VSO Petroleum
Consultants, Inc

Providing excellent engineering and reliable oil and gas consulting services in a cost efficient manner. We are a Boutique Consultancy delivering answers you can trust.

Our petroleum advisory services include:

About Us

VSO Petroleum Consultants, Inc. is a premier reservoir engineering and geological consulting firm. Our team works for capital providers, operators, attorneys, high net worth individuals, institutional investors, and restructuring advisors to provide highly trusted technical evaluations of upstream and midstream oil and gas assets. Focused on the Lower 48 and Gulf of Mexico, our firm has a reputation for delivering a fair and unbiased view of reserves and asset value.


VSO’s reputation is trusted industry-wide by both technical and financial professionals. Every VSO report adheres to the highest standards of technical excellence and reliability.


We are very responsive to clients and place a high degree of focus on each project. We put in extra effort to be highly attentive and creative for our clients, and to ensure every report relies upon a technically supportable evaluation.


All readers of our reports and materials obtain great clarity into our analysis and key asset value drivers. Consumers of our differentiated reports and supporting documentation aren’t left guessing; our analysis is transparent and thorough.

“Our firm has been in the business of appraising oil and gas assets for nearly 30 years. We have always prioritized customer service, and we fully understand the technical and financial importance of our reports for numerous stakeholder groups. We are here to provide clear and accurate analysis that supports reserves and valuations you can trust.“
Stan S. Valdez, P.E. President

Who We Work For

Permian Eagle Ford Gulf of Mexico Ark-LA-Tex Appalachia Williston DJ Basin Anadarko \ Powder River Michigan Illinois Black Warrior Arkoma Gulf Coast Palo Duro Ft. Worth Bighorn Wind River Green River Uinta Piceance San Juan Raton Sacramento San Joaquin L.A. Basin

Click each dot on the map to learn more about each basin, or use the buttons to the right.

Click each dot on the map to learn more about each basin, or use the buttons below.

VSO Leadership

Meet the Whole VSO Team

Latest from LinkedIn

Permian Basin Completed Lateral Lengths
Eagle Ford Re-Frac Potential
Eagle Ford Re-Frac’s Outperforming Original Frac
Subsurface Database Gremlins