Greenhouse gas (GHG) emissions contribute to climate change and can negatively affect the reputation of petroleum companies, being a challenge for their operation. This study evaluates three options for reducing GHG emissions in the Llanito field, located in Santander, Colombia. The first is based on curbing gas flaring, by building natural gas pipelines and promoting the use of the gas. The second considers the installation of a steam recovery unit in a flash tank. The third comprises the CO2 capture and subsequent injection in the hydrocarbon reservoir (CCS), aiming at enhancing oil recovery (EOR). Findings show that, in the first case, emission decreased from 21.05 gCO2/bbl to 16.71 gCO2/bbl. The second case lowered emission intensity by 3.24 gCO2/bbl, and in the third case, emission intensity decreased from 25.01 gCO2/bbl to 17.58 gCO2/bbl. The implementation of the three cases together (case I + case II + case II) has a potential to reduce the emission intensity by 19.01 gCO2/bbl.