Name
- Political Resident, Persian Gulf, 1822-197113
- Sultan of Muscat and Oman, Āl Bū Sa‘īd Dynasty, 1861-197012
- Petroleum Concessions Limited, 1935-10
- Petroleum Division, 1929-19709
- Anglo-Iranian Oil Company Limited, 1909-19547
- Bahrain Petroleum Company, 1929-7
- Foreign Office, 1782-19687
- Political Agent, Bahrain, 1905-19717
- Arabian American Oil Company, 1933-19884
- Iraq Petroleum Company, 1912-4
- Middle East (Official) Committee, 1940s4
- Colonial Office, 1854-19663
- HM Ambassador to Iran, 1807-19803
- HM Ambassador to Iraq, 1932-3
- HM Ambassador to Saudi Arabia, 1930-3
- Indian Political Service, External Affairs Department, 1937-19473
- Persian Gulf Political Residency, 1822-19713
- Secretary of State for Foreign Affairs, 1782-19683
- Secretary of State for India and Burma, United Kingdom, 1935-19473
- Secretary of State for India, United Kingdom, 1858-19353