| Petroleum -- History. Matches 2 items |
| Petroleum -- History -- 19th century. Matches 1 item |
| Petroleum -- History -- 20th century. Matches 1 item |
| Petroleum -- History -- 21st century. Matches 1 item |
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Petroleum industry and trade. Matches 6 items See Also: Oil industries. Matches 1 item
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| Petroleum industry and trade -- Africa. Matches 1 item |
| Petroleum industry and trade -- Africa -- Fiction. Matches 2 items |
| Petroleum industry and trade -- Arab countries. Matches 1 item |
| Petroleum industry and trade -- Caribbean Area -- History -- 20th century. Matches 1 item |
| Petroleum industry and trade -- Ecuador -- Finance. Matches 1 item |