Clean Energy Fuels (CLNE), a utility and natural gas company controlled by legendary energy investor T. Boone Pickens,  is set to launch a 20 million share IPO (Initial Public Offering) on Friday May 25.

The stock is scheduled to trade on the NASDAQ Global Market under the symbol CLNE.

Clean Energy is the leading provider of natural gas as an alternative fuel for vehicle fleets in the United States and Canada.  The company operates about 170 gas stations in the US and Canada where  customers can fuel their vehicles with compressed natural gas (CNG) or liquefied natural gas (LNG).

CLNE plans to use the IPO proceeds to construct an LNG plant in the Western US as well as to purchase fleet vehicles that it will later sell to customers.

Founder Boone Pickens owns about 73% of the company.