Venezuela's state-owned oil company PDVSA, whose subsidiary PDV Caribe owns 49 per cent of Petrojam, is facing more international pressure after the United States on Monday targeted Venezuela's government with new sanctions and called for allies to freeze PDVSA's assets after deadly violence blocked aid from reaching the crisis-hit country during the weekend.
News that more sanctions could be imposed on PDVSA comes days after the Jamaican Senate passed a bill for the Government to acquire Venezuela's stake in Petrojam.
The US also took its pressure campaign to the United Nations Security Council, asking the body to discuss the situation in Venezuela.
The U.S. Treasury Department's sanctions were imposed on four Venezuelan state governors allied with the government of embattled President Nicolas Maduro, blocking any assets they control in the United States.
The new sanctions were announced in Bogota, Columbia as U.S. Vice President Mike Pence and opposition leader Juan Guaido met with members of the Lima Group, a bloc of nations from Argentina to Canada dedicated to peaceful resolution of the Venezuelan crisis.
Mr. Pence said the United States would stand by Mr. Guaido until freedom is restored in Venezuela.
He also said tougher measures were coming.