gas derivatives (3) .....................

Total liabilities .................................. $

— $

956

— $

—

— $

—

717

724

—
(35)
(35) $

— $
(21)
(21) $

963

154

1,199

668
24

692

956

1,103

717

763

(2) Amounts are included in Prepaid and Other Current Assets and Other Assets in the Consolidated Balance Sheets.

(3) Natural gas derivatives include no material amounts related to physical forward transactions with Enable.

107

The following table presents additional information about assets or liabilities, including derivatives that are measured at fair

value on a recurring basis for which CenterPoint Energy has utilized Level 3 inputs to determine fair value:

Fair Value Measurements Using Significant
Unobservable Inputs (Level 3)

Derivative assets and liabilities, net

Year Ended December 31,

2017

2016

(in millions)

2015

Beginning balance........................................................................................... $
Purchases (1) ....................................................................................................
Total gains .......................................................................................................
Total settlements..............................................................................................
Transfers out of Level 3 ..................................................................................
Transfers into Level 3 .....................................................................................
Ending balance (2) ........................................................................................... $
The amount of total gains (losses) for the period included in earnings

attributable to the change in unrealized gains or losses relating to assets
still held at the reporting date (3) ................................................................. $

(704) $
—

96
(11)
(17)
14
(622) $

12
(27)
(1)
(712)
(704) $

—

7
(12)
(1)
1

(402) $

(1) Mark-to-market value of Level 3 derivative assets acquired through the purchase of AEM was less than $1 million at the

acquisition date.

(2) CenterPoint Energy did not have significant Level 3 sales during any of the years ended December 31, 2017, 2016 or

2015.

(3) During 2016, CenterPoint Energy transferred its indexed debt securities from Level 2 to Level 3 to reflect changes in the
significance of the unobservable inputs used in the valuation. As of December 31, 2017, the indexed debt securities
liability was $668 million. During the year ended December 31, 2017, there was a gain of $49 million on the indexed
debt securities.

Items Measured at Fair Value on a Nonrecurring Basis

In 2015, CenterPoint Energy determined that an other than temporary decrease in the value of its investment in Enable had
occurred and, using multiple valuation methodologies under both the market and income approaches, recorded an impairment on
its investment in Enable of $1,225 million. Key assumptions in the market approach included recent market transactions of
comparable companies and EBITDA to total enterprise multiples for comparable companies. Due to volatility of the quoted price
of Enable’s units at the valuation date, a volume weighted average price was used under the market approach to best approximate
fair value at the measurement date. Key assumptions in the income approach included Enable’s forecasted cash distributions,
projected cash flows of incentive distribution rights, forecasted growth rate of Enable’s cash distributions beyond 2020, and the
discount rate used to determine the present value of the estimated future cash flows. A weighing of the different approaches was
utilized to determine the estimated fair value of our investment in Enable. Based on the significant unobservable estimates and
assumptions required, CenterPoint Energy concluded that the fair value estimate should be classified as a Level 3 measurement
within the fair value hierarchy. See Note 10 for further discussion of the impairments. As of December 31, 2017 and 2016, there
were no significant assets or liabilities measured at fair value on a nonrecurring basis.

108

Estimated Fair Value of Financial Instruments

The fair values of cash and cash equivalents, investments in debt and equity securities classified as “trading” and short-term
borrowings are estimated to be approximately equivalent to carrying amounts and have been excluded from the table below. The
carrying amounts of non-trading derivative assets and liabilities and CenterPoint Energy’s ZENS indexed debt securities derivative
are stated at fair value and are excluded from the table below. The fair value of each debt instrument is determined by multiplying
the principal amount of each debt instrument by a combination of historical trading prices and comparable issue data. These
liabilities, which are not measured at fair value in the Consolidated Balance Sheets, but for which the fair value is disclosed, would
be classified as Level 2 in the fair value hierarchy.

December 31, 2017

December 31, 2016

Carrying
Amount

Fair
Value

Carrying
Amount

Fair
Value

(in millions)

Financial liabilities:

Long-term debt.................................................................. $

8,679

9,220

8,443

8,846

(10) Unconsolidated Affiliates

CenterPoint Energy has the ability to significantly influence the operating and financial policies of Enable, a publicly traded
MLP, and, accordingly, accounts for its investment in Enable’s common units using the equity method of accounting for in-
substance real estate. See Note 2 for information on the formation of Enable.

CenterPoint Energy’s maximum exposure to loss related to Enable, a VIE in which CenterPoint Energy is not the primary
beneficiary, is limited to its equity investment and Series A Preferred Unit investment as presented in the Consolidated Balance
Sheet as of December 31, 2017 and outstanding current accounts receivable from Enable.

Limited Partner Interest in Enable (1):

As of December 31,

2017

2016 (2)

2015

CenterPoint Energy ................................................................................
OGE........................................................................................................

54.1%

25.7%

54.1%

25.7%

55.4%

26.3%

(1) Excluding the Series A Preferred Units owned by CenterPoint Energy.

(2) In November 2016, Enable completed a public offering of 11,500,000 common units of which 1,424,281 were sold by
ArcLight Capital Partners, LLC. The common units issued and sold by Enable resulted in dilution of both CenterPoint
Energy’s and OGE’s limited partner interest in Enable.

Enable Common Units and Series A Preferred Units Held:

CenterPoint Energy .......................................................................................... 233,856,623 (1)
OGE.................................................................................................................. 110,982,805

Common

Series A
Preferred

14,520,000 (2)

—

December 31, 2017

(1) The 139,704,916 subordinated units previously owned by CERC Corp. converted into common units of Enable on a one-
for-one basis, on August 30, 2017, at the end of the subordination period, as set forth in Enable’s Fourth Amended and
Restated Agreement of Limited Partnership. Upon conversion, holders of common units resulting from the conversion
of subordinated units have all the rights and obligations of unitholders holding all other common units, including the
right to receive distributions pro rata made with respect to common units.

(2) On February 18, 2016, CenterPoint Energy purchased an aggregate of 14,520,000 Series A Preferred Units from Enable

for a total purchase price of $363 million, which is accounted for as a cost method investment.

109

Generally, sales of more than 5% of the aggregate of the common units CenterPoint Energy owns in Enable or sales by OGE
of more than 5% of the aggregate of the common units it owns in Enable are subject to mutual rights of first offer and first refusal.

Enable is controlled jointly by CERC Corp. and OGE, and each own 50% of the management rights in the general partner of
Enable. Sale of CenterPoint Energy’s or OGE’s ownership interests in Enable’s general partner to a third party is subject to mutual
rights of first offer and first refusal, and CenterPoint Energy is not permitted to dispose of less than all of its interest in Enable’s
general partner.

Distributions Received from Enable:

Year Ended December 31,

2017

2016

2015

(in millions)

Investment in Enable’s common units .......................................................................
Investment in Enable’s Series A Preferred Units .......................................................
Total..........................................................................................................................

297

333

297

22 (1)

319

294

—

294

(1) Represents the period from February 18, 2016 to December 31, 2016.

As of December 31, 2017, CERC Corp. and OGE also owned 40% and 60%, respectively, of the incentive distribution rights
held by the general partner of Enable. Enable is expected to pay a minimum quarterly distribution of $0.2875 per common unit
on its outstanding common units to the extent it has sufficient cash from operations after establishment of cash reserves and
payment of fees and expenses, including payments to its general partner and its affiliates, within 60 days after the end of each
quarter. If cash distributions to Enable’s unitholders exceed $0.330625 per common unit in any quarter, the general partner will
receive increasing percentages or incentive distributions rights, up to 50%, of the cash Enable distributes in excess of that amount.
In certain circumstances the general partner of Enable will have the right to reset the minimum quarterly distribution and the target
distribution levels at which the incentive distributions receive increasing percentages to higher levels based on Enable’s cash
distributions at the time of the exercise of this reset election. To date, no incentive distributions have been made.

Effective on the formation date, CenterPoint Energy and Enable entered into the Transition Agreements. Under the Services
Agreement, CenterPoint Energy agreed to provide certain support services to Enable such as accounting, legal, risk management
and treasury functions for an initial term, which ended on April 30, 2016. CenterPoint Energy is providing certain services to
Enable on a year-to-year basis. Enable may terminate (i) the entire Services Agreement with at least 90 days’ notice prior to the
end of any extension term, or (ii) either any service provided under the Services Agreement, or the entire Services Agreement, at
any time upon approval by its board of directors and with at least 180 days’ notice.

Transactions with Enable:

Reimbursement of transition services (1) .....................................................................
Natural gas expenses, including transportation and storage costs...............................
Interest income related to notes receivable from Enable (2) ........................................

Year Ended December 31,

2017

2016

2015

(in millions)

115

—

110

117

(1) Represents amounts billed under the Transition Agreements, including the costs of seconded employees. Substantially
all of the seconded employees became employees of Enable effective January 1, 2015. Actual transition services costs
are recorded net of reimbursement.

(2) In connection with CenterPoint Energy’s purchase of Series A Preferred Units, Enable redeemed $363 million of notes

owed to a wholly-owned subsidiary of CERC Corp., which bore interest at an annual rate of 2.10% to 2.45%.

110

Accounts receivable for amounts billed for transition services.......................................
Accounts payable for natural gas purchases from Enable...............................................

Year Ended December 31,

2017

2016

(in millions)

CenterPoint Energy evaluates its equity method investments for impairment when factors indicate that a decrease in the value
of its investment has occurred and the carrying amount of its investment may not be recoverable. An impairment loss, based on
the excess of the carrying value over estimated fair value of the investment, is recognized in earnings when an impairment is
deemed to be other than temporary. Considerable judgment is used in determining if an impairment loss is other than temporary
and the amount of any impairment. Based on the sustained low Enable common unit price and further declines in such price
during the year ended December 31, 2015, as well as the market outlook for continued depressed crude oil and natural gas prices
impacting the midstream oil and gas industry, CenterPoint Energy determined that an other than temporary decrease in the value
of its equity method investment in Enable had occurred. CenterPoint Energy wrote down the value of its equity method investment
in Enable to its estimated fair value which resulted in impairment charges of $1,225 million for the year ended December 31,
2015. Both the income approach and market approach were utilized to estimate the fair value of CenterPoint Energy’s total
investment in Enable, which includes the limited partner common and subordinated units, general partner interest and incentive
distribution rights held by CenterPoint Energy. The determination of fair value considered a number of relevant factors including
Enable’s common unit price and forecasted results, recent comparable transactions and the limited float of Enable’s publicly traded
common units. See Note 9 for further discussion of the determination of fair value of CenterPoint Energy’s equity method investment
in Enable in 2015.

As of December 31, 2017 and 2016, the carrying value of CenterPoint Energy’s equity method investment in Enable was
$10.57 and $10.71 per unit, respectively, which includes limited partner common units, a general partner interest and incentive
distribution rights. On December 31, 2017 and 2016, Enable’s common unit price closed at $14.22 and $15.73, respectively. There
was no impairment indicated in 2017 or 2016.

As there were no identified events or changes in circumstances that may have a significant adverse effect on the fair value of
CenterPoint Energy’s cost method investment in Enable’s Series A Preferred Units as of December 31, 2017 and 2016, and the
investment’s fair value is not readily determinable, an estimate of the fair value of the cost method investment was not performed.

Summarized consolidated income (loss) information for Enable is as follows:

Operating revenues........................................................................................
Cost of sales, excluding depreciation and amortization ................................
Impairment of goodwill and other long-lived assets .....................................
Operating income (loss) ................................................................................
Net income (loss) attributable to Enable .......................................................

Year Ended December 31,

2017

2016

2015

(in millions)

2,803

2,272

1,381

1,017

—

528

400

385

290

2,418

1,097

1,134
(712)
(752)

Reconciliation of Equity in Earnings (Losses), net:
CenterPoint Energy’s interest ........................................................................
Basis difference amortization (1) ...................................................................
Impairment of CenterPoint Energy’s equity method investment in Enable ..
CenterPoint Energy’s equity in earnings (losses), net (2) ..............................

216

160

—

265

208

(416)
8
(1,225)
(1,633)

(1) Equity in earnings of unconsolidated affiliates includes CenterPoint Energy’s share of Enable earnings adjusted for the
amortization of the basis difference of CenterPoint Energy’s original investment in Enable and its underlying equity in
net assets of Enable. The basis difference is being amortized over approximately 31 years, the average life of the assets
to which the basis difference is attributed.

111

(2) These amounts include impairment charges totaling $1,846 million composed of CenterPoint Energy’s impairment of its
equity method investment in Enable of $1,225 million and CenterPoint Energy’s share, $621 million, of impairment
charges Enable recorded for goodwill and long-lived assets for the year ended December 31, 2015. This impairment is
offset by $213 million of earnings for the year ended December 31, 2015.

Summarized consolidated balance sheet information for Enable is as follows:

Current assets ......................................................................................................................
Non-current assets...............................................................................................................
Current liabilities.................................................................................................................
Non-current liabilities .........................................................................................................
Non-controlling interest ......................................................................................................
Preferred equity...................................................................................................................
Enable partners’ capital.......................................................................................................

Reconciliation of Investment in Enable:
CenterPoint Energy’s ownership interest in Enable partners’ capital .................................
CenterPoint Energy’s basis difference ................................................................................
CenterPoint Energy’s investment in Enable........................................................................

(11) Indexed Debt Securities (ZENS) and Securities Related to ZENS

(a) Investment in Securities Related to ZENS

December 31,

2017

2016

(in millions)

416

11,177

1,279

2,660

362

7,280

396

10,816

362

3,056

362

7,420

3,935
(1,463)
2,472

4,067
(1,562)
2,505

In 1995, CenterPoint Energy sold a cable television subsidiary to TW and received TW securities as partial consideration. A
subsidiary of CenterPoint Energy now holds 7.1 million shares of TW Common, 0.9 million shares of Time Common and 0.9
million shares of Charter Common, which are classified as trading securities and are expected to be held to facilitate CenterPoint
Energy’s ability to meet its obligation under the ZENS. Unrealized gains and losses resulting from changes in the market value
of the TW Securities are recorded in CenterPoint Energy’s Statements of Consolidated Income.

(b) ZENS

In September 1999, CenterPoint Energy issued ZENS having an original principal amount of $1 billion of which $828 million
remain outstanding at December 31, 2017. Each ZENS was originally exchangeable at the holder’s option at any time for an
amount of cash equal to 95% of the market value of the reference shares of TW Common attributable to such note. The number
and identity of the reference shares attributable to each ZENS are adjusted for certain corporate events. Prior to the closing of the
transactions discussed below, the reference shares for each ZENS consisted of 0.5 share of TW Common, 0.125505 share of TWC
Common and 0.0625 share of Time Common.

On May 26, 2015, Charter announced that it had entered into a definitive merger agreement with TWC. On September 21,
2015, Charter shareholders approved the announced transaction with TWC. Pursuant to the merger agreement, upon closing of
the merger, TWC Common would be exchanged for cash and Charter Common and as a result, reference shares for the ZENS
would consist of Charter Common, TW Common and Time Common. The merger closed on May 18, 2016. CenterPoint Energy
received $100 and 0.4891 shares of Charter Common for each share of TWC Common held, resulting in cash proceeds of $178
million and 872,531 shares of Charter Common. In accordance with the terms of the ZENS, CenterPoint Energy remitted $178
million to ZENS holders in June 2016, which reduced contingent principal.

112

As a result, CenterPoint Energy recorded the following during the year ended December 31, 2016:

Cash payment to ZENS holders ................................... $
Indexed debt – reduction ..............................................
Indexed debt securities derivative – reduction .............

Loss on indexed debt securities ................................ $

(in millions)

178
(40)
(21)
117

As of December 31, 2017, the reference shares for each ZENS consisted of 0.5 share of TW Common, 0.0625 share of Time

Common and 0.061382 share of Charter Common.

On October 22, 2016, AT&T announced that it had entered into a definitive agreement to acquire TW in a stock and cash
transaction. On February 15, 2017, TW shareholders approved the announced transaction with AT&T. Pursuant to the merger
agreement, upon closing of the merger, TW shareholders would receive for each of their shares of TW Common an estimated
implied value of $107.50, comprised of $53.75 per share in cash and $53.75 per share in AT&T Common. The stock portion will
be subject to a collar such that TW shareholders will receive 1.437 shares of AT&T Common if AT&T Common’s average stock
price is below $37.411 at closing and 1.3 shares of AT&T Common if AT&T Common’s average stock price is above $41.349 at
closing. Cash received for the TW Common reference shares would subsequently be distributed to ZENS holders, which is expected
to reduce the contingent principal balance, and reference shares would consist of Charter Common, Time Common and AT&T
Common. In November 2017, the U.S. Department of Justice filed a civil antitrust lawsuit to block AT&T’s acquisition of TW.
AT&T has announced it does not expect the outcome of this matter to prohibit the acquisition. Legal proceedings are expected to
begin in the first or second quarter of 2018.

On November 26, 2017, Meredith announced that it had entered into a definitive merger agreement with Time. Pursuant to
the merger agreement, a subsidiary of Meredith offered to purchase for cash all outstanding Time Common shares for $18.50 per
share. The transaction was consummated on January 31, 2018. CenterPoint Energy elected to make a reference share offer
adjustment and distribute additional interest, if any, in accordance with the terms of its ZENS rather than electing to increase the
early exchange ratio to 100% during the pendency of Meredith’s tender offer for all outstanding shares of Time Common.
Distributions of additional interest on the ZENS will be made by CenterPoint Energy in connection with the consummation of
Meredith’s tender offer and the subsequent merger of Time with a subsidiary of Meredith. CenterPoint Energy's distribution of
additional interest in connection with the reference share offer is expected to be proportionate to the percentage of eligible shares
that are validly tendered by Time stockholders in Meredith’s tender offer. In accordance with the terms of the ZENS, CenterPoint
Energy will remit additional interest of approximately $16 million to ZENS holders on March 6, 2018, which will reduce the
contingent principal amount.

CenterPoint Energy pays interest on the ZENS at an annual rate of 2% plus the amount of any quarterly cash dividends paid
in respect of the reference shares attributable to the ZENS. The principal amount of ZENS is subject to being increased or decreased
to the extent that the annual yield from interest and cash dividends on the reference shares is less than or more than 2.309%. The
adjusted principal amount is defined in the ZENS instrument as “contingent principal.” At December 31, 2017, ZENS having an
original principal amount of $828 million and a contingent principal amount of $505 million were outstanding and were
exchangeable, at the option of the holders, for cash equal to 95% of the market value of reference shares deemed to be attributable
to the ZENS. As of December 31, 2017, the market value of such shares was approximately $960 million, which would provide
an exchange amount of $1,101 for each $1,000 original principal amount of ZENS. At maturity of the ZENS in 2029, CenterPoint
Energy will be obligated to pay in cash the higher of the contingent principal amount of the ZENS or an amount based on the then-
current market value of the reference shares, which will include any additional publicly-traded securities distributed with respect
to the current reference shares prior to maturity.

The ZENS obligation is bifurcated into a debt component and a derivative component (the holder’s option to receive the
appreciated value of the reference shares at maturity). The bifurcated debt component accretes through interest charges at 19.5%
annually up to the contingent principal amount of the ZENS in 2029. Such accretion will be reduced by annual cash interest
payments, as described above. The derivative component is recorded at fair value and changes in the fair value of the derivative
component are recorded in CenterPoint Energy’s Statements of Consolidated Income. Changes in the fair value of the TW Securities
held by CenterPoint Energy are expected to substantially offset changes in the fair value of the derivative component of the ZENS.

113

The following table sets forth summarized financial information regarding CenterPoint Energy’s investment in TW Securities

and each component of CenterPoint Energy’s ZENS obligation.

TW
Securities

Debt
Component
of ZENS (1)

(in millions)

Derivative
Component
of ZENS

Balance as of December 31, 2014................................................................... $
Accretion of debt component of ZENS ........................................................
2% interest paid ............................................................................................
Sale of TW Securities ...................................................................................
Distribution to ZENS holders .......................................................................
Gain on indexed debt securities....................................................................
Loss on TW Securities..................................................................................
Balance as of December 31, 2015...................................................................
Accretion of debt component of ZENS ........................................................
2% interest paid ............................................................................................
Sale of TW Securities ...................................................................................
Distribution to ZENS holders .......................................................................
Loss on indexed debt securities ....................................................................
Gain on TW Securities..................................................................................
Balance as of December 31, 2016...................................................................
Accretion of debt component of ZENS ........................................................
2% interest paid ............................................................................................
Distribution to ZENS holders .......................................................................
Gain on indexed debt securities....................................................................
Gain on TW Securities..................................................................................
Balance as of December 31, 2017................................................................... $

930

142

—

—
(32)
—

—
(93)
805

—

—
(178)
—

—

326

953

—

27
(17)
—
(7)
—

—

145

26
(17)
—
(40)
—

—

114

27
(17)
(2)
—

—

960

122

541

—

—
(18)
(81)
—

442

—

—
(21)
296

—

717

—

—
(49)
—

668

(1) To reflect adoption of ASU 2015-03, balances have been restated to include unamortized debt issuance costs of $9

million and $10 million as of December 31, 2015 and 2014, respectively.

(12) Equity

Dividends Declared

CenterPoint Energy declared and paid dividends per share of $1.07, $1.03 and $0.99, respectively, during the years ended

December 31, 2017, 2016 and 2015.

On December 13, 2017, our Board of Directors declared a regular quarterly cash dividend of $0.2775 per share, payable on

March 8, 2018 to shareholders of record at the close of business on February 15, 2018.

Undistributed Retained Earnings

As of both December 31, 2017 and 2016, CenterPoint Energy’s consolidated retained earnings balance includes undistributed

earnings from Enable of $-0-.

114

(13) Short-term Borrowings and Long-term Debt

December 31,
2017

December 31,
2016

Long-Term

Current (1)

Long-Term

Current (1)

(in millions)

Short-term borrowings:

Inventory financing (2) ...................................................... $
Total short-term borrowings ......................................

— $

—

— $

—

Long-term debt:

CenterPoint Energy:

ZENS due 2029 (3) ............................................................
Senior notes 2.50% due 2022............................................
Pollution control bonds 5.05% to 5.125% due 2018 to

2028 (4) ..........................................................................
Commercial paper (5) ........................................................

Houston Electric:

First mortgage bonds 9.15% due 2021..............................
General mortgage bonds 1.85% to 6.95% due 2021 to

2044 ...............................................................................

System restoration bonds 3.46% to 4.243% due 2018 to

2022 ...............................................................................
Transition bonds 2.161% to 5.302% due 2019 to 2024 ....

CERC Corp.:

Senior notes 4.10% to 6.625% due 2021 to 2047 .............
Commercial paper (5) ........................................................
Unamortized debt issuance costs.........................................
Unamortized discount and premium, net.............................
Total long-term debt...................................................

—

500

855

102

2,812

256

1,181

1,593

898
(38)
(32)
8,195

Total debt............................................................... $

8,195

(1) Includes amounts due or exchangeable within one year of the date noted.

122

—

378

—

606

645

—

118

835

102

2,512

312

1,560

1,593

569
(33)
(36)
7,532

7,532

114

250

—

358

250

—

1,025

1,060

(2) NGD has AMAs associated with its utility distribution service in Arkansas, Louisiana, Mississippi, Oklahoma and Texas.
The AMAs have varying terms, the longest of which expires in 2020. Pursuant to the provisions of the agreements, NGD
sells natural gas and agrees to repurchase an equivalent amount of natural gas during the winter heating seasons at the
same cost, plus a financing charge. These transactions are accounted for as an inventory financing.

(3) CenterPoint Energy’s ZENS obligation is bifurcated into a debt component and an embedded derivative component. For
additional information regarding ZENS, see Note 11(b). As ZENS are exchangeable for cash at any time at the option of
the holders, these notes are classified as a current portion of long-term debt.

(4) $118 million of these series of debt were secured by general mortgage bonds of Houston Electric as of both December 31,

2017 and 2016.

(5) Classified as long-term debt because the termination date of the facility that backstops the commercial paper is more than

one year from the date noted.

Long-term Debt

Debt Retirements. In February 2017, CenterPoint Energy retired $250 million aggregate principal amount of its 5.95% senior

notes at their maturity. The retirement of senior notes was financed by the issuance of commercial paper.

115

In November 2017, CERC Corp. retired $250 million aggregate principal amount of its 6.125% senior notes at their maturity.

The retirement of senior notes was financed by the issuance of commercial paper.

In December 2017, CERC Corp. redeemed $300 million aggregate principal amount of its 6.00% senior notes due 2018 at a
redemption price equal to 100% of the principal amount thereof, plus accrued and unpaid interest thereon to but excluding the
redemption date, plus the make-whole premium. The make-whole premium associated with the redemption was approximately
$5 million and was included in Other Income, net on the Statements of Consolidated Income.

Debt Issuances. During the year ended December 31, 2017, CenterPoint Energy, Houston Electric and CERC Corp. issued

the following debt instruments:

Issuance Date

Debt Instrument

Aggregate
Principal
Amount

(in millions)

Interest
Rate

Maturity
Date

Houston Electric ..........
CenterPoint Energy......
CERC Corp..................

January 2017
August 2017
August 2017

General mortgage bonds
Unsecured senior notes
Unsecured senior notes

300
500
300

3.00%
2.50%
4.10%

2027
2022
2047

The proceeds from these issuances were used for general limited liability company and corporate purposes, as applicable,

including to repay portions of outstanding commercial paper.

Securitization Bonds. As of December 31, 2017, Houston Electric had special purpose subsidiaries consisting of the Bond
Companies, which it consolidates. The consolidated special purpose subsidiaries are wholly-owned, bankruptcy remote entities
that were formed solely for the purpose of purchasing and owning transition or system restoration property through the issuance
of transition bonds or system restoration bonds and activities incidental thereto. These Securitization Bonds are payable only
through the imposition and collection of “transition” or “system restoration” charges, as defined in the Texas Public Utility
Regulatory Act, which are irrevocable, non-bypassable charges to provide recovery of authorized qualified costs. Houston Electric
has no payment obligations in respect of the Securitization Bonds other than to remit the applicable transition or system restoration
charges it collects. Each special purpose entity is the sole owner of the right to impose, collect and receive the applicable transition
or system restoration charges securing the bonds issued by that entity. Creditors of CenterPoint Energy or Houston Electric have
no recourse to any assets or revenues of the Bond Companies (including the transition and system restoration charges), and the
holders of Securitization Bonds have no recourse to the assets or revenues of CenterPoint Energy or Houston Electric.

Credit Facilities. In June 2017, CenterPoint Energy, Houston Electric and CERC Corp. each entered into amendments to
their respective revolving credit facilities to extend the termination date thereof from March 3, 2021 to March 3, 2022 and to
terminate the swingline loan subfacility thereunder. The amendments to the CenterPoint Energy and CERC Corp. revolving credit
facilities also increased the aggregate commitments by $100 million and $300 million, respectively, to $1.7 billion and $900
million under their respective revolving credit facilities. No changes were made to the aggregate commitments under the Houston
Electric revolving credit facility. In connection with the amendments to increase the aggregate commitments under their respective
revolving credit facilities, CenterPoint Energy and CERC Corp. each increased the size of their respective commercial paper
programs to permit the issuance of commercial paper notes in an aggregate principal amount not to exceed $1.7 billion and $900
million, respectively, at any time outstanding.

As of December 31, 2017 and 2016, CenterPoint Energy, Houston Electric and CERC Corp. had the following revolving

credit facilities and utilization of such facilities:

December 31, 2017

December 31, 2016

Size of
Facility

Loans

Letters
of Credit

Commercial
Paper

Size of
Facility

Loans

Letters
of Credit

Commercial
Paper

CenterPoint Energy.................. $ 1,700
300
Houston Electric ......................
CERC Corp..............................

900
Total .................................... $ 2,900

$ — $

—

(in millions)

855 (1) $ 1,600

$ — $

—

898 (2)

300

600

—

835 (1)

—

569 (2)

$ — $

1,753

$ 2,500

$ — $

1,404

(1) Weighted average interest rate was 1.88% and 1.04% as of December 31, 2017 and December 31, 2016, respectively.

116

(2) Weighted average interest rate was 1.72% and 1.03% as of December 31, 2017 and December 31, 2016, respectively.

Execution
Date

Company

Size of
Facility

(in millions)

Draw Rate
of LIBOR
plus (2)

Financial
Covenant
Limit on
Debt for
Borrowed
Money to
Capital
Ratio

Debt for
Borrowed
Money to
Capital
Ratio as of
December
31, 2017 (3)

Termination
Date (5)

March 3, 2016 CenterPoint Energy............
March 3, 2016 Houston Electric.................
March 3, 2016 CERC Corp. .......................

1,700 (1)

1.250%

300

1.125%

65% (4)

900 (1)

1.250%

65%

52.9%

48.6%

40.4%

March 3, 2022

(1) Amended on June 16, 2017 to increase the aggregate commitment size as noted above.

(2) Based on current credit ratings.

(3) As defined in the revolving credit facility agreement, excluding Securitization Bonds.

(4) The financial covenant limit will temporarily increase from 65% to 70% if Houston Electric experiences damage from
a natural disaster in its service territory and CenterPoint Energy certifies to the administrative agent that Houston Electric
has incurred system restoration costs reasonably likely to exceed $100 million in a consecutive 12-month period, all or
part of which Houston Electric intends to seek to recover through securitization financing. Such temporary increase in
the financial covenant would be in effect from the date CenterPoint Energy delivers its certification until the earliest to
occur of (i) the completion of the securitization financing, (ii) the first anniversary of CenterPoint Energy’s certification
or (iii) the revocation of such certification.

(5) Amended on June 16, 2017 to extend the termination date as noted above.

CenterPoint Energy, Houston Electric and CERC Corp. were in compliance with all financial debt covenants as of December 31,

2017.

Maturities. Maturities of long-term debt, capital leases and sinking fund requirements, excluding the ZENS obligation, are

as follows:

CenterPoint
Energy (1)

Securitization
Bonds

(in millions)

2018 ......... $
2019 .........

2020 .........

2021 .........

2022 .........

484
458

231

1,206

2,773

434
458

231

211

219

(1) These maturities include Securitization Bonds principal repayments on scheduled payment dates.

Liens. As of December 31, 2017, Houston Electric’s assets were subject to liens securing approximately $102 million of first
mortgage bonds. Sinking or improvement fund and replacement fund requirements on the first mortgage bonds may be satisfied
by certification of property additions. Sinking fund and replacement fund requirements for 2017, 2016 and 2015 have been satisfied
by certification of property additions. The replacement fund requirement to be satisfied in 2018 is approximately $266 million,
and the sinking fund requirement to be satisfied in 2018 is approximately $1.6 million. CenterPoint Energy expects Houston
Electric to meet these 2018 obligations by certification of property additions. As of December 31, 2017, Houston Electric’s assets
were also subject to liens securing approximately $2.9 billion of general mortgage bonds, which are junior to the liens of the first
mortgage bonds.

117

(14) Income Taxes

The components of CenterPoint Energy’s income tax expense (benefit) were as follows:

Current income tax expense (benefit):

Federal .......................................................................................................... $
State ..............................................................................................................
Total current expense (benefit) ................................................................

Deferred income tax expense (benefit):

Federal ..........................................................................................................
State ..............................................................................................................
Total deferred expense (benefit) ..............................................................
Total income tax expense (benefit) ................................................................. $

Year Ended December 31,

2017

2016

(in millions)

2015

32
9
41

(806)
36
(770)
(729) $

23
18
41

185
28
213
254

(37)
12
(25)

(359)
(54)
(413)
(438)

A reconciliation of income tax expense (benefit) using the federal statutory income tax rate to the actual income tax expense

and resulting effective income tax rate is as follows:

Year Ended December 31,

2017

2016

(in millions)

2015

Income (loss) before income taxes.................................................................. $
Federal statutory income tax rate ....................................................................
Expected federal income tax expense (benefit) ..............................................
Increase (decrease) in tax expense resulting from:

State income tax expense, net of federal income tax....................................
State valuation allowance, net of federal income tax ...................................
Federal income tax rate reduction.................................................................
Other, net ......................................................................................................
Total .........................................................................................................
Total income tax expense (benefit) ................................................................. $
Effective tax rate .............................................................................................

1,063

686

35 %

372

(1,113)

(17)

(1,101)

35%

240

—
(16)
14

(729)

254

(69)%

37%

(1,130)
35%
(396)

(27)
—

—
(15)
(42)
(438)
39%

In 2017, CenterPoint Energy recognized a $1.1 billion deferred tax benefit from the remeasurement of CenterPoint Energy’s
ADFIT liability as a result of the enactment of the TCJA on December 22, 2017 which reduced the U.S. corporate income tax rate
from 35% to 21%. For additional information on the 2017 impacts of the TCJA, please see the discussion following the deferred
tax assets and liabilities table below.

In 2016, CenterPoint Energy recognized a $6 million deferred tax expense due to Louisiana state law change and recorded

an additional $3 million valuation allowance on certain state carryforwards.

In 2015, CenterPoint Energy’s effective tax rate was higher than the statutory rate primarily due to lower earnings from the
impairment of CenterPoint Energy’s equity method investment in Enable. The impairment loss reduced the deferred tax liability
on CenterPoint Energy’s equity method investment in Enable.

118

The tax effects of temporary differences that give rise to significant portions of deferred tax assets and liabilities were as

follows:

Deferred tax assets:

Benefits and compensation.................................................................................................. $
Regulatory liabilities ...........................................................................................................
Loss and credit carryforwards .............................................................................................
Asset retirement obligations ................................................................................................
Other ....................................................................................................................................
Valuation allowance.............................................................................................................
Total deferred tax assets....................................................................................................

Deferred tax liabilities:

Property, plant, and equipment............................................................................................
Investment in unconsolidated affiliates ...............................................................................
Regulatory assets .................................................................................................................
Investment in marketable securities and indexed debt ........................................................
Indexed debt securities derivative .......................................................................................
Other ....................................................................................................................................
Total deferred tax liabilities ..............................................................................................

Net deferred tax liabilities ........................................................................................... $

December 31,

2017

2016

(in millions)

162
347
90
68
16
(7)
676

1,808
927
473
502
13
127
3,850
3,174

316
57
79
77
21
(5)
545

2,603
1,383
940
772
4
106
5,808
5,263

Federal Tax Reform. On December 22, 2017, President Trump signed into law comprehensive tax reform legislation informally
called the Tax Cuts and Jobs Acts, or TCJA, which resulted in significant changes to federal tax laws effective January 1, 2018.
The new legislation contains several key tax provisions that will impact CenterPoint Energy, including the reduction of the corporate
income tax rate from 35% to 21% effective January 1, 2018. The new legislation also includes a variety of other changes, such
as, a limitation on the tax deductibility of interest expense, acceleration of business asset expensing and reduction in the amount
of executive pay that may qualify for a tax deduction, among others. Several other provisions of the TCJA are not generally
applicable to the public utility industry, including the limitation on the tax deductibility of interest expense and the acceleration
of business asset expensing.

While the effective date of the rate change in the legislation is January 1, 2018, ASC 740 requires that deferred tax balances
be adjusted in the period of enactment to the rate in which those deferred taxes will reverse. The EDIT from the rate change resulted
in an adjustment to income tax expense of approximately $1.1 billion and creation of a net regulatory liability of $1.3 billion
(includes $0.3 billion gross-up) for the amount that is likely to be returned to ratepayers. The major components of the $1.1 billion
benefit to income tax expense are for the remeasurement of CenterPoint Energy's deferred taxes associated with its investment in
Enable, investment in marketable securities (ZENS) and stranded costs related to the Securitization Bonds. The amount and
expected amortization of the net regulatory tax liability may differ from the $1.3 billion estimate, possibly materially, due to,
among other things, regulatory actions, interpretations and assumptions CenterPoint Energy has made, and any guidance that may
be issued in the future. CenterPoint Energy will continue to assess the amount and expected amortization of the net regulatory tax
liability as it has proceedings with regulators in future periods. For the discussion of risks associated with the amount and expected
flow through of EDIT by Houston Electric and NGD, see “Management’s Discussion and Analysis of Financial Condition and
Results of Operations — Liquidity and Capital Resources — Regulatory Matters —Tax Reform” in Item 7 of Part II of this report.

Tax Attribute Carryforwards and Valuation Allowance. CenterPoint Energy has no remaining federal net operating loss
carryforward or federal tax credits as of December 31, 2017. As of December 31, 2017, CenterPoint Energy had $870 million of
state net operating loss carryforwards that expire between 2018 and 2037 and $12 million of state tax credits that do not expire.
A state capital loss carryforward of $244 million expired unutilized at the end of 2017. CenterPoint Energy reported a valuation
allowance of $7 million because it is more likely than not that the benefit from certain state net operating loss carryforwards will
not be realized.

119

Uncertain Income Tax Positions. CenterPoint Energy reported no uncertain tax liability as of December 31, 2017, 2016 and
2015. CenterPoint Energy expects no significant change to the uncertain tax liability over the next 12 months ending December 31,
2018.

Tax Audits and Settlements. Tax years through 2015 have been audited and settled with the IRS. For the 2016 through 2018

tax years, CenterPoint Energy is a participant in the IRS’s Compliance Assurance Process.

(15) Commitments and Contingencies

(a) Natural Gas Supply and Other Commitments

Natural gas supply commitments include natural gas contracts related to CenterPoint Energy’s Natural Gas Distribution and
Energy Services business segments, which have various quantity requirements and durations, that are not classified as non-trading
derivative assets and liabilities in CenterPoint Energy’s Consolidated Balance Sheets as of December 31, 2017 and 2016 as these
contracts meet an exception as “normal purchases contracts” or do not meet the definition of a derivative. Natural gas supply
commitments also include natural gas transportation contracts that do not meet the definition of a derivative. As of December 31,
2017, minimum payment obligations for natural gas supply and other commitments are approximately:

2018........................................... $
2019...........................................
2020...........................................
2021...........................................
2022...........................................
2023 and beyond .......................

Natural Gas
Supply

Other (1)

(in millions)
463
353
169
79
49
108

37
17
11
—
—
—

(1) Primarily relates to technology hardware and software

(b) AMAs

NGD currently has AMAs associated with its utility distribution service in Arkansas, Louisiana, Mississippi, Oklahoma and
Texas. The AMAs have varying terms, the longest of which expires in 2020. Generally, AMAs are contracts between NGD and
an asset manager that are intended to transfer the working capital obligation and maximize the utilization of the assets. In these
AMAs, NGD agrees to release transportation and storage capacity to other parties to manage natural gas storage, supply and
delivery arrangements for NGD and to use the released capacity for other purposes when it is not needed for NGD. NGD is
compensated by the asset manager through payments made over the life of the AMAs based in part on the results of the asset
optimization. NGD has an obligation to purchase its winter storage requirements that have been released to the asset manager
under these AMAs. NGD has received approval from the state regulatory commissions in Arkansas, Louisiana, Mississippi and
Oklahoma to retain a share of the AMA proceeds.

The following table sets forth information concerning CenterPoint Energy’s obligations under non-cancelable long-term
operating leases as of December 31, 2017, which primarily consist of rental agreements for building space, data processing
equipment, compression equipment and rights-of-way:

2018 ..................................................................... $
2019 .....................................................................
2020 .....................................................................
2021 .....................................................................
2022 .....................................................................
2023 and beyond..................................................

Total................................................................... $

(in millions)

5
5
4
4
3
5
26

120

Total lease expense for all operating leases was $10 million, $10 million and $9 million during 2017, 2016 and 2015,

respectively.

(d) Legal, Environmental and Other Matters

Legal Matters

Gas Market Manipulation Cases. CenterPoint Energy, Houston Electric or their predecessor, Reliant Energy, and certain of
their former subsidiaries have been named as defendants in certain lawsuits described below. Under a master separation agreement
between CenterPoint Energy and a former subsidiary, RRI, CenterPoint Energy and its subsidiaries are entitled to be indemnified
by RRI and its successors for any losses, including certain attorneys’ fees and other costs, arising out of these lawsuits. In May
2009, RRI sold its Texas retail business to a subsidiary of NRG and RRI changed its name to RRI Energy, Inc. In December 2010,
Mirant Corporation merged with and became a wholly-owned subsidiary of RRI, and RRI changed its name to GenOn. In December
2012, NRG acquired GenOn through a merger in which GenOn became a wholly-owned subsidiary of NRG. None of the sale of
the retail business, the merger with Mirant Corporation, or the acquisition of GenOn by NRG alters RRI’s (now GenOn’s) contractual
obligations to indemnify CenterPoint Energy and its subsidiaries, including Houston Electric, for certain liabilities, including their
indemnification obligations regarding the gas market manipulation litigation.

A large number of lawsuits were filed against numerous gas market participants in a number of federal and western state
courts in connection with the operation of the natural gas markets in 2000–2002. CenterPoint Energy and its affiliates have since
been released or dismissed from all such cases. CES, a subsidiary of CERC Corp., was a defendant in a case now pending in
federal court in Nevada alleging a conspiracy to inflate Wisconsin natural gas prices in 2000–2002. On May 24, 2016, the district
court granted CES’s motion for summary judgment, dismissing CES from the case. The plaintiffs have appealed that ruling.
CenterPoint Energy and CES intend to continue vigorously defending against the plaintiffs’ claims. In June 2017, GenOn and
various affiliates filed for protection under Chapter 11 of the U.S. Bankruptcy Code. In December 2017, GenOn received court
approval of a restructuring plan and is expected to emerge from Chapter 11 in mid-2018. CenterPoint Energy, CERC, and CES
submitted proofs of claim in the bankruptcy proceedings to protect their indemnity rights. If GenOn were unable to meet its
indemnity obligations or satisfy a liability that has been assumed in the gas market manipulation litigation, then CenterPoint
Energy, Houston Electric or CERC could incur liability and be responsible for satisfying the liability. CenterPoint Energy does
not expect the ultimate outcome of the case against CES to have a material adverse effect on its financial condition, results of
operations or cash flows.

Minnehaha Academy. On August 2, 2017, a natural gas explosion occurred at the Minnehaha Academy in Minneapolis,
Minnesota, resulting in the deaths of two school employees, serious injuries to others and significant property damage to the
school. CenterPoint Energy, certain of its subsidiaries, and the contractor company working in the school have been named in
litigation arising out of this incident. Additionally, CenterPoint Energy is cooperating with the ongoing investigation conducted
by the National Transportation Safety Board. Further, CenterPoint Energy is contesting approximately $200,000 in fines imposed
by the Minnesota Office of Pipeline Safety. In early 2018, the Minnesota Occupational Safety and Health Administration concluded
its investigation without any adverse findings against CenterPoint Energy. CenterPoint Energy’s general and excess liability
insurance policies provide coverage for third party bodily injury and property damage claims.

Environmental Matters

MGP Sites. CERC and its predecessors operated MGPs in the past. With respect to certain Minnesota MGP sites, CERC has
completed state-ordered remediation and continues state-ordered monitoring and water treatment. As of December 31, 2017,
CERC had a recorded liability of $7 million for continued monitoring and any future remediation required by regulators in
Minnesota. The estimated range of possible remediation costs for the sites for which CERC believes it may have responsibility
was $5 million to $30 million based on remediation continuing for 30 to 50 years. The cost estimates are based on studies of a
site or industry average costs for remediation of sites of similar size. The actual remediation costs will depend on the number of
sites to be remediated, the participation of other PRPs, if any, and the remediation methods used.

In addition to the Minnesota sites, the EPA and other regulators have investigated MGP sites that were owned or operated by
CERC or may have been owned by one of its former affiliates. CenterPoint Energy does not expect the ultimate outcome of these
matters to have a material adverse effect on the financial condition, results of operations or cash flows of either CenterPoint Energy
or CERC.

Asbestos. Some facilities owned by CenterPoint Energy or its predecessors in interest contain or have contained asbestos
insulation and other asbestos-containing materials. CenterPoint Energy and its subsidiaries are from time to time named, along

121

with numerous others, as defendants in lawsuits filed by a number of individuals who claim injury due to exposure to asbestos,
and CenterPoint Energy anticipates that additional claims may be asserted in the future. Although their ultimate outcome cannot
be predicted at this time, CenterPoint Energy does not expect these matters, either individually or in the aggregate, to have a
material adverse effect on CenterPoint Energy’s financial condition, results of operations or cash flows.

Other Environmental. From time to time, CenterPoint Energy identifies the presence of environmental contaminants during
its operations or on property where its predecessor companies have conducted operations. Other such sites involving contaminants
may be identified in the future. CenterPoint Energy has and expects to continue to remediate any identified sites consistent with
its state and federal legal obligations. From time to time CenterPoint Energy has received notices, and may receive notices in the
future, from regulatory authorities or others regarding its status as a PRP in connection with sites found to require remediation
due to the presence of environmental contaminants. In addition, CenterPoint Energy has been, or may be, named from time to
time as a defendant in litigation related to such sites. Although the ultimate outcome of such matters cannot be predicted at this
time, CenterPoint Energy does not expect these matters, either individually or in the aggregate, to have a material adverse effect
on CenterPoint Energy’s financial condition, results of operations or cash flows.

Other Proceedings

CenterPoint Energy is involved in other legal, environmental, tax and regulatory proceedings before various courts, regulatory
commissions and governmental agencies regarding matters arising in the ordinary course of business. From time to time,
CenterPoint Energy is also a defendant in legal proceedings with respect to claims brought by various plaintiffs against broad
groups of participants in the energy industry. Some of these proceedings involve substantial amounts. CenterPoint Energy regularly
analyzes current information and, as necessary, provides accruals for probable and reasonably estimable liabilities on the eventual
disposition of these matters. CenterPoint Energy does not expect the disposition of these matters to have a material adverse effect
on CenterPoint Energy’s financial condition, results of operations or cash flows.

(16) Earnings Per Share

The following table reconciles numerators and denominators of CenterPoint Energy’s basic and diluted earnings (loss) per

share calculations:

For the Year Ended December 31,

2017

2016

2015

(in millions, except per share and share amounts)

Net income (loss) (1) ...................................................................... $

1,792

432

(692)

Basic weighted average shares outstanding..............................
Plus: Incremental shares from assumed conversions:

430,964,000

430,606,000

430,180,000

Restricted stock (2) ......................................................................
Diluted weighted average shares................................................

3,344,000

2,997,000

—

434,308,000

433,603,000

430,180,000

Basic earnings (loss) per share ................................................... $

Diluted earnings (loss) per share................................................ $

4.16

4.13

1.00

(1.61)

(1) Net income for the year ended December 31, 2017 includes a reduction in income taxes of $1,113 million due to tax

reform. See Note 14 for further discussion of the impacts of tax reform implementation.

(2) 2,349,000 incremental shares from assumed conversions of restricted stock have not been included in the computation
of diluted earnings (loss) per share for the year ended December 31, 2015, as their inclusion would be anti-dilutive.

122

(17) Unaudited Quarterly Information

Summarized quarterly financial data is as follows:

Year Ended December 31, 2017

First
Quarter

Second
Quarter

Third
Quarter

Fourth
Quarter

Revenues.............................................................................. $
Operating income ................................................................
Net income (1) ......................................................................

2,735
274
192

(in millions, except per share amounts)
2,098
$
279
169

2,143
223
135

Basic earnings per share (2) ................................................. $

Diluted earnings per share (2) .............................................. $

0.45

0.44

0.31

0.39

First
Quarter

Year Ended December 31, 2016

Second
Quarter

Third
Quarter

Revenues.............................................................................. $
Operating income ................................................................
Net income (loss).................................................................

1,984
250
154

(in millions, except per share amounts)
1,889
$
284
179

1,574
182
(2)

Basic earnings (loss) per share (2) ....................................... $

Diluted earnings (loss) per share (2) .................................... $

0.36

(0.01) $

0.42

0.41

2,638
296
1,296

3.01

2.99

Fourth
Quarter

2,081
243
101

0.23

(1) Net income for the fourth quarter 2017 includes a reduction in income taxes of $1,113 million due to tax reform. See

Note 14 for further discussion of the impacts of tax reform implementation.

(2) Quarterly earnings (loss) per common share are based on the weighted average number of shares outstanding during the

quarter, and the sum of the quarters may not equal annual earnings (loss) per common share.

(18) Reportable Business Segments

CenterPoint Energy’s determination of reportable business segments considers the strategic operating units under which
CenterPoint Energy manages sales, allocates resources and assesses performance of various products and services to wholesale
or retail customers in differing regulatory environments. CenterPoint Energy uses operating income as the measure of profit or
loss for its business segments other than Midstream Investments, where it uses equity in earnings.

CenterPoint Energy’s reportable business segments include the following: Electric Transmission & Distribution, Natural Gas
Distribution, Energy Services, Midstream Investments and Other Operations. The electric transmission and distribution function
(Houston Electric) is reported in the Electric Transmission & Distribution business segment. Natural Gas Distribution consists of
intrastate natural gas sales to, and natural gas transportation and distribution for, residential, commercial, industrial and institutional
customers. Energy Services represents CenterPoint Energy’s non-rate regulated gas sales and services operations. Midstream
Investments consists of CenterPoint Energy’s equity investment in Enable. Other Operations consists primarily of other corporate
operations which support all of CenterPoint Energy’s business operations.

Long-lived assets include net property, plant and equipment, goodwill and other intangibles and equity investments in

unconsolidated subsidiaries. Intersegment sales are eliminated in consolidation.

123

Financial data for business segments and products and services are as follows:

Revenues
from
External
Customers

Intersegment
Revenues

Depreciation
and
Amortization

Operating
Income

Total
Assets (1)

Expenditures
for Long-
Lived
Assets

As of and for the year ended
December 31, 2017:

Electric Transmission & Distribution .. $

Natural Gas Distribution ......................

Energy Services ...................................

Midstream Investments (3) ..................

Other ....................................................

Eliminations .........................................

Consolidated ........................................ $

Reconciling items.................................

Capital expenditures per Statements of
Consolidated Cash Flows.....................

As of and for the year ended
December 31, 2016:

Electric Transmission & Distribution .. $

Natural Gas Distribution ......................

Energy Services ...................................

Midstream Investments (3) ..................

Other ....................................................

Eliminations .........................................

Consolidated ........................................ $

Reconciling items.................................

Capital expenditures per Statements of
Consolidated Cash Flows.....................

As of and for the year ended
December 31, 2015:

Electric Transmission & Distribution .. $

Natural Gas Distribution ......................

Energy Services ...................................

Midstream Investments (3) ..................

Other ....................................................

Eliminations .........................................

Consolidated ........................................ $

Reconciling items.................................

Capital expenditures per Statements of
Consolidated Cash Flows.....................

2,997 (2) $
2,606
3,997

—
14
—
9,614

3,060 (2) $
2,380
2,073

—
15
—
7,528

2,845 (2) $
2,603
1,924

—
14
—
7,386

—

(85)

—

(55)

—

(62)

—

(in millions)

724

260

—

610

328

125

—

10,292

6,608

1,521

2,472

2,497 (4)

(654)

1,036

1,072

22,736

838

242

—

628

303

—

10,211

6,099

1,102

2,505

2,681 (4)

(769)

1,126

959

21,829

705

222

—

607

273

—

970

933

10,028

5,657

857

2,594

2,879 (4)

(725)
21,290

924

523

—

1,494

(68)

1,426

858

510

—

1,406

1,414

934

601

—

1,575

1,584

(1) Amounts for 2015 have been restated to reflect the adoption of ASU 2015-03.

(2) Houston Electric’s transmission and distribution revenues from major customers are as follows:

Affiliates of NRG............................................................................
Affiliates of Vistra Energy Corp. ....................................................

Year Ended December 31, 2017

2017

2016

2015

(in millions)

713

229

698

220

741

220

124

(3) Midstream Investments’ equity earnings (losses) are as follows:

Year Ended December 31, 2017

2017

2016

2015 (a)

(in millions)

Enable..............................................................................................

265

208

(1,633)

(a) Includes impairment charges totaling $1,846 million composed of CenterPoint Energy’s impairment of its equity
method investment in Enable of $1,225 million and CenterPoint Energy’s share, $621 million, of impairment charges
Enable recorded for goodwill and long-lived assets for the year ended December 31, 2015. This impairment is offset
by $213 million of earnings for the year ended December 31, 2015.

(4) Included in total assets of Other Operations as of December 31, 2017, 2016 and 2015, are pension and other

postemployment related regulatory assets of $600 million, $759 million and $814 million, respectively.

Revenues by Products and Services:

Year Ended December 31,

2017

2016

(in millions)

2015

Electric delivery.............................................................................................
Retail gas sales ..............................................................................................
Wholesale gas sales .......................................................................................
Gas transportation and processing.................................................................
Energy products and services ........................................................................
Total.............................................................................................................

2,997
3,634
2,811
29
143
9,614

3,060
3,329
977
23
139
7,528

2,845
3,725
657
26
133
7,386

(19) Subsequent Events

On February 9, 2018, Enable declared a quarterly cash distribution of $0.318 per unit on all of its outstanding common units
for the quarter ended December 31, 2017. Accordingly, CERC Corp. expects to receive a cash distribution of approximately $74
million from Enable in the first quarter of 2018 to be made with respect to CERC Corp.’s limited partner interest in Enable for
the fourth quarter of 2017.

On February 9, 2018, Enable declared a quarterly cash distribution of $0.625 per Series A Preferred Unit for the quarter ended
December 31, 2017. Accordingly, CenterPoint Energy expects to receive a cash distribution of approximately $9 million from
Enable in the first quarter of 2018 to be made with respect to CenterPoint Energy’s investment in Series A Preferred Units of
Enable for the fourth quarter of 2017.

Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure

None.

Item 9A. Controls and Procedures

Disclosure Controls And Procedures

In accordance with Exchange Act Rules 13a-15 and 15d-15, we carried out an evaluation, under the supervision and with the
participation of management, including our principal executive officer and principal financial officer, of the effectiveness of our
disclosure controls and procedures as of the end of the period covered by this report. Based on that evaluation, our principal
executive officer and principal financial officer concluded that our disclosure controls and procedures were effective as of
December 31, 2017 to provide assurance that information required to be disclosed in our reports filed or submitted under the
Exchange Act is recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange
Commission’s rules and forms 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 disclosure.

There has been no change in our internal controls over financial reporting that occurred during the three months ended
December 31, 2017 that has materially affected, or is reasonably likely to materially affect, our internal controls over financial
reporting.

125

Management’s Annual Report on Internal Control over Financial Reporting

Our management is responsible for establishing and maintaining adequate internal control over financial reporting. Internal
control over financial reporting is defined in Rule 13a-15(f) or 15d-15(f) promulgated under the Securities Exchange Act of 1934
as a process designed by, or under the supervision of, the company’s principal executive and principal financial officers and effected
by the company’s board of directors, management and other personnel, 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 and includes those policies and procedures that:

•

Pertain to the maintenance of records that in reasonable detail accurately and fairly reflect the transactions and dispositions
of the assets of the company;

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 being
made only in accordance with authorizations of management and directors of the company; and

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.

Management has designed its internal control over financial reporting to provide reasonable assurance regarding the reliability
of financial reporting and the preparation of financial statements in accordance with accounting principles generally accepted in
the United States of America. Management’s assessment included review and testing of both the design effectiveness and operating
effectiveness of controls over all relevant assertions related to all significant accounts and disclosures in the financial statements.

All internal control systems, no matter how well designed, have inherent limitations. Therefore, even those systems determined
to be effective can provide only reasonable assurance with respect to financial statement preparation and presentation. 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.

Under the supervision and with the participation of our management, including our principal executive officer and principal
financial officer, we conducted an evaluation of the effectiveness of our internal control over financial reporting based on the
framework in Internal Control — Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the
Treadway Commission. Based on our evaluation under the framework in Internal Control — Integrated Framework (2013), our
management has concluded that our internal control over financial reporting was effective as of December 31, 2017.

Deloitte & Touche LLP, the Company’s independent registered public accounting firm, has issued an attestation report on the

effectiveness of our internal control over financial reporting as of December 31, 2017 which is set forth below.

126

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and Shareholders of
CenterPoint Energy, Inc.
Houston, Texas

Opinion on Internal Control over Financial Reporting

We have audited the internal control over financial reporting of CenterPoint Energy, Inc. and subsidiaries (the “Company”)
as of December 31, 2017, 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 Company maintained, in all material
respects, effective internal control over financial reporting as of December 31, 2017, based on criteria established in Internal
Control - Integrated Framework (2013) issued by COSO.

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States)
(PCAOB), the consolidated financial statements as of and for the year ended December 31, 2017, of the Company and our report
dated February 22, 2018, expressed an unqualified opinion on those financial statements.

Basis for Opinion

The Company’s management is responsible for maintaining effective internal control over financial reporting and for its
assessment of the effectiveness of internal control over financial reporting, included in the accompanying Management’s Annual
Report on Internal Control over Financial Reporting. Our responsibility is to express an opinion on the Company’s internal control
over financial reporting based on our audit. We are a public accounting firm registered with the PCAOB and are required to be
independent with respect to the Company 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 audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform
the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all
material respects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk
that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the
assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe that our audit
provides a reasonable basis for our opinion.

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
(1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions
of the assets of the company; (2) 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 being made only in accordance with authorizations of management and directors of the company; and (3) 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/ DELOITTE & TOUCHE LLP

Houston, Texas
February 22, 2018

127

Item 9B. Other Information

Compensatory Arrangements of Certain Officers

Amendments to Forms of Award Agreements under Long-Term Incentive Plan

On February 21, 2018, the Compensation Committee of the Board of Directors of CenterPoint Energy approved new forms

of award agreements under CenterPoint Energy’s LTIP for performance share awards and restricted stock unit awards.

Among other things, the newly approved forms of award agreements for officers and director employees provide that a
“retirement eligible” (age 55 or greater with at least five years of service) participant, who meets the requirements for enhanced
retirement as specified under the agreement will fully vest in the award, subject, in the case of performance share awards, to the
achievement of the relevant performance metrics. The requirements for enhanced retirement include having a sum of age and
years of employment equal to 65 or greater, providing at least six months’ written notice of retirement, providing a transition plan
and retiring on or after the January 1 immediately following the grant (for restricted stock units) or the first anniversary of the
beginning of the designated performance cycle (for performance share awards). In addition, for officers subject to Section 16 of
the Exchange Act, eligibility for enhanced retirement is subject to approval by the Compensation Committee.

In connection with a change in control of CenterPoint Energy (as defined in the LTIP), the newly approved forms of award
agreements provide for full vesting if (a) such awards are not assumed or continued, or substituted with a substantially equivalent
award, by the surviving or successor entity, or (b) the award holder is terminated (other than due to death, disability, voluntary
resignation or for cause) within two years after the date upon which such change in control occurred.

In addition, the newly approved forms of award agreements provide for vesting upon death or termination due to disability.
The newly approved forms of award agreements also include restrictive covenants (confidentiality, non-solicitation and non-
competition provisions) that provide for forfeiture of unpaid awards and return of paid awards upon violation.

The description of the forms of award agreements, as amended, is qualified in its entirety by reference to the full text of the
forms of performance share award and restricted stock unit award agreements, which are included as Exhibits 10(q)(2), 10(q)(3),
10(q)(5) and 10(q)(7) hereto and incorporated by reference herein.

With respect to the newly approved form of award agreement for restricted stock unit awards (retention) only, such agreement
has been updated solely for purposes of the change in control and restrictive covenant provisions described above. The description
of the form of award agreement for restricted stock unit awards (retention), as amended, is qualified in its entirety by reference
to the full text of the form of restricted stock unit award agreement (retention), which is included as Exhibit 10(q)(6) hereto and
incorporated by reference herein.

Item 10. Directors, Executive Officers and Corporate Governance

PART III

The information called for by Item 10, to the extent not set forth in “Executive Officers” in Item 1, will be set forth in the
definitive proxy statement relating to CenterPoint Energy’s 2018 annual meeting of shareholders pursuant to SEC Regulation 14A.
Such definitive proxy statement relates to a meeting of shareholders involving the election of directors and the portions thereof
called for by Item 10 are incorporated herein by reference pursuant to Instruction G to Form 10-K.

Item 11. Executive Compensation

The information called for by Item 11 will be set forth in the definitive proxy statement relating to CenterPoint Energy’s 2018
annual meeting of shareholders pursuant to SEC Regulation 14A. Such definitive proxy statement relates to a meeting of
shareholders involving the election of directors and the portions thereof called for by Item 11 are incorporated herein by reference
pursuant to Instruction G to Form 10-K.

128

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

The information called for by Item 12 will be set forth in the definitive proxy statement relating to CenterPoint Energy’s 2018
annual meeting of shareholders pursuant to SEC Regulation 14A. Such definitive proxy statement relates to a meeting of
shareholders involving the election of directors and the portions thereof called for by Item 12 are incorporated herein by reference
pursuant to Instruction G to Form 10-K.

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

The information called for by Item 13 will be set forth in the definitive proxy statement relating to CenterPoint Energy’s 2018
annual meeting of shareholders pursuant to SEC Regulation 14A. Such definitive proxy statement relates to a meeting of
shareholders involving the election of directors and the portions thereof called for by Item 13 are incorporated herein by reference
pursuant to Instruction G to Form 10-K.

Item 14. Principal Accounting Fees and Services

The information called for by Item 14 will be set forth in the definitive proxy statement relating to CenterPoint Energy’s 2018
annual meeting of shareholders pursuant to SEC Regulation 14A. Such definitive proxy statement relates to a meeting of
shareholders involving the election of directors and the portions thereof called for by Item 14 are incorporated herein by reference
pursuant to Instruction G to Form 10-K.

Item 15. Exhibits and Financial Statement Schedules

(a)(1) Financial Statements.

PART IV

Report of Independent Registered Public Accounting Firm.............................................................................................
Statements of Consolidated Income for the Three Years Ended December 31, 2017......................................................
Statements of Consolidated Comprehensive Income for the Three Years Ended December 31, 2017............................
Consolidated Balance Sheets as of December 31, 2017 and 2016 ...................................................................................
Statements of Consolidated Cash Flows for the Three Years Ended December 31, 2017 ...............................................
Statements of Consolidated Shareholders’ Equity for the Three Years Ended December 31, 2017 ................................
Notes to Consolidated Financial Statements ....................................................................................................................

The financial statements of Enable Midstream Partners, LP required pursuant to Rule 3-09 of Regulation S-X are included in

CenterPoint Energy’s Annual Report on Form 10-K as Exhibit 99.1.

(a)(2) Financial Statement Schedules for the Three Years Ended December 31, 2017.

The following schedules are omitted because of the absence of the conditions under which they are required or because the

required information is included in the financial statements:

I, II, III, IV and V.

(a)(3) Exhibits.

See Index of Exhibits in CenterPoint Energy’s Annual Report on Form 10-K for the year ended December 31, 2017 filed with
the SEC on February 22, 2018, which can be found on CenterPoint Energy’s website at www.centerpointenergy.com/investors
and at www.sec.gov.

Item 16. Form 10-K Summary

None.

129

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, in the City of Houston, the State of Texas, on
the 22nd day of February, 2018.

SIGNATURES

CENTERPOINT ENERGY, INC.
(Registrant)

By: /s/ Scott M. Prochazka
Scott M. Prochazka
President and Chief Executive Officer

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 indicated on February 22, 2018.

Signature

/s/ SCOTT M. PROCHAZKA

Scott M. Prochazka

/s/ WILLIAM D. ROGERS

William D. Rogers

/s/ KRISTIE L. COLVIN

Kristie L. Colvin

/s/ MILTON CARROLL

Milton Carroll

/s/ MICHAEL P. JOHNSON

Michael P. Johnson

/s/ JANIECE M. LONGORIA

Janiece M. Longoria

/s/ SCOTT J. MCLEAN

Scott J. McLean

/s/ THEODORE F. POUND

Theodore F. Pound

/s/ SUSAN O. RHENEY

Susan O. Rheney

/s/ PHILLIP R. SMITH

Phillip R. Smith

/s/ JOHN W. SOMERHALDER II

John W. Somerhalder II

/s/ PETER S. WAREING

Peter S. Wareing

Title

President, Chief Executive Officer and

Director (Principal Executive Officer and Director)

Executive Vice President and Chief

Financial Officer (Principal Financial Officer)

Senior Vice President and Chief

Accounting Officer (Principal Accounting Officer)

Executive Chairman of the Board of Directors

Director

130

CENTERPOINT ENERGY, INC. AND SUBSIDIARIES

COMPUTATION OF RATIOS OF EARNINGS TO FIXED CHARGES

Exhibit 12

Income (loss) before extraordinary item (2) (3) ........... $
Equity in (earnings) losses of unconsolidated

affiliates, net of distributions..................................
Income tax expense (benefit) .....................................
Capitalized interest.....................................................

Fixed charges, as defined:
Interest........................................................................
Capitalized interest.....................................................
Interest component of rentals charged to operating

expense ...................................................................
Total fixed charges .....................................................

2017 (1)

2016

2015 (2)

2014 (3)

2013 (3)

1,792

432

(In millions)
$

(692) $

611

311

32
(729)
(9)
1,086

390
9

3
402

89
254
(8)
767

429
8

3
440

1,927
(438)
(10)
787

457
10

3
470

(2)
274
(11)
872

471
11

4
486

(58)
470
(11)
712

484
11

7
502

Earnings, as defined ................................................... $

1,488

1,207

1,257

1,358

1,214

Ratio of earnings to fixed charges .............................

3.70

2.74

2.67

2.79

2.42

(1) Net income for the year ended December 31, 2017 includes a reduction in income taxes of $1,113 million due to tax

reform. See Note 14 for further discussion of the impacts of tax reform implementation.

(2) Net income for the year ended December 31, 2015 includes a $1,633 million loss related to CenterPoint Energy's

investment in Enable. See Note 10 for further discussion of CenterPoint Energy's investment in Enable.

(3) Excluded from the computation of fixed charges for the years ended December 31, 2014, and 2013 is interest expense

of $3 million and interest income of $6 million respectively, which is included in income tax expense.

131

Investor Information

ANNUAL MEETING
The 2018 Annual Meeting of Shareholders will be
held on Thursday, April 26, at 9 a.m. CDT in the
CenterPoint Energy Tower auditorium, 1111 Louisiana
Street, Houston, TX. Shareholders who hold shares
of CenterPoint Energy at the close of business on
March 1, 2018, will receive notice of the meeting and
will be eligible to vote.

CORPORATE OFFICE
STREET ADDRESS
CenterPoint Energy, Inc.
1111 Louisiana Street
Houston, TX 77002

MAILING ADDRESS
P.O. Box 4567
Houston, TX 77210-4567
Telephone: 713-207-1111
CenterPointEnergy.com

AUDITORS
Independent Registered Public Accounting Firm
Deloitte & Touche LLP
Houston, TX

INVESTOR SERVICES
If you have questions about your CenterPoint Energy
investor account, please contact our Transfer Agent:
Broadridge Corporate Issuer Solutions, Inc.
P.O. Box 1342
Brentwood, NY 11717
http://shareholder.broadridge.com/cnp
Toll Free: 800-231-6406

Investor Services, online tools and a list of publications
can be found on the company’s website at
Investors.CenterPointEnergy.com.

Investor Services representatives are available from
8 a.m. to 5 p.m. CDT, Monday through Friday, to assist
with questions about CenterPoint Energy common
stock or enrollment in the CenterPoint Energy Investor’s
Choice Plan.

The Investor’s Choice Plan provides easy, inexpensive
investment options, including direct purchase and
sale of CenterPoint Energy common stock; dividend
reinvestment; statement-based accounting; and monthly
or quarterly automatic investing by electronic transfer.
You can become a registered CenterPoint Energy
shareholder by making an initial investment of at least
$250 through Investor’s Choice.

INFORMATION REQUESTS
Download or call 888-468-3020 toll free for additional
copies of our:
2017 Annual Report and Form 10-K
2018 Proxy Statement

DIVIDEND PAYMENTS
Common stock dividends are generally paid quarterly in
March, June, September and December. Dividends are
subject to declaration by the board of directors, which
establishes the amount of each quarterly common stock
dividend and fixes the record and payment dates.

INSTITUTIONAL INVESTORS
Security analysts and other investment professionals
should contact David Mordy, Investor Relations director,
at 713-207-6500.

Design: Savage Brands, Houston, TX

STOCK LISTING
CenterPoint Energy, Inc. common stock is traded under the symbol CNP on the New York Stock Exchange and Chicago
Stock Exchange.

CAUTIONARY STATEMENT AND RISK FACTORS
Certain disclosures in this annual report may be considered “forward-looking statements” within the meaning of the
Private Securities Litigation Reform Act of 1995. The “cautionary statement” on page vi of CenterPoint Energy’s Form 10-K
for the fiscal year ended December 31, 2017, and the disclosure referenced therein should be read in conjunction with the
forward-looking statements. Our business is subject to risk and uncertainty. Please refer to our risk factors beginning on
page 17 of our Form 10-K.

RECONCILIATION OF NET INCOME AND DILUTED EPS TO THE BASIS USED
IN PROVIDING 2017 AND 2016 ANNUAL EARNINGS GUIDANCE

TWELVE MONTHS ENDED

DECEMBER 31, 2017

DECEMBER 31, 2016

NET INCOME

DILUTED
EPS

NET INCOME

DILUTED
EPS

(IN MILLIONS, EXCEPT DILUTED EPS)

Consolidated net income and diluted EPS as reported
Midstream Investments

$ 1,792
(675)

4.13
(1.56)

$ 432
(121)

Utility Operations(1)

1,117

2.57

311

1.00
(0.28)

0.72

Timing effects impacting CES(2):
Mark-to-market (gains) losses (net of taxes of $29 and $8)(3)

(50)

(0.12)

0.03

ZENS-related mark-to-market (gains) losses:
Marketable securities (net of taxes of $3 and $114)(3) (4)

Indexed debt securities (net of taxes of $17 and $145)(3) (5)

(4)
(32)

(0.01)
(0.07)

(212)
268

(0.49)
0.62

Utility operations earnings on an adjusted guidance basis

1,031

$ 2.37

$ 380

$ 0.88

Adjusted net income and adjusted diluted EPS used in

providing earnings guidance:

Utility Operations on a guidance basis
Midstream Investments

1,031
675

$ 2.37
1.56

$ 380
121

$ 0.88
0.28

Consolidated on a guidance basis

$ 1,706

$ 3.93

501

1.16

Benefit from tax reform(6)
Utility
Midstream

Total benefit from tax reform

(599)
(514)

(1,113)

(1.38)
(1.18)

(2.56)

–
–

–

–
–

–

Utility Operations on a guidance basis,
excluding benefit from tax reform

Midstream Investments excluding benefit from tax reform

$ 432
161
$

$ 0.99
$ 0.38

$ 380
121
$

$ 0.88
$ 0.28

Consolidated on a guidance basis, excluding benefit from tax reform $ 593

1.37

501

1.16

(1) CenterPoint Energy earnings excluding Midstream Investments
(2) Energy Services segment
(3) Taxes are computed based on the impact removing such item would have on tax expense
(4) As of May 18, 2016, comprised of Time Warner Inc., Charter Communications, Inc. and Time Inc. Prior to May 18, 2016, comprised of

Time Warner Inc., Time Warner Cable Inc. and Time Inc.

(5) 2016 includes amount associated with the Charter Communications, Inc. and Time Warner Cable Inc. merger

2015 includes amount associated with Verizon tender offer for AOL, Inc common stock

(6) Tax reform legislation informally called the Tax Cuts and Jobs Act of 2017

USE OF NON-GAAP FINANCIAL MEASURES

In addition to presenting its financial results in accordance with GAAP, including presentation of net income and diluted EPS, CenterPoint Energy
also provides guidance based on adjusted net income and adjusted diluted EPS, which are non-GAAP financial measures. Generally, a non-GAAP
financial measure is a numerical measure of a company’s historical or future financial performance that excludes or includes amounts that are not
normally excluded or included in the most directly comparable GAAP financial measure. CenterPoint Energy’s adjusted net income and adjusted
diluted EPS calculation excludes from net income and diluted EPS, respectively, the impact of ZENS and related securities and mark-to-market
gains or losses resulting from its Energy Services business. Also, this presentation includes adjusted net income and adjusted diluted EPS, further
adjusted for the tax benefit associated with the Tax Cuts and Jobs Act of 2017.

Management evaluates CenterPoint Energy’s financial performance in part based on adjusted net income and adjusted diluted EPS and believes
that presenting these non-GAAP financial measures enhances an investor’s understanding of CenterPoint Energy’s overall financial performance
by providing an additional meaningful and relevant comparison of current and anticipated future results across periods. Management believes the
adjustments made in these non-GAAP financial measures exclude or include items, as applicable, to most accurately reflect CenterPoint Energy’s
business performance. CenterPoint Energy’s adjusted net income and adjusted diluted EPS non-GAAP financial measures should be considered as
a supplement to, and not as a substitute for, or superior to, net income and diluted EPS, which respectively are the most directly comparable GAAP
financial measures. These non-GAAP financial measures also may be different than non-GAAP financial measures used by other companies.

CNP_AR_prod_0307.indd 10

3/7/18 2:50 PM

1111 Louisiana Street
Houston, TX 77002
CenterPointEnergy.com

www.facebook.com/CenterPointEnergy

@energyinsights

@cnpalerts

www.youtube.com/centerpointenergyvid

www.linkedin.com/company/centerpoint-energy

CNP_AR_prod_0307.indd 11

3/7/18 2:50 PM