Venezuela's top oil official accused Exxon Mobilof "judicial terrorism," but said court orders won by the oil major do not amount to confiscation of $12 billion in assets.

(AP Photo/Donna McWilliam)

Exxon has gone after the assets of state oil company, Petroleos de Venezuela SA, in U.S., British and Dutch courts as it challenges the nationalization of a multi-billion dollar oil project by President Hugo Chavez's government.