United States Geological Survey 2002 Downloadable GIS Data Reston,VA U. S. Geological Survey, Central Energy Resources Team Kirschbaum, M.A. 2002 USGS Digital Data Series DDS-69-D Denver, Colorado U.S. Geological Survey, Central Energy Resources Team https://pubs.usgs.gov/dds/dds-069/dds-069-d/ https://doi.org/10.5066/P9Q4ZWBQ Cell maps for each oil and gas assessment unit were created by the USGS as a method for illustrating the degree of exploration, type of production, and distribution of production in an assessment unit or province. Each cell represents a quarter-mile square of the land surface, and the cells are coded to represent whether the wells included within the cell are predominantly oil-producing, gas-producing, both oil and gas-producing, dry, or the type of production of the wells located within the cell is unknown. The well information was initially retrieved from the IHS Energy Group, PI/Dwights PLUS Well Data on CD-ROM, which is a proprietary, commercial database containing information for most oil and gas wells in the U.S. Cells were developed as a graphic solution to overcome the problem of displaying proprietary PI/Dwights PLUS Well Data. No proprietary data are displayed or included in the cell maps. The data from PI/Dwights PLUS Well Data were current as of October 2001 when the cell maps were created in 2002. The purpose of the cell map is to display the exploration maturity, type of production, and distribution of production in quarter-mile cells in each of the oil and gas assessment units and each of the provinces defined for the National Assessment of Oil and Gas Project. 2002 publication date Complete As needed -111.00 -106.25 43.50 39.50 Central Energy Resources Team Keyword Thesaurus National Assessment of Oil and Gas USGS World Energy Region 5 Energy Resources Oil Natural Gas Resource Assessment Earth Science Natural Resources U.S. Geological Survey USGS Geology Assessment Unit Kirschbaum, M.A. Cells ArcIMS Metadata Server Theme Codes geoscientificInformation Gateway to the Earth draft 9 28-Jun-2002 Oil shale resources Oil sand resources Coalbed methane resources Gas hydrate resources Natural gas resources Economic geology EnergyResourceActivities oilgas noga2000 nogasw none United States USGS World Energy Region 5 Southwestern Wyoming WY CO UT Augmented FIPS 10-4 and FIPS 6-4, version 1.0 US08 = Colorado US49 = Utah US56 = Wyoming USGS Oil and Gas Provinces (NOGA-95) Southwestern Wyoming USGS Oil and Gas Total Petroleum Systems (NOGA-2000) 503701 = Phosphoria Total Petroleum System 503702 = Mowry Composite Total Petroleum System 503703 = Niobrara Total Petroleum System 503704 = Hilliard-Baxter-Mancos Total Petroleum System 503705 = Mesaverde Total Petroleum System 503706 = Mesaverde-Lance-Fort Union Composite Total Petroleum System 503707 = Lewis Total Petroleum System 503708 = Lance-Fort Union Composite Total Petroleum System 503709 = Wasatch-Green River Composite Total Petroleum System USGS Oil and Gas Assessment Units (NOGA-2000) 50370101 = Sub-Cretaceous Conventional Oil and Gas 50370201 = Mowry Conventional Oil and Gas 50370261 = Mowry Continuous Gas 50370361 = Niobrara Continuous Oil 50370362 = Niobrara Continuous Gas 50370401 = Hilliard-Baxter-Mancos Conventional Oil and Gas 50370461 = Hilliard-Baxter-Mancos Continuous Gas 50370501 = Mesaverde Conventional Oil and Gas 50370561 = Almond Continuous Gas 50370562 = Rock Springs-Ericson Continuous Gas 50370581 = Mesaverde Coalbed Gas 50370601 = Mesaverde-Lance-Fort Union Conventional Oil and Gas 50370661 = Mesaverde-Lance-Fort Union Continuous Gas 50370681 = Mesaverde Coalbed Gas 50370682 = Fort Union Coalbed Gas 50370701 = Lewis Conventional Oil and Gas 50370761 = Lewis Continuous Gas 50370801 = Lance-Fort Union Conventional Oil and Gas 50370861 = Lance-Fort Union Continuous Gas 50370881 = Lance Coalbed Gas 50370882 = Fort Union Coalbed Gas 50370961 = Wasatch-Green River Continuous Gas 50370981 = Wasatch-Green River Coalbed Gas USGS Metadata Identifier USGS:60c8ba20d34e86b9389dc382 none none U.S. Geological Survey - CERSC Data Management Services Project mailing and physical

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Denver CO 80225 USA 1-888-275-8747 datamgt@usgs.gov https://www.sciencebase.gov/catalog/file/get/60c8ba20d34e86b9389dc382?f=__disk__1e%2F30%2Fb5%2F1e30b560ae08d9befa1a3820605ea496e664bd8d JPEG Biewick, L.R.H. and Weiler, S. ARC/INFO version 8.2 https://energy.cr.usgs.gov/oilgas/noga/oilgasmap.htm. The accuracy of the cells, as created by the Arc Macro Language (AML) program of L.R.H. Biewick and S. Weiler, depends upon the accuracy of the oil and gas well information in the 2001 version of the IHS Energy Group, PI/Dwights PLUS Well Data. For the National Assessment of Oil and Gas Project, the assumption was made that the data in PI/Dwights PLUS were of sufficient accuracy for such a national-scale analysis. The cells were defined using the 2001 well data in the IHS Energy Group, PI/Dwights PLUS. The PI/Dwights PLUS Well Data contains over two million, nine hundred thousand wells for the U.S., which, although not a complete tabulation of all U.S. wells, is the most complete well database available for the United States. A visual comparison was made using a sampling of cell locations and cell attributes with well locations and attributes. In particular, the values of latitude and longitude for the wells in PI/Dwights PLUS Well Data were assumed to be accurate. Kirschbaum, M.A. 2002 U.S. Geological Survey Digital Data Series DDS-69-D Denver, Colorado U.S. Geological Survey na CD-ROM 2002 publication date USGS Southwestern Wyoming Assessment Team (2002) Province 37 assessment, digital map data, source attributes IHS Energy Group 2001 Denver, Colorado IHS Energy Group Digital 200109 200109 PI/Dwights PLUS Well Data on CD-ROM Lat./Long. Points, Final Well Class The province geologist mapped the Assessment Unit boundary on a hard copy base map at 1:2,000,000 provided by the project that contained data from IHS Energy Group, PI/Dwights PLUS Well Data (2001 update), and the Nehring Significant Oil and Gas Field File (2001 update). The province geologist then plotted all other available geologic and geophysical well data and information on the hard copy base map to assist in mapping the Assessment Unit boundary. Following review, the Assessment Unit boundary was digitally transferred from the hard copy base map using Arcedit. 2001 Oil and gas well data for the U.S. were run through an Arc Macro Language (AML) program written by L.R.H. Biewick and S. Weiler. This program aggregated and converted the 2001 PI/Dwights PLUS Well Data into quarter-mile cells and latitude-longitude points that represent the center-points of the quarter-mile cells. For each of the Assessment Units, cells were isolated from the national coverage based on the Assessment Unit wells. The Assessment Unit cells were then assigned an attribute based on the type of production of the wells located within the cell. Region, province, total petroleum system, and assessment unit codes and names were appended to the file using lookup information acquired from tables created for the National Assessment of Oil and Gas Project. 2003 Vector Complete chain Entity point GT-polygon composed of chains Point 0.000001 0.000001 Decimal degrees North American Datum of 1983 Geodetic Reference System 80 6378137.0 298.257222 au"assessunitnum"cg.pat or au"assessunitnum"cg.dbf Polygon Attribute Table. For each assessment unit, "assessunitnum" is replaced with the assessment unit number in either a file, au"assessunitnum"g.pat, or a table, au"assessunitnum"g.dbf. To keep the size of filenames less than 10 characters, "assessunitnum" does not include the first 2 characters of the region/province number. U.S. Geological Survey REG_NUM Region Number U.S. Geological Survey Energy Resource World Regions 5 North America REG_NAME Region Name U.S. Geological Survey Energy Resource World Regions North America PROVCODE Province Code U.S. Geological Survey Energy Resource Provinces 5037 Southwestern Wyoming PROV_NAME Province Name U.S. Geological Survey Energy Resource Provinces Southwestern Wyoming TPSCODE Total Petroleum System Code U.S. Geological Survey Energy Resource Total Petroleum Systems 503701 Phosphoria 503702 Mowry Composite 503703 Niobrara 503704 Hilliard-Baxter-Mancos 503705 Mesaverde 503706 Mesaverde-Lance-Fort Union Composite 503707 Lewis 503708 Lance-Fort Union Composite 503709 Wasatch-Green River Composite TPSNAME Total Petroleum System Name U.S. Geological Survey Energy Resource Total Petroleum Systems Phosphoria Mowry Composite Niobrara Hilliard-Baxter-Mancos Mesaverde Mesaverde-Lance-Fort Union Composite Lewis Lance-Fort Union Composite Wasatch-Green River Composite ASSESSCODE Assessment Unit Code U.S. Geological Survey Energy Resource Assessment Units 50370101 Sub-Cretaceous Conventional Oil and Gas 50370201 Mowry Composite Total Petroleum System 50370261 Mowry Continuous Gas 50370361 Niobrara Continuous Oil 50370362 Niobrara Continuous Gas 50370401 Hilliard-Baxter-Mancos Conventional Oil and Gas 50370461 Hilliard-Baxter-Mancos Continuous Gas 50370501 Mesaverde Conventional Oil and Gas 50370561 Almond Continuous Gas 50370562 Rock Springs-Ericson Continuous Gas 50370581 Mesaverde Coalbed Gas 50370601 Mesaverde-Lance-Fort Union Conventional Oil and Gas 50370661 Mesaverde-Lance-Fort Union Continuous Gas 50370681 Mesaverde Coalbed Gas 50370682 Fort Union Coalbed Gas 50370701 Lewis Conventional Oil and Gas 50370761 Lewis Continuous Gas 50370801 Lance-Fort Union Conventional Oil and Gas 50370861 Lance-Fort Union Continuous Gas 50370881 Lance Coalbed Gas 50370882 Fort Union Coalbed Gas 50370961 Wasatch-Green River Continuous Gas 50370981 Wasatch-Green River Coalbed Gas ASSESSNAME Assessment Unit Name U.S. Geological Survey Energy Resource Assessment Units Sub-Cretaceous Conventional Oil and Gas Mowry Composite Total Petroleum System Mowry Continuous Gas Niobrara Continuous Oil Niobrara Continuous Gas Hilliard-Baxter-Mancos Conventional Oil and Gas Hilliard-Baxter-Mancos Continuous Gas Mesaverde Conventional Oil and Gas Almond Continuous Gas Rock Springs-Ericson Continuous Gas Mesaverde Coalbed Gas Mesaverde-Lance-Fort Union Conventional Oil and Gas Mesaverde-Lance-Fort Union Continuous Gas Mesaverde Coalbed Gas Fort Union Coalbed Gas Lewis Conventional Oil and Gas Lewis Continuous Gas Lance-Fort Union Conventional Oil and Gas Lance-Fort Union Continuous Gas Lance Coalbed Gas Fort Union Coalbed Gas Wasatch-Green River Continuous Gas Wasatch-Green River Coalbed Gas CELLSYMB Production Status U.S. Geological Survey 1 Cell contains at least one productive oil well, but no productive gas wells (green). 2 Cell contains at least one productive gas well, but no productive oil wells (red). 3 Cell contains at least one productive oil well and at least one productive gas well or one well producing both oil and gas (purple). 4 The type of production of the wells located within the cell is unknown, or the cell contains no producing wells (charcoal). 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Denver CO 80225 USA 1-888-275-8747 sciencebase@usgs.gov Downloadable Data Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. Shapefile https://doi.org/10.5066/P9Q4ZWBQ 20210615 20020730 U.S. Geological Survey - CERSC Data Management Services Project mailing and physical

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Denver CO 80225 USA 1-888-275-8747 datamgt@usgs.gov FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998