Assessment of Undiscovered Conventional Oil and Gas Resources of South America and the Caribbean, 2025

Fact Sheet 2026-3066
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 conventional resources of 37.6 billion barrels of oil and 281.6 trillion cubic feet of gas in 31 geologic provinces of South America and the Caribbean.

Suggested Citation

Schenk, C.J., Mercier, T.J., Le, P.A., Cicero, A.D., Gelman, S.E., Hearon, J.S., Johnson, B.G., Lagesse, J.H., and Leathers-Miller, H.M., 2026, Assessment of undiscovered conventional oil and gas resources of South America and the Caribbean, 2025: U.S. Geological Survey Fact Sheet 2026–3066, 4 p., https://doi.org/10.3133/fs20263066.

ISSN: 2327-6932 (online)

Study Area

Table of Contents

  • Introduction
  • Geologic Provinces and Total Petroleum Systems
  • Undiscovered Resources Summary
  • References Cited
Publication type Report
Publication Subtype USGS Numbered Series
Title Assessment of undiscovered conventional oil and gas resources of South America and the Caribbean, 2025
Series title Fact Sheet
Series number 2026-3066
DOI 10.3133/fs20263066
Publication Date March 11, 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
Other Geospatial Caribbean, South America
Online Only (Y/N) Y
Additional publication details