Global oil prices, which had cooled off in the recent trading sessions, firmed up yesterday after analysts at Goldman Sachs predicted crude oil would touch $105 a barrel in the next few years.As a result, the Nymex U.S. light crude oil for May delivery jumped $1.41 to $55.40 a barrel, while the London Brent crude added $1.33 to close at $54.43 per barrel.The metal category saw the Comex gold rise $1.60 to settle at $431.10 an ounce.