Oil futures gain, but still end with a weekly loss

SAN FRANCISCO (MarketWatch) -- Oil futures climbed 1.4% Friday, finding support from a weaker U.S. dollar and a report that said Iranian oil exports have fallen this month. May crude settled at $106.87 a barrel on the New York Mercantile Exchange, up $1.52. Prices ended the week 0.2% lower versus the April contract, which was the front-month contract last Friday. April crude closed at $107.06 a.