Tesoro files suit against CARB

By | January 03, 2009
Tesoro Refining & Marketing Co., an operating subsidiary of San Antonio-based Tesoro Corp., filed a lawsuit against the California Air Resources Board to prevent the implementation of a new regulation that would require refiners such as Tesoro to blend more ethanol into gasoline. CARB ruled in August that California refiners increase the amount of crop-based ethanol in gasoline from the current level of 5.7 percent to as much as 10 percent by December 2009.