Summit Midstream Partners, LP (NYSE: SMLP) (the "Partnership") announced today the final results of its offer to exchange (the "Exchange Offer") any and all of its 9.50% Series A Fixed-to-Floating Rate Cumulative Redeemable Perpetual Preferred Units (Liquidation Preference $1,000) (the "Series A Preferred Units") tendered in the Exchange Offer for newly issued common units representing limited partner interests in the Partnership (the "Common Units"), which expired at 11:59 p.m., New York City time, on January 12, 2022. Based on information provided by American Stock Transfer & Trust Company, LLC, the depositary of the Exchange Offer, 77,939 Series A Preferred Units were properly tendered and not validly withdrawn.