Director — John Cocke, Jonathan Adams: The filing discloses the appointment of two new independent directors to expand the board size, which is a routine governance action rather than an executive departure.

Results of Operations and Financial Condition. On August 6, 2026, Granite Ridge Resources, Inc., a Delaware corporation (“the Company”), issued a press release announcing its financial and operating results for the quarter ended June 30, 2026. A copy of the press release is attached as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.

The excerpt is incomplete and does not provide sufficient information to determine the nature of the event.

Results of Operations and Financial Condition. On May 7, 2026, Granite Ridge Resources, Inc., a Delaware corporation (“the Company”), issued a press release announcing its financial and operating results for the quarter ended March 31, 2026 and updating its 2026 guidance. A copy of the press release is attached as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.

Results of Operations and Financial Condition. On March 5, 2026, Granite Ridge Resources, Inc., a Delaware corporation (“the Company”), issued a press release announcing its financial and operating results for the quarter and year ended December 31, 2025 as well as 2026 guidance. A copy of the press release is attached as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.

Chief Financial Officer — Ronald Kyle Kettler: The company appointed Ronald Kyle Kettler as Chief Financial Officer.

Entry into a Material Definitive Agreement. Amendment No. 1 to Management Services Agreement On December 10, 2025 (the “Amendment Date”), Granite Ridge Resources, Inc., a Delaware corporation (the “Company”), entered into Amendment No. 1 to the Management Services Agreement (“Amendment No. 1”) amending the Company’s existing Management Services Agreement, dated October 24, 2022, by and between the Company and Grey Rock Administration, LLC, a Delaware limited liability company (prior to the Am…

Results of Operations and Financial Condition. On November 6, 2025, Granite Ridge Resources, Inc., a Delaware corporation (“the Company”), issued a press release announcing its financial and operating results for the quarter ended September 30, 2025. A copy of the press release is attached as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.

Results of Operations and Financial Condition. On August 7, 2025, Granite Ridge Resources, Inc., a Delaware corporation (“the Company”), issued a press release announcing its financial and operating results for the quarter ended June 30, 2025 as well as updated 2025 guidance. A copy of the press release is attached as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.

President and Chief Executive Officer — Luke Brandenberg: Luke Brandenberg stepped down as President and CEO, succeeded by Tyler Farquharson.

Results of Operations and Financial Condition. On May 8, 2025, Granite Ridge Resources, Inc., a Delaware corporation (“the Company”), issued a press release announcing its financial and operating results for the quarter ended March 31, 2025 as well as reaffirming its 2025 guidance. A copy of the press release is attached as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.

Entry into a Material Definitive Agreement. On April 29, 2025 (the “Amendment Date”), Granite Ridge Resources, Inc., a Delaware corporation (the “Company”), and its subsidiary guarantors entered into the Fifth Amendment to Credit Agreement (the “Fifth Amendment”) amending the Company’s existing Credit Agreement, dated as of October 24, 2022, by and among the Company, as borrower, Bank of America, N.A., as administrative agent, and the lenders from time to time party thereto (as amended or mod…

by reference. SIGNATURE 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. GRANITE RIDGE RESOURCES, INC. Date: May 2, 2025 By: /s/ Luke C. Brandenberg Name: Luke C. Brandenberg Title: President and Chief Executive Officer

Results of Operations and Financial Condition. On March 6, 2025, Granite Ridge Resources, Inc., a Delaware corporation (“the Company”), issued a press release announcing its financial and operating results for the quarter and year ended December 31, 2024 as well as 2025 guidance. A copy of the press release is attached as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.

Results of Operations and Financial Condition. On November 7, 2024, Granite Ridge Resources, Inc., a Delaware corporation (“the Company”), issued a press release announcing its financial and operating results for the quarter ended September 30, 2024. A copy of the press release is attached as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.

Creation of Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. The information set forth under

Entry into a Material Definitive Agreement. On November 1, 2024 (the “Amendment Date”), Granite Ridge Resources, Inc., a Delaware corporation (the “Company”), and its subsidiary guarantors entered into the Fourth Amendment to Credit Agreement (the “Fourth Amendment”) amending the Company’s existing Credit Agreement, dated as of October 24, 2022, by and among the Company, as borrower, Bank of America, N.A., as administrative agent, and the lenders from time to time party thereto (as amended or…

Results of Operations and Financial Condition. On August 8, 2024, Granite Ridge Resources, Inc., a Delaware corporation (“the Company”), issued a press release announcing its financial and operating results for the quarter ended June 30, 2024 as well as updated 2024 guidance. A copy of the press release is attached as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.

Results of Operations and Financial Condition. On May 9, 2024, Granite Ridge Resources, Inc., a Delaware corporation (“the Company”), issued a press release announcing its financial and operating results for the quarter ended March 31, 2024 as well as reaffirming its 2024 guidance. A copy of the press release is attached as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.

Entry into a Material Definitive Agreement. On April 1, 2024 (the “Amendment Date”), Granite Ridge Resources, Inc., a Delaware corporation (the “Company”), entered into the Resignation, Appointment, Assignment and Third Amendment to Credit Agreement (the “Third Amendment”) amending the Company’s existing Credit Agreement, dated as of October 24, 2022, by and among the Company, as borrower, Texas Capital Bank, as resigning administrative agent, Bank of America, N.A. (“Bank of America”), as suc…

Creation of Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. The information set forth under

Results of Operations and Financial Condition. On March 7, 2024, Granite Ridge Resources, Inc., a Delaware corporation (“the Company”), issued a press release announcing its financial and operating results for the quarter and year ended December 31, 2023 as well as 2024 guidance. A copy of the press release is attached as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.

Results of Operations and Financial Condition. On February 2, 2024, Granite Ridge Resources, Inc., a Delaware corporation (the “Company”), issued a press release (i) providing select preliminary financial and operating results for the quarter ended December 31, 2023 and (ii) announcing plans to host a conference call on Friday, March 8, 2024 at 10:00 am Central Time to discuss its financial and operating results for the quarter and year ended December 31, 2023. A copy of the press release is…

Chief Accounting Officer — Kimberly Weimer: The company appointed an experienced Chief Accounting Officer from outside the organization.

Entry into a Material Definitive Agreement. On November 7, 2023, Granite Ridge Resources, Inc., a Delaware corporation (the “Company”), entered into a First Amendment (the “Amendment”) to the Company’s existing Credit Agreement, dated October 24, 2022, by and among the Company, as borrower, Texas Capital Bank, as administrative agent, and the lenders from time to time party thereto (as amended or modified prior to such date, the “Existing Credit Agreement”). The Amendment, among other things,…