Argentina on Monday urged London's High Court to pause enforcement of a $16 billion-plus United States court judgment over the expropriation of oil and gas company YPF , pending an appeal by the Argentinian government in the U.

The fate of Argentina’s state-run oil company has been thrown into doubt as a U.S. judge ordered the cash-strapped country to give up its 51% controlling stake in YPF.

Argentina is ordered by a U.S. judge to give up its 51% stake in state-run oil and gas company YPF as partial payment of a $16.1B court judgment against the country.