WASHINGTON, D.C. - A 2-1 panel of the Federal Circuit U.S. Court of Appeals on April 28 reversed a Federal Claims Court judge's ruling awarding summary judgment to the U.S. government after finding that contracts the government entered into with oil companies during World War II for the production of aviation fuel (avgas) require the government to reimburse the companies for costs they incurred under the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA) (Shell Oil Company, et al. v. United States of America, No. 2013-5051, Fed. Cir.; 2014 U.S. App. LEXIS 7865).