J.R. Butler and  Company (JRBCo) is a consulting firm with  more than fifty years of service to the oil and gas industry including the integration of exploitation and exploration geology, formation evaluation (e.g. well log and well test analyses, petrophysical studies, etc.) production engineering, reservoir engineering, geophysics and economics in the solution of complex field  development, engineering problems and petroleum industry investment decisions.

The professional staff of JRBCo consists of reservoir and production engineers, geologists, geophysicists and log analysts. The staff averages more than 20 years oil and gas experience; many have advanced degrees.