Chesapeake Energy Marketing, also known as CEMI, is a wholly owned subsidiary of Chesapeake Energy Corporation, which is one of the largest producers of natural gas in the United States. Chesapeake Energy Marketing provides a range of marketing services for Chesapeake Energy Corporation and its partners. The company operates more than 220 gathering systems that comprise of over 2,500 miles of pipeline. It offers commodity price structuring, contract administration and nomination services. Founded in 1998, Chesapeake Energy Corporation provides exploration, developmental drilling, and corporate and property acquisitions services. The company offers transportation, compression engineering, training, site management and environmental regulation services through its various subsidiaries.