The payout includes the approximately $8.4 billion of damages Burford sought plus about $7.6 billion of 8% prejudgment interest running from May 3, 2012, about 2-1/2 weeks after the seizure.
Argentina, which is in dire financial straits including a scarcity of foreign exchange reserves, pledged an immediate appeal.
Shareholders' $8.43 billion damages estimate was based on Argentina's seizure of the YPF shares on April 16, 2012, which they said transferred "control."
But the judge found it "telling" that Argentine officials treated April 16 as the seizure date, which stripped Repsol of its power to run YPF and distribute capital.
The judge also called 8% interest "appropriate and equitable," and "well within the range" imposed by Argentine courts.
Persons:
Loretta Preska, Burford, Preska, Axel Kicillof, Gabriela Cerruti, Cerruti, Nate Raymond, Jonathan Stempel, Adam Jourdan, Rodrigo Campos, Mark Porter, Will Dunham, Richard Chang
Organizations:
YPF, U.S, District, Burford Capital, Petersen Energia Inversora, Eton Park Capital, Jefferies, Petersen, Eton Park, Argentina, International Monetary Fund, IMF, Argentine, Thomson
Locations:
Argentina, U.S, Manhattan, Burford, London, New York, Buenos Aires, Qatar, China, Boston