A process for hydrogen production, the process comprising the steps of mixing hot water and hot oil to produce a mixed stream; increasing a temperature of the mixed stream to produce a reactor feed; upgrading the reactor feed in the non-catalytic reactor to produce a non-catalytic effluent, wherein a temperature in non-catalytic reactor is between 375° C. and 500° C., wherein the non-catalytic reactor is in the absence of catalyst; upgrading the catalytic feed in the catalytic reactor to produce a reactor effluent, wherein a temperature in catalytic reactor is between 550° C. and 700° C., wherein the catalyst is selected from the group consisting of transition metal oxides, lanthanide oxides, and combinations of the same, separating the reactor effluent in the high pressure separator to produce a gases stream; and separating the gases stream in the gases separator to produce a gas product and a light hydrocarbon stream.