Industry: 1311—Crude Petroleum and Natural Gas
Establishments primarily engaged in operating oil and gas field properties. Such activities may include exploration for crude petroleum and natural gas; drilling, completing, and equipping wells; operation of separators, emulsion breakers, desilting equipment, and field gathering lines for crude petroleum; and all other activities in the preparation of oil and gas up to the point of shipment from the producing property. This industry includes the production of oil through the mining and extraction of oil from oil shale and oil sands and the production of gas and hydrocarbon liquids through gasification, liquid faction, and pyrolysis of coal at the mine site. Also included are establishments which have complete responsibility for operating oil and gas wells for others on a contract or fee basis. Establishments primarily engaged in performing oil field services for operators on a contract or fee basis are classified in Industry Group 138.

Coal gasification at the mine siteKerogen processing
Coal liquefaction at the mine siteNatural gas production
Coal pyrolysis at the mine siteOil sand mining
Crude oil productionOil shale mining
Crude petroleum productionTar sands mining
Codes Titles Number of US Businesses
1311Crude Petroleum and Natural Gas5,112
131100Crude petroleum and natural gas1,625
13110000Crude petroleum and natural gas1,625
131101Crude petroleum and natural gas production3,379
13110100Crude petroleum and natural gas production534
13110101Crude petroleum production2,531
13110102Natural gas production314
131102Gas and hydrocarbon liquefaction from coal52
13110200Gas and hydrocarbon liquefaction from coal33
13110201Coal gasification13
13110202Coal liquefaction4
13110203Coal pyrolysis2
131103Sand and shale oil mining56
13110300Sand and shale oil mining17
13110301Oil sand mining25
13110302Oil shale mining13
13110303Tar sands mining1