Cimarex Energy Co. operates as an independent oil and gas exploration and production company primarily in Texas, Oklahoma, and New Mexico. As of December 31, 2020, it had a total proved reserves of 531.0 million barrels of oil equivalent; 1.36 trillion cubic feet of proved gas reserves; 144.1 million barrels (MMBbls) of proved oil reserves; and 159.8 MMBbls of natural gas liquids reserves primarily located in the Permian Basin and Mid-Continent regions. The company also owned an interest in 2,765 net productive oil and gas wells. Cimarex Energy Co. was founded in 2002 and is headquartered in Denver, Colorado.