Energy Transfer Crude Oil Pipeline (ETCOP)

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

Energy Transfer Crude Oil Pipeline (ETCOP) is an oil pipeline in the United States.[1]

The pipeline is part of the Bakken Pipeline System, along with the Dakota Access Oil Pipeline (DAPL).[1]


The pipeline runs from Patoka, Illinois, to Sunoco Terminal, Nederland, Texas.[2]

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Project Details

  • Operator:
  • Owner: Energy Transfer Partners [38.25%], Enbridge [27.5625%], Phillips 66 [25%], Marathon Petroleum [9.1875%]*[3]
  • Parent company: Energy Transfer Partners [38.25%], Enbridge [27.5625%], Phillips 66 [25%], Marathon Petroleum [9.1875%]*
  • Capacity: 470,000 barrels per day[4]
  • Length: 754 miles[5]
  • Diameter: 30 inches[5]
  • Status: Operating[5]
  • Start year: 2017[5]

*The pipeline is owned and operated by Dakota Access, a joint venture between Energy Transfer Partners (38.25%), MarEn Bakken Company holds (36.75%) and Phillips 66 (25%). MarEn Bakken is a joint venture between Marathon Petroleum and Enbridge Energy Partners.[6] Marathon Petroleum has a 25% stake in MarEn Bakken, and Enbridge has a 75% stake.[7]


In 2012, it was announced that a 770-mile section of the Trunkline pipeline will be converted to crude oil pipeline to transport Canadian and Bakken Shale oil from Patoka, Illinois, to St. James, Louisiana.[8] Trunkline is a natural gas pipeline system that brings gas from the Gulf coast to Indiana, owned by Energy Transfer Partners. It had been operating since 1947.[9] This project was cancelled.[10]

In 2014, the Energy Transfer Crude Oil Pipeline Project (ETCOP) was announced. Starting in Patoka, Illinois, the pipeline will run through Illinois, Kentucky, Tennessee, Mississippi, Arkansas, and Louisiana, and its terminus will be the Sunoco Terminal near Nederland, Texas. ETCOP will use 678 miles of the existing 30-inch Trunkline, which will be converted and reversed. In addition, the ETCOP line will consist of 62 miles of new 30-inch-diameter pipe and 40 miles of converted 24-inch-diameter pipe. The pipeline will have a capacity of 470,000 bpd, with potential for expansion to 570,000 bpd.[1][10][11]

In Patoka, Illinois, the ETCOP will be connected with the Dakota Access Oil Pipeline (DAPL). Both ETCOP and DAPL are part of the Bakken Pipeline System. The Bakken pipeline began operatiing in second quarter 2017.[1]

According to June 2020 data from the U.S. Energy Information Administration (EIA), 686 miles were converted from natural gas pipeline and 68 miles of pipeline were a new build. The pipeline is expandable to 570,000 barrels per day. It was completed in the second quarter of 2017.[5]


Energy Transfer Partners and Sunoco Logistics Partners announced the pipeline project on June 25, 2014.[12] In October 2014, Phillips 66 acquired 25% stake in the project.[13]

In August 2016, a joint venture of Enbridge (75%) and Marathon Petroleum (25%) agreed to purchase a 49% stake in the pipeline from sponsors Energy Transfer Partners and Sunoco Logistics Partners, for US$2 billion.[14][15] The deal was completed in February 2017 after the final easement was granted.[16]

In December 2016, Energy Transfer Partners and Sunoco Logistic Partners, both subsidiaries of Energy Transfer Equity, announced their merger as Energy Transfer Partners.[17]

Thus as of February 2017, ownership of the Bakken Pipeline System is:[18]

  • Energy Transfer Partners – 38.2%
  • Enbridge – 27.6%[15]
  • Phillips 66 – 25%[18]
  • Marathon Petroleum – 9.2%[15]

Articles and resources


  1. 1.0 1.1 1.2 1.3 Energy Transfer Crude Oil Pipeline (ETCOP), Enbridge website, accessed September 2017
  2. National Energy and Petrochemical Map , FracTracker, February 28, 2020
  3. "Dakota Access Pipeline". NS Energy Business. Retrieved 2022-02-23.
  4. Enbridge’s Energy Infrastructure Assets Enbrdige, July 22, 2020
  5. 5.0 5.1 5.2 5.3 5.4 Cite error: Invalid <ref> tag; no text was provided for refs named eia
  6. "Dakota Access Pipeline". NS Energy Business. Retrieved 2022-02-23.
  7. "Company Page". Retrieved 2022-02-23.
  8. Smith, Christopher E. (2013-02-20). "Enbridge, Energy Transfer to convert Trunkline segment to crude service". Oil & Gas Journal. Retrieved 2016-11-05.
  9. Castaneda, Christopher J.; Smith, Clarance M. (2003). Gas Pipelines and the Emergence of America's Regulatory State: A History of Panhandle Eastern Corporation, 1928–1993. Cambridge University Press. pp. 128–131. ISBN 9780521567329.
  10. 10.0 10.1 "ETP to build Bakken crude line to Nederland". Argus Media. 2014-06-25. Retrieved 2016-11-05.
  11. "Energy Transfer Crude Oil Pipeline Project (ETCOP)" (PDF). Energy Transfer Partners. September 2014. Retrieved 2016-11-05.
  12. Energy Transfer Partners (2014-06-25). "Energy Transfer (ETP) Reveals Bakken Pipeline Open Season". Press release. Retrieved on 2016-12-12.
  13. Aronsen, Gavin (October 28, 2014). "Energy Transfer, Phillips 66 partner on Iowa pipeline". Ames Tribune.
  14. Cryderman, Kelly (2016-08-02). "Enbridge, Marathon Petroleum buy Bakken pipeline stake for $2-billion". The Globe and Mail. Retrieved 2016-11-06.
  15. 15.0 15.1 15.2 Penty, Rebecca (2016-08-03). "Enbridge, Marathon Agree to Buy $2 Billion Bakken Pipe Stake". Bloomberg. Retrieved 2016-11-06.
  16. Johnson, Brooks (2017-02-15). "Enbridge closes on Dakota Access stake". Duluth News Tribune. Retrieved 2017-04-29.
  17. Poole, Claire (2016-11-21). "Is There Value In Sunoco Logistics' Merger With Energy Transfer Partners?". Forbes. Retrieved 2016-12-05.
  18. 18.0 18.1 "Energy Transfer (ETP) Reveals Bakken Pipeline Open Season". Zacks Equity Research. 2016-08-18. Retrieved 2016-12-12.

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