Wall Street JournalOil Prices RetreatWall Street JournalU.S. oil prices slipped Friday as crude traders refocused on signs of oversupply. Light, sweet crude for June delivery lost 59 cents, or 1%, to $57.15 a barrel on the New York Mercantile Exchange. Bre …

Wall Street JournalOil Prices Rise on Weak DollarWall Street JournalLONDON—Global oil prices rose on Friday, supported by bullish market sentiment and a weaker dollar ahead of key U.S. oil drilling data. The gains extended a recent rally which prompted som …