Neptune Oil And Gas Field

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USA Oil & Gas Fields

BHP Billiton Oil & Gas Fields

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Summary Information

  • Operator: BHP Billiton
  • Country: USA
  • Location: Atwater Blocks 573, 574, 575, 617, and 618, GofM
  • Production start: 2008
  • Partners: BHP Billiton - 35%, Marathon - 30 %, Woodside - 20 %; and Repsol - 15 %
  • Type: Oil & Gas
  • Estimated Reserves:
  • Production Volume:


  • The Neptune field is located in the deepwater GoM approximately 120 miles from the coast of Louisiana. The field comprises Atwater Blocks 573, 574, 575, 617, and 618, and water depths here range from 4,200 feet to 6,500 feet.
  • The Neptune TLP is located in approximately 4,250 feet of water and has a design capacity to produce up to 50,000 barrels of oil and 50 million cubic feet of gas per day
  • Crude oil from Neptune is transported to markets via the Caesar pipeline, while natural gas is exported via the Cleopatra Natural Gas Pipeline


  • Signal Intl: TLP construction
  • Gulf Island Fabrication: Construction of topsides


  • 1999 - Neptune Oil And Gas Field discovered
  • 2005 - Final investment decision made for the project
  • 2007 - Neptune TLP installed in the field
  • 2008 - Production starts



  1. Gulf Of Mexico Permanent Deepwater Structures
  2. Gulf Of Mexico Deepwater Natural Gas And Oil Qualified Fields
  3. International Protective Coatings Platform References
  4. BHP Billiton To Develop Neptune Oil And Gas Field In Gulf Of Mexico
  5. Gulf Island Fabrication, Inc. Signs Agreement To Construct Topsides For Gulf Of Mexico-Based Neptune Platform
  6. BHP Billiton Begins Production From Neptune Facility In The Deepwater Gulf Of Mexico

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