From you second link:
It is convenient to take out only those parts of the context that are favourable to you, isn't it?
The total reserves for Alberta, including oil not recoverable using current technology, are estimated at 1,700- 2,500Gb
...
Our consumption continues to increase, as well as our dependence on oil imports. Today, about 59% of the oil consumed in the United States are imported. The deposits of oil sands (oil shale) in the United States are massive. The processing of oil shale has gone through cycles of development and commercialization, all without achieving a competitive cost of production.
...
Our consumption continues to increase, as well as our dependence on oil imports. Today, about 59% of the oil consumed in the United States are imported. The deposits of oil sands (oil shale) in the United States are massive. The processing of oil shale has gone through cycles of development and commercialization, all without achieving a competitive cost of production.
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