Gas Supplier List

Each Retail Gas Supplier (Supplier) listed below is registered with Ameren and is able to serve Ameren customers in the Ameren Illinois service territories.
Atmos Energy Marketing LLC

SUITE 109 377 RIVERSIDE DRIVE

FRANKLIN TN 37064

(615)465-5806

Contact Name : Gerald Wellman

BP Canada Energy Marketing

SUITE 900 30 S WACKER DRIVE

CHICAGO IL 60606

(312)594-7590

Contact Name : Trevor Cooper

CIMA Energy

9245 N Meridian Street

Indianapolis IN 46260

(317)366-2811

Contact Name : Shaun P. Forkin

Capstone Energy Services

17445 ARBOR STREET

OMAHA NE 68130

(402)996-2246

Contact Name : Mike Miles

CenterPoint Energy Services

SUITE 200 470 N KIRKWOOD RD

ST LOUIS MO 63122

(314)984-6884

Contact Name : Eric Nussbaum

Constellation Energy Services

SUITE 2100 20 N WACKER DRIVE

CHICAGO IL 60606

(312)681-1805

Contact Name : Kirsten Young

Constellation New Energy

SUITE B N21 W23340 RIDGEVIEW PKWY W

WAUKESHA WI 53188

(502)214-6335

Contact Name : Theresa Dietz

Direct Energy Business Mktg

201 S CAPITOL AVE STE 600

INDIANAPOLIS IN 46225

(317)599-4222

Contact Name : John Mehling

EDF Energy Services, LLC

4700 W Sam Houston Pkwy N Suite 250

Houston TX 77041

(219)757-1733

Contact Name : Sean Mathis

Interstate Mun Gas Agency

1310 WEST JEFFERSON

AUBURN IL 62615

(217)438-4642

Contact Name : Heather Viele

Mansfield Power and Gas, LLC

1025 Airport Parkway SW

Gainesville GA 30501

(678)207-3042

Contact Name : Keith Crunk

MidAmerican Energy Services, L

4299 NW Urbandale

Urbandale IA 50322

(515)281-2391

Contact Name : Jean Walker

NRG Power Marketing LLC

804 Carnegie Center

Princeton NJ 08540

(609)524-5537

Contact Name : Alex Stant

Santanna Energy Services

STE 200 7701 SAN FELIPE BLVD

AUSTIN TX 78729

(630)789-6022

Contact Name : Matt Drogos

Spire Marketing Inc

800 Market St, 1st Floor

ST LOUIS MO 63101

(314)342-0749

Contact Name : Douglas Tom

Stand Energy

SUITE 310 40 SHUMAN BOULEVARD

CHESTERFIELD MO 63005

(513)621-1113

Contact Name : Kevin Ralston

Tylex, Inc.

5803 COVEY LANE

TYLER TX 75703

(903)593-2517

Contact Name : Robyn Eitel

U.S. Energy Services

SUITE 208 1000 SUPERIOR BLVD

WAYZATA MN 55391

(763)543-4601

Contact Name : Amy Nippoldt

Vanguard Energy Services

SUITE 142 850 EAST DIEHL ROAD

NAPERVILLE IL 60563

(630)955-1500

Contact Name : Elizabeth Jovanovic

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