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 |
|---|---|---|
| Mar 2026 | $0.617/per therm | $0.49/per therm |
| Feb 2026 | $1.022/per therm | $0.54/per therm |
| Jan 2026 | $0.789/per therm | $0.42/per therm |
| Dec 2025 | $0.769/per therm | $0.39/per therm |
| Nov 2025 | $0.685/per therm | $0.39/per therm |
| Oct 2025 | $0.659/per therm | $0.39/per therm |
| Sep 2025 | $0.709/per therm | $0.45/per therm |
| Aug 2025 | $0.739/per therm | $0.52/per therm |
| Jul 2025 | $0.666/per therm | $0.54/per therm |
| Jun 2025 | $0.720/per therm | $0.54/per therm |
| May 2025 | $0.701/per therm | $0.54/per therm |
| Apr 2025 | $0.687/per therm | $0.58/per therm |