Norwegian billionaire Kjell Inge Roekke has reportedly launched a bid for full control of industrial holding firm Aker RGI, valuing it at about $1.09 billion. Roekke, who is chairman of Aker RGI and already owns almost two-thirds of the firm after a raid last year, said he wants to delist Aker RGI from the Oslo bourse if his new bid succeeds.