1. 'B. 56. Confidential 86/14 - v. BAHRAIN UNALLOTED AREA.' Date: 1939/1939 Language: English Geographic region: Hawar IslandsBahrain
2. 'C-85. 86/30 - I WIRELESS COMMUNICATION BETWEEN BAHRAIN AND SAUDI ARABIA' Date: 1938/1942 Language: English Geographic region: ʻAwālīDhahran
3. 'VOL. B. 60. CONFIDENTIAL 86/14 - vi. BAHRAIN UNALLOTTED AREA.' Date: 1939/1941 Language: English Geographic region: Fasht DibalHawar IslandsZakhnuniya IslandBahrain
4. ‘Oil concession signed by the Shaikh of Bahrein in favour of the Eastern and General Syndicate on the 2nd December 1925 (as revised up to 12th January 1934).’ Date: 1933/1933 Language: English
5. 'Dated 3rd June, 1936. HIS EXCELLENCY SHAIKH Sir HAMAD BIN SHAIKH 'ISA AL KHALIFA, K.C.I.E., C.S.I., SHAIKH OF BAHRAIN AND THE BAHREIN PETROLEUM COMPANY LIMITED. DEED OF MODIFICATION OF LEASE [COPY] dated 29th December, 1934.' Date: 1936/1936 Language: English Geographic region: Bahrein
7. ‘Sketch Map Showing the Approximate Locations of the Bahrein Oil Co's. Establishments and other Important Points’ Date: 1940/1940 Language: English
8. ‘Sketch map showing the approximate locations of the BAHREIN OIL Co’s. establishments and other important points.’ Date: 1939/1939 Language: English Geographic region: Bahrain islands
9. 'Confidential 86/7-I c-66 AERIAL SURVEY OF BAHRAIN IN CONNECTION WITH B.P.C. OPERATIONS' Date: 1934/1936 Language: English Geographic region: Bahrain
10. 'CONFIDENTIAL 86/9-I OIL REFINERY BAHRAIN PETROLEUM COMPANY. C-64' Date: 1935/1936 Language: English Geographic region: Bahrain
11. 'Confidential 86/14-I. B.39. Petroleum Concessions Limited Bahrain' Date: 1936/1936 Language: English Geographic region: Bahrain
12. 'Confidential 86/14-ii B.47 PETROLEUM CONCESSIONS LTD. BAHRAIN' Date: 1936/1938 Language: English Geographic region: Fasht DibalHawar IslandsZubarahBahrain
