The steam-oil ratio, or SOR, is an indicator of the efficiency of a SAGD operation. Generally, an SOR of less than 3 is considered to be an efficient operation. MEG achieved an SOR of 2.4 in 2021 at its Christina Lake project. The eMSAGP process has been shown to significantly reduce the overall steam-oil ratio relative to SAGD. Lower SORs equate to improved efficiencies with reduced greenhouse gas (GHG) emissions and cost per barrel of bitumen produced.