Clean Energy Fuels to Report First Quarter 2008 Financial Results on May 15.

- Conference Call to Follow at 1:30 p.m. Pacific -

SEAL BEACH, Calif. -- Clean Energy Fuels Corp. (Nasdaq:CLNE) announced today it will release first quarter ended March 31, 2008 financial results after market close on Thursday, May 15, 2008, followed by an investor conference call at 4:30 p.m. Eastern time (1:30 p.m. Pacific time). President and Chief Executive Officer of Clean Energy Andrew Littlefair and Chief Financial Officer Rick Wheeler will host the call.

Investors interested in participating in the live call can dial [phone] from the U.S. International callers can dial [phone]. A telephone replay will be available approximately two hours after the call concludes and will be available through Thursday, May 29, 2008 by dialing [phone] from the U.S., or [phone] from international locations, and entering confirmation code 3868622.

There also will be a simultaneous, live webcast available on the Investor Relations section of the Company's web site at www.cleanenergyfuels.com. The webcast will be archived for 30 days.

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, intrastate and interstate 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