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Spire Inc. owns natural gas utilities serving Missouri, Alabama and Mississippi. These utilities generate most of its revenue, with residential customers contributing the largest share. They buy gas and deliver it through local distribution networks, billing customers for both the gas and delivery service. They also charge customers to transport gas those customers own. Purchased gas costs generally pass through to customer bills, subject to regulatory review; state utility commissions set service rates and decide which operating costs and infrastructure investments the utilities may recover.
Heating demand drives the utility business, so earnings are concentrated in the colder months. Weather-adjustment mechanisms soften, but do not eliminate, the effect of warmer winters. Meeting peak demand also depends on access to gas supplies, interstate pipelines and storage.
Spire’s smaller businesses arrange gas purchases and deliveries and provide pipeline and storage capacity. Spire Marketing buys and delivers gas chiefly to wholesale counterparties and large commercial and industrial users, using contracted transportation and storage. Its margins depend partly on regional and seasonal gas-price differences. Spire STL Pipeline, Spire MoGas Pipeline and Spire Storage earn capacity-access fees and usage charges. Spire STL Pipeline relies primarily on Spire Missouri for revenue, while demand and gas-price differences influence transportation and storage revenue.
The risk section is the longest, dullest part of the filing. This keeps only what can really hurt you: where it hits, how hard, when it plays out.
Every company claims an edge. Each one is checked against hard numbers like margins and returns: which hold, and which line gives way first.
ONE GAS, INC. offers a comparison for Spire’s regulated gas sales to households and businesses, with both serving their respective Kansas City markets. Its gas-distribution results are more relevant to Spire’s utility business than to Spire’s gas marketing operations.
Atmos Energy and Spire both collect regulated charges for selling and delivering gas to customers, with pipelines and storage supporting their distribution networks. Watch Atmos’s distribution rates: they are intended to cover operating costs and a return on invested capital, making them a useful comparison for Spire’s recovery of network costs.
New Jersey Resources Corp is a comparison for both sides of Spire: regulated gas delivery to households and businesses, plus unregulated gas buying and selling and transportation and storage services. Watch its Energy Services results separately from utility earnings when assessing Spire’s gas marketing business, whose income is more exposed to market fluctuations.
Northwest Natural Holding Company provides a comparison for Spire’s regulated gas delivery to households and businesses in defined service territories. Focus on its residential and commercial gas margins rather than total gas volumes: in its December 31, 2025 summary, industrial customers used 40% of delivered gas but contributed only 5% of margin.
Southwest Gas Holdings, Inc. faces the same cost-recovery question as Spire: both buy, deliver and transport gas for customers at state-regulated rates intended to cover utility costs and investment returns. Watch the timing and size of Southwest Gas’s approved rate increases, which can materially affect its gas-distribution results.
Ameren’s Missouri electricity service competes with Spire’s gas service for customers’ energy choices, while both charge regulated utility rates in Missouri. Its Missouri electric business is the relevant part to watch for that rivalry, rather than its Illinois gas operations.
Duke Energy agreed to sell its Piedmont Tennessee gas-distribution business to Spire for approximately $2.48 billion, making it directly relevant to Spire’s planned utility expansion. Watch regulatory approvals and closing updates: the deal could be delayed or fail to close, and integration could cost more than expected.
Chesapeake Utilities offers a comparison for Spire’s businesses that deliver gas to customers and move it through transmission pipelines, but it also earns money from electricity and propane. Its regulated gas-distribution and transmission operations are the closer comparison for Spire, rather than its combined energy results.
Unitil Corporation provides a comparison for Spire’s regulated gas delivery and recovery of network costs through customer rates. Gas customers represented nearly half of Unitil’s utility customer base at December 31, 2025, so watch gas-distribution results separately from its electricity business.
Fed Interest Rate Decision
Spire’s debt-funded utility and gas businesses pay interest on borrowings, so Fed decisions that move economy-wide rates can change the cost of refinancing debt and financing its pending acquisition.
Expected4.0%Last release4.0%
If it comes in above expectations
Higher rates can raise interest on refinancing and new acquisition funding, increasing costs for Spire and leaving less earnings after interest.
If it comes in below expectations
Lower rates can reduce interest on refinancing and new acquisition funding, easing Spire’s borrowing costs and leaving more earnings after interest.
ONE GAS, INC. earningsOGS
ONE Gas's gas-distribution results offer a comparison for household and business demand and cost recovery in the Kansas City-area markets, where Spire's utility business also operates.
Read ONE Gas's gas-distribution results alongside any disclosure on demand and cost recovery. Steady results would suggest that customer demand and cost recovery are supporting a comparable gas utility, a useful benchmark for Spire; weaker results would signal pressure in a related market, but would not prove Spire faces the same cause or degree of pressure.
Southwest Gas Holdings, Inc. earningsSWX
Southwest Gas's report can show whether approved gas-rate increases are helping it recover distribution costs and investment, a question that also matters to Spire's utilities.
Compare Southwest Gas's approved rate increases with its gas-distribution results. Better results alongside those increases would suggest that regulator-approved cost recovery is reaching the business; if results remain weak, costs or the timing of recovery may still be a drag, and Spire's own rate approvals and recovery timing remain the key test.
Duke Energy Corporation earningsDUK
Any update in Duke Energy's report on the sale of its Tennessee gas-distribution business would show whether Spire's planned utility expansion is moving toward closing.
Look for Duke Energy's explicit updates on regulatory approvals and closing; if the sale is complete, note any discussion of the handover. Progress toward approval and closing would bring Spire's planned addition of customers and distribution operations closer to becoming part of the business; a delay or an unclosed sale would leave that expansion unrealized.
Spire Inc. earningsThis company
This report shows whether Spire's regulated gas utilities can carry the business while its more market-sensitive Gas Marketing results move around.
Read Gas Utility results alongside Gas Marketing, and note Midstream’s fixed access fees and volume-based charges. Steady utility results even as marketing fluctuates would show regulated gas delivery is still carrying the business. If the utility weakens, look to weather, operating costs and the timing of regulatory cost recovery to understand what is eroding that support.
New Jersey Resources Corp earningsNJR
New Jersey Resources' Energy Services results show the market conditions facing unregulated gas trading and related services, a useful comparison for Spire's more market-sensitive Gas Marketing business.
Read New Jersey Resources' Energy Services results separately from its utility business. Stronger Energy Services results would suggest more favorable conditions for related gas services; weaker results would highlight their exposure to market swings. For Spire, this is a reference point for Gas Marketing's market risk, not proof that its results are the same.
