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.

Algonquin Power & Utilities Corp.


Alliant Energy Corporation

AltaGas Utilities Inc.

Ameren Corporation

Ameren Illinois

Ameren Missouri

Appalachian Natural Gas Distribution

Arkansas Oklahoma Gas Corporation

Aspire Energy

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

Chesapeake Utilities Corp., Delaware & Maryland Divisions

Chesapeake Utilities Corporation

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 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, An Exelon Company

Delta Natural Gas Company, Inc.

Dominion Energy Ohio

Dominion Energy Utah

Dominion Energy West Virginia

Dominion Energy, Inc.

DTE Energy

DTE Gas Company

Duke Energy Corporation

Emera Inc.

Energy West Montana

Energy West, Inc.

ENSTAR Natural Gas Company

Entergy Louisiana, LLC

Entergy New Orleans, Inc.

Entergy Services, Inc.

Eversource Energy

Exelon Corporation

Fairbanks Natural Gas

Fitchburg Gas and Electric Light Company

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

Illinois Gas Company

Intermountain Gas Company

Interstate Power and Light Company

Kansas Gas Service

KNG Energy

Knoxville Utilities Board

Las Cruces Utilities

Leatherstocking Gas Company LLC

LG&E-KU, PPL Companies

Liberty Utilities Company

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

Montana-Dakota Utilities Co.

Mountaineer Gas Company

Mt. Carmel Public Utility 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


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, An Exelon Company

Peoples Gas

Peoples Gas

Peoples Natural Gas

Pepco, An Exelon Company

Philadelphia Gas Works

Piedmont Natural Gas Company, Inc.

PPL Corporation

PSNC Energy, A SCANA Company

Public Service Electric and Gas Company

Puget Sound Energy

RGC Resources, Inc.

Richmond Utilities Board

Roanoke Gas Company

Rochester Gas & Electric Corporation

Rocky Mount Public Utilities

San Diego Gas & Electric Company

Sandpiper Energy

SCANA Corporation

SEMCO Energy Gas Company

South Carolina Electric & Gas Company

South Jersey Gas Company

South Jersey Industries, Inc.

Southern California Gas Company

Southern Company

Southern Company Gas

Southern Connecticut Gas Company

Southwest Gas Corporation

Southwest Gas Holdings, Inc.

Southwestern Virginia Gas Company

Spire Inc.

Summit Natural Gas of Maine, Inc.

Summit Natural Gas of Missouri, Inc.

Summit Utilities, Inc.

Superior Water, Light and Power Company

TECO Energy, Inc.

Terrebonne Parish Consolidated Government

Texas Gas Service

The Energy Cooperative

UGI Corporation

UGI Utilities, Inc.

Union Oil & Gas Inc.

Unitil Corp.

UNS Energy Corp., a Fortis Co

UNS Energy Services

UNS Gas, Inc.

Valley Energy, Inc.

Vectren Corporation

Vermont Gas Systems, Inc.

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

Centra Gas Manitoba Inc.

Cheniere Energy, Inc.

Distrigas LNG

Dominion Energy Carolina Gas Transmission, LLC

Dominion Energy Transmission, Inc.

Dow Pipeline Company

Eastern Shore Natural Gas Company

Enbridge Gas Distribution Inc.

Enbridge Inc.

Enbridge St. Lawrence Gas


EQT Corp.

EQT Midstream Partners, LP

Gaz Metro

Great Plains Natural Gas Co.


Kern River Gas Transmission Co.

Kinder Morgan Inc.

Manitoba Hydro

National Fuel Gas Supply Corporation

Northern Natural Gas Company

NW Natural Gas Storage

PAA Natural Gas Storage, L.P.

Rockpoint Gas Storage

Sacramento Municipal Utility District

Seadrift Pipeline Corporation

Southern Natural Gas Company

Southern Star Central Gas Pipeline, Inc.

Sprague Operating Resources, LLC

Tellurian, Inc.

Tenaska Marketing Ventures

Tennessee Gas Pipeline

TransCanada Corporation

Union Gas, An Enbridge Company

WBI Energy, 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.

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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

Abriox Inc.



Advance Engineering Corporation


AEGIS Insurance Services, Inc.

Aether DBS

Agave Wire LTD


Aim Energy Group Inc.


Air Liquide Technical Services LLC

Alaska Gasline Development Corporation

Alliance Consulting Group

American AVK Company

American Innotek, Inc.

AmFuels Intl., Inc.

Aquilon Energy Services, Inc.

ARB, Inc. - a subsidiary of Primoris Services Corporation


Arkema Inc.

Armstrong Teasdale, LLP

Atlas Copco Gas and Process



B. Frank Joy, LLC

Babst Calland

Baker Hughes

Balon Corporation

Bank of America Merrill Lynch

Barr Engineering Co.

Bascom-Turner Instruments

Basic Systems, Inc.


Berntsen International, Inc.

Bevolo Gas & Electric Lights

Bingham & Taylor

Black & Veatch Corporation

Black & Veatch Corporation

Black & Veatch Corporation

Black & Veatch Corporation

Blackeagle Energy Services

Boehmer GmbH

Bond Brothers, Inc.

Border States

BP Energy Company

Bradley B Bean PE



Burns & McDonnell

C.R. Wall & Co. Inc.


Cameron, A Schlumberger Company

Campos EPC LLC

Canada Pipeline Accessories Company Ltd.

CartoPac International, Inc.

Celerity Consulting Group

Centuri Construction Group

CH-IV International

CHA Consulting, Inc.

Charter Plastics, Inc.


Chevron Phillips Chemical Co.

CHI Engineering Services, Inc.

Chicago Fittings Corporation


Citi Research


Clock Spring Company, L.P.

CNA, Inc.

Colorado Engineering Experiment Station Inc.

Concentric Energy Advisors Inc.

Consolidated Analytical Systems, Inc.

Construction Accessories, Inc.

Continuum Advisory Group

Continuum Capital

ControlPoint Limited

Coorstek Igniter Products

Copperleaf Technologies

CORIX Utility Services

Cozen O'Connor

Cryostar USA

CS Energy Ventures

CS Week

Cullen and Dykman LLP

Davies Consulting, now part of Accenture

Daymark Energy Advisors, Inc.





Deloitte Tax LLP

Digital Control Incorporated

Ditch Witch


Doyle Hartman, Oil Operator

Dresser Becker Precision Equipment

Dresser Pressure Regulation Group

DRS Enterprises Inc.

DuPont Company


Dynamic Risk

E2 Consulting Engineers, Inc.

Eagle Research Corporation

Ecotec Solutions, Inc.

Elecnor Hawkeye LLC

Elecsys Corporation

Electro Scan Inc.

ELM Locating & Utility Services


Emerson Automation Solutions (Micro Motion)

Emerson Automation Solutions - Daniel Measurement & Control

Emerson Automation Solutions - Remote Automation Solutions

EN Engineering

Endress+Hauser Flowtec AG Division USA

Energy Control Systems, Inc.

Energy Economics Inc.

Energy Experts International, Inc.

ENERGY worldnet, Inc.

Enetics, Inc.

Enterprise Products Partners, L.P.

EnviroCal, Inc.

Equipment Controls Company

Equistar Chemicals, LP

Ernst & Young LLP

Esri, Inc.

Evercore Partners

Evonik Degussa Corporation

exp Energy Services Inc.

Exponent, Inc.

Exponent, Inc.

Faneuil, Inc.

Farnsworth Group, Inc.

Farwest Corrosion Control Company

Feeney Brothers Utility Services

Ferreira Construction Co., Inc.

Fitch Ratings

Florida Gas Contractors, Inc

Flow-Cal, Inc.

Foster Associates Consultants, LLC

G2 Integrated Solutions

Gajeske, Inc.

Gannett Fleming Valuation and Rate Consultants, LLC

Gas Measurement Instruments Ltd.

Gas Operations Innovation Alliance, LLC

Gas Transmission Systems, Inc.

GDS Associates, Inc.

GE / Dresser

GE Digital Solutions

GE Energy Connections

GE Oil & Gas - Dresser Meters and Instruments

GE Oil & Gas, Dresser, Inc.

GEI Consultants, Inc.

GeoEngineers, Inc.

Georg Fischer Central Plastics, LLC

GeoSpatial Innovations, Inc.

Geostock Sandia

Geosyntec Consultants, Inc.

Global Information Systems, LLC

Goodman Main Stopper Mfg. Co., Inc.

GP Strategies

Grace Industries LLC

Grid One Solutions Inc.


GTG Engineering Canada Inc.

GTI - Gas Technology Institute

Hallen Construction Company

HammerHead Trenchless Equipment

Hanging H

Hatch Mott MacDonald

HBK Engineering, LLC


Heath Consultants Incorporated

Heidrick & Struggles

Henkels & McCoy, Inc.

HeplerBroom, LLC

Hermann Sewerin GmbH

Holland Engineering, Inc.

Honeywell Process Solutions

Honeywell Smart Energy Gas Americas

Houlihan Lokey

Hubbell Gas Connectors & Accessories

Hydromax USA



Industrial Fabrics, Inc.

Industrial Training Services, Inc.

INEOS Olefins & Polymers USA


Inner-Tite Corp.

Innovis Data Solutions, Inc.

Insight Global, LLC

Integrity Engineering PLLC

IntelliChoice Energy

InterCon Construction, Inc.

International/Interprovincial Corrosion Control


Irby Company

irth Solutions

Itron, Inc.

Itron, Inc.

Itron, Inc.

J.F. Kiely Service Company


James W. Sewall Company

Jameson LLC

JANA Corporation

JL Allen Services, Inc.

JMS Natural Gas Consulting LLC

Joe Knows Energy LLC

John P. Woodyard, PE

Jomar Valve

Kelley Instrument Machine, Inc.

Kerotest Manufacturing Corp.

Kiewit Energy


King Innovation

Kleinfelder, Inc.



KS Energy Services

Landis + Gyr



LI-COR Biosciences

Liberty Coating Company LLC

Liberty Sales & Distribution, LLC

Linc Energy Systems

Linde Engineering North America Inc.

Locate Management

Luvian Partners, Inc.

Luxfer-GTM Technologies, LLC


M. T. Deason Company, Inc.

Magnolia River

Mainline Control Systems

Manufacturas Marachem

Massachusetts Materials Tech LLC

MasTec North America, Inc.


Maxitrol Company

MBW Incorporated

McCarter & English, LLP

McCoy Leavitt Laskey LLC

McDonald Hopkins

McKinsey & Company, Inc.


Mears Group, Inc.

Mercer Technical Services

Merjent, Inc.


Meter Valve & Control Inc

Michael Baker International

Michell Instruments, Inc.

Michels Corporation


Milhouse Engineering and Construction, Inc.

Miller Consulting Services

Miller Environmental Group, Inc.

Miller Pipeline

Milliken Infrastructure

Minnich Manufacturing

Morgan Stanley

Morgan, Lewis & Bockius LLP


MRC Global

Mueller Company - Gas Products Division

Munters Corporation

National Compliance Management Service, Inc. (NCMS)

Natural Gas Technology Center

Network Infrastructure, Inc.

Nightstick by Bayco Products, Inc.

North American Society for Trenchless Technology (NASTT)

North Coast Seal

Northstar Industries, LLC

Norton Corrosion Limited

Norton McMurray Manufacturing Company

NPL Construction Co.

Oliver Wyman

OMark Consultants Inc.

Omega Flex

Omni Flow Computers, Inc.

Open Systems International

Opvantek Inc.

Oracle Corporation

Oracle Corporation

Oracle Corporation

Oracle Corporation

Oracle Corporation

Ox Equipment


Patrick Engineering

PB Energy Storage Services, Inc.

Performance Pipe, Div. of Chevron Phillips Chemical Company LP

Pergam Technical Services

Phillips Lytle LLP

PI Confluence, Inc.

Picarro Inc.

Pietro Fiorentini USA

Pipeline Equipment Resource Company

Pipeline Plastics, LLC

Pipeline Testing Consortium, Inc.

Pivotal Home Solutions

Plastic Pipeline Integrity LLC

Plauche' Maselli Parkerson


Polyvalve, LLC


Post & Schell, P.C.

PowerPlan, Inc.

Precision Pipeline Solutions, LLC

Premier Equipment Group

PricewaterhouseCoopers LLP

Pro-Line Safety Products Co.

Progressive Pipeline Management


Q3 Contracting

RBC Resources LLC

RCP Inc.

Regions Securities, LLC

Regulated Capital Consultants, LLC

Reliability Management Group

Remote Operations Center, LLC

Robert H. Peterson Company

Robert J. Devereaux Corporation, Inc.

Romet Limited

Rooney Rippie & Ratnaswamy LLP


Rothfuss Engineering Company

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

SAE, Inc.

Sanborn, Head & Associates, Inc.

Schneider Electric

Schneider Electric/Foxboro

ScottMadden, Inc.

Seal For Life Industries


Sensit Technologies


Shelter Harbor Advisors

Shelter Works

SICK Oil and Gas

Sidock Group, Inc.

Silver Needle, Inc.

Snelson Companies, Inc.

Southeast Connections, LLC

Southern Cross

Southwest Research Institute

Specialty Product Technologies

SpectraSensors, Inc.

Stabilis LNG

Standby Systems, Inc.


STATS Groups

Steptoe & Johnson PLLC

Stevens & Lee

Stream-Flo Industries

Structural Integrity Associates, Inc.

Subsite Electronics

Surveying And Mapping, LLC

T.D. Williamson, Inc.

Tecvalco Ltd.

Teel Plastics Inc.

Tellus Underground Technology, Inc.

Terra Tape, Div. of Reef Industries

The Bill Sims Company

The Dow Chemical Company

Thomasson Company

Timberline Tool

TMCo, Inc.


Trenton Corporation

Trico Surveying and Mapping Inc.

Trimble Energy

TT Technologies, Inc.

Tube-Mac Industries (Services) Inc.

Tubis LLC

UBE America, Inc.


ULC Robotics

Ultimate Power Company

Ultrafryer Systems, Inc.

Underground Construction Co., Inc.

Universal Vortex, Inc.

UniversalPegasus International

Uponor Infra Ltd



Utilicor Technologies Inc.

UtiliQuest LLC

Utilities International, Inc.

Utility Line Services, Inc.

Utility Supply Inc.


Valdes Engineering Company

Valtronics and Mustang Sampling

Van Ness Feldman LLP

Vega Energy Partners Ltd.


Vermeer Corporation


VF Imagewear/Bulwark

Victaulic Company

Wade Trim

Wantman Group, Inc.

WFMS, Inc.

Witt O'Brien's, LLC

WL Plastics Corp.

Wood Group Mustang, Inc.

Wright & Talisman, P.C.

WRS Environmental Services

YANMAR America Corporation

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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