Clean Energy Fuels Corp. engages in the provision of natural gas as an alternative fuel for vehicle fleets in the United States and Canada. It also builds and operates compressed natural gas (CNG) and liquefied natural gas (LNG) vehicle fueling stations, manufactures CNG and LNG equipment and technologies, and delivers CNG and LNG vehicle fuel. The company was founded by T. Boone Pickens and Andrew J. Littlefair in 1996 and is headquartered in Newport Beach, CA.