Tar Sands.

1. We should extract tar sands first because they are more energy efficient.
2. The oil shale process involves drilling heater holes 1,000 to 2,000 feet down where they heat oil barring shale to very high temperatures. Tar sands are heated with hot water or steam to extract bitumen, which is heavy thick oil.
3. Tar sands are more efficient due to their better EROI.
4. Offshore drilling leads to lower carbon emissions overall.
5. I grab the first pen I see in my book bag, being that I don't want to have to dig for another one.