Singapore Oil down

Oil prices were mixed after recent declines, but were were on track for the first weekly fall in six weeks, under pressure from surging U.S. supplies and doubts over Russian support for continuing a cut in crude output.
Brent crude futures, the international benchmark for oil prices, were at $61.23 per barrel at 0616 GMT, down 13 cents from their last close.
U.S. West Texas Intermediate (WTI) crude futures were at $55.32 a barrel, up 18 cents. Traders said strong U.S. crude exports were lifting WTI.
Still, crude was on track to fall around 2-4 percent for the week on worries about growth in U.S. production and inventories, after both benchmarks touched 2015 highs last week.
"Russian support for a formalized extension of production cuts at the Nov. 30 OPEC meeting appears questionable, even if only to defer the decision to 1Q18," U.S. investment bank Jefferies said.