A method of obtaining a measure of oil and water transmissibility of fluids in a subsurface formation at a location in a well bore, the method comprising the steps of: obtaining data from the formation during logging at the location in the well bore; obtaining data with a permeability logging tool from the formation at the location in the well bore; obtaining data with a viscosity logging tool from the formation at the location in the well bore; obtaining relative permeability data from laboratory tests regarding the formation; processing the obtained data from the logging tools in a computer to obtain a measure of fluid transmissibility in the subsurface formation at the location in the well bore by performing the computer processing steps of: determining a measure of the thickness of the subsurface formation from the data obtained during logging; determining a measure of the relative permeability to oil of the subsurface formation from the obtained data from the permeability logging tool and the relative permeability data obtained from laboratory tests; determining a measure of the relative permeability to water of the subsurface formation from the obtained data from the permeability logging tool and the relative permeability data obtained from laboratory tests; determining a measure of the viscosity of fluids in the subsurface formation from the obtained data from the viscosity logging tool; determining the transmissibility of oil in the subsurface formation at the location in the formation based on the determined measures of the thickness, relative permeability and viscosity; and determining the transmissibility of water in the subsurface formation at the location in the formation based on the determined measures of the thickness, relative permeability and viscosity. obtaining data from the formation during logging at the location in the well bore; obtaining data with a permeability logging tool from the formation at the location in the well bore; obtaining data with a viscosity logging tool from the formation at the location in the well bore; obtaining relative permeability data from laboratory tests regarding the formation; processing the obtained data from the logging tools in a computer to obtain a measure of fluid transmissibility in the subsurface formation at the location in the well bore by performing the computer processing steps of: determining a measure of the thickness of the subsurface formation from the data obtained during logging; determining a measure of the relative permeability to oil of the subsurface formation from the obtained data from the permeability logging tool and the relative permeability data obtained from laboratory tests; determining a measure of the relative permeability to water of the subsurface formation from the obtained data from the permeability logging tool and the relative permeability data obtained from laboratory tests; determining a measure of the viscosity of fluids in the subsurface formation from the obtained data from the viscosity logging tool; determining the transmissibility of oil in the subsurface formation at the location in the formation based on the determined measures of the thickness, relative permeability and viscosity; and determining the transmissibility of water in the subsurface formation at the location in the formation based on the determined measures of the thickness, relative permeability and viscosity. determining a measure of the thickness of the subsurface formation from the data obtained during logging; determining a measure of the relative permeability to oil of the subsurface formation from the obtained data from the permeability logging tool and the relative permeability data obtained from laboratory tests; determining a measure of the relative permeability to water of the subsurface formation from the obtained data from the permeability logging tool and the relative permeability data obtained from laboratory tests; determining a measure of the viscosity of fluids in the subsurface formation from the obtained data from the viscosity logging tool; determining the transmissibility of oil in the subsurface formation at the location in the formation based on the determined measures of the thickness, relative permeability and viscosity; and determining the transmissibility of water in the subsurface formation at the location in the formation based on the determined measures of the thickness, relative permeability and viscosity.