Annamaria Gas Field

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Summary Information

  • Operator: ENI
  • Country: Italy
  • Location: Adriatic
  • Production start: 2010
  • Partners:
  • Type: Gas
  • Estimated Reserves: 10 billion cubic metres
  • Production Volume:


  • The “Annamaria‘ field extends between Italy and Croatia, 60 kilometres from the coast and at a depth of about 60 metres. It is the first cross-border field to be put into production in the Adriatic
  • It has twin platforms, “Annamaria A" on the Croatian side and “Annamaria B" on the Italian side
  • The gas is transported via an underwater pipeline to the Fano treatment plant, roughly 70 kilometres away, to be fed into the national distribution network.
  • Annamaria B is connected to 6 producing wells


  • The platforms were built by a consortium consisting of Rosetti Marino, Saipem Energy Services and Intermare Sarda in the Italian yards; Marina di Ravenna and Arbatax, and the Rijeka yard in Croatia
  • Viktor Lenac: Annamaria A - Gas production platform
  • Saipem:
    • Annamaria A/B Basic Design and Detail Design
    • Transport & Installation of Annamaria A & B platform, topside and sealines


  • 2002 - ENI signed an agreement for the development of the field
  • 2009 - Platform installed
  • 2010 - First gas produced



  1. Offshore Platforms in Italy
  2. Tecon Platform References
  3. Viktor Lenac Platform References
  4. Rosetti Marino Platform References
  5. Saipem Fixed Offshore Production Facilities Engineering Refe
  6. Saipem Europe Fixed Offshore Production Facilities Project R
  7. Eni: Start Up Of The Gas Fields In The Offshore of Croatia With Reserves Of 20 Billion Cubic Meters
  8. Eni starts production on the Italian section of the ''Annamaria'' field, off the Marche coast

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