 As part of their new mission, the 92 OG also gained two squadrons of Boeing KC-135 Stratotanker aerial refueling aircraft.The 92d Air Refueling Squadron and the 43rd Air Refueling Squadron.The Group ended B-52 alert duties in September 1992, and from February 1993, performed air sampling missions for the United States Department of Energy with modified B-52Hs.