Supplemental oil and gas information

Movements in net proved hydrocarbons reserves

(mmboe)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Italy

Rest of Europe

North Africa

Sub-Saharan
Africa

Kazakh­stan

Rest of Asia

America

Australia
and Oceania

Total

2013

 

 

 

 

 

 

 

 

 

Consolidated subsidiaries

 

 

 

 

 

 

 

 

 

Reserves at December 31, 2012

524

591

1,915

1,048

1,041

184

236

128

5,667

of which: developed

406

349

1,080

716

458

108

170

107

3,394

undeveloped

118

242

835

332

583

76

66

21

2,273

Purchase of minerals in place

 

 

4

 

 

 

 

 

4

Revisions of previous estimates

38

35

59

169

30

81

37

59

508

Improved recovery

 

 

 

5

 

 

 

 

5

Extensions and discoveries

4

1

6

53

 

38

6

 

108

Production

(67)

(57)

(201)

(120)

(36)

(40)

(39)

(11)

(571)

Sales of minerals in place

 

(13)

 

 

 

 

 

 

(13)

Reserves at December 31, 2013

499

557

1,783

1,155

1,035

263

240

176

5,708

Equity-accounted entities

 

 

 

 

 

 

 

 

 

Reserves at December 31, 2012

 

 

20

81

 

668

730

 

1,499

of which: developed

 

 

20

 

 

82

20

 

122

undeveloped

 

 

 

81

 

586

710

 

1,377

Purchase of minerals in place

 

 

1

(5)

 

4

 

 

 

Revisions of previous estimates

 

 

 

 

 

 

 

 

 

Improved recovery

 

 

 

 

 

 

 

 

 

Extensions and discoveries

 

 

 

 

 

 

 

 

 

Production

 

 

(2)

(1)

 

(13)

(4)

 

(20)

Sales of minerals in place

 

 

 

 

 

(652)

 

 

(652)

Reserves at December 31, 2013

 

 

19

75

 

7

726

 

827

Reserves at December 31, 2013

499

557

1,802

1,230

1,035

270

966

176

6,535

Developed

408

343

1,022

701

566

93

171

123

3,427

consolidated subsidiaries

408

343

1,003

701

566

90

153

123

3,387

equity-accounted entities

 

 

19

 

 

3

18

 

40

Undeveloped

91

214

780

529

469

177

795

53

3,108

consolidated subsidiaries

91

214

780

454

469

173

87

53

2,321

equity-accounted entities

 

 

 

75

 

4

708

 

787

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