Abstract: Disclosed are methods of treating wells and producing fluids from subterranean formations with treatment fluids comprising heteropolysaccharides. In particular, the invention relates to treatment and production methods with fluids containing a heteropolysaccharide, aqueous medium, and an electrolyte, wherein the fluids may further include a gas component, a surfactant and/or an organoamino compound. The fluids render significant drag reduction, good Theological properties and unusually rapid hydration rates.