Crude oil and gasoline prices are near an all-time high. But don't
despair. One scientist has found an alternative source of energy: pig
manure.

[SNIP]

For now, each half-gallon (two-liter) batch of manure converts to only about 9 ounces (0.26 liter) of oil.

[SNIP]

So should oil companies be worried about Zhang?

"Maybe," he said. "I have no support from the oil companies, that's for sure."