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BOEM OCS Lease Blocks
  • Added 01 Sep 2016

Outer Continental Shelf (OCS) lease blocks serve as the legal definition for BOEM offshore boundary coordinates used to define small geographic areas within an Official Protraction Diagram (OPD) for leasing and administrative purposes. OCS blocks relate back to individual Official Protraction Diagrams and are not uniquely numbered. Only the most recently published paper or pdf versions of the OPDs or LMs or SOBDs should be used for official or legal purposes. The pdf maps can be found by going to the following link and selecting the appropriate region of interest within the OPD/SOBD table.

This layer is a component of BOEMRE Layers.



Copyright Copyright may apply. Please check the source for more information.
RegionsCalifornia, Oregon
MetadataDublin Core

Technical Details

Layer ID 15445
Data type Vector polygon
Feature count 44628
Attributes SDETABS_BLOCKS_SDE_LEN, SDETABS_BLOCKS_SDE_AREA, Protraction_Number, Effective_Date, OCS_Block_Number
Services Vector Query API


Last updated 1 year ago
Last checked 3 weeks ago
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