Assessment of Undiscovered Continuous and Conventional Oil and Gas Resources in the Woodford and Barnett Shales of the Permian Basin Province, Texas and New Mexico, 2025

Fact Sheet 2026-3059
National and Global Petroleum Assessment
By: , and 

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Abstract

Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean continuous and conventional resources of 1.6 billion barrels of oil and 28.3 trillion cubic feet of gas in the Woodford and Barnett Shales of the Permian Basin Province.

Suggested Citation

Cicero, A.D., Schenk, C.J., Lagesse, J.H., Johnson, B.G., Mercier, T.J., Leathers-Miller, H.M., Gelman, S.E., Hearon, J.S., and Le, P.A., 2026, Assessment of undiscovered continuous and conventional oil and gas resources in the Woodford and Barnett Shales of the Permian Basin Province, Texas and New Mexico, 2025: U.S. Geological Survey Fact Sheet 2026–3059, 4 p., https://doi.org/10.3133/fs20263059.

ISSN: 2327-6932 (online)

Study Area

Table of Contents

  • Introduction
  • Geologic Summary
  • Total Petroleum System and Assessment Units
  • Undiscovered Resources Summary
  • References Cited
Publication type Report
Publication Subtype USGS Numbered Series
Title Assessment of undiscovered continuous and conventional oil and gas resources in the Woodford and Barnett Shales of the Permian Basin Province, Texas and New Mexico, 2025
Series title Fact Sheet
Series number 2026-3059
DOI 10.3133/fs20263059
Publication Date January 14, 2026
Year Published 2026
Language English
Publisher U.S. Geological Survey
Publisher location Reston VA
Contributing office(s) Central Energy Resources Science Center
Description Report: 4 p,; Data Release
Country United States
State New Mexico, Texas
Other Geospatial Woodford and Barnett Shales
Online Only (Y/N) Y
Additional publication details