Natural gas is delivered by pipeline.
Local distribution companies (gas utilities) take bulk gas piped to them by wholesalers.
The distributors then pump it into a distribution main (at reduced pressure) and deliver it to service lines connected directly to individual customers. 
Nova Scotia had no natural gas distribution companies until 2003.  They had to wait for Sable Island, which only came online in 1999. 
In 2010, pipelines consumed 2,781,366 GJ and emitted 174,504 GHGs tonnes.