By Florence Tan

SINGAPORE (Reuters) -Oil edged up on Friday following three days of declines on worries about excess supply and slowing demand in the U.S., though prices appeared to be headed for a second week of losses.

Brent crude futures rose 21 cents, or 0.33%, to $63.59 a barrel at 0149 GMT. U.S. West Texas Intermediate crude was at $59.65 a barrel, up 22 cents, or 0.37%.

Brent and WTI are set to fall about 2% this week, down for a second straight week, as major global producers increase output.

The price drop is driven by a surprise 5.2 million-barrel U.S. inventory build that reignited oversupply fears, IG Markets analyst Tony Sycamore said.

“This has been amplified by risk-aversion flows, bolstering the dollar and the ongoing U.S. government shutdown, which continues to cloud

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