Methods and systems relate to generating a flow of steam and splitting the flow of steam to enable both its injection into a formation to assist in oil recovery and its introduction into a pathway where the steam is used for generating electricity and capturing carbon dioxide (CO2). At least part of the CO2 that is captured comes from burning of fuel used to generate the steam. Steam assisted gravity drainage requires the steam that is injected to have a higher pressure than the steam that is needed for CO2 capture. Exhaust steam from a steam turbine used to generate the electricity reduces pressure of the steam prior to use of the steam for capturing CO2.