October 30, 2008
NuVista Energy Ltd.: Third Quarter Interim Report 2008

October 2, 2008
NuVista Energy Ltd. Announces Increase in 2008 Capital Budget

August 5, 2008
NuVista Energy Ltd.: Second Interim Report 2008

May 8, 2008
NuVista Energy Ltd.: Announces Q1 2008 Results

April 18, 2008
NuVista Energy Ltd. Appoints Mr. Kevin Christie as Vice President, Exploration

March 28, 2008
NuVista Energy Ltd. Announces Filing of its 2007 Annual Financial Statements, Management's Discussion and Analysis and Annual Information Form

March 7, 2008
NuVista Energy Ltd. Announces 2007 Year End Results

March 4, 2008
NuVista and Rider Announce Closing of Plan of Arrangement, Closing of Investment by Ontario Teachers' Pension Plan Board and Expanded Credit Facility

March 3, 2008
NuVista and Rider Announce Shareholder and Court Approval of Plan of Arrangement

February 5, 2008
NuVista and Rider Announce Mailing of Joint Information Circular and Proxy Statement With Respect to Plan of Arrangement

January 7, 2008
NuVista Energy Ltd. Announces Strategic Business Combination With Rider Resources Ltd. and Enters Into Private Placement Financing With Ontario Teachers' Pension Plan