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Note 8 - Fair Value Measurements

6 Months Ended

Mar. 31, 2023

Fair Value Measurement and Measurement Inputs, Recurring and Nonrecurring [Text Block]

The information presented in the following tables categorizes the assets and liabilities in the balance sheets that are accounted for at fair value on a recurring basis in periods subsequent to initial recognition.

The mutual funds included in Level 1 are valued based on exchange-quoted market prices of individual securities.

Derivative instruments included in Level 1 are valued using quoted market prices on the New York Mercantile Exchange (NYMEX) or the Intercontinental Exchange (ICE), and also certain natural gas commodity contracts. Derivative instruments classified in Level 2 include derivatives that are valued using broker or dealer quotation services whose prices are derived principally from, or are corroborated by, observable market inputs. Also included in Level 2 are certain derivative instruments that have values that are similar to, and correlate with, quoted prices for exchange-traded instruments in active markets. Derivative instruments included in Level 3 are valued using generally unobservable inputs that are based upon the best information available and reflect management’s assumptions about how market participants would price the asset or liability. There were no Level 3 balances as of March 31, 2023, September 30, 2022, and March 31, 2022. The Company’s and the Utilities’ policy is to recognize transfers between the levels of the fair value hierarchy, if any, as of the beginning of the interim reporting period in which circumstances change or events occur to cause the transfer.

The mutual funds are included in “Other Investments” on the Company’s balance sheets and in “Other Property and Investments” on Spire Missouri’s balance sheets. Changes in their recurring valuations are recorded as unrealized gains or losses in the corresponding income statement. Derivative assets and liabilities, including receivables and payables associated with cash margin requirements, are presented net in the balance sheets when a legally enforceable netting agreement exists between the Company, Spire Missouri, or Spire Alabama and the counterparty to a derivative contract.

Spire

	*Quoted Prices in Active Markets (Level 1)*		*Significant Observable Inputs (Level 2)*		*Effects of Netting and Cash Margin Receivables /Payables*			*Total*
As of March 31, 2023
ASSETS
Gas Utility:
U.S. stock/bond mutual funds	$	20.7	$	—	$	—		$	20.7
NYMEX/ICE natural gas contracts		0.1		—		(0.1	)		—
Gas Marketing:
NYMEX/ICE natural gas contracts		31.9		—		(31.9	)		—
Natural gas commodity contracts		39.2		—		(1.3	)		37.9
Other:
U.S. stock/bond mutual funds		29.2		—		—			29.2
Interest rate swaps		16.5		—		—			16.5
Total	$	137.6	$	—	$	(33.3	)	$	104.3
LIABILITIES
Gas Utility:
NYMEX/ICE natural gas contracts	$	62.7	$	—	$	(62.7	)	$	—
Gasoline and heating oil contracts		0.5		—		(0.5	)		—
Gas Marketing:
NYMEX/ICE natural gas contracts		48.1		—		(48.1	)		—
Natural gas commodity contracts		32.4		—		(1.3	)		31.1
Other:
Interest rate swaps		2.2		—		—			2.2
Total	$	145.9	$	—	$	(112.6	)	$	33.3

	*Quoted Prices in Active Markets (Level 1)*		*Significant Observable Inputs (Level 2)*		*Effects of Netting and Cash Margin Receivables /Payables*			*Total*
As of September 30, 2022
ASSETS
Gas Utility:
U.S. stock/bond mutual funds	$	19.1	$	—	$	—		$	19.1
NYMEX/ICE natural gas contracts		57.8		—		(57.8	)		—
Gas Marketing:
NYMEX/ICE natural gas contracts		91.8		—		(91.8	)		—
Natural gas commodity contracts		56.6		—		(4.0	)		52.6
Other:
U.S. stock/bond mutual funds		29.3		—		—			29.3
Interest rate swaps		63.6		—		—			63.6
Total	$	318.2	$	—	$	(153.6	)	$	164.6
LIABILITIES
Gas Utility:
NYMEX/ICE natural gas contracts	$	30.7	$	—	$	(30.7	)	$	—
Gas Marketing:
NYMEX/ICE natural gas contracts		82.3		—		(82.3	)		—
Natural gas commodity contracts		65.5		—		(4.0	)		61.5
Total	$	178.5	$	—	$	(117.0	)	$	61.5

As of March 31, 2022
ASSETS
Gas Utility:
U.S. stock/bond mutual funds	$	23.0	$	—	$	—		$	23.0
NYMEX/ICE natural gas contracts		58.9		—		(58.9	)		—
Gas Marketing:
NYMEX/ICE natural gas contracts		96.1		—		(88.4	)		7.7
Natural gas commodity contracts		30.8		—		(1.0	)		29.8
Other:
U.S. stock/bond mutual funds		24.1		—		—			24.1
Interest rate swaps		28.8		—		(7.9	)		20.9
Total	$	261.7	$	—	$	(156.2	)	$	105.5
LIABILITIES
Gas Marketing:
NYMEX/ICE natural gas contracts	$	40.4	$	—	$	(40.4	)	$	—
Natural gas commodity contracts		106.2		—		(1.0	)		105.2
Other:
Interest rate swaps		7.9		—		(7.9	)		—
Total	$	154.5	$	—	$	(49.3	)	$	105.2

Spire Missouri

	*Quoted Prices in Active Markets (Level 1)*		*Significant Observable Inputs (Level 2)*		*Effects of Netting and Cash Margin Receivables /Payables*			*Total*
As of March 31, 2023
ASSETS
U.S. stock/bond mutual funds	$	20.7	$	—	$	—		$	20.7
NYMEX/ICE natural gas contracts		0.1		—		(0.1	)		—
Total	$	20.8	$	—	$	(0.1	)	$	20.7
LIABILITIES
NYMEX/ICE natural gas contracts	$	62.7	$	—	$	(62.7	)	$	—
Gasoline and heating oil contracts		0.5		—		(0.5	)		—
Total	$	63.2	$	—	$	(63.2	)	$	—

As of September 30, 2022
ASSETS
U.S. stock/bond mutual funds	$	19.1	$	—	$	—		$	19.1
NYMEX/ICE natural gas contracts		57.8		—		(57.8	)		—
Total	$	76.9	$	—	$	(57.8	)	$	19.1
LIABILITIES
NYMEX/ICE natural gas contracts	$	30.7	$	—	$	(30.7	)	$	—

As of March 31, 2022
ASSETS
U.S. stock/bond mutual funds	$	23.0	$	—	$	—		$	23.0
NYMEX/ICE natural gas contracts		58.9		—		(58.9	)		—
Total	$	81.9	$	—	$	(58.9	)	$	23.0