PENSACOLA, Fla. - Lt. j.g. Lewis Johnson (left) and Lt. Rene Baez, HC-144A Ocean Sentry fixed-wing aircraft pilots from Coast Guard Air Training Center Mobile, Ala., conduct an overflight of skimming operations June 12, 2010. Coast Guard air crews regularly conduct aerial surveillance in support of the Deepwater Horizon oil spill response. U.S. Coast Guard photo by Seaman Grace Baldwin.