2. '86/21 - II P.C.L. Exploration of Trucial Hinterland. B 51' Date: 1938/1938 Language: English Geographic region: BaraimiJebel HafitMuscatJebel Faiyah
3. '86/21 - III B.65. Trucial Hinterland Exploration' Date: 1939/1945 Language: English Geographic region: BaraimiJebel HafitMuscatJebel Faiyah
4. 'VOL. B. 60. CONFIDENTIAL 86/14 - vi. BAHRAIN UNALLOTTED AREA.' Date: 1939/1941 Language: English Geographic region: Fasht DibalHawar IslandsZakhnuniya IslandBahrain
5. 'File 35/64 III Minerals in Oman. Madrasai geologists' researches' Date: 1901/1912 Language: English
6. 'File 35/64 Mineral deposits in Dhofar' Date: 1943/1943 Language: English Geographic region: Dhofar
7. 'File 38/1 II P. C. L. Exploration' Date: 1947/1949 Language: English Geographic region: Trucial CoastBuraimi
8. 'File 38/1 Vol I, P. C. L. Exploration' Date: 1945/1947 Language: English Geographic region: Jabal FaiyahBuraimiWadi Al GorTrucial Coast
9. 'File 82/1 IV (F 79) Anglo Persian Oil Company Arab Side (Kuwait, Bahrain, Nejd)' Date: 1925/1932 Language: English Geographic region: البحرينالكويتنجدكوهماندراس تنورهرأس تنورهزلاق
10. 'File 1/A/38 II Negotiations with Bin Saud re: Eastern boundary of Saudi Arabia with Qatar & Trucial Oman.' Date: 1935/1935 Language: English Geographic region: QatarSaudi ArabiaAbu DhabiTrucial Oman
11. 'File 39/11 (12/13) Magnetic observations in Bahrain by Kuwait Oil Company' Date: 1936/1937 Language: English