Oil futures edged to a three-week high Friday as market participants assessed falling stockpiles at a key U.S. storage hub and ongoing tension between Russia and the West. Light, sweet crude for May delivery settled up 39 cents, or 0.4%, at $101.67 a barrel on the New York Mercantile Exchange, the highest settlement since March 7. Brent crude on the ICE futures exchange rose 24 cents, or 0.2%, to $108.07 a barrel. Brent posted a 1.1% gain for the week. U.S. prices rose 2.2% for the week. A three-day closure of the Houston Shipping Channel due to a fuel-oil spill on Saturday boosted prices early in the week. After Wednesday, traders focused on falling supplies in Cushing, Okla., a key storage hub where the Nymex contract is priced. A storage glut has built up in Cushing as U.S. oil production rapidly increased without sufficient transportation channels to connect […]