Drilling

Exploration

In 2013, a total of 53 new exploratory wells were drilled (27.8 of which represented Eni’s share), as compared to 60 exploratory wells drilled in 2012 (34.1 of which represent Eni’s share) and 56 exploratory wells drilled in 2011 (28 of which represented Eni’s share).

The following tables show the number of net productive, dry and in progress exploratory wells in the years indicated by the Group and its equity-accounted entities in accordance with the requirements of FASB Extractive Activities – oil&gas (Topic 932).

The overall commercial success rate was 36.9% (38.5% net to Eni) as compared to 40% (40.8% net to Eni) in 2012 and 42% (38.6% net to Eni) in 2011.

Exploratory Well Activity

 

 

 

 

 

 

 

 

 

 

 

Net wells completed

 

Wells in progress at Dec. 31 (a)

 

2011

2012

2013

 

2013

(units)

Productive

Dry (b)

Productive

Dry (b)

Productive

Dry (b)

 

Gross

Net

(a)

Includes temporary suspended wells pending further evaluation.

(b)

A dry well is an exploratory, development, or extension well that proves to be incapable of producing either oil or gas sufficient quantities to justify completion as an oil or gas well.

Italy

 

 

1.0

 

 

 

 

5.0

3.4

Rest of Europe

0.3

0.7

1.0

1.0

 

3.4

 

17.0

6.2

North Africa

6.2

3.4

6.3

11.3

4.9

5.4

 

14.0

9.8

Sub-Saharan Africa

0.6

2.6

4.5

5.1

3.2

6.6

 

60.0

24.3

Kazakhstan

 

 

 

0.8

 

0.4

 

6.0

1.1

Rest of Asia

0.2

7.6

0.5

0.6

4.3

2.7

 

21.0

8.2

America

2.5

 

 

0.1

0.2

1.2

 

4.0

1.2

Australia and Oceania

 

1.4

 

0.4

 

0.5

 

2.0

0.8

 

9.8

15.7

13.3

19.3

12.6

20.2

 

129.0

55.0

Development

In 2013 a total of 463 development wells were drilled (187.2 of which represented Eni’s share) as compared to 351 development wells drilled in 2012 (163.6 of which represented Eni’s share) and 407 development wells drilled in 2011 (186.1 of which represented Eni’s share).

The drilling of 130 wells (45 of which represented Eni’s share) is currently underway.

The following tables show the number of net productive, dry and in progress development wells in the years indicated by the Group and its equity-accounted entities in accordance with the requirements of FASB Extractive Activities – oil&gas (Topic 932).

Development Well Activity

 

 

 

 

 

 

 

 

 

 

 

Net wells completed

 

Wells in progress at Dec. 31

 

2011

2012

2013

 

2013

(units)

Productive

Dry (b)

Productive

Dry (b)

Productive

Dry (b)

 

Gross

Net

(a)

Includes temporary suspended wells pending further evaluation.

(b)

A dry well is an exploratory, development, or extension well that proves to be incapable of producing either oil or gas sufficient quantities to justify completion as an oil or gas well.

Italy

25.3

 

18.0

1.0

7.4

1.0

 

3.0

3.0

Rest of Europe

3.3

0.3

2.9

0.6

6.3

 

 

31.0

5.9

North Africa

55.9

1.1

46.0

1.6

61.6

3.3

 

20.0

11.3

Sub-Saharan Africa

28.2

1.0

27.4

0.3

26.3

1.2

 

20.0

5.1

Kazakhstan

1.3

 

1.4

 

0.3

 

 

17.0

3.1

Rest of Asia

39.2

2.5

41.2

0.1

61.7

4.3

 

26.0

11.4

America

27.6

 

23.1

 

13.8

 

 

12.0

4.8

Australia and Oceania

0.4

 

 

 

 

 

 

1.0

0.4

 

181.2

4.9

160.0

3.6

177.4

9.8

 

130.0

45.0