The company's primary exploration and production activities were in the Appalachian Basin in Pennsylvania and West Virginia, as well as the Haynesville Shale.

The company also controlled 2,518,519 net undeveloped acres in New Brunswick, Canada, subject to an indefinite moratorium on hydraulic fracturing.

[3] In December 2014, the company acquired 413,000 net acres in the Upper Devonian, Marcellus and Utica shales in West Virginia and Southwest Pennsylvania from Chesapeake Energy for $5.375 billion.

[4][5] In December 2018, the company sold its assets in the Fayetteville Shale for net proceeds of $1.65 billion.

The company received exclusive licenses from the Department of Energy and Resource Development to conduct an exploration program.