Barry Smitherman resigned his post as chairman of the Public Utility Commission, and Gov. Rick Perry quickly appointed him to the Texas Railroad Commission. He says he will run for election to the office — he's not a placeholder — and he demurred when asked if he thinks it's a good idea to merge his new agency with his old one. That's on the Sunset Advisory Commission's plate for the next legislative session, after lawmakers left that question unanswered this year.