Name
- Bahrain Petroleum Company, 1929-3
- Petroleum Division, 1929-19703
- Foreign Office, 1782-19682
- Admiralty, 1708-19641
- Anglo-Iranian Oil Company Limited, 1909-19541
- Emir of Kuwait, 1718-1
- HM Ambassador to Iran, 1807-19801
- Indian Political Service, External Affairs Department, 1937-19471
- Minister of State Resident in the Middle East, Cairo, 1941-19451
- Ministry of Power, 1942-19691
- Political Resident, Persian Gulf, 1822-19711
- Qatar Petroleum Company, 1935-1976?1