SCHEDULE 13D/A 0001506666 XXXXXXXX LIVE 3 Common shares, par value US$0.001 per share 03/10/2026 false 0001464591 G38327105 GeoPark Ltd

Calle 94 No 11-30 8 Piso Bogota F8 00000

Cameron Grainger (403) 237-1708 585 8th Av. SW, 2700 Eighth Avenue Place West Tower Calgary A0 T2P 1G1 0001506666 N Parex Resources Inc. WC N A0 6085086.00 0.00 6085086.00 0.00 6085086.00 N 9.4 CO Common shares, par value US$0.001 per share GeoPark Ltd Calle 94 No 11-30 8 Piso Bogota F8 00000 This Amendment No. 3 to Schedule 13D ("Amendment No. 3") relates to the Schedule 13D filed on October 29, 2025 (as amended by Amendment No. 1 dated December 11, 2025 and Amendment No. 2 dated February 23, 2026, the "Schedule 13D") by Parex Resources Inc., an Alberta corporation (the "Reporting Person"), relating to the Common Shares, par value US$0.001 per share (the "Common Shares"), of GeoPark Limited, an exempted company incorporated under the laws of Bermuda (the "Company"), whose principal executive offices are located at Calle 94 No 11-30, 8 Piso, Bogota, Colombia, 00000. Except as specifically amended by this Amendment No. 3, the Schedule 13D is unchanged. Item 4 of the Schedule 13D is hereby amended and supplemented by adding the following information: On March 5, 2026, Frontera Energy Corporation ("Frontera"), which wholly owns Frontera Petroleum International Holdings B.V. ("Frontera Petroleum"), determined that the Reporting Person's binding offer to acquire Frontera Petroleum was superior to the terms of the Company's definitive arrangement agreement. On March 9, 2026, the Company publicly announced that it had determined not to increase the consideration it had originally offered to acquire Frontera Petroleum. As a result, on March 10, 2026, Frontera terminated its definitive arrangement agreement with the Company and entered into a definitive arrangement agreement with the Reporting Person with respect to the acquisition of Frontera Petroleum. The aggregate number and percentage of the Common Shares that are beneficially owned by the Reporting Person and as to which the Reporting Person has sole voting power, shared voting power, sole dispositive power and shared dispositive power are set forth on the cover page of this Statement, and such information is incorporated herein by reference. The percentage used herein is calculated based on an aggregate of 64,625,278 Common Shares outstanding as of March 5, 2026, based on the information contained in the Company's press release included in the Company's Form 6-K dated March 5, 2026. The information in Item 5(a) of this Statement is incorporated herein by reference. Parex Resources Inc. /s/ Cameron Grainger 03/12/2026