Amplify Energy (AMPY) SC 13G/A Midstates Petroleum Company, Inc.

Exhibit 99.1

JOINT FILING AGREEMENT

The undersigned hereby agree that the foregoing statement on Schedule 13G is filed on behalf of each of the undersigned in accordance with the provisions of Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended, and that all subsequent amendments to this statement on Schedule 13G may be filed on behalf of each of the undersigned without the necessity of filing additional joint filing agreements.

Dated: February 16, 2016

RUBRIC CAPITAL MANAGEMENT, LLC

By: /s/ Kevin J. O’Connor                                             

Name:  Kevin J. O’Connor

Title:  Authorized Person

STEVEN A. COHEN

By: /s/ Kevin J. O’Connor                                             

Name:  Kevin J. O’Connor

Title:  Authorized Person