1. The GHS Conference 2011Investor PresentationJuly 18, 2011NYSE: PVAEagle Ford Shale Drilling RigGonzales County, Texas 2. Forward‐Looking Statements, Oil and Gas Reserves and DefinitionsForward‐Looking…

1. 41st Annual Howard Weil Energy ConferenceInvestor PresentationMarch 20, 2013NYSE: PVA 2. Forward-Looking Statements, Oil and Gas Reserves and DefinitionsForward-Looking…

1. Wells Fargo 2013 E&P ForumInvestor PresentationMarch 7, 2013NYSE: PVA 2. Forward-Looking Statements, Oil and Gas Reserves and DefinitionsForward-Looking StatementsCertain…

1. The BMO Capital Markets 10th AnnualUnconventional Resource ConferenceInvestor PresentationJanuary 8, 2012 2. Forward-Looking Statements, Oil and Gas Reserves and DefinitionsForward-Looking…

1. October 2012Investor PresentationNYSE: PVA 2. Forward-Looking Statements, Oil and Gas Reserves and DefinitionsForward-Looking StatementsCertain statements contained herein…

1. The BMO Capital Markets 10th AnnualUnconventional Resource ConferenceInvestor PresentationJanuary 8, 2012 2. Forward-Looking Statements, Oil and Gas Reserves and DefinitionsForward-Looking…

1. Corporate Presentation May 14, 2012WWW.ZARGON.CA 2. Advisory – Forward-Looking Information Forward-Looking Statements - This presentation offers our assessment of Zargons…

1. BMO Capital Markets2012 Unconventional Resource ConferenceInvestor PresentationJanuary 10, 2012NYSE: PVAEagle Ford Shale Drilling RigGonzales County, Texas…

1. BMO Capital Markets2012 Unconventional Resource ConferenceInvestor PresentationJanuary 10, 2012NYSE: PVAEagle Ford Shale Drilling RigGonzales County, Texas…

1. 40th Annual Howard Weil Energy ConferenceInvestor PresentationMarch 28, 2012NYSE: PVA 2. Forward‐Looking Statements, Oil and Gas Reserves and DefinitionsForward‐Looking…