The Samson Investment Company is the largest privately held company of crude oil and natural gas in the United States. It was founded by Charles Schusterman in 1971. It is headquartered in Tulsa, Oklahoma. It has offices in Houston, Texas, Denver, Colorado,. Its current CEO is Randy Limbacher. It employs over 1,200 people. Its business is 50% natural gas and 50% oil/liquids. It has exploration sites in the United States, Canada, Russia, Venezuela, and the North Sea. It has invested billions of dollars in exploration.