Introduction 1. Petroleum Contracts: Their subject matter, context and setting 2. The Petroleum Industry in Historic Transition: Permanent Sovereignty over Natural Resources 3. Petroleum Contracts as State Contracts: Their peculiar nature 4. State Contracts in Legal Doctrine: A survey 5. Types of Petroleum Contracts and their evolution 6. The Law Applicable to Petroleum Contracts 7. The Petroleum Business: Main actors and driving forces 8. Stabilisation Clauses 9. State Contracts: Their stabilisation by way of international arbitration Annex: Selected Investor-State Cases Index