Accounts Payable / Vendor Relations


Karve Energy Inc. has implemented an electronic invoicing solution to improve operational efficiency. Karve’s E-invoicing is an innovative approach to improving our business processes. As a Karve supplier, you can expect the following benefits: The reduction or elimination of paper invoices;

  • Faster routing of invoices for review, coding, and approval within Karve;
  • An electronic record showing invoice history and current approval and payment status;
  • Increased invoice accuracy, minimizing disputes and rejections;
  • Cost reductions in shipping, data entry, invoice storage and scanning; and
  • A more efficient process for handling vendor inquiries.


The following information is required when invoicing Karve:

  • UWI code (provided on the field ticket by the authorized Karve representative ordering the work);
  • AFE number or cost center, please use one or the other, but not both;
  • AFE format “KXXXXXDR”
  • CC format “CONS XX XX-XX-XX”
  • General ledger account coding (i.e. 9910.123);
  • First and last name of Karve recipient; and
  • All back up attachments, including Invoice Document with all Field Tickets, as a PDF file. This backup must be signed by an authorized Karve representative.


Karve strongly encourages all suppliers to register and connect with Cortex Business Solutions as this is now the standard to do work with Karve. Please do not submit both manual and electronic copies of invoices.

Company info:

Questions/interested in signing up:

Vendor/technical support:

Training materials:

PLEASE NOTE: Karve will not accept paper invoices from registered Cortex™ vendors after their sign-on date. All invoices received will be returned to the vendor so that they can be submitted through Cortex™. It is mandatory that all vendors who are currently utilizing Cortex™ to conduct business with other companies add Karve to their system by contacting Cortex™ directly.

Questions or concerns? Please contact vendor relations at


Payment status / general invoice queries / statements:

  • Email:
  • Mail: 1700, 205 5th Avenue SW, Calgary, Alberta, T2P 2V7
  • Phone: 1 (587) 393-8306
  • Fax: 1 (587) 393-8318

Name changes / address changes:

  • Address changes: Please send a signed letter on company letterhead notifying Karve of your current/correct remit to address.
  • Name changes / amalgamations: Please send all certified company change documentation, a signed letter stating details of the change, and a copy of the new invoice reflecting the new corporate legal name and GST number.
Please scan and send your required documentation to the following email address: