X0101 EFFECT 33 LIVE 2016-11-22 15:00:00

S-3

0001549922 Summit Midstream Partners, LP 333-213950 0001586954 Grand River Gathering, LLC 333-213950-09 0001586943 DFW Midstream Services LLC 333-213950-08 0001612504 Red Rock Gathering Company, LLC 333-213950-07 0001685848 Polar Midstream, LLC 333-213950-06 0001685851 Epping Transmission Company, LLC 333-213950-05 0001685829 Summit Midstream OpCo GP, LLC 333-213950-04 0001586946 Summit Midstream Holdings, LLC 333-213950-03 0001579839 Summit Midstream Finance Corp. 333-213950-02 0001586816 Bison Midstream, LLC 333-213950-01