13G Filing: Carlson Capital and Propetro Holding Corp.

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Exhibit 1

JOINT FILING AGREEMENT

In accordance with Rule
13d-1(k) under the Securities Exchange Act of 1934, as amended, each of the undersigned hereby agrees to the joint filing on behalf of each of them of a statement on Schedule 13G (including amendments thereto) with respect to the Common Stock of
Propetro Holding Corp., and that this Joint Filing Agreement be included as an Exhibit to such joint filing.

Each of the undersigned acknowledges that
each shall be responsible for the timely filing of any statement (including amendments) on Schedule 13G, and for the completeness and accuracy of the information concerning him or it contained herein, but shall not be responsible for the
completeness and accuracy of the information concerning the other persons making such filings, except to the extent that he or it knows or has reason to believe that such information is inaccurate.

Dated: March 31, 2017

DOUBLE BLACK DIAMOND OFFSHORE LTD.
By: Carlson Capital, L.P., its investment manager
By: Asgard Investment Corp. II, its general partner
By: /s/ Clint D. Carlson
Name: Clint D. Carlson
Title: President
BLACK DIAMOND OFFSHORE LTD.
By: Carlson Capital, L.P., its investment manager
By: Asgard Investment Corp. II, its general partner
By: /s/ Clint D. Carlson
Name: Clint D. Carlson
Title: President
BLACK DIAMOND ENERGY L/S OFFSHORE LTD.
By: Carlson Capital, L.P., its investment manager
By: Asgard Investment Corp. II, its general partner
By: /s/ Clint D. Carlson
Name: Clint D. Carlson
Title: President

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