Key Takeaways
Spire Inc.'s fiscal year 2025 (52-week year ended September 30, 2025; Spire's fiscal calendar aligns with the natural gas industry's heating-season convention) was a year of capital investment continuity and rate case execution that positioned the natural gas utility holding company for the multi-year capex cycle that defines its earnings trajectory: net economic earnings of approximately $295-330M generated adjusted EPS of approximately $4.55-5.05 on approximately 60-62M diluted shares, supporting the dividend of $3.105/year (~$0.7763/quarter) at a payout ratio of approximately 60-65% — comfortable coverage that allows continued dividend growth at the company's targeted 4-7% annual rate. The capital expenditure program reached approximately $750-825M in FY2025, primarily directed at the multi-year pipeline replacement and infrastructure modernization programs in Missouri (the Spire STL Pipeline access maintenance, distribution main replacement under various Infrastructure System Replacement Surcharge mechanisms) and Alabama (similar infrastructure replacement programs in Mobile and Birmingham), increasing rate base by approximately $400-500M to a year-end total of approximately $8.5-8.9B that earns the regulated ROE established by each jurisdiction's public service commission. The investment thesis for Spire in FY2026 (fiscal year ending September 30, 2026) centers on three structural questions: (1) whether the in-progress Missouri rate case (Spire Missouri filed in mid-2025 seeking approximately $290M annual revenue increase to recover capital investments and reflect updated cost of service) achieves a constructive outcome that supports continued capex deployment, (2) whether Alabama and Mississippi rate cases (smaller in dollar terms but important for jurisdictional balance) provide adequate ROE support, and (3) whether the natural gas utility business model remains structurally sound against long-term policy headwinds (state-level building electrification mandates, climate-driven gas customer attrition) that could compress the runway for sustained 4-7% rate base growth that supports the equity story.
Spire Inc. (formerly The Laclede Gas Company, renamed to Spire in 2016 to reflect the multi-jurisdictional expansion) was founded in 1857 in St. Louis as one of the original gas-light utilities serving the rapidly growing American midwest. The 168-year operational history positions Spire among the longest continuously operating utilities in the United States, with infrastructure assets accumulated over multiple generations that include miles of natural gas distribution mains, pressure-regulating stations, gas storage facilities, and the Spire STL Pipeline (a regulated FERC interstate natural gas pipeline serving the St. Louis metropolitan area). The strategic transformation from a single-state utility (Missouri only) to a multi-jurisdictional operator began with the 2014 acquisition of Mobile Gas Service Corporation (Alabama) and continued with the 2016 acquisition of Alagasco (extending Alabama footprint) and the 2018 acquisition of EnergySouth (Mississippi). CEO Steven Lindsey, who joined Spire as CFO in 2014 and assumed the CEO role in 2023, has overseen the company's continued investment in infrastructure modernization programs while navigating the rate case dynamics that determine the regulatory ROE outcomes Spire's earnings depend on.
Business Structure
Spire reports through three segments: Gas Utility (the dominant segment), Gas Marketing, and Other (corporate and segment-eliminated activities).
Gas Utility (~92% of revenue, ~$2.55B FY2025): The regulated natural gas distribution business operating in Missouri, Alabama, and Mississippi.
- Spire Missouri (~62% of utility segment revenue): Largest subsidiary; serves approximately 1.2M customers across the St. Louis metropolitan area, eastern Missouri, and western Missouri (Kansas City metro). Missouri Public Service Commission jurisdiction. Allowed ROE in last general rate case approximately 9.40-9.75%; current rate case (filed 2025) seeking modestly higher.
- Spire Alabama (~28% of utility segment revenue): Combined Mobile Gas + Alagasco operations serving approximately 425,000 customers in Mobile and Birmingham metropolitan areas. Alabama Public Service Commission jurisdiction. Allowed ROE approximately 9.50-10.00%.
- Spire Gulf and Spire Mississippi (~10% of utility segment revenue): Combined Mississippi operations serving approximately 110,000 customers. Mississippi Public Service Commission jurisdiction.
Gas Marketing / Spire Marketing (~6% of revenue, ~$155M FY2025): Non-regulated natural gas marketing and risk management services to wholesale customers (large industrial, utility, and producer counterparties). Revenue is derived from buy/sell margins and storage/transportation arbitrage; the segment is volatile and lower-margin than the utility business.
Other / Spire STL Pipeline + Storage (~2% of revenue, ~$50M FY2025): The Spire STL Pipeline is a 65-mile FERC-regulated interstate gas pipeline (commissioned 2018) connecting interstate pipeline systems to the St. Louis metropolitan area. The pipeline has faced a multi-year regulatory and litigation challenge over its certificate (FERC initially issued certificate, was challenged by environmental groups, then re-issued); operations continue at present. Spire also owns natural gas storage assets that provide seasonal balancing for utility operations.
Key Core Metrics Performance
Earnings, Dividend, and Rate Base Trajectory (FY2021–FY2025, fiscal years ending September 30)
| Fiscal Year | Adj. Net Income | Adj. EPS | Dividend/Share | Rate Base | Capex |
|---|---|---|---|---|---|
| FY2021 | ~$220M | ~$4.05 | ~$2.685 | ~$5.85B | ~$485M |
| FY2022 | ~$255M | ~$4.55 | ~$2.760 | ~$6.45B | ~$555M |
| FY2023 | ~$280M | ~$4.85 | ~$2.880 | ~$7.10B | ~$650M |
| FY2024 | ~$295M | ~$4.95 | ~$2.985 | ~$7.85B | ~$735M |
| FY2025 | ~$315M | ~$4.85 | ~$3.105 | ~$8.65B | ~$795M |
The pattern of accelerating capex (from ~$485M in FY2021 to ~$795M in FY2025) reflects the multi-year pipeline replacement and infrastructure modernization programs across Spire's three jurisdictions. Rate base growth of approximately 8-10% annually has supported earnings growth at approximately 6-9% annually, consistent with the typical regulated utility model where rate base growth (multiplied by allowed ROE) drives earnings growth.
Segment Operating Income Contribution (FY2025)
| Segment | Revenue | Adj. Operating Income | Operating Margin |
|---|---|---|---|
| Spire Missouri | ~$1.55B | ~$245M | ~15.8% |
| Spire Alabama | ~$725M | ~$125M | ~17.2% |
| Spire Gulf + MS | ~$255M | ~$45M | ~17.6% |
| Total Gas Utility | ~$2.55B | ~$415M | ~16.3% |
| Gas Marketing | ~$155M | ~$15-25M | ~10-15% (volatile) |
| Other / Pipeline | ~$50M | ~$25M | ~50% |
Missouri operations are the lowest-margin within the utility group (Missouri's allowed ROE has historically been at the lower end of Spire's footprint; rate design includes more decoupling and customer-class subsidies than the Alabama jurisdiction).
Capital Structure
| Year | Long-term Debt | Equity | Net Debt | Net Debt/EBITDA | Equity Issuance |
|---|---|---|---|---|---|
| FY2023 | ~$3.50B | ~$2.95B | ~$3.45B | ~5.7x | ~$50M |
| FY2024 | ~$3.85B | ~$3.10B | ~$3.65B | ~5.7x | ~$80M |
| FY2025 | ~$4.05B | ~$3.30B | ~$3.85B | ~5.7x | ~$110M |
The debt-to-EBITDA ratio of approximately 5.7x is consistent with regulated utility holding company capital structures (typically 5.0-6.5x for investment-grade rated peers). Spire holds investment-grade credit ratings (S&P BBB+, Moody's Baa2 at the holding company level; subsidiary utilities one notch higher). The annual equity issuance of approximately $50-110M (through ATM programs and dividend reinvestment) provides modest equity financing for the capex program without significant dilution.
Market Evaluation
Spire trades at approximately 14-18x forward adjusted EPS — utility multiples appropriate for the company's combination of stable rate-regulated earnings, mid-single-digit dividend growth, and limited equity downside given the regulated business model. The bull case is constructive rate case outcomes + sustained capex: if Missouri's pending rate case approves an ROE of 9.75-10% with full recovery of capital investments, and Alabama's 2026 rate case provides similar support, Spire's adj. EPS could reach $5.40-5.80 by FY2027 with rate base reaching $10-11B — supporting equity at a 16-17x multiple and continued dividend growth toward $3.50/share. The bear case is rate case disappointment + electrification headwinds: if a Missouri PSC ruling reduces the allowed ROE meaningfully (toward 9.0%), and if state-level natural gas electrification policies (Missouri has no current pro-electrification policy, but national policy direction creates uncertainty) accelerate residential customer attrition, rate base growth could decelerate to 4-5% annually with EPS growth compressed to 2-4% — implying equity returns dependent largely on dividend yield with limited capital appreciation.
Pipeline Replacement Programs and the Decade-Long Capex Tailwind
Spire's earnings growth thesis depends on the sustainability of the pipeline replacement and infrastructure modernization programs that drive rate base growth. These programs — known by various names across jurisdictions (Infrastructure System Replacement Surcharge / ISRS in Missouri, Pipeline Replacement Investment Program / PRIP in Alabama, similar mechanisms in Mississippi) — provide formula-based recovery of capital investments to replace aging cast iron and bare steel distribution mains with modern plastic pipe.
The strategic rationale for these programs is multi-factor: (1) safety — older cast iron mains have higher leak rates and corrosion-related failure risks, and the Pipeline and Hazardous Materials Safety Administration (PHMSA) has issued regulations encouraging utilities to replace at-risk infrastructure; (2) emissions reduction — natural gas leaks are a meaningful methane emissions source, and replacing leak-prone mains reduces fugitive methane emissions (an environmental benefit that aligns with state-level climate policies even where natural gas remains the heating fuel of choice); (3) reliability — modern plastic pipe systems have lower maintenance requirements and better leak detection capabilities. The replacement programs have multi-decade timelines: Missouri's cast iron replacement program, for example, is approximately 60-65% complete after 15 years of consistent investment, with another 10-15 years of capex visibility at current pace.
The risk to this multi-decade thesis is policy direction. Several US states (California, New York, Massachusetts, Washington) have enacted policies that incentivize building electrification or restrict new natural gas infrastructure connections. None of Spire's jurisdictions (Missouri, Alabama, Mississippi) has enacted similar policies, and in fact Missouri legislation in recent years has explicitly preserved utility customer choice for natural gas. However, longer-term policy direction at the federal level (EPA emissions rules, building energy efficiency standards) could create uncertainty about gas customer growth and the regulatory environment for ongoing capex programs — a structural risk that affects the terminal value assumptions in any long-duration utility investment.