How to get crude oil from the Athabasca oil sands and from Colorado oil shale - among the world's largest deposits of oil.
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- FrequencyComplete
- PublishedJune 23, 2009 at 2:08 AM UTC
- Length8 min
- RatingClean
How to get crude oil from the Athabasca oil sands and from Colorado oil shale - among the world's largest deposits of oil.