X0305 4 2012-04-17 0 0001502012 QR Energy, LP QRE 0001507927 QA Global GP, LLC 1401 MCKINNEY STREET SUITE 2400 HOUSTON TX 77010 0 0 0 1 Indirect Owner 0001508334 Black Diamond Resources 2, LLC 1401 MCKINNEY STREET SUITE 2400 HOUSTON TX 77010 1 0 1 0 0001507928 QA Holdings, LP 1401 MCKINNEY STREET, SUITE 2400 HOUSTON TX 77010 1 0 1 0 0001507885 QA GP, LLC 1401 MCKINNEY STREET, SUITE 2400 HOUSTON TX 77010 1 0 1 0 0001507929 Quantum Aspect Partnership, LP 1401 MCKINNEY STREET, SUITE 2400 HOUSTON TX 77010 1 0 1 0 Common Units 2012-04-17 4 S 0 11297737 19.18 D 0 I See Footnote Represents an aggregate of 11,297,737 common units that were held (i) directly by Quantum Resources A1, LP, Quantum Resources B, LP, QAC Carried WI, LP, Black Diamond Resources, LLC, Quantum Resources C, LP, QAB Carried WI, LP and (ii) indirectly by QA Global GP, LLC, Black Diamond Resources 2, LLC, The Quantum Aspect Partnership, LP, QA GP, LLC and QA Holdings, LP. Direct Owners of the common units sold on April 17, 2012 are reported on a separate Form 4 filed of even date herewith. /s/ Gregory S. Roden on behalf of QA Global GP, LLC, et al. 2012-04-20