South Oil Co. doesn't have any place to store the residual oil until the export terminal in the Persian Gulf is operating.

FORBES: Taking Charge

The residual fuel oil market in the U.S. has fallen from 3.5 million barrels a day in 1979 to just 700, 000 barrels a day, for example, as oil- fueled generators have dwindled.

FORBES: Slippery Slope

Residual plusses are near zero interest rates and no inflationary bias with oil peaking.

FORBES: My Country, Right Or Wrong, My Country!

Not only do they reduce reliance on oil, but these substitutes tend to have less of a residual impact on the environment.

FORBES: Making Change