Business Description

Our Business Gulfport is an independent natural gas-weighted exploration and production company with assets primarily located in the Appalachia and Anadarko basins. Our principal operations target the Utica and Marcellus formations in eastern Ohio and the SCOOP Woodford and Springer formations in central Oklahoma. Gulfport's Predecessor was incorporated in the State of Delaware in July 1997. Our corporate headquarters are located in Oklahoma City, Oklahoma and shares of Gulfport's common stock trade on the New York Stock Exchange (“NYSE”) under the ticker symbol “GPOR”. Our corporate strategy is focused on the economic development of our asset base in an effort to generate sustainable free cash flow. As of December 31, 2025, we had 4.3 Tcfe of proved reserves with a Standardized Measure of $3.4 billion and a PV-10 of $3.6 billion. See “Definitions” above for our definition of PV-10 (a non-GAAP financial measure) and “Oil, Natural Gas and NGL Reserves and Estimation” below for a reconciliation of our standardized measure of discounted future net cash flows (the most directly comparable GAAP measure) to PV-10. Information About Us Our annual report on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K and all amendments to those reports filed or furnished pursuant to Section 13(a) or 15(d) of the Exchange Act are made available free of charge on the Investor Relations page of our website at www.gulfportenergy.com as soon as reasonably practicable after such material is electronically filed with, or furnished to, the SEC. From time to time, we also post announcements, updates, events, investor information and presentations on our website in addition to copies of our recent news releases. Information contained on our website, or on other websites that may be linked to our website, is not incorporated by reference into this annual report on Form 10-K and should not be considered part of this report or any other filing that we make with the SEC. Emergence From Voluntary Reorganization Under Chapter 11 of the Bankruptcy Code On November 13, 2020, we, and certain of our subsidiaries, filed voluntary petitions for relief under Chapter 11 of Title 11 of the United States Code in the United States Bankruptcy Court for the Southern District of Texas. The Bankruptcy Court confirmed the Plan and entered the confirmation order on April 28, 2021, and the Debtors emerged from the Chapter 11 Cases on the Emergence Date. On May 18, 2021, we began trading on the NYSE under the symbol “GPOR”. Business Strategy Gulfport aims to create sustainable value through the economic development of our significant resource plays in the Utica/Marcellus and SCOOP operating areas. Our strategy is to develop our assets in a safe, environmentally responsible manner, while generating sustainable cash flow, enhancing margins and operating efficiencies and returning capital to shareholders. To achieve these goals, we generally allocate capital to projects we believe offer the highest rate of return and we deploy leading drilling and completion techniques and technologies in our development efforts. We believe our plan to generate free cash flow on an annual basis will allow us to further strengthen our balance sheet, return capital to shareholders and increase our resource depth through incremental leasehold opportunities that provide optionality to our future development plans. 2026 Outlook Our 2026 capital expenditure program is expected to be in a range of $400 million to $430 million, including $35 million to $40 million on maintenance land and seismic investments. In the Utica, we intend to complete drilling on approximately 18 gross (17.5 net) operated horizontal wells and commence sales on approximately 20 gross (19.5 net) operated horizontal wells. In the Marcellus, we intend to complete drilling on approximately 6 gross (5.6 net) and commence sales on approximately 4 gross (4.0 net) operated horizontal wells. In the SCOOP, we intend to complete drilling and commence sales on approximately 2 gross (1.7 net) operated horizontal wells. We expect to fund these expenditures with our operating cash flow and borrowings under our Credit Facility. We expect this development program to result in approximately 1.030 to 1.055 Bcfe per day of production in 2026. 4 Table of Contents Index to Financial Statements Additionally, in 2026, we expect to continue returning capital to shareholders through our Repurchase Program.…