Archived - Standard Industrial Classification - Establishments (SIC-E) 1980
- D - Mining (including Milling), Quarrying and Oil Well Industries
- 09 - Service Industries Incidental to Mineral Extraction
- 091 - Service Industries Incidental to Crude Petroleum andNatural Gas
- 0911 - Contract Drilling, Oil and Gas Industry
- 0919 - Other Service Industries Incidental to CrudePetroleum and Natural Gas
- 092 - Service Industries Incidental to Mining
- 0921 - Contract Drilling Industry (Except Oil and Gas)
- 0929 - Other Service Industries Incidental to Mining
- Date modified: