NEWPORT BEACH, Calif.--(BUSINESS WIRE)-- Clean Energy Fuels Corp. (CLNE) (NASDAQ: CLNE), the largest provider of renewable natural gas (RNG) for the transportation industry, has announced the launch ...

Clean Energy's second demo truck program will allow trucking fleets to try out the Cummins X15N natural gas engine in their own operations. Clean Energy’s demo truck program will give heavy-duty ...