Acquisition Summary

Ovintiv Canada ULC (Ovintiv) has completed its acquisition of NuVista Energy Ltd. (NuVista) on February 3, 2026.

This page has been established to support the onboarding of new vendors, and the updating of current vendors, who will be providing goods and services to Ovintiv by way of the acquisition.

Please navigate through this document by clicking on the heading to expand and contract the topics of interest to you.

Accounts Payable

Invoicing System

Enverus OpenInvoice system (OI) is being used by both companies for invoice submission.  NuVista utilized the ‘Invoice’ module, where Ovintiv is using ‘Invoice,’ ‘Ticket’ and ‘PriceBook’ modules. Ovintiv ‘Operations Teams’ using the OI-Ticket module are Drilling, Completions, Facilities, Field Operations, Road and Lease. 

Invoicing Timeline 

February 3, 2026 – Acquisition close date

February 6, 2026, 4pm MST, last day for invoice submission to NuVista

From close date to February 6, 2026, please continue to bill NuVista for services and equipment as you have in the past through OI–Invoice module, NuVista as customer, for service/activity periods up to and including February 2, 2026. 

February 13, 2026, 4pm MST, Ovintiv OpenInvoice will be ready for invoice and ticket submission

Billing for services and equipment with a February 2, 2026, and prior service/activity date (regardless of invoice date) which would have been directed to NuVista but missed the NuVista OI cutoff date, are to be directed to OI–Invoice module, Ovintiv as customer.

Note: Invoice backup must now be changed to show Ovintiv Canada ULC as the customer instead of NuVista Energy Ltd. 

Billing for services and equipment with a February 3, 2026, and forward service/activity date (regardless of invoice date) to be directed as follows:

Items for ‘Operations Teams’ to OI-Ticket module, Ovintiv as company.
Note: Coding is required within the Ticket module.

Items related to ‘Other Teams’ (Human Resources, Information Technical Services, Legal, Corporate, Office, etc.), to OI-Invoice module, Ovintiv as customer. 

Note: Ovintiv may dispute billed items for: submission to incorrect modules, invalid OI-Ticket coding, incorrect service/activity date timelines, invalid PriceBook line items, incorrect customer on invoice backup.

Invoicing – Ovintiv

Ovintiv is using the Enverus Openlnvoice system (OI) including ‘Invoice,’ ‘Ticket’ and ‘Pricebook’ modules.

  • If you are currently submitting invoices to Ovintiv then you can start invoicing Ovintiv as per the ‘Invoicing Timeline’ for the acquired assets.
  • If you currently do not have access to submit invoices to Ovintiv, you will need to be enabled or onboarded into Ovintiv OI-Invoice by contacting: ap-openinvoice.support@ovintiv.com

Please review Ovintiv’s OpenInvoice Billing requirements using this link: Ovintiv Supplier Requirements Guide 01.27.25.pdf

Invoices sent to Ovintiv must include backup which lists the customer’s name and address as: 

Ovintiv Canada ULC

500 Centre Steet SE
PO Box 2850
Calgary, AB, Canada T2P 2S5
Tel: 403.645.2000

Payments

Banking Information & Fraud Prevention Notice

To help protect Ovintiv and our vendors from payment fraud, please do not submit EFT / ACH or other banking information unless it is specifically requested by our Accounts Payable or D365 Master Data team responsible for vendor setup.

As invoices are received and reviewed, Ovintiv will proactively contact vendors if banking details are required for secure payment setup or updates.

Unsolicited banking information cannot be processed and may result in delays.

Payment Timelines

You will notice different messages posted to the Invoice Journal section of your invoices in Openlnvoice as they are being processed and paid.

  • When the invoice is approved for payment by Ovintiv, you will see a status of ‘Approved’ in the journal.
  • A status of ‘Payment Posted’ will appear once the invoice has been exported into Ovintiv’s financial system. Please note, this does not mean the invoice has been paid, and it may stay in this status for a few days if it has not yet aged to payment terms.
  • A status of ‘Paid’ will appear once the invoice has met terms and payment has been issued. Please note, our system calculates due dates based on the day the invoice was first submitted in Openlnvoice, and the payment terms on your Ovintiv MSA or Vendor account. For example, with Net28 payment terms, an invoice submitted in Openlnvoice on August 9th would be due for payment on September 6th. If your invoices are submitted with an early payment term selected in Openlnvoice, and the invoice is approved before the early-pay deadline, the due date will match the early-pay due date on the electronic invoice.
Supply Management

Service Agreements

To the extent that your company has an Ovintiv Master Service and Supply Agreement, please be advised that upon close it will supersede existing Master Agreements with NuVista Energy Ltd. for any services provided to Ovintiv and will become the governing agreement for all ongoing and future services regarding same. A formal notification requiring acknowledgement will be provided to your company through ISNetworld. If your company will be providing ongoing services and does not have a Master Service and Supply Agreement with Ovintiv, the Ovintiv Supply Management Contracts team will reach out to you at its earliest convenience.

More information is available here: Prospective Suppliers – Ovintiv

If you currently have a fully executed Master Service and Supply Agreement with Ovintiv and are connected and compliant in ISNetworld, no further action is necessary.

PriceBooks

Our sourcing team will be evaluating any active PriceBooks and will reach out to you with further instructions. In the interim, if you have any PriceBook related inquiries, please email PriceBook.Support@ovintiv.com.

Field Ticketing

Depending on the area/type of work you may be required to use OpenInvoice’s Ticket module for ticket submissions. An Ovintiv contact person will notify you if you need to be onboarded to Ovintiv’s field ticketing system over the coming months.

Safety Requirements for Field Service Providers

If your company will be providing ongoing services to Ovintiv, and performs any of the following activities, you will be required to establish a connection to Ovintiv through ISNetworld to comply with Ovintiv’s EH&S requirements.

  • Your company is performing services onsite in the field.
  • Your company hires subcontractors or third parties to perform work onsite in the field.
  • Your company trucks/transports to field locations and/or loads or unloads deliverables.
  • Your company is an air charter carrier performing field-based services (e.g., aerial photography).
  • Your company installs tagged equipment (e.g., pumps, compressors, vessels).
  • Your company installs bulk materials (e.g., pipe supply and install, concrete supply and placement).
  • Your company is an Ovintiv-designated Vendor Managed Contractor (VMC).

Once you have been contacted by Ovintiv’s Supply Management Contracts team, you will be connected to Ovintiv Canada’s site. During this phase, you will have access to Ovintiv’s ISN scorecard, orientation, and other safety requirements and expectations. This is your opportunity to get a head start in fulfilling the necessary requirements. Ovintiv will populate your agreement data upon it being fully executed.

There will be a 90-day transition period to allow you time to fulfill the pre-qualification requirements. It is expected that by the end of the 90 days, you will have completed the scorecard requirements. Ovintiv requires service providers to maintain a ‘PASS’ grade to be cleared for work. Ovintiv’s ISN grading criteria is available to you through your ISN account for you to monitor your progress and grade.

Once you have fulfilled the pre-qualification requirements, you will be connected to Ovintiv in ISN for the duration of your work tenure with Ovintiv.

Ovintiv’s Start Work Safely Authorization (SWSA) Process Requirements

Ovintiv uses the Start Work Safe Authorization (SWSA) process to authorize and close out work on our sites. The SWSA is Ovintiv’s digital safe work permit that is required to be filled out prior to the start of any work, to identify hazards, controls and levels of supervision. SWSAs are normally initiated at the worksite, however there are times when SWSAs are provided remotely. The expectation is that an SWSA will always be in place prior to the commencement of work.

ISNetworld Scorecard and Safety Expectations

  1. A possible change in insurance requirements. Requirements will be available to you once a representative of your company acknowledges receipt and understanding of Ovintiv’s Service Provider Expectations Manual (SPEM) – available through your ISN Account or online at ovintiv.com/supply-chain-management/current-supplier/. It is the company’s responsibility to ensure that every worker conducting work on an Ovintiv location is familiar with the requirements of their organization and that those requirements meet or exceed our own set forth in the SPEM.
  2. Core safety program requirements: There are fifteen (15) required ‘core’ safety programs that every service provider working for Ovintiv must have, regardless of the type of work. These expectations, along with other work-type specific expectations, are communicated through Ovintiv’s SPEM. (via your ISN Account).
  3. Orientations and Training
    1. The Energy Safety Canada Common Safety Orientation (CSO) is required to be completed by any individual working on Ovintiv locations prior to the start of work. This can be found online at energysafetycanada.com.
    2. Ground Disturbance/Electrical Safety Orientation – these may be assigned to your company employees (through ISN) depending on responses in the questionnaire.
    3. Additional training requirements are listed in SPEM.
  4. Total Recordable Frequency Rating (safety statistical data) will need to be uploaded into ISN for the previous three (3) years of service.
  5. Drug and Alcohol Program requirements: Service providers are required to be enrolled and maintain compliance with a drug and alcohol program that meets or exceeds Ovintiv’s. This can be accomplished by reviewing the requirements online at ovintiv.com/supply-chain-management/current-supplier/.
Contact Information

Listed below is contact information should you have any questions throughout this process.

  • ISN Technical Support: 800-976-1303