Commercialising Guyanaโs new oil resources could entail 30-35kg of CO2 per bbl, which is c50% below the oil industry average. Prioritising such low carbon barrels will matter increasingly to investors, as they can reduce total oil industry CO2 by 25%. Hence, they should attract a lower WACC. In Guyanaโs case, the upshot could add $8-15bn of NAV.