PLG REFC presentation "Shale Development: The Evolving Transportation Impacts"
Nafta next 04242014 final
PLG NUTC Presentation - 10/31/12
PLG Stifel Nicolaus Presentation - 10/29/12
Plg refc presentation 030513 final
PLG Industrial Minerals Frac Sand Presentation
Ftr presentation 09112014
Industrial minerals frac sand conference sept 2014
PLG Reshoring Summit
Plg energy 101 v gb 102014 final
PLG Rail Equipment Finance Presentation March 2014
PLG Provides Industry Update to Stifel Nicolaus Investors
PLG BMO Shale Energy Presentation
Industrial minerals oilfield minerals outlook 2014 final
PLG Proppants Market March 2014
PLG Industrial Minerals Proppant Presentation
Plg broe presentation final v gb 062314
Naftanext04242014final
Rail summit 06062014 final
Shale rail summit final