North Atlantic Drilling Ltd. (NADL) , the rig company controlled by billionaire John Fredriksen, will extend a deadline to complete deals with Russia’s OAO Rosneft (ROSN) that include $4.25 billion in contracts amid concern over trade sanctions, a person familiar with discussions said. The deadline for breaking the accords will be extended from Nov. 10, said the person, asking not to be named because the talks are private. North Atlantic, a unit of Seadrill Ltd. (SDRL) , is considering alternative assignments for two rigs due to start operating for Rosneft next year, the person said. North Atlantic and Rosneft rushed to sign five-year contracts for five offshore rigs at the end of July, just days before the European Union broadened sanctions against Russia to target its energy industry over the country’s role in the conflict in Ukraine. Seadrill, which owns 70 percent of Hamilton, Bermuda-based North Atlantic, said at […]