Entergy

==Middle South Utilities Inc.==
===1949–1966===
MSU was formed as a holding company for AP&L, LP&L, MP&L and NOPSI in 1949.
===1966–1989===
==Entergy==
===1989–2022===
===2022–present===
Category:Companies of the S&P 500
Category:1949
Category:Energy
Category:Energy companies in the United States
Category:New Orleans