Maleo Gas Field

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Indonesia Oil & Gas Fields

Santos Oil & Gas Fields

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Summary Information

  • Operator: Santos
  • Country: Indonesia
  • Location: 2.25 Madura Offshore PSC, East Java
  • Production start: 2006
  • Partners: Santos - 67.5% (operator), PC Madura Ltd - 22.5%, PT Pantai Madura* - 10.0%
  • Type: Gas
  • Estimated Reserves: The field is estimated to have proven and probable reserves of 240 bcf (billion cubic feet)
  • Production Volume: 110 mmscfd


  • Gas from the Maleo field is being produced from a Mobile Offshore Production Unit (MOPU) supported by a new six well wellhead platform which is connected to a 7.4 kilometre spur-line to the East Java Gas Pipeline (EJGP) for distribution to the Surabaya and Gresik gas grid.
  • The MOPU is a converted jack-up drilling rig which was modernised and upgraded in Dubai into a standalone, relocatable gas production facility. It is being leased under a multi-year service agreement with Radiant Utama Interinsco (Indonesia) working with Global Process Systems Inc (Dubai).
  • Using a modified jack-up rig enabled Santos to achieve first gas only 16 months after final investment approval.
  • Gas will be supplied at a plateau rate of up to 110 million standard cubic feet per day (mmscfd) and is expected to operate at plateau production for approximately 5 years.
  • The Peluang Gas Field is a tie back to the MOPU


  • Clough: engineering, procurement, construction and installation of 7.3km x 14 inch diameter gas pipelines, two of subsea manifolds, hot tapping and tie-ins to existing 28 inch pipeline, a protection structure to hot tap and pre-commissioning activities
  • ICON Engineering: Conceptual engineering, multi-discipline detailed design and installation engineering for the Maleo wellhead platform
  • Hallin Marine: Offshore support services


  • 2002 - The Maleo field was discovered
  • 2005 - Santos sign's a sales agreement with PT Perusahaan Gas Negara (PGN)
  • 2006 - First gas production
  • 2014 - First gas produced from Peluang



  1. Maleo, Santos
  2. Oil & Gas Projects
  3. Indonesia Exploration And Production Blocks
  4. Icon Engineering Platform References
  5. New Indonesian Gas Discovery
  6. Santos Produces First Gas In Indonesia
  7. Hallin Marine’s Windermere active in Maleo gas field, Indonesia
  8. First gas from Peluang project ahead of schedule

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