http://prwatch.org/news/2016/12/13188/rex-tillerson-and-exxon-spent-big-climate-change-denial-while-misleading-public
"With Tillerson at the helm of Exxon, the company has paid ALEC to have a leadership role in its operations, both on the its corporate board and on its task forces, where corporations vote as equals with legislators on "model" bills that are then pushed into law in state legislatures and Congress."