SAN FRANCISCO (MarketWatch) — Gains for crude-oil futures picked up steam on the last stretch of floor trading Friday, with prices going north of $109 a barrel and vying to close at their highest since late April. Crude for April delivery /quotes/zigman/2203138 CLJ2 +1.80% advanced $1.50, or 1.4%, to $109.36 a barrel on the...

