To mitigate against the negative impacts of climate change, the amount of anthropogenic CO2 emission in the atmosphere should be minimized. Today, a significant volume of CO2 is utilized in enhanced oil recovery (EOR) projects. CO2 capture consumes considerable energy, which is partly compensated by the energy obtained from the produced hydrocarbons. The objective of this work is to determine exergy efficiency and carbon intensity in CO2 and foam EOR projects based on exergy analysis. The analysis is done for different EOR options, which CO2 captured directly from air. The system considers fraction of exergy investments and greenhouse gas emission in material and work streams of projects.