OIL
Brent crude rose to a four-month peak on Friday with traders citing optimism about the global economic recovery,while Brent's premium over U.S. oil futures widened nearly $1 a barrel in heavy spread trading.Brent futures for March rose to a high of $117.07 a barrel, its highest since September. Front-month Brent settled up $1.21 to $116.76 a barrel. For the week, Brent futures gained $3.48, or 3 %. U.S. crude gained 28 cents to trade at $97.77,erasing earlier losses. For the week, U.S. crude futures gained $1.89, nearly 2 %.