Clean Energy Partners with Quarles Petroleum to Add Natural Gas Fueling Service at Quarles Fleet Fueling Stations in the Mid-Atlantic Region

SEAL BEACH, CA--November 11, 2011: Clean Energy Fuels Corp. has partnered with Quarles Petroleum, Inc., a major Mid-Atlantic fleet fuel station operator, to add natural gas fueling services at selected Quarles station locations.

“Many of our customers are interested in natural gas-powered vehicles for their fleets. In response, we have partnered with Clean Energy, the nation's leading supplier of natural gas fuel for transportation, to meet our customer needs for natural gas fuel.”

Quarles operates approximately 125 fueling stations that are available 24/7 to serve its commercial vehicle fleet customers in strategic urban areas of Virginia, Maryland, Delaware, Pennsylvania, West Virginia, and North Carolina. Quarles' customers have exclusive access to the stations by using company-issued charge cards for fuel purchases. Initially, Clean Energy expects to add natural gas fueling capability at several existing Quarles stations in the Richmond, Virginia and the Washington Dulles International Airport areas.

Ben Wafle, President, Quarles Petroleum, said, "Many of our customers are interested in natural gas-powered vehicles for their fleets. In response, we have partnered with Clean Energy, the nation's leading supplier of natural gas fuel for transportation, to meet our customer needs for natural gas fuel."

Greg Roche, Vice President, National Accounts & Infrastructure, Clean Energy, said, "We welcome the opportunity to partner with Quarles and congratulate it on the decision to provide this added service to customers. With the expanding availability of light, medium and heavy-duty natural gas vehicles, fleet operators across the nation are transitioning to natural gas power. Among their goals are reducing costs, adding fuel diversity to their fleets, curtailing harmful emissions, and helping reduce America's dependence on imported oil."

Currently priced up to $1.50 or more per gallon lower than diesel or gasoline (depending upon local markets), the use of natural gas fuel reduces costs significantly for vehicle and fleet owners, and reduces greenhouse gas emissions up to 30% in light-duty vehicles and 23% in medium to heavy-duty vehicles. Additionally, natural gas is a secure North American energy source with 98% of the natural gas consumed produced in the U.S. and Canada.

About Quarles Petroleum

What began as a one-truck, family oil business in 1940, is today a third-generation, family owned and operated corporation that employees 250 people across seven states. Quarles Petroleum Incorporated is made up of several business lines that serve commercial and residential customers, providing affordable products with extraordinary service.

Clean Energy is the largest provider of natural gas fuel for transportation in North America and a global leader in the expanding natural gas vehicle market. It has operations in CNG and LNG vehicle fueling, construction and operation of CNG and LNG fueling stations, biomethane production, vehicle conversion and compressor technology.

Clean Energy fuels over 25,200 vehicles at 257 strategic locations across the United States and Canada with a broad customer base in the refuse, transit, trucking, shuttle, taxi, airport and municipal fleet markets. We are building "America's Natural Gas Highway," a network comprised initially of more than 100 LNG truck fueling stations connecting major freight trucking corridors across the country. Clean Energy del Peru, a joint venture, fuels vehicles and provides CNG to commercial customers in Peru. We own (70%) and operate a landfill gas facility in Dallas, Texas, that produces renewable natural gas, or biomethane, for delivery in the nation's gas pipeline network, and we plan to build a second facility in Michigan. We own and operate LNG production plants in Willis, Texas and Boron, Calif. with combined capacity of 260,000 LNG gallons per day and that are designed to expand to 340,000 LNG gallons per day as demand increases. NorthStar, a wholly owned subsidiary, is the recognized leader in LNG/LCNG (liquefied to compressed natural gas) fueling system technologies and station construction and operations. BAF Technologies, Inc., a wholly owned subsidiary, is a leading provider of natural gas vehicle systems and conversions for taxis, vans, pick-up trucks and shuttle buses. IMW Industries, Ltd., a wholly owned subsidiary based in Canada, is a leading supplier of compressed natural gas equipment for vehicle fueling and industrial applications with more than 1,200 installations in 24 countries.