| title | nationalIndustry | 
|---|---|
Crude petroleum from oil sand  | Crude Petroleum Extraction  | 
Crude petroleum from oil shale  | Crude Petroleum Extraction  | 
Crude petroleum lease condensate production  | Crude Petroleum Extraction  | 
Crude petroleum production  | Crude Petroleum Extraction  | 
Kerogen processing  | Crude Petroleum Extraction  | 
Offshore crude petroleum production  | Crude Petroleum Extraction  | 
Oil field development for own account  | Crude Petroleum Extraction  | 
Oil field exploration for own account  | Crude Petroleum Extraction  | 
Oil shale mining and/or beneficiating  | Crude Petroleum Extraction  | 
Operating crude petroleum field gathering lines, except on a contract basis  | Crude Petroleum Extraction  | 
Petroleum, crude, production (i.e., extraction)  | Crude Petroleum Extraction  | 
Shale, oil, mining and/or beneficiating  | Crude Petroleum Extraction  | 
Stripper oil well production  | Crude Petroleum Extraction  | 
Tar sands mining  | Crude Petroleum Extraction  |