As with everything else, it’s all about economic feasibility. This is the story of kerogen (oil shale), and could be a huge one, or it could just stay in the ground for a few more centuries until we figure out how to get it out of the rock without breaking the bank. Oil shale is not conventional oil that can flow through geological formations. It is a fine-grained sedimentary rock containing kerogen which is a fossilized mixture of insoluble organic material that, when heated, breaks down into crude oil and natural gas. For this reason, oil…

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via OilPrice.com Daily News Update http://oilprice.com/Energy/Crude-Oil/Kerogen-Oil-Shale-The-Next-Rock-of-Ages.html