ExxonMobil Baton Rouge Refinery reported that .04 pounds of benzene leaked from a supply line on Monday before the line was quickly repaired, the company said Tuesday.

ExxonMobil notified the National Reporting Center of the leak Monday as a precaution, according to spokeswoman Jennifer Hughes. The leak was contained to the unit, and there was no impact to production.

The Baton Rouge refinery is the second-largest in the country, processing more than 500,000 barrels of oil a day.