From left, Ko Watanabe of Sumitomo Corporation of America, David French of L.R. Kimball, Lee Ann Wainwright of Chief Oil & Gas, Matt Pitzarella of Range Resources Corporation, Doug Matthews of U.S. Steel, Kathryn Klaber of the Marcellus Shale Coalition, Jack Thompson of Chesapeake Energy, Gregg Troian of PGT Trucking and Jason Norris of Dura-Bond Pipe take the stage as part of a press conference about a new economic impact analysis of Marcellus Shale development in Pennsylvania at the U.S. Steel Mon Valley Works Training Hub in Duquesne, Pa. on Wednesday, July 20, 2011.