Diamondback Energy, Inc. is a company engaged in hydrocarbon exploration headquartered in Midland, Texas. As of December 31, 2020, the company had 1,788 million barrels of oil equivalent of estimated proved reserves, of which 52% was petroleum, 24% was natural gas, and 24% was natural gas liquids. The company's reserves are all in the Permian Basin. As of February 2024, it is ranked 400th on the Fortune 500. Wikipedia