A powerful explosion rocked the Trans-Niger Pipeline, a key conduit for Nigerian crude oil exports, just as the country had begun to increase production and exports.

The fund closed the fourth quarter with a year-to-date performance lead over its benchmark, having benefited from effective strategic and tactical positioning across agriculture and energy.

US stock futures pulled back on Tuesday following two days of gains as investors concerned about economic slowdown looked to the Federal Reserve's policy meeting for insight. Meanwhile, oil futures ...