X0206 3 2017-09-20 1 0001652133 Oasis Midstream Partners LP OMP 0001502361 Lorentzatos Nickolas J 1001 FANNIN ST., SUITE 1500 HOUSTON TX 77002 1 1 0 0 See Remarks Executive Vice President, General Counsel and Corporate Secretary This form is being filed in connection with the effectiveness of the Registration Statement on Form S-1 (Registration No. 333-27976) of Oasis Midstream Partners LP. /s/ Nickolas J. Lorentzatos 2017-09-20