Website Sponsor - IEC

The Illinois Energy Consortium (IEC) is a joint energy purchasing consortium sponsored by IASB, IASA and IASBO. 
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Website Sponsor - Integrys

Integrys Energy Services is the contracted supplier for gas for the Illinois Energy Consortium (IEC).
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Price History

IEC provides price history comparisons for your review.  This document compares the historical IEC gas prices vs. the Market Prices and the Fixed Prices. Please contact us with any questions regarding the information provided below.

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