a system , apparatus and method for cracking , hydrogenating and extracting oil from underground deposits is presented . an apparatus for extracting low viscosity oil from an oil field includes a gasification unit to generate syngas adapted to hydrogenate and hydrocrack high viscosity oil to produce low viscosity oil . at least one injection well injects the syngas belowground to a location near an upper portion of an oil deposit . at least one production well for recovering and bringing aboveground at least some low viscosity oil that was high viscosity oil that was at least partially hydrogenated and cracked by the syngas to produce the low viscosity oil .