Exhibit 10
March 11, 2019
Blackstone Infrastructure Advisors L.L.C.
345 Park Avenue
New York, NY 10154
Attention: John G. Finley
Email: john.finley@blackstone.com
Ladies and Gentlemen:
Reference is made to that certain Purchase Agreement (“Purchase Agreement”), dated as of January 30, 2019, by and among Tallgrass Energy Holdings, LLC, a Delaware limited liability company (“Holdings”), the other sellers named therein (together with Holdings, each a “Seller” and collectively, the “Sellers”), Prairie GP Acquiror LLC, a Delaware limited liability company (“GP Acquiror”), Prairie ECI Acquiror LP, a Delaware limited partnership (“Up-C Acquiror 1”), Prairie VCOC Acquiror LP, a Delaware limited partnership (“Up-C Acquiror 2” and, together withUp-C Acquiror 1, “Up-C Acquirors”), and PrairieNon-ECI Acquiror LP, a Delaware limited partnership (“Class A Acquiror” and, together with GP Acquiror andUp-C Acquirors, each an “Acquiror” and collectively, the “Acquirors”), and David G. Dehaemers, Jr., John T. Raymond and Frank J. Loverro, in their respective capacities as Seller Representatives (each, a “Seller Representative” and collectively, the “Seller Representatives”). Each capitalized term used herein but not defined shall have the meaning ascribed to such term in the Purchase Agreement.
The purpose of this letter agreement (this “Side Letter”) is to confirm the understanding of the Sellers and the Acquirors with respect to certain matters related to the Purchase Agreement. Accordingly, in consideration of the mutual agreements contained herein, the parties hereby agree as follows:
1. Moler Trust. The William R. Moler Revocable Trust, under trust agreement dated August 27, 2013 (“Moler Trust”) will not sell any of its Class A Shares under the Purchase Agreement and is no longer a Party to, or bound by the terms and obligations of, the Purchase Agreement for any purpose. Accordingly, all references to the “Moler Trust” in the Purchase Agreement (including the exhibits thereto) are hereby omitted.
2. DGD Class A Shares. The David G. Dehaemers, Jr. Revocable Trust, a revocable trust under trust agreement dated April 26, 2006 (“DGD Trust”), will not sell any of its Class A Shares under the Purchase Agreement and all references to the “DGD Class A Shares” in the Purchase Agreement are hereby omitted. DGD Trust shall remain a Seller under the Purchase Agreement with respect to itsUp-C Interests as set forth on Schedule 2.1 hereto.
3. Seller Notes. Promissory Notes will not be issued by Class A Acquiror,Up-C Acquiror 1 or Blackstone Infrastructure Partners V L.P. to certain of the Sellers at Closing, or otherwise in connection with the Purchase Agreement. Accordingly, all references to “Seller Notes” and “Exhibit D” in the Purchase Agreement are hereby omitted.