The total revenues for the fourth quarter of 2011 increased 15% to $327.22m, compared to $285.02m for the same period a year ago.

Transaction and clearing fee revenues increased 14% to $287m which was driven primarily by record trading volume in the futures and OTC energy segments.

Operating income rose 23% to $194.81m, compared to $158.58m for the same period in the previous year.

The company’s operating margin and the effective tax rate for the fourth quarter of 2011 was 60% and 29% respectively.

ICE SVP and CFO Scott Hill said that from investments in Brazil, to refinements of their most important benchmark contracts, to significant enhancements of their trading platform and clearing services, the ICE team delivered numerous initiatives to strengthen their platform for growth.