Diamondback Energy is an American 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