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Clean Energy Fuels Corp.
Annual Report 2020

CLNE · NASDAQ Energy
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FY2020 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, 2020 
or 

For the transition period from                      to 

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) 

Common stock, $0.0001 par value per share 

CLNE 

  Name of each exchange on which registered 
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 (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such 
files). Yes  ☒     No  ☐ 

Indicate by check mark 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 has filed a report on and attestation to its management’s assessment of the effectiveness of its internal 
control  over  financial  reporting  under  Section  404(b)  of  the  Sarbanes  Oxley  Act  (15  U.S.C.  7262(b))  by  the  registered  public  accounting  firm  that 
prepared or issued its audit report. ☒ 

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 30, 2020, the last business day of the registrant’s 
most recently completed second fiscal quarter, was approximately $320,768,899. 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 3, 2021, there were 199,221,936 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 2021 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, 2020 

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. 

  (Reserved) 
  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 

Page 

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1 

 
 
 
 
  
      
 
 
 
 
 
  
 
  
 
 
  
 
  
 
 
 
 
 
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. The absence of these words, however, 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, our future financial and operating 
performance, our growth strategies, including expectations regarding our delivery and sales of renewable natural gas and 
sale of U.S. federal, state and local government credits, and anticipated trends in our industry and our business. 

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 
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,” the “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  Clean  Energy™  and  Clean  Energy 
Renewables™. 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. 

2 

 
 
Item 1.   Business. 

Overview 

PART I 

Clean  Energy  Fuels  Corp.,  a  Delaware  corporation,  is  a  leading  renewable  energy  company  focused  on  the 
procurement and distribution of renewable natural gas (“RNG”) and conventional natural gas, in the form of compressed 
natural gas (“CNG”) and liquefied natural gas (“LNG”), for the United States and Canadian transportation markets.  RNG, 
which  is  delivered  as  either  CNG  or  LNG,  is  created  by  the  recovery  and  processing  of  naturally  occurring, 
environmentally detrimental waste methane (“biogas”) from non-fossil fuel sources - such as dairy and other livestock 
waste and landfills - for beneficial use as a replacement for fossil-based transportation fuels. Methane is one of the most 
potent climate-harming greenhouse gasses (“GHG”) with a comparative impact on global warming that is about 25 times 
more powerful than that of carbon dioxide. We are focused on developing, owning, and operating dairy and other livestock 
waste RNG projects and supplying RNG (procured from our own projects or from third parties) to our customers in the 
heavy and medium -duty commercial transportation sector. We have participated in the alternative vehicle fuels industry 
for over 20 years and believe we are the largest U.S. provider of RNG for commercial transportation. We are in a unique 
position because the valuable Environmental Credits (as defined below) are generated by the party that dispenses RNG 
into vehicle fuel tanks, and we believe we have access to more dispensers than any other market participant. 

We believe we were the first organization to supply RNG for vehicle fuel use in the U.S., and sales of our RNG for 
such purpose have increased from 13.0 million gasoline gallon equivalents (“GGEs”) in 2013 to 153.3 million GGEs in 
2020. Overall, we are also the country’s leading provider of the cleanest fuels for the commercial transportation market, 
based on  both the  number of  stations we operate  and  the  amount  of GGEs delivered  of  RNG,  CNG  and  LNG, which 
amounted to a total of 382.5 GGEs in 2020.  With the Company’s focus on RNG, our sales of RNG have grown from 12% 
of our vehicle fuel sales in 2013 to 74% of our vehicle fuel sales in 2020. We believe that during 2020 we provided 61% 
and 45% of the RNG used for transportation fuel in California and the United States, respectively.   

As  a  comprehensive  clean  energy  solutions  provider,  we  also  design  and  build,  as  well  as  operate  and  maintain 
(“O&M”), public and private vehicle fleet customer stations in the United States and Canada; sell and service compressors 
and other equipment used in RNG production and at fueling stations; transport and sell our fuels via “virtual” natural gas 
pipelines and interconnects; sell U.S. federal, state and local government credits (collectively, “Environmental Credits”) 
we generate by selling RNG as a vehicle fuel; and obtain federal, state and local tax credits, grants and incentives. 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 our vehicle fuels for the foreseeable future. 

Commercial transportation, including heavy-duty trucking, generates a significant portion of the emissions of overall 
carbon dioxide and other climate-harming GHGs, and transitioning this sector to low and negative carbon fuels is a critical 
step towards reducing the overall global GHG emissions. According to the Global Carbon Project’s Global Carbon Budget 
published in December 2019, 36.6 billion metric tons of carbon dioxide were emitted globally in 2018, of which 7.0 billion 
metric  tons,  or  19%,  came  from  the  transportation  sector.  There  is  a  global  demand  for  reducing  GHG  emissions,  as 
evidenced by 96% of the world’s countries having committed to the Paris Agreement according to The United Nations 
Framework  Convention  in  Climate  Change,  86% of  S&P 500  companies  focusing  on sustainability  metrics,  including 
GHG emissions, according to the Governance & Accountability Institute’s Flash Report published on May 16, 2019 and 
81% of global respondents from The Conference Board Global Consumer Confidence Survey, conducted in collaboration 
with Nielsen and published on September 11, 2018, indicating they want companies to better address environmental issues. 

Biogas, the primary source of RNG, is produced by microbes as they break down organic matter in the absence of 
oxygen. Our sources of commercial scale biogas are anaerobic digester gas (“ADG”), which is produced inside an airtight 
tank used to breakdown organic matter such as dairy and other livestock waste, and landfill gas (“LFG”), which is produced 
by the decomposition of organic waste at landfills. 

3 

Given the potential growth and positive environmental impact of RNG, our mission is to obtain as much RNG supply 
as possible. To that end we are pursuing development and ownership of dairy and other livestock waste ADG projects on 
our own and with partners including Total S.E. (“Total”) and BP Products North America (“bp”).  Further, we enter long-
term RNG supply offtake agreements with well-known third parties that own RNG production facilities.  Because our 
business transforms waste methane into a renewable source of energy, our RNG generates valuable Environmental Credits 
under federal and state initiatives. 

Depending  on  the  source,  the  California  Air  Resources  Board  (“CARB”)  has  determined  that  RNG  can  have  a 
significantly negative carbon intensity score, enabling our customers to achieve a net carbon negative emissions profile.  

FUEL CARBON INTENSITY SCORES

(100p/ML)

200

100

0

(100)

(200)

(300)

(400)

164

56

81

0

Diesel

75

E
V
T
A
G
E
N
N
O
B
R
A
C

(346)

Hydrogen

Electricity

RNG

California Air Resources Board “Current Fuel Pathways” 2018 – 2020 (5th-95th percentile) 

At present, we believe the best use of RNG is as a replacement for fossil-based fuel in the transportation sector.  We 
deliver RNG to the transportation market through 540 fueling stations we own, operate or supply in 39 states and the 
District of Columbia in the U.S., including over 200 stations in California. Critically, to generate valuable Environmental 
Credits the RNG must be placed in vehicle fuel tanks. We believe our stations and customer relationships allow us to 
deliver substantially more RNG to vehicle operators than any other participant in the market – we calculate that we have 
access to more fueling stations and vehicle fleets than all our competitors combined. As of December 31, 2020, we serve 
over 1,000 fleet customers operating over 48,000 vehicles on our fuels. We believe we are the only company in the U.S. 
that provides RNG vehicle fuel at scale in California and nationally. 

Longer term, we expect to also be able to provide hydrogen fuel to vehicle fleets.  As operators deploy more hydrogen 
powered vehicles, we can modify our fueling stations to reform our RNG and deliver clean hydrogen to customers.  We 
also have the capability to add electric vehicle charging at our station sites, and we believe our RNG can be used to generate 
clean electricity to power electric vehicles. 

Our Principal 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.” 

4 

 
 
 
 
 
RNG, CNG and LNG Sales.     

•  Unlike other renewables, RNG is easily stored, distributed, and replenished.  RNG can be injected into the 
existing natural  gas  distribution network  and  delivered  to vehicle  fuel  stations  and  liquefaction facilities.  
While  other  sources  of  green  and  renewable  energy  require  significant  infrastructure  buildout  to  be 
implemented,  RNG  is  affordably  and  easily  used  in  existing  infrastructure  and  vehicles  today.    Further, 
CARB has determined that RNG holds the lowest carbon intensity of any on-road vehicle fuel, including 
fully renewable electric from solar and wind.   

•  CNG is RNG or conventional natural gas that is compressed and dispensed in gaseous form. CNG is typically 
delivered by obtaining RNG or conventional natural gas from the pipeline and then compressing and storing 
it at a fueling station and dispensing it directly into a vehicle. Our CNG vehicle fuel sales are made primarily 
through contracts with our customers or 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 to 
industrial and institutional energy users that do not have direct access to pipelines. NG Advantage also has 
the capability to transport RNG from production facilities to pipeline injection sites using its fleet of 113 
high-capacity trailers. 

•  LNG  is  RNG  or  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 refer to as the “Boron Plant” and the “Pickens Plant,” respectively. In 2020, we purchased 
9.8% 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 and through our network of public access 
fueling stations. We deliver LNG with our fleet of 74 tanker trailers to fueling stations, where it is stored and 
then dispensed in liquid form into vehicles. The need to liquefy and transport LNG generally causes LNG to 
cost more than CNG. We sell LNG through supply contracts and 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 rocket propulsion and oil fields, and for utility, 
industrial, marine and rail applications. 

Sales  of  Environmental  Credits.   We  generate  Environmental  Credits  consisting  of  Renewable  Identification 
Numbers  (“RINs”  or  “RIN  Credits”),  as  well  as  credits  under  the  California  and  Oregon  Low  Carbon  Fuel  Standards 
(collectively, “LCFS Credits”), when we sell RNG for use as a vehicle fuel in the United States, California, and Oregon, 
respectively.   We  sell  these Environmental  Credits  to  third  parties  who must  comply with  federal  and state  emissions 
requirements. Generally, the amount of Environmental Credits we generate increases as we sell higher volumes of RNG 
as a vehicle fuel. The number of Environmental 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 (for example,  in 2020 market prices for RINs were as high as approximately $2.13 and as 
low as approximately $0.80), 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 maintenance service on Clean Energy-owned and customer-owned fueling stations. Our 
maintenance program is backed by nearly 200 company employed service technicians and support personnel, an in-house 
24/7 remote monitoring center, technician training center, computerized maintenance management system and inventory 
warehouses throughout the United States and Canada. For maintenance services we generally charge a fixed fee or per 
gallon fee based on volume of fuel dispensed at the station. 

Station  Construction and  Engineering.    We  design  and  construct  fueling  stations  and  sell  or  lease  some of  these 
stations  to  our  customers.  Since  2008,  we  have  served  as  the  general  contractor  or  supervised  qualified  third-party 
contractors to build over 430 natural gas fueling stations. 

5 

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 vehicle purchases, fueling station construction and 
vehicle fuel sales. 

Our Company’s Sustainability Program 

Our vision is to deliver renewable transportation fuel for a cleaner, safer, more equitable tomorrow. We have a bold 
program, supported by ambitious goals to drive progress across three key pillars: fueling the transition to renewable energy 
in transportation, building the workforce for the future of renewable energy, and advancing smart policies that drive the 
transformation to zero carbon fuels. 

Fueling Transportation’s Transition to Renewable Energy.  

The  fuel  we  provide  enables  our  customers  to  transition  from  diesel  to  a  solution  with  significantly  lower  GHG 
emissions and air quality impacts today. We are committed to pushing ourselves and our partners further by helping to 
produce and distribute 100% RNG fuels, which can have a negative net emissions profile. We are also committed to doing 
our part to reduce our own emissions across our operations and supply chain. 

Building the Workforce for the Future of Renewable Energy.   

At Clean Energy we have always had a strong focus on employee and contractor safety and strive to be a zero-incident 
workplace for our service technicians and staff, as well as our customers using our facilities. Looking towards the future, 
we will continue to focus on employee recruitment, retention, and engagement, with a specific emphasis on diversity, 
equity, and inclusion in all areas of our company. It is important that we maintain a diverse and inclusive workforce and 
supplier base that is reflective of the communities in which we operate. We acknowledge the lack of diversity in the energy 
sector and strive to be part of the solution. We are committed to building a diverse and inclusive leadership team and 
workforce.  

Advancing Smart Policies that Drive the Transformation to Zero Carbon Fuels.   

Widespread change will be necessary across all industries to achieve our collective climate goals. We recognize that 
some physical climate impacts are unavoidable in the near-term and that the transition to a low carbon economy may bring 
new risks to our business. We also recognize that natural gas extraction and processing causes environmental and social 
impacts that must be appropriately managed. By investing in the energy transition, our aim is to reduce our own risks and 
providing lasting benefits to society. To enable lasting change we must ensure the adoption of performance-driven state 
and  federal  policies  that  accelerate  the  shift  from  diesel  and  other  transportation  fuels  with  high  GHG  emissions  and 
negative air quality impacts to zero net carbon emission transportation fuels. We are also committed to contributing to 
quality of life improvement and economic development in the communities where we conduct business, many of which 
are disadvantaged communities that suffer from poor air quality due to the use of transportation fuels, including diesel, 
that have high GHG emissions and significantly negative air quality impacts.  

Earn Stakeholder Trust.  

To realize our ambitious goals we are building trusted partnerships with our stakeholders. We strive to act ethically 
and responsibly in all aspects of our business, seeking to meet expectations related to human rights, labor standards, air 
quality, water stewardship, operational energy efficiency, biodiversity and land use, disaster preparedness, business ethics, 
and other material topics. 

Market Opportunity 

Increasing Demand for RNG 

Demand for RNG produced from biogas is significant and growing in large part due to an increased focus by the U.S. 
public and investors, as well as federal, state, and local regulatory authorities, on reducing the emission of GHG, such as 

6 

 
methane.  According  to  the  U.S.  Environmental  Protection  Agency  (“EPA”),  methane  is  a  significant  GHG,  which 
accounted for roughly 9.5% of all U.S. GHG emissions from human activities in 2018 and which has a comparative impact 
on  global  warming  that  is  about  25  times  more  powerful  than  that  of  carbon  dioxide.  Biogas  processing  facilities 
substantially reduce methane emissions at livestock farms and landfills, which together accounted for approximately 27% 
of U.S. methane emissions in 2018 according to the EPA. 

Over the past decade we have seen the transportation sector be the fastest growing end market for RNG, where RNG 
is used as a replacement for fossil-based fuel. This growth has been principally driven by increased focus on reducing 
GHGs, as well as Environmental Credits to support the production of renewable transportation fuels.  According to NGV 
America, a national organization dedicated to the development of a growing, profitable, and sustainable market for vehicles 
powered by RNG, from 2015 to 2020, “RNG use as a transportation fuel…increased 291%, displacing close to 7.5 million 
tons of carbon dioxide equivalent.”  Further, RNG engines now commercially available for heavy-duty, regional-haul, 
refuse, transit, and vocational applications have been certified to satisfy CARB’s optional low nitrogen oxide (“NOx”) 
emission standard of 0.02 g/bhp-hr. This means that these engines emit 90% less smog-forming NOx than the existing 
regulatory standards, making them the lowest certified ultra-low NOx emission engines in the U.S. 

Given public and investor calls for, and U.S. federal, state, and local regulatory trends and policies aimed at, reducing 
GHG emissions, we expect continued regulatory support for RNG as a replacement for fossil-based fuels and therefore 
continued and growing demand for RNG in the foreseeable future. 

Increasing Vehicle Availability 

RNG is a replacement for fossil-based fuel consumed by vehicles that use internal combustion engines like those used 
in gasoline- or diesel-powered vehicles. Virtually any car, truck, bus, or other vehicle is capable of being manufactured to 
run on RNG.  Many types and models of heavy- and medium-duty RNG vehicles and engines are available in the U.S., 
including,  among  others,  long-haul  tractors,  refuse  trucks,  regional  tractors,  transit  buses,  ready-mix  trucks,  delivery 
trucks, vocational work trucks, school buses, shuttles, pickup trucks and cargo and passenger vans.  

More  broadly,  many  companies  are  developing  and  commercializing  hydrogen  and  electric  commercial  vehicles, 
particularly  as  the  commercial  transportation  sector  increasingly  shifts  toward  low-emission,  zero-emission, or  carbon 
neutral vehicle solutions.  Cummins, Daimler, Dana, Navistar, PACCAR, Volvo, XOS, Tesla and Nikola have announced 
their plans to bring long-haul Class 8 commercial hydrogen- and battery- powered vehicles to the market over the coming 
years. 

Availability of Long-Term Feedstock Supply 

Biogas is collected and processed to remove impurities for use as RNG and injected into existing natural gas pipelines. 
RNG is fully interchangeable with and chemically identical to conventional natural gas. Common sources of biogas include 
livestock farms, landfills, and wastewater resource recovery facilities (“WRRFs”).   

Livestock-  and  landfill-sourced  biogas  represent  a  significant  opportunity  to  produce  RNG  and  reduce  GHG 
emissions. Although LFG has accounted for most of the growth in biogas projects to date, biogas from dairy and other 
livestock farm waste represents significant opportunities for RNG production that remain largely untapped. According to 
ICF Consulting, Inc., the global consulting services company, by 2040, the U.S. has the technical potential annually to 
produce up to 34.4 billion GGEs of RNG, including up to 20.6 billion GGEs of ADG RNG.   

All-in prices paid for RNG from livestock farms can be significantly higher than prices for RNG from landfills due to 
higher value available from state-level low-carbon fuel incentives for these projects. Given our market leadership in RNG, 
we believe we are well-positioned to take advantage of this market. 

Total Joint Venture 

On March 3, 2021, we entered an agreement (“Total JV Agreement”) with Total that created a 50/50 joint venture 
(“Total JV”) to develop ADG RNG production facilities in the United States. The Total JV Agreement contemplates that 

7 

the Total JV will invest up to $400 million of equity in production projects, and Total and the Company each committed 
to initially provide $50 million for the Total JV. Pursuant to the Total JV Agreement, the Company and Total have given 
the Total JV a limited right of first opportunity to invest in ADG RNG projects they respectively originate. To fund our 
equity  in  the  Total  JV,  we  have  the  option  to  borrow  $20  million  from  Société  Générale  pursuant  to  the  term  credit 
agreement described below under “Key Customer Markets – Zero Now.” 

bp Joint Venture 

On December 18, 2020, we entered a Memorandum of Understanding (“MOU”) with bp pursuant to which we and 
bp intend to create a joint venture (“bpJV”) that will develop, own, and operate ADG RNG production facilities.  We and 
bp plan to share 50/50 control of the bpJV, we will have the option to contribute up to 50% of the bpJV’s capital, and 
100% of the RNG produced from the projects developed and owned by the bpJV will be provided to the vehicle fuels 
market pursuant to our existing marketing agreement with bp. 

Contemporaneous with the execution of the MOU, we and bp executed a loan agreement whereby bp advanced $50 
million  to  us  to  fund  capital  costs  and  expenses  incurred  prior  to  formation  of  the  bpJV,  including  capital  costs  and 
expenses for permitting, engineering, equipment, leases and feed stock rights (“Preformation Costs”). We expect that all 
unpaid principal and accrued interest outstanding under the loan agreement will be contributed to the bpJV, provided that 
if  the  bpJV  is  not  formed  by  April  30,  2022,  we  are  obligated  to  immediately  repay  all  the  outstanding  principal  and 
accrued interest, less 50% of the Preformation Costs within five days of April 30, 2022. The outstanding principal amount 
of the loan accrues interest at the rate per annum equal to LIBOR plus 433 basis points; interest payable under the loan is 
offset by bp’s obligation to pay us a monthly management fee of $0.2 million pursuant to the MOU. 

Use of Environmental Credits to Promote RNG Growth 

When used as a transportation fuel, RNG can generate additional revenue streams through Environmental Credits. 
These  Environmental  Credits  are  provided  for  under  a  variety  of  programs,  including  the  national  Renewable  Fuel 
Standards, or RFS, and state-level Low Carbon Fuel Standard, or LCFS, programs. 

The  RFS  program  requires  transportation  fuel  to  contain  a  minimum  volume  of  renewable  fuel.  To  fulfill  this 
regulatory mandate, the EPA obligates refiners and importers (“Obligated Parties”) to blend renewable fuel with standard 
fuel to meet renewable volume obligations (“RVOs”). Obligated Parties can comply with RVOs by either blending RNG 
into their existing fuel supply or purchasing Renewable Identification Numbers, or RINs. RINs are generated when eligible 
renewable fuels are produced or imported and blended with a petroleum product for use as a transportation fuel. The RFS 
program has been a key driver of growth in the RNG industry since 2014 when the EPA ruled that RNG, when used as a 
transportation fuel, would qualify for D3 RINs (for cellulosic biofuels), which are generally the most valuable among the 
four categories of RINs. In 2020, we generated 45% of all D3 RINs in the U.S. 

The monetization of RNG also benefits from low-carbon fuel initiatives at the state-level, specifically from established 
programs in California and Oregon. California’s LCFS (“CA LCFS”) program requires fuel producers and importers to 
reduce the carbon intensity (“CI”) of their products, with goals of a 10% reduction in carbon emissions from 1990 levels 
by 2020 and a 20% reduction by 2030. CARB awards CA LCFS credits to RNG projects based on each project’s CI score 
relative  to  the  target  CI  score  for  gasoline  and  diesel  fuels.  The  CI  score  represents  the  overall  net  impact  of  carbon 
emissions  for  each  RNG  pathway  and  is  determined  on  a project-by-project basis.  Because  our  business  involves  the 
capture and transformation of waste methane into a renewable source of energy, our customers are able to significantly 
reduce, if not eliminate, GHG emissions from their commercial transportation activities.  Further, CARB calculates that 
RNG produced by livestock farms as carbon negative, generating substantial incremental CA LCFS credits.  Multiple other 
states,  including  New  York,  Washington,  New  Mexico,  and  Colorado, are  considering  LCFS  initiatives  like  those 

8 

implemented in California and Oregon. In 2020, we generated 37% of all LCFS credits under Bio-CNG and Bio-LNG 
pathways in the CA LCFS. 

Our Strategy  

We aim to maintain and increase our position as the leading provider of RNG to the commercial vehicle market in the 
U.S., and our goal is to deliver 100% RNG to our entire fueling infrastructure by 2025. We support this objective through 
a multi-pronged strategy of: 

• 

• 

• 

• 

• 

promoting the reduction of GHG emissions and expanding the use of renewable fuels to displace fossil-based 
fuels; 

increasing  supply  of  RNG  through  the  development  of  new  project  investment  opportunities,  expanding  our 
existing supplier portfolio, and leveraging our existing fuel network and customer relationships; 

empowering our customers to achieve their sustainability and carbon reduction objectives; 

exploiting our management expertise; and 

utilizing our environmental, health and safety and compliance leadership. 

Promoting the Reduction of Methane Emissions and Expanding the Use of Renewable Fuels to Displace Fossil-Based 
Fuels. 

We  share  the  renewable  fuel  industry’s  commitment  to  providing  sustainable  renewable  energy  solutions  and  to 
offering products with high economic and ecological value. By simultaneously replacing fossil-based fuels and reducing 
overall  methane  emissions,  our  business  has  a  substantial  positive  environmental  impact.  We  are  committed  to  the 
sustainable  development,  deployment,  and  utilization  of  RNG  to  reduce  the  country’s  dependence  on  fossil  fuels.    In 
addition  to  its  methane  emission  benefits,  the  increased  production  and  use  of  RNG  has  several  other  environmental 
benefits.  Anaerobically  digested  livestock  waste  produces  significantly  less  odor  than  conventional  storage  and  land 
application systems. The odor of stored livestock waste mainly comes from volatile organic acids and hydrogen sulfide, 
which has a “rotten egg” smell. In an anaerobic digester, volatile organic compounds are reduced to methane and carbon 
dioxide, which are odorless gases. The volatized fraction of hydrogen sulfide is captured with the collected ADG and 
destroyed.    Anaerobic  digestion  provides  several  water  quality  and  land  conservation  benefits  as  well.  Digesters, 
particularly heated digesters, can destroy more than 90% of disease-causing bacteria that might otherwise enter surface 
waters and pose a risk to human and animal health. Digesters also reduce biochemical oxygen demand (“BOD”). BOD is 
one  measure  of  the  potential  for  organic  wastes  to  reduce dissolved  oxygen  in  natural  waters.  Because  fish  and  other 
aquatic organisms need minimum levels of dissolved oxygen for survival, farm practices that reduce BOD protect the 
health of aquatic ecosystems. In addition to protecting local water resources, implementing anaerobic digesters on livestock 
facilities improves soil health. Adding digestate to soil increases the organic matter content, reduces the need for chemical 
fertilizers, improves plant growth and alleviates soil compaction. Further, digestion converts nutrients in manure to a more 
accessible  form  for  plants  to  use.  The  risks  of  water  and  soil  contamination  from  flooding  of  open  lagoons  are  also 
mitigated by digesters. 

Increasing Supply of RNG through the Development of New Project Opportunities, Expanding Our Existing Supplier 
Portfolio, and Leveraging our Extensive Fueling Station Network and Customer Relationships.   

In our view, the market has not yet unlocked the full potential of RNG.  We believe we were the first to deliver RNG 
to the commercial vehicle fuels market, have the most extensive RNG fueling infrastructure and customer relationships, 
and our stations and customer relationships allow us to obtain and deliver substantially more RNG to vehicle operators 
than any other participant in the market.  This is important because RNG must be placed in vehicle fuel tanks to generate 
the valuable Environmental Credits.   

Dependable and economic sources of RNG are critical to our success. We continue to leverage our relationships built 
over the past several decades to identify and execute new RNG project development and supply offtake opportunities.  

9 

 
These come from our relationships with feedstock owners and project developers who value our long operating history, 
strong  reputation  in  the  industry  and  unmatched  access  to  fueling  infrastructure  and  vehicle  operators  for  certainty  of 
Environmental Credit generation. Based on the foregoing, we believe that we are presented with nearly every material 
development, supply and distribution opportunity in the market. 

We exercise financial discipline in pursuing projects by targeting project returns that are in line with the relative risk 
of the specific projects and associated feedstock costs and any related attributes that can be monetized. We also support 
third parties that own RNG production facilities by entering long-term RNG supply offtake agreements.  As these facility 
owners expand their operations, we provide additional access to our fueling infrastructure and customer relationships. 

As of December 31, 2020, we obtain RNG from over 30 supply sources. We believe that we have one of the largest 
and most diverse supply portfolios in the RNG industry, which allows us to provide certainty of RNG supply to our vehicle 
operator customers. 

In our view, all the foregoing gives us a competitive advantage relative to existing and new market entrants. 

Empowering our customers to achieve their sustainability and carbon reduction objectives. 

In November 2021, global leaders will meet in Glasgow for the United Nations Climate Change Conference (COP26) 
to draw up a successor plan to the Paris Agreement. With evidence indicating that the Paris Agreement targets may fall 
short of limiting global warming to 1.5°C, governments and regulators globally face mounting public pressure to address 
the threat of climate change. President Biden has already issued an executive order for the United States to re-join the Paris 
Agreement and key investors have made climate change risk management a key priority: BlackRock has stated in its 2021 
stewardship expectations guidelines that “[t]he events of [2020] have intensified our conviction that sustainability risk—
and climate risk in particular—is investment risk” and plans to expand its engagement to the over 1,000 companies that 
are responsible for producing 90% of GHG emissions in its investment portfolio. Similarly, in his letter to boards, Cyrus 
Taraporevala, State Street’s CEO and President, said the asset manager will be elevating its focus on climate risk, noting 
that ahead of COP26, “policymakers are assessing progress on climate change action . . . many jurisdictions are signaling 
their  intentions  to  make  climate  risk  disclosure  mandatory.”  Vanguard  has  determined  that  “it  is  critical  that  public 
company boards fully understand and own climate-related risks.” 

We  are uniquely  positioned  to  empower our  customers  to  achieve  their sustainability  and  carbon  reduction goals.  
Because our business involves the capture and transformation of waste methane into a renewable source of energy, we 
believe our  customers  can  significantly reduce,  if  not  eliminate, GHG emissions  from  their  commercial  transportation 
activities.  Further, our RNG is available today to reduce climate harming GHG and meet sustainability objectives and at 
a cost to customers that is very competitive to other fuels like diesel. We also assist our customers in their transition to 
cleaner transportation fuels by helping them obtain federal, state and local tax credits, grants and incentives, providing 
vehicle financing, including through our Zero Now and Chevron Adopt-a-Port programs, engineering and constructing 
fueling stations, and facilitating customer selection of vehicle specifications that best meet their needs. 

Management Expertise 

Our management team has decades of combined experience in the alternative vehicle fueling industry.  We believe 
our team’s proven track record in alternative vehicle fuels and focus on RNG gives us a strategic advantage in continuing 
to grow our business profitably. Our diverse experience and integration of key technical, environmental, and administrative 
support  functions,  along  with  our  first-to-market  advantage,  further  our  ability  to  successfully  delivery  RNG  to  the 
commercial vehicle fuels market.   

Environmental, Health and Safety and Compliance Leadership 

Our executive team places the highest priority on the health and safety of our staff and third parties, as well as the 
preservation of the environment. Our corporate culture is built around supporting these priorities, as reflected in our well-
established practices and policies. By setting and maintaining high standards in the renewable energy field, we are often 
able to contribute positively to the safety practices and policies of our partners and customers. Our high safety standards 

10 

include use of wireless gas monitoring safety devices, active monitoring of all field workers, performing environmental 
health  and  safety  (“EHS”)  audits  and  using  technology  throughout  our  safety  processes  from  employee  training  in 
compliance with operational processes and procedures to emergency preparedness. By extension, we incorporate our EHS 
standards into our subcontractor selection qualifications to ensure that our commitment to high EHS standards is shared 
by  our  subcontractors.  For  2020,  excluding  one  incident  related  to  COVID-19,  our  Total  Recordable  Incident  Rate 
(“TRIR”) was 1.43, which is lower than the 2019 national average of 3.00 TRIR for all industries. As of December 31, 
2020, we have not received any U.S. Occupational Health and Safety Administration (“OSHA”) or state OSHA citations 
in the last five years. 

How We Generate Revenue 

We generate revenue from selling RNG and conventional natural gas as a vehicle fuel, as well as selling the associated 
Environmental Credits.  RNG made up 74% of our vehicle fuel sales in 2020, and we expect 100% of our vehicle fuel 
sales to be RNG by 2025.  While RNG has the same chemical composition as natural gas from fossil sources, it has unique 
Environmental  Credits  assigned  to  it  due  to  its  origin  from  low-  and  negative-carbon,  renewable  sources.    The 
Environmental Credits that we sell are composed of RINs and state low-carbon fuel credits, including CA LCFS credits, 
which are generated from the conversion of biogas to RNG that is used as a transportation fuel. 

In addition to revenues generated from sales of RNG and conventional natural gas as a vehicle fuel and Environmental 
Credits, we also generate revenues by providing O&M services for public and private RNG, natural gas and hydrogen 
vehicle fleet customer stations; selling and servicing compressors and other equipment used in RNG production and at 
RNG, natural gas and hydrogen stations; and obtaining federal, state and local tax credits, grants and incentives. 

We are experts in the engineering, design and construction of fueling stations.  When we build stations for customers, 
we charge construction, 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 430 fueling stations. We use 
a combination of custom designed and off-the-shelf equipment to build fueling stations.  

•  Equipment for RNG stations consists of compressors, storage tanks, and dispensers. 

•  As operators deploy hydrogen-powered vehicles, we can modify our fueling stations and build additional stations 
to dispense clean hydrogen produced from our RNG.  The equipment for hydrogen stations includes hydrogen 
reformers, compressors, storage tanks and dispensers, provided that the cost of adding hydrogen fueling may be 
significant. 

•  We also have the capability to add high speed level 3 electric vehicle charging at our station sites, and our RNG 
can be used as a clean resource to power electric vehicles via on-site generation and/or routing to the electric grid 
serving our stations, provided that the cost of adding electric vehicle charging capacity may be significant.  

Key Customer Markets 

We serve customers in a variety of markets, including trucking, airports, refuse and public transit. We believe these 
customer  markets  are  well-suited  for  the  adoption  of  RNG  and  other  alternative  vehicle  fuels  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 ended December 31, 2018, 2019 and 2020, no 
single customer accounted for 10% or more of our total revenue.  

Trucking 

We believe heavy-duty trucking represents the greatest opportunity for RNG and other alternatives to be used as a 
vehicle fuel.  We estimate there are over 15 million heavy-duty trucks operating in the U.S. using over 22 billion gallons 
of diesel fuel each year.  As of December 31, 2020, we provided our fuels to over 4,000 heavy-duty trucks.  Because these 
high-mileage vehicles consume substantial amounts of fuel, operators can derive significant benefits from the carbon and 
GHG reductions associated with our vehicle fuels. We are focused on fueling more heavy-duty trucks, and many well-

11 

known shippers, manufacturers, retailers and other truck fleet operators have started to use RNG fueled trucks to move 
their  freight,  including  among  others  Amazon,  Pepsi  Frito-Lay,  FedEx,  Anheuser-Busch,  USPS,  UPS,  Kroger,  KeHe 
Distributors, Kenan Advantage Group, and Estes Express. 

Zero Now 

To help facilitate the transition of trucking fleets to our fuels, we have launched the Zero Now truck financing program, 
which is intended to increase the deployment of the commercially available RNG heavy-duty trucks in the U.S. The Zero 
Now program generally involves the following: 

•  One or more truck leasing or finance companies lease or sell RNG 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 RNG truck over and above 
the diesel-equivalent truck; and 

•  The fleet operators participating in the program enter into fueling agreements with us, under which the operators 
agree to purchase from us, and we agree to supply, minimum monthly volumes of RNG at prices (which are lower 
than diesel prices per GGE) to operate the trucks leased or purchased in the program and allow us to recoup our 
payment of the incremental cost of the RNG 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 to satisfy our payment obligations for the incremental cost of RNG trucks under the truck lease or sale 
agreements described above; and 

In January 2019, we entered into a credit support agreement with Total Holdings USA Inc. (“THUSA”), a wholly 
owned subsidiary of 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. 

In addition, we are supporting the growth of the RNG heavy-duty truck market through commodity swap arrangements 
under which we have locked in a discount price to diesel for customers fueling with us; our negotiation of favorable fuel 
tank pricing from manufacturers, which we are passing along to our customers; and our network of truck-friendly fueling 
stations (we refer to this network as “America’s Natural Gas Highway” or “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. 

Chevron Adopt-a-Port Program 

In 2020, we partnered with Chevron on Adopt-a-Port, an initiative that  provides truck operators serving the ports 
of Los Angeles and Long Beach with RNG to reduce emissions. For its part, Chevron provides funding for Adopt-a-Port 
and supplies RNG to Clean Energy stations near the ports. Chevron’s funding allows truck operators to subsidize the cost 
of  buying  new  RNG-powered  trucks.  We  manage  the  program,  including  offering  fueling  services  for  qualified  truck 
operators.  Truck operators participating in the program, which supports the ports’ Clean Trucks Program and Clean Air 
Action Plan, fuel at our stations supplied with Chevron RNG.  Importantly, Adopt-a-Port provides a meaningful air quality 
improvement for the adversely-impacted communities around the port – such communities typically have the worst air 
quality in the nation. As of December 31, 2020, customers had ordered 141 trucks under Adopt-a-Port, and we expect at 
least 310 additional trucks to be ordered in 2021.   

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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 our vehicle fuels. As of December 31, 2020, we serve customers at 32 airports. 

Refuse 

We believe that there are nearly 200,000 refuse trucks in the United States that collect and haul refuse and recyclables, 
which aggregately consume approximately two billion gallons of fuel per year. We estimate that approximately 60% of 
new refuse trucks are capable of operating on RNG, up from approximately 3% of new refuse trucks in 2008. Refuse 
haulers are increasingly adopting trucks that run on our vehicle fuels to realize operational savings and to address demands 
for  reduced  emissions  from  the  public,  investors,  and  governmental  agencies.  As  of  December  31,  2020,  we  fuel 
approximately 14,000 refuse vehicles for customers including Waste Management, Republic Services, Waste Connections, 
GFL Environmental, Atlas Disposal, Burrtec, CR&R, Recology and Waste Pro, among others. We also provide vehicle 
fueling services to municipal refuse fleets. 

Public Transit 

We  believe  that  there  are  over  71,000  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 one billion gallons of fuel per year. Many transit agencies have been early adopters 
of vehicles using our fuels, and over 25% of existing transit buses and approximately 35% of new transit buses can operate 
on  RNG.  As  of  December  31, 2020, we  fuel  over  9,000  transit  vehicles  for  customers  including Los  Angeles  County 
Metropolitan  Transit  Authority,  New  York  MTA,  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. 

Competition 

There  are  many  other  companies  operating  in  the  renewable  energy  and waste-to-energy space.  Regarding  RNG 
production and supply, our primary competition is from other companies or solutions for access to biogas from waste. 
Evolving consumer preferences, regulatory conditions, ongoing waste industry trends, and project economics have a strong 
effect on the competitive landscape. We have demonstrated a track record of strategic flexibility across our history which 
has allowed us to pivot towards projects and markets that we believe deliver optimal returns and stockholder value in 
response to changes in market, regulatory and competitive pressures. The biogas and RNG markets are heavily fragmented. 
We believe we are in a strong position to compete for new project development and supply opportunities. Competition for 
such opportunities, however, including the prices being offered for fuel supply, impact profitability of opportunities to us, 
and may make opportunities unsuitable to pursue.  

The market for vehicle fuels is highly competitive. The biggest competition for RNG use as a vehicle fuel is gasoline 
and diesel because most vehicles in our key markets are powered by these fuels. Many established businesses are in the 
market for RNG 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. 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. 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. 

13 

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 we expect to increase. 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;  regulatory  mandates  and  other  requirements;  and  recognition  of  the 
brand. We believe we compare favorably with our competitors based on 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. 

Governmental Regulation 

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. 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. 
Certain 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.   

We  are  subject  to  federal,  state,  and  local  air  quality,  solid  waste,  and  water  quality  regulations  and  permitting 
requirements.  Specific  construction  and  operating  permit  requirements  may  differ  among  states.  Specific  permits  we 
frequently  must  obtain  include  air  permits,  nonhazardous  waste  management  permits,  pollutant  discharge  elimination 
permits,  and  beneficial  use  permits.  We  must  also  maintain  compliance  with  relevant  federal,  state  and  local 
environmental, health and safety requirements. 

RNG projects are subject to federal RFS program regulations. The EPA administers the RFS program with volume 
requirements for several categories of renewable fuels. The EPA’s RFS regulations establish rules for fuel supplied and 
administer the RIN system for compliance, trading credits and rules for waivers. The EPA calculates a blending standard 
for each year based on estimates of gasoline usage from the Department of Energy’s Energy Information Agency. Separate 
quotas and blending requirements are determined for cellulosic biofuels, biomass-based diesel, advanced biofuels, and 
total renewable fuel. Further, we are required to register each RNG project with the EPA and relevant state regulatory 
agencies.  We  qualify  our  RINs  through  a  voluntary  Quality  Assurance  Plan,  which  typically  takes  from  three  to  five 
months from first injection of RNG into the commercial pipeline system. Further, we may make a large project investment 
prior to receiving the regulatory approval and RIN qualification. In addition to registering each RNG project, we are subject 
to quarterly audits under the Quality Assurance Plan of our projects to validate our qualification. 

Our operations are also subject to state renewable fuel standard regulations. The CA LCFS program requires producers 
of petroleum-based fuels to reduce the CI of their products, beginning with a quarter of a percent in 2011 a 10% total 
reduction by 2020, and a 20% total reduction by 2030. Petroleum importers, refiners and wholesalers can either develop 
their  own low-carbon fuel  products  or  buy  CA  LCFS  credits  from  other  companies  that  develop  and  sell low-
carbon alternative fuels, such as biofuels, electricity, natural gas, or hydrogen. We are subject to a qualification process 
like that for RINs, including verification of CI levels and other requirements, existing for CA LCFS credits. 

14 

Before  an  RNG  project  can  be  developed,  all  Resource  Conservation  and  Recovery  Act  (“RCRA”)  Subtitle  D 
requirements (requirements for nonhazardous solid waste management) must be satisfied. In particular, because methane 
is explosive in certain concentrations and poses a hazard if it migrates, biogas collection systems must meet RCRA Subtitle 
D  standards  for  gas  control.  RNG  projects  may  be  subject  to  other  federal,  state  and  local  regulations  that  impose 
requirements for nonhazardous solid waste management. 

Certain of our operations may be subject to federal requirements to prepare for and respond to spills or releases from 
tanks and other equipment and provide training on operation, maintenance and discharge prevention procedures and the 
applicable pollution control laws. We may be required to develop spill prevention, control and countermeasure plans to 
memorialize our preparation and response plans and to update them on a regular basis. 

Our operations may result in liability for hazardous substances or other materials placed into soil or groundwater. 
Pursuant to the Comprehensive Environmental Response, Compensation and Liability Act of 1980 or other federal, state, 
or local laws governing the investigation and cleanup of sites contaminated with hazardous substances, we may be required 
to investigate and/or remediate soil and groundwater contamination at our projects, contiguous and adjacent properties and 
other properties owned and/or operated by third parties. 

Additionally,  biogas  projects  may  need  to  obtain  National  Pollutant  Discharge  Elimination  System  permits  if 
wastewater is discharged directly to a receiving water body. If wastewater is discharged to a local sewer system, biogas 
projects may need to obtain an industrial wastewater permit from a local regulatory authority for discharges to a Publicly 
Owned Treatment Works. The authority to issue these permits may be delegated to state or local governments by the EPA. 
The permits, which typically last five years, limit the quantity and concentration of pollutants that may be discharged. 
Permits may require wastewater treatment or impose other operating conditions to ensure compliance with the limits. In 
addition, the Clean Water Act and implementing state laws and regulations require individual permits or coverage under 
general permits for discharges of storm water runoff from certain types of facilities. 

On September 23, 2020, the California Governor issued an Executive Order N-79-20 setting goals for expanding the 
sale and use of zero-emission vehicles within California, including 100% of in-state sales of new passenger cars and trucks 
to be zero-emission by 2035, and 100% of medium- and heavy-duty truck vehicles in California to be zero-emission by 
2045 for all operations where feasible. The Governor also directed CARB to develop and propose regulations to achieve 
these goals consistent with state and federal law. This order is the latest in a series of targets set by California to transform 
the energy and transportation fuel sectors and reduce GHG emissions. Executive Order B55-18 sets a statewide target to 
achieve carbon neutrality no later than 2045. The transitioning of California’s energy markets to increased reliance on 
renewable and carbon-free sources has the potential to create favorable market conditions for RNG but could also harm 
our  vehicle  fueling  business.  Future  regulatory  actions  will  be  required  to  meet  the  state’s zero-emission and  carbon 
neutrality targets. 

Employees and our Human Capital 

As of December 31, 2020, we employed 465 people. We have not experienced any work stoppages, and none of our 

employees is subject to collective bargaining agreements. 

The success and growth of our business is significantly correlated with our ability to recruit, train, promote and retain 
talented individuals at all levels of our organization. To succeed in a competitive labor market, we have developed and 
maintain  key  recruitment  and  retention  strategies.  These  include  competitive  salary  structures,  including  bonus 
compensation programs, and competitive benefits policies, including paid time off for vacations, sick leave and holidays, 
short-term disability coverage, group term life insurance, and various retirement savings and incentive plans. 

Safety of our personnel is a core value of Clean Energy and maintaining a safe work environment is critical to an 
energy  company’s  ability  to  attract  and  retain  employees. To  support  the  health  and  safety  of  our  employees  during 
the COVID-19 pandemic,  we  have  enhanced  our  safety  protocols  to  promote  social  distancing,  implemented  more 
extensive  cleaning  and  sanitation  processes,  incorporated  temperature  checks,  required  facial  covering,  instituted 
employee questionnaires, restricted corporate travel and visitor access to facilities, and implemented work-from-home and 
work-flex initiatives for certain employees. 

15 

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 our vehicle fuels and to keep abreast of proposed and 
newly adopted regulations that affect our industry. 

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. 

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 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 

The COVID-19 pandemic and measures intended to reduce its spread has, and may continue to, adversely affect our 
business, results of operations and financial condition. 

Beginning in late 2019, a novel strain of coronavirus (COVID-19) spread throughout the world, including the United 
States, ultimately being declared a pandemic. Global health concerns and increased efforts to reduce the spread of the 
COVID-19 pandemic prompted federal, state and local governments to restrict normal daily activities, which resulted in 
travel bans, quarantines, “shelter-in-place” orders requiring individuals to remain in their homes other than to conduct 
essential services or activities, business limitations and shutdowns (subject to exceptions for certain essential operations 
and businesses, including our business). Some of these governmental restrictions have since been scaled back or lifted, 
although an increase in the prevalence of COVID-19 cases and the spread of new variants may result in the re-imposition 
of certain restrictions and may lead to other restrictions being implemented in response to efforts to reduce the spread of 
COVID-19. Given the dynamic nature of these circumstances and the related adverse impact these restrictions have had, 

16 

and may continue to have, on the economy generally, our business and financial results may continue to be adversely 
affected by the COVID-19 pandemic.  

Our  operations  have  been  designated  “essential  critical  infrastructure  work”  in  the  energy  sector  by  the  U.S. 
Department  of  Homeland  Security,  meaning  that  we  have  been  able  to  continue  full  operations.  Despite  our  essential 
designation and our continued operations, however, we are subject to various risk and uncertainties because of the COVID-
19 pandemic that could materially adversely affect our business, results of operations and financial condition, including 
the following: 

• 

• 

• 

• 

a further delay in the adoption of our RNG and natural gas vehicle fuels by heavy-duty trucks and/or a delay in 
increasing the use of our vehicle fuels; 

a continued or further decrease in the volume of truck and fleet operations, including shuttle busses at airports, 
and lower-than-normal levels of public transportation generally, which have resulted and may continue to result 
in decreased demand for our vehicle fuels;  

the impact of business disruptions on the production of vehicles and engines that use our fuels, which has resulted 
in, and may continue to result in, plant closures, decreased manufacturing capacity, and delays in deliveries; and 

depressed oil and diesel prices, especially relative to natural gas prices and for a prolonged period, which may 
decrease the price-related incentive for operators to adopt trucks that use our vehicle fuels. 

The duration and extent of the impact of the COVID-19 pandemic on our business and financial results will depend 
on future developments, including the duration, severity and spread of the pandemic, actions taken to contain its spread, 
any further resurgence of COVID-19, the severity and transmission rates of new variants of COVID-19, the availability, 
distribution and efficacy of vaccines and therapeutics for COVID-19, and how quickly and to what extent normal economic 
and operating conditions can resume within the markets in which we operate, each of which are highly uncertain at this 
time and outside of our control.  Even after the COVID-19 pandemic subsides, we may continue to experience adverse 
effects to our business and financial results because of its global economic impact, including any economic downturn or 
recession  that  has  occurred  or  may  occur.  The  adverse  effect  of  the  COVID-19  pandemic  on  our  business,  results  of 
operations and financial condition could be material. 

Our success is dependent on the willingness of fleets and other consumers to adopt our vehicle fuels, 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 our RNG and conventional natural 
gas vehicle fuels. The market for our vehicle fuels has experienced slow, volatile and unpredictable growth in many sectors. 
For example, adoption and deployment of our vehicle fuels in heavy-duty trucking has been slower and more limited than 
we anticipated. Also, other important fleet markets, including airports and public transit, had slower volume and customer 
growth in 2018, 2019 and 2020 that may continue. If the market for our vehicle fuels 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 our vehicle fuels, many of which are beyond our control, include, among 

others: 

•  Lack of demand for trucks that use our vehicle fuels due to business disruptions and depressed oil prices; 

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

•  Perceptions about the benefits of our vehicle fuels relative to gasoline, diesel and other alternative vehicle fuels, 

including with respect to factors such as supply, cost savings, environmental benefits and safety; 

17 

• 

• 

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

Inertia among fleets and fleet vehicle operators, who may be unable or unwilling to prioritize converting a fleet 
to  our  vehicle  fuels  over  an  operator’s  other  general  business  concerns,  particularly  if  the  operator  is  not 
sufficiently incentivized by emissions regulations or other requirements or lacks demand for the conversion from 
its customers or drivers; 

•  Vehicle cost, fuel efficiency, 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 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  other  vehicle  fuels  and 
engines powered by these fuels; 

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

•  Emissions  and  other  environmental  regulations  and  pressures  on  producing,  transporting,  and  dispensing  our 

fuels. 

In June 2020, the California Air Resources Board, or CARB, adopted the Advanced Clean Trucks regulation, which 
requires manufacturers to sell a gradually increasing proportion of zero-emission electric trucks, vans and pickup trucks 
from 2024 onwards. By the year 2045, the Advanced Clean Trucks regulation seeks to have every new commercial vehicle 
sold  in  California  be  zero-emissions.  Further,  in  September  2020,  the  Governor  of  the  State  of  California  issued  an 
executive order (the “September 2020 Executive Order”) providing that it shall be the goal of California that (i) 100% of 
in-state  sales  of  new  passenger  cars  and  trucks  will  be  zero-emission  by  2035,  (ii)  100%  of  medium-  and  heavy-duty 
vehicles in California will be zero-emission by 2045 for all operations, where feasible, and by 2035 for drayage trucks, 
and (iii) the state will transition to 100% zero-emission off-road vehicles and equipment by 2035 where feasible. The 
September 2020 Executive Order also directed CARB to develop and propose regulations and strategies aimed at achieving 
the  foregoing  goals.  Among  other  things,  we  believe  the  intent  of  the  Advanced  Clean  Trucks  Regulation  and  the 
September 2020 Executive  Order  is  to  limit  and  ultimately discontinue  the production and use  of  internal  combustion 
engines because such engines have “tailpipe” emissions. If either the Advanced Clean Trucks regulation or any additional 
regulations adopted by CARB, including because of the September 2020 Executive Order, is permitted to take effect, it 
may slow, delay or prevent the adoption by fleets and other commercial consumers of our vehicle fuels, particularly in 
California. Moreover, because of the adoption of the Advanced Clean Trucks regulation and the issuance of the September 
2020 Executive Order, other states have taken steps to enact similar regulations, which actions may accelerate if either 
regulation is permitted to take effect, thereby slowing, delaying or preventing the adoption of our vehicle fuels in those 
states as well. 

Our RNG business may not be successful. 

Our RNG business consists of procuring RNG from projects we plan to develop and own or from projects owned by 

third-party producers and reselling this RNG through our fueling infrastructure. 

The success of our RNG business depends on our ability to secure, on acceptable terms, a sufficient supply of RNG; 
sell this RNG in adequate volumes and at prices that are attractive to customers and produce acceptable margins for us; 
and sell Environmental Credits we may generate under applicable federal or state programs from our sale of RNG as a 
vehicle fuel at favorable prices. 

18 

Our ability to maintain an adequate supply of RNG is subject to risks affecting RNG production. Projects that produce 
RNG often experience unpredictable production levels or other difficulties due to a variety of factors, including, among 
others, problems with equipment, severe weather, pandemics, or other health crises, including the ongoing COVID-19 
pandemic, 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 we or 
any of our RNG suppliers experience these or other difficulties in RNG production processes, or if competition for RNG 
development projects and supply 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 Environmental Credits depends 
on  many  factors,  including  the  markets  for  RNG  as  a  vehicle  fuel  and  for  Environmental  Credits.  The  markets  for 
Environmental Credits have been volatile and unpredictable in recent periods, and the prices for these credits are subject 
to  fluctuations.  For  example,  in  2020  market  prices  for  RINs  fluctuated  from  as  high  as  $2.13  to  as  low  as  $0.80. 
Additionally, the value of Environmental 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, prices for and use of oil, diesel or gasoline, the inclusion of additional qualifying fuels in the programs, 
increased production and use of other fuels in the programs, or other conditions.  Our ability to generate revenue from 
sales of Environmental 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 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. Any permanent or temporary 
discontinuation or suspension of federal and state programs to provide credits, grants and incentives, such as an alternative 
fuels tax credit (“AFTC”), would also adversely impact our revenue.  Moreover, in the absence of programs that allow us 
to generate and sell Environmental 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. 

Our commercial success depends on the ability of us and our third-party supply sources to successfully develop and 
operate projects and produce expected volumes of RNG. 

Our specific focus on RNG exposes us to risks related to the supply of and demand for RNG and Environmental 
Credits, the cost of capital expenditures, government regulation, and economic conditions, among other factors. As an 
RNG supplier we may also be negatively affected by lower RNG production resulting from lack of feedstock, mechanical 
breakdowns,  faulty  technology,  competitive  markets  or  changes  to  the  laws  and  regulations  that  mandate  the  use  of 
renewable energy sources. 

In addition, other factors related to the development and operation of renewable energy projects could adversely affect 
our business, including: (i) changes in pipeline gas quality standards or other regulatory changes that may limit our ability 
to transport RNG on pipelines for delivery to vehicles or increase the costs of processing RNG to allow for such deliveries; 
(ii) construction risks, including the risk of delay, that may arise because of inclement weather or labor disruptions; (iii) 
operating risks and the effect of disruptions on our business; (iv) budget overruns and exposure to liabilities because of 
unforeseen environmental, construction, technological or other complications; (v) failures or delays in obtaining desired 
or necessary rights, including leases and feedstock agreements; and (vi) failures or delays in obtaining and keeping in good 
standing permits, authorizations and consents from local city, county, state and U.S. federal governments as well as local 

19 

and U.S. federal governmental organizations.  Any of these factors could prevent completion or operation of projects, or 
otherwise adversely affect our business, financial condition, and results of operations.  

Acquisition,  financing,  construction,  and  development  of  projects  by  us  or  our  partners  that  own  projects  may  not 
commence on anticipated timelines or at all. 

Our strategy is to continue to expand, including through the acquisition of additional projects and by signing additional 
supply agreements with third party project owner partners. From time to time we and our partners enter into nonbinding 
letters  of  intent  for  projects.    Until  the  negotiations  are  final,  however,  and  the  parties  have  executed  definitive 
documentation, we or our partners may not be able to consummate any development or acquisition transactions, or any 
other similar arrangements, on the terms set forth in the applicable letter of intent or at all. 

The acquisition, financing, construction and development of projects involves numerous risks, including: 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

difficulties in identifying, obtaining, and permitting suitable sites for new projects; 

failure to obtain all necessary rights to land access and use; 

inaccuracy of assumptions with respect to the cost and schedule for completing construction; 

inaccuracy of assumptions with respect to the biogas potential, including quality, volume, and asset life; 

the ability to obtain financing for a project on acceptable terms or at all; 

delays in deliveries or increases in the price of equipment; 

permitting and other regulatory issues, license revocation and changes in legal requirements; 

increases in the cost of labor, labor disputes and work stoppages; 

failure to receive quality and timely performance of third-party services; 

unforeseen engineering and environmental problems; 

cost overruns; 

accidents involving personal injury or the loss of life; and 

•  weather conditions, catastrophic events, including fires, explosions, earthquakes, droughts and acts of terrorism, 

and other force majeure events. 

In  addition,  new  projects  have  no  operating  history.  A  new  project  may  be  unable  to  fund  principal  and  interest 

payments under its debt service obligations or may operate at a loss.  

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

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. 
We are dependent on these manufacturers to succeed in our target markets, and we have no influence or control over their 
activities. For example, Cummins Westport is the only engine manufacturer for the RNG and natural gas heavy-duty truck 
market  in  the  United  States,  and  Cummins  Westport  and  other  original  equipment  manufacturers  currently  produce  a 
relatively small number of engines and vehicles that use our vehicle fuels. These manufacturers may decide not to expand 
or maintain, or may decide to discontinue or curtail, their engine or vehicle product lines for a variety of reasons, including 
as a result of the adoption of government policies or programs such as the Advanced Clean Trucks regulation and the 
September 2020 Executive Order, and the supply of engines or vehicle product lines by these manufacturers may also be 
disrupted or delayed due to delays, restrictions or other business impacts related to the COVID-19 pandemic. The limited 

20 

production of engines and vehicles that use our fuels 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 our fuels. 
In addition, some operators have communicated to us that the first-generation models of heavy-duty truck engines using 
our fuels 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 to convert their fleets to vehicles that use our fuels.  

To secure RNG from new projects, we typically face a long and variable development cycle that requires significant 
resource commitments and a long lead time before we realize revenues. 

The  development,  design  and  construction  process  for  RNG  projects  generally  lasts  between  12  to  18  months  on 
average.  Prior  to  entering  into  a  letter  of  intent  with  respect  to  an  RNG  project,  we  typically  conduct  a  preliminary 
assessment of whether the site is commercially viable based on our expected return on investment, investment payback 
period, and other operating metrics, as well as the necessary permits to develop a project on that site. After entering a 
project letter of intent, we perform a more detailed review of the site’s facilities, which serves as the basis for the final 
specifications of the project. Finally, we negotiate and execute contracts with the site owner. This extended development 
process  requires  the  dedication  of  significant  time  and  resources  from  our  personnel,  with  no  certainty  of  success  or 
recovery of our expenses. Further, upon commencement of operations, it takes about 12 months for the project to ramp up 
to expected production level, receive necessary registrations and approvals from the EPA and CARB, and begin generating 
revenue. All these factors, and in particular, expenditures on development of projects that will not generate significant 
revenue in the near term, can contribute to fluctuations in our quarterly financial performance and increase the likelihood 
that our operating results in a particular period will fall below investor expectations. 

Livestock waste and dairy farm projects have different economic models and risk profiles than landfill facilities, and 
we may not be able to achieve the operating results we expect from these projects. 

Livestock  waste  and  dairy  farm  projects  produce  significantly  less  RNG  than  landfill  facilities.  As  a  result,  these 
projects are even more dependent on the LCFS credits and, to a lesser extent, RINs for commercial viability. If CARB 
reduces the CI score that it applies to waste conversion projects, such as dairy digesters, the number of LCFS credits for 
RNG  generated  at  livestock waste  and dairy farm projects  will decline. Additionally,  revenue  from LCFS  credits  also 
depends on the price per LCFS credit, which is driven by various market forces, including the supply of and demand for 
LCFS credits, which in turn depends on the demand for traditional transportation fuel and the supply of renewable fuel 
from other renewable energy sources, and mandated CI targets, which determine the number of LCFS credits required to 
offset LCFS deficits, and which increase over time. Fluctuations in the price of LCFS credits or the number of LCFS 
credits  assigned  will  have  a  significantly  greater  effect  on  the  success  of  livestock  waste  and  dairy  farm  projects.  A 
significant decline in the value of LCFS credits adversely affect our business, financial condition, and results of operations. 

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

We incurred pre-tax losses in 2017, 2018 and 2020. During 2018, 2019 and 2020, our results were positively affected 
by $26.7 million, $47.1 million, and $19.8 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. Furthermore, historical losses may not be indicative of 
future losses due to the unpredictability of the COVID-19 pandemic, and our future losses may be greater than our past 
losses. 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 fueling compressor manufacturing business (which we combined with 
another company’s fueling compressor manufacturing business in the CEC Combination (as defined below)), our closure 
of certain fueling stations, our determination that certain assets were impaired because 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 

21 

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  plans  for  hydrogen  and  electric  vehicle  stations  will  require  significant  cash  investments  and  management 
resources and may not meet our expectations. 

We believe our success is also dependent on fleets and other consumers also adopting hydrogen and electric vehicles 
and our ability to use our RNG to fuel or charge such vehicles.  As operators deploy hydrogen powered vehicles, we plan 
to modify our fueling stations to reform our RNG and deliver clean hydrogen.  Further, we have the capability to add 
electric charging at our sites, and we believe our RNG can be used to generate clean electricity to power vehicles.   

Our plans will require significant cash investments and management resources and may not meet our expectations 
with respect to additional sales of our vehicle fuels. We have experience constructing hydrogen fueling stations, but such 
facilities cost significantly more than traditional RNG vehicle fueling stations.  In addition, we have not yet added electric 
charging capability to any of our stations, and the cost of such capability may be significant.  We will need to ensure 
compliance  with  all  applicable  regulatory  requirements,  including  obtaining  any  required  permits  and  land  use  rights, 
which could take considerable time and expense and is subject to the risk that government support in certain areas may be 
discontinued.  If  we  are  unable  to  modify  our  stations  to  provide  hydrogen  or  add  electric  charging  to  our  stations,  or 
experience delays, our stations may be unable to meet our customer demand, which may negatively impact our business, 
prospects, financial condition, and operating results. 

Cummins, Daimler, Dana, Navistar, PACCAR, Toyota, Volvo, XOS, Tesla and Nikola have announced their plans to 
bring long-haul Class 8 commercial hydrogen- and battery- powered vehicles to the market, and we believe our success is 
dependent on such plans coming to fruition.  We will be, however, dependent on these manufacturers to succeed in our 
target markets, and we will have no influence over their activities.  See the risks discussed under “We are dependent on 
the production of vehicles and engines in our key customer and geographic markets by vehicle and engine manufacturers, 
over which we have no control,” above and elsewhere in these risk factors.   

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

The  prices  of  RNG,  natural  gas,  crude  oil,  gasoline  and  diesel  can  be  volatile  and  this  volatility  may  continue  to 
increase. Factors that may cause volatility in the prices of RNG, natural gas, crude oil, gasoline and diesel include, among 
others, changes in supply and availability of crude oil and RNG, 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 transportation techniques and methods, economic, health and political conditions, transportation 
costs and the price of foreign imports. Specifically, prices for crude oil, which is the commodity used to make gasoline 
and diesel, have been lower in recent years, due in part to over-production and increased supply without a corresponding 
increase in demand, and oil prices decreased further in 2020, hitting an all-time low due to the COVID-19 pandemic. If 
the prices of crude oil, gasoline and diesel continue to be low or decline, or if the price of RNG or natural gas increases 
without corresponding increases in the prices of crude oil, gasoline and diesel or Environmental Credits, then we may not 
be able to offer our customers an attractive price advantage for our vehicle fuels, market adoption of our vehicle fuels 
could be slowed or limited and/or we may be forced to reduce the prices at which we sell our vehicle fuels in order to try 
and attract new customers or prevent the loss of demand from existing customers. Natural gas and crude oil prices are 
expected to remain volatile for the near future because of market uncertainties over supply and demand, including due to 
the current state of the world economies, energy infrastructure and other factors. 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. 

Pricing conditions may also exacerbate the cost differential between vehicles that use our fuels and gasoline or diesel-
powered  vehicles,  which  may  lead  operators  to  delay  or  refrain  from  purchasing  or  converting  to  our  vehicle  fuels. 
Generally, vehicles that use our fuels cost more initially than gasoline or diesel-powered vehicles because the components 

22 

needed for a vehicle to use our fuels add to the vehicle’s base cost. Operators then seek to recover the additional base cost 
over time through a lower cost to use our fuels. Operators may, however, perceive an inability to timely recover these 
additional initial costs if our vehicle fuels 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. 

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 our products is gasoline and diesel 
because most vehicles in our key markets are powered by these fuels. We also compete with suppliers of other alternative 
vehicle  fuels,  including  renewable  diesel  and  biodiesel,  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.  

Many businesses are in the market for RNG and other alternatives for use as vehicle fuel, including alternative vehicle 
and alternative fuel companies, refuse collectors, industrial gas companies, private equity groups, commodity traders, 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 alternative 
vehicle fuels, including RNG, increases, then we expect competition to 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. 

NG Advantage may not be successful. 

NG Advantage provides “virtual pipelines” to transport our fuels from production sites to pipeline interconnects and 
to transport CNG to industrial and institutional energy users that do not have direct access to pipelines. NG Advantage 
faces unique risks, including among others: (i) it has a history of net losses and has incurred substantial indebtedness; (ii) 
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; (iii) the labor market for truck drivers is very competitive, which increases 
NG Advantage’s difficulty in meeting its delivery obligations; (iv) NG Advantage often transports CNG in trailers over 
long distances and these trailers may be involved in accidents; and (v) NG Advantage’s CNG trailers may become subject 
to new or changed regulations that could adversely affect its business. If NG Advantage fails to manage any of these risks, 
our business, financial condition, liquidity, results of operations, prospects and reputation may be harmed.  In addition, we 
have been a significant source of financing for NG Advantage, consisting of loans of $12.9 million and $26.7 million in 
the  years  ended  December  31,  2020  and  2019,  respectively,  and  a  $5.0  million  equity  investment  in  the  year  ended 
December  31,  2018.  If  NG  Advantage  is  not  able  to  obtain  financing  from  external  sources,  we  will  need  to  provide 
additional debt or equity capital to allow NG Advantage to satisfy its commitments and maintain operations. 

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

As part of our business activities, we design and construct vehicle 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 

23 

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  many  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, problems with utility services, 
challenges obtaining and retaining required permits and approvals or local resistance, including due to reduced operations 
of permitting agencies because of the ongoing COVID-19 pandemic, 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 fueling station construction, maintenance and fuel sale contracts 
with  various  government  bodies,  which  accounted  for  22%,  21%  and  22%  of  our  revenue  in  2018,  2019  and  2020, 
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. 

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 2021 we entered into 
joint ventures with each of Total and bp to develop and own dairy RNG production projects.  These strategic transactions 

24 

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,  the  following:  (i)  difficulties  integrating  the  operations, 
personnel, contracts, service providers and technologies of an acquired company or partner; (ii) diversion of financial and 
management resources from existing operations or alternative acquisition, investment, strategic or other opportunities; (iii) 
failure  to  realize  the  anticipated  synergies  or  other  benefits  of  a  transaction  or  relationship;  (iv)  risks  of  entering  new 
customer  or  geographic  markets  in  which  we  may  have  limited  or  no  experience;  (v)  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; and (vi) incurrence of substantial costs or debt or equity dilution to fund an acquisition, investment or other 
transaction or relationship, as well as possible write-offs or impairment charges relating to any businesses we partner with, 
invest in or acquire. 

Our partners may choose to invest in renewable vehicle fuels other than RNG. 

Our partners, including Total, bp and Chevron, may reallocate their resources from RNG to other renewable vehicle 

fuels.  Any such action would have a material adverse effect on our plans, results of operations and financial condition. 

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 vehicle fuel sales, station construction 
sales, sales of Environmental 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; variations in the fair value of 
certain of our derivative instruments that are recorded in revenue; sales of compressors and other equipment used in RNG 
production and at fueling stations; 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 (as such term 
is defined below), but were also negatively affected by significant charges in connection with our closure of certain fueling 
stations, the decreased operating performance of our former 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, 
especially  given  the  current  uncertainties  related  to  the  ongoing  COVID-19  pandemic,  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 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. 

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. 

25 

Risks Related to Our Indebtedness and Other Capital Resources. 

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

We  require  capital  to  pay  for  capital  expenditures,  operating  expenses,  any  mergers,  acquisitions  or  strategic 
investments, transactions or relationships we may pursue, and to make principal and interest payments on our indebtedness. 
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. 

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

As of December 31, 2020, we have consolidated indebtedness of $89.2 million (including the $50.0 million bp loan 
described  in  this  report),  and  we  are  permitted  to  incur  significant  additional  debt.  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 various 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.  Any  repayment  of  our  debt  with  equity,  however,  would  dilute  the  ownership  interests  of  our  existing 
stockholders.  Additionally,  because  the  agreements  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. Any such declaration could deplete all or a large portion of our available 

26 

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 Environmental Health and Safety and Governmental and Environmental Regulations 

Our  business  is  influenced  by  environmental,  tax  and  other  government  regulations,  programs  and  incentives  that 
promote our vehicle fuels, 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 our vehicle fuels. These include various government programs that make grant funds 
available for the purchase of vehicles and construction of fueling stations, as well as the AFTC under which we generate 
revenue for our vehicle fuel sales. The AFTC currently expires at the end of 2021. If the AFTC is not extended after 2021, 
including if other legislative priorities result in insufficient focus on this program during upcoming congressional sessions, 
the  AFTC  would  not  be  available  for  vehicle  fuel  sales,  and  our  revenue  would  be  materially  adversely  affected. 
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 Environmental Credits. 

These programs and regulations, which have the effect of encouraging the use of RNG 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, producers of alternative vehicles or vehicle fuels, or other powerful groups, may invest significant time and 
money in efforts to delay, repeal or otherwise negatively influence regulations and programs that promote RNG. 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 programs and regulations, or the adoption of any programs or regulations that encourage the use of 
other alternative fuels or alternative vehicles over RNG, would reduce the market for RNG 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 and applicability of these or similar measures on our business remains uncertain, a focus on “zero 
tailpipe emissions” vehicles over vehicles with an overall net carbon negative emissions profile, but with some tailpipe 
emissions operating on RNG, could adversely affect the market for our fuels.   

To benefit from Environmental Credits, RNG projects are required to be registered and are subject to audit.  

RNG projects are required to register with the EPA and relevant state regulatory agencies. Further, we qualify our 
RINs through a voluntary Quality Assurance Plan, which typically takes from three to five months from first injection of 
RNG  into  the  commercial  pipeline  system.  Delays  in  obtaining  registration,  RIN  qualification,  and  any  LCFS  credit 
qualification of a new project could delay future revenues from a project and could adversely affect our cash flow. Further, 
we may make large investments in projects prior to receiving the regulatory approval and RIN qualification. By registering 
RNG projects with the EPA’s voluntary Quality Assurance Plan, we are subject to quarterly third-party audits and semi-
annual on-site visits of projects to validate generated RINs and overall compliance with the RFS program. We are also 
subject to a separate third party’s annual attestation review. The Quality Assurance Plan provides a process for RIN owners 
to follow, for an affirmative defense to civil liability, if used or transferred Quality Assurance Plan verified RINs were 
invalidly generated. A project’s failure to comply could result in remedial action by the EPA, including penalties, fines, 
retirement of RINs, or termination of the project’s registration, any of which could adversely affect our business, financial 
condition and results of operations. 

27 

Our business could be negatively affected by federal or state laws or regulations mandating new or additional limits on 
GHG emissions, “tailpipe” emissions or internal combustion engines.  

Federal or state laws or regulations have been adopted, such as California’s AB 32 cap and trade law, and may be 
adopted  that  impose  limits  on  GHG  emissions.  The  effects  of  GHG  emission  limits  on  our  business  are  subject  to 
significant uncertainties based on, among other things, the timing of any requirements, the required levels of emission 
reductions,  the  nature  of  any  market-based or  tax-based mechanisms  adopted  to  facilitate  reductions,  the  relative 
availability of GHG emission reduction offsets, the development of cost-effective, commercial-scale carbon capture and 
storage  technology  and  supporting  regulations  and  liability  mitigation  measures,  the  range  of  available  compliance 
alternatives, and our ability to demonstrate that our vehicle fuels qualify as a compliance alternative under any statutory 
or regulatory programs to limit GHG emissions. If our vehicle fuels are not able to meet GHG emission limits or perform 
as well as other alternative fuels and vehicles, our solutions could be less competitive. Furthermore, additional federal or 
state taxes could be implemented on “tailpipe” emissions, which would have a negative impact on the cost of our vehicle 
fuels, as compared to vehicle fuels that do not generate tailpipe emissions. See also the discussion above regarding the 
Advanced  Clean  Trucks  regulation  and  the  September  2020  Executive  Order  under  “Our  success  is  dependent  on  the 
willingness of fleets and other consumers to adopt our vehicle fuels, which may not occur in a timely manner, at expected 
levels or at all.”  

Our business is subject to a variety of government regulations, which may restrict our operations and result in costs 
and penalties or otherwise adversely affect our business and ability to compete. 

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, may be unclear and difficult 
to interpret 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,  in  June  2020,  California  passed  the 
Advanced  Clean  Trucks  regulation,  which  seeks  to  have  all  new  commercial  vehicles  sold  in  California  have  zero-
emissions by 2045, and in September 2020, California’s Governor issued the September 2020 Executive Order, which 
seeks to have 100% of medium- and heavy-duty vehicles in California be zero emission by 2045. 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 are subject to various environmental laws and regulations that could impose substantial costs upon us. 

Our operations are and will be subject to federal, state and local environmental laws and regulations, including laws 
relating to the use, handling, storage, disposal of and human exposure to hazardous materials. Moreover, we expect that 
we  will  be  affected  by  future  amendments  to  such  laws  or  other  new  environmental  and  health  and  safety  laws  and 
regulations  which  may  require  us  to  change  our  operations,  potentially  resulting  in  a  material  adverse  effect  on  our 
business,  prospects,  financial  condition,  and  operating  results.  These  laws  can  give  rise  to  liability  for  administrative 
oversight costs, cleanup costs, property damage, bodily injury, fines, and penalties. Capital and operating expenses needed 
to comply with environmental laws and regulations can be significant, and violations may result in substantial fines and 
penalties, third-party damages, suspension of production or a cessation of our operations. 

Contamination  at  properties  we  own  or  operate,  will  own  or  operate,  or  formerly  owned  or  operated  or  to  which 
hazardous substances were sent by us, may result in liability for us under environmental laws and regulations, including, 

28 

but  not  limited  to,  the  Comprehensive  Environmental  Response,  Compensation  and  Liability  Act,  which  can  impose 
liability  for  the  full  amount  of  remediation-related costs  without  regard  to  fault,  for  the  investigation  and  cleanup  of 
contaminated  soil  and  ground  water,  for  impacts  to  human  health  and  for  damages  to  natural  resources.  The  costs  of 
complying with environmental laws and regulations and any claims concerning noncompliance, or liability with respect 
to contamination in the future, could have a material adverse effect on our financial condition or operating results. We 
may  face  unexpected  delays  in  obtaining  the  required  permits  and  approvals  in  connection  with  our  planned  RNG 
production  facilities  that  could  require  significant  time  and  financial  resources  and  delay  our  ability  to  operate  these 
facilities, which would adversely impact our business, prospects, financial condition and operating results. 

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  vehicles  that  use  our  fuels  or  operation  of  vehicle  fueling 
stations could result in sudden releases of pressure that could cause explosions. In addition, our operations may result in 
the venting of methane, a potent greenhouse gas. These safety and environmental risks could result in uncontrollable flows 
of our fuels, 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 more than 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 our vehicle fuel business could harm our industry generally 
by negatively affecting perceptions about, and adoption levels of, our vehicle fuels. 

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 Marketing Services, S.E. (“TMS”), a wholly owned 
subsidiary  of  Total,  in  June  2018,  Total  beneficially  owned  25.6%  of  our  outstanding  shares  of  common  stock  as  of 
December 31, 2020, which represents the largest ownership position among stockholders 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 and restricted stock units may be eligible for sale in the public 
market, to the extent permitted by Rule 144 and the provisions of the applicable stock option and restricted stock unit 
agreements or if such shares have been registered under the Securities Act. For instance, we filed a registration statement 

29 

with the SEC to cover the resale of the 50,856,296 shares of our common stock issued and sold to TMS, which registration 
statement was declared effective in August 2018. 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. 

General Risk Factors 

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, 
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. 

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 following: (i) the factors that may influence the adoption of our vehicle fuels, as discussed elsewhere in these risk 
factors; (ii) our ability to implement our business plans and initiatives and their anticipated, perceived or actual level of 
success;  (iii)  failure  to  meet  or  exceed  any  financial  guidance  we  have  provided  to  the  public  or  the  estimates  and 
projections  of  the  investment  community;  (iv)  the  market’s  perception  of  the  success  and  importance  of  any  of  our 
acquisitions, divestitures, investments or other strategic relationships or transactions; (v) the amount of and timing of sales 
of,  and  prices  for,  Environmental  Credits;  (vi)  actions  taken  by  state  or  federal  governments  to  mandate  or  otherwise 
promote or incentivize alternative vehicles or vehicle fuels over, or to the exclusion of, RNG; (vii) changes in political, 
regulatory, health, economic and market conditions; and (viii) a change in the trading volume of our common stock. 

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 

30 

fourth quarters of 2017 related to our former 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. 

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. 

31 

 
 
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 45 holders of record of our common stock as of March 3, 2021. 

Issuer Purchases of Equity Securities 

On March 12, 2020, our Board of Directors approved a share repurchase program of up to $30.0 million (exclusive of 
fees and commissions) of our outstanding common stock (the “Repurchase Program”). The Repurchase Program does not 
have an expiration date, and may be suspended or discontinued at any time.  

The  Repurchase  Program  does  not  obligate  us  to  acquire  any  specific  number  of  shares.  Repurchases  under  the 
Repurchase Program may be effected from time to time through open market purchases, privately negotiated transactions, 
structured or derivative transactions, including accelerated share repurchase transactions, or other methods of acquiring 
shares, in each case subject to market conditions, applicable securities laws and other relevant factors. Repurchases may 
also be made under plans set up pursuant to Rule 10b5-1 promulgated under the Exchange Act (“Rule 10b5-1 plans”). 

The following table summarizes the Company’s share repurchase activity during the three months ended December 

31, 2020 (in thousands, except share and per share amounts): 

  Total Number 

of Shares 
      Purchased 

  Approximate 
Dollar Value 
of Shares That 

  Total Number of   
  Shares Purchased   May Yet Be 
Purchased 
  as Part of Publicly  

Average 
Price Paid    Announced Plans   Under the Plans

     per Share (a)    

or Programs 

     or Program 

 147,357   $ 
 249,338   $ 
 —   $ 
 396,695   $ 

 2.47  
 2.45  
 —  
 2.46  

 147,357   $ 
 249,338   $ 
 —   $ 
 396,695   $ 

 16,120 
 15,508 
 15,508 
 15,508 

Period 
October 1, 2020 through October 31, 2020 
November 1, 2020 through November 30, 2020 
December 1, 2020 through December 31, 2020 

Total  

(a) Exclusive of fees and commissions. 

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 in each of these indices at the close of market on December 31, 2015 (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  

32 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
   
 
 
 
 
   
 
 
 
 
 
 
 
 
  
  
 
  
  
 
 
 
 
 
with similar market capitalizations as us and due to the lack of a comparable industry or line-of-business index or peer 
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. 

157.00%

107.00%

57.00%

7.00%

-43.00%

-93.00%

Clean Energy Fuels Corp. (NasdaqGS:CLNE) - Share Pricing
NASDAQ Composite Index (^COMP) - Index Value

Russell 2000 Index (^RUT) - Index Value

Item 6.   (Reserved).  

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 2020 and 2019 items and year-to-year comparisons of 2020 
to 2019. Discussions of 2018 items and year-to-year comparisons of 2019 and 2018 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, 2019, filed with the SEC on March 10, 2020. 

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 GGEs of RNG and conventional natural gas delivered. Through our sales of 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 from 60% and to over 400% based on CARB determinations, depending on the source of the RNG, while also reducing 
criteria  pollutants  such  as  Oxides  of  Nitrogen, or NOx.  RNG  is delivered  as  CNG  and  LNG. Our  sales  of  RNG  have 

33 

 
 
 
increased dramatically, from 13.0 million GGEs in 2013 (the year we introduced our RNG to the vehicle fuel market) to 
153.3 million GGEs in 2020. 

As a clean energy solutions provider, we supply RNG and conventional natural gas, in the form of CNG and LNG, 
for medium and heavy-duty vehicles; design and build, as well as operate and maintain, public and private fueling stations; 
sell and service compressors and other equipment used in RNG production and at fueling stations; transport and sell RNG 
and conventional natural gas via “virtual” natural gas pipelines and interconnects; sell Environmental Credits we generate 
by selling RNG as a vehicle fuel; and obtain federal, state and local tax credits, grants and incentives. 

We serve fleet vehicle operators in a variety of markets, including heavy-duty trucking, airports, refuse and public 
transit. We believe these fleet markets will continue to present a growth opportunity for our vehicle fuels for the foreseeable 
future. As of December 31, 2020, we serve over 1,000 fleet customers operating over 48,000 vehicles, and we own, operate 
or supply 565 fueling stations in 39 states and the District of Columbia in the United States and five provinces in Canada. 

Impact of COVID-19 

The COVID-19 pandemic has resulted, and is likely to continue to result, in significant economic disruption and has 
adversely affected and will likely continue to adversely affect our business. Our operations have been designated “essential 
critical infrastructure work” in the energy sector by the U.S. Department of Homeland Security, meaning that we have 
been able to continue operating to the fullest extent possible. While continuing our business operations, we are focused on 
protecting the health and wellbeing of our employees, customers and the communities in which we operate. Except as 
described herein, the COVID-19 pandemic has not resulted in any adverse effects to our operations, including financial 
reporting  systems,  internal  control  over  financial  reporting  and  disclosure  controls  and  procedures.  Additionally,  our 
technicians and O&M services continued to operate effectively, and we believe our supply chain has not been disrupted. 
All of our natural gas fueling stations have remained fully operational during the COVID-19 pandemic and continue to 
provide access to customers--many that are supplying essential services. Further, we have not experienced any challenges 
implementing business continuity plans and have not incurred, and do not expect to incur, material expenditures related to 
the same.  

We have adopted and applied protocols and procedures in accordance with federal, state and local government policies 
and  mandates  and  Centers  for  Disease  Control  (CDC)  guidelines  for  our  offices. Specifically,  we  have  implemented 
enhanced cleaning and disinfecting protocols and procedures like temperature and COVID-19 screening questionnaires 
for  the  health  and  safety  of  our  employees,  customers  and  the  communities  in  which  we  operate.  We  have  provided 
personal protective equipment (including masks and gloves) and hand sanitizer, we have modified office seating, we expect 
all our employees to maintain appropriate physical distancing, and we continue to restrict employee travel in accordance 
with the various state health orders.  

We began to see the negative effects of COVID-19 on volumes delivered in mid-March 2020 and continued to see 
declines in volumes delivered through December 31, 2020, as compared to the respective periods in 2019. We saw our 
volumes bottom in the second quarter of 2020 and have since seen improvement in volumes as volumes delivered for the 
fourth quarter of 2020 increased 7% over the second quarter of 2020. While volumes delivered in December 2020 were 
2% lower compared to December 2019, this decline was lower than the decline of 4% when comparing September 2020 
to September 2019. The most significant negative effects of COVID-19 in relation to our volumes continue to be seen in 
the airports (fleet services) and public transit customer markets, which were down by between 15% and 32% during the 
three months ended December 31, 2020 compared to the comparable 2019 period due to federal, state and local government 
mandates to restrict normal daily activities, as well as travel bans, quarantines and “shelter-in-place” orders, with growth 
in the refuse market in the three months ended December 31, 2020 from the three months ended December 31, 2019, where 
demand continues to be strong. Although many of these restrictions have been lifted or scaled back in recent months, the 
continued prevalence of COVID-19 in certain areas has resulted in the re-imposition of certain restrictions and may lead 
to other restrictions being re-implemented in response to efforts to reduce the spread of COVID-19. These measures, which 
may remain in place for a significant amount of time, may further adversely affect airports, public transit and government 
fleet customer markets. 

Our  volume  of  GGEs  delivered  for  the  year  ended  December  31,  2020  declined  5%  compared  to  the  prior  year. 

34 

Although we are experiencing gradual improvements since the onset of the COVID-19 pandemic, there is no guarantee 
this  will  continue  due  to  uncertainties  regarding  the  effects  of  the  COVID-19  pandemic.  We  are  projecting  growth  in 
volumes for 2021 compared to 2020; however, it is possible that the prolonged effect of the COVID-19 pandemic could 
negatively affect our future volumes. Declines in volume have resulted and could continue to result in lower gross margin 
dollars year-over-year and likely a lower gross margin per GGE due to lower output on fixed operating costs and the effect 
of less revenue from Environmental Credits. Lower volumes have affected and may continue to affect our AFTC revenue 
as a portion of the decline in volume is from AFTC-eligible volumes. We continue to experience lower operating expenses, 
which has helped mitigate the lower gross profit margins from lower volumes, and we have benefitted from other gains 
on station asset disposals. Given the dynamic nature of these circumstances, significant uncertainty exists concerning the 
duration of business disruption and the full extent of the effect of COVID-19 on our business, results of operations and 
financial condition. Additionally, the effects of COVID-19, low oil prices and the adoption of government policies and 
programs, or increased popular sentiment, in favor of other vehicle technologies or fuels may delay adoption of natural 
gas vehicles, particularly heavy-duty natural gas trucks, by new or existing customers. For more information, see “Risk 
Factors” in Part II, Item 1A of this report. 

We believe we have sufficient liquidity to support business operations through this volatile period, including total 
cash and cash equivalents and short-term investments of $138.5 million as of December 31, 2020. We will also collect 
receivables related to the 2020 and 2021 AFTC revenue in 2021 and the first half of 2022; we expect AFTC revenue to be 
approximately $20 million for 2021 giving consideration to the effect of COVID-19 described above. As of December 31, 
2020, we had $4.4 million of current debt. In addition, actions we have taken and are continuing to take have reduced costs 
and spending across our organization. This includes limiting travel, reducing hiring activities and limiting discretionary 
spending. Additionally, we could suspend, or limit repurchases under, the Repurchase Program, which was authorized for 
up to $30.0 million and of which $14.5 million, excluding fees and commissions, had been spent through December 31, 
2020. We have not repurchased any shares under the Repurchase Program in 2021. 

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) 
Station construction sales 
AFTC (2) 
Other 

Total  

Year Ended December 31,  
2019 

2020 

2018 

  $ 

  $ 

 286.7   $ 

 25.5  
 26.7  
 7.5  
 346.4   $ 

 273.6   $ 

 23.1  
 47.1  
 0.3  
 344.1   $ 

 245.3 
 26.6 
 19.8 
 — 
 291.7 

(1)  Our volume-related revenue primarily consists of sales of RNG and conventional natural gas, in the form of CNG and LNG, 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 swap and customer fueling contracts, is included below under “2018-2020 Developments.” Additionally, 

35 

 
 
 
 
 
 
 
 
 
 
 
 
     
     
     
 
  
  
  
 
  
  
  
 
  
  
  
 
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 
LCFS Credits 

Total volume-related revenue 

Year Ended December 31,  
2019 

2018 

2020 

 249.0   $ 
 10.3   
 16.4   
 11.0   
 286.7   $ 

 248.8   $ 
 (6.6)  
 18.1   
 13.3   
 273.6   $ 

 209.2 
 2.1 
 15.3 
 18.7 
 245.3 

  $ 

  $ 

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.  

(2)  Represents  the  federal  alternative  fuel  tax  credit,  that  we  refer  to  as  AFTC,  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. 

Key Operating Data 

In evaluating our operating performance, our management focuses primarily on: (1) the amount of RNG, CNG and 
LNG GGEs delivered (which we define as (i) the volume of GGEs we sell to our customers as fuel, plus (ii) the volume 
of GGEs 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 GGEs sold as CNG by our joint venture with Mansfield Ventures, LLC, Mansfield 
Clean Energy Partners, LLC (“MCEP”), (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, 2018, 2019 and 2020: 

Gasoline gallon equivalents delivered (in millions) 
CNG (1) 
LNG 

Total 

Year Ended December 31,  
2019 
 335.7   
 65.1   
 400.8   

2018 
 299.5   
 66.0   
 365.5   

2020 
 321.0 
 61.5 
 382.5 

RNG sold as vehicle fuel 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 RNG sold as vehicle fuel for the years ended December 31, 2018, 2019 and 2020, were as 
follows: 

Gasoline gallon equivalents of RNG delivered (in millions) 
CNG 
LNG 

Total 

Gasoline gallon equivalents delivered (in millions) 
O&M services 
Fuel (1) 
Fuel and O&M services (2) 

Total 

2018 

Year Ended December 31,  
2019 
 112.5  
 30.8  
 143.3  

 81.5  
 28.6  
 110.1  

2020 
 124.4 
 28.9 
 153.3 

Year Ended December 31,  
2019 
 158.5   
 162.4      
 79.9      
 400.8      

2018 
 157.3   
 133.6      
 74.6      
 365.5      

2020 
 138.5 
 157.6 
 86.4 
 382.5 

36 

 
 
 
 
 
 
 
 
 
 
 
 
     
     
     
  
 
 
 
  
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
     
     
     
  
  
  
 
 
 
 
 
 
 
 
 
 
 
     
     
     
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     
     
     
 
   
   
   
    
    
    
 
RNG sold as vehicle fuel is included in the table above as applicable based on the services provided. GGEs of RNG sold 
as vehicle fuel for the years ended December 31, 2018, 2019 and 2020, were as follows: 

Gasoline gallon equivalents of RNG delivered (in millions) 
Fuel 
Fuel and O&M services (2) 

Total 

Other operating data (in millions) 
Station construction cost of sales 
Gross margin (3) (4) 
Net income (loss) attributable to Clean Energy Fuels Corp. (3) 

Year Ended December 31,  
2019 

2020 

2018 

 64.3     
 45.8     
 110.1     

 87.3     
 56.0     
 143.3     

 86.2 
 67.1 
 153.3 

Year Ended December 31,  
2019 

2018 

2020 

  $ 
   $ 
   $ 

 25.1   $ 
 133.5    $ 
 (3.8)   $ 

 23.5   $ 
 132.0    $ 
 20.4    $ 

 24.0 
 106.3 
 (9.9)

(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, 0.4 million and 0.3 million for the years ended December 31, 2018, 2019 and 2020, respectively. 

(2)  Represents GGEs at stations where we provide both fuel and O&M services. 

(3) 

Includes $26.7 million, $47.1 million and $19.8 million of AFTC revenue for the years ended December 31, 2018, 2019, and 2020, respectively. 

(4)  Gross margin includes an unrealized gain (loss) from the change in fair value of commodity swap and customer fueling contracts of $10.3 million, 
$(6.6) million and $2.1 million for the years ended December 31, 2018, 2019 and 2020, respectively. See Note 7 for more information regarding 
the commodity swap and customer contracts. 

2018 -2020 Developments 

Total Joint Venture. On December 21, 2020, we announced a memorandum of understanding with Total to create a 
joint venture to develop carbon negative RNG production facilities in the United States, as well as credit support to build 
additional downstream RNG infrastructure. Total will provide $50.0 million, and we will provide $30.0 million for the 
proposed joint venture. Total will also be providing credit support of $65.0 million to support our development in the RNG 
value chain, including $45.0 million for contracted RNG fueling infrastructure. 

bp Joint Venture. On December 18, 2020, we entered a Memorandum of Understanding (“MOU”) with bp Products 
North  America  Inc,  a  subsidiary  of  bp.  Pursuant  to  the  MOU  the  Company  and  bp  intend  to  create  a  joint  venture  to 
develop, own, and operate RNG production facilities at dairies. Contemporaneous with the execution of the MOU, the 
Company and bp executed a loan agreement whereby bp advanced $50.0 million (in the form of a loan) to fund capital 
costs and expenses incurred prior to formation of the joint venture. We expect that all unpaid principal and accrued interest 
outstanding  under  the  loan  agreement will be  contributed  to  the  joint  venture, provided  that  if  the  joint venture  is  not 
formed by April 30, 2022 the Company is obligated to repay the outstanding principal and accrued interest within five 
days of April 30, 2022.  

Chevron Adopt-a-Port. In June 2020, we entered into an agreement with Chevron Corp. (“Chevron”) to provide truck 
operators serving the ports of Los Angeles and Long Beach with cleaner, carbon negative RNG to reduce emissions. Under 
the agreement, Chevron will provide funding to allow truck operators to subsidize the cost of buying new RNG-powered 
trucks and will supply RNG to our stations near the ports. 

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, the 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. 
AFTC revenue recognized during the year ended December 31, 2020 totaled $19.8 million. The AFTC credit for 2018, 

37 

 
 
 
 
 
 
 
 
 
 
 
 
 
     
     
     
    
    
    
 
 
 
 
 
 
 
 
 
 
 
 
 
     
     
     
 
 
 
2019 and 2020 was equal to $0.50 per GGE of CNG that we sold as vehicle fuel, and $0.50 per diesel gallon of LNG that 
we sold as vehicle fuel. In December 2020 AFTC was extended for vehicle fuel sales made through December 31, 2021. 

Share Repurchase Program. On March 12, 2020, our Board of Directors approved the Repurchase Program for up to 
$30.0 million (exclusive of fees and commissions) of our outstanding common stock. The Repurchase Program does not 
have  an  expiration  date,  does  not  obligate  us  to  acquire  any  specific  number  of  shares,  and  may  be  suspended  or 
discontinued  at  any  time.  As  of  December  31,  2020,  we  had  utilized  $14.5  million  under  the  Repurchase  Program  to 
purchase 7,744,386 shares of our common stock for a total cost of $14.6 million. We have not repurchased any shares 
under the Repurchase Program in 2021. 

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  RNG  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 “Key Customer Markets-Zero Now” in Item 1. 
“Business” of this report for information about these agreements and the structure of the program. 

Debt Repurchase and Repayment.  

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. 

In  December 2018,  we  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 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.  

In May 2020, we repaid the remaining $50.0 million of 7.5% Notes and related accrued and unpaid interest thereon. 

Upon such payment, the 7.5% Notes were paid in full. 

See Note 12 for more information about our outstanding debt. 

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. 

Total Private Placement. On May 9, 2018, we entered into a stock purchase agreement with Total Marketing Services, 
S.E., or TMS, a wholly owned subsidiary of Total, for the sale and issuance to TMS of 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 TMS regarding, among other matters, certain director designation rights we have granted to TMS (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 TMS for the 

38 

shares that were issued and sold, certain limitations on TMS’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. 

NG  Advantage.  In  February  2020,  we  converted  the  principal  and  accrued  interest  under  the  November  2019 
Convertible  Note  (as  defined  in  Note  4)  into  common  units  of  NG  Advantage,  LLC  (“NG  Advantage”)  and  received 
common units pursuant to the guaranty agreement entered in February 2018, resulting in an increase in our controlling 
interest in NG Advantage to 93.3%. 

Debt Level and Debt Compliance 

As of December 31, 2020, we had total indebtedness, excluding finance lease obligations, of $85.8 million in principal 
amount, of which $3.6 million is expected to become due in 2021. Certain of the agreements governing our outstanding 
debt, which are discussed in Note 12, have certain financial and non-financial covenants with which we must comply. As 
of December 31, 2020, 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 for vehicle operators 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 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  increased  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 our vehicle fuels, however, is a relatively new and developing market. As a result, it is difficult to 
accurately  predict  demand for our vehicle fuels,  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 market for our vehicle fuels has led to slow, volatile or 
unpredictable growth in some sectors. For example, to date, adoption and deployment of vehicles using our fuels, in general 
and in certain of our key customer markets, including heavy-duty trucking, have been slower and more limited than we 
anticipated. 

We believe challenging market conditions are caused by a number of factors, including the following: 

•  Low and volatile prices for oil, diesel and gasoline, which decreases the price advantage of our fuels. In addition, 
these  pricing  conditions  have  led  us  to reduce  the  prices we  charge  some  customers for  our  fuels, which  has 
reduced our profit margins. 

•  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. Among other things, we believe many California lawmakers and regulators desire to limit and 
ultimately  discontinue  the  production  and  use  of  internal  combustion  engines  because  such  engines  have 
“tailpipe” emissions. 

•  We  believe  the  lack  of  substantial  growth  in  the  heavy-duty  trucking  market  has  been  driven  in  part  by  the 
experience of operators with, or perceptions of, unsatisfactory performance by prior models of heavy-duty truck 

39 

engines, actual or perceived insufficiencies in the financial incentives to convert, and improvements in diesel 
engine technology. If these conditions continue, then the growth levels in this market will continue to be low. We 
believe the newest models of heavy-duty truck engines have substantially addressed concerns with prior models. 
Further, we  have  launched  our  Zero  Now  truck  financing  program  and the  Chevron Adopt-a-Port  program  to 
combat operator concerns, but these programs may not ultimately be successful. 

To the extent these or other factors have contributed to curtailed demand or slowing growth in the market for our 
vehicle fuels, 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 market for our vehicle fuels generally. Moreover, we believe 
these  factors  have  materially  contributed  to  the  volatility  and  declines  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,  and  public  transit,  are  well-suited  for  the  adoption  of  our  vehicle  fuels  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 
RNG vehicle fuel will result in increased demand for this fuel, resulting in our continued delivery of increasing volumes 
of RNG 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 diesel vehicles. If these projections materialize, we believe 
there will be growth in the consumption of our vehicle fuels 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,  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  vehicle  fuel  sales,  natural  gas  commodity  prices,  station  construction  sales,  sales  of  Environmental  Credits,  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 
commodity prices, station construction and labor costs, 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. Such 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. 

These  significant  fluctuations  in  our  operating  results  may  render  period-to-period  comparisons  less  meaningful, 
especially  given  the  current  uncertainties  related  to  the  ongoing  COVID-19  pandemic,  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 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. 

See “Results of Operations” below for more information about our performance in 2019 and 2020. 

Volume. The amount of RNG and conventional natural gas, in the form of CNG and LNG, that we delivered decreased 

by 4.6% from 2019 to 2020 due to the effect of COVID-19. 

40 

While total volume declined due to the effect of COVID-19, the amount of RNG we sell for vehicle fuel, which is 
delivered in the form of CNG or LNG, has experienced rapid growth in recent years, and increased by 7% from 2019 to 
2020. We believe the increased demand for RNG is attributable to the dramatic reduction in the amount of climate-harming 
greenhouse gas that can be achieved through the use of 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 expect to invest in production projects 
to help ensure that we have adequate supply of RNG, and we are pursuing development and ownership of livestock waste 
ADG projects on our own and with partners including Total and bp. 

Environmental 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 2020 market prices for RINs were as high as 
approximately  $2.13  and  as  low  as  approximately  $0.80.  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, prices for and use of oil, diesel or gasoline, 
the inclusion of additional qualifying fuels in the programs, increased production levels of other fuels in the programs, or 
other 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 
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. 

Risk Management Activities 

From time to time, we enter into 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 commodity may increase above the natural gas 
commodity 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 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 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 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-

41 

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  (“U.S. GAAP”).  The 
preparation of consolidated financial statements in conformity with U.S. 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 
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 and conventional natural gas, in the form of CNG and 

LNG, 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 GGEs 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 certain customer fueling contracts 
under our  Zero  Now  truck  financing  program.  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 existing and 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. 

42 

We recognize station construction revenue over time as we perform under these contracts because of the continual 
transfer of control of the goods to the customer, which 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 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. 

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. 

43 

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, 2020, we performed 
a quantitative impairment assessment for the reporting unit as described above. In this test, the fair value of the reporting 
unit substantially exceeded its carrying value. 

We  evaluated  the  volatility  in  the  market  price  of  our  common  stock  subsequent  to  our  annual  test  date  through 
December 31, 2020, 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, 2020. 

If a significant 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 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 U.S. 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 

44 

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 
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 commodity swaps and customer contracts, 

and warrants, all of which require 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 2020 and 2019. Historical results are not indicative of the 

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

45 

2020 Compared to 2019 

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. 

Statements 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 
Gain (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. 

Year Ended  
December 31,  

2019 

2020 

 86.7 %  
 13.3   
 100.0   

 86.4 % 
 13.6  
 100.0  

 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 %  

 55.4  
 8.1  
 —  
 23.5  
 16.3  
 103.3  
 (3.4) 
 (2.5) 
 0.5  
 1.0  
 (0.1) 
 0.4  
 0.2  
 (3.9) 
 (0.1) 
 (4.0) 
 0.6  
 (3.4)% 

Revenue.     Revenue  decreased  by  $52.3  million to  $291.7  million for  2020,  from  $344.1  million  for  2019.  This 
decrease was primarily due a decrease in volume-related revenue and lower AFTC revenue, partially offset by the favorable 
change in fair value of our commodity swap and customer contracts entered into in connection with our Zero Now truck 
financing program and an increase in station construction sales.  

Volume-related  revenue,  excluding  the  effect  of  the  change  in  fair  value  of  our  commodity  swap  and  customer 
contracts entered into in connection with our Zero Now truck financing program, decreased by $37.2 million between 
periods, primarily attributable to COVID-19 which resulted in a decrease in gallons delivered and a lower effective price 
per gallon delivered. Volume-related revenue was favorably impacted by $8.7 million 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, as 
we recognized an unrealized loss of $6.6 million in 2019 compared to an unrealized gain of $2.1 million in 2020 (see 
Note 7 for more information). 

Our effective price per gallon charged decreased by $0.06 per gallon to $0.64 per gallon in 2020 compared to $0.70 
in 2019, 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 and conventional natural gas and any related Environmental 
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. The decrease in our effective price per gallon was due to decreases 

46 

 
 
 
 
 
 
 
 
  
 
 
 
  
     
     
  
  
    
   
  
    
   
  
  
  
  
    
   
  
    
   
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
 
in natural gas prices and the fuel price mix, which is based on the variation of fuel types and locations where we deliver 
fuel. 

Station construction sales increased by $3.5 million between periods, due to increased construction activities. 

AFTC revenue decreased by $27.3 million between periods due to our recognition in 2019 of AFTC revenue for the 

vehicle fuel we sold in 2018 and 2019. In 2020, we recognized AFTC revenue for the vehicle fuel we sold in 2020. 

Cost of sales.    Cost of sales decreased by $26.7 million to $185.4 million in 2020, from $212.1 million in 2019. This 
decrease was primarily due to a decrease in gallons delivered during 2020 and a lower effective cost per gallon. These 
decreases were partially offset by a $0.5 million increase in the cost of station construction activities. 

Our effective cost per gallon decreased by $0.05 per gallon to $0.42 per gallon in 2020 compared to $0.47 per gallon 
in 2019. Our effective cost per gallon is defined as the total costs associated with delivering our fuels, including 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 commodity 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, decreased from income of $1.0 million in 2019, to income of $0.0 million in 2020 due to 
a change in the estimated fair value. The warrants expired unexercised on July 2, 2020. 

Selling, general and administrative.    Selling, general and administrative expenses decreased by $4.9 million to $68.5 
million in 2020, from $73.4 million in 2019. This decrease was primarily driven by reduced activities and cost reductions 
due to the effect of COVID-19, including lower advertising and travel expenses. 

Depreciation and amortization.    Depreciation and amortization decreased by $1.9 million to $47.7 million in 2020, 

from $49.6 million in 2019, primarily due to a lower amount of depreciable assets. 

Interest expense.    Interest expense decreased by $0.2 million to $7.3 million in 2020, from $7.6 million in 2019. This 
decrease was primarily due to a reduction of outstanding indebtedness between periods, partially offset by a $1.2 million 
loss on extinguishment of debt that is included in interest expense. 

Other income (expense), net.    Other income (expense), net, changed from income of $2.0 million in 2019 to income 

of $3.0 million in 2020, primarily due to gains recorded from disposal of certain assets. 

Loss from equity method investments.    Loss from equity method investments increased by $0.0 million to $0.2 million 
in 2020, from $0.1 million in 2019, primarily due to the operating results of SAFE&CEC S.r.l. being negatively affected 
by the COVID-19 pandemic partially offset by improved operating results from MCEP. 

Gain from sale of certain assets of subsidiary.   In 2020, we recorded a gain of $1.1 million compared to a gain of 
$7.5 million in 2019 as a result of the satisfaction of specified performance criteria in each of 2019 and 2020 related to the 
assets sold in the bp Transaction in accordance with the related Amended Asset Purchase Agreement. 

Gain from formation of equity method investment.    In 2020, we recorded a gain of $0.7 million related to the release 
of costs accrued in satisfaction of commitments made in connection with the CEC Combination. There was no comparable 
gain or loss in 2019. 

Income tax expense.    Income tax expense decreased by $0.5 million to $0.3 million in 2020 from $0.9 million in 
2019, primarily due a decrease in deferred taxes associated with goodwill and a reduction in the Company’s expected state 
tax expense. 

47 

Loss attributable to noncontrolling interest.    In 2020, we recorded a $1.7 million loss for the noncontrolling interest 
in the net loss of NG Advantage, compared to a $7.2 million loss for 2019. The Company’s relevant noncontrolling interest 
in NG Advantage represented a 35.4% minority interest during 2019 and a 6.7% minority interest during 2020. 

Seasonality and Inflation 

To some extent, we experience seasonality in our results of operations. Some of our customers tend to consume more 
of our vehicle fuels in the summer months, when buses and other fleet vehicles use more fuel to power their air conditioning 
systems, which typically translate to an increased volume of fuel delivered in the summer months. In addition, 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; 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 vehicle fuel  sales,  station  construction  sales,  sales  of  RINs  and  LCFS 
Credits  and  recognition of government  credits,  the  effects  of  COVID-19, grants  and  incentives,  if  any; fluctuations  in 
commodity, station construction and labor costs; Environmental 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 $61.0 million in 2020, compared to $12.3 million in 
2019. The increase in cash provided by operating activities was primarily attributable to AFTC revenues, partially offset 
by other changes in working capital resulting from the timing of receipts and payments of cash in 2020, and $7.8 million 
used to terminate a contract between NG Advantage and bp. 

Investing  Activities.  Cash  provided  by  investing  activities  was  $24.2  million  in  2020,  compared  to  cash  used  in 
investing activities of $1.5 million in 2019. The change was primarily attributable to an increase in net maturities of short-
term  investments  in  2020  compared  to  2019  and  lower  capital  expenditures,  partially  offset  by  lower  proceeds  from 
property and equipment disposals and lower net earn-out proceeds received in connection with the bp Transaction. 

Financing  Activities.  Cash  used  in  financing  activities  was  $18.7  million  in  2020,  compared  to  cash  provided  by 
financing  activities  of $7.7 million  in  2019.  Cash  used  in financing  activities  in  2020 was primarily attributable  to an 
increase  in  repayments  of  debt  instruments  and  finance  lease  obligations  due  to  repayment  of  the  7.5%  Notes  and 
repurchases of common stock, partially offset by proceeds received from debt instruments. Cash provided by financing 
activities  in  2019  was primarily  attributable  to proceeds from debt  instruments,  partially offset by  repayments of  debt 
instruments and finance lease obligations. 

48 

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; RNG production facilities; debt repayments and repurchases; repurchases 
of  common  stock;  purchases  of  heavy-duty  trucks  that  use  our  fuels;  additions  or  modifications  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 vehicles for our customers; 
any  investments  in  other  entities;  any  mergers  or  acquisitions,  including  acquisitions  to  expand  our  RNG  production 
capacity; 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 $27.5 million in capital expenditures in 2021. These capital expenditures 
primarily relate to the construction of fueling stations, IT software and equipment and LNG plant costs and we expect to 
fund these expenditures primarily through cash on hand and cash generated from operations.  

In addition, NG Advantage may spend up to $0.4 million in 2021 to purchase additional equipment in support of its 
operations  and  customer  contracts.  Although  NG  Advantage  has  sought  financing  from  third  parties  for  capital 
expenditures, we have provided and may continue to provide financing for these capital expenditures. 

We  had  total  indebtedness,  consisting of our debt  and  finance  leases, of  approximately  $89.2  million  in  principal 
amount as of December 31, 2020, of which approximately $4.5 million, $54.5 million, $9.8 million, $10.4 million, $1.7 
million  and  $8.3  million  is  expected  to  become  due  in  2021,  2022,  2023,  2024,  2025  and  thereafter,  respectively. 
Importantly, $50.0 million of such indebtedness was “Preformation Funding” provided by bp to fund capital costs and 
expenses incurred prior to formation of the bpJV. All such Preformation Funding, including accrued interest thereon, will 
be contributed to the bpJV, at which time it will no longer be outstanding indebtedness. We will be required to repay the 
Preformation Funding, including accrued interest at LIBOR plus 4.33%, if the bpJV is not formed by April 30, 2022. 
Based on outstanding debt balances and applicable interest rates as of December 31, 2020, we expect our total interest 
payment obligations relating to our indebtedness to be $2.3 million for the year ending December 31, 2021. We plan to 
and believe we are able to make all expected principal and interest payments in the next 12 months. 

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. 

Further,  in  2021  we  anticipate  deploying  up  to  approximately  $100.0  million  to  develop  dairy  RNG  production 
projects and up to approximately $75.0 million for fueling stations that will support long-term contracted RNG fueling 
volume. 

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, 
and sales of assets. As of December 31, 2020, we had total cash and cash equivalents and short-term investments of $138.5 
million, compared to $106.1 million as of December 31, 2019. 

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, as of December 31, 2020, permit us to incur up to an additional $94.9 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 

49 

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 12 of this report for more information. 

Subject  to  the  following  paragraph,  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, share repurchases 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,  the  effects  of  COVID-19,  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  fuel  sales  and  other  volume-related  activity,  the  effects  of  COVID-19,  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. 

If we deploy additional capital to develop dairy RNG production projects and fueling stations to support contracted 
RNG fueling volume as described above under “Liquidity and Capital Resources – Capital Expenditures, Indebtedness 
and Other Uses of Cash,” we will be required to raise significant additional capital during 2021. 

We  may  raise  additional  capital  through  one  or  more  sources,  including,  among  others,  obtaining  equity  capital, 
including through offerings of our common stock or other securities, obtaining new or restructuring existing debt, selling 
assets, 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 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, 2020. 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 
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 (1) 
Finance lease obligations (2) 
Operating lease commitments (3) 
Long-term take-or-pay contracts (4) 
Long-term supply contract (5) 
Construction contracts (6) 

Total 

  $ 

Total 
 95,863   $ 
 3,780  
 41,060  
 3,881  
 1,226  
 10,122  
  $   155,932   $ 

Less than 
1 year 

      1 - 3 years        3 - 5 years 

5 years 

  More than 

 5,820   $ 
 990  
 4,707  
 1,367  
 —  
 10,122  
 23,006   $ 

 69,806   $ 

 11,896   $ 

 1,414  
 7,501  
 2,514  
 1,226  
 —  
 82,461   $ 

 1,376  
 7,264  
 —  
 —  
 —  
 20,536   $ 

 8,341 
 — 
 21,588 
 — 
 — 
 — 
 29,929 

(1)  Consists of long-term debt to finance acquisitions and equipment purchases, including future interest payments. For our variable-rate debt 
(which consists of the SG Facility and the bp Loan, each as defined in Note 12), we have assumed an interest rate of 1.4% (LIBOR plus 
1.30%) and 4.6% (LIBOR plus 4.33%), respectively, as of December 31, 2020. 

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

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

50 

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

(5)  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. 

(6)  Consists of our obligations to fund various fueling station construction projects, net of amounts funded through December 31,  2020 and 

excluding contractual commitments related to station sales contracts. 

Off-Balance Sheet Arrangements 

As of December 31, 2020, 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 $29.4 million; 

•  One 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, 2020, we had one long-term natural gas purchase contract with a take-or-pay commitment, which 
requires us to purchase minimum volumes of natural gas at index-based prices and expires in June 2022. Additionally, as 
of  December  31,  2020,  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, which was amended in June 2020, 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 $15.0 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, 2020, 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. 

51 

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 $94.9 million, $94.0 million and $74.6 million of our cost of sales in 2018, 2019 and 

2020, 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, 2020, we would expect a 
corresponding fluctuation in the fair value of our commodity swap contracts of approximately $3.8 million. 

Foreign Currency Exchange Rate Risk 

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 
10% from the rates as of December 31, 2020, 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, 2020, we had $55.1 million of debt that bears interest at a rate equal to LIBOR plus a margin 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 $0.6 million. 

The term credit agreement with SG permits the Company to draw loans from time to time through the beginning of 
January 2022. These loans, as well as our bp Loan, 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 agreements, including SG and bp, 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, 2020. 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 

52 

covered by the below quarterly data. The quarterly data should be read together with our consolidated financial statements 
and related 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: 

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 

(In thousands, except per share data, Unaudited) 
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 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
  
  
     
       
       
       
  
 
  
  
  
 
  
  
 
  
   
  
   
  
   
  
  
 
  
   
  
   
  
   
  
  
 
  
  
 
  
  
  
 
  
  
  
  
 
  
  
 
  
  
 
  
  
 
  
  
 
  
  
 
  
  
  
  
 
  
  
  
  
 
  
  
  
  
 
  
  
  
  
 
  
  
 
  
  
  
  
 
  
  
 
  
  
  
 
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 
Gain 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 

Three Months Ended 

  March 31,     June 30,  

  September 30,     December 31, 

2020 

2020 

2020 

2020 

   $  75,702   $  50,426   $ 
       10,304  
   86,006  

    9,448  
   59,874  

 60,310   $ 
 10,576  
 70,886  

 65,516 
 9,442 
 74,958 

   46,673  
    6,259  
 405  
   18,259  
   11,924  
   83,520  
    2,486  
    (2,210) 
 381  
 (1) 
 145  
 176  
 —  
 977  
 (78) 
 899  
 805  

   33,054  
    5,499  
 (445) 
   16,892  
   12,050  
   67,050  
    (7,176) 
    (1,841) 
 273  
    2,287  
 (502) 
 —  
 —  
    (6,959) 
 (78) 
    (7,037) 
 301  

  $   1,704   $  (6,736)  $ 
 0.01   $   (0.03)  $ 
  $ 
 0.01   $   (0.03)  $ 
  $ 

 38,767  
 6,522  
 —  
 16,639  
 11,744  
 73,672  
 (2,786) 
 (1,009) 
 427  
 919  
 (11) 
 —  
 —  
 (2,460) 
 (79) 
 (2,539) 
 268  
 (2,271)  $ 
 (0.01)  $ 
 (0.01)  $ 

 43,211 
 5,425 
 — 
 16,726 
 11,964 
 77,326 
 (2,368)
 (2,288)
 264 
 (180)
 207 
 887 
 700 
 (2,778)
 (74)
 (2,852)
 291 
 (2,561)
 (0.01)
 (0.01)

54 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
  
  
  
   
       
       
       
  
  
  
 
  
  
 
  
   
  
   
  
   
  
 
  
   
  
   
  
   
  
 
  
  
 
  
  
 
  
  
  
  
 
  
  
 
  
  
 
  
  
 
  
  
 
  
  
 
  
  
  
  
 
  
  
  
 
  
  
  
  
 
  
  
  
  
 
  
  
  
  
 
  
  
  
 
  
  
  
  
 
  
  
  
 
  
  
  
  
 
 
 
 
 
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 

56
58
59
60
61
62
63

103

55 

  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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, 2020 and 2019, 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, 2020, 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, 2020, 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, 2020 and 2019, and the results of its operations and its cash flows for each 
of the years in the three-year period ended December 31, 2020, 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, 2020 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 1 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. 

56 

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. 

Critical Audit Matter 

The critical audit matter communicated below is a matter arising from the current period audit of the consolidated financial 
statements that was communicated or required to be communicated to the audit committee and that: (1) relates to accounts 
or  disclosures  that  are  material  to  the  consolidated  financial  statements  and  (2)  involved  our  especially  challenging, 
subjective, or complex judgments. The communication of a critical audit matter does not alter in any way our opinion on 
the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, 
providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates. 

Fair value of commodity swaps 

As  discussed  in  Note  7  to  the  consolidated  financial  statements,  the  Company  used  the  income  approach  to  value  its 
derivative  assets  associated  with  its  commodity  swap  contracts.  As  of  December  31,  2020,  the  Company  recorded 
derivative assets related to the commodity swaps of $5,648 thousand. The Company used a discounted cash flow model 
to estimate the fair value of these commodity swaps, classified as Level 3 in the fair value hierarchy because they are 
valued using unobservable inputs. 

We identified the assessment of the measurement of fair value for the commodity swaps as a critical audit matter due to 
the significant measurement uncertainty associated with the fair value of such instruments. There was a high degree of 
subjective  auditor  judgment  in  assessing  the  significant  unobservable  inputs,  such  as  commodity  forward  curves  and 
differentials applied to the commodity forward curves.  

The following are the primary procedures we performed to address this critical audit matter. We evaluated the design and 
tested the operating effectiveness of certain internal controls related to the Company’s derivatives process. This included 
controls related to the (1) development of the significant unobservable inputs above, including monitoring of changes to 
the inputs, and (2) relevance and reliability of observable inputs reasonably available. We confirmed directly with the 
counter-parties to the commodity swap contracts and inspected the swap contracts to evaluate the existence and accuracy 
of inputs into the valuation model, including confirming the relevant terms of the swap contracts. We involved financial 
instrument valuation professionals with specialized skills and knowledge, who assisted in assessing the fair value of the 
commodity swaps by developing an estimate of the fair value of the commodity swaps using commodity forward curves 
and differentials applied to the commodity forward curves obtained from publicly available market data, and compared 
the result to the Company’s fair value estimates. 

/s/ KPMG LLP 

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

Irvine, California 
March 9, 2021 

57 

CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

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

December 31,    
2019 

December 31,  
2020 

Current assets: 

Assets 

Cash, cash equivalents and current portion of restricted cash 
Short-term investments 
Accounts receivable, net of allowance of $2,412 and $1,335 as of December 31, 2019 and 2020, 
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 15) 
Stockholders’ equity: 

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; 204,723,055 shares and 198,491,204 
shares issued and outstanding as of December 31, 2019 and 2020, 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 

$ 

 49,222   
 56,929   

$ 

 108,977 
 29,528 

 61,784 
 23,655 
 28,100 
 9,404 
 1,591 
 263,039 
 25,967 
 290,911 
 11,000 
 27,299 
 4,057 
 27,962 
 64,328 
 464 
 715,027 

 3,592 
 840 
 2,822 
 17,310 
 52,637 
 2,642 
 — 
 79,843 
 82,088 
 2,552 
 23,698 
 3,996 
 192,177 

 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   

$ 

$ 

 —   

 — 

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

$ 

 20 
 1,191,791 
 (678,096)
 (209)
 513,506 
 9,344 
 522,850 
 715,027 

$ 

$ 

$ 

See accompanying notes to consolidated financial statements. 

58 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
    
 
  
 
 
  
  
 
  
  
 
  
  
 
  
  
 
  
  
 
  
  
 
  
  
 
 
 
 
  
  
 
  
  
 
  
  
 
  
  
 
  
  
 
  
  
 
  
  
 
 
  
   
  
  
 
  
   
  
  
 
 
 
 
 
 
 
 
  
  
 
  
  
 
  
  
 
 
 
 
  
  
 
 
 
 
 
 
 
 
 
 
  
  
 
  
  
 
  
   
  
  
 
  
   
  
  
 
  
  
 
  
  
 
  
  
 
  
  
 
  
  
 
  
  
 
  
  
 
  
  
 
 
 
 
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: 

2018 

Year Ended December 31,  
2019 

2020 

  $

 307,839   $ 
 38,580  
 346,419  

 298,469   $ 
 45,596  
 344,065  

 251,954 
 39,770 
 291,724 

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 
Gain (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.  
Net income (loss) attributable to Clean Energy Fuels Corp. per share:  

  $

 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   $ 

 161,705 
 23,705 
 (40)
 68,516 
 47,682 
 301,568 
 (9,844)
 (7,348)
 1,345 
 3,025 
 (161)
 1,063 
 700 
 (11,220)
 (309)
 (11,529)
 1,665 
 (9,864)

Basic 
Diluted 

Weighted-average common shares outstanding: 

Basic 
Diluted 

  $
  $

 (0.02)  $ 
 (0.02)  $ 

 0.10   $ 
 0.10   $ 

 (0.05)
 (0.05)

   180,655,435  
   180,655,435  

   204,573,287  
   205,987,509  

   200,657,912 
   200,657,912 

See accompanying notes to consolidated financial statements. 

59 

 
 
 
 
 
 
 
 
 
 
 
 
  
     
    
    
    
      
      
  
 
  
  
  
 
  
  
  
 
  
   
  
   
  
  
 
  
   
  
   
  
  
 
  
  
  
 
  
  
  
 
  
  
  
 
  
  
  
 
  
  
  
 
  
  
  
 
  
  
  
 
  
  
  
 
  
  
  
 
  
  
  
 
  
  
  
 
  
  
  
 
  
  
  
 
  
  
  
 
  
  
  
 
  
  
  
 
  
  
  
  
   
  
   
  
  
 
  
   
  
   
  
  
 
 
 
 
 
 
CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

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

Year Ended December 31, 2018 

Year Ended December 31, 2019 

Year Ended December 31, 2020 

    Clean Energy    Noncontrolling     
   Fuels Corp.    

Interest 

     Clean Energy    Noncontrolling     
   Fuels Corp.    

Interest 

    Clean Energy     Noncontrolling     
   Fuels Corp.    

Interest 

Total 

Total 

Total 

Net income 
(loss) 
Other 
comprehensive 
income (loss), 
net of tax: 
Foreign 
currency 
translation 
adjustments 
net of $0 tax 
in 2018, 2019 
and 2020 
Unrealized 
gains on 
available-for-
sale 
securities, net 
of $0 tax in 
2018, 2019 
and 2020 
Total other 
comprehensive 
income (loss) 
Comprehensive 
income (loss) 

  $ 

  $ 

 (3,790)  $ 

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

 20,421    $ 

 (7,162)   $ 13,259    $ 

 (9,864)  $ 

 (1,665)  $  (11,529)

 (1,305) 

 —   

    (1,305)  

 505   

 —   

 505   

 1,355   

 —   

 1,355 

 54   

 —   

 54   

 67   

 —   

 67   

 2   

 —   

 2 

 (1,251) 

 —   

    (1,251)  

 572   

 —   

 572   

 1,357   

 —   

 1,357 

 (5,041)  $ 

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

 20,993    $ 

 (7,162)   $ 13,831    $ 

 (8,507)  $ 

 (1,665)  $  (10,172)

See accompanying notes to consolidated financial statements. 

60 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
 
 
  
 
 
 
 
 
 
 
 
  
   
  
    
  
    
  
   
  
    
  
   
  
   
  
   
  
  
 
  
  
  
 
  
  
 
  
 
  
  
  
  
 
  
  
 
  
 
  
  
  
  
  
  
  
  
 
 
 
CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

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

Common stock  

  Additional  
     Paid-In 
Capital 

Shares 

   Amount  

 151,650,969    $

 15    $ 1,111,432    $ 

Deficit 
 (683,570)  $ 

  Accumulated   

Other 

  Noncontrolling  

Total 

    Accumulated     Comprehensive      Interest in 
Subsidiary 

Income (Loss)  

    Stockholders’ 

Equity 

 —   
 151,650,969   

 —   
 15   

 —   
   1,111,432   

 (1,293) 
 (684,863) 

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 
Stock-based compensation 
Net income (loss) 
Other comprehensive income 
Increase in ownership in 
subsidiary 

Balance, December 31, 2019 
Issuance of common stock 
Repurchase of common stock 
Stock-based compensation 
Net loss 
Other comprehensive income 
Increase in ownership in 
subsidiary 

 51,948,923   
 —   
 —   
 —   

 —   
 203,599,892   
 1,123,163   
 —   
 —   
 —   

 —   
 204,723,055   
 1,512,535   
 (7,744,386) 
 —   
 —   
 —   

 —   

 5   
 —   
 —   
 —   

 —   
 20   
 —   
 —   
 —   
 —   

 —   
 20   
 —   
 —   
 —   
 —   
 —   

 81,766   
 5,307   
 —   
 —   

 264   
   1,198,769   
 309   
 3,880   
 —   
 —   

 228   
   1,203,186   
 1,683   
 (14,647) 
 2,957   
 —   
 —   

 —   
 —   
 (3,790) 
 —   

 —   
 (688,653) 
 —   
 —   
 20,421   
 —   

 —   
 (668,232) 
 —   
 —   
 —   
 (9,864) 
 —   

 (887)  $ 

 22,668    $ 

 449,658 

 —   
 (887) 

 —   
 —   
 —   
 (1,251) 

 —   
 (2,138) 
 —   
 —   
 —   
 572   

 —   
 (1,566) 
 —   
 —   
 —   
 —   
 1,357   

 —   
 22,668   

 —   
 —   
 (5,393) 
 —   

 (264) 
 17,011   
 —   
 —   
 (7,162) 
 —   

 (228) 
 9,621   
 —   
 —   
 —   
 (1,665) 
 —   

 (1,293)
 448,365 

 81,771 
 5,307 
 (9,183)
 (1,251)

 — 
 525,009 
 309 
 3,880 
 13,259 
 572 

 — 
 543,029 
 1,683 
 (14,647)
 2,957 
 (11,529)
 1,357 

Balance, December 31, 2020 

 198,491,204    $

 —   
 20    $ 1,191,791    $ 

 (1,388) 

 —   

 (678,096)  $ 

 —   
 (209)  $ 

 1,388   
 9,344    $ 

 — 
 522,850 

See accompanying notes to consolidated financial statements. 

61 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     
     
 
  
 
 
 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
 
 
 
 
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
  
  
 
 
 
 
 
  
  
 
 
 
 
 
  
  
  
  
  
  
  
  
  
 
 
 
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 operating activities: 

Year Ended December 31,  
2019 

2018 

2020 

  $ 

 (9,183)  $ 

 13,259    $ 

 (11,529)

Depreciation and amortization 
Provision for credit losses 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 
Loss on extinguishment of debt 
Gain from sale of certain assets of subsidiary 
Loss (gain) from formation of equity method investment 
Loss from equity method investments 
Non-cash lease expense 
Deferred income taxes 
Changes in operating assets and liabilities: 

Accounts and other receivables 
Inventory 
Prepaid expenses and other assets 
Operating lease liabilities 
Accounts payable 
Deferred revenue 
Accrued liabilities and other 
Net cash provided by 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 
Disbursements for loans receivable 
Payments on and proceeds from sales of loans receivable 
Cash received from sale of certain assets of subsidiary, net 
Investments in other entities 
Proceeds from disposal of property and equipment 

Net cash provided by (used in) investing activities 

Cash flows from financing activities: 

Issuance of common stock 
Repurchase of common stock 
Fees paid for issuance of common stock 
Fees paid for debt issuance costs 
Proceeds from debt instruments 
Repayments of debt instruments and finance lease obligations 
Payments of debt extinguishment costs 

Net cash provided by (used in) financing activities 

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

Net increase in cash, cash equivalents and restricted cash 
Cash, cash equivalents and restricted cash, beginning of period 
Cash, cash equivalents and restricted cash, end of period 
Supplemental disclosure of cash flow information: 

Income taxes paid  
Interest paid, net of $244, $441 and $57 capitalized, respectively 

 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   

 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) 

 83,438   
 —   
 (909) 
 (95) 
 17,243   
 (194,886) 
 —   
 (95,209) 
 274   
 (2,584) 
 37,208   
 34,624    $ 

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

 47,682 
 2,662 
 2,957 
 (2,175)
 (46)
 (2,875)
 1,249 
 (1,063)
 (700)
 161 
 2,756 
 120 

 53,784 
 108 
 5,275 
 (3,141)
 (9,337)
 (10,976)
 (13,871)
 61,041 

 (74,292)
 101,850 
 (13,273)
 (535)
 1,567 
 4,830 
 (650)
 4,673 
 24,170 

 1,683 
 (14,647)
 — 
 (131)
 65,860 
 (70,399)
 (1,023)
 (18,657)
 201 
 66,755 
 53,222 
 119,977 

 257    $ 
 16,751    $ 

 36    $ 
 6,788    $ 

 8 
 5,622 

  $ 

  $ 
  $ 

See accompanying notes to consolidated financial statements. 

62 

 
 
 
 
     
     
     
 
 
 
 
 
 
 
  
 
  
 
  
 
  
  
  
 
  
  
  
 
  
  
  
 
  
  
  
 
  
  
  
 
  
  
  
 
  
  
  
 
  
  
  
 
  
  
  
 
  
  
  
 
 
 
 
 
 
 
 
 
  
   
  
 
  
 
  
  
  
 
  
  
  
 
  
  
  
 
 
 
 
 
  
  
  
 
  
  
  
 
  
  
  
 
  
  
  
 
  
   
  
   
  
  
 
  
  
  
 
  
  
  
 
  
  
  
 
  
  
  
 
  
  
  
 
  
  
  
 
  
  
  
 
  
  
  
 
  
  
  
 
  
   
  
   
  
  
 
  
  
  
 
 
 
 
 
  
  
  
 
 
 
 
 
  
  
  
 
  
  
  
 
 
 
 
 
  
  
  
 
  
  
  
 
  
  
  
 
  
  
  
 
  
   
  
   
  
  
 
 
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 renewable and conventional natural gas as alternative fuels for vehicle fleets and related fueling solutions to its 
customers, primarily in the United States and Canada. 

The Company’s principal business is supplying renewable natural gas (“RNG”) and conventional natural gas, in the 
form of compressed natural gas (“CNG”) and liquefied natural gas (“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,  the  Company  also designs,  builds, operates  and  maintains  fueling  stations;  sells  and 
services compressors and other equipment used in fueling 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.  

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 income (loss) and cash flows 
in  accordance  with  accounting  principles  generally  accepted  in  the  United  States  of  America  (“U.S. GAAP”).  All 
intercompany accounts and transactions have been eliminated in consolidation. 

 Use of Estimates 

The preparation of consolidated financial statements in conformity with U.S. 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. 

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, 2019 and 2020 (in thousands): 

Raw materials and spare parts 

Total inventory 

  $ 
  $ 

2019 
 29,874   $ 
 29,874   $ 

2020 
 28,100 
 28,100 

63 

 
     
     
 
CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

Derivative Instruments and Hedging Activities 

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 7 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 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  $0.7  million,  $1.6  million,  and  $0.0  million  for  the years  ended  December  31,  2018,  2019,  and  2020, 
respectively. 

Leases 

On January 1, 2019, the Company adopted Accounting Standards Codification (“ASC”) 842, Leases, whereby leases 

are classified as either operating leases or finance leases. 

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 
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.  Rent 
expense totaled $6.6 million for the year ended December 31, 2018. 

64 

CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

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. 

There  were no  impairments of  the  Company’s  long-lived  assets  in  the years  ended December 31, 2018, 2019  and 

2020.  

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, 2019 and 2020 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 

  $ 

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

  $ 

 1,229   $ 

2020 
 5,376 
 4,384 
 2,700 
 860 
 13,320 
 (12,856)
 464 

Amortization  expense  for  intangible  assets  was  $1.4  million,  $1.0  million,  and  $0.8  million  for  the years  ended 
December 31, 2018, 2019, and 2020, respectively. Estimated amortization expense subsequent to the year ended December 
31, 2020 is approximately $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. 

65 

 
 
 
 
 
 
 
 
     
     
 
  
  
 
  
  
 
  
  
 
  
  
 
  
  
 
CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

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,  2019  and  2020,  the  Company  utilized  the  quantitative  approach  and 

concluded there were no indicators of impairment to goodwill. 

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

Balance as of December 31, 2018 
Balance as of December 31, 2019 
Balance as of December 31, 2020 

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, resulting in an increase in accumulated deficit of $1.3 million. 

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 and conventional natural gas, in the form 
of CNG and LNG, O&M services and RINs and LCFS Credits in addition to changes in fair value of the Company’s 
derivative instruments associated with providing fuel to customers under contracts. 

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 

66 

 
 
 
 
 
 
 
 
 
CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

gasoline gallon equivalents of fuel 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 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 7  for  more 
information about these derivative instruments. For the years ended December 31, 2018, 2019 and 2020, changes in the 
fair value of commodity swaps and customer contracts amounted to a gain (loss) of $10.3 million, $(6.6) million, and $2.1 
million, respectively.  

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 
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 

67 

CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

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 Fuel 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 Fuel 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, 2020. 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 2018, 2019 and 2020. 

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. 

As a result of the 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, 

68 

 
 
CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

the Internal Revenue Service (“IRS”) approved, and the Company recognized as revenue, $1.5 million of AFTC credit 
claims related to prior years. AFTC was extended in December 2020 and is currently available for vehicle fuel sales made 
through December 31, 2021. 

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 $0.9 million, $1.2 million and $0.0 million for 

the years ended December 31, 2018, 2019 and 2020, 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. 

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 
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. 

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 

69 

CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

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, 2018, 2019 and 2020, foreign exchange transaction gains and 
(losses) were included in “Other income (expense), net” in the accompanying consolidated statements of operations and 
were $(0.0) 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, 2018, 2019 and 2020 was comprised of the Company’s 
foreign currency translation adjustments and unrealized gains and losses on available-for-sale securities. 

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 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 existing incurred loss methodology. The Company adopted this standard in the first quarter 
of 2020. Adoption of this ASU did not have a material impact on the Company’s consolidated financial statements. 

70 

CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

Recently Issued Accounting Standards 

In December 2019, the FASB issued ASU No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for 
Income Taxes. This new standard clarifies and simplifies the accounting for income taxes, including guidance related to 
intraperiod  tax  allocation,  the  recognition  of  deferred  tax  liabilities  for  outside  basis  differences,  the  methodology  for 
calculating  income  taxes  in  an  interim  period,  and  the  application  of  income  tax  guidance  to  franchise  taxes  that  are 
partially based on income. This standard is effective for fiscal years, and interim periods within those years, beginning 
after December 15, 2020, with early adoption permitted in any interim period within that year. The Company will adopt 
this standard in the first quarter of 2021. The Company does not expect adoption of this ASU to have a material impact on 
its consolidated financial statements and related disclosures. 

Note 2 —Revenue from Contracts with Customers 

Disaggregation of Revenue 

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

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

Total revenue 

2018 

2020 

Years Ended December 31,  
2019 
$  286,684   $  273,535   $  245,300 
 26,593 
 19,831 
 — 
$  346,419   $  344,065   $  291,724 

 25,501  
 26,729  
 7,505  

 23,120  
 47,123  
 287  

(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 7 for more information about these derivative instruments. For the years ended December 31, 2018, 2019 and 2020, changes in the fair value of 
commodity swaps and customer fueling contracts amounted to a gain of $10.3 million, a loss of $6.6 million and a gain of $2.1 million, respectively. 

(2) Represents the federal alternative fuel excise tax credit that we refer to as “AFTC”.   

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,  2020,  the  aggregate  amount  of  the  transaction  price  allocated  to  remaining 
performance  obligations  was  $13.0  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,  LLC  (“NG  Advantage”),  for 
equipment that must be installed on customers’ land before 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, 2019 and 2020, these capitalized 

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CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

costs incurred to fulfill contracts were $10.2 million and $10.4 million with accumulated depreciation of $6.3 million and 
$7.1 million, respectively, and related depreciation expense of $2.2 million and $0.8 million for the years ended December 
31, 2019 and 2020, 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 
balance sheets. Changes in the contract asset and liability balances during the year ended December 31, 2020, were not 
materially affected by any factors outside the normal course of business. 

As of December 31, 2019 and 2020, 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 

  $ 

  $ 

  $ 

  $ 

  $ 

2019 
 61,760    $ 

2020 
 61,784 

 455    $ 

 3,777   
 4,232    $ 

 5,329    $ 
 6,339   
 11,668    $ 

 729 
 3,998 
 4,727 

 1,638 
 59 
 1,697 

“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 
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, the age of outstanding receivables, and economic conditions 
that may affect a customer’s ability to pay. 

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 received primarily from customers of NG Advantage in advance of the performance obligations 
and are classified as current or noncurrent based on when the revenue is expected to be recognized. The current portion 
and  noncurrent  portion  of  contract  liabilities  are  included  in  “Deferred  revenue”  and  “Other  long-term  liabilities,” 
respectively, in the accompanying consolidated balance sheets. Billings in excess of revenue recognized of $1.8 million 
and $1.0 million and advance payments of $3.5 million and $0.6 million are classified as current as of December 31, 2019 
and 2020, respectively.  

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CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

Revenue recognized during the year ended December 31, 2019 related to the Company’s contract liability balances 
as of December 31, 2018 was $5.9 million. Revenue recognized during the year ended December 31, 2020 related to the 
Company’s contract liability balances as of December 31, 2019 was $4.8 million. In June 2020, the Company entered into 
a termination letter between NG Advantage and bp (as defined in Note 3) and paid $7.8 million in satisfaction of the 
remaining performance obligations, resulting in a reduction of the Company’s contract liability balance as of December 
31, 2019 of $7.0 million, and a net revenue impact of $(0.8) million. Contract liabilities increased during the year ended 
December 31, 2020 as a result of billings in excess of revenue recognized and advance payments received from customers. 

Note 3 —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 
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”).  

Under the APA, bp was 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. During the year ended 
December 31, 2020, the Company recognized a gross gain of $1.0 million and accrued amounts due to former holders of 
options to purchase membership units in Renewables of $0.1 million as a result of the performance criteria being satisfied 
for year four under the Amended APA. The Company recognized a net gain of $4.8 million, $7.5 million, and $1.1 million 
during the years ended December 31, 2018, 2019 and 2020, respectively, which is included in “Gain from sale of certain 
assets of subsidiary” in the accompanying consolidated statements of operations. Under the Amended APA, bp will pay 
Renewables up to $4.4 million for 2021, year five of the earn-out period. 

As of December 31, 2020, the Company has paid $10.2 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 fueling infrastructure. On October 1, 2018, Renewables and bp amended the bp Supply Agreement 
to extend the term and add additional RNG supply. bp and 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. 

73 

CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

SAFE&CEC S.r.l. 

On November 26, 2017, the Company, through its former subsidiary, IMW Industries Ltd. (formerly known as Clean 
Energy  Compression  Corp.)  (“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  fueling  systems  manufacturing  subsidiaries,  CEC  and  SAFE  S.p.A,  in  a  new 
company,  “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. At 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.  

During the year ended December 31, 2018, 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 “Gain (loss) from formation of equity method investment” in the accompanying consolidated 
statements of operations. During the year ended December 31, 2020, the Company released $0.7 million of this liability 
resulting  in  a  gain  of  $0.7  million  included  in  “Gain  (loss)  from  formation  of  equity  method  investment”  in  the 
accompanying consolidated statements of operations. The Company recorded income (loss) from this investment of $(2.9) 
million,  $0.0  million  and  $(0.2)  million  for  the years  ended  December  31,  2018,  2019  and  2020,  respectively.  The 
Company had an investment balance in SAFE&CEC S.r.l. of $23.7 million and $24.7 million as of December 31, 2019 
and 2020, respectively. 

Note 4 —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 3 for more 

information. 

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 

Year Ended December 31,  
2020 
2019 
 89,535 
 80,886   $ 
 19,008 
 20,525   $ 
 609 
 1,207   $ 
 (306)
 93   $ 

As of December 31, 

2019 
 56,765   $ 
 56,153  
 112,918   $ 

2020 
 60,406 
 58,140 
 118,546 

 51,911   $ 
 11,952  
 63,863   $ 

 55,780 
 11,808 
 67,588 

  $ 
  $ 
  $ 
  $ 

  $ 

  $ 

  $ 

  $ 

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CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

MCEP 

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 $0.2 million, $(0.1) million and $0.1 million for the years ended December 31, 2018, 2019 and 
2020, respectively. The Company had an investment balance in MCEP of $1.6 million as of December 31, 2019 and 2020. 

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. 

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 June 2020, the Company paid bp $7.8 million to terminate a portion of 
the forgoing arrangement. In connection with the foregoing arrangement, 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 plus related fees which was reduced to $15.0 million effective June 24, 2020. 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 64.6%. 

During the year ended December 31, 2019, the Company agreed to lend NG Advantage up to $26.7 million under a 
series of promissory notes that were incorporated into a delayed draw convertible promissory note (the “November 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 promissory notes between NG 
Advantage and the Company, NG Advantage issued to the Company warrants to purchase 2,086,879 common units. 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. 

On February 6, 2020, the Company converted the outstanding 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 from 64.6% to 93.2%. 

75 

CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

On February 29, 2020, NG Advantage issued to the Company 283,019 common units of NG Advantage pursuant to 
the guaranty agreement entered in February 2018, which increased the Company’s controlling interest in NG Advantage 
to 93.3% as of December 31, 2020. 

During the year ended December 31, 2020, NG Advantage borrowed $12.9 million from the Company under a series 
of advance agreements. As of December 31, 2020, NG advantage had an outstanding balance of $12.9 million, plus accrued 
and unpaid interest under the advance agreements. This intercompany transaction has been eliminated in consolidation. 

The Company recorded a loss attributable to the noncontrolling interest in NG Advantage of $5.4 million, $7.2 million 
and $1.7 million for the years ended December 31, 2018, 2019 and 2020, respectively. The noncontrolling interest was 
$9.6 million and $9.3 million as of December 31, 2019 and 2020, respectively. 

Note 5 —Cash, Cash Equivalents and Restricted Cash 

Cash,  cash  equivalents  and  restricted  cash  as  of  December  31,  2019  and  2020  consisted  of  the  following  (in 

thousands): 

Current assets: 
Cash and cash equivalents 
Restricted cash – standby letters of credit 

Total cash, cash equivalents and current portion of restricted cash 

Long-term assets: 
Restricted cash – standby letters of credit 
Restricted cash – held as collateral 

Total long-term portion of restricted cash 

2019 

2020 

 49,207   $ 
 15  
 49,222   $ 

 108,977 
 — 
 108,977 

 4,000   $ 
 —  
 4,000   $ 

 4,000 
 7,000 
 11,000 

  $ 

  $ 

  $ 

  $ 

Total cash, cash equivalents and restricted cash 

  $ 

 53,222   $ 

 119,977 

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 $47.9 million 
and $107.6 million as of December 31, 2019 and 2020, 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 a standby letter of credit that was renewed annually. Long-term restricted cash consisted of a standby 
letter of credit and cash held as collateral for the benefit of a lender to NG Advantage. 

Note 6 — 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. 

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CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

The Company reviews available-for-sale debt securities for 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,  and 
evaluates the current expected credit loss. This evaluation is based on a number of factors, including historical experience, 
market  data,  issuer-specific  factors,  economic  conditions,  and  any  changes  to  the  credit  rating  of  the  security.  As  of 
December  31,  2020,  the  Company  believes  the  carrying  values  for  its  available-for-sale  debt  securities  are  properly 
recorded. 

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 

  $ 

  $ 

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

Short-term investments as of December 31, 2020 consisted of the following (in thousands): 

Amortized 
 Cost 

Gross 
 Unrealized 
 Losses 

Estimated 
 Fair Value 
 2,986 
 33,919 
 19,506 
 518 
 56,929 

 —  $ 
 — 
 (3) 
 — 
 (3)  $ 

Municipal bonds and notes 
Certificates of deposit 

Total short-term investments 

  $ 

  $ 

Note 7 – Derivative Instruments and Hedging Activities 

  Amortized 

 Cost 
 28,998   $ 
 530  
 29,528   $ 

Gross  
Unrealized 
Gains 

Estimated 
 Fair Value 
 28,998 
 530 
 29,528 

 —   $ 
 —  
 —   $ 

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 12 and 13), 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 and 2020, 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. 

77 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     
     
     
 
  
  
  
 
  
  
  
 
  
  
  
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
     
     
     
 
 
 
 
 
 
CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

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

  Gross Amounts  Gross Amounts   Net Amount 
      Recognized 

      Presented 

Offset 

Assets: 
Commodity swaps: 

Long-term portion of derivative assets, related party 

  $ 

 3,270   $ 

 —   $ 

 3,270 

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   $ 

 —   $ 

 164 

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

 42  
 39  
 245   $ 

 —  
 —  
 —   $ 

 42 
 39 
 245 

  $ 

Derivatives and embedded derivatives as of December 31, 2020 consisted of the following (in thousands): 

  Gross Amounts  Gross Amounts   Net Amount 
      Recognized 

      Presented 

Offset 

Assets: 
Commodity swaps: 

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

Fueling agreements: 

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

Total derivative assets 

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

  $ 

 1,591   $ 
 4,057  

 —   $ 
 —  

 1,591 
 4,057 

 249  
 542  
 6,439   $ 

 —  
 —  
 —   $ 

 249 
 542 
 6,439 

 283  
 273  
 556   $ 

 —  
 —  
 —   $ 

 283 
 273 
 556 

  $ 

  $ 

  $ 

As of December 31, 2019 and 2020, the Company had a total volume on open commodity swap contracts of 21.9 

million and 16.9 million diesel gallons, respectively, at a weighted-average price per gallon of approximately $3.18. 

The following table reflects the weighted-average price of open commodity swap contracts as of December 31, 2019 

and 2020, by year with associated volumes: 

Year 
2020 
2021 
2022 
2023 
2024 

December 31, 2019 

December 31, 2020 

Volumes 
     (Diesel Gallons)     

  Weighted-Average Price per 
Diesel Gallon 

Volumes 
     (Diesel Gallons)    

  Weighted-Average Price per 
Diesel Gallon 

 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   

 —   $ 
 5,000,000   $ 
 5,000,000   $ 
 5,000,000   $ 
 1,875,000   $ 

 — 
 3.18 
 3.18 
 3.18 
 3.18 

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CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

Note 8 —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, 
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 7).  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, 2019 and 2020: 

Significant Unobservable Inputs 

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

December 31, 2019 

December 31, 2020 

     Weighted Average       Input Range 

     Weighted Average 

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

1.81 
0.91 
1.78 

  $1.47 - $1.54   $ 
  $0.81 - $1.58   $ 
  $1.66 - $2.58   $ 

1.50 
0.99 
2.01 

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 and 2020: 

December 31, 2019 

December 31, 2020 

Significant Unobservable Inputs 

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

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

     Weighted Average       Input Range 

     Weighted Average 

1.81 
0.91 
1.78 

  $1.47 - $1.54   $ 
  $0.81 - $1.58   $ 
  $1.66 - $2.58   $ 

1.50 
0.99 
2.01 

79 

 
 
 
 
 
 
 
 
 
CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

The Company’s liability-classified warrants (or "derivative warrants"), which were all issued by NG Advantage, are 
classified within Level 3 because the Company used the Black-Scholes option pricing model to estimate the fair value 
based on inputs that are not observable in any market. The warrants expired, unexercised, on July 2, 2020. 

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

2019 or 2020. 

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, 2019 and 2020 (in thousands): 

      December 31, 2019 

      Level 1 

      Level 2 

      Level 3 

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) 

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

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

Embedded derivatives (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 

      December 31, 2020 

      Level 1 

      Level 2 

      Level 3 

  $ 

 28,998   $ 
 530  
 5,648  
 791  

 —   $  28,998   $ 
 —  
 —  
 —  

 530  
 —  
 —  

 — 
 — 
 5,648 
 791 

  $ 

 556   $ 

 —   $ 

 —   $ 

 556 

(1) 

Included in “Short-term investments” in the accompanying consolidated balance sheets. See Note 6 for more information. 

(2) 

Included  in  “Derivative  liabilities,  related  party”  and  “Long-term  portion  of  derivative  assets,  related  party”  as  of  December  31,  2019,  and 
“Derivative  assets,  related  party”  and  “Long-term  portion  of  derivative  assets,  related  party”  as  of  December  31,  2020,  in  the  accompanying 
consolidated balance sheets. See Note 7 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 7 for more information. 

(4) 

Included in “Accrued liabilities” in the accompanying consolidated balance sheet as of December 31, 2019. The warrants expired on July 2, 2020. 

80 

 
    
      
      
      
  
    
      
      
      
  
 
  
  
  
 
  
  
  
 
  
  
  
  
 
 
  
  
  
 
 
 
 
 
 
  
   
  
   
  
   
  
 
 
 
 
 
 
 
 
 
 
 
 
  
                           
    
      
      
  
    
      
      
      
  
 
 
 
 
 
 
  
  
  
  
 
 
 
 
 
 
  
 
  
 
  
 
  
 
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, 2018 
Settlements, net 
Total gain (loss) 
Balance as of December 31, 2019 

Balance as of December 31, 2019 
Settlements, net 
Total gain (loss) 
Balance as of December 31, 2020 

Change in unrealized gain (loss) for the year ended 
December 31, 2019 included in earnings 
Change in unrealized gain (loss) for the year ended 
December 31, 2020 included in earnings 

Other Financial Assets and Liabilities 

Assets: 

  Embedded 

Assets: 
Commodity 

  Liabilities: 
  Commodity 

  Liabilities:   
  Embedded    Liabilities: 
     Swap Contracts     Derivatives    Swap Contracts    Derivatives      Warrants 
 —   $   (1,079)
  $ 
 — 
 —  
 1,039 
 (81) 
 (40)
 (81)  $ 

 10,332   $ 
 667  
 (7,729) 
 3,270   $ 

 —  $ 
 — 
 723 
 723  $ 

 — 
 — 
 (164)
 (164)

  $ 

 $ 

 $ 

  $ 

  $ 

 3,270   $ 
 (1,652) 
 4,030  
 5,648   $ 

 723  $ 
 — 
 68 

 791  $ 

 (164)
 56 
 108 
 — 

 $ 

 $ 

 (81)  $ 
 —  
 (475) 
 (556)  $ 

 (40)
 — 
 40 
 — 

  $ 

 (7,062)  $ 

 723  $ 

 (164)

 $ 

 (81)  $ 

 1,039 

  $ 

 2,378   $ 

 68  $ 

 164 

 $ 

 (475)  $ 

 40 

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, 2019 and 2020. 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 12  for  more  information  about  the 
Company’s debt instruments. 

Note 9 —Other Receivables 

Other receivables as of December 31, 2019 and 2020 consisted of the following (in thousands): 

Loans to customers to finance vehicle purchases 
Accrued customer billings 
Fuel tax credits 
Other 

Total other receivables 

  $ 

  $ 

2019 

2020 

 653   $ 

 6,124  
 69,585  
 8,536  
 84,898   $ 

 394 
 6,335 
 10,556 
 6,370 
 23,655 

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CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

Note 10 —Land, Property and Equipment 

Land, property and equipment, net as of December 31, 2019 and 2020 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 

2019 

 3,476   $ 
 94,633  
 324,431  
 79,477  
 101,655  
 75,232  
 678,904  
 (354,992) 
 323,912   $ 

2020 

 3,476 
 94,633 
 344,839 
 79,860 
 89,276 
 73,272 
 685,356 
 (394,445)
 290,911 

  $ 

  $ 

Included in "Land, property and equipment, net" are capitalized software costs of $30.4 million and $32.3 million as 
of December 31, 2019 and 2020, respectively. Accumulated amortization of the capitalized software costs is $26.3 million 
and $28.8 million as of December 31, 2019 and 2020, respectively. 

The Company recorded amortization expense related to the capitalized software costs of $3.7 million, $3.9 million 

and $2.5 million during the years ended December 31, 2018, 2019 and 2020, respectively. 

As of December 31, 2019 and 2020, $3.0 million and $1.7 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 11 —Accrued Liabilities 

Accrued liabilities as of December 31, 2019 and 2020 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 
Embedded derivatives 
Other (2) 

Total accrued liabilities 

(1) 

Includes the amount of RINs, LCFS Credits and the amount of AFTC payable to third parties. 

(2)  No individual item in “Other” exceeds 5% of total current liabilities. 

  $ 

2019 
 27,839   $ 

 2,276  
 220  
 11,383  
 3,732  
 9,105  
 42  
 13,100  
 67,697   $ 

  $ 

2020 
 18,175 
 4,282 
 512 
 9,897 
 3,094 
 7,646 
 283 
 8,748 
 52,637 

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CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

Note 12 —Debt 

Debt obligations as of December 31, 2019 and 2020 consisted of the following (in thousands): 

December 31, 2019 

7.5% Notes 
NG Advantage debt 
SG Facility 
Other debt 

Total debt 

Less amounts due within one year 
Total long-term debt 

bp Loan 
NG Advantage debt 
SG Facility 
Other debt 
Total debt 

Less amounts due within one year 

Total long-term debt 

Principal Balance   

Financing Costs 

      Unamortized Debt       Balance, Net of 
Financing Costs 
 49,983 
 33,706 
 4,400 
 796 
 88,885 
 (56,013)
 32,872 

 17   $ 
 192  
 — 
 — 
 209  
 (84) 
 125   $ 

 50,000    $ 
 33,898   
 4,400  
 796   
 89,094   
 (56,097)   
 32,997   $ 

Principal Balance   

December 31, 2020 

Financing Costs 

      Unamortized Debt       Balance, Net of 
Financing Costs 
 50,000 
 29,418 
 5,100 
 1,162 
 85,680 
 (3,592)
 82,088 

 —   $ 
 117  
 —  
 —  
 117  
 (39) 
 78   $ 

 50,000    $ 
 29,535   
 5,100  
 1,162   
 85,797   
 (3,631)  
 82,166   $ 

  $ 

  $ 

  $ 

  $ 

The following is a summary of the aggregate maturities of debt obligations for each of the annual periods subsequent 

to December 31, 2020 (in thousands): 

bp Loan 
NG Advantage debt 
SG Facility 
Other Debt 
Total 

7.5% Notes 

2022 
 —   $  50,000   $ 

      2023 

      2024 

      2025 

     Thereafter   

Total 

      2021 
  $ 
    3,270  
 —  
 361  

 —   $ 

 —   $  50,000 
   29,535 
 5,100 
 1,162 
  $  3,631   $  53,803   $  9,238   $  9,423   $  1,397   $   8,305   $  85,797 

    3,425  
 —  
 378  

    8,305  
 —  
 —  

    4,162  
   5,100  
 161  

    1,397  
 —  
 —  

    8,976  
 —  
 262  

 —   $ 

 —   $ 

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 bore interest at the rate of 7.5% per annum 
and were 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 
had 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  could  force  conversion  of  each  7.5%  Note  into  shares  of  its  common  stock  if  such  shares  traded  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 7.5% Notes included customary events of default which, if any of them occurred, would permit or require the 

principal of, and accrued interest on, the 7.5% Notes to become, or to be declared, due and payable.  

83 

 
 
 
 
 
 
 
 
 
 
 
 
 
      
 
 
 
 
 
  
 
  
 
 
 
 
 
  
 
  
 
  
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
      
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

Prior  to  January 1, 2018,  (i)  the  Company purchased $25.0 million of  the  7.5% Notes from  Mr.  Pickens,  (ii) Mr. 
Pickens transferred the remaining balance of his 7.5% Notes to third parties, and (iii) GEIH transferred $16.8 million in 
principal amount of its 7.5% Notes to third parties. 

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 were due June 14, 2020. In 
May 2020, the Company repaid the remaining $50.0 million of 7.5% Notes and related accrued and unpaid interest thereon. 
No events of default under the 7.5% Notes had occurred as of the date such 7.5% Notes were paid in full. 

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 
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, 2020, the Company had $5.1 
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 13). Under the CSA, THUSA agreed to enter into a 
guaranty agreement (“Guaranty”) pursuant to which it has guaranteed the Company’s obligation to repay 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 

84 

CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

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 
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  were  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.  In  December  2020,  the  outstanding  principal  balance  plus  accrued  and 
unpaid interest were paid off in conjunction with the Berkshire ALA described below. 

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 

85 

CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

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. 

On  December  10,  2020,  NG  Advantage  entered  an  Amended  and  Restated  Loan  and  Security  Agreement  with 
Berkshire Bank (“Berkshire ALA”) to substitute and replace the two existing loans with Berkshire Bank dated May 12, 
2016 and January 24, 2017 (collectively, the “Original Debt”). The Berkshire ALA provides NGA a 5-year term loan of 
$14.5 million with principal and interest due monthly beginning February 1, 2021 at an annual interest rate of 5% maturing 
on January 1, 2026. NG Advantage used the funds provided by the Berkshire ALA to repay in full the outstanding principal 
balance  plus  accrued  and  unpaid  interest  of  the  Original  Debt,  and  to  repay  the  outstanding  balances  of  certain  other 
financing obligations to unrelated lenders, Nations and Liberty. The Berkshire ALA also provides NG Advantage a $1.0 
million revolving line of credit. NG Advantage has pledged as collateral certain assets and equipment including trailers 
under the Berkshire ALA, and the Company has provided a limited guaranty of up to $7.0 million classified in “Long-
term  portion  of  restricted  cash”  on  the  accompanying  consolidated  balance  sheet.  As  a  result  of  the  Berkshire  ALA 
transaction, during the year ended December 31, 2020, the Company recognized a $1.2 million loss on extinguishment of 
debt which is included in “Interest expense” in the accompanying statements of operations.  

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%. 

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 

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CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

annual rate of 9.18%. In December 2020, NG Advantage paid $2.5 million to settle the outstanding liability of $2.2 million 
in conjunction with the Berkshire ALA described above. Upon such payment, the Nations MLA was cancelled in full. 

In  October  2019,  NG  Advantage  entered  into  a  sale-leaseback  arrangement  through  a  Master  Equipment  Lease 
Agreement (the “Liberty MLA”) with Liberty Commercial Finance LLC (“Liberty”). Pursuant to the Liberty MLA, NG 
Advantage 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 was held as a security deposit. In December 2020, 
NG Advantage paid $6.7 million to settle the outstanding liability of $6.0 million in conjunction with the Berkshire ALA 
described above. Upon such payment, the Liberty MLA was cancelled in full. 

bp Loan 

On December 18, 2020, the Company entered a Memorandum of Understanding (“MOU”) with bp Products North 
America Inc, a subsidiary of BP p.l.c. (“bp”). Pursuant to the MOU the Company and bp intend to create a joint venture 
to develop, own, and operate RNG production facilities at dairies. Contemporaneous with the execution of the MOU, the 
Company and bp executed a loan agreement whereby bp advanced $50.0 million (“bp Loan”) to fund capital costs and 
expenses  incurred prior  to  formation  of  the  joint  venture.  The  Company  expects  that all  unpaid principal  and accrued 
interest outstanding under the bp Loan will be contributed to the joint venture, provided that if the joint venture is not 
formed by April 30, 2022, the Company is obligated to repay the outstanding principal and accrued interest within five 
days of April 30, 2022. The bp Loan bears interest at the rate per annum equal to LIBOR plus 4.33%. 

Other Debt 

The Company has other debt due at various dates through 2024 bearing interest at rates up to 4.75% with a weighted-

average interest rate of 4.78% and 4.38% as of December 31, 2019 and 2020, respectively. 

Note 13 —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, 2020, 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, 2018, 2019 or 2020. 

Voting Rights 

Each holder of common stock has the right to one vote per share owned on matters presented for stockholder action. 

Total Private Placement 

On  May 9,  2018,  the  Company  entered  into  a  stock  purchase  agreement  (the “Purchase  Agreement”)  with  Total 
Marketing  Services,  S.E.  (“TMS”),  a  wholly  owned  subsidiary  of  Total  S.E.  (“Total”).  Pursuant  to  the  Purchase 
Agreement, the Company agreed to sell and issue, and TMS 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 

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CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

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 TMS closed the Total Private Placement, in which: (1) the Company issued to 
TMS  all  of  the  50,856,296  shares  of  its  common  stock  issuable  under  the  Purchase  Agreement,  resulting  in  Total 
beneficially  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, 2020, 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  held  outstanding  warrants,  which  expired  unexercised  in  July  2020,  to 
purchase equity interests in NG Advantage. The warrants were accounted for as liability classified warrants. The fair value 
was $0.0 million as of December 31, 2019, and the gain (loss) from the change in fair value was $(0.5) million, $1.0 
million  and  $0.0  million  for  the years  ended  December  31,  2018,  2019  and  2020,  respectively,  (see  Note 8  for  more 
information). 

Share Repurchase Program 

On March 12, 2020, the Company’s Board of Directors approved a share repurchase program of up to $30.0 million 
(exclusive  of  fees  and  commissions)  of  the  Company’s  outstanding  common  stock  (the  “Repurchase  Program”).  The 
Repurchase  Program  does  not  have  an  expiration  date,  and  it  may  be  suspended  or  discontinued  at  any  time.  As  of 
December  31,  2020,  the  Company  had  utilized  $14.5  million  under  the  Repurchase  Program  to  repurchase  7,744,386 
shares of its common stock for a total cost of $14.6 million. The Repurchase Program does not obligate the Company to 
acquire any specific number of shares. Repurchases under the Repurchase Program may be effected from time to time 
through  open  market  purchases,  privately  negotiated  transactions,  structured  or  derivative  transactions,  including 
accelerated share repurchase transactions, or other methods of acquiring shares, in each case subject to market conditions, 
applicable securities laws and other relevant factors. Repurchases may also be made under Rule 10b5-1 plans. 

88 

CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

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 2018, 2019, and 2020 

  $ 

Year Ended December 31,  
2019 
 3,880    $ 

2018 
 5,307    $ 

2020 
 2,957 

Equity Incentive Plans 

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.  

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 2006 Plan are not available for future 
grant under the 2016 Plan. If any outstanding award under the 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.  

In May 2020, the Company adopted its Amended and Restated 2016 Performance Incentive Plan (“Amended 2016 
Plan”), which increased the aggregate number of shares of the Company’s common stock to be delivered pursuant to all 
awards granted under the 2016 Performance Incentive Plan by an additional 17,500,000 shares, and became effective on 
May 15, 2020, the date of approval of the Amended 2016 Plan by the Company’s stockholders.  As of December 31, 2020, 
the Company had 19,132,051 shares available for future grant under the Amended 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. 

The following table summarizes the Company’s stock option activity for the year ended December 31, 2020: 

  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, 2019 

Granted 
Exercised 
Forfeited or expired 

Options outstanding as of December 31, 2020 
Options exercisable as of December 31, 2020 
Options vested and expected to vest as of December 31, 2020 

 9,121,665   $ 
 1,192,288  
 (647,363) 
    (1,523,759) 

 8,142,831   $ 
 6,029,564   $ 
 8,142,831   $ 

 6.32   
 2.56   
 2.39   
 10.02   
 5.38   
 6.51   
 5.38   

 5.74   $ 
 4.83   $ 
 5.74   $ 

 31,362 
 19,348 
 31,362 

89 

 
 
 
 
 
 
 
 
 
 
 
 
 
     
     
     
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     
     
  
      
  
  
  
      
  
  
  
      
  
  
      
  
  
  
  
 
CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

As of December 31, 2020, there was $1.6 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 
1.36 years. The total fair value of shares vested during the year ended December 31, 2020 was $2.2 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 

   70.2% to 74.6%  
   2.70% to 2.71%  

2018 
0.0% 

6.0 

Year Ended December 31,  
2019 
0.0% 
57.3% to 61.5%  
2.11% to 2.53%  
6.0 

2020 
0.0% 
65.8% to 83.9% 
0.37% to 1.21% 
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 value per share of stock options granted during the years ended December 31, 
2018, 2019 and 2020, were $0.88, $1.28 and $1.54, respectively. The aggregate intrinsic value of options exercised during 
the years ended December 31, 2018, 2019 and 2020 were $0.0 million, $0.1 million and $1.8 million, respectively. The 
Company recorded $2.0 million, $2.2 million and $1.7 million of stock option expense during the years ended December 
31, 2018, 2019 and 2020, 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. 

The following table summarizes the Company’s Service-Based RSU activity for the year ended December 31, 2020: 

RSU outstanding and unvested as of December 31, 2019 

Granted 
Vested 
Forfeited or expired 

RSU outstanding and unvested as of December 31, 2020 

Number of 
Shares 
 1,231,805   
 554,192   
 (756,031) 
 (51,250) 
 978,716   

$ 

$ 

Weighted 
Average 
Fair Value at 
Grant Date 

 1.71 
 2.56 
 1.92 
 1.95 
 1.71 

The weighted average grant-date fair value of RSUs granted during the years ended December 31, 2018 and 2020 was 

$1.36 and $2.56, respectively. There were no RSUs granted during the year ended December 31, 2019. 

As of December 31, 2020, there was $1.1 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 1.24 years. 

90 

 
 
 
 
 
 
 
 
 
 
     
     
     
  
 
 
  
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     
     
  
  
  
  
  
  
  
  
 
CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

The Company recorded $3.0 million, $1.5 million and $1.0 million of expense during the years ended December 31, 
2018, 2019 and 2020, 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, 
2018, 2019 and 2020. The Company has not recorded any tax benefit related to its ESPP expense. As of December 31, 
2020, the Company had issued an aggregate of 635,448 shares pursuant to the ESPP. 

Note 14 —Income Taxes 

The components of income (loss) before income taxes for the years ended December 31, 2018, 2019 and 2020 are as 

follows (in thousands): 

U.S. 
Foreign 

Total income (loss) before income taxes 

2018 

2019 

2020 

  $   (9,153)   $   14,981   $  (11,216)
 (4)
  $   (8,842)   $   14,117   $  (11,220)

 (864) 

 311  

The provision for income taxes for the years ended December 31, 2018, 2019 and 2020 consists of the following (in 

thousands): 

Current: 
State 
Foreign 

Total current 

Deferred: 
Federal 
State 

Total deferred 
Total expense 

2018 

2019 

2020 

  $ 

 341   $ 

 —  
 341  

 —  
 —  
 —  

  $ 

 341   $ 

 116   $ 
 4  
 120  

 293  
 445  
 738  
 858   $ 

 80 
 109 
 189 

 48 
 72 
 120 
 309 

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CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

Income tax expense (benefit) for the years ended December 31, 2018, 2019 and 2020 computed using the federal 

income tax rate of 21% as of December 31, 2018, 2019 and 2020 as a result of the following (in thousands): 

Computed expected tax (benefit) 
Nondeductible expenses 
Tax rate differential on foreign earnings 
Joint ventures 
Tax credits 
Other 
Change in valuation allowance 

Total tax expense 

2018 
  $   (1,857)   $ 

2020 

2019 
 2,964   $   (2,356)
 2,775 
 3,087  
 (144)
 245  
 (5,059)
 3,745  
 (4,037)
    (10,314) 
 1,559 
 665  
 7,571 
 466  
 309 
 858   $ 

 5,674  
 (56)  
 2,080  
 (6,603)  
 985  
 118  
 341   $ 

  $ 

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. AFTC revenue for vehicle fuel the Company sold in the 2020 calendar year was recognized 
during the year ended December 31, 2020. 

The Company recorded a federal tax benefit of $6.1 million, $10.5 million and $4.2 million related to the exclusion 
of AFTC associated with 2018, 2019 and 2020 fuel sales in excess of its fuel tax obligation, respectively. These amounts 
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, 2019 and 2020 are as follows (in thousands): 

2019 

2020 

Deferred tax assets: 
Accrued expenses 
Lease obligations 
Alternative minimum tax and general business credits 
Stock option expense 
Other 
Depreciation and amortization 
Loss carryforwards 

Total deferred tax assets 
Less valuation allowance 
Net deferred tax assets 

Deferred tax liabilities: 
Right-of-use assets 
Commodity swap contracts 
Depreciation and amortization 
Goodwill 
Investments in joint ventures and partnerships 

Total deferred tax liabilities 
Net deferred tax liabilities 

92 

  $ 

 4,899   $ 
 7,338  
 6,651  
 9,254  
 1,456  
 —  
 107,722  
 137,320  
    (122,147) 
 15,173  

 4,940 
 6,938 
 6,233 
 6,648 
 1,545 
 1,635 
 119,708 
 147,647 
    (134,974)
 12,673 

 (7,338) 
 (998) 
 (911) 
 (1,910) 
 (4,754) 
 (15,911) 

  $ 

 (738)  $ 

 (6,788)
 (1,596)
 — 
 (2,221)
 (2,926)
 (13,531)
 (858)

 
 
 
 
 
 
 
 
 
 
 
     
     
     
 
  
  
  
 
  
  
  
 
  
  
  
 
  
  
 
  
  
  
 
  
  
  
 
 
 
 
 
 
 
 
 
     
     
  
 
    
 
  
 
 
 
 
  
  
 
  
  
 
  
  
 
 
 
 
  
  
 
  
  
 
 
  
  
 
  
   
  
  
 
 
 
 
  
  
 
  
  
 
  
  
 
  
  
 
  
  
 
CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

As  of  December  31,  2020,  the  Company  had  federal,  state  and  foreign  net  operating  loss  carryforwards  of 
approximately $468.4 million, $338.7 million and $2.2 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 $6.2 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,  2019  and  2020,  the  Company  provided  a  valuation  allowance  of  $122.1  million  and  $135.0  million, 
respectively,  to  reduce  the  net  deferred  tax  assets  due  to  uncertainty  surrounding  the  realizability  of  these  assets.  The 
increase in the valuation allowance for the year ended December 31, 2020 of $12.8 million was primarily attributable to 
an increase in losses without benefit. 

For  the year  ended  December  31,  2020,  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 $45.3 million as of December 31, 2020 that, if recognized, would not result in a tax benefit since it would be fully offset 
with a valuation allowance. 

The  following  is  a  tabular  reconciliation  of  the  total  amounts  of  unrecognized  tax  benefits  for  the years  ended 

December 31, 2018, 2019 and 2020 (in thousands): 

Unrecognized tax benefit—December 31, 2018 
Gross increases—tax positions in current year 
Unrecognized tax benefit—December 31, 2019 
Gross increases—tax positions in current year 
Gross increases—tax positions in prior year 
Unrecognized tax benefit—December 31, 2020 

     $ 

$ 

 36,243 
 5,232 
 41,475 
 2,954 
 870 
 45,299 

The increase in the Company’s unrecognized tax benefits in the years ended December 31, 2019 and 2020 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, 2019 and 2020. The 
Company  recognized  interest  expense  related  to  uncertain  tax  positions  of  $0.0  million  for  each  of  the years  ended 
December 31, 2018, 2019 and 2020. 

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 2017 through 2020 are subject to examination by various tax authorities. While the Company is no longer 
subject to U.S. examination for years before 2017, and for state tax examinations for years before 2016, taxing authorities 

93 

 
 
 
 
  
 
  
 
  
 
 
 
 
 
CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

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 15 —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. 

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 one long-term CNG supply contract to purchase CNG, on a take-or-pay basis, that 
expires in June 2022. As of December 31, 2020, the fixed commitments under this contract totaled approximately $0.2 
million and $0.1 million for the years ending December 31, 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,  2020,  the  fixed  commitments  under  these  contracts  totaled 
approximately $1.2 million for each of the years ending December 31, 2021, 2022 and 2023. 

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  (see  Note  4).  The 
arrangement is customary and ordinary course. As of December 31, 2020, the commitments for the specified volume under 
this  contract  were  estimated  to  be  approximately  $1.2  million  for  the year  ending  December 31,  2022.  There  is  no 
commitment for the year ending December 31, 2021. 

94 

CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

Note 16 —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. 

NG Advantage has provided residual value guarantees on leases of certain vehicles aggregating $1.0 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 and 2020, 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 

2019 

2020 

  $ 

  $ 

  $ 

  $ 

 5,177    $ 
 (2,134) 
 3,043    $ 

 615    $ 

 2,715   
 3,330    $ 

 4,915 
 (1,905)
 3,010 

 840 
 2,552 
 3,392 

  $ 

 28,627    $ 

 25,967 

  $ 

  $ 

 3,359    $ 
 26,206   
 29,565    $ 

 2,822 
 23,698 
 26,520 

95 

 
 
 
 
 
 
 
 
 
 
 
  
 
    
 
  
 
  
  
 
 
   
 
   
 
  
  
 
 
   
 
   
 
  
   
  
  
 
 
   
 
   
 
  
  
 
CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

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,  
2020 
2019 

  $ 

  $ 

  $ 

  $ 

 498   $ 
 189  
 687   $ 

 6,630   $ 
 1,950  
 2,755  
 (206) 
 11,129   $ 

 733 
 185 
 918 

 6,287 
 847 
 2,593 
 (736)
 8,991 

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,  
2020 
2019 

  $ 
  $ 
  $ 

  $ 
  $ 

 189   $ 
 5,350   $ 
 1,667   $ 

 519   $ 
 31,861   $ 

 185 
 5,503 
 1,242 

 1,337 
 96 

      December 31,         December 31,  

2019 

4.49 years   
11.10 years   

2020 
3.59 years 
10.81 years 

5.09%   
8.29%   

5.27% 
8.40% 

(1)  These amounts are excluded from the accompanying consolidated statements of cash flows as they are non-cash investing and financing activities. 

The following schedule represents the Company’s maturities of finance and operating lease liabilities as of December 

31, 2020 (in thousands): 

Fiscal year: 
2021 
2022 
2023 
2024 
2025 
Thereafter 

Total minimum lease payments 
Less amount representing interest 
Present value of lease liabilities 

      Finance Leases       Operating Leases

  $ 

  $ 

 990   $ 
 756  
 658  
 1,062  
 314  
 —  
 3,780  
 (388) 
 3,392   $ 

 4,707 
 3,788 
 3,713 
 3,704 
 3,560 
 21,588 
 41,060 
 (14,540)
 26,520 

96 

 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
    
 
  
 
  
  
 
 
   
 
   
 
  
   
  
  
 
  
  
 
  
  
 
  
  
 
 
 
 
 
 
 
 
 
 
 
     
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
 
 
 
  
  
 
 
 
 
 
 
 
 
 
  
 
  
 
 
  
  
 
  
  
 
  
  
 
  
  
 
  
  
 
  
  
 
  
  
 
CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

Lessor Accounting 

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  years  ended  December  31,  2019  and  2020,  the  Company  recognized  $0.1  million  and  $0.5  million, 

respectively, in “Interest income” on its lease receivables. 

The  following  schedule  represents  the  Company’s  maturities  of  lease  receivables  as  of  December  31,  2020  (in 

thousands): 

Fiscal year: 
2021 
2022 
2023 
2024 
2025 
Thereafter 

Total minimum lease payments 
Less amount representing interest 

Present value of lease receivables 

Note 17 —401(k) Plan 

$ 

$ 

 1,402 
 1,182 
 962 
 962 
 962 
 3,358 
 8,828 
 (2,349)
 6,479 

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, 2018, 2019 and 2020 
the  Company  contributed  approximately  $1.3  million,  $1.3  million  and  $1.5  million,  respectively,  of  matching 
contributions to the Savings Plan. 

Note 18 – 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, 2018, 2019 and 2020 (in thousands, except share and per share amounts): 

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

   $

 (3,790)   $

 20,421    $ 

 (9,864)

2018 

2019 

2020 

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 

  $
  $

   180,655,435  

   204,573,287  

   200,657,912 

 —  
   180,655,435  

 1,414,222  
   205,987,509  

 — 
   200,657,912 
 (0.05)
 (0.05)

 0.10   $ 
 0.10   $ 

 (0.02)  $
 (0.02)  $

97 

 
 
 
 
 
      
  
 
 
  
 
  
 
  
 
  
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
     
    
 
 
   
 
   
 
   
 
 
 
 
 
 
 
CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

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. 

(in shares) 
Stock options 
Convertibles notes 
Restricted stock units 

Note 19 —Related Party Transactions 

Total S.E. 

2018 

2019 

2020 

    8,699,677      7,652,463      8,142,831 
    3,164,557      3,164,557      1,112,783 
 978,716 
    2,279,601    

 —    

During the years ended December 31, 2019 and 2020, the Company recognized revenue of $1.7 million and $7.8 
million, respectively, related to RINs sold to Total in the ordinary course of business and settlements on commodity swap 
contracts (Note 7). As of December 31, 2019 and 2020, the  Company had receivables from TOTAL of zero and $0.9 
million, respectively. 

During the years ended December 31, 2019 and 2020, the Company paid TOTAL $1.3 million and $0.7 million for 
expenses incurred in the ordinary course of business, settlements on commodity swap contracts (Note 7), and the guaranty 
fee under the CSA (Note 12). As of December 31, 2019 and 2020, the amount due to TOTAL was immaterial. 

SAFE&CEC S.r.l 

During  the  years  ended  December  31,  2019  and  2020,  the  Company  received  $0.2  million  and  $1.2  million, 
respectively, from SAFE&CEC S.r.l. in the ordinary course of business. As of December 31, 2019 and 2020, the Company 
had receivables from SAFE&CEC S.r.l. of $0.9 million and $0.2 million, respectively. 

During the years ended December 31, 2019 and 2020, the Company paid SAFE&CEC S.r.l. $3.3 million and $4.8 
million, respectively, for parts and equipment in the ordinary course of business. As of December 31, 2019 and 2020, the 
Company had payables to SAFE&CEC S.r.l. of $0.8 million and $0.9 million, respectively. 

Note 20 —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 

98 

 
 
 
 
 
 
 
  
  
  
 
 
CLEAN ENERGY FUELS CORP. AND SUBSIDIARIES 

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) 

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. 

2018 

2019 

2020 

Revenue: 

United States 
Canada 

Total revenue 

Operating income (loss): 

United States 
Canada 

Total operating income (loss) 

Long-lived assets: 
United States 
Canada 

Total long-lived assets 

  $   337,531   $   338,549   $   281,546 
 10,178 
  $   346,419   $   344,065   $   291,724 

 5,516  

 8,888  

  $ 

  $ 

 3,548   $ 
 347  
 3,895   $ 

 10,805   $ 
 (877) 
 9,928   $ 

 (9,853)
 9 
 (9,844)

  $   442,897   $   415,548   $   383,463 
 202 
  $   443,182   $   415,774   $   383,665 

 226  

 285  

The Company’s goodwill and intangible assets as of December 31, 2018, 2019 and 2020 relate to its United States 

operations, and its subsidiaries, Clean Energy Cryogenics and NG Advantage (see Note 4). 

Note 21 —Concentrations 

During  the years  ended  December  31,  2018,  2019  and  2020,  one,  one,  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, 2018, 2019 and 2020, no single customer accounted for 10% or more of the 

Company’s total revenue. 

Note 22 —Subsequent Events 

Total Joint Venture 

On March 3, 2021, the Company entered an agreement (“Total JV Agreement”) with Total that created a 50/50 joint 
venture (“Total JV”) to develop ADG RNG production facilities in the U.S. The Total JV Agreement contemplates that 
the Total JV will invest up to $400 million of equity in production projects, and Total and the Company each committed 
to initially provide $50 million for the Total JV. Pursuant to the Total JV Agreement, the Company and Total have given 
the Total JV a limited right of first opportunity to invest in ADG RNG projects they respectively originate. To fund the 
Company’s equity in the Total JV, the Company has the option to borrow $20 million from Société Générale pursuant to 
the term credit agreement described in Note 12. 

99 

 
 
 
 
 
 
 
 
 
 
 
     
     
     
    
      
      
  
 
  
  
  
 
  
   
  
   
  
  
 
  
  
  
 
  
   
  
   
  
  
 
  
  
  
 
 
 
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, 2020, 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, 2020. 

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, 2020 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, 2020. 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, 2020, 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. 

100 

Item 9B.   Other Information. 

None.  

101 

 
 
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 2021 annual meeting of stockholders to be 
filed with the SEC within 120 days after the end of our fiscal year ended December 31, 2020. 

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 2021 annual meeting of stockholders to be filed with the SEC within 120 days 
after the end of our fiscal year ended December 31, 2020. 

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 2021 annual meeting of stockholders 
to be filed with the SEC within 120 days after the end of our fiscal year ended December 31, 2020. 

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 2021 annual meeting of stockholders to be filed with the SEC within 
120 days after the end of our fiscal year ended December 31, 2020. 

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  2021  annual  meeting  of 
stockholders to be filed with the SEC within 120 days after the end of our fiscal year ended December 31, 2020. 

102 

 
 
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) 

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 
Charges (benefit) to operations 
Deductions 

Balance as of December 31, 2020 

(a)(3) Exhibits 

  $ 

Credit Losses  
on Accounts   
Receivables   

      Allowance for       Allowance for 
Credit Losses 
on Notes 
Receivables 
 4,544 
 — 
 (381)
 4,163 
 931 
 (1,763)
 3,331 
 1,250 
 (476)
 4,105 

 1,276    $ 
 1,169   
 (526) 
 1,919   
 908   
 (415) 
 2,412   
 796   
 (1,873) 
 1,335    $ 

  $ 

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. 

103 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
 
  
  
 
  
  
 
  
  
 
  
  
 
  
  
 
  
  
 
  
  
 
 
 
EXHIBIT INDEX 

Exhibit 
Number   

Description 

3.1 

  Restated Certificate of Incorporation, as 

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. 

Incorporated herein by reference to the following filings: 

  Form 
  Filed as Exhibit 3.1 to the Quarterly Report 
on Form 10-Q for the quarter ended June 
30, 2018. 

Filed on 

  August 7, 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 

4.2 

  Form of Replacement Note issued by the 

  Filed as Exhibit 4.9 to the Current Report 

  June 18, 2013 

Registrant. 

on Form 8-K. 

4.3 

  Description of Clean Energy Fuels Corp. 

Capital Stock. 

  Filed as Exhibit 4.11 to the Annual Filing 
on Form 10-K for the fiscal year ended 
2019. 

  March 10, 2020 

10.1+ 

  Form of Indemnification Agreement. 

  Filed as Exhibit 10.4 to the Registration 
Statement on Form S-1, as amended. 

  March 27, 2007 

10.2+ 

  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. 

10.3† 

  Ground Lease dated November 3, 2006 
among the Registrant, Clean Energy 
Construction and U.S. Borax, Inc. 

10.4+ 

  Amended and Restated 2006 Equity 

Incentive Plan. 

  Filed as Exhibit 10.25 to the Registration 
Statement on Form S-1, as amended. 

  May 24, 2007 

  Filed as Exhibit 10.63 to the Annual Filing 
on Form 10-K for the fiscal year ended 
2011. 

  March 12, 2012 

10.5 

  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. 

10.6 

  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. 

104 

      
     
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit 
Number   

Description 

  Form 

Filed on 

Incorporated herein by reference to the following filings: 

10.7+ 

  Clean Energy Fuels Corp. Employee Stock 

  Filed as Exhibit Annex A to Schedule 14A 

  March 28, 2013 

Purchase Plan. 

Definitive Proxy Statement. 

10.8+ 

  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. 

10.9+ 

  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 

10.10+ 

  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 

10.11+ 

  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 

10.12+ 

  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 

10.13+ 

  Clean Energy Fuels Corp. 2016 
Performance Incentive Plan. 

  Filed as Exhibit 10.114 to the Current 

  May 27, 2016 

Report on Form 8-K. 

10.14+ 

  Clean Energy Fuels Corp. 2016 

  Filed as Exhibit 10.117 to the Quarterly 

  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. 

10.15+ 

  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. 

10.16+ 

  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. 

10.17 

  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 

105 

      
     
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit 
Number   

Description 

10.18 

10.19 

  Stock Purchase Agreement dated May 9, 
2018, between the Registrant and Total 
Market Services, S.A. 

  Voting Agreement dated May 9, 2018, 
among the Registrant, Total Market 
Services, S.A., and the directors and 
officers of the Registrant signatory. 

Incorporated herein by reference to the following filings: 

  Form 
  Filed as Exhibit 10.125 to the Quarterly 

Filed on 

  May 10, 2018 

Report on Form 10-Q for the quarter ended 
March 31, 2018. 

  Filed as Exhibit 10.126 to the Quarterly 

  May 10, 2018 

Report on Form 10-Q for the quarter ended 
March 31, 2018. 

10.20 

  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. 

10.21 

  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. 

10.22 

  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. 

10.23 

  Amended and Restated 2016 Performance 

  Filed as Exhibit 10.1 to the Current Report 

  May 18, 2020 

Incentive Plan. 

on Form 8-K. 

10.24*††   Memorandum of Understanding, dated 

December 18, 2020, between Clean Energy 
and BP Products North America Inc. 

10.25*††   USD $50,000,000 Loan Agreement, dated 
December 18, 2020, between Clean Energy 
and BP Products North America Inc. 

10.26*††   Joint Venture Agreement, dated March 3, 
2021, between Clean Energy Renewable 
Fuels, LLC and Total Biogas Holdings 
USA, LLC. 

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. 

106 

      
     
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit 
Number   

Description 

  Form 

Filed on 

Incorporated herein by reference to the following filings: 

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 

  Hedge Policy dated May 29, 2008. 

  Filed as Exhibit 99.1 to the Current Report 

  June 20, 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, 2020, 
formatted in iXBRL (Inline eXtensible 
Business Reporting Language): 
(i) Consolidated Balance Sheets; 

(ii) Consolidated Statements of Operations;  

(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. 

104 

  Cover Page Interactive Data File 

(formatted as iXBRL and contained in 
Exhibit 101) 

§  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. 

††  Certain portions of this document that constitute confidential information have been redacted in accordance with Item 

601(b)(10) of Regulation S-K. 

*  Filed herewith. 

107 

      
     
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
**  Furnished herewith. 

+  Management contract or compensatory plan or arrangement. 

108 

 
 
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 9, 2021 

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. 

109 

 
 
 
 
 
 
 
 
 
 
 
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 9, 2021 

Chief Financial Officer (Principal Financial Officer 
and Principal Accounting Officer) 

March 9, 2021 

  Chairman of the Board and Director 

March 9, 2021 

/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/ THOMAS MAURISSE 
Thomas Maurisse 

  Director 

/s/ KENNETH M. SOCHA 
Kenneth M. Socha 

  Director 

/s/ VINCENT C. TAORMINA 
Vincent C. Taormina 

  Director 

/s/ PARKER WEIL 
Parker Weil 

  Director 

March 9, 2021 

March 9, 2021 

March 9, 2021 

March 9, 2021 

March 9, 2021 

March 9, 2021 

March 9, 2021 

March 9, 2021 

110