Publications
Browse recent USGS publications related to energy resources.
Filter Total Items: 2852
Assessment of undiscovered shale-gas resources in the Utica Shale of eastern Canada, 2026 Assessment of undiscovered shale-gas resources in the Utica Shale of eastern Canada, 2026
Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean resources of 9 trillion cubic feet of shale gas in the Utica Shale of eastern Canada.
Authors
Christopher J. Schenk, Tracey J. Mercier, Phuong A. Le, Andrea D. Cicero, Sarah E. Gelman, Jane S. Hearon, Benjamin G. Johnson, Jenny H. Lagesse, Heidi M. Leathers-Miller
Release and recapture: Limited carbon mobilization in sediment adjacent to Central Atlantic Magmatic Province sills, Florida, USA Release and recapture: Limited carbon mobilization in sediment adjacent to Central Atlantic Magmatic Province sills, Florida, USA
Large Igneous Provinces (LIPs) are associated with dramatic changes to the Earth system; their rapid release of carbon may initiate catastrophic climatic changes causing mass extinction. This carbon release is often associated with volcanic emissions, yet metamorphic carbon production is poorly constrained. Metamorphic carbon devolatilization occurs as intrusions interact with host...
Authors
Lindsi Allman, E.M. Stewart, Kanwa Sengupta, Mainak Mookherjee, Miles Kelsey, Paul C. Hackley, Ryan J. McAleer, Aaron M. Jubb, Rebecca Stokes
Assessment of undiscovered conventional oil and gas resources in the Niger Delta Province of Nigeria and Cameroon, 2026 Assessment of undiscovered conventional oil and gas resources in the Niger Delta Province of Nigeria and Cameroon, 2026
Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean conventional resources of 11.4 billion barrels of oil and 88.2 trillion cubic feet of gas in the Niger Delta Province of Nigeria and Cameroon.
Authors
Christopher J. Schenk, Tracey J. Mercier, Phuong A. Le, Andrea D. Cicero, Sarah E. Gelman, Jane S. Hearon, Benjamin G. Johnson, Jenny H. Lagesse, Heidi M. Leathers-Miller
Assessment of undiscovered conventional oil and gas resources in the central Arabian Peninsula, 2026 Assessment of undiscovered conventional oil and gas resources in the central Arabian Peninsula, 2026
Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean conventional resources of 13.3 billion barrels of oil and 111 trillion cubic feet of gas in the central Arabian Peninsula.
Authors
Christopher J. Schenk, Tracey J. Mercier, Phuong A. Le, Andrea D. Cicero, Sarah E. Gelman, Jane S. Hearon, Benjamin G. Johnson, Jenny H. Lagesse, Heidi M. Leathers-Miller
Assessment of undiscovered conventional oil and gas resources in the Amu Darya Basin and Afghan-Tajik Basin Provinces of Turkmenistan, Uzbekistan, Tajikistan, Afghanistan, and Iran, 2026 Assessment of undiscovered conventional oil and gas resources in the Amu Darya Basin and Afghan-Tajik Basin Provinces of Turkmenistan, Uzbekistan, Tajikistan, Afghanistan, and Iran, 2026
Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean conventional resources of 442 million barrels of oil and 218 trillion cubic feet of gas in the Amu Darya Basin and Afghan-Tajik Basin Provinces of Turkmenistan, Uzbekistan, Tajikistan, Afghanistan, and Iran.
Authors
Christopher J. Schenk, Tracey J. Mercier, Phuong A. Le, Andrea D. Cicero, Sarah E. Gelman, Jane S. Hearon, Benjamin G. Johnson, Jenny H. Lagesse, Heidi M. Leathers-Miller
Regional characterization of coal resources in the Gulf Coast Coal Region—In support of coal as a potential source for critical minerals and rare earth elements Regional characterization of coal resources in the Gulf Coast Coal Region—In support of coal as a potential source for critical minerals and rare earth elements
There is increasing interest in extracting critical minerals (CM), including rare earth elements (REE), from coals in the United States to address the overreliance on imported REE. The Gulf Coast and the Fort Union regions are the two major lignite-bearing regions within the United States. Recent REE and CM studies of the lignite in these regions have indicated that the coals may be a...
Authors
Peter D. Warwick, Robert C. Reedy, Bridget R. Scanlon
Assessment of undiscovered shale-oil and shale-gas resources in the Berkine, Illizi, Hamra, Murzuq, and Erdis Kufra Basins of northern Africa, 2026 Assessment of undiscovered shale-oil and shale-gas resources in the Berkine, Illizi, Hamra, Murzuq, and Erdis Kufra Basins of northern Africa, 2026
Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean resources of 2.4 billion barrels of shale oil and 65.4 trillion cubic feet of shale gas in the Berkine, Illizi, Hamra, Murzuq, and Erdis Kufra Basins of northern Africa.
Authors
Michael E. Brownfield, Christopher J. Schenk, Tracey J. Mercier, Kristen R. Marra, Cheryl A. Woodall, Thomas M. Finn, Phuong A. Le, Heidi M. Leathers-Miller, Ronald M. Drake II, Scott A. Kinney
Assessment of undiscovered tight-gas resources in the Berkine, Illizi, and Hamra Basins of northern Africa, 2026 Assessment of undiscovered tight-gas resources in the Berkine, Illizi, and Hamra Basins of northern Africa, 2026
Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean resources of 114.1 trillion cubic feet of tight gas in the Berkine, Illizi, and Hamra Basins of northern Africa.
Authors
Michael E. Brownfield, Christopher J. Schenk, Tracey J. Mercier, Thomas M. Finn, Cheryl A. Woodall, Phuong A. Le, Heidi M. Leathers-Miller, Kristen R. Marra, Ronald M. Drake, Scott A. Kinney
Coal beneath Federal lands in the United States—Mines, reserves, and resources Coal beneath Federal lands in the United States—Mines, reserves, and resources
The U.S. Geological Survey (USGS) compiled a list of coal mines and tabulated the coal reserves and available coal resources beneath Federal lands in the conterminous United States. Coal resources beneath Federal lands in Alaska are also discussed in this report. In 2024, the 34 coal mines on Federal lands produced more than 261 million short tons of coal. Surface mining is used at 23 of...
Authors
Brian N. Shaffer, Michelle N. Johnston, Scott A. Kinney
Spatio-temporal modeling for assessing geoenergy resources: A workflow applied to gas in place variation in coal beds Spatio-temporal modeling for assessing geoenergy resources: A workflow applied to gas in place variation in coal beds
The ability to estimate spatio-temporal changes in hydrocarbon reservoir properties and energy resources within pore volumes is essential for optimizing production, reservoir management, geologic energy storage, and safety in underground mining operations. In coal seams, predicting remaining methane gas-in-place (GIP) is critical for quantifying producible gas and improving mine safety...
Authors
Oktay Erten, C. Özgen Karacan, Clayton V. Deutsch
Background and geologic model for the 2024 U.S. Geological Survey assessment of undiscovered conventional petroleum resources in the Norphlet Formation, U.S. Gulf Coast Background and geologic model for the 2024 U.S. Geological Survey assessment of undiscovered conventional petroleum resources in the Norphlet Formation, U.S. Gulf Coast
The Upper Jurassic Norphlet Formation is a stratigraphic unit located in the subsurface of the United States Gulf coastal plain and offshore Gulf of America (Gulf of Mexico). The Norphlet consists of clastic sediments derived from the southern Appalachian highlands, and was deposited in a continental dryland setting on the margins of the early Gulf of America rift basin. The formation...
Authors
John W. Counts
Characterisation of bituminite and testing reproducibility of vitrinite and bituminite reflectance measurements in organic‑carbon-rich intervals of the Kimmeridge Clay Formation: ICCP Identification of Dispersed Organic Matter Working Group round robin ex Characterisation of bituminite and testing reproducibility of vitrinite and bituminite reflectance measurements in organic‑carbon-rich intervals of the Kimmeridge Clay Formation: ICCP Identification of Dispersed Organic Matter Working Group round robin ex
Three round robin exercises (RRE) aimed at characterizing bituminite and testing the reproducibility of random vitrinite (VRo %) and bituminite (BitRo %) reflectance measurements on samples of dispersed organic matter from organic‑carbon rich shale intervals of Kimmeridge Clay Formation were conducted in 2016, 2018, and 2020. This work was conducted by the Identification of Dispersed...
Authors
Jolanta Kus, A.G. Borrego, Barbara Bielowicz, Peter J. Crosdale, M.-E. Damoulianou, Deolinda Flores, Carolina Fonseca, Paula Gonçalves, Paul C. Hackley, Maria Hámor-Vidó, Stefanie Henne, Bjoern Holstein, Iwona Jelonek, Stavros Kalaitzidis, M. Luzhbina, J.G. Mendonça Filho, T.R. Menezes, Magdalena Misz-Kennan, R. Orban, Walter Pickel, N.V. Pronina, P. N. Ranasinghe, Julito Reyes, George Siavalas, A.K. Singh, P.K. Singh, Isabel Suárez-Ruiz, I. Sýkorová, Qingyong Luo, Dragana Životić, P. Wignall, ICCP