2007 Economic Census
Selected data for Mining (sector 21) present statistics for offshore areas.
These are treated as "pseudo states" and are:
- All Offshore Areas (State code 80)
- Atlantic Offshore Area (State code 81)
- Gulf of Mexico Offshore Area (State code 82)
- Pacific Offshore Area (State code 83)
Source: U.S. Census Bureau | 2007 Economic Census | Last Revised: November 13, 2012