Patagonia Oil Corp. has reportedly acquired Rochâs 10% interest in the Llancanelo block, boosting its stake to 39% after having done the same earlier with PentaNovaâs 29%. YPF remains operator with 61% of the 27-sq km block in Mendoza (NeuquÃ©n Basin), with heavy oil plans. Patagoniaâs actual farmin to the permit (11% in Apr â17) is still pending Mendoza approval. 
Alianza Petrolera Argentina has agreed to acquire a 10% stake in the Llancanelo block from Roch (->0%, YPF 50% op, Patagonia Oil 11%, PentaNova 29%).