0001140361-06-005711 SC 13G 1 20060411 20060411 RICHARD A. KAYNE MAGELLAN MIDSTREAM PARTNERS LP 0001126975 4610 731599053 DE 1231 SC 13G 34 005-61147 06752996 ONE WILLIAMS CENTER, MD 28-1 TULSA OK 74172 918 574 7000 ONE WILLIAMS CENTER, MD 28-1 TULSA OK 74172 WILLIAMS ENERGY PARTNERS L P 20001024 KAYNE ANDERSON CAPITAL ADVISORS LP 0000949615 954486379 CA 1231 SC 13G 1800 AVE OF THE STARS SECOND FLOOR LOS ANGELES CA 90067 3105562721 1800 AVENUE OF THE STARS 2ND FLOOR LOS ANGELES CA 90067 KAIM NON TRADITIONAL L P/CA 19960605 SC 13G 1 fomrsc13g.htm KAYNE ANDERSON CAPITAL SC13G 4-11-2006