Our Members


Our Members

Member Addresses and Places of Business

Links to Member Company Web Sites

Full | Limited | International | International Affiliate | Associate | Association Honorary | Foreign Honorary


Local natural gas distribution companies and their corporate parents.

AGL Resources


Algonquin Power & Utilities Corp.


Alliant Energy

AltaGas Ltd.

AltaGas Utilities Inc.

Ameren Corporation

Ameren Illinois

Ameren Missouri

Appalachian Natural Gas Distribution

Arkansas Oklahoma Gas Corporation

Atlanta Gas Light

Atmos Energy Corporation

Avista Corporation

Avista Utilities

Bangor Gas Company

Bath Electric, Gas & Water Systems

Berkshire Gas Company

Berkshire Hathaway Energy

BGE, An Exelon Company

Black Hills Corporation

Black Hills Energy

Black Hills Power, Inc.

Bluefield Gas Company

Brainard Gas

Cascade Natural Gas Corporation

CenterPoint Energy

Central Florida Gas Co., Div. Chesapeake Utilities

Central Hudson Gas & Electric Corporation

Central Maine Power Co.

CH Energy Group, Inc., A Fortis Co.

Chattanooga Gas

Chesapeake Utilities Corp., Delaware & Maryland Divisions

Chesapeake Utilities Corporation

Cheyenne Light, Fuel & Power Company

Citizens Energy Group

Citizens Gas Fuel Company

City Gas Company

City of Charlottesville, Public Utilities Division

City of Corpus Christi

City of Las Cruces

City of Richmond, Department of Public Utilities

City of Rocky Mount

City of Safford Utilities

Clarke-Mobile Counties Gas District

Clearwater Gas System

CMS Energy Corporation

Colorado Natural Gas, Inc.

Colorado Springs Utilities

Columbia Energy Group, A NiSource Company

Columbia Gas of Kentucky

Columbia Gas of Maryland

Columbia Gas of Massachusetts

Columbia Gas of Ohio

Columbia Gas of Pennsylvania

Columbia Gas of Virginia

Connecticut Natural Gas Corporation

Consolidated Edison Company of New York, Inc.

Consolidated Edison, Inc.

Constellation, An Exelon Company

Consumers Energy Company

Continental Energy Systems LLC

Corning Natural Gas Corporation

CoServ Gas, Ltd.

CPS Energy

Cut Bank Gas Company

Delmarva Power

Delta Natural Gas Company, Inc.

Dominion East Ohio

Dominion Energy

Dominion Hope

DTE Energy

DTE Gas Company

Duke Energy Corporation

Easton Utilities

Elizabethtown Gas

Elkton Gas




ENSTAR Natural Gas Company

Entergy Corporation

Entergy Corporation

Entergy Gulf States Louisiana, LLC

Entergy New Orleans, Inc.

Entergy Services, Inc.

Equitable Gas Co.

Exelon Business Services Co.

Exelon Corporation

Fairbanks Natural Gas

Fitchburg Gas and Electric Light Company

Florida City Gas

Florida Public Utilities Company

Fort Pierce Utilities Authority

Fortis Inc.

FortisBC Energy Inc.

Frontier Natural Gas

Gainesville Regional Utilities

Gas Natural, Inc.

Greenville Utilities

Greenwood Commissioners of Public Works


Henderson Municipal Gas

Holyoke Gas & Electric

Iberdrola USA

Iberdrola USA Management Corporation

Illinois Gas Company

Integrys Energy Group

Integrys Gas Group

Intermountain Gas Company

Interstate Power and Light Company

Kansas Gas Service

KNG Energy

Knoxville Utilities Board

Kokomo Gas & Fuel Company

Laclede Gas Company

Leatherstocking Gas Company LLC

LG&E-KU, PPL Companies

Liberty Utilities

Lumberport-Shinnston Gas Company, Inc.

Madison Gas and Electric Company

Maine Natural Gas

MDU Resources Group, Inc.

MDU Utilities Group

Memphis Light, Gas & Water Division

Metropolitan Utilities District

MGE Energy, Inc.

Michigan Gas Utilities

MidAmerican Energy Company

Middle Tennessee Natural Gas Utility District

Minnesota Energy Resources

Mississippi Valley Gas Company

Missouri Gas Energy

Mobile Gas Service Corp.

Montana-Dakota Utilities Co.

Mountaineer Gas Company

Mt. Carmel Public Utility Company

Nashville Gas, Div. of Piedmont Natural Gas Co.

National Fuel Gas Company

National Fuel Gas Distribution Corporation

National Grid

Natural Gas Processing Co.

New Jersey Natural Gas Company

New Jersey Resources

New Mexico Gas Company

New York State Electric & Gas Corporation

Nicor Gas

Nicor Inc.

Niobrara NatGas LLC

NIPSCO - A NiSource Company

NiSource Gas Distribution

NiSource Inc.

NJR Service Corporation

North Shore Gas

Northeast Ohio Natural Gas

Northeast Utilities

Northern Indiana Fuel & Light Company

Northern New England Energy Corporation

Northern Utilities, Inc.

NorthWestern Energy

NSTAR Electric

NV Energy

NW Natural

Oak Ridge Utility District

Ohio Valley Gas Corporation

Okaloosa Gas District

Oklahoma Natural Gas Co.

ONE Gas, Inc.

Orange & Rockland Utilities, Inc.

Orwell Natural Gas Company

Pacific Gas and Electric Company


PECO Energy, An Exelon Company

Peoples Gas

Peoples Natural Gas

Peoples TWP

Pepco Holdings, Inc.

PG&E Corporation

Philadelphia Gas Works

Piedmont Natural Gas Company, Inc.

PPL Corporation

PSEG Energy Resources and Trade

PSNC Energy, A SCANA Company

Public Service Electric and Gas Company

Public Service Enterprise Group, Inc.

Puget Sound Energy

Questar Corporation

Questar Gas Company

RGC Resources, Inc.

Richmond Utilities Board

Roanoke Gas Company

Rochester Gas & Electric Corporation

San Diego Gas & Electric Co./Southern California Gas Co.

San Diego Gas & Electric Company

Sandpiper Energy

SCANA Corporation

SEMCO Energy Gas Company

Sempra Energy

Sempra U.S. Gas & Power

Shenandoah Gas Company

SourceGas Arkansas

SourceGas LLC

South Carolina Electric & Gas Company

South Jersey Gas Company

South Jersey Industries, Inc.

Southern California Gas Company

Southern Connecticut Gas Company

Southwest Gas Corporation

Southwestern Virginia Gas Company

Summit Natural Gas of Maine, Inc.

Summit Natural Gas of Missouri, Inc.

Summit Utilities, Inc.

Superior Water, Light and Power Company

Tampa Electric and Peoples Gas

TECO Energy, Inc.

TECO Peoples Gas

Terrebonne Parish Consolidated Government

Texas Gas Service

The Empire District Electric Company

The Empire District Gas Company

The Energy Cooperative

The Laclede Group, Inc.

UGI Central Penn Gas, Inc.

UGI Corporation

UGI Energy Services, Inc.

UGI Penn Natural Gas, Inc.

UGI Utilities, Inc.

UIL Holdings Corp.

Union Oil & Gas Inc.

UniSource Energy Services

United Illuminating Company

Unitil Corp.

UNS Energy Corp.

UNS Energy Services

UNS Gas, Inc.

Valley Energy, Inc.

Vectren Corporation

Vectren Energy Delivery

Vectren Utility Holdings Inc.

Vermont Gas Systems, Inc.

Virginia Natural Gas

Washington Gas Light Company

Washington Gas, Frederick Division

We Energies

Westfield Gas & Elec. Light Co.

WGL Holdings, Inc.

Wisconsin Energy Corporation

Wisconsin Power & Light Company

Wisconsin Public Service

Wyoming Gas Company

Xcel Energy Inc.

Yankee Gas

Zia Natural Gas Company

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U.S. natural gas pipelines; Canadian and Mexican natural gas utilities and pipelines; U.S., Canadian and Mexican natural gas marketers, brokers and gatherers.

AGL Resources Service Co.

Algonquin Gas Transmission Co.

ANR Pipeline Company

ATCO EnergySense


ATCO Group

ATCO Pipelines

Atmos Energy Holdings

Atmos Energy Marketing, LLC

Bay Gas Storage

Carolina Gas Transmission

Centra Gas Manitoba Inc.

Cheniere Energy, Inc.

Cheniere LNG, Inc.

Colorado Interstate Gas Company

Columbia Gas Transmission Corp.

Columbia Gulf Transmission Company

DCP Midstream

Distrigas of Massachusetts LLC

Dominion Transmission

Eastern Shore Natural Gas Company

El Paso Pipeline Partners

Enbridge Gas Distribution Inc.

Enbridge Inc.

Enbridge St. Lawrence Gas

EQT Corp.

Equitrans L.P.

Exelon Energy

Gaz Metro


Great Plains Natural Gas Co.

Guardian Pipeline, L.L.C.


Kentucky West Virginia Gas Company

Kern River Gas Transmission Co.

Kinder Morgan Energy Partners L.P.

Kinder Morgan Inc.

Manitoba Hydro

Midwestern Gas Transmission Company

National Fuel Gas Supply Corporation

National Fuel Resources, Inc.

Natural Gas Pipeline Company of America

NiSource Corporate Services

NiSource Gas Transmission and Storage

Northeast Utilities Service Company

Northern Natural Gas Company

Northwest Pipeline Corporation

NW Natural Gas Storage

PAA Natural Gas Storage, L.P.

Paiute Pipeline Company, NPL Construction Co.

Pepco Energy Services

PHI Service Company

Questar Pipeline Company

Repsol Services Company

Sacramento Municipal Utility District

Seadrift Pipeline Corporation

Sempra Pipelines and Storage, Inc.

Seneca Resources Corporation

South Jersey Energy Company

Southern Natural Gas Company

Southern Star Central Gas Pipeline, Inc.

Spectra Energy Corp

Spectra Energy Transmission

Sprague Operating Resources, LLC

TECO Gas Services

TECO Partners

Tenaska Marketing Ventures

Tennessee Gas Pipeline

TransCanada Corporation

Transcontinental Gas Pipe Line Corporation

Union Gas Limited

Viking Gas Transmission Company

Washington Gas Energy Services

WBI Energy, Inc.

Williams Companies, Inc.

Williams Gas Pipeline

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Organizations outside of North America eligible to participate in Operations Best Practices/Benchmarking Program and Selected Operating Section Committees.

American Israeli Gas Corporation Ltd.

Bord Gais Networks


Gas Natural SDG S.A.

Korea Gas Safety Corporation

Metrogas S.A.(Chile)

N.V. Nederlandse Gasunie

Osaka Gas Company, Ltd.


Toho Gas Co., Ltd.

Tokyo Gas America, Ltd.

Tokyo Gas Company, Ltd.

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International Affiliate

Organizations outside of North America.

American Israeli Gas Corporation Ltd.

Bord Gais Networks


Korea Gas Safety Corporation

Metrogas S.A.(Chile)

N.V. Nederlandse Gasunie

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Suppliers, consultants, members of the operating, financial, marketing and legal communities, and others providing services to the industry.

A.O. Smith Water Products Company

A.Y. McDonald Manufacturing Company

AAC Utility Partners







Advance Engineering Corporation

AEA Underground Inc.

AEGIS Insurance Services, Inc.


Air Liquide Technical Services LLC

Alliance Consulting Group

American Innovations

American Stock Transfer & Trust

APEX Measurement & Controls LLC

ARB, Inc.


Arkema Inc.

AUS Consultants, Inc.


Badger Daylighting

Badger Meter Inc.

Balon Corporation

Bank of America Merrill Lynch

Barr Engineering

Bascom-Turner Instruments

Basic Systems, Inc.

Bayco Products Inc.


Bevolo Gas & Electric Lights

BGL Asset Services, LLC

Bingham & Taylor

Bond Brothers, Inc.

Border States

BP Energy Company

BRAEMAR Engineering


Burns & McDonnell

C.R. Wall & Co. Inc.



Cameron Valves & Measurement

Campos EPC LLC

Canada Pipeline Accessories Company Ltd.

Canadian Utility Construction Corporation

Captra Capital

Celerity Consulting Group

CHA Consulting, Inc.

Charter Plastics, Inc.

Chevron Phillips Chemical Co.

CHI Engineering Services, Inc.

Chicago Fittings Corporation

CH-IV International

Christensen & Associates

Citi Investment Research

CNA, Inc.

Colorado Engineering Experiment Station Inc.

Concentric Energy Advisors Inc.


Consolidated Analytical Systems, Inc.

Continuum Advisory Group

Convergent Outsourcing, Inc.

Coorstek Igniter Products

Corrpro, an Ageion Company

Cozen O'Connor

CriticalControl Energy Services Inc.

Cullen and Dykman LLP

Cyera Strategies LLC

Deloitte LLP


Digital Control Incorporated

Doyle Hartman, Oil Operator

Dresser Becker Precision Equipment

Dresser Pressure Regulation Group

DRS Enterprises Inc.

DuPont Company


Dynamic Flow Computers, Inc.

Eagle Research Corporation

EarthRes Group, Inc.

ECI Utility Construction

Edward Jones

Elecsys Corporation

Elster Gas North America

Elster Instromet, Inc.

Elster Perfection

Emerson Process Management - Daniel Measurement & Control

Emerson Process Management - Fisher Regulators

Emerson Process Management - Remote Automation Solutions

EN Engineering

Encana Corporation

Endress+Hauser Flowtec AG Division USA

Energy Control Systems, Inc.

Energy Economics Inc.

Enovation Partners

Entech Engineering, Inc.

Envista Corporation

Equipment Controls Company

Equistar Chemicals, LP

Ernst & Young LLP

Esri, Inc.

Evercore Partners

Evonik Degussa Corporation

Exponent Inc.

Exponent, Inc.

Feeney Brothers Excavation, LLC

Fiorentini USA

Fitch Ratings

Flare Construction, Inc.

Flowserve - Nordstrom & Valbart Valves

Foley & Lardner LLP

Formosa Plastics USA

Foster Associates Inc.

G2 Partners LLC

Gannett Fleming Valuation and Rate Consultants, LLC

GAS Analytical Services

Gas Measurement Instruments Ltd.

Gas Operations Innovation Alliance

Gas Transmission Systems, Inc.

GasBreaker, Inc./UMAC, Inc.

GE / Dresser

GE Energy - Dresser

GE Measurement & Control

GE Oil & Gas - Dresser Meters and Instruments

GEI Consultants, Inc.

Georg Fischer Central Plastics, LLC

Geostock US LLC

GISbiz, Inc.

GL Noble Denton

GP Strategies

Greenwich Investment Management, Inc.

Grit Industries, Inc., parent of Cold Weather Technologies Inc.


GTI - Gas Technology Institute

GTM Technologies, LLC

Hallen Construction Company

HammerHead Trenchless Equipment

Hatch Mott MacDonald

HBK Engineering, LLC

Heath Consultants Incorporated

Heidrick & Struggles

Henkels & McCoy Inc.

Hermann Sewerin GmbH

HJI Group

Holland Engineering, Inc.

Honeywell Process Solutions


Industrial Training Services, Inc.

INEOS Olefins & Polymers USA

Ingenia Polymers Group

Inner-Tite Corp.

IntelliChoice Energy

InterCon Construction, Inc.

International/Interprovincial Corrosion Control



irth Solutions

Itron, Inc.

J.F. Kiely Service Company

Jacobs Consultancy Inc.

Jameson LLC

Jana Laboratories Inc.

JMS Natural Gas Consulting LLC

Kazmarek Geiger & Laseter LLP

Kegler Brown Hill & Ritter LPA

Kerotest Manufacturing Corp.

King Innovation

Kleinfelder, Inc.



KS Energy Services



Legacy Measurement Solutions

Liberty Sales & Distribution, LLC

Linde Engineering North America Inc.

Lloyds Bank Corporate Markets

LW Survey Company

M. T. Deason Company, Inc.

Magnolia River

Manufacturas Marachem

MasTec North America, Inc.

Master Brands

Mathey Dearman, Inc.

Maxitrol Company

McElroy Manufacturing, Inc.

McJunkin Red Man Corporation

McKinsey & Company, Inc.

MCR Performance Solutions, LLC


Mears Group, Inc.


Michell Instruments, Inc.

Michels Corporation

Micro Motion, Inc.

Miller Consulting Services

Minnich Manufacturing

Morgan Stanley

Mulcare Pipeline Solutions, Inc.

Munters Corporation


Neptune Research Inc.

Network Infrastructure, Inc.

New Century Software, Inc.

Nicor National

North Coast Seal

Northstar Industries, LLC

Norton McMurray Manufacturing Company

NPL Construction Co.

NSF International

Oliver Wyman

OMark Consultants Inc.

Omni Flow Computers, Inc.

Opvantek Inc.

Oracle Corporation

Oracle Corporation

Oracle Corporation

Oracle Corporation

Oracle Corporation

ParenteBeard LLC

PB Energy Storage Services, Inc.

Performance Pipe, Div. of Chevron Phillips Chemical Company LP

Phillips Lytle LLP

PI Confluence, Inc.

Picarro Inc.

Plauche' Maselli Parkerson

Posillico Civil Inc.

Post & Schell, P.C.

PowerPlan Inc.

Precision Pipeline Solutions, LLC


PricewaterhouseCoopers LLP

Pro-Line Safety Products Co.

PSC Industrial Outsourcing, L.P.

QPS Engineering, LLC

Quorum Business Solutions, Inc.

R&M Energy Systems

R.W. Lyall & Company, Inc.

Rabine Group

RCP Inc.

Regions Bank

Regulated Capital Consultants, LLC

Resource Action Programs


Robert H. Peterson Company

Romet Limited

Rooney Rippie & Ratnaswamy LLP

Rothfuss Engineering Company

S.I.T. Controls U.S.A., Inc.

Sanborn, Head & Associates, Inc.

ScottMadden, Inc.


Sensit Technologies


Shell Canada

Sick Oil and Gas

Sidock Group, Inc.

SiteWise Corporation


Smart Pipe Company, Inc.

Snelson Companies, Inc.

Southern Cross Corp.

Southern Manufacturing Group, Inc.

Southwest Research Institute

Southwestern Energy Company

SpectraSensors, Inc.

Standby Systems, Inc.

Steptoe & Johnson PLLC

Stevens & Lee

Structural Integrity Associates, Inc.

T.D. Williamson, Inc.

Teel Plastics Inc.

Terra Tape, Div. of Reef Industries

The Jomar Group

The Mosaic Company

Thermo Fisher Scientific

TMCo, Inc.

TrailBlazer Consulting LLC

Trico Surveying and Mapping Inc.

Trimble Energy Distribution Utilities

TT Technologies, Inc.

Tubis LLC

UBE America, Inc.

Ubisense Inc.

ULC Robotics

Ultrafryer Systems, Inc.

Underground Construction Co., Inc.

Universal Acoustic & Emission Technologies

UniversalPegasus International

Uponor Infra Ltd


URS Corporation


Utilicor Technologies Inc.

UtiliQuest LLC

Utilities International, Inc.

Valtronics and Mustang Sampling

Van Ness Feldman LLP

Vega Energy Partners Ltd.


ViaSat, Inc.

Victaulic Company

WaveTrue Inc.

Weston Solutions, Inc.

WFMS, Inc.

WL Plastics Corp.

Wood Group Mustang, Inc.

Woodard & Curran

Wright & Talisman, P.C.

YZ Systems, Inc.

Zanfel Laboratories, Inc.

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Associate Honorary

Air-Conditioning, Heating and Refrigeration Institute

Alabama Natural Gas Association

American Public Gas Association

Arkansas Gas Association

Canadian Gas Association

Energy Association of Pennsylvania

Florida Natural Gas Association

Illinois Energy Association

Indiana Energy Association, Inc.

Interstate Natural Gas Association of America

Iowa Natural Gas Association

Kentucky Gas Association

Michigan Electric & Gas Association

Midwest ENERGY Association

Missouri Energy Development Association

National Propane Gas Association

New Jersey Utilities Association

New Mexico Oil & Gas Association

Northeast Gas Association

Northwest Gas Association

Ohio Gas Association

Ontario Energy Association

Southern Gas Association

Tennessee Gas Association

Texas Gas Association

West Virginia Oil and Natural Gas Association

Western Energy Institute

Wisconsin Utilities Association

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Foreign Honorary

Argentine Petroleum & Gas Institute

Asociacion Mexicana De Gas Natural A.C.

Austrian Association for Gas & Water Industries

Chemical Industry Federation of Finland

Council for Oil & Gas Industry

Danish Gas Technical Association

DVGW, The German Technical and Scientific Association on Gas and Water

Energy Networks Association

Energy Supply Association of Australia Limited

French Gas Association

Institution of Gas Engineers & Managers

International Gas Union

Japan Gas Association

Petroleum Institute of Pakistan

Polish Assoc. of Sanitary Engineers & Technicians

Royal Belgium Gas Association

Royal Dutch Gas Association - KVGN

Swedish Gas Association

Swiss Gas and Water Industry Association

The Korea Gas Union

Union of Chemists in Bulgaria

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