East Resources, Inc., was an oil and gas exploration and production company with a focus on unconventional shale oil and gas resources in the United States.
History
The company was founded in 1983 by Terrence Pegula.[1] Based in Cattaraugus County, New York through much of the late 20th century the company specialized in oil. In 2008, the company began focusing on natural gas through hydraulic fracturing. It profited heavily upon discovery of deep layers of natural gas in the Marcellus Formation and development of the hydraulic fracturing ("fracking") recovery process.[2] At the height of the company it was based in Parkersburg, West Virginia with additional offices in Warrendale, Pennsylvania, Allegany, New York, and Denver, Colorado, with natural gas processing facilities in Northern Pennsylvania.[3]
East Resources sold most of its assets to Royal Dutch Shell