Suncor Energy (SU) furnishes 2025 annual report and NI 51-101 notice

Rhea-AI Filing Summary

Suncor Energy Inc. filed a Form 6-K as a foreign private issuer, mainly to make shareholders aware of additional disclosure documents. The filing attaches the company’s 2025 Annual Report to Shareholders for the period ended December 31, 2025 as an exhibit.

The company also notes that, on February 26, 2026, it filed its reports under section 2.1 of Canadian securities rule NI 51-101. These oil and gas disclosure reports are available in Suncor’s annual information form dated February 25, 2026 on SEDAR+.

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FORM 6-K

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SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

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Report of Foreign Private Issuer

Pursuant to Rule 13a - 16 or 15d - 16 of

the Securities Exchange Act of 1934

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For the month of: February, 2026 Commission File Number: 1-12384

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SUNCOR ENERGY INC.

(Name of registrant)

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150 – 6th Avenue S.W.

P.O. Box 2844

Calgary, Alberta

Canada, T2P 3E3

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Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F:

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Form 20-F	​	☐	​	Form 40-F	​	☒

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Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1):  ☐

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Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7):  ☐

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SIGNATURES

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Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

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​	​ ​ ​	SUNCOR ENERGY INC.
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Date:	​	By:
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February 26, 2026	​	“Shawn Poirier”
​	​	Shawn Poirier
​	​	Assistant Corporate Secretary

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EXHIBIT INDEX

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Exhibit	​ ​ ​	Description of Exhibit
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99.1	​	Suncor Energy Inc. 2025 Annual Report to Shareholders for the period ended December 31, 2025
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99.2	​	Form 51-101F4

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Exhibit 99.2

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FORM 51-101F4

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NOTICE OF FILING OF 51-101F1 INFORMATION

On February 26, 2026, Suncor Energy Inc. (the “Corporation”) filed its reports under section 2.1 of NI 51-101, which can be found in the Corporation’s annual information form dated February 25, 2026 under the Corporation’s profile on SEDAR+ at www.sedarplus.ca.

FAQ

What does Suncor Energy Inc. (SU) report in this Form 6-K?

Suncor Energy Inc. uses this Form 6-K to furnish its 2025 Annual Report to Shareholders and to notify investors that it has filed NI 51-101 oil and gas information through its annual information form on SEDAR+.

Which period does Suncor Energy’s 2025 Annual Report in the 6-K cover?

The attached Suncor Energy 2025 Annual Report to Shareholders covers the financial and operational results for the period ended December 31, 2025, providing investors with a full-year view of the company’s performance and activities.

What is Exhibit 99.1 in Suncor Energy’s (SU) Form 6-K filing?

Exhibit 99.1 is Suncor Energy Inc.’s 2025 Annual Report to Shareholders for the period ended December 31, 2025. It contains detailed annual information that complements the brief Form 6-K cover disclosure provided to U.S. investors.

What is Exhibit 99.2 (Form 51-101F4) in Suncor Energy’s Form 6-K?

Exhibit 99.2 is Form 51-101F4, a notice confirming that Suncor has filed its NI 51-101 section 2.1 reports. These Canadian oil and gas disclosure reports are accessible through the company’s annual information form on SEDAR+.

Where can investors find Suncor Energy’s NI 51-101 oil and gas reports?

Suncor Energy’s NI 51-101 section 2.1 reports are available in its annual information form dated February 25, 2026, which is posted under the company’s profile on SEDAR+ at www.sedarplus.ca for public access.

Does this Suncor Energy (SU) Form 6-K include detailed financial results?

The Form 6-K itself does not contain detailed financial tables, but it furnishes Suncor’s 2025 Annual Report to Shareholders as an exhibit, where investors can review the company’s comprehensive financial and operating information.

Filing Exhibits & Attachments

2 documents

Press Releases

• EX-99.1 EX-99.1 5.5 MB
• EX-99.2 EX-99.2 1.9 KB