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Notice of Application
EPEA Application:  020-0149968
OSCA Application:  1939664
Canadian Natural Resources Limited
Horizon Oil Sands Mine and Processing Plant
Diluent Recovery Unit, Heater 31-F-1C Installation

The Alberta Energy Regulator (AER) has received Oil Sands Conservation Act (OSCA) application 1939664 and Environmental Protection and Enhancement Act (EPEA) application 020-00149968 from Canadian Natural Resources Limited (CNRL) seeking approval for the installation of an additional heater (heater 31-F-1C) at the existing Diluent Recovery Unit (DRU), Train 1, Unit 31 at the Horizon Oil Sands Mine and Processing Plant.  

This notice also sets out the deadline for filing statements of concern on both of the applications. See the section below on how to file a statement of concern for filing dates.

Description of the Application
Canadian Natural Resources Limited (CNRL) has applied under Section 67(1) of the Environmental Protection and Enhancement Act (EPEA) to amend EPEA Approval No. 00149968-01-00, as amended, for installation of an additional heater (heater 31-F-1C) at the existing Diluent Recovery Unit (DRU), Train 1, Unit 31 at the Horizon Oil Sands Mine and Processing Plant. CNRL has also applied under the Oil Sands Conservation Act (OSCA) scheme approval 9752I, as the additional heater is a change to the process plant and includes changes to the infrastructure at the Horizon Oil Sands Processing Plant.

The proposed heater installation will occur within the existing disturbed footprint of the Horizon Central Processing Facility (CPF). Horizon occupies most of Townships 096 and 097, Ranges 11 and 12, and extends into Townships 096 and 097, Range 13, all west of the 4th Meridian. The approximate location of the proposed heater within this area will be at SE-20-096-11W4M. 

For a copy of the applications, contact:
Canadian Natural Resources Limited 
Suite 2100, 855 – 2nd Street SW
Calgary, Alberta T2P 4J8
Attention: Kirsten Pinney
Telephone: 403-386-8194
Email: @email

Requirement to File a Statement of Concern 
If you have concerns with these applications, you must file a statement of concern as described below. If you do not file a statement of concern, the AER may approve the applications without further notification.

How to File a Statement of Concern
Statements of concern can be filed online via a web-based form available on the AER website, or you can download the PDF version of this form and it can be mailed, e-mailed, or faxed to the AER using the contact information provided on the form.

For your submission to be considered a valid statement of concern, it must be filed before 4:00 p.m. on November 14, 2022. Send one copy of your statement of concern to Canadian Natural Resources Limited at the name and address above and one copy to:

Regulatory Applications
Alberta Energy Regulator
Suite 1000, 250 – 5 Street SW
Calgary, Alberta  T2P 0R4 
Fax: 403-297-7336
Email: @email

Contents of a Statement of Concern
For your submission to be considered a valid statement of concern, it must include

  1. why you believe that you may be directly and adversely affected by a decision of the AER on the applications;
  2. the nature of your objection to the applications;
  3. the outcome of the applications that you advocate;
  4. the location of your land, residence, or activity in relation to the location of the energy resource activity that is the subject of the applications; and
  5. your contact information, including your name, address in Alberta, telephone number, and email address or, if you do not have an email address, your fax number.

The AER also requests that you include the application numbers in your statement of concern.

Section 49 of the Alberta Energy Regulator Rules of Practice (Rules of Practice) requires that all documents and information filed in a proceeding be placed on the public record. This includes any filed statements of concern. If you file a submission, you must not include any personal information that you do not want to appear on or are not authorized to put on the public record. Section 49(2) of the Rules of Practice states how to apply to the AER for an order to keep information confidential. The Rules of Practice is available on the AER website at

Submissions relating exclusively to compensation for land use are not dealt with by the AER and should be referred to the Alberta Surface Rights Board.

Under section 21 of the Responsible Energy Development Act, the AER does not have the jurisdiction to assess the adequacy of Crown consultation associated with the rights of aboriginal peoples as recognized and affirmed under the Constitution Act, 1982.

For information on AER's application review process, contact the regulatory applications specialist Doug Koroluk, by phone at 403-297-6306 or by email to @email

Issued at Calgary, Alberta, on October 14, 2022.
Sean Sexton, General Counsel