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Notices

Tableau Outage – Scheduled Maintenance

Posted: October 22, 2026

The Tableau tool and all public reports on the AER website will be unavailable, Thursday, October 29, 2026, from 3:30 p.m. to 5:00 p.m. due to scheduled maintenance. For questions about the outage, contact the Customer Contact Centre at 403-297-8311 ( 1-855-297-8311 toll-free) or inquiries@aer.ca.

This page lists notices of the filing of applications, application amendments, and notices of AER hearings.

A notice may tell you

  • what a project is about,
  • how to get more information about a project,
  • how to file a statement of concern,
  • how to request to participate in a hearing, and
  • what our filing deadlines are.

Most notices are on the Public Notice of Application page, which has automatically generated notices for most applications related to energy development.

In the table of notices below, click on the column heading to change the sort order.

Application ReferenceNotice TypeCompany NameApplication Number(s)Date Sort ascending
Application 1909318Notice of Application - Cheviot Coal MineCardinal River Operations Ltd.1909318, etc.
Application 1909112Notice of Application - Horizon North Pit ExtensionCanadian Natural Resources Limited1909112, etc.
Application 013-00149968Notice of Application - Horizon Oil Sands MineCanadian Natural Resources Limited013-00149968 and 026-00201931
Application 1909172Notice of Application - Vista Coal MineCoalspur Mines (Operations) Ltd.1909172, etc.
Application 1909168Notice of Application - Christina Lake Thermal ProjectCenovus FCCL Ltd.1909168
Application 1909050Notice of Application - Grande Cache Coal MineCST Canada Coal Limited1909050, etc.
Application 18M002Notice of Application - Transfer of OwnershipWhitecap Resources Inc.18M002
Application 1907525Notice of Application - Primerose and Wolf Lake In Situ Oil Sands ProjectCanadian Natural Resources Limited1907525
Application PLA810201Notice of Application - Tansfer of OwnershipCOR4 Oil Corp.PLA810201
Application PLA298Notice of Application - Transfer of OwnershipCOR4 Oil Corp.PLA298