The United States gave its backing Tuesday to UN efforts to resolve differences between Libya’s rival administrations over the management of the central bank without cutting off vital oil income. The US embassy said the move by the UN Support Mission in Libya “offers a path forward to resolve the crisis” following the eastern administration’s announcement on Monday that it was suspending operations at all oil fields and export terminals under its control. That move came amid a deepening rift between Libya’s rival governments after a series of events which the eastern administration said were a…