Southern Trails Eastern Segment is a 431km-long onshore pipeline project operated by Questar Southern Trails Pipeline. This gas pipeline, with a maximum diameter of 20 inches, starts at New Mexico (the US) and ends in Arizona (the US).

The Southern Trails Eastern Segment project started operations in 2002 and is owned by Southwest Gas Holding.

The Southern Trails Eastern Segment project is associated with the 4200km Transwestern.


Information on the pipeline is sourced from GlobalData’s Oil & Gas Pipelines database that provides detailed information on all active and upcoming, crude oil, natural gas, petroleum products and Natural Gas Liquids (NGL) trunk pipelines globally. Not all companies mentioned in the article may be currently existing due to their merger or acquisition or business closure.