Abstract: A method for the integrated production and utilization of synthesis gas for production of mixed alcohols, for hydrocarbon recovery, and for gasoline/diesel refinery, has the following steps: forming a hydrocarbon fuel including coal and/or gas oil; gasifying the hydrocarbon fuel to form synthesis gas that includes hydrogen and carbon monoxide; directing the carbon monoxide and a stoichiometric amount of the hydrogen to an alcohol synthesis unit for the synthesis of mixed alcohols; combusting the remaining hydrogen with oxygen via a downhole gas combustion unit; and adding the water to the combustion to produce high-pressure steam for the recovery of crude oil from the hydrocarbon bearing formation.