| 213112 |
Operating oil and gas field properties on a contract or fee basis--are classified in Industry Group 2111, Oil and Gas Extraction |
| 213112 |
Performing geophysical surveying and mapping services for oil and gas on a contract or fee basis--are classified in Industry 541360, Geophysical Surveying and Mapping Services |
| 213112 |
Oil and gas pipeline and related structures construction and repair--are classified in Industry 237120, Oil and Gas Pipeline and Related Structures Construction |
| 213112 |
Inspecting pipelines (i.e., visual)--are classified in Industry 541990, All Other Professional, Scientific, and Technical Services |
| 213112 |
Site preparation and related construction activities on a contract or fee basis--are classified in Industry 238910, Site Preparation Contractors |
| 213112 |
Mining machinery and equipment repair and maintenance--are classified in Industry 811310, Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance |
| 213112 |
Providing transportation activities on a contract or fee basis--are classified in Sector 48-49, Transportation and Warehousing, based on the primary activity |
| 213112 |
Providing landman services on a contract or fee basis--are classified in Industry 531390, Other Activities Related to Real Estate. |
| 213113 |
Performing geophysical surveying and mapping services for coal on a contract or fee basis--are classified in Industry 541360, Geophysical Surveying and Mapping Services |
| 213113 |
Operating coal mines or quarries on a contract or fee basis--are classified in Industry 21211, Coal Mining, based on the type of mine |