SU / Suncor Energy Inc. - Depositi SEC, Relazione annuale, dichiarazione di delega

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: August, 2025 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant files

Suncor Energy declares dividend

Exhibit 99.1 News Release Suncor Energy declares dividend All financial figures are in Canadian dollars. Calgary, Alberta (August 5, 2025) – Suncor Energy’s (TSX: SU) (NYSE: SU) Board of Directors has approved a quarterly dividend of $0.57 per share on its common shares, payable September 25, 2025 to shareholders of record at the close of business on September 4, 2025. Suncor Energy is Canada's le

Certification of the President and Chief Executive Officer

EXHIBIT 99.3 Certification of the President and Chief Executive Officer CERTIFICATION I, Richard Kruger, certify that: 1. I have reviewed this quarterly report for the fiscal quarter ended June 30, 2025 of Suncor Energy Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in ligh

Oil Sands

Exhibit 99.1 News Release Suncor Energy reports second quarter 2025 results Unless otherwise noted, all financial figures are unaudited, presented in Canadian dollars (Cdn$), and derived from the company’s condensed consolidated financial statements which are based on Canadian generally accepted accounting principles (GAAP), specifically International Financial Reporting Standards (IFRS) as issued

Oil Sands

Management’s Discussion and Analysis August 5, 2025 Suncor Energy Inc. (Suncor or the company) is Canada’s leading integrated energy company. Suncor's operations include oil sands development, production and upgrading; offshore oil production; petroleum refining in Canada and the U.S.; and the company’s Petro-CanadaTM retail and wholesale distribution networks (including Canada’s Electric HighwayT

Certification of the Chief Financial Officer

EXHIBIT 99.4 Certification of the Chief Financial Officer CERTIFICATION I, Kris Smith, certify that: 1. I have reviewed this quarterly report for the fiscal quarter ended June 30, 2025 of Suncor Energy Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumsta

Exploration and

Consolidated Statements of Comprehensive Income (unaudited) Three months ended June 30 Six months ended June 30 ($ millions) 2025 2024 2025 2024 Revenues and Other Income Gross revenues (note 3) 12 749 14 014 26 079 27 319 Less: royalties (758) (1 125) (1 765) (2 049) Other (loss) income (note 4) (97) 151 33 299 11 894 13 040 24 347 25 569 Expenses Purchases of crude oil and products 5 101 5 162 9

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: August 2025 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant files

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: August, 2025 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant files

Oil Sands

All financial figures are unaudited and presented in Canadian dollars unless noted otherwise.

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: July, 2025 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant files o

Suncor Energy to release second quarter 2025 financial results

Exhibit 99.1 News Release Suncor Energy to release second quarter 2025 financial results Calgary, Alberta (July 22, 2025) – Suncor Energy (TSX: SU) (NYSE: SU) will release its second quarter financial results on August 5, 2025 before 5:00 p.m. MT (7:00 p.m. ET). A webcast to review the second quarter will be held on August 6, 2025 at 7:30 a.m. MT (9:30 a.m. ET). Representing management will be Ric

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: May, 2025 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant files or

STATEMENT UNDER THE ACT RESPECTING TRANSPARENCY MEASURES IN THE MINING, OIL AND GAS INDUSTRIES (s.1)

Exhibit 99.1 STATEMENT UNDER THE ACT RESPECTING TRANSPARENCY MEASURES IN THE MINING, OIL AND GAS INDUSTRIES (s.1) Fiscal year covered by the statement: from January 1, 2024 to December 31, 2024 Name of the entity filing the statement: Suncor Energy Inc. Name(s) of the subsidiary or subsidiaries for which the entity files the statement, where applicable: Petro-Canada Terra Nova Partnership; Petro-C

Oil Sands

 Exhibit 99.2 CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (unaudited) Three months ended March 31 ($ millions) 2025 2024 Revenues and Other Income Gross revenues (note 3) 13 330 13 305 Less: royalties (1 007) (924) Other income (note 4) 130 148 12 453 12 529 Expenses Purchases of crude oil and products 4 300 4 358 Operating, selling and general 3 297 3 440 Transportation and distribution 448 4

Certification of the Chief Financial Officer

EXHIBIT 99.4 Certification of the Chief Financial Officer CERTIFICATION I, Kris Smith, certify that: 1. I have reviewed this quarterly report for the fiscal quarter ended March 31, 2025 of Suncor Energy Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumst

Certification of the President and Chief Executive Officer

EXHIBIT 99.3 Certification of the President and Chief Executive Officer CERTIFICATION I, Richard Kruger, certify that: 1. I have reviewed this quarterly report for the fiscal quarter ended March 31, 2025 of Suncor Energy Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in lig

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: May 2025 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant files or

Oil Sands

 Exhibit 99.1 Management’s Discussion and Analysis May 6, 2025 Suncor Energy is Canada’s leading integrated energy company. Suncor’s operations include oil sands development, production and upgrading; offshore oil production; petroleum refining in Canada and the U.S.; and the company’s Petro-Canada™ retail and wholesale distribution networks (including Canada’s Electric Highway™, a coast-to-coast

Suncor Energy declares dividend

Exhibit 99.1 News Release FOR IMMEDIATE RELEASE Suncor Energy declares dividend All financial figures are in Canadian dollars. Calgary, Alberta (May 6, 2025) – Suncor Energy’s (TSX: SU) (NYSE: SU) Board of Directors has approved a quarterly dividend of $0.57 per share on its common shares, payable June 25, 2025 to shareholders of record at the close of business on June 4, 2025. Suncor Energy is Ca

Suncor Energy reports voting results from Annual General Meeting

Exhibit 99.1 News Release FOR IMMEDIATE RELEASE Suncor Energy reports voting results from Annual General Meeting Calgary, Alberta (May 6, 2025) – Suncor Energy (TSX: SU) (NYSE: SU) held its Annual General Meeting in Calgary today. A total of 868,548,152 shares (approximately 70.29% of outstanding common shares) were represented in person or by proxy. Shareholders voted as follows on the matters be

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: May 2025 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant files or

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of:  May, 2025 Commission File Number:  1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant files

Oil Sands

TABLE OF CONTENTS  Exhibit 99.2 All financial figures are unaudited and presented in Canadian dollars unless noted otherwise. Production volumes are presented on a working-interest basis, before royalties, except for production volumes from Suncor Energy Inc.’s (Suncor or the company) Libya operations, which are presented on an economic basis. Certain financial measures in this document are not pr

Annual Meeting of Shareholders of SUNCOR ENERGY INC. May 6, 2025 REPORT OF VOTING RESULTS National Instrument 51-102 – Continuous Disclosure Obligations Section 11.3 Matters Voted Upon

Exhibit 99.2 Annual Meeting of Shareholders of SUNCOR ENERGY INC. (“Suncor”) May 6, 2025 REPORT OF VOTING RESULTS National Instrument 51-102 – Continuous Disclosure Obligations Section 11.3 Matters Voted Upon 1. By resolution passed by vote conducted by ballot, the following directors were elected to hold office until the next annual meeting of shareholders: Name Votes For % Votes Against % Ian R.

Suncor Energy reports first quarter 2025 results

Exhibit 99.1 Suncor Energy reports first quarter 2025 results Unless otherwise noted, all financial figures are unaudited, presented in Canadian dollars (Cdn$), and derived from the company’s condensed consolidated financial statements which are based on Canadian generally accepted accounting principles (GAAP), specifically International Financial Reporting Standards (IFRS) as issued by the Intern

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: May, 2025 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant files or

Suncor Energy to release first quarter 2025 financial results and hold Annual General Meeting

Exhibit 99.1 News Release Suncor Energy to release first quarter 2025 financial results and hold Annual General Meeting Calgary, Alberta (April 22, 2025) – Suncor Energy (TSX: SU) (NYSE: SU) will release its first quarter financial results on May 6, 2025 before 5:00 p.m. MT (7:00 p.m. ET). A webcast to review the first quarter will be held on May 7, 2025 at 7:30 a.m. MT (9:30 a.m. ET). Representin

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: April, 2025 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant files

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of:   March, 2025 Commission File Number:   1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant fi

APPENDIX “A” CANADA: THE COMPETITION ACT

Exhibit 99.1 POLICY STATEMENT BUSINESS CONDUCT Number:   CO-PS03 Date Developed:    October 2003 Revision Date: February 6, 2021 Last Reviewed on: March 6, 2025 Document Owner:          CEO & Executive Leadership Team Members Document Contact:      Vice-President Legal Affairs, Corporate At Suncor Energy, sound legal and ethical business practices are fundamental to our sustainability. Our values

FORM 51-101F4 NOTICE OF FILING OF 51-101F1 INFORMATION

Exhibit 99.2 FORM 51-101F4 NOTICE OF FILING OF 51-101F1 INFORMATION On February 26, 2025, 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 26, 2025 under the Corporation's profile on SEDAR+ at www.sedarplus.ca.

CERTIFICATION

EXHIBIT 99-7 CERTIFICATION I, Kris P. Smith, certify that: 1. I have reviewed this annual report on Form 40-F of Suncor Energy Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to

8 and 26

Table of Contents Exhibit 99-2 Audited Consolidated Financial Statements and Notes - Table of Contents MANAGEMENT’S STATEMENT OF RESPONSIBILITY FOR FINANCIAL REPORTING 2 MANAGEMENT’S REPORT ON INTERNAL CONTROL OVER FINANCIAL REPORTING 3 REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM (AUDIT FIRM ID: 85) 4 CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME 6 CONSOLIDATED BALANCE SHEETS 7 CONSOLIDATED STATEMENTS OF CASH FLOWS 8 CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY 9 NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS 10 1.

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ENACTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 99-8 CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ENACTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the annual report of Suncor Energy Inc. (the “Company”) on Form 40-F for the fiscal year ending December 31, 2024 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, RICHARD M. KRUGER, President and Chief Execu

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 40-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 40-F (Check One) ☐ Registration statement pursuant to Section 12 of the Securities Exchange Act of 1934 or ☒ Annual report pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934 For fiscal year ended: Commission File Number: December 31, 2024 No. 1-12384 SUNCOR ENERGY INC. (Exact name of registrant as s

Suncor Energy files annual disclosure documents and renews NCIB

Exhibit 99.1 News Release FOR IMMEDIATE RELEASE Suncor Energy files annual disclosure documents and renews NCIB All financial figures are in Canadian dollars. Calgary, Alberta (February 26, 2025) – Suncor Energy (TSX: SU) (NYSE: SU) has filed its 2024 Annual Report, 2024 Annual Information Form and 2024 Management Proxy Circular. To view the company’s annual disclosure documents, visit Suncor’s pr

Year ended

Table of Contents Exhibit 99-3 Management’s Discussion and Analysis February 26, 2025 -ever MD&A – Table of Contents 2 Consolidated Financial and Operating Summary 5 Suncor Overview 7 Financial Information 12 Segment Results and Analysis 25 Income Tax 26 Fourth Quarter 2024 Analysis 29 Quarterly Financial Data 31 Capital Investment Update 34 Financial Condition and Liquidity 40 Material Accounting Policies and Critical Accounting Estimates 43 Risk Factors 54 Other Items 55 Advisories This Management’s Discussion and Analysis (MD&A) should be read in conjunction with Suncor’s December 31, 2024 audited Consolidated Financial Statements and the accompanying notes.

Commerce City

EXHIBIT 99-1 Annual Information Form dated February 26, 2025 Table of Contents 2 Advisories 3 Abbreviations 4 Corporate Structure 5 General Development of the Business 8 Narrative Description of Suncor’s Businesses 8 Oil Sands 12 Exploration and Production 14 Refining and Marketing 19 Other Suncor Businesses 19 Suncor Employees 20 Ethics, Social and Environmental Policies 21 Statement of Reserves

Crude Oil

EXHIBIT 99-10 Supplementary Oil and Gas Disclosures (unaudited) The following disclosures are presented in accordance with United States Financial Accounting Standards Board (“FASB”) Topic 932 — “Extractive Activities — Oil and Gas” and the U.

Meeting Attendance

TABLE OF CONTENTS  Exhibit 99.1 TABLE OF CONTENTS CONTENTS 1 Invitation to Shareholders 2 About this Management Proxy Circular 3 Meeting Participation, Voting and Proxies: Questions and Answers 8 Business of the Meeting 8 Financial Statements 8 Election of Directors 15 Appointment of Auditor 16 Advisory Vote on Approach to Executive Compensation 16 Shareholder Proposal 17 Board of Directors Compen

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: February, 2025 Commission File Number: 1-12384 SUNCOR E

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: February, 2025 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant fil

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ENACTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 99-9 CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ENACTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the annual report of Suncor Energy Inc. (the “Company”) on Form 40-F for the fiscal year ending December 31, 2024 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, KRIS P.SMITH, Chief Financial Officer of the

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: February, 2025 Commission File Number: 1-12384 SUNCOR E

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: February, 2025 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant fil

Consent of GLJ Ltd. LETTER OF CONSENT

EXHIBIT 99-5 Consent of GLJ Ltd. LETTER OF CONSENT TO: Suncor Energy Inc. The Securities and Exchange Commission The Securities Regulatory Authorities of Each of the Provinces and Territories of Canada Dear Sirs/Mesdames: Re: Suncor Energy Inc. (“Suncor”) We refer to the following reports (the “Reports”) prepared by GLJ Ltd. (“GLJ”): · Reserves Assessment and Evaluation of In Situ Oil Sands Proper

021PDB Fold Fold How to Request a Paper Copy of the Management Proxy Circular Shareholders may request to receive a paper copy of the Management Proxy Circular by mail at no cost for up to one year from the date the Management Proxy Circular was file

Exhibit 99.3 021PCA Fold Fold Have questions about this notice? Call the Toll Free Number below or scan the QR code to find out more. Toll Free – 1-866 964-0492 www.computershare.com/ noticeandaccess Notice of Annual General Meeting and Notice of Availability of Proxy Materials You are receiving this notice as a shareholder of Suncor Energy Inc. (“Suncor”). Suncor has decided to use notice and acc

Consent of KPMG LLP

EXHIBIT 99-4 Consent of KPMG LLP CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM The Board of Directors of Suncor Energy Inc.

Fold Fold . AR2 If you are not mailing back your proxy, you may register online to receive the above financial report(s) by mail at www.computershare.com/mailinglist. Interim Financial Statements – Mark this box if you would like to receive interim f

Exhibit 99.2 . VOTE USING THE TELEPHONE OR INTERNET 24 HOURS A DAY 7 DAYS A WEEK! If you vote by telephone or the Internet, DO NOT mail back this proxy. Voting by mail may be the only method for securities held in the name of a corporation or securities being voted on behalf of another individual. Voting by mail or by Internet are the only methods by which a holder may appoint a person as proxyhol

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: February, 2025 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant fil

CERTIFICATION

EXHIBIT 99-6 CERTIFICATION I, Richard M. Kruger, certify that: 1. I have reviewed this annual report on Form 40-F of Suncor Energy Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: February, 2025 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant fil

Suncor Energy declares dividend

 Exhibit 99.1 FOR IMMEDIATE RELEASE Suncor Energy declares dividend All financial figures are in Canadian dollars. Calgary, Alberta (February 5, 2025) – Suncor Energy’s (TSX: SU) (NYSE: SU) Board of Directors has approved a quarterly dividend of $0.57 per share on its common shares, payable March 25, 2025 to shareholders of record at the close of business on March 4, 2025. Suncor Energy is Canada'

Suncor Energy reports fourth quarter 2024 results

Exhibit 99.1 Suncor Energy reports fourth quarter 2024 results Unless otherwise noted, all financial figures are unaudited, presented in Canadian dollars (Cdn$), and derived from the company’s condensed consolidated financial statements which are based on Canadian generally accepted accounting principles (GAAP), specifically International Financial Reporting Standards (IFRS) as issued by the Inter

Three months ended

TABLE OF CONTENTS  Exhibit 99.2 All financial figures are unaudited and presented in Canadian dollars unless noted otherwise. Production volumes are presented on a working-interest basis, before royalties, except for production volumes from Suncor Energy Inc.’s (Suncor or the company) Libya operations, which are presented on an economic basis. Certain financial measures in this document are not pr

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: February, 2025 Commission File Number: 1-12384 SUNCOR E

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: February, 2025 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant fil

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: February, 2025 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant fil

Suncor Energy Inc. Notice of Meeting and Record Date dated February 5, 2025

EXHIBIT 99.1 Suncor Energy Inc. Notice of Meeting and Record Date dated February 5, 2025 Date: February 5, 2025 800, 324 - 8 Avenue SW Calgary AB, T2P 2Z2 www.computershare.com To: All Canadian Securities Regulatory Authorities Toronto Stock Exchange New York Stock Exchange Subject: SUNCOR ENERGY INC. Dear Sir/Madam: We advise of the following with respect to the upcoming Meeting of Security Holde

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: January, 2025 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant file

Suncor Energy to release fourth quarter 2024 financial results

Exhibit 99.1 News Release Suncor Energy to release fourth quarter 2024 financial results Calgary, Alberta (January 22, 2025) – Suncor Energy (TSX: SU) (NYSE: SU) will release its fourth quarter financial results on February 5, 2025 before 5:00 p.m. MT (7:00 p.m. ET). A webcast to review the fourth quarter will be held on February 6, 2025 at 7:30 a.m. MT (9:30 a.m. ET). Representing management will

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Exhibit 99.1 News Release FOR IMMEDIATE RELEASE Suncor Energy achieves record quarterly and full year operational results (All figures are approximate) Calgary, Alberta (January 6, 2025) – Suncor (TSX: SU) (NYSE: SU) today provided an operational performance update for its upstream and downstream businesses for the 4th quarter and full year of 2024 as summarized below: Upstream Highlights: · Recor

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: January, 2025 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant file

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: December, 2024 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant fil

– 30 –

Exhibit 99.1 News Release FOR IMMEDIATE RELEASE Suncor Energy announces 2025 corporate guidance All financial figures are in Canadian dollars, unless noted otherwise Calgary, Alberta (December 12, 2024) · Growth in upstream consistent with plan to add over 100,000 bbls/d between 2023 and 2026 · Increased refinery utilization reflecting stronger asset performance and market position · Lower oil san

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: November, 2024 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant fil

Update on impact of Canada Post Strike

Exhibit 99.1 News Release FOR IMMEDIATE RELEASE Update on impact of Canada Post Strike Calgary, Alberta (November 22, 2024) – Suncor Energy (TSX: SU) (NYSE: SU) today provides an update on the impact of the national strike of Canadian Union of Postal Workers on the mailing of the company’s quarterly documents. This update is required pursuant to the Alberta Securities Commission’s Blanket Order 51

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: November 2024 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant file

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: November, 2024 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant fil

Oil Sands

TABLE OF CONTENTS  Exhibit 99.1 Management’s Discussion and Analysis November 12, 2024 Suncor Energy Inc. (Suncor or the company) is Canada’s leading integrated energy company. Suncor’s operations include oil sands development, production and upgrading; offshore oil production; petroleum refining in Canada and the U.S.; and the company’s Petro-Canada™ retail and wholesale distribution networks (in

Certification of the President and Chief Executive Officer

EXHIBIT 99.3 Certification of the President and Chief Executive Officer CERTIFICATION I, Richard Kruger, certify that: 1. I have reviewed this quarterly report for the fiscal quarter ended September 30, 2024 of Suncor Energy Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in

Oil Sands

 Exhibit 99.2 CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (unaudited) Three months ended September 30 Nine months ended September 30 ($ millions) 2024 2023 2024 2023 Revenues and Other Income Gross revenues (note 4) 13 905 13 911 41 224 38 617 Less: royalties (1 017) (1 262) (3 066) (2 335) Other income (loss) (note 5) 174 (13) 473 326 13 062 12 636 38 631 36 608 Expenses Purchases of crude oi

Suncor Energy increases dividend

Exhibit 99.1 Suncor Energy increases dividend All financial figures are in Canadian dollars. Calgary, Alberta (November 12, 2024) – Suncor Energy’s (TSX: SU) (NYSE: SU) Board of Directors has approved a quarterly dividend of $0.57 per common share, representing an approximate increase of 5% over the prior quarterly dividend. “Sustained operational improvements across our asset base, the continued

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C.     20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C.     20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: November 2024 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant

Oil Sands

TABLE OF CONTENTS  Exhibit 99.2 All financial figures are unaudited and presented in Canadian dollars unless noted otherwise. Production volumes are presented on a working-interest basis, before royalties, except for production volumes from Suncor Energy Inc.’s (Suncor or the company) Libya operations, which are presented on an economic basis. Certain financial measures in this document are not pr

Certification of the Chief Financial Officer

EXHIBIT 99.4 Certification of the Chief Financial Officer CERTIFICATION I, Kris Smith, certify that: 1. I have reviewed this quarterly report for the fiscal quarter ended September 30, 2024 of Suncor Energy Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circ

Suncor Energy reports third quarter 2024 results

Exhibit 99.1 News Release Suncor Energy reports third quarter 2024 results Unless otherwise noted, all financial figures are unaudited, presented in Canadian dollars (Cdn$), and derived from the company’s condensed consolidated financial statements which are based on Canadian generally accepted accounting principles (GAAP), specifically International Financial Reporting Standards (IFRS) as issued

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: October, 2024 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant file

Suncor Energy to release third quarter 2024 financial results

Exhibit 99.1 Suncor Energy to release third quarter 2024 financial results Calgary, Alberta (October 22, 2024) – Suncor Energy (TSX: SU) (NYSE: SU) will release its third quarter financial results on November 12, 2024 before 5:00 p.m. MT (7:00 p.m. ET). A webcast to review the third quarter will be held on November 13, 2024 at 7:30 a.m. MT (9:30 a.m. ET). Representing management will be Rich Kruge

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: October, 2024 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant file

71644EAJ1 / US71644EAJ10

Exhibit 99.1 News Release Suncor announces early tender results and increase of tender offers for certain outstanding series of notes Calgary, Alberta (October 2, 2024) – Suncor Energy Inc. (“Suncor”) (TSX: SU) (NYSE: SU) announced today the early tender results for its tender offers to purchase for cash certain of its outstanding series of notes (the “Tender Offers”). Suncor also announced that i

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: October, 2024 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 - 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant file

71644EAJ1 / US71644EAJ10

Exhibit 99.1 News Release Suncor announces pricing of tender offers for certain outstanding series of notes Calgary, Alberta (October 3, 2024) – Suncor Energy Inc. (“Suncor”) (TSX: SU) (NYSE: SU) announced today the total consideration payable in connection with its previously announced tender offers (the “Tender Offers”) to purchase for cash: (i) up to C$1,000,000,000 aggregate principal amount (

Extractive Sector Transparency Measures Act - Annual Report

Exhibit 99.3 Extractive Sector Transparency Measures Act - Annual Report Reporting Entity Name Syncrude Canada Ltd Reporting Year From 1/1/2023 To: 12/31/2023 Date submitted 5/28/2024 Reporting Entity ESTMA Identification Number E953333 ◉ Original Submission ○ Amended Report Other Subsidiaries Included (optional field) For Consolidated Reports - Subsidiary Reporting Entities Included in Report: No

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT SUNCOR ENERGY INC. (Exact name of the registrant as specified in its charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT SUNCOR ENERGY INC. (Exact name of the registrant as specified in its charter) Canada 1-12384 98-0343201 (State or other jurisdiction of (Commission file number) (I.R.S. Employer Identification No.) incorporation or organization) 150 - 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada,

EX-2.01.SCH

Parent Company [Member] Suncor Energy Inc Represents the information of Fort Hills Energy Limited Partnership.

EX-2.01.INS

0000311337 su:SyncrudeCanadaLtdMember country:CA su:MunicipalityOfWoodBuffaloMember 2023-01-01 2023-12-31 0000311337 su:FortHillsEnergyLimitedPartnershipMember country:CA su:MunicipalityOfWoodBuffaloMember 2023-01-01 2023-12-31 0000311337 srt:ParentCompanyMember country:GB su:HerMajestysGovernmentOfUnitedKingdomOfGreatBritainAndNorthernIrelandHerMajestysRevenueAndCustomsCumbernauldMember 2023-01-01 2023-12-31 0000311337 srt:ParentCompanyMember country:CA su:ProvinceOfQuebecMember 2023-01-01 2023-12-31 0000311337 srt:ParentCompanyMember su:U.

Extractive Sector Transparency Measures Act - Annual Report

Exhibit 99.1 Extractive Sector Transparency Measures Act - Annual Report Reporting Entity Name Suncor Energy Inc. Reporting Year From 1/1/2023 To: 12/31/2023 Date submitted 5/28/2024 Reporting Entity ESTMA Identification Number E405435 ◉ Original Submission ○ Amended Report Other Subsidiaries Included (optional field) For Consolidated Reports - Subsidiary Reporting Entities Included in Report: Pet

Extractive Sector Transparency Measures Act - Annual Report

Exhibit 99.2 Extractive Sector Transparency Measures Act - Annual Report Reporting Entity Name Fort Hills Energy Limited Partnership Reporting Year From 1/1/2023 To: 12/31/2023 Date submitted 5/28/2024 Reporting Entity ESTMA Identification Number E991999 ◉ Original Submission ○ Amended Report Other Subsidiaries Included (optional field) Not Consolidated Not Substituted Attestation by Reporting Ent

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: September 2024 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 - 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant fil

71644EAJ1 /

Exhibit 99.1 News Release FOR IMMEDIATE RELEASE Suncor announces tender offers for certain outstanding series of notes Calgary, Alberta (September 19, 2024) – Suncor Energy Inc. (“Suncor”) (TSX: SU) (NYSE: SU) announced today the commencement of tender offers to purchase for cash certain of its outstanding series of notes listed in the table below (collectively, the “Notes”) for an aggregate purch

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: August 2024 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant files

Oil Sands

TABLE OF CONTENTS  Exhibit 99.2 All financial figures are unaudited and presented in Canadian dollars unless noted otherwise. Production volumes are presented on a working-interest basis, before royalties, except for production volumes from Suncor Energy Inc.’s (Suncor or the company) Libya operations, which are presented on an economic basis. Certain financial measures in this document are not pr

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Exhibit 99.1 FOR IMMEDIATE RELEASE Suncor Energy reports second quarter 2024 results Unless otherwise noted, all financial figures are unaudited, presented in Canadian dollars (Cdn$), and derived from the company’s condensed consolidated financial statements which are based on Canadian generally accepted accounting principles (GAAP), specifically International Financial Reporting Standards (IFRS)

Certification of the President and Chief Executive Officer

EXHIBIT 99.3 Certification of the President and Chief Executive Officer CERTIFICATION I, Richard Kruger, certify that: 1. I have reviewed this quarterly report for the fiscal quarter ended June 30, 2024 of Suncor Energy Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in ligh

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: August, 2024 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant files

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: August 2024 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant files

Oil Sands

 Exhibit 99.2 CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (unaudited) Three months ended June 30 Six months ended June 30 ($ millions) 2024 2023 2024 2023 Revenues and Other Income Gross revenues (note 4) 14 014 12 434 27 319 24 706 Less: royalties (1 125) (715) (2 049) (1 073) Other income (loss) (note 5) 151 (3) 299 339 13 040 11 716 25 569 23 972 Expenses Purchases of crude oil and products

Oil Sands

TABLE OF CONTENTS  Exhibit 99.1 Management’s Discussion and Analysis August 6, 2024 Suncor Energy Inc. (Suncor or the company) is an integrated energy company headquartered in Calgary, Alberta, Canada. Suncor’s operations include oil sands development, production and upgrading; offshore oil production; petroleum refining in Canada and the U.S.; and the company’s Petro-Canada™ retail and wholesale

Suncor Energy declares dividend

Exhibit 99.1 FOR IMMEDIATE RELEASE Suncor Energy declares dividend All financial figures are in Canadian dollars. Calgary, Alberta (August 6, 2024) – Suncor Energy’s (TSX: SU) (NYSE: SU) Board of Directors has approved a quarterly dividend of $0.545 per share on its common shares, payable September 25, 2024 to shareholders of record at the close of business on September 4, 2024. Suncor Energy is C

Certification of the Chief Financial Officer

EXHIBIT 99.4 Certification of the Chief Financial Officer CERTIFICATION I, Kris Smith, certify that: 1. I have reviewed this quarterly report for the fiscal quarter ended June 30, 2024 of Suncor Energy Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumsta

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: July, 2024  Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant files

Suncor Energy to release second quarter 2024 financial results

Exhibit 99.1  Media Advisory FOR IMMEDIATE RELEASE Suncor Energy to release second quarter 2024 financial results Calgary, Alberta (July 23, 2024) – Suncor (TSX: SU) (NYSE: SU) will release its second quarter financial results on August 6, 2024 before 5:00 p.m. MT (7:00 p.m. ET). A webcast to review the second quarter will be held on August 7, 2024 at 7:30 a.m. MT (9:30 a.m. ET). Representing mana

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: July, 2024 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant files o

Suncor’s Petro-Canada

Exhibit 99.1 FOR IMMEDIATE RELEASE Suncor’s Petro-CanadaTM extends Team Canada Olympic and Paralympic partnerships through 2032 · Partnerships with Canadian Olympic Committee and Canadian Paralympic Committee extended for the next four Games · FACE™ program has supported more than 3,500 athletes and coaches with $14 million · Petro-Canada’s 2024 Olympic and Paralympic Games campaign launches Calga

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: June, 2024 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant files o

Competition Act amendments silence Canadian businesses taking climate action

Exhibit 99.1 News Release FOR IMMEDIATE RELEASE Competition Act amendments silence Canadian businesses taking climate action Calgary, Alberta (June 20, 2024) – Suncor Energy (TSX: SU) (NYSE: SU), one of the largest oil sands companies in Canada, and a member of the Pathways Alliance, is steadfast in our commitment to environmental performance and operational emissions reduction. To support our com

Suncor Energy’s Rich Kruger urges Canada to seize the opportunity its energy resources provide

Exhibit 99-1 News Release Suncor Energy’s Rich Kruger urges Canada to seize the opportunity its energy resources provide Calgary, Alberta (June 6, 2024) – Suncor (TSX: SU) (NYSE: SU) President and Chief Executive Officer Rich Kruger says Canada can increase its prosperity for the benefit of all Canadians while also mitigating the impacts of climate change if government and industry work together.

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: June, 2024 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant files o

As filed with the Securities and Exchange Commission on June 4, 2024

As filed with the Securities and Exchange Commission on June 4, 2024 Registration No.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM F-X APPOINTMENT OF AGENT FOR SERVICE OF PROCESS AND UNDERTAKING

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM F-X APPOINTMENT OF AGENT FOR SERVICE OF PROCESS AND UNDERTAKING A. Name of issuer or person filing (“Filer”): SUNCOR ENERGY INC. B. (1) This is [check one]: x an original filing for the Filer. ¨ an amended filing for the Filer. C. Identify the filing in conjunction with which this Form is being filed: Name of registrant:

LETTER OF CONSENT

Exhibit 5.3 LETTER OF CONSENT TO: Suncor Energy Inc. The Securities and Exchange Commission Dear Sirs/Mesdames: Re: Suncor Energy Inc. (“Suncor”) We refer to the following reports (the “Reports”) prepared by GLJ Ltd. (“GLJ”): · Reserves Assessment and Evaluation of In Situ Oil Sands Properties – Corporate Summary dated February 16, 2024; · Reserves Assessment and Evaluation of Oil Sands Mining Pro

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE CHECK IF AN APPLICATION TO DETERMINE ELIGIBILITY OF A TRUSTE

Exhibit 7.2 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE CHECK IF AN APPLICATION TO DETERMINE ELIGIBILITY OF A TRUSTEE PURSUANT TO SECTION 305(b)(2) ¨ THE BANK OF NEW YORK MELLON (Exact name of trustee as specified in its charter) New York (Jurisdiction o

Calculation of Filing Fee Tables Form F-10 (Form Type) Suncor Energy Inc. (Exact Name of Registrant as Specified in its Charter) Table 3: Combined Prospectuses In US Dollars

Exhibit 107 Calculation of Filing Fee Tables Form F-10 (Form Type) Suncor Energy Inc.

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: May, 2024 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant files or

STATEMENT UNDER THE ACT RESPECTING TRANSPARENCY MEASURES IN THE MINING, OIL AND GAS INDUSTRIES (s.1)

Exhibit 99.1 STATEMENT UNDER THE ACT RESPECTING TRANSPARENCY MEASURES IN THE MINING, OIL AND GAS INDUSTRIES (s.1) Fiscal year covered by the statement: from January 1, 2023 to December 31, 2023 Name of the entity filing the statement: Suncor Energy Inc. Name(s) of the subsidiary or subsidiaries for which the entity files the statement, where applicable: Petro-Canada Terra Nova Partnership; Petro-C

Oil Sands

TABLE OF CONTENTS  Exhibit 99.2 All financial figures are unaudited and presented in Canadian dollars unless noted otherwise. Production volumes are presented on a working-interest basis, before royalties, except for production volumes from Suncor Energy Inc.’s (Suncor or the company) Libya operations, which are presented on an economic basis. Certain financial measures in this document are not pr

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: May 2024 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant files or

– 30 –

Exhibit 99.1 News Release FOR IMMEDIATE RELEASE Suncor Energy reports first quarter 2024 results Unless otherwise noted, all financial figures are unaudited, presented in Canadian dollars (Cdn$), and derived from the company’s condensed consolidated financial statements which are based on Canadian generally accepted accounting principles (GAAP), specifically International Financial Reporting Stand

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: May, 2024 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant files or

Certification of the President and Chief Executive Officer

EXHIBIT 99.3 Certification of the President and Chief Executive Officer CERTIFICATION I, Richard Kruger, certify that: 1. I have reviewed this quarterly report for the fiscal quarter ended March 31, 2024 of Suncor Energy Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in lig

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: May, 2024 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant files or

Certification of the Chief Financial Officer

EXHIBIT 99.4 Certification of the Chief Financial Officer CERTIFICATION I, Kris Smith, certify that: 1. I have reviewed this quarterly report for the fiscal quarter ended March 31, 2024 of Suncor Energy Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumst

Suncor Energy reports voting results from Annual General Meeting

Exhibit 99.1 News Release FOR IMMEDIATE RELEASE Suncor Energy reports voting results from Annual General Meeting Calgary, Alberta (May 7, 2024) – Suncor (TSX: SU) (NYSE: SU) held its Annual General Meeting in Calgary today. A total of 877,654,867 shares (approximately 68.19% of outstanding common shares) were represented in person or by proxy. Shareholders voted as follows on the matters before th

Oil Sands

TABLE OF CONTENTS  Exhibit 99.1 Management’s Discussion and Analysis May 7, 2024 Suncor Energy Inc. (Suncor or the company) is an integrated energy company headquartered in Calgary, Alberta, Canada. Suncor’s operations include oil sands development, production and upgrading; offshore oil production; petroleum refining in Canada and the U.S.; and the company’s Petro-Canada™ retail and wholesale dis

Suncor Energy declares dividend

Exhibit 99.1 News Release FOR IMMEDIATE RELEASE Suncor Energy declares dividend All financial figures are in Canadian dollars. Calgary, Alberta (May 7, 2024) – Suncor Energy’s (TSX: SU) (NYSE: SU) Board of Directors has approved a quarterly dividend of $0.545 per share on its common shares, payable June 25, 2024 to shareholders of record at the close of business on June 4, 2024. Suncor Energy is C

Oil Sands

 Exhibit 99.2 CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (unaudited) Three months ended March 31 ($ millions) 2024 2023 Revenues and Other Income Gross revenues (note 4) 13 305 12 272 Less: royalties (924) (358) Other income (note 5) 148 342 12 529 12 256 Expenses Purchases of crude oil and products 4 358 4 069 Operating, selling and general 3 440 3 424 Transportation and distribution 410 391

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: May 2024 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant files or

Annual Meeting of Shareholders of SUNCOR ENERGY INC. May 7, 2024 REPORT OF VOTING RESULTS National Instrument 51-102 – Continuous Disclosure Obligations Section 11.3 Matters Voted Upon

Exhibit 99.2 Annual Meeting of Shareholders of SUNCOR ENERGY INC. (“Suncor”) May 7, 2024 REPORT OF VOTING RESULTS National Instrument 51-102 – Continuous Disclosure Obligations Section 11.3 Matters Voted Upon 1. By resolution passed by vote conducted by ballot, the following directors were elected to hold office until the next annual meeting of shareholders: Name Votes For % Votes Against % Ian R.

Suncor Energy to release first quarter 2024 financial results, and hold Annual General Meeting of Shareholders

Exhibit 99.1 Media Advisory FOR IMMEDIATE RELEASE Suncor Energy to release first quarter 2024 financial results, and hold Annual General Meeting of Shareholders Calgary, Alberta (April 30, 2024) – Suncor (TSX: SU) (NYSE: SU) will release its first quarter financial results on May 7, 2024 before 5:00 p.m. MT (7:00 p.m. ET). A webcast to review the first quarter will be held on May 8, 2024 at 7:30 a

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: April, 2024 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant files

Suncor Energy to hold Business Update Webcast

Exhibit 99.1 Media Advisory FOR IMMEDIATE RELEASE Suncor Energy to hold Business Update Webcast Calgary, Alberta (April 29, 2024) – Suncor (TSX: SU) (NYSE: SU) will host a webcast to provide investors with a Business Update on May 21, 2024 at 7:30 a.m. MT (9:30 a.m. ET). The webcast will provide a near term business outlook, including an update on progress made by the Company to lower its breakeve

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: April, 2024 Commission File Number: 1-12384 SUNCOR ENER

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: April, 2024 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant files

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: March, 2024 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant files

Canadian Tire Corporation and Petro-CanadaTM Fuel New Adventures with Loyalty Partnership Launch Earn more rewards to redeem more frequently by linking Triangle Rewards® and Petro-PointsTM

Exhibit 99.1 Canadian Tire Corporation and Petro-CanadaTM Fuel New Adventures with Loyalty Partnership Launch Earn more rewards to redeem more frequently by linking Triangle Rewards® and Petro-PointsTM Calgary, Alberta/Toronto, Ontario, March 26, 2024 – Canadian Tire Corporation, Limited (TSX: CTC) (TSX: CTC.A) ("CTC") and Petro-Canada, a Suncor Energy business (TSX: SU) (NYSE: SU), are pleased to

EX-99.1

Annual Report 2023Contents 2023 Highlights Message to Shareholders Advisories Management’s Discussion and Analysis Management’s Statement of Responsibility for Financial Reporting Management’s Report on Internal Control over Financial Reporting Independent Auditor’s Report Audited Consolidated Financial Statements and Notes Supplemental Financial and Operating Information Share Trading Information Leadership and Board Members 1 2 8 10 66 67 68 72 120 144 145 Montreal refinery Our vision is to be Canada’s leading energy provider, respected for our people, performance, sustainability and relationships that together create value-added contributions to society, communities, customers and shareholders.

CERTIFICATION

EXHIBIT 99-7 CERTIFICATION I, Kris P. Smith, certify that: 1. I have reviewed this annual report on Form 40-F of Suncor Energy Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to

Consent of GLJ Ltd. LETTER OF CONSENT

EXHIBIT 99-5 Consent of GLJ Ltd. LETTER OF CONSENT TO: Suncor Energy Inc. The Securities and Exchange Commission The Securities Regulatory Authorities of Each of the Provinces and Territories of Canada Dear Sirs/Mesdames: Re: Suncor Energy Inc. (“Suncor”) We refer to the following reports (the “Reports”) prepared by GLJ Ltd. (“GLJ”): · Reserves Assessment and Evaluation of In Situ Oil Sands Proper

Commerce City

EXHIBIT 99-1 Annual Information Form dated March 21, 2024 Table of Contents 2 Advisories 3 Abbreviations 4 Corporate Structure 5 General Development of the Business 9 Narrative Description of Suncor’s Businesses 9 Oil Sands 14 Exploration and Production 16 Refining and Marketing 21 Other Suncor Businesses 21 Suncor Employees 22 Ethics, Social and Environmental Policies 23 Statement of Reserves Dat

CERTIFICATION

EXHIBIT 99-6 CERTIFICATION I, Richard M. Kruger, certify that: 1. I have reviewed this annual report on Form 40-F of Suncor Energy Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect

Consent of KPMG LLP

EXHIBIT 99-4 Consent of KPMG LLP CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM The Board of Directors Suncor Energy Inc.

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: March 2024 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant files o

Year ended

Table of Contents Exhibit 99-3 Management’s Discussion and Analysis March 21, 2024 -ever MD&A – Table of Contents 2 Consolidated Financial and Operating Summary 5 Suncor Overview 8 Financial Information 14 Segment Results and Analysis 29 Income Tax 30 Fourth Quarter 2023 Analysis 33 Quarterly Financial Data 35 Capital Investment Update 38 Financial Condition and Liquidity 44 Material Accounting Policies and Critical Accounting Estimates 46 Risk Factors 56 Other Items 58 Advisories This Management’s Discussion and Analysis (MD&A) should be read in conjunction with Suncor’s December 31, 2023 audited Consolidated Financial Statements and the accompanying notes.

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ENACTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 99-8 CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ENACTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the annual report of Suncor Energy Inc. (the “Company”) on Form 40-F for the fiscal year ending December 31, 2023 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, RICHARD M. KRUGER, President and Chief Execu

8 and 26

Table of Contents Exhibit 99-2 Audited Consolidated Financial Statements and Notes - Table of Contents MANAGEMENT’S STATEMENT OF RESPONSIBILITY FOR FINANCIAL REPORTING 2 MANAGEMENT’S REPORT ON INTERNAL CONTROL OVER FINANCIAL REPORTING 3 REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM (AUDIT FIRM ID: 85) 4 CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME 8 CONSOLIDATED BALANCE SHEETS 9 CONSOLIDATED STATEMENTS OF CASH FLOWS 10 CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY 11 NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS 12 1.

FORM 51-101F4 NOTICE OF FILING OF 51-101F1 INFORMATION

Exhibit 99.2 FORM 51-101F4 NOTICE OF FILING OF 51-101F1 INFORMATION On March 21, 2024, 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 March 21, 2024 under the Corporation's profile on SEDAR at www.sedar.com.

Crude Oil(3)

EXHIBIT 99-10 Supplementary Oil and Gas Disclosures (unaudited) The following disclosures are presented in accordance with United States Financial Accounting Standards Board (“FASB”) Topic 932 — “Extractive Activities — Oil and Gas” and Subpart 1200 of Regulation S-K (“Subpart 1200”) of the United States Securities and Exchange Commission.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 40-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 40-F (Check One) ☐ Registration statement pursuant to Section 12 of the Securities Exchange Act of 1934 or ☒ Annual report pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934 For fiscal year ended: Commission File Number: December 31, 2023 No. 1-12384 SUNCOR ENERGY INC. (Exact name of registrant as s

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: March, 2024 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant files

Suncor Energy files annual disclosure documents

Exhibit 99.1 News Release FOR IMMEDIATE RELEASE Suncor Energy files annual disclosure documents Calgary, Alberta (March 21, 2024) – Suncor Energy (TSX: SU) (NYSE: SU) has filed its 2023 Annual Report, 2023 Annual Information Form and 2024 Management Proxy Circular. To view the company’s annual disclosure documents, visit Suncor's profile on sedarplus.ca or sec.gov or visit Suncor’s website at sunc

The board of directors (the “

Exhibit 97 EXECUTIVE COMPENSATION CLAWBACK POLICY I. BACKGROUND The board of directors (the “Board”) of Suncor Energy Inc. (“Suncor” or the “Company”) has adopted this Executive Compensation Clawback Policy (the “Policy”) in accordance with Securities and Exchange Commission (“SEC”) rules, the Sarbanes-Oxley Act of 2002, and the New York Stock Exchange (“NYSE”) listing requirements. II. APPLICATIO

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ENACTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

EXHIBIT 99-9 CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ENACTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the annual report of Suncor Energy Inc. (the “Company”) on Form 40-F for the fiscal year ending December 31, 2023 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, KRIS P.SMITH, Chief Financial Officer of the

01YEEF Fold Fold Have questions about this notice? Call the Toll Free Number below or scan the QR code to find out more. Toll Free – 1-866 964-0492 www.computershare.com/ noticeandaccess Notice of Annual General Meeting and Notice of Availability of

Exhibit 99.3 01YEEF Fold Fold Have questions about this notice? Call the Toll Free Number below or scan the QR code to find out more. Toll Free – 1-866 964-0492 www.computershare.com/ noticeandaccess Notice of Annual General Meeting and Notice of Availability of Proxy Materials You are receiving this notice as a shareholder of Suncor Energy Inc. (“Suncor”). Suncor has decided to use notice and acc

. VOTE USING THE TELEPHONE OR INTERNET 24 HOURS A DAY 7 DAYS A WEEK! If you vote by telephone or the Internet, DO NOT mail back this proxy. Voting by mail may be the only method for securities held in the name of a corporation or securities being vot

Exhibit 99.2 . VOTE USING THE TELEPHONE OR INTERNET 24 HOURS A DAY 7 DAYS A WEEK! If you vote by telephone or the Internet, DO NOT mail back this proxy. Voting by mail may be the only method for securities held in the name of a corporation or securities being voted on behalf of another individual. Voting by mail or by Internet are the only methods by which a holder may appoint a person as proxyhol

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: March, 2024 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant files

Meeting Attendance

TABLE OF CONTENTS  Exhibit 99.1 TABLE OF CONTENTS Notice of Annual General Meeting of Shareholders of Suncor Energy Inc. The annual general meeting (the meeting) of shareholders of Suncor Energy Inc. (the corporation) will be held on May 7, 2024, at 10:30 a.m. Mountain Daylight Time (MDT). The meeting will be conducted in a virtual-only format via live webcast online at https://web.lumiagm.com/431

APPENDIX “A” CANADA: THE COMPETITION ACT

Exhibit 99.1 POLICY STATEMENT BUSINESS CONDUCT Number:   CO-PS03 Date Developed:    October 2003 Revision Date: February 6, 2021 Last Reviewed on: March 6, 2024 Document Owner:          CEO & Executive Leadership Team Members Document Contact:      Vice-President Legal Affairs, Corporate At Suncor Energy, sound legal and ethical business practices are fundamental to our sustainability. Our values

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of:   March, 2024 Commission File Number:   1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant fi

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: March, 2024 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant files

Fort McKay First Nation and Suncor Energy to partner on prospective oil sands development opportunity on reserve lands

Exhibit 99.1 News Release FOR IMMEDIATE RELEASE Fort McKay First Nation and Suncor Energy to partner on prospective oil sands development opportunity on reserve lands Calgary, Alberta (March 7, 2024) – Fort McKay First Nation (FMFN) and Suncor (TSX: SU) (NYSE: SU) today announced the signing of a Memorandum of Understanding (MOU) on a prospective oil sands lease development opportunity on Fort McK

Three months ended

TABLE OF CONTENTS  Exhibit 99.1 All financial figures are unaudited and presented in Canadian dollars unless noted otherwise. Production volumes are presented on a working-interest basis, before royalties, except for production volumes from Suncor Energy Inc.’s (Suncor or the company) Libya operations, which are presented on an economic basis. Certain financial measures in this document are not pr

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: February, 2024 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant fil

Suncor Energy declares dividend

Exhibit 99.1 News Release FOR IMMEDIATE RELEASE Suncor Energy declares dividend All financial figures are in Canadian dollars. Calgary, Alberta (February 21, 2024) – Suncor Energy’s (TSX: SU) (NYSE: SU) Board of Directors has approved a quarterly dividend of $0.545 per share on its common shares, payable March 25, 2024 to shareholders of record at the close of business on March 4, 2024. Suncor Ene

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Exhibit 99.3 News Release FOR IMMEDIATE RELEASE Suncor Energy reports fourth quarter 2023 results Unless otherwise noted, all financial figures are unaudited, presented in Canadian dollars (Cdn$), and derived from the company’s condensed consolidated financial statements which are based on Canadian generally accepted accounting principles (GAAP), specifically International Financial Reporting Stan

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: February, 2024 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant fil

Suncor Energy announces upcoming changes to its Board of Directors

Exhibit 99.2 News Release FOR IMMEDIATE RELEASE Suncor Energy announces upcoming changes to its Board of Directors · Michael Wilson and Dennis Houston to retire from the Board · Russell Girling to be appointed Chair of the Board Calgary, Alberta (February 21, 2024) – Suncor Energy (TSX: SU) (NYSE: SU) announced the upcoming retirement of two members of its Board of Directors. Michael Wilson, Chair

EXHIBIT 99.1

EXHIBIT 99.1 News Release dated February 15, 2024, Suncor Energy to release fourth quarter 2023 financial results Media Advisory FOR IMMEDIATE RELEASE Suncor Energy to release fourth quarter 2023 financial results Calgary, Alberta (February 15, 2024) – Suncor (TSX: SU) (NYSE: SU) will release its fourth quarter financial results on February 21, 2024 before 5:00 p.m. MT (7:00 p.m. ET). A webcast to

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: February, 2024 Commission File Number: 1-12384 SUNCOR E

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: February, 2024 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant fil

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: February, 2024 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant fil

Suncor Energy Inc. Notice of Meeting and Record Date dated February 8, 2024

EXHIBIT 99.1 Suncor Energy Inc. Notice of Meeting and Record Date dated February 8, 2024 Date:February 8, 2024 800, 324 - 8 Avenue SW Calgary AB, T2P 2Z2 www.computershare.com To: All Canadian Securities Regulatory Authorities Toronto Stock Exchange New York Stock Exchange Subject: SUNCOR ENERGY INC. Dear Sir/Madam: We advise of the following with respect to the upcoming Meeting of Security Holder

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: January, 2024 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant file

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EXHIBIT 99.1 News Release dated January 3, 2024, Suncor Energy achieves 2023 upstream production corporate guidance News Release FOR IMMEDIATE RELEASE Suncor Energy achieves 2023 upstream production corporate guidance (All figures are approximate) Calgary, Alberta (January 3, 2024) – Suncor (TSX: SU) (NYSE: SU) today provided an operational update for the fourth quarter of 2023, highlighting upstr

Certificate and Articles of Amalgamation of Suncor Energy Inc.

EXHIBIT 99.1 Certificate and Articles of Amalgamation of Suncor Energy Inc. l♦I Innovation, Science and Economic Deve opment Canada Corporations Canada Innovation, Sciences et Developpement economique Canada Co,poratiom Canada Certificate of Amalgamation Certificat de fusion Canada Business Corporations Act Loi canadienne sur /es societes par actions Suncor Energy Inc. Suncor Energie Inc. Corporat

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: January, 2024 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant file

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: December, 2023 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant fil

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Exhibit 99.1 News Release FOR IMMEDIATE RELEASE Suncor Energy announces Kent Ferguson as new Senior Vice President of Strategy, Sustainability and Corporate Development Calgary, Alberta (December 7, 2023) – Suncor (TSX: SU) (NYSE: SU) announced today that Kent Ferguson will be joining the company in January 2024 as Senior Vice President, Strategy, Sustainability and Corporate Development, reportin

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: December, 2023 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant fil

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Exhibit 99.1 News Release FOR IMMEDIATE RELEASE Suncor Energy announces 2024 corporate guidance All financial figures are in Canadian dollars, unless noted otherwise · Upstream production of 770,000 – 810,000 barrels per day, approximately 7% higher than 2023 · Refining capacity utilization strong at an expected 92% to 96% · Fort Hills three-year improvement plan on target, with opportunities to f

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EXHIBIT 99.1 News Release dated November 27, 2023, Suncor Energy announces restart of production at Terra Nova News Release FOR IMMEDIATE RELEASE Suncor Energy announces restart of production at Terra Nova Calgary, Alberta (November 27, 2023) – Suncor Energy (TSX: SU) (NYSE: SU) today announced that the Terra Nova Floating, Production, Storage and Offloading vessel has safely restarted following t

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: November, 2023 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant fil

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EXHIBIT 99.1 News Release dated November 20, 2023, Suncor Energy closes purchase of TotalEnergies’ Canadian operations New Release FOR IMMEDIATE RELEASE Suncor Energy closes purchase of TotalEnergies’ Canadian operations All financial figures are in Canadian dollars, unless noted otherwise Calgary, Alberta (November 20, 2023) – Suncor Energy (TSX: SU) (NYSE: SU) announced today it has closed the t

Certificate and Articles of Amalgamation of Suncor Energy Inc. SCHEDULE A TO ARTICLES OF AMALGAMATION OF SUNCOR ENERGY INC. SUNCOR ÉNERGIE INC. ("Amalco") SHARE TERMS

EXHIBIT 99.1 Certificate and Articles of Amalgamation of Suncor Energy Inc. SCHEDULE A TO ARTICLES OF AMALGAMATION OF SUNCOR ENERGY INC. SUNCOR ÉNERGIE INC. ("Amalco") SHARE TERMS Suncor Energy Inc. is authorized to issue: (A) an unlimited number of preferred shares issuable in series designated as Senior Preferred Shares; (B) an unlimited number of preferred shares issuable in series designated a

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: November, 2023 Commission File Number: 1-12384 SUNCOR E

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: November, 2023 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant fil

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: November, 2023 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant fil

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: November, 2023 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant fil

Suncor Energy increases quarterly dividend

Exhibit 99.1 New Release FOR IMMEDIATE RELEASE Suncor Energy increases quarterly dividend All financial figures are in Canadian dollars. Calgary, Alberta (November 14, 2023) – Suncor Energy’s (TSX: SU) (NYSE: SU) Board of Directors has approved a quarterly dividend of $0.545 per share on its common shares representing an increase of approximately 5% over the prior quarter dividend. “The increase i

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Exhibit 99.1 News Release FOR IMMEDIATE RELEASE Suncor Energy announces $1.5 billion medium term note offering All financial figures are in Canadian dollars, unless noted otherwise Calgary, Alberta (November 9, 2023) – Suncor Energy (TSX: SU) (NYSE: SU) announced today that it has priced an offering of $1.5 billion in aggregate principal amount of senior unsecured notes. The offering will be compr

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: November, 2023 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant fil

Certification of the Chief Financial Officer

EXHIBIT 99.4 Certification of the Chief Financial Officer CERTIFICATION I, Kris Smith, certify that: 1. I have reviewed this quarterly report for the fiscal quarter ended September 30, 2023 of Suncor Energy Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circ

Oil Sands

TABLE OF CONTENTS  Exhibit 99.2 All financial figures are unaudited and presented in Canadian dollars unless noted otherwise. Production volumes are presented on a working-interest basis, before royalties, except for production volumes from Suncor Energy Inc.’s (Suncor or the company) Libya operations, which are presented on an economic basis. Certain financial measures in this document are not pr

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: November 2023 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant file

Oil Sands

TABLE OF CONTENTS  Exhibit 99.1 MANAGEMENT’S DISCUSSION AND ANALYSIS November 8, 2023 Suncor Energy Inc. (Suncor or the company) is an integrated energy company headquartered in Calgary, Alberta, Canada. Suncor’s operations include oil sands development, production and upgrading; offshore oil and gas; petroleum refining in Canada and the U.S.; and the company’s Petro-Canada™ retail and wholesale d

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: November 2023 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant file

Certification of the President and Chief Executive Officer

EXHIBIT 99.3 Certification of the President and Chief Executive Officer CERTIFICATION I, Richard Kruger, certify that: 1. I have reviewed this quarterly report for the fiscal quarter ended September 30, 2023 of Suncor Energy Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in

Oil Sands

 Exhibit 99.2 Consolidated Statements of Comprehensive Income (Loss) (unaudited) Three months ended September 30 Nine months ended September 30 ($ millions) 2023 2022 2023 2022 Revenues and Other Income Gross revenues (note 3) 13 911 15 869 38 617 48 153 Less: royalties (note 3) (1 262) (925) (2 335) (3 737) Other (loss) income (note 4) (13) 113 326 196 12 636 15 057 36 608 44 612 Expenses Purchas

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Exhibit 99.1 News Release FOR IMMEDIATE RELEASE Suncor Energy reports third quarter 2023 results Unless otherwise noted, all financial figures are unaudited, presented in Canadian dollars (Cdn$), and derived from the company’s condensed consolidated financial statements which are based on Canadian generally accepted accounting principles (GAAP), specifically International Financial Reporting Stand

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Exhibit 99.1 Media Advisory FOR IMMEDIATE RELEASE Suncor Energy to release third quarter 2023 financial results Calgary, Alberta (October 31, 2023) – Suncor (TSX: SU) (NYSE: SU) will release its third quarter financial results on November 8, 2023 before 8:00 p.m. MT (10:00 p.m. ET). A webcast to review the third quarter will be held on November 9, 2023 at 7:30 a.m. MT (9:30 a.m. ET). Representing

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: October, 2023 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant file

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: October, 2023 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant file

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Exhibit 99.1 News Release FOR IMMEDIATE RELEASE Suncor Energy to acquire TotalEnergies’ Canadian operations for $1.468 billion All financial figures are in Canadian dollars, unless noted otherwise · Includes a 31.23% working interest in the Fort Hills project, with Suncor now owning 100% · Adds 61,000 barrels per day of bitumen production capacity, 675 million barrels of 2P reserves · Secures addi

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: September, 2023 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant fi

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Exhibit 99.1 FOR IMMEDIATE RELEASE Suncor Energy announces changes to Board of Directors · Jane Peverett joins the Board · Eira Thomas retires from the Board Calgary, Alberta (September 5, 2023) – Suncor Energy (TSX:SU) (NYSE: SU) today announced changes to the company’s Board of Directors. Eira Thomas has retired from and Jane Peverett has been appointed to the Board effective September 1, 2023.

Certification of the Chief Financial Officer

EXHIBIT 99.4 Certification of the Chief Financial Officer CERTIFICATION I, Kris Smith, certify that: 1. I have reviewed this quarterly report for the fiscal quarter ended June 30, 2023 of Suncor Energy Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumsta

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: August, 2023 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant files

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: August 2023 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant files

Oil Sands

TABLE OF CONTENTS  Exhibit 99.2 All financial figures are unaudited and presented in Canadian dollars unless noted otherwise. Production volumes are presented on a working-interest basis, before royalties, except for production volumes from Suncor Energy Inc.’s (Suncor or the company) Libya operations, which are presented on an economic basis. Certain financial measures in this document are not pr

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: August, 2023 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant files

Oil Sands

TABLE OF CONTENTS  Exhibit 99.1 MANAGEMENT’S DISCUSSION AND ANALYSIS August 14, 2023 Suncor Energy Inc. (Suncor or the company) is an integrated energy company headquartered in Calgary, Alberta, Canada. Suncor’s operations include oil sands development, production and upgrading; offshore oil and gas; petroleum refining in Canada and the U.S.; and the company’s Petro-Canada™ retail and wholesale di

Certification of the President and Chief Executive Officer

EXHIBIT 99.3 Certification of the President and Chief Executive Officer CERTIFICATION I, Richard Kruger, certify that: 1. I have reviewed this quarterly report for the fiscal quarter ended June 30, 2023 of Suncor Energy Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in ligh

Oil Sands

 Exhibit 99.2 Consolidated Statements of Comprehensive Income (unaudited) Three months ended June 30 Six months ended June 30 ($ millions) 2023 2022 2023 2022 Revenues and Other Income Gross revenues (note 3) 12 434 17 815 24 706 32 284 Less: royalties (note 3) (715) (1 680) (1 073) (2 812) Other (loss) income (note 4) (3) 69 339 83 11 716 16 204 23 972 29 555 Expenses Purchases of crude oil and p

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Exhibit 99.1 News Release FOR IMMEDIATE RELEASE Suncor Energy declares dividend All financial figures are in Canadian dollars. Calgary, Alberta (August 14, 2023) – Suncor Energy’s (TSX: SU) (NYSE: SU) Board of Directors has approved a quarterly dividend of $0.52 per share on its common shares, payable Sept. 25, 2023 to shareholders of record at the close of business on Sept. 1, 2023. Suncor Energy

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Exhibit 99.1 News Release FOR IMMEDIATE RELEASE Suncor Energy announces executive leadership team changes Calgary, Alberta (August 14, 2023) – Suncor (TSX: SU) (NYSE: SU) announced today a series of changes to its executive leadership team. The changes are designed to drive greater clarity, simplicity and focus on corporate strategy, business fundamentals, execution excellence and sustainability.

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: August 2023 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant files

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Exhibit 99.1 FOR IMMEDIATE RELEASE Suncor Energy reports second quarter 2023 results Unless otherwise noted, all financial figures are unaudited, presented in Canadian dollars (Cdn$), and derived from the company’s condensed consolidated financial statements which are based on Canadian generally accepted accounting principles (GAAP), specifically International Financial Reporting Standards (IFRS)

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Exhibit 99.1 Media Advisory FOR IMMEDIATE RELEASE Suncor Energy to release second quarter 2023 financial results Calgary, Alberta (July 25, 2023) – Suncor (TSX: SU) (NYSE: SU) will release its second quarter financial results on August 14, 2023 before 8:00 p.m. MT (10:00 p.m. ET). A webcast to review the second quarter will be held on August 15, 2023 at 7:30 a.m. MT (9:30 a.m. ET). Representing ma

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: July, 2023 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant files o

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Exhibit 99.1 News Release FOR IMMEDIATE RELEASE Suncor Energy releases annual sustainability and climate reports Calgary, Alberta (July 18, 2023) – Suncor (TSX: SU) (NYSE: SU) released its 2023 Report on Sustainability and its 2023 Climate Report today. The reports highlight how the company is working to achieve strong environmental, social and governance (ESG) performance and the company’s action

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: July, 2023 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant files o

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: July, 2023 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant files o

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Exhibit 99.1 News Release FOR IMMEDIATE RELEASE Update on Suncor Energy response to cybersecurity incident Calgary, Alberta-(July 6, 2023) - As previously announced on June 25, 2023, Suncor (TSX: SU) (NYSE: SU) experienced a cybersecurity incident. We immediately activated our business continuity plans, engaged leading IT and cybersecurity experts and notified relevant authorities. Based on our in

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: June, 2023 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant files o

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Exhibit 99.1 News Release FOR IMMEDIATE RELEASE Suncor Energy responds to cyber security incident Calgary, Alberta (June 25, 2023) – Suncor (TSX: SU) (NYSE: SU) has experienced a cyber security incident. The company is taking measures and working with third-party experts to investigate and resolve the situation, and has notified appropriate authorities. At this time, we are not aware of any eviden

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Exhibit 99.1 News Release FOR IMMEDIATE RELEASE Suncor Energy announces Dave Oldreive as new Executive Vice President of Downstream Calgary, Alberta (June 6, 2023) – Suncor (TSX: SU) (NYSE: SU) today announced that Dave Oldreive will be joining Suncor as executive vice president, Downstream. Dave brings nearly 30 years of energy industry experience, including extensive experience in Canadian refin

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: June, 2023 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant files o

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: May, 2023 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant files or

Suncor Energy Inc. Extractive Sector Transparency Measures Act Report for the reporting year January 1, 2022 to December 31, 2022

EXHIBIT 99.1 Suncor Energy Inc. Extractive Sector Transparency Measures Act Report for the reporting year January 1, 2022 to December 31, 2022 STATEMENT UNDER THE ACT RESPECTING TRANSPARENCY MEASURES IN THE MINING, OIL AND GAS INDUSTRIES (s.1) Fiscal year covered by the statement: from January 1, 2022 to December 31, 2022 Name of the entity filing the statement: Suncor Energy Inc. Name(s) of the s

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: May, 2023 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant files or

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EXHIBIT 99.1 News Release dated May 26, 2023, Suncor Energy provides update on acquisition of TotalEnergies’ Canadian operations News Release FOR IMMEDIATE RELEASE Suncor Energy provides update on acquisition of TotalEnergies’ Canadian operations Calgary, Alberta (May 26, 2023) – Suncor Energy (TSX: SU) (NYSE: SU) (“Suncor”) announced that it has been notified that ConocoPhillips Canada (“ConocoPh

Report of Voting Results Annual Meeting of Shareholders of SUNCOR ENERGY INC. May 9, 2023 REPORT OF VOTING RESULTS National Instrument 51-102 – Continuous Disclosure Obligations Section 11.3 Matters Voted Upon

EXHIBIT 99.2 Report of Voting Results Annual Meeting of Shareholders of SUNCOR ENERGY INC. (“Suncor”) May 9, 2023 REPORT OF VOTING RESULTS National Instrument 51-102 – Continuous Disclosure Obligations Section 11.3 Matters Voted Upon 1. By resolution passed by vote conducted by ballot, the following directors were elected to hold office until the next annual meeting of shareholders: Name Votes For

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: May, 2023 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant files or

Annual General Meeting

EXHIBIT 99.1 News Release dated May 9, 2023, Suncor Energy reports voting results from Annual General Meeting FOR IMMEDIATE RELEASE Suncor Energy reports voting results from Annual General Meeting Calgary, Alberta (May 9, 2023) – Suncor (TSX: SU) (NYSE: SU) held its Annual General Meeting in Calgary today. A total of 907,152,053 shares (approximately 68.50% of outstanding common shares) were repre

Certification of the President and Chief Executive Officer

EXHIBIT 99.3 Certification of the President and Chief Executive Officer CERTIFICATION I, Richard Kruger, certify that: 1. I have reviewed this quarterly report for the fiscal quarter ended March 31, 2023 of Suncor Energy Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in lig

Oil Sands

TABLE OF CONTENTS  Exhibit 99.1 MANAGEMENT’S DISCUSSION AND ANALYSIS May 8, 2023 Suncor Energy Inc. (Suncor or the company) is an integrated energy company headquartered in Calgary, Alberta, Canada. Suncor’s operations include oil sands development, production and upgrading; offshore oil and gas; petroleum refining in Canada and the U.S.; and the company’s Petro-Canada™ retail and wholesale distri

Oil Sands

 Exhibit 99.2 Consolidated Statements of Comprehensive Income (unaudited) Three months ended March 31 ($ millions) 2023 2022 Revenues and Other Income Gross revenues (note 3) 12 272 14 469 Less: royalties (note 3) (358) (1 132) Other income (note 4) 342 14 12 256 13 351 Expenses Purchases of crude oil and products 4 069 4 352 Operating, selling and general 3 424 3 088 Transportation and distributi

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: May 2023 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant files or

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: May 2023 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant files or

Oil Sands

TABLE OF CONTENTS  Exhibit 99.2 All financial figures are unaudited and presented in Canadian dollars unless noted otherwise. Production volumes are presented on a working-interest basis, before royalties, except for production volumes from Suncor Energy Inc.’s (Suncor or the company) Libya operations, which are presented on an economic basis. Certain financial measures in this document are not pr

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Exhibit 99.1 News Release FOR IMMEDIATE RELEASE Suncor Energy declares dividend All financial figures are in Canadian dollars. Calgary, Alberta (May 8, 2023) – Suncor Energy’s (TSX: SU) (NYSE: SU) Board of Directors has approved a quarterly dividend of $0.52 per share on its common shares, payable June 26, 2023 to shareholders of record at the close of business on June 5, 2023. Suncor Energy is Ca

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: May, 2023 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant files or

Certification of the Chief Financial Officer

EXHIBIT 99.4 Certification of the Chief Financial Officer CERTIFICATION I, Alister Cowan, certify that: 1. I have reviewed this quarterly report for the fiscal quarter ended March 31, 2023 of Suncor Energy Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circu

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Exhibit 99.1 News Release FOR IMMEDIATE RELEASE Suncor Energy reports first quarter 2023 results Unless otherwise noted, all financial figures are unaudited, presented in Canadian dollars (Cdn$), and derived from the company’s condensed consolidated financial statements which are based on Canadian generally accepted accounting principles (GAAP), specifically International Financial Reporting Stand

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: May 2023 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant files or

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EXHIBIT 99.1 News Release dated May 3, 2023, Petro-CanadaTM and Canadian Tire Corporation announce new partnership News Release FOR IMMEDIATE RELEASE Petro-CanadaTM and Canadian Tire Corporation announce new partnership Two of Canada’s trusted brands come together to offer more value and convenience for Canadians · Partnership between Triangle Rewards and Petro-PointsTM will increase value for cus

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: May 2023 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant files or

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EXHIBIT 99.1 News Release dated May 1, 2023, Suncor Energy to release first quarter 2023 financial results, and hold Annual General Meeting of Shareholders FOR IMMEDIATE RELEASE Suncor Energy to release first quarter 2023 financial results, and hold Annual General Meeting of Shareholders Calgary, Alberta (May 1, 2023) – Suncor will release its first quarter financial results on May 8, 2023 before

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: April, 2023 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant files

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Exhibit 99.1 FOR IMMEDIATE RELEASE Suncor Energy to acquire TotalEnergies’ Canadian operations for $5.5 billion, plus additional potential payments up to an aggregate maximum of $600 million All financial figures are in Canadian dollars, unless noted otherwise · Transaction includes the remaining 31.23% working interest in Fort Hills and 50% working interest in Surmont · Adds 135,000 barrels per d

Fold Fold .. AR2 If you are not mailing back your proxy, you may register online to receive the above financial report(s) by mail at www.computershare.com/mailinglist. Interim Financial Statements – Mark this box if you would like to receive interim

Exhibit 99.2 . VOTE USING THE TELEPHONE OR INTERNET 24 HOURS A DAY 7 DAYS A WEEK! If you vote by telephone or the Internet, DO NOT mail back this proxy. Voting by mail may be the only method for securities held in the name of a corporation or securities being voted on behalf of another individual. Voting by mail or by Internet are the only methods by which a holder may appoint a person as proxyhol

01VM3B Fold Fold How to Request a Paper Copy of the Management Proxy Circular Shareholders may request to receive a paper copy of the Management Proxy Circular by mail at no cost for up to one year from the date the Management Proxy Circular was file

Exhibit 99.3 01VM2G Fold Fold Have questions about this notice? Call the Toll Free Number below or scan the QR code to find out more. Toll Free – 1-866 964-0492 www.computershare.com/ noticeandaccess Notice of Annual General Meeting and Notice of Availability of Proxy Materials You are receiving this notice as a shareholder of Suncor Energy Inc. (“Suncor”). Suncor has decided to use notice and acc

Meeting Attendance

TABLE OF CONTENTS  Exhibit 99.1 TABLE OF CONTENTS NOTICE OF ANNUAL GENERAL MEETING OF SHAREHOLDERS OF SUNCOR ENERGY INC. The annual general meeting (the meeting) of shareholders of Suncor Energy Inc. (the Corporation) will be held on May 9, 2023, at 10:30 a.m. Mountain Daylight Time (MDT). This year, the meeting will be conducted in a virtual-only format via live webcast online at https://web.lumi

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: March, 2023 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant files

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Report of Foreign Private Issuer Pursuant to Rule 13a - 16 or 15d - 16 of the Securities Exchange Act of 1934 For the month of: March, 2023 Commission File Number: 1-12384 SUNCOR ENERGY INC. (Name of registrant) 150 – 6th Avenue S.W. P.O. Box 2844 Calgary, Alberta Canada, T2P 3E3 Indicate by check mark whether the registrant files