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☑ 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 March 31 , 2021 OR TRANSITION REPORT UNDER SECTION 13 OR 15 ( d ) OF SECURITIES EXCHANGE ACT OF 1934 For the transition period from _to Commission File Number 001-19514 Gulfport Energy Corp oration ( Exact Name of Registrant As Specified in Its Charter ) Delaware ( State or Other Jurisdiction of Incorporation or Organization ) 3001 Quail Springs Parkway Oklahoma City , Oklahoma ( Address of Principal Executive Offices ) ( 405 ) 252-4600 73-1521290 ( IRS Employer Identification Number ) 73134 ( Zip Code ) ( Registrant Telephone Number , Including Area Code ) Securities registered pursuant to Section 12 ( b ) of the Act : None ( 1 ) ( On November 27 , 2020 , our common stock was suspended from trading on the NASDAQ Stock Market LLC ( " NASDAQ " ) . On November 30 , 2020 , our common stock began trading on the OTC Pink Marketplace maintained by the OTC Markets Group , Inc. under the symbol “ GPORQ " . On February 2 , 2021 , NASDAQ filed a Form 25 delisting our common stock from trading on NASDAQ , which delisting became effective 10 days after the filing of the Form 25. In accordance with Rule 12d2-2 of the Securities Exchange Act of 1934 , as amended ( the " Exchange Act " ) , the de - registration of our common stock under section 12 ( b ) of the Exchange Act became effective on February 12 , 2021 . Securities registered pursuant to Section 12 ( g ) of the Act : Common Stock ( Title of Class ) Indicate by check mark whether the registrant ( 1 ) has filed all reports required to be filed by Section 13 or 15 ( d ) of the Securities Exchange Act of 1934 during the preceding 12 months ( or for such shorter period that the registrant was required to file such reports ) , and ( 2 ) has been subject to such filing requirements for the past 90 days . Yes ý No Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S - T ( Section 232.405 of this chapter ) during the preceding 12 months ( or such shorter period that the registrant was required to submit such files ) . Yes ý No Indicate by check mark whether the registrant is a large accelerated filer , an accelerated filer , a non - accelerated filer , a smaller reporting company , or an emerging growth company . See definitions of “ large accelerated filer , " " accelerated filer , " " smaller reporting company , ” and “ emerging growth company " in Rule 12b - 2 of the Exchange Act . ( Check one ) : Large Accelerated filer " Accelerated filer ý Non - accelerated filer Smaller reporting company ☐ Emerging growth company ☐ If an emerging growth company , indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13 ( a ) of the Exchange Act .