THAILAND ENERGY RESERVE

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.) CONDENSATE (MMBBL.) NATURAL GAS (BCF)10,06120,85427, LIGNITE (M. TONS)1,1812, REMARK: P1 = PROVED RESERVES, P2 = PROBABLE RESERVES, P3 = POSSIBLE RESERVES SOURCES: * DEPARTMENT OF MINERAL FUELS

WORLD ENERGY RESERVE

World Energy Proved Reserves Unitat end 2012ProductionR/P Ratio Oil Thousand Million Barrels 1, Natural GasTrillion Cubic Metres CoalMillion Tonnes860,9387, 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 2012Share of TotalR/P Ratio North America %39 S. & Cent. America %* Europe & Eurasia1418.4%22 Middle East %78 Africa1307.8%38 Asia Pacific412.5%14 World1, %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 2012Share of TotalR/P Ratio North America %12 S. & Cent. America %43 Europe & Eurasia %56 Middle East %* Africa %67 Asia Pacific %32 World %56 * More than 100 years. Source: BP 2013

Distribution of proved natural gas reserves Source : BP, 2013

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

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

Proved coal reserves Source : BP, 2013

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