Exclusive: Chevron, Exxon Seek 'Small Refinery' Waivers from U.S. Biofuels Law
by Jarrett Renshaw and Chris Prentice (Reuters) Global energy giants Chevron Corp and Exxon Mobil have asked U.S. regulators for exemptions to the nation’s biofuels policy that have historically been reserved for small companies in financial distress, according to sources familiar