The Following List of Locations Includes Those Locations That Will Have Name Changes Effective

The following list of locations includes those locations that will have name changes effective June 1, 2005. SSC has contacted operators for these changes so that SSC and the customer can reference a location by a common name. These changes this will hopefully lessen confusion between SSC and Operators. As always SSC appreciates customer patience as we make changes to better serve our customer needs.

Location ID Current Location Name Revised Location Name Operator 4 Transok Noble Enogex Noble Transok Inc. 7 Kn Thomas KMIGT Thomas Kinder Morgan 33 Ong Mutual OGT Mutual Oneok Gas Transmission 52 Ps of Co Chalk Bluffs PSCO Chalk Bluff Public Srv. Co. 7158 Maysville Plt - Oneok OFS Maysville Oneok Gas Processing, Llc 11435 Marsh Interconnect OkTex Marsh Interconnect Oktex Pipeline Company 12890 Washington & Rodgers Pld Diamond S PLD Northeast Shelf Energy, L.l.c. 12986 Tucker Pld Ecc Oglesby Ecc Energy Corporation 13104 Energy Services Higgins Enbridge Higgins Enbridge Pipelines (Texas Gathering) L.p 13144 Berry Petroleum Weaverly-Berry Berry Petroleum Company 13565 Niobrara Pld St. Francis Thoroughbred Associates, Llc. 14384 Willis Gas Pld Dakota Production Pld. Dakota Production Company, Inc. 14391 Phoenix Ta North Williams Dart Cherokee Basin Operating Company, L.L.C. 14513 Ngm Mccutchin Pld Lenco Gel Oil & Gas, Inc. 14872 Wray Pld Wray-Berry Berry Petroleum Company 14971 Mid-cont. Hutchinson KGST Ark River Kansas Gas 15127 Transok Grady Enogex Grady Transok Gas 15223 Nimrod - Pld Nimrod Lumen Energy Corporation 15300 Oneok Ellis County OFS Stateline Oneok Field Services 15430 Velma Plant Velma Gas Plant Spectrum Field Services 15907 Vanguard Res. Ark City Pld Eagle Pipeline Ark City Eagle Pipeline, Inc. 16315 Kn Yuma KMIGT Yuma Km Interstate 16330 Hobart Ranch Plant Outlet Enbridge Hobart Enbridge Pipelines (Texas Gathering) L.p 16534 Quapaw - Cotton Valley Quapaw Cotton Valley Compression, L. L. C. 16582 Nowata County West Lenapah Bluestem Pipeline, Llc 16584 Kn Hemphill Co. Oneok Westex Hemphill Oneok Westex Transmission 16592 KN-Cass Co Missouri KMIGT Sugar Creek Km Interstate 16593 Kn-Franklin county, KS KMIGT Franklin Km Interstate 16604 Woolaroc Pld Osage Hills Northern Osage Gas Assoc. Llc. 16620 Canadian Plt-hemphill Co. OFS Canadian Oneok Texas Field Services, Lp Crescendo Plant-hemphill 16621 Co BP-Hemphill Plant BP America Production Company 16623 Nowata County STP-Lenapah Bluestem Pipeline, Llc 16646 Ecc Washington Co. Ecc Moore Ecc Energy Corporation 16661 Ecc Energy-barentz Pld Ecc Nowata Ecc Energy Corporation 16667 Us Exploration Pld Powell Bluestem Pipeline, Llc 16700 Ponderosa Receipt Rettman Bluestem Pipeline, Llc 16746 Hopewell Pld Roxana M H Shelby Dba Hopewell Operating, Inc. 16747 Savage Pipeline, Llc Petrol Oil & Gas Petrol Oil & Gas Inc. 16774 Mangels East Lenapah Bluestem Pipeline, Llc 16791 Cherokee Basin - Farmland South Williams Dart Cherokee Basin Operating Company, L.L.C. Location ID Current Location Name Revised Location Name Operator 16794 N. Natural Gas-kiowa Co. NNG Kiowa Northern Natl Sand Dune-Cheyenne 16813 Plains Cheyenne Plains Sand Dune Cheyenne Plains 16821 Rosewood Resources Yuma West Rosewood Resources, Inc. 37175 Noram Jane CP Jane Centerpoint Energy 97412 Kn Grant KMIGT Grant Kinder Morgan