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| 17 July 2017 |
oil and gas extraction |
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| 17 July 2017 |
oil prices |
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| 17 July 2017 |
oil refineries |
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| 17 July 2017 |
oil refineries |
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| 17 July 2017 |
oil shale See lignite/brown coal |
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| 17 July 2017 |
own use in electricity, CHP and Heat |
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| 17 July 2017 |
oxygenates |
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| 17 July 2017 |
paraffin waxes |
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| 17 July 2017 |
patent fuel |
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| 17 July 2017 |
Peat |