13. Reference Information

13.1 Juristic Persons of which the Company’s Shareholding exceeded 10%

(1) PTTEP International Limited or PTTEPI

  Location 555 PTTEP Office Building, Vibhavadi-Rangsit Rd., Bangkok
  10900 Thailand

  Tel. 66 (0) 2537-4000

  Fax 66 (0) 2537-4444

  Branch Office 2 (c) Sei-Myaung Yeiktha Lane, Mayangon Township,
  Yangon, Union of Myanmar

  Type of Business Petroleum exploration and production, investment in
  petroleum business

  Percent of Interest PTTEP holds 100 %

  Number of Issued Shares 2,000,000,000 ordinary shares, Baht 10 per
  share

  Number of Share Owned PTTEP holds 2,000,000,000 ordinary shares

(2) PTTEP Offshore Investment Company Limited or PTTEPO
Location The Office of the Bank of Nova Scotia Trust Company

  (Cayman) Limited, P.O.Box 501, Second Floor, The Bank of Nova Scotia
  Building, George town, Grand Cayman

Mailing Address 555 PTTEP Office Building, Vibhavadi-Rangsit Rd.,
Bangkok 10900 Thailand

Tel. 66 (0) 2537-4000

Fax 66 (0) 2537-4444

Type of Business Petroleum exploration and production, investment in
petroleum business

Percent of Interest PTTEP holds 75% PTTEPI 25%

Number of Issued Shares 6,667 ordinary shares, USD 1 per share

Number of Shares Owned PTTEP holds 5,000 ordinary shares PTTEPI holds
1,667 ordinary shares

(3) PTTEP Kim Long Vietnam Company Limited or PTTEP KV

Location The Office of the Bank of Nova Scotia Trust Company (Cayman)
Limited, P.O.Box 501, Third Floor, The Bank of Nova Scotia Building,
George town, Grand Cayman

Mailing Address 555 PTTEP Office Building, Vibhavadi-Rangsit Rd.,
Bangkok 10900 Thailand

Tel. 66 (0) 2537-4000

Fax 66 (0) 2537-4444

Type of Business Petroleum exploration and production, investment in
petroleum business

Percent of Interest PTTEPO holds 100%

Number of Issued Shares 50,000 ordinary shares, USD 1 per share

Number of Shares Owned PTTEPO holds 50,000 ordinary shares

(4) PTTEP Southwest Vietnam Company Limited or PTTEP SV

Location The Office of the Bank of Nova Scotia Trust Company (Cayman)
Limited, P.O.Box 501, Third Floor, The Bank of Nova Scotia Building,
George town, Grand Cayman

Mailing Address 555 PTTEP Office Building, Vibhavadi-Rangsit Rd.,
Bangkok 10900 Thailand

Tel. 66 (0) 2537-4000

Fax 66 (0) 2537-4444

Type of Business Petroleum exploration and production, investment in
petroleum business

Percent of Interest PTTEPO holds 100%

Number of Issued Shares 50,000 ordinary shares, USD 1 per share

Number of Shares Owned PTTEPO holds 50,000 ordinary shares

(5) PTTEP Hoan-Vu Company Limited or PTTEP HV

Location The Office of the Bank of Nova Scotia Trust Company (Cayman)
Limited, P.O.Box 501 GT, Third Floor, The Bank of Nova Scotia Building,
George town, Grand Cayman

Mailing Address 555 PTTEP Office Building, Vibhavadi-Rangsit Rd.,
Bangkok 10900 Thailand

Tel. 66 (0) 2537-4000

Fax 66 (0) 2537-4444

Type of Business Petroleum exploration and production, investment in
petroleum business

Percent of Interest PTTEPO holds 100%

Number of Issued Shares 50,000 ordinary shares, USD 1 per share

Number of Shares Owned PTTEPO holds 50,000 ordinary shares

(6) PTTEP Hoang-Long Company Limited or PTTEP HL

Location The Office of the Bank of Nova Scotia Trust Company (Cayman)
Limited, P.O.Box 501 GT, Third Floor, The Bank of Nova Scotia Building,
George town, Grand Cayman

Mailing Address 555 PTTEP Office Building, Vibhavadi-Rangsit Rd.,
Bangkok 10900 Thailand

Tel. 66 (0) 2537-4000

Fax 66 (0) 2537-4444

Type of Business Petroleum exploration and production, investment in
petroleum business

Percent of Interest PTTEPO holds 100%

Number of Issued Shares 50,000 ordinary shares, USD 1 per share

Number of Shares Owned PTTEPO holds 50,000 ordinary shares

(7) PTTEP Oman Company Limited or PTTEP OM

Location The Office of the Bank of Nova Scotia Trust Company (Cayman)
Limited, P.O.Box 501 GT, Third Floor, The Bank of Nova Scotia Building,
George town, Grand Cayman

Branch Room No. 13, Al Medinat Plaza, Bashair Street, Medinat Al Sultan
Qaboos, Muscat, P.O. Box 163, P.C. 133 Al Khuwair, Muscat Oman

Mailing Address 555 PTTEP Office Building, Vibhavadi-Rangsit Rd.,
Bangkok 10900 Thailand

Tel. 66 (0) 2537-4000

Fax 66 (0) 2537-4444

Type of Business Petroleum exploration and production, investment in
petroleum business

Percent of Interest PTTEPO holds 100%

Number of Issued Shares 50,000 ordinary shares, USD 1 per share

Number of Shares Owned PTTEPO holds 50,000 ordinary shares

(8) PTTEP Algeria Company Limited or PTTEP AG

Location The Office of the Bank of Nova Scotia Trust Company (Cayman)
Limited, P.O.Box 501 GT, Third Floor, The Bank of Nova Scotia Building,
George town, Grand Cayman

Mailing Address 555 PTTEP Office Building, Vibhavadi-Rangsit Rd.,
Bangkok 10900 Thailand

Tel. 66 (0) 2537-4000

Fax 66 (0) 2537-4444

Type of Business Petroleum exploration and production, investment in
petroleum business

Percent of Interest PTTEPO holds 100%

Number of Issued Shares 50,000 ordinary shares, USD 1 per share

Number of Shares Owned PTTEPO holds 50,000 ordinary shares

  (9) PTTEP (Thailand) Limited or PTTEPT

Location 555 PTTEP Office Building, Vibhavadi-Rangsit Rd., Bangkok 10900
Thailand

Tel. 66 (0) 2537-4000

Fax 66 (0) 2537-4444

Type of Business Petroleum exploration and production, investment in
petroleum business

Percent of Interest PTTEPI holds 51% and PTTEP OM holds 49%

Number of Issued Shares 10,000,000 ordinary shares, Baht 10 per share

Number of Shares Owned PTTEPI holds 5,099,995 ordinary shares. PTTEP OM
holds 4,900,000 ordinary shares

  (10) PTTEP Siam Limited or PTTEPS

Location 555 PTTEP Office Building, Vibhavadi-Rangsit Rd., Bangkok 10900
Thailand

Tel. 66 (0) 2537-4000

Fax 66 (0) 2537-4444

Type of Business Petroleum Exploration and Production, investment in
petroleum business

Percent of Interest PTTEP holds 49% and PTTEPO holds 51%

Number of Issued Shares 1,000,000 ordinary shares, Baht 100 per share

Number of Shares Owned PTTEP holds 489,998 ordinary shares, PTTEPO holds
509,997 ordinary shares

  (11) PTTEP Services Limited or PTTEP Services

Location 555 PTTEP Office Building, Vibhavadi-Rangsit Rd., Bangkok 10900
Thailand

Tel. 66 (0) 2537-4000

Fax 66 (0) 2537-4444

Type of Business Provide advisory services for Petroleum Exploration and
Production business

Percent of Interest PTTEP holds 25% and PTTEPT holds 75%

Number of Issued Shares 100,000 ordinary shares, Baht 10 per share

Number of Shares Owned PTTEP holds 24,993 ordinary shares. PTTEPT holds
75,000 ordinary shares

(12) PTTEP Iran Company Limited or PTTEP IR

Location The Office of Scotiabank& Trust Company (Cayman) Limited,
P.O.Box 501 GT, Third Floor, 6 Cardinall Avenue, Scotiabank Building,
George town, Grand Cayman

Branch Unit 5&6, 5^(th) Floor, Sayeh Tower, Vali-e-Asr Avenue, 19677
13671 Tehran-Iran

Mailing Address 555 PTTEP Office Building, Vibhavadi-Rangsit Rd.,
Bangkok 10900 Thailand

Tel. 66 (0) 2537-4000

Fax 66 (0) 2537-4444

Type of Business Petroleum exploration and production, investment in
petroleum business

Percent of Interest PTTEPOM holds 100%

Number of Issued Shares 50,000 ordinary shares, USD 1 per share

Number of Shares Owned PTTEPOM holds 50,000 ordinary shares

(13) Energy Complex Company Limited

Location 555 PTT Office Building, Vibhavadi-Rangsit Rd., Bangkok 10900
Thailand

Tel. 66 (0) 2537-1961

Fax 66 (0) 2537-1962

Type of Business Operate in Real Estate Business

Percent of Interest PTTEP holds 50 %

Number of Issued Shares 80,000,000 ordinary shares, Baht 10 per share

Number of Shares Owned PTTEP holds 40,000,000 ordinary shares

(14) Orange Energy Limited or Orange

Location 555 PTTEP Office Building, Vibhavadi-Rangsit Rd., Bangkok 10900
Thailand

Tel. 66 (0) 2537-4000

Fax 66 (0) 2537-4444

Type of Business Petroleum Exploration and Production, investment in
petroleum business

Percent of Interest PTTEPO holds 53.9496%

Number of Issued Shares 1,000,000 ordinary shares, Baht 100 per share

Number of Shares Owned PTTEPO holds 539,496 ordinary shares

(15) B 8/32 Partners Limited

Location 123 Suntowers Building B, 27^(th) Floor, Vibhavadi Rangsit
Road, Chomphon, Chatuchak, Bangkok, 10900 Thailand

Tel. 66 (0) 2618-0000

Fax 66 (0) 2618-1001

Type of Business Petroleum Exploration and Production, investment in
petroleum business

Percent of Interest PTTEPO holds 25.00091%

Number of Issued Shares 110,000 ordinary shares, Baht 1000 per share

Number of Shares Owned PTTEPO holds 27,501 ordinary shares

(16) Diamond Petroleum Company Limited or DPC

Location The Office of Scotiabank& Trust Company (Cayman) Limited,
P.O.Box 501 GT, Third Floor, 6 Cardinall Avenue, Scotiabank Building,
George town, Grand Cayman

Mailing Address 555 PTTEP Office Building, Vibhavadi-Rangsit Rd.,
Bangkok 10900 Thailand

Tel. 66 (0) 2537-4000

Fax 66 (0) 2537-4444

Type of Business Petroleum exploration and production, investment in
petroleum business

Percent of Interest PTTEPO holds 100%

Number of Issued Shares 50,000 ordinary shares, USD 1 per share

(17) PTTEP Merangin Company Limited or PTTEPM

Location The Office of Scotiabank& Trust Company (Cayman) Limited,
P.O.Box 501 GT, Third Floor, 6 Cardinall Avenue, Scotiabank Building,
George town, Grand Cayman

Mailing Address 555 PTTEP Office Building, Vibhavadi-Rangsit Rd.,
Bangkok 10900 Thailand

Tel. 66 (0) 2537-4000

Fax 66 (0) 2537-4444

Type of Business Petroleum exploration and production, investment in
petroleum business

Percent of Interest PTTEPO holds 100%

Number of Issued Shares 50,000 ordinary shares, USD 1 per share

(18) Carigali-PTTEPI Operating Company Sdn.Bhd. or CPOC

  Location Tower 1, PETRONAS Twin Towers, Kuala Lumpur City Centre 50088
  Kuala Lumpur, Malaysia

  Mailing Address Level 18, Tower 2 PETRONAS Twin Towers, Kuala Lumpur
  City Centre 50088 Kuala Lumpur, Malaysia

  Tel. (603) 2782-2555

  Fax (603) 2713-9877

  Type of Business Operation in JDA Project

  Percent of Interest PTTEPI holds 50%

  Number of Issued Shares 200,000 ordinary shares, MR (Malaysia Ringitt)
  1 per share

  Number of Shares Owned PTTEPI holds 100,000 ordinary shares

(19) Moattama Gas Transportation Company or MGTC

Location C/O Clarendon House, Church Street, Hamilton HM CX, Bermuda

Mailing Address: No.5 Sacred Tooth Relic Lake Avenue, Punnpin Gone
Quarter No.5, Mayangone Township, Yangon, Union of Myanmar

Tel. (951) 650-977, 660-466

Fax (951) 650-478, 650-479

Type of Business Gas pipeline Transportation in Union of Myanmar

Percent of Interest PTTEPO holds 25.50%

Number of Issued Shares 1,000,000 ordinary shares, USD 0.03 per share

Number of Shares Owned PTTEPO holds 255,000 ordinary shares

(20) Taninthayi Pipeline Company LLC or TPC

Location The Offices Maples and Calder, Attorney-at-Law, Ugland House,
P.O. Box, Grand Cayman

Mailing Address 16 Shwetaung Kyar, Bahan 11201, Yangon, Union of Myanmar

Tel. (951) 526-411, 525-704

Fax (951) 525-698, 525-684

Type of Business Gas Pipeline Transportation in Union of Myanmar

Percent of Interest PTTEPO holds 19.31784%

Number of Issued Shares 100,000 ordinary shares, USD 1 per share

Number of Shares Owned PTTEPO holds 19.31784 ordinary shares

13.2 Share Registrar

Name Thailand Securities Depository Company Limited

Location SET Bldg. 4, 7,10 floor, 62 Ratchadapisek Rd.

  Klongtoey, Bangkok 10110, Thailand

Tel. 66 (0) 2229-2800

Fax 66 (0) 2359-1259

13.3 Debenture Registrar (Debenture Baht 2,500 million)

  Name Thai Military Bank Public Company Limited

  Location 393 Silom Road, Bangrak, Bangkok 10500

  Tel. 66 (0) 2230-5575, 66 (0) 2230-5000

  Fax 66 (0) 2236-7939

13.4 Debenture holders' Representatives

(1) Debenture holders' Representatives (Yankee Bond US$ 200,000,000)

Name The Bank of New York

Location One Temasek Avenue, #02-01 Millenia Tower, Singapore 039192

Tel. (65) 6432-0286

Fax. (65) 6883-0338

(2) Debenture holders' Representatives (Yankee Bond 23,000,000,000 Yen)

  Name Sumitomo Mitsui Banking Corporation

  Location Yusen-Odenmacho Building,

  13-6, Kodenma-cho, Nihonbashi, Chuo-ku, Tokyo 103-0001, Japan

  Tel. 81-3-5640-6634

  Fax. 81-3-5695-5202

13.5 Auditor

Name Office of the Auditor General of Thailand

Location Rama VI Rd., Phayathai, Bangkok 10400, Thailand

Tel. 66 (0) 2618-5803

Fax 66 (0) 2618-5807

13.6 Legal Consultant

  (1) Name Herbert Smith (Thailand) Limited

  Address 1403 Abdulrahim Place

990 Rama IV, Bangkok 10500, Thailand

  Tel. 66 (0) 2657-3888

  Fax 66 (0) 2636-0657

  (2) Name Herbert Smith (Hong Kong) Limited

Address 23^(rd) Floor Gloucester Tower

11 Pedder Street Hong Kong

Tel. (852) 2845-6639

Fax (852) 2845-9099

  (3) Name Hiswara Bunjamin& Tandjung

Address 23^(rd) Floor Gedung BRI II

JI Jend. Sudirmankav. 44-46

Jakarta 10210, Indonesia

Tel. (622) 1 574010

Fax (622) 1 5744670, (622) 1 5744671

  (4) Name Clifford Chance (Thailand) Limited

Address Floor 21 Sindhorn Building Tower 3

130-132 Wireless Road

Pathumwan Bangkok 10330

Tel. 66 (0) 2263-2250

Fax 66 (0) 2263-2240

13.7 Other Advisors

(1) Name Ms. Sukon Kanchanalai

Advisor to the Board of Director on Accounting & Commercial Issues

Address 188 Soi 16 South Tesbanimit Rd.,

Prachanivej I, Chutuchak District, Bangkok 10900, Thailand

Tel. 66 (0) 2589 - 5566

Fax 66 (0) 2537 - 4444

(2) Name Dr.Tongchat Hongladaromp

Advisor on Management Issues

Address 8/48 Sukhumvit 23 Prasarnmitr Condominium
North Klongtoey Sub-District Watana District, Bangkok 10110

Tel. 66 (0) 2258-4363

Fax 66 (0) 2258-4363

(3) Name 19 NOV.95 Co., Ltd.

  Advisor on Petroleum Exploration and Development Issues in the Gulf of
  Thailand and Myanmar M3&M4 Project

  Address 708 Sriyan Soi 1 Nakornchaisri Rd., Bangkok 10300

 Tel. 66 (0) 2243-3674, 66 (0) 2243-3644, 66 (0) 2669-0880 

 Fax 66 (0) 2243-3674

(4) Name Mr. Nopadon Mantajit

  Advisor on Policy and Planning on Investment and Development,
  Management Issues

  Address Technical Petroleum Training Institute

  Shinawatra Tower III, 3 th floor, Vibhavadi-Rangsit Rd, Chatuchak

  Bangkok 10900

Tel. 66 (0) 2 949-2330

  Fax 66 (0) 2 949-2331

(5) Name YBhg Dato’ Mohamad Idris bin Mansor

Advisor on International Exploration and Development Issues

Address 33 Jalan Firus 7/7, Section 7 40000 Shah Alam, Selangor Malaysia

 Tel. (603) 5510 7736 

 Fax (603) 5510 7431