Thunder Horse Oil Field

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Summary Information

  • Operator: BP
  • Country: USA
  • Location: Mississippi Canyon Blocks 778, 821 & 822, 125 miles south-east of New Orleans, Louisiana
  • Production start: 2008
  • Partners: BP - 75%, Exxon - 25%
  • Type: Oil / Gas
  • Estimated Reserves:
  • Production Volume:


  • The Thunder Horse platform is located about 150 miles southeast of New Orleans, La. in Mississippi Canyon at a water depth of 6,050 feet (1,844 meters) and is the largest semi-submersible facility in the world at 130,000 tonnes displacement. It has a deck load capacity of 40,000 tonnes and is designed to process and export up to 250,000 barrels of oil and 200 million cubic feet of natural gas per day.
  • In 2013, it was the 7th largest field in the USA
  • Subsea wells are connected to production manifolds on the seafloor and then to the PDQ via riser flowlines.
  • Oil and gas will be transported to existing shelf and onshore pipelines via the Proteus and Endymion oil pipeline systems and the Okeanos gas pipeline system, which are part of the Mardi Gras Offshore Oil And Gas Pipeline System
  • The field was originally called Crazy Horse

Thunder Horse South Expansion Project

  • New drilling centres are being added to the south of the development


  • DSME: Semi-submersible hull construction
  • Wood Group Mustang: Topsides engineering and design
  • McDermott: Topsides construction
  • FMC Technologies:
    • Subsea trees, controls, manifolds, and well connection systems
    • Supply of two manifolds and associated controls equipment, in addition, the scope includes several pipeline end terminations, flowline and well jumper kits and umbilical termination assemblies for water injection
  • Manatee: Subsea construction & commissioning, jumper fabrication, manifold design, flowline construction, tree procurement & installation, after market equipment support, interface issues, completions riser system, operations, marine logistics, and rig construction.
  • Nexans: Water Injection Umbilical


  • 1999 - Thunder Horse Oil Field discovered
  • 2002 - BP Retires Crazy Horse Name - Project re-named Thunder Horse
  • 2005 - The platform was found heavily listing following the passing of Hurricane Dennis
  • 2008 - BP announced that it has successfully started production from the third and fourth wells
  • 2013 - FMC awarded contract to supply water injection equipment


  • Production is from reservoirs between 14,000 to 19,000 feet (4,265 to 5,790 meters) below the seabed with reservoir pressures of 13,000 to 18,000 psi (approx 885 to 1255 bar) and reservoir temperatures of 190 to 270 degrees F (88 to 132 degrees C).


  1. Emerson FPSO References
  2. Mustang Engineering Platform References
  3. International Protective Coatings Platform References
  4. Nexans Norway Umbilical References
  5. Gulf Of Mexico Discoveries In Water Depths Greater Than 5000
  6. Gulf Of Mexico Permanent Deepwater Structures
  7. Gulf Of Mexico Deepwater Natural Gas And Oil Qualified Fields
  8. Top 100 U S Oil And Gas Fields
  9. Manatee Offshore References
  10. McDermott Platform References
  11. Thunderhorse Topsides
  12. BP Amoco Announces Four Major Deepwater Finds in Gulf of Mexico
  13. FMC Technologies Awarded Ten Year BP Frame Contract
  14. BP Retires Crazy Horse Name - Project re-named Thunder Horse
  15. BP Assessing Damage to Thunder Horse Platform in Gulf of Mexico
  16. BP Says That Repair Of Subsea Equipment Will Delay Thunder Horse Until 2008
  17. BP Thunder Horse Production Ramping Up
  18. FMC Technologies Awarded Subsea Contract for BP's Thunder Horse Field
  19. BP selects Technip for the Thunder Horse South Expansion project in the Gulf of Mexico

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