On November 12, 2018, Equitrans Midstream Corporation (ETRN) entered into a Separation and Distribution Agreement (Separation and Distribution Agreement) by and among ETRN, EQT Corporation (EQT) and, for certain limited purposes therein, EQT Production Company, pursuant to which EQT agreed to transfer its midstream business to ETRN (the Separation) and distribute 80.1% of the shares of outstanding common stock of ETRN to EQT shareholders of record as of the close of business on November 1, 2018 (the Distribution). In connection with and effective as of immediately prior to the Distribution, Phillip D. Swisher was appointed as a Vice President and Chief Accounting Officer of ETRN. Effective immediately prior to the Distribution, Charlene Petrelli, Robert J. McNally and Jimmi Sue Smith resigned as members of the Board. Furthermore, in connection with and effective as of immediately prior to the Distribution, the Board expanded its size from four directors to seven directors and each of Vicky A. Bailey, Margaret K. Dorman, Thomas F. Karam, David L. Porges, Norman J. Szydlowski and Robert F. Vagt was elected as a member of the Board. Kenneth M. Burke, who served on the Board prior to the Distribution, continued to serve on the Board after the Distribution. Effective as of immediately prior to the Distribution: Margaret K. Dorman and Robert F. Vagt were appointed to serve as members of the Audit Committee; Margaret K. Dorman, Norman J. Szydlowski and Robert F. Vagt were appointed to serve as members of the Management Development and Compensation Committee, with Ms. Dorman to serve as Chair; Vicky A. Bailey and Kenneth M. Burke were appointed to serve as members of the Corporate Governance Committee, with Ms. Bailey to serve as Chair; Norman J. Szydlowski, Thomas F. Karam and Vicky A. Bailey were appointed to serve as members of the Health, Safety, Security and Environmental Committee, with Mr. Szydlowski to serve as Chair; David L. Porges was appointed Chairman of the Board; and Robert F. Vagt was appointed Lead Independent Director of the Board. In addition, Kenneth M. Burke, who served as Chairman of the Audit Committee prior to the Distribution, continued to serve as chairman of the Audit Committee after the Distribution.