Oil and Gas Exploration and Production in the State of Pennsylvania 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 Pennsylvania 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 Pennsylvania. 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 Pennsylvania Internet Record Imaging System (PA*IRIS). 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 Pennsylvania 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: -80.527886
    East_Bounding_Coordinate: -74.701540
    North_Bounding_Coordinate: 42.275534
    South_Bounding_Coordinate: 39.713894

  3. What does it look like?

    <http://certmapper.cr.usgs.gov/data/noga00/natl/graphic/pacells06g.jpg> (JPEG)
    Thumbnail view of Pennsylvania State oil and gas cells

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

    Beginning_Date:
    Ending_Date: 2006
    Currentness_Reference: The data were retrieved in 2006

  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?

    pacells06g
    Polygon attribute table (Source: U.S. Geological Survey)

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

    Range of values
    Minimum:-80.527886
    Maximum:-74.701540
    Units:decimal degrees

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

    Range of values
    Minimum:39.713894
    Maximum:42.275534
    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?

    PA*IRIS (source 1 of 1)
    Survey, Pennsylvania Geological , Unpublished Material, Pennsylvania Internet Record Imaging System (PA*IRIS).

    Online Links:

    Type_of_Source_Media: online
    Source_Contribution:
    The Pennsylvania Internet Record Imaging System (PA*IRIS) was used to download well data by county.

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

    Date: 02-Feb-2006 (process 1 of 3)
    The Pennsylvania Internet Record Imaging System (PA*IRIS) was used to download well data by county. Data are exported as tab-delimited text files that are then brought into Access to create a statewide database for PA wells.

    Date: 10-Feb-2006 (process 2 of 3)
    The statewide database was brought into ArcMap as an event theme and then saved as a point feature class in a personal geodatabase. The event theme was saved to a shapefile (pawells06.shp) and then converted to a coverage (pawells), in order to run the AML that creates production information by quarter-mile cells.

    Date: 06-Mar-2006 (process 3 of 3)
    The Pennsylvania 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. This program aggregated and converted the well data into quarter-mile cells and latitude-longitude points that represent the center-points of the quarter-mile cells. The 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.

  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 2006 well data in the Pennsylvania Internet Record Imaging System (PA*IRIS). No proprietary data are displayed or included in the cell maps.

  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 data from the Pennsylvania 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 Pennsylvania Internet Record Imaging System (PA*IRIS) 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: There are no constraints on the access of this data layer.
Use_Constraints:
There are no use constraints on this data layer. The source well data used to create these cells were compiled by the Pennsylvania Geological Survey. If these data are used in the compilation of other data sets or maps for distribution or publication, both the U.S. Geological Survey and the Pennsylvania Geological Survey sources must be referenced.
Neither the U.S. Geological Survey, the Pennsylvania Geological Survey, nor any agency thereof, nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of this product. Any use thereof for a purpose other than for which said information or product was intended shall be solely at the risk of the user.

  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 12:35:34 2008