UPDATE 1-Unplanned repairs hamper Suncor's 2012 oil sands output
* 2012 output seen at low end of target range
* Repairs made to oil sands plant in early Nov.
* Shares down C$0.10 at C$32.58 in Toronto
CALGARY, Alberta, Dec 6 (Reuters) - Unplanned maintenance at Suncor Energy Inc's oil sands operation has pushed production to the low end of its forecast range for the year despite the startup of a new production unit, Canada's largest energy company said on Thursday.
Suncor said average oil sands output in 2012 is now expected to be closer to 325,000 barrels per day than 340,000 bpd due to unplanned repairs at the company's base plant in northern Alberta in early November. In October, it had trimmed the upper end of its forecast.
In 2011, its oil sands production averaged 326,500 bpd.
Production in November averaged 318,000 bpd, down 18,000 bpd from the previous month, the company said.
However, the repairs to the oil sands plant are complete and the operation pumped 380,000 bpd at the end of November, it said.
Earlier this week, Suncor said it expected oil sands production to increase 12 percent and overall oil and gas output 8 percent in 2013. Capital spending is pegged at C$7.3 billion. Continued...