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Crude oil (243 words) |
 | Crude oil is the mixture of petroleum liquids and gases (together with associated impurities) pumped out of the ground by oil wells. |
| The price of oil fluctuates quite widely as it is strongly controlled by the levels of supply from OPEC. |
| Crude oil, like coal and natural gas, is generally held to be the product of compression of ancient vegetation over geological timescales. |
| Lists of companies - Wikipedia, the free encyclopedia (94 words) |
| This is an incomplete list of lists of companies. |
| List of companies listed on the Athens Stock Exchange |
| List of companies listed on the London Stock Exchange |
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