Table of Contents Index to Financial Statements UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2019 OR ☐ TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 000-19514 Gulfport Energy Corporation (Exact Name of Registrant As Specified in Its Charter) (State or Ot ...

Gulf INVESTOR PRESENTATION OCTOBER 2019 FORWARD LOOKING STATEMENT This presentation includes "forward-looking statements" for purposes of the safe harbor provisions of the Private Securities Litigation Reform Act of 1995, Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Exchange Act. All statements, other than statements of historical facts, included in this presentation that address activities, events or developments that Gulfport expects or anticipates will or may occur in the ...

Gulfport Energy Corporation (NYSE:GPOR) Q3 2019 Results Conference Call November 1, 2019 9:00 AM ET Company Participants Jessica Antle - Director, IR David Wood - President and CEO Quentin Hicks - EVP and CFO Donnie Moore - COO Conference Call Participants Neal Dingmann - SunTrust Robinson Humphrey Jason Wangler - Imperial Capital Josh Silverstein - Wolfe Research Jane Trotsenko - Stifel Leo Mariani - KeyBanc Capital Markets Jeffrey Campbell - Tuohy Brothers Kashy Harrison - Simmons Energy Noel Parks - Coke ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) Commission File Number 000-19514 Gulfport Energy Corporation (Exact Name of Registrant As Specified in Its Charter) Delaware 73-1521290 (State or Other Jurisdiction of Incorporation or Organization) (IRS Employer Identification Number) 3001 Quail Springs Parkway Oklahoma City, Oklahoma 73134 (Address of Principal Executive Offices) (Zip Code) (405) 252-4600 (Registrant Telephone Number, Including A ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2019 OR ☐ TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 000-19514 Gulfport Energy Corporation (Exact Name of Registrant As Specified in Its Charter) Delaware 73-1521290 (State or Other Ju ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ý QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2019 OR ¨ TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 000-19514 Gulfport Energy Corporation (Exact Name of Registrant As Specified in Its Charter) Delaware 73-1521290 (State or Other J ...

Table of Contents Index to Financial Statements UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ý ANNUAL REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2018 OR ¨ TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 000-19514 Gulfport Energy Corporation (Exact Name of Registrant As Specified in Its Charter) Delaware 73- ...