X0306 4 2020-01-31 1 0001633651 Tallgrass Energy, LP TGE 0001404073 Blackstone Holdings III L.P. C/O THE BLACKSTONE GROUP INC. 345 PARK AVENUE NEW YORK NY 10154 0 0 1 0 0001478809 Blackstone Holdings III GP L.P. C/O THE BLACKSTONE GROUP INC. 345 PARK AVENUE NEW YORK NY 10154 0 0 1 0 0001478815 Blackstone Holdings III GP Management L.L.C. C/O THE BLACKSTONE GROUP INC. 345 PARK AVENUE NEW YORK NY 10154 0 0 1 0 Class A Shares 2020-01-31 4 J 0 773510 D 0 I See Footnotes Class A Shares 2020-01-31 4 J 0 1127935 D 0 I See Footnotes Class A Shares 2020-01-31 4 J 0 21751018 D 0 I See Footnotes Class B Shares 2020-01-31 4 J 0 92778793 D 0 I See Footnotes Class B Shares 2020-01-31 4 J 0 7876328 D 0 I See Footnotes TE Units 2020-01-31 4 J 0 92778793 D Class A shares 92778793 0 I See Footnotes TE Units 2020-01-31 4 J 0 7876328 D Class A shares 7876328 0 I See Footnotes On July 1, 2019, The Blackstone Group L.P., a Delaware limited partnership, converted into a Delaware corporation named The Blackstone Group Inc. In connection with such conversion, pursuant to an internal reorganization effective as of January 31, 2020, interests in BIA GP L.P. and BIA GP L.L.C. were transferred from Blackstone Holdings III L.P. to Blackstone Holdings II L.P. Blackstone Holdings III L.P., Blackstone Holdings III GP L.P. and Blackstone Holdings III GP Management L.L.C. are filing this "exit" Form 4 to report that they are no longer beneficial owners of securities of Tallgrass Energy, LP ("TGE"). Blackstone Holdings II L.P. and Blackstone Holdings I/II GP L.L.C., the general partner of Blackstone Holdings II L.P., are separately filing a Form 3 to report beneficial ownership of TGE securities in connection with the above reorganization. This internal reorganization did not involve any purchase or sale of securities of TGE. These Class A shares representing limited partner interests of TGE ("Class A shares") are owned directly by Prairie Secondary Acquiror LP ("Secondary Acquiror "). These Class A shares are owned directly by Prairie Secondary Acquiror E LP ("Secondary Acquiror 2"). These Class A shares are owned directly by Prairie Non-ECI Acquiror LP ("Non-ECI Acquiror"). These Class B shares ("Class B shares") representing limited partner interests in TGE and units ("TE units") representing membership interests in Tallgrass Equity, LLC are owned directly by Prairie ECI Acquiror LP ("ECI Acquiror"). These Class B shares and TE units are owned directly by Prairie VCOC Acquiror LP ("VCOC Acquiror" together with Secondary Acquiror, Secondary Acquiror 2, Non-ECI Acquiror, and ECI Acquiror, the "Acquiror LPs"). BIP Holdings Manager L.L.C. is the general partner of each of the Acquiror LPs. Blackstone Infrastructure Associates L.P. is the managing member of BIP Holdings Manager L.L.C. The general partner of Blackstone Infrastructure Associates L.P. is BIA GP L.P. The general partner of BIA GP L.P. is BIA GP L.L.C. The sole member of BIA GP L.L.C. is Blackstone Holdings II L.P. The general partner of Blackstone Holdings II L.P. is Blackstone Holdings I/II GP L.L.C. The sole member of Blackstone Holdings I/II GP L.L.C. is The Blackstone Group Inc. The sole holder of Class C common stock of The Blackstone Group Inc. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly-owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman TE units may be exchanged by the holders thereof for an equivalent number of Class A shares and upon such exchange, an equivalent number of Class B shares held by such holder will be cancelled. Each of the Reporting Persons disclaims beneficial ownership of the securities held by the Acquiror LPs, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose or that any of the transactions reported herein are subject to Section 16. Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person. BLACKSTONE HOLDINGS III L.P., By: Blackstone Holdings III GP L.P., its general partner, By: Blackstone Holdings III GP Management L.L.C., its general partner, By: /s/ John G. Finley, Name: John G. Finley, Title: Chief Legal Officer 2020-02-04 BLACKSTONE HOLDINGS III GP L.P., By: Blackstone Holdings III GP Management L.L.C., its general partner, By: /s/ John G. Finley, Name: John G. Finley, Title: Chief Legal Officer 2020-02-04 BLACKSTONE HOLDINGS III GP MANAGEMENT L.L.C., By: /s/ John G. Finley, Name: John G. Finley, Title: Chief Legal Officer 2020-02-04