(Reuters) - Exxon Mobil confirmed on Wednesday that an oil spill occurred Tuesday on its Pegasus crude pipeline in Ripley County, Missouri - the same line that ruptured thousands of barrels of oil into an Arkansas neighborhood at the end of March. 

An Exxon spokeswoman said a resident notified the company of oil staining on the surface near the pipeline on Tuesday. The cleanup of the one-barrel leak was near completion, she said.

The pipeline was already out of service following a spill in Mayflower, Arkansas, on March 29, Exxon said.