By Laura Sanicola and Andrew Hayley (Reuters) -Oil prices rose on Friday, on track to notch their first weekly rise in two months after benefiting from a bullish forecast from the International Energy Agency (IEA) on oil demand for next year and a weaker dollar. Brent futures rose 21 cents to $76.82 a barrel at 0640 GMT. U.S. West Texas Intermediate (WTI) crude climbed 20 cents to $71.78. Both benchmarks are on course for a modest weekly gain, having been lifted by a mid-week announcement from the U.S. Federal Reserve that it is likely to cut borrowing costs next year. “Oil prices may see a bi…