A method for treating a subterranean formation with a foamed system is disclosed. The method includes introducing a fracturing fluid into the formation. The fracturing fluid includes a first solution and a second solution. The first solution includes an ammonium containing compound. The second solution includes a nitrite containing compound. One or both of the solutions further include a foaming agent. The solutions are mixed within the formation to generate a nitrogen gas. The method further includes, allowing the compounds to generate nitrogen in the presence of the foaming agent to form a foam and generate the foamed system within the formation. Generation of the foamed system produces sufficient pressure from volumetric expansion to generate fractures in the formation. The fractures are held open with a proppant provided with the fracturing fluid to create a conductive path for production of fluids from the formation to the wellbore.