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Assessment of undiscovered shale-gas resources in the Grand Erg/Ahnet Basin Province of Algeria, 2026

April 22, 2026

 Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean resources of 80.1 trillion cubic feet of shale gas in the Grand Erg/Ahnet Basin Province of Algeria.

Publication Year 2026
Title Assessment of undiscovered shale-gas resources in the Grand Erg/Ahnet Basin Province of Algeria, 2026
DOI 10.3133/fs20263005
Authors Michael E. Brownfield, Christopher J. Schenk, Tracey J. Mercier, Marilyn E. Tennyson, Cheryl A. Woodall, Thomas M. Finn, Phuong A. Le, Heidi M. Leathers-Miller, Janet K. Pitman, Ronald M. Drake, Stephanie B. Gaswirth
Publication Type Report
Publication Subtype USGS Numbered Series
Series Title Fact Sheet
Series Number 2026-3005
Index ID fs20263005
Record Source USGS Publications Warehouse
USGS Organization Central Energy Resources Science Center
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