Natuna D Alpha Oil Field

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Indonesia Oil & Gas Fields

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Summary Information

  • Operator: Exxon
  • Country: Indonesia
  • Location:
  • Production start:
  • Partners:
  • Type: Gas
  • Estimated Reserves:
  • Production Volume:


  • Natuna”s gas is of low quality and it needs high investment to process, considering that it has CO2 content of 70%. “This characteristic makes Natuna”s gas very expensive, and technically it”s very challenging to produce,


  • 1973 - Agip Oil of Italy discovered the field
  • 1985 - A production sharing contract was signed with Exxon
  • 1995 - The PSC is ammended with a basic agreement
  • 2006 - Indonesia revoked the license, saying Exxon had failed to provide a feasibility study
  • 2010 - PGS is in cooperation with MIGAS announced the completed acquisition of a High Definition (HD) MC3D survey


  • The structure is a large structural stratigraphic hydrocarbon trap and is unique in areal extent and reservoir thickness among the various carbonate traps which are present in many southeast Asian basins. The porous reef complex (Terumbu formation) has a fairly homogeneous gas column 5,200 feet thick with C02 content averaging 72%.


  1. Exxon Ready To Invest Us$10 Billion In Natuna D-Alpha
  2. Indonesia - Natuna D-Alpha 3D
  3. Lost Circulation Challenges: Drilling Thick Carbonate Gas Reservoir, Natuna D-Alpha Block
  4. Exxon Asked To Commit To Develop Natuna D Alpha Block

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