By Justin Elliott, ProPublica
Recently, we wrote about former Pennsylvania Gov. Ed Rendell's connections to the natural gas industry after he published a pro-fracking op-ed in The New York Daily News.
Following our story, Rendell's column — which called on New York officials to lift a ban on the drilling technique — was updated to disclose that he is a paid consultant to a private equity firm with natural gas investments.
Rendell assured us in an interview before the first story that despite his role with the private equity firm, he had no "pecuniary interest in the natural gas industry doing well."
But the story doesn't end there. One entity that indisputably has an interest in the industry is Rendell's longtime home outside of politics: the law firm Ballard Spahr of Philadelphia.
The firm touts its work "on the forefront" of the development of the Marcellus Shale, the formation under Pennsylvania and other states from which a vast quantity of natural gas is now being extracted.