| 2007 NAICS | 2012 NAICS | 2017 NAICS | Corresponding Index Entries | |||
| 211112 | 211112 | 211130 | Butane, natural, mining | |||
| 211112 | 211112 | 211130 | Casing-head butane and propane production | |||
| 211111 | 211111 | 211130 | Coal gasification at mine site | |||
| 211111 | 211111 | 211130 | Coal liquefaction at mine site | |||
| 211111 | 211111 | 211130 | Coal pyrolysis | |||
| 211112 | 211112 | 211130 | Condensate, cycle, natural gas production | |||
| 211112 | 211112 | 211130 | Cycle condensate production | |||
| 211112 | 211112 | 211130 | Ethane recovered from oil and gas field gases | |||
| 211112 | 211112 | 211130 | Fractionating natural gas liquids | |||
| 211111 | 211111 | 211130 | Gas field development for own account | |||
| 211111 | 211111 | 211130 | Gas field exploration for own account | |||
| 211112 | 211112 | 211130 | Gas, natural liquefied petroleum, extraction | |||
| 211111 | 211111 | 211130 | Gas, natural, extraction | |||
| 211112 | 211112 | 211130 | Gas, natural, liquids, extraction | |||
| 211112 | 211112 | 211130 | Gas, residue, extraction | |||
| 211112 | 211112 | 211130 | Gases, petroleum, liquefied, extraction | |||
| 211112 | 211112 | 211130 | Gasoline, natural, production | |||
| 211112 | 211112 | 211130 | Isobutane recovered from oil and gas field gases | |||
| 211112 | 211112 | 211130 | Isopentane recovered from oil and gas field gases | |||
| 211112 | 211112 | 211130 | Liquefied petroleum gases (LPG), natural | |||
| 211112 | 211112 | 211130 | Liquid hydrocarbons recovered from oil and gas field gases | |||
| 211112 | 211112 | 211130 | Liquids, natural gas (e.g., ethane, isobutane, natural gasoline, propane) recovered from oil and gas field gases | |||
| 211111 | 211111 | 211130 | Natural gas liquid lease condensate production | |||
| 211112 | 211112 | 211130 | Natural gas liquids (e.g., ethane, isobutane, natural gasoline, propane) recovered from oil and gas field gases | |||
| 211111 | 211111 | 211130 | Natural gas production | |||
| 211111 | 211111 | 211130 | Natural gas, offshore production | |||
| 211112 | 211112 | 211130 | Natural gasoline recovered from oil and gas field gases | |||
| 211111 | 211111 | 211130 | Offshore natural gas production | |||
| 211112 | 211112 | 211130 | Oil line drip, natural gas liquid | |||
| 211112 | 211112 | 211130 | Operating natural gas liquid field gathering lines, except on a contract basis | |||
| 211112 | 211112 | 211130 | Petroleum gases, liquefied, recovering from oil and gas field gases | |||
| 211112 | 211112 | 211130 | Propane recovered from oil and gas field gases | |||
| 211112 | 211112 | 211130 | Residue gas production | |||
| 211111 | 211111 | 211130 | Stripper gas well production | |||
| 211112 | 211112 | 211130 | Sulfur recovered from natural gas |