A method of using a fluid formulation for increasing flow, production, or recovery of oil and gas hydrocarbons from a subterranean formation. Components including a peroxygen, surfactant, alkali metal chelate, and a cosolvent into a hydrocarbon bearing subterranean formation having a blockage or accumulation of material. Oxygen or carbon dioxide gas is generated by decomposition of the peroxygen which creates gas pressure in the formation. The formed gas pressure mobilizes, degrades, removes, releases, realigns or redistributes the material causing the blockage or accumulation physically. The aggregate pH of the components is less than about 10 or a concentration of alkali metal chelate is greater than about 0.2% and less than about 5% by weight of non-water components.