Sierrita Gas Pipeline

From Global Energy Monitor


This article is part of the Global Fossil Infrastructure Tracker, a project of Global Energy Monitor.

Sierrita Gas Pipeline, also called the Sierrita Pima Gas Pipeline Expansion, is a natural gas pipeline in Arizona, USA and Mexico.[1]


The pipeline runs from Tucson, Arizona, USA through the Mexican border, near the town of Sásabe.[2]

Loading map...

Project Details

  • Operator: Pemex (35.00%), Kinder Morgan Energy Partners (35.00%), Mitsui & Co (30.00%)[3]
  • Parent Company: Kinder Morgan[1]
  • Capacity: 201 million cubic feet per day[4]
  • Length: 98 km / 60.9 miles[4]
  • Diameter: 36-inches[4]
  • Cost: US$200 million[4]
  • Financing: US$200 million equity investment shared by Pemex, Kinder Morgan Energy Partners, Mitsui & Co[5]
  • Status: Operating[1]
  • Start Year: 2014[4]


The $204 million natural-gas pipeline is 60 miles long, running from Tucson to the Mexican border near the town of Sásabe. The 36-inch-diameter pipeline connects to the Sásabe-Guaymas Gas Pipeline, a pipeline carrying natural gas to Mexican power plants in Sonora and Sinaloa.[2]


In March 2014, the Federal Energy Regulatory Commission (FERC) gave the project its blessing. The commission acknowledged that re-establishing vegetation along the pipeline route might take an average of 76 years, based on the variety of native flora. But the commission concluded that, aside from affecting the endangered Pima pineapple cactus, building and operating the pipeline would pose no significant harmful environmental impacts. The finding is hotly disputed. The Pima County Administrator demanded more than $16 million from Kinder Morgan to address various impacts for which he says FERC is not requiring enough remediation, ranging from environmental impacts to anticipated road repairs to increased costs for the county medical examiner to handle the bodies of additional undocumented migrants who may die in the desert while using the pipeline's right of way. Ranchers, environmental and conservation groups, and the Tohono O'odham Nation also fought the pipeline route, citing concerns about increased smuggling, erosion, and damage to the Tohono O'odham's sacred sites.[2]

Expansion Projects

Puerto Libertad Expansion Project

In April 2020, Kinder Morgan's subsidiary Sierrita Gas Pipeline officially placed an expansion project into commercial service.[1]

Capacity on the Sierrita Pipeline increased from 200 MMcf/d to 627 MMcf/d and may help feed pent-up demand in the state of Sonora, according to Platts Analytics. The Sierrita Pipeline expansion could help serve future demand from projects such as the proposed Mexico Pacific and AMIGO LNG terminals near the city of Puerto Libertad in Sonora state.[1]

Puerto Libertad Expansion Project Details

  • Operator: Sierrita Gas Pipeline[1]
  • Parent Company: Kinder Morgan[1]
  • Capacity: 427 million cubic feet per day[1]
  • Length:
  • Diameter:
  • Status: Operating[1]
  • Start Year: 2020[1]

Sierrita Pima Expansion Project

The expansion adds no additional miles of pipeline, but will increase deliverability of US natural gas exports into northwest Mexico by adding compression capacity.[4]

Sierrita Pima Expansion Project Details

  • Operator: Sierrita Gas Pipeline[4]
  • Parent Company: Kinder Morgan[1]
  • Capacity: 323 million cubic feet per day[4]
  • Length: 0.0 miles[4]
  • Cost: US$56 million[4]
  • Status: Operating[6]
  • Start Year: 2020[4]

Articles and resources


  1. 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 Sue Sitter, North American gas midstream sector prepares for consequential earnings season, S&P Global, April 17, 2020
  2. 2.0 2.1 2.2 Bob Ortega, Proposed gas pipeline divides southern Arizona valley, May 31, 2014
  3. Asset Data, IJGlobal, accessed Aug. 27, 2020
  4. 4.00 4.01 4.02 4.03 4.04 4.05 4.06 4.07 4.08 4.09 4.10 Natural Gas Data, Pipeline Projects Energy Information Agency, July 21, 2020
  5. Sierrita Gas Pipeline Project, IJGlobal, accessed Sep. 18, 2020
  6. In the first half of 2020, about 5 Bcf/d of natural gas pipeline capacity entered service U.S. Energy Information Agency, Aug. 24, 2020

Related articles

External resources

External articles