Oil fell to a one-month low on Friday on ahead of an OPEC meeting next week where countries will decide about oil output.
Light sweet crude for January delivery on the New York Mercantile Exchange was down $1.95, or 2.14 percent to $89.06 at 11:53 p.m. Brent crude trading on London's ICE Futures exchange was down $2.12, or 2.33 percent to $89.06.
OPEC members will meet in Abu Dhabi on Wednesday and may boost their output quota. Saudi Oil Minister Ali al-Naimi said crude oil supply was absolutely ample.
On Wednesday, an explosion at a major U.S.-Canada pipeline from Enbridge, Inc. raised concerns, sending prices higher by more than $4. However it eventually retreated, with oil rising just 39 cents.