Mark L. Shidler - President

Mark L. Shidler Inc., Midstream Compression Services, Inc., and Prime Royalty Company, LLC are led by their president and founder Mark L. Shidler. Mark has four decades of experience in various facets of the petroleum industry. Prior to founding Mark L Shidler Inc. in 1978, Mark held engineering and management positions with several large oil and gas companies, including Getty Oil Company, Ashland Oil Inc., and was a consultant for Occidental Petroleum.

Mark graduated from the University of Oklahoma in 1970 with a Bachelor of Science in Petroleum Engineering. He is a registered professional engineer in the State of Texas, and a member of the Society of Petroleum Engineers, SIPES, IPAA, TIPRO, and the Houston Producer's Forum.


Andrew M. Shidler - Vice President, Engineering and Real Estate

Andrew has extensive knowledge of all facets of oil & gas acquisition and divestment, including economic/ engineering evaluations, field operations experience, and regulatory issues/property tax appraisals. He previously held the position of engineer with the Oil & Gas Asset Clearinghouse. Andrew supervises operational cost analysis, general state regulatory filings, and economic and engineering analysis for the company's current and future properties.  Andrew is also responsible for analyzing real estate acquisitions, property management, and the development of properties owned by Campbell Road Partners, LLC.

Andrew graduated from The University of Texas at Austin where he received his Bachelor of Science in Petroleum Engineering. He is a member of the Society of Petroleum Engineers, IPAA, and TIPRO. Andrew is a licensed Real Estate Agent in the State of Texas.  Additionally, Andrew holds an FAA pilot certificate with single and multi-engine instrument ratings along with complex and high-performance endorsements. 


Jeffrey H. Shidler - Vice President, Land and Administration

Jeffrey has 20 years of diverse experience in acquisitions and divestitures (in many different basins and plays), evaluation of future acquisitions and drilling opportunities, business development, negotiations, land/leasing, and contract matters, and strategic and financial planning. Jeffrey also currently manages a private investment portfolio with interests in energy, real estate, healthcare, and other public and private equity investments.

Jeffrey graduated from the University of Texas at Austin with a Bachelor of Arts with honors and from the  University of Houston with a Master of Business Administration with honors. He is a member of the IPAA and TIPRO.


Diana Medina - Accounting Manager

Diana has 15 years of oil and gas accounting experience. She previously held several positions of increasing responsibility at Alta Mesa Resouces, Inc. and Kingfisher Midstream, LLC. 

Diana graduated from the Philippine School of Business Administration with a Bachelor of Science in Business Administration.  


Nancy B. Pousson - Revenue Accounting Supervisor

Nancy has many years of oil and gas accounting and data management experience and is primarily responsible for revenue accounting and production accounting. She supervises revenue distribution and all state regulatory filings for our operated wells.

Nancy graduated from Steven F. Austin University with a Bachelor of Business Administration.


Mark L. Shidler, Inc. Assumes Management Responsibility of Plains Production, Inc.
(Houston, TX – January 2, 2020) Mark L. Shidler, Inc. is pleased to announce that effective, January 1, 2020, it has assumed day-...
Continue Reading...
Mark L. Shidler, Inc. Attends the TIPRO Nasdaq Market Close Ceremony on Monday, September 15th, 2014
      © 2014, The NASDAQ OMX Group, Inc. (New York, September 15, 2014, From Left: Jeffrey H. Shidler ...
Continue Reading...

Contact Us

Mark L. Shidler, Inc.
1313 Campbell Rd., Bldg. D
Houston, TX 77055

Tel: 713-222-9291
Fax: 713-224-5523
8am-5pm CST M - F