0001013762-23-003118 S-8 POS 1 20231011 20231011 20231011 Magellan Midstream Partners, L.P. 0001126975 4610 731599053 DE 1231 S-8 POS 33 333-255623 231320483 ONE WILLIAMS CENTER, MD 28-1 TULSA OK 74172 918 574 7000 ONE WILLIAMS CENTER, MD 28-1 TULSA OK 74172 MAGELLAN MIDSTREAM PARTNERS, L.P. 20190718 MAGELLAN MIDSTREAM PARTNERS LP 20030827 WILLIAMS ENERGY PARTNERS L P 20001024 S-8 POS 1 ea186355-s8pos_magellanmids.htm POST-EFFECTIVE AMENDMENT TO FORM S-8