The Canada-Newfoundland and Labrador Offshore Petroleum Board has reported a spill at the Terra Nova oil field, although few details have been disclosed on what happened.
An incident report posted on the board's website says 40 litres of crude oil was contained in discharge water at Terra Nova's floating production platform.
The spill happened on Wednesday.
No other details were released on the spill at the field, which is about 350 kilometres southeast of Newfoundland.
The Newfoundland and Labrador offshore oil industry has had several spills over the years, including an incident at Terra Nova in 2004 in which about 40,000 litres of crude spilled directly into the ocean for about four hours.