Closed-End FundsEnerVest Energy & Oil Sands Total Return Trust

2011 Annual Report (Year Ended December 31)

• Annual Report
• Financial Statement
• Management Report of Fund Performance

2011 Interim Report (Six Months Ended June 30)

• Interim Financial Statement
• Interim Management Report of Fund Performance

2011 Quarterly Portfolio Disclosure

• Quarterly Portfolio Disclosure (March 31, 2011)
• Quarterly Portfolio Disclosure (September 30, 2011)

2011 Proxy Voting

• Proxy Voting Disclosure (June 2011 - July 2010)

2011 Other

• Annual Report from the Independent Review Committee (Year Ended December 31, 2011)
• Annual Information Form

2010 Annual Report (Year Ended December 31)

• Financial Statements
• Management Report of Fund Performance

2010 Interim Report (Six Months Ended June 30)

• Interim Financial Statements
• Interim Management Report of Fund Performance
• Interim Report

2010 Quarterly Portfolio Disclosure

• Quarterly Portfolio Disclosure (First Quarter Ended March 31, 2010)
• Quarterly Portfolio Disclosure (Third Quarter Ended September 30, 2010)

2010 Proxy Voting

• Proxy Voting Disclosure (July 2009 - June 2010)
• Proxy Voting Policies and Procedures

2010 Other

• Annual Report from the Independent Review Committee (Year Ended December 31, 2010)
• Annual Information Form

2009 Annual Report (Year Ended December 31)

• Financial Statements
• Management Report of Fund Performance
• Annual Report

2009 Interim Report (Six Months Ended June 30)

• Interim Financial Statements
• Interim Management Report of Fund Performance
• Interim Report

2009 Quarterly Portfolio Disclosure

• Quarterly Portfolio Disclosure (First Quarter Ended March 31, 2009)
• Quarterly Portfolio Disclosure (Third Quarter Ended September 30, 2009)

2009 Proxy Voting

• Proxy Voting Disclosure (July 2008 - June 2009)
• Proxy Voting Policies and Procedures

2009 Other

• Annual Information Form
• Annual Report from the Independent Review Committee (Year Ended December 31, 2009)

2008 Annual Report (Year Ended December 31)

• Annual Report
• Financial Statements
• Management Report of Fund Performance

2008 Interim Report (Six Months Ended June 30)

• Interim Report
• Interim Management Report of Fund Performance
• Interim Financial Statements

2008 Quarterly Portfolio Disclosure

• Quarterly Portfolio Disclosure (First Quarter Ended March 31, 2008)
• Quarterly Portfolio Disclosure (Third Quarter Ended September 30, 2008)

2008 Proxy Voting

• Proxy Voting Policies and Procedures
• Proxy Voting Disclosure (July 2007 - June 2008)

2008 Other

• Annual Information Form (March 24, 2009)
• Annual Report from the Independent Review Committee (Year Ended December 31, 2008)

2007 Annual Report (Year Ended December 31)

• Management Report of Fund Performance
• Financial Statements
• Annual Report

2007 Interim Report (Six Months Ended June 30)

• Interim Report
• Interim Financial Statements
• Interim Management Report of Fund Performance

2007 Quarterly Portfolio Disclosure

• Quarterly Portfolio Disclosure (First Quarter Ended March 31, 2007)
• Quarterly Portfolio Disclosure (Third Quarter Ended September 30, 2007)

2007 Proxy Voting

• Proxy Voting Policies and Procedures
• Proxy Voting Disclosure (July 2006 - June 2007)

2007 Other

• Annual Information Form (March 26, 2008)
• Annual Report from the Independent Review Committee (Year Ended December 31, 2007)

2006 Annual Report (Year Ended December 31)

• Financial Statements (Six Months Ended June 30, 2006)
• Annual Report
• Management Report of Fund Performance
• Financial Statements

2006 Interim Report (Six Months Ended June 30)

• Interim Management Report of Fund Performance
• Interim Report

2006 Quarterly Portfolio Disclosure

• Quarterly Portfolio Disclosure (Third Quarter Ended September 30, 2006)

2006 Proxy Voting

• Proxy Voting Policies and Procedures
• Proxy Voting Disclosure (July 2005 - June 2006)