Hilcorp Energy Company is a privately-held independent oil and natural gas exploration and production company. Founded in 1989, the company has grown through acquisitions and exploration into one of the largest privately-held oil and gas companies in the United States. Hilcorp is known for its innovative approach to oil and gas exploration and production, and has been recognized for its safety and environmental stewardship. The company has operations in several states, including Alaska, Louisiana, Pennsylvania, Texas, and Wyoming.