Subject
- Second World War (1939-1945)85
- Petroleum industry33
- Exports15
- Petroleum products11
- Petroleum refineries11
- Military recruitment10
- Persian Gulf States (emergency) Order in Council (1939)10
- Shipping10
- Civil defence9
- Merchant shipping8
- Subversive activities7
- Air raid precautions6
- Defence6
- Imports6
- Navicert system6
- War propaganda6
- Employees5
- Radio5
- Security of property5
- Trade (practice)5