THAILAND ENERGY RESERVE

THAI ENERGY RESERVES31 DECEMBER 2011

ENERGY TYPE RESERVES* PRODUCTION

AVAILABLE FOR USE (YEAR)

(ORIGINAL UNIT) P1 P1+P2 P1+P2+P3 2011 P1 P1+P2 P1+P2+P3

PETROLEUM        

- CRUDE OIL (MMBBL.) 215 598 807 50 4 12 16

- CONDENSATE (MMBBL.) 239 545 671 28 9 20 24

- NATURAL GAS (BCF) 10,061 20,854 27,423 996 10 21 28

LIGNITE (M. TONS) 1,181 2,007 2,007 21 55 94 94

REMARK: P1 = PROVED RESERVES, P2 = PROBABLE RESERVES, P3 = POSSIBLE RESERVESSOURCES: * DEPARTMENT OF MINERAL FUELS

WORLD ENERGY RESERVE

World Energy Proved Reserves

  Unit at end 2012

Production R/P Ratio

Oil Thousand Million Barrels 1,669 31.5 53

Natural Gas Trillion Cubic Metres 187 3.4 56

Coal Million Tonnes 860,938 7,865 109

Source: BP 2013

- 5 -

Fossil fuel reserves-to-production (R/P) ratios

Source : BP, 2013

World Oil Proved Reserves

Unit: Thousand Million Barrels

  at end 2012 Share of Total R/P Ratio

North America 220 13.2% 39

S. & Cent. America 328 19.7% *

Europe & Eurasia 141 8.4% 22

Middle East 808 48.4% 78 Africa 130 7.8% 38

Asia Pacific 41 2.5% 14World 1,669 100.0% 53

* More than 100 years.

Source: BP 2013

- 7 -

Distribution of proved oil reserves

Source : BP, 2013

- 8 -

Oil reserves-to-production (R/P) ratios

Source : BP, 2013

World Natural Gas Proved Reserves

Unit: Trillion Cubic Metres

  at end 2012 Share of Total R/P Ratio

North America 10.84 5.8% 12

S. & Cent. America 7.60 4.1% 43

Europe & Eurasia 58.40 31.2% 56

Middle East 80.50 43.0% * Africa 14.50 7.7% 67

Asia Pacific 15.45 8.2% 32World 187.29 100.0% 56

* More than 100 years.

Source: BP 2013

- 10 -

Distribution of proved natural gas reserves

Source : BP, 2013

- 11 -

Natural gas reserves-to-production (R/P) ratios

Source : BP, 2013

World Coal Proved Reserves

Unit: Million Tonnes

  at end 2012 Share of Total R/P Ratio

North America 245,088 28.5% 244

S. & Cent. America 12,508 1.5% 129

Europe & Eurasia 304,604 35.4% 238

Africa 32,895 3.8% 124 Asia Pacific 265,843 30.9% 51

World 860,938 100.0% 109

Source: BP 2013

- 13 -

Proved coal reserves

Source : BP, 2013

- 14 -

Coal reserves-to-production (R/P) ratios

Source : BP, 2013