I'm never too sure about these "X to oil" things, but it would be nice if one worked out:

Gasification Process Key to Low Cost Diesel

If the investment cost ratioes up (which it never does) you'd be talking about $600,000,000 for a 16,000 gal/day output plant.  Diesel better be about $10/gal for that to work out.
It may not seem so nice when climate change really kicks in.
I guess it depends on how they do this accounting:

"There is little waste, up to 85 percent of the feed material becomes usable liquid fuel at the other end."

If that's on a carbon basis, that's pretty good.

FT process similar in concept to ours.