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The table below shows Illinois Energy's TruBalance® Plan variable rates and Nicor Gas' gas supply costs for the past 12 months.

Offer Month TruBalance Plan Variable Rate  Nicor Gas' Supply Cost
May 2024 $0.629/per therm $0.34/per therm
Apr 2024 $0.632/per therm $0.34/per therm
Mar 2024 $0.540/per therm $0.37/per therm
Feb 2024 $0.623/per therm $0.39/per therm
Jan 2024 $0.620/per therm $0.34/per therm
Dec 2023 $0.688/per therm $0.37/per therm
Nov 2023 $0.689/per therm $0.39/per therm
Oct 2023 $0.668/per therm $0.42/per therm
Sep 2023 $0.664/per therm $0.42/per therm
Aug 2023 $0.661/per therm $0.40/per therm
Jul 2023 $0.618/per therm $0.39/per therm
Jun 2023 $0.599/per therm $0.39/per therm