Cardinal River Energy Company is a diversified energy company that was founded in 1987 in Oklahoma City, Oklahoma. Through its various affiliates, the company is engaged in oil and gas exploration and production, energy related acquisitions, energy financing, and other energy related businesses.

From its beginning as a non-operator that participated in third party prospects, the company now develops and operates its own prospects, and retains up to a 100% working interest in its wells. The company owns operated and non-operated interests in over 1000 wells located in Oklahoma, Texas, Arkansas, Kansas, New Mexico, Mississippi, Louisiana and Illinois.