Susan G. Buto 2010 vector digital data Reston, VA U.S. Geological Survey http://water.usgs.gov/lookup/getspatial?sir2010_5064_UCRB_ogdb Buto, S.G. Kenney, T.A. Gerner, S.J. 2010 document U.S. Geological Survey Scientific Investigations Report 2010-5064 Reston, VA U.S. Geological Survey http://pubs.usgs.gov/sir/2010/5064/ Federal onshore lands contain an estimated 20 percent of the oil and 25 percent of the undiscovered natural gas resources in the United States (U.S. Bureau of Land Management, 2006) and the BLM has identified the Upper Colorado River Basin (UCRB) as an area with high potential for continued energy development (U.S. Bureau of Land Management, 2002). The UCRB drains portions of Arizona, Colorado, New Mexico, Utah, and Wyoming and is part of the largest river basin in the southwestern United States. A significant volume of known and potential oil and gas reserves lies in the sedimentary basins of the UCRB (Huffman, 1995; U.S. Geological Survey 2002a; U.S. Geological Survey 2002b; U.S. Geological Survey 2002c) and an average of 4,527 wells per year was started on Federal land in the five UCRB states in fiscal years (FY, October 1 to September 30) 2006 and 2007 (U.S. Bureau of Land Management 2008). An average of 2,462 wells per year were drilled between FY 2000 and 2005. 1,284 wells were drilled per year on average in the preceding 10 year period from FY 1990 to 1999. Increased drilling activity has raised concerns that land disturbance from drilling activity may have an affect on surface water quality in the basin. Existing and planned land disturbance data are not regularly or consistently compiled at the state or regional level. Regional-scale compilation, synthesis, and analysis of data defining energy development-related land disturbance and water quality in the UCRB may help to improve understanding of the potential cumulative effects of current and projected energy development on land cover changes in the basin. The location of known oil and gas wells was compiled from state oil and gas databases and merged into a single oil and gas well dataset for the UCRB. The reported status of each well was used to classify the well into two categories: disturbed or not disturbed. Disturbed wells are likely associated with land disturbance. The classified wells were used to estimate the location and extent of energy related land disturbance in the basin. References: Huffman, A.C., Jr., 1995, Paradox Basin Province: U.S. Geological Survey 1995 National oil and gas assessments, accessed April 2009 at http://certmapper.cr.usgs.gov/data/noga95/prov21/text/prov21.pdf U.S. Bureau of Land Management, 2002, Resourceful management of our natural resources, accessed April 2009 at http://www.blm.gov/pgdata/etc/medialib/blm/wo/Communications_Directorate/general_publications/mgmt.Par.6587.File.dat/handout_02.pdf U.S. Bureau of Land Management, 2006, Scientific inventory of onshore federal lands' oil and gas resources and the extent and nature of restrictions or impediments to their development: Energy policy and conservation act phase II inventory, accessed October 2007 at http://www.blm.gov/epca/ U.S. Bureau of Land Management, 2008, Oil and Gas Statistics, accessed February 2009 at http://www.blm.gov/wo/st/en/info/newsroom/Energy_Facts_07/statistics.html U.S. Geological Survey, 2002a, Assessment of undiscovered oil and gas resources of the Uinta-Piceance Province of Colorado and Utah, 2002: U.S. Geological Survey Fact Sheet 026-02, accessed April 2009 at http://pubs.usgs.gov/fs/fs-0026-02/fs-0026-02.pdf U.S. Geological Survey, 2002b, Assessment of undiscovered oil and gas resources of the San Juan Basin Province of New Mexico and Colorado, 2002: U.S. Geological Survey Fact Sheet 147-02, accessed April 2009 at http://pubs.usgs.gov/fs/fs-147-02/FS-147-02.pdf U.S. Geological Survey, 2002c, Assessment of undiscovered oil and gas resources of the Southwestern Wyoming Province, 2002: U.S. Geological Survey Fact Sheet 145-02, accessed April 2009 at http://pubs.usgs.gov/fs/fs-145-02/FS-145-02.pdf This dataset was used as the basis for estimating land disturbance from oil and gas activity in the UCRB. The dataset is a compilation of five state oil and gas datasets from June of 2007. The intended uses of this data set include, but are not limited to, natural resource modeling, mapping, and visualization applications. 2007 ground condition Complete None planned -113.121698 -105.368532 43.735818 35.207085 ISO 19115 topic category inlandWaters geoscientificInformation Global Change Master Directory Natural Gas Petroleum none Arizona Colorado New Mexico Utah Wyoming Upper Colorado River Basin None. Acknowledgement of the U.S. Geological Survey, and the U.S. Department of the Interior Bureaus of Land Management and Reclamation would be appreciated in products derived from these data. Although this Federal Geographic Data Committee (FGDC) compliant metadata file is intended to document the data set in nonproprietary form, this metadata file may include some ArcGIS-specific terminology. These data are not intended to be used as a survey product and are for reference only. U.S. Geological Survey Utah Water Science Center Center Director mailing and physical address

2329 Orton Circle

Salt Lake City UT 84119 USA (801)908-5000 (801)908-5001 Compilation of this data set and the associated metadata was done in cooperation with the U.S. Department of the Interior Bureaus of Land Management and Reclamation. Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.2.6.1500 Kenney, T.A. Gerner, S.J. Buto, S.G. Spangler, L.E. 2009 document U.S. Geological Survey Scientific Investigations Report 2009-5007 Reston, VA U.S. Geological Survey http://pubs.usgs.gov/sir/2009/5007/ Attribute information used directly from or derived from the source database attributes was used as-is with no consistency or completeness checks. All attempts were made to completely verify attribute information that was not directly derived from the source databases. Verification was done by interactive on-screen review. Frequency tests were performed on non-source feature class attributes to check that no features were unlabeled, misspelled, or inconsistent. This dataset consists of point features and contains no direct topological relations. Complete for the contributing drainage area of the Upper Colorado River Basin (hydrologic unit code (HUC) 14) upstream of USGS streamflow-gaging station 09380000, Colorado River at Lees Ferry, Arizona. Errors resulting from source data quality, automation processes, and scale resolution can impact the accuracy of data. These data are compiled from well location data maintained by five separate state organizations. No systematic verification of locational accuracy has been performed on the data. 50 meters No systematic locational accuracy check of these data has been performed. It is assumed that 90% of well locations in this database are within 50 meters of the actual well location. Arizona Geological Survey Unpublished Material spreadsheet Provided upon request to Arizona Geological Survey 100000 spreadsheet 082007 ground condition azogdb Spatial and Attribute information Colorado Oil and Gas Commission Unknown vector digital data http://cogcc.state.co.us/ 100000 online 052007 ground condition coogdb Spatial and Attribute information New Mexico Institute of Mining and Technology Petroleum Recovery and Research Center Unknown Access database http://octane.nmt.edu/gotech/Main.aspx 100000 online 052007 ground condition nmogdb Spatial and Attribute information Utah Department of Natural Resources Division of Oil, Gas, and Mining Unknown tabular digital data http://oilgas.ogm.utah.gov/ 100000 online 062007 ground condition utogdb Spatial and Attribute information Wyoming Oil and Gas Conservation Commission Unknown vector digital data http://wogcc.state.wy.us/ 100000 online 062007 ground condition wyogdb Spatial and Attribute information Oil and gas well data were acquired from the source databases. The contents of each state database were evaluated and used to design the ucogdb data set format. Tabular data from the state databases was imported to Microsoft Access and the attribute information was modified to conform to the ucogdb format. The tabular data was converted to a point feature class for each state using latitude, longitude, and datum information in the source data. The state feature classes were projected to a common coordinate system and merged to a single database for the 5 Upper Colorado River Basin states. azogdb coogdb nmogdb utogdb wyogdb 2007-2008 ucrbogdb_v1 The locations of 2136 New Mexico wells with no latitude and longitude information in nmogdb were estimated using the BLM township geocoder (http://www.geocommunicator.gov/GeoComm/lsis_home/townshipdecoder/index.shtm). The tabular information for these wells was converted to a point feature class and merged with ucogdb_v1. The resulting dataset was clipped to the boundary of the Upper Colorado River Basin. ucrbogdb_v1 nmogdb 2007 ucrbogdb_v2 Wells in ucogdb_v2 were assigned common status codes and disturbance classes based on the state well status codes, date of drilling, and assumptions based on visual examination of the well database against 2005-2007 National Aerial Imagery Program (NAIP) county mosaic images. Details are available in the larger work associated with this dataset. ucrbogdb_v2 2007-2008 SIR2010_5064_UCRB_OGDB_x Metadata structured and validated using the U.S. Geological Survey Geospatial Metadata Validation Service, accessed June 24, 2009 at URL http://geo-nsdi.er.usgs.gov/validation/. 20090624 Vector Entity point 89282 Albers Conical Equal Area 29.500000 45.500000 -96.000000 23.000000 0.000000 0.000000 coordinate pair 0.000125 0.000125 meters North American Datum of 1983 Geodetic Reference System 80 6378137.000000 298.257222 SIR2010_5064_UCRB_OGDB_x Point feature class ESRI OBJECTID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. SHAPE Feature geometry. ESRI Coordinates defining the features. api_state_code American Petroleum Institute State Code American Petroleum Institute 02 Arizona American Petroleum Institute 05 Colorado American Petroleum Institute 30 New Mexico American Petroleum Institute 43 Utah American Petroleum Institute 49 Wyoming American Petroleum Institute api_county_code American Petroleum Institute County Code American Petroleum Institute API County Codes. Codes and definitions are provided as a domain on the geodatabase. American Petroleum Institute api_borehole_no American Petroleum Institute Borehole Number American Petroleum Institute Unique well number American Petroleum Institute API_number American Petroleum Institute well number American Petroleum Institute Unique well number consisting of API state, county, and borehole numbers American Petroleum Institute well_status Status of the well state databases Well status codes. Codes and definitions are provided as a domain on the geodatabase. Regulatory agency responsible for well information status_date Status date state databases Date spud_date Date drilling commenced state databases Date Latitude Latitude of the well location state databases 35.60 43.40 Degrees Longitude Longitude of well location state databases -111.88 -105.93 Degrees lat_long_datum Datum state databases NAD27 North American Datum of 1927 state databases NAD83 North American Datum of 1983 state databases spud_year Year drilling commenced state databases Year status_year Year status code was assigned to well state databases Year common_status_code Common status code user-defined AD Abandoned - disturbed user-defined AND Abandoned - not disturbed user-defined A Active user-defined I Inactive user-defined disturbed Assumed disturbance status of the well user-defined Yes Well is classified disturbed. Classification is based on state-reported well status codes and dates. Classification indicates that the well is likely associated with land-surface disturbance. user-defined No Classification is based on state-reported well status codes and dates. Classification indicates that the well is likely not associated with land-surface disturbance. user-defined location_source Source of location information used to site the well user-defined Estimated from TRS Well location was estimated from township, range, section information user-defined State DB Well loction was from latitude and longitude information in state database user-defined U.S. Geological Survey Ask USGS -- Water Webserver Team mailing address

445 National Center

Reston VA 20192 1-888-275-8747 (1-888-ASK-USGS) http://water.usgs.gov/user_feedback_form.html Although these data have been used by the U.S. Geological Survey, U.S. Department of the Interior, no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of these data, software, or related materials. The use of firm, trade, or brand names in this report is for identification purposes only and does not constitute endorsement by the U.S. Geological Survey. The names mentioned in this document may be trademarks or registered trademarks of their respective trademark owners. WinZipped personal geodatabase ArcGIS 9.2 WinZip 7441 KB http://water.usgs.gov/GIS/dsdl/SIR2010_5064_UCRB_OGDBmdb.zip WinZipped shapefile NA Winzip 3,666 KB http://water.usgs.gov/GIS/dsdl/SIR2010_5064_UCRB_OGDBshapefile.zip None. This data set is provided by USGS as a public service. 2007 20090511 U.S. Geological Survey Ask USGS -- Water Webserver Team mailing address

445 National Center

Reston VA 20192 1-888-275-8747 (1-888-ASK-USGS) http://answers.usgs.gov/cgi-bin/gsanswers?pemail=h2oteam&subject=GIS+Dataset+sir2010_5064_UCRB FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998