X0303 4 2010-06-23 0 0001364541 EAGLE ROCK ENERGY PARTNERS L P EROC 0001344916 White William Kemper EAGLE ROCK ENERGY PARTNERS, L.P. P.O. BOX 2968 HOUSTON TX 77252 1 0 0 0 Common Units Representing Limited Partner Interest 2010-06-23 4 X 0 3886 2.50 A 14991 I See note 6 Common Units Representing Limited Partner Interest 2010-06-23 4 X 0 7325 2.50 A 28257 D Subscription Rights 2.50 2010-06-23 4 X 0 11211 2.5 D 2010-06-01 2010-06-30 Common Units and Warrants 11211 0 D Warrants 6.00 2010-06-23 4 X 0 3886 2.50 A 2010-08-15 2012-05-15 Common Units 3886 3886 I See note 6 Warrants 6.00 2010-06-23 4 X 0 7325 2.50 A 2010-08-15 2012-05-15 Common Units 7325 7325 D Represents common units that will be received, after the close of the rights offering, from the exercise of subscription rights. Represents the exercise price of each subscription right entitling the holder to acquire, for $2.50 in cash, (i) one common unit and (ii) one warrant to purchase an additional common unit for $6.00 on the dates specified in Footnote 5. Each Warrant entitles the holder to acquire, for $6.00 in cash, one common unit on the dates specified in Footnote 5. Represents warrants that will be received, after the close of the rights offering, from the exercise of subscription rights. Warrants are only exercisable on each of August 15, 2010, November 15, 2010, March 15, 2011, May 15, 2011, August 15, 2011, November 15, 2011, March 15, 2012 and May 15, 2012. The warrants will be freely tradeable starting on or about July 1, 2010 until May 15, 2012. These securities are held in a trust which the reporting person controls. Certain of these securities are held in an IRA for the benefit of the reporting person. The reporting person is a director of Eagle Rock Energy G&P, LLC, the general partner of Eagle Rock Energy GP, L.P., the general partner of registrant. /s/ Charles C. Boettcher, Attorney-In-Fact 2010-06-24