Energy Transfer Partners' Trans-Pecos cross-border pipeline launched operations at the end of March, adding an additional 1.4bn cf/d (39.6mn m³/d) to Mexico's natural gas pipeline system.
The 238km (148mi) pipeline runs between the Waha Hub near Fort Stockton, Texas and the US-Mexico border near Presidio, Texas.
Mexican state-owned utility CFE will receive gas from the pipeline. ETP declined to disclose any contract details.
The Trans-Pecos pipeline is one of four privately owned cross-border gas lines slated to start operating by June this year, adding 3.5bn cf/d to Mexican pipeline capacity.
The Roadrunner pipeline that connects to Fermaca's Tarahumara gas pipeline started operations in October last year, ETP´s Comanche Trail pipeline started operations in January and Howard Energy Partners' Nueva Era pipeline will start operations in June.
The four cross-border pipelines will complement an ambitious $16bn Mexican government program that will see the construction of 10,000km of gas pipelines by 2019, adding 85pc more than what the current administration says it inherited in 2012.
Mexico currently imports around half of the country's gas needs, including growing pipeline supply from the US and LNG.
US gas pipeline exports to Mexico in January were 3.8bn cf/d, up from 3.5bn cf/d in December 2016, according to the latest information published by the US Energy Information Administration.
