Staff Sgt. Joseph Mrak, the NCOIC of the fuel service center with 386th Expeditionary Logistics Readiness Squadron, tracks fuel inventories on his computer in the fuel service center at an undisclosed location in Southwest Asia, Sept. 10, 2017. The fuel service center is responsible for maintaining accountability of the installation’s fuel inventory and reporting that data to the Defense Logistics Agency daily. (U.S. Air Force photo by Tech. Sgt. Jonathan Hehnly)