X0306 4 2019-06-28 1 0001692787 Altus Midstream Co ALTM 0000949615 KAYNE ANDERSON CAPITAL ADVISORS LP 1800 AVENUE OF THE STARS, THIRD FLOOR LOS ANGELES CA 90067 0 0 1 0 0000884413 KAYNE RICHARD A 1800 AVENUE OF THE STARS, THIRD FLOOR LOS ANGELES CA 90067 0 0 1 0 CLASS A COMMON STOCK 7235947 I SEE FOOTNOTE CLASS A COMMON STOCK 200000 D WARRANTS FOR COMMON STOCK 10.00 2018-11-09 2023-11-09 CLASS A COMMON 1122020 1122020 D REFERS TO HOLDINGS IN POOLED VEHICLES AND CLIENT ACCOUNTS MANAGED OR CONTROLLED BY KAYNE ANDERSON CAPITAL ADVISORS, L.P. ("KACALP"). KACALP DISCLAIMS BENEFICIAL INTEREST IN THOSE SHARES EXCEPT TO THE EXTENT OF ITS ECONOMIC INTEREST IN THE POOLED VEHICLES. /S/ DAVID SHLADOVSKY BY POWER OF ATTORNEY FOR KAYNE ANDERSON CAPITAL ADVISORS, L.P. 2019-06-28 /S/ DAVID SHLADOVSKY BY POWER OF ATTORNEY FOR RICHARD A. KAYNE 2019-06-28