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Click to download a printable Membership Application in Adobe Acrobat PDF format. Company Information Please choose an option:   Input a New Company Company Name      Use an Existing Company Company  (None) A. E. Feldman Associates, Inc. A.G. Edwards & Sons, Inc. ABQ Energy Group Abraxas Petroleum Corporation Accenture LLP Access Education Corporation Access Intelligence / Interchange Energy AccuWeather, Inc. Acta Data & Services, LLC Adams Harris Adams Resources Marketing Ltd. Advantage Technical Resourcing Affinity Management Group Air Liquide Alamo Energy, LC All Tech Industries Allegro Development Alpheus Communications LLC Alsup & Palmer Ambit Energy Ameresco Amerex Natural Gas, Ltd. American Electric Power American Midstream Amicus Energy Search Anadarko Energy Services Company Anadarko Midstream Anadarko Petroleum Corporation ANR Pipeline - TransCanada Aon Energy Apache Corporation ArcLight Energy Marketing Arena Energy Argus Media Armos Ventures International ASCentergy Corporation Aspect Energy, LLC Asset RIsk Management LLC Asset Risk Management, LLC Associated Energy Services LLC Astra Power LLC Aternity Atlas Commodities LLC Atmos Energy Corporation Atmos Energy Holdings Inc. Atmos Energy Marketing, LLC Atmos Energy Mktg & Atmos Pipeline - Texas Atmos Pipeline - Texas ATP Oil & Gas Corporation Audubon Engineering Aurora Power Resources, Inc. Autana Pipeline Partners, L.P. Babcock Eagleton Inc. Baker & O'Brien, Inc. Ballard Natural Gas, LLC Bank of Texas Barclays Capital Beacon Petroleum Management, Inc. Bear Energy, LP Benjamin Schlesinger & Associates, Inc. BENTEK Energy, LLC Bethel Consulting, LLC Bexar Energy Holdings, Inc. BFX Midstream, LLC BG Energy Merchants, LLC BG LNG Services, LLC BHP Billiton BHP Billiton Petroleum Americas Inc. BioUrja Trading, LLC BIS TEPSCO BKD LLP Black & Veatch Black Pool Energy, LP BlackBrush Oil & Gas, LP Blackstone Technology Bloomberg, LP Blue Flame CGS Energy Brokerage Blue Phoenix Midstream Blue Rock Energy Capital BNP Paribas Boardwalk Pipeline Partners LP Bobcat Gas Storage Bopco, LP Borderless Services Boundless Network / Austin - TX BP Alternative Energy North America, Inc. BP America Production Company BP America, Inc. BP Canada Energy Marketing Corporation BP Energy Company BP Gas & Power Breittling Royalties Bridgeline Holdings, LP Brown, Williams, Moorhead & Quinn, Inc. Browning Oil Company, Inc. Burlington Resources Inc. Burns & McDonnell Engineering BurrWolff CABO Energy Enterprises LLC Cabot Oil & Gas Corporation Cactus Gas Energy Cadence Bank Caiman Energy, LLC Calpine Corporation Calpine Energy Services Calpine Merchant Services Company Campeon Gas Corporation Canadian Consulate / Houston Cantera Natural Gas, LLC Capital Decisions, Inc. Capitalize Consulting LLC Cardinal Gas Storage Partners Cardinal Midstream LLC Castle Power LLC CDM MAX Cedar Gas Company CenterPoint Energy CenterPoint Energy - Entex CenterPoint Energy - Mississippi River Transmission CenterPoint Energy Field Services CenterPoint Energy Field Services - ServiceStar CenterPoint Energy Field Services, LLC CenterPoint Energy Gas Transmission CenterPoint Energy Interstate Pipelines CenterPoint Energy Services, Inc. Central Crude, Inc. Ceritas Group CF Industries Inc. CGG Veritas Champion Energy Services Channelview Cogeneration Chaparral Energy, LLC Cheniere Energy, Inc. Cheniere Marketing, Inc. Cheniere Pipeline Company, a Cheniere Energy Company Chesapeake Energy Marketing Chesapeake Exploration Chesler Analytics LLC Chevron Global Gas Chevron Natural Gas Chevron Pipe Line Company Chevron Technology Ventures, a Division of Chevron U.S.A. Chevron USA ChevronTexaco Natural Gas Cheyenne Energy Services LLC Choice Energy Choice Energy Services Retail CIBC World Markets CIMA Energy, Ltd. Cimarex Energy Co. Citation Oil & Gas Corporation CITGO Petroleum Citigroup Energy Inc. City Public Services of San Antonio, TX Classic Energy Clay Thomas PC Clean Gas, Inc. Clearwater Enterprises, LLC CloudReplica CME Group Coast Energy Group LLC CoEnergy Trading Company Cokinos Energy Corporation Colonial Energy Inc. Colorado Springs Utilities Columbia Gas Transmission - NiSource Columbia Gulf Transmission - NiSource Commerce Energy, Inc. Commodity Advisory Corp of Texas Commodity Risk Management LP Common Resources ConAgra Trade Group, Inc. Conectiv Energy ConEdison Solutions Conestoga-Rovers & Associates ConfirmHub ConocoPhillips Gas & Power Marketing ConocoPhillips, Inc. Consolidated Edison Co. of New York Constellation Energy Commodities Group Constellation NewEnergy Consultant Consumers Energy Continental Resources, Inc. Conway MacKenzie, Inc. Copano Energy Coquest Energy Services Inc. CoQuest Structured Products Cordova Energy Company CoServ Gas Costar Midstream LLC Cowries Group, LLC CPS Energy Credit Suisse Energy Crestwood Midstream Partners LLC Crimson Exploration Inc. CrossGates Consulting Company LLC Crosstex Energy Services, L.P. CVR Energy Dallas Production, Inc. Data Management Solutions - GasPro David Russell Consulting DCP Midstream Decker Operating Company, L.L.C. Delmarva Power Deloitte & Touche Deloitte Financial Advisory Services LP Deloitte MarketPoint Delta Energy, LLC Denali Oil & Gas Management, LLC Detechtion Technologies LLC Deutsche Bank Energy Trading LLC Development Resources, Inc. Devon Energy Corporation Devon Gas Services, LP DGT Capital Direct Energy Dixon Royalty Dominion Energy Marketing Inc. Dominion Gas , L.L.C. Dominion Transmission, Inc. Dow Hydrocarbons & Resources Drillinginfo, Inc. DSBWorldWide, Inc. DSP Resources, LLC DTE Energy DTN Dublin Lane LLC Ducks Unlimited Duke Energy Field Services Duke Energy Gas Transmission Duke Energy North America DV Allen Consulting Dynegy Marketing & Trade Dynegy, Inc. e-Systems Eagle Energy Partners Eagle Information Mapping Eagle Rock Energy Partners LP Eastex Crude Company Eastman Gas Company LLC Eco Risk Markets LLC eCorp Development eCORP Energy Marketing Company, LLC eCORP International EDF Trading North America Edison Mission Marketing & Trading El Paso / ANR Pipeline Company El Paso / Tennessee Gas Pipeline El Paso / Western Pipelines El Paso Corporation El Paso Exploration & Production LP El Paso Marketing, L.P. El Paso Midstream Company El Paso Pipeline Group Eland Energy Inc. Element Markets Elm Ridge Exploration Company, LLC EMK 3 Empire Pipeline Corporation EN*SIGHT Advisors Enbridge (USA) Inc. Enbridge Energy Company, Inc. Enbridge Marketing (US) LP Enbridge Offshore Pipelines Enbridge Pipelines EnCana Marketing (USA) Inc. EnCana Oil & Gas (USA) Inc. EnCap Flatrock Midstream Encore Acquisition Company Endure Energy LLC Enerdynamics Enerfax Daily Enerfin Resources Company Energen Resources Corporation Energy Choice Energy Financial & Physical, LP ENERGY International Corporation Energy Management Institute Energy Market Decisions, Inc. Energy Partners, Ltd. Energy Personnel Energy Seminars Energy Solutions International, Inc. Energy Sourcing Energy Spectrum Capital Energy Trade Management (ETM) Energy Transfer - Houston Pipe Line Energy Transfer - Transwestern Pipeline Energy Transfer Company Energy Transfer Company - ETC Marketing Energy Upgrade, Inc. Energy XXI EnergySolutions International EnergySteward.com EnergyXXI ENGAS Eni Petroleum Company, Inc. ENI USA Gas Marketing LLC Enjet, Inc. Enjet, LLC Enogex LLC Enogex, Inc. Enport Advisors EnRisk Partners, LLC Enserco Energy, Inc. Ensight Advisors Enstor Operating Entergy Services, Inc. Entergy Wholesale Commodities Enterprise Field Services, LLC Enterprise Gas Marketing, L.P. Enterprise Partnership Scotland Enterprise Products Operating Enterprise Products Partners L.P. Enterprise Texas Pipeline LLC Enterprise Texas Pipelines L.P. Enuit, LLc EnvaPower EOG Resources, Inc. EOXLive EPCO, Inc. Epcor Merchant & Capital L.P. ePsolutions ERCOT Ernst & Young LLP Eser Corporation eServices ETR SERVICES, LTD Excelerate Energy Excelergy Exco Resources, Inc. Executive Source Personnel Exelon Generation Company LLC Exelon Power Team ExxonMobil Gas & Power Mktg Fairchild & Stan Fairway Development, LLC Faulkner Opportunity LLC Federal Energy Regulatory Commission Finley Resources First Texas Energy Corporation Flatrock Energy Advisors LLC Flint Hills Resources Florida Gas Transmission Forest Oil Corporation Fortis Energy, LLC Foster Energy Services LLC Foster Wheeler Martinez Fowler Energy Company FPL Energy Power Marketing, Inc. FPL Energy, Inc. FPL U.S. Gas Assets Free Agent Freeport LNG Development, LP FTI Consulting, Inc. FuelTs Fulcrum Power Services, LP Fundamental Analytics Gaffney, Cline & Associates Galaxy Energy Services LLC Garland Power & Light Gas Solutions GasTech Engineering Corporation Gateway Energy Corporation Gavilon, LLC Gazprom Marketing & Trading USA, Inc. GDF Suez Energy N.A. GDF Suez International Power Genscape GeoMet, Inc. Georgetown Utility Systems GKRSE (Law Firm) Glencore Ltd. Glenwood Group Global Gas Group, LLC Global Polychem LLC GlobalView GlobalView Software, Inc. Golden Pass LNG Golden Pass Pipeline LLC Golden Triangle Storage Goldman Sachs Goodrich Petroleum Corporation Grant Thornton LLP Great Eastern Energy Greenes Energy Group Greystone Gas Services, Inc. Greystone Oil and Gas Griffon Energy Capital LLC Gulf Coast Energy, Inc. Gulf Coast Gas Gathering LLC Gulf Coast Gas Marketing Gulf Coast Pipeline Company Gulf States Energy, L.P. Gulfstream Pipeline Company Gulfstream Trading Ltd. Hameck Pipeline Company Hawk Field Services LLC Hawk Field Services, LLC Hess Corporation Hess Energy Trading Company LLC HighMount E&P LLC Hilcorp Energy Hills Energy Resources, LLC HNNG Energy, LLC Holland & Davis LLC Holloman Corporation Honeywell Process Solutions Hoosier Energy (REC) Hoover Energy Partners LP Houston Chronicle Huddleston & Company Inc. Hudson Capital Energy Hunt Consolidated, Inc. Hunt Oil Company Hunt, Guillot & Associates LLC Hunter & Hunter Hurd Enterprises, Ltd. Hydrocarbon Exchange Corporation Iberdrola - Enstor Iberdrola Renewables ICAP ICC Energy Corporation ICF International Icon NGS, LLC IDT Energy IHS Energy IIR Energy Implicit Monitoring Solutions Independent Consultant INEOS INFA Energy Innovative Integrys Energy Services Interactive Data IntercontinentalExchange (ICE) International Business Associates Ltd. International Gas Consulting International Paper Company International Power America, Inc. Interstate Natural Gas Association of America IVG Energy J.P. Oil Company, Inc. Jefferson Island Storage & Hub JLA Energy LLC JOCO Energy Jofree Corporation Jonan Energy Ltd. Jones Energy Ltd. JPMorgan Chase & Company JPMorgan Chase Bank, N.A. JVL Advisors JW Gathering Company JX Nippon Oil Exploration (U.S.A.) Limited Kansas Energy LLC Katrina Energy LLC Kenneth C. Kern Search Consultants Kerogen Exploration, Inc. KeySpan Corporation KeySpan Trading Services KeySpan Utility Services Keystone-Beard Equipment Co. Kinder Morgan Intrastate Pipeline Group Kinder Morgan Tejas Pipeline, LP Kinder Morgan Treating LP Kinder Morgan, Inc. King Operating Corporation Kiva Construction Koch Supply & Trading LP KPMG KW International Laser Midstream Company, LLC Laser Northeast Gathering Company, LLC Latitude Technologies LDC Gas Forums LDH Energy Lefrak Energy Legacy Design Group Lehman Brothers Commodity Services Lexecon, an FTI Company Lexicon, Inc. / L-Con Engineers & Constructors, Inc. Liberty Pipeline Services, LLC LIG Midstream Company LIM - a Morningstar Company Linc Energy Systems Linear Energy Management Linn Energy LK Energy LLOG Exploration Company Locke Lord Bissell & Liddell Loco Energy Company, LLC Lodi Gas Storage, LLC Lonestar Midstream, LP Louis Dreyfus Energy Services / eCORP Louis Dreyfus Energy Services, LP Louisiana Natural Gas LS-USA, LLC Lumen Midstream Partnership, LLC Luminant Energy Company, LLC Lyondell / Equistar Chemicals, LP M & R Energy Resources Corp. M&H Energy Services Macquarie Cook Energy LLC MACRO Enterprises Ltd. Magellan Resources Magnum Hunter Resources Magnus Energy Marketing, Ltd. Magnus-Shoreline Gas Mainline Energy, L.L.C. MaloneBailey Manhattan Resources Marabou Inc. Marabou Midstream Services, LP Marathon Oil Company Mariner Energy, Inc. Maritech Resources, Inc. MarkWest Energy Partners LP MarkWest Hydrocarbon MarkWest Oklahoma Gas Company, LLC Marlin Midstream Masefield Natural Gas, Inc. Maxwell Drummond International Mayco Petroleum Inc. McClure Consulting McMoran Exploration Company Medallion Midstream, LLC Meek Family Interests Merchant Energy Partners Meridian Resource Corporation Merit Energy Company Meritage Midstream Services Merrill Lynch Merrill Lynch Commodities, Inc. Mid American Natural Resources Mid States Supply MIDCO / Mid-States Supply Midstates Midstream Gas Solutions MIECO, Inc. Minerals Management Service RIK Mobius Risk Group Modena Operating LLC Momentum Midstream Monarch Natural Gas, LLC MorCam Energy Morgan Keegan Morgan Shields Consulting LLC Morris Pipeline Company MR Sacramento MRE Consulting MS Group Municipal Energy Resources Corp. Murphy Gas Gathering, Inc. Mustang Fuel Marketing Company myPipeServer Nadel and Gussman, LLC NASDAQ OMX Commodity Clearing Company National Energy & Trade, LP National Energy Services Association National Fuel Gas Distribution Corporation National Fuel Gas Supply Corporation National Fuel Marketing Company, LLC National Grid Natural Gas Exchange Inc. Natural Gas Networking, Inc. Natural Gas Pipeline Co of America Natural Resource Group Navigant Consulting NCX Company, LLC NECC Network-Interstate NewEdge Financial Newfield Exploration Company Nexen Marketing U.S.A. Inc. Nexen Petroleum U.S.A. Inc. NextEra Energy / FPL Energy NextEra Energy Power Marketing, LLC NextEra Energy Resources NextEra Energy US Gas Assets NFR Energy LLC NGS Energy, LP NGTS, L.P. NGX US Inc. Nippon Oil Exploration USA Limited NiSource NiSource Gas Transmission & Storage NJR Energy Services NJResources Noble Americas Gas & Power Corp Noble Energy Inc. Noble Energy Marketing & Trade Noble Energy Marketing, Inc. Noble Environmental Power NorTex Gas Storage Company LLC Northern Natural Gas Company NRG Energy O'Hara Law Office, PC Oakcrest Strategy Group Oasis Energy Occidental Energy Marketing Inc. Odyssey Energy Services OGE Energy Resources LLC OGE Enogex Oglethorpe Power Corporation OGS Pipeline, LLC Oil & Gas Marketing Consultant Oil-Tex Petroleum, Inc. Oklahoma Gas & Electric Company Olex Energy Services Olex Energy Services Olsson Associates, Inc. One Nation Energy Solutions, LLC ONEOK Energy Services Company, L.P. ONEOK Gas Transportation, LLC ONEOK Partners, L.P. Onyx Gas Marketing Company Onyx Gas Marketing Company, L.C. Open Access Technology International, Inc. Open Link Financial, Inc. Opportune LLP Optimization Petroleum Technologies Optimus LLC Orion Osprey Energy Partners LLC OTC Global Holdings Oxy Energy Oxy USA, Inc P2 Energy Solutions PAA Natural Gas Storage Pace Global Energy Services Pacific Summit Energy LLC Padraig Energy Ventures Palm Energy Partners Panhandle Energy Panther Pipeline, Ltd. Patron Energy Pearson Watson Millican & Co. PECO Energy Company Penn Virginia Corporation PennWell MAPSearch Pepco Holdings Inc. Peregrine Midstream Partners, LLC Peregrine Pipeline Company, LP Personal Petris Technology, Inc. Petro Resources Corporation Petro-Hunt, LLC Petrobras America Inc. Petrocom Ventures, LTD Petrohawk Energy Corporation Petron Resources Phibro LLC Phoenix Energy Phoenix Gas Pipeline Company Pickett Systems Piedmont Natural Gas Pine Prairie Energy Center, LLC Pinto Energy Partners LP Pioneer Gas Pipeline, Inc. Pioneer Natural Resources USA, Inc. Pioneer Solutions LLC Piper-Morgan Associates PipeStem Energy Group, LLC Pivot Pivotal Energy Development Plains Exploration & Production Company Plains Marketing, L.P. Platts Gas Daily Platts, a McGraw-Hill Company Plymouth Resources Inc. Pogo Producing Company Point Carbon Pollard Mitchell Porous Media Portland General Electric Company Portland Natural Gas Transmission System Poseidon Energy Group Post Oak Energy Capital PostRock Energy Corporation PPL EnergyPlus, LLC PPM Energy, Inc. PPS, Inc. Prebon Energy Pretty Groovy PE PLLC Prism Gas Systems I, LP Prism Gas Systems, Inc. Prism Gas Systems, LP ProEnergy Group ProEnergy Midstream, LLC ProEnergy Partners, LP Professional Alternatives - Energy Group Progas, Inc. Progress Energy Carolinas, Inc. ProLiance Energy, LLC ProSidian Consulting, LLC Provident Royalties, LLC Prudential Financial PSEG Energy Resources & Trade LLC PSEG Energy Resources & Trading, LLC PSI Midstream Puffer Sweiven LP Purvin & Gertz, Inc. PVR Midstream LLC Pyramid GOM Inc Quantum Energy Partners Quantum Resources Management, LLC Quest Midstream Partners, L.P. Questar Pipeline Company Quicksilver Gas Resources Quorum Business Solutions, Inc. R. J. Ross Company - Executive Search Rafferty Energy Group Rainbow Investments / Brazos Resources RAM Energy, Inc. Randall F. Bevis Range Resources Corporation RB Consulting RBC Capital Markets Redwood Energy Reese Energy Consulting Regency Energy Partners Regency Gas Services Reliance Holding USA, Inc Reliant Energy Renaissance Trading Ltd. RenRe Energy Advisors, Ltd. Repsol Energy North America Republic Natural Gas LLC RETIRED Reuters America Inc. Revelation Energy Resources, LLC Rextag Strategies Rice University Richard, Wayne & Roberts Richardson Energy Marketing, Ltd. Rimkus Consulting Group, Inc. Risk Management Consulting, LLC RK Resources, LLC RLR Resources Robert Half RobustEnergy - Texas CHP Initiative Rockwood Energy Search LLC Rome Corporation Ronald L. Ennis - Attorney at Law Rosetta Resources, Inc. Ryder Transportation Services S&B Infrastructure Private, Ltd. Sabine Hub Services Sabine Storage & Operations, Inc. Sain Engineering Associates, Inc. Samsung Oil & Gas USA Corporation San Diego Gas & Electric Company SandRidge Energy, Inc. Sapient Corporation Saulsbury Industries SBM Offshore SCANA Services, Inc. Scotia Capital SEC Energy Products & Services, LP SEI Energy, LLC Semarus Field Services SemGroup LP Seminole Energy Services, LLC Sempra Energy Trading Corporation Sempra Pipelines and Storage Sendero Capital Partners Sequent Energy Management LP SGR Holdings, LLC Shell Energy North America Shell Exploration & Production Company Shell Gas Transmission, LLC Shell Trading - Coral Energy Shell Trading Gas & Power Company Sheridan Production Company, LLC Shoreline Gas, LLC Shoreline Gas/Bayside Energy Corp. Sid Richardson Energy Services Company Sides & Associates Siemens Corporation SiEnergy Sirius Solutions SK E&P COMPANY Skipping Stone, Inc. Skyline Marketing Services, Inc. Smartbridge LLC Snake Hill Energy Resources, Inc. Societe Generale Socorro Energy Services, LLC Software Experts, Inc SolArc, Inc. Solutia Inc. Sonangol USA Company Sonoma Resources Soteica Ideas & Technology Sotex Fuels, LLC South Jersey Gas Company South Jersey Resources Group, LLC Southcross Energy LLC Southern California Edison Southern California Gas Company Southern Natural Gas Company Southern Pines Energy Center Southern Star Central Gas Pipeline, Inc. Southern Union Gas Energy Ltd. Southern Union Gas Services Southwest Energy, L.P. Southwest Gas Corporation Southwest Securities Southwestern Energy Company Southwestern Energy Services Company Southwestern Midstream Company Southwestern Midstream Services Company Spark Energy Gas, LP Spark Energy, L.P. Spectra Energy Spectrum-Prime Solutions LP Spitfire Advisors SPL, Inc. Stalker Energy L.P. Stand Energy Corporation Standard Explorer, LLC. Stellar Oilfield Rentals Steward Prescott, LLC Stone Bond Technologies Stone Energy Corporation Strategic Catalyst Strategically Justified Business, LLC Strike Construction LLC Strong, Pipkin, Bissell & Ledyard LLP Subsurface Technology, Inc. SUG Energy, LLC Summa Technology Group, Inc. Sungard Consulting Services SunGard Energy & Commodities SunGard Energy Systems Sunoco, Inc. SunTrends Midstream Enterprises Corporation Superior Natural Gas Corporation Superior Pipeline Company Surveying & Mapping, Inc. SWCA Environmental Consultants Swift Energy Operating, LLC SWRB T D Williamson T H Hill Associates, Inc. Tammany Oil & Gas Tana Exploration Company LLC Targa Resources, Inc. Tarpon Gas Storage, L.P. Tauber Oil Company TCT Data Teague Nall and Perkins, Inc. TEAK Midstream, LLC Temple-Inland Tenaska Capital Management Tenaska Marketing Ventures Tenaska Power Services Co. Tennessee Gas Pipeline Tennessee Valley Authority TEPSCO Terra Industries, Inc. Terra Midstream Terrell Consulting Tesoro Refining & Marketing Company Texakoma Exploration & Production LLC Texas A&M University Texas Energy Management Texas Gas Service Texas Independent Energy, LP Texas Shale Gas Resources LLC Texican Horizon Energy Marketing LLC Texican Industrial Energy Marketing Texican Natural Gas Company Texla Energy Management, Inc. Texon LP TexStar Midstream Services, LP TFS Energy TGG Pipeline, Ltd. TGGT Holdings, LLC TGGT Midstream The Bank of Nova Scotia The Certex Company, Inc. The Cruthirds Report The Dow Corporation The Energy Authority The Gas Price Report The PFM Group The Schork Report The Shelton Law Firm The Structure Group The Triton Investment Group Thermal Energy Corporation Thigpen Energy Services, LLC Thomson Reuters Tiger Eye Resources Tiger Natural Gas, Inc Tippens Oil Investments LLC Torch Energy, Inc. Toromont Energy Systems Total Exploration & Production USA, Inc. Total Gas & Power New Ventures USA Inc. Total Gas & Power North America, Inc. TPF Gas Services Trade Fair Group, Inc. TradeCapture, Inc Trading Technologies, Inc. Trafigura AG Trammo Petroleum Inc. - Natural Gas Division TransCanada TransCanada - U.S. Pipeline Central TransCanada PipeLines, Ltd. Transcontinental Gas Pipe Line TransOcean Transparent Energy Services, Inc. TransTex Gas Services, LP Transwestern Pipeline Company Trebor Energy Resources, Inc. Tremont House Energy TriCentrol LLC TriNova Energy Services, Inc. Triple Point Technology, Inc. Tristar Producer Services Tristate Midstream LP Tristream Energy TRL Consulting LLC Trumarx Data Partners, Inc. Tulane University Twin Eagle Resource Management Tylex, Inc. U.S. Energy Services, Inc. UBS Energy LLC UBS Institutional Consulting UBS Investment Bank Ultra Petroleum UNIMARK LLC United Energy Trading LLC Universal Ensco, Inc. UniversalPegasus International University of Houston Upstream Energy Services, L. P. US Gas/Search US Infrastructure USI Southwest Utilities Employees Credit Union ValArco Valencia Valerus Compression Services, LP Vector Pipeline Vectren Source Vega Energy Ventyx / Global Energy Decisions Veriforce Vernon E. Faulconer Inc. Virginia Power Energy Marketing Vitol Inc. Volunteer Energy Services, Inc. Voyager Midstream W&T Offshore Inc. Wagner & Brown, Ltd. Wartsila North America, Inc. Washington Gas Light Co Waterfield Energy Way Service Ltd. Wealth Creation Advisors, Inc. Weis Communications WellPoint Systems Inc. Wells Fargo Bank, NA West Texas Gas, Inc. Westar Energy, Inc. Western Oil & Gas Development Westerra Development Company Wild Well Control Wiliams Gas Marketing Williams Williams Energy Services Williams Field Services Williams Gas Pipeline Williams Gas Pipeline - Transco Williams Midstream Williston Basin Interstate Pipeline Wilson & Associates, LLC Wilson Process Consultants, Inc. Wilson Supply Wolfe Energy Services, LLC Wood Mackenzie, Inc. Woodlands Solutions, LLC Woodward Development Worldwide Energy Services, Inc. WorleyParsons Group, Inc WPX Energy Marketing, LLC Xcel Energy Xcellat Consulting XTO Energy, Inc. Yuma Exploration & Production ZaZa Energy LLC ZE PowerGroup Inc. Zephyr Gas Services LLC Ziff Energy Group, Ltd. During your visit to NESANET.ORG, if you should experience any difficulties or have comments and suggestions, please click here. Copyright © 1999-2012 National Energy Services Association. All rights reserved.