WTI oil prices were heading for weekly gains of close to 2% in early trading on Friday, supported by an expected Federal Reserve interest rate cut, escalating U.S.-Venezuela tensions and stalled peace talks in Moscow. It would be a second straight week of increases. Prices were little changed at market open on Friday, with Brent crude up 6 cents, or 0.09%, at $63.32 per barrel by 0104 GMT.