I live in a pretty standard suburban subdivision in the US. All the houses are 25 years old. I have about 60 coworkers in very similar situations. I think everyone of us has natural gas that was installed when the original company built all the homes in the subdivision over the course of a year. Stuff gets a lot cheaper when everything is put into the ground at the same time. My monthly gas connection fee is $10 so that in the summer my bill is around $19 which is $9 for the water heater and $10 for the connection fee.