Table of Contents Title of each class Trading Symbol Name of each exchange on which registered Common stock, $0.01 par value MPO New York Stock Exchange UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2019 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2018 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission File Number: 001-35512 MIDSTATES PETROLEUM COMPANY, INC. (Exact name of registrant as specified in its charter) Delaware 45-3691816 (State o ...

Midstates Petroleum Company, Inc. (MPO) Q4 2018 Earnings Conference Call March 14, 2019 9:00 AM ET Company Participants Jason McGlynn - Investor Relations David Sambrooks - President and Chief Executive Officer, Director Conference Call Participants Operator Welcome to the Midstates Petroleum Fourth Quarter and Year End 2018. My name is Kanacia, and I will be facilitating the audio portion of today's interactive broadcast. [Operator Instructions] At this time, I would like to turn the show over to Jason McG ...