• Gulf of Mexico Region NAD27 Supplemental Official Protraction Diagrams and Lease Maps Images

    Metadata Updated: March 17, 2021

    This data set contains Supplemental Official OCS Block Diagram (SOBD) images in Adobe pdf format for areas within the BOEM Gulf of Mexico Region. Each SOBD describes a single block within an Official Protraction Diagram (OPD) or Leasing Map (LM) and shows the lines (Submerged Lands Act, Limit of '8(g) Zone', maritime boundaries and/or marine sanctuaries) which occur within that block and divide it into different areas. The SOBD contains additional coordinates and area calculations for an individual block. These data are scanned images of the official paper SOBD's produced by the BOEM. Note that not all OPDs have boundaries cutting through them, so not all OPDs will have SOBDs generated for them. All current leasing activities will be done using the most current SOBDs. Historical (outdated) SOBDs can be obtained by contacting the Geospatial Services Division. Also see the metadata for each of the individual GIS files used to create these SOBDs. The Official Protraction Diagrams (OPDs) and Supplemental Official Block Diagrams (SOBDs), serve as the legal definition for BOEM offshore boundary coordinates and area descriptions. Further information on the historic development of OPD's can be found in OCS Report BOEM 99-0006: Boundary Development on the Outer Continental Shelf: https://www.boem.gov/uploadedFiles/BOEM/Oil_and_Gas_Energy_Program/Mapping_and_Data/99-0006.pdf

    Access & Use Information

    License: No license information was provided.

    Downloads & Resources

    Dates

    Metadata Date February 1, 2021
    Metadata Created Date March 17, 2021
    Metadata Updated Date March 17, 2021
    Reference Date(s) January 1, 1999 (publication)
    Frequency Of Update notPlanned

    Graphic Preview

    Image depicting the extent and shapes of the leasing maps and protraction diagrams in the US Gulf of Mexico

    Additional Metadata

    Resource Type Dataset
    Metadata Date February 1, 2021
    Metadata Created Date March 17, 2021
    Metadata Updated Date March 17, 2021
    Reference Date(s) January 1, 1999 (publication)
    Responsible Party Bureau of Ocean Energy Management (Point of Contact)
    Contact Email
    Guid
    Access Constraints Use Constraints: None. Please check sources, scale, accuracy, currentness and other available information. Please confirm that you are using the most recent copy of both data and metadata. Acknowledgement of the BOEM would be appreciated., Access Constraints: None
    Bbox East Long -81.170306
    Bbox North Lat 30.246103
    Bbox South Lat 23.822778
    Bbox West Long -97.211214
    Coupled Resource
    Frequency Of Update notPlanned
    Graphic Preview Description Image depicting the extent and shapes of the leasing maps and protraction diagrams in the US Gulf of Mexico
    Graphic Preview File http://www.data.boem.gov/images_opt/graphics/gis/GOMR_Protrac.png
    Harvest Object Id 74be7c0c-763f-48b3-9d2c-892d00c92a5b
    Harvest Source Id 7cb2c0ad-d734-4a47-94bd-6cc6b06fd25f
    Harvest Source Title BOEM-Geospatial
    Licence none
    Metadata Language eng; USA
    Metadata Type geospatial
    Progress completed
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 1999-01-01
    Temporal Extent End 2014-01-01

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