20100526:083036 0000950123-10-006854 CORRESP 2 20100129 EAGLE ROCK ENERGY PARTNERS L P 0001364541 1311 680629883 DE 1231 CORRESP THE WEDGE TOWER 1415 LOUISIANA STREET, SUITE 2700 HOUSTON TX 77002 281-408-1200 P.O. BOX 2968 HOUSTON TX 77252 Eagle Rock Energy Partners, L.P. 20060531 Eagle Rock Midstream, L.P. 0001461323 800117305 TX 1231 CORRESP THE WEDGE TOWER 1415 LOUISIANA, SUITE 2700 HOUSTON TX 77002 281-408-1200 P.O. BOX 2968 HOUSTON TX 77252 Eagle Rock Desoto Pipeline, L.P. 0001461324 061734875 TX 1231 CORRESP THE WEDGE TOWER 1415 LOUISIANA STREET, SUITE 2700 HOUSTON TX 77002 281-408-1200 P.O. BOX 1260 HOUSTON TX 77252 CMA Pipeline Partnership, LLC 0001461325 800117302 TX 1231 CORRESP THE WEDGE TOWER 1415 LOUISIANA STREET, SUITE 2700 HOUSTON TX 77002 281-408-1200 P.O. BOX 2968 HOUSTON TX 77252 Galveston Bay Gathering, LLC 0001461326 204591290 TX 1231 CORRESP THE WEDGE TOWER 1415 LOUISIANA STREET, SUITE 2700 HOUSTON TX 77002 281-408-1200 P.O. BOX 2968 HOUSTON TX 77252 Eagle Rock GOM, L.P. 0001461327 800117311 TX 1231 CORRESP THE WEDGE TOWER 1415 LOUISIANA STREET, SUITE 2700 HOUSTON TX 77002 281-408-1200 P.O. BOX 2968 HOUSTON TX 77252 Superior Gas Compression, LLC 0001461328 870802353 TX 1231 CORRESP THE WEDGE TOWER 1415 LOUISIANA STREET, SUITE 2700 HOUSTON TX 77002 281-408-1200 P.O. BOX 2968 HOUSTON TX 77252 Escambia Asset Co. LLC 0001461329 204942000 DE 1231 CORRESP THE WEDGE TOWER 1415 LOUISIANA STREET, SUITE 2700 HOUSTON TX 77002 281-408-1200 P.O. BOX 2968 HOUSTON TX 77252 Escambia Operating Co. LLC 0001461330 204943869 DE 1231 CORRESP THE WEDGE TOWER 1415 LOUISIANA STREET, SUITE 2700 HOUSTON TX 77002 281-408-1200 P.O. BOX 2968 HOUSTON TX 77252 Eagle Rock Acquisition Partnership II, L.P. 0001461332 262830903 DE 1231 CORRESP THE WEDGE TOWER 1415 LOUISIANA STREET, SUITE 2700 HOUSTON TX 77002 281-408-1200 P.O. BOX 2968 HOUSTON TX 77252 Eagle Rock Upstream Development Co II, Inc. 0001461333 201477453 DE 1231 CORRESP THE WEDGE TOWER 1415 LOUISIANA STREET, SUITE 2700 HOUSTON TX 77002 281-408-1200 P.O. BOX 2968 HOUSTON TX 77252 Eagle Rock Energy Acquisition Co. II, Inc. 0001461334 262463364 DE 1231 CORRESP THE WEDGE TOWER 1415 LOUISIANA STREET, SUITE 2700 HOUSTON TX 77002 281-408-1200 P.O. BOX 2968 HOUSTON TX 77252 Eagle Rock Upstream Development II, L.P. 0001461335 204005491 TX 1231 CORRESP THE WEDGE TOWER 1415 LOUISIANA STREET, SUITE 2700 HOUSTON TX 77002 281-408-1200 P.O. BOX 2968 HOUSTON TX 77252 Eagle Rock Acquisition Partnership, L.P. 0001461336 261206706 DE 1231 CORRESP THE WEDGE TOWER 1415 LOUISIANA STREET, SUITE 2700 HOUSTON TX 77002 281-408-1200 P.O. BOX 2968 HOUSTON TX 77252 Eagle Rock Upstream Development Company, Inc. 0001461337 201560113 DE 1231 CORRESP THE WEDGE TOWER 1415 LOUISIANA STREET, SUITE 2700 HOUSTON TX 77002 281-408-1200 P.O. BOX 2968 HOUSTON TX 77252 Eagle Rock Energy Acquisition Co., Inc. 0001461338 260604564 DE 1231 CORRESP THE WEDGE TOWER 1415 LOUISIANA STREET, SUITE 2700 HOUSTON TX 77002 281-408-1200 P.O. BOX 2968 HOUSTON TX 77252 Hesco Pipeline Company, L.L.C. 0001461339 571219129 TX 1231 CORRESP THE WEDGE TOWER 1415 LOUISIANA STREET, SUITE 2700 HOUSTON TX 77002 281-408-1200 P.O. BOX 2968 HOUSTON TX 77252 Hesco Gathering Company, LLC 0001461340 742875152 TX 1231 CORRESP THE WEDGE TOWER 1415 LOUISIANA STREET, SUITE 2700 HOUSTON TX 77002 281-408-1200 P.O. BOX 2968 HOUSTON TX 77252 EROC Gathering Company, LP 0001461341 204435595 DE 1231 CORRESP THE WEDGE TOWER 1415 LOUISIANA STREET, SUITE 2700 HOUSTON TX 77002 281-408-1200 P.O. BOX 2968 HOUSTON TX 77252 EROC Quitman Gathering Co., LP 0001461342 204435455 DE 1231 CORRESP THE WEDGE TOWER 1415 LOUISIANA STREET, SUITE 2700 HOUSTON TX 77002 281-408-1200 P.O. BOX 2968 HOUSTON TX 77252 EROC Midstream Energy, L.P. 0001461343 141927069 DE 1231 CORRESP THE WEDGE TOWER 1415 LOUISIANA STREET, SUITE 2700 HOUSTON TX 77002 281-408-1200 P.O. BOX 2968 HOUSTON TX 77252 Eagle Rock Development Company, L.L.C. 0001461344 201230622 TX 1231 CORRESP THE WEDGE TOWER 1415 LOUISIANA STREET, SUITE 2700 HOUSTON TX 77002 281-408-1200 P.O. BOX 2968 HOUSTON TX 77252 Eagle Rock Production, L.P. 0001461345 020724370 TX 1231 CORRESP THE WEDGE TOWER 1415 LOUISIANA, SUITE 2700 HOUSTON TX 77002 281-408-1200 P.O. BOX 2968 HOUSTON TX 77252 EROC Production, LLC 0001461346 261562116 DE 1231 CORRESP THE WEDGE TOWER 1415 LOUISIANA STREET, SUITE 2700 HOUSTON TX 77002 281-408-1200 P.O. BOX 2968 HOUSTON TX 77252 Eagle Rock Field Services, L.P. 0001461348 203609438 TX 1231 CORRESP THE WEDGE TOWER 1415 LOUISIANA STREET, SUITE 2700 HOUSTON TX 77002 281-408-1200 P.O. BOX 2968 HOUSTON TX 77252 Eagle Rock Operating, L.P. 0001461349 200410508 TX 1231 CORRESP THE WEDGE TOWER 1415 LOUISIANA STREET, SUITE 2700 HOUSTON TX 77002 281-408-1200 P.O. BOX HOUSTON TX 77060 Eagle Rock Gas Gathering & Processing, Ltd. 0001461350 203296893 TX 1209 CORRESP THE WEDGE TOWER 1415 LOUISIANA, SUITE 2700 HOUSTON TX 77002 281-408-1200 P.O. BOX 2968 HOUSTON TX 77252 Midstream Gas Services, L.P. 0001461351 331103950 TX 1209 CORRESP THE WEDGE TOWER 1415 LOUISIANA STREET, SUITE 2700 HOUSTON TX 77252 281-408-1200 P.O. BOX 2968 HOUSTON TX 77252 Eagle Rock Pipeline, L.P. 0001461352 203804503 DE 1209 CORRESP THE WEDGE TOWER 1415 LOUISIANA STREET, SUITE 2700 HOUSTON TX 77252 281-408-1200 P.O. BOX 2968 HOUSTON TX 77252 Eagle Rock Pipeline GP, LLC 0001461353 203804451 DE 1209 CORRESP THE WEDGE TOWER 1415 LOUISIANA STREET, SUITE 2700 HOUSTON TX 77002 281-408-1200 P.O. BOX 2968 HOUSTON TX 77252 Eagle Rock Energy Services, L.P. 0001461545 203384873 TX 1209 CORRESP THE WEDGE TOWER 1415 LOUISIANA STREET, SUITE 2700 HOUSTON TX 77002 281-408-1200 P.O. BOX 2968 HOUSTON TX 77252 Eagle Rock Energy Finance Corp. 0001461804 264627240 DE 1231 CORRESP THE WEDGE TOWER 1415 LOUISIANA STREET, SUITE 2700 HOUSTON TX 77002 281-408-1200 P.O. BOX 2968 HOUSTON TX 77252