ATO · 10-Q · 2026Q2 · Full report
Rate Case Outcomes
ATMOS ENERGY CORP · 2026-08-05 · Importance 40 · Surprise 42 · No source text
During the first nine months of fiscal 2026, Atmos Energy implemented ratemaking proceedings that increased annual operating income by $242.8 million, or $238.8 million excluding a $4.0 million excess deferred income tax impact. The company had additional proceedings in progress as of June 30, 2026 seeking $373.4 million of annual operating income, including $273.2 million for Mid-Tex Cities and $37.8 million for Mississippi. The Colorado Public Utilities Commission approved a $10.8 million increase effective July 1, 2026, while Louisiana rates reflecting a $30.3 million increase were implemented subject to refund pending final commission approval. Completed rate cases included an $8.3 million annual operating income increase in Kansas and a $23.2 million decrease in Mississippi, excluding EDIT effects.
Key facts
- As of June 30, 2026, ratemaking efforts in progress were seeking a total increase in annual operating income of $373.4 million source
- The following ratemaking efforts seeking $373.4 million in increased annual operating income were in progress as of June 30, 2026 (total $373,447 thousand) source
- APT made a GRIP filing on February 13, 2026 covering Jan 1, 2025 through Dec 31, 2025 requesting an increase in operating income of $112.2 million, and RRC approved the GRIP filing on May 12, 2026 source
- During the first nine months of fiscal 2026 Atmos implemented regulatory proceedings resulting in a $242.8 million increase in annual operating income (summary) and rate action detail shows annual formula rate mechanisms increased operating income by $253,620 thousand while rate case filings decreased operating income by $10,873 thousand source
- The Company implemented $30.3 million in operating income increase in Louisiana, subject to refund, with rates effective July 1, 2026, and anticipates receiving final commission approval during the fourth quarter of fiscal 2026 source
- Implemented ratemaking regulatory actions during the nine months ended June 30, 2026 resulted in an increase in annual operating income of $355.0 million source
- On June 10, 2026 the Colorado Public Utilities Commission approved an operating income increase of $10.8 million effective July 1, 2026 source
- Annual formula rate mechanisms implemented during the nine months ended June 30, 2026 totaled $253,620 thousand increase in annual operating income source
Impact estimates
| metric | direction | stage | expected | basis |
|---|---|---|---|---|
| operating_income | positive | realized | +40.4% | Implemented ratemaking regulatory actions during the nine months ended June 30, 2026 resulted in an increase in annual operating income of… |
| operating_income | positive | probable | +21.2% | The following ratemaking efforts seeking $373.4 million in increased annual operating income were in progress as of June 30, 2026 (total… |
| operating_income | positive | realized | +15.1% | Nine months ended June 30, 2026 results were favorably impacted by $132.4 million as a result of Texas legislation effective during the… |
| operating_income | positive | committed | +10.8% | APT made a GRIP filing on February 13, 2026 covering Jan 1, 2025 through Dec 31, 2025 requesting an increase in operating income of $112.2… |
| operating_income | positive | realized | +8.6% | Nine months operating income drivers included a $75.7 million increase primarily due to rate adjustments from GRIP filings approved in… |
| operating_income | positive | realized | +8.1% | Nine months distribution segment income before income taxes was favorably impacted by $70.8 million due to Texas legislation effective… |
| operating_income | positive | realized | +7.0% | Nine months pipeline and storage segment income before income taxes was favorably impacted by $61.6 million due to Texas legislation… |
| operating_income | positive | committed | +2.9% | The Company implemented $30.3 million in operating income increase in Louisiana, subject to refund, with rates effective July 1, 2026, and… |
| operating_income | positive | committed | +1.1% | On June 10, 2026 the Colorado Public Utilities Commission approved an operating income increase of $10.8 million effective July 1, 2026 |
| operating_income | negative | committed | -1.1% | 2026 rate case filings: Kansas increased annual operating income $12,330 thousand (EDIT impact $(3,998) thousand) effective March 1, 2026;… |
| revenue | positive | committed | — | The demand fee charged by the Louisiana natural gas transmission pipeline to the Louisiana distribution division increases five percent… |