The "Annamaria" field extends between Italy and Croatia and it is the first cross-border field to be put into production in the Adriatic.

Eni has announced the start-up of production on its offshore gas platform “Annamaria B‘ in the A.C11.AG concession (eni operator 90%, Ligestra 10%).

Production today is approximately 800,000 cubic metres per day, but will reach about 1.2 million cubic metres a day (equivalent to 7500 barrels of oil) when it is running regularly. 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.
The confirmed reserves of gas produced at the field, plus estimated reserves, total approximately 10 billion cubic metres (equivalent to about 64 million barrels of oil).

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, and the unitization and joint development agreement was approved by the Croatian and Italian governments in July 2009.
The twin “Annamaria A" platform in the field, located in Croatian waters, is already operational and run by InAgip (a joint venture between INA and eni), producing roughly 800,000 cubic metres per day.

Annamaria, the most important gas field to be put into production since 1998, was fully developed by Italian and Croatian companies with orders for a total of approximately €420 million.

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.

In Italy, Eni produces a total of approximately 242,000 barrels of oil equivalent per day.