0001193125-19-216755 FWP 1 20190808 20190808 Magellan Midstream Partners, L.P. 0001126975 4610 731599053 DE 1231 FWP 34 333-223097 191009307 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 Magellan Midstream Partners, L.P. 0001126975 4610 731599053 DE 1231 FWP 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 FWP 1 d781930dfwp.htm FWP