Oil slides on Friday, but climbs for 5th week on supply concerns | Reuters

Oil slides on Friday, but climbs for 5th week on supply concerns | Reuters

Oil prices slid for a second day in a row on Friday, pressured by an unexpected rise in U.S. crude and fuel inventories while investors took profits after the benchmarks touched seven-year highs earlier in the week.

However, both crude benchmarks rose for a fifth week in a row, gaining around 2% this week. Prices were up more than 10% so far this year on concerns over tightening supplies.

Brent futures fell 49 cents, or 0.6%, to settle at $87.89 a barrel, while U.S. West Texas Intermediate (WTI) crude fell 41 cents, or 0.5%, to settle at $85.14.

Earlier in the week, both Brent and WTI rose to their highest levels since October 2014.

"The latest pullback is most likely due to a combination of pre-weekend profit-taking and the absence of fresh bullish catalysts," said PVM analyst Stephen Brennock, noting Thursday's bearish data from the Energy Information Administration (EIA).