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A worker cleans up oil in Mayflower, Ark., on Monday, April 1, 2013, days after a pipeline ruptured and spewed oil over lawns and roadways. (AP Photo/Jeannie Nuss)

Exxon cleans up Arkansas oil spill

Exxon's Pegasus pipeline was shut

after the leak was discovered March 30 in a subdivision

near the town of Mayflower, which spilled thousands of gallons of crude oil in Arkansas. The leak forced the evacuation of 22 homes, and clean up has begun.