What this covers (20 activity descriptions)
  • Derrick erection in situ
  • Directional drilling services
  • Diving services incidental to oil and gas exploration
  • Downhole-fishing services
  • Downhole-milling services
  • Draining and pumping services incidental to oil and gas extraction
  • Drilling contractor for offshore oil or gas well
  • Drilling services to oil and gas extraction wells
  • Floating drilling rig operation for petroleum or natural gas exploration or production
  • Fluid-displacement services
  • Fracture/stimulation services
  • Gas extraction service activities
  • Gravel packing services
  • Horizontal drilling services
  • Hot-tap operation services
  • Hyperbaric welding services
  • Liquefaction and regasification of natural gas for transport
  • Mud logging services
  • Oil and gas exploration in connection with oil and gas extraction
  • Oil and gas extraction service activities provided on a fee or contract basis