In addition, joint projects for petrochemicals and gas are on the table, Ramirez said.
Ramirez and his Belarus counterpart Alexander Ozenets signed an agreement during their meeting, broadening existing terms for energy cooperation.
Meanwhile, radio network Union Radio reported Belarus would back Venezuela's bid for a seat on the UN Security Council.
Orinoco could hold up to 1.36 billion barrels of extra-heavy crude oil, of which 390 million barrels could be retrieved, according to government figures.
Belarus receives "heavily" discounted oil and natural gas from Russia, according to the US Central Intelligence Agency (CIA) website.
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