Spartan Delta Corp. engages in the exploration, development, and production of petroleum and natural gas properties in the Western Canadian Sedimentary Basin in Canada. As of December 31, 2019, it held working interests in 10.7 net oil wells and 25.8 net gas wells in the Valhalla/Rycroft area of Alberta. The company was formerly known as Return Energy Inc. and changed its name to Spartan Delta Corp. in May 2020. Spartan Delta Corp. was incorporated in 2006 and is headquartered in Calgary, Canada.