Who Dat Oil Field

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USA Oil & Gas Fields

LLOG Oil & Gas Fields

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Summary Information

  • Operator: LLOG
  • Country: USA
  • Location: Gulf of Mexico, Mississippi Canyon Block 503
  • Production start: 2011
  • Partners:
  • Type: Oil / Gas
  • Estimated Reserves:
  • Production Volume:


  • The Opti-Ex Floating Production System (FPS) is located in a water depth of 3100 feet and is held in place with twelve chainpolyester-chain mooring lines connected to 80 feet long suction pile anchors
  • Processing capacity of the Opti-Ex is 60,000 BOPD and 150 MMCFD.


  • Samsung Heavy Industries: Construction of the FPS Hull
  • Kiewit Offshore: Construction of the FPS Topsides
  • FMC Technologies:
    • Seven subsea production trees and control systems
    • Supply includes subsea trees, a subsea manifold, multiphase meters and a subsea distribution system
  • Expro: Provision of subsea test trees


  • 2007 - Who Dat Oil Field discovered
  • 2011 - Platform installed
  • 2011 - First oil produced
  • 2013 - FMC awarded subsea equipment contract


  • The development consists of Miocene-aged, amplitude-supported sands


  1. OPTI-EX
  2. Gulf Of Mexico Permanent Deepwater Structures
  3. Samsung Platform References
  4. LLOG Announces Installation of the Opti-Ex (FPS) at the "Who Dat" Field
  5. FMC Technologies Awarded $40 Million Subsea Systems Contract From LLOG
  6. Expro awarded subsea award with LLOG Exploration
  7. FMC Technologies Receives $30 Million Subsea Equipment Order for LLOG Exploration's Who Dat Field
  8. LLOG Provides Updates on 5 Deepwater Projects, Launches Website
  9. LLOG Exploration Announces Initiation of Production from the "Who Dat" Field and Provides Operational Update

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