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Alliance Chicago Exchange (ACE Hub)

​​​​The Alliance Chicago Exchange "ACE Hub" is a market hub offering the following services:

Enhanced Title Transfers

An administrative, no-charge service that enables gas transported by FT-1 shippers to the ACE Hub to transfer title to others for:

  • delivery;
  • title transfers to another shipper; and/or
  • nomination of the gas under a PAL transaction

This service is offered to any market participants who execute a Title Transfer Agreement.


Interruptible Wheeling (IW) service provides transportation between points in the ACE Hub via displacement. IW service is nominated between two ACE Hub points and is contingent upon scheduled gas receipts at delivery points in the ACE Hub with interconnecting parties and the availability of capacity at the requested ACE Hub delivery point. The charge for IW service will be based on the applicable rate and quantity of service scheduled each day.

Park and Loan

This service provides the ability to park gas or obtain a loan of gas utilizing the pipeline system's operationally available line pack capacity. Alliance proposes three different types of PAL services:

  • Term PAL, a service subject to the operational availability of line pack capacity. In a Term PAL agreement, Alliance will reserve a certain amount of line pack capacity that a shipper will be charged a reservation-type rate on a daily basis for the agreed-upon quantity and duration of the Term PAL transaction.
  • Nom PAL, a service which allows a customer to nominate service in each nominating cycle, subject to the operational availability of line pack capacity, for one Gas Day. The charge for the service will be based on a daily usage rate and the quantity of gas parked or loaned.
  • Auto PAL, a park-and-loan service where shippers may contract with Alliance for transactions that allow automatic nominations of a park or loan on the shipper's behalf to manage imbalances, subject to the operational availability of line pack capacity.

Please visit the Becoming a Shipper​​ section to sign-up.

 Contact Us

Customer Service Hotline

403-517-6277; Option 1​

Pricing Desk

403-517-6277; Option 4

For more information regarding ACE credit applications contact:

Sharon Ch​en-Xue

Analyst, Counterparty Risk

Kevin Sundvall