New York Times: The oceans might not be big enough for sharp-elbowed renewable energy developers. Aspiring power producers are claiming sweeping stretches of sea along the East Coast, sometimes overlapping each other and igniting modern-day allegations of “claim jumping.” Open water miles from shore is the newest frontier for prospectors, as vague notions persist about who in the federal government presides over the ocean depths. A jurisdictional dispute between two federal agencies — the Department …