Widuri Oil Field

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Indonesia Oil & Gas Fields

CNOOC Oil & Gas Fields

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Summary Information

  • Operator: CNOOC
  • Country: Indonesia
  • Location: Java Sea
  • Production start: 1971
  • Partners:
  • Type: Oil & Gas
  • Estimated Reserves:
  • Production Volume:


  • The South East Sumatra(SES) is one of oil development offshore of Indonesia.
  • The SES is located in shallow water(20~50m) in the Java Sea off the southeastern coast of Sumatra.
  • The SES covers approximately 8,098 sq km, and is consist of 34 fields and 360 production wells.
  • Since 2010, the Lentera Bangsa FSO collects and stores the oil from all the platforms. Prior to this the Lan Shui FPSO was used
  • Fields include Banuwati, Cinta, Intan, Widuri & Zelda
  • The SES was first awarded to IIAPCO in 1968 under PSC contract and has been produced since 1971.


  • Bluewater: Spread Mooring for Lan Shui FPSO
  • COSCO Guangdong Shipyard: Conversion of MT Lentera Bangsa FSO
  • Tripatra: Engineering for oil processing plant


  • 1968 - Licence for the block awarded
  • 1971 - First oil produced
  • 2002 - CNOOC acquired Repsol's stake and became operator
  • 2004 - Gas sales contract signed
  • 2005 - Talisman became a partner through its acquisition of Paladin Resources
  • 2006 - Phase 1 of the gas project started
  • 2007 - Phase 2 of the gas project started
  • 2010 - Lentera Bangsa FSO was delivered by COSCO
  • 2011 - Risco acquired 5% stake from Salamander



  1. KNOC, Indonesia
  2. International Protective Coatings Fixed Platform References
  3. Bluewater FPSO References
  4. Tripatra Oil And Gas Processing References
  5. CNOOC Limited Agrees to Buy Indonesian Assets of Repsol-YPF for US$585 Million
  6. Execution of Gas Sales Agreement of the Offshore Southeast Sumatra Production Sharing Contract, Indonesia
  7. Talisman to Acquire Paladin Resources Plc for Pounds Sterling 1,218 Million 'C$2,521 Million
  8. CNOOC Ltd. Announces the Startup of SES Gas Project Phase Ⅱ
  9. Delivery Ceremony for MT LENTERA BANGSA Conversion to FSO
  10. Sale Of Interests In Offshore Northwest Java And South East Sumatra PSCs

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