Investor Relations - Non-GAAP Reconciliations 

  Date  Reconciliation  Usage
05.21.2013Net Debt to Adjusted CapitalizationConference: UBS Global Oil & Gas Conference

05.14.2013Net Debt to Adjusted CapitalizationConference: Citi Global Energy and Utilities Conference

05.01.2013Adjusted Earnings, Cash Flow Before Balance Sheet Changes and Net Debt & Adj. Cap.Conference Call: Q1 2013

02.20.2013Net Debt to Adjusted Capitalization and Drill-Bit CapitalConference Call: Q4 & FY 2012

11.07.2012Net Debt to Adjusted CapitalizationConference Call: Q3 2012

08.01.2012Net Debt to Adjusted CapitalizationConference Call: Q2 2012