Marjo Operating Company

Welcome to Marjo Operating Company, Inc.

Marjo is an independent oil and gas operating company based in Tulsa, Oklahoma with operations across the Mid-Continent Region of the United States. Please take some time to read through our website and get to know more about who we are and what we do.

Marjo Oil Company was originally founded in 1978 by Joseph Mueller. In 1993, Marjo Operating Co., Inc. was formed. The Company has operated in the states of Oklahoma, Texas, New Mexico and Colorado in the United States and in the province of Alberta in Canada. In 2014, Marjo Operating Mid-Continent, LLC was formed. Marjo conducts operations and contract operations for third parties. We specialize in conventional and unconventional drilling, completion and production techniques in these areas, including but not limited to: hydraulic fracturing, horizontal and directional drilling, waterflooding, and dewatering. At present, the Company operates over 100 wells under the collective ownership of Mark Meador, Brian Keefer, Joe Mueller, Becky McMurphy and Luke Simon. With Marjo’s knowledge and experience in the oil and gas upstream industry, the Company’s primary goal is to pursue and explore for oil and gas in the region using proven engineering techniques to achieve the largest possible reserve base while keeping operating expenses to a minimum.

Marjo has been directly involved in the operations of oil and gas wells through exploration and acquisition in the Mid-Continent Region for over 30 years