Clean Energy Signs LNG Fueling Contract
for City of Fresno Municipal Refuse Fleet

- Agreement Will Supply California's 6th Largest City's Operations -

SEAL BEACH, Calif. (May 06, 2008) - Clean Energy Fuels Corp. (Nasdaq:CLNE) has been awarded a contract to supply liquefied natural gas (LNG) for the City of Fresno, California municipal refuse fleet for up to five years, expanding a fueling relationship begun in 2004.

The Fresno municipal refuse fleet now comprises 80 natural gas trucks and the city has ordered 22 additional natural gas trucks, making it the largest municipal liquefied natural gas refuse fleet in California's Central valley and second largest in California. Fresno is the 6th largest city in California.

"The refuse industry throughout California has been an early adopter of advanced natural gas truck technology and fuel, providing cleaner, cheaper and quieter service," said Andrew J. Littlefair, Clean Energy President and Chief Executive Officer. "We are pleased to assist Fresno in expanding its operations and increasing its cost-savings and clean air contributions to the Fresno community."

About Clean Energy
Clean Energy, based in Seal Beach, Calif., is the leading provider of natural gas (CNG and LNG) for transportation in North America. It has a broad customer base in the refuse, transit, ports, shuttle, taxi, regional trucking, airport and municipal fleet markets, fueling more than 14,000 vehicles daily at strategic locations across the United States and Canada. Information at:
www.cleanenergyfuels.com.

Forward-Looking Statements
This news release from Clean Energy contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934 that involve risks, uncertainties and assumptions. Actual results and the timing of events could differ materially from those anticipated in these forward-looking statements including the number of additional natural gas trucks Fresno will add to its fleet, and the timing of any such additions. The forward-looking statements made herein speak only as of the date of this press release and the company undertakes no obligation to publicly update such forward-looking statements to reflect subsequent events or circumstances.

Contacts

News Media
Bruce Russell, 310-559-4955 x101
brussell@cleanenergyfuels.com

Investors
John Mills/Ina McGuinness, 310/954-1100