For Key Valuation Items, Revenues & Margins, Key Assets (% of Revenues), Key Working Capital Items, Cash Management Indicators, Key Liquidity Items, Key Cash Flow Items (% of Revenues) please log-in. Company Profile Chesapeake Energy Corp. (NYSE:CHK) explores, develops and produces oil and natural gas properties. Its principal activities include discovering and developing unconventional natural gas and oil fields onshore in the U.S. The company has also vertically integrated its operations and owns substantial marketing, midstream and oilfield services businesses directly and indirectly through its subsidiaries Chesapeake Energy Marketing, Inc., Chesapeake Midstream Development LP, Chesapeake Oilfield Services LLC, and Chesapeake Midstream Partners LP.