1. '86/12-III CONFIDENTIAL A. 85 P.C.L. MUSCAT' Date: 1937/1944 Language: English Geographic region: OmanMuscatDhofar
2. Coll 30/110(1) 'Oil: Oil concessions on the Trucial Coast.' Date: 1934/1936 Language: English Geographic region: Trucial Coast
3. Coll 30/110(2) 'Oil: Oil concessions on the Trucial Coast. Negotiations with Sheikhs. Ras-al-Khaimah Agreement. Abu Dhabi.' Date: 1936/1946 Language: English Geographic region: Trucial Coast
4. Coll 30/175 'Oil: Ajman (Trucial Coast):- Exploration permit for Petroleum Concessions Ltd.' Date: 1939/1944 Language: English