Oasis Midstream Partners (OMP) 10-Q 2021 Q3 Quarterly report

EXHIBIT 32.2

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the quarterly report of Oasis Midstream Partners LP (the “Partnership”) on Form 10-Q for the quarter ended September 30, 2021 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Richard N. Robuck, Senior Vice President and Chief Financial Officer of the Partnership, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to my knowledge:

(1)The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

(2)The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Partnership.

Date:	November 4, 2021	/s/ Richard N. Robuck
		Richard N. Robuck
		Senior Vice President and Chief Financial Officer
		(Principal Accounting Officer and Principal Financial Officer)