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13 OIL & GAS EXTRACTION |
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131 Crude Petroleum & Natural Gas |
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1311-01 Oil Producers |
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1311-02 Gas Boosters |
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1311-03 Oil Companies |
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1311-04 Oil & Gas-Production |
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1311-05 Oil Operators |
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132 Natural Gas Liquids |
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1321-98 Natural Gas Liquids |
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138 Oil & Gas Field Services |
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1381-01 Contractors-Oil Field |
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1381-02 Oil Well Drilling |
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1381-03 Gas Well Drilling |
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1381-04 Oil Well Directional Drilling |
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1381-05 Drilling-Diamond Core |
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1381-98 Drilling-Oil & Gas Wells |
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1382-01 Seismograph Service |
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1382-02 Oil Reports |
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1382-03 Oil & Gas-Exploration & Development |
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1382-04 Oil & Gas Consultant |
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1382-05 Explorers-Natural Resources |
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1382-06 Seismic Data Brokers |
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1382-07 Drilling Consultants |
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1389-01 Oil Field Equipment-Repairing |
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1389-02 Mud Jacking Contractors |
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1389-03 Oil Field Specialties |
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1389-04 Oil Inspectors |
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1389-05 Oil Field Service |
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1389-06 Oil Well Cementing |
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1389-07 Oil Well Casing-Pulling |
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1389-08 Oil Well Drilling Mud & Additives |
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1389-09 Oil Well Surveyors |
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1389-10 Oil Well Logging & Perforating |
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1389-11 Oil Well Testing |
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1389-12 Oil Well Services |
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1389-13 Pipe Inspection |
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1389-14 Riggers |
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1389-15 Hot Shot Service |
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1389-16 Wireline Service |
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1389-17 Oil Well Chemical Service |
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1389-19 Roustabouts |
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1389-20 Gas Well Cleaners |
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1389-21 Gas Well Plugging |
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1389-22 Oil Extraction-Downhole |
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1389-23 Oil Well Wire Line Service |
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1389-24 Oil Field Maintenance |
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1389-99 Oil & Gas-Field Services Nec |
