Iron Horse Pipeline

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

Iron Horse Pipeline is an operating oil pipeline in Wyoming, USA.[1]


The pipeline will run from the Powder River Basin in Wyoming, USA to Guernsey, Wyoming, USA.

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Project Details

  • Owner: Tallgrass Energy (50%), Silver Creek Midstream (50%)
  • Proposed capacity: 200,000 barrels per day
  • Length: 128.7 kilometers / 80 miles[2]
  • Diameter: 16-inches[2]
  • Status: Operating[2]
  • Start Year: 2019[2]


The Iron Horse pipeline is a joint venture between Tallgrass Energy and Silver Creek Midstream. It transports crude oil from the growing Powder River Basin to the Guernsey, Wyoming oil hub. It runs approximately 80-miles. The 16-inch Iron Horse pipeline will consist of 40 miles of new-build and 40 miles of gas-to-oil conversion pipe.[3]

At Guernsey, shippers will have access to the Tallgrass Pony Express Pipeline and other pipelines accessible through Tallgrass Terminals’ Guernsey Terminal. Iron Horse has an initial capacity of approximately 100,000 barrels per day, expandable to 200,000 barrels per day.[3]

In May of 2019, Tallgrass Energy placed a temporary embargo of deliveries on its Tallgrass Iron Horse Pipeline due to extensive flooding on the Cimarron River in Oklahoma.[4]

Articles and resources


  1. Planned Pipelines, Pipeline News, accessed October 2018
  2. 2.0 2.1 2.2 2.3 Petroleum & Other Liquids, Movements, Energy Information Administration, June 4, 2020
  3. 3.0 3.1 Iron Horse Energy Project Description, Tallgrass Energy, accessed October 2018
  4. Tallgrass Energy places temporary embargo for Iron Horse Pipeline, Reuters, May 24, 2019

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