Thanks so much for the Oil Shale posts.  I was intrigued a few weeks ago when I clicked on an ad on the TOD website that turned out to be a hype for shale oil -- the next Saudi Arabia.  I am really happy that you are putting some science behind these claims.
We would need to mine nearly 40 million ton/day and use nearly 100 Gwh/day of energy to do it in order to mine enough liquid fuel at current use levels. Then we add in extraction and refining energy. At $25,000 capital investment per bbl/day capacity we are looking at maybe $10,000,000,000,000 of capital investment. Wind farms, algae farms, PVs, and batteries start looking very good at those prices.