Imperial Oil Limited

Item 7.01 Regulation FD Disclosure On July 31, 2026, Imperial Oil Limited (the “company”) by means of a press release announced that the board of directors declared a quarterly cash dividend of 87 cents per share on the outstanding common shares of the company for the third quarter of 2026. The dividend is payable on October 1, 2026, to shareholders of record at the close of business on September 4, 2026. A copy of the press release is attached as Exhibit 99.1 to this report. Item 9.01 Financial Statements and Exhibits. (d) Exhibits. The following exhibit is furnished as part of this report on Form 8-K: 99.1 News release of the company on July 31, 2026 announcing the third quarter dividend on the common shares of the company. 104 Cover Page Interactive Data File (embedded within the Inline XBRL document). SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. IMPERIAL OIL LIMITED Date: July 31, 2026 By: /s/ Ian Laing Name: Ian Laing Title: Vice-president, general counsel and corporate secretary By: /s/ Cathryn Walker Name: Cathryn Walker Title: Assistant corporate secretary