Pipeline Maps
The Railroad Commission of Texas maintains a Public Geographic Information System Viewer that allows users to view oil, gas and pipeline data in a map view.
The US Department of Transportation's Pipeline and Hazardous Materials Safety Administration maintains the National Pipeline Mapping System Public Map Viewer. It is a web-based mapping application designed to assist the general public with displaying and querying data related to: gas transmission and hazardous liquid pipelines, liquefied natural gas plants, and breakout tanks. Please note that this application does not contain distribution or gas gathering pipelines.