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  Attachment 5: Supplemental Information on Petroleum Exploration and
  Production Activities

  -----------------------------------------------------------------------

(A) PTTEP and Its Subsidiaries’ Petroleum Reserves Report As of December
    31, 2014

The total Proved Reserves of PTT Exploration and Production Public
Company Limited (PTTEP) and its Subsidiaries as of December 31, 2014 are
shown in the attached table. The Proved Reserves are reviewed annually
by company’s earth scientists and reservoir engineers to ensure rigorous
professional standards. The Proved Reserves are reported on a gross
basis, which includes the company’s net working interest and related
host country’s interest.

The total Proved Reserves (Consolidated Companies) as of December 31,
2014 of PTTEP and its Subsidiaries are 187 Million Stock Tank Barrels
(MMSTB) for crude and condensate[1], and 3,814 Billion Standard Cubic
Feet (BSCF) for gas. The total Proved Reserves (Consolidated Companies)
in term of oil equivalent are 777 Million Barrels (MMBOE), of which
approximately 52 percent of the total Proved Reserves is Proved
Developed Reserves. Proved Reserves of crude and condensate are
approximately 31% while, for gas, are 69% of the total Proved Reserves
in terms of oil equivalent.

In 2014, the total production of PTTEP and its subsidiaries is 131 MMBOE
(40 MMSTB of crude and condensate and 571 BCF of natural gas (91 Million
Barrels of Oil Equivalent (MMBOE)) or equivalent to the production rate
of approximately 359,259 Barrels of Oil Equivalent per Day (BOED),
approximately 29,846 BOED or 9.06% increase from last year. The
production increase was attributed to the acquisition of Hess
Corporation's interests in Sinphuhorm and Contract 4 projects in April,
which are currently producing and the start of Zawtika production.

   

[TABLE]

(1) The proved reserves are reported on a gross basis which includes the
    company's net working interest and the related host country’s
    interest.

(2) Included the proved reserves and production of LPG and Bitumen.

(B) Capitalized Costs Relating to Oil and Gas Producing Activities

Capitalized costs represent cumulative expenditures for proved and
unproved properties, and support equipment and facilities used in oil
and gas exploration and production operations together with related
accumulated depreciation, depletion, amortization and impairment.

Proved properties include exploration & development wells,
transportation pipeline, and related equipment and producing facilities
associated with proved reserves project. Unproved properties represent
amounts associated with non-proved reserve project. Support equipment
and facilities include warehouse, field offices, vehicles and movable
assets used in oil and gas producing activities.

The net capitalized costs represent the undepreciated value for these
assets.

  -------------------------------------------- ------------- -------------
  (Unit: Million US Dollar)                    2014          2013

  Proved properties                            21,628        20,532

  Unproved properties                          5,042         3,172

  Decommissioning costs                        1,984         1,065

  Support equipment and facilities             187           185

  Gross capitalized costs                      28,841        24,954

  Accumulated depreciation, depletion,         (13,014)      (9,207)
  amortization and impairment                                

  Net capitalized costs                        15,827        15,747
  -------------------------------------------- ------------- -------------

(C) Costs Incurred in Oil and Gas Property Acquisition, Exploration, and
Development Activities

Costs incurred in oil and gas property acquisition, exploration and
development activities represent amounts both capitalized and charged to
expense during the year.

Property acquisition costs include costs to purchase proved and unproved
properties.

Exploration costs include the costs of geological and geophysical work,
carrying and retaining undeveloped properties, and drilling and
equipping exploratory wells.

Development costs include costs associated with drilling and equipping
development wells, improved recovery systems, facilities for extraction,
treating, gathering and storage, producing facilities for existing
developed reserves, and costs associated with transportation pipeline.

  ------------------------ ---------- --------- ------- ---------- --------- -------
  (Unit: Million US        2014                         2013                 
  Dollar)                                                                    

                           Domestic   Foreign   Total   Domestic   Foreign   Total

  Acquisition of                                                             
  properties                                                                 

  - Proved                 590        -         590     484        344       828

  - Unproved               352        95        447     -          -         -

  Exploration costs        124        579       703     236        239       475

  Development costs        1,270      759       2,029   1,146      1,324     2,470

  Total                    2,336      1,433     3,769   1,866      1,907     3,773

                                                                             
  ------------------------ ---------- --------- ------- ---------- --------- -------

(D) Results of operations for producing activities

Results of operations from oil and gas producing activities for the year
2014 and 2013 are shown in the following table.

Operating costs include lifting costs incurred to operate and maintain
productive wells and related equipment. Exploration expenses consist of
geological and geophysical costs, and dry hole costs.

General administrative expenses are expenses directly related to oil and
gas producing activities.

Depreciation, Depletion and Amortization expense relates to capitalized
costs incurred in acquisition, exploration and development activities,
transportation pipeline, including amortized decommissioning costs.

Other (income) expenses include pipeline transportation income and
foreign exchange gains and losses directly related to oil and gas
producing activities.

Income tax expenses are based on the results of operations from
petroleum producing activities.

General corporate overhead and finance costs are excluded from the
results of operations for petroleum producing activities.

  -----------------------------------------------------------------------------------------
  (Unit: Million US Dollar)     2014                         2013                   
                                                             (Restated)             
  ----------------------------- ---------- --------- ------- ------------ --------- -------
                                Domestic   Foreign   Total   Domestic     Foreign   Total

  Gross revenues                                                                     

  Sales – Related parties       5,034      1,643     6,677   5,324        820       6,144

  Sales – Third parties         294        935       1,229   257          1,087     1,344

  Total Sales                   5,328      2,578     7,906   5,581        1,907     7,488

  Expenses                                                                           

  Operating expenses            494        637       1,131   431          556       987

  Exploration expenses          80         253       333     36           136       172

  General administrative        93         78        171     77           96        173
  expenses                                                                          

  Petroleum royalties and       668        118       786     699          118       817
  remuneration                                                                      

  Depreciation, depletion and   1,633      906       2,539   1,301        319       1,620
  amortization                                                                      

  Other (income) / expenses     (3)        962       959     6            (37)      (31)

  Total expenses                2,965      2,954     5,919   2,550        1,188     3,738

  Results before income taxes   2,363      (376)     1,987   3,031        719       3,750

  Income tax expenses           865        353       1,218   1,159        282       1,441

  Net results of operations     1,498      (729)     769     1,872        437       2,309
  -----------------------------------------------------------------------------------------

(E) Standardized Measure of Discounted Future Net Cash Flows (SMDCF)
    Relating to the Proved Oil and Gas Reserves

The standardized measure of discounted future net cash flows related to
the above proved oil and gas reserves, is computed by applying 12-month
average prices* (with consideration of price changes only to the extent
provided by contractual arrangements), to the estimated future
production of year-end remaining proved oil and gas reserves less
estimated future expenditures (based on year-end costs) to be incurred
in developing and producing the proved reserves.

Future income taxes are calculated by applying the appropriate year-end
statutory tax rates to the future pre-tax net cash flows and deducted by
applicable tax deductions or tax credits.

Net Cash flows are discounted using a rate of 10% per year to reflect
the estimated timing of the future cash flows.

The estimation of discounted future net cash flow shown below is not
intended to represent the fair value of oil and gas properties. The fair
value should take into account of several factors, such as probable and
possible reserves which may turn into proved reserves in the future,
anticipated future oil and gas prices, interest rates, changes in
development and production costs and risks associated with future
production. Therefore the fair value will subject to the view and
perception of analyst.

* Twelve-month average prices are calculated as the unweighted
arithmetic average of the first-day-of-the-month price for each month.

Standardized Measure of Discounted Future Net Cash Flows Relating to
Proved Oil and Gas Reserves

  ------------------------ ---------- --------- --------- --------- --------- ---------
  (Unit: Million US        Domestic             Foreign             Total     
  Dollar)                                                                     

                           2014       2013      2014      2013      2014      2013

  Future cash inflows      20,573     19,426    15,771    23,439    36,344    42,865

  Future production costs  (2,784)    (2,782)   (2,381)   (6,671)   (5,165)   (9,453)

  Future development costs (6,393)    (5,163)   (2,111)   (2,636)   (8,504)   (7,799)

  Future income tax        (4,016)    (3,333)   (1,648)   (2,388)   (5,664)   (5,721)
  expenses                                                                    

  Future net cash flows    7,380      8,148     9,631     11,744    17,011    19,892

  10% annual discount      (1,495)    (2,095)   (3,287)   (4,740)   (4,782)   (6,835)

  Standardized measure of  5,885      6,053     6,344     7,004     12,229    13,057
  discounted future net                                                       
  cash flows (SMDCF)                                                          
  ------------------------ ---------- --------- --------- --------- --------- ---------

Changes in Standardized Measure of Discounted Future Net Cash Flows
Relating to Proved Oil and Gas Reserves

  -------------------------------------------- ------------- -------------
  (Unit: Million US Dollar)                    2014          2013

  Present value at beginning of year           13,057        14,437

  Sales and transfers of oil and gas produced, (5,339)       (5,180)
  net of production costs                                    

  Development costs incurred during the period 2,590         2,557

  Net changes in prices and production costs   (357)         (2,364)

  Net changes in development costs             (2,290)       (1,303)

  Extensions, discoveries and improved         943           932
  recovery                                                   

  Revisions of previous quantity estimates     1,040         697

  Purchases / sales of petroleum in place      73            258

  Accretions of discount                       2,454         1,067

  Net changes in income taxes                  58            1,956

  Present value at the year end                12,229        13,057
  -------------------------------------------- ------------- -------------

(F) Other Information

  Productive Oil/Condensate and Gas Wells

  The numbers of productive wells at December 31, 2014 were as follows:

  ---------------------------------- ----------------- -------- -------- -------- --
                                     Oil/Condensate*            Gas               

                                     Gross             Net      Gross    Net      

  Thailand                           879               466      1,145    500      

  Foreign                                                                         

  Southeast Asia                     27                7        141      60       

  North America                      9                 4        -        -        

  Middle East and Others             7                 6        11       11       

  Total                              922               483      1,297    571      
  ---------------------------------- ----------------- -------- -------- -------- --

* include Bitumen Wells

  Drilling in Progress of Oil/Condensate* and Gas Wells

  The numbers of wells in progress at December 31, 2014 were as follows:

+----------------------------------+------+-----------+---+-----------+
|                                  |      |   Gross   |   | Net       |
+----------------------------------+------+-----------+---+-----------+
| Exploratory                      |      |           |   |           |
+----------------------------------+------+-----------+---+-----------+
| Thailand                         |      |   1       |   | 0.44445   |
+----------------------------------+------+-----------+---+-----------+
| Foreign                          |      |           |   |           |
+----------------------------------+------+-----------+---+-----------+
| Southeast Asia                   |      |   5       |   | 3.8       |
+----------------------------------+------+-----------+---+-----------+
| Middle East and Others           |      |   2       |   | 0.345     |
+----------------------------------+------+-----------+---+-----------+
| Total                            |      |   8       |   | 4.58945   |
+----------------------------------+------+-----------+---+-----------+

  Development

+----------------------------------+------+-----------+---+-----------+
| Thailand                         |      | 38        |   |           |
|                                  |      |           |   |  19.18335 |
+----------------------------------+------+-----------+---+-----------+
| Foreign                          |      |           |   |           |
+----------------------------------+------+-----------+---+-----------+
| Southeast Asia                   |      | 5         |   |   0.915   |
+----------------------------------+------+-----------+---+-----------+
| Australia                        |      | -         |   |   -       |
+----------------------------------+------+-----------+---+-----------+
| Middle East and Others           |      | 2         |   |   1.35    |
+----------------------------------+------+-----------+---+-----------+
| Total                            |      | 45        |   |           |
|                                  |      |           |   |  21.44835 |
+----------------------------------+------+-----------+---+-----------+

* include Bitumen Wells

  Net Oil/Condensate* and Gas Wells Drilled Annually in 2014

+----------------------------------+------+-----------+---+-----------+
|                                  |      | Net       |   | Net dry   |
|                                  |      | P         |   |           |
|                                  |      | roductive |   | well      |
|                                  |      | wells     |   | drilled   |
|                                  |      | drilled   |   |           |
+----------------------------------+------+-----------+---+-----------+
| Exploratory                      |      |           |   |           |
+----------------------------------+------+-----------+---+-----------+
| Thailand                         |      | 14.138895 |   | 8.0275    |
+----------------------------------+------+-----------+---+-----------+
| Foreign                          |      |           |   |           |
+----------------------------------+------+-----------+---+-----------+
| Southeast Asia                   |      | 4.0       |   | 2.6685384 |
|                                  |      |           |   |           |
| Australia                        |      | -         |   | -         |
+----------------------------------+------+-----------+---+-----------+
| Middle East and Others           |      | 1.5       |   | 0.72      |
+----------------------------------+------+-----------+---+-----------+
| Total                            |      | 19.638895 |   | 1         |
|                                  |      |           |   | 1.4160384 |
+----------------------------------+------+-----------+---+-----------+

Development

+----------------------------------+------+-----------+---+-----------+
| Thailand                         |      | 211.0559  |   | 2.9582    |
+----------------------------------+------+-----------+---+-----------+
| Foreign                          |      |           |   |           |
+----------------------------------+------+-----------+---+-----------+
| Southeast Asia                   |      | 14.08636  |   | -         |
|                                  |      |           |   |           |
| Australia                        |      | 0.896875  |   | -         |
+----------------------------------+------+-----------+---+-----------+
| Middle East and Others           |      | 1.7       |   | -         |
+----------------------------------+------+-----------+---+-----------+
| Total                            |      | 2         |   | 2.9582    |
|                                  |      | 27.739135 |   |           |
+----------------------------------+------+-----------+---+-----------+

* include Bitumen Wells

  Gross wells include the total number of wells in which the company has
  an interest excluding utility wells.

  Net wells are the sum of the company’s fractional interests in gross
  wells.

Quarterly Information in 2014 and 2013 for the consolidated financial
statement are as follows:

  ---------------------------- --------------- --------------- --------------- ---------------
                                                                               Unit: US
                                                                               Dollars

  Year 2014                    4thQ            3thQ            2thQ            1thQ

  Revenues                                                                     

  Sales                        1,806,541,773   1,959,035,689   1,945,629,666   1,784,951,307

  Revenue from pipeline        38,743,913      37,369,030      34,093,118      27,719,064
  transportation                                                               

  Other income                                                                 

  Gain on foreign exchange     -               -               8,799,731       -

  Interest income              7,591,572       4,914,057       4,192,842       5,872,059

  Gain on financial            150,822,109     72,180,673      -               -
  derivatives                                                                  

  Other income                 22,406,240      19,177,450      113,233,296     9,008,108

  Total Revenues               2,026,105,607   2,092,676,899   2,105,948,653   1,827,550,538

  Expenses                                                                     

  Operating expenses           191,263,799     174,700,003     206,484,931     284,058,014

  Exploration expenses         125,555,697     125,778,008     65,446,671      16,136,152

  Administrative expenses      134,168,168     80,748,989      90,959,020      52,157,514

  Petroleum royalties and      183,634,854     205,190,408     206,394,243     190,552,959
  remuneration                                                                 

  Depreciation, depletion and  779,671,245     666,409,088     617,887,060     499,289,046
  amortization                                                                 

  Other expenses                                                               

  Loss on foreign exchange     21,009,922      32,994,674      -               3,845,566

  Loss on financial            -               -               24,862,208      1,122,584
  derivatives                                                                  

  Management's remuneration    1,794,914       1,324,709       1,460,664       1,478,452

  Impairment loss on assets    996,790,379     -               -               -

  Other expenses               -               -               41,125,056      -

  Finance costs                82,180,451      62,393,567      58,352,226      56,508,961

  Total Expenses               2,516,069,429   1,349,539,446   1,312,972,079   1,105,149,248

  Share of gain from           870,730         1,602,727       1,117,896       (123,874)
  associates                                                                   

  Profit before income taxes   (489,093,092)   744,740,180     794,094,470     722,277,416

  Income tax expenses          (250,218,520)   (268,157,680)   (233,634,994)   (342,549,087)

  Profit(Loss) for the year    (739,311,612)   476,582,500     560,459,476     379,728,329

  Earnings per share (Baht)                                                    

  Basic earnings per share     (0.20)          0.12            0.14            0.10

  Diluted earnings per share   (0.20)          0.12            0.14            0.10
  ---------------------------- --------------- --------------- --------------- ---------------

  ---------------------------- --------------- --------------- --------------- ---------------
                                                                               Unit: US
                                                                               Dollars

  Year2013 (Restated)          4thQ            3thQ            2thQ            1thQ

  Revenues                                                                     

  Sales                        1,816,244,897   1,776,487,811   1,781,405,147   1,797,758,169

  Revenue from pipeline        37,212,847      37,267,755      38,552,033      37,641,884
  transportation                                                               

  Other income                                                                 

  Gain on foreign exchange     -               4,178,300       -               40,622,210

  Interest income              7,054,380       5,642,364       8,065,016       12,303,333

  Gain on financial            -               -               11,292,979      1,386,592
  derivatives                                                                  

  Other income                 44,049,806      17,257,284      11,753,485      16,202,162

  Total Revenues               1,904,561,930   1,840,833,514   1,851,068,660   1,905,914,350

  Expenses                                                                     

  Operating expenses           226,440,686     215,117,451     200,628,467     185,190,875

  Exploration expenses         56,740,786      48,387,325      29,969,883      36,921,675

  Administrative expenses      143,094,657     69,834,128      56,468,580      63,264,848

  Petroleum royalties and      202,384,841     199,176,958     203,851,715     211,327,022
  remuneration                                                                 

  Depreciation, depletion and  460,170,810     410,311,195     376,448,407     390,469,550
  amortization                                                                 

  Other expenses                                                               

  Loss on foreign exchange     64,211,059      -               70,139,908      -

  Loss on financial            9,488,063       8,631,630       -               -
  derivatives                                                                  

  Management's remuneration    1,497,165       1,468,264       1,709,515       1,510,184

  Finance costs                61,774,202      42,804,873      47,953,612      48,232,161

  Total Expenses               1,225,802,269   995,731,824     987,170,087     936,916,315

  Share of gain from           986,765         2,197,555       1,376,333       1,596,581
  associates                                                                   

  Profit before income taxes   679,746,426     847,299,245     865,274,906     970,594,616

  Income tax expenses          (440,967,971)   (280,822,598)   (503,732,394)   (290,746,670)

  Profit(Loss) for the year    238,778,455     566,476,647     361,542,512     679,847,946

  Earnings per share (Baht)                                                    

  Basic earnings per share     0.06            0.14            0.09            0.17

  Diluted earnings per share   0.06            0.14            0.09            0.17
  ---------------------------- --------------- --------------- --------------- ---------------

Five-year Petroleum Sales Volume and Unit Price Summary

[TABLE]

[1] Included the proved reserves and production of LPG and Bitumen