Abstract: In accordance with a first aspect of the instant invention, there is provided a method of gas pool balancing which provides a method of simultaneously and systematically balancing an entire gas transmission network. In a first embodiment, the instant method operates by identifying pools with input amounts of gas available, numerically distributing that gas throughout a representation of the gas network, and, thereafter, physically distributing gas in that network according to the solution obtained. In another embodiment, the instant method operates by forming a system of equations that define the topology of the gas transmission network. Solution of the resulting system of equations yields a rapid and accurate system-wide solution to the gas balancing problem which heretofore was solved by repeated iterations of an algorithm which balanced one pool at a time.