A worker with cooking oil in a holding barrel behind an Ashton, Maryland restaurant.
TIM SLOAN/AFP/Getty Images
November 7, 2011 Grease rustling is on the rise, as thieves make off with used restaurant grease. The goo left over from deep-fat frying is prized on the biofuels market. As fuel prices go up, so does the price of recycled grease.
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