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 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

Bluefield Gas Company

Brainard Gas

Cascade Natural Gas Corporation

CenterPoint Energy

Central Florida Gas Co., Div. Chesapeake Utilities

Central Hudson Gas & Electric Corporation

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 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 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.

Consumers Energy Company

Corning Natural Gas Corporation

CoServ Gas

CPS Energy

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 Gulf States Louisiana, LLC

Entergy New Orleans, Inc.

Eversource Energy

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.

Greater Minnesota Gas, Inc.

Greenville Utilities

Greenwood Commissioners of Public Works


Henderson Municipal Gas

Holyoke Gas & Electric


Iberdrola USA Networks

Illinois Gas Company

Intermountain Gas Company

Interstate Power and Light Company

Kansas Gas Service

KNG Energy

Knoxville Utilities Board

Laclede Gas Company

Las Cruces Utilities

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.

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

Missouri Gas Energy

Mobile Gas Service Corp.

Montana-Dakota Utilities Co.

Mountaineer Gas Company

Mt. Carmel Public Utility Company

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

Niobrara NatGas LLC

NIPSCO - A NiSource Company

NiSource Inc.

North Shore Gas

Northeast Ohio Natural Gas

Northern Utilities, Inc.

NorthWestern Energy

Norwich Public Utilities

NV Energy

NW Natural

Oak Ridge Utility District

Ohio Valley Gas Corporation

Okaloosa Gas District

Oklahoma Natural Gas

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

Pepco Holdings, Inc.

Philadelphia Gas Works

Piedmont Natural Gas Company, Inc.

PPL Corporation

PSNC Energy, A SCANA Company

Public Service Electric and Gas Company

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 Company

Sandpiper Energy

SCANA Corporation

SEMCO Energy 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

TECO Energy, Inc.

TECO Peoples Gas

Terrebonne Parish Consolidated Government

Texas Gas Service

The Empire District Electric Company

The Energy Cooperative

The Laclede Group, Inc.

UGI Central Penn Gas, Inc.

UGI Corporation

UGI Penn Natural Gas, Inc.

UGI Utilities, Inc.

Union Oil & Gas Inc.

Unitil Corp.

UNS Energy Corp.

UNS Energy Services

UNS Gas, Inc.

Valley Energy, Inc.

Vectren Corporation

Vermont Gas Systems, Inc.

Virginia Natural Gas

Washington Gas Light Company

We Energies

WEC Energy Group

Westfield Gas & Electric Department

WGL Holdings, Inc.

Wisconsin Power & Light Company

Wisconsin Public Service

Wyoming Gas Company

Xcel Energy Inc.

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.

ANR Pipeline Company


ATCO Group

Carolina Gas Transmission

Centra Gas Manitoba Inc.

Cheniere Energy, Inc.

Colorado Interstate Gas Company

Columbia Pipeline Group

Distrigas of Massachusetts LLC

Dominion Transmission

Dow Pipeline Company

Eastern Shore Natural Gas Company

El Paso Pipeline Partners

Enbridge Gas Distribution Inc.

Enbridge Inc.

Enbridge St. Lawrence Gas

EQT Corp.

EQT Midstream

Equitrans L.P.

Gaz Metro


Great Plains Natural Gas Co.


Kern River Gas Transmission Co.

Kinder Morgan Inc.

Manitoba Hydro

National Fuel Gas Supply Corporation

Natural Gas Pipeline Company of America

Northern Natural Gas Company

NW Natural Gas Storage

PAA Natural Gas Storage, L.P.

Questar Pipeline Company

Repsol Services Company

Sacramento Municipal Utility District

Seadrift Pipeline Corporation

Southern Natural Gas Company

Southern Star Central Gas Pipeline, Inc.

Spectra Energy Corp.

Sprague Operating Resources, LLC

Tenaska Marketing Ventures

Tennessee Gas Pipeline

TransCanada Corporation

Union Gas Limited

WBI Energy, Inc.

Williams Companies, Inc.

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

Gas Natural SDG S.A.

Osaka Gas Company, Ltd.


Toho Gas Co., Ltd.

Tokyo Gas America, Ltd.

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International Affiliate

Organizations outside of North America.

American Israeli Gas Corporation Ltd.


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.

3M Electrical Markets Division

A.O. Smith Water Products Company

A.Y. McDonald Manufacturing Company

AAC Utility Partners

Accela Right of Way Management



Advance Engineering Corporation


AEGIS Insurance Services, Inc.

Aether DBS

Agave Wire LTD

Aim Energy Group Inc.

Air Liquide Technical Services LLC

Alliance Consulting Group

Alstom Grid, Inc.

American Innotek Inc.

American Innovations

American Stock Transfer & Trust

APEX Measurement & Controls LLC

Aquilon Energy Services, Inc.

ARB, Inc.


Argus Media

Arkema Inc.



Badger Daylighting Corp

Badger Meter Inc.

Baker Tilly Virchow Krause, LLP

Balon Corporation

Bank of America Merrill Lynch

Barr Engineering

Bascom-Turner Instruments

Basic Systems, Inc.

Bayco Products Inc.


Berntsen International, Inc.

Bevolo Gas & Electric Lights

Big Elk Energy Systems, LLC

Bingham & Taylor

Black & Veatch Corporation

Black & Veatch Corporation

Black & Veatch Corporation

Black & Veatch Corporation

Black & Veatch Corporation

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.

CartoPac International, Inc.


Celerity Consulting Group

CH-IV International

CH2M Hill

CHA Consulting, Inc.

Charter Plastics, Inc.

Chevron Phillips Chemical Co.

CHI Engineering Services, Inc.

Chicago Fittings Corporation

Cianbro Corporation

Citi Investment Research


Clock Spring Company, L.P.

CNA, Inc.

Colorado Engineering Experiment Station Inc.

Concentric Energy Advisors Inc.


Consolidated Analytical Systems, Inc.

Continental Industries

Continuum Advisory Group

Coorstek Igniter Products

Copperleaf Technologies

Cozen O'Connor

CriticalControl Energy Services Inc.

CS Energy Ventures

Cullen and Dykman LLP

Cyera Strategies LLC

Davies Consulting

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

Edward Jones

Elecsys Corporation

ELM Locating & Utility Services

Elster Gas North America

Elster Instromet, Inc.

Elster Perfection

Emerson Process Management

Emerson Process Management - Daniel Measurement & Control

Emerson Process Management - Remote Automation Solutions

EN Engineering

Endress+Hauser Flowtec AG Division USA

Energy Control Systems, Inc.

Energy Economics Inc.

ENERGY worldnet, Inc.

Enovation Partners

Entech Engineering, Inc.

Enterprise Products Partners, L.P.

Equistar Chemicals, LP

Ernst & Young LLP

Esri, Inc.

Evercore Partners

Evonik Degussa Corporation

exp Energy Services Inc.

Exponent, Inc.

Exponent, Inc.

Faneuil, Inc.

Fitch Ratings

Flare Construction, Inc.

Flow-Cal, Inc.

Flowserve - Nordstrom & Valbart Valves

Foley & Lardner LLP

Formosa Plastics USA

Foster Associates Consultants, LLC

G2 Integrated Solutions

Gannett Fleming Valuation and Rate Consultants, LLC

GAS Analytical Services

Gas Measurement Instruments Ltd.

Gas Operations Innovation Alliance

Gas Transmission Systems, Inc.


GE / Dresser

GE Digital Solutions

GE Energy - Dresser

GE Oil & Gas - Dresser Meters and Instruments

GEI Consultants, Inc.

Georg Fischer Central Plastics, LLC

Geostock US LLC

GISbiz, Inc.

GP Strategies

Grid One Solutions Inc.

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


GTG Engineering Canada Inc.

GTI - Gas Technology Institute

Hallen Construction Company

HammerHead Trenchless Equipment

Hatch Mott MacDonald

HBK Engineering, LLC

Heath Consultants Incorporated

Heidrick & Struggles

Henkels & McCoy, Inc.

HeplerBroom, LLC

Hermann Sewerin GmbH

Hoffman Southwest Corp., DBA Professional Pipe Services (PRO-PIPE)

Holland Engineering, Inc.

Honeywell Process Solutions

Houlihan Lokey

Hydromax USA


Industrial Training Services, Inc.

INEOS Olefins & Polymers USA


Ingenia Polymers Group

Inner-Tite Corp.

IntelliChoice Energy

InterCon Construction, Inc.

International/Interprovincial Corrosion Control



Itron, Inc.

Itron, Inc.

Itron, Inc.

J.F. Kiely Service Company


Jacobs Consultancy Inc.

Jameson LLC

JANA Corporation

JMS Natural Gas Consulting LLC

John P. Woodyard, PE

Jomar Valve

JW's Pipeline Integrity Services, LLC

Kazmarek Mowrey Cloud Laseter LLP

Kegler Brown Hill & Ritter LPA

Kelley Instrument Machine, Inc.

Kerotest Manufacturing Corp.

Kiewit Energy

King Innovation

Kleinfelder Inc.

Kleinfelder, Inc.



KS Energy Services

Landis + Gyr



Legacy Measurement Solutions

Leobersdorfer Maschinen Fabrik GMBH

LI-COR Biosciences

Liberty Coating Company LLC

Liberty Sales & Distribution, LLC

Life Cycle Engineering

Linde Engineering North America Inc.

Luvian Partners, Inc.

Luxfer-GTM Technologies, LLC

LW Survey Company

Lytx, Inc.

M. T. Deason Company, Inc.

Magnolia River

MAMAC Systems

Manufacturas Marachem

MasTec North America, Inc.

Maxitrol Company

MBW Incorporated

McCarter & English, LLP

McJunkin Red Man Corporation

McKinsey & Company, Inc.

MCR Performance Solutions, LLC


Mears Group, Inc.

Mercer Technical Services


Michael Baker International

Michell Instruments, Inc.

Michels Corporation

Micro Motion, a Business Unit of Emerson

Miles Printing Corporation

Miller Consulting Services

Minnich Manufacturing

Morgan Stanley


Mueller Company - Gas Products Division

Mulcare Pipeline Solutions, Inc.

Munters Corporation

National Oilwell Varco

Neptune Research Inc.

Network Infrastructure, Inc.

New Century Software, Inc.

North American Society for Trenchless Technology

North Coast Seal

Northstar Industries, LLC

Norton McMurray Manufacturing Company

NPL Construction Co.

NSF International

Oliver Wyman

OMark Consultants Inc.

Omega Flex

Omni Flow Computers, Inc.


Oracle Corporation

Oracle Corporation

Oracle Corporation

Oracle Corporation

Oracle Corporation

Panton Inc.

PB Energy Storage Services, Inc.

Performance Pipe, Div. of Chevron Phillips Chemical Company LP

Phillips Lytle LLP

PI Confluence, Inc.

Picarro Inc.

PipeFuser, Inc.

Pipeline Equipment Resource Company

Pipeline Plastics, LLC

Pivotal Home Solutions

Plauche' Maselli Parkerson

Polyvalve, LLC

Posillico Civil Inc.

Post & Schell, P.C.

PowerPlan, Inc.

Precision Pipeline Solutions, LLC


PricewaterhouseCoopers LLP

Pro-Line Safety Products Co.

ProAct Services Corporation

QPS Engineering, LLC

Quorum Business Solutions, Inc.

R.W. Lyall & Company, Inc.

RAMTeCH Corporation

RBC Resources LLC

RCP Inc.

Regions Securities, LLC

Regulated Capital Consultants, LLC

Robert H. Peterson Company

Rocky Mountain Line Systems, Inc.

Romet Limited

Rooney Rippie & Ratnaswamy LLP

Rothfuss Engineering Company

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

Sanborn, Head & Associates, Inc.

Schneider Electric

Schneider Electric

ScottMadden, Inc.


Sensit Technologies


Shelter Works

Sick Oil and Gas

Sidock Group, Inc.

Sierra Instruments, Inc.

SiteWise Corporation

Smart Pipe Company, Inc.

Snelson Companies, Inc.

Southern California Valve

Southern Cross

Southern Manufacturing Group, Inc.

SouthWest Pipe Services, Inc.

Southwest Research Institute

SpectraSensors, Inc.

Standby Systems, Inc.

Steptoe & Johnson PLLC

Stevens & Lee

Structural Integrity Associates, Inc.

SunGard Consulting Services

Surveying and Mapping, LLC

Sussex Economic Advisors, LLC

T.D. Williamson, Inc.

Teel Plastics Inc.

Terra Tape, Div. of Reef Industries

Thermo Fisher Scientific

Timberline Tool

Timewave Capital

TMCo, Inc.

Trachte, Inc.

TrailBlazer Consulting LLC

Trenton Corporation

Trico Surveying and Mapping Inc.

TT Technologies, Inc.

Tubis LLC

UBE America, Inc.

Ubisense Inc.

ULC Robotics

Ultrafryer Systems, Inc.

Underground Construction Co., Inc.

United Rentals Trench Safety

UniversalPegasus International

Uponor Infra Ltd



Utilicor Technologies Inc.

UtiliQuest LLC

Utilities International, Inc.

Utility Line Services

Utility Supply Inc.

Vactor Manufacturing

Valtronics and Mustang Sampling

Van Ness Feldman LLP

Vavco, LLC

Vega Energy Partners Ltd.



ViaSat, Inc.

Victaulic Company

WaveTrue Inc.

Western Utility, LLC

WFMS, Inc.

Willbros Engineers (U.S.) LLC

WL Plastics Corp.

Wood Group Mustang, Inc.

Woodard & Curran

Wright & Talisman, P.C.

YZ Systems, Inc.

Zanfel Laboratories, Inc.

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Association 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

Council for Oil & Gas Industry

Danish Gas Technical Association

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

Energy Supply Association of Australia Limited

French Gas Association

Institution of Gas Engineers & Managers

International Gas Union

Natural Gas Society

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 Japan Gas Association

The Korea Gas Union

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