Structure of SIC Code 13 - Oil and Gas Extraction

1311-01 - Oil & Gas Producers 1311-02 - Gas Boosters 1311-03 - Oil Companies 1311-04 - Oil & Gas-Production 1311-05 - Oil Operators 1311-06 - Oil Crude 1311-07 - Petroleum Contractors 1311-08 - Petrochemical Contractors

1321-98 - Natural Gas Liquids

1381-01 - Contractors-Oil Field 1381-02 - Oil Well Drilling 1381-03 - Gas Well Drilling 1381-04 - Oil Well Directional Drilling 1381-05 - Drilling-Diamond Core 1381-07 - Drilling Companies 1381-98 - Drilling-Oil & Gas Wells

1382-01 - Seismograph Service 1382-02 - Oil Reports 1382-03 - Oil & Gas Exploration & Development 1382-04 - Oil & Gas Consultant 1382-05 - Explorers-Natural Resources 1382-06 - Seismic Data Brokers 1382-08 - Oil & Gas Services 1382-09 - Exploration Consultants 1382-10 - Exploration-Drilling Contractors 1382-13 - Lubrication Consultants

1389-01 - Oil Field Equipment Repairing 1389-02 - Mud Jacking Contractors 1389-03 - Oil Field Specialties 1389-04 - Oil Inspectors 1389-05 - Oil Field Service 1389-06 - Oil Well Cementing 1389-07 - Oil Well Casing-Pulling 1389-08 - Oil Well Drilling Mud & Additives 1389-09 - Oil Well Surveyors 1389-10 - Oil Well Logging & Perforating 1389-11 - Oil Well Testing 1389-12 - Oil Well Services 1389-13 - Pipe Inspection 1389-14 - Riggers 1389-15 - Hot Shot Service 1389-16 - Wireline Service 1389-18 - Offshore Platforms/Oil 1389-19 - Roustabouts 1389-20 - Gas Well Servicing 1389-21 - Oil & Gas Well Plugging 1389-22 - Oil Extraction-Downhole 1389-23 - Oil Well Wire Line Service 1389-24 - Oil Field Maintenance 1389-25 - Oil Field Compressor Service 1389-26 - Oil Field Solids Control 1389-27 - Well Maintenance Service 1389-28 - Oil & Gas Field Training 1389-30 - Oil Well Pumping Contractors 1389-31 - Oil Field Welding 1389-32 - Pipe Testing 1389-33 - Oil Tanks Repairing & Removal 1389-34 - Oil & Gas Fleet Washing 1389-99 - Oil & Gas-Field Services NEC