Senior Airman Noah Lazurka takes a sample from a fuel tank Feb. 11, 2015, at Seymour Johnson Air Force Base, N.C. Petroleum, oil and lubricants Airmen perform regular checks to ensure the quality of the base’s jet and ground fuel. Lazurka is a 4th Logistics Readiness Squadron fuels laboratory technician. (U.S. Air Force photo/Senior Airman Ashley J. Thum)