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Petroleum prospecting. SEE: Petroleum -- Prospecting Matches 1 item
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| Petroleum -- Prospecting. Matches 1 item |
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Petroleum prospecting -- Middle East -- History. SEE: Petroleum -- Prospecting -- Middle East -- History. Matches 2 items
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| Petroleum -- Prospecting -- Middle East -- History. Matches 2 items |
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Petroleum refining -- Ohio -- Lima. SEE: Petroleum -- Refining -- Ohio -- Lima. Matches 1 item
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| Petroleum -- Refining -- Ohio -- Lima. Matches 1 item |
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Petroleum -- Reserves. SEE: Petroleum reserves Matches 4 items
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| Petroleum reserves. Matches 4 items |
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Petroleum -- Reserves -- Fiction. SEE: Petroleum reserves -- Fiction. Matches 1 item
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| Petroleum reserves -- Fiction. Matches 1 item |