Stephanie Gaswirth, Ph.D.
Stephanie Gaswirth is an Associate Program Coordinator for the Energy Resources Program. She has been a research geologist in Central Energy Resources Science Center since 2006, working on petroleum resource assessments as part of the National and Global Assessment Project (NAGA).
Biography
Stephanie has worked on resource assessments of the Williston and Anadarko basins and was the task leader for the assessment of continuous oil resources of the Bakken and Three Forks Formations in 2013. She is currently the task leader for the assessment of continuous resources in the Permian Basin. Stephanie has served as the Secretary for the Rocky Mountain Association of Geologists (RMAG) Board of Directors and was a co-editor for the 2011 RMAG Guidebook: The Bakken Petroleum System- Past, Present, and Future. She has given numerous talks at professional meetings on her research and assessment work, and has been published in AAPG Bulletin, Oil and Gas Journal, and other peer-reviewed scientific journals.
Prior to joining the USGS, Stephanie was employed with ExxonMobil Upstream Research Company in Houston, Texas. She received her B.A. from Franklin & Marshall College, M.S. from Rutgers University, and Ph.D. from the University of Colorado, Boulder.
Science and Products
Williston Basin Oil and Gas Assessments
The U.S. Geological Survey completed the following assessments of conventional and continuous oil and gas resources of the Devonian Three Forks Formation and Devonian and Mississippian Bakken Formation in the Williston Basin Province 5031 of North Dakota, Montana, and South Dakota.
Permian Basin Oil and Gas Assessments
The USGS has conducted several assessments of undiscovered oil and gas in formations in the Permian Basin of western Texas. This inlcudes the following.
USGS National and Global Oil and Gas Assessment Project - Permian Basin Province, Midland Basin, Wolfcamp Shale Assessment Unit Boundaries and Assessment Input Data Forms, Version 2.0
The Assessment Unit is the fundamental unit used in the National Assessment Project for the assessment of undiscovered oil and gas resources. The Assessment Unit is defined within the context of the higher-level Total Petroleum System. The Assessment Unit is shown herein as a geographic boundary interpreted, defined, and mapped by the geologist responsible for the province and incorporates...
USGS National and Global Oil and Gas Assessment Project-Permian Basin Province, Delaware Basin, Wolfcamp Shale and Bone Spring Assessment Units and Input Data
This data release contains the boundaries of assessment units and input data for the assessment of undiscovered oil and gas in the Delaware Basin, Wolfcamp Shale and Bone Spring. The Assessment Unit is the fundamental unit used in the National Assessment Project for the assessment of undiscovered oil and gas resources. The Assessment Unit is defined within the context of the higher-level Total...
Structure contour and isopach maps of the Wolfcamp shale and Bone Spring Formation of the Delaware Basin, Permian Basin Province, New Mexico and Texas
A series of structure contour and isopach maps for the Wolfcamp shale and the Bone Spring Formation of the Delaware Basin, Permian Basin Province, were generated in support of the U.S. Geological Survey 2018 assessment of undiscovered continuous oil and gas resources. The interpreted formation tops used to generate the maps are from the IHS Markit...
Gaswirth, Stephanie B.
Assessment of undiscovered oil and gas resources in the Upper Cretaceous Austin Chalk and Tokio and Eutaw Formations, U.S. Gulf Coast, 2019
Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean resources of 6.9 billion barrels of oil and 41.5 trillion cubic feet of natural gas in conventional and continuous accumulations in the Upper Cretaceous Austin Chalk and Tokio and Eutaw Formations onshore and in State...
Pitman, Janet K.; Paxton, Stanley T.; Kinney, Scott A.; Whidden, Katherine J.; Haines, Seth S.; Varela, Brian A.; Mercier, Tracey J.; Woodall, Cheryl A.; Schenk, Christopher J.; Leathers-Miller, Heidi M.; Pearson, Ofori N.; Burke, Lauri A.; Le, Phuong A.; Birdwell, Justin E.; Gianoutsos, Nicholas J.; French, Katherine L.; Drake, Ronald M.; Finn, Thomas M.; Ellis, Geoffrey S.; Gaswirth, Stephanie B.; Marra, Kristen R.; Tennyson, Marilyn E.; Shorten, Chilisa M.
Assessment of tight-gas resources in the Grand Erg/Ahnet Province of Algeria, 2019
Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean resources of 30.5 trillion cubic feet of tight gas in the Grand Erg/Ahnet Province of Algeria.
Brownfield, Michael E.; Schenk, Christopher J.; Mercier, Tracey J.; Tennyson, Marilyn E.; Woodall, Cheryl A.; Finn, Thomas M.; Le, Phuong A.; Pitman, Janet K.; Drake, Ronald M.; Gaswirth, Stephanie B.; Leathers-Miller, Heidi M.
Assessment of undiscovered continuous oil and gas resources in the Upper Ordovician Point Pleasant Formation and Utica Shale of the Appalachian Basin Province, 2019
Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable continuous mean resources of 1.8 billion barrels of oil and 117.2 trillion cubic feet of gas in the Upper Ordovician Point Pleasant Formation and Utica Shale of the Appalachian Basin Province.
Enomoto, Catherine B.; Trippi, Michael H.; Higley, Debra K.; Drake, Ronald M.; Gaswirth, Stephanie B.; Mercier, Tracey J.; Brownfield, Michael E.; Leathers-Miller, Heidi M.; Le, Phuong A.; Marra, Kristen R.; Tennyson, Marilyn E.; Woodall, Cheryl A.; Schenk, Christopher J.
Assessment of undiscovered gas hydrate resources in the North Slope of Alaska, 2018
Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean resources of about 54 trillion cubic feet of gas resources within gas hydrates in the North Slope of Alaska.
Collett, Timothy S.; Lewis, Kristen A.; Zyrianova, Margarita V.; Haines, Seth S.; Schenk, Christopher J.; Mercier, Tracey J.; Brownfield, Michael E.; Gaswirth, Stephanie B.; Marra, Kristen R.; Leathers-Miller, Heidi M.; Pitman, Janet K.; Tennyson, Marilyn E.; Woodall, Cheryl A.; Houseknecht, David W.
Assessment of continuous oil resources in the Eastern Great Basin Province of Nevada, Utah, and Idaho, 2018
The U.S. Geological Survey (USGS) quantitatively assessed the potential for undiscovered, technically recoverable continuous oil and gas resources in the Eastern Great Basin Province (Anna and others, 2007) of Nevada, Utah, and Idaho (fig. 1). The assessment focused on the area of the province between the Roberts Mountains and...
Schenk, Christopher J.; Mercier, Tracey J.; Woodall, Cheryl A.; Finn, Thomas M.; Gaswirth, Stephanie B.; Marra, Kristen R.; Le, Phuong A.; Brownfield, Michael E.; Leathers-Miller, Heidi M.; Drake, Ronald M.; Kinney, Scott A.
Assessment of shale-oil resources of the Sirte Basin Province, Libya, 2019
Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean resources of 23.7 billion barrels of shale oil and 23 trillion cubic feet of associated gas in the onshore part of the Sirte Basin Province of Libya.
Schenk, Christopher J.; Mercier, Tracey J.; Woodall, Cheryl A.; Le, Phuong A.; Pitman, Janet K.; Drake, Ronald M.; Brownfield, Michael E.; Gaswirth, Stephanie B.; Finn, Thomas M.
Assessment of undiscovered conventional oil and gas resources of the Grand Erg/Ahnet Province, Algeria, 2018
Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean resources of 378 million barrels of oil and 7 trillion cubic feet of gas in the Grand Erg/Ahnet Province of Algeria.
Schenk, Christopher J.; Mercier, Tracey J.; Tennyson, Marilyn E.; Finn, Thomas M.; Le, Phuong A.; Pitman, Janet K.; Drake, Ronald M.; Brownfield, Michael E.; Gaswirth, Stephanie B.; Leathers-Miller, Heidi M.
Assessment of Undiscovered Oil and Gas Resources of the Reggane Basin Province, Algeria, 2018
Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean resources of 1.3 billion barrels of oil and 63 trillion cubic feet of gas in the Reggane Basin Province of Algeria.
Schenk, Christopher J.; Brownfield, Michael E.; Mercier, Tracey J.; Woodall, Cheryl A.; Le, Phuong A.; Tennyson, Marilyn E.; Finn, Thomas M.; Marra, Kristen R.; Gaswirth, Stephanie B.; Leathers-Miller, Heidi M.; Pitman, Janet K.; Drake, Ronald M.
Assessment of undiscovered continuous tight-gas resources in the Mesaverde Group and Wasatch Formation, Uinta-Piceance Province, Utah and Colorado, 2018
Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean resources of 24 trillion cubic feet of gas in the Mesaverde Group and Wasatch Formation of the Uinta-Piceance Province in northeast Utah and northwest Colorado.
Drake, Ronald M.; Schenk, Christopher J.; Mercier, Tracey J.; Le, Phuong A.; Finn, Thomas M.; Johnson, Ronald C.; Woodall, Cheryl A.; Gaswirth, Stephanie B.; Marra, Kristen R.; Pitman, Janet K.; Leathers-Miller, Heidi M.; Haines, Seth S.; Tennyson, Marilyn E.
Assessment of undiscovered oil and gas resources in the Tindouf Basin Province, North Africa, 2018
Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean resources of 2.6 billion barrels of oil and 123.9 trillion cubic feet of gas in the Tindouf Basin Province of North Africa.
Brownfield, Michael E.; Schenk, Christopher J.; Mercier, Tracey J.; Woodall, Cheryl A.; Le, Phuong A.; Tennyson, Marilyn E.; Finn, Thomas M.; Gaswirth, Stephanie B.; Pitman, Janet K.; Marra, Kristen R.; Leathers-Miller, Heidi M.; Drake, Ronald M.
Assessment of undiscovered oil and gas resources in the South Florida basin, 2016
Using a geology-based assessment methodology, the U.S. Geological Survey estimated mean undiscovered, technically recoverable resources of 49 million barrels of oil and 18 billion cubic feet of gas in the onshore and State waters part of the South Florida basin.
Roberts-Ashby, Tina L.; Hackley, Paul C.; Lohr, Celeste D.; Schenk, Christopher J.; Mercier, Tracey J.; Whidden, Katherine J.; Le, Phuong A.; Tennyson, Marilyn E.; Gaswirth, Stephanie B.; Woodall, Cheryl A.; Brownfield, Michael E.; Leathers-Miller, Heidi M.; Marra, Kristen R.; Finn, Thomas M.
USGS Announces Largest Continuous Oil Assessment in Texas and New Mexico
Estimates Include 46.3 Billion Barrels of Oil, 281 Trillion Cubic feet of Natural Gas, and 20 Billion Barrels of Natural Gas Liquids in Texas and New Mexico’s Wolfcamp Shale and Bone Spring Formation.
USGS Estimates 20 Billion Barrels of Oil in Texas’ Wolfcamp Shale Formation
This is the largest estimate of continuous oil that USGS has ever assessed in the United States.