Energizing the Future

• Strong financial position Adjusted EBITDA¹ (Millions) $600 Solid adjusted EBITDA Ample liquidity at 6/30/22 Supported by credit facility and commercial paper program Balanced long-term capitalization - Spire MO $300M floater issued Dec. 2021 Preferred shares and mandatory convertible $400 $575 $547 $200 $0 9 mos. FY21 9 mos. FY22 Long-term capitalization¹ (at June 30, 2022) ¹See Adjusted EBITDA reconciliation to GAAP and Long-term capitalization in Appendix. 2Including temporary equity and equity units excluding preferred stock. ³Including the current portion of long-term debt excluding equity units. 4FFO = operating income + D&A + impairments - cash paid for interest, net of amounts capitalized-cash paid for income taxes Total debt = long-term debt + current maturities + notes payable 14 Spire | Investor presentation - August 2022 2 Equity Debt 3 Preferred stock 4.0% 42.9% 53.1% S

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