Medusa Oil And Gas Field

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USA Oil & Gas Fields

Murphy Oil & Gas Fields

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Summary Information

  • Operator: Murphy Oil
  • Country: USA
  • Location: Mississippi Canyon Blocks 538 and 582
  • Production start: 2003
  • Partners: W&T Offshore - 15%
  • Type: Oil & Gas
  • Estimated Reserves:
  • Production Volume:


  • The Medusa Spar is moored in over 2,200 feet of water in the Gulf of Mexico, Mississippi Canyon Block 582
  • The spar facility capable of handling 40,000 barrels of crude oil and 110 million cubic feet of natural gas a day
  • Crude is transported by the Mars Crude Oil Pipeline
  • Gas is transported on the Viosca Knoll Gas Pipeline System


  • J. Ray McDermott: General contractor and overall project manager for the design engineering, procurement, fabrication, installation and commissioning of the Medusa offshore production facility
  • FMC Technologies: Surface wellhead and tree systems
  • Oceaneering: Subsea tieback of North Medusa
  • Emerson: Spar - Engineering, Control System, Safety system


  • 1998 - Medusa Oil And Gas Field discovered
  • 2001 - J. Ray McDermott awarded spar contract
  • 2003 - First oil produced
  • 2005 - Subsea tieback of North Medusa completed
  • 2013 - W&T Offshore acquires 15% of the field
  • 2015 - First production from Well #6



  1. Emerson FPSO References
  2. McDermott Platform References
  3. Gulf Of Mexico Permanent Deepwater Structures
  4. Gulf Of Mexico Deepwater Natural Gas And Oil Qualified Fields
  5. FMC Technologies Unit Chosen to Provide Surface Wellhead Solutions for Devils Tower Spar and Medusa Spar Deepwater Projects in Gulf of Mexico
  6. Murphy Oil Announces First Production at Medusa Field
  7. Oceaneering Announces Completion of First Subsea Tieback to the Medusa Spar
  8. J. Ray McDermott Successfully Completes Dual Lift of Medusa Topsides
  9. Oceaneering Announces Medusa Spar Participation Agreement
  10. J Ray McDermott, Inc Awarded EPCI Contract for Murphy Oil Deepwater Spar Project in the Gulf of Mexico
  11. W&T Offshore Announces Acquisition Of Callon Petroleum Assets
  12. W&T Offshore Announces New Discovery At Ewing Banks 910, First Production From Medusa SS #6, And A Status Update On Big Bend And

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