JOINT FILING AGREEMENT OF THE REPORTING PERSONSJoint Filing Agreement • February 14th, 2019 • SailingStone Capital Partners LLC • Crude petroleum & natural gas
WHEREAS, in accordance with Rule 13d-1(k)(1) under the Securities and Exchange Act of 1934 (the "Act"), only one joint statement and any amendments thereto need to be filed whenever one or more persons are required to file such a statement or any amendments thereto pursuant to Section 13(d) of the Act with respect to the same securities, provided that said persons agree in writing that such statement or amendments thereto is filed on behalf of each of them:
