Distributions

*Important:  Effective April 24, 2009 the units were consolidated on a 3 to 1 basis.

Year

Distribution

2010 (8 months) $0.80 per unit
2009 (12 months) $1.61 per unit
2008 (12 months) $2.52 per unit
2007 (12 months) $2.52 per unit
2006 (12 months) $2.52 per unit
2005 (12 months) $2.52 per unit
2004 (12 months) $2.52 per unit
2003 (12 months) $2.52 per unit
2002 (12 months) $2.52 per unit
2001 (12 months) $2.52 per unit
2000 (12 months) $2.46 per unit
1999 (12 months) $2.27 per unit
1998 (12 months) $2.85 per unit
1997 (4 months) $1.08 per unit

EnerVest pays monthly distributions to unitholders of record on the last business day of each month, payable on or about the 15th of the next month.

Record Date

Payable Date

Distribution Amount

August 2010 September 2010 0.100
July 2010 August 2010 0.100
June 2010 July 2010 0.100
May 2010 June 2010 0.100
April 2010 May 2010 0.100
March 2010 April 2010 0.100
February 2010 March 2010 0.100
January 2010 February 2010 0.100
December 2009 January 2010 0.100
November 2009 December 2009 0.100
October 2009 November 2009 0.100
September 2009 October 2009 0.100
August 2009 September 2009 0.100
July 2009 August 2009 0.150
June 2009 July 2009 0.150
May 2009 June 2009 0.150
April 2009 May 2009 0.150
March 2009 April 2009 0.150
February 2009 March 2009 0.150
January 2009 February 2009 0.210
December 2008 January 2009 0.210
November 2008 December 2008 0.210
October 2008 November 2008 0.210
September 2008 October 2008 0.210
August 2008 September 2008 0.210
July 2008 August 2008 0.210
June 2008 July 2008 0.210
May 2008 June 2008 0.210
April 2008 May 2008 0.210
March 2008 April 2008 0.210
February 2008 March 2008 0.210
January 2008 February 2008 0.210
December 2007 January 2008 0.210
November 2007 December 2007 0.210
October 2007 November 2007 0.210
September 2007 October 2007 0.210
August 2007 September 2007 0.210
July 2007 August 2007 0.210
June 2007 July 2007 0.210
May 2007 June 2007 0.210
April 2007 May 2007 0.210
March 2007 April 2007 0.210
February 2007 March 2007 0.210
January 2007 February 2007 0.210
December 2006 January 2007 0.210
November 2006 December 2006 0.210
October 2006 November 2006 0.210
September 2006 October 2006 0.210
August 2006 September 2006 0.210
July 2006 August 2006 0.210
June 2006 July 2006 0.210
May 2006 June 2006 0.210
April 2006 May 2006 0.210
March 2006 April 2006 0.210
February 2006 March 2006 0.210
January 2006 February 2006 0.210
December 2005 January 2006 0.210
November 2005 December 2005 0.210
October 2005 November 2005 0.210
September 2005 October 2005 0.210
August 2005 September 2005 0.210
July 2005 August 2005 0.210
June 2005 July 2005 0.210
May 2005 June 2005 0.210
April 2005 May 2005 0.210
March 2005 April 2005 0.210
February 2005 March 2005 0.210
January 2005 February 2005 0.210
December 2004 January 2005 0.210
November 2004 December 2004 0.210
October 2004 November 2004 0.210
September 2004 October 2004 0.210
August 2004 September 2004 0.210
July 2004 August 2004 0.210
June 2004 July 2004 0.210
May 2004 June 2004 0.210
April 2004 May 2004 0.210
March 2004 April 2004 0.210
February 2004 March 2004 0.210
January 2004 February 2004 0.210
December 2003 January 2004 0.210
November 2003 December 2003 0.210
October 2003 November 2003 0.210
September 2003 October 2003 0.210
August 2003 September 2003 0.210
July 2003 August 2003 0.210
June 2003 July 2003 0.210
May 2003 June 2003 0.210
April 2003 May 2003 0.210
March 2003 April 2003 0.210
February 2003 March 2003 0.210
January 2003 February 2003 0.210
December 2002 January 2003 0.210
November 2002 December 2002 0.210
October 2002 November 2002 0.210
September 2002 October 2002 0.210
August 2002 September 2002 0.210
July 2002 August 2002 0.210
June 2002 July 2002 0.210
May 2002 June 2002 0.210
April 2002 May 2002 0.210
March 2002 April 2002 0.210
February 2002 March 2002 0.210
January 2002 February 2002 0.210
December 2001 January 2002 0.210
November 2001 December 2001 0.210
October 2001 November 2001 0.210
September 2001 October 2001 0.210
August 2001 September 2001 0.210
July 2001 August 2001 0.210
June 2001 July 2001 0.210
May 2001 June 2001 0.210
April 2001 May 2001 0.210
March 2001 April 2001 0.210
February 2001 March 2001 0.210
January 2001 February 2001 0.210
December 2000 January 2001 0.210
November 2000 December 2000 0.210
October 2000 November 2000 0.210
September 2000 October 2000 0.210
August 2000 September 2000 0.210
July 2000 August 2000 0.210
June 2000 July 2000 0.210
May 2000 June 2000 0.210
April 2000 May 2000 0.195
March 2000 April 2000 0.195
February 2000 March 2000 0.195
January 2000 February 2000 0.195
December 1999 January 2000 0.195
November 1999 December 1999 0.180
October 1999 November 1999 0.180
September 1999 October 1999 0.180
August 1999 September 1999 0.180
July 1999 August 1999 0.180
June 1999 July 1999 0.180
May 1999 June 1999 0.180
April 1999 May 1999 0.180
March 1999 April 1999 0.210
February 1999 March 1999 0.210
January 1999 February 1999 0.210
December 1998 January 1999 0.210
November 1998 December 1998 0.210
October 1998 November 1998 0.210
September 1998 October 1998 0.210
August 1998 September 1998 0.210
July 1998 August 1998 0.240
June 1998 July 1998 0.240
May 1998 June 1998 0.240
April 1998 May 1998 0.270
March 1998 April 1998 0.270
February 1998 March 1998 0.270
January 1998 February 1998 0.270
December 1997 January 1998 0.270
November 1997 December 1997 0.270
October 1997 November 1997 0.270
September 1997 October 1997 0.270