Changes to proved oil and gas reserves

The tables present oil and gas reserves on a net basis, which means that they include the reserves relating to: (i) the Shell subsidiaries including the reserves attributable to non-controlling interest holders in our subsidiaries; and (ii) the Shell share of joint ventures and associates.

Proved crude oil and natural gas liquids, synthetic crude oil and bitumen reserves changes for Shell subsidiaries and the Shell share of joint ventures and associates [A] (at December 31)

Million
barrels

 

2016

2015

2014

2013

2012

[A]

Includes proved reserves associated with future production that will be consumed in operations.

Revisions and reclassifications

284

(252)

62

351

629

Improved recovery

24

4

9

412

13

Extensions and discoveries

127

48

68

182

88

Purchases of minerals in place

1,207

2

48

82

Sales of minerals in place

(12)

(76)

(86)

(4)

(66)

Total additions including year-average price effects

1,630

(274)

53

989

746

Production

(675)

(553)

(544)

(564)

(598)

Proved natural gas reserves changes for Shell subsidiaries and the Shell share of joint ventures and associates [A][B] (at December 31)

Thousand
million scf

 

2016

2015

2014

2013

2012

[A]

Includes proved reserves associated with future production that will be consumed in operations.

[B]

These quantities have not been adjusted to standard heat content.

Revisions and reclassifications

(765)

114

1,767

2,530

(1,343)

Improved recovery

10

7

160

16

Extensions and discoveries

586

249

762

721

667

Purchases of minerals in place

7,537

86

287

54

161

Sales of minerals in place

(77)

(139)

(1,375)

(55)

(684)

Total additions including year-average price effects

7,291

317

1,441

3,410

(1,183)

Production

(4,125)

(3,258)

(3,598)

(3,729)

(3,687)

Total proved oil and gas reserves changes [A][B] (at December 31)

Million boe

 

2016

2015

2014

2013

2012

[A]

Includes proved reserves associated with future production that will be consumed in operations.

[B]

Natural gas volumes are converted into oil equivalent using a factor of 5,800 scf per barrel. Rounding differences may occur in estimates of gas reserves conversion from scf to boe.

Revisions and reclassifications

152

(232)

367

787

397

Improved recovery

26

5

9

440

16

Extensions and discoveries

228

91

199

306

203

Purchases of minerals in place

2,506

16

49

57

110

Sales of minerals in place

(25)

(100)

(323)

(13)

(184)

Total additions including year-average price effects

2,887

(220)

301

1,577

542

Year-average price effects

(1,480)

(1,707)

44

48

(431)

Total additions excluding year-average price effects

4,367

1,487

257

1,529

973

Total additions excluding acquisitions, divestments and year-average price effects

1,886

1,571

531

1,485

1,047

Production

(1,386)

(1,114)

(1,164)

(1,207)

(1,234)

Proved crude oil and natural gas liquids, synthetic crude oil and bitumen reserves changes for Shell subsidiaries and the Shell share of joint ventures and associates [A] (at December 31, 2016)

Million
barrels

 

 

 

 

 

North America

South America

 

 

Europe

Asia

Oceania

Africa

USA

 

 

Canada

Total

 

Oil and NGL

Oil and NGL

Oil and NGL

Oil and NGL

Oil and NGL

Oil and NGL

Synthetic crude oil

Bitumen

Oil and NGL

All products

[A]

Includes proved reserves associated with volumes consumed in operations.

Revisions and reclassifications

21

101

(2)

21

17

3

33

4

86

284

Improved recovery

22

2

24

Extensions and discoveries

5

20

6

96

127

Purchases of minerals in place

85

175

2

14

931

1,207

Sales of minerals in place

(5)

(5)

(2)

(12)

Total additions including year-average price effects

101

303

35

34

7

129

4

1,017

1,630

Production

(87)

(237)

(10)

(85)

(103)

(11)

(56)

(5)

(81)

(675)

Proved natural gas reserves changes for Shell subsidiaries and the Shell share of joint ventures and associates [A][B] (at December 31, 2016)

Thousand
million scf

 

 

 

 

 

North America

South America

 

 

Europe

Asia

Oceania

Africa

USA

Canada

Total

[A]

Includes proved reserves associated with volumes consumed in operations.

[B]

These quantities have not been adjusted to standard heat content.

Revisions and reclassifications

(544)

357

(641)

51

(95)

41

66

(765)

Improved recovery

10

10

Extensions and discoveries

4

197

2

200

180

3

586

Purchases of minerals in place

419

576

4,330

327

151

1,734

7,537

Sales of minerals in place

(7)

(7)

(63)

(77)

Total additions including year-average price effects

(128)

1,140

3,689

380

249

158

1,803

7,291

Production

(1,020)

(1,368)

(553)

(391)

(328)

(269)

(196)

(4,125)

Total proved reserves changes for Shell subsidiaries and the Shell share of joint ventures and associates [A][B] (at December 31, 2016)

Million boe unless specified

 

 

 

 

 

North America

South America

 

 

Europe

Asia

Oceania

Africa

USA

 

 

Canada

Total

 

Oil, NGL and Gas

Oil, NGL and Gas

Oil, NGL and Gas

Oil, NGL and Gas

Oil, NGL and Gas

Oil, NGL and Gas

Synthetic crude oil

Bitumen

Oil and NGL

All products

[A]

Includes proved reserves associated with volumes consumed in operations.

[B]

Natural gas volumes are converted into oil equivalent using a factor of 5,800 scf per barrel. Rounding differences may occur in estimates of gas reserves conversion from scf to boe.

Revisions and reclassifications

(73)

163

(113)

30

1

10

33

4

97

152

Improved recovery

24

2

26

Extensions and discoveries

1

39

54

37

96

1

228

Purchases of minerals in place

157

274

749

70

26

1,230

2,506

Sales of minerals in place

(6)

(6)

(13)

(25)

Total additions including year-average price effects

79

500

636

100

77

34

129

4

1,328

2,887

Year-average price effect

 

 

 

 

 

 

 

 

 

(1,480)

Production

(263)

(473)

(105)

(152)

(160)

(57)

(56)

(5)

(115)

(1,386)

Reserves replacement ratio excluding acquisitions, divestments and year-average price effects

 

 

 

 

 

 

 

 

 

136%

Total additions excluding acquisitions and divestments but including year-average price effects

 

 

 

 

 

 

 

 

 

406

Reserves replacement ratio including acquisitions, divestments and year-average price effects

 

 

 

 

 

 

 

 

 

208%