[thackney]

There are several US pipeline systems that move that much and more every day.

http://www.eia.gov/pub/oil_gas/natural_gas/analysis_publications/ngpipeline/MajorInterstatesTable.html

[bert]

Thanks for the list.

It still doesn’t help me to grasp the enormous numbers though.

[wita]

There are several US pipeline systems that move that much and more every day.

...and so one could surmise the daily pipeline movement would be somewhat or considerably less than the daily production, which must be huge. Though I would have reservations about putting too many eggs in the NG basket.