Chesapeake Energy 

Chesapeake Energy Corporation engages in the acquisition, exploration, and development of properties for the production of oil, natural gas, and natural gas liquids (NGL) from underground reservoirs in the United States. The company holds interests in natural gas resource plays, including the Marcellus in Northern Appalachian Basin in Pennsylvania; Haynesville located in Northwestern Louisiana; Eagle Ford in South Texas; Brazos Valley in Southeast Texas; and Powder River Basin in Wyoming. As of December 31, 2020, it owned interests in approximately 7,400 oil and natural gas wells, including 5,900 properties with working interest and 1,500 properties with royalty interest; and had estimated proved reserves of 60 Mmboe. The company was founded in 1989 and is headquartered in Oklahoma City, Oklahoma.