1. 'Agreement relating to the Abu Dhabi Oil Concession [between] His Majesty's Government in the United Kingdom and Petroleum Development (Trucial Coast) Limited' Date: 1940/1940 Language: English Geographic region: Abu Dhabi
2. 'CONFIDENTIAL VOL. B.58. 86/7-X P.C.L. TRUCIAL COAST' Date: 1938/1941 Language: English Geographic region: Abu DhabiAjmanKalba
3. Agreement between [the] Ruler of Abu Dhabi and Petroleum Development (Trucial Coast) Ltd. Date: 1939/1939 Language: English Geographic region: Abu Dhabi
4. Coll 30/110(1) 'Oil: Oil concessions on the Trucial Coast.' Date: 1934/1936 Language: English Geographic region: Trucial Coast