$CHK As of December 31, 2018, the company had 1.448 billion barrels of oil equivalent (8.86×109 GJ) of estimated proved reserves, of which 73% was natural gas, 20% was petroleum, and 7% was natural gas liquids.
Production output: 521 thousand barrels of oil ... Traded as: NYSE: CHK; S&P 400 component Products: Petroleum; Natural gas Total assets: $10.947 billion (2018)