The highest value for oil is going to be feedstocks for chemicals, ... It's pretty much indefensible to just burn it in SUVs.
I can't see that they give a cite, but it might have been at TED - http://www.ted.com/s...hitesides&x=0&y=0 .
In the process of looking, I came across an online version of an old History of Standard Oil from 1904. The first chapter or two talk about all of the things that petroleum was used for - gasoline isn't mentioned. ;-) It's a fascinating book.
http://www.history.r.../tarbell/MAIN.HTM
The quote you're looking for may be in there, but it didn't jump out at me.
HTH!
Cheers,
Scott.