Union Gas

A Spectra Energy Company

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Interruptible Hub 

The base contract to begin your storage and transportation business with Union Gas. . .

The Interruptible Hub service - which has no setup fee or demand charge - is a standard offering for any shipper requiring basic short-term services to manage their day-to-day gas needs. It serves as the base contract for shippers looking to enhance their storage and transportation service with Union Gas.

The Interruptible Hub service includes: Park & Loan, Transportation, Exchanges and Name Changes (Title Transfers). Simply nominate the service and pay the posted price without any further contracting requirement. If you have a need for services with different parameters or terms, please contact your account manager.



  • All services are interruptible.
  • Nominate and Flow Service: Request service on Unionline – nominate at any NAESB window and service will be scheduled (assuming no asset restrictions). No sales contact required.
  • Interruptible Park and Loan Service:
    • Ability to hold a park balance of 120,000 GJs and a loan balance of 70,000 GJs (subject to credit).
    • HUB Pricing Schedule Section C – Balancing to view current price details.
  • Interruptible Transportation (IT) Service:
    • Provides an IT service between any two points on Union Gas' system.
    • HUB Pricing Schedule Section A – Transport to view points and current price details.
  • Interruptible Exchange Service:
    • Provides the ability to receive/deliver gas at one point on Union Gas' system and receive/deliver an equal amount at an off system point on another pipeline.
    • HUB Pricing Schedule Section B– Exchange to view points and current price details.
    • All exchange services must be nominated 2 hours prior to the timely nomination window.
  • Name Change Service (Title Transfers):
    • A name change allows you to transfer ownership of your gas to another party.
    • Available at all  Union Gas system points.
    • HUB Pricing Schedule Section D– Name Change for current price details.

Receipt and Delivery Points

  • Union Gas system points - Dawn, Parkway, Kirkwall, Union St. Clair (MichCon), Ojibway, and Union Bluewater.
  • Off-System points - Utilized using exchange services - TransCanada, Trunkline, Panhandle, Alliance, and Vector.

Pricing and Fuel

  • Variable Charge (pay as you utilize) - no demand charge.
  • Posted monthly on our website - $Cdn/GJ or $Cdn/MMBtu .
  • No fuel charges.


Contract Term

  • Evergreen contract.

Service Eligibility

Complementary Services

How to Request Service


  • Note: The currency election selected under the Hub application form will determine the billed currency for all future storage and transportation services transacted regardless of the currency indicated on any individual contract.
  • Please reference the Priority of Service Schedule (POS) to better understand where the Hub IT reliability ranks.
Hub Contract Application Form
Contact your account manager.
Learn more

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