On January 16, 2019, TransAtlantic Petroleum Ltd. announced that Chad D. Burkhardt, the Company's vice president, general counsel, and corporate secretary, has left the Company, effective January 16, 2019. On January 16, 2019, the Company announced that its board of directors appointed Tabitha Bailey as vice president, general counsel, and corporate secretary, effective January 16, 2019. Ms. Bailey has served as associate general counsel of TransAtlantic since June 2017. On January 16, 2019, the Company announced that its board of directors appointed Michael Hill as chief accounting officer and designated Mr. Hill as the principal financial officer and principal accounting officer of the Company, effective January 28, 2019. Mr. Hill has served as chief accounting officer of AVAD Energy Partners, LLC since December 2017. Fabian Anda will continue to serve as the Company's principal accounting and financial officer and vice president of finance until January 28, 2019 and thereafter will remain with the Company as the vice president of finance. Ozan Ulker will remain the Company's Chief Financial Officer, Turkey.