[2] After discovering that the only employment he could get in Montana was a $10,000-a-year bank job, he took a position with Shell Oil in Houston, Texas, largely because a friend lived there.
[3] Further, the former United States Attorney for the Southern District of Texas, Michael Shelby, stated that Williamson becoming CEO, "has changed the standard operating procedures in such a way that honesty and candor [are] part of the business plan," and Williamson "helped ferret out potential wrongdoers.
[6] In July 2011, Williamson was named president and CEO of Cleco Corporation, a utility holding company based in Louisiana.
[9] In December 2013, Cleco Corp. transitioned into the Midcontinent Independent System Operator Market, with the hope that this will provide additional growth opportunities.
[9] Also, since Williamson joined Cleco, the company has raised shareholder dividends five times for a total increase of sixty percent.
[9] In 2014, Macquarie Group agreed to buy Cleco Corporation for approximately $3.4 billion in cash attracted by the steady, long-term returns of regulated power assets.