The total amout of heavy oil was not known.
What was the total amount of heavy oil available at the Roncador field?
3 billion barrels.
3 billion bbl.
Qual era o total de óleo pesado disponível no campo de Roncador?
Quantas toneladas de óleo pesado havia no campo de Roncador?
Três bilhões de barris.
3 bilhões de barris.