Good UX design is about trying to understand what people need and then trying to solve that problem in the simplest way possible. Get rid of clutter, make things simple, and make it as easy as possible for people to do what you want them to do.
How is it that all the gas suppliers can send there gas down the same pips to us ? The answer to that is the gas suppliers all have contracts with the different gas suppliers who work the gas fields.
The gas is divided into different pipelines that run parallel to each other. Each pipeline has its own capacity and the gas supply companies can decide how much gas they can send down each pipeline. So if one pipeline is full, gas will be diverted to another pipeline.