Clean Energy to Build, Operate, Supply New Public Access CNG Fuel Station to Serve Oklahoma State University Campus Fleets

- OSU Ranks Natural Gas as Tops Among Alternative Fuel Choices; Will Transition
Much of Campus Bus and Daily Use Vehicle Fleets to Clean, Green CNG Power -

SEAL BEACH, Calif.--(Business Wire)--
Oklahoma State University (OSU) has awarded Clean Energy Fuels Corp. (Nasdaq:
CLNE) a new 15-year contract to construct, operate and supply a new compressed
natural gas (CNG) fueling station on the OSU campus at Stillwater, OK. The
facility will support the University`s accelerating program to replace most of
its diesel bus and gasoline-powered fleet vehicles with energy-efficient,
environmentally friendly CNG models.

The new Clean Energy OSU CNG station, which will also be open to the public,
will be located on the Southeast corner of Lakeview and Western on the
Stillwater campus. Slated for opening by Fall 2009, the new facility will be
equipped with two fast-fill CNG dispensers plus 24 time-fill CNG dispensers to
supply fuel for the OSU`s growing CNG campus bus fleet. OSU has announced plans
to acquire and deploy 24 new CNG transit buses and 150 CNG fleet vehicles in the
next three years, with up to 500 fleet vehicles anticipated within 10 years.

"Our goal is to have most of the vehicles designated for campus use equipped to
run on CNG," said OSU President Burns Hargis. "This is a big step in moving OSU
forward with its green initiatives. As a premier land-grant university, it is
important that we are good stewards of the earth."

OSU has been evaluating alternative fuel options for several years, and has now
opted to focus on CNG for its campus fleets. "Clean Energy is the leader in the
growing CNG arena, and we look forward to working with them on this important
initiative," President Hargis said.

James Harger, Clean Energy Senior Vice President, said, "We are very grateful
for the confidence that OSU has placed in Clean Energy, and are committed to
fully supporting their efforts to make the CNG fleet transition process an
unqualified success."

Harger added, "The use of CNG vehicles aligns very well with OSU`s efforts to
ensure climate protection and air quality improvements. CNG has proven to
significantly lower harmful emissions like nitrogen oxides, particulate matter,
toxic pollutants and greenhouse gases."

Clean Energy (Nasdaq: CLNE) 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, trucking, airport and municipal fleet markets,
fueling more than 15,000 vehicles at 176 strategic locations across the United
States and Canada. Clean Energy owns and operates two LNG production plants, one
in Willis, TX and one in Boron, CA, with combined capacity of 260,000 LNG
gallons per day and designed to expand to 340,000 LNG gallons per day as demand
increases. It also owns and operates a landfill gas facility in Dallas, TX that
produces renewable methane gas or biogas for delivery in the nation`s gas
pipeline network. Please visit www.cleanenergyfuels.com.

Forward-Looking Statements This news release 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, including statements about the number of CNG vehicles that are
planned to be deployed by OSU. Actual results and the timing of events could
differ materially from those anticipated in these forward-looking statements as
a result of several factors including CNG vehicle availability, available funds
in the OSU transportation budget and the anticipated timing of the station`s
construction. 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.

For Clean Energy Fuels Corp.
News Media
Bruce Russell, 310-559-4955 x101
brussell@cleanenergyfuels.com
or
Investors
Ina McGuinness, 310-954-1100

Copyright Business Wire 2009