X0304 4 2011-11-01 0001326160 Duke Energy CORP DUK 0001230175 GOOD LYNN J 526 S. CHURCH STREET CHARLOTTE NC 28202 1 Grp Exec & CFO Common Stock 2011-11-01 4 S 0 1500 20.15 D 135927 D Common Stock 4984 I By 401(k) Common Stock 3987 I By Spouse This sale was effected pursuant to a pre-existing Rule 10b5-1 trading plan adopted by the reporting person. /s/ David S. Maltz, attorney-in-fact Lynn J. Good 2011-11-03