Christopher J Schenk

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August 6, 2024

United 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. This website provides access to new, prioritized, assessment results and supporting data for the United States, as part of the Energy Policy and Conservation Act (EPCA).

By

Geology, Energy, and Minerals Mission Area, Energy Resources Program, Central Energy Resources Science Center

United States Assessments of Undiscovered Oil and Gas Resources

August 6, 2024

United 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. This website provides access to new, prioritized, assessment results and supporting data for the United States, as part of the Energy Policy and Conservation Act (EPCA).

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January 1, 2024

World Oil and Gas Resource Assessments

The USGS World Energy Project conducts geologic studies that provide an understanding of the quantity, quality, and geologic distribution of world oil and gas resources. Our geologic studies are conducted in an impartial manner and are performed in collaboration and partnership with energy experts within and outside government. Through synthesis and improved understanding of global oil and gas...

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Geology, Energy, and Minerals Mission Area, Energy Resources Program, Central Energy Resources Science Center, International Programs

World Oil and Gas Resource Assessments

January 1, 2024

World Oil and Gas Resource Assessments

The USGS World Energy Project conducts geologic studies that provide an understanding of the quantity, quality, and geologic distribution of world oil and gas resources. Our geologic studies are conducted in an impartial manner and are performed in collaboration and partnership with energy experts within and outside government. Through synthesis and improved understanding of global oil and gas...

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January 1, 2024

Appalachian Basin Oil and Gas Assessments

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.

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Geology, Energy, and Minerals Mission Area, Energy Resources Program, Central Energy Resources Science Center

Appalachian Basin Oil and Gas Assessments

January 1, 2024

Appalachian Basin Oil and Gas Assessments

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.

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January 1, 2024

Raton Basin-Sierra Grande Uplift Oil and Gas Assessments

The U.S. Geological Survey completed the following assessments of undiscovered oil and gas potential of the Raton Basin–Sierra Grande Uplift Province 5041 of northeastern New Mexico and southeastern Colorado.

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Geology, Energy, and Minerals Mission Area, Energy Resources Program, Central Energy Resources Science Center

Raton Basin-Sierra Grande Uplift Oil and Gas Assessments

January 1, 2024

Raton Basin-Sierra Grande Uplift Oil and Gas Assessments

The U.S. Geological Survey completed the following assessments of undiscovered oil and gas potential of the Raton Basin–Sierra Grande Uplift Province 5041 of northeastern New Mexico and southeastern Colorado.

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January 1, 2024

Montana Thrust Belt Oil and Gas Assessments

The U.S. Geological Survey completed the following assessments of undiscovered oil and gas resources of the Montana Thrust Belt Province 5027 of northwestern Montana.

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Geology, Energy, and Minerals Mission Area, Energy Resources Program, Central Energy Resources Science Center

Montana Thrust Belt Oil and Gas Assessments

January 1, 2024

Montana Thrust Belt Oil and Gas Assessments

The U.S. Geological Survey completed the following assessments of undiscovered oil and gas resources of the Montana Thrust Belt Province 5027 of northwestern Montana.

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January 1, 2024

Powder River Basin Oil and Gas Assessments

The U.S. Geological Survey completed the following assessments of undiscovered oil and gas potential of the Powder River Basin Province 5033.

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Geology, Energy, and Minerals Mission Area, Energy Resources Program, Central Energy Resources Science Center

Powder River Basin Oil and Gas Assessments

January 1, 2024

Powder River Basin Oil and Gas Assessments

The U.S. Geological Survey completed the following assessments of undiscovered oil and gas potential of the Powder River Basin Province 5033.

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January 1, 2024

Southwestern Wyoming Oil and Gas Assessments

The U.S. Geological Survey completed the following assessments of undiscovered oil and gas potentional of the Southwestern Wyoming Province 5037 of southwestern Wyoming, northwestern Colorado, and northeastern Utah.

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Geology, Energy, and Minerals Mission Area, Energy Resources Program, Central Energy Resources Science Center

Southwestern Wyoming Oil and Gas Assessments

January 1, 2024

Southwestern Wyoming Oil and Gas Assessments

The U.S. Geological Survey completed the following assessments of undiscovered oil and gas potentional of the Southwestern Wyoming Province 5037 of southwestern Wyoming, northwestern Colorado, and northeastern Utah.

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January 1, 2024

Uinta-Piceance Basin Oil and Gas Assessments

The U.S. Geological Survey (USGS) has conducted a number of geology-based assessments of undiscovered oil and gas resources in the Uinta-Piceance Basin (USGS Province 5020) of western Colorado and Eastern Utah. Recent assessments include.

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Geology, Energy, and Minerals Mission Area, Energy Resources Program, Central Energy Resources Science Center

Uinta-Piceance Basin Oil and Gas Assessments

January 1, 2024

Uinta-Piceance Basin Oil and Gas Assessments

The U.S. Geological Survey (USGS) has conducted a number of geology-based assessments of undiscovered oil and gas resources in the Uinta-Piceance Basin (USGS Province 5020) of western Colorado and Eastern Utah. Recent assessments include.

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January 1, 2024

Anadarko Basin Oil and Gas Assessments

The U.S. Geological Survey completed the following assessments of undiscovered oil and gas potential of the Anadarko Basin Province 5058.

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Geology, Energy, and Minerals Mission Area, Energy Resources Program, Central Energy Resources Science Center

Anadarko Basin Oil and Gas Assessments

January 1, 2024

Anadarko Basin Oil and Gas Assessments

The U.S. Geological Survey completed the following assessments of undiscovered oil and gas potential of the Anadarko Basin Province 5058.

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January 1, 2023

Wind River Basin Oil and Gas Assessments

The U.S. Geological Survey completed the following assessments of undiscovered oil and gas potential of the Wind River Basin Province 5035 in central Wyoming.

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Geology, Energy, and Minerals Mission Area, Energy Resources Program, Central Energy Resources Science Center

Wind River Basin Oil and Gas Assessments

January 1, 2023

Wind River Basin Oil and Gas Assessments

The U.S. Geological Survey completed the following assessments of undiscovered oil and gas potential of the Wind River Basin Province 5035 in central Wyoming.

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December 19, 2018

Eastern Basins Oil and Gas Assessments

The USGS has conducted several assessments of undiscovered oil and gas in formations in the Blue Ridge Thrust Belt (5068), Piedmont Province (5069), Atlantic Coastal Plain Province (5070), and the New England Province (5072). These basins are generally east of the Appalachian Basin Province (5067).

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Geology, Energy, and Minerals Mission Area, Energy Resources Program, Central Energy Resources Science Center

Eastern Basins Oil and Gas Assessments

December 19, 2018

Eastern Basins Oil and Gas Assessments

The USGS has conducted several assessments of undiscovered oil and gas in formations in the Blue Ridge Thrust Belt (5068), Piedmont Province (5069), Atlantic Coastal Plain Province (5070), and the New England Province (5072). These basins are generally east of the Appalachian Basin Province (5067).

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December 7, 2018

Southern Oklahoma Oil and Gas Assessments

The U.S. Geological Survey completed the following assessments of undiscovered continuous oil and gas resources of the Southern Oklahoma Province (5061).

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Geology, Energy, and Minerals Mission Area, Energy Resources Program, Central Energy Resources Science Center

Southern Oklahoma Oil and Gas Assessments

December 7, 2018

Southern Oklahoma Oil and Gas Assessments

The U.S. Geological Survey completed the following assessments of undiscovered continuous oil and gas resources of the Southern Oklahoma Province (5061).

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Filter Total Items: 65

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Filter Total Items: 318

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Year 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 1983 1982 1981 1980 1979 1978 1977 1976 1975 1974 1973 1972 1971 1970 1969 1968 1967 1966 1965 1964 1963 1962 1961 1960 1959 1958 1957 1956 1955 1954 1953 1952 1951 1950 1949 1948 1947 1946 1945 1944 1943 1942 1941 1940 1939 1938 1937 1936 1935 1934 1933 1932 1931 1930 1929 1928 1927 1926 1925 1924 1923 1922 1921 1920 1919 1918 1917 1916 1915 1914 1913 1912 1911 1910 1909 1908 1907 1906 1905 1904 1903 1902 1901 1900 1899 1898 1897 1896 1895 1894 1893 1892 1891 1890 1889 1888 1887 1886 1885 1884 1883 1882 1881 1880 1879 1878 1877 1876 1875 1874 1873 1872 1871 1870 1869 1868 1867 1866 1865 1864 1863 1862 1861 1860 1859 1858 1857 1856 1855 1854 1853 1852 1851 1850 1849 1848 1847 1846 1845 1844 1843 1842 1841 1840 1839 1838 1837 1836 1835 1834 1833 1832 1831 1830 1829 1828 1827 1826 1825 1824 1823 1822 1821 1820 1819 1818 1817 1816 1815 1814 1813 1812 1811

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June 5, 2012

Assessment of undiscovered oil and gas resources of the East Coast Mesozoic basins of the Piedmont, Blue Ridge Thrust Belt, Atlantic Coastal Plain, and New England Provinces, 2011 Assessment of undiscovered oil and gas resources of the East Coast Mesozoic basins of the Piedmont, Blue Ridge Thrust Belt, Atlantic Coastal Plain, and New England Provinces, 2011

During the early opening of the Atlantic Ocean in the Mesozoic Era, numerous extensional basins formed along the eastern margin of the North American continent from Florida northward to New England and parts of adjacent Canada. The basins extend generally from the offshore Atlantic continental margin westward beneath the Atlantic Coastal Plain to the Appalachian Mountains. Using a...

Authors

Robert C. Milici, James L. Coleman, Elisabeth L. Rowan, Troy A. Cook, Ronald R. Charpentier, Mark A. Kirschbaum, Timothy R. Klett, Richard M. Pollastro, Christopher J. Schenk

By

Energy Resources Program

May 22, 2012

Assessment of undiscovered oil and gas resources of the Assam, Bombay, Cauvery, and Krishna-Godavari Provinces, South Asia, 2011 Assessment of undiscovered oil and gas resources of the Assam, Bombay, Cauvery, and Krishna-Godavari Provinces, South Asia, 2011

Using a geology-based assessment methodology, the U.S. Geological Survey estimated volumes of undiscovered, technically recoverable, conventional petroleum resources for the Assam, Bombay, Cauvery, and Krishna–Godavari Provinces, South Asia. The estimated mean volumes are as follows: (1) Assam Province, 273 million barrels of crude oil, 1,559 billion cubic feet of natural gas, and 43...

Authors

T. R. Klett, Christopher J. Schenk, Craig J. Wandrey, Ronald R. Charpentier, Troy A. Cook, Michael E. Brownfield, Janet K. Pitman, Richard M. Pollastro

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Energy Resources Program, Central Energy Resources Science Center

April 23, 2012

Assessment of potential additions to conventional oil and gas resources of the world (outside the United States) from reserve growth, 2012 Assessment of potential additions to conventional oil and gas resources of the world (outside the United States) from reserve growth, 2012

The U.S. Geological Survey estimated volumes of technically recoverable, conventional petroleum resources resulting from reserve growth for discovered fields outside the United States that have reported in-place oil and gas volumes of 500 million barrels of oil equivalent or greater. The mean volumes were estimated at 665 billion barrels of crude oil, 1,429 trillion cubic feet of natural...

Authors

Timothy R. Klett, Troy A. Cook, Ronald R. Charpentier, Marilyn E. Tennyson, Emil Attanasi, Phil A. Freeman, Robert T. Ryder, Donald L. Gautier, Mahendra K. Verma, Phuong A. Le, Christopher J. Schenk

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Energy Resources Program, Central Energy Resources Science Center

April 18, 2012

An estimate of undiscovered conventional oil and gas resources of the world, 2012 An estimate of undiscovered conventional oil and gas resources of the world, 2012

Using a geology-based assessment methodology, the U.S. Geological Survey estimated means of 565 billion barrels of conventional oil and 5,606 trillion cubic feet of undiscovered conventional natural gas in 171 priority geologic provinces of the world, exclusive of the United States.

Authors

Christopher J. Schenk

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Energy Resources Program, Central Energy Resources Science Center

April 12, 2012

Assessment of undiscovered oil and gas resources of the South Africa Coastal Province, Africa Assessment of undiscovered oil and gas resources of the South Africa Coastal Province, Africa

The South Africa Coastal Province along the South Africa coast recently was assessed for undiscovered, technically recoverable oil, natural gas, and natural gas liquids resources as part of the U.S. Geological Survey's (USGS) World Oil and Gas Assessment. Using a geology-based assessment methodology, the USGS estimated mean volumes of 2.13 billion barrels of oil, 35.96 trillion cubic...

Authors

Michael E. Brownfield, Christopher J. Schenk, Ronald R. Charpentier, Timothy R. Klett, Troy A. Cook, Richard M. Pollastro

By

Energy Resources Program, Central Energy Resources Science Center

April 12, 2012

Assessment of undiscovered oil and gas resources of four East Africa Geologic Provinces Assessment of undiscovered oil and gas resources of four East Africa Geologic Provinces

Four geologic provinces along the east coast of Africa recently were assessed for undiscovered, technically recoverable oil, natural gas, and natural gas liquids resources as part of the U.S. Geological Survey's (USGS) World Oil and Gas Assessment. Using a geology-based assessment methodology, the USGS estimated mean volumes of 27.6 billion barrels of oil, 441.1 trillion cubic feet of...

Authors

Michael E. Brownfield, Christopher J. Schenk, Ronald R. Charpentier, Timothy R. Klett, Troy A. Cook, Richard M. Pollastro, Marilyn E. Tennyson

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Energy Resources Program, Central Energy Resources Science Center

March 30, 2012

Assessment of undiscovered oil and gas resources of Papua-New Guinea, Eastern Indonesia, and East Timor, 2011 Assessment of undiscovered oil and gas resources of Papua-New Guinea, Eastern Indonesia, and East Timor, 2011

Using a geology-based assessment methodology, the U.S. Geological Survey estimated means of 5.8 billion barrels of oil and 115 trillion cubic feet of undiscovered natural gas in five geologic provinces in the areas of Papua New Guinea, eastern Indonesia, and East Timor.

Authors

Christopher J. Schenk, Michael E. Brownfield, Ronald R. Charpentier, Troy A. Cook, Timothy R. Klett, Janet K. Pitman, Richard M. Pollastro

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Energy Resources Program, Central Energy Resources Science Center

March 16, 2012

Assessment of undiscovered conventional oil and gas resources of Bonaparte Basin, Browse Basin, Northwest Shelf, and Gippsland Basin Provinces, Australia, 2011 Assessment of undiscovered conventional oil and gas resources of Bonaparte Basin, Browse Basin, Northwest Shelf, and Gippsland Basin Provinces, Australia, 2011

Using a geology-based assessment methodology, the U.S. Geological Survey estimated means of 4.7 billion barrels of undiscovered oil and 227 trillion cubic feet of undiscovered natural gas in three major offshore petroleum basins of northwest Australia and in the Gippsland Basin of southeast Australia.

Authors

Richard M. Pollastro, Michael E. Brownfield, Ronald R. Charpentier, Troy A. Cook, Timothy R. Klett, Mark A. Kirschbaum, Janet K. Pitman, Christopher J. Schenk

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Energy Resources Program, Central Energy Resources Science Center

February 27, 2012

Assessment of potential unconventional Carboniferous-Permian gas resources of the Liaohe Basin eastern uplift, Liaoning Province, China, 2011 Assessment of potential unconventional Carboniferous-Permian gas resources of the Liaohe Basin eastern uplift, Liaoning Province, China, 2011

The U.S. Geological Survey estimated a mean of 448 billion cubic feet of potential technically recoverable unconventional natural gas in Carboniferous and Permian coal-bearing strata in the eastern uplift of the Liaohe Basin, Liaoning Province, China.

Authors

Richard M. Pollastro, Christopher J. Potter, Christopher J. Schenk, Ronald R. Charpentier, Troy A. Cook, Timothy R. Klett, Mark A. Kirschbaum

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Energy Resources Program, Central Energy Resources Science Center

February 27, 2012

Assessment of undiscovered oil and gas resources of the southern Siberian craton (Baykit High, Nepa--Botuoba High, Angara--Lena Terrace, and Cis--Patom Foredeep Provinces), Russia, 2011 Assessment of undiscovered oil and gas resources of the southern Siberian craton (Baykit High, Nepa--Botuoba High, Angara--Lena Terrace, and Cis--Patom Foredeep Provinces), Russia, 2011

Using a geology-based assessment methodology, the U.S. Geological Survey estimated volumes of undiscovered, technically recoverable, conventional petroleum resources for the southern Siberian craton provinces of Russia. The mean volumes were estimated at 3.0 billion barrels of crude oil, 63.3 trillion cubic feet of natural gas, and 1.2 billion barrels of natural gas liquids.

Authors

T. R. Klett, Christopher J. Schenk, Craig J. Wandrey, Ronald R. Charpentier, Michael E. Brownfield, Janet K. Pitman, Richard M. Pollastro, Troy A. Cook, Marilyn E. Tennyson

By

Energy Resources Program, Central Energy Resources Science Center

February 24, 2012

Assessment of potential oil and gas resources in source rocks of the Alaska North Slope, 2012 Assessment of potential oil and gas resources in source rocks of the Alaska North Slope, 2012

The U.S. Geological Survey estimated potential, technically recoverable oil and gas resources for source rocks of the Alaska North Slope. Estimates (95-percent to 5-percent probability) range from zero to 2 billion barrels of oil and from zero to nearly 80 trillion cubic feet of gas.

Authors

David W. Houseknecht, William A. Rouse, Christopher P. Garrity, Katherine J. Whidden, Julie A. Dumoulin, Christopher J. Schenk, Ronald R. Charpentier, Troy A. Cook, Stephanie B. Gaswirth, Mark A. Kirschbaum, Richard M. Pollastro

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Energy Resources Program

February 8, 2012

Assessment of undiscovered oil and gas resources in conventional and continuous petroleum systems in the Upper Cretaceous Eagle Ford Group, U.S. Gulf Coast region, 2011 Assessment of undiscovered oil and gas resources in conventional and continuous petroleum systems in the Upper Cretaceous Eagle Ford Group, U.S. Gulf Coast region, 2011

Using a geology-based assessment methodology, the U.S. Geological Survey assessed means of (1) 141 million barrels of oil (MMBO), 502 billion cubic feet of natural gas (BCFG), and 16 million barrels of natural gas liquids (MMBNGL) in the conventional Eagle Ford Updip Sandstone Oil and Gas Assessment Unit (AU); (2) 853 MMBO, 1,707 BCFG, and 34 MMBNGL in the continuous Eagle Ford Shale Oil...

Authors

Russell F. Dubiel, Janet K. Pitman, Ofori N. Pearson, Krystal Pearson, Scott A. Kinney, Michael D. Lewan, Lauri Burke, Laura Biewick, Ronald R. Charpentier, Troy A. Cook, Timothy R. Klett, Richard M. Pollastro, Christopher J. Schenk

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Energy Resources Program, Central Energy Resources Science Center

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