Oil and Gas Exploration and Production in the State of Illinois Shown as Quarter-Mile Cells

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Frequently-anticipated questions:


What does this data set describe?

Title:
Oil and Gas Exploration and Production in the State of Illinois Shown as Quarter-Mile Cells
Abstract:
A cells polygon feature class was created by the U. S. Geological Survey (USGS) to illustrate the degree of exploration, type of production, and distribution of production in the State of Illinois. 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, or the type of production of the wells located within the cell is unknown or dry. Data were retrieved from the Illinois State Geological Survey (ISGS) oil and gas wells database. Cells were developed as a graphic solution to overcome the problem of displaying proprietary well data. No proprietary data are displayed or included in the cell maps. The data are current as of 2006.
  1. How should this data set be cited?

    Biewick, Laura R.H., 2008, Oil and Gas Exploration and Production in the State of Illinois Shown as Quarter-Mile Cells: U. S. Geological Survey, Denver, Colorado.

    Online Links:

    This is part of the following larger work.

    Biewick, Laura R.H., 2008, Areas of Historical Oil and Gas Exploration and Production in the United States: U.S. Geological Survey Digital Data Series DDS-069-Q, U.S. Geological Survey, Denver, Colorado.

    Online Links:

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -91.446530
    East_Bounding_Coordinate: -87.494399
    North_Bounding_Coordinate: 42.510489
    South_Bounding_Coordinate: 37.040746

  3. What does it look like?

    <http://certmapper.cr.usgs.gov/data/noga00/natl/graphic/ilcells06g.jpg> (JPEG)
    Thumbnail view of Illinois State oil and gas cells

  4. Does the data set describe conditions during a particular time period?

    Calendar_Date: 2006
    Currentness_Reference: data retrieval date

  5. What is the general form of this data set?

    Geospatial_Data_Presentation_Form: Downloadable GIS Data

  6. How does the data set represent geographic features?

    1. How are geographic features stored in the data set?

      This is a Vector data set. It contains the following vector data types (SDTS terminology):

      • G-polygon

    2. What coordinate system is used to represent geographic features?

      Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.000001. Longitudes are given to the nearest 0.000001. Latitude and longitude values are specified in Decimal degrees.

      The horizontal datum used is North American Datum of 1983.
      The ellipsoid used is Geodetic Reference System 80.
      The semi-major axis of the ellipsoid used is 6378137.000000.
      The flattening of the ellipsoid used is 1/298.257222.

  7. How does the data set describe geographic features?

    ilcells06g
    Polygon attribute table (Source: U.S. Geological Survey)

    CC83XCOORD
    Center-cell X-coordinate (Source: U.S. Geological Survey)

    Range of values
    Minimum:-91.446530
    Maximum:-87.494399
    Units:decimal degrees

    CC83YCOORD
    Center-cell Y-coordinate (Source: U.S. Geological Survey)

    Range of values
    Minimum:37.040746
    Maximum:42.510489
    Units:decimal degrees

    CELLSYMB
    Production Status (Source: U.S. Geological Survey)

    ValueDefinition
    1Cell contains at least one productive oil well, but no productive gas wells (green).
    2Cell contains at least one productive gas well, but no productive oil wells (red).
    3Cell contains at least one productive oil well and at least one productive gas well or one well producing both oil and gas (gold).
    4The type of production of the wells located within the cell is unknown, or the wells within the cell had no production (charcoal).


Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)

  2. Who also contributed to the data set?

    To aggregate well data into quarter-mile cells, oil and gas well data were run through an Arc Macro Language (AML) program written by L.R.H. Biewick, S. Weiler, and C.C. Skinner.

  3. To whom should users address questions about the data?

    U.S. Geological Survey, Central Energy Resources Team
    c/o Laura R.H. Biewick
    Geologist / GIS Coordinator
    U.S. Geological Survey, Box 25046, MS 939, Denver Federal Center
    Denver, Colorado 80225
    USA

    303-236-7773 (voice)
    datamgt@usgs.gov


Why was the data set created?

This Geographic Information System (GIS) dataset was created to display present and past oil and gas production in the United States, as well as the location and intensity of exploratory drilling outside producing areas. This map compilation is an updated version of the USGS map that was published by Mast and others (1998). This product differs from other oil and gas maps of the United States in the following ways: (1) the oil and gas data sources are current as of 2004 through 2006, (2) base cartographic reference data are included, using the USGS National Map and a World Shaded Relief map service from the ESRI geography network, (3) an internet map service is available online, (4) Alaska oil and gas data are included. To construct this map, digital data were used from more than 3 million wells in IHS Inc.'s PI/Dwights PLUS Well Data on CD-ROM, current through 10/1/2005. In some areas, the PI/Dwights data tend not to be complete, particularly for pre-1920 production. IHS data was supplemented with state wells databases for Indiana, Pennsylvania, Kentucky, Illinois, and Ohio, (current as of 2004 to 2006).


How was the data set created?

  1. From what previous works were the data drawn?

    ISGS (source 1 of 1)
    Illinois State Geological Survey (ISGS), 2006, Illinois State Oil and Gas Wells Database.

    Online Links:

    Type_of_Source_Media: comma-delimited file
    Source_Contribution:
    There are 192,310 records of all types of Oil & Gas wells in this file (isgshead.txt).
    This file has the following items:
    API number LAM_X LAM_Y Latitude Longitude Status

  2. How were the data generated, processed, and modified?

    Date: Mar-2006 (process 1 of 1)
    The Illinois State Geological Survey (ISGS) created a comma-delimited file that they made available for download at their ftp site (03/16/06). There are 192,310 records of oil and gas wells in this file (isgshead.txt). 3/20/06 the file was exported from Microsoft Excel to a .csv file that was imported into ArcMap and saved as a shapefile. The shapefile was converted to a coverage and run through an Arc Macro Language (AML) program written by L.R.H. Biewick, S. Weiler, and C.C. Skinner. This program aggregated and converted the 2006 Illinois oil and gas well data into quarter-mile cells and latitude-longitude points that represent the center-points of the quarter-mile cells. The Illinois cells were then assigned an attribute based on the type of production of the wells located within the cell.

  3. What similar or related data should the user be aware of?


How reliable are the data; what problems remain in the data set?

  1. How well have the observations been checked?

    The cell locations and cell attributes were visually compared to the hard-copy map: Mast, R.F., Root, D.H., Williams, L.P., Beeman, W.R., and Barnett, D.L., 1998, Areas of historical oil and gas exploration and production in the conterminous United States: U.S. Geological Survey Oil and Gas Investigations Map I-2582, 1 sheet; <http://energy.cr.usgs.gov/oilgas/noga/oilgasmap.htm> and <http://pubs.usgs.gov/of/1995/ofr-95-0075-c/>

  2. How accurate are the geographic locations?

    A visual comparison was made using a sampling of cell locations and cell attributes with well locations and attributes. The horizontal positional accuracy of the Illinois oil and gas well locations is based on well data supplied to the Illinois State Geological Survey (ISGS) and is not field verified. The ISGS does not guarantee the validity, accuracy, and completeness of this data.

  3. How accurate are the heights or depths?

    Not applicable.

  4. Where are the gaps in the data? What is missing?

    The cells were defined using the 2006 well data in the Illinois State Geological Survey (ISGS) oil and gas wells GIS data set. The information is based on well data supplied to the Illinois State Geological Survey (ISGS) and is not field verified. The ISGS does not guarantee the validity, accuracy, and completeness of this data.

  5. How consistent are the relationships among the observations, including topology?

    The accuracy of the cells, as created by the Arc Macro Language (AML) program of L.R.H. Biewick, S. Weiler and C.C. Skinner, depends upon the accuracy of the locatable oil and gas wells GIS data layer from the Illinois State Geological Survey. For the USGS map compilation showing Areas of Historical Oil and Gas Exploration and Production in the United States, the assumption was made that the data from the Illinois State Geological Survey were of sufficient accuracy for such a national-scale analysis.


How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?

Access_Constraints: None
Use_Constraints:
This database should not be distributed in whole or in part without acknowledgement of the Illinois State Geological Survey and the U.S. Geological Survey.

  1. Who distributes the data set? (Distributor 1 of 1)

    U.S. Geological Survey
    Information Services
    Denver, Colorado 80225
    USA

    1-888-ASK-USGS (voice)
    303-202-4693 (FAX)
    ask@usgs.gov

    Contact_Instructions:
    The dataset is available at the Energy Program website - <http://energy.usgs.gov/>
  2. What's the catalog number I need to order this data set?

    Downloadable Data

  3. What legal disclaimers am I supposed to read?

    Although these data have been processed successfully on a computer system at the U.S. Geological Survey, 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. The U.S. Geological survey shall not be held liable for improper or incorrect use of the data described and/or contained herein. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although this information product, for the most part, is in the public domain, it also contains copyrighted materials as noted in the text. Permission to reproduce copyrighted items for other than personal use must be secured from the copyright owner.

  4. How can I download or order the data?

  5. Is there some other way to get the data?

    Send email to datamgt@usgs.gov or call the USGS Central Energy Team main office at 303-236-1644.

  6. What hardware or software do I need in order to use the data set?

    Requires software that reads GIS data.


Who wrote the metadata?

Dates:
Last modified: 19-Dec-2007
Last Reviewed: 17-Dec-2007
Metadata author:
U.S. Geological Survey, Central Energy Resources Team
c/o Laura R.H. Biewick
Geologist \ GIS Coordinator
U.S. Geological Survey, Box 25046, MS 939, Denver Federal Center
Denver, Colorado 80225
USA

303-236-7773 (voice)
datamgt@usgs.gov

Contact_Instructions:
For inquiries regarding this document, please include the metadata contact person's name, dataset name, and publication series and number.
Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)
Metadata extensions used:


Generated by mp version 2.9.6 on Fri Feb 29 12:34:34 2008