Rolls-Royce has won an order worth £7m to deliver power and propulsion systems and equipment for offshore service vessel owner Island Offshore.The vessel, which will be built at Vard shipyard in Norway, is due for delivery in January 2016.The deal follows previous orders placed by Island Offshore for two Rolls-Royce designed vessels, which are due for delivery in 2015 from the same shipyard.Jørn Heltne, the group's senior vice president of sales, ship design & systems, said: "We are honoured and delighted to announce this contract, the fifth this year with Island Offshore, and look forward to the continuation of a long lasting relationship with both Island Offshore and the Vard Group." Shares in the company had declined 0.4% to 936.20p by 10:49.