Subject
- Petroleum industry[remove]28
- Imperialism6
- Concessions, Oil, Iraq5
- Concessions4
- Bilateral relations3
- First World War (1914-1918)3
- Diplomacy2
- Mergers2
- Meteorology2
- Petroleum2
- Petroleum refineries2
- Press coverage2
- Second World War (1939-1945)2
- Standards2
- Strikes2
- Working conditions2
- Agents1
- Coal industry1
- Colonial administration1
- Concessions, Oil, Persia1