A composition for improved hydrocarbon recovery from a formation due to cleanup of a residual viscous material is provided. The composition comprises an acid precursor, the acid precursor operable to trigger an exothermic reaction component; and the exothermic reaction component operable to generate heat, where the heat is operable to reduce a viscosity of the residual viscous material to create a reduced viscosity material, the reduced viscosity material operable to flow from the fractures.