Oil can be produced synthetically: http://en.wikipedia.org/wiki/Fischer%E2%80%93Tropsch_process http://en.wikipedia.org/wiki/Fischer%E2%80%93Tropsch_process Th

Oil can be produced synthetically: http://en.wikipedia.org/wiki/Fischer%E2%80%93Tropsch_process http://en.wikipedia.org/wiki/Fischer%E2%80%93Tropsch_process Though the FT process is quite bad from a CO2 emissions POV.