| Naics index | Naics index description |
|---|---|
| 211130 | Natural gas production |
| 211130 | Natural gas, offshore production |
| 211130 | Natural gasoline recovered from oil and gas field gases |
| 211130 | Offshore natural gas production |
| 211130 | Oil line drip, natural gas liquid |
| 211130 | Operating natural gas liquid field gathering lines, except on a contract basis |
| 211130 | Petroleum gases, liquefied, recovering from oil and gas field gases |
| 211130 | Propane recovered from oil and gas field gases |
| 211130 | Residue gas production |
| 211130 | Stripper gas well production |