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by narrator
1190 days ago
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Oil and gas are different than metals though because some deposits spurt out of the ground, while others require heroic drilling, pumping and refining efforts that take more energy to realize. This is the concept of energy returned on energy invested (EROEI). When it takes more energy to get the oil out of the ground than is in the oil, it might be better to use the energy for something else and leave the oil in the ground. |
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