Three Norwegian labor unions agreed on a wage deal with the owners of floating offshore oil drilling rigs, preventing the outbreak of a strike that would have disrupted exploration, unions and employers said on Wednesday. The deal between the Norwegian Shipowners' Association and the Industry Energy, Safe and DSO labor unions covers 8,250 workers. Unions had said that 1,600 workers on 12 rigs would go on strike initially if the talks failed, but would not disrupt the current production of oil and gas.