Guardian Gas Pipeline

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Summary Information

  • Source: Joliet, Ill.
  • Destination: Green Bay, Wisconsin
  • Ownership: Northern Border Partners (Oneok)
  • Website:
  • Length: kilometres (252 miles)
  • Capacity: per day
  • Status: Operating


  • Guardian Pipeline is a 143-mile interstate natural gas pipeline system that began service in December 2002. It has the capacity to transport 750,000 dekatherms per day (Dth/d) of natural gas from the Joliet Natural Gas Hub Illinois, to Ixonia, Wisc.
  • It was expanded to 252 miles to serve Green Bay in 2006


  • 2002 - Guardian Gas Pipeline entered service
  • 2006 - Guardian announced that it will expand and extend the existing pipeline approximately 106 miles from Ixonia to the Green Bay area
  • 2006 - Northern Border Partners acquired an additional 66%, becoming sole owner
  • 2009 - Pipeline Expansion and Extension Project completed

Other Information

  • -


  1. EIA Natural Gas Pipeline Projects 2000-2009
  2. Northern Border Partners, L.P. To Purchase Remaining Interests in Guardian Pipeline, L.L.C.
  3. Northern Border Partners, L.P. Completes Purchase of Interests in Guardian Pipeline, L.L.C.

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