Your Supply Options


Depending on the supplier, you will find some offers that lock in your gas price and others that compete with Ameren Illinois' monthly gas supply charges.  By comparing offers and making the choice that's best for you, you may be able to save money on the cost of your natural gas.

Whether you choose a new supplier or continue to purchase your gas from Ameren Illinois, you're still a valued Ameren Illinois customer.  We will continue to deliver your gas through our reliable pipeline system and we'll respond to all natural gas emergencies.

Natural Gas Pricing

Learn about natural gas pricing and what that means for you.

Supply Choice

Review your natural gas supply options.

Choosing Suppliers

Review, compare and choose a gas supplier.


Explanations of commonly used terms and acronyms.


Answers to commonly asked questions.

Gas Transportation

Information on providing gas transportation to customers.

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