Fossil fuel

Production

(P)

Reserve

(R1)

R1/P

(years)

Resources

(R2)

R2/P

(years)

Crude oil

4348

224,017

52

457,890

105

Wet natural gas

3160

174,293

55

583,152

1845

Coal

4784

597,382

125

13,394,221

2799

Hard coal

4427

503,063

114

11,915,785

2691

Lignite

357

94,319

264

1,478,436

412