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Clean Energy Fuels Corp.
Annual Report 2019

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FY2019 Annual Report · Clean Energy Fuels Corp.
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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 

 

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

For the fiscal year ended: December 31, 2019 
or 

Commission File Number: 001-33480 

CLEAN ENERGY FUELS CORP. 

(Exact name of registrant as specified in its charter) 

Delaware 
(State or other jurisdiction of incorporation or organization) 

33-0968580 
(IRS Employer Identification No.) 

4675 MacArthur Court, Suite 800, Newport Beach, CA 92660  
(Address of principal executive offices, including zip code) 
(949) 437-1000  
(Registrant’s telephone number, including area code) 

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

Title of each class 

Trading Symbol(s) 

Name of each exchange on which registered 

Common stock, $0.0001 par value per share 

CLNE 

The Nasdaq Stock Market LLC 

(Nasdaq Global Select Market) 

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

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes       No   

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Yes       No   

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the 
preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 
90 days. Yes       No   

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-

T (§229.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes       No   

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging 
growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the 
Exchange Act. 

Large accelerated filer    

   Accelerated filer   

   Non-accelerated filer   

   Smaller reporting company       Emerging growth company   

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised 

financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). Yes       No   

The aggregate market value of the voting stock held by non-affiliates of the registrant as of June 28, 2019, the last business day of the registrant’s most recently 
completed  second  fiscal  quarter,  was  approximately  $535,652,621  based on  the  closing  price  of  the  registrant’s  common  stock  of  $2.67  per  share  on  that  date.  The 
treatment of persons as affiliates of the registrant for purposes of this calculation is not, and shall not be considered, a determination as to whether any such person is an 
affiliate of the registrant for any other purpose. 

As of March 4, 2020, there were 205,583,627 shares of the registrant’s common stock, par value $0.0001 per share, issued and outstanding. 

DOCUMENTS INCORPORATED BY REFERENCE 

Portions of the registrant’s definitive proxy statement for its 2020 annual meeting of stockholders are incorporated by reference in Part III of this report. 

 
 
 
 
   
   
 
 
 
 
 
     
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Clean Energy Fuels Corp. 

Annual Report on Form 10-K 

For the Fiscal Year Ended December 31, 2019 

TABLE OF CONTENTS 

Cautionary Note Regarding Forward-Looking Statements 

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

Part II 
Item 5. 

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

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

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

  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 
Item 10. 
Item 11. 
Item 12. 

  Directors, Executive Officers and Corporate Governance 
  Executive Compensation 

Security Ownership of Certain Beneficial Owners and Management and Related Stockholder 
Matters 

Item 13. 
Item 14. 

  Certain Relationships and Related Transactions and Director Independence 
  Principal Accountant Fees and Services 

Part IV 
Item 15. 
Item 16. 

  Exhibits and Financial Statement Schedules 
  Form 10-K Summary 

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CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS 

This annual report on Form 10-K contains “forward-looking statements” within the meaning of Section 27A of the 
Securities Act of 1933, as amended (the “Securities Act”), and Section 21E of the Securities Exchange Act of 1934, as 
amended (the “Exchange Act”). Forward-looking statements are statements other than historical facts. These statements 
relate  to  future  events  or  circumstances  or  our  future  performance,  and  they  are  based  on  our  current  assumptions, 
expectations and beliefs concerning future developments and their potential effect on our business. In some cases, you can 
identify  forward-looking  statements  by  the  following  words:  “if,”  “may,”  “might,”  “shall,”  “will,”  “can,”  “could,” 
“would,”  “should,”  “expect,”  “intend,”  “plan,”  “goal,”  “objective,”  “initiative,”  “anticipate,”  “believe,”  “estimate,” 
“predict,”  “project,”  “forecast,”  “potential,” “continue,”  “ongoing”  or  the  negative  of  these  terms  or  other  comparable 
terminology, although the absence of these words does not mean that a statement is not forward-looking. The forward-
looking statements we make in this report include statements about, among other things: 

•  The willingness of fleets and fleet vehicle operators to adopt natural gas vehicles, particularly in light of operators’ 
competing general business concerns and possible lack of demand for such adoption from their customers and 
drivers; 

•  Potential adoption of government policies or programs or increased publicity or popular sentiment in favor of 
vehicles or vehicle fuels other than natural gas, including long-standing support for gasoline and diesel-powered 
vehicles and growing support for electric and hydrogen-powered vehicles; 

•  Our expectations regarding the market’s perception of the benefits of conventional natural gas and renewable 
natural gas (“RNG”) relative to gasoline and diesel and other alternative vehicle fuels, including with respect to 
factors such as supply, cost savings, environmental benefits and safety; 

•  Projections regarding natural gas vehicle cost, fuel usage, availability, quality, safety, convenience (to fuel and 
service), design, performance, and operator perception with respect to these factors, generally and in our key 
customer markets and relative to comparable vehicles powered by other fuels; 

•  Our expectations regarding the development, production, cost, availability, performance, sales and marketing and 
reputation of natural gas engines that are well-suited for the vehicles used in our key customer markets, including 
heavy-duty trucks and other fleets; 

•  Future supply, demand, use and prices of crude oil, gasoline, diesel, natural gas and other vehicle fuels, such as 

electricity, hydrogen, renewable diesel, biodiesel and ethanol; 

•  Expected  rates  and  levels  of  adoption  of  RNG,  compressed  natural  gas  (“CNG”)  and  liquefied  natural  gas 
(“LNG”) as a vehicle fuel, and our ability to capture a significant share of these markets if and when they grow; 

•  Our  expectations  regarding  the  customer  and geographic  markets  that are  well-suited  for,  and  show  the  most 

promise for adoption of, natural gas as a vehicle fuel; 

•  Our ability to implement our business plans and their level of success, including, among others, our goal of fueling 
more natural gas heavy-duty trucks and our recently launched Zero Now truck financing program designed to 
facilitate our achievement of this objective; 

•  The competitive environment in which we operate, including predictions of increasing competition in the market 
for  vehicle  fuels  generally,  and  the  nature  and  impact  of  competitive  developments  in  this  market,  including 
improvements in or perceived advantages of non-natural gas vehicle fuels or engines powered by these fuels; 

•  The availability and effect on our business of environmental, tax or other government regulations, programs or 
incentives that promote natural gas or other alternatives as a vehicle fuel, such as, for instance, a federal alternative 
fuels tax credit (“AFTC”) and the programs under which we generate credits by selling conventional natural gas 
and RNG as a vehicle fuel, including Renewable Identification Numbers (“RINs” or “RIN Credits”) under the 

2 

federal Renewable Fuel Standard (“RFS”) Phase 2 and credits under the California and Oregon Low Carbon Fuel 
Standards (collectively, “LCFS Credits”); 

•  The impact of, or potential for changes to, emissions requirements applicable to vehicles powered by gasoline, 
diesel, natural gas or other vehicle fuels, as well as emissions and other environmental regulations, pressures and 
bans on crude oil, fueling stations and drilling, production, importing or transportation methods, distribution and 
fueling stations for these fuels; 

•  Developments in our products and services offering, including any new business activities we may pursue in the 

future; 

•  The  success  and  importance  of  any  acquisitions,  divestitures,  investments  or  other  strategic  relationships  or 

transactions; 

•  The potential impact on our debt instruments and our business of developments regarding LIBOR, including the 

potential phasing out of this metric; 

•  General political, regulatory, economic and market conditions; 

•  Our need for and ability to access additional capital to fund our business or repay our debt, through selling assets 

or pursuing equity, debt or other types of financing; 

•  Our  expectations  regarding  our  liquidity,  including  our  projected  cash  balances,  expense  levels,  capital 

expenditures and other funding requirements; 

•  Our expectations regarding our operating performance, including trends in our business and our industry that may 

impact our future results; 

•  Predictions about the effect on our business of potential operational events, including, among other things, any 
changes to our management team; any IT or cybersecurity breaches; any equipment defects, malfunctions, failures 
and misuses; or any severe weather events that effect our station construction or other activities; 

•  The  outcome  and  impact  on  our  liquidity,  performance  and  reputation  of  any  pending  or  future  government 

actions, audits or other legal proceedings; and 

•  The impact of the above factors and other future events on the market price and trading volume of our common 

stock. 

The  preceding  list  is  not  intended  to  be  an  exhaustive  list  of  all  of  the  topics  addressed  by  our  forward-looking 
statements.  Although  the  forward-looking  statements  we  make  reflect  our  good  faith  judgment  based  on  available 
information,  they  are  only  predictions  of  future  events  and  conditions.  Accordingly,  our  forward-looking  statements 
involve known and unknown risks, uncertainties and other factors that may cause our or our industry’s actual results, levels 
of activity, performance or achievements to be materially different from any future results, levels of activity, performance 
or achievements expressed or implied by our forward-looking statements. Factors that might cause or contribute to such 
differences include, among others, those discussed in Item 1A. Risk Factors of this report, as such factors may be amended, 
supplemented or superseded from time to time by other reports we file with the Securities and Exchange Commission (the 
“SEC”). In addition, we operate in a competitive and rapidly evolving industry in which new risks emerge from time to 
time, and it is not possible for us to predict all of the risks we may face, nor can we assess the impact of all factors on our 
business  or  the  extent  to  which  any  factor  or  combination  of  factors  could  cause  actual  results  to  differ  from  our 
expectations. As a result of these and other potential risks and uncertainties, our forward-looking statements should not be 
relied on or viewed as guarantees of future events or conditions. 

All of our forward-looking statements speak only as of the date they are made and, except as required by law, we 
undertake no obligation to update publicly any forward-looking statements for any reason, including to conform these 
statements  to  actual  results  or  to  changes  in  our  expectations.  You  should,  however,  review  the  factors  and  risks  we 

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describe in the reports we will file from time to time with the SEC for the most recent information about our forward-
looking statements and the risks and uncertainties related to these statements. 

We qualify all of our forward-looking statements by this cautionary note. 

* * * * * * * 

Unless the context indicates otherwise, all references to “Clean Energy,” our “Company,” “we,” “us,” or “our” in 

this report refer to Clean Energy Fuels Corp., together with its majority and wholly owned subsidiaries. 

We own registered or unregistered trademark or service mark rights to Redeem™, NGV Easy Bay™, Clean Energy™, 
Clean Energy Renewables™, Zero Now, and Clean Energy Cryogenics™. Although we do not use the “®” or “™” symbol 
in each instance in which one of our trademarks appears in this report, this should not be construed as any indication that 
we will not assert our rights thereto to the fullest extent under applicable law. Any other service marks, trademarks and 
trade names appearing in this report are the property of their respective owners. 

Investors and others should note that we disseminate information to the public about our Company, our products, 
services and other matters through various channels, including our website (www.cleanenergyfuels.com), SEC filings, 
press  releases,  public  conference  calls  and  webcasts,  in  order  to  achieve  broad,  non-exclusionary  distribution  of 
information to the public. We encourage investors and others to review the information we make public through these 
channels, as such information could be deemed to be material information. 

4 

 
 
Item 1.   Business. 

Overview 

PART I 

We are North America’s leading provider of the cleanest fuel for the transportation market, based on the number of 
stations operated and the amount of gasoline gallon equivalents (“GGEs”) of RNG, CNG and LNG delivered. Through 
our sales of Redeem™ RNG, which is derived from biogenic methane produced by the breakdown of organic waste, we 
help thousands of vehicles, from airport shuttles to city buses to waste and heavy-duty trucks, to reduce their amount of 
climate-harming greenhouse gas by at least 70% and up to 300% depending on the source of the RNG feedstock. Redeem 
RNG is delivered as CNG and LNG; sales of our Redeem RNG have increased dramatically, from 13.0 million GGEs in 
2013 (the year we introduced Redeem RNG to the vehicle fuel market) to 143.3 million GGEs in 2019. 

Our  principal  business  is  supplying  RNG,  CNG  and  LNG  for  medium  and  heavy-duty  vehicles  and  providing 
operation and maintenance (“O&M”) services for public and private vehicle fleet customer stations. As a comprehensive 
solution  provider,  we  also  design,  build,  operate  and  maintain  fueling  stations;  sell  and  service  natural  gas  fueling 
compressors  and  other  equipment  used  in  CNG  stations  and  LNG  stations;  offer  assessment,  design  and  modification 
solutions  to  provide  operators  with  code-compliant  service  and  maintenance  facilities  for  natural  gas  vehicle  fleets; 
transport and sell CNG and LNG via “virtual” natural gas pipelines and interconnects; procure and sell RNG; sell tradable 
credits  we  generate  by  selling  RNG  and  conventional  natural  gas  as  a  vehicle  fuel,  including  RIN  Credits  and  LCFS 
Credits; help our customers acquire and finance natural gas vehicles; and obtain federal, state and local tax credits, grants 
and incentives. In addition, before March 31, 2017, we produced RNG at our own production facilities (which we sold, 
along with certain of our other RNG production assets to BP Products North America (“BP”), in a transaction we refer to 
as the “BP Transaction”), and before December 29, 2017, we manufactured natural gas fueling compressors and other 
equipment used in CNG stations (which we combined with SAFE S.p.A., the natural gas fueling compressor subsidiary of 
Landi Renzo S.p.A. (“LR”) in a newly formed company, SAFE&CEC S.r.l., in a transaction we refer to as the “CEC 
Combination”). 

We serve fleet vehicle operators in a variety of markets, including heavy-duty trucking, airports, refuse, public transit, 
industrial and institutional energy users, and government fleets. We believe these fleet markets will continue to present a 
growth opportunity for natural gas vehicle fuel for the foreseeable future. As of December 31, 2019, we serve over 1,000 
fleet customers operating over 48,000 natural gas vehicles, and we own, operate or supply approximately 550 natural gas 
fueling stations in 41 states in the United States and four provinces in Canada. We estimate our number of stations is 
approximately three times the number of CNG fueling stations operated by our largest competitor in today’s market, and 
we believe our natural gas fueling operations cover more states and provinces than any of our competitors. We believe we 
are the only company in the United States or Canada that provides RNG, CNG and LNG vehicle fuel on a significant scale. 

Market for RNG, CNG and LNG as a Vehicle Fuel 

Natural  Gas  Vehicles  for  America  (“NGV  America”)  estimates  that,  as  of  December  31,  2019,  there  were 
approximately  1,750  natural  gas  fueling  stations  in  the  United  States  and  more  than  175,000  natural  gas  vehicles  on 
American roads. 

We believe the following benefits of natural gas fuel drive the development of the market for RNG, CNG and LNG 

as a vehicle fuel in the United States: 

Cleaner.    RNG vehicle fuel has enhanced environmental benefits relative to gasoline and diesel vehicle fuels. The 
California Air Resources Board (“CARB”) has determined that RNG reduces the amount of climate-harming greenhouse 
gas by at least 70% and up to 300%, depending on the RNG feedstock, compared to gasoline and diesel. Simply put, RNG 
can be a carbon negative vehicle fuel 

In addition, natural gas produces fewer carbon dioxide emissions than any other fossil fuel when burned. CARB has 
concluded that vehicles fueled by conventional natural gas produce between 12% and 22% fewer greenhouse gas emissions 
than comparable gasoline and diesel fueled vehicles.  

5 

Further, natural gas engines now commercially available for heavy-duty, regional-haul, refuse, transit and vocational 
applications  have  been  certified  to  CARB  and  the  U.S.  Environmental  Protection Agency  (“EPA”) optional  low NOx 
emission  standard of  0.02 g/bhp-hr.  This means  that  these  engines  emit  90%  less  smog-forming  nitrogen  oxides  (also 
known as “NOx”) than the existing regulatory standards, making them the lowest certified ultra-low NOx emission engines 
in North America. We therefore believe vehicles equipped with ultra-low NOx engines that are fueled with RNG are the 
cleanest commercially available vehicles in North America (in terms of greenhouse gas emissions and NOx). 

We expect our sales of Redeem RNG and conventional natural gas to grow as more companies look to operate in an 
increasingly sustainable way. In addition to pressure from politicians, regulators and non-governmental organizations, the 
investment  community  has  dramatically  stepped  up  demands  on  companies  to  diminish  their  contributions  to  climate 
change.  We  believe  that  RNG  is  the  best  tool  available  today  to  reduce  climate-harming  greenhouse  gas  and  meet 
sustainability objectives. 

By way of example, in January 2020, Microsoft announced that it will be carbon negative by 2030, and that by 2050 
it will remove from the environment all the carbon Microsoft has emitted either directly or by electrical consumption since 
it was founded in 1975.  We believe that by 2027, Microsoft can be carbon negative and offset all of its post-1975 carbon 
emissions if it adopts 100% carbon negative RNG. 

Domestic  and Plentiful  Supply.     Technological  advances  in  production  have  unlocked supplies  of  RNG  and  vast 
conventional  natural  gas  reserves.  The  United  States  has  proven,  abundant  and  growing  reserves  of  natural  gas,  and 
produces the highest volume of natural gas in the world. 

Less Expensive.    The cost of RNG, CNG and LNG in the United States is less than the cost of crude oil on an energy 
equivalent basis. Based on projections from the U.S. Energy Information Administration, we believe RNG, CNG and LNG 
will remain cheaper than gasoline and diesel for the foreseeable future. In addition, because the price of the commodity 
makes up a smaller portion of the cost of a GGE of RNG, CNG or LNG relative to the commodity portion of the cost of a 
GGE of diesel  or gasoline,  the price of  a GGE of  RNG,  CNG or  LNG  is  less  sensitive  to  increases  in  the  underlying 
commodity cost. 

Safer.    As reported by NGV America, RNG, CNG and LNG are relatively safer than gasoline and diesel because 
they dissipate into the air when spilled or in the event of a vehicle accident. When released, RNG, CNG and LNG are also 
less combustible than gasoline or diesel because they ignite only at relatively high temperatures. The fuel tanks and systems 
used in natural gas vehicles are subjected to a number of federally required safety tests, such as fire, environmental hazard, 
burst pressure and crash testing, according to the U.S. Department of Transportation National Highway Traffic Safety 
Administration.  RNG,  CNG  and  LNG  are  stored  in  above-ground  tanks  and  therefore  will  not  contaminate  soil  or 
groundwater in the event of a spill or leak. 

Natural Gas Vehicles 

Natural gas vehicles use internal combustion engines similar to those used in gasoline- or diesel-powered vehicles, 
and the acceleration and other performance characteristics of natural gas vehicles are also similar to those of gasoline- or 
diesel-powered vehicles of the same weight and engine class. Natural gas vehicles, whether they run on RNG, CNG or 
LNG, are refueled using a hose and nozzle that makes an airtight seal with the vehicle’s fuel tank. 

Natural gas vehicles have engines specially tuned to run on natural gas fuels, which has a higher octane number than 
gasoline or diesel, and fuel tanks and lines specially designed to hold RNG, CNG and LNG and deliver it to the vehicle’s 
engine.  These  special  features,  including  principally  the  fuel  tanks  that  hold  RNG,  CNG  and  LNG,  cause  natural  gas 
vehicles  to  typically  cost  more  than  comparable  gasoline-  or  diesel-powered  vehicles.  Additionally,  for  heavy-duty 
vehicles,  spark-ignited  natural  gas  vehicles  operate  more  quietly  than  comparable  diesel-powered  vehicles.  Due  to 
improvements in diesel engine technology, natural gas vehicles may be somewhat less efficient than diesel vehicles in 
terms of miles per gallon, depending upon the application. 

Virtually any car, truck, bus or other vehicle is capable of being manufactured or modified to run on natural gas. Many 
types and models of heavy-, medium- and light-duty natural gas vehicles and engines are available in the United States 

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and Canada, including, among others, long-haul tractors, refuse trucks, regional tractors, transit buses, ready-mix trucks, 
delivery trucks, vocational work trucks, school buses, shuttles, passenger sedans, pickup trucks and cargo and passenger 
vans.  We  expect  additional  types  and  models  of  natural  gas  vehicles  to  become  available  if  adoption  of  RNG  and 
conventional natural gas as a vehicle fuel becomes more widespread in the United States. 

Our Products, Services and Other Business Activities 

Our principal products, services and other business activities are described below. Information about the revenue we 
receive from these activities is discussed in this report in Item 7. Management’s Discussion and Analysis of Results of 
Operations and Financial Condition. 

CNG Sales.    CNG is RNG and conventional natural gas that is compressed and dispensed in gaseous form. CNG is 
typically delivered by obtaining natural gas from local utilities or third-party marketers and then compressing and storing 
it at a fueling station and dispensing it directly into a vehicle. Some of the natural gas we obtain from third parties for CNG 
sales is purchased under take-or-pay contracts that require us to purchase minimum volumes of natural gas. 

We sell CNG for use as a vehicle fuel through fueling stations located on our customers’ properties and through our 
network  of  public  access  fueling  stations. Our  CNG  vehicle  fuel  sales  are  made  primarily  through  contracts  with  our 
customers. Under many of these contracts, pricing is determined on an index-plus basis, which is calculated by adding a 
margin and delivery cost to the local index or utility price for natural gas. As a result, CNG vehicle fuel sales determined 
by an index-plus methodology increase or decrease as a result of an increase or decrease in the cost of natural gas, including 
transportation charges, utility costs and other fees. The remainder of our CNG vehicle fuel sales are made on a per fill-up 
basis at prices we set at public access fueling stations based on prevailing market conditions. 

Through our subsidiary NG Advantage, LLC (“NG Advantage”), we also transport and sell CNG for non-vehicle 
purposes via virtual natural gas pipelines and interconnects. NG Advantage transports CNG to industrial and institutional 
energy users that do not have direct access to natural gas pipelines. NG Advantage also transports CNG between pipelines 
for  customers  that  desire  to  take  advantage  of  commodity  price  differences.  NG  Advantage  uses  a  fleet  of  113  high-
capacity tube trailers to transport CNG. 

LNG Production and Sales.    LNG is RNG and conventional natural gas that is cooled at a liquefaction facility to 
approximately -260 degrees Fahrenheit until it condenses into a liquid. We obtain LNG from our own liquefaction plants 
and from third-party suppliers. We own and operate LNG liquefaction plants near Boron, California and Houston, Texas, 
which we call the “Boron Plant” and the “Pickens Plant” respectively. The Boron Plant can produce 60.0 million gallons 
of LNG per year and has a dual tanker trailer loading system and a 1.8 million gallon storage tank that can hold up to 
1.5 million usable gallons. The Pickens Plant can produce 35.0 million gallons of LNG per year and includes a tanker 
trailer  loading  system  and  a  1.0 million  gallon  storage  tank  that  can  hold  up  to  840,000  usable  gallons.  In  2019,  we 
purchased 14.5% of our LNG from third-party suppliers and we produced the remainder of our LNG at our plants. 

We sell LNG for use as a vehicle fuel on a bulk basis to fleet customers, who often own and operate their fueling 
stations, and through our network of public access fueling stations. We deliver LNG via our fleet of 74 tanker trailers to 
fueling stations, where it is stored and then dispensed in liquid form into vehicles. We contract with third parties to provide 
tractors and drivers. The need to liquefy and transport LNG generally causes LNG to cost more than CNG. We sell LNG 
through supply contracts that are priced on an index-plus basis, such that LNG sales under these contracts increase or 
decrease as a result of an increase or decrease in the cost of natural gas. We also sell LNG vehicle fuel on a per fill-up 
basis at prices we set at public access fueling stations based on prevailing market conditions. Additionally, we sell LNG 
for non-vehicle purposes, including to customers who use LNG in oil fields, and for utility, industrial, marine and rail 
applications. 

RNG Sales.    RNG is delivered as CNG or LNG. It is produced from organic waste at landfills, animal waste digesters, 
wastewater  treatment  plants  and  other  locations.  RNG  is  injected  into  natural  gas  pipelines,  which  allows  RNG  to  be 
transported  to  vehicle  fueling  stations  where  it  can  be  compressed  and  dispensed  as  CNG,  and  to  LNG  liquefaction 
facilities where it is converted to LNG. We purchase RNG from BP and other third-party producers, and we sell that RNG 
for vehicle fuel use through our fueling infrastructure under the brand name Redeem™. 

7 

Sales of RINs and LCFS Credits.   We generate RIN Credits when we sell RNG for use as a vehicle fuel in the United 
States, and we generate LCFS Credits when we sell RNG and conventional natural gas for use as a vehicle fuel in California 
and Oregon. We sell these credits to third parties who need the RINs and LCFS Credits to comply with federal and state 
emissions compliance requirements. Generally, the amount of RINs and LCFS Credits we generate increases as we sell 
higher volumes of RNG and conventional natural gas as a vehicle fuel; however, the amount of credits we sell and our 
revenue from these sales can vary depending on a number of factors, including the market for these credits, which has 
been volatile and subject to significant price fluctuations in recent periods (in 2019 market prices for RINs were as high 
as approximately $1.90 and as low as approximately $0.50), any changes to the federal and state programs under which 
the credits are generated and sold, and our ability to strictly comply with these programs. 

O&M Services.   We perform O&M services for fueling stations that we do not own. For these services, we generally 
charge a fixed or a per-gallon fee based on the volume of fuel dispensed at the station. We have an operations team that 
performs preventive maintenance and is available to respond to service requests. 

Station Construction and Engineering.    We design and construct fueling stations and facility modifications and sell 
or lease some of these stations to our customers. We charge construction or other fees or lease rates based on the size and 
complexity  of  the  project.  Since  2008,  we  have  served  as  the  general  contractor  or  supervised  qualified  third-party 
contractors to build over 420 natural gas fueling stations. We use a combination of custom designed and off-the-shelf 
equipment to build fueling stations. Equipment for a CNG station typically consists of dryers, compressors, dispensers and 
storage tanks; equipment for a LNG station typically consists of storage tanks, pumps and dispensing equipment. Many of 
our  fueling  stations  have  separate  public  access  areas  for  retail  customers,  which  generally  have  the  look,  feel  and 
dispensing rates of gasoline and diesel fueling stations. We also offer assessment, design and modification solutions to 
provide operators with code-compliant service and maintenance facilities for natural gas vehicle fleets. For example, our 
NGV Easy Bay product is a natural gas vapor leak barrier developed specifically for natural gas vehicle facilities. 

Vehicle  Acquisition  and  Finance.     We  offer  vehicle  finance  services,  including  loans  and  leases,  to  help  our 
customers  acquire  natural  gas  vehicles.  As  appropriate,  we  apply  for  and  receive  federal,  state  and  local  incentives 
associated  with  natural  gas  vehicle  purchases  and  pass  these  benefits  through  to  our  customers.  We  may  also  secure 
vehicles to place with customers and/or pay deposits with respect to these vehicles before receiving a firm order from our 
customers, which we may be required to purchase if our customers fail to purchase the vehicle as anticipated. 

Grant Programs.    We apply for and help our fleet customers apply for federal, state and local grant programs in 
areas in which we operate. These programs can provide funding for natural gas vehicle conversions and purchases, natural 
gas fueling station construction and natural gas vehicle fuel sales. 

Former Activities.    Before March 31, 2017, we produced at our own production plants a portion of the RNG that we 
sold. On March 31, 2017 we completed the BP Transaction, in which we sold to BP certain assets related to this RNG 
production  business,  including  two  RNG  production  facilities,  a  50%  ownership  interest  in  joint  ventures  formed  to 
develop two new RNG production facilities, and third-party RNG supply contracts. 

Before December 29, 2017, we, through our former subsidiary IMW Industries Ltd. (formerly known as Clean Energy 
Compression Corp.) (“CEC”), manufactured natural gas fueling compressors and other equipment used in CNG stations. 
On December 29, 2017 we completed the CEC Combination, in which we combined CEC with SAFE S.p.A, the natural 
gas  fueling  compressor  subsidiary  of  LR,  in  a  new  company,  SAFE&CEC  S.r.l.  SAFE&CEC  S.r.l.  is  focused  on 
manufacturing,  selling  and  servicing  natural  gas  fueling  compressors  and  related  equipment  for  the  global  natural  gas 
fueling market. We and LR own 49% and 51%, respectively, of SAFE&CEC S.r.l. 

Customer Markets 

We  serve  customers  in  a  variety  of  markets,  including  trucking,  airports,  refuse,  public  transit,  industrial  and 
institutional energy users and government fleets. We believe these customer markets are well-suited for the adoption of 
natural gas vehicle fuel because they consume relatively high volumes of fuel, refuel at centralized locations or along well-
defined routes and/or are facing increasingly stringent emissions or other environmental requirements. During the years 

8 

ended December 31, 2017, 2018, and 2019, no single customer accounted for 10% or more of our total revenue. See Note 
22 for additional information 

Trucking. We believe heavy-duty trucking represents the greatest opportunity for natural gas to be used as a vehicle 
fuel in the United States, and as of December 31, 2019, we fuel over 4,000 heavy-duty trucks. Because these high-mileage 
vehicles consume substantial amounts of fuel, they can derive significant benefits from the lower cost of natural gas. We 
are focused on fueling more natural gas heavy-duty trucks, and many well-known shippers, manufacturers, retailers and 
other  truck  fleet  operators  have  started  to  adopt  natural  gas  fueled  trucks  to  move  their  freight.  Companies  that  have 
adopted  natural  gas  fueled  trucks  include  Pepsi  Frito-Lay,  FedEx,  Anheuser-Busch,  USPS,  Bimbo  Bakeries,  UPS, 
MillerCoors, Unilever, Kroger, P&G, KeHe and Owens Corning. 

Zero Now. To help facilitate the transition of trucking fleets to natural gas, we have launched the Zero Now truck 
financing program, which is intended to increase the deployment of the commercially available ultra-low NOx natural gas 
heavy-duty trucks in the United States and encourage these operators to fuel their trucks at our stations. The Zero Now 
program generally involves the following: 

•  One or more truck leasing or finance companies will lease or sell ultra-low NOx natural gas heavy-duty trucks to 
vehicle fleets pursuant to lease or sale agreements with the fleet operators and with us, providing for periodic 
payments by the fleet operators of amounts equal to the payments that will be made for the lease or purchase of 
an equivalent truck that operates on diesel fuel, and providing for payment by us of the incremental cost of the 
natural gas truck over and above the diesel-equivalent truck; and 

•  The  fleet  operators  participating  in  the  program  will  enter  into  fueling  agreements  with  us,  under  which  the 
operators will agree to purchase from us, and we will agree to supply, minimum monthly volumes of natural gas 
fuel at fixed prices (lower than diesel prices) in order to operate the trucks leased or purchased in the program 
and allow us to recoup our payment of the incremental cost of the natural gas trucks. 

We have entered into the following agreements to implement the Zero Now program: 

• 

• 

• 

In January 2019, we entered into a term credit agreement with Société Générale (“SG”), as lender, under which 
we are permitted to draw, from time to time, through the beginning of January 2022, up to an aggregate of $100.0 
million in order to satisfy our payment obligations for the incremental cost of natural gas trucks under the truck 
lease or sale agreements described above; 

In January 2019, we entered into a credit support agreement with Total Holdings USA Inc. (“THUSA”), a wholly 
owned  subsidiary  of  TOTAL  S.A.  (“TOTAL”)  (which  indirectly  through  another  of  its  subsidiaries,  holds 
approximately 25% of our outstanding common stock), pursuant to which THUSA has guaranteed our obligations 
under the term credit agreement with SG. In consideration for such guaranty, we have agreed to pay to THUSA 
a quarterly fee at a rate per annum equal to 10% of the average amount owed by us under the term credit agreement 
during the preceding quarter; and 

In October 2018, we entered into commodity swap arrangements with Total Gas & Power North America, an 
affiliate of TOTAL and THUSA, to manage diesel price fluctuation risks related to the natural gas fuel supply 
commitments we expect to make in our anticipated fueling agreements with fleet operators that participate in the 
Zero Now program. The swap arrangements cover five million diesel gallons of natural gas fuel volume annually 
from April 2019 through June 2024. 

For more information about the Zero Now program and the related agreements, see “Item 1A. Risk Factors” and Note 

13. 

In  addition,  we  are  supporting  the  growth  of  the  natural  gas  heavy-duty  truck  market  through  our  negotiation  of 
favorable CNG and LNG fuel tank pricing from manufacturers, which we are passing along to our customers, and our 
network of natural gas truck-friendly fueling stations (we refer to this network as “America’s Natural Gas Highway” or 

9 

“ANGH”), which we have built in key locations nationwide. Many existing ANGH stations are located at Pilot Travel 
Centers, the largest truck fueling operator in the United States. 

Airports. We estimate that vehicles serving airports in the United States, including airport delivery fleets, rental car 
and parking passenger shuttles and taxis, consume an aggregate of approximately two billion gallons of fuel per year. 
Additionally, many U.S. airports face emissions challenges and are under regulatory directives and political pressure to 
reduce pollution, particularly as part of any expansion plans. As a result, many of these airports have adopted various 
strategies to address tailpipe emissions, including rental car and hotel shuttle consolidation and requiring or encouraging 
service vehicle operators to switch their fleets to natural gas. To assist in this effort, airports are contracting with service 
providers to design, build and operate natural gas fueling stations in strategic locations on their properties. 

As  of  December 31,  2019,  we  serve  customers  at  39  airports,  including  Atlanta  Hartsfield  Jackson  International, 
Baltimore  Washington  International,  Dallas-Ft.  Worth  International,  Denver  International,  Dulles  International 
(Washington  D.C.),  George  Bush  International  (Houston),  Las  Vegas,  Logan  International  (Boston),  LaGuardia  (New 
York City), John F. Kennedy International (New York City), Los Angeles International, Newark International, Oakland 
International, Orlando, Phoenix Sky Harbor International, San Francisco International, San Diego International, SeaTac 
International (Seattle) and Tampa International. 

Refuse. According to INFORM, there are nearly 200,000 refuse trucks in the United States that collect and haul refuse 
and  recyclables,  which  collectively  consume  approximately  two  billion  gallons  of  fuel  per year.  We  estimate  that 
approximately 55% of new refuse trucks in 2019 operate on natural gas, up from approximately 3% of new refuse trucks 
in 2008. Refuse haulers are increasingly adopting trucks that run on RNG and CNG to realize operational savings and to 
address their customers’ demands for reduced emissions. 

As  of  December 31,  2019,  we  fuel  over  13,000  refuse  vehicles  for  customers  including  Waste  Management  and 
Republic Services, as well as other waste haulers such as Atlas Disposal, Burrtec, Recology, Waste Connections and Waste 
Pro, among others. We also provide vehicle fueling services to municipal refuse fleets, including fleets in Dallas, Los 
Angeles, San Antonio and New York City, among other locations. 

Public Transit. According to the American Public Transportation Association, there are over 66,000 municipal transit 
buses operating in the United States. In many areas, increasingly stringent emissions standards have limited the fueling 
options available to public transit operators. Also, transit agencies typically fuel at a central location and use high volumes 
of fuel. We estimate that transit agencies in the United States consume approximately 1.0 billion gallons of fuel per year. 
Many transit agencies have been early adopters of natural gas vehicles, and over 25% of existing transit buses and over 
35% of new transit buses operate on natural gas. 

As  of  December 31,  2019,  we  fuel  over  9,000  transit  vehicles  for  customers  including  Los  Angeles  County 
Metropolitan  Transit  Authority,  Foothill  Transit  (Los  Angeles  County,  California),  Orange  County  Transit  Authority, 
Santa Monica Big Blue Bus, Dallas Area Rapid Transit Phoenix Transit, New Jersey Transit, Jacksonville Transportation 
Authority, NICE Bus (Nassau County, New York) and Washington Metro Area Transportation Authority, as well as public 
transit customers in British Columbia. 

Industrial and Institutional Customers. NG Advantage uses its virtual natural gas pipelines and interconnects to serve 
a number of customers that do not have direct access to natural gas pipelines or desire to take advantage of commodity 
price differences. We also transport LNG to customers via virtual natural gas pipelines. 

Government  Fleets.  In  2017,  2018  and  2019,  contracts  with  government  entities,  such  as  municipal  transit  fleets, 

accounted for approximately 19%, 22% and 21% of our revenue, respectively. 

Our representative government fleet customers include the California Department of Transportation, State of New 
York, State of Colorado, City of New York, City of Denver, City and County of Los Angeles, City of Newport Beach, 
South Coast Air Quality Management District (Southern California region), City and County of San Francisco, City of 
Oakland, City and County of Dallas, City of Phoenix, The University of California, and Oklahoma State University. 

10 

Competition 

The market for vehicle fuels is highly competitive. We believe the biggest competition for RNG, CNG and LNG use 
as a vehicle fuel is gasoline and diesel because the vast majority of vehicles in our key markets are powered by these fuels. 
We also compete with suppliers of other alternative vehicle fuels, including renewable diesel, biodiesel and ethanol, as 
well  as  producers  and  fuelers  of  alternative  vehicles,  including  hybrid,  electric  and  hydrogen-powered  vehicles. 
Additionally,  our  stations  compete  directly  with  other  natural  gas  fueling  stations  and  indirectly  with  electric  vehicle 
charging stations and fueling stations for other vehicle fuels. 

A number of established businesses are in the market for natural gas and other alternatives for use as vehicle fuel, 
including alternative vehicle and alternative fuel companies, refuse collectors, industrial gas companies, truck stop and 
fuel station owners, fuel providers, utilities and their affiliates and other organizations. If the alternative vehicle fuel market 
grows in the future, then the number and type of participants in this market and their level of capital and other commitments 
to alternative vehicle fuel programs could increase. We believe there are approximately 20 competitors in the market for 
natural gas vehicle fuels in the U.S. and Canada, including: 

•  Marketers of RNG, including Element Markets, IOGEN, Shell, TruStar, Gain Clean Fuels and Love’s Trillium; 

•  Providers of CNG fuel infrastructure and fueling services, including Love’s Trillium, Gain Clean Fuels, TruStar 

Energy, and American Natural Gas; 

•  Fuel station owners, such as Kwik Trip, a company that owns CNG fueling stations in the Midwestern United 

States; 

•  Applied LNG Technology and Stabilis Energy, each of which distributes LNG; and 

•  Utilities  and  their  affiliates  in  several  states,  including  California,  Georgia,  Michigan,  New  Jersey,  North 
Carolina,  Utah  and  Washington,  which  own  and  operate  public  access  CNG  stations  that  compete  with  our 
stations and also compete with us for RNG supply. 

We also face high levels of competition with respect to our other business activities. For instance, we compete with 
many third parties for the rights to procure RNG from producers and for customers to purchase the RNG that we sell. In 
addition, we transport and sell CNG through NG Advantage’s virtual natural gas pipelines and interconnects and compete 
with other participants in this market, including Xpress Natural Gas, Certarus, Thigpen, OsComp Systems and Irving Ltd. 

We compete for vehicle fuel users based on demand for the type of fuel, which may be affected by a variety of factors, 
including,  among  others,  cost,  supply,  availability,  quality,  cleanliness  and  safety  of  the  fuel;  cost,  availability  and 
reputation of vehicles and engines; convenience and accessibility of fueling stations; and recognition of the brand. We 
believe we compare favorably with our competitors on the basis of these factors; however, some of our competitors have 
substantially greater financial, marketing and other resources than we have. As a result, these competitors may be able to 
respond more quickly to changes in customer preferences, legal requirements or other industry or regulatory trends; devote 
greater  resources  to  the  development,  promotion  and  sale  of  their  products;  adopt  more  aggressive  pricing  policies, 
dedicate  more  effort  to  infrastructure  and  systems  development  in  support  of  their  business  or  product  development 
activities; implement more robust or creative initiatives to advance consumer acceptance of their products; or exert more 
influence on the regulatory landscape that impacts the vehicle fuels market. 

We expect competition to increase in the vehicle fuels markets generally. In addition, if the demand for natural gas 

vehicle fuel increases, then we expect competition in the market for natural gas vehicle fuel would also increase. 

Government Regulation and Environmental Matters 

We are subject to a variety of federal, state and local laws and regulations relating to the environment, health and 
safety, labor and employment, building codes and construction, zoning and land use, the government procurement process, 

11 

any political activities or lobbying in which we may engage, public reporting and taxation, among others. Many of these 
laws and regulations are complex, change frequently and have become more stringent over time. Any changes to existing 
regulations, adoption of new regulations or failure by us to comply with applicable regulations may result in significant 
additional expense to us or our customers or a variety of administrative, civil and criminal enforcement measures, any of 
which  could  have  a  material  adverse  effect  on  our  business,  reputation,  financial  condition  and  results  of  operations. 
Regulations  that  significantly  affect  our  various  operating  activities  are  described  below.  Compliance  with  these 
regulations has not had a material effect on our capital expenditures, earnings or competitive position to date, but new 
regulations or amendments to existing regulations to make them more stringent could have such an effect in the future. 
We cannot estimate the expenses we may incur to comply with potential new laws or changes to existing laws, or the other 
potential  effects  these  laws  may  have  on  our  business,  and  these  unknown  costs  and  effects  are  not  specifically 
contemplated by our existing customer agreements or our budgets and cost estimates. 

Construction and Operation of CNG and LNG Stations. To construct a CNG or LNG fueling station, we must satisfy 
permitting  and  other  requirements  and  either  we  or  a  third-party  contractor  must  be  licensed  as  a  general  engineering 
contractor. Each CNG and LNG fueling station must be constructed in accordance with federal, state and local regulations 
pertaining  to  station  design,  environmental  health,  accidental  release  prevention,  above-ground  storage  tanks  and 
hazardous waste and other materials. For fueling stations we operate, we are also required to register with certain state 
agencies as a retailer/wholesaler of CNG and LNG. We also may benefit from any grant programs or similar government 
incentives that may be available for the construction of natural gas fueling stations. 

Transfer of LNG. Federal safety standards require each transfer of LNG to be conducted in accordance with specific 
written safety procedures. These procedures must require that qualified personnel be in attendance during all LNG transfer 
operations, and these procedures must be implemented, and copies of the procedures must be available or displayed, at 
each LNG transfer location. 

Construction and Operation of LNG Liquefaction Plants. To build and operate LNG liquefaction plants, we must 
apply for facility permits or licenses that address many aspects of plant operations, including storm water and wastewater 
discharges, waste handling and air emissions related to production activities and equipment operation. The construction of 
LNG plants must also be approved by local planning boards and fire departments. 

Vehicle  Finance.  State  agencies  generally  require  the  registration  of  finance  lenders.  For  example,  in  California, 
pursuant to the California Finance Lenders Law, one of our subsidiaries is required to be registered as a finance lender 
with the California Department of Corporations. 

Generation and Sale of RIN Credits and LCFS Credits. In February 2010, the EPA finalized the RFS (which was 
established by the Energy Policy Act of 1992/2005), which creates RINs that can be generated by the production and use 
of RNG in the transportation sector and sold to fuel providers that are not compliant under the RFS. In addition, CARB 
and  comparable  agencies  in  Oregon  have  adopted  the  Low  Carbon  Fuel  Standard,  which  encourages  low  carbon 
“compliant” transportation fuels (including CNG, LNG and RNG) in the California and Oregon marketplace by allowing 
producers of these fuels to generate LCFS Credits that can be sold to noncompliant regulated parties. 

Sale of Natural Gas Vehicle Fuel: AFTC. Under separate pieces of U.S. federal legislation, we have been eligible to 
receive the AFTC, an alternative fuels tax credit, for our natural gas vehicle fuel sales made between October 1, 2006 and 
December 31, 2019, and are eligible to receive AFTC for our natural gas vehicle fuel sales made during the year ending 
December 31, 2020. The AFTC credit is equal to $0.50 per gasoline gallon equivalent of CNG that we sold as vehicle fuel, 
and $0.50 per diesel gallon equivalent of LNG that we sold as vehicle fuel in 2017, 2018 and 2019, and sell in 2020. Based 
on the service relationship with our customers, either we or our customers claim the credit. On February 9, 2018, AFTC 
was retroactively extended from January 1, 2017 to December 31, 2017, and AFTC revenue for the 2017 calendar year 
was recognized and collected in 2018. On December 20, 2019, AFTC was retroactively extended beginning January 1, 
2018 through December 31, 2020. AFTC revenue for 2018 and 2019 was recognized in 2019. AFTC may not be reinstated 
for vehicle fuel sales after December 31, 2020. 

Sale of Natural Gas Vehicle Fuel, Operation of Fueling Stations and Production of LNG: Greenhouse Gas Emissions 
Regulation. California has enacted laws and regulations that require specified greenhouse gas emissions reductions, and 

12 

the federal government and several other state governments are considering similar measures. These regulations, if and 
when  adopted  and  implemented,  could  affect  several  areas  of  our  operations,  including  our  sales  of  conventional  and 
renewable natural gas and the operation of our CNG and LNG fueling stations and our LNG production plants. 

California’s emissions laws require statewide reductions of greenhouse gas emissions to 1990 levels by 2020, 40% 
below 1990 levels by 2030, and 80% below 1990 levels by 2050. As of January 1, 2015, California’s AB 32 law began 
regulating the greenhouse gas emissions from transportation fuels, including the emissions associated with the CNG and 
LNG vehicle fuel we sell in the state. 

Under AB 32, the regulated party with respect to CNG vehicle fuel use is the utility that owns the pipe through which 
the fossil fuel natural gas is sold. We anticipate that, over time, as the utilities’ costs increase to comply with this law, we 
or, to the extent we pass these costs through to our customers, our CNG customers will be required to pay more for CNG 
vehicle fuel to cover the increased AB 32 compliance costs of the utility. The amount of these costs that we or our CNG 
customers will be required to pay will be determined by the amount a utility spends to buy any carbon credits needed to 
comply with AB 32 and the amount of natural gas we or our customers buy through the utility’s pipeline. With respect to 
LNG  vehicle  fuel  use,  the  LNG  vehicle  fuel  provider  is  the  regulated  party  under  AB 32.  As  a  result,  we  will  incur 
increased costs to comply with AB 32, and the amount of the increase will be based on how much LNG vehicle fuel we 
sell  that  is  regulated,  CARB’s  requirements  relating  to  the  regulation  of  LNG  vehicle  fuel,  any  applicable  regulatory 
changes and the cost of any carbon credits we purchase to comply with AB 32. We expect to try to pass the costs we incur 
to comply with this law through to our LNG customers. To the extent we are not able to pass the increased costs of CNG 
and LNG vehicle fuel as a result of AB 32 through to our customers, we could experience increased direct expenses and 
reduced margins. 

Sales and Marketing 

We  market  our  brands,  products  and  services  primarily  through  our  direct  sales  force,  which  includes  sales 
representatives  covering  all  of  our  major  geographic  and  customer  markets,  as  well  as  attendance  at  trade  shows  and 
participation in industry conferences and events. Our sales and marketing team also works closely with federal, state and 
local government agencies to provide education about the value of natural gas as a vehicle fuel and to keep abreast of 
proposed and newly adopted regulations that affect our industry. 

Employees 

As of December 31, 2019, we employed 412 people. We have not experienced any work stoppages and none of our 

employees is subject to collective bargaining agreements. We believe our employee relations are good. 

Seasonality 

To some extent, our business may experience seasonality. For more information, see the discussion under “Seasonality 

and Inflation” in Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations. 

Intellectual Property 

Our  intellectual  property  rights  primarily  consist  of  trade  secrets,  know-how  and  trademarks,  and  we  rely  on  a 
combination of trademark laws, trade secret laws, confidentiality provisions and other contractual provisions to protect 
these rights and our proprietary information. These intellectual property rights help us to retain existing business and secure 
new relationships with customers. 

Corporate Information 

We  were  incorporated  under  the  laws  of  the  State  of  Delaware  in  2001.  We  have  completed,  and  we  anticipate 
continuing to pursue, acquisitions, investments, divestitures, joint ventures and other partnerships as we become aware of 
opportunities that we believe can increase our competitive advantages, expand our product offerings, take advantage of 

13 

industry developments and trends, enhance our market position or provide other benefits, including streamlining operations 
and reducing our costs. Recent significant transactions of this nature include the BP Transaction and the CEC Combination. 

More Information 

Our website is located at www.cleanenergyfuels.com. We make available, free of charge on our website, our annual 
reports 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  Exchange  Act  as  soon  as  reasonably  practicable  after  we 
electronically file such material with, or furnish it to, the SEC. The SEC maintains a website at www.sec.gov that contains 
reports, proxy and information statements and other information regarding issuers that file electronically with the SEC, 
including us. 

All  references to our  website  in  this  report are  inactive  textual  references  and  the  contents of our website  are not 

incorporated into this report. 

Item 1A. Risk Factors 

An investment in our Company involves a high degree of risk of loss. You should carefully consider the risk factors 
discussed below and all of the other information included in this report before you make any investment decision regarding 
our securities. We believe the risks and uncertainties described below are the most significant we face, but additional risks 
and  uncertainties  not  known  to  us  or  that  we  currently  deem  immaterial  could  also  be  or  become  significant.  The 
occurrence  of  any  of  these  risks  could  harm  our  business,  financial  condition,  results  of  operations,  prospects  and 
reputation and could cause the trading price of our common stock to decline. 

Risks Related to Our Business 

Our success is dependent on the willingness of fleets and other consumers to adopt natural gas as a vehicle fuel, which 
may not occur in a timely manner, at expected levels or at all. 

Our success is highly dependent on the adoption by fleets and other consumers of natural gas as a vehicle fuel. The 
market  for natural gas  as  a  vehicle  fuel has  experienced  slow,  volatile  and  unpredictable  growth  in many  sectors. For 
example, adoption and deployment of natural gas vehicles, both in general and in certain of our key customer markets, 
including heavy-duty trucking, have been slower and more limited than we anticipated. Also, other important fleet markets, 
including airports, refuse and public transit, had slower volume and customer growth in 2018 and 2019 that may continue. 
Moreover, adoption of and demand for the different types of natural gas vehicle fuel, including CNG, LNG and RNG 
(which can be delivered in the form of CNG or LNG), are subject to significant risks, including decreased LNG volumes 
in some markets in recent periods that may continue and may not be sufficiently offset by any increase in demand for RNG 
or CNG. If the market for natural gas as a vehicle fuel does not develop at improved rates or levels, or if a market develops 
but we are not able to capture a significant share of the market or the market subsequently declines, our business, prospects, 
financial condition and operating results would be harmed. 

Factors that may influence the adoption of natural gas as a vehicle fuel, many of which are beyond our control, include, 

among others: 

•  Adoption of government policies or programs or increased publicity or popular sentiment in favor of vehicles or 
vehicle fuels other than natural gas, including long-standing support for gasoline and diesel-powered vehicles and 
growing support for electric and hydrogen-powered vehicles; 

•  Perceptions about the benefits of renewable and conventional natural gas relative to gasoline and diesel and other 
alternative vehicle fuels, including with respect to factors such as supply, cost savings, environmental benefits 
and safety; 

• 

Increases, decreases or volatility in the supply, demand, use and prices of crude oil, gasoline, diesel, natural gas 
and other vehicle fuels, such as electricity, hydrogen, renewable diesel, biodiesel and ethanol; 

14 

• 

Inertia among fleets and fleet vehicle operators, who may be unable or unwilling to prioritize converting a vehicle 
fleet to natural gas over an operator’s other general business concerns, particularly if the operator lacks sufficient 
incentive to convert from emissions regulations or other requirements or lacks demand for the conversion from 
its customers or drivers; 

•  Natural  gas  vehicle  cost,  fuel  usage,  availability,  quality,  safety,  convenience  (to  fuel  and  service),  design, 
performance and residual value, as well as operator perception with respect to these factors, generally and in our 
key customer markets and relative to comparable vehicles powered by other fuels; 

•  The development, production, cost, availability, performance, sales and marketing and reputation of natural gas 
engines that are well-suited for the vehicles used in our key customer markets, including heavy-duty trucks and 
other fleets; 

• 

Increasing  competition  in  the  market  for  vehicle  fuels  generally,  and  the  nature  and  effect  of  competitive 
developments in this market, including improvements in or perceived advantages of non-natural gas vehicle fuels 
or engines powered by these fuels; 

•  The availability and effect of environmental, tax or other government regulations, programs or incentives that 
promote natural gas or other alternatives as a vehicle fuel, including certain programs under which we generate 
credits by selling conventional and renewable natural gas as a vehicle fuel, as well as the market prices for such 
credits; 

•  The effect of, or potential for changes to, emissions requirements applicable to vehicles powered by gasoline, 

diesel, natural gas or other vehicle fuels;  

•  Emissions and other environmental regulations and pressures on crude oil and natural gas fueling stations and 

drilling, production, importing and transportation methods for these fuels; and 

•  The other risks discussed in these risk factors. 

We are dependent on the production of natural gas vehicles and engines in our key customer and geographic markets 
by vehicle and engine manufacturers, over which we have no control. 

Natural gas vehicle and engine manufacturers control the development, production, quality assurance, cost and sales 
and  marketing  of  their  products,  which  shapes  the  performance,  availability  and  reputation  of  these  products  in  the 
marketplace. Although we are dependent on these manufacturers to succeed in our target markets, we have no influence 
over their activities. For example, Cummins Westport is the only natural gas engine manufacturer for the heavy-duty truck 
market  in  the  United  States,  and  this  and  other  original  equipment  manufacturers  currently  produce  a  relatively  small 
number of natural gas engines and vehicles for the U.S. and Canadian markets. These manufacturers may not decide to 
expand or maintain, or may decide to discontinue or curtail, their natural gas engine or vehicle product lines. The limited 
production  of  natural  gas  engines  and  vehicles  increases  their  cost  and  limits  availability,  which  restricts  large-scale 
adoption, and may reduce resale value, which may contribute to operator reluctance to convert their vehicles to natural 
gas. In addition, some operators have communicated to us that the first generation models of natural gas engines for heavy-
duty trucks have a reputation for unsatisfactory performance, and that this reputation or their first-hand experiences of 
such performance may be a factor in operator decisions regarding whether or not to convert their fleets to natural gas. The 
success of our business strategies and initiatives depends on sufficient availability and adoption of high-performing natural 
gas vehicles, and as a result, any production failures by the third-party manufacturers of these vehicles or their engines 
could harm our results of operations, business and prospects. 

If there are improvements in or perceived advantages of non-natural gas vehicle fuels or engines powered by these 
fuels, demand for natural gas vehicles may decline. 

15 

Use of electric heavy-duty trucks, buses and refuse trucks, which are key customer markets for our business, or the 
perception that electric vehicles providing satisfactory performance at an acceptable cost may soon be widely available 
for  these  or  other  applications,  could  reduce  demand  for  natural  gas  vehicles  generally  and  in  these  key  markets.  In 
addition, hydrogen, renewable diesel and other alternative fuels in development may prove to be, or may be perceived to 
be, cleaner, more cost-effective, more readily available or otherwise more beneficial alternatives to gasoline and diesel 
than conventional or renewable natural gas. Further, technological advances in the production, delivery and use of gasoline, 
diesel or other alternative vehicle fuels, or the failure of natural gas vehicle fuel technology to advance at an equal pace, 
could slow or limit adoption of natural gas vehicles. For example, advances in gasoline and diesel engine technology, 
including efficiency improvements and further development of hybrid engines, may offer a more cost-effective way for 
operators to use a cleaner vehicle fuel, which could reduce the likelihood that fleet customers purchase natural gas vehicles 
or  convert  their  existing  vehicles  to  natural  gas.  If  any  of  these  risks  occur,  our  industry,  prospects  and  results  could 
materially suffer. 

We have a history of losses and may incur additional losses in the future. 

We incurred pre-tax losses in 2017 and 2018. During 2018 and 2019, our results were positively affected by $26.7 
million and $47.1 million of AFTC revenue, respectively.  We may incur losses in future periods and we may never sustain 
profitability, either of which would adversely affect our business, prospects and financial condition and may cause the 
price of our common stock to fall. In addition, to try to achieve or sustain profitability, we may choose or be forced to take 
actions that result in material costs or material asset or goodwill impairments. For instance, in the third and fourth quarters 
of 2017, we recorded significant charges in connection with our former natural gas fueling compressor manufacturing 
business  (which  we  subsequently  combined  with  another  company’s  natural  gas  fueling  compressor  manufacturing 
business  in  the  CEC  Combination),  our  closure  of  certain  fueling  stations,  our  determination  that  certain  assets  were 
impaired as a result of the foregoing, and other actions. We review our assets for impairment whenever events or changes 
in  circumstances  indicate  that  the  carrying value  of  an  asset  or asset group  may  not be  recoverable and we perform  a 
goodwill impairment test on an annual basis and between annual tests in certain circumstances, in each case in accordance 
with applicable accounting guidance and as described in the financial statements and related notes included in this report. 
Changes to the use of our assets, divestitures, changes to the structure of our business, significant negative industry or 
economic trends, disruptions to our operations, inability to effectively integrate any acquired businesses, further market 
capitalization  declines,  or  other  similar  actions  or  conditions  could  result  in  additional  asset  impairment  or  goodwill 
impairment charges or other adverse consequences, any of which could have material negative effects on our financial 
condition, our results of operations and the trading price of our common stock. 

Our  business  is  influenced  by  environmental,  tax  and  other  government  regulations,  programs  and  incentives  that 
promote natural gas or other alternatives as a vehicle fuel, and their adoption, modification or repeal could negatively 
affect our business. 

Our business is influenced by federal, state and local tax credits, rebates, grants and other government programs and 
incentives that promote the use of RNG, CNG and LNG as a vehicle fuel. These include various government programs 
that make grant funds available for the purchase of natural gas vehicles and construction of natural gas fueling stations, as 
well as the AFTC tax credit under which we generate revenue for our natural gas vehicle fuel sales made through the end 
of 2020 but which may not be available for vehicle fuel sales made after December 31, 2020, particularly if other legislative 
priorities result in insufficient focus on this program during upcoming congressional sessions. Additionally, our business 
is influenced by laws, rules and regulations that require reductions in carbon emissions and/or the use of renewable fuels, 
such as the programs under which we generate RINs and LCFS Credits by selling RNG, CNG and LNG as a vehicle fuel. 

These programs and regulations, which have the effect of encouraging the use of RNG, CNG or LNG as a vehicle 
fuel, could expire or be repealed or amended for a variety of reasons. For example, parties with an interest in gasoline and 
diesel, electric or other alternative vehicles or vehicle fuels, including lawmakers, regulators, policymakers, environmental 
or advocacy organizations or other powerful groups, may invest significant time and money in efforts to delay, repeal or 
otherwise negatively influence regulations and programs that promote natural gas. Many of these parties have substantially 
greater  resources  and  influence  than  we  have.  Further,  changes  in  federal,  state  or  local  political,  social  or  economic 
conditions,  including  a  lack  of  legislative  focus  on  these  programs  and  regulations,  could  result  in  their  modification, 
delayed  adoption  or  repeal.  Any  failure  to  adopt,  delay  in  implementing,  expiration,  repeal  or  modification  of  these 

16 

programs and regulations, or the adoption of any programs or regulations that encourage the use of other alternative fuels 
or alternative vehicles over natural gas, would reduce the market for natural gas as a vehicle fuel and harm our operating 
results, liquidity and financial condition. For instance, California lawmakers and regulators have implemented various 
measures designed to increase the use of electric, hydrogen and other zero-emission vehicles, including establishing firm 
goals for the number of these vehicles operating on state roads by specified dates and enacting various laws and other 
programs in support of these goals. Although the influence of these or similar measures on our business and natural gas 
vehicle adoption in general remains uncertain, a focus by these groups on zero-emission vehicles over vehicles operating 
on natural gas adversely affects the market for natural gas vehicles and our business prospects. 

Our RNG business may not be successful. 

Our RNG business consists of purchasing RNG from third-party producers, including BP, and reselling this RNG 

through our natural gas fueling infrastructure as Redeem, our RNG vehicle fuel. 

The success of our RNG business depends on our ability to secure, on acceptable terms, a sufficient supply of RNG 
from BP and other third parties; to sell this RNG in adequate volumes and at prices that are attractive to customers and 
produce acceptable margins for us; and to sell, at favorable prices, credits we may generate under applicable federal or 
state programs from our sale of RNG as a vehicle fuel, including RINs and LCFS Credits. If we are not successful at one 
or more of these activities, our RNG business could fail and our performance and financial condition could be materially 
harmed. 

Our ability to maintain an adequate supply of RNG is subject to risks affecting RNG production. Projects that produce 
pipeline-quality RNG often experience unpredictable production levels or other difficulties due to a variety of factors, 
including,  among  others,  problems  with  equipment,  severe  weather,  construction  delays,  technical  difficulties,  high 
operating costs, limited availability or unfavorable composition of collected feedstock gas, and plant shutdowns caused by 
upgrades,  expansion  or  required  maintenance.  In  addition,  increasing  demand  for  RNG  will  result  in  more  robust 
competition  for  supplies  of  RNG,  including  from  other  vehicle  fuel  providers,  gas  utilities  (which  may  have  distinct 
advantages in accessing RNG supply including potential use of ratepayer funds to fund RNG purchases if approved by a 
utility’s regulatory commission) and other users and providers. If any of our RNG suppliers experience these or other 
difficulties in their RNG production processes, or if competition for RNG supply materially increases, then our supply of 
RNG and our ability to resell it as a vehicle fuel could be jeopardized. 

Our ability to generate revenue from our sale of RNG or our generation and sale of RINs and LCFS Credits depends 
on a number of factors, including the markets for RNG as a vehicle fuel and for these credits. The market for RNG as a 
vehicle  fuel  is  subject  to  the  same  fluctuations  and  unpredictability  that  affect  the  market  for  natural  gas  vehicle  fuel 
generally, which is discussed elsewhere in these risk factors. The markets for RINs and LCFS Credits have been volatile 
and unpredictable in recent periods, and the prices for these credits have been  subject to fluctuations, including lower 
market prices for RINs since June 2019 that may continue. For example, in 2019 market prices for RINs were as high as 
approximately  $1.90  and  as  low  as  approximately  $0.50.  Additionally,  the  value  of  RINs  and  LCFS  Credits,  and 
consequently the revenue levels we may receive from our sale of these credits, may be adversely affected by changes to 
the federal and state programs under which these credits are generated and sold or other market conditions. Further, our 
ability  to  generate  revenue  from  sales  of  these  credits  depends  on  our  strict  compliance  with  these  federal  and  state 
programs, which are complex and can involve a significant degree of judgment. If the agencies that administer and enforce 
these  programs  disagree  with  our  judgments,  otherwise  determine  we  are  not  in  compliance,  conduct  reviews  of  our 
activities or make changes to the programs, then our ability to generate or sell these credits could be temporarily restricted 
pending completion of reviews or as a penalty, permanently limited or lost entirely, and we could also be subject to fines 
or other sanctions. Any of these outcomes could force us to purchase credits in the open market to cover any credits we 
have contracted to sell, retire credits we may have generated but not yet sold, reduce or eliminate a significant revenue 
stream or incur substantial additional and unplanned expenses. We experienced many of these effects in connection with 
the administrative review by the CARB of our generation of LCFS Credits in the third and fourth quarters of 2017, during 
which  we  were  restricted  from  selling  and  transferring  accumulated  LCFS  Credits,  we  were  required  to  make  cash 
payments to third parties to settle preexisting commitments to transfer LCFS Credits, and certain of our LCFS Credits 
were  invalidated.  See  the  discussion  under  “Key  Trends—Our  Performance”  in  the  MD&A  in  this  report  for  more 
information about this administrative review and its effects. Moreover, in the absence of programs that allow us to generate 

17 

and sell RINs and LCFS Credits or other federal and state programs that support the RNG vehicle fuel market, or if our 
customers are not willing to pay a premium for RNG, we may be unable to operate our RNG business profitably or at all. 
Any such failure of our RNG business could have a significant negative effect on our performance, cash position and 
prospects. 

Increases, decreases and  general  volatility  in  oil,  gasoline,  diesel  and  natural  gas  prices  could adversely  affect  our 
business. 

Gasoline and diesel are today's most prevalent vehicle fuels. Prices for crude oil, which is the commodity used to 
make gasoline and diesel, have been low in recent years, due in part to over-production and increased supply without a 
corresponding increase in demand. If the prices of crude oil, gasoline and diesel continue to be low or decline further, or 
if the price of natural gas increases without corresponding increases in the prices of crude oil, gasoline and diesel, then 
market adoption of natural gas as a vehicle fuel could be slowed or limited. Further, any of these circumstances could 
decrease the market's perception of a need for alternative vehicle fuels generally, which could cause the prospects for and 
success of our industry and our business to materially suffer. In addition, under these pricing conditions, we may not be 
able to offer our customers an attractive price advantage for RNG, CNG and LNG and maintain an acceptable margin on 
our sales. Any such failure could result in an inability to attract new customers or a loss of demand from existing customers, 
or could directly and negatively affect our results of operations if we are forced to reduce the prices at which we sell natural 
gas to try to avoid such an effect. Conversely, if prices of gasoline and diesel increase or the price of natural gas decreases, 
we may not be able to capture a material portion of any increase in the demand for natural gas vehicle fuel that could result 
from favorable pricing conditions, due to increased competition from new entrants in the natural gas vehicle fuels market, 
expanded programs by existing competitors, or other factors. 

Pricing  conditions  may  also  exacerbate  the  cost  differential  between  natural  gas  vehicles  and  gasoline  or  diesel-
powered vehicles, which may lead operators to delay or refrain from purchasing or converting to natural gas vehicles. 
Generally, natural gas vehicles cost more initially than gasoline or diesel-powered vehicles because the components needed 
for a vehicle to use natural gas add to the vehicle’s base cost. Operators then seek to recover the additional base cost over 
time through the lower cost to fuel a natural gas vehicle. Operators may, however, perceive an inability to timely recover 
these additional initial costs if RNG, CNG and LNG fuel are not available at prices sufficiently lower than gasoline and 
diesel. Such an outcome could decrease our potential customer base and harm our business prospects. 

Additionally,  the  prices  of  natural  gas,  crude  oil,  gasoline  and  diesel  have  been  volatile  in  recent  years,  and  this 
volatility may continue. Factors that may cause this volatility to continue include, among others, changes in supply and 
availability of crude oil and natural gas, government regulations, inventory levels, consumer demand, price and availability 
of  alternatives,  weather  conditions,  negative  publicity  about  crude  oil  or  natural  gas  drilling,  production  or  importing 
techniques and methods, economic, health and political conditions, transportation costs and the price of foreign imports. 
Fluctuations in natural gas prices affect the cost to us of the natural gas commodity. High natural gas prices adversely 
affect our operating margins when we cannot pass the increased costs through to our customers. Conversely, lower natural 
gas  prices  reduce  our  revenue  when  the  commodity  cost  is  passed  through  to  our  customers.  As  a  result,  continued 
fluctuations in natural gas prices could have a significant effect on our operating results. 

We face increasing competition from a variety of businesses, many of which have far greater resources, experience, 
customer bases and brand awareness than we have, and we may not be able to compete effectively with these businesses. 

The market for vehicle fuels is highly competitive. The biggest competition for RNG, CNG and LNG use as a vehicle 
fuel is gasoline and diesel because the vast majority of vehicles in our key markets are powered by these fuels. We also 
compete with suppliers of other alternative vehicle fuels, including renewable diesel, biodiesel and ethanol, as well as 
producers and fuelers of alternative vehicles, including hybrid, electric and hydrogen-powered vehicles. Additionally, our 
stations compete directly with other natural gas fueling stations and indirectly with electric vehicle charging stations and 
fueling stations for other vehicle fuels. We also face high levels of competition with respect to our other business activities, 
including our procurement and sale of RNG and our transport and sale of CNG through the virtual natural gas pipelines 
and interconnects of our subsidiary, NG Advantage. 

18 

A  number  of businesses  are  in  the  market  for  natural gas and  other  alternatives  for use  as  vehicle  fuel,  including 
alternative vehicle and alternative fuel companies, refuse collectors, industrial gas companies, truck stop and fuel station 
owners, fuel providers, gas marketers, utilities and their affiliates and other organizations. If the alternative vehicle fuel 
market grows, then the number and type of participants in this market and their level of capital and other commitments to 
alternative vehicle fuel programs could increase. Many of our competitors have substantially greater experience, customer 
bases, brand awareness and financial, marketing and other resources than we have. As a result, these competitors may be 
able to respond more quickly to changes in customer preferences, legal requirements or other industry or regulatory trends; 
devote greater resources to the development, promotion and sale of their products; adopt more aggressive pricing policies; 
dedicate  more  effort  to  infrastructure  and  systems  development  in  support  of  their  business  or  product  development 
activities; implement more robust or creative initiatives to advance consumer acceptance of their products; or exert more 
influence on the regulatory landscape that affects the vehicle fuels market. 

We expect competition to increase in the vehicle fuels market generally. In addition, if the demand for natural gas 
vehicle fuel increases, then we expect competition in the market for natural gas vehicle fuel would also increase. Any such 
increased competition may reduce our customer base and revenue and may lead to increased pricing pressure, reduced 
operating margins and fewer expansion opportunities. 

Our Zero Now heavy-duty truck financing initiative subjects us to material risks, and if this program is not successful, 
our financial results and business could be materially adversely affected. 

One of our key strategic objectives is to fuel more natural gas heavy-duty trucks. As part of our efforts to achieve this 
goal, we have launched the Zero Now truck financing program, which is intended to facilitate and increase the deployment 
of natural gas heavy-duty trucks in the United States and encourage these operators to fuel their trucks at our stations. The 
Zero  Now  program  is  unique  and  complex  and  subjects  us  to  a  variety  of  risks.  See  the  discussion  under  “Customer 
Markets-Trucking” in Part I, Item 1. Business of this report and Note 13 for information about the structure of the program 
and certain agreements we have established in connection with its launch. 

The Zero Now program may not be successful for a variety of reasons, including continued slow or limited adoption 
of natural gas trucks by  fleet  operators or  the occurrence of  any of  the other  risks described  in  these  risk factors.  For 
example,  some  operators  have  communicated  to  us  that  their  reluctance  to  convert  to  natural  gas  trucks  stems  from 
insufficient incentive to convert due to emissions regulations or other requirements, lack of demand for the conversion 
from customers and drivers, experiences or reputation of unsatisfactory performance by the first generation models of 
heavy-duty truck engines, actual or perceived insufficiencies in the financial incentives to convert, concern regarding the 
residual value of heavy-duty trucks and prioritization of other competing business concerns. If a sufficient number of truck 
operators  do  not  participate  in  the  Zero  Now  program,  then  it  will  not  achieve  its  intended  benefits  and  we  will  have 
expended substantial resources on an initiative that does not produce results. 

In addition, the structure and terms of the program subject us to certain additional risks. For example, the term credit 
agreement we have established to implement the program permits us to incur substantial additional debt, and the related 
credit support agreement obligates us to make quarterly payments in amounts that will vary depending on the outstanding 
principal under the term credit agreement. These commitments are subject to, and will amplify, the risks associated with 
our outstanding indebtedness, which are discussed elsewhere in these risk factors. In addition, the amounts owed under 
the term credit agreement and the credit support agreement use LIBOR as a benchmark for establishing the rate at which 
interest accrues. In July 2017, the U.K.’s Financial Conduct Authority, which regulates LIBOR, announced that it intends 
to  phase  out  LIBOR  by  the  end  of  2021.  We  intend  to  monitor  the  developments  with  respect  to  the  potential 
discontinuance of LIBOR after 2021 and work with SG, our lender under the term credit agreement, in order to minimize 
the effect of such a discontinuance on our financial condition and results of operations; however, the actual effect of the 
anticipated discontinuance of LIBOR on us and the cost of this indebtedness remains uncertain. If SG has increased costs 
due to changes in LIBOR, we may experience potential increases in interest rates under the term credit agreement, which 
could  adversely  impact  our  interest  expense,  results  of  operations  and  cash  flows.  Further,  the  commodity  swap 
arrangements we established with an affiliate of TOTAL and THUSA in connection with launching the program introduce 
additional risks related to volatility in crude oil prices. These arrangements are designed to protect us from fluctuations in 
the price of crude oil; however, we may be subject to payment obligations if truck operators participating in the program 
do not use all of the fuel volume covered by the arrangements and we are not able to fully and timely sell the excess fuel 

19 

volume to our other customers. Any obligation to make payments under our commodity swap arrangements would increase 
our  operating  expenses  and  decrease  our  available  cash  flow,  and  any  efforts  to  sell  additional  gallons  to  our  other 
customers to avoid such payment obligations could result in lower margins and revenues. 

Moreover, even if the Zero Now program achieves its intended goal of facilitating growth in the U.S. heavy-duty truck 
market, such growth may not positively affect our results for a variety of reasons. For example, if trucks purchased or 
financed in the program do not meet the minimum fuel purchase obligations under the supply agreements with us for any 
reason,  including  an  operator  experiencing  lower-than-anticipated  fuel  demand  or  failing  to  comply  with  payment 
obligations under the supply agreement, then the program would not result in the intended growth in our fuel sales volume 
and  consequent  increase  in  our  revenues.  Although  we  have  built  America’s  Natural  Gas  Highway,  or  ANGH,  our 
nationwide network of natural gas truck-friendly fueling stations, some operators may choose to fuel their natural gas 
vehicles elsewhere due to lack of convenient access, fuel prices or other factors. In that event, we would remain obligated 
to make payments under the debt agreements we have established in connection with the Zero Now program, which are 
based on the cost of the trucks purchased or financed in the program and not the amount of fuel volume we actually sell. 
As a result, we could become subject to significant payments under these debt agreements without a corresponding increase 
in revenues, in which case our performance and liquidity would be materially adversely affected. 

We must effectively manage these risks to obtain the anticipated benefits from our Zero Now truck financing program 
and achieve our objective of fueling additional natural gas heavy-duty trucks. If we are not successful in meeting these 
objectives, our business, financial condition and operating results would be materially and adversely affected. 

We may need to raise additional capital to continue to fund our business or repay our debt, which could have negative 
effects and may not be available when needed, on acceptable terms or at all. 

We require capital to make principal and interest payments on our indebtedness, and to pay for capital expenditures 
(including NG Advantage's capital expenditures), our other operating expenses, and any mergers, acquisitions or strategic 
investments, transactions or relationships we may pursue. If we cannot fund any of these activities with capital on-hand or 
cash provided by our operations, we may seek to obtain additional capital from other sources, such as by selling assets or 
pursuing debt or equity financing. 

Asset sales and equity or debt financing may not be available when needed, on terms favorable to us or at all. Any 
sale of our assets to generate cash proceeds may limit our operational capacity and could limit or eliminate any revenue 
streams  or  business  plans  that  are  dependent  on  the  sold  assets.  Any  issuances  of  our  common  stock  or  securities 
convertible into our common stock to raise capital would dilute the ownership interest of our existing stockholders. Any 
debt financing we may pursue could require us to make significant interest or other payments and to pledge some or all of 
our assets as security. In addition, higher levels of indebtedness could increase our risk of non-repayment, adversely affect 
our creditworthiness and amplify the other risks associated with our existing debt, which are discussed elsewhere in these 
risk  factors.  Further,  we  may  incur  substantial  costs  in  pursuing  any  capital-raising  transactions,  including  investment 
banking, legal and accounting fees. On the other hand, if we are unable to obtain capital in amounts sufficient to fund our 
obligations,  expenses  and  strategic  initiatives,  we  could  be  forced  to  suspend,  delay  or  curtail  our  business  plans  or 
operating  activities  or  could  default  on  our  contractual  commitments.  Any  such  outcome  could  negatively  affect  our 
business, performance, liquidity and prospects. 

Compliance with greenhouse gas emissions regulations may prove costly and negatively affect our performance and 
financial condition. 

California has enacted laws and regulations that require specified greenhouse gas emissions reductions, and the federal 
government and several other state governments are considering similar measures. These regulations could affect several 
areas of our operations, including our sales of conventional and renewable natural gas and the operation of our CNG and 
LNG fueling stations and our LNG production plants. For instance, California’s AB 32 law, which regulates greenhouse 
gas  emissions  from  transportation  fuels,  including  emissions  associated  with  the  CNG  and  LNG  vehicle  fuel  we  sell, 
imposes increased compliance costs on utilities, suppliers and/or users of CNG and LNG fuel. See the discussion under 
“Government Regulation and Environmental Matters - Sale of Natural Gas Vehicle Fuel, Operation of Fueling Stations 

20 

and Production of LNG: Greenhouse Gas Emissions Regulation” in Part I, Item 1. Business of this report for information 
about the implementation of AB 32. 

The increased costs of CNG and LNG vehicle fuel as a result of AB 32 could diminish the attractiveness of these fuels 
for existing and prospective customers in California, which could reduce our customer base and fuel sales in one of our 
key geographic markets. Additionally, to the extent we are not able to pass these increased costs through to our customers, 
we could experience increased expenses and reduced margins. Any of these outcomes could cause our performance to 
suffer,  impair  our  ability  to  fulfill  customer  contracts  and reduce our  cash  available for  other  aspects of our business. 
Moreover, if similar laws or regulations are adopted and implemented by other states or by the federal government, or if 
existing laws are amended to make them more stringent, any compliance costs associated with the new or amended laws 
could amplify these effects. Further, any such new or more stringent laws or regulations could require us to undertake or 
incur  significant  additional  capital  expenditures  or  other  costs  to,  among  other  things,  buy  emissions  or  other 
environmental credits or invest in costly new emissions prevention technologies. We cannot estimate the expenses we may 
incur to comply with potential new laws or changes to existing laws, or the other potential effects these laws may have on 
our  business,  and  these  unknown  costs  and  effects  are  not  contemplated  by  our  existing  customer  agreements  or  our 
budgets and cost estimates. 

In  addition,  any  failure  by  us  to  comply  with  existing  or  any  future  emissions  laws  or  regulations  could  result  in 
monetary penalties or a variety of other administrative, civil and criminal enforcement measures, any of which could have 
a material adverse effect on our business, reputation, financial condition, liquidity and results of operations. 

NG Advantage may not be successful. 

NG Advantage’s business consists of transporting and selling CNG for non-vehicle purposes via virtual natural gas 
pipelines and interconnects. NG Advantage transports CNG to industrial and institutional energy users that do not have 
direct access to natural gas pipelines. NG Advantage also transports CNG between pipelines for customers that desire to 
take advantage of commodity price differences.  NG Advantage faces unique risks, including among others: 

• 

It has a history of net losses and has incurred substantial indebtedness; 

•  NG Advantage will need to raise additional capital, which may not be available, may only be available on onerous 
terms, or may only be available from the Company. Recently, we have been the sole source of financing for NG 
Advantage, consisting of loans of $26.7 million in the year ended December 31, 2019 and a $5.0 million equity 
purchase in the year ended December 31, 2018. If NG Advantage is not able to obtain financing from external 
sources,  we  may  need  to  provide  additional  debt  or  equity  capital  to  allow  NG  Advantage  to  satisfy  its 
commitments and maintain operations;   

• 

It has considerable obligations under its arrangements with BP and other customers, and if NG Advantage fails 
to perform under such arrangements it would be subject to significant liquidated damages and we could be subject 
to significant cash liabilities pursuant to the terms of our guaranty agreement with NG Advantage and BP (see 
the disclosure under “Off-Balance Sheet Arrangements” in the MD&A in this report for more information about 
this guaranty agreement);   

•  The labor market for truck drivers is very competitive, which increases NG Advantage's difficulty in meeting its 

delivery obligations; 

•  NG Advantage transports CNG in trailers over long distances and these trailers may be involved in accidents; 

•  NG Advantage has been targeted by environmental groups that may disrupt its activities; and  

•  Many of the other risks discussed in these risk factors. 

21 

If NG Advantage fails to manage any of these risks, our business, financial condition, liquidity results of operations, 

prospects and reputation may be harmed. 

Our station construction activities subject us to a number of business and operational risks. 

As part of our business activities, we design and construct natural gas fueling stations that we either own and operate 
ourselves or sell to our customers. These activities require a significant amount of judgment in determining where to build 
and open fueling stations, including predictions about fuel demand that may not be accurate for any of the locations we 
target. As a result, we have built stations that we may not open for fueling operations and we may open stations that fail 
to generate the volume or profitability levels we anticipate, either or both of which could occur due to a lack of sufficient 
customer demand at the station locations or for other reasons. For any stations that are completed but unopened, we would 
have substantial investments in assets that do not produce revenue, and for any stations that are open and underperforming, 
we may decide to close the stations. We determined to close a number of underperforming stations in the third and fourth 
quarters of 2017 and recorded impairment charges in connection with these closures and other related actions, and any 
further station closures could result in substantial additional costs and non-cash asset impairments or other charges and 
could harm our reputation and reduce our potential customer base. 

We also face a number of operational challenges in connection with our station design and construction activities. For 
example, we may not be able to identify suitable locations for the stations we or our customers seek to build. Additionally, 
even if preferred sites can be located, we may encounter land use or zoning difficulties, challenges obtaining and retaining 
required permits and approvals or local resistance, any of which could prevent us or our customers from building new 
stations on these sites or limit or restrict the use of new or existing stations. Any such difficulties, resistance or limitations 
or any failure to comply with local permit, land use or zoning requirements could restrict our activities or expose us to 
fines, reputational damage or other liabilities, which would harm our business and results of operations. In addition, we 
act as the general contractor and construction manager for new station construction and facility modification projects, and 
we typically rely on licensed subcontractors to perform the construction work. We may be liable for any damage we or 
our subcontractors cause or for injuries suffered by our employees or our subcontractors’ employees during the course of 
work on our projects. Additionally, shortages of skilled subcontractor labor could significantly delay a project or otherwise 
increase our costs. Further, our expected profit from a project is based in part on assumptions about the cost of the project, 
and cost overruns, delays or other execution issues may, in the case of projects we complete and sell to customers, result 
in our failure to achieve our expected margins or cover our costs, and in the case of projects we build and own, result in 
our failure to achieve an acceptable rate of return. If any of these events occur, our business, operating results and liquidity 
could be negatively affected. 

We have significant contracts with government entities, which are subject to unique risks. 

We have, and expect to continue to seek, long-term RNG, CNG and LNG station construction, maintenance and fuel 
sale contracts with various government bodies, which accounted for 19%, 22% and 21% of our revenue in 2017, 2018, 
and 2019, respectively. In addition to normal business risks, including the other risks discussed in these risk factors, our 
contracts with government entities are often subject to unique risks, some of which are beyond our control. For example, 
long-term government contracts and related orders are subject to cancellation if adequate appropriations for subsequent 
performance periods are not made. Further, the termination of funding for a government program supporting any of our 
government  contracts  could  result  in  the  loss  of  anticipated  future  revenue  attributable  to  the  contract.  Moreover, 
government  entities  with  which  we  contract  are  often  able  to  modify,  curtail  or  terminate  contracts  with  us  at  their 
convenience and without prior notice, and would only be required to pay for work completed and commitments made at 
or prior to the time of termination. 

In addition, government contracts are frequently awarded only after competitive bidding processes, which are often 
protracted. In many cases, unsuccessful bidders for government contracts are provided the opportunity to formally protest 
the  contract  awards  through  various  agencies  or  other  administrative  and  judicial  channels.  The  protest  process  may 
substantially delay a successful bidder’s contract performance, result in cancellation of the contract award entirely and 
distract management. As a result, we may not be awarded contracts for which we bid, and substantial delays or cancellation 
of contracts may follow any successful bids as a result of any protests by other bidders. The occurrence of any of these 
risks would have a material adverse effect on our results of operations and financial condition. 

22 

Our operations entail inherent safety and environmental risks, which may result in substantial liability to us. 

Our operations entail inherent safety risks, including risks associated with equipment defects, malfunctions, failures 
and misuses. For example, operation of LNG pumps requires special training because of the extremely low temperatures 
of LNG. Also, LNG tanker trailers and CNG fuel tanks and trailers could rupture if involved in accidents or improper 
maintenance or installation. Further, improper refueling of natural gas vehicles or operation of natural gas vehicle fueling 
stations could result in sudden releases of pressure that could cause explosions. In addition, our stations may vent methane, 
a potent greenhouse gas. These safety and environmental risks could result in uncontrollable flows of natural gas, fires, 
explosions, death or serious injury, any of which may expose us to liability for personal injury, wrongful death, property 
damage, pollution and other environmental damage. We may incur substantial liability and costs if any such damages are 
not covered by insurance or are in excess of policy limits, or if environmental damage causes us to violate applicable 
greenhouse gas emissions or other environmental laws. Additionally, the occurrence of any of these events with respect to 
our fueling stations or our other operations could materially harm our business and reputation. Moreover, the occurrence 
of any of these events to any other organization in the natural gas vehicle fuel business could harm our industry generally 
by negatively affecting perceptions about, and adoption levels of, natural gas as a vehicle fuel. 

Our business is subject to a variety of government regulations, which may restrict our operations and result in costs 
and penalties. 

We are subject to a variety of federal, state and local laws and regulations relating to the environment, health and 
safety, labor and employment, building codes and construction, zoning and land use, the government procurement process, 
any political activities or lobbying in which we may engage, public reporting and taxation, among others. It is difficult and 
costly to manage the requirements of every authority having jurisdiction over our various activities and to comply with 
their varying standards. Many of these laws and regulations are complex, change frequently, involve significant judgment 
and have become more stringent over time. Any changes to existing regulations or adoption of new regulations may result 
in significant additional expense to us or our customers. For example, some communities and cities, like Berkeley, CA, 
have banned new natural gas hook-ups. Further, from time to time, as part of the regular evaluation of our operations, 
including newly acquired or developing operations, we may be subject to compliance audits by regulatory authorities, 
which  may  distract  management  from  our  revenue-generating  activities  and  involve  significant  costs  and  use  of  other 
resources.  Also,  we  often  need  to  obtain  facility  permits  or  licenses  to  address,  among  other  things,  storm  water  or 
wastewater  discharges,  waste  handling  and  air  emissions  in  connection  with  our  operations,  which  may  subject  us  to 
onerous or costly permitting conditions or delays if permits cannot be timely obtained. 

Our failure to comply with any applicable laws and regulations could result in a variety of administrative, civil and 
criminal  enforcement  measures,  including,  among  others,  assessment  of  monetary  penalties,  imposition  of  corrective 
requirements or prohibition from providing services to government entities. If any of these enforcement measures were 
imposed on us, our business, financial condition and performance could be negatively affected. 

We may from time to time pursue acquisitions, divestitures, investments or other strategic relationships or transactions, 
which could fail to meet expectations or otherwise harm our business. 

We may acquire or invest in other companies or businesses or pursue other strategic transactions or relationships, such 
as joint ventures, collaborations, divestitures or other similar arrangements. For example, in March 2017 we completed 
the BP Transaction, in December 2017 we completed the CEC Combination, and in October 2018 and January 2019 we 
established arrangements with THUSA and others to launch the Zero Now truck financing program. 

These strategic transactions and relationships and any others we may pursue in the future involve numerous risks, any 

of which could harm our business, performance and liquidity, including, among others: 

•  Difficulties integrating the operations, personnel, contracts, service providers and technologies of an acquired 

company or partner;  

•  Diversion of financial and management resources from existing operations or alternative acquisition, investment, 

strategic or other opportunities;  

23 

•  Failure to realize the anticipated synergies or other benefits of a transaction or relationship;  

•  Failure to identify all of the operating problems, liabilities, shortcomings or other challenges associated with a 
company or asset we may partner with, invest in or acquire, including issues related to regulatory compliance 
practices, revenue recognition or other accounting policies, intellectual property rights, employee, customer or 
vendor relationships, or differing business strategies, approaches, cultures or goals;  

•  Risks of entering new customer or geographic markets in which we may have limited or no experience, including, 
among others, challenges satisfying differing customer demands and preferences and complying with differing 
laws  and  regulations,  as  well  as  risks  related  to  political  and  economic  instability  in  some  regions,  trade 
restrictions or barriers and currency exchange or repatriation uncertainties;  

•  Potential loss of an acquired company’s or partner’s key employees, customers or vendors in the event of an 
acquisition or investment, or potential loss of our assets (and their associated revenue streams), employees or 
customers in the event of a divestiture or other strategic transaction;  

•  Risks associated with any joint venture or other collaboration relationship we may pursue, including as a result 
of our relinquishing of some degree of control over the assets, technologies or businesses that are the subject of 
the joint venture or collaboration, or as a result of our partners having business goals and interests that are not 
aligned with ours or being unable or unwilling to fulfill their obligations in the relationship; 

• 

Incurrence of substantial costs or debt or equity dilution to fund an acquisition, investment or other transaction 
or relationship, and any inability to generate sufficient revenue from the transaction or relationship to offset such 
costs; 

•  Possible write-offs or impairment charges relating to any businesses we partner with, invest in or acquire; and 

•  The occurrence of many of the risks described above if we fail to accurately predict trends in our key markets, 
which  could  lead  us  to  neglect  opportunities  that  ultimately  capitalize  on  these  trends  or,  conversely,  pursue 
transactions that do not best serve our markets or customers over the long term. 

Our results of operations fluctuate significantly and are difficult to predict. 

Our results of operations have historically experienced, and may continue to experience, significant fluctuations as a 
result of a variety of factors, including, among others, the amount and timing of our natural gas vehicle fuel sales, station 
construction sales, sales of RINs and LCFS Credits and recognition of government credits, grants and incentives, such as 
AFTC (for example, we recorded all of the AFTC revenue associated with our vehicle fuel sales made in 2017 during the 
first quarter of 2018, and we recorded all of the AFTC revenue associated with our vehicles fuel sales made in 2018 and 
2019 in the fourth quarter of 2019); fluctuations in commodity, station construction and labor costs and natural gas, RIN 
and LCFS Credit prices; variations in the fair value of certain of our derivative instruments that are recorded in revenue; 
the amount and timing of our billing, collections and liability payments; and the other factors described in these risk factors. 

Our performance in certain periods has also been affected by transactions or events that have resulted in significant 
cash or non-cash gains or losses. For example, our results for 2017 were positively affected by gains related to repurchases 
or retirements of our outstanding convertible debt at a discount and by a gain related to the BP Transaction, but were also 
negatively affected by significant charges in connection with our closure of certain fueling stations, the decreased operating 
performance of our former natural gas fueling compressor manufacturing business, our determination of an impairment of 
assets as a result of the foregoing, and certain other actions. These or other similar gains or losses may not recur regularly, 
in the same amounts or at all in future periods. 

These significant fluctuations in our operating results may render period-to-period comparisons less meaningful, and 
investors in our securities should not rely on the results of one period as an indicator of performance in any other period. 
Additionally,  these  fluctuations  in  our  operating  results  could  cause  our  performance  in  any  period  to  fall  below  the 

24 

financial guidance we may have provided to the public or the estimates and projections of the investment community, 
which could negatively affect the price of our common stock. 

We depend on key people to generate and oversee our strategies and operate our business, and our business could be 
harmed if we are unable to retain these key people. 

We believe our future success is dependent on the contributions of certain key people, including our executive officers 
and directors. In many cases, we believe these individuals’ knowledge of our business and experience in our industry 
would be difficult to replace. As a result, and due to the high levels of competition for talent in our industry, we may incur 
significant costs to try to retain these key people. All of our employees, however, including our management team, are 
permitted to terminate their employment relationships with us at any time, and any of our directors could resign at any 
time or fail to be re-elected by our stockholders on an annual basis. If we are unable to retain our key people, or if these 
individuals leave our Company and we are unable to attract and successfully integrate quality replacements in a timely 
manner and on reasonable terms, our business, operating results and financial condition could be harmed. 

Natural gas purchase and sale commitments may exceed demand or supply, as applicable, which could cause our costs 
relative to our revenue to increase. 

We are a party to two long-term natural gas purchase agreements with a take-or-pay commitment, and we may enter 
into additional similar contracts in the future. These take-or-pay commitments require us to pay for the natural gas we have 
agreed to purchase, irrespective of whether we sell the gas. If the market for natural gas as a vehicle fuel declines or fails 
to develop as we anticipate, if we lose natural gas vehicle fueling customers, or if demand under any existing or future 
sales contract diminishes, these take-or-pay commitments may exceed our natural gas demand. In addition, we are involved 
in various firm commitment natural gas supply arrangements, and we may establish additional similar arrangements in the 
future. These arrangements require us to supply certain volumes of natural gas over specified periods of time, and subject 
us to deficiency payments or other penalties if we are unable to deliver the committed volumes as and when required. If 
we fail to generate sufficient demand for our take-or-pay purchase commitments or satisfy our firm supply commitments, 
our supply costs or operating expenses could increase without a corresponding increase in revenue, which could negatively 
affect our margins, performance and liquidity. 

We provide financing to fleet customers for natural gas vehicles, which exposes our business to credit risks. 

We directly lend to certain qualifying customers a portion, and occasionally all, of the purchase price of natural gas 
vehicles they agree to buy. This direct financing is in addition to our funding of the incremental cost of natural gas heavy-
duty trucks purchased or leased in our Zero Now truck financing program. These financing activities involve a number of 
risks, including general credit risks associated with equipment finance relationships. For example, financed equipment 
often consists mostly of vehicles, which are  mobile and easily damaged, lost or stolen. In addition, the borrower may 
default on payments, enter bankruptcy proceedings or liquidate. The materialization of any of these risks could harm our 
vehicle finance business and our results of operations and liquidity. 

Our warranty reserves may not adequately cover our warranty obligations, which could result in unexpected costs. 

We provide product warranties with varying terms and durations for the stations we build and sell, and we establish 
reserves for the estimated liability associated with these warranties. Our warranty reserves are based on historical trends 
and any specifically identified warranty issues known to us, and the amounts estimated for these reserves could differ 
materially from the warranty costs we may actually incur. We would be adversely affected by an increase in the rate or 
volume of warranty claims or the amounts involved in warranty claims, any of which could increase our costs beyond our 
established reserves and cause our cash position and financial condition to suffer. 

We rely on information technology in our operations, and any material failure, inadequacy, interruption or security 
failure of that technology could harm our business. 

Increased global IT security threats and more sophisticated and targeted computer crime pose a risk to the security of 
our systems and networks and the confidentiality, availability and integrity of our data. There have been several recent, 

25 

highly publicized cases in which organizations of various types and sizes have reported the unauthorized disclosure of 
customer or other confidential information, as well as cyberattacks involving the dissemination, theft and destruction of 
corporate information, intellectual property, cash or other valuable assets. There have also been several highly publicized 
cases in which hackers have requested “ransom” payments in exchange for not disclosing customer or other confidential 
information or for not disabling the target company’s computer or other systems. Implementing security measures designed 
to prevent, detect, mitigate or correct these or other IT security threats involves significant costs. Although we have taken 
steps to protect the security of our information systems and the data maintained in those systems, we have, from time to 
time, experienced threats to our data and systems, including malware and computer virus attacks and it is possible that in 
the future our safety and security measures will not prevent the systems’ improper functioning or damage, or the improper 
access or disclosure of personally identifiable information such as in the event of cyberattacks. Any IT security threats that 
are  successful  against  our  security  measures  could,  depending  on  their  nature  and  scope,  lead  to  the  compromise  of 
confidential information, improper use of our systems and networks, manipulation and destruction of data, operational 
disruptions and substantial financial outlays. Further, a cyberattack could occur and persist for an extended period of time 
without detection, and an investigation of any successful cyberattack would likely require significant time, costs and other 
resources to complete. We may be required to expend significant financial resources to protect against or to remediate 
such  cyberattacks.  In  addition,  our  technology  infrastructure  and  information  systems  are  vulnerable  to  damage  or 
interruption from natural disasters, power loss and telecommunications failures. Any failure to maintain proper function, 
security  and  availability  of  our  information  systems  and  the  data  maintained  in  those  systems  could  interrupt  our 
operations, damage our reputation, subject us to liability claims or regulatory penalties, harm our business relationships or 
increase our security and insurance costs, which could have a material adverse effect on our business, financial condition 
and results of operations. 

Global climate change may increase the frequency and severity of weather events and the losses resulting from these 
events, which could have a material adverse effect on our business and the markets in which we operate. 

Over the past several years, changing weather patterns and climatic conditions have added to the unpredictability and 
frequency of natural disasters in certain parts of the world and have created additional uncertainty as to future trends. We 
cannot predict whether or to what extent natural disasters may occur or increase, nor can we predict the effect such events 
will have on our operations or the geographic markets in which we operate; however, any increased frequency or severity 
of these events could increase their overall negative effect on economic conditions in these regions and could also directly 
affect  our  operations  if  our  fueling  stations,  our  LNG  plants  or  our  customers’  operations  are  damaged  or  otherwise 
subjected to limited operations as a result of such an event. The occurrence of any of these risks could negatively affect 
our business, performance and liquidity, and could also cause the price of our common stock to decline. 

We may not generate sufficient cash flow from our business to pay our debt. 

We have material indebtedness, and we are permitted to incur significant additional debt under the agreements we 
established in connection with our Zero Now truck financing program. Our outstanding and permitted indebtedness could 
make  us  more  vulnerable  to  adverse  changes  in  general  U.S.  and  worldwide  economic,  regulatory  and  competitive 
conditions,  limit  our  flexibility  to  plan  for  or  react  to  changes  in  our  business  or  industry,  place  us  at  a  disadvantage 
compared  to  our  competitors  that  have  less  debt  or  limit  our  ability  to  borrow  or  otherwise  raise  additional  capital  as 
needed. 

Our  payments  of  amounts  owed  under  our  agreements  related  to  our  Zero  Now  program  and  various  other  debt 
instruments  will  reduce  our  cash  resources  available  for  other  purposes,  including  pursuing  strategic  initiatives, 
transactions or other opportunities, satisfying our other commitments and generally supporting our operations. Moreover, 
our  ability  to  make  these  payments  depends  on  our  future  performance,  which  is  subject  to  economic,  financial, 
competitive and other factors, including those described in these risk factors, and many of which are beyond our control. 
Our business may not generate sufficient cash from operations to service our debt. 

If  we  cannot  meet  our  debt  obligations  from  our  operating  cash  flows,  we  may  pursue  one  or  more  alternative 
measures.  For instance, we  are permitted  to  issue up  to 14.0  million  shares of our  common  stock  to repay part  of  the 
outstanding principal amount of our outstanding convertible notes due June 2020. Any repayment of our debt with equity, 
however,  would  dilute  the  ownership  interests  of  our  existing  stockholders.  Additionally,  because  the  agreements 

26 

governing much of our existing indebtedness contain minimal restrictions on our ability to incur additional debt and do 
not require us to maintain financial ratios or specified levels of net worth or liquidity, we may seek capital from other 
sources to service our debt, such as selling assets, restructuring or refinancing our existing debt or obtaining additional 
equity or debt financing. Our ability to engage in any of these activities, if we decide to do so, would depend on the capital 
markets and the state of our industry, business and financial condition at the time, and could also subject us to significant 
risks, which are discussed elsewhere in these risk factors. Moreover, we may not be able to obtain any additional capital 
we may pursue on desirable terms, at a desirable time or at all. Any failure to pay our debts when due could result in a 
default on our debt obligations. In addition, certain of our debt agreements contain restrictive covenants, and any failure 
by us to comply with these covenants could also cause us to be in default under these agreements. 

In the event of any default on our debt obligations, the holders of the indebtedness could, among other things, declare 
all amounts owed immediately due and payable. Additionally, with respect to any amounts owed under our term credit 
agreement that are paid by THUSA pursuant to its guaranty rather than by us, THUSA would be permitted to take direct 
possession of funds paid by fleet operators under any fuel supply agreements we establish in connection with our Zero 
Now truck financing program. Any such declaration or possession of funds could deplete all or a large portion of our 
available  cash  flow,  and  thereby  reduce  the  amount  of  cash  available  to  pursue  our  business  plans  or  force  us  into 
bankruptcy or liquidation. 

Risks Related to Our Common Stock 

A significant portion of our common stock is beneficially owned by a single stockholder that may have interests that 
differ from yours and that is able to exert significant influence over our corporate decisions, including a change of 
control. 

Following our issuance and sale of our common stock to Total in June 2018, Total holds approximately 25% of our 
outstanding shares of common stock and the largest ownership position of our Company. In addition, TOTAL was granted 
certain special rights that our other stockholders do not have in connection with its acquisition of this ownership position, 
including the right to designate two individuals to serve as directors of our Company and a third individual to serve as an 
observer on  certain  of our board  committees.  TOTAL  or other  large  stockholders  may  be  able  to  influence or  control 
matters  requiring  approval  by  our  stockholders,  including  the  election  of  directors  and  mergers,  acquisitions  or  other 
extraordinary transactions. TOTAL, however, may have interests that differ from yours and may vote or otherwise act in 
ways with which you disagree or that may be adverse to your interests. A concentration of stock ownership may also have 
the effect of delaying, preventing or deterring a change of control of our Company, which could deprive our stockholders 
of an opportunity to receive a premium for their shares of our common stock as part of a sale of our Company and could 
affect the market price of our common stock. Conversely, such a concentration of stock ownership may facilitate a change 
of control under terms you and other stockholders may not find favorable or at a time when you and other stockholders 
may prefer not to sell. 

Sales of our common stock, or the perception that such sales may occur, could cause the market price of our stock to 
drop significantly, regardless of the state of our business. 

All outstanding shares of our common stock are eligible for sale in the public market, subject in certain cases to the 
requirements of Rule 144 under the Securities Act. Also, shares of our common stock that may be issued upon the exercise, 
vesting or conversion of our outstanding stock options, restricted stock units and convertible notes may be eligible for sale 
in the public market, to the extent permitted by Rule 144 and the provisions of the applicable stock option, restricted stock 
unit and convertible note agreements or if such shares have been registered under the Securities Act. For instance, we filed 
a registration statement with the SEC to cover the resale of the 50,856,296 shares of our common stock issued and sold to 
Total, which such registration statement was declared effect in August 2018. We have also registered for resale all shares 
of our common stock issuable upon conversion of the 7.5% notes originally issued to T. Boone Pickens and Green Energy 
Investment  Holdings,  LLC  in  June 2013.  See  Note  13  for  additional  information.  If  these  shares  are  sold,  or  if  it  is 
perceived that they may be sold, in the public market, the trading price of our common stock could decline. 

27 

The price of our common stock may continue to fluctuate significantly, and you could lose all or part of your investment. 

The market price of our common stock has experienced, and may continue to experience, significant volatility. Factors 
that may cause volatility in the price of our common stock, many of which are beyond our control, include, among others: 

•  The factors that may influence the adoption of natural gas as a vehicle fuel, as discussed elsewhere in these risk 

factors; 

•  Our ability to implement our business plans and initiatives, such as our Zero Now truck financing program, and 

their anticipated, perceived or actual level of success; 

•  Failure to meet or exceed any financial guidance we have provided to the public or the estimates and projections 

of the investment community; 

•  The market’s perception of the success and importance of any of our acquisitions, divestitures, investments or 

other strategic relationships or transactions; 

•  The amount of and timing of sales of, and prices for, RINs and LCFS Credits; 

•  Changes in political, regulatory, economic and market conditions; 

•  Changes to our management, including officer or director departures, replacements or other changes; 

•  Our issuance of additional shares of our common stock (or securities convertible into or exchangeable for our 

common stock);  

•  A change in the trading volume of our common stock; and 

•  The other risks described in these risk factors. 

In addition, the securities markets have from time to time experienced significant price and volume fluctuations that 
are unrelated to the operating performance of particular companies, but which have affected the market prices of these 
companies’ securities. These market fluctuations may also materially and adversely affect the market price of our common 
stock. 

Volatility or declines in the market price of our common stock could have other negative consequences, including, 
among others, further impairments to our assets (following the asset impairment charges we recorded in the third and 
fourth quarters of 2017 related to our former natural gas fueling compressor manufacturing business and our closure of 
certain fueling stations), potential impairments to our goodwill and a reduced ability to use our common stock for capital-
raising,  acquisitions or other  purposes. The  occurrence  of  any of  these risks  could  materially  and  adversely  affect our 
financial condition, results of operations and liquidity and could cause further declines in the market price of our common 
stock. 

Item 1B.   Unresolved Staff Comments. 

None. 

Item 2.   Properties. 

Our corporate headquarters are located at 4675 MacArthur Court, Suite 800, Newport Beach, California 92660, where 

we occupy approximately 48,000 square feet of office space. Our lease for this facility expires in June 2021. 

28 

We  own  and  operate  the  Boron  Plant  in  Boron,  California,  approximately  125  miles  from  Los  Angeles.  In 

November 2006, we entered into a 30-year ground lease for the 36 acres on which this plant is situated. 

We own and operate the Pickens Plant located in Willis, Texas, approximately 50 miles north of Houston. We own 

approximately 24 acres of land on which this plant is situated, along with approximately 34 acres surrounding the plant. 

Item 3.   Legal Proceedings. 

From time to time, we may become involved in various legal proceedings that arise in the ordinary course of our 
business,  including  lawsuits,  claims,  audits,  government  enforcement  actions  and  related  matters.  It  is  not  possible  to 
predict when or if these proceedings may arise, nor is it possible to predict the outcome of any proceedings that do arise, 
including, among other things, the amount or timing of any liabilities we may incur, and any such proceedings could have 
a  material  effect  on  us  regardless  of  outcome.  In  the  opinion  of  management,  however,  we  are  not  a  party,  and  our 
properties are not subject, to any pending legal proceedings that are material to us. 

Item 4.   Mine Safety Disclosures. 

None. 

29 

 
 
Item 5.   Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity 
Securities. 

PART II 

Market Information 

Our common stock trades on The Nasdaq Global Select Market under the symbol “CLNE.” 

Holders 

There were approximately 53 holders of record of our common stock as of March 4, 2020. 

Performance Graph 

This performance graph shall not be deemed “soliciting material” or “filed” with the SEC or subject to Regulation 
14A or 14C or to the liabilities of Section 18 of the Exchange Act, or incorporated by reference into any filing under the 
Securities Act or the Exchange Act, except to the extent that we specifically request that such information be treated as 
soliciting material or specifically incorporate it by reference into such a filing. The graph is required by applicable rules of 
the SEC and is not intended to forecast, predict or be indicative of the possible future performance of our common stock. 

The following graph compares the five-year total return to holders of our common stock relative to the cumulative 
total returns of the Nasdaq Global Market Index and the Russell 2000 Index. The graph assumes that $100 was invested 
in our common stock and on each of these indices at the close of market on December 31, 2014 (the last trading day before 
the beginning of our fifth preceding fiscal year). We chose to include the Russell 2000 Index because it includes issuers 
with similar market capitalizations as us and due to the lack of a comparable industry or line-of-business index or peer 

30 

group, as we are the only actively traded public company whose only line of business is to sell natural gas for use as a 
vehicle fuel and the associated equipment and services necessary to use natural gas as a vehicle fuel. 

150.00%

100.00%

50.00%

0.00%

-50.00%

-100.00%

Clean Energy Fuels Corp. (NasdaqGS:CLNE) - Share Pricing

Russell 2000 Index (^RUT) - Index Value

NASDAQ Composite Index (^COMP) - Index Value

Item 6.   Selected Financial Data. 

The  following  selected  historical  consolidated  financial  data  should  be  read  together  with  Item 7.  Management’s 
Discussion and Analysis of Financial Condition and Results of Operations and our consolidated financial statements and 
the  related  notes  included  in  this  report,  which  describe,  among  other  things,  factors  that  could  materially  affect  the 
comparability of the data reflected below. Additionally, see Item 1A. Risk Factors and Item 7. Management’s Discussion 
and Analysis of Financial Condition and Results of Operations for discussions of material uncertainties that might cause 
the data reflected below not to be indicative of our future financial condition or results of operations. 

The  consolidated  statements  of  operations  data  for  the years  ended  December 31,  2017,  2018  and  2019  and  the 
consolidated balance sheet data as of December 31, 2018 and 2019 are derived from our audited consolidated financial 
statements included in this report. The consolidated statements of operations data for the years ended December 31, 2015 
and 2016 and the consolidated balance sheet data as of December 31, 2015, 2016 and 2017 are derived from our audited 
consolidated financial statements that are not included in this report. 

During the year ended December 31, 2017, we sold certain assets to BP in the BP Transaction, and combined our 
natural gas compressor subsidiary, CEC, with the natural gas compressor subsidiaries of Landi Renzno S.p.A., in a new 
company known as “SAFE&CEC S.r.l.” (referred to as the “CEC Combination”). In addition, the results of the divested 
companies  are  included  in  our  consolidated  financial  statements  prior  to  their  respective  dates  of  divestiture.  The 

31 

 
 
consolidated balance sheet data as of December 31, 2019 reflects the modified retrospective transition method adoption of 
Accounting Standards Update (“ASU”) 2016-02, Leases (842). 

2015 

Year Ended December 31,  
2016 
2017 
(In thousands, except share data) 

2018 

2019 

Statement of Operations Data: 
Total revenue (1) 
Operating income (loss) 
Net income (loss) 
Basic income (loss) per share 
Diluted income (loss) per share 

(1)  Total revenue includes the following amounts: 

 (41,623) 
   (135,458) 

  $   384,320   $ 402,656   $  341,599   $ 346,419   $ 344,065 
 9,928 
    13,259 
 0.10 
 0.10 

 3,895  
 (9,183) 
 (0.02)  $
 (0.02)  $

   (134,447) 
 (81,391) 

    (17,637)  
    (13,724)  

 (0.53)  $
 (0.53)  $

 (0.10)   $
 (0.10)   $

 (1.47)  $
 (1.47)  $

  $ 
  $ 

(In thousands) 
Alternative fuels tax credits (AFTC) 

2015 
 30,986   $ 

   $ 

Year Ended December 31,  
      2017       

2016 
 26,638   $   —   $ 

2018 
 26,729   $ 

2019 
 47,123 

Balance Sheet Data: 
Cash and cash equivalents and short-term investments 
Restricted cash, short-term 
Restricted cash, long-term 
Working capital 
Total assets 
Total debt inclusive of capital and finance lease 
obligations (1) 
Total Clean Energy Fuels Corp. stockholders' equity 

December 31,  

2015 

2016 

2017 

2018 

2019 

(In thousands) 

   $ 

 146,668    $  109,837    $  177,543    $   95,490   $ 106,136 
 15 
 4,000 
   145,347      131,230 
   699,082      777,085 

 1,127  
 —  
   101,597  
   791,912  

 6,996  
 —  
   172,542  
   897,257  

 4,240  
 —  
 82,773  
   1,000,528  

 780    
 4,000    

 567,150  
 302,552  

   312,376  
   468,865  

   260,087  
   426,990  

    84,184    
 92,215 
   507,998      533,408 

(1)  2016, 2017, 2018, and 2019 amounts include debt issuance costs as a deduction from the carrying amount of the related liability. 

Item 7.   Management’s Discussion and Analysis of Financial Condition and Results of Operations. 

The  following  Management’s  Discussion  and  Analysis  of  Financial  Condition  and  Results  of  Operations  (this 
discussion, as well as discussions under the same heading in our other periodic reports, are referred to as the “MD&A”) 
should be read together with our audited consolidated financial statements and the related notes included in this report, 
and  all  cross  references  to  notes  included  in  this  MD&A  refer  to  the  identified  note  in  such  consolidated  financial 
statements. This section of the Form 10-K generally discusses 2019 and 2018 items and year-to-year comparisons of 2019 
to 2018. Discussions of 2017 items and year-to-year comparisons of 2018 and 2017 that are not included in this Form 10-K 
can be found in “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in Part II, 
Item 7 of our Annual Report on Form 10-K for the year ended December 31, 2018, filed with the SEC on March 12, 2019. 

Cautionary Note Regarding Forward-Looking Statements 

This  MD&A  contains  forward-looking  statements.  See  the  discussion  about  these  statements  under  “Cautionary 

Note Regarding Forward-Looking Statements” at the beginning of this report. 

Overview 

We are North America’s leading provider of the cleanest fuel for the transportation market, based on the number of 
stations operated and the amount of gasoline gallon equivalents (“GGEs”) of RNG, CNG and LNG delivered. Through 
our sales of Redeem™ RNG, which is derived from biogenic methane produced by the breakdown of organic waste, we 

32 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
    
    
     
     
 
 
 
 
 
 
  
 
 
 
 
 
 
  
  
  
 
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     
     
     
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
    
    
    
 
 
 
 
 
 
     
 
     
 
     
 
   
   
 
  
  
  
  
 
  
  
  
  
 
  
 
 
  
 
  
 
help thousands of vehicles, from airport shuttles to city buses to waste and heavy-duty trucks, to reduce their amount of 
climate-harming greenhouse gas by at least 70% and up to 300% depending on the source of the RNG feedstock. Redeem 
is delivered through compressed natural gas (CNG) and liquefied natural gas (LNG); sales of our Redeem RNG have 
increased dramatically, from 13.0 million GGEs in 2013 (the year we introduced Redeem RNG to the vehicle fuel market) 
to 143.3 million GGEs in 2019. 

Our principal business is supplying RNG, CNG and LNG for medium and heavy-duty vehicles and providing O&M 
services for public and private vehicle fleet customer stations. As a comprehensive solution provider, we also design, build, 
operate and maintain fueling stations; sell and service natural gas fueling compressors and other equipment used in CNG 
stations and LNG stations; offer assessment, design and modification solutions to provide operators with code-compliant 
service and maintenance facilities for natural gas vehicle fleets; transport and sell CNG and LNG via “virtual” natural gas 
pipelines and interconnects; procure and sell RNG; sell tradable credits we generate by selling RNG and conventional 
natural gas as a vehicle fuel, including RIN Credits and LCFS Credits; help our customers acquire and finance natural gas 
vehicles;  and obtain federal,  state  and  local  tax  credits, grants  and  incentives. In  addition, before  March 31, 2017,  we 
produced RNG at our own production facilities (which we sold, along with certain of our other RNG production assets, in 
the  BP  Transaction),  and  before  December 29,  2017,  we  manufactured  natural  gas  fueling  compressors  and  other 
equipment  used  in  CNG  stations  (which  we  combined  with  another  company’s  natural  gas  fueling  compressor 
manufacturing business in a newly formed joint venture, in the CEC Combination). 

We serve fleet vehicle operators in a variety of markets, including heavy-duty trucking, airports, refuse, public transit, 
industrial and institutional energy users, and government fleets. We believe these fleet markets will continue to present a 
growth opportunity for natural gas vehicle fuel for the foreseeable future. As of December 31, 2019, we serve over 1,000 
fleet customers operating over 48,000 natural gas vehicles, and we own, operate or supply approximately 550 natural gas 
fueling stations in 41 states in the United States and four provinces in Canada. 

Performance Overview 

This performance overview discusses matters on which our management focuses in evaluating our financial condition 

and operating results. 

Sources of Revenue 

The following table represents our sources of revenue: 

Revenue (in millions) 
Volume-related (1) 
Compressor sales (2) 
Station construction sales 
AFTC (3) 
Other (4) 
Total  

  $ 

  $ 

$ 

2017 
 264.9   $ 

Year Ended December 31,  
2018 
 286.7  
 —  
 25.5  
 26.7  
 7.5  
 346.4  

 23.5  
 51.9  
 —  
 1.3  
 341.6   $ 

$ 

2019 
 273.6 
 — 
 23.1 
 47.1 
 0.3 
 344.1 

(1)  Our volume-related revenue primarily consists of sales of RNG, CNG and LNG fuel, performance of O&M services, and sales of RINs and LCFS 
Credits in addition to changes in fair value of our derivative instruments. More information about our volume of fuel and O&M services delivered 
in the periods is included below under “Key Operating Data,” and more information about our derivative instruments, which consist of commodity 

33 

 
 
 
 
 
 
 
 
 
 
 
 
     
     
     
 
  
  
  
 
  
  
  
 
  
  
  
 
  
  
  
 
swap and fueling contracts, is included below under “2018-2020 Developments.” Additionally, a discussion of volume-related revenue is included 
below under “Results of Operations”. The following table summarizes our volume-related revenue in the periods: 

Revenue (in millions) 
Fuel sales and performance of O&M services 
Change in fair value of derivative instruments (a) 
RIN Credits (b) 
LCFS Credits (b) (c) 

Total volume-related revenue 

  $ 

  $ 

Year Ended December 31,  
2018 
 249.0  
 10.3   
 16.4   
 11.0   
 286.7  

2017 
 240.8   $ 
 —   
 21.6   
 2.5   
 264.9   $ 

$ 

$ 

2019 
 248.8 
 (6.6)
 18.1 
 13.3 
 273.6 

a. 

The change in fair value of derivative instruments is related to the Company’s commodity swap and customer fueling contracts. The amounts 
are classified as revenue because the Company’s commodity swap contracts are used to  economically offset the risk associated with the 
diesel-to-natural gas price spread resulting from customer fueling contracts under the Company’s Zero Now truck financing program.  

b.  Revenue from sales of RINs and LCFS Credits decreased after the first quarter of 2017 due to the effects of the BP Transaction. See “Key 

Trends” below for more information. 

c.  We recognized no revenue from sales of LCFS Credits during the third and fourth quarters of 2017 because (i) the majority of the LCFS 
Credits we had generated were sold in the BP Transaction and (ii) we could not sell our remaining LCFS Credits due to restrictions imposed 
on our credit account pending completion of an ongoing administrative review by CARB, which was completed in November 2017. See “Key 
Trends” below for more information. 

(2)  We completed the CEC Combination on December 29, 2017 (see Note 4). As a result, no revenue for compressor sales has been or will be received 

or recorded after that date. 

(3)  Represents the AFTC, an alternative fuels tax credit, which expired on December 31, 2016, but in February 2018, was reinstated for vehicle fuel 
sales made in 2017. In December 2019, the AFTC was reinstated retroactively for vehicle fuels sales made in 2018 through 2020. See “2018-2020 
Developments” below for more information. 

(4) 

Included in other revenue for the years ended December 31, 2017 and 2018 is sales of used natural gas heavy-duty trucks of $0.6 million and $7.5 
million, respectively, which we purchased in 2017 and 2018. 

Key Operating Data 

In evaluating our operating performance, our management focuses primarily on: (1) the amount of RNG, CNG and 
LNG gasoline gallon equivalents delivered (which we define as (i) the volume of gasoline gallon equivalents we sell to 
our customers as fuel, plus (ii) the volume of gasoline gallon equivalents dispensed at facilities we do not own but where 
we  provide  O&M  services  on  a  per-gallon  or  fixed  fee  basis,  plus  (iii) our  proportionate  share  of  the  gasoline  gallon 
equivalents sold as CNG by our joint venture with Mansfield Ventures, LLC called Mansfield Clean Energy Partners, LLC 
(“MCEP”), plus (iv) for periods before completion of the BP Transaction, our proportionate share (as applicable) of the 
gasoline gallon equivalents of RNG produced and sold as pipeline quality natural gas by our former RNG production 
facilities, which we sold in the BP Transaction), (2) our station construction cost of sales, (3) our gross margin (which we 
define as revenue minus cost of sales), and (4) net income (loss) attributable to us. The following tables present our key 
operating data for the years ended December 31, 2017, 2018, and 2019: 

Gasoline gallon equivalent delivered (in millions) 
CNG (1) 
LNG 
Non-vehicle RNG (2) 

Total 

Year Ended December 31,  
2018 
 299.5  
 66.0  
 —  
 365.5  

2017 
 283.4  
 66.1  
 1.9  
 351.4  

2019 
 335.7 
 65.1 
 — 
 400.8 

RNG sold as vehicle fuel under the brand name RedeemTM is included in the CNG or LNG amounts in the table above as 
applicable based on the form in which it was sold. GGEs of Redeem sold for the years ended December 31, 2017, 2018 
and 2019 were as follows: 

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Gasoline gallon equivalent delivered (in millions) 
RedeemTM 

Gasoline gallon equivalent delivered (in millions) 
O&M services 
Fuel (1) 
Fuel and O&M services (3) 

Total 

2017 

Year Ended December 31,  
2018 
 110.1  

 78.5  

2019 
 143.3 

Year Ended December 31,  
2018 
 206.1  
 133.6     
 25.8     
 365.5     

2017 
 199.5  
 127.3     
 24.6     
 351.4     

2019 
 211.4 
 162.4 
 27.0 
 400.8 

Other operating data (in millions) 
Station construction cost of sales 
Gross margin (4) (5) (6) 
Net income (loss) attributable to Clean Energy Fuels. Corp (4) 

Year Ended December 31,  
2018 

2019 

2017 

  $ 
   $ 
   $ 

 47.0   $ 
 85.8    $ 
 (79.2)   $ 

 25.1   $ 
 133.5    $ 
 (3.8)   $ 

 23.5 
 132.0 
 20.4 

(1)  As noted above, amounts include our proportionate share of the GGEs sold as CNG by our joint venture MCEP. GGEs sold by this joint venture 

were 0.5 million, 0.5 million and 0.4 million for the years ended December 31, 2017, 2018 and 2019, respectively. 

(2)  Represents RNG sold as non-vehicle fuel. RNG sold as vehicle fuel, is sold under the brand name Redeem™ and is included in this table in the 

CNG or LNG amounts as applicable based on the form in which it was sold.  

(3)  Represents gasoline gallon equivalents at stations where we provide both fuel and O&M services. 

(4) 

Includes the following amounts of AFTC revenue: $0.0 million, $26.7 million and $47.1 million for the years ended December 31, 2017, 2018, 
and 2019, respectively. 

(5)  For the year ended December 31, 2017, gross margin includes an inventory valuation provision of $13.2 million. See Note 3 for more information 

regarding the inventory valuation provision. 

(6)  For the years ended December 31, 2018 and 2019, gross margin includes an unrealized gain (loss) from the change in fair value of commodity 
swap and customer contracts of $10.3 million and $(6.6) million, respectively. See Note 8 for more information regarding the commodity swap 
and customer contracts. 

2018 -2020 Developments 

Zero  Now  Truck  Financing  Program.  We  launched  the  Zero  Now  truck  financing  program,  which  is  intended  to 
facilitate and increase the deployment of commercially available ultra-low NOx natural gas heavy-duty trucks in the United 
States and encourage these operators to fuel their trucks at our stations. The Zero Now program is unique and complex, 
and has involved our entry into various arrangements in order to launch the program, including a term credit agreement 
for delayed draw loans of up to $100.0 million; a credit support agreement with THUSA, a wholly owned subsidiary of 
TOTAL, under which THUSA has guaranteed our obligations under the term credit agreement in exchange for a quarterly 
fee; and commodity swap arrangements with an affiliate of THUSA and TOTAL covering five million diesel gallons of 
natural gas fuel volume annually from April 2019 through June 2024, which are intended to manage diesel price fluctuation 
risks related to the natural gas fuel supply commitments we expect to make in our anticipated fueling agreements with 
fleet  operators  that  participate  in  the  Zero  Now  program.  See  the  disclosure  under  “Customer  Markets-Zero  Now”  in 
“Item 1. Business” of this report for information about these agreements and the structure of the program. 

Debt  Repurchase.  In  December 2018,  we  purchased  from  the  holders  thereof  all  outstanding  7.5%  Convertible 
Notes due July 2019, having an aggregate outstanding principal amount of $50.0 million, for a cash purchase price of 
$50.5 million. Upon such purchase, all such notes were surrendered and canceled in full and we have no further obligations 
under these notes. As a result of the early retirement of these notes we saved $1.7 million in interest expense in 2019. See 
Note 13 for more information about our outstanding debt. 

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Expanded BP RNG Supply Agreement. In October 2018, our supply agreement with BP was amended to extend the 
term and add additional RNG supply. We share with BP in the RINs and LCFS Credits generated from the increased RNG 
supply sold through our vehicle fueling infrastructure and to other customers. 

Full Cash Repayment of 5.25% Notes. On October 1, 2018, we paid to the holders of our 5.25% Convertible Senior 
Notes due  October 2018,  in  cash,  all  amounts  then  owed  under  the  notes,  totaling  an  aggregate  of  $110.5  million  in 
principal amount plus $2.9 million in accrued and unpaid interest. Upon such payment, all such notes were surrendered 
and canceled in full and we have no further obligations under these notes. 

Total Private Placement. On May 9, 2018, we entered into a stock purchase agreement with Total Marketing Services, 
S.A. (“Total”), a wholly owned subsidiary of TOTAL, for the sale and issuance to Total of up to 50,856,296 shares of our 
common stock for a per share purchase price of $1.64 and an aggregate purchase price of $83.4 million, all in a private 
placement (the “Total Private Placement”). The Total Private Placement closed on June 13, 2018, upon the satisfaction of 
all  conditions  to  closing.  We  used  the  net  proceeds  from  the  Total  Private  Placement  for  working  capital  and  general 
corporate purposes, which included retiring a portion of our outstanding indebtedness. 

The agreements related to the Total Private Placement also contain representations, warranties and covenants made 
by us and Total regarding, among other matters, certain director designation rights we have granted to Total (along with 
undertakings by certain of our stockholders, including all of our directors and executive officers, to vote their shares in 
favor of such director designees in future elections of directors), certain registration rights we have granted to Total for the 
shares that were issued and sold, certain limitations on Total’s purchase of additional securities of our Company without 
the approval of our board of directors, and various other matters that are customary for transactions of this nature. 

AFTC. The AFTC, which had previously expired on December 31, 2016, was reinstated on February 9, 2018 to apply 
to vehicle fuel sales made from January 1, 2017 through December 31, 2017. As a result, all AFTC revenue for vehicle 
fuel we sold in the 2017 calendar year, which totaled $25.2 million, was recognized and collected during the year ended 
December 31, 2018. In addition, during the year ended December 31, 2018, the Internal Revenue Service approved, and 
we recognized as revenue, $1.5 million of AFTC credit claims related to prior years. On December 20, 2019, AFTC was 
retroactively extended beginning January 1, 2018 through December 31, 2020. As a result, AFTC revenue for vehicle fuel 
we sold in 2018 and 2019, which totaled $47.1 million, was recognized during the year ended December 31, 2019. The 
AFTC credit for 2017, 2018 and 2019 was equal to $0.50 per gasoline gallon equivalent of CNG that we sold as vehicle 
fuel, and $0.50 per diesel gallon of LNG that we sold as vehicle fuel. AFTC is currently available through December 31, 
2020 and may not be reinstated for vehicle fuel sales made after that date. 

NG Advantage. During the year ended December 31, 2019, we loaned to our subsidiary NG Advantage, LLC (“NG 
Advantage”) an aggregate of $26.7 million, all of which remained outstanding as of December 31, 2019. All such debt 
was governed by the terms of a delayed draw convertible note that permitted NG Advantage to draw up to $26.7 million, 
subject to certain conditions. All outstanding principal under the note bore interest at a rate of 12.0% per annum, and all 
unpaid principal and accrued interest under the note was due on the earlier of December 31, 2019, subject to extension at 
the Company's discretion, or the occurrence of an event of default (subject to notice requirements and cure periods in 
certain circumstances). In connection with this debt, on June 28, 2019 and November 27, 2019, NG Advantage issued us 
warrants  to  purchase  86,879  and  2,000,000  common  units,  respectively.  These  intercompany  transactions  have  been 
eliminated in consolidation.  

In February 2020, we converted the principal and accrued interest under the convertible promissory note into common 

units of NG Advantage resulting in an increase in our controlling interest in NG Advantage to 93.2%. 

See Notes 5 and 23 for additional information regarding the convertible promissory note. 

Debt Level and Debt Compliance 

As of December 31, 2019, we had total indebtedness, excluding finance lease obligations, of $89.1 million in principal 
amount, of which approximately $56.1 million is expected to become due in 2020. Certain of the agreements governing 

36 

our outstanding debt, which are discussed in Note 13, have certain non-financial covenants with which we must comply. 
As of December 31, 2019, we were in compliance with all of these covenants. 

Key Trends 

Market for RNG, CNG and LNG as a Vehicle Fuel 

According  to  CARB,  RNG  and  conventional  natural  gas  are  cleaner  than  gasoline  and  diesel  fuel  based  on  the 
greenhouse gas emissions produced by vehicles operated by these fuels. Additionally, RNG and conventional natural gas 
are  generally  less  expensive  than  gasoline  and  diesel  on  an  energy  equivalent  basis.  According  to  the  U.S.  Energy 
Information Administration, demand for renewable and conventional natural gas fuels in the United States has increased 
in recent years and is expected to continue to increase. We expect our sales of Redeem RNG and conventional natural gas 
to grow as more companies look to operate in an increasingly sustainable way. In addition to pressure from politicians, 
regulators  and  non-governmental  organizations,  the  investment  community  has  dramatically  stepped  up  demands  on 
companies to diminish their contributions to climate change. We believe that RNG is the best tool available today to reduce 
climate-harming greenhouse gas and meet sustainability objectives. 

The market for natural gas as a vehicle fuel, however, is a relatively new and developing market. As a result, it is 
challenging to accurately predict natural gas vehicle fuel demand, in general and in any specific geographic and customer 
markets, and consequently our timing and level of investment in particular markets may not be consistent with any growth 
in demand in these markets. Further, the new and developing nature of the natural gas vehicles fuel market has led to slow, 
volatile or unpredictable growth in many sectors. For example, to date, adoption and deployment of natural gas vehicles, 
in general and in certain of our key customer markets, including heavy-duty trucking, have been slower and more limited 
than  we  anticipated.  Also,  other  important  markets,  including  airports,  refuse  and  public  transit,  have  experienced 
fluctuations  in  their  natural  gas  adoption,  including  slower  volume  and  customer  growth  in  2018  and  2019  that  may 
continue. Moreover, adoption of and demand for the different types of natural gas vehicle fuel, including RNG, CNG and 
LNG,  are  subject  to  significant  risks,  including  decreased  LNG  volumes  in  some  markets  in  recent  periods  that  may 
continue  and  may  not  be  sufficiently  offset  by  any  increase  in  demand  for  RNG  or  CNG.  We  believe  these  market 
conditions have contributed to our lower revenue levels in recent periods. 

We believe the slow growth and unpredictability of the market for natural gas vehicle fuels has been caused by a 

number of factors, including the following: 

•  Since approximately mid-2014, the prices of oil, gasoline, diesel and natural gas have been lower on average and 
more volatile, and these trends may continue. We believe these conditions have contributed to slower and more 
limited growth in the demand for natural gas as a vehicle fuel because the price advantage of natural gas compared 
to diesel and gasoline has decreased, and we expect adoption of natural gas as a vehicle fuel and growth in our 
customer  base  and revenue will  continue  to be negatively  affected while  oil  and diesel  prices  remain  low. In 
addition, these pricing conditions have led us to reduce the prices we charge some of our customers for CNG and 
LNG, which has reduced our profit margins. 

• 

In recent years, there has been increased focus by some parties, including lawmakers, regulators, policymakers, 
environmental and advocacy organizations and other powerful groups, on electric or other alternative vehicles or 
vehicle fuels. For example, California lawmakers and regulators have implemented various measures designed to 
increase the use of electric, hydrogen and other zero-emission vehicles, including establishing firm goals for the 
number of these vehicles operating on state roads by specified dates and enacting various laws and other programs 
in support of these goals. Further, there is continued and long-standing support among many of these groups for 
gasoline and diesel-powered vehicles. If these groups continue to invest time and money in efforts to promote 
non-natural gas fuels or suppress support for natural gas, then publicity or popular sentiment for non-natural gas 
vehicle fuels could increase in our key customer markets, which could decrease the growth potential for natural 
gas as a vehicle fuel, and government policies and programs in favor of non-natural gas vehicle fuels could be 
adopted in place of existing or new programs that promote natural gas, which could reduce the benefits we receive 
from these programs. 

37 

•  We believe the lack of substantial growth in the heavy-duty trucking market has been driven in large part by 
factors outside of our control. For instance, some heavy-duty truck operators have communicated to us that their 
primary  reluctance  to  convert  to  natural  gas  trucks  stems  from  experience  or  reputation  of  unsatisfactory 
performance  by  prior  models  of heavy-duty  truck  engines,  actual or  perceived  insufficiencies  in  the  financial 
incentives  to  convert,  lack  of  demand  for  the  conversion  from  customers  and  drivers,  prioritization  of  other 
competing business concerns and improvements in diesel engine technology. If these conditions continue, then 
the growth levels in this market will continue to be low. Although we have launched our Zero Now truck financing 
program in an effort to combat certain of these operator concerns, this program may not be successful for a variety 
of reasons, in which case our volumes and revenue would not increase. Moreover, the structure of the program, 
which involves increasing our debt by potentially material amounts, paying certain interest and other fees (which 
will vary in amount but will be owed by us regardless of the level of success of the program), and possibly owing 
amounts  under  the  commodity  swap  arrangements  we  established  in  connection  with  the  program,  could 
negatively affect our liquidity. See the disclosure under “Customer Markets-Zero Now” in “Item 1. Business” of 
this report and Note 13 for more information. 

To the extent these or other factors have contributed to curtailed demand or slowing growth in the market for natural 
gas as a vehicle fuel, we believe they have also contributed to decreases in station construction activity in certain periods, 
as the success of this activity is dependent on the success of the natural gas vehicle fuels market generally. Moreover, we 
believe  these  factors  have  materially  contributed  to  the  volatility  and  overall  decline  in  our  stock  price  and  market 
capitalization in recent years, which has and could in the future lead to decreased cash flows and indications of asset or 
goodwill  impairment.  If  these  adverse  macroeconomic  conditions  and  other  uncertainties  in  our  industry  persist,  our 
financial results and stock price may continue to be adversely affected. 

In spite of these market conditions, we believe our key customer markets, including heavy-duty trucking, airports, 
refuse, public transit, industrial and institutional energy users and government fleets, are well-suited for the adoption of 
natural gas vehicle fuel because they consume relatively high volumes of fuel, refuel at centralized locations or along well-
defined routes and/or are facing increasingly stringent emissions or other environmental requirements. We also expect the 
lower greenhouse gas emissions associated with our Redeem vehicle fuel will result in increased demand for this fuel, 
resulting  in  our  continued  delivery  of  increasing  volumes  of  Redeem  to  our  vehicle  fleet  customers.  Additionally,  we 
anticipate that, over time, cities and communities in the United States and Canada will follow large cities in Europe in 
banning dirty diesel vehicles. If these projections materialize, we believe there will be growth in the consumption of natural 
gas as a vehicle fuel in our key customer and geographic markets, and our goal is to capitalize on this growth if and when 
it materializes. In that event, we expect our operating costs and capital expenditures would increase in connection with 
any growth of our business in the future. 

Our Performance 

Overview.  Our  gross  revenue  mostly  consists  of  volume-related  revenue,  compressor  and  other  equipment  sales 
(before the CEC Combination), station construction sales, and AFTC revenue. Our revenue can vary between periods due 
to a variety of factors, including, among others, the amount and timing of natural gas vehicle fuel sales, natural gas prices, 
station  construction  sales,  sales  of  RINs  and  LCFS  Credits,  compressor  and  other  equipment  sales  (before  the  CEC 
Combination),  and  recognition  of  government  credits,  grants  and  incentives,  such  as  AFTC.  In  addition,  our  volume-
related revenue  has been and  may  continue  to be  subject  to increased fluctuations  as a  result of our  entry  into  certain 
commodity swap arrangements in October 2018, because the changes in fair value of these and certain other derivative 
instruments, including existing and anticipated fueling contracts under our Zero Now truck financing program, are included 
in volume-related revenue. 

Our cost of sales can also vary between periods due to a variety of factors, including fluctuations in natural gas prices, 
station construction and labor costs, and compressor equipment costs (before the CEC Combination), as well as the other 
factors that impact our revenue levels described above. 

In  addition,  our  performance  in  certain  periods  has  been  affected  by  transactions  or  events  that  have  resulted  in 
significant cash or non-cash gains or losses. For example, our results for 2017 were positively affected by a gain related 
to repurchases and retirements of our outstanding convertible debt at a discount, and a gain related to the BP Transaction, 

38 

but our results for 2017 were negatively affected by significant charges in connection with our closure of certain fueling 
stations, the decreased operating performance of our former natural gas fueling compressor manufacturing business, our 
determination of an impairment of assets as a result of the foregoing, and certain other actions. These or other similar gains 
or losses may not recur regularly, in the same amounts or at all in future periods and, with respect to non-cash gains and 
losses, do not impact our liquidity. 

In the third and fourth quarters of 2017, we took actions we believe will better align our activities and assets with 
current  and  anticipated  market  demand.  These  actions  included  a  workforce  reduction  and  other  measures  to  reduce 
overhead  costs,  which  resulted  in  cash  severance  costs  and  certain  non-cash  stock-based  compensation  charges;  our 
decision to close certain of our natural gas fueling stations by the end of 2017, which resulted in an impairment of these 
station assets and certain other cash and non-cash charges; our determination that the assets of CEC, our former subsidiary, 
were impaired, which resulted in a non-cash charge; and our contribution of CEC to a newly formed joint venture in the 
CEC  Combination.  These  actions  affected  our  performance  in  2017  as  a  result  of  the  cash  expenses  and  non-cash 
impairment and other charges, which could be repeated if we decide to implement similar measures in the future but may 
otherwise limit the comparability of our 2017 results. In addition, these actions will affect our future performance and 
financial condition. For instance, our fueling station closures and the CEC Combination have decreased our aggregate 
revenue  and  cost  levels,  and  we  expect  these  lower  levels  to  continue. In  addition,  our workforce reduction  and other 
measures to reduce overhead costs have contributed to decreased expenses, particularly selling, general and administrative 
expenses, and we expect these lower expense levels will also continue. These actions also led us to record asset impairment 
and other cash and non-cash charges in 2017, and we may determine to record this type of asset or goodwill impairment 
in future periods due to similar or other events or factors. For example, a sustained decline in our stock price and the 
resulting  decline  of  our  market  capitalization  or  periods  of  general  volatility  in  our  market  capitalization,  as  we  have 
experienced in recent periods, could cause our goodwill to become impaired, which could result in material charges and 
adversely affect our results of operations. 

See “Results of Operations” below for more information about our performance in 2018 and 2019. 

Volume. The amount of RNG, CNG and LNG we delivered increased by 9.7% from 2018 to 2019. 

In particular, the amount of RNG we sell for vehicle fuel, which is delivered in the form of CNG or LNG and is 
distributed under the brand name Redeem, has experienced rapid growth in recent years, increasing by 30.2% from 2018 
to 2019. This demand for Redeem is attributable to the dramatic reduction in the amount of climate-harming greenhouse 
gas that can be achieved through the use of Redeem RNG and pressure from politicians, regulators, non-governmental 
organizations and the investment community directed at companies to reduce their contributions to climate change. To the 
extent  demand  for  RNG  continues  to  increase,  we  expect  our  expanded  supply  agreement  with  BP,  discussed  under 
“2018-2020 Developments” above, could increase our volume-related revenue due to increased volumes of RNG vehicle 
fuel sold and increased generation of RINs and LCFS Credits. In addition, such an increase in RNG demand could also 
result in more robust competition for supplies of RNG, including from other vehicle fuel providers, gas utilities (which 
may have distinct advantages in accessing RNG supply, including potential use of ratepayer funds to fund RNG purchases 
if approved by a utility’s regulatory commission) and other users and providers. We may invest in production projects to 
help ensure that we have adequate supply of RNG. 

RINs and LCFS Credits. When we sell RNG and conventional natural gas for use as a vehicle fuel, we are eligible to 

generate RINs and LCFS Credits, which we then seek to sell to third parties. 

The markets for RINs and LCFS Credits have been volatile and unpredictable in recent periods, and the prices for 
these credits have been subject to significant fluctuations. For example, in 2019 market prices for RINs were as high as 
approximately  $1.90  and  as  low  as  approximately  $0.50.  Additionally,  the  value  of  RINs  and  LCFS  Credits,  and 
consequently the revenue levels we may receive from our sale of these credits, may be adversely affected by changes to 
the federal and state programs under which these credits are generated and sold. Further, our ability to generate revenue 
from sales of these credits depends on our strict compliance with these federal and state programs, which are complex and 
can involve a significant degree of judgment. If the agencies that administer and enforce these programs disagree with our 
judgments,  otherwise  determine  we  are  not  in  compliance,  conduct  reviews  of  our  activities  or  make  changes  to  the 
programs, then our ability to generate or sell these credits could be temporarily restricted pending completion of reviews 

39 

or as a penalty, permanently limited or lost entirely, and we could be subject to fines or other sanctions. Any of these 
outcomes could force us to purchase credits in the open market to cover any credits we have contracted to sell, retire credits 
we may have generated but not yet sold, reduce or eliminate a significant revenue stream or incur substantial additional 
and unplanned expenses. 

In addition, we recognized no revenue from sales of LCFS Credits during the third and fourth quarters of 2017 because 
CARB had restricted our ability to sell and transfer LCFS Credits pending completion of an administrative review. We 
were, however, required to settle preexisting contractual obligations to transfer LCFS Credits to third parties by making 
cash payments totaling $7.0 million, the equivalent value of the LCFS Credits we would have otherwise transferred to 
satisfy our obligations. In November 2017, CARB invalidated certain LCFS Credits we had generated in prior periods and 
released the restriction on our ability to sell and transfer LCFS Credits. 

Risk Management Activities 

From time to time, we enter into natural gas fuel sales contracts that require us to sell CNG or LNG to our customers 
at a fixed price. These contracts expose us to the risk that the price of natural gas may increase above the natural gas cost 
component included in the price at which we are committed to sell the natural gas to our customers. 

In an effort to mitigate the volatility of our earnings related to any futures contracts and to reduce our risk related to 
our  fixed  price  sales  contracts,  we  operate  under  a  natural  gas  hedging  policy  pursuant  to  which  we  purchase  futures 
contracts to hedge our exposure to variability in expected future cash flows related to a particular fixed price contract or 
bid. Subject to the conditions set forth in the policy, we purchase futures contracts in quantities reasonably expected to 
effectively hedge our exposure to cash flow variability related to fixed price sales contracts entered into after the date of 
the policy. Unless otherwise agreed in advance by our board of directors and the derivatives committee thereof, we will 
conduct our futures contract activities and enter into fixed price sales contracts only in accordance with our natural gas 
hedging policy. 

Due to the restrictions of our hedging policy, we expect to offer few fixed price sales contracts to our customers. If 
we do offer a fixed price sales contract, we anticipate including a price component that would cover our estimated cash 
requirements over the duration of the underlying futures contracts. The amount of this price component will vary based on 
the anticipated volume and the natural gas price component to be covered under the fixed price sales contract. 

In October 2018, in support of the our Zero Now truck financing program, we executed two commodity swap contracts 
with Total Gas & Power North America, an affiliate of TOTAL and THUSA, for a total of five million diesel gallons 
annually from April 1, 2019 to June 30, 2024. These commodity swap contracts are intended to manage risks related to 
the diesel-to-natural gas price spread in connection with the natural gas fuel supply commitments we have made and expect 
to make in our current and anticipated fueling agreements with fleet operators that participate in the Zero Now program. 

Critical Accounting Policies 

This discussion is based upon our consolidated financial statements included in this report, which have been prepared 
in  accordance  with  accounting  principles  generally  accepted  in  the  United  States  of  America  (“US GAAP”).  The 
preparation of consolidated financial statements in conformity with US GAAP requires management to make estimates 
and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual 
results could differ from those estimates and may result in material effects on our operating results and financial position. 

We believe the critical accounting policies discussed below affect our more significant estimates made in preparing 
our  consolidated  financial  statements.  See  Notes 1  and  2  for  more  information  about  these  and  our  other  significant 
accounting policies. 

Revenue Recognition 

In general, revenue is recognized when control of the promised goods or services is transferred to our customers, in 
an  amount  that  reflects  the  consideration to  which  we  expect  to  be  entitled  in exchange  for  the goods  or services. To 

40 

achieve  that  core  principle,  a  five-step  approach  is  applied:  (1) identify  the  contract  with  a  customer,  (2) identify  the 
performance  obligations  in  the  contract,  (3) determine  the  transaction  price,  (4) allocate  the  transaction  price  to  the 
performance  obligations  in  the  contract,  and  (5) recognize  revenue  allocated  to  each  performance  obligation  when  we 
satisfy the performance obligation. A performance obligation is a promise in a contract to transfer a distinct good or service 
to the customer, and is the unit of account for revenue recognition. 

We recognize revenue on various products and services. 

Our volume-related revenue primarily consists of sales of RNG, CNG and LNG fuel, O&M services, and RINs and 

LCFS Credits in addition to changes in fair value of our derivative instruments. 

Fuel  and  O&M  services  are  sold  pursuant  to  contractual  commitments  over  defined  goods-and-service  delivery 
periods. These contracts typically include a stand-ready obligation to supply natural gas and/or provide O&M services 
daily based on a committed and agreed upon routine maintenance schedule or when and if called upon by the customer. 

We recognize fuel and O&M services revenue in the amount to which we have the right to invoice. We have a right 
to consideration based on the amount of gasoline gallon equivalents of natural gas dispensed by the customer and current 
pricing conditions, which are typically billed to the customer on a monthly basis. Since payment terms are less than a year, 
we  have  elected  the  practical  expedient  which  allows  us  to  not  assess  whether  a  customer  contract  has  a  significant 
financing component. 

We  sell  RIN  Credits  and  LCFS  Credits  to  third  parties  that  need  the  credits  to  comply  with  federal  and  state 
requirements. Revenue is recognized on these credits when there is an agreement in place to monetize the credits at a 
determinable price. 

Changes in fair value of derivative instruments relates to our commodity swap and customer fueling contracts. The 
contracts are measured at fair value with changes in the fair value recorded in our consolidated statements of operations 
in  the  period  incurred.  The  amounts  are  classified  as  revenue  because  our  commodity  swap  contracts  are  used  to 
economically  offset  the  risk  associated  with  the  diesel-to-natural  gas  price  spread  resulting  from  anticipated  customer 
fueling contracts under our Zero Now truck financing program. 

Station construction contracts are generally short-term, except for certain larger and more complex stations, which 
can take up to 24 months to complete. For most of our station construction contracts, the customer contracts with us to 
provide a significant service of integrating a complex set of tasks and components into a single station. Hence, the entire 
contract is accounted for as one performance obligation. 

We  recognize  revenue  over  time  as  we  perform  under  our  station  construction  contracts  because  of  the  continual 
transfer of control of the goods to the customer, who typically controls the work in process. Revenue is recognized based 
on the extent of progress towards completion of the performance obligation and is recorded proportionally as costs are 
incurred. Costs to fulfill our obligations under these contracts typically include labor, materials and subcontractors’ costs, 
other direct costs and an allocation of indirect costs. 

Refinements of estimates to account for changing conditions and new developments are continuous and characteristic 
of the process. Many factors that can affect contract profitability may change during the performance period of the contract, 
including  differing  site  conditions,  the  availability  of  skilled  contract  labor,  the  performance  of  major  suppliers  and 
subcontractors, and unexpected changes in material costs. Because a significant change in one or more of these estimates 
could affect the profitability of these contracts, the contract price and cost estimates are reviewed periodically as work 
progresses and adjustments proportionate to the cost-to-cost measure of progress are reflected in contract revenues in the 
reporting  period  when  such  estimates  are  revised  as  discussed  above.  Provisions  for  estimated  losses  on  uncompleted 
contracts are recorded in the period in which the losses become known. 

In certain contracts with our customers, we agree to provide multiple goods or services, including construction of and 
sale of a station, O&M services, and sale of fuel to the customer. These contracts have multiple performance obligations 
because the promise to transfer each separate good or service is separately identifiable and is distinct. This evaluation 

41 

requires significant judgment and the decision to combine a group of contracts or separate the combined or single contract 
into multiple performance obligations could change the amount of revenue recognized in one or more periods. 

We allocate the contract price to each performance obligation using best estimates of the standalone selling price of 
each distinct good or service in the contract. The primary method used to estimate the standalone selling price for fuel and 
O&M services is observable standalone sales, and the primary method used to estimate the standalone selling price for 
station  construction  sales  is  the  expected  cost  plus  a  margin  approach  because  we  sell  customized  customer-specific 
solutions.  Under  this  approach,  we  forecast  expected  costs  of  satisfying  a  performance  obligation  and  then  add  an 
appropriate margin for the good or service. 

AFTC is considered variable consideration because it can either increase or decrease the transaction price based on 
volumes  of  vehicle  fuel  sold.  Additionally,  AFTC  is  not  recognized  as  revenue  until  it  is  authorized  through  federal 
legislation, which also provides a determinable price. We recognize revenue in the period the credit is authorized through 
federal legislation. 

We collect and remit taxes assessed by various governmental authorities that are imposed on and concurrent with 
revenue-producing transactions between us and our customers. These taxes may include, among others, fuel, sales and 
value-added taxes. We report the collection of these taxes on a net basis and they are excluded from revenue and cost of 
goods sold. 

Impairment of Goodwill and Long-Lived Assets 

Goodwill represents the excess of costs incurred over the fair value of the net assets of acquired businesses. We assess 
our goodwill using either a qualitative or quantitative approach to determine whether it is more likely than not that the fair 
value of our reporting unit is less than its carrying value. We are required to use judgment when applying the goodwill 
impairment test, including, among other considerations, the identification of reporting unit(s), the assessment of qualitative 
factors, and the estimation of fair value of a reporting unit in the quantitative approach. We determined that we are a single 
reporting unit for the purpose of goodwill impairment tests. We perform the impairment test annually on October 1, or 
more frequently if facts or circumstances change that would indicate that the carrying amount may be impaired. 

The qualitative goodwill assessment includes the potential effect on a reporting unit’s fair value of certain events and 
circumstances, including its enterprise value, macroeconomic conditions, industry and market considerations, cost factors, 
and other relevant entity-specific events. If it is determined, based upon the qualitative assessment, that it is more likely 
than not that the reporting unit’s fair value is less than its carrying amount, then a quantitative impairment test is performed. 
Alternatively,  we  may  bypass  the  qualitative  assessment  for  a  reporting  unit  and  directly  perform  the  quantitative 
assessment. 

The quantitative assessment estimates the reporting unit's fair value based on its market capitalization plus an assumed 
control premium as evidence of fair value. The estimates used to determine the fair value of the reporting unit may change 
based  on  results  of  operations,  macroeconomic  conditions  stock  price  fluctuations  or  other  factors.  Changes  in  these 
estimates could materially affect our assessment of the fair value and goodwill impairment for the reporting unit. 

For our most recent goodwill impairment test, which was our annual test performed on October 1, 2019, we performed 
a quantitative impairment assessment for the reporting unit as described above. In this test, the fair value of the reporting 
unit exceeded its carrying value by 9%. 

We  evaluated  the  volatility  in  the  market  price  of  our  common  stock  subsequent  to  our  annual  test  date  through 
December 31, 2019, and considered whether there were any other events or circumstances that would more likely than not 
reduce the fair value of our reporting unit below its carrying value on a sustained basis, and concluded it was not more 
likely than not that the fair value of our reporting unit decreased below its carrying value, on a sustained basis. As a result, 
an interim impairment test was not considered necessary during the three months ended December 31, 2019. 

If a decline in the market price of our common stock and our market capitalization were sustained, or if other events 
or circumstances change that would more likely than not reduce the fair value of our reporting unit below its carrying 

42 

value, on a sustained basis, then we may perform impairment tests more frequently and it is possible that our goodwill 
could become impaired, which could result in a material charge and adversely affect our results of operations. 

We review the carrying value of our long-lived assets, including property and equipment and intangible assets with 
finite useful lives, for impairment whenever events or changes in circumstances indicate that the carrying value of an asset 
or asset group may not be recoverable. Events that could result in an impairment review include, among others, a significant 
decrease  in  the  operating  performance  of  a  long-lived  asset  or  asset  group  or  the  decision  to  close  a  fueling  station. 
Impairment testing involves a comparison of the sum of the undiscounted future cash flows of the asset or asset group to 
its carrying amount. If the sum of the undiscounted future cash flows exceeds the carrying amount, then no impairment 
exists. If the carrying amount exceeds the sum of the undiscounted future cash flows, then a second step is performed to 
determine the amount of impairment, if any, to be recognized. An impairment loss is recognized to the extent that the 
carrying amount of the asset or asset group exceeds its fair value. The fair value of the asset or asset group is based on 
estimated discounted future cash flows of the asset or asset group using a discount rate commensurate with the related risk. 
The estimate of future cash flows requires management to make assumptions and to apply judgment, including forecasting 
future sales and expenses and estimating useful lives of the assets. These estimates can be affected by a number of factors, 
including, among others, future results, demand and economic conditions, many of which can be difficult to predict. 

Income Taxes 

Income  taxes  are  computed  using  the  asset  and  liability  method.  Under  this  method,  deferred  income  taxes  are 
recognized  by  applying  enacted  statutory  tax  rates  applicable  to  future years  to  differences  between  the  tax  bases  and 
financial carrying amounts of existing assets and liabilities. The impact on deferred taxes of changes in tax rates and laws, 
if  any,  are  applied  to  the years  during  which  temporary  differences  are  expected  to  be  settled  and  are  reflected  in  the 
consolidated  financial  statements  in  the  period  of  enactment.  Valuation  allowances  are  established  when  management 
determines it is more likely than not that deferred tax assets will not be realized. When evaluating the need for a valuation 
analysis,  we use  estimates  involving  a high  degree of judgment  including  projected  future US GAAP  income  and  the 
amounts and estimated timing of the reversal of any deferred tax assets and liabilities. 

We have a recognition threshold and a measurement attribute for the financial statement recognition and measurement 
of tax positions taken or expected to be taken in a tax return. For those benefits to be recognized, a tax position must be 
more likely than not to be sustained upon examination by taxing authorities based on the technical merits of the position. 
The amount recognized is measured as the largest amount of benefit that has a greater than 50% likelihood of being realized 
upon  ultimate  settlement.  We  recognize  potential  accrued  interest  and  penalties  related  to  unrecognized  tax  benefit  in 
income tax expense. 

We operate within multiple domestic and foreign taxing jurisdictions and are subject to audit in these jurisdictions. 
These audits can involve complex issues, which may require an extended period of time to resolve. Although we believe 
that adequate consideration has been given to these issues, it is possible that the ultimate resolution of these issues could 
be significantly different than originally estimated. 

Fair Value Measurements 

We have established a framework that follows the authoritative guidance for fair value measurements with respect to 
assets and liabilities that are measured at fair value on a recurring basis and non-recurring basis. Under the framework, 
fair value is defined as the exit price, or the amount that would be received to sell an asset or paid to transfer a liability in 
an orderly transaction between market participants, as of the measurement date. The framework also establishes a hierarchy 
for inputs used in measuring fair value that maximizes the use of observable inputs and minimizes the use of unobservable 
inputs  by  requiring  that  the  most  observable  inputs  be  used  when  available.  Observable  inputs  are  inputs  market 
participants would use in valuing the asset or liability and are developed based on market data obtained from sources 
independent  of  our  Company.  Unobservable  inputs  are  inputs  that  reflect  our  assumptions  about  the  factors  market 
participants would use in valuing the asset or liability and are developed based upon the best information available in the 
circumstances. The hierarchy consists of the following three levels: Level 1 inputs are quoted prices (unadjusted) in active 
markets  for  identical  assets  or  liabilities;  Level 2  inputs  include  quoted  prices  for  similar  assets  or  liabilities  in  active 
markets, quoted prices for identical or similar assets or liabilities in markets that are not active, and inputs (other than 

43 

quoted prices) that are observable for the asset or liability, either directly or indirectly; Level 3 inputs are unobservable 
inputs for the asset or liability. Categorization within the valuation hierarchy is based upon the lowest level of input that 
is significant to the fair value measurement. 

Our significant uses of fair value measurements include the valuation of assets disposed and liabilities extinguished 
related to business divestitures and impairment of long-lived assets, as well as the valuation of commodity swaps and 
customer contracts, and warrants, all of which requires significant judgment. 

Recently Adopted Accounting Changes and Recently Issued and Adopted Accounting Standards. 

See Note 1 for information about recently adopted accounting changes and recently issued accounting standards. 

Results of Operations 

The discussions below compare our results of operations in 2019 and 2018. Historical results are not indicative of the 

results to be expected in the current period or any future period. 

2019 Compared to 2018 

The table below presents, for each period, each line item of our statement of operations data as a percentage of our 
total revenue for the period. The narrative that follows provides a comparative discussion of certain of these line items 
between periods. 

Statement of Operations Data: 
Revenue: 

Product revenue 
Service revenue 
Total revenue 
Operating expenses: 

Cost of sales (exclusive of depreciation and amortization shown separately below): 

Product cost of sales 
Service cost of sales 

  Change in fair value of derivative warrants 
  Selling, general and administrative 

Depreciation and amortization 
Total operating expenses 
Operating income (loss) 

Interest expense 
Interest income 
Other income (expense), net 
Loss from equity method investments 
Gain from sale of certain assets of subsidiary 
Loss from formation of equity method investment 

Income (loss) before income taxes 

Income tax benefit (expense) 

Net income (loss) 

Loss from noncontrolling interest 

Net income (loss) attributable to Clean Energy Fuels Corp. 

  Year Ended December 31,  

2018 

2019 

 88.9 %   
 11.1   
 100.0   

 86.7 %
 13.3  
 100.0  

 56.1   
 5.3   
 0.2   
 22.3   
 15.0   
 98.9   
 1.1   
 (4.6)  
 0.8   
 (0.2)  
 (0.8)  
 1.4   
 (0.3)  
 (2.6)  
 (0.1)  
 (2.7)  
 1.6   
 (1.1)%   

 53.9  
 7.7  
 (0.3) 
 21.3  
 14.4  
 97.0  
 2.9  
 (2.2) 
 0.7  
 0.6  
 —  
 2.2  
 —  
 4.2  
 (0.2) 
 4.0  
 2.1  
 6.1 %

Revenue.     Revenue  decreased  by  $2.4  million to  $344.1  million for  2019,  from  $346.4  million  for  2018.  This 
decrease was primarily due to the unfavorable change in fair value of our commodity swap and customer contracts entered 
into in connection with our Zero Now truck financing program, lower station construction sales and lower revenue from 

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the sale of used trucks, partially offset by an increase in AFTC revenue, as well as an increase in revenue from higher 
volumes.  

Volume-related  revenue,  excluding  the  impact  of  the  change  in  fair  value  of  our  commodity  swap  and  customer 
contracts  entered  into  in  connection  with  our  Zero  Now  truck  financing  program,  increased  by  $3.8  million  between 
periods, attributable to an increase in gallons of CNG and LNG delivered, and increased revenue from RINs and LCFS 
Credits. The impact to volume-related revenue as a result of the change in fair value of our commodity swap and customer 
contracts entered into in connection with our Zero Now truck financing program was $(16.9) million, as we recognized an 
unrealized gain of $10.3 million in 2018 compared to an unrealized loss of $(6.6) million in 2019 (see Note 8 for more 
information). 

Our effective price per gallon charged decreased by $0.06 per gallon to $0.70 per gallon in 2019 compared to $0.76 
in 2018, excluding the effect of the change in fair value of derivative instruments discussed above. Our effective price per 
gallon  is  defined  as  revenue  generated  from  selling  RNG,  CNG,  LNG  and  any  related  RINs  and  LCFS  Credits  and 
providing O&M services to our vehicle fleet customers at stations we do not own and for which we receive a per-gallon 
or fixed fee, all divided by the total GGEs delivered less GGEs delivered by non-consolidated entities, such as entities that 
are accounted for under the equity method. 

Station construction sales decreased by $2.4 million between periods, due to fewer construction projects. 

AFTC revenue increased by $20.4 million between periods due to our recognition in 2019 of AFTC revenue for the 

vehicle fuel we sold in 2018 and 2019. In 2018, we recognized AFTC revenue for the vehicle fuel we sold in 2017. 

Cost of sales.    Cost of sales decreased by $0.8 million to $212.1 million in 2019, from $212.9 million in 2018. This 
decrease was primarily due to a $1.6 million decrease in station construction costs due to fewer construction projects, and 
a $7.6 million decrease in costs to purchase used heavy-duty trucks that we sold to our customers. These decreases were 
partially offset by an $8.8 million increase in gas commodity costs due to the increase in gallons delivered during 2019 
partially offset by a lower average cost per gallon in 2019 compared to 2018. 

Our effective cost per gallon decreased by $0.02 per gallon to $0.47 per gallon in 2019 compared to $0.49 per gallon 
in 2018. Our effective cost per gallon is defined as the total costs associated with delivering natural gas, including gas 
commodity costs, transportation fees, liquefaction charges, and other site operating costs, plus the total cost of providing 
O&M services at stations that we do not own and for which we receive a per-gallon or fixed fee, including direct technician 
labor, indirect supervisor and management labor, repair parts and other direct maintenance costs, all divided by the total 
GGEs delivered less GGEs delivered by non-consolidated entities, such as entities that are accounted for under the equity 
method. The decrease in our effective cost per gallon was due to decreases in natural gas prices and transportation costs. 

Change in fair value of derivative warrants. Change in fair value of derivative warrants, all of which were issued by 
our subsidiary, NG Advantage, changed from an expense of $0.5 million in 2018, to income of $1.0 million in 2019 due 
to a change in the estimated fair value. 

Selling, general and administrative.    Selling, general and administrative expenses decreased by $3.8 million to $73.4 

million for 2019, from $77.2 million for 2018. This decrease was primarily driven by continued cost reduction efforts. 

Depreciation and amortization.    Depreciation and amortization decreased by $2.2 million to $49.6 million in 2019, 

from $51.9 million in 2018, primarily due to a lower amount of depreciable assets. 

Interest expense.    Interest expense decreased by $8.4 million to $7.6 million in 2019, from $15.9 million in 2018. 

This decrease was primarily due to a reduction of outstanding indebtedness between periods. 

Other income (expense), net.    Other income (expense), net, changed from an expense of $0.6 million in 2018 to 

income of $2.0 million in 2019, primarily due to gains recorded from disposal of certain assets. 

45 

Loss  from  equity  method  investments.  Loss  from  equity  method  investments  decreased  by  $2.6  million  between 

periods, which was primarily attributable to improved operating results from SAFE&CEC S.r.l. 

Gain from sale of certain assets of subsidiary. In 2019, we recorded a gain of $7.5 million as a result of the satisfaction 
of certain performance criteria related to the assets sold in the BP Transaction and an amendment to the related Asset 
Purchase Agreement. In 2018, we recorded a gain of $4.8 million as a result of the satisfaction of certain performance 
criteria related to the assets sold in the BP Transaction. See Note 4 for more information. 

Loss from formation of equity method investment. In 2018, we recorded a loss of $1.2 million related to costs incurred 

in satisfaction of commitments made in connection with the CEC Combination. There was no comparable loss in 2019. 

Income tax expense.    Income tax expense increased between periods, primarily due an increase in deferred taxes 

associated with goodwill which were partially offset by a reduction in the Company’s expected state tax expense. 

Loss attributable to noncontrolling interest.    In 2019, we recorded a $7.2 million loss for the noncontrolling interest 
in the net loss of NG Advantage, compared to a $5.4 million loss for 2018. The noncontrolling interest in NG Advantage 
represents a 37.0% and 35.4% minority interest that was held by third parties during 2018 and 2019, respectively. 

Seasonality and Inflation 

To some extent, we experience seasonality in our results of operations. Some of our customers tend to consume more 
natural  gas  vehicle  fuel  in  the  summer months,  when  buses  and  other  fleet  vehicles  use  more  fuel  to  power  their  air 
conditioning  systems.  Natural  gas  commodity  prices  tend to  be higher  in  the  fall  and winter months,  due  to  increased 
overall demand for natural gas for heating during these periods. 

Historically, inflation has not significantly affected our operating results; however, costs for construction, repairs, 
maintenance, electricity and insurance are all subject to inflationary pressures, which could affect our ability to maintain 
our  stations  adequately,  build  new  stations,  expand  our  existing  facilities  or  pursue  additional  facilities,  and  could 
materially impact our operating costs. 

Liquidity and Capital Resources 

Liquidity 

Liquidity  is  the  ability  to  meet  present  and  future  financial  obligations  through  operating  cash  flows,  the  sale  or 
maturity of investments or the acquisition of additional funds through capital management. Our financial position and 
liquidity are, and will continue to be, influenced by a variety of factors, including the level of our outstanding indebtedness 
and the principal and interest we are obligated to pay on our indebtedness, which could be influenced by the potential 
discontinuance of LIBOR for certain of our debt instruments that tie interest rates to this metric; the amount and timing of 
any  additional  debt  or  equity  financing  we  may  pursue;  determinations  to  buy-out  future  commitments;  our  capital 
expenditure requirements; any merger, divestiture or acquisition activity; and our ability to generate cash flows from our 
operations. We expect cash provided by our operating activities to fluctuate as a result of a number of factors, including 
our operating results and the factors that affect these results, including the amount and timing of our natural gas vehicle 
fuel sales, station construction sales, sales of RINs and LCFS Credits and recognition of government credits, grants and 
incentives, if any; fluctuations in commodity, station construction and labor costs and natural gas, RIN and LCFS Credit 
prices; variations in the fair value of certain of our derivative instruments that are recorded in revenue; and the amount and 
timing of our billing, collections and liability payments, as discussed under “Key Trends-Our Performance” above. 

Cash Flows 

Operating Activities. Cash provided by operating activities was $12.3 million in 2019, compared to $38.0 million in 
2018. The  decrease  in  cash provided by  operating  activities  was primarily  attributable  to  the AFTC revenue  collected 
in 2018 and changes in working capital resulting from the timing of receipts and payments of cash. 

46 

Investing Activities. Cash used in investing activities was $1.5 million in 2019, compared to cash provided by investing 
activities of $54.4 million in 2018. The decrease in cash provided by investing activities was attributable to a decrease in 
maturities  and  sales  of  short-term  investments  in  2019,  partially  offset  by  an  increase  in  proceeds  from  property  and 
equipment disposals and an increase in earn-out proceeds received in connection with the BP Transaction. The decrease 
in cash provided by investing activities in 2019 was also attributable to an increase in purchases of property and equipment 
between periods.  

Financing  Activities.  Cash  provided  by  financing  activities  was  $7.7  million  in  2019,  compared  to  cash  used  in 
financing activities of $95.2 million in 2018. Cash provided by financing activities in 2019 was primarily attributable to 
proceeds  from  debt  instruments  and  finance  lease  obligations,  partially  offset  by  repayments  of  debt  instruments  and 
finance  lease  obligations.  Cash  used  in  financing  activities  in  2018  consisted  primarily  of  our  repayment  of  debt 
instruments and finance lease obligations, partially offset by cash proceeds, net of fees, from our issuance of stock in the 
Total Private Placement. 

Capital Expenditures, Indebtedness and Other Uses of Cash 

We require cash to fund our capital expenditures, operating expenses and working capital and other requirements, 
including costs associated with fuel sales; outlays for the design and construction of new fueling stations; additions or 
other  modifications  to  existing  fueling  stations;  debt  repayments  and  repurchases;  investments  in  RNG  production; 
maintenance of LNG production facilities; supporting our operations, including maintenance and improvements of our 
infrastructure; supporting our sales and marketing activities, including support of legislative and regulatory initiatives; 
financing natural gas vehicles for our customers; any investments in other entities; any mergers or acquisitions; pursuing 
market expansion as opportunities arise, including geographically and to new customer markets; and to fund other activities 
or pursuits and for other general corporate purposes. 

Our business plan calls for approximately $18.0 million in capital expenditures in 2020. These capital expenditures 
primarily relate to the construction of CNG fueling stations, IT software and equipment and LNG plant maintenance costs 
and we expect to fund these expenditures primarily through cash on hand and cash generated from operations. 

In addition, NG Advantage may spend as much as $12.8 million to purchase additional equipment in support of its 

operations and customer contracts or buy-out future commitments, among other things. 

We  had  total  indebtedness,  consisting of our debt  and  finance  leases, of  approximately  $92.4  million  in  principal 
amount as of December 31, 2019, of which approximately $56.7 million, $6.9 million, $7.0 million, $11.9 million, $9.6 
million and $0.3 million is expected to become due in 2020, 2021, 2022, 2023, 2024 and thereafter, respectively. Based 
on outstanding debt balances and applicable interest rates at December 31, 2019, we expect our total interest payment 
obligations  relating  to  our  indebtedness  to  be  approximately  $4.8  million  for  the year  ending  December 31,  2020.  In 
addition, in connection with implementing our Zero Now truck financing program, we have entered into agreements that 
permit us to incur a material amount of additional debt on a delayed draw basis and obligate us to make interest and other 
fee payments that vary in amount based on the outstanding principal of this debt and certain other factors; none of this 
potential debt nor the related interest and other payments are included in the foregoing estimates other than the principal 
amount of $4.4 million drawn as of December 31, 2019. Although we believe we have sufficient liquidity and capital 
resources to repay our debt coming due in the next 12 months, we may elect to pursue alternatives, such as refinancing or 
debt or equity offerings, to increase our cash management flexibility. As of December 31, 2019, we have $50.0 million of 
outstanding 7.5% convertible notes outstanding, which mature in June 2020. We are permitted to issue up to 14.0 million 
shares of common stock to repay a portion of the principal amount of these outstanding convertible notes. 

We  intend  to  make  payments  under  our  various  debt  instruments  when  due  and  pursue  opportunities  for  earlier 

repayment and/or refinancing if and when these opportunities arise. 

Sources of Cash 

Historically,  our  principal  sources  of  liquidity  have  consisted  of  cash  on  hand,  cash  provided  by  our  operations, 
including, if available, AFTC and other government credits, grants and incentives, cash provided by financing activities, 

47 

and sales of assets. As of December 31, 2019, we had total cash and cash equivalents and short-term investments of $106.1 
million, compared to $95.5 million as of December 31, 2018. 

We expect cash provided by our operating activities to fluctuate depending on our operating results, which can be 
affected by the factors described above, as well as the other factors described in this MD&A and “Item 1A. Risk Factors” 
of this report. 

In October 2018 and January 2019, we entered into agreements to implement our Zero Now truck financing program, 
which  permit  us  to  incur  up  to  an  additional  $100.0 million  of  indebtedness  through  the  beginning  of  January 2022, 
obligate us to make certain interest and other fee payments in connection with this debt and THUSA’s related guaranty 
(which payments will vary in amount but will be owed by us regardless of the revenue we may receive from the program), 
and  subject  us  to  potential  additional  payments  in  connection  with  related  commodity  swap  arrangements.  We  are 
permitted to use any proceeds we receive under these agreements solely to fund the incremental cost of trucks purchased 
or financed by operators that participate in the Zero Now program. See “Recent Developments” and “Key Trends” above 
and Note 13 of this report for more information. 

We believe our cash and cash equivalents and short-term investments and anticipated cash provided by our operating 
and financing activities will satisfy our business requirements for at least the 12 months following the date of this report. 
Subsequent  to  that  period,  we  may  need  to  raise  additional  capital  to  fund  any  planned  or  unanticipated  capital 
expenditures, investments, debt repayments or other expenses that we cannot fund through cash on-hand, cash provided 
by our operations or other sources. Moreover, we may use our cash resources faster than we predict due to unexpected 
expenditures or higher-than-expected expenses, in which case we may need to seek capital from alternative sources sooner 
than we anticipate. 

The timing and necessity of any future capital raise would depend on various factors, including our rate and volume 
of, and prices for, natural gas sales and other volume-related activity, new station construction, debt repayments (either 
before or at maturity) and any potential mergers, acquisitions, investments, divestitures or other strategic relationships we 
may  pursue,  as  well  as  the  other  factors  that  affect  our  revenue  and  expense  levels  as  described  in  this  MD&A  and 
elsewhere in this report. 

We may seek to raise additional capital through one or more sources, including, among others, selling assets, obtaining 
new  or  restructuring  existing  debt,  obtaining  equity  capital,  or  any  combination  of  these  or  other  potential  sources  of 
capital. We may not be able to raise capital when needed, on terms that are favorable to us or our stockholders or at all. 
Any inability to raise necessary capital may impair our ability to develop and maintain natural gas fueling infrastructure, 
invest in strategic transactions or acquisitions or repay our outstanding indebtedness and may reduce our ability to support 
and build our business and generate sustained or increased revenue. 

Contractual Obligations 

The table below represents the scheduled maturities of our contractual obligations as of December 31, 2019. This 
table excludes certain potential contractual obligations because they may involve future cash payments that are considered 
uncertain  and  cannot  be  estimated  because  they  vary  based  upon  future  conditions;  however,  the  exclusion  of  these 

48 

obligations should not be construed as an implication that they are immaterial, as they could significantly affect our short- 
and long-term liquidity and capital resource needs depending on a variety of future events, facts and conditions. 

Payments Due by Period 

Contractual Obligations: (in thousands) 
Long-term debt (a) 
Finance lease obligations (b) 
Operating lease commitments (c) 
Long-term take-or-pay contracts (d) 
Long-term supply contract (e) 
Construction contracts (f) 

Total 

  $ 

      1 - 3 years        3 - 5 years       

Total 
 99,807   $ 
 3,808  
 46,502  
 9,649  
 28,736  
 5,092  

Less than 
1 year 
 60,727   $ 
 767  
 5,484  
 5,769  
 5,076  
 5,092  
 82,915   $ 

  More than 

 17,324   $ 

 21,756   $ 

 1,239  
 8,394  
 2,655  
 23,660  
 —  
 53,272   $ 

 1,488  
 7,416  
 1,225  
 —  
 —  
 31,885   $ 

5 years 

 — 
 314 
 25,208 
 — 
 — 
 — 
 25,522 

  $   193,594   $ 

(a)  Consists of long-term debt to finance acquisitions and equipment purchases, including future interest payments. For our variable-rate debt 

(the SG Facility as defined in Note 13), we have assumed an interest rate of 3.1% (LIBOR plus 1.30%) as of December 31, 2019. 

(b)  Consists of finance lease obligations to finance equipment purchases, including future interest payments. 

(c)  Consists of various space and ground leases for our Boron Plant, office spaces and fueling stations as well as leases for equipment. 

(d)  Represents our estimates for long-term natural gas purchase contracts with a take-or-pay commitment. 

(e)  Represents our estimates for one long-term natural gas supply contract for our subsidiary NG Advantage, which entered into an arrangement 

with BP for the supply, sale and transportation of CNG through March 2022. 

(f)  Consists  of  our  obligations  to  fund various  fueling  station  construction projects,  net of  amounts  funded  through  December 31,  2019  and 

excluding contractual commitments related to station sales contracts. 

Off-Balance Sheet Arrangements 

As of December 31, 2019, we had the following off-balance sheet arrangements that have had, or are reasonably likely 
to have, a material current or future effect on our financial condition, changes in financial condition, revenue or expenses, 
results of operations, liquidity, capital expenditures or capital resources: 

•  Outstanding surety bonds for construction contracts and general corporate purposes totaling $29.9 million; 

•  Two  long-term  natural  gas  purchase  contract  with  a  take-or-pay  commitment,  the  amount  of  which  is  shown 

under “Contractual Obligations” above; 

•  Quarterly fixed price natural gas purchase contracts with take-or-pay commitments, the amount of which is shown 

under “Contractual Obligations” above; 

•  One long-term natural gas sale contract with a fixed supply commitment, the amount of which is shown under 

“Contractual Obligations” above, along with a guaranty agreement; and 

•  One long-term natural gas sale contract with a fixed supply commitment. 

We provide surety bonds primarily for construction contracts in the ordinary course of our business, as a form of 
guarantee. No liability has been recorded in connection with our surety bonds because, based on historical experience and 
available  information,  we  do  not  believe  it  is  probable  that  any  amounts  will  be  required  to  be  paid  under  these 
arrangements for which we will not be reimbursed. 

As  of  December 31,  2019,  we  had  two  long-term  natural  gas  purchase  contracts  with  a  take-or-pay  commitment, 
which require us to purchase minimum volumes of natural gas at index-based prices and expire in December 2020 and 

49 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     
     
 
 
 
  
  
  
 
  
  
 
 
 
 
  
  
  
  
  
 
  
  
  
  
  
 
  
  
  
  
  
 
June 2022,  respectively.  Additionally,  as  of  December 31,  2019,  we  had  quarterly  fixed-price  natural  gas  purchase 
contracts with take-or-pay commitments extending through June 2023. 

NG Advantage has entered into an arrangement with BP for the supply, sale and reservation of a specified volume of 
CNG transportation capacity until March 2022. In connection with the arrangement, on February 28, 2018, we entered 
into a guaranty agreement with NG Advantage and BP in which we guarantee NG Advantage’s payment obligations to 
the customer in the event of a default by NG Advantage under the supply arrangement, in an amount up to $30.0 million 
plus related fees. Our guaranty is in effect until thirty days following our notice to BP of termination. 

In addition, as of December 31, 2019, we had a fixed supply arrangement with UPS for the supply and sale of 170.0 

million GGEs of RNG through March 2026. 

Item 7A.   Quantitative and Qualitative Disclosures about Market Risk. 

In the ordinary course of our business, we are exposed to various market risks, including commodity price risks, risks 

related to foreign currency exchange rates, and risks related to fluctuations in interest rates. 

Commodity Price Risk 

We are subject to market risk with respect to our sales of natural gas, which have historically been subject to volatile 
market conditions. Our exposure to market risk is heightened when we have a fixed-price sales contract with a customer 
that is not covered by a futures contract, or when we are otherwise unable to pass through natural gas price increases to 
customers.  Natural gas prices  and  availability  are  affected  by  many  factors,  including,  among  others,  drilling  activity, 
supply, weather conditions, overall economic conditions and foreign and domestic government regulations. 

Natural gas costs represented $83.3 million, $94.9 million and $94.0 million of our cost of sales in 2017, 2018 and 

2019, respectively. 

In October 2018, in support of our Zero Now truck financing program, we entered into two commodity swap contracts 
with Total Gas & Power North America, an affiliate of TOTAL and THUSA, for a total of five million diesel gallons 
annually from April 1, 2019 to June 30, 2024. These commodity swap contracts are intended to manage risks related to 
the diesel-to-natural gas price spread in connection with the natural gas fuel supply commitments we expect to make in 
our anticipated fueling agreements with fleet operators that participate in the Zero Now truck financing program. 

We have prepared a sensitivity analysis to estimate our exposure to price risk with respect to our commodity swap 
contracts. If the diesel-to-natural gas price spread were to fluctuate by 10% as of December 31, 2019, we would expect a 
corresponding fluctuation in the fair value of our commodity swap contracts of approximately $5.8 million. 

Foreign Currency Exchange Rate Risk 

Before completion of the CEC Combination on December 29, 2017, we had foreign operations that exposed us to 
foreign  currency  exchange  gains  and  losses.  Since  the  functional  currency  of  those  foreign  subsidiaries  is  their  local 
currency, the currency effects of translating the financial statements of the foreign subsidiaries, which operate in local 
currency environments, are included in the accumulated other comprehensive loss component of consolidated equity in 
our consolidated financial statements and do not impact earnings. 

Foreign  currency  transaction  gains  and  losses  not  in  these  subsidiaries’  functional  currency,  however,  do  impact 
earnings, but these amounts were not material for 2018 and 2019. For the years ended December 31, 2018 and 2019, our 
primary exposure to foreign currency exchange rates related to our other Canadian operations that had certain outstanding 
accounts receivable and accounts payable denominated in the U.S. dollar, which were not hedged. 

We  have  prepared  a  sensitivity  analysis  to  estimate  our  exposure  to  market  risk  with  respect  to  our  monetary 
transactions denominated in a foreign currency. If the exchange rates on these assets and liabilities were to fluctuate by 

50 

10% from the rates as of December 31, 2019, we would expect a corresponding fluctuation in the value of the assets and 
liabilities of approximately $0.3 million. 

Interest Rate Risk 

As of December 31, 2019, we had $4.4 million of debt that bears interest at a rate equal to LIBOR plus 1.30% per 
annum. Thus, our interest expense would fluctuate with a change in LIBOR. If LIBOR were to increase or decrease by 1% 
for the year, our annual interest expense would increase or decrease by approximately $44,000. 

The term credit agreement with SG permits the Company to draw loans from time to time through the beginning of 
January 2022. These loans are subject to an interest rate indexed to LIBOR which is expected to be discontinued after 
2021. We intend to monitor the developments with respect to the potential discontinuance of LIBOR after 2021 and work 
with our lenders under the credit agreement, including SG, and any other indebtedness with an interest rate tied to LIBOR 
to minimize the effect of such a discontinuance on our financial condition and results of operations; however, the effect of 
the anticipated discontinuance of LIBOR on us and our debt instruments remains uncertain. If our lenders have increased 
costs due to changes in LIBOR, we may experience potential increases in interest rates on our variable rate debt, which 
could adversely impact our interest expense, results of operations and cash flows. 

Item 8.   Financial Statements and Supplementary Data. 

The following tables set forth our quarterly consolidated statements of operations data for the eight quarters ended 
December 31, 2019. The information for each quarter is unaudited and we have prepared the information on the same basis 
as  the  audited  consolidated  financial  statements  included  in  this  report.  This  information  includes  all  adjustments  that 
management considers necessary for the fair presentation of such data, which include only normal recurring adjustments. 
See Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations of this report for 
descriptions of the effects of any unusual or infrequently occurring items recognized in any of the periods covered by the 
below quarterly data. The quarterly data should be read together with our consolidated financial statements and related 

51 

notes included in this report. The results of operations for any one quarter are not necessarily indicative of results to be 
expected in the current period or any future period. 

Revenue: 

Product revenue 
Service revenue 
Total revenue 
Operating expenses: 

(In thousands, except per share data, Unaudited) 
Three Months Ended  

  March 31,  

2018 

June 30,  
2018 

  September 30,     December 31, 

2018 

2018 

  $   92,251   $  61,120   $ 

    10,152  
   102,403  

 9,347  
    70,467  

 67,441   $ 
 9,879  
 77,320  

 87,027 
 9,202 
 96,229 

Cost of sales (exclusive of depreciation and amortization 
shown separately below): 
Product cost of sales 
Service cost of sales 

Change in fair value of derivative warrants 
Selling, general and administrative 
Depreciation and amortization 
Total operating expenses 
Operating income (loss) 

Interest expense 
Interest income 
Other income (expense), net 
Income (loss) from equity method investments 
Gain from sale of certain assets of subsidiary 
Loss from formation of equity method investment 

Income (loss) before income taxes 

Income tax expense 
Net income (loss) 

Loss attributable to noncontrolling interest 

Net income (loss) attributable to Clean Energy Fuels Corp.  

Basic income (loss) per share 
Diluted income (loss) per share 

    50,199  
 4,597  
 (21) 
 18,858  
    12,801  
    86,434  
    15,969  
 (4,503) 
 575  
 (12) 
 (1,468) 
 —  
 —  
    10,561  
 (88) 
    10,473  
 1,749  

    41,396  
 4,255  
 (71) 
    19,939  
    13,332  
    78,851  
    (8,384) 
    (4,527) 
 489  
 79  
 (729) 
 —  
 —  
   (13,072) 
 (89) 
   (13,161) 
 1,186  

  $   12,222   $ (11,975)  $ 
 (0.07)  $ 
  $ 
 (0.07)  $ 
  $ 

 0.08   $
 0.08   $

 48,063  
 4,743  
 (9) 
 18,405  
 13,363  
 84,565  
 (7,245) 
 (4,096) 
 1,129  
 (193) 
 (542) 
 —  
 (1,163) 
 (12,110) 
 (89) 
 (12,199) 
 1,300  
 (10,899)  $ 
 (0.05)  $ 
 (0.05)  $ 

 54,851 
 4,820 
 644 
 20,005 
 12,354 
 92,674 
 3,555 
 (2,798)
 664 
 (440)
 16 
 4,782 
 — 
 5,779 
 (75)
 5,704 
 1,158 
 6,862 
 0.03 
 0.03 

52 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
  
  
     
        
        
        
   
 
  
  
  
 
  
  
 
  
    
  
    
  
    
  
   
 
  
    
  
    
  
    
  
   
 
  
  
 
  
  
  
  
 
  
  
  
  
 
  
  
  
 
  
  
 
  
  
 
  
  
 
  
  
  
 
  
  
  
  
 
  
  
  
  
 
  
  
  
  
 
  
  
  
  
 
  
  
  
  
 
  
  
 
  
  
  
  
 
  
  
 
  
  
  
  
 
Revenue: 

Product revenue 
Service revenue 
Total revenue 
Operating expenses: 

Cost of sales (exclusive of depreciation and amortization shown 
separately below): 

Product cost of sales 
Service cost of sales 

Change in fair value of derivative warrants 
Selling, general and administrative 
Depreciation and amortization 
Total operating expenses 
Operating income (loss) 

Interest expense 
Interest income 
Other income (expense), net 
Income (loss) from equity method investments 
Gain from sale of certain assets of subsidiary 

Income (loss) before income taxes 

Income tax expense 
Net income (loss) 

Loss attributable to noncontrolling interest 

Net income (loss) attributable to Clean Energy Fuels Corp.  

Basic income (loss) per share 
Diluted income (loss) per share 

Three Months Ended 

  March 31,  
2019 

  June 30,  

  September 30,     December 31, 

2019 

2019 

2019 

   $  68,448   $  59,691   $ 

 9,250  
    77,698  

   12,627  
   72,318  

 62,808   $   107,522 
 12,093 
 11,626  
 119,615 
 74,434  

    54,430  
 4,398  
 1,614  
    18,434  
    12,479  
    91,355  
   (13,657) 
    (1,891) 
 580  
 2,670  
 (467) 
 —  
   (12,765) 
 (60) 
   (12,825) 
 1,879  

   40,121  
    7,489  
 (17) 
   17,933  
   12,605  
   78,131  
    (5,813) 
    (1,842) 
 567  
 93  
 (33) 
 —  
    (7,028) 
 (66) 
    (7,094) 
    1,711  

  $ (10,946)  $  (5,383)  $ 
 (0.05)  $   (0.03)  $ 
  $
 (0.05)  $   (0.03)  $ 
  $

 43,145  
 6,787  
 (10) 
 17,640  
 12,247  
 79,809  
 (5,375) 
 (1,704) 
 560  
 165  
 377  
 —  
 (5,977) 
 (68) 
 (6,045) 
 1,711  
 (4,334)  $ 
 (0.02)  $ 
 (0.02)  $ 

 47,861 
 7,876 
 (2,626)
 19,437 
 12,294 
 84,842 
 34,773 
 (2,137)
 730 
 (938)
 4 
 7,455 
 39,887 
 (664)
 39,223 
 1,861 
 41,084 
 0.20 
 0.20 

53 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
  
  
  
   
        
        
        
   
      
  
  
 
  
  
 
  
    
  
    
  
    
  
 
  
    
  
    
  
    
  
 
  
  
 
  
  
  
 
  
  
  
  
 
  
  
 
  
  
 
  
  
 
  
  
 
  
  
 
  
  
  
  
 
  
  
  
  
 
  
  
  
  
 
  
  
  
  
 
  
  
 
  
  
  
  
 
  
  
 
  
  
  
 
 
 
INDEX TO CONSOLIDATED FINANCIAL STATEMENTS 

Consolidated Financial Statements 

Report of Independent Registered Public Accounting Firm 
Consolidated Balance Sheets 
Consolidated Statements of Operations 
Consolidated Statements of Comprehensive Income (Loss) 
Consolidated Statements of Stockholders’ Equity 
Consolidated Statements of Cash Flows 
Notes to Consolidated Financial Statements 

Financial Statement Schedule 

Schedule II—Valuation and Qualifying Accounts 

Page 

55
57
58
59
60
61
62

109

54 

  
    
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Report of Independent Registered Public Accounting Firm 

To the Stockholders and Board of Directors 
Clean Energy Fuels Corp.: 

Opinions on the Consolidated Financial Statements and Internal Control Over Financial Reporting 

We  have  audited  the  accompanying  consolidated  balance  sheets  of  Clean  Energy  Fuels  Corp.  and  subsidiaries  (the 
Company) as of December 31, 2019 and 2018, the related consolidated statements of operations, comprehensive income 
(loss), stockholders’ equity, and cash flows for each of the years in the three-year period ended December 31, 2019, and 
the related notes and financial statement schedule II (collectively, the consolidated financial statements). We also have 
audited the Company’s internal control over financial reporting as of December 31, 2019, based on criteria established in 
Internal Control – Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway 
Commission.   

In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial 
position of the Company as of December 31, 2019 and 2018, and the results of its operations and its cash flows for each 
of the years in the three-year period ended December 31, 2019, in conformity with U.S. generally accepted accounting 
principles. Also in our opinion, the Company maintained, in all material respects, effective internal control over financial 
reporting as of December 31, 2019 based on criteria established in Internal Control – Integrated Framework (2013) issued 
by the Committee of Sponsoring Organizations of the Treadway Commission. 

Change in Accounting Principle 

As discussed in Note 17 to the consolidated financial statements, the Company has changed its method of accounting for 
leases  as  of  January 1,  2019  due  to  the  adoption  of  Financial  Accounting  Standards  Board’s  Accounting  Standards 
Codification (ASC) Topic 842, Leases. 

Basis for Opinions 

The Company’s management is responsible for these consolidated financial statements, for maintaining effective internal 
control over financial reporting, and for its assessment of the effectiveness of internal control over financial reporting, 
included in the accompanying Management’s Report on Internal Control Over Financial Reporting. Our responsibility is 
to  express  an  opinion  on  the  Company’s  consolidated  financial  statements  and  an  opinion  on  the  Company’s  internal 
control over financial reporting based on our audits. We are a public accounting firm registered with the Public Company 
Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the 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 audits to obtain reasonable assurance about whether the consolidated financial statements are free of material 
misstatement, whether due to error or fraud, and whether effective internal control over financial reporting was maintained 
in all material respects.  

Our  audits  of  the  consolidated  financial  statements  included  performing  procedures  to  assess  the  risks  of  material 
misstatement  of  the  consolidated  financial  statements,  whether  due  to  error  or  fraud,  and  performing  procedures  that 
respond  to  those  risks.  Such  procedures  included  examining,  on  a  test  basis,  evidence  regarding  the  amounts  and 
disclosures in the consolidated financial statements. Our audits also included evaluating the accounting principles used 
and significant estimates made by management, as well as evaluating the overall presentation of the consolidated financial 
statements. Our audit of internal control over financial reporting included obtaining an understanding of internal control 
over  financial  reporting,  assessing  the  risk  that  a  material  weakness  exists,  and  testing  and  evaluating  the  design  and 
operating  effectiveness  of  internal  control  based  on  the  assessed  risk.  Our  audits  also  included  performing  such  other 
procedures as we considered necessary in the circumstances. We believe that our audits provide a reasonable basis for our 
opinions. 

55 

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/ KPMG LLP 

We have served as the Company’s auditor since 2001. 

Irvine, California 
March 10, 2020 

56 

 
 
 
CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

CONSOLIDATED BALANCE SHEETS 
(In thousands, except share and per share data) 

Current assets: 

Assets 

Cash, cash equivalents and current portion of restricted cash 
Short-term investments 
Accounts receivable, net of allowance for doubtful accounts of $1,919 and $2,412 as of December 31, 2018 
and 2019, respectively 
Other receivables 
Inventory 
Prepaid expenses and other current assets 
Derivative assets, related party 

Total current assets 

Operating lease right-of-use assets 
Land, property and equipment, net 
Long-term portion of restricted cash 
Notes receivable and other long-term assets, net 
Long-term portion of derivative assets, related party 
Investments in other entities 
Goodwill 
Intangible assets, net 
Total assets 

Liabilities and Stockholders' Equity 

Current liabilities: 

Current portion of debt 
Current portion of finance lease obligations 
Current portion of operating lease obligations 
Accounts payable 
Accrued liabilities 
Deferred revenue 
Derivative liabilities, related party 

Total current liabilities 
Long-term portion of debt 
Long-term portion of finance lease obligations 
Long-term portion of operating lease obligations 
Other long-term liabilities 

Total liabilities 

Commitments and contingencies (Note 16) 
Stockholders’ equity: 

  December 31,     December 31,  

2018 

2019 

  $ 

 30,624    $ 
 65,646   

 68,865   
 15,544   
 34,975   
 8,444   
 1,508   
 225,606   
 —   
 350,568   
 4,000   
 17,470   
 8,824   
 26,079   
 64,328   
 2,207   
 699,082    $ 

 4,712    $ 
 693   
 —   
 19,024   
 48,469   
 7,361   
 —   
 80,259   
 75,003   
 3,776   
 —   
 15,035   
 174,073   

  $ 

  $ 

 49,222 
 56,929 

 61,760 
 84,898 
 29,874 
 11,109 
 — 
 293,792 
 28,627 
 323,912 
 4,000 
 31,622 
 3,270 
 26,305 
 64,328 
 1,229 
 777,085 

 56,013 
 615 
 3,359 
 27,376 
 67,697 
 7,338 
 164 
 162,562 
 32,872 
 2,715 
 26,206 
 9,701 
 234,056 

Preferred stock, $0.0001 par value. 1,000,000 shares authorized; no shares issued and outstanding 
Common stock, $0.0001 par value. 304,000,000 shares authorized; 203,599,892 shares and 204,723,055 
shares issued and outstanding  as of December 31, 2018 and 2019, respectively 
Additional paid-in capital 
Accumulated deficit 
Accumulated other comprehensive loss 

Total Clean Energy Fuels Corp. stockholders’ equity 

Noncontrolling interest in subsidiary 

Total stockholders’ equity 
Total liabilities and stockholders’ equity 

 —   

 — 

 20   
 1,198,769   
 (688,653) 
 (2,138) 
 507,998   
 17,011   
 525,009   
 699,082    $ 

 20 
 1,203,186 
 (668,232)
 (1,566)
 533,408 
 9,621 
 543,029 
 777,085 

  $ 

See accompanying notes to consolidated financial statements. 

57 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
      
 
   
 
  
  
 
  
  
 
  
  
 
  
  
 
  
  
 
  
  
 
  
  
 
 
 
 
  
  
 
  
  
 
  
  
 
  
  
 
  
  
 
  
  
 
  
  
 
  
     
  
   
 
  
     
  
   
 
 
 
 
 
 
 
  
  
 
  
  
 
  
  
 
 
 
 
  
  
 
 
 
 
 
 
 
 
 
 
  
  
 
  
  
 
  
     
  
   
 
  
     
  
   
 
  
  
 
  
  
 
  
  
 
  
  
 
  
  
 
  
  
 
  
  
 
  
  
 
 
 
CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

CONSOLIDATED STATEMENTS OF OPERATIONS 
(In thousands, except share and per share data) 

Revenue: 

Product revenue 
Service revenue 
Total revenue 
Operating expenses: 

Cost of sales (exclusive of depreciation and amortization shown 
separately below): 

Product cost of sales 
Service cost of sales 
Inventory valuation provision 

Change in fair value of derivative warrants 
Selling, general and administrative 
Depreciation and amortization 
Asset impairments and other charges 

Total operating expenses 
Operating income (loss) 

Interest expense 
Interest income 
Other income (expense), net 
Loss from equity method investments 
Gain from extinguishment of debt, net 
Gain from sale of certain assets of subsidiary 
Loss from formation of equity method investment 

Income (loss) before income taxes 

Income tax benefit (expense) 
Net income (loss) 

Loss attributable to noncontrolling interest 

Net income (loss) attributable to Clean Energy Fuels Corp.  

Income (loss) per share: 

Basic 
Diluted 

Weighted-average common shares outstanding: 

Basic 
Diluted 

2017 

Year Ended December 31, 
2018 

2019 

$

 287,292  $ 
 54,307 
 341,599 

 307,839  $
 38,580 
 346,419 

 298,469 
 45,596 
 344,065 

 216,413 
 26,258 
 13,158 
(46)
 95,715 
 56,614 
 67,934 
 476,046 
 (134,447) 
 (17,751) 
 1,497 
 139 
 (131) 
 3,195 
 70,658 
 (6,465) 
 (83,305) 
 1,914 
 (81,391) 
 2,154 
 (79,237)  $ 

 194,509 
 18,415 
 — 
543
77,207
51,850
 — 
 342,524 
 3,895 
 (15,924) 
 2,857 
(566)
 (2,723) 
 —  
 4,782 
 (1,163) 
 (8,842) 
(341)
 (9,183) 
 5,393 
 (3,790)  $

 185,557 
 26,550 
 — 
 (1,039)
 73,444 
 49,625 
 — 
 334,137 
 9,928 
 (7,574)
 2,437 
1,990
(119)
—
7,455
 — 
 14,117 
(858)
 13,259 
 7,162 
 20,421 

 (0.53)  $ 
 (0.53)  $ 

 (0.02)  $
 (0.02)  $

 0.10 
 0.10 

$

$
$

 150,430,239 
 150,430,239 

   180,655,435 
 180,655,435 

 204,573,287 
 205,987,509 

See accompanying notes to consolidated financial statements. 

58 

 
 
 
 
 
 
CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

CONSOLIDATED STATEMENTS OF COMPREHENSIVE 
INCOME (LOSS) (In thousands) 

Year Ended Decem
    Clean Energy     Noncontrolling     
  Fuels Corp.    

Interest 

ber 31,

 2017 

Year Ended Decem
    Clean Energy     Noncontrolling      

ber 31,

 2018 

Year Ended Decem
    Clean Energy      Noncontrolling     

ber 31,

 2019 

Total 

Fuels Corp.    

Interest 

Total 

Fuels Corp.    

Interest 

Total 

Net income (loss) 
Other comprehensive income (loss), net of tax: 

Foreign currency translation adjustments net of 
$0 tax in 2017, 2018 and 2019 
Unrealized gains on available-for-sale securities, 
net of $0 tax in 2017, 2018 and 2019 
Release of foreign currency translation 
adjustments on contribution of subsidiary into 
equity method investment 

Total other comprehensive income (loss) 
Comprehensive income (loss) 

$ 

 (79,237)  $ 

 (2,154)  $ (81,391)   $ 

 (3,790)   $ 

 (5,393)  $  (9,183)  $ 

 20,421 

$ 

 (7,162)  $  13,259 

 (113) 

 189 

 —

—

 (113) 

 (1,305) 

 189 

 54 

 16,712 
 16,788 
 (62,449)  $ 

$ 

 — 
 — 

 16,712 
 16,788 

 (2,154)  $ (64,603)   $ 

 — 
 (1,251)  
 (5,041)   $ 

 — 

 — 

 — 
 — 

 (1,305) 

 54 

 — 
 (1,251) 

 (5,393)  $ (10,434)  $ 

 505 

 67 

 — 

 — 

 505 

 67 

 — 
 572 
 20,993 

$ 

 — 
 — 

 — 
 572 
 (7,162)  $  13,831 

See accompanying notes to consolidated financial statements. 

59

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ 
EQUITY (In thousands, except share data) 

Common stock  

Shares 

Amount 

Additional 
Paid-In 
Capital 

Accumulated 
Other 

     Accumulated      Comprehensive     

Deficit 

Income (Loss) 

Noncontrolling  
Interest in 
Subsidiary 

     Stockholders’ 

Total 

Equity 

Balance, December 31, 2016 

 145,538,063  $ 

 15  $  1,090,361  $  (603,836)  $ 

 (17,675)  $ 

 24,822  $   493,687 

Cumulative effect of adopting ASU 2016-09 and 
ASU 2016-16 (Note 1) 
Balance, January 1, 2017 

Issuance of common stock, net of offering costs 
Stock-based compensation 
Net loss 
Other comprehensive income 

Balance, December 31, 2017 

Cumulative effect of adopting ASU 2014-09 (Note 
1) 

Balance, January 1, 2018 

Issuance of common stock, net of offering costs 
Stock-based compensation 
Net loss 
Other comprehensive loss 
Increase in ownership in subsidiary 

Balance, December 31, 2018 

Issuance of common stock, net of offering costs 
Stock-based compensation 
Net income (loss) 
Other comprehensive income 
Increase in ownership in subsidiary 

 —  
 145,538,063 
 6,112,906 
 — 
 —  
 — 
 151,650,969 

 — 
 151,650,969 
 51,948,923 
 —  
 — 
 —  
 — 
 203,599,892 
 1,123,163 
 —  
 — 
 —  
 — 

Balance, December 31, 2019 

 204,723,055  $ 

 — 
 15 
 — 
 — 
 —  
 — 
 15 

 194 
 1,090,555 
 12,454 
 8,423 
 — 
 — 
 1,111,432 

(497)
 (604,333) 
 —  
 — 
 (79,237) 
 — 
 (683,570) 

—

 (17,675) 
 —  
 — 
 — 
 16,788 
(887)

 — 
 24,822 
 — 
 — 
 (2,154) 
 — 
22,668

 (303)
 493,384 
 12,454 
 8,423 
 (81,391)
 16,788 
 449,658 

 — 
 1,111,432 
 81,766 
 5,307 
 — 
 —  
 264 
 1,198,769 
 309 
 3,880 
 — 
 —  
 228 

 — 
 15 
 5 
 — 
 — 
 —  
 — 
 20 
 — 
 — 
 — 
 —  
 — 
 20  $  1,203,186  $  (668,232)  $ 

 (1,293) 
 (684,863) 
 — 
 —  
 (3,790) 
 — 
 — 
 (688,653) 
 — 
 —  
 20,421 
 — 
 — 

 — 
(887)
— 
—  
 — 
 (1,251) 
 — 
 (2,138) 
 — 
 —  
 — 
 572 
 — 
 (1,566)  $ 

 — 
22,668
 —
 —

 (1,293)
 448,365 
 81,771 
 5,307 
 (9,183)
 (1,251)
—
 525,009 
 309 
 3,880 
 13,259 
 572 
—
 9,621  $   543,029 

 (5,393) 
 — 
(264)
 17,011 
 — 
 — 
 (7,162) 
 — 
(228)

See accompanying notes to consolidated financial statements. 

60

 
 
 
CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

CONSOLIDATED STATEMENTS OF CASH FLOWS 
(In thousands) 

Cash flows from operating activities: 
Net income (loss) 

Adjustments to reconcile net income (loss) to net cash provided by (used in) operating 
activities: 

Depreciation and amortization 
Provision for doubtful accounts, notes and inventory 
Stock-based compensation expense 
Change in fair value of derivative instruments 
Amortization of discount and debt issuance cost 
Loss (gain) on disposal of property and equipment 
Gain on extinguishment of debt, net 
Gain from sale of certain assets of subsidiary 
Asset impairments and other charges 
Loss from formation of equity method investment 
Loss from equity method investments 
Right-of-use asset amortization 
Deferred income taxes 
Changes in operating assets and liabilities, net of assets and liabilities acquired and disposed:  

Accounts and other receivables 
Inventory 
Prepaid expenses and other assets 
Operating lease liabilities 
Accounts payable 
Deferred revenue 
Accrued expenses and other 
Net cash provided by (used in) operating activities 

Cash flows from investing activities: 
Purchases of short-term investments 
Maturities and sales of short-term investments 
Purchases of and deposits on property and equipment 
Loans made to customers 
Payments on and proceeds from sales of loans receivable 
Cash received from sale of certain assets of subsidiary, net 
Cash contributed in formation of equity method investment 
Investments in other entities 
Proceeds from disposal of property and equipment 

Net cash provided by (used in) investing activities 

Cash flows from financing activities: 

Issuances of common stock 
Fees paid for issuances of common stock, debt prepayment and debt issuance costs 
Proceeds from debt instruments and finance lease obligations 
Proceeds from revolving line of credit 
Repayments of borrowing under revolving line of credit 
Repayments of debt instruments and finance lease obligations 
Payments to holders of stock options in subsidiaries 

Net cash provided by (used in) financing activities 

Effect of exchange rates on cash, cash equivalents, and restricted cash 

Net increase (decrease) in cash, cash equivalents and restricted cash 

Cash, cash equivalents and restricted cash, beginning of year 
Cash, cash equivalents and restricted cash, end of year 
Supplemental disclosure of cash flow information: 

Income taxes paid 

   Interest paid, net of $103, $244 and $441 capitalized, respectively 

Year Ended December 31, 
2018 

2017 

2019 

$ 

 (81,391)  $ 

 (9,183)  $ 

 13,259 

 56,614 
 19,835 
 8,123 
 (46) 
 847   
 3,105 
 (3,195) 
 (70,658) 
 58,061 
 6,465 
 131 
 — 
 (2,400) 

 6,881 
 963 
 6,753 
 — 
 (8,964) 
 9,268 
 (14,709) 
 (4,317) 

 (340,194) 
 272,220 
 (36,307) 
 (894) 
 1,102   
 149,088 
 (2,404) 
 (1,928) 
 — 
 40,683 

 51,850 
 1,857 
 5,307 
 (9,788) 
 (1,220) 
 2,554 
 —   
 (4,782) 
 —   
 1,163 
 2,723 
 — 
 —   

 (6,360) 
 (1,065) 
 1,547 
 — 
 679 
 30 
 2,670 
 37,982 

 (348,091) 
 425,804 
 (25,263) 

 —
 518 
 871 
 — 
 —   
 530 
 54,369 

 10,767 
 (638) 
 9,765   
 312 
 (23,812) 
 (30,707) 
 (8,850) 
 (43,163) 
 890 
 (5,907) 
 43,115 
 37,208    $ 

 83,438 
 (1,004) 
 17,243 
 — 
 —   
 (194,886) 
 —   
 (95,209) 
 274 
 (2,584) 
 37,208 
 34,624    $ 

 49,625 
 2,586 
 3,880 
 5,545 
 (728)
 (2,536)
 — 
 (7,455)
 — 
 — 
 119 
 3,234 
 738 

 (63,408)
 3,439 
 (16,617)
 (3,786)
 9,316 
 (3,528)
 18,596 
 12,279 

 (171,080)
 180,704 
 (27,088)
 — 
 608 
 7,582 
 — 
 — 
 7,772 
 (1,502)

 309 
 (123)
 15,294 
 — 
 — 
 (7,795)
 — 
 7,685 
 136 
 18,598 
 34,624 
 53,222 

 344    $ 
 17,048    $ 

 257    $ 
 16,751    $ 

 36 
 6,788 

$ 

$ 
$ 

See accompanying notes to consolidated financial statements. 

61 

 
 
 
 
 
 
  
  
  
CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

Note 1 —Summary of Significant Accounting Policies 

The Company 

Clean Energy Fuels Corp., together with its majority and wholly owned subsidiaries (hereinafter collectively referred 
to as the “Company,” unless the context or the use of the term indicates or requires otherwise) is engaged in the business 
of selling natural gas as an alternative fuel for vehicle fleets and related natural gas fueling solutions to its customers, 
primarily in the United States and Canada. 

The Company’s principal business is supplying renewable natural gas (“RNG”), compressed natural gas (“CNG”) and 
liquefied natural gas (“LNG”) (RNG is delivered in the form of CNG or LNG) for light, medium and heavy-duty vehicles 
and providing operation and maintenance (“O&M”) services for public and private vehicle fleet customer stations. As a 
comprehensive  solution provider,  the  Company  also designs,  builds, operates  and  maintains  fueling  stations;  sells  and 
services natural gas fueling compressors and other equipment used in CNG stations and LNG stations; offers assessment, 
design and modification solutions to provide operators with code-compliant service and maintenance facilities for natural 
gas vehicle fleets; transports and sells CNG and LNG via “virtual” natural gas pipelines and interconnects; procures and 
sells RNG; sells tradable credits it generates by selling RNG and conventional natural gas as a vehicle fuel, including 
Renewable Identification Numbers (“RIN Credits” or “RINs”) under the federal Renewable Fuel Standard Phase 2 and 
credits  under  the  California  and  the  Oregon  Low  Carbon  Fuel  Standards  (collectively, “LCFS  Credits”);  helps  its 
customers acquire and finance natural gas vehicles; and obtains federal, state and local credits, grants and incentives. In 
addition, for all periods presented before March 31, 2017, the Company produced RNG at its own production facilities, 
and for all periods presented before December 29, 2017, the Company manufactured natural gas fueling compressors and 
other equipment used in CNG stations. See Note 4 for more information. 

Basis of Presentation 

The accompanying consolidated financial statements include the accounts of the Company and its subsidiaries, and, 
in the opinion of management, reflect all adjustments, which include only normal recurring adjustments, necessary to state 
fairly  the  Company’s  consolidated  financial  position,  results  of  operations,  comprehensive  loss  and  cash  flows  in 
accordance  with  accounting  principles  generally  accepted  in  the  United  States  of  America  (“US GAAP”).  All 
intercompany accounts and transactions have been eliminated in consolidation. 

Reclassifications 

The prior period amounts of the current portion of finance lease obligations, $0.7 million, and the long-term portion 
of finance lease obligations, $3.8 million, have been reclassified to be presented separately in the consolidated balance 
sheets  to  conform  to  the  current  period  presentation.  Deferred  income  taxes  of  $2.4  million  for  the  year  ended 
December 31,  2017  have  been  reclassified  to  be  presented  separately  in  the  consolidated  statements  of  cash  flows  to 
conform to the current year presentation. These reclassifications had no material effect on the Company’s consolidated 
financial position, results of operations, or cash flows as previously reported. 

Use of Estimates 

The preparation of consolidated financial statements in conformity with US GAAP requires management to make 
estimates and assumptions that affect the amounts reported in the accompanying consolidated financial statements and 
these notes. Actual results could differ from those estimates and may result in material effects on the Company’s operating 
results and financial position. Significant estimates made in preparing the accompanying consolidated financial statements 
include (but are not limited to) those related to revenue recognition, fair value measurements, goodwill and long-lived 
asset valuations and impairment assessments, income tax valuations and stock-based compensation expense. 

62 

CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

Inventory 

Inventory consists of raw materials and spare parts, work in process and finished goods and is stated at the lower of 
cost  (first-in,  first-out)  or  net  realizable  value.  The  Company  evaluates  inventory  balances  for  excess  quantities  and 
obsolescence by analyzing estimated demand, inventory on hand, sales levels and other information and reduces inventory 
balances to net realizable value for excess and obsolete inventory based on this analysis. 

Inventories consisted of the following as of December 31, 2018 and 2019 (in thousands): 

Raw materials and spare parts 
Finished goods 

Total inventory 

Derivative Instruments and Hedging Activities 

2018 
 34,890   $ 
 85  
 34,975   $ 

2019 
 29,874 
 — 
 29,874 

  $ 

  $ 

In connection with the Company’s Zero Now truck financing program, the Company entered into commodity swap 
contracts in October 2018 intended to manage risks related to the diesel-to-natural gas price spread in connection with the 
natural  gas  fuel  supply  commitments  the  Company  expects  to  make  in  its  anticipated  fueling  agreements  with  fleet 
operators that participate in the Zero Now program. The Company has not designated any derivative instruments as hedges 
for  accounting  purposes  and  does  not  enter  into  such  instruments  for  speculative  trading  purposes.  These  derivative 
instruments are recorded in the accompanying consolidated balance sheets and are measured as either an asset or liability 
at fair value with changes in fair value recognized in earnings. See Note 8 for more information. 

Property and Equipment 

Property and equipment are recorded at cost. Depreciation and amortization are recognized over the estimated useful 
lives of the assets using the straight-line method. The estimated useful lives of depreciable assets are three to twenty years 
for LNG liquefaction plant assets, up to ten years for station equipment and LNG trailers, and three to seven years for all 
other depreciable assets. Leasehold improvements are amortized over the shorter of their estimated useful lives or related 
lease  terms.  Periodically,  the  Company  receives  grant  funding  to  assist  in  the  financing  of  natural  gas  fueling  station 
construction.  The  Company  records  the  grant  proceeds  as  a  reduction  of  the  cost  of  the  respective  asset.  Total  grant 
proceeds received were approximately $4.4 million, $0.7 million, and $1.6 million for the years ended December 31, 2017, 
2018, and 2019, respectively. 

Long-Lived Assets 

The Company reviews the carrying value of its long-lived assets, including property and equipment and intangible 
assets with finite useful lives, for impairment whenever events or changes in circumstances indicate that the carrying value 
of an asset or asset group may not be recoverable. Events that could result in an impairment review include, among others, 
a significant decrease in the operating performance of a long-lived asset or asset group or the decision to close a fueling 
station. Impairment testing involves a comparison of the sum of the undiscounted future cash flows of the asset or asset 
group  to  its  carrying  amount.  If  the  sum  of  the  undiscounted  future  cash  flows  exceeds  the  carrying  amount,  then  no 
impairment exists. If the carrying amount exceeds the sum of the undiscounted future cash flows, then a second step is 
performed to determine the amount of impairment, if any, to be recognized. An impairment loss is recognized to the extent 
that the carrying amount of the asset or asset group exceeds its fair value. The fair value of the asset or asset group is based 
on estimated discounted future cash flows of the asset or asset group using a discount rate commensurate with the related 
risk.  The  estimate  of  future  cash  flows  requires  management  to  make  assumptions  and  to  apply  judgment,  including 
forecasting future sales and expenses and estimating useful lives of the assets. These estimates can be affected by a number 
of factors, including, among others, future results, demand, and economic conditions, many of which can be difficult to 
predict. 

63 

 
 
 
 
 
 
 
 
 
 
 
  
  
 
CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

There were no impairments of the Company’s long-lived assets in the years ended December 31, 2018 and 2019. In 
the third quarter of the year ended December 31, 2017, the Company recorded asset impairment charges of $32.3 million 
related  to  its  then-subsidiary,  IMW  Industries Ltd.  (“IMW”)  (formerly  known  as  Clean  Energy  Compression  Corp.) 
(“CEC”) and $20.4 million related to certain station closures (see Note 3 for more information). 

Intangible assets with finite useful lives are amortized over their respective estimated useful lives using the straight-
line method. The estimated useful lives of intangible assets with finite useful lives are from one to eight years for customer 
relationships, one to ten years for acquired contracts, two to ten years for trademarks and trade names, and three years for 
non-compete agreements. 

The Company’s intangible assets as of December 31, 2018 and 2019 were as follows (in thousands): 

Customer relationships 
Acquired contracts 
Trademark and trade names 
Non-compete agreements 
Total intangible assets 

Less accumulated amortization 

Net intangible assets 

  $ 

2018 
 5,376   $ 
 4,384  
 2,700  
 860  
 13,320  
 (11,113) 

  $ 

 2,207   $ 

2019 
 5,376 
 4,384 
 2,700 
 860 
 13,320 
 (12,091)
 1,229 

Amortization  expense  for  intangible  assets  was  $5.1  million,  $1.4  million,  and  $1.0  million  for  the years  ended 
December 31, 2017, 2018, and 2019, respectively. Estimated amortization expense for the two years succeeding the year 
ended December 31, 2019 is approximately $0.8 million in 2020 and $0.5 million in 2021. 

Goodwill 

Goodwill  represents  the  excess  of  costs  incurred  over  the  fair  value  of  the  net  assets  of  acquired  businesses.  The 
Company assesses its goodwill using either a qualitative or quantitative approach to determine whether it is more likely 
than not that the fair value of its reporting unit is less than its carrying value. The Company is required to use judgment 
when applying the goodwill impairment test, including, among other considerations, the identification of reporting unit(s), 
the assessment of qualitative factors, and the estimation of fair value of a reporting unit in the quantitative approach. The 
Company determined that it is a single reporting unit for the purpose of goodwill impairment tests. The Company performs 
the impairment test annually on October 1, or more frequently if facts and circumstances warrant a review. 

The qualitative goodwill assessment includes the potential impact on a reporting unit’s fair value of certain events and 
circumstances, including its enterprise value, macroeconomic conditions, industry and market considerations, cost factors, 
and other relevant entity-specific events. If it is determined, based upon the qualitative assessment, that it is more likely 
than not that the reporting unit’s fair value is less than its carrying amount, then a quantitative impairment test is performed. 

The quantitative assessment estimates the reporting unit’s fair value based on its enterprise value plus an assumed 
control premium as evidence of fair value. The estimates used to determine the fair value of the reporting unit may change 
based  on  results  of  operations,  macroeconomic  conditions,  stock  price  fluctuations,  or  other  factors.  Changes  in  these 
estimates could materially affect our assessment of the fair value and goodwill impairment for the reporting unit. 

During the years ended December 31, 2018 and 2019, the Company utilized the quantitative approach and concluded 

there were no indicators of impairment to goodwill. 

During the third quarter of the year ended December 31, 2017, as a result of the asset impairment charges recorded 
for intangible assets and stations (described previously and in Note 3), the Company determined that sufficient indicators 
of potential impairment existed to require an interim goodwill test of its one reporting unit prior to the annual test performed 

64 

 
 
 
 
 
 
 
 
     
     
 
  
  
 
  
  
 
  
  
 
  
  
 
  
  
 
CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

in  the  fourth  quarter  of  2017.  The  goodwill  test  was  performed  by  computing  the  fair  value  of  the  reporting  unit  and 
comparing it to the carrying value using a quantitative assessment. Based on the results of the goodwill test, the Company 
concluded that it was more likely than not that the fair value of its reporting unit exceeded its carrying amount and thus no 
impairment  existed.  The  annual  impairment  test  was  subsequently  performed  on  October 1  using  the  quantitative 
assessment and the Company concluded no impairment existed. 

The following table summarizes the activity related to the carrying amount of goodwill (in thousands): 

Balance as of December 31, 2017 
Balance as of December 31, 2018 
Balance as of December 31, 2019 

Revenue Recognition 

$ 
$ 
$ 

 64,328 
 64,328 
 64,328 

On January 1, 2018, the Company adopted Financial Accounting Standards Board (“FASB”) Accounting Standards 
Update  (“ASU”)  2014-09,  Revenue  from  Contracts  with  Customers  (Topic  606)  (“ASC  606”),  using  the  modified 
retrospective  method  and  recognized  the  cumulative  effect  of  initially  applying  ASC  606  as  an  adjustment  to 
“Accumulated deficit” as of January 1, 2018. The reported results for the years ended December 31, 2018 and 2019 are 
presented under ASC 606, while the reported results for periods prior to January 1, 2018 are not adjusted and were prepared 
in  accordance  with  ASC  605,  Revenue  Recognition.  The  adoption  of  ASC  606  did  not  have  a  material  impact  on  the 
Company’s consolidated financial statements. 

The ASC 606 adoption adjustments are as follows, and relate to significant financing components resulting from an 
advance payment by a customer of the Company’s subsidiary, NG Advantage LLC (“NG Advantage”) and an extended 
payment term to a station construction customer (in thousands): 

Balance as of 

Adjustments 

Balance as of 

Notes receivable and other long-term assets, net 
Deferred revenue 
Accumulated deficit 

      December 31, 2017       due to ASC 606 
 21,397   $ 
  $ 
  $ 
 3,432   $ 
 (683,570)  $ 
  $ 

 (963)    $ 
 330     $ 
 (1,293)    $ 

      January 1, 2018 
 20,434 
 3,762 
 (684,863)

The Company recognizes revenue when control of the promised goods or services is transferred to its customers, in 
an amount that reflects the consideration to which it expects to be entitled in exchange for the goods or services. In order 
to achieve that core principle, a five-step approach is applied: (1) identify the contract with a customer, (2) identify the 
performance  obligations  in  the  contract,  (3) determine  the  transaction  price,  (4) allocate  the  transaction  price  to  the 
performance  obligations  in  the  contract,  and  (5) recognize revenue  allocated  to  each performance  obligation  when  the 
Company satisfies the performance obligation. A performance obligation is a promise in a contract to transfer a distinct 
good or service to the customer and is the unit of account for revenue recognition. 

The Company is generally the principal in its customer contracts because it has control over the goods and services 
prior to them being transferred to the customer, and as such, revenue is recognized on a gross basis. Sales and usage-based 
taxes  are  excluded  from  revenues.  Revenue  is  recognized  net  of  allowances  for  returns  and  any  taxes  collected  from 
customers, which are subsequently remitted to governmental authorities. 

Volume-Related 

The Company’s volume-related revenue primarily consists of sales of RNG, CNG and LNG fuel, O&M services and 
RINs  and  LCFS  Credits  in  addition  to  changes  in  fair  value  of  the  Company’s  derivative  instruments  associated  with 
providing natural gas to customers under fueling contracts. 

65 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

Fuel  and  O&M  services  are  sold  pursuant  to  contractual  commitments  over  defined  goods-and-service  delivery 
periods. These contracts typically include a stand-ready obligation to supply natural gas and/or provide O&M services 
daily based on a committed and agreed upon routine maintenance schedule or when and if called upon by the customer. 

The Company applies the ‘right to invoice’ practical expedient and recognizes fuel and O&M services revenue in the 
amount to which the Company has the right to invoice. The Company has a right to consideration based on the amount of 
gasoline gallon equivalents of natural gas dispensed by the customer and current pricing conditions, which are typically 
billed to the customer on a monthly basis. Since payment terms are less than a year, the Company has elected the practical 
expedient which allows it to not assess whether a customer contract has a significant financing component. 

Contract modifications are not distinct from the existing contract and are typically renewals of fuel and O&M service 
sales. As a result, these modifications are accounted for as if they were part of the existing contract. The effect of a contract 
modification on the transaction price is recognized prospectively. 

The Company sells RINs and LCFS Credits to third parties that need the credits to comply with federal and state 
requirements. Revenue is recognized on these credits when there is an agreement in place to monetize the credits at a 
determinable price. 

The changes in fair value of derivative instruments relate to the Company’s commodity swap and customer fueling 
contracts.  The  contracts  are  measured  at  fair  value  with  changes  in  the  fair  value  recorded  in  the  accompanying 
consolidated statements of operations in the period incurred. The amounts are classified as revenue because the Company’s 
commodity swap contracts are used to economically offset the risk associated with the diesel-to-natural gas price spread 
resulting from anticipated customer fueling contracts under the Company’s Zero Now truck financing program. See Note 8 
for more information about these derivative instruments. For the years ended December 31, 2018 and 2019, changes in the 
fair value of commodity swaps and customer contracts amounted to a gain of $10.3 million and a loss of $(6.6) million, 
respectively. No amounts were recognized in 2017 as the inception of these arrangements was October 2018. 

Station Construction Sales 

Station construction contracts are generally short-term, except for certain larger and more complex stations, which 
can take up to 24 months to complete. For most of the Company’s station construction contracts, the customer contracts 
with  the  Company  to  provide  a significant  service of  integrating  a  complex  set  of  tasks  and  components  into  a  single 
station. Hence, the entire contract is accounted for as one performance obligation. 

The Company recognizes revenue over time as the Company performs under its station construction contracts because 
of the continual transfer of control of the goods to the customer, who typically controls the work in process. Revenue is 
recognized  based  on  the  extent  of  progress  towards  completion  of  the  performance  obligation  and  is  recorded 
proportionally as costs are  incurred. Costs to fulfill  the Company’s obligations under these contracts typically  include 
labor, materials and subcontractors’ costs, other direct costs and an allocation of indirect costs. 

Refinements of estimates to account for changing conditions and new developments are continuous and characteristic 
of the process. Many factors that can affect contract profitability may change during the performance period of the contract, 
including  differing  site  conditions,  the  availability  of  skilled  contract  labor,  the  performance  of  major  suppliers  and 
subcontractors, and unexpected changes in material costs. Because a significant change in one or more of these estimates 
could affect the profitability of these contracts, the contract price and cost estimates are reviewed periodically as work 
progresses and adjustments proportionate to the cost-to-cost measure of progress are reflected in contract revenues in the 
reporting  period  when  such  estimates  are  revised  as  discussed  above.  Provisions  for  estimated  losses  on  uncompleted 
contracts are recorded in the period in which the losses become known. 

Contract modifications are typically expansions in scope of an existing station construction project. As a result, these 
modifications are accounted for as if they were part of the existing contract. The effect of a contract modification on the 

66 

CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

transaction price and the Company’s measure of progress for the performance obligation to which it relates is recognized 
as an adjustment to revenue (either as an increase or a reduction) on a cumulative catch-up basis. 

Under  the  typical  payment  terms  of  the  Company’s  station  construction  contracts,  the  customer  makes  either 
performance-based payments (“PBPs”) or progress payments. PBPs are interim payments of the contract price based on 
quantifiable measures of performance or the achievement of specified events or milestones. Progress payments are interim 
payments of costs incurred as the work progresses. For some of these contracts, the Company may be entitled to receive 
an advance payment. The advance payment typically is not considered a significant financing component because it is 
used to meet working capital demands that can be higher in the early stages of a construction contract and to protect the 
Company if the customer fails to adequately complete some or all of its obligations under the contract. In addition, the 
customer retains a small portion of the contract price until completion of the contract. Such retained portion of the contract 
price is not considered a significant financing component because the intent is to protect the customer. 

In  certain  contracts  with  its  customers,  the  Company  agrees  to  provide  multiple  goods  or  services,  including 
construction  of  and  sale  of  a  station,  O&M  services,  and  sale  of  fuel  to  the  customer.  These  contracts  have  multiple 
performance obligations because the promise to transfer each separate good or service is separately identifiable and is 
distinct. This evaluation requires significant judgment and the decision to combine a group of contracts or separate the 
combined or single contract into multiple performance obligations could change the amount of revenue recognized in one 
or more periods. 

The Company allocates the contract price to each performance obligation using best estimates of the standalone selling 
price of each distinct good or service in the contract. The primary method used to estimate the standalone selling price for 
fuel and O&M services is observable standalone sales, and the primary method used to estimate the standalone selling 
price for station construction sales is the expected cost plus a margin approach because the Company sells customized 
customer-specific  solutions.  Under  this  approach,  the  Company  forecasts  expected  costs  of  satisfying  a  performance 
obligation and then adds an appropriate margin for the good or service. 

AFTC 

See discussion under “Alternative Fuels Tax Credit” below for more information about AFTC, which is not recognized 

as revenue until the period the credit is authorized through federal legislation. 

Other 

The majority of other revenue is from sales of used natural gas heavy-duty trucks purchased by the Company. Revenue 

on these contracts is recognized at the point in time when the customer accepts delivery of the truck. 

Alternative Fuels Tax Credit 

Under separate pieces of U.S. federal legislation, the Company has been eligible to receive a federal alternative fuels 
tax credit (“AFTC”) for its natural gas vehicle fuel sales made between October 1, 2006 and December 31, 2019. The 
AFTC, which had previously expired on December 31, 2016, was reinstated on February 9, 2018 to apply retroactively to 
vehicle  fuel  sales  made  from  January 1,  2017  through  December 31,  2017.  On  December 20,  2019,  AFTC  was 
retroactively  extended beginning  January 1, 2018  through  December 31,  2020.  The AFTC  credit  is  equal  to $0.50 per 
gasoline gallon equivalent of CNG that the Company sold as vehicle fuel, and $0.50 per diesel gallon of LNG that the 
Company sold as vehicle fuel in 2017, 2018 and 2019. 

Based  on  the  service  relationship  with  its  customers,  either  the  Company  or  its  customer  claims  the  credit.  The 
Company records its AFTC credits, if any, as revenue in its consolidated statements of operations because the credits are 
fully payable to the Company and do not offset income tax liabilities. As such, the credits are not deemed income tax 
credits under the accounting guidance applicable to income taxes. 

67 

 
 
CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

As a result of the most recent legislation authorizing AFTC being signed into law on December 20, 2019, all AFTC 
revenue for vehicle fuel the Company sold in the 2018 and 2019 calendar years, totaling $47.1 million, was recognized 
during the year ended December 31, 2019. As a result of the previous legislation authorizing AFTC being signed into law 
on February 9, 2018, all AFTC revenue for vehicle fuel the Company sold in the 2017 calendar year, totaling $25.2 million, 
was recognized and collected during the year ended December 31, 2018. In addition, during the year ended December 31, 
2018, the Internal Revenue Service (“IRS”) approved, and the Company recognized as revenue, $1.5 million of AFTC 
credit claims related to prior years. The Company recognized no AFTC revenue for the year ended December 31, 2017. 
AFTC is currently available through December 31, 2020 and may not be reinstated for vehicle fuel sales made after that 
date. 

LNG Transportation Costs 

The  Company  records  the  costs  incurred  to  transport  LNG  to  its  customers  in  “Product  cost  of  sales”  in  the 

accompanying consolidated statements of operations. 

Advertising Costs 

Advertising costs are expensed as incurred. Advertising costs were $0.3 million, $0.9 million and $1.2 million for 

the years ended December 31, 2017, 2018, and 2019, respectively. 

Stock-Based Compensation 

The Company recognizes compensation expense for all stock‑based payment arrangements over the requisite service 
period of the award. For stock options, the Company determines the grant date fair value using the Black‑Scholes option 
pricing model, which requires the input of certain assumptions, including the expected life of the stock‑based payment 
award, stock price volatility and risk‑free interest rate. For restricted stock units, the Company determines the grant date 
fair value based on the closing market price of its common stock on the date of grant. 

In March 2016, the FASB issued ASU 2016-09, Compensation – Stock Compensation (Topic 718): Improvements to 
Employee Share-Based Payments Accounting, which simplified the accounting for share-based payment transactions. The 
Company adopted the standard as of January 1, 2017 and in connection with the adoption, elected to recognize forfeitures 
when they occur. This election was implemented under the modified retrospective approach with a cumulative effect of 
an  increase  in  accumulated  deficit  of  $0.2  million,  net  of  tax.  This  adjustment  represents  the  cumulative  additional 
compensation expense that would have been recognized through the date of adoption 

Income Taxes 

Income  taxes  are  computed  using  the  asset  and  liability  method.  Under  this  method,  deferred  income  taxes  are 
recognized  by  applying  enacted  statutory  tax  rates  applicable  to  future years  to  differences  between  the  tax  bases  and 
financial carrying amounts of existing assets and liabilities. The impact on deferred taxes of changes in tax rates and laws, 
if  any,  are  applied  to  the years  during  which  temporary  differences  are  expected  to  be  settled  and  are  reflected  in  the 
consolidated  financial  statements  in  the  period  of  enactment.  Valuation  allowances  are  established  when  management 
determines it is more likely than not that deferred tax assets will not be realized. When evaluating the need for a valuation 
analysis,  we use  estimates  involving  a high  degree of judgment  including  projected  future US GAAP  income  and  the 
amounts and estimated timing of the reversal of any deferred tax assets and liabilities. 

The Company has a recognition threshold and a measurement attribute for the financial statement recognition and 
measurement  of tax positions taken or expected to be taken in a tax return. For those benefits to be recognized, a tax 
position must be more likely than not to be sustained upon examination by taxing authorities based on the technical merits 
of the position. The amount recognized is measured as the largest amount of benefit that has a greater than 50 percent 

68 

CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

likelihood of being realized upon ultimate settlement. The Company recognizes potential accrued interest and penalties 
related to unrecognized tax benefit in income tax expense. 

The  Company  operates  within  multiple  domestic  and  foreign  taxing  jurisdictions  and  is  subject  to  audit  in  these 
jurisdictions. These audits can involve complex issues, which may require an extended period of time to resolve. Although 
the Company believes that adequate consideration has been given to these issues, it is possible that the ultimate resolution 
of these issues could be significantly different from originally estimated. 

In October 2016, the FASB issued ASU 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other 
Than Inventory. Under the new standard, the selling (transferring) entity is required to recognize a current tax expense or 
benefit upon transfer of the asset. Similarly, the purchasing (receiving) entity is required to recognize a deferred tax asset 
or liability, as well as the related deferred tax benefit or expense, upon purchase or receipt of the asset. The Company early 
adopted the standard as of January 1, 2017. This election was implemented under the modified retrospective approach, 
resulting  in  a  $0.3  million  increase  in  accumulated  deficit  representing  the  cumulative  recognition  of  the  income  tax 
consequences of intra-entity transfers of assets other than inventory that occurred before the adoption date. 

Net Income (Loss) Per Share 

Basic net income (loss) per share is computed by dividing the net income (loss) attributable to Clean Energy Fuels 
Corp. by the weighted-average number of common shares outstanding and common shares issuable for little or no cash 
consideration during the period. Diluted net income (loss) per share is computed by dividing the net loss attributable to 
Clean Energy Fuels Corp. by the weighted-average number of common shares outstanding and common shares issuable 
for little or no cash consideration during the period and potentially dilutive securities outstanding during the period, and 
therefore reflects the dilution from common shares that may be issued upon exercise or conversion of these potentially 
dilutive securities, such as stock options, warrants, convertible notes and restricted stock units. The dilutive effect of stock 
awards and warrants is computed under the treasury stock method. The dilutive effect of convertible notes and restricted 
stock units is computed under the if-converted method. Potentially dilutive securities are excluded from the computations 
of diluted net income (loss) per share if their effect would be antidilutive. 

Foreign Currency Translation and Transactions 

The  Company  uses  the  local  currency  as  the  functional  currency  of  its  foreign  subsidiary  and  equity  method 
investment. Accordingly, all assets and liabilities outside the United States are translated into U.S. dollars at the rate of 
exchange in effect at the balance sheet date. Revenue and expense items are translated at the weighted-average exchange 
rates  prevailing  during  the  period.  Foreign  currency  translation  adjustments  are  recorded  as  accumulated  other 
comprehensive income (loss) in stockholders’ equity. 

Foreign  currency  transactions  occur  when  there  is  a  transaction  denominated  in  other  than  the  respective  entity’s 
functional  currency.  The  Company  records  the  changes  in  the  exchange  rate  for  these  transactions  in  its  consolidated 
statements of operations. For the years ended December 31, 2017, 2018, and 2019, foreign exchange transaction gains and 
(losses) were included in “Other income (expense), net” in the accompanying consolidated statements of operations and 
were $(0.2) million, $(0.0) million and $0.0 million,  respectively. 

Comprehensive Income (Loss) 

Comprehensive income (loss) is defined as the change in equity (net assets) of a business enterprise during the period 
from transactions and other events and circumstances from non-owner sources. The difference between net income (loss) 
and  comprehensive  income  (loss)  for  the years  ended  December 31,  2017,  2018,  and  2019  was  comprised  of  the 
Company’s foreign currency translation adjustments and unrealized gains and losses on available-for-sale securities. 

69 

CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

Concentration of Credit Risk 

Credit  is  extended  to  all  customers  based  on  financial  condition,  and  collateral  is  generally  not  required. 
Concentrations  of  credit  risk  with  respect  to  trade  receivables  are  limited  because  of  the  large  number  of  customers 
comprising  the  Company’s  customer  base  and  dispersion  across  many  different  industries  and  geographies.  Certain 
international customers, however, have historically been slower to pay on trade receivables. Accordingly, the Company 
continually monitors collections and payments from its customers and maintains a provision for estimated credit losses 
based upon its historical experience and any specific customer collection issues that it has identified. Although credit losses 
have historically been within the Company’s expectations and the provisions established, the Company cannot guarantee 
that it will continue to experience the same credit loss rates that it has in the past. 

Recently Adopted Accounting Changes and Recently Issued Accounting Standards 

Recently Adopted Accounting Changes 

In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842) (“ASC 842”), which amends the guidance in 
former Accounting Standards Codification Topic 840, Leases (“ASC 840”). The new standard requires most leases to be 
recognized on the balance sheet, which will increase reported assets and liabilities. Accounting for lessors and capital 
leases (now known as finance leases) is substantially similar to ASC 840. The new standard is effective for annual and 
interim periods in fiscal years beginning after December 15, 2018, which for the Company was the first quarter of 2019. 

The Company adopted this standard using the modified retrospective transition method. Results for reporting periods 
beginning after January 1, 2019 are presented under ASC 842, while prior period amounts are not adjusted. This adoption 
had a material effect on the Company’s consolidated balance sheets as a result of recording ROU assets and lease liabilities 
for  existing  operating  leases  on  the  consolidated  balance  sheets.  The  adoption  did  not  have  a  material  effect  on  the 
Company’s consolidated statements of operations or its consolidated statements of cash flows. 

As permitted under ASC 842, the Company elected the package of practical expedients that permit it to not reassess 
(1) whether an existing contract is or contains a lease, (2) the classification of existing leases, and (3) whether previously 
capitalized costs continue to qualify as initial indirect costs. The Company also elected the practical expedient allowing it 
to use hindsight in determining the lease term and in assessing the likelihood a purchase option will be exercised. 

The effect of adopting ASC 842 was as follows (in thousands): 

 Balance as of 

  December 31, 2018  
  $ 
  $ 
  $ 
  $ 

 —   $ 
 —   $ 
 48,469   $ 
 15,035   $ 

Adjustments 
Due to ASC 842   

 Balance as of 
January 1, 2019 
 24,453 
 25,943 
 47,973 
 14,041 

 24,453   $ 
 25,943   $ 
 (496)  $ 
 (994)  $ 

Operating lease right-of-use assets 
Operating lease obligations 
Accrued liabilities 
Other long-term liabilities 

Recently Issued Accounting Standards 

In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement 
of Credit Losses on Financial Instruments. The new standard amends the impairment model to utilize an expected loss 
methodology in place of the currently used incurred loss methodology, which will result in the more timely recognition of 
losses. This pronouncement is effective for reporting periods beginning after December 15, 2019. The Company will adopt 
this standard in the first quarter of 2020. The Company does not expect adoption of this ASU to have a material impact on 
its consolidated financial statements and related disclosures. 

70 

 
     
     
     
 
 
CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

Note 2 —Revenue from Contracts with Customers 

Disaggregation of Revenue 

The table below presents the Company’s revenue disaggregated by revenue source (in thousands): 

Years Ended December 31,  
2018 

2019 

2017 

Volume-related (1) 
Station construction sales 
AFTC 
Compressor sales (2) 
Other 

Total revenue 

  $  264,880   $  286,684   $  273,535 
 23,120 
 47,123 
 — 
 287 
  $  341,599   $  346,419   $  344,065 

 51,854  
 —  
 23,527  
 1,338  

 25,501  
 26,729  
—  
 7,505  

(1)    Includes changes in fair value of derivative instruments related to the Company’s commodity swap and customer fueling contracts. See Note 1 and 
Note 8 for more information about these derivative instruments. For the years ended December 31, 2018 and 2019, changes in the fair value of 
commodity swaps and customer fueling contracts amounted to a gain of $10.3 million and a loss of $6.6 million, respectively. 

(2)    The Company completed the CEC Combination (as defined in Note 4) during the year ended December 31, 2017 and no longer generates revenue 

from compressor sales. 

Remaining Performance Obligations 

Remaining performance obligations represent the transaction price of customer orders for which the work has not 
been  performed.  As  of  December 31,  2019,  the  aggregate  amount  of  the  transaction  price  allocated  to  remaining 
performance  obligations  was  $15.8  million,  which  related  to  the  Company’s  station  construction  sale  contracts.  The 
Company expects to recognize revenue on the remaining performance obligations under these contracts over the next 12 
to 24 months. 

For volume-related revenue, the Company has elected to apply an optional exemption, which waives the requirement 
to disclose the remaining performance obligation for revenue recognized through the ‘right to invoice’ practical expedient. 

Costs to Fulfill a Contract 

The Company capitalizes costs incurred to fulfill its contracts that (1) relate directly to the contract, (2) are expected 
to generate resources that will be used to satisfy the Company’s performance obligations under the contract, and (3) are 
expected  to  be  recovered  through  revenue  generated  under  the  contract.  Contract  fulfillment  costs  are  recorded  to 
depreciation  expense  as  the  Company  satisfies  its  performance  obligations  over  the  term  of  the  contract.  These  costs 
primarily relate to set-up and other direct installation costs incurred by NG Advantage, for equipment that must be installed 
on customers’ land before NG Advantage, LLC (“NG Advantage”) is able to deliver CNG to the customer because the 
customer  does  not  have  direct  access  to  the  natural  gas  pipelines.  These  costs  are  classified  in  “Land,  property,  and 
equipment, net” in the accompanying consolidated balance sheets. As of December 31, 2018 and 2019, these capitalized 
costs incurred to fulfill contracts were $9.1 million and $10.2 million with accumulated depreciation of $4.9 million and 
$6.3  million,  respectively,  and  related  depreciation  expense  of  $2.0  million  and  $2.2  million  for  the years  ended 
December 31, 2018 and 2019, respectively. 

Contract Balances 

The  timing  of  revenue  recognition,  billings  and  cash  collections  results  in  billed  accounts  receivable,  unbilled 
receivables (contract assets), and customer advances and deposits (contract liabilities) in the accompanying consolidated 

71 

 
 
 
 
 
 
 
 
 
 
 
 
 
     
     
     
 
  
  
  
 
  
  
  
 
  
  
  
 
  
  
  
 
CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

balance sheets. Changes in the contract asset and liability balances during the year ended December 31, 2019, were not 
materially affected by any factors outside the normal course of business. 

As of December 31, 2018 and 2019, the Company’s contract balances were as follows (in thousands): 

Accounts receivable, net 

Contract assets - current 
Contract assets - non-current 

Contract assets - total 

Contract liabilities - current 
Contract liabilities - non-current 

Contract liabilities - total 

Accounts Receivable, Net 

  $ 

  $ 

  $ 

  $ 

  $ 

2018 
 68,865   $ 

2019 

 61,760 

 656   $ 

 3,825  
 4,481   $ 

 5,513   $ 
 9,844  
 15,357   $ 

 455 
 3,777 
 4,232 

 5,329 
 6,339 
 11,668 

“Accounts receivable, net” in the accompanying consolidated balance sheets include amounts billed and currently due 
from customers. The amounts due are stated at their net estimated realizable value. The Company maintains an allowance 
for doubtful accounts to provide for the estimated amount of receivables that will not be collected. The allowance is based 
upon an assessment of customer creditworthiness, historical payment experience, and the age of outstanding receivables. 

Contract Assets 

Contract assets include unbilled amounts typically resulting from the Company’s station construction sale contracts, 
when the cost-to-cost method of revenue recognition is utilized and revenue recognized exceeds the amount billed to the 
customer, and right to payment is not just subject to the passage of time. Amounts may not exceed their net realizable 
value. Contract assets are classified as current or noncurrent based on the timing of billings. The current portion is included 
in “Prepaid expenses and other current assets” and the noncurrent portion is included in “Notes receivable and other long-
term assets, net” in the accompanying consolidated balance sheets. 

Contract Liabilities 

Contract liabilities consist of billings in excess of revenue recognized from the Company’s station construction sale 
contracts and payments primarily from a customer of NG Advantage in advance of the performance obligations. Billings 
in excess of revenue recognized of $2.0 million and $1.8 million and advance payments of $3.5 million and $3.5 million 
are  classified  as  current  as  of  December 31,  2018  and  2019,  respectively.  Deferred  revenue  is  classified  as  current  or 
noncurrent based on when the revenue is expected to be recognized. The current portion and noncurrent portion of deferred 
revenue  are  included  in  “Deferred  revenue”  and  “Other  long-term  liabilities,”  respectively,  in  the  accompanying 
consolidated balance sheets. 

The increase in the contract liabilities balance for the year ended December 31, 2019 is primarily driven by billings 
in excess of revenue recognized, offset by $5.9 million of revenue recognized related to the Company’s contract liability 
balances as of December 31, 2018. 

Note 3 —Asset Impairments, Other Charges, and Inventory Valuation Provision 

In light of continued low oil prices and the state of natural gas vehicle adoption, among other factors, during the third 
quarter of the year ended December 31, 2017, the Company undertook an evaluation of its operations with the intent of 
minimizing and eliminating assets it believed were underperforming. As a result of this evaluation, the Company identified 

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CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

certain of its fueling stations where the current and projected natural gas volume and profitability levels were not expected 
to be sufficient to support the Company’s investment in the fueling station assets, and the Company decided to close these 
stations.  The  Company  also  reduced  its  workforce  and  took  other  steps  to  reduce  overhead  costs  as  a  result  of  this 
evaluation, in an effort to lower its operating expenses going forward. In addition, this evaluation resulted in a strategic 
shift in how the Company viewed its natural gas compressor manufacturing business, operated by CEC. In an effort to 
increase  the  scale  and  reach  and  improve  the  financial  prospects  of  the  Company’s  investment  in  this  business,  the 
Company entered into an investment agreement with a strategic partner in November 2017, pursuant to which both parties 
combined their respective natural gas compressor manufacturing businesses (see Note 4 for more information). As a result 
of these decisions and the steps taken to implement them, during the year ended December 31, 2017, the Company incurred 
on a pre-tax basis, aggregate cash and non-cash charges related to asset impairments and other charges, and a non-cash 
inventory valuation charge. In addition, the Company incurred a cash charge for payments made as a result of temporary 
restrictions on its LCFS Credits account during the fourth quarter of 2017. 

The following table summarizes these charges (in thousands): 

Workforce reduction and related charges 
CEC asset impairments 
Station closures and related charges 
LCFS Credits charge 

Total asset impairments and other charges 

Inventory valuation provision 

Total charges 

Cash Charges 

Year Ended 
December 31, 2017 
 3,057 
 32,274 
 25,557 
 7,046 
 67,934 
 13,158 
 81,092 

  $ 

  $ 

The  following  table  summarizes  the  charges  related  to  the  foregoing  that  have  been  or  will  be  settled  with  cash 

payments and their related liability balances as of December 31, 2018 and 2019 (in thousands): 

Cash Payments 
Made in the 
 Year Ended 

Balance as of 

Cash Payments 
Made in the 
 Year Ended 

Balance as of 

Cash Payments 
Made in the 
 Year Ended 

Balance as of 

Employee severance 
Lease termination fees and AROs for 
station closures 

     Charges      December 31, 2017     December 31, 2017    December 31, 2018    December 31, 2018     December 31, 2019    December 31, 2019
 — 
  $  2,757   

 (2,757)   $ 

 —    $ 

 —    $ 

 —    $ 

 —    $ 

   4,083    
  $  6,840    

 (70)     
 (2,827)   $ 

 4,013      
 4,013    $ 

 (1,810)    
 (1,810)  $ 

 2,203      
 2,203    $ 

 (249)    
 (249)  $ 

 1,954 
 1,954 

Workforce Reduction and Related Charges 

As  a result of the  workforce reduction  in 2017,  severance  costs of $2.8 million  were  incurred  in  connection  with 
employee terminations and $0.3 million in stock-based compensation expense was incurred for the associated acceleration 
of certain stock awards. 

Impairments of Long-Lived Assets 

CEC: Asset Impairment Charges 

Due  to  the  continued  low  global  demand  for  compressors,  and  the  decision  to  position  CEC’s  compressor 
manufacturing  business  for  industry  consolidation  with  a  potential  strategic  partner,  the  Company’s  management 
determined that an impairment indicator was present for the long-lived assets of CEC. Recoverability was tested using 
future cash flow projections based on management’s long-term estimates of market conditions. Based on the results of this 

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

test, the sum of the undiscounted future cash flows was less than the carrying value of the CEC asset group. As a result, 
these long-lived assets were written down to their respective fair values, resulting in an impairment charge of $32.3 million. 
Fair value was based on expected future cash flows using Level 3 inputs. The cash flows are those expected to be generated 
by market participants, discounted at an appropriate rate for the risks inherent in those cash flow projections. 

Station Closures and Related Charges 

During the third quarter of the year ended December 31, 2017, the Company decided to close 42 fueling stations by 
December 31, 2017, which were performing below management’s expectations based on volume and profitability levels. 
As  a  result,  these  station  assets,  which  had  an  aggregate  carrying  value  of  $23.3  million,  were  written  down  to  their 
respective fair values of $2.9 million on an aggregate basis, resulting in a charge of $20.4 million. The fair values of these 
assets were determined using the cost approach. 

In addition, certain of these station closures triggered related other charges totaling $5.2 million, which consisted of 

write-offs for any deferred losses, lease termination fees, and an increase in asset retirement obligations (“AROs”). 

Due to the closure of these stations, the Company’s management assessed whether impairment indicators were present 
for the long-lived assets of the Company’s other fueling stations. The Company determined there were no indicators of 
impairment present among its remaining fueling stations and no further steps were required for an impairment evaluation 
with respect to these stations. 

Inventory Valuation Provision 

As  a  result  of  the  Company’s  evaluation  process  to  minimize  and  eliminate  underperforming  station  assets,  the 
Company  determined  that  $27.2  million  of  certain  station  parts  which  were  historically  classified  as  construction  in 
progress  within  “Land,  property,  and  equipment,  net”  were  to  be  reclassified  as  “Inventory”  in  the  accompanying 
consolidated balance sheets because they will primarily be used for stations to be sold. Subsequent to the reclassification, 
the  Company  calculated  and  recorded  a  lower  of  cost  or  market  non-cash  charge  of  $7.8  million  for  these  station 
parts. Additionally, in conjunction with its decision to seek a strategic partner for CEC, the Company incurred a lower of 
cost or market non-cash charge of $5.4 million for the inventory of CEC. The aggregate amount of $13.2 million is reported 
as  “Inventory  valuation  provision”  in  the  accompanying  consolidated  statements  of  operations  for  the year  ended 
December 31, 2017. 

LCFS Credits Cash Payments 

The Company generates LCFS Credits when it sells RNG and conventional natural gas for use as a vehicle fuel and 
can sell and transfer these credits to third parties. The California Air Resources Board (“CARB”) restricted the Company’s 
ability  to  sell  and  transfer  LCFS  Credits  during  the  third  and  fourth  quarters  of  2017  pending  completion  of  an 
administrative review. The Company was, however, required to settle preexisting contractual obligations to transfer LCFS 
Credits  to  third  parties  by  making  cash  payments  totaling  $7.0  million,  the  equivalent  value  of  the  LCFS  Credits  the 
Company would have otherwise transferred to satisfy its obligations. These payments are reported in “Asset impairments 
and other charges” in the accompanying consolidated statements of operations for the year ended December 31, 2017. In 
November 2017, CARB invalidated certain LCFS Credits the Company had generated in prior periods and released the 
restriction on the Company’s ability to sell and transfer LCFS Credits. 

Note 4 —Divestitures 

BP Transaction 

On  February 27,  2017,  Clean  Energy  Renewable  Fuels  (“Renewables”)  entered  into  an  asset  purchase  agreement 
(the “APA”) with BP Products North America (“BP”). Pursuant to the APA, Renewables agreed to sell to BP its assets 

74 

CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

relating to its RNG production business (the “BP Transaction”), consisting of Renewables’ two RNG production facilities, 
Renewables’  interest  in  joint  ventures  formed  with  a  third-party  to  develop  new  RNG  production  facilities,  and 
Renewables’ third-party RNG supply contracts (the “Assets”). The BP Transaction was completed on March 31, 2017 for 
a sale price of $155.5 million, plus BP assumed $8.8 million of debt. 

On March 31, 2017, BP paid Renewables $30.0 million in cash and delivered to Renewables a promissory note with 
a principal amount of $123.5 million, which was paid in full on April 3, 2017. In addition, as a result of the determination 
of certain post-closing adjustments, (i) BP paid Renewables an additional $2.0 million on June 22, 2017, and (ii) the gain 
recorded  from  the  BP  Transaction  was  reduced  by  $0.8  million.  Pursuant  to  the  APA,  the  valuation  date  of  the  BP 
Transaction was January 1, 2017, and as a result, the APA included certain adjustments to the purchase price to reflect a 
determination  of  the  amount  of  cash  accumulated  by  Renewables  from  the  valuation  date  to  the  closing  date,  net  of 
permitted cash outflows. Control of the Assets was not transferred until the BP Transaction was completed on March 31, 
2017. Accordingly, the full operating results of Renewables are included in the accompanying consolidated statements of 
operations  through  March 31,  2017.  The  net  cash  proceeds  from  the  BP  Transaction  were  $142.2  million,  net  of  $1.0 
million  cash  transferred  to  BP,  and  the  Company  incurred  $3.7  million  in  transaction  fees  in  connection  with  the  BP 
Transaction. 

The BP Transaction resulted in a total gain of $70.7 million, which was recorded in “Gain from sale of certain assets 
of subsidiary” in the accompanying consolidated statements of operations for the year ended December 31, 2017. Included 
in the determination of this gain amount is goodwill of $26.6 million allocated to the disposed assets based on the relative 
fair values of the assets disposed and the portion of the retained reporting unit. 

The Company determined that the BP Transaction did not meet the definition of a discontinued operation because the 
disposal did not represent a strategic shift that will have a major effect on the Company’s operations and financial results. 

In addition, under the APA, BP is required, following the closing of the BP Transaction, to pay Renewables up to an 
additional  $25.0  million  in  cash  over  a  five-year  period  if  certain  conditions  relating  to  the  Assets  are  met.  In 
February 2018, the Company received $0.9 million in cash for its satisfaction of the performance criteria for the first period 
under the APA, which ended on December 31, 2017. Upon its receipt of such cash, the Company paid $0.1 million in cash 
and issued 15,877 shares of the Company’s common stock with a fair value of $0.0 million to former holders of options 
to purchase membership units in Renewables. The performance criteria for the second period under the APA, which ended 
on December 31, 2018,  was also  satisfied, and  the  Company  received  a  cash payment  of $5.4  million  in  March 2019. 
During the year ended December 31, 2019, after receipt of the cash payment, the Company paid $0.6 million in cash to 
former holders of options to purchase membership units in Renewables. In December 2019, the Company and BP entered 
into  an  Amendment  to  the APA  (“Amended  APA”) which  amended  the  earn-out for years  four  and  five  and  paid the 
Company an additional $2.8 million for year three of the earn-out period. As a result of the performance criteria for year 
three  under  the  APA  being  satisfied,  and  the  additional  $2.8  million  received  by  the  Company  in  December 2019  in 
accordance with the Amended APA, the Company recognized a gross gain of $8.4 million and accrued amounts due to 
former holders of options to purchase membership units in Renewables of $0.9 million as of December 31, 2019. The 
Company recognized a net gain of $0.8 million, $4.8 million, and $7.5 million during the years ended December 31, 2017, 
2018 and 2019, respectively, which is included in “Gain from sale of certain assets of subsidiary” in the accompanying 
consolidated statements of operations. The net gain of $0.8 million during the year ended December 31, 2017 is included 
in the total gain on the BP Transaction stated above. 

As of December 31, 2019, the Company has paid $9.2 million in cash and issued 770,269 shares of the Company’s 
common stock with a fair value of $2.0 million to former holders of options to purchase membership units in Renewables.  

Following the completion of the BP Transaction, Renewables and the Company continue to procure RNG from BP 
under a long-term supply contract (the “BP Supply Agreement”) and from other RNG suppliers, and resell such RNG 
through the Company’s natural gas fueling infrastructure as Redeem, the Company’s RNG vehicle fuel. On October 1, 
2018, Renewables and BP amended the BP Supply Agreement to extend the term and add additional RNG supply. BP and 

75 

CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

Renewables share in the RINs and LCFS Credits generated from the increased RNG supply sold through the Company’s 
vehicle fueling infrastructure and to other customers. See Note 2 for information on revenue recognition of these credits. 

SAFE&CEC S.r.l. 

On November 26, 2017, the Company, through its former subsidiary, CEC, entered into an investment agreement with 
Landi  Renzo  S.p.A.  (“LR”),  an  alternative  fuels  company  based  in  Italy.  Pursuant  to  the  investment  agreement,  the 
Company and LR agreed to combine their respective natural gas compressor subsidiaries, CEC and SAFE S.p.A, in a new 
company  known  as  “SAFE&CEC  S.r.l.”  (such  combination  transaction  is  referred  to  as  the  “CEC  Combination”). 
SAFE&CEC  S.r.l.  is  focused  on  manufacturing,  selling  and  servicing  natural  gas  fueling  compressors  and  related 
equipment for the global natural gas fueling market. Upon the closing of the CEC Combination on December 29, 2017, 
the Company owns 49% of SAFE&CEC S.r.l. and LR owns 51% of SAFE&CEC S.r.l. 

The  Company  accounts  for  its  interest  in  SAFE&CEC  S.r.l.  using  the  equity  method  of  accounting  because  the 
Company does not control but has the ability to exercise significant influence over SAFE&CEC S.r.l.’s operations. The 
fair value of the CEC Combination was determined using the income valuation approach. Under the income approach, the 
Company used a discounted cash flow model (“DCF”) in which cash flows anticipated over several periods, plus a terminal 
value at the end of that time horizon, are discounted to their present value using an appropriate expected discount rate. The 
discount rate used for cash flows reflects capital market conditions and the specific risks associated with the business. This 
valuation approach is considered a Level 3 fair value measurement. If actual results, market and economic conditions, 
including interest rates, and other factors are not consistent with management’s estimates and assumptions used in this 
calculation, the Company may be exposed to additional impairment losses. 

The  CEC  Combination  resulted  in  a  loss  of  $6.5  million,  which  was  recorded  in  “Loss  from  formation  of  equity 
method investment” in the accompanying consolidated statements of operations for the year ended December 31, 2017. 
The Company incurred working capital adjustments, funding for certain post-closing commitments, and transaction fees, 
of which $3.3 million and $1.0 million was unpaid and recorded in “Accrued liabilities” in the accompanying consolidated 
balance sheets as of December 31, 2018 and 2019, respectively. Included in this loss amount is goodwill of $3.6 million 
that was allocated to the disposed assets based on the relative fair values of those assets and the portion of the reporting 
unit that was retained. Prior to the CEC Combination, CEC had a pre-tax loss of $45.1 million for fiscal year 2017. 

Subsequent  to  December 29,  2017,  the  Company  recorded  an  increase  of  $1.2  million  in  anticipated  relocation 
expenses under the investment agreement in “Accrued liabilities” in the accompanying consolidated balance sheet as of 
December 31,  2018  and  in  “Loss  from  formation  of  equity  method  investment”  in  the  accompanying  consolidated 
statements of operations for the year ended December 31, 2018. The Company recorded income (loss) from this investment 
of $(2.9) million and $0.0 million for the years ended December 31, 2018 and 2019, respectively. The Company had an 
investment  balance  in  SAFE&CEC  S.r.l.  of  $23.4  million  and  $23.7  million  as  of  December 31,  2018  and  2019, 
respectively. 

The Company determined that the CEC Combination did not meet the definition of a discontinued operation because 
the disposal did not represent a strategic shift that will have a major effect on the Company’s operations and financial 
results. 

Note 5 —Investments in Other Entities and Noncontrolling Interest in a Subsidiary 

SAFE&CEC S.r.l. 

On December 29, 2017, the Company obtained a 49% ownership interest in SAFE&CEC S.r.l. See Note 4 for more 

information. 

76 

CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

Summarized financial information for SAFE&CEC S.r.l. is as follows (in thousands): 

Revenue 
Gross profit 
Operating income (loss) 
Net income (loss) 

Current assets 
Non-current assets 

Total assets 

Current liabilities 
Non-current liabilities 

Total liabilities 

MCEP 

Year Ended December 31,  
2019 
2018 
 80,886 
 68,373   $ 
 20,525 
 20,124   $ 
 1,207 
 (4,881)  $ 
 93 
 (5,499)  $ 

As of December 31, 

2018 
 42,568   $ 
 48,629  
 91,197   $ 

2019 
 56,765 
 56,153 
 112,918 

  $ 
  $ 
  $ 
  $ 

  $ 

  $ 

  $ 

 36,177   $ 

 6,955  

  $ 

 43,132   $ 

 51,911 
 11,952 
 63,863 

On September 16, 2014, the Company formed a joint venture with Mansfield Ventures LLC (“Mansfield Ventures”) 
called Mansfield Clean Energy Partners LLC (“MCEP”), which is designed to provide natural gas fueling solutions to bulk 
fuel haulers in the United States. The Company and Mansfield Ventures each have a 50% ownership interest in MCEP. 
The Company accounts for its interest in MCEP using the equity method of accounting because the Company does not 
control but has the ability to exercise significant influence over MCEP’s operations. The Company recorded income (loss) 
from this investment of $(0.1) million, $0.2 million and $(0.1) million for the years ended December 31, 2017, 2018, and 
2019, respectively. The Company had an investment balance in MCEP of $1.7 million and $1.6 million as of December 31, 
2018 and 2019, respectively. 

NG Advantage 

On October 14, 2014, the Company entered into a Common Unit Purchase Agreement (“UPA”) with NG Advantage 
for a 53.3% controlling interest in NG Advantage. NG Advantage is engaged in the business of transporting CNG in high-
capacity trailers to industrial and institutional energy users, such as hospitals, food processors, manufacturers and paper 
mills that do not have direct access to natural gas pipelines. 

On July 14, 2017, the Company contributed to NG Advantage all of its right, title and interest in and to a CNG fueling 
station  located  in  Milton,  Vermont.  The  Company  purchased  this  CNG  fueling  station  from  NG  Advantage  in 
October 2014  in  connection  with  the  UPA,  and  at  that  time,  the  Company  entered  into  a  lease  agreement  with  NG 
Advantage to lease the station back to NG Advantage. This lease agreement was terminated contemporaneously with the 
contribution of the station to NG Advantage in July 2017. As consideration for the contribution, NG Advantage issued to 
the Company Series A Preferred Units with an aggregate value of $7.5 million. The Series A Preferred Units provide for 
an  accrued  return upon  a  liquidation  event  with respect  to  NG Advantage  and will  convert  into  common  units of NG 
Advantage  if  and  when  it  completes  a  future  equity  financing  that  satisfies  certain  specified  conditions;  however,  the 
Series A Preferred Units do not, in themselves, increase the Company’s controlling interest in NG Advantage. As a result, 
immediately following the contribution, the Company’s controlling interest in NG Advantage remained at 53.3%. 

NG Advantage has entered into an arrangement with BP for the supply, sale and reservation of a specified volume of 
CNG transportation capacity until March 2022. On February 28, 2018, the Company entered into a guaranty agreement 
with NG Advantage and BP pursuant to which the Company guarantees NG Advantage’s payment obligations to BP in 
the event of default by NG Advantage under the supply arrangement, in an amount up to an aggregate of $30.0 million 

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

plus related fees. This guaranty is in effect until thirty days following the Company’s notice to BP of its termination. As 
initial  consideration  for  the  guaranty  agreement,  NG  Advantage  issued  to  the  Company  19,660  common  units,  which 
increased the Company’s controlling interest in NG Advantage from 53.3% to 53.5%. 

On October 1, 2018, the Company purchased 1,000,001 common units from NG Advantage for an aggregate cash 
purchase price of $5.0 million. This purchase increased Clean Energy’s controlling interest in NG Advantage from 53.5% 
to 61.7%. 

In each month from November 2018 through February 2019, the Company was issued 100,000 additional common 
units of NG Advantage, for a total of 400,000 common units, pursuant to the guaranty agreement entered in February 2018. 
The issuance of 400,000 additional common units increased the Company’s controlling interest in NG Advantage to 63.0% 
and 64.6% as of December 31, 2018 and 2019, respectively. 

On February 15, 2019, NG Advantage and the Company entered into a transaction pursuant to which the Company 
agreed to lend to NG Advantage up to $5.0 million in accordance with the terms of a delayed draw convertible promissory 
note (the “2019 Note”). NG Advantage simultaneously drew $2.5 million under the 2019 Note, and on April 15, 2019, NG 
Advantage  drew  the  remaining  $2.5  million  under  the  2019  Note.  As  discussed  below,  on  June 28,  2019,  all  unpaid 
principal and accrued interest under the 2019 Note was subsumed within the 2019 Convertible Note (as defined below). 

On May 17, 2019, the Company agreed to lend to NG Advantage up to $0.5 million in accordance with the terms of 
a promissory note (the “2019 Bridge Loan”). On June 11, 2019, NG Advantage drew $0.1 million under the 2019 Bridge 
Loan. As discussed below, on June 28, 2019, all unpaid principal and accrued interest under the 2019 Bridge Loan was 
subsumed within the 2019 Convertible Note. 

On June 28, 2019, the Company agreed to lend to NG Advantage up to $15.2 million in accordance with the terms of 
a delayed draw convertible promissory note (the “June 2019 Convertible Note”). NG Advantage simultaneously drew $3.5 
million under the June 2019 Convertible Note. The outstanding principal and accrued interest under the 2019 Note and 
2019 Bridge Loan were incorporated into the June 2019 Convertible Note, which resulted in the cancellation of the 2019 
Note and 2019 Bridge Loan. In connection with the June 2019 Convertible Note, NG Advantage issued to the Company a 
warrant to purchase 86,879 common units.  During the period of July 1, 2019 through November 26, 2019, NG Advantage 
drew an additional $7.4 million under the June 2019 Convertible Note.  

On November 27, 2019, the Company agreed to lend to NG Advantage up to $26.7 million in accordance with the 
terms  of  a  delayed  draw  convertible  promissory  note  (the  “November 2019  Convertible  Note”).  NG  Advantage 
simultaneously  drew  $3.4  million  under  the  November 2019  Convertible  Note.  The  outstanding  principal  and  accrued 
interest  under  the  June 2019  Convertible  Note  were  incorporated  into  the  November 2019  Convertible  Note,  which 
resulted  in  the  cancellation  of  the  June 2019  Convertible  Note.  All  outstanding  principal  under  the  November 2019 
Convertible  Note  bore  interest  at  a  rate  of  12.0%  per  annum,  and  all  unpaid  principal  and  accrued  interest  under  the 
November 2019 Convertible Note was due on the earlier of December 31, 2019, subject to extension at the Company's 
discretion,  or  the  occurrence  of  an  event  of  default  (subject  to  notice  requirements  and  cure  periods  in  certain 
circumstances). In connection with the November 2019 Convertible Note, NG Advantage issued to the Company a warrant 
to  purchase  2,000,000  common  units.  In  December 2019,  NG  Advantage  drew  an  additional  $6.6  million  under  the 
November 2019 Convertible Note. As of December 31, 2019, NG Advantage had an outstanding balance of $26.7 million, 
plus accrued and unpaid interest, under the November 2019 Convertible Note.  This intercompany transaction has been 
eliminated  in  consolidation.  See  Note 23 —Subsequent  Events  for  additional  information  about  the  November 2019 
Convertible Note. 

The Company recorded a loss attributable to the noncontrolling interest in NG Advantage of $2.2 million, $5.4 million 
and $7.2 million for the years ended December 31, 2017, 2018, and 2019, respectively. The noncontrolling interest was 
$17.0 million and $9.6 million as of December 31, 2018 and 2019, respectively. 

78 

CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

Note 6 —Cash, Cash Equivalents and Restricted Cash 

Cash,  cash  equivalents  and  restricted  cash  as  of  December 31,  2018  and  2019  consisted  of  the  following  (in 

thousands): 

Current assets: 
Cash and cash equivalents 
Restricted cash - standby letters of credit 
Restricted cash - held in escrow 

Total cash, cash equivalents and current portion of restricted cash 

Long-term assets: 
Restricted cash - standby letters of credit 

Total long-term portion of restricted cash 

2018 

2019 

 29,844   $ 
 30  
 750  
 30,624   $ 

 49,207 
 15 
 — 
 49,222 

 4,000   $ 
 4,000   $ 

 4,000 
 4,000 

  $ 

  $ 

  $ 
  $ 

Total cash, cash equivalents and restricted cash 

  $ 

 34,624   $ 

 53,222 

The Company considers all highly liquid investments with maturities of three months or less on the date of acquisition 

to be cash equivalents. 

The  Company  places  its  cash  and  cash  equivalents  with  high  credit  quality  financial  institutions.  At  times,  such 
investments may be in excess of the Federal Deposit Insurance Corporation (“FDIC”) and Canadian Deposit Insurance 
Corporation (“CDIC”) limits. Financial instruments that potentially subject the Company to concentrations of credit risk 
consist principally of cash deposits. The amounts in excess of FDIC and CDIC limits were approximately $28.5 million 
and $47.9 million as of December 31, 2018 and 2019, respectively. 

The Company classifies restricted cash as short-term and a current asset if the cash is expected to be used in operations 
within a year or to acquire a current asset. Otherwise, the restricted cash is classified as long-term. Short-term restricted 
cash consisted of standby letters of credit renewed annually. Long-term restricted cash consisted of a standby letter of 
credit. 

Note 7 — Short-Term Investments 

Short-term investments include available-for-sale debt securities and certificates of deposit. Available-for-sale debt 
securities are carried at fair value, inclusive of unrealized gains and losses. Unrealized gains and losses on available for 
sale debt securities are recognized in other comprehensive income (loss), net of applicable income taxes. Gains or losses 
on sales of available-for-sale debt securities are recognized on the specific identification basis. 

The Company reviews available-for-sale debt securities for other-than-temporary declines in fair value below their 
cost basis each quarter and whenever events or changes in circumstances indicate that the cost basis of an asset may not 
be recoverable. This evaluation is based on a number of factors, including the length of time and the extent to which the 
fair value has been below its cost basis and adverse conditions related specifically to the security, including any changes 
to the credit rating of the security. As of December 31, 2019, the Company believes the carrying values for its available-
for-sale debt securities are properly recorded. 

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CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

Short-term investments as of December 31, 2018 consisted of the following (in thousands): 

Municipal bonds and notes 
Zero coupon bonds 
Corporate bonds 
Certificates of deposit 

Total short-term investments 

Amortized 
 Cost 

  $ 

  $ 

 9,210   $ 
 29,823  
 26,175  
 507  
 65,715   $ 

Gross 
Unrealized 
Losses 

Estimated 
 Fair Value 

 (19)  $ 
 (28) 
 (22) 
 —  
 (69)  $ 

 9,191 
 29,795 
 26,153 
 507 
 65,646 

Short-term investments as of December 31, 2019 consisted of the following (in thousands): 

Municipal bonds and notes 
Zero coupon bonds 
Corporate bonds 
Certificates of deposit 

Total short-term investments 

Amortized 
 Cost 

  $ 

  $ 

 2,986   $ 
 33,919  
 19,509  
 518  
 56,932   $ 

Gross  
Unrealized 
 Losses 

Estimated 
 Fair Value 

 —   $ 
 —  
 (3) 
 —  
 (3)  $ 

 2,986 
 33,919 
 19,506 
 518 
 56,929 

Note 8 - Derivative Instruments and Hedging Activities 

In October 2018, the Company executed two commodity swap contracts with Total Gas & Power North America, an 
affiliate of TOTAL and THUSA (as defined in Notes 13 and 14), for a total of five million diesel gallons annually from 
April 1, 2019 to June 30, 2024. These commodity swap contracts are used to manage diesel price fluctuation risks related 
to  the  natural  gas  fuel  supply  commitments  the  Company  makes  in  its  fueling  agreements  with  fleet  operators  that 
participate in the Zero Now truck financing program. These contracts are not designated as accounting hedges and as a 
result, changes in the fair value of these derivative instruments are recognized in "Product revenue" in the accompanying 
consolidated statements of operations. 

During 2019, the Company entered into fueling agreements with fleet operators under the Zero Now truck financing 
program.  The  fueling  agreements  contain  a  pricing  feature  indexed  to  diesel,  which  the  Company  determined  to  be 
embedded derivatives and recorded at fair value at the time of execution, with the changes in fair value of the embedded 
derivatives recognized as earnings in "Product revenue" in the accompanying consolidated statements of operations. 

Derivatives as of December 31, 2018 consisted of the following (in thousands): 

Assets: 
Commodity swaps: 

Current portion of derivative assets, related party 
Long-term portion of derivative assets, related party 

Total derivative assets 

  $ 

  $ 

 1,508   $ 
 8,824  
 10,332   $ 

 —   $ 
 —  
 —   $ 

 1,508 
 8,824 
 10,332 

  Gross Amounts  
Recognized 

  Gross Amounts  
Offset 

 Net Amount 
Presented 

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CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

Derivatives and embedded derivatives as of as of December 31, 2019 consisted of the following (in thousands): 

Assets: 
Commodity swaps: 

Long-term portion of derivative assets, related party 

  $ 

 3,270   $ 

 —   $ 

 3,270 

  Gross Amounts  
Recognized 

  Gross Amounts  
Offset 

 Net Amount 
Presented 

Fueling agreements: 

Prepaid expenses and other current assets 
Notes receivable and other long-term assets, net 

Total derivative assets 

Liabilities: 
Commodity swaps: 

 232  
 491  
 3,993   $ 

 —  
 —  
 —   $ 

 232 
 491 
 3,993 

  $ 

Current portion of derivative liabilities, related party 

  $ 

 164   $ 

 —   $ 

Fueling agreements: 
Accrued liabilities 
Other long-term liabilities 
Total derivative liabilities 

 42  
 39  

  $ 

 245   $ 

 —  
 —  
 —   $ 

 164 

 42 
 39 
 245 

As of December 31, 2018 and 2019, the Company had a total volume on open commodity swap contracts of 25.0 
million  and  21.9  million  diesel  gallons  at  a  weighted-average  price  per  gallon  of  approximately  $3.18  and  $2.30, 
respectively. 

The following table reflects the weighted-average price of open commodity swap contracts as of December 31, 2018 

and 2019, by year with associated volumes: 

December 31, 2018 

December 31, 2019 

Year 
2019 
2020 
2021 
2022 
2023 
2024 

Volumes 
    (Diesel Gallons)     

  Weighted -Average Price per  
Diesel Gallon 

Volumes 
     (Diesel Gallons)    

  Weighted -average Price per 
Diesel Gallon 

 3,125,000   $ 
 5,000,000   $ 
 5,000,000   $ 
 5,000,000   $ 
 5,000,000   $ 
 1,875,000   $ 

 3.18  
 3.18   
 3.18   
 3.18   
 3.18   
 3.18   

 —   $ 
 4,986,000   $ 
 5,000,000   $ 
 5,000,000   $ 
 5,000,000   $ 
 1,870,000   $ 

 — 
 2.37 
 2.34 
 2.34 
 2.34 
 1.76 

Note 9 —Fair Value Measurements 

The Company follows the authoritative guidance for fair value measurements with respect to assets and liabilities that 
are measured at fair value on a recurring basis and non-recurring basis. Under the standard, fair value is defined as the exit 
price, or the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between 
market participants, as of the measurement date. The standard also establishes a hierarchy for inputs used in measuring 
fair value that maximizes the use of observable inputs and minimizes the use of unobservable inputs by requiring that the 
most observable inputs be used when available. Observable inputs are inputs market participants would use in valuing the 
asset or liability developed based on market data obtained from sources independent of the Company. Unobservable inputs 
are inputs that reflect the Company’s assumptions about the factors market participants would use in valuing the asset or 
liability developed based upon the best information available in the circumstances. The hierarchy consists of the following 
three levels: Level 1 inputs are quoted prices (unadjusted) in active markets for identical assets or liabilities; Level 2 inputs 
include  quoted  prices  for  similar  assets  or  liabilities  in  active  markets,  quoted  prices  for  identical  or  similar  assets  or 
liabilities in markets that are not active, and inputs (other than quoted prices) that are observable for the asset or liability, 

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CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

either directly or  indirectly; Level 3  inputs  are unobservable  inputs for the  asset  or  liability.  Categorization within the 
valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement. 

Assets and Liabilities Measured at Fair Value on a Recurring Basis 

The Company’s available-for-sale debt securities and certificate of deposits are classified within Level 2 because they 
are valued using the most recent quoted prices for identical assets in markets that are not active and quoted prices for 
similar assets in active markets. 

The Company used the income approach to value its outstanding commodity swap contracts and embedded derivatives 
in  its  fueling  agreements  under  the  Zero  Now  truck  financing  program  (see  Note 8).  Under  the  income  approach,  the 
Company used a discounted cash flow (“DCF”) model in which cash flows anticipated over the term of the contracts are 
discounted to their present value using an expected discount rate. The discount rate used for cash flows reflects the specific 
risks in spot and forward rates and credit valuation adjustments. This valuation approach is considered a Level 3 fair value 
measurement.  The  significant  unobservable  inputs  used  in  the  fair  value  measurement  of  the  Company’s  derivative 
instruments  are  Ultra-Low  Sulfur  Diesel  (“ULSD”)  forward  prices  and  differentials  from  ULSD  to  Petroleum 
Administration for Defense District (“PADD”) regions. Significant increases (decreases) in any of those inputs in isolation 
would result in a significantly lower (higher) fair value measurement. Generally, a change in the ULSD forward prices is 
accompanied by a directionally opposite but less extreme change in the ULSD-PADD differential. 

The Company estimated the fair value of its outstanding commodity swap contracts based on the following inputs as 

of December 31, 2018 and 2019: 

Significant Unobservable Inputs 

Input Range 

     Weighted Average      

Input Range 

     Weighted Average

ULSD Gulf Coast Forward Curve 
Historical Differential to PADD 3 Diesel 
Historical Differential to PADD 5 Diesel 

$1.71 - $1.79    $ 
$0.76 - $1.16    $ 
$1.22 - $2.12    $ 

1.75 
0.89 
1.55 

$1.76 - $1.88   $ 
$0.79 - $1.16   $ 
$1.32 - $2.30   $ 

1.81 
0.91 
1.78 

December 31, 2018 

December 31, 2019 

The Company estimated the fair value of embedded derivatives in its fueling agreements under the Zero Now truck 

financing program based on the following inputs as of December 31, 2019: 

Significant Unobservable Inputs 

ULSD Gulf Coast Forward Curve 
Historical Differential to PADD 5 Diesel 

December 31, 2019 

Input Range 
$1.76 - $1.88 
$1.32 - $2.30 

      Weighted Average 

$ 
$ 

1.81 
1.78 

The Company’s liability-classified warrants (or "derivative warrants"), which were all issued by NG Advantage, are 
classified within Level 3 because the Company uses the Black-Scholes option pricing model to estimate the fair value 
based on inputs that are not observable in any market. 

There were no transfers of assets between Level 1, Level 2, or Level 3 of the fair value hierarchy as of December 31, 

2018 or 2019. 

82 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
     
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     
 
 
 
 
 
CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

The following tables provide information by level for assets and liabilities that are measured at fair value on a recurring 

basis as of December 31, 2018 and 2019 (in thousands): 

Assets: 
Available-for-sale securities (1): 
Municipal bonds and notes 
Zero coupon bonds 
Corporate bonds 

Certificates of deposit (1) 
Commodity swap contracts (2) 
Embedded derivatives (3) 
Liabilities: 

Warrants (4) 

Assets: 
Available-for-sale securities (1): 
Municipal bonds and notes 
Zero coupon bonds 
Corporate bonds 

Certificates of deposit (1) 
Commodity swap contracts (2) 
Embedded derivatives (3) 
Liabilities: 

Commodity swap contracts (2) 
Embedded derivatives (3) 
Warrants (4) 

     December 31, 2018       Level 1 

      Level 2 

      Level 3 

  $ 

 9,191   $ 
 29,795  
 26,153  
 507  
 10,332  
 —  

 —   $ 
 —  
 —  
 —  
 —  
 —  

 9,191   $ 
 29,795  
 26,153  
 507  
 —  
 —  

 — 
 — 
 — 
 — 
 10,332 
 — 

  $ 

 1,079   $ 

 —   $ 

 —   $ 

 1,079 

     December 31, 2019       Level 1 

      Level 2 

      Level 3 

  $ 

  $ 

 2,986   $ 
 33,919  
 19,506  
 518  
 3,270  
 723  

 —   $ 
 —  
 —  
 —  
 —  
 —  

 2,986   $ 
 33,919  
 19,506  
 518  
 —  
 —  

 — 
 — 
 — 
 — 
 3,270 
 723 

 164   $ 
 81  
 40  

 —   $ 
 —  
 —  

 —   $ 
 —  
 —  

 164 
 81 
 40 

(1) 

Included in “Short-term investments” in the accompanying consolidated balance sheets. See Note 7 for more information. 

(2) 

Included in “Derivative assets, related party” and “Long-term portion of derivative assets, related party” as of December 31, 2018, and “Derivative 
liabilities, related party” and “Long-term portion of derivative assets, related party” as of December 31, 2019, in the accompanying consolidated 
balance sheets. See Note 8 for more information. 

(3) 

Included in "Prepaid expenses and other current assets", "Notes receivable and other long-term assets, net", “Accrued liabilities” and “Other long-
term liabilities” in the accompanying consolidated balance sheets. See Note 8 for more information. 

(4) 

Included  in  "Other  long-term  liabilities"  as  of  December 31,  2018,  and  “Accrued  liabilities”  as  of  December 31,  2019  in  the  accompanying 
consolidated balance sheets. 

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CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

The following table provides a reconciliation of the beginning and ending balances of items measured at fair value on 
a recurring basis as shown in the tables above that used significant unobservable inputs (Level 3), as well as the change in 
unrealized gains or losses for the periods included in earnings (in thousands): 

Balance as of December 31, 2017 
Total gain (loss) 
Balance as of December 31, 2018 

Balance as of December 31, 2018 
Settlements, net 
Total gain (loss) 
Balance as of December 31, 2019 

Change in unrealized gain (loss) for the year ended 
December 31, 2018 included in earnings 
Change in unrealized gain (loss) for the year ended 
December 31, 2019 included in earnings 

Other Financial Assets and Liabilities 

Assets: 

  Embedded 

Assets: 
Commodity 

  Liabilities: 
  Commodity 

  Liabilities:   
  Embedded    Liabilities: 
     Swap Contracts     Derivatives    Swap Contracts    Derivatives      Warrants 
 (536)
  $ 
 —   $ 
 —  
 (543)
 —   $   (1,079)

 10,332  
 10,332   $ 

 —  $ 
 — 
 —  $ 

 — 
 — 
 — 

 —   $ 

  $ 

 $ 

 $ 

  $ 

  $ 

 10,332   $ 
 667  
 (7,729) 
 3,270   $ 

 —  $ 
 — 
 723 
 723  $ 

 — 
 — 
 (164)
 (164)

 $ 

 $ 

 —   $   (1,079)
 — 
 —  
 1,039 
 (81) 
 (40)
 (81)  $ 

  $ 

 10,332   $ 

 —  $ 

 — 

 $ 

 —   $ 

 (543)

  $ 

 (7,062)  $ 

 723  $ 

 (164)

 $ 

 (81)  $ 

 1,039 

The  carrying  amounts  of  the  Company’s  cash,  cash  equivalents  and  restricted  cash,  receivables  and  payables 
approximate fair value due to the short-term nature of those instruments. The carrying amounts of the Company’s debt 
instruments approximated their respective fair values as of December 31, 2018 and 2019. The fair values of these debt 
instruments were estimated using a discounted cash flow analysis based on interest rates offered on loans with similar 
terms  to  borrowers  of  similar  credit  quality,  which  are  Level  3  inputs.  See  Note 13  for  more  information  about  the 
Company’s debt instruments. 

Note 10 —Other Receivables 

Other receivables as of December 31, 2018 and 2019 consisted of the following (in thousands): 

Loans to customers to finance vehicle purchases 
Accrued customer billings 
Fuel tax credits 
Other 

Total other receivables 

2018 

 276   $ 

 6,261  
 434  
 8,573  
 15,544   $ 

2019 

 653 
 6,124 
 69,585 
 8,536 
 84,898 

  $ 

  $ 

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CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

Note 11 —Land, Property and Equipment 

Land, property and equipment, net as of December 31, 2018 and 2019 consisted of the following (in thousands): 

Land 
LNG liquefaction plants 
Station equipment 
Trailers 
Other equipment 
Construction in progress 

Less accumulated depreciation 

Total land, property and equipment, net 

2018 

 3,681   $ 
 94,633  
 319,119  
 75,901  
 97,268  
 73,485  
 664,087  
 (313,519) 
 350,568   $ 

2019 

 3,476 
 94,633 
 324,431 
 79,477 
 101,655 
 75,232 
 678,904 
 (354,992)
 323,912 

  $ 

  $ 

Included in "Land, property and equipment, net" are capitalized software costs of $29.3 million and $30.4 million as 
of December 31, 2018 and 2019, respectively. Accumulated amortization of the capitalized software costs is $22.5 million 
and $26.3 million as of December 31, 2018 and 2019, respectively. 

The Company recorded amortization expense related to the capitalized software costs of $4.4 million, $3.7 million 

and $3.9 million during the years ended December 31, 2017, 2018, and 2019, respectively. 

As of December 31, 2018, and 2019, $4.6 million and $3.0 million, respectively, are included in "Accounts payable" 
and  "Accrued  liabilities"  in  the  accompanying  consolidated  balance  sheets  which  amounts  are  related  to  purchases  of 
property and equipment. These amounts are excluded from the accompanying consolidated statements of cash flows as 
they are non-cash investing activities. 

Note 12 —Accrued Liabilities 

Accrued liabilities as of December 31, 2018 and 2019 consisted of the following (in thousands): 

Accrued alternative fuels incentives (1) 
Accrued employee benefits 
Accrued interest 
Accrued gas and equipment purchases 
Accrued property and other taxes 
Accrued salaries and wages 
Other (2) 

Total accrued liabilities 

2018 

 6,923   $ 
 2,248  
 78  
 12,833  
 3,397  
 8,609  
 14,381  
 48,469   $ 

2019 
 27,839 
 2,276 
 220 
 11,383 
 3,732 
 9,105 
 13,142 
 67,697 

  $ 

  $ 

(1) 

Includes the amount of RINs, LCFS Credits and the amount of AFTC payable to third parties. 

(2)  The amounts as of December 31, 2018 and 2019 include lease termination fees and AROs related to the closure of certain fueling stations and 
working capital adjustments (see Note 3 for more information), in addition to funding for certain commitments and transaction fees incurred as a 
result of the CEC Combination (see Note 4 for more information). No individual item in “Other” exceeds 5% of total current liabilities. 

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CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

Note 13 —Debt 

Debt obligations as of December 31, 2018 and 2019 consisted of the following (in thousands): 

7.5% Notes 
NG Advantage debt 
Other debt 
Total debt 

Less amounts due within one year 

Total long-term debt 

7.5% Notes 
NG Advantage debt 
SG Facility 
Other debt 
Total debt 

Less amounts due within one year 

Total long-term debt 

Principal Balances   

December 31, 2018 
      Unamortized Debt       
Financing Costs 

Balance, Net of 
Financing Costs 

  $ 

  $ 

 50,000    $ 
 28,904   
 1,024   
 79,928   
 (4,811)  
 75,117   $ 

 58   $ 
 155  
 —  
 213  
 (99) 
 114   $ 

 49,942 
 28,749 
 1,024 
 79,715 
 (4,712)
 75,003 

Principal Balances   

December 31, 2019 
      Unamortized Debt       
Financing Costs 

Balance, Net of 
Financing Costs 

  $ 

  $ 

 50,000    $ 
 33,898   
 4,400  
 796   
 89,094   
 (56,097)  
 32,997   $ 

 17   $ 
 192  
 —  
 —  
 209  
 (84) 
 125   $ 

 49,983 
 33,706 
 4,400 
 796 
 88,885 
 (56,013)
 32,872 

The following is a summary of the aggregate maturities of debt obligations for each of the yearly periods subsequent 

to December 31, 2019 (in thousands): 

7.5% Notes 
NG Advantage debt 
SG Facility 
Other debt 
Total 

7.5% Notes 

2021 

      2022 

2023 

2024 

     Thereafter   

Total 

2020 
  $  50,000   $
 5,857  
 —  
 240  

 —   $ 

 —   $ 

 —   $ 

 —   $ 

    6,300  
 —  
 215  
  $  56,097   $ 6,340   $  6,515   $  11,500   $  8,642   $ 

   11,407  
 —  
 93  

    4,242  
   4,400  
 —  

   6,092  
 —  
 248  

 —   $  50,000 
   33,898 
 —  
 4,400 
 —  
 —  
 796 
 —   $  89,094 

In  June 2013,  the  Company  issued  notes  (the  “7.5%  Notes”)  to  T.  Boone  Pickens  and  Green  Energy  Investment 
Holdings, LLC (“GEIH”) in the amount of $150.0 million. The 7.5% Notes bear interest at the rate of 7.5% per annum 
and are convertible at the option of the holder into shares of the Company’s common stock at a conversion price of $15.80 
per share (the “7.5% Notes Conversion Price”). Upon written notice to the Company, each holder of a 7.5% Note has the 
right to exchange all or any portion of the principal and accrued and unpaid interest under its 7.5% Notes for shares of the 
Company’s common stock at the 7.5% Notes Conversion Price. Additionally, subject to certain restrictions, the Company 
can force conversion of each 7.5% Note into shares of its common stock if such shares trade at a 40% premium to the 
7.5% Notes Conversion Price for at least 20 trading days in any consecutive 30 trading day period. 

The entire principal balance of each 7.5% Note is due and payable seven years following its original issuance and the 
Company may repay each 7.5% Note at maturity in shares of its common stock (provided that the Company may not issue 
more  than  13,993,630  shares  of  its  common  stock  to  holders  of  7.5%  Notes)  or  cash.  All  of  the  shares  issuable  upon 
conversion of the 7.5% Notes have been registered for resale by their holders pursuant to a registration statement that has 
been filed with and declared effective by the Securities and Exchange Commission. 

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CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

The  7.5%  Notes  include  customary  events  of  default  which,  if  any  of  them  occurs,  would  permit  or  require  the 
principal of, and accrued interest on, the 7.5% Notes to become, or to be declared, due and payable. No events of default 
under the 7.5% Notes had occurred as of December 31, 2019. 

On August 27, 2013, GEIH transferred $5.0 million in principal amount of its 7.5% Notes to third parties. 

On February 9, 2017, the Company purchased from Mr. Pickens his 7.5% Note due July 2018, having an outstanding 
principal amount of $25.0 million, for a cash purchase price of $21.8 million. Upon such purchase, the applicable 7.5% 
Notes were  surrendered  and  canceled  in  full.  The  Company’s  repurchase  of  this  7.5%  Note resulted  in  a  gain  of  $3.2 
million for the year ended December 31, 2017. 

On February 21, 2017, GEIH transferred $11.8 million in principal amount of its 7.5% Notes to third parties. 

On November 17, 2017, Mr. Pickens transferred all remaining $40.0 million in principal amount of his 7.5% Notes to 

a third party. 

On June 29, 2018, and pursuant to the consent of the holders of the 7.5% Notes to the Company’s payments of amounts 
owed thereunder before maturity, the Company paid to the holders, in cash, an aggregate of $25.0 million in principal 
amount and $0.5 million in accrued and unpaid interest owed under all outstanding 7.5% Notes due July 2018. Upon such 
payment, the purchased 7.5% Notes were canceled in full. 

On December 4, 2018, the Company purchased from the holders, thereof all outstanding 7.5% Notes due July 2019, 
having an aggregate outstanding principal amount of $50.0 million, for a cash purchase price of $50.5 million. Upon such 
payment, the purchased 7.5% Notes were canceled in full. 

As a result of the foregoing transactions, as of December 31, 2019, (i) GEIH held 7.5% Notes in an aggregate principal 
amount of $32.9 million and (ii) other third parties held 7.5% Notes in an aggregate principal amount of $17.1 million, all 
of which mature in June 2020. 

Plains Credit Facility 

On  February 29,  2016,  the  Company  entered  into  a  Loan and  Security Agreement  (the “Plains  LSA”) with  Plains 
Capital Bank (“Plains”), which, as amended on December 6, 2017, had a maturity date of September 30, 2019. Pursuant 
to the Plains LSA, Plains agreed to lend the Company up to $50.0 million on a revolving basis from time to time (the 
“Credit Facility”). There was no activity or borrowings under this Credit Facility during the years ended December 31, 
2018 and 2019, and the Credit Facility matured and was canceled on September 30, 2019. 

SG Credit Agreement 

On  January 2,  2019,  the  Company  entered  into  a  term  credit  agreement  (the “Credit  Agreement”)  with  Société 
Générale, a company incorporated as a société anonyme under the laws of France (“SG”). The Credit Agreement provides 
for a term loan facility (the “SG Facility”) pursuant to which the Company may obtain, subject to certain conditions, up to 
$100.0 million of loans (“SG Loans”) in support of its Zero Now truck financing program.  Under the Credit Agreement, 
the Company is permitted to use the proceeds from the SG Loans solely to fund the incremental cost of trucks purchased 
or  financed  under  the  Zero  Now  truck  financing  program  and  related  fees  and  expenses  incurred  by  the  Company  in 
connection therewith.  Interest on outstanding SG Loans accrues at a rate equal to LIBOR plus 1.30% per annum, and a 
commitment  fee  on  any  unused  portion  of  the  SG  Facility  accrues  at  a  rate  equal  to  0.39%  per  annum.  Interest  and 
commitment fees are payable quarterly. The Company is required to make mandatory prepayments under the SG Facility 
equal to any amounts the Company receives for complete or partial refunds of the incremental cost of trucks purchased or 
financed under the Zero Now program, and the Company is generally permitted to make complete or partial voluntary 
prepayments under the SG Facility with prior written notice to SG but without premium or penalty.  The Credit Agreement 

87 

CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

includes  certain representations, warranties and  covenants by  the  Company  and  also  provides  for  customary  events of 
default which, if any of them occurs, would permit or require, among other things, the principal of and accrued interest on 
the Loans to become or to be declared due and payable. Events of default under the Credit Agreement include, among 
others, nonpayment of principal and interest when due; violation of covenants; any default by the Company (whether or 
not resulting in acceleration) under any other agreement for borrowed money in excess of $20.0 million; voluntary or 
involuntary bankruptcy; repudiation or assignment of the Guaranty by THUSA; or a change of control of the Company. 

The Credit Agreement does not include financial covenants, and the Company has not provided SG with any security 
for its obligations under the Credit Agreement.  As described below, THUSA has entered into the Guaranty to guarantee 
the Company’s payment obligations to SG under the Credit Agreement.  As of December 31, 2019, the Company had $4.4 
million outstanding on the SG Facility and no events of defaults had occurred. 

TOTAL Credit Support Agreement 

On January 2, 2019, the Company entered into a credit support agreement (“CSA”) with Total Holdings USA Inc. 
(“THUSA”), a wholly owned subsidiary of TOTAL (as defined in Note 14). Under the CSA, THUSA agreed to enter into 
a guaranty agreement (“Guaranty”) pursuant to which it has guaranteed the Company’s obligation to repay to SG up to 
$100.0  million  in  SG  Loans  and  interest  thereon  in  accordance  with  the  Credit  Agreement.  In  consideration  for  the 
commitments of THUSA under the CSA, the Company is required to pay THUSA a quarterly guaranty fee at a rate per 
quarter equal to 2.5% of the average aggregate Loan amount for the preceding calendar quarter. 

Following any payment by THUSA to SG under the Guaranty, the Company would be obligated to immediately pay 
to THUSA the full amount of such payment plus interest on such amount at a rate equal to LIBOR plus 1.0%. In addition, 
the Company would be obligated to pay and reimburse THUSA for all reasonable out-of-pocket expenses it incurs in the 
performance of its services under the CSA, including all reasonable out-of-pocket attorneys’ fees and expenses incurred 
in connection with the payment to SG under the Guaranty or any enforcement or attempt to enforce any of the Company‘s 
obligations  under  the  CSA.  The  CSA  includes  customary  representations  and  warranties  and  affirmative  and  negative 
covenants by the Company. In addition, upon the occurrence of a “Trigger Event” and during its continuation, THUSA 
may, among other things: elect not to guarantee additional Loans; declare all or any portion of the outstanding amounts 
the Company owes THUSA under the CSA to be due and payable; and exercise all other rights it may have under applicable 
law. Each of the following events constitutes a Trigger Event: the Company defaults with respect to any payment obligation 
under  the  CSA;  any  representation  or warranty  made  by  the  Company  in  the  CSA was  false,  incorrect,  incomplete  or 
misleading in any material respect when made; the Company fails to observe or perform any material covenant, obligation, 
condition or agreement in the CSA; or the Company defaults in the observance or performance of any agreement, term or 
condition contained in any other agreement with THUSA or an affiliate of THUSA. 

As security for the Company’s obligations under the CSA, on January 2, 2019, the Company entered into a pledge 
and security agreement with THUSA and delivered a collateral assignment of contracts to THUSA, pursuant to which the 
Company collaterally assigned to THUSA all fueling agreements it enters into with participants in the Zero Now truck 
financing program. In addition, on January 2, 2019, the Company entered into a lockbox agreement with THUSA and 
Plains, under which the Company granted THUSA a security interest in the cash flow generated by the fueling agreements 
the Company enters into with participants in the Zero Now truck financing program. 

Until  the  occurrence  of  a  Trigger  Event  or  Fundamental  Trigger  Event  (as  described  below)  under  the  CSA,  the 
Company has the freedom to operate in the normal course and there are no restrictions on the flow of funds in and out of 
the lockbox account established pursuant to the lockbox agreement. Upon the occurrence of a Trigger Event under the 
CSA, all funds in the lockbox account will be: first, used to make scheduled debt repayments under the Credit Agreement; 
and second, released to the Company. Further, upon the occurrence of a “Fundamental Trigger Event” under the CSA and 
during its continuation, in addition to exercising any of the remedies available to THUSA upon the occurrence of a Trigger 
Event  as  described  above:  all  participants  in  the  Zero  Now  program  would  pay  amounts  owed  under  their  fueling 
agreements with the Company directly into the lockbox account; under a “sweep” mechanism, all cash in the lockbox 
account would be used to prepay all outstanding Loans under the Credit Agreement; no other disbursements from the 

88 

CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

lockbox account could be made without THUSA’s consent; and THUSA would retain dominion over the lockbox account 
and the funds in the account would remain as security for the Company’s payment and reimbursement obligations under 
the CSA. Each of the following events constitutes a Fundamental Trigger Event: the Company defaults in the observance 
or performance of any agreement, term or condition contained in the Credit Agreement that would constitute an event of 
default thereunder, up to or beyond any grace period provided in such agreement, unless waived by SG; the Company 
defaults in the observance or performance of any agreement, term or condition contained in any evidence of indebtedness 
other than the Credit Agreement, and the effect of such default is to cause, or permit the holders of such indebtedness to 
cause,  acceleration  of  indebtedness  in  an  aggregate  amount  for  all  such  collective  defaults  of  $20.0  million  or  more; 
voluntary and involuntary bankruptcy and insolvency events; and the occurrence of a change of control of the Company. 

The CSA will terminate following the later of: the payment in full of all of the Company’s obligations under the CSA; 
and the termination or expiration of the Guaranty following the maturity date of the last outstanding Loan or December 31, 
2023, whichever is earlier. 

NG Advantage Debt 

On May 12, 2016 and January 24, 2017, respectively, NG Advantage entered into a Loan and Security Agreement 
(the “Commerce LSA”) with Commerce Bank & Trust Company (“Commerce”), pursuant to which Commerce agreed to 
lend NG Advantage $6.3 million and $6.2 million, respectively. The proceeds were primarily used to fund the purchases 
of CNG trailers and equipment. Interest and principal for both loans are payable monthly in 84 equal monthly installments 
at an annual rate of 4.41% and 5.0%, respectively. As collateral security for the prompt payment in full when due of NG 
Advantage’s obligations to Commerce under the Commerce LSA, NG Advantage pledged to and granted Commerce a 
security interest in all of its right, title and interest in the CNG trailers and equipment purchased with the proceeds received 
under the Commerce LSA. 

On  November 30,  2016,  NG  Advantage  entered  into  a  Loan  and  Security  Agreement  (the  “Wintrust  LSA”)  with 
Wintrust Commercial Finance (“Wintrust”), pursuant to which Wintrust agreed to lend NG Advantage $4.7 million. The 
proceeds  were  primarily  used  to  fund  the  purchases  of  CNG  trailers  and  equipment.  Interest  and  principal  is  payable 
monthly in 72 equal monthly installments at an annual rate of 5.17%. As collateral security for the prompt payment in full 
when due of NG Advantage’s obligations to Wintrust under the Wintrust LSA, NG Advantage pledged to and granted 
Wintrust  a  security  interest  in  all  of  its  right,  title  and  interest  in  the  CNG  trailers  and  equipment  purchased  with  the 
proceeds received under the Wintrust LSA. 

Financing Obligations 

NG  Advantage  has  entered  into  sale  and  leaseback  transactions  with  various  lessors  as  described  below.  In  each 
instance, the sale and leaseback transaction does not qualify for sale-leaseback accounting because of NG Advantage’s 
continuing  involvement  with  the  buyer-lessor  due  to  a  fixed  price  repurchase  option.  As  a  result,  the  transactions  are 
recorded under the financing method, in which the assets remain on the accompanying consolidated balance sheets and 
the proceeds from the transactions are recorded as financing liabilities. 

On December 18, 2017, NG Advantage entered into a sale-leaseback arrangement through a Master Lease Agreement 
(the “BoA MLA”) with Bank of America Leasing & Capital, LLC (“BoA”). Pursuant to the BoA MLA, NG Advantage 
received $2.1 million in cash for CNG trailers and simultaneously leased them back from BoA for five years commencing 
January 1, 2018 with interest and principal payable in 60 equal monthly installments at an annual rate of 4.86%. 

On March 1, 2018, NG Advantage entered into a sale-leaseback arrangement through a Master Lease Agreement (the 
“First  National  MLA”)  with  First  National  Capital,  LLC  (“First  National”).  Pursuant  to  the  First  National  MLA,  NG 
Advantage  received  $6.3  million  in  cash,  net  of  fees  and  the  first  month’s  lease  payment  for  CNG  trailers  and 
simultaneously leased them back from First National for six years commencing March 1, 2018 with interest and principal 
payable in 72 equal monthly installments at an annual rate of 9.28%. 

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CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

On December 20, 2018 (the “Closing Date”), NG Advantage entered into a purchase agreement to sell a compression 
station for a purchase price of $7.0 million to an entity whose member owners were noncontrolling interest member owners 
of  NG  Advantage.  On  the  Closing  Date  and  immediately  following  the  consummation  of  the  sale  of  the  compression 
station, NG Advantage entered into a lease agreement with the buyer of the station (the “Lease”) pursuant to which the 
station was leased back to NG Advantage for a term of five years with monthly rent payments equal to $0.1 million at an 
annual rate of 12.0%. Of the purchase price, NG Advantage received $4.7 million in cash, net of fees, the first month’s 
lease payment, and the repayment of a $2.0 million promissory note from one of the member owners of the buyer, which 
was issued on November 19, 2018.  

On January 17, 2019, NG Advantage entered into a sale-leaseback arrangement through a Master Lease Agreement 
(the “Nations MLA”) with Nations Fund I, LLC (“Nations”). Pursuant to the Nations MLA, NG Advantage received $3.4 
million in cash, net of the first month’s lease payment, for CNG trailers and simultaneously leased them back from Nations 
for four years commencing February 1, 2019 with interest and principal payable in 48 equal monthly installments at an 
annual rate of 9.18%. 

In  October 2019,  NG  Advantage  entered  into  a  sale-leaseback  agreement,  pursuant  to  which  it  sold  compression 
equipment for a purchase price of $7.5 million and simultaneously leased it back for a term of five years with interest and 
principal payable in equal monthly installments at an annual rate of 10.47%. Of the purchase price, NG Advantage received 
$5.3 million in cash and $2.2 million is held as a security deposit. 

Other Debt 

The  Company  has  other  debt  due  at  various  dates  through  2023  bearing  interest  at  rates  up  to  5.02%  and  with  a 

weighted-average interest rate of 4.78% as of December 31, 2018 and 2019. 

Note 14 —Stockholders’ Equity 

Authorized Shares 

The  Company’s  certificate  of  incorporation  authorizes  the  issuance  of  two  classes  of  capital  stock  designated  as 
common stock and preferred stock, each having $0.0001 par value per share. As of December 31, 2019, the Company was 
authorized to issue 305,000,000 shares, of which 304,000,000 shares are designated common stock and 1,000,000 shares 
are designated preferred stock. 

Dividend Provisions 

The Company did not declare or pay any dividends during the years ended December 31, 2017, 2018 or 2019. 

Voting Rights 

Each holder of common stock has the right to one vote per share owned on matters presented for stockholder action. 

Issuance of Common Stock  

At-The-Market Offering Program 

On May 31, 2017, the Company terminated its equity distribution agreement (the “Sales Agreement”) with Citigroup 
Global  Markets Inc.  (“Citigroup”),  as  sales  agent  and/or  principal.  The  Sales  Agreement  was  terminable  at  will  upon 
written notification by the Company with no penalty. Pursuant to the Sales Agreement, the Company was entitled to issue 
and sell, from time to time through or to Citigroup, shares of its common stock having an aggregate offering price of up 
to  $200.0  million  in  an  “at-the-market”  offering  program  (the  “ATM  Program”).  The  ATM  Program  commenced  on 

90 

CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

November 11, 2015 when the Company and Citigroup entered into the original equity distribution agreement, which was 
amended and restated on September 9, 2016 and again on December 21, 2016 prior to its termination. 

The following table summarizes the activity under the ATM Program for the periods presented: 

(in 000s, except share amounts) 

Gross proceeds 
Fees and issuance costs 
Net proceeds 
Shares issued 

Total Private Placement 

Year ended December 31,  
2017 

$ 

$ 

 10,767 
 311 
 10,456 
 3,802,500 

On  May 9,  2018,  the  Company  entered  into  a  stock  purchase  agreement  (the “Purchase  Agreement”)  with  Total 
Marketing Services, S.A. (“Total”), a wholly owned subsidiary of TOTAL S.A. (“TOTAL”). Pursuant to the Purchase 
Agreement, the Company agreed to sell and issue, and Total agreed to purchase, up to 50,856,296 shares of the Company’s 
common  stock  at  a  purchase  price  of  $1.64  per  share,  all  in  a  private  placement  (the “Total  Private  Placement”).  The 
purchase price per share was determined based on the volume-weighted average price for the Company’s common stock 
between March 23, 2018 (the day on which discussions began between the Company and Total) and May 3, 2018 (the day 
on which the Company agreed in principle with Total regarding the structure and basic terms of its investment). As of the 
date of the Purchase Agreement, Total did not hold or otherwise beneficially own any shares of the Company’s common 
stock, and Total has agreed, until the later of May 9, 2020 or such date when it ceases to hold more than 5.0% of the 
Company’s common stock then outstanding, among other similar undertakings and subject to customary conditions and 
exceptions, to not purchase shares of the Company’s common stock or otherwise pursue transactions that would result in 
Total beneficially owning more than 30.0% of the Company’s equity securities without the approval of the Company’s 
board of directors. 

On June 13, 2018, the Company and Total closed the Total Private Placement, in which: (1) the Company issued to 
Total all of the 50,856,296 shares of its common stock issuable under the Purchase Agreement, resulting in Total holding 
approximately 25.0% of the outstanding shares of the Company’s common stock and the largest ownership position of the 
Company as of September 30, 2018; (2) Total paid to the Company an aggregate of $83.4 million in gross proceeds, which 
the Company has used and expects to continue to use for working capital and general corporate purposes, which may 
include executing its business plans, pursuing opportunities for further growth, and retiring a portion of its outstanding 
indebtedness; and (3) the Company and Total entered into a registration rights agreement, described below. In connection 
with the issuance of common stock, the Company incurred transaction fees of $1.9 million. 

Pursuant  to  the  Purchase  Agreement,  the  Company  and  Total  also  entered  into  a  registration  rights  agreement  on 
June 13, 2018, upon the closing under the Purchase Agreement. Pursuant to the registration rights agreement, the Company 
filed a registration statement with the SEC to cover the resale of the shares issued and sold under the Purchase Agreement, 
which was declared effective on August 16, 2018, and is obligated to use its commercially reasonable efforts to maintain 
the  effectiveness  of  such  registration  statement  until  all  such  shares  are  sold  or  may  be  sold  without  restriction  under 
Rule 144 under the Securities Act of 1933, as amended. As of December 31, 2019, the Company was in compliance with 
all of its registration covenants set forth in the registration rights agreement. 

Other 

As of December 31, 2019, a third-party and a related party held outstanding warrants, which expire in 2020 and 2025, 
respectively,  to  purchase  equity  interests  in  NG  Advantage.  Such  warrants  allow  the  purchase  of  up  to  765,106  NG 
Advantage common units and are accounted for as liability-classified warrants. The fair value was $1.1 million and $0.0 
million as of December 31, 2018 and 2019, respectively (see Note 9 for more information) and the gain (loss) from the 

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CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

change in fair value was $0.0 million, $(0.5) million and $1.0 million for the years ended December 31, 2017, 2018, and 
2019, respectively. 

Stock-Based Compensation 

The following table summarizes the compensation expense and related income tax benefit related to the Company’s 
stock-based compensation arrangements recognized in the accompanying consolidated statements of operations during the 
periods presented (in thousands): 

Stock-based compensation expense, net of $0 tax in 2017, 2018 and 2019 (1) 

  $ 

Year Ended December 31,  
2018 
 5,307   $ 

2017 
 8,423   $ 

2019 
 3,880 

(1)  $0.3 million of stock-based compensation expense for the year ended December 31, 2017 is recorded in “Asset impairments and other charges” in 
the  accompanying  consolidated  statements  of  operations  and  in  “Asset  impairments  and  other  charges”  in  the  accompanying  consolidated 
statements of cash flows. See Note 3 for more information. 

Equity Incentive Plans 

In December 2002, the Company adopted its 2002 Stock Option Plan (“2002 Plan”). 

In December 2006, the Company adopted its 2006 Equity Incentive Plan (“2006 Plan”), which became effective on 
May 24,  2007,  the  date  the  Company  completed  its  initial  public  offering  of  common  stock.  The  2002  Plan  became 
unavailable for new awards upon the effectiveness of the 2006 Plan, at which time unissued awards under the 2002 Plan 
became available for grant under the 2006 Plan. 

In May 2016, the Company adopted its 2016 Performance Incentive Plan (“2016 Plan”), which became effective on 
May 26, 2016, the date of approval of the 2016 Plan by the Company’s stockholders. The 2006 Plan became unavailable 
for new awards upon the effectiveness of the 2016 Plan. Unissued awards under the 2002 and 2006 Plans are not available 
for future grant under the 2016 Plan. If any outstanding award under the 2002 Plan or 2006 Plan expires or is canceled, 
the shares allocable to the unexercised portion of that award will be added to the share reserve under the 2016 Plan and 
will be available for grant under the 2016 Plan. As of December 31, 2019, the Company had 2,054,993 shares available 
for future grant under the 2016 Plan. 

Stock Options 

The Company has granted stock options to key employees that vest annually over the three years following the date 
of grant at a rate of 34%, 33% and 33%, respectively, if the holder is in service to the Company at each vesting date. The 
stock options granted have contractual terms of 10 years. The stock options are subject to the terms and conditions of the 
2006 and 2016 Plans and a Notice of Grant of Stock Option and Stock Option Agreement. 

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CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

The following table summarizes the Company’s stock option activity for the year ended December 31, 2019: 

  Weighted 
Average 
Exercise 
Price 

Number of    
Shares 

  Weighted   

Average 

  Remaining  
  Contractual  

Term 

Aggregate 
Intrinsic 
Value 

      (in years)       (in thousands)

Options outstanding as of December 31, 2018 

Granted 
Exercised 
Forfeited or expired 

Options outstanding as of December 31, 2019 
Options exercisable as of December 31, 2019 
Options vested and expected to vest as of December 31, 2019 

 8,699,677   $ 
 2,183,691  
 (58,602) 
    (1,703,101) 

 9,121,665   $ 
 6,246,982   $ 
 9,121,665   $ 

 8.06   
 2.19   
 1.79   
 10.07   
 6.32   
 8.31   
 6.32   

 5.82   $ 
 4.52   $ 
 5.82   $ 

 1,909 
 812 
 1,909 

As of December 31, 2019, there was $1.9 million of total unrecognized compensation cost related to unvested shares 
underlying outstanding stock options. That cost is expected to be expensed over a remaining weighted average period of 
1.45 years. The total fair value of shares vested during the year ended December 31, 2019 was $1.6 million. 

The  fair value  of  each  stock  option  granted  was  estimated  as  of  the  date  of grant  using  the  Black-Scholes option 

pricing model and using the following assumptions: 

Dividend yield 
Expected volatility 
Risk-free interest rate 
Expected life in years 

2017 
0.0% 
63.61% 
2.05% 
6.0 

Year Ended December 31,  
2018 
0.0% 
70.2% to 74.6%  
2.70% to 2.71%  
6.0 

2019 
0.0% 
57.3% to 61.5% 
2.11% to 2.53% 
6.0 

The volatility amounts used were estimated based on the Company’s historical and implied volatility of its traded 
options. The expected lives used were based on historical exercise periods and the Company’s anticipated exercise periods 
for its outstanding stock options. The risk-free interest rates used were based on the U.S. Treasury yield curve for the 
expected life of the stock options at the time of grant. 

The weighted-average grant date fair values per share of stock options granted during the years ended December 31, 
2017, 2018, and 2019, were $1.67, $0.88 and $1.28, respectively. The aggregate intrinsic value of options exercised during 
the years ended December 31, 2018 and 2019 were $0.0 million and $0.1 million, respectively. There were no options 
exercised during the year ended December 31, 2017. The Company recorded $2.2 million, $2.0 million and $2.2 million 
of stock option expense during the years ended December 31, 2017, 2018, and 2019, respectively. The Company has not 
recorded any tax benefit related to its stock option expense. 

Service-Based Restricted Stock Units 

The Company has granted service-based restricted stock units (“Service-Based RSUs”) to key employees that vest 
annually over the three years following the date of grant at a rate of 34%, 33% and 33%, respectively, if the holder is in 
service to the Company at each vesting date. The Service-Based RSUs are subject to the terms and conditions of the 2006 
and 2016 Plans and a Notice of Grant of Restricted Stock Unit and Restricted Stock Unit Agreement. 

93 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     
     
  
       
   
  
  
       
   
  
  
       
   
  
       
   
  
  
  
 
 
 
 
 
 
 
 
 
 
 
     
     
     
  
 
 
  
 
  
 
  
  
  
 
CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

The following table summarizes the Company’s Service-Based RSU activity for the year ended December 31, 2019: 

RSU outstanding as of December 31, 2018 

Granted 
Vested 
Forfeited or expired 

RSU outstanding and unvested as of December 31, 2019 

Number of 
Shares 
 2,279,601  
 —  
 (952,032) 
 (95,764) 
 1,231,805  

$ 

$ 

Weighted 
Average 
Fair Value at 
Grant Date 

 1.88 
 — 
 2.13 
 1.59 
 1.71 

The weighted average grant-date fair value of RSUs granted during the years ended December 31, 2017 and 2018 was 

$1.36. There were no RSUs granted during the year ended December 31, 2019. 

As of December 31, 2019, there was $0.8 million of total unrecognized compensation cost related to unvested shares 
underlying outstanding Service-Based RSUs. That cost is expected to be expensed over a remaining weighted-average 
period of 0.91 years. 

The Company recorded $5.9 million, $3.0 million and $1.5 million of expense during the years ended December 31, 
2017, 2018, and 2019, respectively, related to the Service-Based RSUs. The Company has not recorded any tax benefit 
related to its Service-Based RSU expense. 

Employee Stock Purchase Plan 

On May 7, 2013, the Company adopted an employee stock purchase plan (the “ESPP”), pursuant to which eligible 
employees may purchase shares of the Company’s common stock at 85% of the fair market value of the common stock on 
the last trading day of two consecutive, non-concurrent offering periods each year. The Company has reserved 2,500,000 
shares of its common stock for issuance under the ESPP, and the first offering period under the ESPP commenced on 
September 1, 2013. 

The Company recorded $0.0 million of expense related to the ESPP during each of the years ended December 31, 
2017, 2018, and 2019. The Company has not recorded any tax benefit related to its ESPP expense. As of December 31, 
2019, the Company had issued an aggregate of 526,307 shares pursuant to the ESPP. 

Note 15 —Income Taxes 

The components of income (loss) before income taxes for the years ended December 31, 2017, 2018, and 2019 are as 

follows (in thousands): 

U.S. 
Foreign 

Total income (loss) before income taxes 

94 

2017 

2018 

2019 

  $  (44,535)   $   (9,153)  $   14,981 
 (864)
  $  (83,305)   $   (8,842)  $   14,117 

    (38,770)  

 311  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     
     
  
  
  
  
  
  
  
  
 
 
 
 
 
 
 
 
 
 
 
 
     
     
     
 
  
  
 
CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

The provision for income taxes for the years ended December 31, 2017, 2018, and 2019 consists of the following (in 

thousands): 

Current: 
Federal 
State 
Foreign 

Total current 

Deferred: 
Federal 
State 
Foreign 

Total deferred 
Total expense (benefit) 

2017 

2018 

2019 

  $ 

 31   $ 

 —   $ 

 231  
 224  
 486  

 (978)  
 (184)  
 (1,238)  
 (2,400)  
  $   (1,914)   $ 

 341  
 —  
 341  

 —  
 —  
 —  
 —  

 341   $ 

 — 
 116 
 4 
 120 

 293 
 445 
 — 
 738 
 858 

The Company’s federal and state tax benefit from the utilization of net operating loss carryovers for the year ended 
December 31, 2017  was $6.9  million  and $1.5  million,  respectively.  Income  tax  expense  (benefit)  for  the years  ended 
December 31, 2017, 2018, and 2019 differs from the “expected” amount computed using the federal income tax rate of 
35% as of December 31, 2017 and 21% as of December 31, 2018 and 2019 as a result of the following (in thousands): 

Computed expected tax (benefit) 
Nondeductible expenses 
Tax rate differential on foreign earnings 
Joint ventures 
Noncontrolling interest 
Impact of federal income tax rate change 
Tax credits 
Other 
Change in valuation allowance 
Total tax expense (benefit) 

2017 

2018 

  $  (29,157)   $   (1,857)  $ 

 13,420  
 11,860  
 —  
 —  
 59,729  
 (27)  
 2,376  
    (60,115)  
  $   (1,914)   $ 

2019 
 2,964 
 3,087 
 245 
 (369)
 4,114 
 — 
    (10,314)
 665 
 466 
 858 

 5,674  
 (56) 
 947  
 1,133  
 —  
 (6,603) 
 985  
 118  
 341   $ 

On December 21, 2017, the TCJA was enacted. Among other things, the TCJA reduces the U.S. federal corporate tax 
rate from 35 percent to 21 percent beginning on January 1, 2018, requires companies to pay a one-time transition tax on 
certain previously unremitted earnings of non-U.S. subsidiaries, creates new taxes on certain foreign sourced earnings and 
imposes additional limitations on certain deductions, including interest expense and net operating losses arising after 2017. 
The  Company  has  assessed  the  impact  of  the  TCJA  and  is  not  subject  to  the  one-time  transition  tax.  The  Company 
remeasured  certain  deferred  tax  assets  and  liabilities  and  uncertain  tax  positions  based  on  the  rates  at  which  they  are 
expected  to  reverse  in  the  future,  which  is  generally  21 percent  under  the  TCJA.  The  decrease  in  the  Company’s  net 
deferred tax assets as of December 31, 2017 was offset by a corresponding decrease in its valuation allowance. 

The AFTC, which had previously expired on December 31, 2016, was reinstated on February 9, 2018 to apply to 
vehicle fuel sales made from January 1, 2017 through December 31, 2017. As a result, all AFTC revenue for vehicle fuel 
the Company sold in the 2017 calendar year was recognized and collected during the year ended December 31, 2018. On 
December 20, 2019, AFTC was retroactively extended beginning January 1, 2018 through December 31, 2020. As a result, 
all AFTC revenue for vehicle fuel the Company sold in the 2018 and 2019 calendar year was recognized during the year 
ended December 31, 2019. 

The Company recorded a federal tax benefit of $0.0 million, $6.1 million and $10.5 million related to the exclusion 
of AFTC associated with 2017, 2018 and 2019 fuel sales in excess of its fuel tax obligation, respectively. These amounts 

95 

 
 
 
 
 
 
 
 
 
 
 
     
     
     
  
 
     
 
     
 
   
 
  
  
  
 
  
  
  
 
  
  
  
 
  
    
  
    
  
   
 
  
  
  
 
  
  
  
 
  
  
  
 
  
  
  
 
 
 
 
 
 
 
 
 
 
 
 
     
     
     
 
  
  
  
 
  
  
  
 
  
  
  
 
  
  
  
 
  
  
  
 
  
  
 
  
  
  
 
  
  
 
CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

increased the Company’s deferred tax asset attributed to its federal net operating loss carryforwards and the Company’s 
deferred tax asset valuation allowance. 

Deferred tax assets and liabilities result from differences between the financial statement carrying amounts and the 
tax bases of existing assets and liabilities. The tax effect of temporary differences that give rise to deferred tax assets and 
liabilities as of December 31, 2018 and 2019 are as follows (in thousands): 

2018 

2019 

Deferred tax assets: 
Accrued expenses 
Alternative minimum tax and general business credits 
Stock option expense 
Other 
Loss carryforwards 

Total deferred tax assets 
Less valuation allowance 
Net deferred tax assets 

Deferred tax liabilities: 

Commodity swap contracts 
Depreciation and amortization 
Goodwill 
Investments in joint ventures and partnerships 

Total deferred tax liabilities 
Net deferred tax liabilities 

  $ 

 5,254   $ 
 6,801  
 11,210  
 1,998  
 106,957  
 132,220  
    (120,801) 
 11,419  

 4,899 
 6,651 
 9,254 
 1,456 
 107,722 
 129,982 
    (122,147)
 7,835 

 (2,751) 
 (2,672) 
 (1,650) 
 (4,346) 
 (11,419) 

  $ 

 —   $ 

 (998)
 (911)
 (1,910)
 (4,754)
 (8,573)
 (738)

As  of  December 31,  2019,  the  Company  had  federal,  state  and  foreign  net  operating  loss  carryforwards  of 
approximately $430.2 million, $298.3 million and $2.0 million, respectively. The Company’s federal, state and foreign 
net operating loss carryforwards will, if not utilized, expire beginning in 2026, 2020 and 2030, respectively. The Company 
also has federal tax credit carryforwards of $6.4 million that will expire beginning in 2026. Due to the change of ownership 
provisions of Internal Revenue Code Section 382, utilization of a portion of the Company’s net operating loss and tax 
credit carryforwards may be limited in future periods. 

In assessing the realizability of the net deferred tax assets, management considers whether it is more likely than not 
that some or all of the deferred tax assets will not be realized. The ultimate realization of deferred tax assets is dependent 
upon the generation of future taxable income during the periods in which those temporary differences become deductible. 
Management  considers  projected  future  taxable  income  and  tax  planning  strategies  in  making  this  assessment.  As  of 
December 31,  2018  and  2019,  the  Company  provided  a  valuation  allowance  of  $120.8  million,  and  $122.1  million, 
respectively,  to  reduce  the  net  deferred  tax  assets  due  to  uncertainty  surrounding  the  realizability  of  these  assets.  The 
decrease in the valuation allowance for the year ended December 31, 2018 of $0.0 million was primarily attributable to 
the valuation allowance offsetting foreign income, partially offset by an increase in federal losses without benefit. The 
increase in the valuation allowance for the year ended December 31, 2019 of $1.3 million was primarily attributable to an 
increase in federal losses without benefit. 

For  the year  ended  December 31,  2019,  the  Company  did  not  have  any  offshore  earnings  of  certain  non-U.S. 

subsidiaries which are permanently reinvested outside the United States. 

The Company does not recognize the impact of a tax position in its financial statements unless the position is more 
likely than not to be sustained, based on the technical merits of the position. The Company has unrecognized tax benefits 
of $41.5 million as of December 31, 2019 that, if recognized, would not result in a tax benefit since it would be fully offset 
with a valuation allowance. 

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CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

The  following  is  a  tabular  reconciliation  of  the  total  amounts  of  unrecognized  tax  benefits  for  the years  ended 

December 31, 2017, 2018, and 2019 (in thousands): 

Unrecognized tax benefit—December 31, 2017 
Gross increases—tax positions in current year 
Unrecognized tax benefit—December 31, 2018 
Gross increases—tax positions in current year 
Unrecognized tax benefit—December 31, 2019 

     $ 

$ 

 34,065 
 2,178 
 36,243 
 5,232 
 41,475 

The increase in the Company’s unrecognized tax benefits in the years ended December 31, 2018 and 2019 is primarily 

attributable to the portion of AFTC offset by the fuel tax the Company collected from its customers. 

ASC 740, Income Taxes, requires the Company to accrue interest and penalties where there is an underpayment of 
taxes based on the Company’s best estimate of the amount ultimately to be paid. The Company’s policy is to recognize 
interest accrued related to unrecognized tax benefits and penalties as income tax expense. In addition to the unrecognized 
tax benefits noted above, the Company accrued $0.0 million of interest expense as of December 31, 2018 and 2019. The 
Company recognized interest expense related to uncertain tax positions of $0.1 million, $0.0 million and $0.0 million for 
the years ended December 31, 2017, 2018, and 2019, respectively. 

During the year ended December 31, 2018, the IRS concluded its examination of the Company’s U.S. federal income 
tax returns for the year ended December 31, 2015 and did not propose any significant adjustments to the Company’s tax 
positions. 

The Company is subject to taxation in the United States and various states and foreign jurisdictions. The Company’s 
tax years for 2015 through 2019 are subject to examination by various tax authorities. While the Company is no longer 
subject to U.S. examination for years before 2016, and for state tax examinations for years before 2015, taxing authorities 
can adjust the net operating losses that arose in earlier years if and when the net operating losses reduce future income. In 
addition, the Company is required to indemnify SAFE&CEC S.r.l. for taxes that are imposed on CEC for pre-contribution 
tax periods. 

A number of years may elapse before an uncertain tax position is finally resolved. It is often difficult to predict the 
final outcome or the timing of resolution of an uncertain tax position, but the Company believes that its reserves for income 
taxes reflect the most probable outcomes. The Company adjusts the reserve, as well as the related interest and penalties, 
in light of changing facts and circumstances. The amount of penalties accrued is immaterial. Settlement of any particular 
position would usually require the use of cash and result in the reduction of the related reserve, or there could be a change 
in the amount of the Company’s net operating loss. The resolution of a matter would be recognized as an adjustment to 
the  provision  for  income  taxes  at  the  effective  tax  rate  in  the  period  of  resolution.  The  Company  does  not  expect  a 
significant increase or decrease in its uncertain tax positions within the next twelve months. 

Note 16 —Commitments and Contingencies 

Environmental Matters 

The Company is subject to federal, state, local and foreign environmental laws and regulations. The Company does 
not  anticipate  any  expenditures  to  comply  with  such  laws  and  regulations  that  would  have  a  material  impact  on  the 
Company’s consolidated financial position, results of operations or liquidity. The Company believes that its operations 
comply, in all material respects, with applicable federal, state, local and foreign environmental laws and regulations. 

97 

 
 
 
 
  
 
  
 
  
 
 
 
CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

Litigation, Claims and Contingencies 

The Company may become party to various legal actions that arise in the ordinary course of its business. The Company 
is  also  subject  to  audit  by  tax  and  other  authorities  for  varying  periods  in  various  federal,  state,  local  and  foreign 
jurisdictions, and disputes may arise during the course of these audits. It is impossible to determine the ultimate liabilities 
that the Company may incur resulting from any of these lawsuits, claims, proceedings, audits, commitments, contingencies 
and related matters or the timing of these liabilities, if any. If these matters were to ultimately be resolved unfavorably, it 
is possible that such an outcome could have a material adverse effect upon the Company’s consolidated financial position, 
results of operations, or liquidity. The Company does not, however, anticipate such an outcome and it believes the ultimate 
resolution of these matters will not have a material adverse effect on the Company’s consolidated financial position, results 
of operations, or liquidity. 

Long-Term Take-or-Pay Natural Gas Purchase Contracts 

The Company has entered into two long-term CNG supply contracts to purchase CNG, on a take-or-pay basis, expiring 
in December 2020 and June 2022, respectively. As of December 31, 2019, the fixed commitments under these contracts 
totaled approximately $0.7 million, $0.2 million, and $0.1 million for the years ending December 31, 2020, 2021 and 2022, 
respectively. 

The Company has entered into quarterly fixed price natural gas purchase contracts with take-or-pay commitments 
extending  through  June 2023.  As  of  December 31,  2019,  the  fixed  commitments  under  these  contracts  totaled 
approximately $5.0 million, $1.2 million, $1.2 million, and $1.2 million for the years ending December 31, 2020, 2021, 
2022, and 2023, respectively. 

Long-Term Natural Gas Supply Contract 

In June 2017, the Company’s subsidiary, NG Advantage, entered into an arrangement with BP for the supply, sale 
and transportation of CNG over a five -year period starting in December 2018 and expiring March 2022. The arrangement 
is  customary  and  ordinary  course  and  provides  for  the  payment  by  the  customer  of  a  nonrefundable  amount  of  $13.4 
million to reserve a specified volume of CNG transportation capacity under the arrangement, which was collected during 
the year  ended  December 31,  2017.  As  of  December 31,  2019,  the  commitments  for  the  specified  volume  under  this 
contract  were  estimated  to  be  approximately  $5.1  million,  $12.5  million,  and  $11.1  million  for  the years  ending 
December 31, 2020, 2021 and 2022, respectively. 

Note 17 —Leases 

New Lease Accounting Standard (Topic 842) 

On January 1, 2019, the Company adopted the new lease accounting standard (see Note 1 for more information on the 
standard and the effect of the adoption) whereby leases are now classified as either operating leases or finance leases. The 
Company’s operating leases are comprised of real estate for fueling stations, office spaces, warehouses, a LNG liquefaction 
plant, and office equipment, and its finance leases are comprised of vehicles. 

At the inception of a contract the Company assesses whether the contract is, or contains, a lease. The Company’s 
assessment is based on: (1) whether the contract involves the use of a distinct identified asset, (2) whether the Company 
obtains the right to substantially all the economic benefit from the use of the asset throughout the period, and (3) whether 
the Company has the right to direct the use of the asset. The commencement date of the contract is the date the lessor 
makes the underlying asset available for use by the lessee. 

Right-of-use (“ROU”) assets represent the Company’s right to use an underlying asset during the lease term and lease 
liabilities  represent  obligations  to  make  lease  payments  arising  from  the  lease.  ROU  assets  and  lease  liabilities  are 

98 

CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

recognized at the commencement date based on the net present value of fixed lease payments over the lease term. ROU 
assets also include any initial direct costs and advance lease payments made and exclude lease incentives. Lease liabilities 
also include terminal purchase options when deemed reasonably certain to exercise. The Company’s lease term includes 
options to extend when it is reasonably certain that it will exercise that option. The Company has elected not to recognize 
ROU assets and lease liabilities for short-term leases that have a term of 12 months or less; the Company recognizes lease 
expense for these leases on a straight-line basis over the lease term. 

As most of the Company’s operating leases do not have an implicit rate that can be readily determined, the Company 
uses its secured incremental borrowing rate for the same term as the underlying lease based on information available at 
lease commencement. For finance leases, the Company uses the rate implicit in the lease. 

The lease classification affects the expense recognition on the consolidated statements of operations. Operating lease 
charges  are  recorded  in  “Cost  of  sales,  exclusive  of  depreciation  and  amortization,”  and  “Selling,  general  and 
administrative” expense. Finance lease charges are split, whereby depreciation on assets under finance leases is recorded 
in  “Depreciation  and  amortization”  expense  and  an  implied  interest  component  is  recorded  in  “Interest  expense.” The 
expense recognition for operating leases and finance leases is substantially consistent with legacy accounting. 

The Company leased office space from the estate of T. Boone Pickens in Dallas, Texas. The Company incurred rent 
expense of $0.1 million in each of the years ended December 31, 2017, 2018 and 2019. The lease expired in October 2019. 

NG Advantage has provided residual value guarantees on leases of certain vehicles aggregating $1.4 million to the 
lessors. NG Advantage expects to owe these amounts in full and therefore they have been included in the measurement of 
the lease liabilities and ROU assets. 

Certain of the Company’s real estate leases contain variable lease payments, including payments based on a change 
in the index or gasoline gallon equivalents of natural gas dispensed at fueling stations. These variable lease payments 
cannot be determined at the commencement of the lease, are not included in the ROU assets and lease liabilities, and are 
recorded as a period expense when incurred. 

Lessee Accounting 

As of December 31, 2019, the Company’s finance and operating lease asset and liability balances were as follows (in 

thousands): 

Finance leases: 
Land, property and equipment, gross 
Accumulated depreciation 

Land, property and equipment, net 

Current portion of finance lease obligations 
Long-term portion of finance lease obligations 

Total finance lease liabilities 

Operating leases: 
Operating lease right-of-use assets (1) 

Current portion of operating lease obligations 
Long-term portion of operating lease obligations 

Total operating lease liabilities 

99 

2019 

 5,177 
 (2,134)
 3,043 

 615 
 2,715 
 3,330 

 28,627 

 3,359 
 26,206 
 29,565 

$ 

$ 

$ 

$ 

$ 

$ 

$ 

 
 
 
 
 
 
 
  
 
   
 
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
  
   
 
 
 
 
 
 
 
  
 
 
CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

The Company’s operating lease ROU assets are comprised of the following (in thousands): 

December 31, 2019 

Real estate for fueling stations 
LNG plant, office spaces and warehouses 
Office equipment 

Total operating lease right-of-use assets 

  $ 

  $ 

      Liabilities 

Assets 
 17,978   $ 
 10,624  
 25  
 28,627   $ 

 17,978 
 11,562 
 25 
 29,565 

The components of lease expense for finance and operating leases consisted of the following (in thousands): 

Finance leases: 
Depreciation on assets under finance leases 
Interest on lease liabilities 

Total finance leases expense 

Operating leases: 
Lease expense 
Lease expense on short-term leases 
Variable lease expense 
Sublease income 

Total operating leases expense 

Year Ended  
December 31, 2019 

  $ 

  $ 

  $ 

  $ 

 498 
 189 
 687 

 6,630 
 1,950 
 2,755 
 (206)
 11,129 

Supplemental information on finance and operating leases is as follows (dollars in thousands): 

Operating cash outflows from finance leases 
Operating cash outflows from operating leases 
Financing cash outflows from finance leases 

Assets obtained in exchange for new finance lease liabilities (1) 
ROU assets obtained in exchange for operating lease liabilities (1) 

Weighted-average remaining lease term - finance leases 
Weighted-average remaining lease term - operating leases 

Weighted-average discount rate - finance leases 
Weighted-average discount rate - operating leases 

Year Ended  
December 31, 2019 
 189 
 5,350 
 1,667 

  $ 
  $ 
  $ 

  $ 
  $ 

 519 
 31,861 

      December 31, 2019 

4.49 years 
11.10 years 

5.09% 
8.29% 

(1)  These amounts are excluded from the accompanying consolidated statements of cash flows as they are non-cash investing and financing activities. 

100 

 
 
 
 
 
 
 
 
 
 
 
     
 
  
  
 
  
  
 
 
 
 
 
 
 
     
 
 
  
 
   
 
  
 
 
 
 
 
  
   
 
  
 
  
 
  
 
 
 
 
 
 
     
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
 
 
 
  
  
 
CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

The  following  schedule  represents  the  Company’s  maturities  of  finance  and  operating  lease  liabilities  as  of 

December 31, 2019 (in thousands): 

Fiscal year: 
2020 
2021 
2022 
2023 
2024 
Thereafter 

Total minimum lease payments 
Less amount representing interest 
Present value of lease liabilities 

Lessor Accounting 

      Finance Leases       Operating Leases

  $ 

  $ 

 767   $ 
 679  
 560  
 462  
 1,026  
 314  
 3,808  
 (478) 
 3,330   $ 

 5,484 
 4,658 
 3,736 
 3,712 
 3,704 
 25,208 
 46,502 
 (16,937)
 29,565 

The  Company  leases  fueling  station  equipment  to  customers  that  contain  an  option  to  extend  and  an  end-of-term 
purchase option. Receivables from these leases are accounted for as finance leases, specifically sales-type leases, and are 
included in “Other receivables” and “Notes receivable and other long-term assets, net” in the accompanying consolidated 
balance sheets. 

The Company recognizes the net investment in the lease as the sum of the lease receivable and the unguaranteed 

residual value, both of which are measured at the present value using the interest rate implicit in the lease. 

During the year ended December 31, 2019, the Company recognized $0.1 million in “Interest income” on its lease 

receivables. 

The  following  schedule  represents  the  Company’s  maturities  of  lease  receivables  as  of  December 31,  2019  (in 

thousands): 

Fiscal year: 
2020 
2021 
2022 
2023 
2024 
Thereafter 

Total minimum lease payments 
Less amount representing interest 

Present value of lease receivables 

Legacy Lease Disclosures (Topic 840) 

$ 

$ 

 186 
 186 
 186 
 186 
 186 
 1,054 
 1,984 
 (935)
 1,049 

As  required  by  the  new  lease  accounting  standard,  certain  legacy  lease  disclosures  are  provided  below  as  of 

December 31, 2018, prior to adoption of the new standard. 

Operating Lease Commitments 

The  Company  leases  facilities,  including  the  land  for  its  LNG  production  plant  in  Boron,  California  and  certain 
equipment  under  noncancelable  operating  leases  expiring  at  various  dates  through  2038.  If  a  lease  has  a  fixed  and 

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CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

determinable escalation clause, or periods of rent holidays, the difference between rental expense and rent paid is included 
in “Accrued liabilities” and “Other long-term liabilities” in the accompanying condensed consolidated balance sheets. 

The  following  schedule  represents  the  Company’s  future  minimum  lease  obligations  under  all  noncancelable 

operating leases as of December 31, 2018 (in thousands): 

Fiscal year: 
2019 
2020 
2021 
2022 
2023 
Thereafter 

Total future minimum lease payments 

Rent expense totaled $6.6 million for the year ended December 31, 2018. 

Capital Lease Obligations and Receivables 

$ 

$ 

 6,340 
 4,332 
 3,311 
 2,409 
 2,300 
 13,214 
 31,906 

The  Company  leases  equipment  under  capital  leases  with  a  weighted-average  interest  rate  of  4.48%.  As  of 

December 31, 2018, future payments under these capital leases were as follows (in thousands): 

Fiscal year: 
2019 
2020 
2021 
2022 
2023 
Thereafter 

Total minimum lease payments 
Less amount representing interest 

Capital lease obligations 

Less current portion 

Capital lease obligations, less current portion 

$ 

$ 

 883 
 742 
 656 
 540 
 529 
 1,868 
 5,218 
 (749)
 4,469 
 (693)
 3,776 

The value of the equipment under capital leases as of December 31, 2018 was $6.1 million, with related accumulated 

amortization of $1.8 million. 

The Company also leases certain fueling station equipment to a certain customer under a sales-type lease at an interest 

rate of 13.5%. 

102 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
      
   
 
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
 
CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

As of December 31, 2018, future receipts under this lease were as follows (in thousands): 

Fiscal year: 
2019 
2020 
2021 
2022 
2023 
Thereafter 

Capital lease receivables 

Less amount representing interest 

Capital lease receivables, less current portion 

Note 18 —401(k) Plan 

$ 

$ 

 186 
 186 
 186 
 186 
 186 
 1,240 
 2,170 
 (1,080)
 1,090 

The Company has established a savings plan (“Savings Plan”) which is qualified under Section 401(k) of the Internal 
Revenue Code. Eligible employees may elect to make contributions to the Savings Plan through salary deferrals of up to 
90%  of  their  base  pay,  subject  to  Internal  Revenue  Code  limitations.  The  Company  may  also  make  discretionary 
contributions to the Savings Plans, subject to limitations. For each of the years ended December 31, 2017, 2018, and 2019 
the Company contributed approximately $1.3 million of matching contributions to the Savings Plan. 

Note 19 – Net Income (Loss) Per Share 

The  following  table  sets  forth  the  computations  of  basic  and  diluted  earnings  per  share  for  the  years  ended 

December 31, 2017, 2018 and 2019 (in thousands, except share and per share amounts): 

Net income (loss) 

   $

2017 
 (79,237)   $ 

2018 

2019 

 (3,790)   $

 20,421 

Weighted average common shares outstanding 
Dilutive effect of potential common shares from restricted stock units 
and stock options 
Weighted average common shares outstanding - diluted 
Basic income (loss) per share 
Diluted income (loss) per share 

  $
  $

   150,430,239  

   180,655,435  

   204,573,287 

 —  
   150,430,239  

 —  
   180,655,435  

 (0.53)  $ 
 (0.53)  $ 

 (0.02)  $
 (0.02)  $

 1,414,222 
   205,987,509 
 0.10 
 0.10 

The  following  potentially  dilutive  securities  have  been  excluded  from  the  diluted  net  income  (loss)  per  share 
calculations because their effect would have been antidilutive. Although these securities were antidilutive for these periods, 
they could be dilutive in future periods. 

2017 

2018 
 8,613,854     8,699,677     7,652,463 
    14,991,521     3,164,557     3,164,557 
 — 

 1,832,575     2,279,601   

2019 

(in shares) 
Stock options 
Convertibles notes 
Restricted stock units 

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CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

Note 20 —Related Party Transactions 

During the year ended December 31, 2019, the Company sold RINs to a related party for proceeds of $1.7 million in 

the ordinary course of business. 

During the year ended December 31, 2019, the Company paid a related party $0.9 million for expenses incurred in 
the ordinary course of business and swap settlements on commodity swap contracts (Note 8 and Note 9). The amount due 
to the related party as of December 31, 2019 is immaterial.  

Note 21 —Reportable Segments and Geographic Information 

Disclosures are required for certain information regarding operating segments, products and services, geographic areas 
of operation and major customers. Segment reporting is based upon the “management approach,” which assesses, how 
management organizes the Company’s operating segments for which separate financial information is (1) available and 
(2) evaluated regularly by the Chief Operating Decision Maker (“CODM”) in deciding how to allocate resources and in 
assessing performance. The Company’s CODM is its Chief Executive Officer. 

The Company operates in a single segment to sell natural gas. In making operating decisions, the CODM primarily 
considers consolidated financial information, accompanied by volumes delivered information. The assessment of operating 
results and the allocation of resources among the components of the business are made by the CODM and are based on 
gross margins and volumes delivered by market sector and volume type. Contracts are evaluated based on the economics 
of a mix of products and services for a customer. 

The table below presents the Company’s revenue, operating income (loss) and long-lived assets by geographic area 
(in thousands). Several of the Company’s functions, including marketing, engineering, and finance are performed at the 
corporate  level.  As  a  result,  significant  interdependence  and  overlap  exists  among  the  Company’s  geographic  areas. 
Geographic revenue data reflect internal allocations and are therefore subject to certain assumptions and the Company’s 
methodology. Accordingly, revenue, operating income (loss), and long-lived assets shown for each geographic area may 
not be the amounts that would have been reported if the geographic areas were independent of one another. Revenue by 
geographic area is categorized based on where services are rendered and finished goods are sold. Operating income (loss) 
by geographic area is categorized based on the location of the entity selling the finished goods or providing the services. 
Long-lived assets by geographic are categorized based on the location of the assets. 

2017 

2018 

2019 

Revenue: 

United States 
Canada 
Other 

Total revenue 

Operating income (loss): 

United States 
Canada 
Other 

Total operating income (loss) 

Long-lived assets: 
United States 
Canada 
Other 

Total long-lived assets 

104 

  $   316,756   $   337,531   $   338,549 
 5,516 
 — 
  $   341,599   $   346,419   $   344,065 

 6,846  
 17,997  

 8,888  
 —  

  $   (96,228)  $ 

 (9,495) 
 (28,724) 
  $  (134,447)  $ 

 3,548   $ 
 347  
 —  
 3,895   $ 

 10,805 
 (877)
 — 
 9,928 

  $   465,245   $   442,897   $   415,548 
 226 
 — 
  $   465,618   $   443,182   $   415,774 

 285  
 —  

 373  
 —  

 
 
 
 
 
 
 
 
 
 
 
     
     
     
    
       
       
   
 
  
  
  
 
  
  
  
 
  
    
  
    
  
   
 
  
  
  
 
  
  
  
 
  
    
  
    
  
   
 
  
  
  
 
  
  
  
 
CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

The Company’s goodwill and intangible assets as of December 31, 2017, 2018, and 2019 relate to its United States 

operations, and its subsidiaries, Clean Energy Cryogenics and NG Advantage (see Note 5). 

Note 22 —Concentrations 

During  the years  ended  December 31,  2017,  2018,  and  2019,  two,  two,  and  three  suppliers,  respectively,  each 

accounted for 10% or more of the Company’s natural gas expense related to CNG and LNG purchases. 

During the years ended December 31, 2017, 2018, and 2019, no single customer accounted for 10% or more of the 

Company’s total revenue. 

Note 23 —Subsequent Events 

In February 2020, the Company converted the principal and accrued interest under the November 2019 Convertible 
Note into common units of NG Advantage resulting in an increase in the Company’s controlling interest in NG Advantage 
to 93.2%. 

105 

 
Item 9.   Changes in and Disagreements with Accountants on Accounting and Financial Disclosure. 

None. 

Item 9A.   Controls and Procedures. 

Evaluation of Disclosure Controls and Procedures 

We maintain disclosure controls and procedures that are designed to ensure that information required to be disclosed 
in the reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported within the 
time periods specified in the rules and forms of the SEC, and that such information is accumulated and communicated to 
our  management,  including  our  Chief  Executive  Officer  and  Chief  Financial  Officer,  as  appropriate  to  allow  timely 
decisions regarding required disclosure. 

Our management carried out an evaluation, with the participation of our Chief Executive Officer and Chief Financial 
Officer (our principal executive and principal financial officers, respectively) of the effectiveness of our disclosure controls 
and procedures as of December 31, 2019, the end of the period covered by this report. Based on this evaluation, our Chief 
Executive Officer and Chief Financial Officer concluded that our disclosure controls and procedures were effective as of 
December 31, 2019. 

Changes in Internal Control Over Financial Reporting 

We regularly review and evaluate our internal control over financial reporting, and from time to time we may make 
changes  to our  processes  and  systems  to  improve  controls  or  increase  efficiencies.  Such  changes  may  include,  among 
others, implementing new and more efficient systems, consolidating activities, and migrating processes. 

There  were  no  changes  in  our  internal  control  over  financial  reporting  that  occurred  during  the  quarter  ended 
December 31, 2019 that have materially affected, or are reasonably likely to materially affect, our internal control over 
financial reporting. 

Management’s Report on Internal Control Over Financial Reporting 

Our management is responsible for establishing and maintaining adequate internal control over financial reporting (as 
defined in Rule 13a-15(f) under the Exchange Act) for our Company. Our management, with the participation of our Chief 
Executive Officer and Chief Financial Officer, assessed the effectiveness of our internal control over financial reporting 
as of December 31, 2019. In making this assessment, our management used the criteria set forth by the Committee of 
Sponsoring Organizations of the Treadway Commission in Internal Control—Integrated Framework (2013). Based on 
this assessment, our management concluded that, as of December 31, 2019, our internal control over financial reporting 
was effective. Our independent registered public accounting firm, KPMG LLP, has issued an attestation report on our 
internal control over financial reporting, which is included in Item 8. Financial Statements and Supplementary Data of this 
report. 

Inherent Limitations of Disclosure Controls and Procedures and Internal Control Over Financial Reporting 

In  designing  our  disclosure  controls  and  procedures  and  internal  control  over  financial  reporting,  management 
recognizes  that  any  controls  and  procedures,  no  matter  how  well-designed  and  operated,  can  provide  only  reasonable 
assurance of achieving the desired control objectives. In addition, the design of our controls and procedures must reflect 
the fact that there are resource constraints, and management necessarily applies its judgment in evaluating the benefits of 
possible controls and procedures relative to their costs. Because of these inherent limitations, our disclosure and internal 
controls may not prevent or detect all instances of fraud, misstatements or other control issues. In addition, projections of 
any evaluation of the effectiveness of disclosure or internal controls to future periods are subject to risks, including, among 
others,  that  controls  may  become  inadequate  because  of  changes  in  conditions  or  that  compliance  with  policies  or 
procedures may deteriorate. 

106 

Item 9B.   Other Information. 

None.  

107 

 
 
Item 10.   Directors, Executive Officers and Corporate Governance. 

PART III 

We have adopted a written code of ethics that applies to our employees, officers and directors, including our principal 
executive  officer,  principal  financial  officer,  principal  accounting  officer  or  controller,  or  persons  performing  similar 
functions.  A current copy of the code is posted under “Corporate Governance” on the Investor Relations section of our 
website, www.cleanenergyfuels.com.  To the extent required by applicable rules adopted by the SEC and the Nasdaq Stock 
Market LLC, we intend to disclose future amendments to certain provisions of the code, or waivers of such provisions 
granted to executive officers and directors, in this location on our website at www.cleanenergyfuels.com. 

The remaining information required by this item is incorporated by reference to the disclosure under (i) “Proposal 1: 
Election of Directors-General,” “Proposal 1: Election of Directors-Director Nominees” and “Information About Executive 
Officers,” as it relates to the information about our directors, director nominees and executive officers required by Item 401 
of Regulation S-K promulgated by the SEC, (ii) “Other Matters-Delinquent Section 16(a) Reports,” and (iii) “Corporate 
Governance-Board  and  Committee  Composition”  and  “Corporate  Governance-Board  Committees,”  as  it  relates  to  the 
information about the audit committee of our Board of Directors required by Item 407(d)(4) and (d)(5) of Regulation S-K 
promulgated by the SEC, in each case in our definitive proxy statement for our 2020 annual meeting of stockholders to be 
filed with the SEC within 120 days after the end of our fiscal year ended December 31, 2019. 

Item 11.   Executive Compensation. 

The information required by this item is incorporated by reference to the disclosure under “Compensation Discussion 
and Analysis,”  “Executive  Compensation,”  “Director  Compensation”  and  “Compensation  Committee  Report,”  in  each 
case in our definitive proxy statement for our 2020 annual meeting of stockholders to be filed with the SEC within 120 days 
after the end of our fiscal year ended December 31, 2019. 

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

The information required by this item is incorporated by reference to the disclosure under “Security Ownership of 
Certain Beneficial Owners and Management” and “Equity Compensation Plans-Securities Authorized for Issuance Under 
Equity Compensation Plans,” in each case in our definitive proxy statement for our 2020 annual meeting of stockholders 
to be filed with the SEC within 120 days after the end of our fiscal year ended December 31, 2019. 

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

The information required by this item is incorporated by reference to the disclosure under (i) “Corporate Governance-
Board  and  Committee  Composition”,  as  it  relates  to  the  information  about  director  independence  required  by 
Item 407(a) of Regulation S-K promulgated by the SEC, and (ii) “Certain Relationships and Related Party Transactions,” 
in each case in our definitive proxy statement for our 2020 annual meeting of stockholders to be filed with the SEC within 
120 days after the end of our fiscal year ended December 31, 2019. 

Item 14.   Principal Accountant Fees and Services. 

The information required by this item is incorporated by reference to the disclosure under “Proposal 2: Ratification 
of Appointment of Independent Registered Public Accounting Firm-Independent Registered Public Accounting Firm Fees 
and  Services”  and  “Proposal 2:  Ratification  of  Appointment  of  Independent  Registered  Public  Accounting  Firm-Pre-
Approval  Policies  and  Procedures,”  in  each  case  in  our  definitive  proxy  statement  for  our  2020  annual  meeting  of 
stockholders to be filed with the SEC within 120 days after the end of our fiscal year ended December 31, 2019. 

108 

 
 
Item 15.   Exhibits and Financial Statement Schedules. 

(a)(1) Consolidated Financial Statements 

PART IV 

The following items are filed in Item 8. Financial Statements and Supplementary Data of this report: 

Report of Independent Registered Public Accounting Firm 
Consolidated Balance Sheets 
Consolidated Statements of Operations 
Consolidated Statements of Comprehensive Income (Loss) 
Consolidated Statements of Stockholders’ Equity 
Consolidated Statements of Cash Flows 
Notes to Consolidated Financial Statements 

(a)(2) Financial Statement Schedules 

The financial statement schedule set forth below is filed as a part of this report. All other schedules have been omitted 

because they are not required, not applicable, or the required information is otherwise included. 

Schedule II - Valuation and Qualifying Accounts 

(In thousands) 

      Allowances for       Allowance for 
  Doubtful Trade  Doubtful Notes 

Balance as of December 31, 2016 
Charges (benefit) to operations 
Deductions 

Balance as of December 31, 2017 
Charges (benefit) to operations 
Deductions 

Balance as of December 31, 2018 
Charges (benefit) to operations 
Deductions 

Balance as of December 31, 2019 

(a)(3) Exhibits 

  $ 

  $ 

Receivables 

 1,063   $ 
 395  
 (182) 
 1,276  
 1,169  
 (526) 
 1,919  
 908  
 (415) 
 2,412   $ 

Receivables 
 1,230 
 3,344 
 (30)
 4,544 
 — 
 (381)
 4,163 
 931 
 (1,763)
 3,331 

The  information  required  by  this  Item 15(a)(3) is  set  forth  on  the  exhibit  index,  which  immediately  precedes  the 

signature page to this report and is incorporated herein by reference. 

Item 16.   Form 10-K Summary. 

We have elected not to provide summary information. 

109 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
 
  
  
 
  
  
 
  
  
 
  
  
 
  
  
 
  
  
 
  
  
 
 
 
Exhibit 
Number   

Description 

2.11§ 

  Asset Purchase Agreement dated 

Incorporated herein by reference to the following filings: 

  Form 
  Filed as Exhibit 2.11 to the Current Report 

Filed on 

  March 1, 2017 

EXHIBIT INDEX 

February 27, 2017, by and among Clean 
Energy Renewable Fuels, LLC, BP 
Products North America, Inc. and, solely 
with respect to Article VIII thereof, Clean 
Energy and BP Corporation North 
America, Inc. 

on Form 8-K. 

2.12§ 

Investment Agreement dated 
November 26, 2017, by and between Clean 
Energy and Landi Renzo S.p.A. 

  Filed as Exhibit 2.12 to the Current Report 

on Form 8-K. 

  November 27, 

2017 

3.1 

  Restated Certificate of Incorporation, as 

  Filed as Exhibit 3.1 to the Quarterly Report 

  August 7, 2018 

amended by the Certificate of Amendment 
to the Restated Certificate of Incorporation 
of the Registrant dated May 28, 2010, as 
further amended by the Certificate of 
Amendment to the Restated Certificate of 
Incorporation of the Registrant dated 
May 8, 2014. 

on Form 10-Q for the quarter ended 
June 30, 2018. 

3.1.1 

  Certificate of Amendment to the Restated 

  Filed as Exhibit 3.1.1 to the Quarterly 

  August 7, 2018 

Certificate of Incorporation of Clean 
Energy Fuels Corp. dated June 8, 2018. 

Report on Form 10-Q for the quarter ended 
June 30, 2018. 

3.2 

  Amended and Restated Bylaws. 

  Filed as Exhibit 3.2 to the Current Report 

  February 23, 

on Form 8-K. 

2011 

3.2.1 

  Amendment No. 1 to Amended and 

  Filed as Exhibit 3.2.1 to the Current Report 

  February 27, 

Restated Bylaws. 

on Form 8-K. 

2014 

4.1 

  Specimen Common Stock Certificate. 

  Filed as Exhibit 4.1 to the Registration 
Statement on Form S-1, as amended. 

  March 27, 2007 

4.10 

  Form of Replacement Note issued by the 

  Filed as Exhibit 4.9 to the Current Report 

  June 18, 2013 

Registrant. 

on Form 8-K. 

4.11* 

  Description of Clean Energy Fuels Corp. 

Capital Stock. 

10.4+ 

  Form of Indemnification Agreement. 

  Filed as Exhibit 10.4 to the Registration 
Statement on Form S-1, as amended. 

  March 27, 2007 

10.7+ 

  2006 Equity Incentive Plan—Form of 

  Filed as Exhibit 99.5 to the Registration 

  August 14, 2007 

Notice of Stock Option Grant and Stock 
Option Agreement. 

Statement on Form S-8. 

10.12† 

  Ground Lease dated November 3, 2006 
among the Registrant, Clean Energy 
Construction and U.S. Borax, Inc. 

  Filed as Exhibit 10.25 to the Registration 
Statement on Form S-1, as amended. 

  May 24, 2007 

110 

      
     
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit 
Number   

Description 

10.16+ 

  2006 Equity Incentive Plan—Form of 

Stock Award Agreement. 

Incorporated herein by reference to the following filings: 

  Form 
  Filed as Exhibit 10.2 to the Quarterly 

Filed on 

  May 15, 2008 

Report on Form 10-Q for the quarter ended 
March 31, 2008. 

10.63+ 

  Amended and Restated 2006 Equity 

Incentive Plan. 

  Filed as Exhibit 10.63 to the Annual Filing 
on Form 10-K for the fiscal year ended 
2011. 

  March 12, 2012 

10.64+ 

  Amended and Restated 2006 Equity 

Incentive Plan—Form of Notice of Stock 
Unit Award and Stock Unit Agreement. 

  Filed as Exhibit 10.64 to the Annual Filing 
on Form 10-K for the fiscal year ended 
2011. 

  March 12, 2012 

10.80 

  Lease dated March 18, 2013, between The 
Irvine Company LLC and Clean Energy. 

  Filed as Exhibit 10.80 to the Quarterly 

  May 8, 2013 

Report on Form 10-Q for the quarter ended 
March 31, 2013. 

10.81 

10.83 

  First Amendment to Lease dated April 17, 
2013, between The Irvine Company LLC 
and Clean Energy. 

  Filed as Exhibit 10.81 to the Quarterly 

  May 8, 2013 

Report on Form 10-Q for the quarter ended 
March 31, 2013. 

  Note Purchase Agreement dated June 14, 
2013, among the Registrant, Chesapeake 
NG Ventures Corporation, Boone Pickens 
and Green Energy Investment Holdings, 
LLC. 

  Filed as Exhibit 10.83 to the Current 

  June 18, 2013 

Report on Form 8-K. 

10.84 

  Loan Agreement dated June 14, 2013, 

  Filed as Exhibit 10.84 to the Current 

  June 18, 2013 

between the Registrant and Green Energy 
Investment Holdings, LLC. 

Report on Form 8-K. 

10.85 

  Loan Agreement dated June 14, 2013, 

  Filed as Exhibit 10.85 to the Current 

  June 18, 2013 

between the Registrant and Boone Pickens. 

Report on Form 8-K. 

10.86 

10.87 

  Registration Rights Agreement dated 
June 14, 2013, among the Registrant, 
Boone Pickens and Green Energy 
Investment Holdings, LLC. 

  Filed as Exhibit 10.86 to the Current 

  June 18, 2013 

Report on Form 8-K. 

  Marketing Agreement dated June 28, 2013, 
among Clean Energy, Westport Power Inc. 
and Westport Fuel Systems Inc. 

  Filed as Exhibit 10.87 to the Current 

  June 28, 2013 

Report on Form 8-K. 

10.90+ 

  Clean Energy Fuels Corp. Employee Stock 

  Filed as Exhibit Annex A to Schedule 14A 

  March 28, 2013 

Purchase Plan. 

Definitive Proxy Statement. 

10.92† 

  Liquefied Natural Gas Fueling Station and 

  Filed as Exhibit 10.92 to the Annual 

  February 27, 

LNG Master Sales Agreement dated 
August 2, 2010, between Clean Energy and 
Pilot Travel Centers, LLC. 

Report on Form 10-K for the year ended 
December 31, 2013. 

2014 

10.94 

  Form of Common Unit Purchase 

  Filed as Exhibit 10.94 to the Current 

  October 15, 

Agreement dated October 14, 2014, among 

Report on Form 8-K. 

2014 

111 

      
     
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit 
Number   

Description 

  Form 

Filed on 

Incorporated herein by reference to the following filings: 

NG Advantage, LLC, Clean Energy and 
the other investors named therein. 

10.103+    Amended and Restated 2006 Equity 

  Filed as Exhibit 10.103 to the Quarterly 

  May 11, 2015 

Incentive Plan - Form of Notice of Stock 
Unit Award. 

Report on Form 10‑Q for the quarter ended 
March 31, 2015. 

10.104+    2006 Equity Incentive Plan - Form of 

  Filed as Exhibit 10.104 to the Quarterly 

  May 11, 2015 

Notice of Stock Option Grant. 

Report on Form 10‑Q for the quarter ended 
March 31, 2015. 

10.106+    Amended and Restated Employment 

  Filed as Exhibit 10.106 to the Current 

  December 31, 

Agreement dated December 31, 2015, 
between the Registrant and Andrew J. 
Littlefair. 

Report on Form 8‑K. 

2015 

10.107+    Amended and Restated Employment 

  Filed as Exhibit 10.107 to the Current 

  December 31, 

Agreement dated December 31, 2015, 
between the Registrant and Robert M. 
Vreeland. 

Report on Form 8‑K. 

2015 

10.108+    Amended and Restated Employment 

  Filed as Exhibit 10.108 to the Current 

  December 31, 

Agreement dated December 31, 2015, 
between the Registrant and Mitchell W. 
Pratt. 

Report on Form 8‑K. 

2015 

10.109+    Amended and Restated Employment 

  Filed as Exhibit 10.109 to the Current 

  December 31, 

Agreement dated December 31, 2015, 
between the Registrant and Barclay F. 
Corbus. 

Report on Form 8‑K. 

2015 

10.111 

  Promissory Note dated February 29, 2016, 
between the Registrant, Clean Energy and 
PlainsCapital Bank. 

  Filed as Exhibit 10.111 to the Annual 

  March 3, 2016 

Report on Form 10-K for the year ended 
December 31, 2015. 

10.112 

  Pledged Account Agreement dated 

  Filed as Exhibit 10.112 to the Annual 

  March 3, 2016 

February 29, 2016, between Clean Energy, 
PlainsCapital Bank and PlainsCapital 
Bank - Wealth Management and Trust. 

Report on Form 10-K for the year ended 
December 31, 2015. 

10.113 

  Loan and Security Agreement dated 

  Filed as Exhibit 10.113 to the Annual 

  March 3, 2016 

February 29, 2016, between the Registrant, 
Clean Energy and PlainsCapital Bank. 

Report on Form 10-K for the year ended 
December 31, 2015. 

10.114+    Clean Energy Fuels Corp. 2016 

  Filed as Exhibit 10.114 to the Current 

  May 27, 2016 

Performance Incentive Plan. 

Report on Form 8-K. 

10.116 

  Loan Modification Agreement dated 

  Filed as Exhibit 10.116 to the Quarterly 

  November 3, 

October 31, 2016, between the Registrant, 
Clean Energy and PlainsCapital Bank. 

Report on Form 10-Q for the quarter ended 
September 30, 2016. 

2016 

112 

      
     
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit 
Number   

Description 

10.117+    Clean Energy Fuels Corp. 2016 

Incorporated herein by reference to the following filings: 

  Form 
  Filed as Exhibit 10.117 to the Quarterly 

Filed on 

  August 9, 2016 

Performance Incentive Plan-Form of 
Notice of Stock Option Grant and Terms 
and Conditions of Nonqualified Stock 
Option. 

Report on Form 10-Q for the quarter ended 
June 30, 2016. 

10.118+    Clean Energy Fuels Corp. 2016 

  Filed as Exhibit 10.118 to the Quarterly 

  August 9, 2016 

Performance Incentive Plan-Form of 
Notice of Stock Unit Award and Terms and 
Conditions of Stock Unit Award. 

Report on Form 10-Q for the quarter ended 
June 30, 2016. 

10.120+    Form of Option Surrender Agreement. 

  Filed as Exhibit 10.120 to the Quarterly 

  May 4, 2017 

Report on Form 10-Q for the quarter ended 
March 31, 2017. 

10.122 

  Series A Preferred Units Issuance 

  Filed as Exhibit 10.122 to the Quarterly 

  November 2, 

Agreement dated July 14, 2017, by and 
between Clean Energy and NG Advantage 
LLC. 

Report on Form 10-Q for the quarter ended 
September 30, 2017. 

2017 

10.125 

  Stock Purchase Agreement dated May 9, 
2018, between the Registrant and Total 
Market Services, S.A. 

  Filed as Exhibit 10.125 to the Quarterly 

  May 10, 2018 

Report on Form 10-Q for the quarter ended 
March 31, 2018. 

10.126 

  Voting Agreement dated May 9, 2018, 
among the Registrant, Total Market 
Services, S.A., and the directors and 
officers of the Registrant signatory. 

  Filed as Exhibit 10.126 to the Quarterly 

  May 10, 2018 

Report on Form 10-Q for the quarter ended 
March 31, 2018. 

10.127 

  Form of Registration Rights Agreement 

  Filed as Exhibit 10.127 to the Quarterly 

  May 10, 2018 

dated June 13, 2018, between the 
Registrant and Total Market Services, S.A. 

Report on Form 10-Q for the quarter ended 
March 31, 2018. 

10.128 

  Common Unit Purchase Agreement, dated 

  Filed as Exhibit 1.128 to the Annual 

  March 12, 2019 

October 1, 2018, by and among NG 
Advantage, LLC, Clean Energy and the 
other investors named therein. 

Report on Form 10-K for the year ended 
December 31, 2018. 

10.129 

  Term Credit Agreement, dated as of 

  Filed as Exhibit 1.129 to the Annual 

  March 12, 2019 

January 2, 2019, between the Registrant 
and Société Générale. 

Report on Form 10-K for the year ended 
December 31, 2018. 

10.130 

  Credit Support Agreement, dated as of 
January 2, 2019, by and between the 
Registrant and Total Holdings USA, Inc. 

  Filed as Exhibit 1.130 to the Annual 

  March 12, 2019 

Report on Form 10-K for the year ended 
December 31, 2018. 

10.131 

  Note Purchase Agreement, dated 
February 15, 2019, between NG 
Advantage, LLC and Clean Energy. 

  Filed as Exhibit 10.131 to the Quarterly 

  May 9, 2019 

Report on Form 10-Q for the quarter ended 
March 31, 2019. 

10.132 

  Convertible Promissory Note, dated 
February 15, 2019, between NG 
Advantage, LLC and Clean Energy. 

  Filed as Exhibit 10.132 to the Quarterly 

  May 9, 2019 

Report on Form 10-Q for the quarter ended 
March 31, 2019. 

113 

      
     
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit 
Number   

Description 

  Form 

Filed on 

Incorporated herein by reference to the following filings: 

10.133 

  Form of Note Purchase Agreement, 

  Filed as Exhibit 10.133 to the Quarterly 

  August 8, 2019 

Convertible Promissory Note and Warrant 
to Purchase Common Units, dated June 28, 
2019, between NG Advantage, LLC and 
Clean Energy. 

Report on Form 10-Q for the quarter ended 
June 30, 2019. 

10.134*    Form of Note Purchase Agreement, 

Convertible Promissory Note and Warrant 
to Purchase Common Units, dated 
November 27, 2019, between NG 
Advantage, LLC and Clean Energy. 

21.1* 

  Subsidiaries. 

23.1* 

  Consent of Independent Registered Public 

Accounting Firm KPMG LLP. 

24.1* 

  Power of Attorney (included on the 

signature page to this report). 

31.1* 

  Certification of Andrew J. Littlefair, 

President and Chief Executive Officer, 
pursuant to Rule 13a-14(a) or 15d-14(a) of 
the Securities Exchange Act of 1934, as 
adopted pursuant to Section 302 of the 
Sarbanes- Oxley Act of 2002. 

31.2* 

  Certification of Robert M. Vreeland, Chief 

Financial Officer, pursuant to Rule 
13a-14(a) or 15d-14(a) of the Securities 
Exchange Act of 1934, as adopted pursuant 
to Section 302 of the Sarbanes-Oxley Act 
of 2002. 

32.1** 

  Certification pursuant to 18 U.S.C. Section 
1350, as adopted pursuant to Section 906 
of the Sarbanes-Oxley Act of 2002, 
executed by Andrew J. Littlefair, President 
and Chief Executive Officer, and Robert 
M. Vreeland Chief Financial Officer. 

99.1 

  Natural Gas Hedge Policy dated May 29, 

  Filed as Exhibit 99.1 to the Current Report 

  June 20, 2008 

2008. 

on Form 8-K. 

101 

  The following materials from the 

Registrant’s Annual Report on Form 10-K 
for the year ended December 31, 2019, 
formatted in XBRL (eXtensible Business 
Reporting Language): 
(i) Consolidated Balance Sheets; 

(ii) Consolidated Statements of Operations;  

114 

      
     
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit 
Number   

Description 

  Form 

Filed on 

Incorporated herein by reference to the following filings: 

(iii) Consolidated Statements of 
Comprehensive Income (Loss); 

(iv) Consolidated Statements of 
Stockholders’ Equity; 

(v) Consolidated Statements of Cash 
Flows; and 

(vi) Notes to Consolidated Financial 
Statements. 

§  Schedules and exhibits omitted pursuant to Item 601(b)(2) of Regulation S-K promulgated by the SEC. 

†  Portions of this exhibit have been omitted pursuant to the grant of a request for confidential treatment and the non-

public information has been filed separately with the SEC. 

*  Filed herewith. 

**  Furnished herewith. 

+  Management contract or compensatory plan or arrangement. 

115 

      
     
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly 

caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. 

SIGNATURES 

CLEAN ENERGY FUELS CORP. 

By: 

/s/ ANDREW J. LITTLEFAIR 
Andrew J. Littlefair 
President and Chief Executive Officer 

Date: March 10, 2020 

POWER OF ATTORNEY 

IN WITNESS WHEREOF, each person whose signature appears below constitutes and appoints Andrew J. Littlefair 
and Robert M. Vreeland as his true and lawful agent, proxy and attorney-in-fact, each acting alone, with full power of 
substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to (i) act on and sign 
any amendments to this report, with exhibits thereto and other documents in connection therewith, (ii) act on and sign such 
certificates, instruments, agreements and other documents as may be necessary or appropriate in connection therewith, and 
in each case file the same with the Securities and Exchange Commission, hereby approving, ratifying and confirming all 
that such agent, proxy and attorney-in-fact or any of his substitutes may lawfully do or cause to be done by virtue thereof. 

116 

 
 
 
 
 
 
 
 
 
 
 
Pursuant  to  the  requirements  of  the  Securities  Exchange  Act  of  1934,  this  report  has  been  signed  below  by  the 

following persons on behalf of the registrant and in the capacities and on the dates indicated. 

Signature 

Title 

Date 

/s/ ANDREW J. LITTLEFAIR 
Andrew J. Littlefair 

/s/ ROBERT M. VREELAND 
Robert M. Vreeland 

/s/ STEPHEN A. SCULLY 
Stephen A. Scully 

President, Chief Executive Officer (Principal 
Executive Officer) and Director 

  March 10, 2020 

Chief Financial Officer (Principal Financial Officer 
and Principal Accounting Officer) 

  March 10, 2020 

  Chairman of the Board and Director 

  March 10, 2020 

/s/ LIZABETH ARDISANA 
Lizabeth Ardisana 

  Director 

/s/ PHILIPPE CHARLEUX 
Philippe Charleux 

  Director 

/s/ JOHN S. HERRINGTON 
John S. Herrington 

  Director 

/s/ JAMES C. MILLER III 
James C. Miller III 

  Director 

/s/ PHILIPPE MONTANTÊME 
Philippe Montantême 

  Director 

/s/ JAMES E. O’CONNOR 
James E. O’Connor 

  Director 

/s/ KENNETH M. SOCHA 
Kenneth M. Socha 

  Director 

/s/ VINCENT C. TAORMINA 
Vincent C. Taormina 

  Director 

  March 10, 2020 

  March 10, 2020 

  March 10, 2020 

  March 10, 2020 

  March 10, 2020 

  March 10, 2020 

  March 10, 2020 

  March 10, 2020 

117