25. Coll 30/217(1) 'Trans-Arabian Pipe Line (Persian Gulf - to Mediterranean)' Date: 1945/1947 Language: English Geographic region: KoweitTrans-JordanPalestine
26. Coll 6/67(6) 'Boundaries of South-Eastern Arabia and Qatar: Trucial Coast Oil Concessions' Date: 1940/1948 Language: English Geographic region: Jebel NakshKhor-el-OdeidSaudi Arabia
27. Coll 6/57 'U.S.A.: Saudi Relations with U.S.A.' Date: 1931/1947 Language: English Geographic region: Dhahran
28. Coll 6/64 'South-Eastern Boundaries in [Arabia] – Anglo-Turkish Convention of 1913. Attitude of U.S.A.' Date: 1913/1934 Language: English Geographic region: QatarSaudi Arabia
29. Coll 6/91 'Saudi Arabia. Policy of H.M.G. Qn. of credits and guarantee of assistance to Ibn Saud.' Date: 1939/1945 Language: English
30. Coll 6/79 'Oil: Oil concessions in South East Arabia (Rub'al Khali).' Date: 1936/1937 Language: English Geographic region: Ruba' al Khali
31. File 10/5 I Saudi Arabia: Hasa Oil Concession; visit of Major Holmes to Saudi Arabia; Kuwait blockade. Date: 1932/1935 Language: English Geographic region: Al-HasaKuwait