Director-General

In 2001, all business sectors in Thailand finally made a steadily recover from the 1997 Asian economic crisis, approximately at 1.5%-2% growth rate. Modest as it was, still, it is a good sign for investors. Procurement of energy supply for Thailand is one of the most important vehicles in supporting economic recovery. The Thai government has focused on this and prudently planning related management, policies and strategies. In addition, we are presently, reforming the energy affairs bureaucracy system in order to increase government efficiency and quality of services.

Thailandûs energy demand increased about 5 % in 2001 and demand is projected to continue to increase during 2002. The Department of Mineral Resources (DMR), one of the government energy sectors, has an incentive policy for petroleum and coal exploration and are trying to maintain the current energy reserve. Recently, Thai and Cambodian governments have signed a Memorandum of Understanding (MOU) for a further development in the overlapping area where a very high potential of hydrocarbon deposit in Southeast Asia is expected. We do hope that it will become Thailandûs most important supply of petroleum resources in the near future.

Furthermore, the DMR also has an intensive policy to expand the energy utilization market in Thailand. We have been involved in the regional Trans Asian Pipeline and the Bangkok Ring natural gas pipeline project. Policies have been put to encourage more use of natural gas. Several projects are in the feasibility or pre-feasibility stage, for instance, the Natural Gas Vehicle (NGV) project and the Gas-to-Liquid (GTL) project. A policy to utilize diverse energy sources is necessary for the energy security in Thailand, so coal resources are also an important component. Coal with clean technology to protect the environment is also promoted for use in power generation.

Besides energy consumption policies, a rehabilitated environmental policy is also an important priority for Thailand. Recently, a workshop on the decommissioning of offshore oil platforms and related structures was held to find an optimal balance between environmental protection and practical operations. The best technical and financial options available were balanced and coordinated with important environmental considerations. Concrete resolutions defined are being processed and updated rules and regulations will replace. We would like to assure the public that we are trying very hard to protect the sea by correcting past environmental damage and minimizing the risk of future environmental destruction.

Lastly, the collaboration between the Thai government and the energy resource operators in the continued development of the energy business at international standards is the most important assurance to the Thai people on the stability of their energy supply.

Nopadon Mantajit Director General Department of Mineral Resources

1 D i r e c t o r

The year 2001 was a brighter year for the petroleum business since the Asian economic crisis in 1997. The increasing economic growth, higher energy demand, and sharply rising oil price provide an index of favorable investment environment. There had been, unfortunately, a short interruption after the dreadful event of the World Trade Center in September 11th, 2001. The global economy came to a halt for an introspective reflection. All business sectors were interrupted and pondering which direction the global economy would head for.

However, after a brief moment all business sectors continue to grow, including the oil business as well. The Mineral Fuels Division (MFD) is still on its track to coordinate its energy policy and regulations, which allow the Thai government and international operators to smoothly interact in the energy business and create a competitive investment environment. The petroleum and coal exploration and production investment in Thailand will continue on a basis of equivalent benefit between the government and the operators. New technology significantly propels the Thai petroleum business forward at the international standard. Furthermore, a policy to reform the bureaucracy system in energy affairs will help the Thai government to work more smoothly, increase efficiency in the organization, and enhance the value of services that are provided to international operators in the Thai energy resource community.

Energy has an important role not only because of its direct economic benefits, but also in its role in improving peopleûs quality of life. Useful data in the form of statistics to provide an insight to the upstream energy business and the consumption of energy in Thailand are clearly published in the document. We thank you for your interest in our countryûs opportunities and hope that you will find our effort useful.

Krairit Nilkuha Director Mineral Fuels Division

3 C o n t e n t

Message from the Director-General 1 Message from the Director 3 Content 4 Highlights 5 30 years of success 7 Benefits 9 Petroleum Balance 14 Petroleum Concessions 17 Petroleum Exploration 25 Field Development 28 Petroleum Production 34 Activities in the Malaysia-Thailand Joint Development Area (MTJA) 38 Petroleum Reserves 40 Coal Activities in Thailand 45 List of Petroleum Concessionaires 54 Government Agencies, State Enterprises and Institutes 58 List of Coal Operators in Thailand 60 Abbreviation 61

4 H i g h l i g h t s

Activities 1999 2000 2001 Unit Geophysical Surveys • 2D seismic 2,534 493 - line-km • 3D seismic 1,658 134 827.82 sq. km Drilling • exploratory* 35 47 43 well • development 165 179 155 well New Prospects • number of new prospects 8 **7 ***11 Production (Total Sale) • by 8 8 8 concessionaire • from 26 25 26 field • natural gas 650 672 661 Bcf • condensate 18.0 19.4 18.7 MMbbl • oil 11.5 20.5 22.6 MMbbl • values 68.58 107.27 116.29 billion baht • royalties 8.50 13.47 14.6 billion baht • royalty allocation to the sub-district administration organization 203.43 330.63 342.51 million baht • royalty allocation to the provincial administration organization 305.14 495.94 434.51 million baht Concessions • number of concessions 26 25 25 • number of concession blocks 33 32 32

* Include appraisal wells ** Noan Pluang, Chaba (Kung), Arthit-15-3X, Arthit-15-4X, Arthit-15-5X, Arthit-15-6X, Arthit-16-1X *** South Jarmjuree, Arthit-16-2X, Arthit-16-3X, Arthit-14-1X, Arthit-14-3X, Arthit-14-4X, Arthit-14-5X, Arthit-15-9X, Arthit-15-7X, Arthit-15-8X, Arthit-15-10X).

5 30 Years of Success

Established contemporaneously as the Petroleum Act, the Mineral Fuels Division (MFD) has leading role in developing the petroleum resource of the country. The division, as well, has brought other natural energy resources such as coal and oil shale to the public interest. The eminent success of the division can be summarized as follows: On 26 March 1971 the first Petroleum Act was promulgated and given by His Majesty King Bhumibol Adulyadej. In meantime the MFD was set up in the Department of Mineral Resources, Ministry of Industry in order of conveying the Law to success and the first acting director was in charge on 17 January 1972. The first round of petroleum concession bidding was announced on 13 September 1971 and 9 awarders were received altogether 22 blocks. The last, 18th round was publicly open on 11 July 2000. Until 2001, 57 concessions with 92 blocks were already issued and only 25 concessions with 32 blocks were still held. The first-ever petroleum field in Thailand was found in Fang, Chiang Mai long before 1971, but activated by the Law, emerged series of the discoveries: 1971 Surat 1972 Erawan 1973 Bongkot 1974 Kaphong, Baanpot, Dara 1976 Platong, Jakrawan 1977 Jasmine (5-L-1) 1980 Satun 1981 Pladang, Funan, Trat, Pratu Tao, Lan Krabu (Sirikit) 1982 Pakarang, Nam Phong, Chonnabot 1983 Nong Ma Kham, Mae Nam Nan-3, Nong Tum, Phu Hom 1984 Wat Taen, Pru Krathiam, Nong Taku, Bung Ya 1986 Kamphaeng Saen, U-thong 1987 Bung Muang, Nang Nuan-A 1988 Tap Raet, Wichian Buri, Songkhla-1, B4/27-1 1989 Gomin 1990 Dong Mun, Si Thep, Moragot, Pailin, Bua Ban-1, Bo Rang 1991 West Taptim, 1992 B5/27-2, Nang Nuan-B, Ubon, Tantawan 1993 Ton Sak, Yung Thong, B7/32-2, Dao Ruang-1 1994 Mayura, Ton Nok Yoong, Ton Son, Ton Koon, Na Sanun, Mukdahan-1 1995 Benchamas 1996 Plamuk, Pakakrong, Sontaya, Bussabong 1997 West Dara, Maliwan, Chang Daeng, Benchamas North 1998 Ton Rang, North Jarmjuree, South Gomin, Si That-2 1999 Tawan, Chang Phuak, Bua Luang, Boondarik, Arthit-15-1X, Arthit-15-2X, Yala, 10A-1, 11A-1, Nong Jig, South Platong 2000 Noan Pluang, Chaba (Kung), Arthit-15-3X, Arthit-15-4X, Arthit-15-5X, Arthit-15-6X, Arthit-16-1X 2001 South Jarmjuree, Arthit-16-2X, Arthit-16-3X, Arthit-14-1X, Arthit-14-3X, Arthit- 14-4X, Arthit-14-5X, Arthit-15-9X, Arthit-15-7X, Arthit-15-8X, Arthit- 15-10X Many of those have been proved commercial and being produced as following start-ups: 1981 Erawan 1982 Sirikit Main (Lan Krabu)

7 1983 Sirikit West (Nong Makham), Baanpot 1985 Satun, Platong 1987 Pru Krathiam 1988 Nang Nuan-A, Wat Taen 1989 Kaphong 1990 Pratu Tao, Nam Phong 1991 U-Thong, Kamphaeng Saen, Bung Ya 1992 Funan, Surat 1993 Bongkot, Nang Nuan-B, Jakrawan 1994 Bung Muang 1995 Wichian Buri, Sirikit East, Gomin 1996 Na Sanun 1997 Tantawan, Si Thep 1998 Plamuk, Pladang 1999 Benchamas, Trat, Nong Jig, Pailin, Nong Tum 2001 Maliwan Also, corporation with Malaysia to jointly develop the overlapping area between two countries (JDA), found 13 promising fields: 1995 (Cakerawala, Suriya, Muda), 1996 (Tapi, Bulan, Bumi), 1997 (Senja, Bumi East, Samudra, Wira, Jengka, Amarit, Mali). As of sale volume, produced natural gas from the beginning (1981) till 2001 year-end totaled 6.5 Tcf and set the records as follows: 1st Tcf in 1989, 2nd Tcf in 1993, 3rd Tcf in 1996, 4th Tcf in 1998, 5th Tcf in 1999 and 6th Tcf in 2001. Same as associated condensate summed up in the same period to 193.6 MMbbl and passed 50th MMbbl in 1991, 100th MMbbl in 1996 and 150th MMbbl in 1999. Crude oil production by concessionaires started up in 1982. The aggregate sale volume at 2001 year-end was 176.7 MMbbl and reached 50th MMbbl in 1990, 100th MMbbl in 1996 and 150th MMbbl in 2000. For all concessions a total of minimum expenditure through the 1st obligation period was committed nearly to US$446 million and US$794 million for 2nd one. The figure surveyed up to 2000 disclosed the actual expenditure paid by all concessionaires as high as 412,103 million baht (12,549 million baht for G&G, 92,720 million baht for drilling, 114,928 million baht for field development, 74,939 million baht for production, 60,368 million baht for admin and 56,599 million baht for government benefit). In return, sale value from the beginning through the year 2001 amounted to 694,914 million baht (453,539 million baht from gas, 122,374 million baht from condensate and 119,001 million baht from crude oil). To home country, petroleum activities gave directly as royalty as high as 86,743 million baht at 2001 year-end and as petroleum income tax as much as 84,313 million baht at 2001 year-end. Also, the activities brought in much employment for Thai national and huge investment for the country as a whole. In 2000, more than 2,300 Thai were waged in petroleum operation and about 1,000 additional worked for petroleum contractors. At least US$5,700 million would be invested for petroleum exploration and exploitation in the next five year starting from 2001. To assure the steadiness of petroleum supply, sufficient producing wells and production facilities have been installed to meet projected demand. Earliest in 2002, 1,660 producers, 99 wellhead platforms, 5 production platforms, 6 central production platforms, 8 living quarters, 1 compression platform, 2 riser platforms, 1 floating processing, storage and off-loading and 4 floating storage units/off-loading were ready for on offshore duty. Petroleum development in Thailand resulted in loosening its dependency on imported petroleum. Before 1981 Thailand almost totally depended upon imported oil. But in 2001, net petroleum import reduced to 54% of the country demand.

8 Benefits

Production of petroleum in Thailand makes direct revenue as royalty and income tax to the host country. Petroleum royalty is collected, on average, 12.5% of sale value of the produced petroleum. And, petroleum producer has to pay 50% of net profit as income tax. Petroleum Royalty The royalty collected in 2001 was 14.657 billion baht, increased by 8.8% from 2000. This total broke down into 63%, 16% and 21%, from gas, condensate and oil production, respectively.

In return to local community, by law, portions of the Royalty Allocated to PAO in Production Areas royalty gained from onshore production have been allo- Block PAO Baht cated through local administrations since July 2001. Kamphaeng Phet 116,465,582 S1 Phitsanulok 116,465,582 Before 30 June 2001, 20% of the royalty collected was Sukhothai 116,465,582 given back equally to Sub-District Administration NC Kamphaeng Phet 1,744,932 Organization (SDAO) within the produced area. And, Sukhothai 1,744,932 30% other was distributed equally to the Provincial E5 Khon Kaen 78,411,412 Administration Organization (PAO) where the production PTTEP1 Nakhon Pathom 1,241,594 Suphan Buri 1,241,594 area is belonged. SW Phetchabun 728,544 From 1 July 2001 onwards, change has been made in Total 434,509,754 allocation system: 1. 20% of the royalty is equally prorated to SDAO and municipalities where the producing area is located. 2. 10% of the royalty is equally prorated to SDAO and municipalities within the provinces where the producing area is located. 3. 10% of the royalty is equally prorated to SDAO and municipalities elsewhere. 4. 20% of the royalty is allocated to PAO where the producing area is located. In 2001, the royalty collected from 5 onshore petroleum concessions were allocated to 23 SDAO, 7 PAO and a municipality wherein the production areas.

Royalty Allocated to SDAO and Municipality in Production Areas Block Province SDAO/Municipality Baht Lan Krabu 24,045,858 Nong Luang 24,045,858 Chonglom 24,045,858 Kamphaeng Phet Bung Tap Rat 24,045,858 Non Pluang 24,045,858 S1 Lan Krabu Municipality* 10,524,427 Kui Muang 24,045,858 Chum Saeng Songkhram 24,045,858 Phitsanulok Bung Kok 24,045,858 Nong Kula 24,045,858 Kong 24,045,858 Sukhothai Nong Tum 24,045,858 NC Kamphaeng Phet Nong Luang 1,390,907 Sukhothai Nong Chik 1,390,907 Kudnamsai 20,715,838 E5 Khon Kaen Muang Wan 20,715,838 Nam Phong 20,715,838 Nakhon Pathom Thung Luk Nok 649,843 PTTEP1 Suan Taeng 649,843 Suphan Buri Chedi 649,843 Si Thep 171,600 Na Sanun 171,600 SW1A Phetchabun Bo Rang 171,600 Ta Rong* 87,317 Total 342,509,857 * To be allocated since 1 July 2001

9 Petroleum Income Tax Petroleum Income Tax Collecting from 1985, the Petroleum Income Tax accumulated Year Million baht up to 2001 was 84,313.35 million baht. 1985-1990 5,214.42 Especially in 2001, the tax could be collected from 9 1991 2,691.54 companies with the highest-ever of 17,820.91 million baht. 1992 3,002.05 1993 3,296.50 1994 2,919.31 1995 2,987.08 1996 4,434.34 1997 5,317.15 1998 10,869.49 1999 9,963.57 2000 15,796.99 2001 17,820.91 Total 84,313.35

Royalty From Produced Petroleum In Thailand Sales,Value and Royalty of Natural Gas In Thailand (1981-2001) (1981-2001)

Sales,Value and Royalty of Condensate In Thailand Sales,Value and Royalty of Crued Oil In Thailand (1981-2001) (1981-2001)

10 Sales, Value and Royalty of Crude Oil

Petroleum Field 1981-1985 1986-1990 1991-1995 1996 1997 1998 1999 2000 2001 Total Sirikit (LPG) Sales (MMkg) * 41.10 489.74 107.61 107.37 107.75 99.60 106.12 109.60 1,168.88 Value (million baht) 251.51 3,043.86 584.83 725.92 603.90 732.60 1,165.13 1,130.77 8,238.53 Royalty (million baht) 31.44 380.48 73.10 90.74 75.48 91.57 145.64 141.35 1,029.80 Platong Sales (Mbbl) 196.06 196.06 Value (million baht) 147.70 147.70 Royalty (million baht) 18.46 18.46 Kaphong Sales (Mbbl) 176.51 176.51 Value (million baht) 132.28 132.28 Royalty (million baht) 16.54 16.54 Plamuk Sales (Mbbl) 158.38 158.38 Value (million baht) 119.28 119.28 Royalty (million baht) 14.91 14.91 Surat Sales (Mbbl) 2.11 2.11 Value (million baht) 1.67 1.67 Royalty (million baht) 0.21 0.21 Sirikit et al. Sales (Mbbl) 14,663.18 35,528.54 39,319.39 6,800.62 6,461.68 7,534.65 8,405.62 8,619.32 7,803.85 135,136.85 Value (million baht) 9,616.95 14,942.29 16,217.34 3,174.15 3,522.40 3,850.04 5,179.49 8,877.88 7,570.90 72,951.44 Royalty (million baht) 1,202.11 1,867.79 2,027.23 396.77 440.30 481.25 647.43 1,109.74 946.36 9,118.97 Nang Nuan Sales (Mbbl) 475.75 1,687.87 1,908.64 434.20 0.00 0.00 0.00 0.00 4,506.46 Value (million baht) 156.14 670.76 919.00 308.13 0.00 0.00 0.00 0.00 2,054.03 Royalty (million baht) 19.52 83.84 114.88 38.51 0.00 0.00 0.00 0.00 256.74 Kamphang Saen + U-Thong Sales (Mbbl) 1,826.07 350.91 294.10 231.88 198.68 195.41 213.01 3,310.06 Value (million baht) 637.55 154.97 150.63 92.41 100.93 184.08 184.43 1,504.99 Royalty (million baht) 31.88 7.75 7.53 4.11 5.06 9.21 9.22 74.76 Bung Ya + Bung Muang Sales (Mbbl) 315.70 151.16 180.42 177.54 198.68 224.22 314.90 1,562.62 Value (million baht) 112.75 66.96 91.99 68.56 104.92 214.51 276.58 936.27 Royalty (million baht) 5.64 3.35 4.59 3.42 5.24 10.73 13.83 46.79 Wichian Buri Sales (Mbbl) 54.70 101.66 72.18 88.28 49.25 78.34 69.01 513.42 Value (million baht) 16.81 37.92 32.59 31.74 26.36 69.76 59.09 274.27 Royalty (million baht) 0.84 1.90 1.44 1.58 1.32 3.49 2.94 13.50 Tantawan Sales (Mbbl) 1,839.11 2,151.22 1,546.37 2,946.23 2,947.39 11,430.33 Value (million baht) 1,230.51 1,188.38 1,204.95 3,353.93 3,076.56 10,054.32 Royalty (million baht) 160.62 131.33 141.84 439.05 413.93 1,286.77 Benchamas Sales (Mbbl) 1,117.09 8,459.14 10,719.23 20,295.47 Value (million baht) 1,051.08 10,368.15 11,166.79 22,586.0 Royalty (million baht) 133.05 1,356.70 1,484.85 2,975.14 Total Sales (Mbbl) 14,663.18 36,004.29 43,203.73 9,312.99 9,281.69 10,183.57 11,515.69 20,522.68 22,600.44 177,288.26 Value (million baht) 9,616.95 15,349.94 20,699.06 4,937.83 6,062.17 5,835.03 8,400.33 24,233.45 23,866.06 119,000.82 Royalty (million baht) 1,202.11 1,918.74 2,529.91 597.74 743.73 697.17 1,025.51 3,074.54 3,062.60 14,852.60 * LPGûs sales not included in total sales Platong, Kaphong, Plamuk and Surat started in 2001

11 Sales, Value and Royalty of Condensate

Petroleum Field 1981-1985 1986-1990 1991-1995 1996 1997 1998 1999 2000 2001 Total Erawan Sales (Mbbl) 9,494.31 12,607.63 16,550.49 3,038.82 3,510.26 3,514.71 3,517.01 3,112.66 3,260.08 58,605.96 Value (million baht) 6,625.16 5,632.17 7,457.98 1,481.77 2,167.87 1,957.43 2,239.08 3,372.94 3,348.09 34,282.49 Royalty (million baht) 828.17 688.84 932.25 185.22 270.98 244.68 279.87 421.62 418.51 4,270.14 Baanpot Sales (Mbbl) 1,005.31 2,106.17 727.86 126.03 310.72 211.68 183.59 131.38 83.96 4,802.74 Value (million baht) 693.72 920.18 426.28 64.66 184.57 112.15 129.38 141.84 86.43 2,672.78 Royalty (million baht) 86.71 113.21 53.28 8.08 23.07 14.01 16.17 17.73 10.80 332.26 Satun + South Satun Sales (Mbbl) 976.98 9,309.86 14,301.36 3,023.94 3,297.39 2,872.54 2,890.10 2,250.35 1,869.01 38,922.52 Value (million baht) 731.41 4,193.19 6,382.73 1,477.48 2,011.75 1,597.25 1,829.96 2,429.30 1,920.37 20,653.07 Royalty (million baht) 91.42 552.07 797.83 184.68 251.46 199.65 228.73 303.66 240.06 2,609.5 Platong + Kaphong Sales (Mbbl) 1,119.40 7,290.49 4,548.15 987.40 2,120.58 1,983.49 1,132.01 1,209.25 560.54 20,390.77 Value (million baht) 835.33 3,196.25 2,075.23 493.66 1,300.87 1,121.81 692.34 1,296.82 617.05 11,012.31 Royalty (million baht) 104.42 392.53 259.40 61.71 162.60 140.22 86.53 162.10 77.13 1,369.51 Funan Sales (Mbbl) 8,950.21 1,514.22 1,667.72 1,988.49 1,577.42 1,520.70 1,922.32 17,218.76 Value (million baht) 3,912.72 741.21 1,041.29 1,122.24 1,032.75 1,669.20 1,946.91 9,519.40 Royalty (million baht) 489.08 92.65 130.16 140.28 129.08 208.65 243.36 1,189.90 Jakrawan Sales (Mbbl) 362.64 271.80 784.64 785.02 785.09 769.19 491.70 3,758.38 Value (million baht) 148.31 137.66 483.21 445.50 515.38 830.22 623.79 2,560.27 Royalty (million baht) 18.53 17.21 60.40 55.68 64.41 103.78 77.97 320.01 Surat Sales (Mbbl) 979.75 133.02 104.75 169.73 194.49 18.64 0 1,600.38 Value (million baht) 412.12 64.14 63.92 95.37 124.19 17.06 0 776.81 Royalty (million baht) 51.52 8.02 7.98 11.92 15.79 2.13 0 97.36 Gomin Sales (Mbbl) 63.31 1,224.82 934.61 380.51 267.58 522.85 221.68 3,393.6 Value (million baht) 25.45 590.48 551.50 223.40 158.66 536.26 226.39 2,085.75 Royalty (million baht) 3.18 73.81 68.93 27.92 19.82 67.03 27.14 260.69 Pladang + Trat Sales (Mbbl) 528.64 659.33 1,242.91 1,291.11 2,430.88 Value (million baht) 263.31 506.34 1,298.76 1,319.19 2,068.41 Royalty (million baht) 32.91 19.82 162.34 164.90 258.53 Plamuk Sales (Mbbl) 27.82 92.97 25.58 0.90 146.36 Value (million baht) 19.10 74.54 25.96 0.93 119.60 Royalty (million baht) 2.38 9.31 3.25 0.12 14.94 Pailin Sales (Mbbl) 1,506.66 3,783.43 2,956.11 5,290.09 Value (million baht) 1,018.36 3,823.22 3,066.88 4,841.58 Royalty (million baht) 131.99 477.52 383.36 609.51 Bongkot Sales (Mbbl) 3,242.56 2,967.21 3,769.49 3,854.77 5,183.11 4,786.52 6,098.33 23,758.66 Value (million baht) 1,303.19 1,588.58 2,320.89 2,057.25 3,414.07 5,084.04 6,168.21 15,768.02 Royalty (million baht) 162.89 198.57 290.11 257.15 426.75 635.50 771.03 1,970.98 Total Sales (Mbbl) 12,595.99 31,314.14 49,726.33 13,287.26 16,500.16 16,317.40 17,989.36 19,373.47 18,755.73 195,859.83 Value (million baht) 8,885.63 13,941.79 22,144.01 6,639.63 10,125.87 9,014.81 11,772.68 20,525.62 19,324.23 122,374.27 Royalty (million baht) 1,110.72 1,746.65 2,767.98 829.95 1,265.69 1,126.80 1,471.73 2,565.32 2,414.37 15,299.21

12 Sales, Value and Royalty of Natural Gas

Petroleum Field 1981-1985 1986-1990 1991-1995 1996 1997 1998 1999 2000 2001 Total Erawan Sales (MMcf) 243,200.06 370,849.54 490,269.04 94,447.88 95,457.56 106,442.57 108,734.18 99,898.73 93,937.52 1,703,237.08 Value (million baht) 15,068.59 19,212.13 24,503.75 4,547.99 6,705.43 8,165.08 7,415.74 7,843.00 8,544.04 102,005.75 Royalty (million baht) 1,901.51 2,401.52 3,062.97 568.50 838.17 1,020.63 926.96 980.38 1,068.00 12,768.64 Baanpot + South Satun Sales (MMcf) 20,774.26 55,919.24 102,401.27 20,280.53 30,872.82 30,980.23 31,455.52 23,909.62 20,953.19 337,546.67 Value (million baht) 1,242.64 3,197.02 5,661.70 1,189.34 2,232.10 2,872.66 2,445.83 2,143.76 2,316.58 23,301.63 Royalty (million baht) 155.32 399.62 707.70 148.67 279.00 359.08 305.72 267.97 289.57 2,912.66 Satun + Pladang + Trat Sales (MMcf) 23,703.35 303,597.08 362,543.97 72,676.87 78,172.92 79,214.36 81,051.01 81,514.20 81,560.75 1,164,034.5 Value (million baht) 1,493.45 17,634.72 20,295.10 4,474.02 6,036.62 7,653.19 6,639.07 7,501.30 9,603.95 81,331.41 Royalty (million baht) 186.68 2,204.34 2,536.89 559.25 754.57 956.64 829.88 937.73 1,200.62 10,166.60 Platong + Kaphong + Surat + Plamuk Sales (MMcf) 21,077.65 140,296.14 116,867.86 25,329.75 49,488.27 43,880.49 28,545.42 27,208.55 18,535.33 471,229.47 Value (million baht) 1,238.57 7,921.98 6,124.60 1,381.45 3,341.66 3,782.69 2,023.46 2,206.68 1,963.01 29,984.10 Royalty (million baht) 154.82 990.25 765.57 172.68 417.70 472.82 252.57 275.83 245.38 3,747.63 Funan+ Jakrawan + Gomin Sales (MMcf) 220,760.26 74,646.77 92,325.23 98,095.05 94,310.60 89,568.55 84,443.97 754,150.43 Value (million baht) 13,246.47 4,360.78 6,646.54 8,922.67 6,915.45 611.15 9,365.72 57,068.77 Royalty (million baht) 1,655.80 545.10 830.81 1,115.32 864.42 951.39 1,170.71 7,133.56 Pailin Sales (MMcf) 19,032.40 62,656.62 55,849.49 137,538.51 Value (million baht) 1,566.88 5,762.35 6,289.26 13,618.49 Royalty (million baht) 195.86 720.29 786.16 1,702.31 Bongkot Sales (MMcf) 182,232.05 120,745.86 125,965.19 154,723.86 205,814.50 191,937.71 209,270.56 1,190,689.73 Value (million baht) 9,779.71 7,401.65 9,411.21 13,712.42 15,862.68 20,530.39 25,469.92 102,167.98 Royalty (million baht) 1,222.47 925.21 1,176.40 1,714.05 1,928.83 2,566.30 3,183.74 12,770.99 Sirikit + Sirikit West + Pru Krathiam Sales (MMcf) 11,860.54 40,795.77 63,074.80 14,641.87 14,663.50 13,905.90 14,287.12 16,154.10 15,622.88 205,006.48 Value (million baht) 474.36 1,363.99 2,501.57 638.11 814.82 917.73 821.06 1,422.03 1,195.08 10,148.75 Royalty (million baht) 59.29 170.50 312.69 79.76 110.85 114.71 102.63 177.75 149.39 1,277.58 Nam Phong Sales (MMcf) 26.46 106,470.39 23,490.80 28,601.02 31,941.19 33,013.41 26,061.74 22,015.22 271,620.23 Value (million baht) 0.86 3,981.42 1,201.91 1,976.41 2,030.98 2,507.09 2,804.23 2,300.04 16,802.94 Royalty (million baht) 0.11 497.68 150.24 247.05 253.87 313.38 350.53 287.50 2,100.36 Tantawan Sales (MMcf) 29,852.79 31,886.55 23,243.42 19,921.04 17,803.78 122,707.59 Value (million baht) 1,784.26 2,331.92 1,410.57 1,567.56 1,656.18 8,750.49 Royalty (million baht) 170.21 210.79 135.53 201.57 218.19 936.29 Benchamas + Maliwan Sales (MMcf) 10,495.62 32,871.94 40,877.04 84,244.60 Value (million baht) 834.14 3,123.02 4,390.67 8,359.04 Royalty (million baht) 90.18 404.37 579.13 1,075.22 Total Sales (MMcf) 320,615.86 911,484.22 1,644,619.64 446,260.33 545,399.30 591,070.19 649,983.20 671,702.79 660,869.74 6,442,005.27 Value (million baht) 19,517.61 49,330.70 86,094.32 25,195.25 38,949.05 50,389.34 48,441.97 62,515.47 73,105.66 453,539.35 Royalty (million baht) 2,457.62 6,166.34 10,761.77 3,149.41 4,824.76 6,217.91 5,999.96 7,834.13 9,179.92 56,591.82

13 Petroleum Balance

Oil Equivalent (OE) herein means Thai crude, which, In 2001 Thailand produced petroleum 429.7 on average, contains 9,098 kcal/litre. Based on MbpdOE, or nearly the same as of a 2000 total. This heating value, a barrel of OE is equivalent to: quantity equaled to 36% of procurement or 45% of ● 5,438 cubic feet of natural gas ● 1.048 barrels of import oil local consumption. The production fell into 75% ● 1.103 barrels of condensate or NGL natural gas (322 MbpdOE) and 25% liquid petroleum ● 1.431 barrels of LPG (108 MbpdOE). In term of liquid petroleum, the ● 1.210 barrels of gasoline output grew by 5%, especially crude oil rose up ● 1.103 barrels of aviation fuel or kerosene to 9%. On the contrary the gas fell down 1% owing ● 1.046 barrels of diesel ● 0.958 barrels of fuel oil to an upsurge of Myanmar gas. ● 0.925 barrels of bitumen Oil Imported in 2001 Imported crude oil increased by 6% to 680 MbpdOE. After Country Exporter Million liters % deducted by oil export, there were 643 MbpdOE to feed UAE 9,072 22.0 all five refineries and one splitter (with a combined Oman 7,942 19.2 capacity of 865 Mbpd). For decades, major source of Saudi Arabia 6,149 14.9 crude oil for Thailand has been the Middle East. In 2001, Yemen 4,582 11.1 Malaysia 3,677 8.9 the country imported oil from this region in increasing Brunei 2,977 7.2 rate (11% up) and proportion (4% up). The Middle East oil Kuwait 1,739 4.2 made up 77% to the import total, leaving 17% to the Far Iraq 608 1.5 East and 6% to others. Ranking by country, the UAE, Qatar 1,362 3.53 Oman, Saudi Arabia, Yemen and Malaysia remained the Australia 555 1.3 same top five country exporters to Thailand. Congo, Indonesia 505 1.2 Papua New Guinea, Ecuador and Ukraine were among Vietnam 372 0.9 new sources for imported oil. Congo (former Zaire) 324 0.8 Angola 302 0.7 Papua New Guinea 212 0.5 Net Oil Import Nigeria 157 0.4 2000 2001 Ecuador 145 0.4 Total import 643.51 679.96 Russia 140 0.3 China 84 0.2 Total export 27.46 36.50 Pakistan 33 0.1 Net import 616.05 643.46 Japan 29 0.1 Unit in MbpdOE Ukraine 27 0.1 Singapore 27 0.1 Total 41,329 100.0 Good news for Thailand, 2001 was the first year that domestic market could absorb all condensate produced 1 barrel = 158.99 liters in the country. But, bad news was the limited production Source: PTIT caused by a sole buyer. Its rate of production was reduced due to the reduction of PTTûs gas requirement. Deducted from petrochemical use, gas for fuelling in this year expanded more or less 7%. Especially for power generation, gas consumed by EGAT, IPP and SPP climbed to 372 MbpdOE or 13% higher. Roughly considering from processing figures, Condensate Sold Abroad Thailand refined petroleum products for Year 1997 1998 1999 2000 2001 own use 82% and exported the rest. % Total 52 52 27 10 0 Compared to 2000, the refined products were remarkably changed. LPG Thailand imported zero Mbpd of LPG for the second year in a row due to an oversupply of domestic production. Countryûs LPG production came from gas separation (48%), oil refinery (47%) and petrochemical plants (5%). Its local consumption increased by 12% as well as its export.

14 Gasoline All categories grew up. The import was little in quantity but large in increment. Main of gasoline production was used domestically and only 18% was sent outside the country. Kerosene On the contrary, 67% of its domestic produced kerosene was shipped out. Jet Fuel Local refineries produced jet fuel in decreasing rate but still sufficed domestically. Its export was, therefore, reduced by 40%. Diesel Diesel which is the most of refined petroleum has been used in Thailand. The import reduced by half but the domestic production rosed by 4% due to internal growing market (2% up). On the other hand, the export slipped down around 1%. Fuel Oil Faded away from power market in Thailand, fuel oil procurement was lessened by 16% while fall of domestic consumption reached at 29%. This pushed the export up exceedingly 100%. Bitumen All categories went up except imported bitumen. In attempt of developing national petroleum resource, Thailand has gotten a sensible success.

Refined Products Item Import Production Consumption Export 2000 2001 2000 2001 2000 2001 2000 2001 LPG 0.0 0.0 87.9 101.4 67.1 76.4 21.3 24.2 Gasoline 0.5 2.5 138.0 143.3 116.2 118.2 21.2 25.5 Kerosene 0.0 0.0 8.4 10.1 0.8 1.0 6.7 6.8 Jet Fuel 0.1 0.1 74.4 71.4 60.0 64.0 14.0 8.4 Diesel 11.1 5.5 276.2 286.5 257.4 262.3 28.8 28.4 Fuel Oil 10.7 0.0 119.9 110.1 109.5 78.1 13.2 26.5 Bitumen 0.1 0.0 16.9 19.4 13.3 14.7 3.9 5.0 Unit in Mbpd

For the last five year, its own petroleum could have substituted for country demand in progressive rate. If constraint posed by Myanmar gas is lifted, the widen market will trigger the production fully potential.

Domestic Petroleum Substitution 1997 1998 1999 2000 2001 Domestic Production 333.6 350.9 385.6 429.1 429.7 Local Consumption 897.0 840.2 863.6 940.3 952.6 % Substitution 37.2 41.8 44.7 45.6 45.1 Unit in MbpdOE

15 16 THAILANDûS PETROLEUM BALANCES (January-December 2001)

P R O C U R E M E N T PROCESSING LOCAL CONSUMPTION/EXPORT

Crude Oil 2000 2001 Five Refineries and one Condensate - Middle East 471.18 521.76 Splitter with Combined Capacity of Refined Products Consumption Export - Far East 127.10 114.31 865,000 barrels per day Products 2000 2001 2000 2001 - Others 45.23 43.89 Products 2000 2001 - LPG 46.89 53.39 14.88 16.91 Subtotal 643.51 679.96 - LPG 27.81 32.98 - Gasoline 96.03 97.69 17.52 20.83 - Gasoline 114.05 118.43 - Kerosene 0.73 0.91 0.07 6.17 Natural Gas 1.19 86.30 - Kerosene 7.62 9.16 - Jet Fuel 54.40 58.02 12.69 7.62 - Jet Fuel 67.45 64.73 - Diesel 246.08 250.76 27.53 27.15 Refined Products 2000 2001 - Diesel 264.05 273.90 - Fuel Oil 114.30 81.52 13.78 27.66

Import - Gasoline 0.41 2.07 - Fuel Oil 125.16 114.93 - Others 14.38 15.89 4.22 5.41 - Jet fuel 0.09 0.09 - Others 18.27 20.97 Subtotal 572.81 558.18 96.69 111.75 - Diesel 10.61 5.26 Subtotal 624.41 635.10 - Fuel Oil 11.17 0.00 - Others 0.11 0.00 Natural Gas Consumption Subtotal 22.39 7.43 Consumer 2000 2001 Five Gas Separation Plants with - EGAT 269.10 193.20 Total Import 754.02 773.69 Combined Capacity of 1,225 MMcfd - SPP+IPP 71.40 22.90 Products 2000 2001 - Industries 27.10 178.30 - Sales Gas 154.40 159.70 Subtotal 367.50 394.40 Crude Oil 2000 2001 - LPG 31.17 34.24 - For Local 28.64 24.70 - NGL 5.08 6.17 - For Export 27.46 36.50 Subtotal 190.65 200.11 Crude for Export Subtotal 56.10 61.20 27.46 36.50 Condensate 2000 2001 - For Local 42.34 46.84 Condensate for Export - For Export 4.44 0.00 4.44 0.00 Indigenous Subtotal 46.69 46.87 Petrochemical Plants Natural Gas 326.30 321.60 LPG 2.45 3.63 Total Indigenous 429.09 429.67

Total 940.31 952.58 128.59 148.25 TOTAL 1,133.24 1,203.36 Petroleum Concessions

Progress in the Latest Bidding Round The Announcement of the 18th Bidding Round issued by the Ministry of Industry on 11 July 2000. Invitation letters were later distributed to petroleum companies worldwide to apply for rights to explore and produce petroleum in any of 87 exploration blocks throughout Thailand. This Round has extra practices than normal as follows: 1. The applicants can submit the applications within 3 years from the date of the Announcement (11 July 2000-11 July 2003). 2. Round of submission will last on 15th of every month. In 2000, 5 oil companies submitted their applications as follows: 1. Thai Shell applied for 4 onshore blocks: L10/43, L11/43, L21/43 and L22/43, around its production and reserve areas. 2. Harrods Energy applied for G4/43 in the Gulf of Thailand. 3. CNPC (Hong Kong) Limited applied for L21/43, next to Sino-U.S. production area. 4. Pacific Tiger applied for L44/43, the block enclosing its production areas 5. Chevron applied for G4/43, the block next to western border of its production areas. By the consent of Petroleum Committee 4 blocks tended to be awarded as: ● L22/43 to Thai Shell. ● L21/43 to CNPC. ● L44/43 to Pacific Tiger. ● G4/43 to Chevron. In 2001, all these qualified applications were waiting for final consideration by the Minister of Industry. Little Change in Concession Little change in holding concessions in 2001, neither farm-in nor farm-out occurred. No new concession awarded. 3 concessionaires informed to change their names: ● Total Exploration and Production Thailand changed to TotalFinaElf E&P Thailand on 21 March 2001. ● Santa Fe Energy Resources (Thailand) changed to Devon Energy (Thailand) Ltd. on 10 May 2001. ● Esso Exploration and Production Khorat Inc. changed to ExxonMobil Exploration and Production Khorat Inc. on 3 September 2001.

17 New Production Licensed Areas (PLA) Until 2000 year-end, 108 areas with the total of 5,263.76 sq km for producing petroleum were already licensed. In 2001, 7 PLA were applied for licenses, only 2 of them, in the Gulf of Thailand, were awarded: Bussabong of Harrods Energy and Ton Sak of PTTEP.

PLA as of 2000 Location Number of PLA Sq Km Onshore 25 159.66 Gulf of Thailand 83 5,104.10

Harrods planned to invest US$201 million in order to develop Bussabong field. The amount of which enabled to produce natural gas and condensate for 10 years. If the negotiation is successful, the produced petroleum will be processed via Bongkotûs Central Processing Platform before selling. The company envisaged to produce natural gas at a maximum rate of 70 MMscfd via 3 production platforms with 25 production wells.

Production Licensed Area Name Block Sq Km Date of Endorsement Bussabong B12/32 121.92 6 February 2001 Ton Sak B15 187.09 6 February 2001

From Ton Sak field, PTTEP will put US$ 346 million to produce natural gas and condensate within 17 years. The company planned to produce gas at a peak rate of 200 MMscfd from 2 production platforms with 24 production wells. Jasmine in B5/27, Wichian Buri Licence II in SW1A, Pikul in B13/38, Greater Funan in B12/B13 and West Yala in B10 were waiting for approval.

18 Thailand Onshore Petroleum Concession Map (as of January 2002) Thailand Onshore Petroleum

19 Petroleum Concessionaires in Thailand (as of December 31, 2001)

Concess. No. Concessionaire (s) Share Block Concession area (sq. km) Date of Issue (as of December 31, 2001) (%) Exploration Production Reserves Gulf of Thailand

1 / 2514 Amoco Thailand Petroleum Co. (Operator) 50.00 B5 4,645.00 - - 26 Nov 71 Idemitsu Oil Development Co., Ltd. 50.00 B6 5,510.00 - - 1/2515/5 Gas Sale Agreement No.2 (Unit Area I) 1 Mar 72 Unocal Thailand, Ltd. (Operator) 70.00 B10 - 171.63 743.8824 Mitsui Oil Exploration Co., Ltd. 30.00 B11 - 213.02 977.6055 Gas Sale Agreement No.2 (Supplementary) (Unit Area II) Unocal Thailand, Ltd. (Operator) 71.25 Mitsui Oil Exploration Co., Ltd. 23.75 PTT Exploration and Production Public Co., Ltd. 5.00 Thailand-Cambodia Overlapping Area Unocal Thailand, Ltd. (Operator) 60.00 B10 1,382.90 - - Mitsui Oil Exploration Co., Ltd. 40.00 B11 1,401.49 - - 17 Dec 97 Unocal Thailand, Ltd. (Operator) 60.00 B10A 166.00 - - Sup.No 9 Mitsui Oil Exploration Co., Ltd. 40.00 B11A 88.00 - - 2/2515/6 Gas Sale Agreement No.1 1 Mar 72 Unocal Thailand, Ltd. (Operator) 80.00 B12 - 650.63 623.53 Mitsui Oil Exploration Co., Ltd. 20.00 B13 - 292.88 896.375 Gas Sale Agreement No.2 (Unit Area I) Unocal Thailand, Ltd. (Operator) 70.00 Mitsui Oil Exploration Co., Ltd. 30.00 Gas Sale Agreement No.2 (Supplementary) (unit Area II) Unocal Thailand, Ltd. (Operator) 71.25 Mitsui Oil Exploration Co., Ltd. 23.75 PTT Exploration and Production Public Co., Ltd. 5.00 8 Jun 99 Thailand-Cambodia Overlapping Area Sup.No 6 Unocal Thailand, Ltd. (Operator) 80.00 B12(A) 294.00 - - Mitsui Oil Exploration Co., Ltd. 20.00 B12(B) 125.00 - - B13 471.00 - - 3/2515/7 PTT Exploration and Production Public Co., Ltd. (Operator) 44.45 B16 - 421.66 981.45 8 Mar 72 TotalFinaElf E&P Thailand 33.33 B17 - 105.00 413.38 British Gas Thailand PTE Ltd. 22.22 1 June 98 PTT Exploration and Production Public Co., Ltd. (Operator) 80.00 B16A 719.00 - - Unocal Thailand, Ltd. 16.00 Moeco Thailand Co.,Ltd. 4.00 4/2515/8 Thailand-Cambodia Overlapping Area 9 Mar 72 British Gas Asia Inc. (Operator) 50.00 B7 4,760.00 - - Chevron Overseas Petroleum Thailand Ltd. 33.33 B8 3,400.00 - - Petroleum Resources (Thailand) Pty., Ltd. 16.67 B9 2,260.00 - - 5/2515/9 PTT Exploration and Production Public Co.,Ltd. (Operator) 44.45 B15 - 254.00 1,025.00 10 Mar 72 TotalFinaElf E&P Thailand 33.33 British Gas Thailand PTE Ltd. 22.22 1 June 98 PTT Exploration and Production Public Co., Ltd. (Operator) 80.00 B14A 1,887.00 - - Unocal Thailand, Ltd. 16.00 Moeco Thailand Co.,Ltd. 4.00 1 June 98 PTT Exploration and Production Public Co., Ltd.(Operator) 80.00 B15A 1,460.00 - - Unocal Thailand, Ltd. 16.00 Moeco Thailand Co., Ltd. 4.00 3/2528/28 Thai Shell Exploration and Production Co., Ltd. 100.00 B6/27 - 4.00 1,302.60 6 Feb 85 1/2529/33 Unocal Thailand, Ltd. (Operator) 35.00 B12/27 - 1,429.73 1,687.71 15 Jan 86 PTT Exploration and Production Public Co.,Ltd. 45.00 Amerada Hess (Thailand) Co., Ltd. 15.00 MOECO Thai Oil Development Co.,Ltd. 5.00 1/2532/35 Harrods Energy (Thailand) Ltd. 100.00 B5/27 3,768.72 - - 9 Aug 89 1/2534/36 Chevron Offshore (Thailand) Ltd. (Operator) 31 2/3 B8/32 - 1,282.85 1,330.92 1 Aug 91 Thaipo Ltd. 31 2/3 B 8/32 Partners Ltd. 31 2/3 Palang Sophon Limited 5.00 Tantawan Production Area Chevron Offshore (Thailand) Ltd. (Operator) 46.34 B8/32 - 274.70 - Thaipo Ltd. 46.34 Palang Sophon Limited 7.32 6/2534/41 Unocal Petroleum, Ltd. (Operator) 80.00 B10/32 - 5.06 252.2864 11 Sep 91 Mitsui Oil Exploration Co., Ltd. 20.00 1/2535/45 Harrods Energy (Thailand) Ltd. (Operator) 74.07 B12/32 2,837.00 12 Mar 92 Songkhla Resources Ltd. 25.93 2/2539/49 PTTEP International Ltd. (Operator) 44.4522 B13/38 324.00 - - 27 Jun 96 TotalFinaElf E&P Thailand 33.33 Thai Energy Co., Ltd. 22.22 3/2539/50 Soco Exploration (Thailand) Co., Ltd.(Operator) 50.00 B8/38 4,788.80 - - 24 Oct 96 MMC Exploration and Production (Thailand) Ltd. 50.00 4/2539/51 Harrods Energy (Thailand) Ltd. 100.00 B11/38 2,165.00 - - 28 Oct 96

20 Petroleum Concessionaires in Thailand (as of December 31, 2001)

Concess. No. Concessionaire (s) Share Block Concession area (sq. km) Date of Issue (as of December 31, 2001) (%) Exploration Production Reserves Gulf of Thailand 2/2541/56 Harrods Energy (Thailand) Ltd. 100.00 B2/38 4,315.00 - - 11 Sep 98 1/2542/57 Devon Energy (Thailand) Ltd. 100.00 B7/38 9,238.00 - - 03 Mar 99 Andaman Sea 1/2541/55 Kerr-Mcgee (Thailand) Ltd. (Operator) 85.00 W7/38 19,675.00 - - 20 Mar 98 PTTEP International Ltd. 15.00 Onshore 1/2522/16 Thai Shell Exploration and Production Co., Ltd. (Operator) 75.00 S1 - 99.17 1,227.04 15 Mar 79 PTT Exploration and Production Public Co., Ltd. 25.00 2/2522/17 Namphong Area 16 Mar 79 ExxonMobil Exploration and Production Khorat Inc. (Operator) 80.0000 E5 - 34.40 34.54 PTT Exploration and Production Public Co., Ltd. 20.00 Outside Namphong Area Amerada Hess (Thailand) Co., Ltd. (Operator) 80.0000 E5 - - 39.31 PTT Exploration and Production Public Co., Ltd. 20.00 1/2524/19 Amerada Hess (Thailand) Co., Ltd. 100.00 EU1 - 1.96 190.93 3 Jun 81 1/2526/23 Sino-U.S. Petroleum Inc. (Operator) 33.33 NC - 11.244 - 12 Apr 83 Combined Oil and Gas (Thailand) Inc. 33.33 Thai Energy Resources Ltd. 16.67 Sino Thai Energy Ltd. 16.67 1/2527/24 Pacific Tiger Energy (Thailand) Ltd. 100.00 SW1A - 5.82 33.87 24 Jul 84 2/2528/27 PTTEP International Ltd. 100.00 PTTEP1 - 7.06 3.10 5 Feb 85 7/2539/54 Forest Oil International (Thailand) Ltd. 100.00 5441/38 959.00 - - 15 NOV 96

Joint Development Area (MTJA) 1. CTOC Block A-18 2. CPOC Block B-17, C-19

Total Petroleum Concessions In Thailand (as of September 12, 2001) Area Concessions Blocks Gulf of Thailand 17 24 Onshore 7 7 Andaman Sea 1 1 Total 25 32

Total Concession Area (Square Kilometer) Exploration Production Reserve Onshore 959.00 159.65 1,528.79 Gulf of Thailand 56,005.91 5,105.16 10,234.74 Andaman Sea 19,675.00 - - Total 76,639.91 5,264.81 11,763.53

21 Thailand Offshore Petroleum Concession Map (as of January 2002) Thailand Offshore Petroleum

22 Granted Petroleum Production Areas in Thailand (as of January 24, 2002)

Operator Production Area Name Issued Area Issued Concession No. No. Block (sq. km) Date Offshore (Gulf of Thailand) PTT E&P Public Co., Ltd. 3/2515/7 1 Bongkot 16B 280.0000 18 Mar 83 2 Bongkot 16E B16 40.0000 17 May 83 3 Bai Bua - 1 101.6590 16 Sep 97 4 Bongkot 17E B17 105.0000 17 May 83 PTT E&P Public Co., Ltd. 5/2515/9 5 Bongkot 15B B15 254.0000 16 Aug 82 6Tonsak 187.0900 06 Feb 01 Chevron 1/2534/36 7 Tantawan 274.6670 23 Aug 95 8 Benchamas&Pakrakrong B8/32 411.1500 16 Jun 97 9 Maliwan 368.5000 03 Nov 97 10 North Jarmjuree 503.2000 02 Nov 00 Thai Shell E&P Co., Ltd. 3/2528/28 11 Nang Nuan A02 B6/27 2.0000 24 Nov 87 12 Nang Nuan B01 2.0000 10 Feb 93 Unocal Thailand, Ltd. 1/2515/5 13 Platong Area 1 49.4800 29 Oct 82 14 Kaphong Area 2 32.8000 24 Oct 83 15 Platong Area 0.2500 4 Dec 84 16 Kaphong Area 2-Extension 17.0000 17 May 89 17 Surat Area 3 7.5800 8 Apr 91 18 Platong F Platform B10 1.7540 22 Apr 94 19 Surat Area 5 1.9920 27 May 94 20 Plamuk Area 6 50.0710 15 Sep 97 21 Platong H Platform Area 7 7.1370 3 Nov 97 22 Kaphong A Platform Area 8 3.3868 3 Mar 98 23 North Pladang Area 2 2.0000 29 Oct 82 24 Pladang Area 3 40.2400 29 Oct 82 25 Satun Area 1 3.2200 29 Oct 82 26 Platong Area 2 11.0900 29 Oct 82 27 Trat Area 5 2.0000 11 Jan 83 28 Pakarang Area 6 2.0000 11 Jan 83 29 Platong Area 2-Extension 1.7500 4 Dec 84 30 Satun Area 1-Extension B11 20.5300 27 Dec 84 31 Platong Area 7 9.7030 25 Dec 87 32 North Satun 20.2380 30 Mar 92 33 Platong F Platform 6.0260 22 Apr 94 34 Pladang A & PDD-2 Area 10 18.7600 23 Jun 97 35 Plamuk Area 11 9.7270 15 Sep 97 36 Platong E Area 11 0.6740 3 Mar 99 37 Trat Area 13 65.2198 26 Jul 99 Unocal Thailand, Ltd. 2/2515/6 38 Erawan Area 1 109.1600 26 Dec 79 39 Erawan Area 2 31.6700 24 Feb 81 40 Satun Area 3 53.9800 29 Oct 82 41 Erawan Area 1-2-Extension 17.9600 3 May 84 42 Erawan Area 1-Extension 15.2100 3 May 84 43 Satun Area 3-Extension (1) 16.2800 27 Dec 84 44 Satun Area 3-Extension (2) 22.0500 27 Dec 84 45 Erawan Area-Extension (1) 57.6000 29 Apr 85 46 Erawan Area 1-Extension (M) 10.5600 11 Apr 88 47 Erawan Area 1-Extension (N) 4.0000 13 Oct 88 48 Jakrawan Area 4 B12 3.2300 15 Nov 89 49 Satun Area 5 10.3500 18 May 90 50 Erawan Area 1-Extension (P) 2.3200 9 Aug 90 51 Satun Area 6 18.5900 29 Oct 90 52 Erawan Area 1-Extension (R & Q) 25.5030 3 Nov 93 53 Funan G 2.7450 4 Oct 94 54 Erawan S & T Platforms 30.8890 22 Nov 94 55 Jakrawan B, C & D 50.0770 3 Apr 96 56 Satun L Platform Area 10 23.4323 24 Feb 97 57 Jakrawan E & I Area 11 5.5721 23 Sep 97 58 Jakrawan F & H Area 12 8.7485 23 Sep 97 59 East Dara Area 13 129.7000 06 Dec 00

23 Operator Production Area Name Issued Area Issued Concession No. No. Block (sq. km) Date Unocal Thailand, Ltd. 2/2515/6 60 Erawan Area 1 5.4200 26 Dec 79 61 Baanpot Area 2 35.4300 29 Oct 82 62 Funan Area 4 2.0000 11 Jan 83 63 Baanpot Area 3 7.9900 14 Dec 83 64 Erawan Area 1-N-Extension 7.3200 29 Apr 85 65 Erawan Area 1-Extension (s) 1.6900 3 Oct 86 66 Baanpot Area 5 2.5360 20 Aug 87 67 Baanpot Area 5-Extension B13 11.0000 26 Feb 88 68 Jakrawan Area 3 12.7100 15 Nov 89 69 Funan Area 4-Addition 99.0610 28 Aug 91 70 Jakrawan Area 6 1.9380 6 Oct 93 71 Funan G 6.3000 10 Apr 94 72 Gomin A & B Area 8 20.1090 7 Oct 95 73 Funan H & I 23.0110 22 Apr 96 74 Jakrawan E & I Area 10 9.4498 23 Sep 97 75 Jakrawan F & H Area 11 5.9641 23 Sep 97 76 Funan J Platform (Area 12) 11.3900 26 Apr 00 77 Funan B & H Infill Platform 9.6600 02 Nov 00 78 Funan K Area 14 19.9000 02 Nov 00 Unocal Petroleum, Ltd. 5/2534/41 79 West Dara B 10/32 5.0600 06 Dec 00 Unocal Thailand, Ltd. 1/2529/33 80 Main Pailin Area 1 B12/27 452.6200 05 Jan 94 81 North Pailin Area 2 325.4930 03 Nov 97 82 South Pailin Area 3 118.6290 27 Aug 98 83 West Pailin Area 4 149.8510 27 Aug 98 84 Moragot Area 5 383.1400 27 Aug 98 Harrods Energy (Thailand) Ltd. 1/0535/45 85 Bussabong B12/32 121.9200 06 Feb 01 Onshore ESSO E&P Khorat Inc. 2/2522/17 1 Nam Phong E5 34.4000 5 Feb 88 Amerada Hess (Thailand) Co.Ltd. 1/2524/19 2 Phu Horm-1 EU1 1.9600 15 May 89 Pacific Tiger Energy (Thailand) Ltd. 1/2527/24 3 Wichian Buri SW1A 2.0000 24 Jan 92 4 Na Sanun 1.9720 12 May 95 5 Si Thep 1.8480 13 May 97 PTT E&P Public Co., Ltd. 2/2538/27 6 U-Thong PTTEP 1 5.0600 10 Aug 90 7 Kamphaeng Saen 2.0000 10 Aug 90 Sino-U.S. Petroleum Inc. 1/2526/23 8 Bung Ya Structure 5.4189 15 Jan 91 9 Bung Muang-2 1.9970 5 Jan 94 10 Bung Muang & Bung Ya Area I NC 0.9100 7 Dec 96 11 Bung Muang & Bung Ya Area II 2.0020 12 Jul 96 12 Bung Muang & Bung Ya Area III 0.9160 12 Jul 96 Thai Shell E&P Co., Ltd. 1/2522/16 13 Sirikit 25.0000 11 Jan 83 14 Sirikit F01 10.7000 13 May 83 15 Sirikit South 14.7500 20 Aug 84 16 Sirikit West 2.9120 9 Oct 84 17 Pru Krathiam 16.1172 15 Dec 86 18 Wat Taen 2.0000 4 Mar 88 19 Thap Rat S1 1.9490 27 Jan 89 20 Nong Tum 1.9733 23 Feb 90 21 Pratu Tao 1.9954 24 Mar 89 22 Sirikit East 1.9300 10 Feb 93 23 Nong Makhaam E 1.8600 10 Apr 93 24 Sirikit T 2.4960 27 Aug 98 25 Nong Makhaam 15.4920 19 Oct 99

Source : Petroleum Assessment and Development Section, Mineral Fuels Division, DMR.

24 Petroleum Exploration

Seismic Survey Only conducted 3D seismic surveys with a total of 827.82 sq km: 510.93 sq km on shore and 316.89 sq km offshore. Thai Shell hired CGG to complete 510.93 sq km of 3D seismic survey in S1. The survey was conducted to acquire data on the area from the north to the east of Sirikit oilfield (ABC area). Also high-resolution 3D seismic was surveyed to detect possible shallow layers of oil sand in Pru Krathiam D. Santa Fe had CGG to proceed 3D seismic acquisition in B7/38, the Gulf of Thailand.

3D seismic Survey in 2001 Operator Block Duration Area Sq km Thai Shell S1 24 January-27 June Sirikit ABC 394.30 Pru Krathiam D 116.63 Santa Fe B7/38 17 February-18 March Khun Thong and Katiya structures 316.89

Exploration Drilling Altogether 43 exploratory and delineation wells were spuded in 2001, 4 wells fewer than the previous year. Hydrocarbon was encountered in 41 wells; 2 of which were dry. All the discovered wells belonged to PTTEP (13), Unocal (12), Chevron (11), Thai Shell (3), PTTEPI (1) and Pacific Tiger (1). Exploration Drilling in 2001 PTTEP resumed its drilling campaign in the most promising Operator Block Well area, B14A, B15A and B16A. Back to back drilling from Onshore 5 late 1999 to early 2000 of this area resulted in best wish. Pacific Tiger SW1A 1 In 2001, the company drilled 14 wells, 4 wells more than PTTEPI PTTEP1 1 planned. The first well of the 2nd drilling campaign, Thai Shell S1 3 Arthit-16-2X was spudded on 30 May 2001 and the last one, Offshore 38 Arthit-14-5ST was completed in early of the following Chevron B8/32 11 year. Up to 13 wells gave, more or less, the same success. At least 10 new more prospects were proved to be B14A 6 commercial value. Each well passed through numerous PTTEP B15A 6 gas bearing layers. TST (Tubing Stem Test) of 10 wells B16A 2 yielded gas 205.3 MMscfd and condensate 6,002 bpd, Thai Shell B6/27 1 totally. B10A 1 B10/32 1 TST Combined Flow Rate of PTTEP Wells Unocal B12 2 Net Pay Gas Condensate B12/27 7 Well Name (m) (MMscfd) (bpd) B13 1 Arthit-14-1X 41.8 31.7 760 Total 43 Arthit-14-3X 50.7 53.4 222 Arthit-14-4 35.4 11.6 67 Arthit-14-5 57.0 No test No test Arthit-14-5ST 62.0 6.8 2,826 Arthit-14-6X 14.0 23.8 278 Arthit-15-1S 63.0 No test No test Arthit-15-7A 94.5 29.6 690 Arthit-15-7B 83.0 No test No test Arthit-15-8 27.0 0.5 No test Arthit-15-9 65.0 18.6 393 Arthit-15-10 10.0 No test No test Arthit-16-2X 51.7 14.2 472 Arthit-16-3X 84.6 15.1 294 25 Further effort to seek more petroleum reserves was carried on. Unocal put 12 appraisal wells in 5 fields: 7 in Pailin and one each in Erawan, West Dara, Gomin, Satun and East Yala in 10A. All wells discovered petroleum and proved the farther extension of field boundary. Especially in 2 remarkable wells, Pailin-39 and Erawan 12-47, encountered thicker sands and larger drainage areas enabling enhance well reserve. 10A-3 proved commercial potential in the east flank of Yala graben complex by 3 separate SRFT (Slimhole Repeat Formation Tester).

Chevron added 11 wells to delineate 3 fields, Benchamas, Jarmjuree and Chaba (former Kung). The outcome drew nearly 100% success. One well in Benchamas encountered commercial oil and gas; the other found trace. All 6 wells in Jarmjuree field proved oil and gas and also 3 wells (Kung-6, Kung- 7 and Chaba-1) in Chaba field did the same.

Thai Shell placed 3 wells in S1 and one well in B6/27 in the Gulf. The company report one success oil well, Wat Taen-B01, and 2 oil traces in the late tested structure, Nong Ooh-A01 and Nong Ooh- A02. The offshore well, Nang Nuan-B02, was unfortunately dry.

Pacific Tiger drilled an appraisal well in the north portion of Wichian Buri field, SW1A with the luck of oil.

Before the end of 5-year term of reserving area in PTTEP1, PTTEPI drilled one exploratory well, Sang Kajai-1 in an untested three-way dip closure. The well located to the north of U-Thong field. By the end of the year the driller was busy to fish for stuck pipes.

New Statistics Pailin-39 of North Pailin drilled by Unocal Thailand gave new records for the area. Gas reserve estimation by volumetric method was high as 36.6 Bcf versus 6.5 Bcf pre-drill. Combined net pay of sand layers was found 354 feet as thick, doubled of the forecasted. Moreover, the drainage area was found as large as 442 acres, compared to the average of 150 acres in the vicinity.

Similarly to Erawan 12-47, estimation before drilling was much less than actuality, 22.4 Bcf of gas reserve, 413 acres of drainage area. The pre-drilled figures were 4.3 Bcf and 60 acres, the average of Erawan K.

26 Exploration Wells Drilled in 2001 Operator Block Well Name Duration TD (m) Result Onshore

Pacific Tiger SW1A Wichian Buri North-1 19 Mar-30 Apr 01 1007.00 Oil PTTEP International PTTEP1 Sang Krajai-1X 12Dec 01-25Feb02 1902.00 Oil Thai Shell S1 Wat Taen-B01 26 Jun-3 Jul 01 2881.00 Oil Nong Ooh-A01 5-11 Jul 01 2762.00 Oil Trace Nong Ooh-A02 12-20 Jul 01 3174.00 Oil Trace Gulf of Thailand Chevron B8/32 Benchamas-24 7-14 Mar 01 2715.20 Oil & Gas Benchamas-25 15-21 Mar 01 2202.50 Oil & Gas Chaba-1 27-31 May 01 2711.20 Oil & Gas Jarmjuree South-1 21 Mar-6 Apr 01 3788.70 Oil & Gas Jarmjuree South-2 6-19 Apr 01 3803.90 Oil & Gas Jarmjuree South-3 28 Apr-10 May 01 3935.00 Oil & Gas Jarmjuree South-4 11-21 May 01 3840.50 Oil & Gas Jarmjuree-7 20-28 Apr 01 3452.50 Oil & Gas Jarmjuree-8 18 Sept-1 Oct 01 3196.00 Oil & Gas Kung-6 13-26 Feb 01 2869.00 Oil Kung-7 27 Feb-5 Mar 01 2814.80 Oil & Gas PTTEP B14A Arthit-14-1X 27 Jul-19 Aug 01 3332.00 Gas Arthit-14-2X 19-26 Aug 01 2557.00 Dry Arthit-14-3X 27 Aug-8 Sept 01 2859.50 Gas Arthit-14-4 22 Oct-6 Nov 01 3542.00 Gas Arthit-14-5 5-18 Dec 01 3966.00 Gas Arthit-14-5ST 19 Dec 01-5 Jan 02 3790.00 Gas B15A Arthit-15-1S 7-15 Nov 01 2590.00 Gas Arthit-15-7A 18 Sept-6 Oct 01 3562.00 Gas Arthit-15-7B 9-18 Sept 01 3190.00 Gas Arthit-15-8 7-21 Oct 01 3050.00 Gas Arthit-15-9 16-26 Nov 01 3240.00 Gas Arthit-15-10 26 Nov-4 Dec 01 3100.00 Gas B16A Arthit-16-2X 30 May-24 Jun 01 3540.00 Gas Arthit-16-3X 26 Jun-25 Jul 01 3170.00 Gas Thai Shell B6/27 Nang Nuan-B02 3Apr-22 May 01 3850.00 Dry Unocal B10A 10A-3 22 Oct-6 Nov 01 3706.37 Gas & Oil B12 Erawan 12-47 18 Sept-2 Oct 01 3550.00 Gas Satun-30 9-17 Dec 01 3302.81 Gas B13 Gomin-6 7-17 Oct 01 3268.98 Gas B12/27 Pailin-33 15-24 Feb 01 3859.99 Gas Pailin-34 26 Feb-8 Mar 01 3838.35 Gas Pailin-35 15-29 Mar 01 3619.50 Gas Pailin-36 25 Jan-3 Feb 01 3675.89 Gas Pailin-37 11-22 Jan 01 3760.01 Gas Pailin-38 5-12 Feb 01 3288.79 Gas Pailin-39 31 Mar-9 Apr 01 3779.52 Gas B10/32 West Dara-3 12-21 Apr 01 3102.25 Gas

27 Field Development

Field development is the key to production. The more petroleum is to produce, the more budget is to invest. Billions of dollars was put in 2001 for preparation to boost or to maintain petroleum production in the future. Development Wells In 2001, additional of 155 development wells and 5 injection wells were placed on 18 producing fields. 2001 Additional Wells In S1, Thai Shell added 27 more development wells and for Field Development 5 injectors in Sirikit, Nong Makhaam, Nong Tum, and Development Injection Field Wells Wells Thap Raet. One well more was in Nang Nuan-B, B6/27. Wichian Buri 1 0 Sino-U.S. sunk another 4 wells in Bung Muang, NC. Bung Muang 4 0 Sirikit 20 2 Pacific Tiger completed one well in Wichian Buri, Nong Makhaam 5 0 SW1A. Nong Tum 1 0 Thap Raet 1 3 Unocal Thailand placed 84 more wells on Erawan (B12- Nang Nuan-B 1 0 B13), Jakrawan (B12), Funan (B13), Yala and Plamuk Tantawan 2 0 Benchamas 14 0 (B10), Pailin and North Pailin (B12/27). Maliwan 1 0 Chevron had 17 more wells in Tantawan, Benchamas Bongkot 21 0 Erawan 25 0 and Maliwan (B8/32) to boost its oil rate. Yala 14 0 Pailin 15 0 Last but not least, PTTEP maintained its gas rate with North Pailin 3 0 21 more wells in Bongkot, B15-B16. Funan 13 0 Plamuk 8 0 Jakrawan 6 0 New Production Fields in Plan Total 155 5 As of spud date Chevron planned to put North Jarmjuree field in B8/32 on stream. The production license of the area covering 503 sq km has been granted for 30 years since October 2000. Development of the field was expected to cost about US$ 200 million for 8 offshore platforms and 60 wells. The field was scheduled to start-up in early 2003 at an initial rate of 50 MMscfd, ramping up to 190 MMscfd in 2005. Pailin Phase II in Progress As operator of B12/27, Unocal Thailand was advancing in construction of production facilities. Fabrication of CPP and LQ was contracted to McDermott in Batam, Indonesia. The phase was scheduled to start producing gas and condensate from North Pailin on 1 July 2002. This development project would cost around US$ 290 million. Eight More Platforms in the Gulf Chevron installed the ninth wellhead platform of B8/32 in Maliwan field. Unocal Thailand was installing 3 wellhead platforms (A-C) New Wellhead Platform in 2001 in North Pailin and expected to finish early of 2002. The company also planned to complete CPP and LQ in Operator Block Platform mid January 2002, and start producing gas 330 MMcfd in Chevron B8/32 MWA combination with Pailin field in July 2002. The company PTTEP B14-B15 WP11, WP12 Plamuk B also installed Plamuk B and Yala B platforms in B10 by B10 August 2001. Unocal Yala B B12/27 North Pailin A-C

28 PTTEP progressed its Phase IIIB in Bongkot field with 2 new wellhead platforms (WP11, WP12) and associated sealines by June 2001. This phase started from August 2000 and would last 2.5 years. Two new wellhead platforms and 42 wells would be placed to maintain 635 MMscfd through an estimated budget of US$ 78 million. In August 2001 PTTEP planned to start Phase IIIC of Bongkot development. Initial cost of US$ 40-50 million could sustain production at the same level. The phase called for installation of a wellhead platform and a gas processor to treat sour gas. PTTEP started its Phase IIID in October 2001. The project aimed to install newest platform (WP14) within 16 months. The platform was scheduled to be ready for drilling at latest on 1 February 2003. Production Test Flow Thai Shell came back to renew Nang Nuan-B, its well-known oil field in the Gulf. The re-entered, sidetracked Nang Nuan B01S1 was drilled to a TD of 3,533 meters from 29 May to 25 June. An extended production test on the well flowed 7,500 bod. The field was waiting to review its production in coming years. Navamindra Petroleum Area PTTEP received a very success on exploration campaign in Arthit Project. In 13 of the 14 wells drilled in the 2nd campaign found gas. When combining to the 1st campaign in 2000, the area was believed to very rich in gas. In July 2001 the company announced her new name çNavamindra Petroleum Areaé, covering Bongkot and Arthit Project in B14A, B15A and B16A. This name graciously bestowed by His Majesty the King, Bhumipol Adulyadej. Injection in Progress Two operators applied water injection in order to enhance petroleum production. Chevron commenced water-flood project in its Benchamas field from 15 October 2000. In 2001 there were 4 injectors in BWA platform and 7 injectors in BWB platform in service. The company believed it could produce additional 15 MMbbl of oil over the 10 years of project life. Thai Shell improved its production from Thap Raet field by adding 3 injectors: B01, B02 and B03. By this method the company expected to increase ultimate production from 3.7 MMbbl to 8.9 MMbbl.

29 Development Drilling in 2001 Operator Block Well Name Duration Active Days TD (m) Result Onshore

Pacific Tiger SW1A Wichian Buri North-2 26 May-15 Jun 01 21 1,020.00 Oil Sino-U.S. NC Bung Muang 2-8 17 Jan-12 Feb 01 26 3,025.00 Oil Bung Muang 2-9 14 Feb-5 Mar 01 20 2,955.00 Oil Bung Muang 2-10 28 Nov-22 Dec 01 25 2,995.00 Oil Bung Muang 2-11 30 Dec 01-29 Jan02 31 2,936.00 Oil Thai Shell S1 Lan Krabu-A08 20-25 Dec 01 6 2,229.00 Oil Lan Krabu-A09 25-30 Dec 01 6 2,477.00 Oil Lan Krabu-A10 30 Dec 01-5 Jan 02 7 2,414.00 Oil Lan Krabu-B17 26 Feb-1 Mar 01 4 2,915.00 Oil Lan Krabu-CB01 13-15 Mar 01 3 2,622.00 Oil Lan Krabu-CB01ST 20-21 Mar 01 2 2,143.00 Oil Lan Krabu-CB02 23-27 Mar 01 5 2,834.00 Oil Lan Krabu-C17 25-30 Apr 01 6 2,248.00 Oil Lan Krabu-E18 1-5 Apr 01 5 3,291.00 Oil Lan Krabu-E19 1-7 Aug 01 7 3,072.00 Oil Lan Krabu-E20 8-14 Aug 01 7 2,711.00 Oil Lan Krabu-E21 14-19 Aug 01 6 2,568.00 Oil Lan Krabu-E22 19-25 Aug 01 7 2,700.00 Oil Lan Krabu-E23 26 Aug-6 Sept 01 12 3,195.00 Oil Lan Krabu-FA01 22-29 May 01 8 2,957.00 Oil Lan Krabu-F22 8-14 Feb 01 7 2,618.00 Oil Lan Krabu-F23 8-15 Jun 01 8 2,931.00 Oil Lan Krabu-F24 30 May-7 Jun 01 8 2,838.00 Oil Lan Krabu-K18 25-29 Jul 01 5 2,294.00 Oil Lan Krabu-S04 1-5 Feb 01 6 2,175.00 Oil Nong Makhaam-C09 11-16 Oct 01 6 2,680.00 Oil Nong Makhaam-E01 16-23 Feb 01 8 2,891.00 Oil Nong Makhaam- F09 3-9 Jan 01 7 1,970.00 Oil Nong Makhaam-F10 10-14 Jan 01 5 2,172.00 Oil Nong Makhaam-F11 19-24 Oct 01 6 2,754.00 Oil Nong Tum-C01 3-18 May 01 16 3,827.00 Oil Thap Raet-C04 18-23 Jun 01 6 2,389.00 Oil Gulf of Thailand Chevron B 8/32 Benchamas-A21 30 Jul-26 Aug 01 12 2,965.00 Oil & Gas Benchamas-A22 5 Jun-16 Sep 01 16 3,921.00 Gas Benchamas A23ST1 9-13 Jul 01 5 3,485.40 Oil & Gas Benchamas-A24 13 Jun-5 Jul 01 6 2,839.80 Oil & Gas Benchamas-A25 13-30 Jun 01 15 3,644.20 Gas Benchamas-A26 20 Jun-17 Jul 01 6 2,995.00 Oil & Gas Benchamas-A27 21 Jun-26 Jul 01 11 3,091.00 Gas Benchamas-A28 2 Aug-10 Sep 01 13 4,140.00 Gas Benchamas-A29 6 Jun-2 Sep 01 13 2,928.00 Gas Benchamas-B26 25 Oct-21 Nov 01 17 3,543.30 Gas Benchamas-B27 1-3 Nov 01 3 1,310.00 P&A(Drill pipe stuck) Benchamas-B27ST1 8 Nov-14 Dec 01 13 3,060.00 Gas

30 Operator Block Well Name Duration Active Days TD (m) Result

Benchamas-B28 26 Oct-5 Dec 01 20 3,433.00 Gas Benchamas-B29 27 Oct-26 Dec 01 18 3,581.00 Gas Benchamas-B33 30 Dec 01-24 Jan02 7 2,831.60 Oil & Gas Tantawan-D11ST1 22 Jan-5 Feb 01 15 3,276.90 Oil & Gas Tantawan-D15 20 Jan-9 Feb 01 8 3,543.30 Oil & Gas Maliwan-A01 7-21 Oct 01 15 3,124.00 Gas PTTEP B15 Bongkot-4-LR 10 Jun-1 Jul 01 10 2,777.00 Gas Bongkot -4-JR 12-23 Jun 01 12 2,607.00 Gas Bongkot -7-MRW 22-29 Jul 01 8 2,150.00 Gas Bongkot -7-MRE 20 Jul-5 Aug 01 11 3,525.00 Gas Bongkot -8-LE 4-13 May 01 10 3,285.00 Gas Bongkot -8-LW 3-28 May 01 18 2,610.00 Gas Bongkot -12-B 6-23 Oct 01 10 3,725.00 Gas Bongkot -12-C 7-26 Oct 01 20 3,283.00 Gas Bongkot -12-DE 24-30 Oct 01 7 3,388.00 Gas Bongkot -12-DW 15 Aug-4 Sep 01 10 3,584.00 Gas Bongkot -12-F 13 Aug-30 Sep 01 23 3,856.00 Gas Bongkot -12-G 17-26 Aug 01 12 3,160.00 Gas Bongkot -12-H 30 Oct-13 Nov 01 15 3,586.00 Gas Bongkot -12-L 16 Aug-11 Sep 01 10 3,025.00 Gas B16 Bongkot -9-JW 1-14 Feb 01 14 3,444.00 Gas Bongkot -10-CW 19-31 Mar 01 13 4,172.00 Gas Bongkot -10-FE 2-13 Apr 01 12 3,302.00 Gas Bongkot -10-FW 1-20 Apr 01 9 3,016.00 Gas Bongkot -10-K 24 Feb-19 Mar 01 10 3,381.00 Gas Bongkot -10-LW 25 Feb-5 Mar 01 9 2,969.00 Gas Bongkot -10-M 5-12 Mar 01 8 2,945.00 Gas Thai Shell B6/27 Nang Nuan-B01S1 29 May-18 Jun 01 21 3,533.00 Oil Unocal B10 Plamuk-B3 11-25 Nov 01 9 3,520.44 Oil & Gas Plamuk-B5 11-20 Nov 01 10 3,389.37 Oil & Gas Plamuk-B6 22 Sep-11 Oct 01 11 3,395.47 Oil & Gas Plamuk-B9 22 Sep-4 Oct 01 7 3,122.68 Oil & Gas Plamuk-B10 20 Sep-17 Oct 01 11 2,980.94 Oil & Gas Plamuk-B11 21 Sep-26 Oct 01 13 3,429.00 Oil & Gas Plamuk-B12 22 Sep-3 Nov 01 11 3,553.36 Oil & Gas Plamuk-B13 21 Sep-11 Nov 01 12 3,485.39 Oil & Gas Yala-A5 26 Apr-13 Jun 01 12 3,604.26 Oil & Gas Yala-A6 27 Jun-10 Jul 01 14 3,534.46 Oil & Gas Yala-A8 25 Apr-26 Jun 01 10 1,692.55 Oil & Gas Yala-A9 9-29 Nov 01 10 3,603.65 Oil & Gas Yala-A10 10 Nov-5 Dec 01 10 3,273.55 Oil & Gas Yala-A11 27 Apr-17 Jun 01 8 3,804.51 Oil & Gas Yala-A12 25 Apr-5 Jun 01 13 3,653.33 Oil & Gas Yala-A16 9-20 Nov 01 8 3,764.89 Oil & Gas Yala-A17 26 Apr-28 May 01 14 3,683.20 Oil & Gas Yala-A19 25 Apr-9 May 01 8 3,395.78 Oil & Gas Yala-A20 27 Jun-17 Jul 01 12 3,254.65 Oil & Gas

31 Operator Block Well Name Duration Active Days TD (m) Result

Yala-A23 26 Jun-24 Jul 01 12 3,270.50 Oil & Gas Yala-A24 27 Apr-19 May 01 9 3,286.05 Oil & Gas Yala-A27 26 Jun-2 Aug 01 10 3,858.77 Oil & Gas Jakrawan-B13 25 Dec 01-6 Jan 02 6 4,096.51 Gas Jakrawan-B16 25 Dec 01-2 Jan 02 9 3,438.14 Gas Jakrawan-B17 25 Dec 01-10 Jan 02 6 3,260.44 Gas Jakrawan-B19 6-15 Dec 01 10 4,235.20 Gas Jakrawan-B20 5-23 Dec 01 6 2,369.82 Gas Jakrawan-B22 6-20 Dec 01 8 3,861.21 Gas B12 Erawan-D16 13 Feb-1 Mar 01 5 3,051.96 Gas Erawan-D17 13 Mar-4 Apr 01 9 3,722.22 Gas Erawan-D18 13-29 Mar 01 8 3,714.29 Gas Erawan-D19 12-24 Mar 01 11 3,169.92 Gas Erawan-D20 4 Feb-11 Mar 01 9 3,428.39 Gas Erawan-D21 13 Feb-4 Mar 01 7 3,864.86 Gas Erawan-D22 6-17 Apr 01 9 3,872.84 Gas Erawan-D23 6-26 Feb 01 7 3,901.44 Gas Erawan-D24 7-23 Apr 01 9 3,884.98 Gas Erawan-D25 5-21 Feb 01 8 3,231.79 Gas Erawan-D26 4 Apr-1 May 01 11 3,291.23 Gas Erawan-D27 5 Feb-6 Mar 01 6 3,953.26 Gas B12 Erawan-K15 20 May-3 Jun 01 7 3,803.90 Gas Erawan-K16 18-19 May 01 2 502.92 P&A Erawan-K17 18 May-25 Jun 01 10 4,300.73 Gas Erawan-K18 19 May-16 Jun 01 6 4,117.85 Gas Erawan-K19 25 May-3 Jun 01 8 4,136.14 Gas Erawan-K20 20 May-10 Jun 01 9 4,128.52 Gas Erawan-K25 20 May-13 Jun 01 7 3,504.28 Gas B12 Erawan-G20 4-27 Dec 01 6 3,825.24 Gas Erawan-G21 4-25 Dec 01 8 3,568.60 Gas Erawan-G22 3 Dec 01-1 Jan 02 6 3,179.06 Gas Erawan-G23 4 Dec 01-4 Jan 02 7 3,628.64 Gas Erawan-G24 4-21 Dec 01 7 3,655.47 Gas Erawan-G26 4-18 Dec 01 10 3,999.59 Gas B13 Funan-E19 25 Aug-4 Sep 01 8 3,082.14 Gas Funan-E20 25 Aug-8 Sep 01 10 4,443.98 Gas Funan-E21 22 Aug-18 Sep 01 7 3,200.40 Gas Funan-E22 21 Aug-25 Sep 01 7 2,982.47 Gas Funan-E23 21 Aug-22 Sep 01 8 3,213.51 Gas Funan-E24 18 Aug-15 Sep 01 9 3,199.79 Gas Funan-E25 24 Aug-11 Sep 01 6 3,209.24 Gas Funan-K2 11 Aug-23 Sep 01 18 3,783.18 Gas Funan-K6 14-31 Aug 01 7 2,869.53 Gas Funan-K7 17 Aug-11 Sep 01 7 3,399.13 Gas Funan-K11 15 Aug-4 Sep 01 7 2,862.68 Gas Funan-K12 15 Aug -8 Sep 01 10 3,243.38 Gas Funan-K13 18 Aug-14 Sep 01 8 4,137.66 Gas

32 Operator Block Well Name Duration Active Days TD (m) Result

B12/27 Pailin-B7 13 Aug-2 Sep 01 12 4,464.40 Gas Pailin-B11 5 Jul-9 Aug 01 7 4,629.61 Gas Pailin-B12 4-23 Jul 01 12 4,511.95 Gas Pailin-B13 13 Aug-15 Sep 01 14 4,233.98 Gas Pailin-B14 10-25 Aug 01 14 3,643.88 Gas Pailin-B15 3-14 Jul 01 10 3,527.75 Gas Pailin-B21 13 Aug 01 1 318.51 P&A Pailin-C3 4-26 Oct 01 9 3,789.27 Gas Pailin-C14 15-20 Oct 01 6 3,749.30 Gas Pailin-C17 7 Oct-4 Nov 01 18 3,870.96 Gas Pailin-C19 7 Oct-25 Nov 01 17 4,394.61 Gas Pailin-C20 6-30 Oct 01 10 3,788.66 Gas Pailin-C21 7 Oct-1 Dec 01 9 3,709.41 Gas Pailin-C24 8 Oct-12 Nov 01 16 4,223.61 Gas Pailin-C25 7 Oct-16 Nov 01 12 4,162.04 Gas North Pailin-D04 13-31 Dec 01 9 3,371.09 Gas North Pailin-D07 15-26 Dec 01 6 3,805.43 Gas North Pailin-D10 15-24 Dec 01 9 3,421.38 Gas

33 Petroleum Production

Daily Rate Thailand produced petroleum in 2001 equivalent to 440,295 boed, or 1% reduction from the previous year. Based on heating content, shares of the produced petroleum were as follows: 75% natural gas, 14% oil and 11% condensate. Total production of gas was 1,899 MMscfd (or 331,266 boed), down by 2.6% while domestic consumption was growing up by 7.3%. The gap was filled up with Myanmar gas, which sprung up over 72 folds. PTT tried to use up take-or-pay Myanmar gas, thus, to reduce its requirement for gas suppliers in the Gulf of Thailand. But for Nam Phong field on land, ExxonMobil produced gas on declining trend. Condensate was produced at 51,732 bcd (or 47,095 boed), 0.9% reduction, as to a slowdown of domestic gas production. Unocal Thailand was forced to reduce its production along with gas whereas PTTEP gained more by an additional gas rate. In contrast, crude oil production increased by 6.9% to 61,934 bod. Main increments came from Benchamas production and the advent of Big Oil Project by Unocal Thailand. The project was started-up producing oil on 23 July 2001. Unocal Thailand planned to produce oil from 3 former condensate-producing fields and a new oil field, Yala, namely PSKY (Plamuk, Surat, Kaphong and Yala), with an initial rate at 2,500-3,000 bod and up to 15,000-18,000 bod in Q1 of 2002. New input to the production list was DED (Defense Energy Department), a single non-concessionaire who had long produced crude oil from Fang, the first-ever oil field in Thailand.

Petroleum Production Operator Gas Condensate Crude Oil (MMcfd) (bcd) (bod) 2000 2001 2000 2001 2000 2001 Unocal Thailand 1,117 1,028 38,827 35,524 0 1,196 PTTEP 548 584 13,393 16,208 0 0 Chevron 154 170 0 0 31,808 36,811 Offshore Total 1,819 1,782 52,220 51,732 31,808 38,007 Thai Shell 59 57 0 0 23,848 21,570 ExxonMobil 71 60 0 0 0 0 PTTEPI 0 0 0 0 548 597 SIino-U.S. 0 0 0 0 635 903 Pacific Tiger 0 0 0 0 221 196 DED 0 0 0 0 881 661 Onshore Total 130 117 0 0 26,133 23,927 Grand Total 1,949 1,899 52,220 51,732 57,941 61,934

Producible Fields Thailand had a single oil-producing field in production long time before 1981. But, from then onwards, there was at least a new producing field in every 3 year. Until 2001 year-end, a total of 29 petroleum fields were used to be in production and the latest one was Maliwan oil field in the Gulf of Thailand. It was temporarily put on production on 23 October 2001.

34 Petroleum Producing Fields No. Field Startup In Operator in 2001 Output Products 1 Fang1 1959 DED Oil 2 Erawan September 1981 Unocal Thailand Gas & Condensate 3 Sirikit2 January 1983 Thai Shell Oil & Gas 4 Baanpot October 1983 Unocal Thailand Gas & Condensate 5 Satun January 1985 Unocal Thailand Gas & Condensate 6 Platong March 1985 Unocal Thailand Gas & Condensate 7 Nang Nuan-A January 1988 Thai Shell Oil 8 Kaphong July 1989 Unocal Thailand Gas & Oil 9 Nam Phong December 1990 ExxonMobil Gas 10 U-Thong July 1991 PTTEPI Oil 11 Kamphaeng Saen July 1991 PTTEPI Oil 12 Bung Ya September 1991 Sino-U.S. Oil 13 Funan February 1992 Unocal Thailand Gas & Condensate 14 Surat May 1992 Unocal Thailand Gas & Oil 15 Bongkot July 1993 PTTEP Gas & Condensate 16 Nang Nuan-B October 1993 Thai Shell Oil 17 Jakrawan October 1993 Unocal Thailand Gas & Condensate 18 Bung Muang March 1994 Sino-U.S. Oil 19 Gomin November 1995 Unocal Thailand Gas & Condensate 20 Wichian Buri May 1995 Pacific Tiger Oil 21 Na Sanun May 1996 Pacific Tiger Oil 22 Tantawan February 1997 Chevron Oil & Gas 23 Si Thep December 1997 Pacific Tiger Oil 24 Plamuk January 1998 Unocal Thailand Gas & Oil 25 Pladang April 1998 Unocal Thailand Gas & Condensate 26 Benchamas June 1999 Chevron Oil & Gas 27 Trat July 1999 Unocal Thailand Gas & Condensate 28 Pailin August 1999 Unocal Thailand Gas & Condensate 29 Maliwan October 2001 Chevron Oil & Gas Notes 1 consisting of 7 satellite fields: San Sai, Chaiprakarn, Pong Nok, Mae Soon, Nong Yao, Sam Jang, Ban Thi 2 consisting of 8 satellite fields: Sirikit Main (1982), Sirikit West (1983), Pru Krathiam (1987), Wat Taen (1988), Pratu Tao (1990), Sirikit East (1995), Nong Tum (1999), Nong Jig (1999) (Startup Year)

Producible Wells in 2001 Production Wells Field Wells As of December 2001, producible wells of all producing Erawan 329 fields totaled as 1,609. The total broke down into Baanpot 34 1,098 wells of Unocal Thailand, 196 wells of Thai Satun 192 Shell, 118 wells of Chevron, 115 wells of PTTEP, 37 Pladang 12 Trat 29 wells of DED, 21 wells of Sino-U.S., 11 wells of Platong 108 PTTEPI, 8 wells of ExxonMobil Khorat and 5 wells of Kaphong 37 Pacific Tiger. Surat 7 Plamuk 12 Funan 165 Jakrawan 73 Gomin 30 Pailin 70 Bongkot 115 Nang Nuan-B 1 Tantawan 60 Benchamas 57 Maliwan 1 Sirikit 195 Nam Phong 8 Kamphaeng Saen 1 U-Thong 10 Bung Ya 10 Bung Muang 11 Wichian Buri 3 Na Sanun 1 Si Thep 1 Fang 37 Total 1,609

35 Exported Content Chevronûs Crude Export in 2001 Export of petroleum liquids in 2001 fell by Tantawan Benchamas Total 4.6%, but for oil export rose by 22.8%. Indonesia 0 3,806,809 3,806,809 No more condensate was exported in the Australia 1,069,278 2,065,015 3,134,293 year. It was the first year that Chevron Singapore 415,384 1,551,675 1,967,059 sold some oil to domestic market. Only China 0 1,558,172 1,558,172 Chevron and Unocal Thailand shipped USA 1,462,730 0 1,462,730 their products out to other countries. Japan 0 706,515 706,515 Australia, Indonesia, Singapore, China, New Zealand 0 611,439 611,439 USA were among the same Chevronûs Total 2,947,395 10,299,625 13,247,017 customers. Unocal Thailand delivered Unit in barrel the first 272,488 barrels of oil from the Big Oil Project to China by late of the year.

New Record Production Milestone of Phet Crude First production December 1982 According to Thai Shellûs Fact Sheet, the company had passed the 125th MMbbl of Phet crude in August 2001 10th MMbbl May 1985 50th MMbbl December 1990 since start-up production in December 1982. 100th MMbbl July 1997 125th MMbbl August 2001 New Initiatives Due to higher in gas content in U-thong main site, PTTEPI made use of the produced gas in oil/gas separation process instead of electricity. By fuelling boiler, it could save much electricity bill for heating oil. It was the first time for Thai Shell to introduce ESP (Electrical Submersible Pump) to few production wells having low GOR. The company previously had 2 types of production wells (70% gas-lifted and 30% natural flow).

36 Monthly Petroleum Production in Thailand in 2001

FIELD Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec TOTAL NATURAL GAS (MMscf) Erawan 7,827.249 7,043.857 8,328.696 8,513.666 9,031.529 8,561.709 8,634.154 7,383.872 8,502.295 8,354.425 7,370.524 7,663.959 97,215.935 Baanpot 325.559 288.301 384.491 551.270 453.107 416.666 235.402 207.715 222.087 199.128 129.961 238.078 3,651.765 South Satun 699.734 517.801 1,139.306 2,006.999 2,195.132 2,222.702 2,539.151 1,318.793 1,178.563 1,522.658 963.182 1,107.203 17,411.224 Satun 5,009.289 4,299.830 4,438.688 2,812.778 3,012.666 3,274.674 3,631.053 3,265.085 3,242.270 3,551.416 3,154.493 3,233.589 42,925.831 Pladang 669.413 535.461 636.038 637.650 760.679 482.691 569.340 876.307 467.353 653.320 796.917 786.620 7,871.789 Trat 1,372.430 993.623 2,135.904 3,737.093 3,517.217 3,021.179 3,037.522 3,016.709 3,042.179 3,089.625 2,971.762 2,923.465 32,858.708 Platong 793.903 613.428 847.910 861.861 896.026 868.430 857.167 565.242 468.220 523.622 599.108 595.449 8,490.366 Kaphong 752.443 903.392 853.109 867.333 1,066.193 1,082.945 906.165 734.109 527.223 465.416 480.076 376.379 9,014.783 Surat 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 9.600 9.600 Plamuk 43.330 0.000 0.000 0.000 0.000 14.764 92.234 430.798 369.139 365.443 310.773 476.638 2,103.119 Funan 2,495.066 2,824.854 3,362.698 3,669.349 3,862.753 4,588.748 4,646.356 3,960.339 2,996.877 4,108.239 3,787.386 3,610.905 43,913.570 Jakrawan 422.838 527.990 595.759 514.537 519.119 497.406 492.446 435.512 327.213 496.496 389.543 364.455 5,583.314 West Jakrawan 877.701 1,319.725 2,056.126 2,584.757 2,714.228 2,801.254 2,644.057 1,662.350 1,323.293 2,215.415 1,379.332 1,651.851 23,230.089 Gomin 308.788 254.401 252.190 396.742 565.662 292.494 221.872 164.644 278.889 241.344 231.314 195.307 3,403.647 Pailin 7,159.353 6,494.062 7,659.421 7,684.628 8,032.464 7,611.442 7,560.969 6,834.030 5,880.380 4,393.220 4,379.583 3,802.103 77,491.655 Bongkot 16,949.000 16,393.694 18,929.000 15,777.000 18,056.000 18,258.000 16,303.312 19,734.040 19,460.900 19,085.830 17,951.740 16,329.793 213,228.309 Tantawan 1,176.013 1,063.875 1,399.247 1,600.934 2,049.941 2,258.048 1,848.360 1,166.027 1,375.512 1,410.162 1,858.002 1,792.767 18,998.888 Benchamas 3,374.397 3,211.340 3,484.724 3,336.127 3,719.059 2,656.760 3,974.795 3,378.935 3,494.753 4,084.971 4,370.528 3,908.768 42,995.157 Sirikit 1,834.189 1,638.393 1,827.999 1,591.384 1,734.372 1,668.689 1,817.675 1,696.830 1,752.925 1,840.919 1,672.430 1,799.639 20,875.444 Nam Phong 1,867.090 1,691.952 1,879.108 1,815.703 1,856.193 1,722.986 1,841.857 1,856.909 1,834.679 1,886.068 1,853.175 1,924.075 22,029.795 Total 53,957.785 50,615.979 60,210.414 58,959.811 64,042.340 62,301.587 61,853.887 58,688.246 56,744.750 58,487.717 54,649.829 52,790.643 693,302.988 CONDENSATE (bbl) Erawan 263,661 233,134 267,334 272,919 305,831 311,644 318,400 250,504 288,903 279,550 232,624 234,208 3,258,712 Baanpot 7,740 7,064 10,871 14,846 7,531 7,000 2,511 2,559 4,120 4,560 6,114 10,115 85,031 South Satun 20,457 12,893 34,995 65,320 61,722 60,948 62,555 33,405 30,035 37,721 24,372 25,661 470,084 Satun 160,742 122,578 89,554 102,676 136,778 90,468 123,535 104,910 117,858 141,449 106,494 98,228 1,395,270 Pladang 17,637 19,193 16,373 26,945 28,535 23,873 24,723 73,350 26,132 25,234 46,362 38,218 366,575 Trat 38,404 42,321 122,679 110,086 75,673 100,947 87,599 72,404 65,996 62,882 77,597 88,389 944,977 Platong 52,394 42,249 51,762 57,897 57,027 51,985 45,291 49,577 20,779 28,461 57,050 27,039 541,511 Kaphong 28,191 33,161 23,613 17,821 26,967 29,007 0 0 0 0 0 0 158,760 Plamuk 1,015 0 0 0 0 50 0 0 0 0 0 0 1,065 Funan 132,300 147,889 161,286 165,742 147,307 171,350 186,142 166,428 122,349 157,454 190,344 176,094 1,924,685 Jakrawan 16,289 3,190 2,633 4,257 18,087 12,851 11,840 7,105 1,776 2,160 1,012 0 81,200 West Jakrawan 32,512 37,278 49,370 51,355 52,926 58,485 54,445 38,697 31,150 50,051 31,411 34,405 522,085 Gomin 13,893 11,521 10,357 25,663 36,279 17,207 15,531 10,008 15,568 25,399 21,324 18,843 221,593 Pailin 246,417 238,485 273,770 281,900 302,482 313,088 312,036 290,550 249,856 175,818 155,707 154,606 2,994,715 Bongkot 496,611 447,533 504,584 395,005 473,850 471,054 436,659 555,393 544,923 570,976 540,607 478,689 5,915,884 Total 1,528,263 1,398,489 1,619,181 1,592,432 1,730,995 1,719,957 1,681,267 1,654,890 1,519,445 1,561,715 1,491,018 1,384,495 18,882,147 CRUDE OIL (bbl) Kaphong 0 0 0 0 0 0 16,883 33,091 35,265 33,689 47,254 66,061 232,243 Surat 0 0 0 0 0 0 0 0 0 0 0 5,576 5,576 Plamuk 0 0 0 0 0 0 418 27,637 31,928 32,750 38,538 67,718 198,989 Tantawan 210,615 197,715 231,036 241,250 242,912 295,262 277,686 254,866 236,401 234,561 220,814 249,475 2,892,593 Benchamas 876,435 747,100 859,207 805,463 822,300 633,970 920,513 930,213 881,333 970,218 993,163 1,103,367 10,543,282 Sirikit 750,214 667,915 714,246 657,279 696,896 659,451 674,549 654,950 631,090 631,177 560,762 574,499 7,873,028 Kamphang Saen 57 63 94 179 874 1,008 931 984 931 1,014 916 917 7,968 U-Thong 20,858 17,359 19,632 18,468 18,591 17,655 17,489 16,769 16,064 15,552 15,550 15,788 209,775 Bung Ya 12,371 11,383 12,045 10,341 10,690 10,097 10,138 10,027 9,484 9,707 9,396 9,087 124,766 Bung Muang 8,248 15,981 15,522 22,863 20,608 17,634 18,531 20,339 17,205 17,061 15,330 15,305 204,627 Wichian Buri 5,564 4,570 4,817 4,458 3,511 6,243 8,252 6,959 6,350 5,376 4,739 4,854 65,693 Si Thep 551 471 535 497 533 541 455 510 481 420 429 439 5,862 Fang 25,995 21,026 23,550 17,681 8,219 10,580 17,686 24,884 21,924 23,764 19,880 25,965 241,154 Total 1,910,908 1,683,583 1,880,684 1,778,479 1,825,134 1,652,441 1,963,531 1,981,229 1,888,456 1,975,289 1,926,771 2,139,051 22,605,556 Siriki tLPG,(Tons) 9,254 8,498 9,375 8,879 9,321 9,118 9,514 9,171 9,061 9,400 8,790 9,318 109,699

37 Activities in the Malaysia-Thailand Joint Development Area (MTJDA)

Cakerawala Gas Field; the first-ever development project in MTJDA Cakerawala gas field, in Block A-18, is the first development project in MTJDA. After the Gas Sales Agreement (GSA) signed on 30 October 1999, the preparation works was in progress. As operator of the block, CTOC (Carigali-Triton Operating Company Sdn. Bhd.) are formed of Petronas Carigali (JDA) Sdn. Bhd., Triton Oil Company of Thailand (JDA) Ltd., and Triton Oil Company of Thailand Inc. On 8 March 2000, a consortium of Technip Geoproduction Sdn. Bhd., Samsung, and Saipem signed a contract for an Engineering, Procurement, and Construction (EPC) with CTOC to construct and install Cakerawala facilities in order to deliver gas at 390 MMscfd to the joint buyers, PTT Plc and Petronas by July 2002. The project consists of the Central Processing Facilities (CPF), a riser platform (RP), three wellhead platforms (WP), A, B, and C, and a Floating Storage Unit (FSU). This contract valued US$578 million. As of 31 December 2001, the overall project was 93% completed. Fabrication and installation of the WPA, WPB, WPC, RP, CPF Jacket, and RP Main Support Frame were completed during the Phase I installation campaign. Remaining work to be completed and installed were CPF Topsides, RP-CPF Bridge, Flare Boom, and RP Compression Modules. The second installation campaign was scheduled to commence in February 2002. First development well was drilled in late October 2001. There were 5 development wells on CKA platform at the time of reporting. The CKP deck, compressor modules I&II, and FSO vessel would be completed in March 2002. The contract is to deliver 390 MMscfd of natural gas for 20 years period at an initial price of US$2.30 per MMbtu.

CPF: A fully integrated facilities consisting of 2 trains of gas processing facilities, utilities,

accommodation and a cantilever flare also, equipped with CO2 removal and associated pretreatment equipments to remove CO2 down to 15% before delivering to buyers RP: A platform gathering incoming and outgoing pipelines, on top the deck installed with a gas compressor WP: 3 WP to be designed to accommodate 35 development wells FSU: A floating, offloading unit with a storage capacity of 500,000 barrels of stabilized con- densate

The Gas Field Development Plan in Block B-17&C-19 The contractors of these 2 blocks are CPOC (Carigali-PTTEPI Operating Company Sdn. Bhd.), joint company between Petronas Carigali (JDA) Sdn. Bhd., and PTTEP International Ltd. In agreement with MTJA, CPOC negotiated with the joint buyers, PTT Plc and Petronas for the possible gas trade of Block B-17. According to work programs, 2 exploration wells set to be drilled in the first quarter of 2002. Production Sharing Contract (PSC) All operators in MTJDA shall comply with the PSC system. The essence of PSC can be summarized as follows: of any sale volume or value (of produced petroleum), 10% given to MTJDA as royalty, up to 50% deductible as cost recovery to operator, and equally allocated of the rest (profit) to MTJDA and operator. The operator shall contribute 0.5% of its revenue to fund research study. In case of ship- ping oil to outside Thailand and Malaysia, the operator shall pay 10% of its profit as export tariff.

38 The operator is subjective to be exempt from petroleum income tax in the first 8 years, but for the next 7 years, to pay 10% of net profit. After 15 years of production onwards, income tax will be as high as 20% of net profit. MTJDA signed PSC with CPOC and CTOC on 21 April 1994 and the contract will be expired 35 years ahead. Discovered Gas Fields During 1994-1999, the operators spent US$386 million for exploring petroleum in the area. 15 gas fields were concluded with 8.5 Bcf of natural gas excepting CO2 and 57 MMbbl of associated conden- sate.

Petroleum Wells in MTJDA Completion T.D. Well Test Well Name in (Feet) Gas Condensate (MMscfd) (bpd) A-18, CTOC Suriya-1 1995 6,273 NA NA Suriya-2 1996 9,814 47 225 Senja-1 1997 7,600 36 839 Senja-2 1998 10,094 2 59 Cakerawala-1A 1995 7,878 NA NA Cakerawala-2 1996 9,650 31 576 Cakerawala-3 1996 9,814 47 225 Cakerawala East-1 1996 11,750 NA NA Bumi-1 1996 9,279 73 305 Bumi East-1 1997 9,100 34 1,681 Bumi North-1 1997 9,200 42 356 Samudra-1 1997 12,000 49 858 Wira-1 1997 10,000 9 137 Bulan-1 1996 7,140 36 123 Bulan-2 1996 9,160 30 185 Bulan-3 1998 4,620 No test No test B-17, CPOC Tapi-1 1996 9,250 NA NA Tapi-2 1998 8,908 7 - Muda-1 1995 7,620 NA NA Muda-2 1997 7,865 35 194 Muda-3 1997 9,656 22 259 Muda-4 1997 8,663 18 132 Muda-5 1998 8,136 12 128 Jenka-1 1997 9,256 48 1,451 Jenka-2 1997 10,781 14 66 Jenka West-1 1998 10,171 7 59 Jenka Souht-1 1998 9,351 No test No test Amarit-1 1997 10,332 8 326 Mali-1 1997 9,145 10 688

39 Petroleum Reserves

Crude Oil Oil Reserve by Operator Oil proved reserve significantly increased by Operator 2000 2001 Change 19.5%. Newly appraised by Thai Shell in Unocal Thailand 22.13 29.16 +7.03 Sirikit West field and a successful water-flood , Chevron Offshore 136.00 160.98 +24.98 project of Chevron s Benchamas field played Harrods 18.90 15.90 -3.00 a major role to add up 60 MMbbl for the total. , CPOC 0.05 0.05 0.00 Unocal s Big Oil Project carried on since mid CTOC 4.95 4.95 0.00 2001 also put another 6 MMbbl. Favorable Pacific Tiger 0.41 0.97 +0.56 result from the delineation drilling in Pacific PTTEPI 0.52 0.69 +0.17 , Tiger s Wichian Buri field gave promise to Sino-US 0.61 0.57 -0.04 have more producible crude. Thai Shell 87.00 110.00 +23.00 By operator, the proved reserve at 2001 Fang 1.44 1.66 +0.22 year-end was 52.92 MMbbl higher than of Total 272.01 324.93 +52.92 2000. Unit in MMbbl

Condensate Condensate Reserve by Operator Condensate, the liquid hydrocarbon derived Operator 2000 2001 Change from wet gas in the Gulf, was slightly higher Unocal Thailand 115.07 128.21 +13.14 in proved reserve. This positive change by PTTEP 70.40 72.00 +1.60 6.1% of the total was incurred by Unocal CPOC 13.30 13.30 0.00 Thailand. Especially North Pailin delineation CTOC 43.95 43.95 0.00 made Pailin proved reserve from 25.91 MMbbl Total 242.72 257.46 +14.74 up to 43.39 MMbbl. Whereas the reserve of Unit in MMbbl PTTEP reduced at the same figure as 2000 extraction.

Gas Reserve by Operator Natural Gas Operator 2000 2001 Change Natural gas proved reserves in 2001 upped by Unocal Thailand 4,029.98 4,370.74 +340.76 5.0 %. Major reduction caused by the annual Chevron Offshore 842.10 815.26 -26.84 production of PTTEP and Chevron Offshore. PTTEP 4,283.00 4,529.38 +246.38 In contrast, reassessment of Thai Shell, the Harrods 132.00 132.00 0.00 latest appraisal of North Pailin by Unocal CPOC 581.00 581.00 0.00 Thailand and fruitful exploration of PTTEP in CTOC 2,232.50 2,232.50 0.00 Arthit Project made big increment to the Thai Shell 194.00 256.70 +62.70 ExxonMobil 134.00 147.00 +13.00 total. Amerada Hess 276.25 276.25 0.00 Total 12,704.83 13,340.83 +636.00 Unit in Bcf

40 5.00 57.25 2,813.50 4.90 51.40 1,733.00 9.35 84.25 2,078.00 - 32.61 - 216.66 160.98 - 815.26 73.60 - 67.55 174.38 1,056.55 ------48.00 6.66 -- Thailand Petroleum Reserves as of December 31, 2001 Thailand Petroleum (MMBBL) (MMBBL) (BCF) (MMBBL) (MMBBL) (BCF) (MMBBL) (MMBBL) (BCF) (MMBBL) (MMBBL) (BCF) GRAND TOTAL 188.59 196.47 6,739.53 324.93 258.42 13,340.84 152.30 222.91 9,092.49 328.79 206.40 10,025.41 Field/Project/ Concession Cumulative Production Proved Reserves Probable Reserves Reserves Possible CENTRAL PLAIN 141.96 - 317.25 112.23 - 256.70 43.71 - 88.17 53.99 - 103.67 GULF OF THAILAND 37.74 196.47 6,148.25 211.04 258.42 12,660.88 104.04 222.91 8,778.32 271.93 206.40 9,272.75 NORTHERN INTERMONTANENORTHERN 8.88 - - 1.66 - - 4.55 - - 2.87 - - KHORAT PLATEAU KHORAT ACIFIC TIGER(Operator) 1.03 - - 0.97 - - 0.90 - - 2.24 - - ailin B12/27 Pattani - 7.61 187.86 - 43.3940.13 1,271.30 - 1,167.40 -580.20 16.94 PTTEPI(Operator) 3.36 - - 0.69 - - 0.36 - - 0.84 - - HARRODS(Operator) - - - 15.90 0.96 132.00 5.90 1.61 155.20 3.98 5.71 490.00 SINO US(Operator)THAISHELL(Operator) 1.63 135.95 - - 317.25 - 110.00 0.57 - - 256.70 39.83 - 2.62 - 88.17 - 46.65 - - 4.26 103.67 - - ESSO(Operator)AMERADA HESS(Operator)P - - - - 274.02 -147.00 - - - - - 276.25 11.00 -- - - 15.00 215.00 - - 634.00 OPEN PTTEP(Operator)CHEVRON(Operator) THAISHELL(Operator)MTJA - 29.59 1,219.94 - 72.00 4.69 4,529.38 - - 38.70 2,766.003,656.42 - 60.30 - - - - 5.00 - - 35.00 - - Banpot Pattani B13UNOCAL(Operator) Banpot Pattani Dara ErawanFunan -Gomin1,985.12 JakrawanKaphong*56.14 Moragot1.22 3,856.57 4.94 Pattani 131.20 Pattani14.64 Pattani 122.074,370.74 Pattani Pattani B10 Pattani 128.21 B12 B12/27 Pattani B12-B1329.16 B134,711.65 - B12-B13 B11 0.44 166.88 0.23 3.35 - - - - 4.50 99.30 - - 4.15 58.78 206.63 - - 104.94 19.01 1,753.94 -151.50 3.61 - 476.27 - 0.55 8.78 -734.20288.10 - - 19.81 64.08 11.024.17 23.50 5.10 225.8 - 2.17 - - 313.70 - - - 5.17 9.08 119.80 - 10.90 321.20 3.612 2.91 182.04 - - 72.2 - 54.80 130.80 - 3.61 2.20 5.79 186.70 87.90 - 69.00 1.02 - - 1.59 0.16 64.40 - 11.97 27.572 53.07 236.60 - 617.8 - 9.00 - 0.50 - 8.78 9.362 16.72 190.60 276.5 1 2 3 4 5 6 7 8 9P No. Structure Basin Block Oil Condensate Gas Natural Oil Condensate Gas Natural Oil Condensate Gas Natural Oil Condensate Gas Natural 3839 Na Sanun40 Sri Thep Buri Wichian Phetchabun Phetchabun Phetchabun SW1 SW1 SW1 0.50 0.49 0.03 ------0.95 0.02 ------0.90 ------1.10 0.64 0.50 ------3435 Bua Ban Songkla Songkhla Songkhla4142 Kampaeng Saen OPEN Uthong43 OPEN44 Bung Ya Bung Maung45 Sirikit et al. Kampaeng Saen - PTTEP1 - Suphan Buri Phitsanulok Phitsanulok Phitsanulok PTTEP1 0.29 --- NC1 - NC1 S1- 3.08 - - - 0.91 0.71- 135.95 - - - - 31.00 - -4.32 - - 0.04 - - 317.25 - - 0.66 - - 110.00 0.36 0.21 ------256.70 - - - - 39.83 0.36 - - 2.30 0.32 - 17.00 - - 88.17 - - - - 0.07 46.65 2.34 - - 0.77 - - 0.79 3.47 - 103.67 ------46 Fang Fang DED46 Fang 8.88 -4.55- - - 1.66 - - 2.87 - - 36 Nam Phong37 Horm Phu Khorat Khorat E5 EU1 - - - - 274.02 - - - - 147.00 - 276.25 - - - 11.00 - 215.00 - - - 15.00 - 634.00 3233 CPOC ** ** CTOC Malay Malay B17 A18 ------0.05 4.95 13.30 43.95 581.00 2,232.50 0.50 4.40 17.65 33.75 1,386.00 347.00 0.40 8.95 43.90 40.35 1,494.00 584.00 19 Arthit Malay B14A,15A,16A - - - - 12.001,000.00B14A,15A,16A1,500.00--18- 19 Bongkot - Arthit Malay - 2021 Boon Darik22 - Bua Luang 18.00 23 Busabong 12.0024 Chang Dang 25 Changphuak 1,000.00 L-Structure26 Malay B15-B1627 Pattani Benchamas/Pakakrong 28 B8/32 Pattani Chaba Pattani29 Jamjuree Pattani30 Maliwan Pattani B12/32 Pattani Tantawan 31 B11/38 Pattani - Pattani B12/32 B8/31 Nang Nuan 20.63 B12/32 B11/38 - 29.59 Pattani B5/27 - Pattani Pattani - - - - 1,219.94 - Chumpon - B8/32 - - B8/32 0.01 89.04 B8/32 - B6/27 ------99.72 - 48.302,656.420.11 - 60.00 - 0.07 - 11.97124.00 - - - 4.69 3,529.38 1,266.00 - 269.5524.70- -11.47 - 17.51 - 4.30 0.27 -71.00-25.00 20.70 -174.41 10.810.21 11.98 - - - - 90.00 - 0.13 - - - - 24.01 - 7.74 - -46.73 15.90 127.5126.47 - 0.04 45.33 - 0.14 8.70 0.51 0.44 183.77 - - - 7.76 3.90 - 23.40 31.91 4.800.50 - 170.00 29.00 258.94 - 248.33 35.00 - - - - - 41.87 - 91.06 0.08 - 5.90 0.29 0.90 - 1.71 7.90 9.60 58.00 155.28 - - - 71.50 - 5.00355.37 - - - 15.47 0.30 0.90 3.50 - 3.98 - 8.05 24.00 232.00 29.00 - - - - 35.00 134.47 - - 14 Satun Pattani B11-B12 - 41.441,303.94 - 6.56255.00 - 7.87272.80 - 2.4597.40 - 7.87272.80 - 6.56255.00 4.40258.00 - B1110B11-B12- 11 Pakarang12B1141.441,303.94 Pladang Pattani 327.20 1.8813 Plamuk*14 Platong1529.00- Satun Pattani 16 - Surat* 44.6017 - Pattani Trat Yala*8.74 B11 Pattani -1.12 341.20- - B10 Pattani 0.79 B10-B11 Pattani 2.04- 1.78 B10 Pattani 20.90 -8.55 B11 Pattani 0.20 51.30 67.61 - 0.01 0.15 - - 17.18 - - 1.58 10.88 342.24 - 15.52 26.61 - -147.30 - 7.16196.70 - 5.92 6.53 6.64 5.90 192.6078.60 - - - - 61.40 2.9013.40 - 3.10 63.7045.40- 0.68 88.30 1.35 - 0.65- 0.36 5.20 35.100.50 - 5.00 - - 0.05 21.90 - 19.70 1.44 41.20 * big oil project ** The reported figures are 50 % of total reserves

41 5.00 57.25 2,813.50 4.90 51.40 1,733.00 9.35 84.25 2,078.00 - -- (MMBBL) (MMBBL) (BCF) (MMBBL) (MMBBL) (BCF) (MMBBL) (MMBBL) (BCF) (MMBBL) (MMBBL) (BCF) Thailand Petroleum Reserves inside Production Areas as of December 31, 2001 Thailand Petroleum GRAND TOTAL 188.59 196.47 6,739.53 284.62 149.90 8,621.38 130.49 99.93 4,070.17 250.39 127.30 6,030.08 Field/Project/ Concession Cumulative Production Proved Reserves Probable Reserves Reserves Possible CENTRAL PLAIN 141.96 - 317.25 101.23 - 231.03 39.73 - 79.35 49.33 - 93.30 KHORAT PLATEAUKHORAT - - 274.02 - - 423.25 - - 226.00 - - 649.00 GULF OF THAILAND 37.74 196.47 6,148.25 181.73 149.90 7,967.10 86.21 99.93 3,764.82 198.19 127.30 5,287.78 NORTHERN INTERMONTANENORTHERN 8.88 - - 1.66 - - 4.55 - - 2.87 - - ACIFIC TIGER(Operator) 1.03 - - 0.97 - - 0.90 - - 2.24 - - ailin Pattani B12/27 - 7.61 187.86 - 4.52 189.20 - 0.34 10.10 - 0.01 11.30 SINO US(Operator) SINO US(Operator) 1.63 - - 0.57 - - 2.62 - - 4.26 - - ESSO(Operator)AMERADA HESS(Operator)PTTEPI(Operator)THAISHELL(Operator) - -* big oil project **The reported figures are 50 % of total reserves - - 3.36 274.02 - 135.95 ------317.25 147.00 276.25 0.69 99.00 - - - - - 231.03 - - 11.00 215.00 35.85 0.36 - - - 79.35 - 41.99 - - - 634.00 15.00 - 0.84 93.30 - - PTTEP(Operator)HARRODS(Operator)CHEVRON(Operator)THAISHELL(Operator)MTJA - - 32.61 29.59 1,219.94 - 4.69 - - 216.66 - - 149.00 39.60 15.90 2,329.39 0.27 - - - 783.35 90.00 - 13.66 65.86 5.90 835.56 - 0.21 - - 71.00 242.55 - 31.88 149.68 3.98 1,753.24 5.00 0.51 - 170.00 - 932.55 - 35.00 - - P UNOCAL(Operator)BanpotDaraErawanFunanGominJakrawanKaphong*Moragot Pattani Pattani Pattani B13 Pattani B11 Pattani B12-B13 Pattani B13 B10 Pattani B12 B12-B13 Pattani 0.44 - - B12/27 - 0.23 - - 166.88 - 19.01 4.50 4,711.65 3.61 4.15 4.94 58.78 - 476.27 206.63 11.83 - 1,753.94 104.94 122.07 64.08 52.78 - - 1,950.86 0.55 - - - - -102.60 7.61 1.63 4.55 9.67 - 1.30 0.98 - - 224.50 - 34.65 428.20 23.50 36.70 19.30 882.71 9.08 0.17 - - - 1.74 182.04 0.18 - - 0.86 - 6.20 3.61 0.99 10.66 55.60 21.30 0.12 72.20 - - - 26.60 354.00 - - 2.30 1.59 -0.11 0.01 0.02 - - 0.19 53.07 0.17 3.60 - 1.10 27.57 - 11.90 10.00 617.80 0.04 - 0.80 0.20 0.50 - 16.72 9.36 276.50 1 2 3 4 5 6 7 8 9P No. Structure Basin Block Oil Condensate Gas Natural Oil Condensate Gas Natural Oil Condensate Gas Natural Oil Condensate Gas Natural 38 Fang Fang DED 8.88 - - 1.66 - - 4.55 - - 2.87 - - 2627 CPOC ** ** CTOC 28 Nam Phong29 Horm Phu Malay Malay Khorat3334 B17 Kampaeng Saen Khorat A18 Uthong35 E536 Bung Ya Bung Maung37 EU1 Kampaeng Saen Sirikit et al. - PTTEP1 - Suphan Buri - Phitsanulok Phitsanulok - 0.29 PTTEP1 - Phitsanulok - NC1 NC1 - S1 3.08 - - - - 274.02 0.91 0.71 0.05 135.95 4.95 - - - - 13.30 43.95 - - 0.04 581.00 2,232.50 - - - - 0.50 - 147.00 317.25 - 4.40 - 0.66 - 17.65 33.75 99.00 0.36 0.21 276.25 - - - 1,386.00 347.00 - - - - 8.95 0.40 - - - 231.03 40.35 43.90 11.00 - - - 0.36 1,494.00 35.85 - 584.00 215.00 2.30 0.32 ------79.35 0.07 - 15.00 41.99 - - - 0.77 - 634.00 - 3.47 0.79 - - 93.30 - - - - - 3031 Na Sanun32 Sri Thep Buri Wichian Phetchabun Phetchabun Phetchabun SW1 SW1 SW1 0.50 0.49 0.03 ------0.95 - 0.02 ------0.90 ------1.10 0.64 0.50 ------18 Bongkot1920 Busabong L-Structure2122 Benchamas/Pakakrong23 Jamjuree24 Maliwan Malay Tantawan B8/32 Pattani 25 Pattani Pattani Nang Nuan B15-B16-B17 20.63 B8/32 Pattani B12/32 B5/27 Pattani Pattani - Chumpon - B8/32 - B8/32 - - B6/27 29.59 89.04 1,219.94 - 0.01 11.97 - - 4.69 99.72 - 39.60 2,329.39 ------269.55 127.51 24.01 - 0.11 15.90 -248.33 10.81 - 13.66 7.76 17.51 - 0.27 - 835.56 41.87 - - 90.00 - - - 26.47 - - 174.41 91.06 - - 31.88 155.28 46.73 5.90 11.47 1.71 1,753.24 0.21 71.50 - - - - 71.00 - 183.77 5.00 - 45.33 15.47 - 355.37 - - 23.40 8.05 3.98 0.51 - - 170.00 - - 258.94 35.00 134.47 - - - 1011 Pakarang12 Pladang13 Plamuk*14 Platong15 Satun16 Surat*17 Trat Yala* Pattani B11 Pattani Pattani B10-B11 Pattani B11 Pattani Pattani B10 B11 Pattani Pattani - - B11-B12 B10 - B11 0.20 1.88 17.18 - - 0.01 44.60 342.24 - 0.15 2.04 41.44 - 10.88 1.58 - - - 1,303.94 67.61 8.17 26.61 0.74 2.97 - - - - 116.80 23.00 0.25 - 0.12 6.56 - 3.98 60.20 - - - 255.00 177.40 3.32 2.85 0.04 2.71 0.05 5.90 - - - - 0.90 1.30 - - 0.91 31.00 0.26 - 18.70 - - 29.70 7.84 - 1.84 0.02 0.04 0.01 - - - - - 1.60 0.20 - - 0.13 0.06 31.30 3.80 - 0.04 5.90 2.48 0.14 2.30 - - - 5.60

42 48.00 - 6.66 ------(MMBBL) (MMBBL) (BCF) (MMBBL) (MMBBL) (BCF) (MMBBL) (MMBBL) (BCF) Thailand Petroleum Reserves outside Production Areas as of December 31, 2001 Thailand Petroleum GRAND TOTAL 40.31 108.52 4,719.45 21.81 122.99 5,022.32 78.40 79.10 3,995.33 CENTRAL PLAIN 11.00 - 25.67 3.98 - 8.82 4.67 - 10.37 Field/Project/ Concession Proved Reserves Probable Reserves Reserves Possible GULF OF THAILAND 29.31 108.52 4,693.78 17.83 122.99 5,013.50 73.74 79.10 3,984.96 ailinakarang Pattani Pattani B11 B12/27 - - 38.87 6.52 1,082.10 193.38 - - 39.78 2.85 1,157.30 80.46 - - 16.92 0.44 568.90 19.42 THAISHELL(Operator)* big oil project 11.00 - 25.67 3.98 - 8.82 4.67 - 10.37 Erawan Pattani B12-B13UNOCAL(Operator)Banpot Erawan Pattani FunanGominJakrawan -Kaphong*Pladang Pattani Pattani 10.15 Pattani Pattani Pattani B11 Pattani B13 306.00 B13 -HARRODS(Operator) B11 B12-B13 B10 17.33 -PTTEP(Operator) - - - 0.69 -CHEVRON(Operator) - 75.43 -OPEN - 32.40 42.00 9.28 1.04 2.04 2,419.88 3.47 3.29 2,199.99 1.93 258.10 10.09 28.30 62.60 - - 185.50 96.70 35.50 - 96.55 - 1.40 - - - - 2,973.86 25.04 - - 3.41 11.98 84.20 1.07 7.92 5.17 1,930.44 2.01 1.04 118.90 4.80 11.85 - 204.50 27.70 - 45.48 113.60 - - 160.10 234.30 1,631.12 5.20 31.91 - 28.42 69.00 - - 320.00 - 1,903.18 7.74 4.00 0.78 0.15 1.00 2.09 8.74 141.50 20.70 63.30 - 84.30 190.40 - 25.00 8.20 24.70 - 124.00 1 2 3 4 5 6 7P 8P 9 No. Structure Basin Block Oil Condensate Gas Natural Oil Condensate Gas Natural Oil Condensate Gas Natural 25 Sirikit et al. Phitsanulok S1 11.00 - 25.67 3.98 - 8.82 4.67 - 10.37 1011 Plamuk*12 Platong13 Satun14 Surat*15 Trat Yala*1617 Boon Darik18 Pattani Bua Luang19 B10-B11 Pattani Chang Dang Changphuak B11-B12 Pattani 20 B10 Pattani 21 Bongkot B10 B11 Pattani Arthit B1122 Pattani Pattani Chaba Pattani Pattani - B11/38 Pattani - B12/32 6.91 B12/32 7.35 Malay B15-B16-B17 B11/38 3.07 - Malay B14A,15A,16A 3.56 Pattani ------75.80 - 4.57 B8/32 11.98 - 0.07 55.50 - 20.40 0.04 87.10 163.80 12.00 0.14 47.60 0.44 - - 4.30 1,199.99 0.68 1,000.00 3.19 3.90 - 4.80 - 1.05 29.00 1.31 31.91 - - - 6.96 - - - 8.74 34.20 - - - 7.74 0.13 7.04 243.10 5.20 18.00 45.00 327.20 0.08 - 14.10 0.29 0.90 430.44 - 1,500.00 8.70 0.05 0.62 - 7.90 - 1.42 0.22 58.00 9.60 25.00 - - 2.32 - - 39.60 - 4.35 - - - - 24.70 16.42 12.00 91.50 255.70 0.50 5.00 15.90 0.30 7.80 3.50 1,000.00 0.90 903.18 - 35.00 24.00 232.00 29.00 124.00 2324 Bua Ban Songkla Songkhla Songkhla OPEN OPEN ------31.00 - - 17.00 4.32 - 2.34

43 Prtroleum Fields in Thailand

44 Coal Activities in Thailand

Overview For decades in Thailand, coal, as an important alternative source of energy has been used for power generation. Coal was firstly mined in 1900 at Bang Poo Dam, in Krabi province, southern Thailand. But, the mine lasted within 7 years. History of coal mining in Thailand seemed to commence in 1955 when Mae Moh, the largest open-pit coal mine in SE Asia was started up by EGAT in Lampang province, northern Thailand. Coal of this mine has long-time served the nation for electricity generation. DMR, the solely authority responsible for seeking coal in Thailand, has conducted a special task to explore and assess about 100 Tertiary basins since 1987 and 30 of those are concluded mineable potential. Most coals in Thailand have been found in intermontane basins of Tertiary age. Due to containing commonly high in ash and moisture content, Thai coals are low in heating average. Based on ASTM classification, they are ranked as either lignite or sub-bituminous. Coals of many basins in Thailand are found to be high in sulfur content. Less than 1% of excavated coals in Thailand ranked anthracite. These coals have been found as thin, folded bed in complex Carboniferous strata. In common, Thai coals of 30% ash contain heating content ranging from 2,500 to 4,500 cal/g. The estimates came from the analyses of random samples of several sources.

Ash content & Calorific Value

%Ash

45 Mining Leases Summary of Coal Mining Leases Coal mining lease in Thailand has been applied As of 2001 according to the Mineral Acts. A minimal block No. of Area Province of 300 rais (120 acres) will be awarded per Leases (Rais) mining tract. Chiang Mai 5 1,063.90 Lamphun 40 6,325.76 Up to 2001 year-end, 25 coal concessionaires Lampang 69 16,627.66 held 146 tracts throughout Thailand. The Phayao 11 2,623.72 tracts were mostly located in northern Tak5872.18 provinces, i.e. Lampang, Lamphun, Chiang Petchaburi 10 1,857.52 Mai, Phayao, and Tak. The total areas covered Krabi 3 765.86 30,776 rais (12,310.4 acres). Of this total, 41 Loei 2 549.87 tracts were on production, 67 tracts in pending Nong Bua Lamphu 1 89.53 and 38 others never excavated. Total 146 30,776.00

Coal Production By Operator In 2001 coal in Thailand were produced from 12 coal mines; 10 of which located in northern Thailand and one each in the central and southern regions. All these active coal mines had been conducted by 8 operators. Only 3 operators, EGAT, Ban Pu and Lanna Lignite were the major coal producers of the year. The production of these three has represented over 90% of the total for years.

Summary of Coal Mines Operator District Province 2001 Output Cumulative Output

EGAT Mae Moh Lampang 15,314,436 195,925,877 Muang Krabi 133,000 8,077,603 Mae Tha Lampang 2,190,862 13,839,934 Ban Pu Li Lamphun 447,725 14,240,897 Chiang Muan Phayao 236,968 2,258,801 Lanna Lignite Li Lamphun 883,940 15,358,397 Nong Ya Plong Petchaburi 105,000 1,146,527 Suje Lignite Mae Sot Tak 67,445 1,129,192 Li Lamphun 226,921 446,624 Siam Cement Mae Tha Lampang 0 2,281,072 World Fuel Li Lamphun 200 439,860 Mae Chaem Chiang Mai 5,500 2,337,042 Laem Thong Lignite Hot Chaing Mai 0 1,381,005 Ngao Lampang 0 208,685 Tran Sin Ngao Lampang 5,000 66,282 Naklang Lignite Li Lamphun 0 2,850 Phrae Lignite Li Lamphun 0 3,380,528 Lamphun Chareon Lignite Li Lamphun 0 8,386 S.H. Holding Li Lamphun 0 316,122 Sakon Mining Li Lamphun 0 250 Mr.Pairoj Li Lamphun 0 1,232 Siam Carbon Ngao Lampang 0 481,908 L.M.K. Mae Tha Lampang 0 9,590 Thai Kaolin Mae Tha Lampang 0 2,000 Lignite Mae Teep Ngao Lampang 0 24,083 Cheiw Kee Chan Mae Tha Lampang 0 2,540 Mr.Sathavorn Ngao Lampang 0 131,000 Mr.Songrit Ngao Lampang 0 50,041 Mr.Wattana Mae Tha Lampang 0 346,426 Thai Lignite Mae Ramat Tak 0 325,559 Trang Lignite Kantang Trang 0 9,590 Total 19,618,998 264,264,529 Unit in tonne

46 By Basin Due to economic crisis the production of coal in Thailand slipped from maximum of 22.133 million tonnes in 1997 down to 17.641 million tonnes in 2000. The production bounced back in 2001 around 11% to 19.619 million tonnes. Production output in 2001 came from 8 coal basins: Mae Moh (78.10%), Mae Tha (11.20%), Li (7.95%), Chiang Muan (1.21%), Nong Ya Plong (0.54%), Krabi (0.67%), Mae Lamao (0.34%), and Na Hong (0.03%). Monthly output varied from 1.32 to 1.97 million tonnes during the year. The value of the produced coal calculated by posted price (500 baht/tonne) was 8,850 million baht and Thai government could collect 393.1 million baht as royalty (4% of the posted price).

Coal Production in 2001 2.0

1.5

1.0 TONNES

0.5

0.0 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC

Coal Production in Thailand Million Tonnes

47 Imported Coal Coal Imported to Thailand Imported coal grew both in quantity 2000 2001 and value. In 2001 Thailand imported Type Quantity CIF Value Quantity CIF Value about 4.937 million tonnes of coal Tonne Million baht Tonne Million baht and coal products, or approximately Anthracite 108,132 165 234,887 354 17% higher than in 2000. But, in CIF Bituminous 2,159,415 2,360 2,796,546 4,329 value, Thailand spent much more. Coke, Semi-coke 66,173 311 57,056 312 The value was 72% up. Most of the Other Coals 1,366,858 1,509 1,848,511 2,482 import (91% of value total) was Briquettes 1 0 0 0 primarily used in cement industry. Total 3,700,579 4,345 4,937,000 7,477 Because of containing higher calorific, Source: Customs Department imported bituminous and other coals as fuels were suitable to blend with Thai coal for cement manufacturing. Bituminous was, thus, the top of the import list and remarkably increased recently. Thailand imported coal from Indonesia, Vietnam, Myanmar, Laos, China, and Australia.

Utilization of Coals Thai coal in 2001 was consumed 10% higher in parallel to annual production. The consumption totalled 19.497 million tonnes. Share of which was almost the same as the figure in 2000. Most of the coals were used in electricity generation and the remainder, about 21%, was used in cement, paper, fiber, and other industries. To combine with import total (4.397 million tonnes), the country consumption was estimated to 24 million tonnes of coal. It was speculated that more than 80% of imported coal was sent to cement industry. Percentage of coal used for cement production was certainly much higher than 14% as reported.

Uses of Domestic Coals in Thailand Uses 1997 1998 1999 2000 2001 Electricity 17.460 15.140 13.420 14.134 15.317 Cement 3.390 3.214 3.820 2.540 2.822 Paper 0.480 0.606 0.496 0.313 0.032 Fiber 0.180 0.234 0.317 0.236 0.052 Lime 0.056 0.285 0.026 0.039 0.429 Tobacco 0.074 0.103 0.018 0.024 0.232 Food 0.052 0.070 0.020 0.077 0.073 Metal 0.002 0.003 0.025 0.012 0.000 Others 0.060 0.385 0.329 0.267 0.540 Total 21.754 20.040 18.471 17.642 19.497 Unit in million tonnes

Coal Reserves Disclosed by mining data, the remaining reserve of coal at the end of 2001 was estimated at 1,354 million tonnes. The largest reserve of 1,211 million tonnes in Mae Moh basin belonged to EGAT. Country cumulative production up to 2001 was 264.8 million tonnes.

48 Coal Reserves of Thailand Reserves Basin Name District, Province Coal Rank Age Produced Remaining Northern Region Mae Moh Mae Moh, Lampang 194.176 1,211.430 Lignite to Sub-bituminous Tertiary Li Li, Lamphun 35.874 NA Lignite to Bituminous Tertiary Mae Than Sop Prap, Lampang 17.471 18.378 Lignite to Bituminous Tertiary Chiang Muan Chiang Muan, Phayao 1.635 NA Lignite to Bituminous Tertiary Na Hong Mae Chaem, Chiang Mai 2.493 NA Lignite to Sub-bituminous Tertiary Bo Luang Hod, Chiang Mai 1.378 NA Lignite to Sub-bituminous Tertiary Mae Lamao Mae Sod, Tak 1.121 0.508 Lignite to Bituminous Tertiary Mae Teep Ngao, Lampang 0.885 10.115 Lignite to Bituminous Tertiary Mae Tun Mae Ramat, Tak 0.320 0.900 Lignite to Bituminous Tertiary Central Region Nong Ya Plong Nong Ya Plong, Phetchaburi 1.196 0.525 Lignite to Bituminous Tertiary Southern Region Krabi Muang, Krabi 8.094 111.905 Lignite to Sub-bituminous Tertiary Kantang Kantang, Trang 0.010 NA Lignite Tertiary Northeastern Region Na Duang Na Duang, Loei 0.154 NA Anthracite Pre-Tertiary Na Klang Na Klang, Udon Thani 0.006 NA Anthracite Pre-Tertiary Total 264.813 1,353.761 Unit in million tonnes

Undeveloped Resources An additional exploration drilling by DMR in 2001 placed 16.476 million more tonnes to measured coal resources of Thailand. Three new basins namely Mae Chaem, Mae Jai and Phan added 16.94 million tonnes to the list. Reevaluating of Serm Ngam decreased the 2001 figure by 0.464 million tonnes. The undeveloped coal resources of Thailand as compiling of 30 basins throughout the country broke up as follows: 801 million tonnes measured and 804 million tonnes indicated.

49 Coal Resources of Thailand Basin Name/ Province Measured Indicated Coal Rank Wiang Haeng/ Chiang Mai 93.019 34.124 Lignite B to Sub-bituminous B Fang/ Chiang Mai 1.120 NA Lignite A to Sub-bituminous B San Pa Tong/ Chiang Mai 0.500 NA Lignite to Sub-bituminous Bo Salee/ Chiang Mai 0.432 0.667 Sub-bituminous C Pai/ Mae Hong Son 0.174 0.366 Lignite to Sub-bituminous Wang Nua/ Lampang 9.012 21.160 Lignite B to Sub-bituminous A Ngao/ Lampang 48.400 50.690 Lignite B to Sub-bituminous B Chae Hom-Muang Pan/ Lampang 16.186 41.047 Lignite B to Sub-bituminous A Mae Chang/ Lampang 2.009 5.003 Lignite A to Sub-bituminous B Hang Chat/ Lampang 10.320 28.260 Lignite A to Sub-bituminous A Mae Tha/ Lampang 22.487 55.065 Lignite to Sub-bituminous A Chiang Muan/ Phayao 25.275 17.989 Lignite B to Sub-bituminous B Na Sai/ Lamphun 1.310 5.270 Lignite A Mae Ramat/ Tak 37.540 72.170 Lignite A to Sub-bituminous A Mae Lamao/ Tak 15.575 46.366 Lignite to Sub-bituminous C Phob Phra/ Tak 2.330 7.040 Lignite to Sub-bituminous Umphang-Pala Tha/ Tak 8.053 19.236 Lignite to Sub-bituminous A Phrae/ Phrae 1.612 0.403 Lignite to Sub-bituminous Bung Sam Phun/ Petchabun 6.850 NA Lignite A to Sub-bituminous A Wichian Buri/ Petchabun 1.650 2.620 Lignite to Sub-bituminous Nong Ya Plong/ Phetchaburi 4.452 12.256 Sub-bituminous to Bituminous Nong Phlub/ Prachuap Khirikhan 10.520 2.786 Lignite to Bituminous Sin Pun/ Nakorn Si Thammarat 91.060 16.428 Lignite A to Sub-bituminous B Khian Sa/ Surat Thani 15.411 40.000 Lignite B to Sub-bituminous A Saba Yoi/ Songkhla 349.860 254.890 Lignite Kantang/ Trang 3.420 10.260 Lignite to Sub-bituminous Mae Jai/ Phayao 1.790 5.360 Lignite B Mae Chaem/ Chiang Mai 5.340 16.040 Lignite B to Sub-bituminous A Phan/ Chiang Rai 9.810 26.610 Lignite B to Lignite A Serm Ngam/ Lampang 5.730 12.040 Lignite B to Sub-bituminous A Total 801.247 804.146 Measured resource refers to the amount in the radius of 200 meter of an exploratory well. Indicated resource refers to the amount in the adjacent annulus of 200-400 meter apart. NA denotes data not available Unit in million tonnes

DMRûs Activities in 2001 In 2001 DMR conducted coal exploration and assessment in 4 basins: Serm Ngam, Mae Chaem, Mae Chai and Phan. The activities included drilling, well logging as well as geological mapping over 600 sq km of those. A total of 46 wells with a cumulative depth of 6,000 m and 8,323 m of well logging were completed. 4 of 12 delineation wells in Serm Ngam basin encountered several coal layers of 0.1-5.5 m thick at depths between 5 and 364 m. Sample analyses indicated lignite A to sub-bituminous C as classified on ASTM standard. 7 exploration and follow-up wells proved the existing of coal seam in Mae Chaem basin. Several of coal beds ranging from 0.4 to 8.48 m thick were found from 9 to 178 m deep. The coals were classified as lignite B to sub-bituminous A. In Mae Chai basin, 3 exploratory wells intersected lignite B beds of 0.42-4.15 m thick at depths of 149.95 and 237.42 m. Successful exploration was the discovery in Phan basin. 10 of 11 wells found coal beds of 0.36- 7.09 m at 38.18-181.96 m depth.The analyses of 62 samples ranked the coal as lignite B-lignite A.

Summary of CEPûs Activity in 2001 Drilling Basin Name Province Wells Depth Well Log* Sample Cal/g (m) (m) Analysis Serm Ngam Lampang 12 1,500 2,099.65 6 1,798-4,915 Mae Chaem Chiang Mai 12 1,500 1,958.91 26 3,036-4,615 Mae Chai Chiang Rai 6 1,094 2,799.73 11 2,496-3,161 Phan Phayao 11 1,906 1,464.38 62 1,052-3,582 Total 41 6,000 8,322.67 105 * Density, Neutron, Resistivity and Sonic

50 Joint Project Incorporation with JICA (Japan International Cooperation Agency) DMR carried out the feasibility study in the northern part of Ngao basin, Lampang province covering an area of 63 sq km. The joint project started in August 2000 and completed in September 2001. The main objectives of this study was to make a conceptual mine planning applying an upgrading coal techniques. Activities included bulk sampling, exploratory drilling, geophysical well logging, coal analyses and rock testing, and quality upgrading (float and sink test). In addition, preliminary research of marketing, mining cost as well as coal preparation cost was studied. The result of this study indicated that the development of mine planning in some location was promising. However, upgrading quality by sulfur removing techniques was not economical in present condition. Coal Production Areas in Thailand

52 Coal Potential Areas in Thailand

53 List of Petroleum Concessionaires

Amerada Hess (Thailand) Ltd. 17th Floor, Rama IV Building (Opposite Lumpini Park), 990 Rama IV Road, Bangkok 10500 Tel : (66) 2636 1936-40 Fax : (66) 2636 1941 Amoco Thailand Petroleum Co. 24th Floor, Rajanakarn Building, 183 South Sathorn Road, Yannawa, Sathorn, Bangkok 10120 Tel: (66) 2684 3796 Fax: (66) 2684 3795 British Gas Thailand PTE Ltd. British Gas Asia Inc. Thai Energy Co., Ltd. 321 B, 21st Floor, SCB Park Plaza, Tower III East, 19 Ratchadapisek Road, Chatuchak, Bangkok 10900 Tel: (66) 2937 9280 Fax : (66) 2937 9291-2 Chevron Overseas Petroleum Thailand Ltd. Chevron Offshore (Thailand) Ltd. B 8/32 Partners Ltd. 27th Floor, Suntowers Building B., 123 Vibhavadi Rangsit Road, Ladyao, Chatuchak, Bangkok 10900 Tel: (66) 2618 1000 Fax: (66) 2618 1001 Devon Energy (Thailand) Ltd. 4th Ritratana building, 1769 Ramkhamhaeng Road, Hua Mark, Bangkapi, Bangkok 10240 Tel: (66) 2319 9869 Fax: (66) 2717 2863 Defense Energy Department (DED) Ministry of Defense, 496 Phetchaburi Road, Bangkok 10400 Tel: (66) 2208 9021-6 Fax: (66) 2208 9444

54 ExxonMobil Exploration and Production Khorat Inc. 3195/16 Rama IV Road (11th Floor), Klong Toey, Bangkok 10110 Tel : (66) 2262 4000, 661 3100 Fax: (66) 2262 4805 Forest Oil International (Thailand) Ltd. 2469/8-9 A.P.C.I. Building, New Phetchaburi Road, Bangkapi, Huay Kwang, Bangkok 10320 Tel : (66) 2319 1975-7 Fax: (66) 2318 2257 Harrods Energy (Thailand) Limited 26th Floor, Maison Maneeya Building, 1 Phaholyothin Road, Soi 9, Phayathai, Bangkok 10400 Tel : (66) 2617-1620-2 Fax: (66) 2617-1623, 2617-1615 Kerr - McGee (Thailand) Ltd. 15th Floor, Thai Wah Tower II, 21/117A South Sathorn Road, Thung Mahamek, Sathorn, Bangkok 10120 Tel : (66) 2677 3093-7 Fax: (66) 2267 3098 Moeco Thailand Co., Ltd. Mitsui Oil Exploration Co., Ltd. MOECO Thai Oil Development Co., Ltd. 12th Floor, Boonmitr Building, 138 Silom Road, Suriwong, Bangrak, Bangkok 10500 Tel : (66) 2236 6765-6, 2236 8176 Fax: (66) 2236 8177 MMC Exploration and Production (Thailand) Ltd. 14th Floor, Kamolsukosol Building 317 Silom Road, Silom, Bangrak Bangkok 10500 Tel: (66) 2237 6739 Fax: (66) 2236 8333 Pacific Tiger Energy (Thailand)Ltd. Unit 46/20,6th floor, The Nation Tower, 46 Bangna-Trad Road, Moo 10, Bangna, Bangkok 10260 Tel : (66) 2751 4025-8 Fax: (66) 2751 4029-30

55 PTT Exploration and Production Public Co., Ltd. PTTEP International Ltd. PTTEP Office Building, 555 Vibhavadi Rangsit Road, Chatuchak, Bangkok 10900 Tel : (66) 2537 4000 Fax : (66) 2537 4333, 2537 4444 Sino-U.S. Petroleum Inc. Sino Thai Energy Ltd. Combined Oil and Gas (Thailand) Inc. Thai Energy Resources Ltd. 6th Floor, Ban Chang Glass Huas Building, 1 Sukhumvit 25, Klong Toey, Bangkok 10110 Tel: (66) 2260 6181-8 Fax: (66) 2258 9926 SOCO Exploration (Thailand) Co., Ltd. 4th Floor, 1769 Ritratana Building, Ramkhamhaeng Road, Hua Mark, Bangkapi, Bangkok 10240 Tel: (66) 2319 9865, 2717 2644-6 Fax: (66) 2319 6296 Songkhla Resources Ltd. 3rd Floor, Sui Heng Lee Building, 68 Soi Santiparp, Sap Road, Siphaya, Bangrak, Bangkok 10500 Tel: (66) 2233 8607-8 Fax: (66) 2236 7985 The Palangsophon Co., Ltd. 5th Floor, Bangkok Insurance /Y.W.C.A. Building 25 South Sathorn Road, Thung Mahamek, Sathorn, Bangkok 10120 Tel: (66) 2285 8080 Fax: (66) 2677 3900 Thai Shell Exploration and Production Co., Ltd. 10 Soonthornkosa Road, Bangkok 10110 Tel: (66) 2249 0483-4 Fax: (66) 2249 0489, 2249 8393

56 Thaipo Ltd. 8th Floor, All Season Place, 87 M. Thai Tower, Lumpini, Patumwan, Bangkok 10330 Tel: (66) 2654 0686 Fax: (66) 2654 0685 TotalFinaElf Exploration and Production Thailand 22nd Floor, Suntower Building B, 123 Vibhavadi Rangsit Road, Ladyao, Chatuchak, Bangkok 10900 Tel: (66) 2617 6464 Fax: (66) 2617 6454 Unocal Thailand, Ltd. Unocal Petroleum, Ltd. 5th Floor, Tower III, SCB Park Plaza, 19 Ratchadapisek Road, Chatuchak, Bangkok 10900 Tel: (66) 2545 5555 Fax: (66) 2545 5554, 2545 5352

57 Government Agencies, State Enterprises and Institutes

Defense Energy Department (DED) Ministry of Defense, 496 Phetchaburi Road, Bangkok 10400 Tel : (66) 2208-9021-6 Fax : (66) 2208-9444

Department of Energy Development and Promotion (DEDP) Ministry of Science, Technology and Environment 17 Praram I Road, Kasatsuk Bridge Bangkok 10330 Tel : (66) 2223-0021-9 Fax : (66) 2226-1416

Electricity Generating Authority of Thailand (EGAT) 53 Moo 2, Charansanitwong Road, Bang Kruai, Nonthaburi 11130 Tel : (66) 2424-0111, 424-0101 Fax : (66) 2433-6317

National Energy Policy Office (NEPO) Office of The Prime Minister 78 Ratchadamnoen Nok Road, Dusit, Bangkok 10300 Tel : (66) 2282-9028-30, 2280-3880-4, 2280-0951-7 Fax : (66) 2280-0292, 2280-0281, 2280-2035

Office of the Board of Investment (BOI) 555 Vibhavadi Rangsit Road, Chatuchak Bangkok 10900 Tel : (66) 2537-8111, 2537-8155 Fax : (66) 2537-8177

Office of the National Economic and Social Development Board (NESDB) 962 Krung Kasem Road, Bangkok 10100 Tel : (66) 2280-4085 Fax : (66) 2280-0892

58 PTT Public Company Limited (PTT) PTT Office Building, 555 Vibhavadi Rangsit Road, Chatuchak, Bangkok 10900 Tel : (66) 2537-2000 Fax : (66) 2537-3498-9

Public Works Department Gas and Fuel Safety Regulation Division 218/1 Rama VI Road, Phayathai, Bangkok 10400 Tel : (66) 2273-0061, 2273-0860-78 Fax : (66) 2273-0887

Thailand Institute of Scientific and Technological Research (TISTR) 196 Phaholyothin Road, Chatuchak, Bangkok 10900 Tel : (66) 2579-1121-30, 2579-5515, 2579-0160 Fax : (66) 2561-4771

Office of Environmental Policy and Planning 60/1 Soi Pibulwatana 7, Rama VI Road, Bangkok 10400 Tel : (66) 2279-7180-9 Fax : (66) 2271-3266

Petroleum Institute of Thailand (PTIT) 18th Floor, PTT Building, 555 Vibhavadi Rangsit Road, Chatuchak, Bangkok 10900 Tel : (66) 2537-3594-5 Fax : (66) 2537-3591

Technical Petroleum Training Institute (TPTI) Department of Mineral Resources, 3th Floor, Building 1, 75/10 Rama VI Road, Ratchathaewee, Bangkok 10400 Tel : (66) 2640-9859-60 Fax : (66) 2640-9860

59 Coal operators in Thailand

Ban Pu International Limited Siam Carbon Lignite (1978) Co., Ltd. 28th Floor, Grand Amarin Tower, 18th Floor, ITF Silom Plaza 1550 New Phetchaburi Road, 160/679 Silom Road, Ratchathaewee, Bangkok 10310 Bang Rak, Bangkok 10500 Tel: (66) 2207 0730-1, 2207 0752 Tel: (66) 2745 6099-100 Fax: (66) 2207 0753 Fax: (66) 2745 6101 Ban Pu Public Co., Ltd. Siam Cement Public Co., Ltd. 25-28th Floor, Grand Amarin Tower, 1 Siam Cement Road, 1550 New Phetchaburi Road, Bang Sue, Bangkok 10800 Ratchathaewee, Bangkok 10310 Tel: (66) 2586 3333, 2586 4444, Tel: (66) 2207 0688, 2207 0730-1 2586 5385-6 Fax: (66) 2207 0696 Fax: (66) 2587 2199, 2587 2201, 2586 2145 Chiang Muan Mining Co., Ltd. Siam Graphite Co., Ltd. 25th Floor, Grand Amarin Tower, 32-34 Chiang Khan Road, 1550 New Phetchaburi Road, Amphoe Muang, Ratchathaewee, Bangkok 10310 Loei 42000 Tel: (66) 2207 0754, 2207 0779, 2207 0688 Suche Lignite Co., Ltd. Fax: (66) 2207 0695 10/12 Mahardthaibumroong Road, Laemthong Lignite Co., Ltd. Amphoe Muang, 195 Kaew Nawarat Road, Tak 63000 Amphoe Muang, Tel: (66) 2551 2242 Chiang Mai 50000 Thai-Laos Lignite Co., Ltd. Tel: (66) 5330 6366-9, 5324 2856 19/1 Soi Samanchan, Fax: (66) 5324 2993 Sukhumvit 42 Road, Prakanong, Lanna Resource Public Co., Ltd. Bangkok 10110 9th Floor, Mahatun Plaza Building, B55, Tel: (66) 2712 4422, 888/99 Ploenchit Road, Fax: (66) 2712 1190 Bangkok 10330 EGCO Mining Co., Ltd. Tel: (66) 2253 8080 13th Floor, EGCO Tower Fax: (66) 2253 5014 222 Moo 5 Vibhavadi Road, Phrae Lignite Co., Ltd. Tungsonghong, Luksee, Bangkok 6th Floor, Mankong Kehakarn Building, Tel: (66) 2955 0955, 2955 0950-2 719 Bunthudthong Road, 2998 5999 Pathumwan, Bangkok 10330 Fax: (66) 2955 0934

60 Abbreviation

Bcf Billion cubic feet Bcfd Billion cubic feet per day bbl barrel bpd Barrel per day bcd Barrel condensate per day bod Barrel oil per day Mbbl Thousand barrel Mbpd Thousand barrel per day MbpdOE Thousand barrel per day of Oil Equivalent MMbbl Million barrel MMcf Million cubic feet MMcfd Million cubic feet per day MMscf Million standard cubic feet MMscfd Million standard cubic feet per day Tcf Trillion cubic feet Tcfd Trillion cubic feet per day

Amerada Hess Amerada Hess Exploration (Thailand) Co., Ltd. Amoco Amoco Thailand Petroleum Co. BG British Gas Thailand PTE Ltd. Chevron Chevron Offshore (Thailand) Ltd. Esso ESSO Exploration and Production Khorat Inc. Forest Oil Forest Oil International (Thailand) Ltd. Kerr-McGee Kerr-McGee (Thailand) Ltd. Pacific Tiger Pacific Tiger Energy (Thailand) Ltd. PTTEP PTT Exploration and Production Public Co., Ltd. PTTEPI PTTEP International, Ltd. Santa Fe Santa Fe Energy Resources (Thailand) Ltd. Sino-U.S. Sino-U.S. Petroleum Inc. SOCO SOCO Exploration (Thailand) Co., Ltd. Thai Shell Thai Shell Exploration and Production Co., Ltd. Unocal Unocal Thailand, Ltd.

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