John E. Jochen - Sr. Reservoir Engineer


  • B.Sc., Petroleum Engineering, Texas A&M University, 1979

  • M.Sc., Petroleum Engineering, Texas A&M University, 1993


Work Experience

  • Sr. Reservoir Engineer, Mosaic Petroleum Analytics LLC, Bryan, TX

  • Sr. Reservoir Engineer, Unconventional Resources, LLC, College Station, TX

  • Pricipal Engineer, Schlumberger Oilfield Services, College Station, TX

  • Sr. Production Engineer, S. A. Holditch & Associates, Inc.

  • Project/Production Engineer, Tenneco Oil Company, Houston, TX



Mr. Jochen has worked over 38 years in the oil and gas industry as a petroleum engineer primarily focused on production and production data analysis of unconventional gas reservoirs. Prior to becoming a part of Mosaic Petroleum Analytics LLC, he joined Unconventional Resources, LLC (UGR) at its inception in February 2007 and worked there until May 2017 when the company was sold to Painted Pony Energy (TSX: PONY). During his tenure at UGR, Mr. Jochen was involved in an array of projects associated with the analysis of the potential of unconventional reservoirs, focused on forecasting individual well performance with his technical tool box including single-well analytical simulators, finite-difference simulators, decline curve analysis techniques, as well as custom built spreadsheets.

Since 2012, Mr. Jochen has also served as a Senior Lecturer in the Petroleum Engineering Department at Texas A&M University in College Station, Texas, where he developed and continues to teach a senior-level undergraduate course on Production Engineering Problems. This is a hands-on, problem solving class where real-life situations are discussed in class and the students work on solving the problems outside of class.

Prior to Unconventional Gas Resources, Mr. Jochen worked 10 years for Schlumberger Oilfield Services in Project Management, predominantly in technical consulting of gas reservoir projects from their design to implementation to final delivery to clients. These projects ranged from single-well production and pressure transient analyses to multi-well field studies to litigation support for expert witness testimony. In June 1989, Mr. Jochen joined S.A. Holditch & Associates, Inc. (prior to Schlumberger’s 1997 acquisition of the Holditch consulting firm) where he was involved in all aspects of reservoir and production engineering with a strong mixture of applied research and industry experience, particularly focused on unconventional tight and shale gas reservoirs. Mr. Jochen began his career with Tenneco Oil Company’s Gulf Coast Division as an area production engineer in charge of supervising well work, designing surface facilities, and projecting production and income performance. In 1986, he transferred to Tenneco’s corporate headquarters where he worked in an acquisition and disposition group and was involved in the dissolution of Tenneco’s oil and gas industry foot print.

Mr. Jochen is a registered professional engineer in the state of Texas and a member of the Society of Petroleum Engineers.

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