Exploration and Development

In 2010, a total of 47 new exploratory wells ¹ were drilled (23.8 of which represented Eni's share), as compared to 69 exploratory wells drilled in 2009 (37.6 of which represented Eni's share) and 111 exploratory wells drilled in 2008 (58.4 of which represented Eni's share).

Overall commercial success rate was 41% (39% net to Eni) as compared to 41.9% (43.6% net to Eni) and 36.5% (43.4% net to Eni) in 2009 and 2008, respectively.

In 2010 a total of 399 development wells were drilled (178 of which represented Eni's share) as compared to 418 development wells drilled in 2009 (175.1 of which represented Eni's share) and 366 development wells drilled in 2008 (155.1 of which represented Eni's share).

The drilling of 122 wells (43 of which represented Eni's share) is currently underway. Oil and natural gas producing wells were 8,153 (2,895.6 of which represented Eni's share).

1 Including drilled exploratory wells that have been suspended pending further evaluation.