CLEAN ENERGY FUELS CORP. 2009 Summary Annual Report and Form 10-K Clean Energy is the leading provider of natural gas (CNG and LNG) for transportation in North America. We have a broad customer base serving over 390 fl eets in the refuse, transit, port, shuttle, taxi, trucking, airport and municipal fl eet markets, fueling more than 17,800 vehicles daily at over 200 strategic locations across the United States, Canada and Peru. Clean Energy owns and operates two LNG production plants: one in Willis, Texas and one in Boron, California, with combined capacity of 260,000 LNG gallons per day and the capability to expand to 340,000 LNG gallons per day as demand increases. We own and operate a landfi ll gas facility in Dallas, Texas that produces renewable biomethane gas for delivery to the nation’s gas pipeline network that can be used as a renewable fuel. Clean Energy also owns BAF Technologies, Inc. of Dallas, Texas, a leading provider of natural gas vehicle systems and conversions for taxis, limousines, vans, pick-up trucks and shuttle buses. Natural gas is cleaner, cheaper and an all-American resource, making it a compelling alternative to gasoline and diesel for transportation. Nasdaq: CLNE www.cleanenergyfuels.com Volume of gas delivered — Revenue ($millions) CNG & LNG (millions of gallons) $140 120 120 100 100 80 80 60 60 40 40 20 20 0 0 05 06 07 08 09 05 06 07 08 09 Please review the company’s Annual Report on Form 10-K fi led with the Securities and Exchange Commission for information on the Company’s 2009 results of operations and fi nancial position. On the cover: Clean Energy, in 2009, opened the world’s largest public LNG truck fueling station to serve the Ports of Los Angeles and Long Beach and to act as one of the hubs of the new Southwest LNG Trucking Corridor for regional trucking. Whileoil costs less than at its peak, over 60% is still imported, threatening our national energy security. Natural gas fuel is abundant and nearly all-American. Recent discoveries have expanded domestic natural gas supplies to last for an estimated 120 years. ••• Natural gas fuel is cleaner than diesel or gasoline, producing over 23% lower greenhouse gas emissions, and is cheaper than gasoline or diesel. ••• Increasingly, vehicle fleets across the country, including taxi, transit, refuse, goods movement and regional trucking fleets, are switching to natural gas fuel for transportation. Today, over 200 Clean Energy fueling stations operate in 20 states, including 23 airports, serving numerous fleets of all types and over 5,200 transit buses. ••• Natural gas is delivered across North America through pipelines that reach nearly every populated area. ••• We purchase natural gas and compress it at our stations to deliver CNG. We liquefy natural gas at our two production plants or purchase it from our suppliers to deliver as LNG. We also produce biomethane, a renewable gas, and deliver it to the pipeline. ••• We provide the connection for the use of natural gas fuel for transportation. ••• In 2010, through our subsidiary, BAF, a small-volume manufacturer acquired in late 2009, we also provide natural gas vehicles for light- and medium-duty fleet markets. ••• It’s clear in 2010 — natural gas fuel is here and Clean Energy is the leading provider nationwide. ••• TO OUR SHAREHOLDERS IN 2009, we surpassed the 100-million-gallon mark for the volume of CNG and LNG delivered. At year-end, we operated 196 CNG and LNG stations fueling more than 390 fl eet customers with approximately 17,800 vehicles, as well as numerous individual customers through public access at our stations. We completed 29 new stations or station upgrade projects during the year. The McCommas Landfill in Dallas, Revenue in 2009 totaled $131.5 million and at year-end Texas produces biomethane, a low-carbon total assets were $355.8 million, with $9.8 million in long-term renewable gas, for delivery into the pipe- debt. Our 2009 10-K in the following pages provides detailed line. Clean Energy is developing its landfi ll fi nancial information. biomethane business nationwide. 2009 saw steady growth at Clean Energy as well as in our industry. Traditional fl eet markets for natural gas vehicles, such as refuse, expanded nationwide, and new fl eet markets, such as heavy-duty trucking for goods movement, emerged with widening fl eet-owner acceptance. With lower gasoline and diesel prices at the beginning of 2009 not likely sustainable once world demand for petroleum recovers, fuel diversity becomes critical for these fl eets now. Clean Energy began fueling buses in KEY TRENDS IN 2009 focused on two major market 2009 for the Los Angeles County Metropoli- segments for Clean Energy: refuse and regional trucking. tan Transportation Authority, the largest natural gas fl eet in the country. Natural In refuse, or waste hauling, the conversion to natural gas gas buses comprise 32% of all transit buses fuel that started in Southern California with the aid of the in the United States. South Coast Air Quality Management District’s initiative to clean the air moved nationwide. Our station in Smithtown, New York commissioned in 2007 represented the fi rst municipal deployment of natural gas-fueled trucks outside California. In 2009, we served customers in 11 states as fl eet implementations ranged from Washington and Idaho in the West to Florida and New Jersey in the East. Refuse trucks are a prime example of the benefi ts of natural gas fuel. In cities and towns with natural gas refuse trucks, the air quality is improved due to lower emissions. Fuel savings as high as $12,000 per vehicle per year pay back the incremental cost of the trucks in short order and signifi cantly reduce waste hauling expenses for communities over the 10-year life of the trucks. There are about 180,000 refuse trucks operating in municipal and private fl eets in the United States. Clean Energy plans to In trucking, the arrival of robust, class-8 LNG-powered serve goods movement by region, trucks from several manufacturers made regional trucking and through corridors connecting regions fl eets a reality for shippers and fl eet owners. This was prompted Step 1: Serve local/regional trucking hubs. Step 2: Serve corridors that connect the hubs. largely by the effects of the Clean Air Action Plan and Clean Truck Program, adopted by the Ports of Los Angeles and Long Beach, mandating wholesale changeover of thousands of trucks serving the ports to cleaner vehicles, including LNG trucks, thus providing a real market for manufacturers. The ports also provided a test bed for fl eet owners and shippers to Vans, buses and trucks for AT&T and evaluate the effi ciency, performance and cost-effectiveness of other customers fi ll BAF’s headquarters new LNG trucks. In June 2009, we opened the world’s largest production facility in Dallas, Texas as they public LNG truck fueling station (pictured on the cover) to are upfi tted for natural gas fuel use. serve the new fl eets at the ports. Now we are in the process of developing the fueling infrastructure for the Southwest LNG Truck Fueling Corridor to serve the needs of goods movement shippers throughout the region. Currently, there are close to three million Class-8 trucks on the road across the country. TRANSIT FLEETS are long-term users of natural gas fuel, which still makes the most sense as an alternative to diesel. About 32% of the nation’s transit fl eets use natural gas fuel and we fuel over 5,200 buses daily. Last year, we added transit fueling contracts in Los Angeles, CA, Washington, DC and Boston, MA, among other cities. Converting waste hauling to natural gas fuel began wide implementation in OTHER KEY MARKET SEGMENTS for natural gas 2009 with municipal and private fl eets fuel grew as well. These include taxi and limousine fl eets in switching to gain the benefi ts of lower cities like San Francisco, CA and Las Vegas, NV, airport multi- emissions and costs. fl eet fueling stations in Oklahoma City, OK, Austin, TX and Ontario, CA, and airport-related parking shuttle fl eets at Dallas-Fort Worth, TX, Houston, TX and Las Vegas, NV. In Fall 2009, with demand growing for natural gas vehicles and American vehicle manufacturers not responding, we acquired BAF Technologies, Inc., the leading provider of natural gas vehicle systems and conversions in the United States. BAF provides natural gas vehicle conversions, alternative fuel systems, application engineering, service and warranty support and research and development for taxis, limousines, vans, pick- up trucks and shuttle buses. AT&T announced it would deploy approximately 8,000 Clean Energy plans to natural gas vehicles in the next fi ve years and awarded BAF serve goods movement by region, the initial 600 Ford E-Series converted CNG vans, which were and through corridors connecting regions completed in December 2009. Through March, 2010, AT&T has Step 1: Serve local/regional trucking hubs. awarded BAF an additional 1,389 CNG van conversions. Step 2: Serve corridors that connect the hubs. This new momentum in natural gas vehicle adoption is due, in part, to the continuing efforts by our co-founder and director, Boone Pickens and his Pickens Plan Campaign. The Pickens Plan was primarily responsible for the proposed NAT GAS Act now in Congress. If passed, the Act will provide a tremendous impetus to further development and deployment of natural gas vehicles in fl eets of all sizes across the country. Airport-related vehicle fleets such as taxis, shuttles, buses and airport service vehicles increasingly use natural gas fuel, GOVERNMENT SUPPORT during 2009 included the as at the Dallas-Ft.