| ABMB Engineers, Inc. | KPMG Peat Marwick LLP |
| Acacia Natural Gas Corporation | Lane, Powell, Spears & Lubersky |
| Alaska Railroad Corporation | Law Offices of Linda L. Daube |
| Allen Samuels Auto Group | Levin & Kasner, PC |
| Alliance Pipeline L.P. | Lewis & Clark Rural Water System, Inc. |
| American Acquisition Group, LLC | Lewis Realty Advisors |
| Anadarka Petroleum Corporation | Lockwood, Andrews & Newman, Inc. |
| Andrews Kurth | Longhorn Partners Pipeline |
| ANR Pipeline Company | Louetta Road 200 LTD |
| APC Holdings, Inc. | Lower Colorado River Authority |
| Archer Chrysler Jeep, Inc. | Magellan Pipeline Company |
| Arizona Department of Transportation | Massachusetts Turnpike Authority |
| Artlite Broadcasting Corporation, Inc. | Mayer, Brown, Rowe & Maw LLP |
| ARWS Texas LLP | Mayor Day Caldwell & Keeton |
| Barron, Adler & Anderson, LLP | McLane, Graf, Raulerson & Middleton |
| Bear Creek Storage Company | McMillian Investments |
| Beirne, Maynard and Parsons, LLP | Methodist Retirement Communities |
| BMH Eagleton | METRO Houston |
| Boardwalk Pipeline Partners, LP | Michael J. Simmang, P.C. & Assoc. |
| BP Pipeline (North America) | Mid-America Pipeline Company |
| Brazoria County Airport | Millennium Midstream Energy, LLC |
| Brazoria County Interconnector Gas LLC | Millikin and Fitton |
| Brewster Realty Advisors | Mississippi Department of Transportation |
| Briggs Field Services, Inc. | Mitchell Energy |
| Buchanan & Kent | Mitchell Gas Services L.P. |
| Burlington Northern & Santa Fe (BNSF) | Montgomery Watson Harza |
| Butler & Hailey | Monument Pipeline LP |
| C.R. Clark Realty, Inc. | Mooney & Condino, P.C. |
| Calhoun County Navigation District | Morrison & Hecker |
| Cambridge Capital Group, Inc. | Mossy Nissan |
| Cameron County, Texas | Murphree & Murray, LLP |
| Camp Dresser & McKee Inc. | Mustang Engineering, Inc. |
| Cantera Gas Gathering Co. | Nelson Consulting, Inc. |
| Centerpoint Energy | New Mexico State Highway |
| Chrysler Financial Corporation | O.R. Colan Associates, Inc. |
| CITGO Petroleum Corp. | OGM Land Company |
| City of Houston | Panhandle Energy |
| City of Houston Airport System Properties | Paragon Partners Ltd. |
| City of Mesa | Pedley Zielke Gorniier & Pence PLLC |
| City of Phoenix | People Energy |
| City of Santa Fe, New Mexico | PGE Gas Transmission-Teco |
| City of Tempe | Pharos Corporation |
| City Public Service | Pinnacle Consulting Management Group |
| Cloverfield Airport | Plummer & Farmer |
| Coates Field Service | Port of Freeport |
| Cobb, Fendley & Associates | Post, Buckley, Shuh & Jernigan |
| Colonial Pipeline | Postle Property Services, Inc. |
| ConocoPhillips Company | PRE Consultants |
| Continental Carbon Company | Professional Right of Way Services |
| Contract Land Staff, Inc. | Qwest Communications Corp. |
| Copano Pipelines/Upper Gulf Coast, L.P. | Reliant Energy HL&P |
| Crosstex Energy Services | Right of Way Acquisition Associates |
| CSP Energy | ROW Acquisitions Services, Inc. |
| Dallas Area Rapid Transit | Ryley Carlock & Applewhite |
| Dallas City Attorney's Office | Salem Land Services |
| Dallas County Public Works | Salt River Project |
| David Craig & Company, Inc. | Santa Fe Southern Railway |
| Dawkins & Carter | Science Applications International Corp |
| Denbury Resources | Seadrift Pipeline |
| Dow Hydrocarbons and Resources, Inc. | Sempra Energy |
| DTI Digital Teleport, Inc. | Senior Manager-Real Estate |
| DuBray Land Services, Inc. | Senterra Corporation |
| Duke Energy Gas Transmission Corp. | Sidley Austin Brown & Wood LLP |
| Duke Energy NGL Services LP | So. Mississippi Electric Power Assoc. |
| Duke Energy Services, Inc. | Somerset House Publishing |
| Dukes, Dukes and Keating | South Carolina Pipeline Corporation |
| Dynegy Midstream LLP | Southwestern Bell Telephone |
| Eagle Rock Energy Services LP | Southwestern Gas Pipeline, Inc. |
| Eastman Chemical | Sunoco Logistics, LLP |
| El Paso Corp. | Supervisor Right of Way Department |
| El Paso Field Services | Tech Prose |
| Enbridge Energy Company, Inc. | Tejas Energy, LLC |
| Enbridge Pipeline LP | Tejas Gas Operating LLC |
| Energy Transfer Company | Tennessee Gas Pipeline Company |
| EnerSys Corporation | TEPPCO Crude Oil, L.L.C. |
| Enterprise Products LLP | Texas Department of Transportation |
| Enterprise Texas Pipeline LP | Texas Mexican Railway Company |
| Equilon Pipeline Company LLC | The Pennartz Law Firm, P.L.C. |
| ExxonMobil Cooporation | Total Land Services, Inc. |
| ExxonMobil Pipeline Company | Town of Summit, Mississippi |
| Federal Highway Administration | Transwestern Pipeline Company |
| Fizer Beck Webster Bentley & Scroggins | Trunkline Gas Company LLC |
| Flowers Davis Law Firm | U.S. Trust Company of Texas |
| Fulbright & Jaworski, L.L.P. | Union Pacific Railroad Company |
| Germer, Bernsen & Gertz L.L.P. | Universal Ensco, Inc. |
| Global Right-of-Way Services, Inc. | Universal Field Services, Inc. |
| Gulf Coast Property Acquisition, Inc. | University of Texas Systems |
| Gulf States Utility | Utah Department of Transportation |
| Gullett & Associates, Inc. | Valero Logistics Operations, LP |
| Harris County Attorney's Office | VanCott, Bagley, Cornwall & McCarthy |
| Hayes, Coffey & Berry | Verizon Communications |
| Haynes and Boone, LLP | Verizon Southwest |
| Houston Lighting and Power | Vinson & Elkins |
| Houston Pipe Line Company | Vinson & Elkins |
| Houston Port Authority | Virginia Department of Transportation |
| Houston Trust Company | Visinsky & Associates |
| Hunt Engine, Inc. | Vyvx Corporation |
| Hunton & Williams | W. Allyn Hoagland, Attorney at Law |
| IBE Trade Corp. | Waller Lansden Dortch & Davis |
| ICF Kaiser Engineers, Inc. | West Virginia Dept. of Transportation |
| Idaho Transportation Department | WesTTex 66 Pipeline Co. |
| INGAA Foundation | Williams Communications |
| IRS Beckley Finance Center | Williams Energy Services |
| Jackson Walker LLP | Williams Gas Pipeline-Transco |
| Jerome Green & Associates | Wilbanks Corporation |
| Johnson, Radcliffe, & Petrov, L.L.P. | Willcox & Savage |
| Kanaly Trust Company | Williford, Gearhart & Knight |
| Karr Tuttle Campbell | Wommack Law Firm, PC |
| KB Real Estate Advisors | Woods Rogers PLC |
| Kenneth D. Martin & Associates, P.C. | WRC Corporation |
| Kinder Morgan | Zabel Freeman LLP |
| Klein & Havlick |