Oil and gas reserves

Proven oil and gas reserves are the estimated volumes of crude oil, natural gas and condensate that are shown by geological and engineering data with reasonable certainty to be recoverable in future years from known reserves under existing economic and operating conditions. Accordingly, reserve estimates could be materially different from the quantities of oil and natural gas that are ultimately recovered. To reduce uncertainties, Wintershall uses independent, internationally recognized reserve auditors to perform recurring reserves audits of its major oil and gas fields.

The tables on the following pages show the company’s developed proven and probable proven reserves as of December 31, 2013, and December 31, 2014, as well as changes attributable to production and other factors.

Oil 2014

 

 

Germany

Rest of Europe

Russia

North Africa, Middle East

South America

Total

Proven developed and undeveloped oil reserves as of January 1, million barrels (MMbbl)

 

57

43

89

117

11

317

Revisions and other changes

 

3

29

103

(10)

1

126

Extensions and discoveries

 

Purchase/sale of reserves

 

15

15

Production

 

7

9

9

4

2

31

Proven reserves as of December 31

 

53

78

183

103

10

427

Thereof equity-accounted companies

 

8

93

101

Proven reserves excluding equity-accounted companies

 

53

78

175

10

10

326

Proven developed reserves as of December 31

 

43

42

112

89

7

293

Gas 2014

 

 

Germany

Rest of Europe

Russia

North Africa, Middle East

South America

Total

1

Natural gas can be converted with a factor of 5.6 BSCF per MMBOE (million barrels of oil equivalent).

Proven developed and undeveloped gas reserves as of January 1, in billion standard cubic feet (BSCF)1

 

208

334

4,773

68

1,009

6,392

Revisions and other changes

 

(38)

38

1,004

(7)

5

1,002

Extensions and discoveries

 

Purchase/sale of reserves

 

370

370

Production

 

24

74

365

127

590

Proven reserves as of December 31

 

146

668

5,412

61

887

7,174

Thereof equity-accounted companies

 

3,350

61

3,411

Proven reserves excluding equity-accounted companies

 

146

668

2,062

887

3,763

Proven developed reserves as of December 31

 

115

350

4,435

53

505

5,458

Oil 2013

 

 

Germany

Rest of Europe

Russia

North Africa, Middle East

South America

Total

Proven developed and undeveloped oil reserves as of January 1, million barrels (MMbbl)

 

57

18

52

124

20

271

Revisions and other changes

 

7

1

44

4

(7)

49

Extensions and discoveries

 

1

1

Purchase/sale of reserves

 

28

28

Production

 

7

4

8

11

2

32

Proven reserves as of December 31

 

57

43

89

117

11

317

Thereof equity-accounted companies

 

9

103

112

Proven reserves excluding equity-accounted companies

 

57

43

80

14

11

205

Proven developed reserves as of December 31

 

45

29

56

96

8

234

Gas 2013

 

 

Germany

Rest of Europe

Russia

North Africa, Middle East

South America

Total

1

Natural gas can be converted with a factor of 5.6 BSCF per MMBOE (million barrels of oil equivalent).

Proven developed and undeveloped gas reserves as of January 1, in billion standard cubic feet (BSCF)1

 

205

129

3,794

86

1,102

5,316

Revisions and other changes

 

27

43

1,328

(13)

41

1,426

Extensions and discoveries

 

Purchase/sale of reserves

 

211

211

Production

 

24

49

349

5

134

561

Proven reserves as of December 31

 

208

334

4,773

68

1,009

6,392

Thereof equity-accounted companies

 

3,637

68

3,705

Proven reserves excluding equity-accounted companies

 

208

334

1,136

1,009

2,687

Proven developed reserves as of December 31

 

168

302

4,264

56

597

5,387