Suncor shuts down Sarnia refinery unit after leak

NEW YORK (Reuters) - Suncor Energy Inc shut down an unidentified processing unit at its 75,000 barrel per day refinery in Sarnia, Ontario after a pinhole-sized hydrocarbon leak was discovered on Wednesday.

"We expect minimal to impact to production," said Sneh Seetal, a spokeswoman for the refinery.

She said that the refinery began a safe and controlled shutdown of the affected unit and activated its response plan, which includes notification of neighbors and regulators.

(Reporting By Janet McGurty; Editing by Bernard Orr and Gerald E. McCormick)