Appalachian Basin Oil and Gas Assessments
Science Center Objects
The USGS has conducted numerous assessments of undiscovered oil and gas in the Appalachian Basin, including studies of the Marcellus Shale. The region extends from Alabama to Maine. The following is an overview of the assessments:
- 2019 Ordovician Point Pleasant Formation and Utica Shale (FS 2019-3044)
- 2019 Middle Devonian Marcellus Shale (FS 2019-3050)
- 2016 Sunbury and Chattanooga Shale (Factsheet)
- 2012 Utica Shale (Factsheet)
- 2011 Marcellus Shale (Factsheet, Open File Report)
- 2008 Utica-Lower Paleozoic TPS (Factsheet)
- 2006 Devonian Shale-Middle and Upper Paleozoic TPS (Open File Report)
- 2002 Assessment of Appalachian Basin (Factsheet)
- 2002 Carboniferous Coal-Bed Gas (Factsheet, Open File Report)
- 1995 Assessment of Appalachian Basin
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Date published: April 19, 2019Status: ActiveUnited States Assessments of Undiscovered Oil and Gas Resources
USGS Energy Resources Program provides periodic assessments of the oil and natural gas endowment of the United States and the World (click here for information about World Oil and Gas Assessments). This website provides access to new, prioritized, assessment results and supporting data for the United States, as part...
Contacts: Christopher J Schenk
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 resources in the Middle Devonian Marcellus 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 96.5 trillion cubic feet of gas in the Middle Devonian Marcellus Shale of the Appalachian Basin Province.
Higley, Debra K.; Enomoto, Catherine E; Leathers-Miller, Heidi M.; Ellis, Geoffrey S.; Mercier, Tracey J.; Schenk, Christopher J.; Trippi, Michael H.; Le, Phuong A.; Brownfield, Michael E.; Woodall, Cheryl A.; Marra, Kristen R.; Tennyson, Marilyn E.
Geologic cross section A–A′ through the Appalachian basin from the southern margin of the Ontario Lowlands province, Genesee County, western New York, to the Valley and Ridge province, Lycoming County, north-central Pennsylvania
IntroductionGeologic cross section A–A′ is the fifth in a series of cross sections constructed by the U.S. Geological Survey (USGS) to document and improve understanding of the geologic framework and petroleum systems of the Appalachian basin. Cross section A–A′ provides a regional view of the structural and stratigraphic frame...
Trippi, Michael H.; Ryder, Robert T. ; Enomoto, Catherine B.
Ordovician Point Pleasant/Utica-Lower Paleozoic Total Petroleum System—Revisions to the Utica-Lower Paleozoic Total Petroleum System in the Appalachian Basin Province
Hydrocarbon reserves and technically recoverable undiscovered resources in continuous accumulations are present in Upper Ordovician strata in the Appalachian Basin Province. The province includes parts of New York, Pennsylvania, Ohio, Maryland, West Virginia, Virginia, Kentucky, Tennessee, Georgia, and Alabama. The Upper Ordovician strata are part...
Enomoto, Catherine B.; Trippi, Michael H.; Higley, Debra K.
Assessment of undiscovered continuous gas resources in Upper Devonian Shales of the Appalachian Basin Province, 2017
Using a geology-based assessment methodology, the U.S. Geological Survey estimated mean undiscovered, technically recoverable continuous resources of 10.7 trillion cubic feet of natural gas in Upper Devonian shales of the Appalachian Basin Province.
Enomoto, Catherine B.; Trippi, Michael H.; Higley, Debra K.; Rouse, William A.; Dulong, Frank T.; Klett, Timothy R.; Mercier, Tracey J.; Brownfield, Michael E.; Leathers-Miller, Heidi M.; Finn, Thomas M.; Marra, Kristen R.; Le, Phuong A.; Woodall, Cheryl A.; Schenk, Christopher J.
Assessment of undiscovered oil and gas resources of the Mississippian Sunbury shale and Devonian–Mississippian Chattanooga shale in the Appalachian Basin Province, 2016
Using a geology-based assessment methodology, the U.S. Geological Survey estimated mean undiscovered, technically recoverable continuous resources that total 464 million barrels of oil and 4.08 trillion cubic feet of gas in the Lower Mississippian Sunbury Shale and Middle Devonian–Lower Mississippian Chattanooga Shale of the Appalachian Basin...
Higley, Debra K.; Rouse, William A.; Enomoto, Catherine B.; Trippi, Michael H.; Klett, Timothy R.; Mercier, Tracey J.; Brownfield, Michael E.; Tennyson, Marilyn E.; Drake, Ronald M.; Finn, Thomas M.; Gianoutsos, Nicholas J.; Pearson, Ofori N.; Doolan, Colin A.; Le, Phuong A.; Schenk, Christopher J.
Revisions to the original extent of the Devonian Shale-Middle and Upper Paleozoic Total Petroleum System
Technically recoverable undiscovered hydrocarbon resources in continuous accumulations are present in Upper Devonian and Lower Mississippian strata in the Appalachian Basin Petroleum Province. The province includes parts of New York, Pennsylvania, Ohio, Maryland, West Virginia, Virginia, Kentucky, Tennessee, Georgia, and Alabama. The Upper...
Enomoto, Catherine B.; Rouse, William A.; Trippi, Michael H.; Higley, Debra K.
Geologic Cross Section I–I′ Through the Appalachian Basin from the Eastern Margin of the Illinois Basin, Jefferson County, Kentucky, to the Valley and Ridge Province, Scott County, Virginia
Geologic cross section I‒I’ is the fourth in a series of cross sections constructed by the U.S. Geological Survey to document and improve understanding of the geologic framework and petroleum systems of the Appalachian basin. Cross section I‒I’ provides a regional view of the structural and stratigraphic framework of the Appalachian...
Ryder, Robert T.; Trippi, Michael H.; Swezey, Christopher S.
U.S. Geological Survey assessments of continuous (unconventional) oil and gas resources, 2000 to 2011
From 2000 to 2011, the U.S. Geological Survey conducted 139 quantitative assessments of continuous (unconventional) oil and gas accumulations within the United States. This report documents those assessments more fully than previously done by providing detailed documentation of both the assessment input and output. This report also compiles the...
Map of assessed coalbed-gas resources in the United States, 2014
This report presents a digital map of coalbed-gas resource assessments in the United States as part of the U.S. Geological Survey’s (USGS) National Assessment of Oil and Gas Project. Using a geology-based assessment methodology, the USGS quantitatively estimated potential volumes of undiscovered, technically recoverable natural gas resources...
Biewick, Laura R. H.
Map of assessed shale gas in the United States, 2012
The U.S. Geological Survey has compiled a map of shale-gas assessments in the United States that were completed by 2012 as part of the National Assessment of Oil and Gas Project. Using a geology-based assessment methodology, the U.S. Geological Survey quantitatively estimated potential volumes of undiscovered gas within shale-gas assessment units...
Biewick, Laura R. H.
Thermal maturity map of Devonian shale in the Illinois, Michigan, and Appalachian basins of North America
Much of the oil and gas in the Illinois, Michigan, and Appalachian basins of eastern North America is thought to be derived from Devonian shale that is within these basins (for example, Milici and others, 2003; Swezey, 2002, 2008, 2009; Swezey and others, 2005, 2007). As the Devonian strata were buried by younger sediments, the Devonian shale was...
East, Joseph A.; Swezey, Christopher S.; Repetski, John E.; Hayba, Daniel O.-
Date published: October 2, 2019USGS National and Global Oil and Gas Assessment Project - Appalachian Basin Province, Point Pleasant Formation and Utica Shale Assessment Unit Boundaries and Assessment Input Data Forms
This data release contains the boundaries of assessment units and input data for the assessment of undiscovered gas hydrate resources on the north slope of Alaska. 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...
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Date published: October 2, 2019
USGS National and Global Oil and Gas Assessment Project - Appalachian Basin Province, Middle Devonian Marcellus Shale Assessment Units and Input Data Forms
This data release contains the boundaries of assessment units and input data for the assessment of undiscovered gas resources in the Middle Devonian Marcellus Shale of the Appalachian Basin Province, 2019. 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...
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Date published: March 14, 2019Downloadable Data for Appalachian Basin Oil and Gas Assessments
Follow this link to access downloadable GIS and tabular data for this province.
Attribution: Central Energy Resources Science Center -
Date published: January 1, 2018
USGS National and Global Oil and Gas Assessment Project-Appalachian Basin Province, Upper Devonian Shales Assessment Unit Boundaries and Assessment Input Forms
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 a...
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Date published: October 3, 2019USGS Estimates 214 trillion Cubic Feet of Natural Gas in Appalachian Basin Formations
The Marcellus Shale and Point Pleasant-Utica Shale formations of the Appalachian Basin contain an estimated mean of 214 trillion cubic feet of undiscovered, technically recoverable continuous resources of natural gas, according to new USGS assessments.
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Date published: March 25, 2015Appalachian Basin Energy Resources — A New Look at an Old Basin
Appalachian coal and petroleum resources are still available in sufficient quantities to contribute significantly to fulfilling the nation’s energy needs, according to a recent study by the U.S. Geological Survey.
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Date published: August 23, 2011USGS Releases New Assessment of Gas Resources in the Marcellus Shale, Appalachian Basin
The Marcellus Shale contains about 84 trillion cubic feet of undiscovered, technically recoverable natural gas and 3.4 billion barrels of undiscovered, technically recoverable natural gas liquids according to a new assessment by the U. S. Geological Survey (USGS).
Attribution: States and Territories, Region 3: Great Lakes -
Date published: April 10, 2003
2003 Assessment of Oil and Gas Resources in Appalachian Basin Completed
The USGS has just completed a geologically based assessment of the technically recoverable, undiscovered oil and gas resources of the Appalachian Basin Province. This area includes parts of New York, Pennsylvania, Ohio, Maryland, West Virginia, Virginia, Kentucky, Tennessee, Georgia, and Alabama.
Attribution: States and Territories, Region 3: Great Lakes