1. THAILAND ENERGY RESERVE

2. THAI ENERGY RESERVES 31 DECEMBER 2011 ENERGY TYPERESERVES*PRODUCTIONAVAILABLE FOR USE (YEAR) (ORIGINAL UNIT)P1P1+P2P1+P2+P32011P1P1+P2P1+P2+P3 PETROLEUM - CRUDE OIL (MMBBL.)2155988075041216 - CONDENSATE (MMBBL.)2395456712892024 - NATURAL GAS (BCF)10,06120,85427,423996102128 LIGNITE (M. TONS)1,1812,007 215594 REMARK: P1 = PROVED RESERVES, P2 = PROBABLE RESERVES, P3 = POSSIBLE RESERVES SOURCES: * DEPARTMENT OF MINERAL FUELS

3. WORLD ENERGY RESERVE

4. World Energy Proved Reserves Unitat end 2012ProductionR/P Ratio Oil Thousand Million Barrels 1,66931.553 Natural GasTrillion Cubic Metres1873.456 CoalMillion Tonnes860,9387,865109 Source: BP 2013

5. - 5 - Fossil fuel reserves-to-production (R/P) ratios Source : BP, 2013

6. World Oil Proved Reserves Unit: Thousand Million Barrels at end 2012Share of TotalR/P Ratio North America22013.2%39 S. & Cent. America32819.7%* Europe & Eurasia1418.4%22 Middle East80848.4%78 Africa1307.8%38 Asia Pacific412.5%14 World1,669100.0%53 * More than 100 years. Source: BP 2013

7. - 7 - Distribution of proved oil reserves Source : BP, 2013

8. - 8 - Oil reserves-to-production (R/P) ratios Source : BP, 2013

9. World Natural Gas Proved Reserves Unit: Trillion Cubic Metres at end 2012Share of TotalR/P Ratio North America10.845.8%12 S. & Cent. America7.604.1%43 Europe & Eurasia58.4031.2%56 Middle East80.5043.0%* Africa14.507.7%67 Asia Pacific15.458.2%32 World187.29100.0%56 * More than 100 years. Source: BP 2013

10. - 10 - Distribution of proved natural gas reserves Source : BP, 2013

11. - 11 - Natural gas reserves-to-production (R/P) ratios Source : BP, 2013

12. World Coal Proved Reserves Unit: Million Tonnes at end 2012Share of TotalR/P Ratio North America245,08828.5%244 S. & Cent. America12,5081.5%129 Europe & Eurasia304,60435.4%238 Africa32,8953.8%124 Asia Pacific265,84330.9%51 World860,938100.0%109 Source: BP 2013

13. - 13 - Proved coal reserves Source : BP, 2013

14. - 14 - Coal reserves-to-production (R/P) ratios Source : BP, 2013