Gas Supply - St Helens, Merseyside? I have to receive gas disconnected from a relatives house, its has...

I have to receive gas disconnected from a relatives house, its has be many years since they have it disconnected at the meter, but now I necessitate to have it done outside so that the house can be demolished. I enjoy phone Brit Gas and they have no documents. Could someone from St Helens, Merseyside tell me who the major gas supplier is.