Gevo Inc (GEVO)

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You mean something like this:
http://biomassmagazine.com/articles/9924/gevo-announces-military-fuel-testing-ul-approval-milestones
By Staff | January 30, 2014
Gevo Inc. has announced the U.S. Army successfully flew a Sikorsky UH-60 Black Hawk helicopter on a 50/50 blend of its ATJ-8 renewable isobutnaol. The testing is being performed as part of a previously announced contract under which Gevo is supplying more than 16,000 gallons of fuel to the Army. Flight testing is being conducted at Aviation Flight Test Directorate on Redstone Arsenal, Ala., and is expected to be complete in March.

The company also confirmed that Underwriter Laboratories has approved the generic use of up to 16 percent isobutnaol in UL 87A pumps by any manufacturer meeting ASTM specifications. The approval provides service stations across the U.S. with assurance that isobutanol-blended gasoline can be supplied through current gasoline pumps without the need to purchase new equipment.