Form 56-1

As of December 31, 2014

PTT Exploration and Production Public Company Limited

Table of Contents

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|          |                                                  | Page  |
+----------+--------------------------------------------------+-------+
| Section  | Business Overview                                |       |
| 1        |                                                  |       |
+----------+--------------------------------------------------+-------+
|          | 1. Policy and Business Operations Overview       | 1     |
+----------+--------------------------------------------------+-------+
|          | 2. Nature of Business Operation                  | 31    |
+----------+--------------------------------------------------+-------+
|          | 3. Risk Factors                                  | 57    |
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|          | 4. PTTEP and its Subsidiaries’ Assets            | 68    |
+----------+--------------------------------------------------+-------+
|          | 5. Legal Dispute                                 | 76    |
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|          | 6. General and Other Significant Information     | 77    |
+----------+--------------------------------------------------+-------+
| Section  | Corporate Governance                             | 1     |
| 2        |                                                  |       |
|          | 7. Securities and Shareholders Information       |       |
+----------+--------------------------------------------------+-------+
|          | 8. Management Structure                          | 9     |
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|          | 9. Corporate Governance                          | 47    |
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|          | 10. Corporate Social Responsibility              | 101   |
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|          | 11. Internal Controls and Risk Management        | 103   |
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|          | 12. Connected Transactions                       | 111   |
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| Section  | Financial Position and Performance               | 1     |
| 3        |                                                  |       |
|          | 13. Significant Financial Information            | 7     |
|          |                                                  |       |
|          | 14. Management Discussion and Analysis of        |       |
|          | Operating Results                                |       |
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| Inf      |                                                  |       |
| ormation |                                                  |       |
| Certi    |                                                  |       |
| fication |                                                  |       |
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| Att      | Information of the Board of Directors,           |       |
| achments | Management and Corporate Secretary               |       |
|          |                                                  |       |
| At       | of the Company                                   |       |
| tachment |                                                  |       |
| 1        |                                                  |       |
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| At       | Directors of Subsidiaries and Associated         |       |
| tachment | Companies                                        |       |
| 2        |                                                  |       |
+----------+--------------------------------------------------+-------+
| At       | Details of Head of the Internal Audit Department |       |
| tachment | and Head of the                                  |       |
| 3        |                                                  |       |
|          | Compliance Department                            |       |
| At       |                                                  |       |
| tachment | Asset Revaluation                                |       |
| 4        |                                                  |       |
|          | Supplementary Information on Petroleum           |       |
| At       | Exploration and Production Activities            |       |
| tachment |                                                  |       |
| 5        |                                                  |       |
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