10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D. C. 20549

FORM 10-Q

(Mark One)

[ X ]	QUARTERLY REPORT PURSUANT TO SECTION 13 or 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2019
	or
[   ]	TRANSITION REPORT PURSUANT TO SECTION 13 or 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from                        to

Commission File Number	Name of Registrant, Address of Principal Executive Offices and Telephone Number	State of Incorporation	I.R.S. Employer Identification Number
1-16681	Spire Inc. 700 Market Street St. Louis, MO 63101 314-342-0500	Missouri	74-2976504
1-1822	Spire Missouri Inc. 700 Market Street St. Louis, MO 63101 314-342-0500	Missouri	43-0368139
2-38960	Spire Alabama Inc. 2101 6th Avenue North Birmingham, AL 35203 205-326-8100	Alabama	63-0022000

Indicate by check mark whether each registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such report) and (2) has been subject to such filing requirements for the past 90 days.

Spire Inc.	Yes [ X ]	No [    ]
Spire Missouri Inc.	Yes [ X ]	No [    ]
Spire Alabama Inc.	Yes [ X ]	No [    ]

Indicate by check mark whether each registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).

Spire Inc.	Yes [ X ]	No [    ]
Spire Missouri Inc.	Yes [ X ]	No [    ]
Spire Alabama Inc.	Yes [ X ]	No [    ]

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

	Large accelerated filer	Accelerated filer	Non- accelerated filer	Smaller reporting company	Emerging growth company
Spire Inc.	X
Spire Missouri Inc.			X
Spire Alabama Inc.			X

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.

Spire Inc.	[    ]
Spire Missouri Inc.	[    ]
Spire Alabama Inc.	[    ]

Indicate by check mark whether each registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).

Spire Inc.	Yes [    ]	No [ X ]
Spire Missouri Inc.	Yes [    ]	No [ X ]
Spire Alabama Inc.	Yes [    ]	No [ X ]

The number of shares outstanding of each registrant’s common stock as of April 29, 2019, was as follows:

Spire Inc.	Common Stock, par value $1.00 per share	50,745,880
Spire Missouri Inc.	Common Stock, par value $1.00 per share (all owned by Spire Inc.)	24,577
Spire Alabama Inc.	Common Stock, par value $0.01 per share (all owned by Spire Inc.)	1,972,052

Spire Missouri Inc. and Spire Alabama Inc. meet the conditions set forth in General Instructions H(1)(a) and (b) to Form 10-Q and are therefore filing this Form 10-Q with the reduced disclosure format specified in General Instructions H(2) to Form 10-Q.

This combined Form 10-Q represents separate filings by Spire Inc., Spire Missouri Inc., and Spire Alabama Inc. Information contained herein relating to an individual registrant is filed by that registrant on its own behalf. Each registrant makes no representation as to information relating to the other registrants, except that information relating to Spire Missouri Inc. and Spire Alabama Inc. are also attributed to Spire Inc.

TABLE OF CONTENTS
			Page No.
GLOSSARY			2
PART I. FINANCIAL INFORMATION
Item 1	Financial Statements (Unaudited)
	Spire Inc.
		Condensed Consolidated Statements of Income	4
		Condensed Consolidated Statements of Comprehensive Income	5
		Condensed Consolidated Balance Sheets	6
		Condensed Consolidated Statements of Shareholders’ Equity	8
		Condensed Consolidated Statements of Cash Flows	9
	Spire Missouri Inc.
		Condensed Statements of Comprehensive Income	10
		Condensed Balance Sheets	11
		Condensed Statements of Shareholder’s Equity	13
		Condensed Statements of Cash Flows	14
	Spire Alabama Inc.
		Condensed Statements of Income	15
		Condensed Balance Sheets	16
		Condensed Statements of Shareholder’s Equity	18
		Condensed Statements of Cash Flows	19
	Notes to Financial Statements
		Note 1. Summary of Significant Accounting Policies	20
		Note 2. Revenue	23
		Note 3. Earnings Per Share	25
		Note 4. Regulatory Matters	26
		Note 5. Financing Arrangements and Long-term Debt	29
		Note 6. Fair Value of Financial Instruments	30
		Note 7. Fair Value Measurements	31
		Note 8. Concentrations of Credit Risk	35
		Note 9. Pension Plans and Other Postretirement Benefits	35
		Note 10. Information by Operating Segment	38
		Note 11. Commitments and Contingencies	41
		Note 12. Income Taxes	44
Item 2	Management’s Discussion and Analysis of Financial Condition and Results of Operations		45
Item 3	Quantitative and Qualitative Disclosures About Market Risk		62
Item 4	Controls and Procedures		62
PART II. OTHER INFORMATION
Item 1	Legal Proceedings		63
Item 2	Unregistered Sales of Equity Securities and Use of Proceeds		63
Item 5	Other Information		63
Item 6	Exhibits		64
SIGNATURES			65

1

GLOSSARY OF KEY TERMS AND ABBREVIATIONS

AFUDC	Allowance for Funds Used During Construction	PGA	Purchased Gas Adjustment
APSC	Alabama Public Service Commission	RSE	Rate Stabilization and Equalization
ASC	Accounting Standards Codification	SEC	U.S. Securities and Exchange Commission
Company	Spire Inc.	Spire	Spire Inc.
Degree days	The average of a day’s high and low temperature below 65, subtracted from 65, multiplied by the number of days impacted	Spire Alabama	Spire Alabama Inc.
FASB	Financial Accounting Standards Board	Spire EnergySouth	Spire EnergySouth Inc., the parent of Spire Gulf and Spire Mississippi
FERC	Federal Energy Regulatory Commission	Spire Gulf	Spire Gulf Inc.
GAAP	Accounting principles generally accepted in the United States of America	Spire Marketing	Spire Marketing Inc.
Gas Marketing	Segment including Spire Marketing, which is engaged in the non-regulated marketing of natural gas and related activities	Spire Mississippi	Spire Mississippi Inc.
Gas Utility	Segment including the regulated operations of the Utilities	Spire Missouri	Spire Missouri Inc.
GSA	Gas Supply Adjustment	Spire Missouri East	Spire Missouri’s eastern service territory
ISRS	Infrastructure System Replacement Surcharge	Spire Missouri West	Spire Missouri’s western service territory
Missouri Utilities	Spire Missouri, including Spire Missouri East and Spire Missouri West, the utilities serving Missouri	Spire STL Pipeline	Spire STL Pipeline LLC
MMBtu	Million British thermal units	Spire Storage	Spire’s physical natural gas storage operations at two facilities in Wyoming
MoPSC	Missouri Public Service Commission	TCJA	The Tax Cuts and Jobs Act of 2017
MSPSC	Mississippi Public Service Commission	U.S.	United States
NYSE	New York Stock Exchange	Utilities	Spire Missouri, Spire Alabama and the subsidiaries of Spire EnergySouth
O&M	Operation and maintenance expense

2

PART I. FINANCIAL INFORMATION

The interim financial statements included herein have been prepared by three separate registrants — Spire Inc. (“Spire” or the “Company”), Spire Missouri Inc. (“Spire Missouri” or “Missouri Utilities”) and Spire Alabama Inc. (“Spire Alabama”) — without audit, pursuant to the rules and regulations of the United States (“U.S.”) Securities and Exchange Commission (“SEC”). These financial statements should be read in conjunction with the financial statements and the notes thereto included in the registrants’ combined Form 10-K for the fiscal year ended September 30, 2018.

The Financial Information in this Part I includes separate financial statements (i.e., balance sheets, statements of income and comprehensive income, statements of shareholders’ equity and statements of cash flows) for Spire, Spire Missouri and Spire Alabama. The Notes to Financial Statements and Management’s Discussion and Analysis of Financial Condition and Results of Operations are also included and presented herein on a combined basis for Spire, Spire Missouri and Spire Alabama.

3

Item 1. Financial Statements

SPIRE INC.

CONDENSED CONSOLIDATED STATEMENTS OF INCOME

(UNAUDITED)

	Three Months Ended March 31,					Six Months Ended March 31,
(In millions, except per share amounts)	2019		2018			2019		2018
Operating Revenues:
Gas Utility	$	776.7	$	790.6		$	1,350.5	$	1,332.5
Gas Marketing and other		26.8		22.8			55.0		42.7
Total Operating Revenues		803.5		813.4			1,405.5		1,375.2
Operating Expenses:
Gas Utility
Natural and propane gas		337.4		383.7			589.1		624.5
Operation and maintenance		109.5		135.3			212.0		234.3
Depreciation and amortization		44.4		41.1			88.1		81.4
Taxes, other than income taxes		57.4		58.0			96.6		94.7
Total Gas Utility Operating Expenses		548.7		618.1			985.8		1,034.9
Gas Marketing and other		45.3		45.2			105.1		86.2
Total Operating Expenses		594.0		663.3			1,090.9		1,121.1
Operating Income		209.5		150.1			314.6		254.1
Other Income (Expense), Net		6.1		(7.6	)		8.9		(4.3	)
Interest Charges:
Interest on long-term debt		21.5		21.0			41.9		41.7
Other interest charges		6.1		4.4			11.6		8.1
Total Interest Charges		27.6		25.4			53.5		49.8
Income Before Income Taxes		188.0		117.1			270.0		200.0
Income Tax Expense (Benefit)		33.4		18.9			48.1		(14.2	)
Net Income	$	154.6	$	98.2		$	221.9	$	214.2
Weighted Average Number of Shares Outstanding:
Basic		50.6		48.2			50.6		48.2
Diluted		50.8		48.4			50.8		48.4
Basic Earnings Per Share	$	3.05	$	2.03		$	4.37	$	4.43
Diluted Earnings Per Share	$	3.04	$	2.03		$	4.36	$	4.42

See the accompanying Notes to Financial Statements.

4

SPIRE INC.

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(UNAUDITED)

	Three Months Ended March 31,						Six Months Ended March 31,
(In millions)	2019			2018			2019			2018
Net Income	$	154.6		$	98.2		$	221.9		$	214.2
Other Comprehensive (Loss) Income, Before Tax:
Cash flow hedging derivative instruments:
Net hedging (loss) gain arising during the period		(7.7	)		1.8			(18.1	)		1.9
Reclassification adjustment for gains included in net income		(0.4	)		(0.4	)		(0.7	)		(0.8	)
Net unrealized (loss) gain on cash flow hedging derivative    instruments		(8.1	)		1.4			(18.8	)		1.1
Net gain on defined benefit pension and other postretirement plans		0.1			—			0.1			0.1
Net unrealized gain (loss) on available for sale securities		0.1			—			0.1			(0.1	)
Other Comprehensive (Loss) Income, Before Tax		(7.9	)		1.4			(18.6	)		1.1
Income Tax (Benefit) Expense Related to Items of Other    Comprehensive (Loss) Income		(1.9	)		0.3			(4.4	)		0.2
Other Comprehensive (Loss) Income, Net of Tax		(6.0	)		1.1			(14.2	)		0.9
Comprehensive Income	$	148.6		$	99.3		$	207.7		$	215.1

See the accompanying Notes to Financial Statements.

5

SPIRE INC.

CONDENSED CONSOLIDATED BALANCE SHEETS

(UNAUDITED)

	March 31,			September 30,			March 31,
(Dollars in millions, except per share amounts)	2019			2018			2018
ASSETS
Utility Plant	$	5,856.8		$	5,653.3		$	5,403.4
Less: Accumulated depreciation and amortization		1,738.5			1,682.8			1,645.0
Net Utility Plant		4,118.3			3,970.5			3,758.4
Non-utility Property (net of accumulated depreciation and    amortization of $11.9, $10.4 and $9.1 at March 31, 2019,    September 30, 2018, and March 31, 2018, respectively)		329.1			174.5			116.9
Goodwill		1,171.6			1,171.6			1,171.6
Other Investments		68.4			68.7			66.4
Total Other Property and Investments		1,569.1			1,414.8			1,354.9
Current Assets:
Cash and cash equivalents		11.1			4.4			17.8
Accounts receivable:
Utility		318.6			151.9			302.4
Other		196.5			167.3			111.3
Allowance for doubtful accounts		(28.1	)		(22.4	)		(25.7	)
Delayed customer billings		43.8			6.9			45.6
Inventories:
Natural gas		91.3			175.2			94.3
Propane gas		10.7			12.0			12.0
Materials and supplies		24.3			23.1			22.2
Natural gas receivable		0.3			1.8			3.0
Derivative instrument assets		24.5			13.3			7.3
Regulatory assets		75.3			72.8			97.7
Prepayments		21.0			31.0			18.3
Other		4.3			22.3			12.1
Total Current Assets		793.6			659.6			718.3
Deferred Charges and Other Assets:
Regulatory assets		659.9			669.8			673.6
Other		132.7			128.9			81.6
Total Deferred Charges and Other Assets		792.6			798.7			755.2
Total Assets	$	7,273.6		$	6,843.6		$	6,586.8

6

SPIRE INC.

CONDENSED CONSOLIDATED BALANCE SHEETS (Continued)

(UNAUDITED)

	March 31,			September 30,		March 31,
	2019			2018		2018
CAPITALIZATION AND LIABILITIES
Capitalization:
Common stock (par value $1.00 per share; 70.0 million    shares authorized; 50.7 million, 50.7 million and    48.4 million shares issued and outstanding at    March 31, 2019, September 30, 2018, and    March 31, 2018, respectively)	$	50.7		$	50.7	$	48.4
Paid-in capital		1,485.6			1,482.7		1,327.3
Retained earnings		877.5			715.6		773.7
Accumulated other comprehensive (loss) income		(7.8	)		6.4		4.1
Total Shareholders' Equity		2,406.0			2,255.4		2,153.5
Redeemable noncontrolling interest		—			7.9		6.5
Long-term debt (less current portion)		2,041.9			1,900.1		2,073.9
Total Capitalization		4,447.9			4,163.4		4,233.9
Current Liabilities:
Current portion of long-term debt		215.0			175.5		105.5
Notes payable		512.0			553.6		391.7
Accounts payable		324.8			290.1		194.8
Advance customer billings		6.5			22.7		8.1
Wages and compensation accrued		32.2			39.7		30.0
Dividends payable		31.1			30.0		28.3
Customer deposits		36.7			35.5		36.1
Interest accrued		18.9			15.2		15.8
Taxes accrued		50.9			65.4		49.1
Regulatory liabilities		35.3			35.7		22.2
Other		73.3			58.3		46.4
Total Current Liabilities		1,336.7			1,321.7		928.0
Deferred Credits and Other Liabilities:
Deferred income taxes		490.2			435.8		465.6
Pension and postretirement benefit costs		178.3			180.2		233.4
Asset retirement obligations		325.5			321.1		302.8
Regulatory liabilities		431.3			354.6		353.1
Other		63.7			66.8		70.0
Total Deferred Credits and Other Liabilities		1,489.0			1,358.5		1,424.9
Commitments and Contingencies (Note 11)
Total Capitalization and Liabilities	$	7,273.6		$	6,843.6	$	6,586.8

See the accompanying Notes to Financial Statements.

7

SPIRE INC.

CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS’ EQUITY

(UNAUDITED)

	Common Stock Outstanding						Paid-in			Retained
(Dollars in millions)	Shares			Par			Capital			Earnings			AOCI*			Total
Balance at September 30, 2017		48,263,243		$	48.3		$	1,325.6		$	614.2		$	3.2		$	1,991.3
Net income		—			—			—			116.0			—			116.0
Dividend reinvestment plan		4,618			—			0.3			—			—			0.3
Stock-based compensation costs		—			—			1.9			—			—			1.9
Stock issued under stock-based compensation    plans		105,434			0.1			(0.1	)		—			—			—
Employees’ tax withholding for stock-based    compensation		(33,581	)		(0.1	)		(2.8	)		—			—			(2.9	)
Dividends declared ($0.5625 per share)		—			—			—			(27.2	)		—			(27.2	)
Other comprehensive loss, net of tax		—			—			—			—			(0.2	)		(0.2	)
Balance at December 31, 2017		48,339,714		$	48.3		$	1,324.9		$	703.0		$	3.0		$	2,079.2
Net income		—			—			—			98.2			—			98.2
Dividend reinvestment plan		6,385			—			0.5			—			—			0.5
Stock-based compensation costs		—			—			1.9			—			—			1.9
Stock issued under stock-based compensation    plans		8,680			—			—			—			—			—
Employees’ tax withholding for stock-based    compensation		—			0.1			—			—			—			0.1
Dividends declared ($0.5625 per share)		—			—			—			(27.5	)		—			(27.5	)
Other comprehensive income, net of tax		—			—			—			—			1.1			1.1
Balance at March 31, 2018		48,354,779		$	48.4		$	1,327.3		$	773.7		$	4.1		$	2,153.5
Balance at September 30, 2018		50,671,903		$	50.7		$	1,482.7		$	715.6		$	6.4		$	2,255.4
Net income		—			—			—			67.3			—			67.3
Dividend reinvestment plan		5,063			—			0.4			—			—			0.4
Stock-based compensation costs		—			—			2.0			—			—			2.0
Stock issued under stock-based compensation    plans		74,835			0.1			(0.1	)		—			—			—
Employees’ tax withholding for stock-based    compensation		(27,633	)		(0.1	)		(2.2	)		—			—			(2.3	)
Dividends declared ($0.5925 per share)		—			—			—			(30.0	)		—			(30.0	)
Other comprehensive loss, net of tax		—			—			—			—			(8.2	)		(8.2	)
Balance at December 31, 2018		50,724,168		$	50.7		$	1,482.8		$	752.9		$	(1.8	)	$	2,284.6
Net income		—			—			—			154.6			—			154.6
Dividend reinvestment plan		6,204			—			0.4			—			—			0.4
Stock-based compensation costs		—			—			2.4			—			—			2.4
Stock issued under stock-based compensation    plans		12,633			—			—			—			—			—
Employees’ tax withholding for stock-based    compensation		(368	)		—			—			—			—			—
Dividends declared ($0.5925 per share)		—			—			—			(30.0	)		—			(30.0	)
Other comprehensive loss, net of tax		—			—			—			—			(6.0	)		(6.0	)
Balance at March 31, 2019		50,742,637		$	50.7		$	1,485.6		$	877.5		$	(7.8	)	$	2,406.0

* Accumulated other comprehensive income (loss)

See the accompanying Notes to Financial Statements.

8

SPIRE INC.

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(UNAUDITED)

	Six Months Ended March 31,
(In millions)	2019			2018
Operating Activities:
Net Income	$	221.9		$	214.2
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization		89.1			81.9
Deferred income taxes and investment tax credits		45.5			(15.2	)
Changes in assets and liabilities:
Accounts receivable		(194.3	)		(122.8	)
Inventories		83.9			97.3
Regulatory assets and liabilities		105.9			149.5
Accounts payable		33.6			(50.0	)
Delayed/advance customer billings, net		(53.2	)		(66.0	)
Taxes accrued		(12.9	)		(11.9	)
Other assets and liabilities		(20.6	)		(8.9	)
Other		(1.4	)		41.5
Net cash provided by operating activities		297.5			309.6
Investing Activities:
Capital expenditures		(376.8	)		(215.8	)
Business acquisitions		(7.9	)		(17.1	)
Other		(1.9	)		(0.4	)
Net cash used in investing activities		(386.6	)		(233.3	)
Financing Activities:
Issuance of long-term debt		190.0			75.0
Repayment of long-term debt		(9.1	)		—
Repayment of short-term debt, net		(41.6	)		(85.6	)
Issuance of common stock		1.0			0.8
Dividends paid		(58.8	)		(53.0	)
Other		(2.7	)		(3.1	)
Net cash provided by (used in) financing activities		78.8			(65.9	)
Net (Decrease) Increase in Cash, Cash Equivalents, and Restricted Cash		(10.3	)		10.4
Cash, Cash Equivalents, and Restricted Cash at Beginning of Period		21.4			7.4
Cash and Cash Equivalents at End of Period	$	11.1		$	17.8
Supplemental disclosure of cash paid for:
Interest, net of amounts capitalized	$	(49.0	)	$	(47.2	)
Income taxes		(2.0	)		(0.6	)

See the accompanying Notes to Financial Statements.

9

SPIRE MISSOURI INC.

CONDENSED STATEMENTS OF COMPREHENSIVE INCOME

(UNAUDITED)

	Three Months Ended March 31,					Six Months Ended March 31,
(In millions)	2019		2018			2019		2018
Operating Revenues:
Utility	$	556.6	$	533.2		$	969.8	$	925.5
Total Operating Revenues		556.6		533.2			969.8		925.5
Operating Expenses:
Utility
Natural and propane gas		313.8		311.2			537.2		517.4
Operation and maintenance		70.7		94.0			133.8		154.1
Depreciation and amortization		27.8		25.2			55.0		50.0
Taxes, other than income taxes		41.9		41.2			70.0		67.4
Total Operating Expenses		454.2		471.6			796.0		788.9
Operating Income		102.4		61.6			173.8		136.6
Other Income (Expense), Net		2.5		(9.9	)		1.8		(8.9	)
Interest Charges:
Interest on long-term debt		10.0		9.8			19.4		19.7
Other interest charges		3.2		2.1			5.9		3.8
Total Interest Charges		13.2		11.9			25.3		23.5
Income Before Income Taxes		91.7		39.8			150.3		104.2
Income Tax Expense (Benefit)		11.7		1.4			19.1		(23.6	)
Net Income		80.0		38.4			131.2		127.8
Other Comprehensive Loss, Net of Tax		-		(0.1	)		-		(0.1	)
Comprehensive Income	$	80.0	$	38.3		$	131.2	$	127.7

See the accompanying Notes to Financial Statements.

10

SPIRE MISSOURI INC.

CONDENSED BALANCE SHEETS

(UNAUDITED)

	March 31,			September 30,			March 31,
(Dollars in millions, except per share amounts)	2019			2018			2018
ASSETS
Utility Plant	$	3,460.1		$	3,331.0		$	3,163.8
Less: Accumulated depreciation and amortization		736.7			705.8			687.2
Net Utility Plant		2,723.4			2,625.2			2,476.6
Goodwill		210.2			210.2			210.2
Other Property and Investments		52.8			55.0			59.0
Total Other Property and Investments		263.0			265.2			269.2
Current Assets:
Cash and cash equivalents		6.9			2.0			10.2
Accounts receivable:
Utility		231.8			103.9			222.4
Associated companies		2.4			2.7			1.3
Other		18.5			16.6			26.0
Allowance for doubtful accounts		(21.9	)		(16.0	)		(20.7	)
Delayed customer billings		43.8			6.9			45.6
Inventories:
Natural gas		53.1			127.9			60.0
Propane gas		10.7			12.0			12.0
Materials and supplies		14.4			13.2			13.1
Regulatory assets		30.0			30.7			51.7
Prepayments		11.1			19.1			10.7
Total Current Assets		400.8			319.0			432.3
Deferred Charges and Other Assets:
Regulatory assets		433.6			441.1			446.6
Other		53.0			50.8			9.0
Total Deferred Charges and Other Assets		486.6			491.9			455.6
Total Assets	$	3,873.8		$	3,701.3		$	3,633.7

11

SPIRE MISSOURI INC.

CONDENSED BALANCE SHEETS (Continued)

(UNAUDITED)

	March 31,			September 30,			March 31,
	2019			2018			2018
CAPITALIZATION AND LIABILITIES
Capitalization:
Paid-in capital and common stock (par value $1.00 per share;    50.0 million shares authorized; 24,577 shares issued and    outstanding)	$	762.8		$	760.4		$	758.4
Retained earnings		612.8			501.1			517.3
Accumulated other comprehensive loss		(1.6	)		(1.6	)		(1.8	)
Total Shareholder's Equity		1,374.0			1,259.9			1,273.9
Long-term debt (less current portion)		924.7			824.4			874.0
Total Capitalization		2,298.7			2,084.3			2,147.9
Current Liabilities:
Current portion of long-term debt		50.0			50.0			100.0
Notes payable – associated companies		232.9			345.3			175.8
Accounts payable		72.6			81.7			69.2
Accounts payable – associated companies		8.1			5.8			3.6
Advance customer billings		—			9.5			—
Wages and compensation accrued		24.5			31.3			23.4
Dividends payable		—			9.0			13.5
Customer deposits		13.0			13.1			13.2
Interest accrued		8.6			7.8			8.2
Taxes accrued		27.2			32.0			25.2
Regulatory liabilities		24.2			16.7			2.7
Other		22.4			20.1			19.4
Total Current Liabilities		483.5			622.3			454.2
Deferred Credits and Other Liabilities:
Deferred income taxes		390.5			361.0			388.6
Pension and postretirement benefit costs		132.7			136.9			161.9
Asset retirement obligations		177.8			174.1			161.9
Regulatory liabilities		345.1			274.9			272.5
Other		45.5			47.8			46.7
Total Deferred Credits and Other Liabilities		1,091.6			994.7			1,031.6
Commitments and Contingencies (Note 11)
Total Capitalization and Liabilities	$	3,873.8		$	3,701.3		$	3,633.7

See the accompanying Notes to Financial Statements.

12

SPIRE MISSOURI INC.

CONDENSED STATEMENTS OF SHAREHOLDER’S EQUITY

(UNAUDITED)

	Common Stock Outstanding				Paid-in		Retained
(Dollars in millions)	Shares		Par		Capital		Earnings			AOCI*			Total
Balance at September 30, 2017		24,577	$	0.1	$	756.1	$	416.5		$	(1.7	)	$	1,171.0
Net income		—		—		—		89.4			—			89.4
Stock-based compensation costs		—		—		1.1		—			—			1.1
Dividends declared		—		—		—		(13.5	)		—			(13.5	)
Balance at December 31, 2017		24,577	$	0.1	$	757.2	$	492.4		$	(1.7	)	$	1,248.0
Net income		—		—		—		38.4			—			38.4
Stock-based compensation costs		—		—		1.1		—			—			1.1
Dividends declared		—		—		—		(13.5	)		—			(13.5	)
Other comprehensive loss, net of tax		—		—		—		—			(0.1	)		(0.1	)
Balance at March 31, 2018		24,577	$	0.1	$	758.3	$	517.3		$	(1.8	)	$	1,273.9
Balance at September 30, 2018		24,577	$	0.1	$	760.3	$	501.1		$	(1.6	)	$	1,259.9
Net income		—		—		—		51.2			—			51.2
Stock-based compensation costs		—		—		1.2		—			—			1.2
Dividends declared		—		—		—		(9.8	)		—			(9.8	)
Balance at December 31, 2018		24,577	$	0.1	$	761.5	$	542.5		$	(1.6	)	$	1,302.5
Net income		—		—		—		80.0			—			80.0
Stock-based compensation costs		—		—		1.2		—			—			1.2
Dividends declared		—		—		—		(9.7	)		—			(9.7	)
Balance at March 31, 2019		24,577	$	0.1	$	762.7	$	612.8		$	(1.6	)	$	1,374.0

* Accumulated other comprehensive income (loss)

See the accompanying Notes to Financial Statements.

13

SPIRE MISSOURI INC.

CONDENSED STATEMENTS OF CASH FLOWS

(UNAUDITED)

	Six Months Ended March 31,
(In millions)	2019			2018
Operating Activities:
Net Income	$	131.2		$	127.8
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization		55.0			50.0
Deferred income taxes and investment tax credits		19.1			(23.6	)
Changes in assets and liabilities:
Accounts receivable		(123.5	)		(123.2	)
Inventories		74.9			76.4
Regulatory assets and liabilities		107.3			111.7
Accounts payable		11.1			(10.8	)
Delayed/advance customer billings, net		(46.4	)		(55.5	)
Taxes accrued		(4.8	)		(8.9	)
Other assets and liabilities		(14.4	)		(6.7	)
Other		2.6			40.9
Net cash provided by operating activities		212.1			178.1
Investing Activities:
Capital expenditures		(167.1	)		(129.6	)
Other		0.8			(0.1	)
Net cash used in investing activities		(166.3	)		(129.7	)
Financing Activities:
Issuance of long-term debt		100.0			—
Repayments to Spire, net		(112.4	)		(27.2	)
Dividends paid		(28.5	)		(13.5	)
Net cash used in financing activities		(40.9	)		(40.7	)
Net Increase in Cash and Cash Equivalents		4.9			7.7
Cash and Cash Equivalents at Beginning of Period		2.0			2.5
Cash and Cash Equivalents at End of Period	$	6.9		$	10.2
Supplemental disclosure of cash paid for:
Interest, net of amounts capitalized	$	(23.8	)	$	(22.8	)
Income taxes		—			—

See the accompanying Notes to Financial Statements.

14

SPIRE ALABAMA INC.

CONDENSED STATEMENTS OF INCOME

(UNAUDITED)

	Three Months Ended March 31,				Six Months Ended March 31,
(In millions)	2019		2018		2019		2018
Operating Revenues:
Utility	$	180.4	$	218.3	$	313.9	$	339.1
Total Operating Revenues		180.4		218.3		313.9		339.1
Operating Expenses:
Utility
Natural gas		41.1		78.5		100.6		127.5
Operation and maintenance		33.4		35.2		67.8		68.0
Depreciation and amortization		13.7		13.1		27.3		25.9
Taxes, other than income taxes		12.6		14.4		21.5		22.6
Total Operating Expenses		100.8		141.2		217.2		244.0
Operating Income		79.6		77.1		96.7		95.1
Other Income, Net		1.5		1.6		3.3		3.0
Interest Charges:
Interest on long-term debt		4.4		3.5		8.0		6.4
Other interest charges		1.0		0.9		2.5		2.0
Total Interest Charges		5.4		4.4		10.5		8.4
Income Before Income Taxes		75.7		74.3		89.5		89.7
Income Tax Expense		19.0		18.7		22.5		83.7
Net Income	$	56.7	$	55.6	$	67.0	$	6.0

See the accompanying Notes to Financial Statements.

15

SPIRE ALABAMA INC.

CONDENSED BALANCE SHEETS

(UNAUDITED)

	March 31,			September 30,			March 31,
(Dollars in millions, except per share amounts)	2019			2018			2018
ASSETS
Utility Plant	$	2,032.5		$	1,964.3		$	1,885.4
Less: Accumulated depreciation and amortization		852.8			830.2			803.9
Net Utility Plant		1,179.7			1,134.1			1,081.5
Current Assets:
Cash and cash equivalents		0.1			—			—
Accounts receivable:
Utility		69.8			39.6			64.1
Associated companies		0.1			0.5			0.1
Other		8.4			8.5			6.4
Allowance for doubtful accounts		(3.8	)		(3.9	)		(2.7	)
Inventories:
Natural gas		30.1			33.9			26.2
Materials and supplies		7.8			7.8			7.8
Regulatory assets		30.4			26.2			32.1
Prepayments		3.9			6.0			3.6
Other		0.2			2.4			2.0
Total Current Assets		147.0			121.0			139.6
Deferred Charges and Other Assets:
Regulatory assets		198.9			201.5			198.9
Deferred income taxes		79.3			101.8			100.3
Other		58.9			57.8			57.9
Total Deferred Charges and Other Assets		337.1			361.1			357.1
Total Assets	$	1,663.8		$	1,616.2		$	1,578.2

16

SPIRE ALABAMA INC.

CONDENSED BALANCE SHEETS (Continued)

(UNAUDITED)

	March 31,		September 30,		March 31,
	2019		2018		2018
CAPITALIZATION AND LIABILITIES
Capitalization:
Paid-in capital and common stock (par value $0.01 per share;    3.0 million shares authorized; 2.0 million shares issued and    outstanding)	$	370.9	$	390.9	$	390.9
Retained earnings		467.8		417.8		437.5
Total Shareholder's Equity		838.7		808.7		828.4
Long-term debt (less current portion)		372.1		322.6		322.5
Total Capitalization		1,210.8		1,131.3		1,150.9
Current Liabilities:
Current portion of long-term debt		40.0		—		—
Notes payable – associated companies		73.7		142.5		82.3
Accounts payable		54.6		48.4		42.9
Accounts payable – associated companies		3.1		2.1		1.5
Advance customer billings		5.3		13.1		7.9
Wages and compensation accrued		5.3		6.7		5.3
Customer deposits		20.5		18.6		19.0
Interest accrued		5.4		3.9		4.1
Taxes accrued		21.2		28.3		21.9
Regulatory liabilities		6.1		7.6		10.8
Other		4.6		3.2		2.4
Total Current Liabilities		239.8		274.4		198.1
Deferred Credits and Other Liabilities:
Pension and postretirement benefit costs		37.4		35.0		55.3
Asset retirement obligations		138.6		135.7		131.1
Regulatory liabilities		30.5		31.3		35.0
Other		6.7		8.5		7.8
Total Deferred Credits and Other Liabilities		213.2		210.5		229.2
Commitments and Contingencies (Note 11)
Total Capitalization and Liabilities	$	1,663.8	$	1,616.2	$	1,578.2

See the accompanying Notes to Financial Statements.

17

SPIRE ALABAMA INC.

CONDENSED STATEMENTS OF SHAREHOLDER’S EQUITY

(UNAUDITED)

	Common Stock Outstanding				Paid-in			Retained
(Dollars in millions)	Shares		Par		Capital			Earnings			Total
Balance at September 30, 2017		1,972,052	$	—	$	420.9		$	446.5		$	867.4
Net loss		—		—		—			(49.6	)		(49.6	)
Dividends declared		—		—		—			(7.5	)		(7.5	)
Balance at December 31, 2017		1,972,052	$	—	$	420.9		$	389.4		$	810.3
Net income		—		—		—			55.6			55.6
Return of capital to Spire		—		—		(30.0	)		—			(30.0	)
Dividends declared		—		—		—			(7.5	)		(7.5	)
Balance at March 31, 2018		1,972,052	$	—	$	390.9		$	437.5		$	828.4
Balance at September 30, 2018		1,972,052	$	—	$	390.9		$	417.8		$	808.7
Net income		—		—		—			10.3			10.3
Dividends declared		—		—		—			(8.5	)		(8.5	)
Balance at December 31, 2018		1,972,052	$	—	$	390.9		$	419.6		$	810.5
Net income		—		—		—			56.7			56.7
Return of capital to Spire		—		—		(20.0	)		—			(20.0	)
Dividends declared		—		—		—			(8.5	)		(8.5	)
Balance at March 31, 2019		1,972,052	$	—	$	370.9		$	467.8		$	838.7

See the accompanying Notes to Financial Statements.

18

SPIRE ALABAMA INC.

CONDENSED STATEMENTS OF CASH FLOWS

(UNAUDITED)

	Six Months Ended March 31,
(In millions)	2019			2018
Operating Activities:
Net Income	$	67.0		$	6.0
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization		27.3			25.9
Deferred income taxes and investment tax credits		22.5			83.7
Changes in assets and liabilities:
Accounts receivable		(33.5	)		(38.6	)
Inventories		3.7			6.4
Regulatory assets and liabilities		0.6			34.6
Accounts payable		4.0			0.3
Advance customer billings		(7.8	)		(10.6	)
Taxes accrued		(7.1	)		(1.5	)
Other assets and liabilities		8.9			4.3
Other		(2.4	)		(0.5	)
Net cash provided by operating activities		83.2			110.0
Investing Activities:
Capital expenditures		(65.7	)		(51.8	)
Other		(1.1	)		(0.4	)
Net cash used in investing activities		(66.8	)		(52.2	)
Financing Activities:
Issuance of long-term debt		90.0			75.0
Repayments to Spire, net		(68.8	)		(87.6	)
Return of capital to Spire		(20.0	)		(30.0	)
Dividends paid		(17.0	)		(15.0	)
Other		(0.5	)		(0.3	)
Net cash used in financing activities		(16.3	)		(57.9	)
Net Increase (Decrease) in Cash and Cash Equivalents		0.1			(0.1	)
Cash and Cash Equivalents at Beginning of Period		—			0.1
Cash and Cash Equivalents at End of Period	$	0.1		$	—
Supplemental disclosure of cash paid for:
Interest, net of amounts capitalized	$	(8.7	)	$	(7.0	)
Income taxes		—			—

See the accompanying Notes to Financial Statements.

19

SPIRE INC., SPIRE MISSOURI INC. AND SPIRE ALABAMA INC.

NOTES TO FINANCIAL STATEMENTS

(UNAUDITED)

(Dollars in millions, except per share amounts)

1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

BASIS OF PRESENTATION – These notes are an integral part of the accompanying unaudited financial statements of Spire Inc. (“Spire” or the “Company”) presented on a consolidated basis, Spire Missouri Inc. (“Spire Missouri” or the “Missouri Utilities”) and Spire Alabama Inc. (“Spire Alabama”). Spire Missouri and Spire Alabama are wholly owned subsidiaries of Spire. Spire Missouri, Spire Alabama and the subsidiaries of Spire EnergySouth Inc. (“Spire EnergySouth”) are collectively referred to as the “Utilities.” The subsidiaries of Spire EnergySouth are Spire Gulf Inc. and Spire Mississippi Inc.

The accompanying unaudited financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information with the instructions to Form 10-Q and Rule 10-01 of Regulation S‑X. Accordingly, they do not include all the disclosures required for complete financial statements. In the opinion of management, the accompanying unaudited financial statements include all adjustments (consisting of only normal recurring adjustments) necessary for the fair presentation of the results of operations for the periods presented. This Form 10-Q should be read in conjunction with the Notes to Financial Statements contained in Spire’s, Spire Missouri’s and Spire Alabama’s combined Annual Report on Form 10-K for the fiscal year ended September 30, 2018.

The consolidated financial position, results of operations, and cash flows of Spire include the accounts of the Company and all its subsidiaries. Transactions and balances between consolidated entities have been eliminated from the consolidated financial statements of Spire. In compliance with GAAP, transactions between Spire Missouri and Spire Alabama and their affiliates, as well as intercompany balances on their balance sheets, have not been eliminated from their separate financial statements.

NATURE OF OPERATIONS – Spire has two reportable segments: Gas Utility and Gas Marketing. The Gas Utility segment consists of the regulated natural gas distribution operations of the Company and is the core business segment of Spire in terms of revenue and earnings. The Gas Utility segment is comprised of the operations of: the Missouri Utilities, serving St. Louis and eastern Missouri (“Spire Missouri East”) and Kansas City and western Missouri (“Spire Missouri West”); Spire Alabama, serving central and northern Alabama; and the subsidiaries of Spire EnergySouth, serving southern Alabama and south-central Mississippi. The Gas Marketing segment includes Spire’s primary gas-related business, Spire Marketing Inc. (“Spire Marketing”), which provides non-regulated natural gas services. The activities of other subsidiaries are reported as Other and are described in Note 10, Information by Operating Segment. Spire Missouri and Spire Alabama each have a single reportable segment.

Nearly all the Company’s earnings are derived from its Gas Utility segment. Due to the seasonal nature of the Utilities’ business and the Spire Missouri rate design, earnings are typically concentrated during the heating season of November through April each fiscal year. As a result, the interim statements of income for Spire, Spire Missouri and Spire Alabama are not necessarily indicative of annual results or representative of succeeding quarters of the fiscal year.

20

DERIVATIVES – In the course of their business, certain subsidiaries of Spireenter into commitments associated with the purchase or sale of natural gas. Certain of their derivative natural gas contracts are designated as normal purchases or normal sales and, as such, are excluded from the scope of Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) Topic 815, Derivatives and Hedging. Those contracts are accounted for as executory contracts and recorded on an accrual basis. Revenues and expenses from such contracts are recorded using a gross presentation. Contracts not designated as normal purchases or normal sales are recorded as derivatives with changes in fair value recognized in earnings in the periods prior to physical delivery. Certain of Spire Marketing’s wholesale purchase and sale transactions are classified as trading activities for financial reporting purposes. Under GAAP, revenues and expenses associated with trading activities are presented on a net basis in Gas Marketing operating revenues (or expenses, if negative) in the Condensed Consolidated Statements of Income. This net presentation has no effect on operating income or net income.

REGULATED OPERATIONS – The Utilities account for their regulated operations in accordance with FASB ASC Topic 980, Regulated Operations. This topic sets forth the application of GAAP for those companies whose rates are established by or are subject to approval by an independent third-party regulator. The provisions of this accounting guidance require, among other things, that financial statements of a regulated enterprise reflect the actions of regulators, where appropriate. These actions may result in the recognition of revenues and expenses in time periods that are different than non-regulated enterprises. When this occurs, costs are deferred as assets in the balance sheet (regulatory assets) and recorded as expenses when those amounts are reflected in rates. In addition, regulators can impose liabilities upon a regulated company for amounts previously collected from customers and for recovery of costs that are expected to be incurred in the future (regulatory liabilities). Management believes that the current regulatory environment supports the continued use of these regulatory accounting principles and that all regulatory assets and regulatory liabilities are recoverable or refundable through the regulatory process.

As authorized by the Missouri Public Service Commission (“MoPSC”), the Mississippi Public Service Commission (“MSPSC”) and the Alabama Public Service Commission (“APSC”), the Purchased Gas Adjustment (“PGA”) clauses and Gas Supply Adjustment (“GSA”) riders allow the Utilities to pass through to customers the cost of purchased gas supplies. Regulatory assets and liabilities related to the PGA clauses and the GSA riders are both labeled Unamortized Purchased Gas Adjustments herein. See additional information about regulatory assets and liabilities in Note 4, Regulatory Matters.

TRANSACTIONS WITH AFFILIATES – Transactions between affiliates of the Company have been eliminated from the consolidated statements of Spire. Spire Missouri and Spire Alabama borrowed funds from the Company and incurred related interest, as reflected in their separate financial statements, and they participated in normal intercompany shared services transactions. In addition, Spire Missouri’s other transactions with affiliates included:

	Three Months Ended March 31,				Six Months Ended March 31,
	2019		2018		2019		2018
Purchases of natural gas from Spire Marketing	$	29.2	$	19.3	$	69.0	$	41.6
Sales of natural gas to Spire Marketing		—		0.2		1.4		0.3
Transportation services received from Spire NGL Inc.		0.2		0.2		0.5		0.5

ACCRUED CAPITAL EXPENDITURES – Accrued capital expenditures, shown in the following table, are excluded from capital expenditures in the statements of cash flows until paid.

	March 31,		September 30,		March 31,
	2019		2018		2018
Spire	$	63.6	$	62.1	$	29.1
Spire Missouri		19.0		36.7		17.9
Spire Alabama		12.1		8.9		7.0

NEW ACCOUNTING PRONOUNCEMENTS – Spire, Spire Missouri and Spire Alabama adopted the guidance in Accounting Standards Update (“ASU”) No. 2014-09, Revenue from Contracts with Customers, and related

21

amendments (collectively, “ASC 606”), in the first quarter of fiscal year 2019 using the modified retrospective method applied to all contracts at October 1, 2018. The core principle of ASC 606 is that revenue should be recognized to depict the transfer of control of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. Under the new standard, an entity must identify the performance obligations in a contract, determine the transaction price and allocate the price to specific performance obligations to recognize revenue when the obligation is completed.In addition, ASC 606 requires disclosure of the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers. The adoption of ASC 606 did not result in significant changes to how Spire, Spire Missouri and Spire Alabama recognize revenue, and therefore, no cumulative effect adjustment to the opening balance of retained earnings was required, and there was no significant impact to financial results after adoption. The adoption did result in changes to the disclosures about revenue, which are included inNote 2, Revenue. Some revenue arrangements, such as alternative revenue programs and certain derivative contracts, are excluded from the scope of ASC 606 and, therefore, are presented separately in disclosures.

Also effective October 1, 2018, Spire, Spire Missouri and Spire Alabama adopted ASU No. 2017-07, Compensation – Retirement Benefits: Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost, with no material impact on interim or annual financial statements. The amended guidance requires that the service cost component of net periodic pension and postretirement benefit costs be presented within the same line item in the income statement as other compensation costs (except for the amount being capitalized), while other components are to be presented outside the subtotal of operating income and are no longer eligible for capitalization (e.g., as part of utility plant). The amended guidance is applied retrospectively for income statement presentation and prospectively for capitalization. The Company, Spire Missouri and Spire Alabama elected the practical expedient permitting the use of the amounts disclosed in its pension and other postretirement benefit plan note for the prior comparative periods as the estimation basis for applying the retrospective presentation requirements. Accordingly, for the three months ended March 31, 2018, the Company, Spire Missouri and Spire Alabama reclassified net benefit (income) costs of $8.3, $9.5 and $(1.1), respectively, from “operation and maintenance” to “other income, net” or “other income (expense), net.” The corresponding amounts for the six months ended March 31, 2018 were $7.2, $9.7 and $(2.1), respectively. The corresponding annual amounts to be reclassified for the years ended September 30, 2018, 2017 and 2016 are $14.4, $19.2 and $9.6 for the Company, respectively, $17.2, $17.2 and $11.2 for Spire Missouri, respectively, and $(2.0), $2.2 and $(1.6) for Spire Alabama, respectively. For Spire Missouri, Spire Alabama, and the Company’s other rate-regulated entities, all components of net benefit cost have historically been recovered from customers as a component of utility plant and will continue to be recovered in the same manner over the depreciable lives of the related plant assets; therefore, for those entities, the components that are no longer eligible to be capitalized as a component of plant under GAAP will be reported as regulatory assets.

Effective January 1, 2019, the Company, Spire Missouri and Spire Alabama adopted ASU No. 2018-15, Intangibles – Goodwill and Other – Internal-Use Software: Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract. Previous GAAP did not specifically address the accounting for implementation costs of a hosting arrangement that is a service contract. The amendments in this update clarify that accounting and align the accounting for implementation costs for hosting arrangements, regardless of whether they convey a license to the hosted software. As a result, certain categories of implementation costs that previously would have been charged to expense as incurred are now capitalized and amortized over the term of the arrangement. The new guidance is being applied prospectively to implementation costs incurred after adoption. Related amounts capitalized were not material.

22

In February 2016, the FASB issued ASU No. 2016-02, Leases. The new standard requires lessees to recognize a right-of-use asset and lease liability for almost all lease contracts based on the present value of lease payments. There is an exemption for short-term leases. The ASU provides new guidelines for identifying and classifying a lease, and classification affects the pattern and income statement line item for the related expense. ASU Nos. 2018-01, 2018-10, 2018-11, 2018-20 and 2019-01subsequently amended several aspects of the new lease guidance, including providing an additional practical expedient, an additional transition method, and clarification of the related transition and accounting for land easements. The updates(collectively, “ASC 842”), may be applied using a modified retrospective transition method for leases existing at, or entered into after, the beginning of (1) the earliest comparative period presented in the financial statements or (2) the period of adoption. ASC 842 is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. The Company, Spire Missouri and Spire Alabama are currently assessing the impacts of adopting ASC 842 in the first quarter of fiscal 2020. They expect to elect all available practical expedients and apply the second transition method.

In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments – Credit Losses: Measurement of Credit Losses on Financial Instruments, which was subsequently amended by ASU No. 2018-19 in November 2018. The standard introduces new guidance for the accounting for credit losses on instruments within its scope, including trade receivables. It is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years, and may be adopted a year earlier. The new guidance will be initially applied through a cumulative-effect adjustment to retained earnings as of the beginning of the period of adoption. The Company, Spire Missouri and Spire Alabama are currently assessing the timing and impacts of adopting this standard, which must be adopted by the first quarter of fiscal 2021.

In August 2017, the FASB issued ASU No. 2017-12, Derivatives and Hedging: Targeted Improvements to Accounting for Hedging Activities. The amendments in this ASU more closely align the results of hedge accounting with risk management activities through changes to both the designation and measurement guidance for qualifying hedging relationships and the presentation of hedge results in the financial statements. They are effective for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years, and early application is permitted. The Company, Spire Missouri and Spire Alabama are currently assessing the effects of this new guidance, as well as the timing of adoption.

2. REVENUE

The following tables show revenue disaggregated by source and customer type.

	Three Months Ended March 31, 2019			Six Months Ended March 31, 2019
Spire
Gas Utility:
Residential	$	551.3		$	944.9
Commercial & industrial		185.9			316.2
Transportation		31.3			60.8
Off-system & other incentive		11.5			26.4
Other customer revenue		10.9			23.6
Total revenue from contracts with customers		790.9			1,371.9
Changes in accrued revenue under alternative revenue programs		(14.1	)		(19.9	)
Total Gas Utility operating revenues		776.8			1,352.0
Gas Marketing:
Revenue from contracts with retail customers		25.5			51.3
Revenue from wholesale derivative contracts		—			—
Total Gas Marketing operating revenues		25.5			51.3
Other		4.3			9.7
Total before eliminations		806.6			1,413.0
Intersegment eliminations (see Note 10, Information by Operating Segment)		(3.1	)		(7.5	)
Total Operating Revenues	$	803.5		$	1,405.5

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	Three Months Ended March 31, 2019			Six Months Ended March 31, 2019
Spire Missouri
Residential	$	410.9		$	713.0
Commercial & industrial		129.2			218.3
Transportation		9.9			18.9
Off-system & other incentive		11.5			26.4
Other customer revenue		4.2			6.8
Total revenue from contracts with customers		565.7			983.4
Changes in accrued revenue under alternative revenue programs		(9.1	)		(13.6	)
Total Operating Revenues	$	556.6		$	969.8

Spire Alabama
Residential	$	116.9		$	192.3
Commercial & industrial		44.1			75.5
Transportation		18.8			37.0
Other customer revenue		5.3			14.9
Total revenue from contracts with customers		185.1			319.7
Changes in accrued revenue under alternative revenue programs		(4.7	)		(5.8	)
Total Operating Revenues	$	180.4		$	313.9

The Utilities sell natural gas to residential and other customers. The sale of natural gas is governed by the various state utility commissions, which set rates, charges, and terms and conditions of service, collectively included in a “tariff.” The performance obligation, which relates to the promise to provide natural gas, is satisfied over time as the customer simultaneously receives and consumes the natural gas, and revenue is recognized accordingly.

The Utilities’ transportation revenue relates to the promise to transport the specified quantities of natural gas at tariff rates. This performance obligation is satisfied over time as the gas is transported, and revenue is recognized as invoiced monthly.

The Utilities have alternative revenue programs (“ARPs”), which represent an agreement between the utility and its regulator, currently consisting of decoupling mechanisms (also known as weather normalization adjustments) and incentive programs (primarily Alabama’s Cost Control Measure). When the criteria to recognize additional (or reduced) revenue from ARPs have been met, the Utilities establish a regulatory asset (or liability). When amounts previously recognized for ARPs are billed, the Utilities reduce the regulatory asset (or liability) and increase (or decrease) accounts receivable. Billed amounts, which are part of the overall tariff paid by customers, are included in revenue from contracts with customers, while the change in the related regulatory asset or liability is presented as revenue from ARPs. Depending on whether the beginning accrued ARP balance was a regulatory asset or liability and depending on the size and direction of the current period accrual, the amount presented as revenue from ARPs could be negative.

The Utilities read meters and bill customers on monthly cycles. The Missouri Utilities, Spire Gulf and Spire Mississippi record their gas utility revenues from gas sales and transportation services on an accrual basis that includes estimated amounts for gas delivered but not yet billed. The accruals for unbilled revenues are reversed in the subsequent accounting period when meters are actually read and customers are billed. Spire Alabama records natural gas distribution revenues in accordance with the tariff established by the APSC. Unbilled revenue is accrued in an amount equal to the related gas cost, as profit margin is not considered earned until billed. Spire’s other subsidiaries, including Spire Marketing, record revenues when earned, as the product is delivered or as services are performed.

Gas Marketing’s contracts are derivatives. The wholesale contracts (with producers, municipalities, and utility companies) are subject to derivative accounting. The retail contracts (with large commercial and industrial customers) are designated as “normal purchase, normal sale” arrangements and are therefore accounted for as revenue from contracts with customers. The performance obligation is satisfied over time by the transfer of control of natural gas to the customer, and revenue is recognized as invoiced monthly.

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Payments are generally required within 30 days of billing, and contracts generally do not have a significant financing component. Spire’s revenues are not subject to significant returns, refunds, or warranty obligations.

Spire, Spire Missouri, and Spire Alabama have elected to apply a “right to invoice” practical expedient, recognizing revenue for volumes delivered for which they have a right to invoice, as long as that amount corresponds with the value to the customer. Disclosures about remaining performance obligations are not required because either contracts have an original expected duration of one year or less, or revenue is recognized under the right to invoice practical expedient, or both.

Sales taxes imposed on applicable Spire Alabama and Spire Missouri sales are billed to customers. These amounts are not recorded in the statements of income but are recorded as tax collections payable and included in the “Other” line of the Current Liabilities section of the balance sheets.

Gross receipts taxes associated with the Company’s natural gas utility services are imposed on the Company, Spire Missouri, and Spire Alabama and billed to its customers. The revenue and expense amounts are recorded gross in the “Operating Revenues” and “Taxes, other than income taxes” lines, respectively, in the statements of income. The following table presents gross receipts taxes recorded as revenues:

	Three Months Ended March 31,				Six Months Ended March 31,
	2019		2018		2019		2018
Spire	$	43.5	$	43.6	$	69.4	$	66.7
Spire Missouri		32.1		30.6		50.6		46.8
Spire Alabama		9.6		11.6		15.9		17.2

3. EARNINGS PER SHARE

	Three Months Ended March 31,				Six Months Ended March 31,
	2019		2018		2019		2018
Basic Earnings Per Share:
Net Income	$	154.6	$	98.2	$	221.9	$	214.2
Less: Income allocated to participating securities		0.3		0.2		0.5		0.5
Income Available to Common Shareholders	$	154.3	$	98.0	$	221.4	$	213.7
Weighted Average Shares Outstanding (in millions)		50.6		48.2		50.6		48.2
Basic Earnings Per Share	$	3.05	$	2.03	$	4.37	$	4.43
Diluted Earnings Per Share:
Net Income	$	154.6	$	98.2	$	221.9	$	214.2
Less: Income allocated to participating securities		0.3		0.2		0.5		0.5
Income Available to Common Shareholders	$	154.3	$	98.0	$	221.4	$	213.7
Weighted Average Shares Outstanding (in millions)		50.6		48.2		50.6		48.2
Dilutive Effect of Restricted Stock and Restricted Stock Units (in millions)*		0.2		0.2		0.2		0.2
Weighted Average Diluted Shares (in millions)		50.8		48.4		50.8		48.4
Diluted Earnings Per Share	$	3.04	$	2.03	$	4.36	$	4.42
* Calculation excludes certain outstanding shares (shown in millions by period    at the right) attributable to stock units subject to performance or market    conditions and restricted stock, which could have a dilutive effect in the future		0.3		0.4		0.3		0.4

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4. REGULATORY MATTERS

As explained in Note 1, Summary of Significant Accounting Policies, the Utilities account for regulated operations in accordance with FASB ASC Topic 980, Regulated Operations. The following regulatory assets and regulatory liabilities were reflected in the balance sheets of the Company, Spire Missouri and Spire Alabama as of March 31, 2019, September 30, 2018, and March 31, 2018.

	March 31,		September 30,		March 31,
Spire	2019		2018		2018
Regulatory Assets:
Current:
Pension and postretirement benefit costs	$	30.2	$	30.2	$	43.0
Unamortized purchased gas adjustments		19.3		8.2		32.6
Other		25.8		34.4		22.1
Total Current Regulatory Assets		75.3		72.8		97.7
Noncurrent:
Pension and postretirement benefit costs		345.8		364.9		358.2
Cost of removal		134.6		133.4		125.0
Future income taxes due from customers		102.2		96.3		113.0
Energy efficiency		32.0		32.8		31.3
Other		45.3		42.4		46.1
Total Noncurrent Regulatory Assets		659.9		669.8		673.6
Total Regulatory Assets	$	735.2	$	742.6	$	771.3
Regulatory Liabilities:
Current:
Pension and postretirement benefit costs	$	5.8	$	2.2	$	2.2
Unamortized purchased gas adjustments		3.4		2.9		1.5
Other		26.1		30.6		18.5
Total Current Regulatory Liabilities		35.3		35.7		22.2
Noncurrent:
Deferred taxes due to customers		155.7		178.3		170.7
Pension and postretirement benefit costs		115.3		27.8		30.8
Accrued cost of removal		53.7		63.6		71.0
Unamortized purchased gas adjustments		75.7		4.7		50.3
Other		30.9		80.2		30.3
Total Noncurrent Regulatory Liabilities		431.3		354.6		353.1
Total Regulatory Liabilities	$	466.6	$	390.3	$	375.3

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	March 31,		September 30,		March 31,
Spire Missouri	2019		2018		2018
Regulatory Assets:
Current:
Pension and postretirement benefit costs	$	21.9	$	21.9	$	34.9
Unamortized purchased gas adjustments		0.6		1.0		13.5
Other		7.5		7.8		3.3
Total Current Regulatory Assets		30.0		30.7		51.7
Noncurrent:
Future income taxes due from customers		99.0		94.4		111.4
Pension and postretirement benefit costs		277.9		292.5		279.0
Energy efficiency		32.0		32.8		31.3
Other		24.7		21.4		24.9
Total Noncurrent Regulatory Assets		433.6		441.1		446.6
Total Regulatory Assets	$	463.6	$	471.8	$	498.3
Regulatory Liabilities:
Current:
Pension and postretirement benefit costs	$	3.6	$	—	$	—
Unamortized purchased gas adjustments		2.7		1.9		—
Other		17.9		14.8		2.7
Total Current Regulatory Liabilities		24.2		16.7		2.7
Noncurrent:
Deferred taxes due to customers		138.3		161.1		152.6
Pension and postretirement benefit costs		79.4		—		—
Accrued cost of removal		26.8		39.8		48.7
Unamortized purchased gas adjustments		75.7		4.7		50.3
Other		24.9		69.3		20.9
Total Noncurrent Regulatory Liabilities		345.1		274.9		272.5
Total Regulatory Liabilities	$	369.3	$	291.6	$	275.2

	March 31,		September 30,		March 31,
Spire Alabama	2019		2018		2018
Regulatory Assets:
Current:
Pension and postretirement benefit costs	$	7.3	$	7.3	$	7.1
Unamortized purchased gas adjustments		18.0		6.4		19.0
Other		5.1		12.5		6.0
Total Current Regulatory Assets		30.4		26.2		32.1
Noncurrent:
Pension and postretirement benefit costs		61.1		64.8		71.2
Cost of removal		134.6		133.4		125.0
Other		3.2		3.3		2.7
Total Noncurrent Regulatory Assets		198.9		201.5		198.9
Total Regulatory Assets	$	229.3	$	227.7	$	231.0
Regulatory Liabilities:
Current:
Pension and postretirement benefit costs	$	2.2	$	2.2	$	2.2
Other		3.9		5.4		8.6
Total Current Regulatory Liabilities		6.1		7.6		10.8
Noncurrent:
Pension and postretirement benefit costs		26.5		27.8		30.8
Other		4.0		3.5		4.2
Total Noncurrent Regulatory Liabilities		30.5		31.3		35.0
Total Regulatory Liabilities	$	36.6	$	38.9	$	45.8

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A portion of the Company’s and Spire Missouri’s regulatory assets are not earning a return, as shown in the table below:

	March 31,		September 30,		March 31,
	2019		2018		2018
Spire
Pension and postretirement benefit costs	$	144.7	$	148.4	$	185.8
Future income taxes due from customers		102.2		96.3		113.0
Other		14.8		15.1		11.0
Total Regulatory Assets Not Earning a Return	$	261.7	$	259.8	$	309.8
Spire Missouri
Pension and postretirement benefit costs	$	144.7	$	148.4	$	185.8
Future income taxes due from customers		99.0		94.4		111.4
Other		14.8		15.1		11.0
Total Regulatory Assets Not Earning a Return	$	258.5	$	257.9	$	308.2

Like all the Company’s regulatory assets, these regulatory assets are expected to be recovered from customers in future rates. The recovery period for the future income taxes due from customers and pension and other postretirement benefit costs could be 20 years or longer, based on current Internal Revenue Service (“IRS”) guidelines and average remaining service life of active participants, respectively. The other items not earning a return are expected to be recovered over a period not to exceed 15 years, consistent with precedent set by the MoPSC. Spire Alabama does not have any regulatory assets that are not earning a return.

On March 7, 2018, the MoPSC issued its order in two general rate cases, approving new tariffs that became effective on April 19, 2018. On April 25, 2018, Spire Missouri filed an appeal of the MoPSC’s order related to the disallowance of certain pension costs incurred prior to 1997 ($28.8), real estate sold in 2014 ($1.8), and rate case expenses ($0.9) to Missouri’s Southern District Court of Appeals. On March 15, 2019, the appeal was denied by the Southern District, and Spire Missouri has requested review by the Missouri Supreme Court.

In September 2016 and February 2017, Spire Missouri filed Infrastructure System Replacement Surcharge (“ISRS”) cases for both Spire Missouri East and Spire Missouri West (the “2016/2017 ISRS Cases”). The Missouri Office of the Public Counsel (“OPC”) appealed the MoPSC’s decisions approving these cases to Missouri’s Western District Court of Appeals, arguing that they contained ISRS-ineligible costs. In November 2017, the appellate court reversed the MoPSC’s decision in the 2016/2017 ISRS Cases and remanded the case back to the MoPSC. In June 2018, Spire Missouri filed to establish new ISRS rates in both its East and West divisions (the “2018 ISRS Cases”). In September 2018, the MoPSC issued a report and order finding that Spire Missouri’s ISRS petitions in the 2016/2017 ISRS Cases contained ISRS costs related to the replacement of plastic pipe components that should be removed from the requested revenue requirement; however, the MoPSC ordered that no adjustment to Spire Missouri’s revenues was necessary as the ISRS revenues approved in these cases had been rebased as part of its last general rate cases. Also in September 2018, the MoPSC issued a report and order in the 2018 ISRS Cases stating additional evidence was required to support all investments included in the Spire Missouri’s applications in order to support the recovery of costs related to the replacement of plastic pipe components and approved rates in the 2018 ISRS Cases providing annual revenues of $2.6 for Spire Missouri East and $5.4 for Spire Missouri West. Spire is appealing the removal of costs related to plastic in all cases in the Western District Court. On January 14, 2019, Spire Missouri refiled requests with additional information for approximately $3.2 of the ISRS revenues that were removed by the MoPSC in the 2018 ISRS Cases and filed new ISRS applications for both its East and West service territories. After updating the pro-forma months of December 2018 and January 2019, Spire Missouri is requesting approval of ISRS revenues of $7.4 for Spire Missouri East and $7.4 for Spire Missouri West related to investments made from July 1, 2018, through January 31, 2019. Evidentiary hearings were held in the 2019 cases in April 2019, and Spire Missouri expects an order from the MoPSC prior to the effective date. Per Missouri statute, new rates must become effective within 120 days of the application, or by May 14, 2019.

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As part of the annual update for Rate Stabilization and Equalization (“RSE”), on November 30, 2018, Spire Alabama filed an increase for rate year 2019 of $8.7, which became effective December 1, 2018.There was no RSE reduction for the January 31, 2019 quarterly point of test. At March 31, 2019, an estimated RSE reduction for the April 30, 2019 quarterly point of test of $3.3 was recorded to bring the expected rate of return on average common equity at the end of the year to within the allowed rate of return.

On January 25, 2019, the Federal Energy Regulatory Commission (“FERC”) approved the Company’s application to combine its two adjacent natural gas storage facilities in Wyoming into one FERC certificate with a market-based tariff. On February 13, 2019, Spire Storage filed a prior notice request pursuant to the FERC’s regulations and Spire Storage’s blanket certificate authority proposing to construct and operate 10.1 miles of dual 20-inch-diameter pipeline, one new pipeline interconnection with measurement equipment, and related facilities in Uinta County, Wyoming. If authorized by the FERC, the pipeline, interconnection and measurement facilities, will allow Spire Storage to enhance the link between its two storage facilities, provide new, bi-directional access to Kern River Gas Transmission Company’s mainline and afford enhanced access with other interstate pipelines. On April 26, 2019, FERC staff filed a protest stating that Spire Storage did not provide documentation of the project’s compliance with the National Historic Preservation Act. Under the FERC’s regulations, a protested prior notice filing will be treated like a traditional application under Section 7 of the Natural Gas Act unless the protest is withdrawn within 30 days from the date upon which protests are due.

Under the terms of the January 2017 Precedent Agreement between Spire STL Pipeline and Spire Missouri, if Spire STL Pipeline files with FERC to increase its initial recourse rate at any time before the pipeline’s in-service date, and if FERC approves such request in whole or in part, then Spire Missouri’s negotiated rate will automatically increase by the same percentage increase to the initial recourse rate, up to a maximum increase of two cents per dekatherm per day.

5. FINANCING ARRANGEMENTS AND LONG-TERM DEBT

Spire, Spire Missouri and Spire Alabama have a syndicated revolving credit facility pursuant to a loan agreement with 11 banks, expiring October 31, 2023. The loan agreement has an aggregate credit commitment of $975.0, including sublimits of $300.0 for Spire, $475.0 for Spire Missouri, and $200.0 for Spire Alabama. These sublimits may be reallocated from time to time among the three borrowers within the $975.0 aggregate commitment, with commitments fees applied for each borrower relative to its credit rating. Spire may use its line to provide for the funding needs of various subsidiaries. The agreement also contains financial covenants limiting each borrower’s consolidated total debt, including short-term debt, to no more than 70% of its total capitalization. As defined in the line of credit, on March 31, 2019, total debt was 54% of total capitalization for the consolidated Company, 47% for Spire Missouri, and 37% for Spire Alabama. There were no borrowings against this credit facility as of March 31, 2019, September 30, 2018, or March 31, 2018.

Spire has a commercial paper program (“CP Program”) pursuant to which Spire may issue short-term, unsecured commercial paper notes. Amounts available under the CP Program may be borrowed, repaid and re-borrowed from time to time, with the aggregate face or principal amount of the notes outstanding under the CP Program at any time not to exceed $975.0. The notes may have maturities of up to 365 days from date of issue.

Information about Spire’s consolidated short-term borrowings and about Spire Missouri’s and Spire Alabama’s borrowings from Spire is presented in the following table. As of March 31, 2019, $344.6 of Spire’s short-term borrowings were used to support lending to the Utilities.

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	Spire Commercial Paper Borrowings	Spire Missouri Borrowings from Spire	Spire Alabama Borrowings from Spire
Six Months Ended March 31, 2019
Weighted average borrowings outstanding	$598.3	$313.5	$117.3
Weighted average interest rate	2.8%	2.8%	2.8%
Range of borrowings outstanding	$482.5 – $689.3	$205.1 – $404.9	$43.8 – $169.2
As of March 31, 2019
Borrowings outstanding	$512.0	$232.9	$73.7
Weighted average interest rate	2.8%	2.8%	2.8%
As of September 30, 2018
Borrowings outstanding	$553.6	$345.3	$142.5
Weighted average interest rate	2.4%	2.3%	2.3%
As of March 31, 2018
Borrowings outstanding	$391.7	$175.8	$82.3
Weighted average interest rate	2.2%	2.2%	2.2%

The long-term debt agreements of Spire, Spire Missouri and Spire Alabama contain customary covenants and default provisions. As of March 31, 2019, there were no events of default under these covenants.

Interest expense shown on Spire’s consolidated statements of income and Spire Missouri’s statements of comprehensive income is net of the capitalized interest amounts shown in the following table.

	Three Months Ended March 31,				Six Months Ended March 31,
	2019		2018		2019		2018
Spire	$	1.4	$	0.6	$	2.6	$	1.0
Spire Missouri		0.4		0.2		0.9		0.4

In October 2018, the Company settled a $10.0 non-interest-bearing note. In December 2018, Spire Missouri entered into a new loan agreement providing for a term loan of $100.0, which was fully funded on December 3, 2018, and which matures on December 1, 2021, subject to optional prepayment by Spire Missouri. Borrowings under the loan agreement bear interest at a rate determined by reference to the London Interbank Offered Rate (LIBOR), plus a margin based on Spire Missouri’s senior debt rating as determined by Standard & Poor’s Rating Services or Moody’s Investors Services, Inc.

On January 15, 2019, Spire Alabama entered into the Second Supplement to Master Note Purchase Agreement with certain institutional investors. Pursuant to the terms of that supplement, Spire Alabama issued and sold to those institutional investors in a private placement $90.0 of 4.64% Series 2019A Senior Notes due January 15, 2049. The notes bear interest from the date of issuance, payable semi-annually on the 15th day of July and January of each year, commencing on July 15, 2019. The notes are senior unsecured obligations of Spire Alabama, rank equal in right to payment with all its other senior unsecured indebtedness, and have make-whole and par call options. Spire Alabama used the proceeds to repay short-term debt and for general corporate purposes.

6. FAIR VALUE OF FINANCIAL INSTRUMENTS

The carrying amounts and estimated fair values of financial instruments not measured at fair value on a recurring basis are shown in the following tables, classified according to the fair value hierarchy. There were no such instruments classified as Level 3 (significant unobservable inputs) as of March 31, 2019, September 30, 2018, or March 31, 2018.

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The carrying amounts of cash and cash equivalents and short-term debt approximate fair value due to the short maturity of these instruments. The fair values of long-term debt are estimated based on market prices for similar issues. Refer to Note 7, Fair Value Measurements, for information on financial instruments measured at fair value on a recurring basis.

					Classification of Estimated Fair Value
	Carrying Amount		Fair Value		Quoted Prices in Active Markets (Level 1)		Significant Observable Inputs (Level 2)
Spire
As of March 31, 2019
Cash and cash equivalents	$	11.1	$	11.1	$	11.1	$	—
Notes payable		512.0		512.0		—		512.0
Long-term debt, including current portion		2,256.9		2,319.9		—		2,319.9
As of September 30, 2018
Cash and cash equivalents	$	4.4	$	4.4	$	4.4	$	—
Notes payable		553.6		553.6		—		553.6
Long-term debt, including current portion		2,075.6		2,074.0		—		2,074.0
As of March 31, 2018
Cash and cash equivalents	$	17.8	$	17.8	$	17.8	$	—
Notes payable		391.7		391.7		—		391.7
Long-term debt, including current portion		2,179.4		2,241.3		—		2,241.3
Spire Missouri
As of March 31, 2019
Cash and cash equivalents	$	6.9	$	6.9	$	6.9	$	—
Notes payable – associated companies		232.9		232.9		—		232.9
Long-term debt, including current portion		974.7		1,036.9		—		1,036.9
As of September 30, 2018
Cash and cash equivalents	$	2.0	$	2.0	$	2.0	$	—
Notes payable – associated companies		345.3		345.3		—		345.3
Long-term debt, including current portion		874.4		906.6		—		906.6
As of March 31, 2018
Cash and cash equivalents	$	10.2	$	10.2	$	10.2	$	—
Notes payable – associated companies		175.8		175.8		—		175.8
Long-term debt, including current portion		974.0		1,033.6		—		1,033.6
Spire Alabama
As of March 31, 2019
Cash and cash equivalents	$	0.1	$	0.1	$	0.1	$	—
Notes payable – associated companies		73.7		73.7		—		73.7
Long-term debt, including current portion		412.1		423.8		—		423.8
As of September 30, 2018
Notes payable – associated companies	$	142.5	$	142.5	$	—	$	142.5
Long-term debt		322.6		321.7		—		321.7
As of March 31, 2018
Notes payable – associated companies	$	82.3	$	82.3	$	—	$	82.3
Long-term debt		322.5		332.7		—		332.7

7. FAIR VALUE MEASUREMENTS

The information presented below 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. The mutual funds included in Level 2 are valued based on the closing net asset value per unit.

31

Derivative instruments included in Level 1 are valued using quoted market prices on the New York Mercantile Exchange (“NYMEX”) or the Intercontinental Exchange (“ICE”). Derivative instruments classified in Level 2 include physical commodity 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. The Level 3 balances as ofMarch 31, 2019, September 30, 2018, andMarch 31, 2018, consisted of gas commodity contracts. 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. 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)		Significant Unobservable Inputs (Level 3)		Effects of Netting and Cash Margin Receivables /Payables			Total
As of March 31, 2019
ASSETS
Gas Utility:
U.S. stock/bond mutual funds	$	19.7	$	—	$	—	$	—		$	19.7
NYMEX/ICE natural gas contracts		2.5		—		—		(2.5	)		—
Gas Marketing:
NYMEX/ICE natural gas contracts		0.2		7.1		—		(4.3	)		3.0
Natural gas commodity contracts		—		30.4		—		(3.4	)		27.0
Other:
U.S. stock/bond mutual funds		11.9		—		—		—			11.9
Total	$	34.3	$	37.5	$	—	$	(10.2	)	$	61.6
LIABILITIES
Gas Marketing:
NYMEX/ICE natural gas contracts	$	0.4	$	4.1	$	-	$	(4.5	)	$	-
Natural gas commodity contracts		—		18.9		0.2		(3.5	)		15.6
Other:
Interest rate swaps		—		15.2		—		—			15.2
Total	$	0.4	$	38.2	$	0.2	$	(8.0	)	$	30.8

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	Quoted Prices in Active Markets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Effects of Netting and Cash Margin Receivables /Payables			Total
As of September 30, 2018
ASSETS
Gas Utility:
U.S. stock/bond mutual funds	$	20.3	$	—	$	—	$	—		$	20.3
NYMEX/ICE natural gas contracts		2.7		—		—		(2.7	)		—
Gas Marketing:
NYMEX/ICE natural gas contracts		0.2		4.0		—		(4.2	)		—
Natural gas commodity contracts		—		17.5		—		(1.5	)		16.0
Other:
U.S. stock/bond mutual funds		8.9		—		—		—			8.9
Interest rate swaps		—		3.0		—		—			3.0
Total	$	32.1	$	24.5	$	—	$	(8.4	)	$	48.2
LIABILITIES
Gas Utility:
NYMEX/ICE natural gas contracts	$	1.9	$	—	$	—	$	(1.9	)	$	—
Gas Marketing:
NYMEX/ICE natural gas contracts		0.9		10.5		—		(11.4	)		—
Natural gas commodity contracts		—		7.5		0.2		(1.5	)		6.2
Total	$	2.8	$	18.0	$	0.2	$	(14.8	)	$	6.2
As of March 31, 2018
ASSETS
Gas Utility:
U.S. stock/bond mutual funds	$	19.1	$	4.1	$	—	$	—		$	23.2
NYMEX/ICE natural gas contracts		0.1		—		—		(0.1	)		—
Gas Marketing:
NYMEX/ICE natural gas contracts		0.2		3.3		—		(3.5	)		—
Natural gas commodity contracts		—		7.4		0.1		(2.1	)		5.4
Other:
Interest rate swaps		—		1.0		—		—			1.0
Total	$	19.4	$	15.8	$	0.1	$	(5.7	)	$	29.6
LIABILITIES
Gas Utility:
NYMEX/ICE natural gas contracts	$	0.2	$	—	$	—	$	(0.2	)	$	—
Gas Marketing:
NYMEX/ICE natural gas contracts		0.6		9.8		—		(10.4	)		—
Natural gas commodity contracts		—		14.3		—		(2.1	)		12.2
Total	$	0.8	$	24.1	$	—	$	(12.7	)	$	12.2

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Spire Missouri

	Quoted Prices in Active Markets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Effects of Netting and Cash Margin Receivables /Payables			Total
As of March 31, 2019
ASSETS
U.S. stock/bond mutual funds	$	19.7	$	—	$	—	$	—		$	19.7
NYMEX/ICE natural gas contracts		2.5		—		—		(2.5	)		—
Total	$	22.2	$	—	$	—	$	(2.5	)	$	19.7
As of September 30, 2018
ASSETS
U.S. stock/bond mutual funds	$	20.3	$	—	$	—	$	—		$	20.3
NYMEX/ICE natural gas contracts		2.7		—		—		(2.7	)		—
Total	$	23.0	$	—	$	—	$	(2.7	)	$	20.3
LIABILITIES
NYMEX/ICE natural gas contracts	$	1.9	$	—	$	—	$	(1.9	)	$	—
As of March 31, 2018
ASSETS
U.S. stock/bond mutual funds	$	19.1	$	4.1	$	—	$	—		$	23.2
NYMEX/ICE natural gas contracts		0.1		—		—		(0.1	)		—
Total	$	19.2	$	4.1	$	—	$	(0.1	)	$	23.2
LIABILITIES
NYMEX/ICE natural gas contracts	$	0.2	$	—	$	—	$	(0.2	)	$	—

Spire Alabama

Spire Alabama occasionally utilizes a gasoline derivative program to stabilize the cost of fuel used in operations. As of March 31, 2019, September 30, 2018, and March 31, 2018, Spire Alabama had no outstanding derivative contracts.

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8. CONCENTRATIONS OF CREDIT RISK

Other than in Spire Marketing, Spire has no significant concentrations of credit risk.

A significant portion of Spire Marketing’s transactions are with (or are associated with) energy producers, utility companies, and pipelines. The concentration of transactions with these counterparties has the potential to affect the Company’s overall exposure to credit risk, either positively or negatively, in that each of these three groups may be affected similarly by changes in economic, industry, or other conditions. To manage this risk, as well as credit risk from significant counterparties in these and other industries, Spire Marketing has established procedures to determine the creditworthiness of its counterparties. These procedures include obtaining credit ratings and credit reports, analyzing counterparty financial statements to assess financial condition, and considering the industry environment in which the counterparty operates. This information is monitored on an ongoing basis. In some instances, Spire Marketing may require credit assurances such as prepayments, letters of credit, or parental guarantees. In addition, Spire Marketing may enter into netting arrangements to mitigate credit risk with counterparties in the energy industry with whom it conducts both sales and purchases of natural gas. Sales are typically made on an unsecured credit basis with payment due the month following delivery. Accounts receivable amounts are closely monitored and provisions for uncollectible amounts are accrued when losses are probable. Spire Marketing records accounts receivable, accounts payable, and prepayments for physical sales and purchases of natural gas on a gross basis. The amount included in its accounts receivable attributable to energy producers and their marketing affiliates totaled $18.1 at March 31, 2019 ($7.3 reflecting netting arrangements). Spire Marketing’s accounts receivable attributable to utility companies and their marketing affiliates totaled $94.8 at March 31, 2019 ($84.0 reflecting netting arrangements).

Spire Marketing also has concentrations of credit risk with pipeline companies associated with its natural gas receivable and with certain individually significant counterparties. At March 31, 2019, the amounts included in accounts receivable from its five largest counterparties (in terms of net accounts receivable exposure) totaled $31.5 ($27.3 reflecting netting arrangements). Four of these five counterparties are investment-grade rated companies. The fifth is not rated but is a subsidiary of an investment-grade rated company.

9. PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS

Pension Plans

Spire and the Utilities maintain pension plans for their employees.

The Missouri Utilities have non-contributory, defined benefit, trusteed forms of pension plans covering the majority of their employees. Plan assets consist primarily of corporate and United States (“U.S.”) government obligations and a growth segment consisting of exposure to equity markets, commodities, real estate and inflation-indexed securities, achieved through derivative instruments.

Spire Alabama has non-contributory, defined benefit, trusteed forms of pension plans covering the majority of its employees. Qualified plan assets are comprised of mutual and commingled funds consisting of U.S. equities with varying strategies, global equities, alternative investments, and fixed income investments.

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The net periodic pension cost included the following components:

	Three Months Ended March 31,						Six Months Ended March 31,
	2019			2018			2019			2018
Spire
Service cost – benefits earned during the period	$	4.9		$	5.2		$	9.7		$	10.4
Interest cost on projected benefit obligation*		7.0			6.9			14.1			13.8
Expected return on plan assets*		(8.9	)		(9.5	)		(18.0	)		(19.2	)
Amortization of prior service credit*		(0.3	)		(0.2	)		(0.6	)		(0.5	)
Amortization of actuarial loss*		2.3			2.9			4.6			6.0
Loss on lump-sum settlements*		—			9.4			—			9.4
Subtotal		5.0			14.7			9.8			19.9
Regulatory adjustment		9.8			24.0			19.7			28.3
Net pension cost	$	14.8		$	38.7		$	29.5		$	48.2
Spire Missouri
Service cost – benefits earned during the period	$	3.1		$	3.2		$	6.2		$	6.5
Interest cost on projected benefit obligation*		4.9			4.9			9.9			9.8
Expected return on plan assets*		(6.3	)		(7.0	)		(12.7	)		(14.2	)
Amortization of prior service cost*		0.2			0.2			0.4			0.4
Amortization of actuarial loss*		2.2			2.5			4.3			5.1
Loss on lump-sum settlements*		—			9.4			—			9.4
Subtotal		4.1			13.2			8.1			17.0
Regulatory adjustment		7.9			21.9			15.9			24.3
Net pension cost	$	12.0		$	35.1		$	24.0		$	41.3
Spire Alabama
Service cost – benefits earned during the period	$	1.6		$	1.7		$	3.1		$	3.3
Interest cost on projected benefit obligation*		1.5			1.4			3.0			2.8
Expected return on plan assets*		(1.8	)		(1.7	)		(3.6	)		(3.4	)
Amortization of prior service credit*		(0.5	)		(0.4	)		(0.9	)		(0.9	)
Amortization of actuarial loss*		0.2			0.4			0.4			0.9
Subtotal		1.0			1.4			2.0			2.7
Regulatory adjustment		1.7			1.9			3.4			3.6
Net pension cost	$	2.7		$	3.3		$	5.4		$	6.3

* Denotes pension expense line items that are recorded below the operating income line in the income statements, in the line items “Other Income, Net” or “Other Income (Expense), Net.”

Pursuant to the provisions of the Missouri Utilities’ and Spire Alabama’s pension plans, pension obligations may be satisfied by monthly annuities, lump-sum cash payments, or special termination benefits. Lump-sum payments are recognized as settlements (which can result in gains or losses) only if the total of such payments exceeds the sum of service and interest costs in a specific year. Special termination benefits, when offered, are also recognized as settlements which can result in gains or losses. For the second quarter and first six months of fiscal 2019, no pension plans met the criteria for settlement recognition. In the quarter ended March 31, 2018, the two Spire Missouri plans met the criteria for settlement recognition, resulting in the remeasurement of the obligation of the plans using updated census data and assumptions for discount and mortality. For these plans the total lump-sum payments recognized as settlements for plan remeasurement was $39.5 and the lump-sum settlements resulted in losses of $9.4. As part of the remeasurement, the discount rate on the one Missouri plan was updated to 4.0% from 3.75%, while the other Missouri plan had its discount rate updated to 4.0% from 3.70%.

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The funding policy of the Utilities is to contribute an amount not less than the minimum required by government funding standards, nor more than the maximum deductible amount for federal income tax purposes. Fiscal 2019 contributions to Spire Missouri’s pension plans through March 31, 2019 were $8.5 to the qualified trusts and none to non-qualified plans. There were no fiscal 2019 contributions to the Spire Alabama pension plans through March 31, 2019.

Contributions to the qualified trusts of the Missouri Utilities’ pension plans for the remainder of fiscal 2019 are anticipated to be $18.2. No material contributions to Spire Alabama’s pension plans are expected to be required for the remainder of fiscal 2019.

Other Postretirement Benefits

Spire and the Utilities provide certain life insurance benefits at retirement. Spire Missouri plans provide for medical insurance after early retirement until age 65. For retirements prior to January 1, 2015, the Spire Missouri West plans provided medical insurance after retirement until death. The Spire Alabama plans provide medical insurance upon retirement until death for certain retirees depending on the type of employee and the date the employee was originally hired.

Net periodic postretirement benefit costs consisted of the following components:

	Three Months Ended March 31,						Six Months Ended March 31,
	2019			2018			2019			2018
Spire
Service cost – benefits earned during the period	$	1.8		$	2.4		$	3.7		$	4.7
Interest cost on accumulated postretirement benefit obligation*		2.1			2.2			4.4			4.4
Expected return on plan assets*		(3.9	)		(3.5	)		(8.0	)		(7.0	)
Amortization of prior service credit*		(0.1	)		(0.1	)		(0.1	)		(0.1	)
Amortization of actuarial (gain) loss*		(0.2	)		0.2			(0.3	)		0.4
Subtotal		(0.3	)		1.2			(0.3	)		2.4
Regulatory adjustment		2.6			—			5.0			0.1
Net postretirement benefit cost	$	2.3		$	1.2		$	4.7		$	2.5
Spire Missouri
Service cost – benefits earned during the period	$	1.7		$	2.3		$	3.4		$	4.5
Interest cost on accumulated postretirement benefit obligation*		1.7			1.8			3.4			3.6
Expected return on plan assets*		(2.7	)		(2.5	)		(5.5	)		(4.9	)
Amortization of prior service cost*		—			—			0.1			0.1
Amortization of actuarial (gain) loss*		(0.2	)		0.2			(0.3	)		0.4
Subtotal		0.5			1.8			1.1			3.7
Regulatory adjustment		3.0			0.5			5.9			1.0
Net postretirement benefit cost	$	3.5		$	2.3		$	7.0		$	4.7
Spire Alabama
Service cost – benefits earned during the period	$	0.1		$	0.1		$	0.2		$	0.1
Interest cost on accumulated postretirement benefit obligation*		0.4			0.3			0.9			0.7
Expected return on plan assets*		(1.2	)		(1.0	)		(2.4	)		(2.0	)
Amortization of prior service credit*		(0.1	)		(0.1	)		(0.2	)		(0.2	)
Subtotal		(0.8	)		(0.7	)		(1.5	)		(1.4	)
Regulatory adjustment		(0.4	)		(0.5	)		(0.9	)		(0.9	)
Net postretirement benefit income	$	(1.2	)	$	(1.2	)	$	(2.4	)	$	(2.3	)

* Denotes other postretirement expense line items that are recorded below the operating income line in the income statements, in the line items “Other Income, Net” or “Other Income (Expense), Net.”

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Missouri and Alabama state laws provide for the recovery in rates of costs accrued pursuant to GAAP provided that such costs are funded through an independent, external funding mechanism. The Utilities have established Voluntary Employees’ Beneficiary Association (“VEBA”) and Rabbi Trusts as external funding mechanisms. The assets of the VEBA and Rabbi Trusts consist primarily of money market securities and mutual funds invested in stocks and bonds.

The Utilities’ funding policy is to contribute amounts to the trusts equal to the periodic benefit cost calculated pursuant to GAAP as recovered in rates. There have been nocontributions to the postretirement plans through March 31, 2019 for the Missouri Utilities or Spire Alabama,and none are expected to be required for the remainder of the fiscal year.

10. INFORMATION BY OPERATING SEGMENT

The Company has two reportable segments: Gas Utility and Gas Marketing. The Gas Utility segment is the aggregation of the operations of the Utilities. The Gas Marketing segment includes the results of Spire Marketing, a subsidiary engaged in the non-regulated marketing of natural gas and related activities, including utilizing natural gas storage contracts for providing natural gas sales. Other components of the Company’s consolidated information include:

• unallocated corporate items, including certain debt and associated interest costs;

• Spire STL Pipeline LLC, a subsidiary of Spire constructing and planning the operation of a 65-mile FERC-regulated pipeline to deliver natural gas into eastern Missouri;

• Spire Storage, providing physical natural gas storage services; and

• Spire’s subsidiaries engaged in the operation of a propane pipeline, compression of natural gas, and risk management, among other activities.

Accounting policies are described in Note 1, Summary of Significant Accounting Policies. Intersegment transactions include sales of natural gas from Spire Marketing to Spire Missouri, sales of natural gas from Spire Missouri to Spire Marketing, propane transportation services provided by Spire NGL Inc. to Spire Missouri, and propane storage services provided by Spire Missouri to Spire NGL Inc.

Management evaluates the performance of the operating segments based on the computation of net economic earnings. Net economic earnings exclude from reported net income the after-tax impacts of fair value accounting and timing adjustments associated with energy-related transactions, the impacts of acquisition, divestiture and restructuring activities, and the largely non-cash impacts of other non-recurring or unusual items such as certain regulatory, legislative, or GAAP standard-setting actions.

	Gas Utility		Gas Marketing		Other			Eliminations			Consolidated
Three Months Ended March 31, 2019
Operating Revenues:
Revenues from external customers	$	776.7	$	25.4	$	1.4		$	—		$	803.5
Intersegment revenues		0.1		0.1		2.9			(3.1	)		—
Total Operating Revenues		776.8		25.5		4.3			(3.1	)		803.5
Operating Expenses:
Gas Utility
Natural and propane gas		366.7		—		—			(29.3	)		337.4
Operation and maintenance		112.0		—		—			(2.5	)		109.5
Depreciation and amortization		44.4		—		—			—			44.4
Taxes, other than income taxes		57.4		—		—			—			57.4
Total Gas Utility Operating Expenses		580.5		—		—			(31.8	)		548.7
Gas Marketing and Other		—		8.7		7.9			28.7			45.3
Total Operating Expenses		580.5		8.7		7.9			(3.1	)		594.0
Operating Income (Loss)	$	196.3	$	16.8	$	(3.6	)	$	—		$	209.5
Net Economic Earnings (Loss)	$	146.7	$	6.2	$	(5.0	)	$	—		$	147.9

38

	Gas Utility		Gas Marketing		Other			Eliminations			Consolidated
Three Months Ended March 31, 2018
Operating Revenues:
Revenues from external customers	$	790.6	$	21.3	$	1.5		$	—		$	813.4
Intersegment revenues		0.2		—		2.9			(3.1	)		—
Total Operating Revenues		790.8		21.3		4.4			(3.1	)		813.4
Operating Expenses:
Gas Utility
Natural and propane gas		403.2		—		—			(19.5	)		383.7
Operation and maintenance		137.5		—		—			(2.2	)		135.3
Depreciation and amortization		41.1		—		—			—			41.1
Taxes, other than income taxes		58.0		—		—			—			58.0
Total Gas Utility Operating Expenses		639.8		—		—			(21.7	)		618.1
Gas Marketing and Other		—		20.2		6.4			18.6			45.2
Total Operating Expenses		639.8		20.2		6.4			(3.1	)		663.3
Operating Income (Loss)	$	151.0	$	1.1	$	(2.0	)	$	—		$	150.1
Net Economic Earnings (Loss)	$	131.7	$	10.2	$	(4.7	)	$	—		$	137.2

39

	Gas Utility		Gas Marketing		Other			Eliminations			Consolidated
Six Months Ended March 31, 2019
Operating Revenues:
Revenues from external customers	$	1,350.5	$	51.2	$	3.8		$	—		$	1,405.5
Intersegment revenues		1.5		0.1		5.9			(7.5	)		—
Total Operating Revenues		1,352.0		51.3		9.7			(7.5	)		1,405.5
Operating Expenses:
Gas Utility
Natural and propane gas		658.5		—		—			(69.4	)		589.1
Operation and maintenance		216.9		—		—			(4.9	)		212.0
Depreciation and amortization		88.1		—		—			—			88.1
Taxes, other than income taxes		96.6		—		—			—			96.6
Total Gas Utility Operating Expenses		1,060.1		—		—			(74.3	)		985.8
Gas Marketing and Other		—		22.0		16.3			66.8			105.1
Total Operating Expenses		1,060.1		22.0		16.3			(7.5	)		1,090.9
Operating Income (Loss)	$	291.9	$	29.3	$	(6.6	)	$	—		$	314.6
Net Economic Earnings (Loss)	$	213.1	$	14.5	$	(13.8	)	$	—		$	213.8
	Gas Utility		Gas Marketing		Other			Eliminations			Consolidated
Six Months Ended March 31, 2018
Operating Revenues:
Revenues from external customers	$	1,332.5	$	40.9	$	1.8		$	—		$	1,375.2
Intersegment revenues		0.3		—		5.4			(5.7	)		—
Total Operating Revenues		1,332.8		40.9		7.2			(5.7	)		1,375.2
Operating Expenses:
Gas Utility
Natural and propane gas		666.6		—		—			(42.1	)		624.5
Operation and maintenance		238.4		—		—			(4.1	)		234.3
Depreciation and amortization		81.4		—		—			—			81.4
Taxes, other than income taxes		94.7		—		—			—			94.7
Total Gas Utility Operating Expenses		1,081.1		—		—			(46.2	)		1,034.9
Gas Marketing and Other		—		34.8		10.9			40.5			86.2
Total Operating Expenses		1,081.1		34.8		10.9			(5.7	)		1,121.1
Operating Income (Loss)	$	251.7	$	6.1	$	(3.7	)	$	—		$	254.1
Net Economic Earnings (Loss)	$	191.2	$	13.8	$	(9.9	)	$	—		$	195.1

The Company’s total assets by segment were as follows:

	March 31,			September 30,			March 31,
	2019			2018			2018
Total Assets:
Gas Utility	$	5,850.1		$	5,606.7		$	5,484.3
Gas Marketing		366.7			295.3			208.6
Other		2,396.8			2,508.0			2,211.9
Eliminations		(1,340.0	)		(1,566.4	)		(1,318.0	)
Total Assets	$	7,273.6		$	6,843.6		$	6,586.8

40

The following table reconciles the Company’s net economic earnings to net income.

	Three Months Ended March 31,						Six Months Ended March 31,
	2019			2018			2019			2018
Net Income	$	154.6		$	98.2		$	221.9		$	214.2
Adjustments, pre-tax:
Missouri regulatory adjustments		—			30.6			—			30.6
Unrealized (gain) loss on energy-related derivatives		(9.1	)		11.8			(11.3	)		12.6
Realized gain on economic hedges prior to the sale of the physical commodity		—			(0.2	)		—			(0.3	)
Acquisition, divestiture and restructuring activities		—			2.0			0.4			3.7
Income tax effect of adjustments		2.4			(11.1	)		2.8			(11.7	)
Effect of the Tax Cuts and Jobs Act		—			5.9			—			(54.0	)
Net Economic Earnings	$	147.9		$	137.2		$	213.8		$	195.1

11. COMMITMENTS AND CONTINGENCIES

Commitments

The Company and the Utilities have entered into contracts with various counterparties, expiring on dates through 2032, for the storage, transportation, and supply of natural gas. Minimum payments required under the contracts in place at March 31, 2019, are estimated at $1,826.5, $648.2, and $385.8 for the Company, Spire Missouri, and Spire Alabama, respectively. Additional contracts are generally entered into prior to or during the heating season of November through April. The Utilities recover their costs from customers in accordance with their PGA clauses or GSA riders.

Contingencies

The Company and the Utilities account for contingencies, including environmental liabilities, in accordance with accounting standards under the loss contingency guidance of ASC Topic 450, Contingencies, when it is probable that a liability has been incurred and the amount of the loss can be reasonably estimated.

In addition to matters noted below, the Company and the Utilities are involved in other litigation, claims, and investigations arising in the normal course of business. Management, after discussion with counsel, believes the final outcome will not have a material effect on the statements of income, balance sheets, and statements of cash flows of the Company, Spire Missouri, or Spire Alabama. However, there is uncertainty in the valuation of pending claims and prediction of litigation results.

The Company and the Utilities own and operate natural gas distribution, transmission, and storage facilities, the operations of which are subject to various environmental laws, regulations, and interpretations. While environmental issues resulting from such operations arise in the ordinary course of business, such issues have not materially affected the Company’s or Utilities’ financial position and results of operations. As environmental laws, regulations, and their interpretations change, the Company or the Utilities may incur additional environmental liabilities that may result in additional costs, which may be material.

In the natural gas industry, many gas distribution companies have incurred environmental liabilities associated with sites they or their predecessor companies formerly owned or operated where manufactured gas operations took place. The Utilities each have former manufactured gas plant (“MGP”) operations in their respective service territories. To the extent costs are incurred associated with environmental remediation activities, the Utilities would request authority from their respective regulators to defer such costs (less any amounts received from insurance proceeds or as contributions from other potentially responsible parties (“PRPs”)) and collect them through future rates.

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Spire Missouri

Spire Missouri has identified three former MGP sites in the city of St. Louis, Missouri (the “City”) where costs have been incurred and claims have been asserted. Spire Missouri has enrolled two of the sites in the Missouri Department of Natural Resources (“MDNR”) Brownfields/Voluntary Cleanup Program (“BVCP”). The third site is the result of a relatively new claim assertion by the U.S. Environmental Protection Agency (“EPA”) and such claim is currently being investigated.

In conjunction with redevelopment of one of the sites, Spire Missouri and another former owner of the site entered into an agreement (the “Remediation Agreement”) with the City development agencies, the developer, and an environmental consultant that obligates one of the City agencies and the environmental consultant to remediate the site and obtain a No Further Action letter from the MDNR. The Remediation Agreement also provides for a release of Spire Missouri and the other former site owner from certain liabilities related to the past and current environmental condition of the site and requires the developer and the environmental consultant to maintain certain insurance coverage, including remediation cost containment, premises pollution liability, and professional liability. The operative provisions of the Remediation Agreement were triggered on December 20, 2010, on which date Spire Missouri and the other former site owner, as full consideration under the Remediation Agreement, paid a small percentage of the cost of remediation of the site. The amount paid by Spire Missouri did not materially impact the financial condition, results of operations, or cash flows of the Company.

Spire Missouri has not owned the second site for many years. In a letter dated June 29, 2011, the Attorney General for the State of Missouri informed Spire Missouri that the MDNR had completed an investigation of the site. The Attorney General requested that Spire Missouri participate in the follow up investigations of the site. In a letter dated January 10, 2012, Spire Missouri stated that it would participate in future environmental response activities at the site in conjunction with other PRPs that are willing to contribute to such efforts in a meaningful and equitable fashion. Accordingly, Spire Missouri entered into a cost sharing agreement for remedial investigation with other PRPs. To date, MDNR has not approved the agreement, so remedial investigation has not yet occurred.

Additionally, in correspondence dated November 30, 2016, Region 7 of the EPA has asserted that Spire Missouri is liable under Section 107(a) of the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (“CERCLA”) for alleged coal gas waste contamination at a third site in the northern portion of the City on which Spire Missouri operated a MGP. Spire Missouri has not owned or operated the site for over 70 years. Spire Missouri and the site owner have met with the EPA and reviewed its assertions. Both Spire Missouri and the site owner have notified the EPA that information and data provided by the EPA to date does not rise to the level of documenting a threat to the public health or environment. As such, Spire Missouri requested more information from the EPA, some of which would also be utilized to identify other former owners and operators of the site that could be added as PRPs. To date, Spire Missouri has not received a response from the EPA.

Spire Missouri has notified its insurers that it seeks reimbursement for costs incurred in the past and future potential liabilities associated with the MGP sites. While some of the insurers have denied coverage and reserved their rights, Spire Missouri retains the right to seek potential reimbursements from them.

On March 10, 2015, Spire Missouri received a Section 104(e) information request under CERCLA from EPA Region 7 regarding the former Thompson Chemical/Superior Solvents site in the City. In turn, Spire Missouri issued a Freedom of Information Act (“FOIA”) request to the EPA on April 3, 2015, in an effort to identify the basis of the inquiry. The FOIA response from the EPA was received on July 15, 2015 and a response was provided to the EPA on August 15, 2015. Spire Missouri has received no further inquiry from the EPA regarding this matter.

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In its western service area, Spire Missouri has seven owned MGP sites enrolled in the BVCP, including Joplin MGP #1, St. Joseph MGP #1, Kansas City Coal Gas Station B, Kansas City Station A Railroad area, Kansas City Coal Gas Station A North, Kansas City Coal Gas Station A South, and Independence MGP #2. Source removal has been conducted at all of the owned sites since 2003 with the exception of Joplin. On September 15, 2016, a request was made with the MDNR for a restrictive covenant use limitation with respect to Joplin. Remediation efforts at the seven sites are at various stages of completion, ranging from groundwater monitoring and sampling following source removal activities to the aforementioned request in respect to Joplin. As part of its participation in the BVCP, Spire Missouri communicates regularly with the MDNR with respect to its remediation efforts and monitoring activities at these sites. On May 11, 2015, MDNR approved the next phase of investigation at the Kansas City Station A North and Railroad areas.

To date, costs incurred for all Missouri Utilities’ MGP sites for investigation, remediation and monitoring these sites have not been material. However, the amount of costs relative to future remedial actions at these and other sites is unknown and may be material. The actual future costs that Spire Missouri may incur could be materially higher or lower depending upon several factors, including whether remediation actions will be required, final selection and regulatory approval of any remedial actions, changing technologies and government regulations, the ultimate ability of other PRPs to pay, and any insurance recoveries.

In 2013, Spire Missouri retained an outside consultant to conduct probabilistic cost modeling of 19 former MGP sites owned or operated by Spire Missouri. The purpose of this analysis was to develop an estimated range of probabilistic future liability for each site. That analysis, completed in August 2014, provided a range of demonstrated possible future expenditures to investigate, monitor and remediate all 19 MGP sites. Spire Missouri has recorded its best estimate of the probable expenditures that relate to these matters. The amount is not material.

Spire Missouri and the Company do not expect potential liabilities that may arise from remediating these sites to have a material impact on their future financial condition or results of operations.

Spire Alabama

On December 17, 2013, an incident occurred at a Housing Authority apartment complex in Birmingham, Alabama that resulted in one fatality, personal injuries and property damage. Spire Alabama cooperated with the National Transportation Safety Board (“NTSB”) which investigated the incident. The NTSB report of findings was issued on March 30, 2016 and no safety recommendations, fines, or penalties were contained therein. Spire Alabama has been named as a defendant in several lawsuits arising from the incident, some of which remain pending. Spire Alabama does not expect potential liabilities that may arise from these lawsuits to have a material impact on its future financial condition or results of operations.

Spire Alabama is in the chain of title of nine former MGP sites, four of which it still owns, and five former manufactured gas distribution sites, one of which it still owns. Spire Alabama does not foresee a probable or reasonably estimable loss associated with these sites. Spire Alabama and the Company do not expect potential liabilities that may arise from remediating these sites to have a material impact on their future financial condition or results of operations.

In 2012, Spire Alabama responded to an EPA Request for Information Pursuant to Section 104 of CERCLA relating to the 35th Avenue Superfund Site located in North Birmingham, Jefferson County, Alabama. Spire Alabama was identified as a PRP under CERCLA for the cleanup of the site or costs the EPA incurs in cleaning up the site. At this point, Spire Alabama has not been provided information that would allow it to determine the extent, if any, of its potential liability with respect to the 35th Avenue Superfund Site and vigorously denies its inclusion as a PRP.

Spire

In addition to those discussed above for Spire Missouri and Spire Alabama, Spire is aware of the following contingent matters.

Since April 2012, a total of 14 lawsuits encompassing more than 1,600 plaintiffs have been filed against Spire Gulf in Mobile County Circuit Court alleging that in the first half of 2008, Spire Gulf spilled tert-butyl mercaptan, an

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odorant added to natural gas for safety reasons, in Eight Mile, Alabama. All of the lawsuits have been substantially settled, with the exception of 13 individuals who rejected their settlement offers and whose claims remain pending. Those remaining claims allege nuisance, fraud and negligence causes of actions and seek unspecified compensatory and punitive damages. A claim has been made against the insurance carriers requesting reimbursement for costs accrued in respect to this spill, and a related receivable has been recorded. The Company does not expect potential liabilities that may arise from these lawsuits to have a material impact on its future financial condition or results of operations.

12. INCOME TAXES

The Tax Cuts and Jobs Act (“TCJA”) was signed into law on December 22, 2017, with an effective date of January 1, 2018, for substantially all of the provisions. The specific provisions related to regulated public utilities in the TCJA generally allow for the continued deductibility of interest expense, the elimination of full expensing for tax purposes of certain property acquired after September 27, 2017, and the continuation of certain rate normalization requirements for accelerated depreciation benefits. The Department of the Treasury (“Treasury”) has issued proposed regulations associated with the deductibility of interest expense, but further clarification of certain provisions is expected. Treasury has also issued proposed regulations on bonus depreciation which allow full expensing for certain property acquired in tax years beginning prior to January 1, 2018.

As indicated in Note 1, Summary of Significant Accounting Policies, the Company’s regulated operations accounting for income taxes is impacted by ASC 980, Regulated Operations. Reductions in deferred income tax balances due to the reduction in the corporate income tax rate will result in amounts previously collected from utility customers for these deferred taxes to be refundable to such customers, generally through reductions in future rates. The TCJA includes provisions that stipulate how these excess deferred taxes are to be passed back to customers for certain accelerated tax depreciation benefits. In the third quarter of fiscal 2018, the MoPSC Amended Report and Order took effect and the estimated excess accumulated deferred income tax began to be returned to customers in rates. The amount being returned is estimated with a tracker established to defer the difference from the estimated amounts to the actual amounts once the actual amounts have been calculated. During the three and six months ended March 31, 2019, Spire Missouri returned excess accumulated deferred taxes of $2.1 and $4.2, respectively. The treatment for accumulated deferred income tax balances for Spire Alabama, Spire Gulf and Spire Mississippi is yet to be determined by state regulators.

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Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

(Dollars in millions, except per unit and per share amounts)

This section analyzes the financial condition and results of operations of Spire Inc. (“Spire” or the “Company”), Spire Missouri Inc. (“Spire Missouri” or the “Missouri Utilities”), and Spire Alabama Inc. (“Spire Alabama”). Spire Missouri, Spire Alabama, and Spire EnergySouth Inc. (“Spire EnergySouth”) are wholly owned subsidiaries of the Company. Spire Missouri, Spire Alabama and the subsidiaries of Spire EnergySouth, are collectively referred to as the “Utilities.” The subsidiaries of Spire EnergySouth are Spire Gulf Inc. (“Spire Gulf”) and Spire Mississippi Inc. (“Spire Mississippi”). This section includes management’s view of factors that affect the respective businesses of the Company, Spire Missouri, and Spire Alabama, explanations of financial results including changes in earnings and costs from the prior periods, and the effects of such factors on the Company’s, Spire Missouri’s and Spire Alabama’s overall financial condition and liquidity.

Certain matters discussed in this report, excluding historical information, include forward-looking statements. Certain words, such as “may,” “anticipate,” “believe,” “estimate,” “expect,” “intend,” “plan,” “seek,” and similar words and expressions identify forward-looking statements that involve uncertainties and risks. Future developments may not be in accordance with our current expectations or beliefs and the effect of future developments may not be those anticipated. Among the factors that may cause results to differ materially from those contemplated in any forward-looking statement are:

• Weather conditions and catastrophic events, particularly severe weather in the natural gas producing areas of the country;

• Volatility in gas prices, particularly sudden and sustained changes in natural gas prices, including the related impact on margin deposits associated with the use of natural gas derivative instruments, and the impact on our competitive position in relation to suppliers of alternative heating sources, such as electricity;

• Changes in gas supply and pipeline availability, including decisions by natural gas producers to reduce production or shut in producing natural gas wells, expiration of existing supply and transportation arrangements that are not replaced with contracts with similar terms and pricing, as well as other changes that impact supply for and access to the markets in which our subsidiaries transact business;

• Acquisitions may not achieve their intended results;

• The Spire STL Pipeline project may be hindered or halted by regulatory, legal, operational or other obstacles;

• Legislative, regulatory and judicial mandates and decisions, some of which may be retroactive, including those affecting:

▪ allowed rates of return,

▪ incentive regulation,

▪ industry structure,

▪ purchased gas adjustment provisions,

▪ rate design structure and implementation,

▪ regulatory assets,

▪ non-regulated and affiliate transactions,

▪ franchise renewals,

▪ environmental or safety matters, including the potential impact of legislative and regulatory actions related to climate change and pipeline safety,

▪ taxes,

▪ pension and other postretirement benefit liabilities and funding obligations, or

▪ accounting standards;

• The results of litigation;

• The availability of and access to, in general, funds to meet our debt obligations prior to or when they become due and to fund our operations and necessary capital expenditures, either through (i) cash on hand, (ii) operating cash flow, or (iii) access to the capital markets;

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• Retention of, ability to attract, ability to collect from, and conservation efforts of, customers;

• Our ability to comply with all covenants in our indentures and credit facilities any violations of which, if not cured in a timely manner, could trigger a default of our obligation;

• Capital and energy commodity market conditions, including the ability to obtain funds with reasonable terms for necessary capital expenditures and general operations and the terms and conditions imposed for obtaining sufficient gas supply;

• Discovery of material weakness in internal controls;

• The disruption, failure or malfunction of our information technology systems including due to cyberattacks; and

• Employee workforce issues, including but not limited to labor disputes and future wage and employee benefit costs, including changes in discount rates and returns on benefit plan assets.

Management’s Discussion and Analysis of Financial Condition and Results of Operations should be read in conjunction with the Company’s Condensed Consolidated Financial Statements, Spire Missouri’s and Spire Alabama’s Condensed Financial Statements, and the notes thereto.

OVERVIEW

The Company has two reportable segments: Gas Utility and Gas Marketing. Nearly all of Spire’s earnings are derived from its Gas Utility segment, which reflects the regulated activities of the Utilities. The Gas Utility segment consists of the regulated businesses of Spire Missouri, Spire Alabama and the subsidiaries of Spire EnergySouth. Due to the seasonal nature of the Utilities’ business, earnings of Spire, Spire Missouri and Spire Alabama are typically concentrated during the heating season of November through April each fiscal year.

Gas Utility - Spire Missouri

Spire Missouri is Missouri’s largest natural gas distribution utility and is regulated by the Missouri Public Service Commission (“MoPSC”). Spire Missouri serves St. Louis and eastern Missouri through Spire Missouri East and serves Kansas City and western Missouri through Spire Missouri West. Spire Missouri purchases natural gas in the wholesale market from producers and marketers and ships the gas through interstate pipelines into our distribution facilities for sale to residential, commercial and industrial customers. Spire Missouri also transports gas through its distribution system for certain larger customers who buy their own gas on the wholesale market. Spire Missouri delivers natural gas to customers at rates and in accordance with tariffs authorized by the MoPSC. The earnings of Spire Missouri are primarily generated by the sale of heating energy. The rate design for each service territory serves to lessen the impact of weather volatility on its customers during cold winters and stabilize Spire Missouri’s earnings.

Gas Utility - Spire Alabama

Spire Alabama is the largest natural gas distribution utility in the state of Alabama. Spire Alabama’s service territory is located in central and northern Alabama. Among the cities served by Spire Alabama are Birmingham, the center of the largest metropolitan area in the state, and Montgomery, the state capital. Spire Alabama is regulated by the Alabama Public Service Commission (“APSC”). Spire Alabama purchases natural gas through interstate and intrastate suppliers and distributes the purchased gas through its distribution facilities for sale to residential, commercial, and industrial customers and other end-users of natural gas. Spire Alabama also provides transportation services to large industrial and commercial customers located on its distribution system. These transportation customers, using Spire Alabama as their agent or acting on their own, purchase gas directly from marketers or suppliers and arrange for delivery of the gas into the Spire Alabama distribution system. Spire Alabama charges a fee to transport such customer-owned gas through its distribution system to the customers’ facilities.

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Gas Utility - Spire EnergySouth

Spire Gulf and Spire Mississippi are utilities engaged in the purchase, retail distribution and sale of natural gas to 0.1 million customers in southern Alabama and south-central Mississippi. Spire Gulf is regulated by the APSC and Spire Mississippi is regulated by the Mississippi Public Service Commission (“MSPSC”).

Gas Marketing

Spire Marketing Inc. (“Spire Marketing”) is engaged in the marketing of natural gas and related activities on a non-regulated basis and is reported in the Gas Marketing segment. Spire Marketing markets natural gas across the central and southern United States (“U.S.”). It holds firm transportation and storage contracts in order to effectively manage its transactions with counterparties, which primarily include producers, municipalities, electric and gas utility companies, and large commercial and industrial customers.

Other

Other components of the Company’s consolidated information include:

• unallocated corporate items, including certain debt and associated interest costs;

• Spire STL Pipeline LLC (“STL Pipeline”) and Spire Storage West LLC (“Spire Storage”), described below; and

• Spire’s subsidiaries engaged in the operation of a propane pipeline, compression of natural gas, and risk management, among other activities.

Spire STL Pipeline LLC is a wholly owned subsidiary of Spire constructing and planning the operation of a 65-mile pipeline to connect to the Rockies Express Pipeline in Scott County, Illinois, to delivery points in St. Louis County, Missouri, including Spire Missouri’s storage facility. The Federal Energy Regulatory Commission (“FERC”) issued a Certificate of Public Convenience and Necessity in August 2018 and a Notice to Proceed in November 2018, allowing construction to begin. The pipeline will operate under FERC jurisdiction and will be capable of delivering up to 4 million therms per day of natural gas into eastern Missouri. Spire Missouri will be the foundational shipper with a contractual commitment of 3.5 million therms per day. Construction is underway and is anticipated to be completed by the end of the fiscal year.

Spire Storage is engaged in the storage of natural gas in the Western region of the United States. Spire Storage consists of two adjacent storage facilities: Ryckman Creek acquired in December 2017 and Clear Creek acquired in May 2018. The acquisition of Clear Creek created an opportunity to develop a larger, more flexible, and more reliable combined storage platform that optimizes the commercial opportunity in the region. Accordingly, Spire Storage filed an application with the FERC to operate both facilities in an integrated fashion under a single market-based tariff, which the FERC approved seven months later on January 25, 2019. The timing of the FERC approval, coupled with the additional review of the geological and operational capabilities of the combined facilities, has lengthened the time required to finalize a new development plan that will position Spire Storage to optimize the combined facilities. It is anticipated that the final development plan will result in added investments in resources, infrastructure and pipeline connectivity between the facilities and with nearly interstate pipelines to ensure Spire Storage can deliver the enhanced deliverability, services and value that exists in the region.

NON-GAAP MEASURES

Net income, earnings per share and operating income reported by Spire, Spire Missouri and Spire Alabama are determined in accordance with accounting principles generally accepted in the United States of America (“GAAP”). Spire, Spire Missouri and Spire Alabama also provide the non-GAAP financial measures of net economic earnings, net economic earnings per share and contribution margin. Management and the Board of Directors use non-GAAP financial measures, in addition to GAAP financial measures, to understand and compare operating results across accounting periods, for financial and operational decision making, for planning and forecasting, to determine incentive compensation and to evaluate financial performance. These non-GAAP operating metrics should not be considered as alternatives to, or more meaningful than, the related GAAP measures. Reconciliations of non-GAAP financial measures to the most directly comparable GAAP measures are provided on the following pages.

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Net Economic Earnings and Net Economic Earnings Per Share

Net economic earnings and net economic earnings per share are non-GAAP measures that exclude from net income the impacts of fair value accounting and timing adjustments associated with energy-related transactions, the impacts of acquisition, divestiture and restructuring activities, and the largely non-cash impacts of other non-recurring or unusual items such as certain regulatory, legislative or GAAP standard-setting actions. In fiscal 2018, these items included the revaluation of deferred tax assets and liabilities due to the federal Tax Cuts and Jobs Act and the write-off of certain long-standing assets as a result of disallowances in our Missouri rate proceedings. In addition, net economic earnings per share excludes the impact, in the fiscal year of issuance, of shares issued to finance acquisitions that have yet to be included in net economic earnings.

The fair value and timing adjustments are made in instances where the accounting treatment differs from what management considers the economic substance of the underlying transaction, including the following:

• Net unrealized gains and losses on energy-related derivatives that are required by GAAP fair value accounting associated with current changes in the fair value of financial and physical transactions prior to their completion and settlement. These unrealized gains and losses result primarily from two sources:

1) changes in the fair values of physical and/or financial derivatives prior to the period of settlement; and,

2) ineffective portions of accounting hedges, required to be recorded in earnings prior to settlement, due to differences in commodity price changes between the locations of the forecasted physical purchase or sale transactions and the locations of the underlying hedge instruments;

• Lower of cost or market adjustments to the carrying value of commodity inventories resulting when the market price of the commodity falls below its original cost, to the extent that those commodities are economically hedged; and

• Realized gains and losses resulting from the settlement of economic hedges prior to the sale of the physical commodity.

These adjustments eliminate the impact of timing differences and the impact of current changes in the fair value of financial and physical transactions prior to their completion and settlement. Unrealized gains or losses are recorded in each period until being replaced with the actual gains or losses realized when the associated physical transactions occur. Management believes that excluding the earnings volatility caused by recognizing changes in fair value prior to settlement and other timing differences associated with related purchase and sale transactions provides a useful representation of the economic effects of only the actual settled transactions and their effects on results of operations. While management uses these non-GAAP measures to evaluate both Spire’s Utilities and its other gas-related businesses, the net effect of these fair value and timing adjustments on the Utilities’ earnings is minimal because gains or losses on their natural gas derivative instruments are deferred pursuant to state regulation.

Contribution Margin

In addition to operating revenues and operating expenses, management also uses the non-GAAP measure of contribution margin when evaluating results of operations. Contribution margin is defined as operating revenues less natural and propane gas costs and gross receipts tax expense. The Utilities pass to their customers (subject to prudence review by, as applicable, the MoPSC, APSC, or MSPSC) increases and decreases in the wholesale cost of natural gas in accordance with their Purchased Gas Adjustment (“PGA”) clauses or Gas Supply Adjustment (“GSA”) riders. The volatility of the wholesale natural gas market results in fluctuations from period to period in the recorded levels of, among other items, revenues and natural gas cost expense. Nevertheless, increases and decreases in the cost of gas associated with system gas sales volumes and gross receipts tax expense (which are calculated as a percentage of revenues), with the same amount (excluding immaterial timing differences) included in revenues, have no direct effect on operating income. Therefore, management believes that contribution margin is a useful supplemental measure, along with the remaining operating expenses, for assessing the Company’s and the Utilities’ performance.

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EARNINGS – THREE MONTHS ENDED MARCH 31, 2019

Spire

Net Income and Net Economic Earnings

The following tables reconcile the Company’s net economic earnings to the most comparable GAAP number, net income.

	Gas Utility			Gas Marketing			Other			Total			Per Diluted Share**
Three Months Ended March 31, 2019
Net Income (Loss) [GAAP]	$	146.7		$	12.9		$	(5.0	)	$	154.6		$	3.04
Adjustments, pre-tax:
Unrealized gain on energy-related derivatives		—			(9.1	)		—			(9.1	)		(0.18	)
Income tax effect of adjustments*		—			2.4			—			2.4			0.04
Net Economic Earnings (Loss) [Non-GAAP]**	$	146.7		$	6.2		$	(5.0	)	$	147.9		$	2.90
Three Months Ended March 31, 2018
Net Income (Loss) [GAAP]	$	102.5		$	0.3		$	(4.6	)	$	98.2		$	2.03
Adjustments, pre-tax:
Missouri regulatory adjustments		30.6			—			—			30.6			0.63
Unrealized loss on energy-related derivatives		—			11.8			—			11.8			0.24
Realized gain on economic hedges prior to the sale of the physical commodity		—			(0.2	)		—			(0.2	)		(0.01	)
Acquisition, divestiture and restructuring activities		0.2			—			1.8			2.0			0.04
Income tax effect of adjustments*		(7.6	)		(3.0	)		(0.5	)		(11.1	)		(0.22	)
Effect of the Tax Cuts and Jobs Act (“TCJA”)		6.0			1.3			(1.4	)		5.9			0.12
Net Economic Earnings (Loss) [Non-GAAP]**	$	131.7		$	10.2		$	(4.7	)	$	137.2		$	2.83

* Income tax effect is calculated by applying federal, state, and local income tax rates applicable to ordinary income to the amounts of the pre-tax reconciling items and then adding any estimated effects of enacted state or local income tax laws for periods before the related effective date.

** Net economic earnings per share is calculated by replacing consolidated net income with consolidated net economic earnings in the GAAP diluted earnings per share calculation.

Consolidated

Spire’s net income was $154.6 for the three months ended March 31, 2019, compared with $98.2 for the three months ended March 31, 2018. Basic and diluted earnings per share for the three months ended March 31, 2019, were $3.05 and $3.04, respectively, compared with basic and diluted earnings per share of $2.03 for the three months ended March 31, 2018. Net income increased $56.4, reflecting a $44.2 increase in the Gas Utility segment and a $12.6 increase in Gas Marketing. The Gas Utility increase reflects a $38.4 ($23.6 after-tax) expense for Missouri rate case write-offs recorded in the prior-year quarter and a rate design change at the Missouri Utilities in the current quarter. Gas Marketing net income increased due to a $20.7 ($15.3 after-tax) improvement in derivative activity and fair value measurements, as well as the benefit of its geographic expansion, offset by a return to more normalized basis differentials in the current quarter as compared to the prior year.

Spire’s net economic earnings were $147.9 ($2.90 per diluted share) for the three months ended March 31, 2019, an increase of $10.7 from the $137.2 ($2.83 per diluted share) reported for the same period last year. For the current quarter both net income per share and net economic earnings per share were impacted by 2.3 million shares that were issued in May 2018. The principal drivers of the increase in net economic earnings was the rate design impact at the Missouri Utilities, offset partly by lower Gas Marketing earnings, as reflected in the table. These impacts are described in further detail below.

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Gas Utility

For the three months ended March 31, 2019, net economic earnings for the Gas Utility segment increased $15.0 from the second quarter last year, with earnings growth across all the Utilities.  The new rate design at the Missouri Utilities lowered the fixed monthly charge and increased the volumetric component, resulting in the shifting of revenues and earnings from April - October to the November - March time periods when the highest volume of gas is used by customers. The Utilities also experienced $3.3 higher operation and maintenance (“O&M”) expense in the second quarter of fiscal 2019 after removal of Missouri rate case write-offs and a $9.6 net quarter-over-quarter increase due to the mix of service and non-service postretirement benefits costs now recorded in other income and expense, combined with higher depreciation expenses resulting from the continued infrastructure investment at all the Utilities. These impacts are discussed in further detail below.

Gas Marketing

For the three months ended March 31, 2019, net economic earnings for the Gas Marketing segment decreased $4.0 compared with the second quarter last year. Second quarter NEE was $6.2, down from $10.2 in the prior year that included incremental earnings from unusually favorable weather-driven market conditions. The solid performance in the current year period reflects the benefit of geographic expansion that created additional opportunities to optimize the segment’s supply, transportation and storage portfolio. This was more than offset by a return to more normal market conditions with narrower basis differentials.

Other

For the three months ended March 31, 2019, net economic loss for Other increased $0.3 compared with the second quarter last year. This increase reflects a $4.8 operating loss associated with Spire Storage (where operating and restructuring costs were excluded from NEE in the prior year) and higher interest expense due to increased short-term rates, both of which were largely offset by higher Allowance for Funds Used During Construction (“AFUDC”) income for Spire STL Pipeline.

Operating Revenues and Expenses and Contribution Margin

Reconciliations of the Company’s contribution margin to the most directly comparable GAAP measure are shown below.

	Gas Utility			Gas Marketing			Other			Eliminations			Consolidated
Three Months Ended March 31, 2019
Operating Income (Loss) [GAAP]	$	196.3		$	16.8		$	(3.6	)	$	—		$	209.5
Operation and maintenance expenses		112.0			2.7			6.5			(2.9	)		118.3
Depreciation and amortization		44.4			—			0.5			—			44.9
Taxes, other than income taxes		57.4			0.3			0.4			—			58.1
Less: Gross receipts tax expense		(43.4	)		(0.1	)		—			—			(43.5	)
Contribution Margin [Non-GAAP]		366.7			19.7			3.8			(2.9	)		387.3
Natural and propane gas costs		366.7			5.7			0.5			(0.2	)		372.7
Gross receipts tax expense		43.4			0.1			—			—			43.5
Operating Revenues	$	776.8		$	25.5		$	4.3		$	(3.1	)	$	803.5
Three Months Ended March 31, 2018
Operating Income (Loss) [GAAP]	$	151.0		$	1.1		$	(2.0	)	$	—		$	150.1
Operation and maintenance expenses		137.5			1.5			5.8			(2.6	)		142.2
Depreciation and amortization		41.1			—			0.4			—			41.5
Taxes, other than income taxes		58.0			0.1			0.1			—			58.2
Less: Gross receipts tax expense		(43.5	)		(0.1	)		—			—			(43.6	)
Contribution Margin [Non-GAAP]		344.1			2.6			4.3			(2.6	)		348.4
Natural and propane gas costs		403.2			18.6			0.1			(0.5	)		421.4
Gross receipts tax expense		43.5			0.1			—			—			43.6
Operating Revenues	$	790.8		$	21.3		$	4.4		$	(3.1	)	$	813.4

50

Consolidated

As shown in the table above, Spire reported operating revenue of $803.5, a decrease of $9.9 for the three months ended March 31, 2019, compared with the same period last year, primarily due to a $14.0 reduction in the Gas Utility segment. Spire’s contribution margin increased $38.9 compared with last year, due to increases in the Gas Utility and Gas Marketing segments of $22.6 and $17.1, respectively, before intersegment eliminations. Depreciation and amortization expenses were up $3.3 in the Gas Utility segment, reflecting the higher overall capital investments across all utilities. Gas Utility O&M expenses in the quarter were $25.5 lower than the prior-year quarter, driven primarily by Missouri rate case write-offs of $38.4 recorded in the prior-year quarter, offset by $9.6 net quarter-over-quarter increase due to the mix of service and non-service postretirement benefits costs now recorded in other income and expense. Excluding these impacts, Gas Utility O&M expenses increased approximately $3.3 versus the second quarter in the prior year, as a net $4.0 increase in employee benefits and energy efficiency costs from the Missouri rate cases were partially offset by lower other discretionary costs. These impacts are described in further detail below.

Gas Utility

Operating Revenues – Gas Utility operating revenues for the three months ended March 31, 2019, were $776.8, or $14.0 lower than the same period last year. The decrease in Gas Utility operating revenues was attributable to the following factors:

Missouri Utilities – 2018 rate case resets (net of TCJA giveback)	$	19.6
Spire Alabama – Rate Stabilization and Equalization (“RSE”): net renewal and giveback		2.4
Missouri Utilities and Spire Alabama – Lower PGA/GSA cost recoveries		(20.2	)
Missouri Utilities and Spire Alabama – Volumetric usage (net of weather mitigation)		(12.1	)
Missouri Utilities – Off-system sales and capacity release		(3.6	)
All other factors		(0.1	)
Total Variation	$	(14.0	)

The decrease in revenues was driven by lower gas cost recoveries, and lower volumetric usage. Although the Missouri Utilities saw a $3.3 increase in revenues due to higher volumetric usage (net of weather mitigation), which was a function of colder weather patterns experienced across their service areas in the current quarter, Spire Alabama’s usage declined by $15.4, more than offsetting the increase in Missouri. These impacts were only partly offset by the $19.6 increase in revenues due to rate design changes (net of TCJA giveback) at the Missouri Utilities as a result of the 2018 rate cases, and the $2.4 RSE regulatory adjustment at Spire Alabama. The new Missouri rate design lowered the fixed monthly charge and increased the volumetric component, resulting in the shifting of revenues from April - October to the November - March time periods when the highest volume of gas is used by customers.

Contribution Margin – Gas Utility contribution margin was $366.7 for the three months ended March 31, 2019, a $22.6 increase over the same period last year. The increase was attributable to the following factors:

Missouri Utilities – 2018 rate case resets (net of TCJA giveback)	$	19.6
Spire Alabama – RSE: net renewal and giveback		2.4
Missouri Utilities and Spire Alabama – Volumetric usage (net of weather mitigation)		(1.5	)
All other factors		2.1
Total Variation	$	22.6

The increase in contribution margin was primarily attributable to the Missouri Utilities’ rate case resets, as discussed under Operating Revenues above. Contribution margin was also slightly favorable due to the $2.4 RSE adjustment at Spire Alabama. Offsetting these positive impacts was a slightly negative volume usage impact (net of weather mitigation) of $1.5.

51

Operating Expenses – O&M expenses for the three months ended March 31, 2019 were $25.5 lower than the same period in the prior year. The decrease reflects $38.4 in Missouri rate case write-offs in the prior year, offset by $9.6 net quarter-over-quarter increase due to the mix of service and non-service postretirement benefits costs now recorded in other income and expense. Excluding these adjustments, O&M increased $3.3 versus the prior year, due primarily to higher employee benefits and energy efficiency costsresulting from the 2018 Missouri rate cases of $4.0, with other discretionary spend down marginally from last year. Depreciation and amortization expenses for the three months ended March 31, 2019, increased $3.3 from last year, the result of higher levels of capital expenditures across all the Utilities.

Gas Marketing

Operating Revenues – Operating revenues increased $4.2 versus the prior-year period resulting from higher volumetric gas sales, higher transport activity and higher general pricing. Average pricing for the three months ended March 31, 2019, was approximately $2.969/MMBtu versus approximately $2.828/MMBtu for the quarter ended March 31, 2018.

Contribution Margin – Gas Marketing contribution margin during the three months ended March 31, 2019 increased $17.1 from the same period last year, largely reflecting a $20.7 increase of gas contract derivative activity excluded from net economic earnings. Excluding these gains, margins decreased by $3.6 from the prior year reflecting a return to more normal market conditions with narrower basis differentials, offset in part by geographic expansion that created additional opportunities to optimize the segment’s supply, transportation and storage portfolio.

Interest Charges

Consolidated interest charges during the three months ended March 31, 2019, increased by $2.2 from the same period last year. The increase was primarily driven by net long-term debt issuances and higher rates and levels of short-term borrowings. For the three months ended March 31, 2019 and 2018, average short-term borrowings were $573.1 and $545.8, respectively, and the average interest rates on these borrowings were 2.93% and 2.05%, respectively. Partly offsetting these factors was an increase in the non-cash AFUDC income for Spire STL Pipeline compared to the prior year.

Income Taxes

Consolidated income tax expense during the three months ended March 31, 2019, increased $14.5 from the same period last year, primarily due to an increase in pre-tax book income and the prior year benefiting from a TCJA adjustment, offset in part by the amortization of excess deferred taxes in the current year.

Spire Missouri

	Three Months Ended March 31,
	2019			2018
Operating Income [GAAP]	$	102.4		$	61.6
Operation and maintenance expenses		70.7			94.0
Depreciation and amortization		27.8			25.2
Taxes, other than income taxes		41.9			41.2
Less: Gross receipts tax expense		(32.1	)		(30.6	)
Contribution Margin [Non-GAAP]		210.7			191.4
Natural and propane gas costs		313.8			311.2
Gross receipts tax expense		32.1			30.6
Operating Revenues	$	556.6		$	533.2
Net Income	$	80.0		$	38.4

52

Operating revenues for the three months ended March 31, 2019, increased $23.4 from the same period last year primarily due to a $19.6 increase attributable to rate design changes (net of TCJA giveback) resulting from the 2018 rate case resets,and a $3.3increase in volumetric usage (net of weather mitigation)resulting from colder weather. Contribution margin for the three months ended March 31, 2019, increased $19.3 from the same period last year, largely due to the $19.6 from the rate design changes mentioned above.

O&M expenses for the three months ended March 31, 2019 decreased $23.3 primarily due to $38.4 in Missouri rate case write-offs recorded in the prior-year quarter, offset by $9.6 net quarter-over-quarter increase due to the mix of service and non-service postretirement benefits costs now recorded in other income and expense. Excluding these items, operating expenses increased by $5.5, primarily due to an increase in higher employee benefits and energy efficiency costs resulting from the 2018 rate case that is fully recovered in operating revenues. Depreciation and amortization increased $2.6 in the current quarter versus the prior-year quarter due to higher capital investments.

For the quarter ended March 31, 2019, net income increased $41.6 versus the prior-year quarter, which was primarily the result of the $23.6 after-tax rate case charge in the prior year, combined with the higher contribution margin in the current-year quarter.

Degree days in Spire Missouri’s service areas during the three months ended March 31, 2019, were 10% colder than normal and 6% colder than the same period last year, resulting in higher usage on a year-over-year comparative basis. The Missouri Utilities’ total system therms sold and transported were 829.0 million for the three months ended March 31, 2019, compared with 786.5 million for the same period last year. Total off-system therms sold and transported were 11.7 million for the three months ended March 31, 2019, compared with 37.0 million for the same period last year, as a 5% increase in current-year system demand reduced therm availability for off-system sales. Revenues and margins were not significantly impacted from colder weather due to weather mitigation in our rate design.

Spire Alabama

	Three Months Ended March 31,
	2019			2018
Operating Income [GAAP]	$	79.6		$	77.1
Operation and maintenance expenses		33.4			35.2
Depreciation and amortization		13.7			13.1
Taxes, other than income taxes		12.6			14.4
Less: Gross receipts tax expense		(9.6	)		(11.6	)
Contribution Margin [Non-GAAP]		129.7			128.2
Natural and propane gas costs		41.1			78.5
Gross receipts tax expense		9.6			11.6
Operating Revenues	$	180.4		$	218.3
Net Income	$	56.7		$	55.6

Operating revenues for the three months ended March 31, 2019, decreased $37.9 from the same period last year. The change in operating revenue was driven principally by a $22.9 decrease in gas cost recoveries versus the prior year and lower current-year volumetric usage impacts of $15.4. Contribution margin increased $1.5, primarily due to the 2019 rate reset (RSE renewal and giveback) of $2.4, partly offset by lower volumes.

Depreciation and amortization expenses for the three months ended March 31, 2019, were $0.6 higher than the same period last year, the result of continued infrastructure investment. O&M expenses were $1.8 lower, primarily due to lower employee-related costs.

As measured in degree days, temperatures in Spire Alabama’s service area during the three months ended March 31, 2019 were 21% warmer than normal and 18% warmer than a year ago. Spire Alabama’s total system therms sold and transported were 316.5 million for the three months ended March 31, 2019, compared with 333.7 million for the same period last year.

53

EARNINGS – SIX MONTHS ENDED MARCH 31, 2019

Spire

Net Income and Net Economic Earnings

The following tables reconcile the Company’s net economic earnings to the most comparable GAAP number, net income.

	Gas Utility			Gas Marketing			Other			Total			Per Diluted Share**
Six Months Ended March 31, 2019
Net Income (Loss) [GAAP]	$	213.1		$	22.9		$	(14.1	)	$	221.9		$	4.36
Adjustments, pre-tax:
Unrealized gain on energy-related derivatives		—			(11.3	)		—			(11.3	)		(0.22	)
Acquisition, divestiture and restructuring activities		—			—			0.4			0.4			0.01
Income tax effect of adjustments*		—			2.9			(0.1	)		2.8			0.05
Net Economic Earnings (Loss) [Non-GAAP]	$	213.1		$	14.5		$	(13.8	)	$	213.8		$	4.20
Six Months Ended March 31, 2018
Net Income [GAAP]	$	147.7		$	3.8		$	62.7		$	214.2		$	4.42
Adjustments, pre-tax:
Missouri regulatory adjustments		30.6			—			—			30.6			0.63
Unrealized loss on energy-related derivatives		—			12.6			—			12.6			0.26
Realized gain on economic hedges prior to the sale of the physical commodity		—			(0.3	)		—			(0.3	)		(0.01	)
Acquisition, divestiture and restructuring activities		0.2			—			3.5			3.7			0.08
Income tax effect of adjustments*		(7.6	)		(3.2	)		(0.9	)		(11.7	)		(0.24	)
Effect of the Tax Cuts and Jobs Act		20.3			0.9			(75.2	)		(54.0	)		(1.12	)
Net Economic Earnings (Loss) [Non-GAAP]	$	191.2		$	13.8		$	(9.9	)	$	195.1		$	4.02

* Income tax effect is calculated by applying federal, state, and local income tax rates applicable to ordinary income to the amounts of the pre-tax reconciling items and then adding any estimated effects of enacted state or local income tax laws for periods before the related effective date.

** Net economic earnings per share is calculated by replacing consolidated net income with consolidated net economic earnings in the GAAP diluted earnings per share calculation.

Consolidated

Spire’s net income was $221.9 for the six months ended March 31, 2019, compared with $214.2 for the six months ended March 31, 2018. Basic and diluted earnings per share for the six months ended March 31, 2019, were $4.37 and $4.36, respectively, compared with basic and diluted earnings per share of $4.43 and $4.42, respectively, for the six months ended March 31, 2018. The increase in net income of $7.7 reflects a $54.0 prior year income benefit relating to the implementation of the TCJA, partly offset by $38.4 in pre-tax ($23.6 after-tax) expense for Missouri rate case write-offs recorded in the prior year. Excluding these amounts, net income growth was $38.1, driven by higher operating results of the Gas Utility segment primarily attributable to Spire Missouri’s new rate design.

The Gas Marketing segment also experienced strong operating results, due to favorable fair value mark-to-market adjustments, geographic expansion, and solid market conditions in the current year.

Net economic earnings were $213.8 ($4.20 per diluted share) for the six months ended March 31, 2019, up from $195.1 ($4.02 per diluted share) for the same period last year, reflecting a $21.9 increase for Gas Utility and a $0.7 net economic earnings increase experienced by Gas Marketing, partially offset by a $3.9 higher net economic loss in Other. These fluctuations are described in more detail below.

54

Gas Utility

Gas Utility net income increased by $65.4 and net economic earnings increased $21.9 for the six months ended March 31, 2019, compared with the six months ended March 31, 2018. Both net income and net economic earnings were higher in the current year from the rate case redesign at Spire Missouri, and from weather patterns that were favorable to the prior year. Prior-year net income was negatively impacted by the $23.6 after-tax expense for Missouri rate case write-offs offset by one-time tax benefits recorded in 2018 related to the implementation of the TCJA.

Gas Marketing

The Gas Marketing segment reported net income totaling $22.9 for the six months ended March 31, 2019, versus net income of $3.8 during the same period last year, with the current-year period benefitting from favorable fair value mark-to-market valuations. Net economic earnings for the six months ended March 31, 2019, were $14.5, an increase of $0.7 from the same period last year as the benefits of geographic expansion more than offset the return of more normal market conditions and higher operating expenses.

Other

For the six months ended March 31, 2019, net economic loss for Other was $13.8, up from $9.9 in the prior-year period. The higher costs reflect higher corporate interest costs and a $7.4 loss from Spire Storage, partially offset by increased AFUDC income for Spire STL Pipeline.

Operating Revenues and Expenses and Contribution Margin

Reconciliations of the Company’s contribution margin to the most directly comparable GAAP measure are shown in the table below:

	Gas Utility			Gas Marketing			Other			Eliminations			Consolidated
Six Months Ended March 31, 2019
Operating Income (Loss) [GAAP]	$	291.9		$	29.3		$	(6.6	)	$	—		$	314.6
Operation and maintenance expenses		216.9			5.3			13.9			(5.6	)		230.5
Depreciation and amortization		88.1			—			1.0			—			89.1
Taxes, other than income taxes		96.6			0.5			0.8			—			97.9
Less: Gross receipts tax expense		(69.3	)		(0.1	)		—			—			(69.4	)
Contribution Margin [Non-GAAP]		624.2			35.0			9.1			(5.6	)		662.7
Natural and propane gas costs		658.5			16.2			0.6			(1.9	)		673.4
Gross receipts tax expense		69.3			0.1			—			—			69.4
Operating Revenues	$	1,352.0		$	51.3		$	9.7		$	(7.5	)	$	1,405.5
Six Months Ended March 31, 2018
Operating Income (Loss) [GAAP]	$	251.7		$	6.1		$	(3.7	)	$	—		$	254.1
Operation and maintenance expenses		238.4			3.1			10.1			(4.9	)		246.7
Depreciation and amortization		81.4			—			0.5			—			81.9
Taxes, other than income taxes		94.7			0.1			0.1			—			94.9
Less: Gross receipts tax expense		(66.6	)		(0.1	)		—			—			(66.7	)
Contribution Margin [Non-GAAP]		599.6			9.2			7.0			(4.9	)		610.9
Natural and propane gas costs		666.6			31.6			0.2			(0.8	)		697.6
Gross receipts tax expense		66.6			0.1			—			—			66.7
Operating Revenues	$	1,332.8		$	40.9		$	7.2		$	(5.7	)	$	1,375.2

55

Consolidated

Spire’s operating revenues for the six months ended March 31, 2019, increased by $19.2 at the Gas Utility segment and were $10.4 higher in the Gas Marketing segment. The Gas Utility increase was due principally to the Missouri rate case reset (net of TCJA giveback) and weather/volumetric impacts (net of weather mitigation), offset by lower gas cost recoveries. The Gas Marketing increase was due to a combination of higher pricing and volumes. Spire’s contribution margin increased $51.8 compared with the same six-month period last year. The growth in contribution margin was primarily attributable to the Gas Utility segment, up $24.6, with the Missouri Utilities up $20.7 and Spire Alabama up $3.0, with remaining growth from the utilities of Spire EnergySouth. In addition, Gas Marketing’s contribution margin was up $25.8, reflecting a $23.6 year-over-year improvement in derivative activity and fair value mark-to-market adjustments, combined with geographic expansion. Depreciation and amortization expenses were higher in the Gas Utility segment, due to higher capital investments in both the Missouri Utilities and Spire Alabama. Gas Utility O&M expenses were lower in the current year driven primarily by the Missouri rate case write-offs in the prior year.  These fluctuations are described in more detail below.

Gas Utility

Operating Revenues – Gas Utility operating revenues for the six months ended March 31, 2019, were $1,352.0, or $19.2 higher than the same period last year. The increase in Gas Utility operating revenues was attributable to the following factors:

Missouri Utilities and Spire Alabama – 2018 rate case resets (net of TCJA giveback)	$	16.1
Missouri Utilities and Spire Alabama – Volumetric usage (net of weather mitigation)		15.2
Missouri Utilities and Spire Alabama – Higher gross receipts taxes		2.5
Missouri Utilities – Customer growth		1.3
Missouri Utilities and Spire Alabama – Lower PGA/GSA cost recoveries		(14.9	)
Missouri Utilities – Off-system sales and capacity release		(1.1	)
All other factors		0.1
Total Variation	$	19.2

The increase in revenues was driven primarily by an increase of $16.1 relating to the changes to the Spire Missouri and Spire Alabama rate case resets (net of TCJA giveback), higher weather/volumetric impacts of $15.2, increases in gross receipt taxes of $2.5, and $1.3 attributable to customer growth.

The positive revenue drivers were offset by a $14.9 reduction in gas cost recoveries, and a $1.1 reduction in Spire Missouri off-system and capacity release.

Contribution Margin – Gas Utility contribution margin was $624.2 for the six months ended March 31, 2019, a $24.6 increase over the same period last year. The increase was attributable to the following factors:

Missouri Utilities and Spire Alabama – 2018 rate case resets (net of TCJA giveback)	$	16.1
Missouri Utilities and Spire Alabama – Volumetric usage (net of weather mitigation)		4.6
Missouri Utilities – Off-system sales and capacity release		1.5
Missouri Utilities – Customer growth		1.3
All other factors		1.1
Total Variation	$	24.6

The contribution margin increase resulted from the new Missouri rate design and colder weather in the current year (net of weather mitigation), combined with the impacts from Spire Alabama’s rate reset and the Missouri Utilities’ off-system sales and capacity release.

56

Operating Expenses – Gas Utility O&M expenses for the six months ended March 31, 2019, decreased $21.5 from last year. Removing last year’s $38.4 of Missouri rate case write-offs,offset by $9.9 net year-over-year increase due to the mix of service and non-service postretirement benefits costs now recorded in other income and expense, O&M increased $7.0. Excluding the impact of$8.0 higher employee benefits and energy efficiency coststhat resulted from the 2018 Missouri rate case,discretionary O&M expenditures in the current year are running slightly lower than the prior year. Depreciation and amortization expenses for the six months ended March 31, 2019, increased $6.7 from the same period last year as a result of higher levels of capital investment over the past year, with $5.0 attributable to Spire Missouri and $1.4 attributable to Spire Alabama.

Gas Marketing

Operating Revenues – Gas Marketing operating revenues during the six months ended March 31, 2019, increased $10.4 from the same period last year, principally due to higher total volumes in conjunction with higher general pricing levels, along with the effect of changes in trading activities. Overall commodity pricing in the current year was $0.448/MMBtu higher than the prior year.

Contribution Margin – Gas Marketing contribution margin during the six months ended March 31, 2019, increased $25.8 from the same period last year, benefiting from a net $23.6 year-over-year swing in derivative activity and mark-to-market valuations. Excluding that factor, the solid performance reflects a return to more normal market conditions, as well as geographic expansion that created additional opportunities to optimize the segment’s supply, transportation and storage portfolio.

Interest Charges

Consolidated interest charges during the six months ended March 31, 2019, were $3.7 higher than the same period last year. The increase was primarily driven by net long-term debt issuances and higher rates and levels of short-term borrowings. For the six months ended March 31, 2019 and 2018, average short-term borrowings were $598.3 and $514.2, respectively, and the average interest rates on these borrowings were 2.8% and 1.8%, respectively.

Income Taxes

Consolidated income tax expense during the six months ended March 31, 2019, increased $62.3 versus the prior year. Of this variance, $54.0 is the result of the revaluation of deferred tax assets and liabilities on the balance sheet that was recorded due to the implementation of the TCJA in the prior year. The remaining variance is the result of the higher pre-tax book income in the current year, offset in part by the amortization of excess deferred taxes.

Spire Missouri

	Six Months Ended March 31,
	2019			2018
Operating Income [GAAP]	$	173.8		$	136.6
Operation and maintenance expenses		133.8			154.1
Depreciation and amortization		55.0			50.0
Taxes, other than income taxes		70.0			67.4
Less: Gross receipts tax expense		(50.6	)		(46.8	)
Contribution Margin [Non-GAAP]		382.0			361.3
Natural and propane gas costs		537.2			517.4
Gross receipts tax expense		50.6			46.8
Operating Revenues	$	969.8		$	925.5
Net Income	$	131.2		$	127.8

57

Operating revenues during the six months ended March 31, 2019, increased $44.3 from the same period last year primarily due to a $15.2 increase attributable to the new rate design (net of TCJA giveback), a $19.1 increase in volumetric impacts (net of weather mitigation) relating to colder weather conditions in the current year, and $6.0 higher wholesale gas costs passed on to customers. Contribution margin increased $20.7 primarily due to the $15.2 increase attributable to the new rate design (net of TCJA giveback), $2.5 increase due to higher volumes and weather, a $1.5 increase due to off-system sales and capacity relief and a $1.3 increase due to customer growth. O&M expenses during the six months ended March 31, 2019, decreased $20.3 from the same period last year. Excluding the $38.4 of Missouri rate case write-offs in the prior year, offset by $9.8 net year-over-year increase due to the mix of service and non-service postretirement benefits costs now recorded in other income and expense, O&M expenses were $8.3higher in the current year versus the prior-year period. This increase is the result of higher employee benefits and energy efficiency costs (recovered in rates) resulting from the 2018 rate case, partly offset bylower discretionary expenses.Depreciation increased by $5.0 as a result of continuing increases in the levels of capital investment.

Temperatures in Spire Missouri’s service areas during the six months ended March 31, 2019, were 9% colder than the same period last year and 10% colder than normal. The Missouri Utilities’ total system therms sold and transported were 1,418.1 million for the six months ended March 31, 2019, compared with 1,312.9 million for the same period last year. Total off-system therms sold and transported were 34.8 million for the six months ended March 31, 2019, compared with 67.6 million for the same period last year. Revenues and margins were not significantly impacted by colder weather due to weather mitigation in our rate design.

Spire Alabama

	Six Months Ended March 31,
	2019			2018
Operating Income [GAAP]	$	96.7		$	95.1
Operation and maintenance expenses		67.8			68.0
Depreciation and amortization		27.3			25.9
Taxes, other than income taxes		21.5			22.6
Less: Gross receipts tax expense		(15.9	)		(17.2	)
Contribution Margin [Non-GAAP]		197.4			194.4
Natural and propane gas costs		100.6			127.5
Gross receipts tax expense		15.9			17.2
Operating Revenues	$	313.9		$	339.1
Net Income	$	67.0		$	6.0

Operating revenues for the six months ended March 31, 2019, decreased $25.2 from the same period last year.  The change was principally driven by a $20.9 decrease in gas cost recoveries versus the prior year, a $3.9 decrease related to gas usage, and $1.3 in lower gross receipts tax that was only offset partly by a $2.4 RSE adjustment. Contribution margin increased $3.0, principally as a result of the 2019 RSE rate reset. O&M expenses for the six months ended March 31, 2019, decreased $0.2 from the same period last year, primarily driven by decreases in employee-related and bad debt expenses. Net income variance versus prior year also includes the $59.2 net tax rate change and deferred tax revaluation impact resulting from the implementation of the TCJA in 2018.

Temperatures in Spire Alabama’s service area during the six months ended March 31, 2019, were 4% warmer than the same period last year and 7% warmer than normal. Spire Alabama’s total system therms sold and transported were 604.6 million for the six months ended March 31, 2019, compared with 571.1 million for the same period last year.

REGULATORY MATTERS

For discussions of regulatory matters for Spire, Spire Missouri, and Spire Alabama, see Note 4, Regulatory Matters, of the Notes to Financial Statements in Item 1.

58

CRITICAL ACCOUNTING ESTIMATES

Our discussion and analysis of our financial condition, results of operations, liquidity, and capital resources are based upon our financial statements, which have been prepared in accordance with GAAP. GAAP requires that we make estimates and judgments that affect the reported amounts of assets, liabilities, revenues and expenses, and related disclosure of contingent assets and liabilities. We evaluate our estimates on an ongoing basis. We base our estimates on historical experience and on various other assumptions that we believe are reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates. Our critical accounting estimates used in the preparation of our financial statements are described in Item 7 of the Company’s, Spire Missouri’s, and Spire Alabama’s combined Annual Report on Form 10-K for the fiscal year ended September 30, 2018, and include regulatory accounting, employee benefits and postretirement obligations, and income taxes. There were no significant changes to critical accounting estimates during the six months ended March 31, 2019.

For discussion of other significant accounting policies, see Note 1 of the Notes to Financial Statements included in this Form 10-Q as well as Note 1 of the Notes to Financial Statements included in the Company’s, Spire Missouri’s, and Spire Alabama’s combined Annual Report on Form 10-K for the fiscal year ended September 30, 2018.

ACCOUNTING PRONOUNCEMENTS

The Company, Spire Missouri and Spire Alabama have evaluated or are in the process of evaluating the impact that recently issued accounting standards will have on the companies’ financial position or results of operations upon adoption. For disclosures related to the adoption of new accounting standards, see the New Accounting Pronouncements section in Note 1 of the Notes to Financial Statements in Item 1.

CASH FLOWS

The Company’s short-term borrowing requirements typically peak during colder months when the Utilities borrow money to cover the lag between when they purchase natural gas and when their customers pay for that gas. Changes in the wholesale cost of natural gas (including cash payments for margin deposits associated with Spire Missouri’s use of natural gas derivative instruments), variations in the timing of collections of gas cost under the Utilities’ PGA clauses and GSA riders, the seasonality of accounts receivable balances, and the utilization of storage gas inventories cause short-term cash requirements to vary during the year and from year to year, and may cause significant variations in the Company’s cash provided by or used in operating activities.

	Six Months Ended March 31,
Cash Flow Summary	2019			2018
Net cash provided by operating activities	$	297.5		$	309.6
Net cash used in investing activities		(386.6	)		(233.3	)
Net cash provided by (used in) financing activities		78.8			(65.9	)

For the six months ended March 31, 2019, net cash provided by operating activities decreased $12.1 from the corresponding period of fiscal 2018. The change was due principally to the timing of accounts receivable and fluctuations in working capital items, as discussed above.

For the six months ended March 31, 2019, net cash used in investing activities was $153.3 more than for the same period in the prior year, driven by a $161.0 increase in capital expenditures, partly offset by lower acquisition activity. The higher capital spending in the current year is consistent with the Company’s capital expenditure expectations and reflects infrastructure upgrades at the Utilities, support of customer growth, new business development initiatives, as well as development of Spire STL Pipeline and Spire Storage. Total capital expenditures for the full fiscal year 2019 are expected to be approximately $740.

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Lastly, for the six months ended March 31, 2019, net cash provided by financing activities was $78.8, versus net cash used of $65.9 for the six months ended March 31, 2018. This change primarily reflects issuance of long-term debt of $190.0 this yearversus $75.0 in the prior year, combined with $34.9 lower short- and long-term borrowing repayments in the current year, partly offset with an increase in dividends paid.

LIQUIDITY AND CAPITAL RESOURCES

The Company’s, Spire Missouri’s and Spire Alabama’s access to capital markets, including the commercial paper market, and their respective financing costs, may depend on the credit rating of the entity that is accessing the capital markets. Our debt is rated by two rating agencies: Standard & Poor’s Corporation (“S&P”) and Moody’s Investors Service (“Moody’s”). As of March 31, 2019, the debt ratings of the Company, Spire Missouri and Spire Alabama, shown in the following table, remain at investment grade with a stable outlook.

	S&P	Moody’s
Spire Inc. senior unsecured long-term debt	BBB+	Baa2
Spire Inc. short-term debt	A-2	P-2
Spire Missouri senior secured long-term debt	A	A1
Spire Alabama senior unsecured long-term debt	A-	A2

It is management’s view that the Company, Spire Missouri and Spire Alabama have adequate access to capital markets and will have sufficient capital resources, both internal and external, to meet anticipated capital requirements, which primarily include capital expenditures, interest payments on long-term debt, scheduled maturities of long-term debt, short-term seasonal needs and dividends.

Cash and Cash Equivalents

Bank deposits were used to support working capital needs of the business. Spire had no temporary cash investments as of or during the three and six months ended March 31, 2019.

Short-term Debt

The Utilities’ short-term borrowing requirements typically peak during the colder months, while most of the Company’s other needs are less seasonal. These short-term cash requirements can be met through the sale of commercial paper or through the use of a revolving credit facility. For information about these resources, see Note 5, Financing Arrangements and Long-term Debt, of the Notes to Financial Statements in Item 1.

Long-term Debt and Equity

At March 31, 2019, including the current portion but excluding unamortized discounts and debt issuance costs, Spire had long-term debt totaling $2,272.0, of which $980.0 was issued by Spire Missouri, $415.0 was issued by Spire Alabama, and $62.0 was issued by other subsidiaries. For more information about long-term debt, see Note 5 of the Notes to Financial Statements in Item 1.

Spire Missouri was authorized by the MoPSC to issue registered securities (first mortgage bonds, unsecured debt and preferred stock), issue common stock, and issue private placement debt in an aggregate amount of up to $500.0 for financings placed any time before September 30, 2021. As of March 31, 2019, $400.0 remains available under this authorization.

Spire has a shelf registration statement on Form S-3 on file with the U.S. Securities and Exchange Commission (“SEC”) for the issuance and sale of up to 250,000 shares of common stock under its Dividend Reinvestment and Direct Stock Purchase Plan. There were 209,841 and 205,708 shares at March 31, 2019 and April 29, 2019, respectively, remaining available for issuance under this Form S-3. Spire and Spire Missouri also have a shelf registration statement on Form S-3 on file with the SEC for the issuance of various equity and debt securities, which expires on September 23, 2019.

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On February 6, 2019, Spire entered into an “at-the-market” equity distribution agreement under which the Company may offer and sell shares of common stock having an aggregate offering price of up to $150.0. Those shares will be issued pursuant to Spire’s shelf registration statement and its prospectus supplement dated February 6, 2019.

Including the current portion of long-term debt, and treating the redeemable noncontrolling interest as equity, the Company’s long-term consolidated capitalization at March 31, 2019 consisted of 51.6% equity, compared to 52.2% equity at September 30, 2018.

CONTRACTUAL OBLIGATIONS

During the six months ended March 31, 2019, there were no material changes outside the ordinary course of business to the estimated contractual obligations from the disclosure provided in the Company’s Form 10-K for the fiscal year ended September 30, 2018.

MARKET RISK

There were no material changes in the Company’s commodity price risk or counterparty credit risk as of March 31, 2019, relative to the corresponding information provided in the Company’s Annual Report on Form 10-K as of September 30, 2018. During the second quarter of fiscal 2017, Spire entered into a ten-year interest rate swap with a fixed interest rate of 2.658% and a notional amount of $60.0 to protect itself against adverse movements in interest rates on future interest rate payments. The Company recorded a $1.3 mark-to-market loss on this swap for the six months ended March 31, 2019. In August 2018, Spire entered into a three-year interest rate swap with a fixed interest rate of 2.7675% and a notional amount of $100.0 to protect itself against adverse movements in interest rates on future variable interest rate payments. The Company recorded a $1.6 mark-to-market loss on this swap as part of other comprehensive income for the six months ended March 31, 2019. During the first quarter of fiscal 2019, the Company entered into a three-year interest rate swap with a fixed interest rate of 3.250% and a notional amount of $100.0 to protect itself against adverse movements in interest rates on future interest rate payments. The Company recorded a $12.3 mark-to-market loss on this swap for the six months ended March 31, 2019.

ENVIRONMENTAL MATTERS

The Utilities and other Spire subsidiaries own and operate natural gas distribution, transmission and storage facilities, the operations of which are subject to various environmental laws and regulations, along with their interpretations. While environmental issues resulting from such operations arise in the ordinary course of business, such issues have not materially affected the Company’s, Spire Missouri’s, or Spire Alabama’s financial position and results of operations. As environmental laws, regulations, and interpretations change, however, the Company and the Utilities may be required to incur additional costs. For information relative to environmental matters, see Contingencies in Note 11 of the Notes to Financial Statements in Item 1.

OFF-BALANCE SHEET ARRANGEMENTS

At March 31, 2019, the Company had no off-balance-sheet financing arrangements other than operating leases, surety bonds, and letters of credit entered into in the ordinary course of business. The Company does not expect to engage in any significant off-balance-sheet financing arrangements in the near future.

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Item 3. Quantitative and Qualitative Disclosures About Market Risk

For this discussion, see Part I, Item 2, Management’s Discussion and Analysis of Financial Condition and Results of Operations – Market Risk.

Item 4. Controls and Procedures

Spire

Evaluation of Disclosure Controls and Procedures

As of the end of the period covered by this report, we carried out an evaluation, under the supervision and with participation of our management, including our Chief Executive Officer and Chief Financial Officer, of the effectiveness of the design and operation of our disclosure controls and procedures pursuant to Rule 13a-15(e) and Rule 15d-15(e) under the Securities Exchange Act of 1934, as amended. Based upon such evaluation, the Chief Executive Officer and Chief Financial Officer concluded that our disclosure controls and procedures are effective.

Change in Internal Control over Financial Reporting

There were no changes in our internal control over financial reporting that occurred during the quarter ended March 31, 2019, that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Spire Missouri

Evaluation of Disclosure Controls and Procedures

As of the end of the period covered by this report, we carried out an evaluation, under the supervision and with participation of our management, including our Chief Executive Officer and Chief Financial Officer, of the effectiveness of the design and operation of our disclosure controls and procedures pursuant to Rule 13a-15(e) and Rule 15d-15(e) under the Securities Exchange Act of 1934, as amended. Based upon that evaluation, the Chief Executive Officer and Chief Financial Officer concluded that our disclosure controls and procedures are effective.

Changes in Internal Control over Financial Reporting

There were no changes in our internal control over financial reporting that occurred during the quarter ended March 31, 2019, that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Spire Alabama

Evaluation of Disclosure Controls and Procedures

As of the end of the period covered by this report, we carried out an evaluation, under the supervision and with participation of our management, including our Chief Executive Officer and Chief Financial Officer, of the effectiveness of the design and operation of the disclosure controls and procedures pursuant to Rule 13a-15(e) and Rule 15d-15(e) under the Securities Exchange Act of 1934, as amended. Based upon that evaluation, the Chief Executive Officer and Chief Financial Officer concluded that our disclosure controls and procedures are effective.

Changes in Internal Control over Financial Reporting

There were no changes in our internal control over financial reporting that occurred during the quarter ended March 31, 2019, that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

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PART II. OTHER INFORMATION

Item 1. Legal Proceedings

For a description of legal proceedings, environmental matters and regulatory matters, see Note 11, Commitments and Contingencies, and Note 4, Regulatory Matters, of the Notes to Financial Statements in Item 1 of Part I.

The registrants are involved in litigation, claims and investigations arising in the normal course of business. Management, after discussion with counsel, believes that the final outcomes of these matters will not have a material effect on any registrant’s financial position or results of operations reflected in the financial statements presented herein.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

The only repurchases of Spire’s common stock in the quarter were pursuant to elections by employees to have shares of stock withheld to cover employee tax withholding obligations upon the vesting of performance-based and time-vested restricted stock and stock units. The following table provides information on those repurchases.

Period	(a) Total Number of Shares Purchased		(b) Average Price Paid Per Share	(c) Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs		(d) Maximum Number of Shares That May Yet be Purchased Under the Plans or Programs
January 1, 2019 – January 31, 2019		—	$—		—		—
February 1, 2019 – February 28, 2019		198	78.69		—		—
March 1, 2019 – March 31, 2019		170	79.28		—		—
Total		368	78.96		—		—

Spire Missouri’s outstanding first mortgage bonds contain restrictions on its ability to pay cash dividends on its common stock. As of March 31, 2019, all of Spire Missouri’s retained earnings were free from such restrictions.

Item 5. Other Information

Amendment to Spire Deferred Income Plan

On April 25, 2019, the Spire Inc. (“Spire”) Board of Directors, upon the recommendation of the Compensation Committee, adopted and approved an amendment and restatement of the Spire Deferred Income Plan (“DIP”), which becomes effective January 1, 2019. The DIP affords eligible directors and employees of Spire (including its named executive officers) and its designated subsidiaries the ability to defer the receipt of a portion of their compensation, which will accrue earnings, with such deferrals forming the basis for benefits upon termination, death, or disability.

The amendment to the DIP updates the current plan, which was last restated effective January 1, 2016, with the following features:

• Adds the ability of participants to defer certain equity grants made under the Spire Equity Incentive Plan.

• Clarifies the treatment of dividends paid on deferrals that are invested in the Spire company stock fund under the DIP.

• Increases the percentage of base salary eligible to be deferred from 50% to 80% on deferrals made on or after January 1, 2020.

• Incorporates prior amendments to the DIP adopted since the last plan restatement.

• Makes certain revisions and improvements to plan language.

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The foregoing description of the amendment to the DIP is qualified in its entirety by reference to the provisions, including defined terms, of the amended and restated DIP, which is filed herewith as Exhibit 10.1 to this Current Report and incorporated herein by reference.

Item 6. Exhibits

Exhibit No.	Description
4.1*	Second Supplement to Master Note Purchase Agreement, dated as of January 15, 2019, between Spire Alabama Inc. and certain institutional investors; filed as Exhibit 4.1 to Spire Alabama’s Current Report on Form 8-K filed January 21, 2019.
10.1	Spire Deferred Income Plan, Amended and Restated Effective January 1, 2019.
10.2*	Loan Agreement, dated as of December 3, 2018, by and among Spire Missouri Inc., as the Borrower, the lenders from time to time party thereto as Banks, U.S. Bank National Association, as the Administrative Agent, and Regions Bank, as Documentation Agent; filed as Exhibit 10.1 to Spire Missouri’s Current Report on Form 8-K filed December 7, 2018.
31.1	CEO and CFO Certifications under Exchange Act Rule 13a-14(a) of Spire Inc.
31.2	CEO and CFO Certifications under Exchange Act Rule 13a-14(a) of Spire Missouri Inc.
31.3	CEO and CFO Certifications under Exchange Act Rule 13a-14(a) of Spire Alabama Inc.
32.1	CEO and CFO Section 1350 Certifications of Spire Inc.
32.2	CEO and CFO Section 1350 Certifications of Spire Missouri Inc.
32.3	CEO and CFO Section 1350 Certifications of Spire Alabama Inc.
101.INS(x)	XBRL Instance Document.
101.SCH(x)	XBRL Taxonomy Extension Schema.
101.CAL(x)	XBRL Taxonomy Extension Calculation Linkbase.
101.DEF(x)	XBRL Taxonomy Extension Definition Linkbase.
101.LAB(x)	XBRL Taxonomy Extension Label Linkbase.
101.PRE(x)	XBRL Taxonomy Extension Presentation Linkbase.

* Incorporated herein by reference and made a part hereof. Spire Inc. File No. 1-16681. Spire Missouri Inc. File No. 1-1822. Spire Alabama Inc. File No. 2-38960.

^(x) Attached as Exhibit 101 to this Quarterly Report are the following documents for each registrant formatted in extensible business reporting language (XBRL): (i) Document and Entity Information; (ii) unaudited Condensed Consolidated Statements of Income and Condensed Statements of Income for the three months and six months ended March 31, 2019 and 2018;  (iii) unaudited Condensed Consolidated Statements of Comprehensive Income and Condensed Statements of Comprehensive Income for the three and six months ended March 31, 2019 and 2018; (iv) unaudited Condensed Consolidated Balance Sheets and Condensed Balance Sheets at March 31, 2019, September 30, 2018, and March 31, 2018; (v) unaudited Condensed Consolidated Statements of Shareholders’ Equity and Condensed Statements of Shareholder’s Equity for the three and six months ended March 31, 2019 and 2018; (vi) unaudited Condensed Consolidated Statements of Cash Flows and Condensed Statements of Cash Flows for the six months ended March 31, 2019 and 2018, and (vii) combined unaudited Notes to Financial Statements. We also make available on our website the Interactive Data Files submitted as Exhibit 101 to this Quarterly Report.

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, each of the registrants has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

		Spire Inc.
Date:	May 1, 2019	By:	/s/ Steven P. Rasche
			Steven P. Rasche
			Executive Vice President and Chief Financial Officer
			(Authorized Signatory and Principal Financial Officer)

		Spire Missouri Inc.
Date:	May 1, 2019	By:	/s/ Steven P. Rasche
			Steven P. Rasche
			Chief Financial Officer
			(Authorized Signatory and Principal Financial Officer)

		Spire Alabama Inc.
Date:	May 1, 2019	By:	/s/ Steven P. Rasche
			Steven P. Rasche
			Chief Financial Officer
			(Authorized Signatory and Principal Financial Officer)

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EX-10.1

Exhibit 10.1

SPIRE DEFERRED INCOME PLAN

Amended and Restated Effective January 1, 2019¹

Section 1.Purpose of Plan

The Plan is designed to enhance the value of current compensation paid to certain directors and selected employees by permitting a portion of such compensation to be deferred with such deferrals forming the basis for benefits upon certain payment events.  It is intended that the Plan constitute an unfunded deferred compensation arrangement for the benefit of a select group of management or highly compensated employees (and other service providers) of the Company and its designated subsidiaries and affiliates for purposes of federal income tax laws and the Employee Retirement Income Security Act of 1974, and all documents, agreements or instruments made or given pursuant to the Plan shall be interpreted so as to effect such intent.  

Section 2.  Definitions  

Capitalized terms and phrases used herein which are not otherwise defined shall have the meanings set forth in this Section 2.

“Affiliate” means (i) any person or entity that directly or indirectly controls, is controlled by or is under common control with the Company and/or (ii) to the extent provided by the Company’s Compensation Committee, any person or entity in which the Company has a significant interest.  The term “control” (including, with correlative meaning, the terms “controlled by” and “under common control with”), as applied to any person or entity, means the possession, directly or indirectly, of the power to direct or cause the direction of the management and policies of such person or entity, whether through the ownership of voting or other securities, by contract or otherwise; provided, however, with respect to any deferrals subject to Code Section 409A, the term “Affiliate” shall mean any member of the Company’s control group within the meaning of Treasury Regulation Section 1.409A-1(h)(3), as such may be modified or amended from time to time, by applying the “at least 50 percent” provisions thereof.

“AnnualEquity Compensation” means annual incentive compensation, excluding stock options and stock appreciation rights, payable to a Participant under the Company’s (or its Affiliate’s, as the case may be) equity incentive plan (or other equity incentive arrangement) in which the Participant participates.

“Annual Incentive Compensation” means annual incentive compensation payable to a Participant under the Company’s (or its Affiliate’s, as the case may be) annual incentive plan (or other annual cash bonus arrangement) in which the Participant participates.

¹ Laclede Gas Company previously adopted the Laclede Gas Company Deferred Income Plan and the Laclede Gas Company Deferred Income Plan II (the “Grandfathered Plans”), which are not subject to Section 409A of the Code and the regulations promulgated thereunder (“Code Section 409A”).   As a result of the enactment of Code Section 409A, the Company adopted, as of January 1, 2005, The Laclede Group, Inc. Deferred Income Plan, which governs amounts earned and vested on January 1, 2005 and thereafter.  Effective as of January 1, 2005, no additional amounts were deferrable to the Grandfathered Plans.  This Plan was previously amended and restated effective January 1, 2016.  This Plan has again been amended and restated, effective as of January 1, 2019.

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“Annual Retainer” means the annual cash retainer paid to Directors.  “Annual Retainer” also includes any Director meeting fees, if any.

“Applicable Federal Rate” means the prescribed rates for federal tax purposes published monthly by the Internal Revenue Service.

“Applicable Retirement Age” means the attainment of age 55, except the Applicable Retirement Age for directors means the attainment of age 65.

“Base Salary” means a Participant’s annual base salary level as of the date on which the Participant makes a Deferral Election with respect to the Participant’s base salary in accordance with the terms of the Plan.

“Beneficiary” means the individual or entity named in the Participant’s most recent designation of beneficiary through the process designated by the Plan Administrator.

“Board of Directors” means the board of directors of the Company.

“Change in Control” shall mean the occurrence of one of the following events:

(a)The purchase or other acquisition (other than from the Company) by any person, entity or group of persons, within the meaning of Sections 13(d) or 14(d) of the Exchange Act of 1934 (“Exchange Act”) (excluding, for this purpose, the Company or its Affiliates or any employee benefit plan of the Company or its Affiliates), of beneficial ownership (within the meaning of Rule 13d-3 promulgated under the Exchange Act) of 30% or more of either the Company’s then outstanding shares of common stock or the combined voting power of the Company’s then outstanding voting securities entitled to vote generally in the election of directors (“Company Voting Securities”); or

(b)Individual members of the Board of Directors, as of the Effective Date (the “Incumbent Board”) cease for any reason to constitute at least a majority of the Board of Directors; provided, however, that any individual becoming a director subsequent to the Effective Date whose election, or nomination for election by the Company’s shareholders, was approved by the vote of at least a majority of the directors then comprising the Incumbent Board shall be considered as though such individual were a member of the Incumbent Board, but excluding, as a member of the Incumbent Board, any such individual whose initial election to office occurs as a result of either an actual or threatened election contest (as such term is used in Rule 14a-11 of Regulation 14A promulgated under the Exchange Act) or other actual or threatened solicitation of proxies or consents by or on behalf of a party other than the Board of Directors of the Company; or

(c)Consummation by the Company of a reorganization, merger or consolidation, in each case, with respect to which persons who were the shareholders of the Company immediately prior to such reorganization, merger, or consolidation do not, immediately thereafter, own more than 50% of the surviving entity’s then outstanding shares of common stock or the surviving entity’s combined voting power entitled to vote generally in the election of directors, or of a liquidation or dissolution of the Company or of the sale of at least 80% of the Company’s assets. In making this computation as to any Company shareholder who was also an equity owner in any other party to such reorganization, merger, or consolidation prior to consummating such

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transaction, only the common stock or voting power relating to such shareholder’s equity interests in the Company shall be counted toward the 50% threshold in the prior sentence.

Notwithstanding the foregoing, a Change in Control of the Company shall not be deemed to occur solely because any person acquires beneficial ownership of more than 30% of the Company Voting Securities as a result of the acquisition of Company Voting Securities by the Company that reduces the number of Company Voting Securities outstanding; provided, that, if after such acquisition by the Company such person takes further action to increase the percentage of outstanding Company Voting Securities beneficially owned by such person, a Change in Control of the Company shall then occur.

To the extent that any payment under the Plan constitutes nonqualified deferred compensation that is subject to the provisions of Code Section 409A, a Change in Control shall occur only if such event also constitutes a change in the ownership or effective control of the Company, or in the ownership of a substantial portion of the assets of the Company as those terms are defined under Treasury Regulation §1.409A-3(i)(5).

“Code” means the Internal Revenue Code of 1986, as amended

“Company” means Spire Inc.

“Deferred Amounts” means the aggregate amount of a Participant’s Base Salary, Annual Incentive Compensation, Annual Retainer, and/or Annual Equity Compensation that is deferred by means of Deferral Elections pursuant to Section 4 hereof.

“Deferral Election” means, with respect to any Participant, the whole percentage of Base Salary, Annual Incentive Compensation, Annual Retainer, and/or Annual Equity Compensation that the Participant elects to defer to the Plan pursuant to Section 4 hereof.

“Director” means member of the Board of Directors of the Company or any Affiliate that has adopted the Plan who is not an Employee of the Company or any Affiliate.  

“Disability” has the meaning set forth in Code Section 409A.  Determinations of Disability will be made by the Plan Administrator (or its designee).  

“Distribution Accounts” means the Retirement Distribution Account, the Separation Distribution Account, the In-Service Distribution Account, and/or the Flexible Distribution Account maintained on the books of the Company for a Participant under this Plan.  A Participant’s Distribution Accounts shall be bookkeeping accounts only and shall not constitute or be treated as reflecting a trust fund or other type of fund of any kind.

“Earnings Credits” means the amounts credited on a Participant’s Deferred Amounts as set forth in Section 5.

“Effective Date” means January 1, 2019.

“Employee” means any common-law employee of the Company or any Affiliate, whether or not an Officer or Director, but excluding any person serving only in the capacity of a Director.

“ERISA” means the Employee Retirement Income Security Act of 1974.

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“Flexible Distribution Account” means the bookkeeping account maintained by the Company on behalf of each Participant with respect to any Deferred Amounts that the Participant elects to be distributed as of a specified date in accordance with Section 6(d).

“401(k) Plan” means the Spire Employee Savings Plan or any predecessor plan, replacement plan or successor plan thereto.

“In-Service Distribution Account” means the bookkeeping account maintained by the Company on behalf of each Participant with respect to any Deferred Amounts that the Participant elects to be distributed as of a specified date in accordance with Section 6(c).

“In-Service Distribution” means a distribution of a Participant’s Deferred Amounts and Earnings Credits completed during a Participant’s employment.  

“Maximum Base Salary Deferral Percentage” means (i) 15% for Plan Years commencing prior to January 1, 2015, (ii) 50% for Plan Years commencing on or after January 1, 2015, and (iii) 80% for Plan Years commencing on or after January 1, 2020; provided, that such Maximum Base Salary Deferral Percentage may be altered by the Company’s Board of Directors (or its designee) at any time and from time to time.  

“Minimum Fixed Rate” means the applicable Earnings Credit rate set forth in Section 5(b)(i)(A) in effect for the Plan Year in which the Participant’s termination occurs, but in no event less than seven percent (7%).

“Moody’s Rate” means the composite average yield on corporate bonds as published by Moody’s Investor Service for the month of the October falling in the immediately prior Plan Year.  

“Officers” means any Employee designated as an “officer” of the Company or any Affiliate that has adopted the Plan.  

“Participant” means any Employee or Director who satisfies the eligibility requirements set forth in Section 3 and completes a Deferral Election in accordance with the terms of the Plan.

“Performance Period” means the period used to measure performance under the Company’s annual incentive plan and equity incentive plan, which shall be no less than a twelve (12) month period.  As of the Effective Date, the annual incentive plan Performance Period is the twelve (12) month period ending on September 30 of each calendar year and the equity incentive plan Performance Period is the thirty-six (36) month period ending on September 30 of each calendar year.  

“Plan” means the Spire Deferred Income Plan, as amended and restated from time to time.

“Plan Administrator” means the Company.

“Plan Year” means the 12-month period beginning January 1 and ending December 31.  

“Present Value Benefit” means the sum of the Participant’s Termination Balance and the present value of the Earnings Credits that would have been made or earned on such Termination Balance through age 65 (or age 71 for Directors) using a discount rate equal to the Minimum Fixed Rate.

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“Retirement Distribution Account” means the bookkeeping account maintained by the Company on behalf of each Participant with respect to any Deferred Amounts that the Participant elects to be distributed upon the Participant’s Termination of Employment following his or her Applicable Retirement Age in accordance with Section 6(a).

“Separation Distribution Account” means the bookkeeping account maintained by the Company on behalf of each Participant with respect to any Deferred Amounts that the Participant elects to be distributed upon the Participant’s Termination of Employment in accordance with Section 6(b).

“2015 Termination Balance” means Deferred Amounts through December 31, 2015 plus the Earnings Credits on such Deferred Amounts accrued as of the Participant’s date of Termination of Employment.

“Termination Balance” means Deferred Amounts on and after January 1, 2016 plus the Earnings Credits on such Deferred Amounts accrued as of the Participant’s date of Termination of Employment.

“Termination of Employment” means the Participant has incurred a “separation from service” as defined in Code Section 409A, including the default presumptions thereof.

Section 3.Eligibility

Participation in the Plan will be made available to the Company’s Directors and Officers, as well as key Employees who are at a salary grade of level 11 or higher at the time the Plan Administrator accepts Deferral Elections for each Plan Year or Performance Period, and key Employees who were previous Participants in the Plan.  A Director, Officer or key Employee who becomes eligible to participate in the Plan during a Plan Year shall enter the Plan on the first quarterly entry date following the date on which he or she became eligible to participate.

Section 4.Deferral Elections

Unless otherwise determined by the Company’s Board of Directors prior to the commencement of a Plan Year, the following shall apply regarding deferrals under the Plan:  

(a)Director Deferrals:  Directors may defer (i) up to 100% of Annual Retainers, and (ii) up to 100% of Annual Equity Compensation.  No Deferral Election shall be permitted to the extent such Deferral Election is inconsistent with Code Section 409A.  

(b)Employees’ and Officers’ Deferrals:  Participants other than Directors may defer (i) a percentage of Base Salary that shall not exceed the Maximum Base Salary Deferral Percentage for the applicable Plan Year, (ii) up to 90% of Annual Incentive Compensation, and (iii) up to 100% of Annual Equity Compensation.  Notwithstanding the foregoing, no Deferral Election shall be permitted to the extent such Deferral Election is inconsistent with Code Section 409A.  

(c)Deferral Election Rules:  

(i)General.  Participants shall designate the amount of scheduled deferrals for the upcoming Plan Year in which deferrals are allowed and such designated deferral amounts shall not be changed unless (A) such change complies with Code Section 409A,

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(B) such change is approved by the Plan Administrator, and (C) such change applies only to deferrals of compensation earned after the date of the change, and amounts already deferred under the Plan shall not be refunded or returned until payable as otherwise provided in this Plan.

(ii)Form and Content.  Each Deferral Election shall be made in the manner prescribed by the Plan Administrator, and shall specify (A) the sources of the Deferred Amounts (e.g., Base Salary, Annual Incentive Compensation, Annual Retainer, Annual Equity Compensation), (ii) the specified percentage of each source to be deferred, (iii) the account to which the Deferred Amounts are to be credited.

(iii) Distribution Accounts.  A Participant may elect to have Deferred Amounts credited to the following accounts: Separation Distribution Account, Retirement Distribution Account, and/or Flexible Distribution Account. Effective January 1, 2018, new Participants will not be able to elect to make deferrals to a Retirement Distribution Account. The In-Service Distribution Account was available for deferrals through December 31, 2017, but no In-Service Distributions may be elected for deferrals made on or after January 1, 2018. For deferrals made on and after January 1, 2018, the Participant may elect to split deferrals of Base Salary, Annual Incentive Compensation, Annual Retainer, and Annual Equity Compensation among up to five (5) Flexible Distribution Accounts with a payment date for each Flexible Distribution Account elected by the Participant at the time of the deferral election. Each Distribution Account is payable as described in Section 6.

(iv)Election Timing.  Each Deferral Election shall be made at such time as is required by the Plan Administrator, which in all events shall be made prior to the beginning of the applicable Plan Year or Performance Period for which the Deferral Election is made. Notwithstanding the foregoing, if the Participant’s Annual Incentive Compensation or Annual Equity Compensation constitutes “performance based compensation” within the meaning of Code Section 409A, then such election may be made no later than the sixth (6^th) month of the Performance Period to which such Annual Incentive Compensation or Annual Equity Compensation relates, so long as the Plan Administrator expressly permits such election (which it may, but is not obligated to, permit) and such compensation is not readily ascertainable at the time of such election.  

(v)Irrevocability. Each Deferral Election shall be irrevocable for the entire Plan Year or Performance Period for which it is made.

Section 5.Earnings on Deferrals

(a)Deferral Timing for Earnings Credits.  For purposes of calculating Earnings Credits on Deferred Amounts, Base Salary deferrals will be deemed to have been made at the time the amount is deferred. Annual Incentive Compensation and Annual Retainer deferrals will be deemed to have been made as of the date on which the Annual Incentive Compensation or Annual Retainer would have been paid if it were not deferred. Annual Equity Compensation deferrals will be deemed to have been made as of the date on which the Annual Equity Compensation is granted.  

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(b)Earnings Credits on Deferred Amounts through December 31, 2015

(i)A Participant must make a one-time election with respect to Deferred Amounts, and any accumulated Earnings Credits on such Deferred Amounts, credited to the Participant’s account through December 31, 2015 to credit Earnings Credits on such Deferred Amounts for future Plan Years based on the following investment methods:

(A)The Deferred Amounts for the applicable Plan Year, along with any Deferred Amounts for any prior Plan Year, and any accumulated Earnings Credits on such Deferred Amounts, will be credited Earnings Credits throughout the Plan Year after the deferrals have deemed to occur in accordance with Section 5(a) as set forth in the table below.  

Age of Beginning of Plan Year	Earnings Credit Rate
Under 55	Moody’s Rate + 1%, provided that if this rate is less than 6%, then such rate shall be increased such that such rate equals 6%
Ages 55-57	Moody’s Rate + 2%, provided that if this rate is less than 7%, then such rate shall be increased such that such rate equals 7%
Ages 58-60	Moody’s Rate + 2%, provided that if this rate is less than 8%, then such rate shall be increased such that such rate equals 8%
Age 61 and older	Moody’s Rate + 3%, provided that if this rate is less than 9%, then such rate shall be increased such that such rate equals 9%

(B)The Plan Administrator will select a menu of investment options based on or similar to the investment options available under the 401(k) Plan for the hypothetical investment of the Deferred Amounts and any accumulated Earnings Credits on such Deferred Amounts. Participants shall direct the hypothetical investment of their Distribution Accounts among the investment options designated by the Plan Administrator as though such Distribution Accounts held actual assets. To the extent one of these investment options is a fund hypothetically invested in Company stock, dividends shall be credited on all hypothetical shares held in such fund(s). Dividends credited on any unvested equity deferrals shall be contributed to the Participant’s Distribution Account(s) in accordance with the deferral election made by the Participant pertaining to such equity deferral. Effective May 1, 2019, no dividends paid on equity deferrals may be reinvested in any Company stock fund(s) under the Plan.

(C)Deferred Amounts and any accumulated Earnings Credits on such Deferred Amounts will be credited with a fixed interest rate using the Moody’s Rate, subject to a maximum Earnings Credit equal to 120% of the long-term Applicable Federal Rate for the month of the October falling in the immediately prior Plan Year.  

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(c) Earnings Credits on Amounts Deferred on and After January 1, 2016

(i)A Participant may make an election with respect to Deferred Amounts credited to the Participant’s account on and after January 1, 2016 to credit Earnings Credits based on the following investment methods:

(A)The Plan Administrator will select a menu of investment options based on or similar to the investment options available under the 401(k) Plan for the hypothetical investment of the Deferred Amounts and any accumulated Earnings Credits on such Deferred Amounts. Participants shall direct the hypothetical investment of their Distribution Accounts among the investment options designated by the Plan Administrator as though such Distribution Accounts held actual assets. To the extent one of these investment options is a fund hypothetically invested in Company stock, dividends shall be credited on all hypothetical shares held in such fund(s). Dividends credited on any unvested equity deferrals shall be contributed to the Participant’s Distribution Account(s) in accordance with the Deferral Election made by the Participant pertaining to such equity deferral. Effective May 1, 2019, no dividends paid on equity deferrals may be invested in any Company stock fund(s) under the Plan.

(B)Deferred Amounts and any accumulated Earnings Credits on such Deferred Amounts will be credited with a fixed interest rate using the Moody’s Rate, subject to a maximum Earnings Credit equal to 120% of the long-term Applicable Federal Rate for the month of the October falling in the immediately prior Plan Year.  

(ii)Investment elections for Deferred Amounts credited to the Participant’s account on and after January 1, 2016 may be changed at any time in accordance with administrative procedures established for the Plan.

(iii)The Company and Plan Administrator may prescribe rules regarding investment of Deferred Amounts. In the event a Participant does not direct the investment of any portion of his or her Distribution Accounts, such undirected portion shall be deemed to be invested in one or more default investment funds or other measures as the Plan Administrator determines. Effective June 1, 2019, Deferred Amounts of Base Salary, Annual Incentive Compensation and Annual Retainers may not be invested in any Company stock fund available under the Plan.  

(iv)Annual Equity Compensation deferred pursuant to Section 4 shall be deemed to be hypothetically invested in the Company stock fund, and when distributed, shall be distributed in cash. Investment diversification from the Company stock fund to a different investment is not permitted for Directors. Investment diversification from the hypothetical Company stock fund to a different investment is not permitted for Participants other than Directors on such Deferred Amounts until six (6) months after the Deferred Amounts vest in accordance with the terms of the equity grants. The value of such hypothetical Company stock shall be adjusted from time to time to reflect changes to actual Company stock, as the Plan Administrator shall determine, subject to the oversight of the Company’s Compensation Committee. Deferrals of Annuity Equity Compensation shall be accounted for separately from any other Deferred Amounts that are hypothetically invested in the Company stock fund. The Company and Plan

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Administrator may prescribe additional rules and requirements related to deferral and investment of Annual Equity Compensation.

(d)Applicable Interest Rate for Installment Payments.  Notwithstanding the foregoing, the interest rate that will apply to installment payments paid pursuant to the terms of the Plan will be the Minimum Fixed Rate. The foregoing notwithstanding, in the event such installment payments commence prior to the Participant’s Termination of Employment or if the Participant’s Termination of Employment occurs prior to the Participant reaching the Applicable Retirement Age, the interest rate that will apply to the installment payment will be based on the market-based investments as described in Section 5(c).

(e)401(k) Restorative Contribution. If a Participant participates in the Company’s 401(k) Plan and makes the maximum deferrals to the 401(k) Plan during a Plan Year that are permitted under Code Section 402(g) or the maximum elective deferral permitted under the terms of the 401(k) Plan, the Participant may be eligible to be credited with a “401(k) Restorative Contribution” for such Plan Year as described below.

(i)Unless otherwise determined by the Plan Administrator, with respect to each Plan Year, each such Participant who makes a deferral election under this Plan with respect to his or her Base Salary and/or Annual Incentive Compensation for such Plan Year, may be credited with a 401(k) Restorative Contribution. The 401(k) Restorative Contribution shall be equal to the amount of the Company matching contribution that would have been made to the Participant’s 401(k) Plan account if the Deferred Amounts had not been deferred and were instead includible in compensation for purposes of calculating the 401(k) Plan match, subject to the limits established by Code Section 401(a)(17).

(ii)The 401(k) Restorative Contribution shall be allocated to the following account no later than March 31 of the Plan Year following the Plan Year in which the deferrals are made:

(A)The Retirement Distribution Account, described in Section 6(a), for Participants who have such account.

(B)The Separation Distribution Account, described in Section 6(b), for Participants who do not have a Retirement Distribution Account.

(iii)The 401(k) Restorative Contribution shall be invested in accordance with the Participant’s investment elections in place on the date the 401(k) Restorative Contribution is made to the Plan. A Participant may change such investment elections in accordance with Section 5(c).

(iv)Any 401(k) Restorative Contributions made under this Section 5(e) shall be credited only for that portion of Base Salary that relates to payroll periods commencing on or after January 1, 2019 and for Annual Incentive Compensation paid on or after January 1, 2019.

Section 6. Payment of Benefits

(a)Retirement Distribution Account.  Except as provided under Section 6(b) below, if a Participant terminates employment with the Company and its Affiliates on or after the

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Participant’s Applicable Retirement Age, the Participant shall be entitled to receivebenefits credited to the Participant’s Retirement Distribution Account as described in this Section 6(a).

(i)Amount and Form of Distribution. The Participant will receive the Termination Balance in his or her Retirement Distribution Account payable in fifteen (15) substantially equal annual installments (each not being treated separately for any purpose under Code Section 409A). The Participant may change the form of payment in accordance with Section 9 of the Plan.  

(ii)Interest on Installment Payments.  The installments will be adjusted for interest as set forth in Section 5(d) through the installment period.  

(iii)Payments in the Event of Death. In the event that the Participant dies after the commencement of his installment payments but before all 15 installments have been paid, the remaining balance shall be paid in the form of a lump sum as soon as practicable following the Participant’s death to such Participant’s Beneficiary, or, if no Beneficiary has been designated, to the Participant’s estate.

(iv)Termination of Employment Prior to Applicable Retirement Age.  Upon any other Termination of Employment prior to the Applicable Retirement Age, other than Termination of Employment due to an Intervening Event as set forth in Section 6(e), the Participant shall receive a lump sum benefit equal to (i) for amounts deferred through December 31, 2015, the Participant’s Deferred Amounts plus the Moody’s Rate that applied to such Deferred Amounts; and (ii) for amounts deferred on and after January 1, 2016, the Participant’s Termination Balance.

(b)Separation Distribution Account. If a Participant has a Termination of Employment other than due to an Intervening Event as set forth in Section 6(e), the Participant shall be entitled to receive benefits credited to the Participant’s Separation Distribution Account as described in this Section 6(b).

(i)Amount and Form of Distribution.  The Separation Distribution Account shall be distributed in the form elected by the Participant at the time the Deferral Election is made. The Participant may change the time or form of payment in accordance with Section 9 of the Plan. The available forms include:

(A)Annual Installments. The Participant may elect any number of annual installments between two (2) and fifteen (15). If a Participant does not elect the form of payment of his or her Separation Distribution Account, the Separation Distribution Account shall be distributed in fifteen (15) annual installments.

(1)In the event the Participant’s installments commence following the Participant’s Termination of Employment but prior to reaching the Applicable Retirement Age, the amount of each installment shall be calculated by applying a fraction to the sum of the Participant’s 2015 Termination Balance and Termination Balance, as adjusted for Earnings Credits as of the valuation date determined by the Plan Administrator (i.e., 1/15^th for the first installment, 1/14^th for the second installment, etc.) with the last installment being the remainder of the sum of the Participant’s 2015 Termination Balance and Termination Balance.

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The interest rate that applies to such installments will be based on the market-based investments as described in Section 5(c).

(2)In the event the Participant’s installments commence following the Participant’s Termination of Employment following reaching the Applicable Retirement Age, the installments will be paid in substantially equal amounts, and the interest rate that will apply to such installments is the Minimum Fixed Rate as described in Section 5(d).  

(B)Lump Sum.  The Participant may elect to receive a single lump sum payment.

(ii)Interest on Installment Payments. The installments will be adjusted for interest as set forth in Section 5(d) through the installment period.  

(iii)Payments in the Event of Death. In the event that the Participant dies after the commencement of his installment payments but before all 15 installments have been paid, the remaining balance shall be paid in the form of a lump sum as soon as practicable following the Participant’s death to such Participant’s Beneficiary, or, if no Beneficiary has been designated, to the Participant’s estate.

(iv)Intervening Events. In the event of the Participant’s Termination of Employment due to an Intervening Event as set forth in Section 6(e), the Participant’s Separation Distribution Account shall be distributed as set forth in Section 6(e) for distributions related to those events.

(c)In-Service Distribution Account. If a Participant elected to have Deferred Amounts credited to an In-Service Distribution Account, the Participant shall be entitled to receive benefits credited to the Participant’s In-Service Distribution Account as described in this Section 6(c).

(i)Amount and Form of Distribution. The amount of a Participant’s In-Service Distribution shall be equal to that portion of the Deferred Amounts with respect to which the Participant has made such an election, adjusted for Earnings Credits as set forth in Section 5.  The In-Service Distribution will be a lump sum benefit, and the Participant may elect a distribution on January 31 of the year that is five (5) years, ten (10) years, or fifteen (15) years after the end of the Plan Year in which the Deferred Amount is deferred. A Participant may change the distribution date of the In-Service Distribution Account by submitting a new election in accordance with Section 9 of the Plan. 

(ii)Termination of Employment Prior to In-Service Distribution Date. In the event the Participant has a Termination of Employment for any reason prior to receiving an In-Service Distribution, the distribution will be paid in a lump sum in accordance with Section 8.  

(d)Flexible Distribution Account.  If a Participant elected to have Deferred Amounts credited to one or more Flexible Distribution Accounts, the Participant shall be entitled to receive benefits credited to the Participant’s Flexible Distribution Account(s) as described in this Section 6(d).

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(i)Time of Distribution. At the time of the Deferral Election, the Participant must elect a payment date for each Flexible Distribution Account. Such payment date may not be earlier than a date occurring within the third calendar year after the deferral election, including the Plan Year in which the Deferred Amount is deferred.The Participant may defer the date of distribution for any Flexible Distribution Account in accordance with Section 9 of the Plan.Unless the Plan Administrator by administrative action permits otherwise, the payment date(s) for all Flexible Distribution Accounts shall be in January of the applicable calendar year.

(ii)Form of Distribution. The Flexible Distribution Account shall be distributed in the form elected by the Participant at the time the Deferral Election is made.  The available forms include:

(A)Annual Installments. The Participant may elect any number of annual installments between two (2) and fifteen (15).  

(1)In the event the Participant’s installments commence prior to the Participant’s Termination of Employment, the amount of each installment shall be calculated by applying a fraction to the Participant’s Termination Balance as adjusted for Earnings Credits as of the valuation date determined by the Plan Administrator (i.e., 1/15^th for the first installment, 1/14^th for the second installment, etc.) with the last installment being the remainder of the Participant’s Termination Balance. The interest rate that will apply to such installments will be based on the market-based investments as described in Section 5(c).

(2)In the event the Participant’s installments commence following the Participant’s Termination of Employment but prior to reaching the Applicable Retirement Age, the amount of each installment shall be calculated by applying a fraction to the Participant’s Termination Balance as adjusted for Earnings Credits as of the valuation date determined by the Plan Administrator (i.e., 1/15^th for the first installment, 1/14^th for the second installment, etc.) with the last installment being the remainder of the Participant’s Termination Balance. The interest rate that applies to such installments will be based on the market-based investments as described in Section 5(c).

(3)In the event the Participant’s installments commence following the Participant’s Termination of Employment following reaching the Applicable Retirement Age, the installments will be paid in substantially equal amounts, and the interest rate that will apply to such installments is the Minimum Fixed Rate as described in Section 5(d).

(B)Lump Sum.  The Participant may elect to receive a single lump sum payment.

(iii)Termination of Employment Prior to Payment Date. In the event the Participant has a Termination of Employment prior to the payment date for one or more Flexible Distribution Accounts, the payment date for the Flexible Distribution Account will not be altered, except as provided in Section 6(d)(iv).

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(iv)Intervening Events. In the event of the Participant’s Termination of Employment due to an Intervening Event as set forth in Section 6(e), the Participant’s Separation Distribution Account shall be distributed as set forth in Section 6(e) for distributions related to those events.

(e)Intervening Events. The following events shall be considered “Intervening Events” that may trigger payments as described in this Section 6.

(i)Benefit Following Change in Control.If a Participant’s employment with the Company and its Affiliates terminates at any age within two years following a Change in Control, then, notwithstanding anything to the contrary in this Section 6, the Participant shall be entitled to (A) for amounts deferred through December 31, 2015, a lump sum benefit equal to the greater of (1) the Present Value Benefit; or (2) the 2015 Termination Balance, and (B) for amounts deferred on or after January 1, 2016, a lump sum benefit equal to the Termination Balance.

(ii)Benefit Upon Participant’s Death Prior To Applicable Retirement Age.  If a Participant’s employment with the Company and its Affiliates terminates due to the Participant’s death prior to his Applicable Retirement Age, the Participant’s Beneficiary, or, if no Beneficiary is on file, the Participant’s estate, shall be entitled to (A) for amounts deferred through December 31, 2015, a lump sum benefit equal to the greater of (1) the Present Value Benefit; or (2) the 2015 Termination Balance, and (B) for amounts deferred on or after January 1, 2016, a lump sum benefit equal to the Termination Balance.

(iii)Benefit Upon Participant’s Death On Or After Applicable Retirement Age.  If a Participant’s employment with the Company and its Affiliates terminates due to the Participant’s death on or after his Applicable Retirement Age, the Participant’s Beneficiary, or, if no Beneficiary is on file, the Participant’s estate, shall be entitled to (A) for amounts deferred through December 31, 2015, a lump sum benefit equal to the greater of (1) the Present Value Benefit; or (2) the 2015 Termination Balance with deferrals projected from the date of death to the end of the Plan Year in which the death occurred, and (B) for amounts deferred on or after January 1, 2016, a lump sum benefit equal to the Termination Balance.

(iv)Benefit Upon Participant’s Disability Prior To Applicable Retirement Age.  Upon any other Termination of Employment due to Disability prior to his Applicable Retirement Age, the Participant shall receive (A) for amounts deferred through December 31, 2015, a lump sum benefit equal to the greater of (1) the Present Value Benefit; or (2) the 2015 Termination Balance, and (B) for amounts deferred on or after January 1, 2016, a lump sum benefit equal to the Termination Balance.

(v)Benefit Upon Participant’s Disability On Or After Applicable Retirement Age.  Upon any other Termination of Employment due to Disability on or after his Applicable Retirement Age, the Participant shall receive (A) for amounts deferred through December 31, 2015, a lump sum benefit equal to the greater of (1) the Present Value Benefit; or (2) the 2015 Termination Balance with Earnings Credits projected to the end of the Plan Year in which the disability occurred, and (B) for amounts deferred on or after January 1, 2016, a lump sum benefit equal to the Termination Balance.

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(f)Unforeseeable Emergency.  Notwithstanding the distribution elections made by a Participant in accordance with this Section 6, in the event of an Unforeseeable Emergency, a Participant may apply for distribution of his Distribution Accounts of an amount necessary to satisfy the emergency.  An “Unforeseeable Emergency” is a severe financial hardship to the Participant resulting from: (i) an illness or accident of the Participant, the Participant’s spouse, the Participant’s Beneficiary or the Participant’s dependent (as defined in Code Section 152, without regard to section 152(b)(1), (b)(2), and (d)(1)(B)); (ii) loss of the Participant’s property due to casualty (including the need to rebuild a home following damage to a home not otherwise covered by insurance, for example, not as a result of a natural disaster); or (iii) other similar extraordinary and unforeseeable circumstances arising as a result of events beyond the control of the Participant.  For example, the imminent foreclosure of or eviction from the service provider’s primary residence, the need to pay for medical expenses, including non-refundable deductibles, as well as for the costs of prescription drug medication and the need to pay for the funeral expenses of a spouse, a beneficiary, or a dependent (as defined in Code section 152, without regard to section 152(b)(1), (b)(2), and (d)(1)(B)) may also constitute an Unforeseeable Emergency.  Conversely, cash needs arising from events such as the purchase of a residence or education expenses for a child, shall not be considered unforeseeable or the result of an emergency.  The Plan Administrator shall determine whether a Participant is faced with an Unforeseeable Emergency based on all relevant facts, circumstances and supporting evidence presented to the Plan Administrator in the Participant’s application.

Distribution on account of Unforeseeable Emergency may not be made to the extent that such emergency is or may be relieved through reimbursement or compensation from insurance or otherwise, by liquidation of the Participant’s assets, to the extent the liquidation of such assets would not cause severe financial hardship, or by cessation of deferrals under the Plan.  Distributions because of an Unforeseeable Emergency must be limited to the amount reasonably necessary to satisfy the emergency need (which may include amounts necessary to pay any Federal, state, local, or foreign income taxes or penalties reasonably anticipated to result from the distribution).  The Plan Administrator shall determine the amount reasonably necessary to satisfy the Unforeseeable Emergency based on all relevant facts, circumstances and supporting evidence presented to the Plan Administrator in the Participant’s application, and shall take into account any amount that would available if the Plan Administrator were to cancel the Participant’s then current deferral election upon an Unforeseeable Emergency distribution. The Plan Administrator may, but is not required to, cancel a Participant’s then current deferral election as a condition of an Unforeseeable Emergency distribution.

Distribution on account of Unforeseeable Emergency shall be made in the form of a lump sum distribution, and the Participant’s Distribution Accounts shall be reduced by the amount distributed.

(g)Cashout of Small Distribution Accounts.  Notwithstanding any Deferral Election then in effect to the contrary, if, as of a Participant’s payment date, the combined value of his or her Distribution Accounts does not exceed the dollar threshold described in Code Section 402(g)(1)(B), as such amount is adjusted from time to time ($19,000 in 2019), the combined amount in all his or her Distribution Accounts shall be distributed in the form of a single lump sum payment as of such payment date.

Section 7.280G Limits

To the extent a payment or distribution made under this Plan (together with the Grandfathered Plan or any other plan, policy, or arrangement) is determined to be a parachute payment under

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Code Section 280G, and any such payment or distribution of any portion of the benefit described above would trigger any adverse tax consequences under Code Sections 280G or 4999, such as loss of deductions to the Company or its Affiliate, or the payment of an additional excise tax by the Participant, or both, then the benefit hereunder shall be reduced only to the extent necessary to avoid such adverse tax consequences.Parachute payments and/or any cutback amount, and any other determination with respect to Code Section 280G shall be determined by the Company in good faith.

Section 8.  Timing of Payment of Benefits

Benefits under this Plan shall become payable within 31 days of the applicable payment event. In the event a benefit is paid in installments, the first installment shall be paid within 31 days of the applicable payment event; thereafter, installment payments shall be paid in the month following the anniversary month of the applicable payment event.  Notwithstanding anything in this Plan to the contrary, if it is determined that the Participant is a “specified employee” as defined in Code Section 409A, then payments (or portion thereof) under this Plan shall commence on the first payroll date following the sixth month after the month in which Participant’s Termination of Employment occurs (with the first such payment being equal to the aggregate benefit the Participant would have received during such period if no such payment delay had been imposed, together with interest on such delayed amount during the period of such restriction at a rate, per annum, equal to the Minimum Fixed Rate in effect as of such Termination of Employment).  

Section 9.Change in Time/Form of Payment  

The Company (or any participating Affiliate) may permit a Participant to elect to change the time and/or form of payment, subject to the following conditions: (a) the election may not take effect until at least twelve (12) months after the date on which the election is made; (b) except with respect to payments made on account of a Participant’s death, payments of the benefit which a Participant is eligible to receive must not commence earlier than five (5) years from the date of the Participant’s originally scheduled payment date; (c) the election must be made at least twelve (12) months prior to the originally scheduled payment date; and (d) no election may defer the payment date of a Separation Distribution Account, Retirement Distribution Account, or Flexible Distribution Account beyond the fifteenth (15^th) anniversary of the Participant’s Termination of Employment.  Notwithstanding the foregoing, such election shall only be permitted to the extent it complies with Code Section 409A. During the time period for which the payment of the Participant’s benefit is delayed, the Participant’s benefit shall accrue interest at a rate, per annum, equal to the applicable rate described in Section 5(d). In the event the Minimum Fixed Rate applies to the benefit, the rate shall be based on the Plan Year in which the Termination of Employment occurs.

Section 10.Miscellaneous

(a)The Company’s Board of Directors may amend or terminate this Plan at any time, and from time to time.  Notwithstanding the above, the Plan may not be terminated and payments accelerated thereunder contrary to the provisions of Code Section 409A.  

(b)The Plan Administrator, with the approval of the Committee, may delegate administrative authority to any person or third-party vendor. The Plan Administrator shall have full power and discretion to interpret the Plan and related documents, to resolve ambiguities, inconsistencies and omissions, to determine any question of fact, and to determine the rights and benefits, if any, of any Participant, in accordance with the provisions of the Plan. The Plan

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Administrator may designate one or more persons or agents to carry out any of all of the duties hereunder.

(c)Participation in the Plan shall in no way be deemed to constitute a right to continue in the employment of the Company or any Affiliate thereof.  

(d)Any claim for benefits under this Plan shall be submitted to the Plan Administrator.  If the Plan Administrator denies the claim for benefits, in whole or in part, the Plan Administrator shall notify the claimant of the adverse benefit determination no later than ninety (90) days after receipt of the claim by the Plan, unless the Plan Administrator determines that special circumstances require an extension of time, which may not exceed a further ninety (90) days, for processing the claim and so notifies the claimant in writing prior to the termination of the initial ninety (90) day period.  In the event that a claim for benefits under this Plan has been denied by the Plan Administrator, the decision shall be subject to review by the Company upon written request of the claimant made to the Plan Administrator within sixty (60) days of receipt by the claimant of notice of such denial.  Upon request and free of charge, the Company shall provide the claimant with reasonably access to all pertinent information, documents and records with respect to the claim.  The decision of the Company upon review shall be in writing and shall state the reasons for the decision and the provisions of this Plan on which the decision is based.  Such decision shall be made within sixty (60) days after the Company’s receipt of written request for such review unless a hearing is necessitated to determine the facts and circumstances, in which event a decision shall be rendered as soon as possible, but not later than one hundred and twenty (120) days after receipt of the claimant’s written request for review.  The decision of the Company upon review shall be final and binding on all persons.

(e)The illegality of any provision of this Plan shall not affect the enforceability of any other provision of this Plan.  The Plan shall be construed in accordance with and governed by the substantive laws of the State of Missouri without regard to conflict of law rules.

(f)All payments made under the Plan to a Participant or his or her Beneficiary shall be subject to withholding of such amounts as the Company reasonably may determine are required to be withheld pursuant to any applicable Federal, state, local, or foreign law or regulation.

(g)The rights of Participants and their Beneficiaries to benefits under the Plan shall be solely those of unsecured general creditors of the Company.  The Plan constitutes merely a promise by the Company to make benefit payments in the future.  The Plan is intended to be unfunded for purposes of the Code and Title I of ERISA.  Notwithstanding the foregoing, the Company may contribute to a trust fund under a “rabbi trust” agreement between the Company and a banking organization, if such a trust fund is hereafter established, and payments under the Plan may be made from any such trust fund.  Any asset acquired or held by the Company in connection with the Company’s liabilities under the Plan shall not be deemed to be security for the performance of the Company’s obligations under this Plan.

(h)The rights and interests of Participants and their beneficiaries to benefit payments under the Plan shall not be subject in any manner to anticipation, alienation, sale, transfer, assignment, pledge, encumbrance, attachment or garnishment by creditors of the Participants or their beneficiaries, and any such rights and interests under the Plan shall not be liable for or subject to any obligation or liability of the Participant or beneficiary.

16

(i)Notwithstanding any other provision of the Plan, this Plan is intended to comply with Code Section 409A and shall at all times be interpreted in accordance with such intent that amounts that may become payable to Participant shall not be taxable to such Participants until such amounts are paid in accordance with the terms of the Plan.  To the extent that any provision of the Plan violates Code Section 409A such that amounts would be taxable to a Participant prior to payment or otherwise subject to penalties under Code Section 409A, such provision shall be automatically reformed or stricken to preserve the intent hereof.  Notwithstanding the foregoing, in no event will the Company or any of its Affiliates have any liability for any failure of the Plan to satisfy Code Section 409A and such parties do not guarantee that the Plan complies with Code Section 409A.

(j)Notwithstanding the payment schedule set forth above, amounts may be paid under the Plan prior to the scheduled payment date set forth above, if and to the extent such amounts become subject to FICA taxes under Code Sections 3101, 3121(a) or 3121(v), and/or withholding taxes under Code Section 3401 or the corresponding provisions of any state, local or foreign law as a result of the payment of such FICA taxes; provided, that, such payment shall not exceed the FICA amount and such other amount required to be withheld on account of the payment of such FICA amount.  Further, a payment will be made under the Plan at any time the Plan fails to meet the requirements of Code Section 409A; provided, that, such payment shall not exceed the amount required to be included in income as a result of the failure to comply with Code Section 409A.

(k)Except as contemplated in Section 10(g) hereof, all credits and contributions, once credited, shall not be subject to forfeiture.  

17

EX-31.1

Exhibit 31.1

CERTIFICATION

I, Suzanne Sitherwood, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Spire Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:	May 1, 2019	Signature:	/s/ Suzanne Sitherwood
			Suzanne Sitherwood
			President and Chief Executive Officer

CERTIFICATION

I, Steven P. Rasche, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Spire Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:	May 1, 2019	Signature:	/s/ Steven P. Rasche
			Steven P. Rasche
			Executive Vice President and Chief Financial Officer

EX-31.2

Exhibit 31.2

CERTIFICATION

I, Steven L. Lindsey, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Spire Missouri Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:	May 1, 2019	Signature:	/s/ Steven L. Lindsey
			Steven L. Lindsey
			Chief Executive Officer

CERTIFICATION

I, Steven P. Rasche, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Spire Missouri Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:	May 1, 2019	Signature:	/s/ Steven P. Rasche
			Steven P. Rasche
			Chief Financial Officer

EX-31.3

Exhibit 31.3

CERTIFICATION

I, Steven L. Lindsey, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Spire Alabama Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:	May 1, 2019	Signature:	/s/ Steven L. Lindsey
			Steven L. Lindsey
			Chief Executive Officer

CERTIFICATION

I, Steven P. Rasche, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Spire Alabama Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:	May 1, 2019	Signature:	/s/ Steven P. Rasche
			Steven P. Rasche
			Chief Financial Officer

EX-32.1

Exhibit 32.1

Section 1350 Certification

Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to §906 of the Sarbanes-Oxley Act of 2002, I, Suzanne Sitherwood, President and Chief Executive Officer of Spire Inc., hereby certify that:

(a) To the best of my knowledge, the accompanying report on Form 10-Q for the period ended March 31, 2019, fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(b) To the best of my knowledge, the information contained in the accompanying report on Form 10-Q for the period ended March 31, 2019, fairly presents, in all material respects, the financial condition and results of operations of Spire Inc.

Date:	May 1, 2019	Signature:	/s/ Suzanne Sitherwood
			Suzanne Sitherwood
			President and Chief Executive Officer

Section 1350 Certification

Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to §906 of the Sarbanes-Oxley Act of 2002, I, Steven P. Rasche, Executive Vice President and Chief Financial Officer of Spire Inc., hereby certify that:

(a) To the best of my knowledge, the accompanying report on Form 10-Q for the period ended March 31, 2019, fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(b) To the best of my knowledge, the information contained in the accompanying report on Form 10-Q for the period ended March 31, 2019, fairly presents, in all material respects, the financial condition and results of operations of Spire Inc.

Date:	May 1, 2019	Signature:	/s/ Steven P. Rasche
			Steven P. Rasche
			Executive Vice President and Chief Financial Officer

EX-32.2

Exhibit 32.2

Section 1350 Certification

Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to §906 of the Sarbanes-Oxley Act of 2002, I, Steven L. Lindsey, President and Chief Executive Officer of Spire Missouri Inc., hereby certify that:

(a) To the best of my knowledge, the accompanying report on Form 10-Q for the period ended March 31, 2019, fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(b) To the best of my knowledge, the information contained in the accompanying report on Form 10-Q for the period ended March 31, 2019, fairly presents, in all material respects, the financial condition and results of operations of Spire Missouri Inc.

Date:	May 1, 2019	Signature:	/s/ Steven L. Lindsey
			Steven L. Lindsey
			Chief Executive Officer

Section 1350 Certification

Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to §906 of the Sarbanes-Oxley Act of 2002, I, Steven P. Rasche, Chief Financial Officer of Spire Missouri Inc., hereby certify that:

(a) To the best of my knowledge, the accompanying report on Form 10-Q for the period ended March 31, 2019, fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(b) To the best of my knowledge, the information contained in the accompanying report on Form 10-Q for the period ended March 31, 2019, fairly presents, in all material respects, the financial condition and results of operations of Spire Missouri Inc.

Date:	May 1, 2019	Signature:	/s/ Steven P. Rasche
			Steven P. Rasche
			Chief Financial Officer

EX-32.3

Exhibit 32.3

Section 1350 Certification

Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to §906 of the Sarbanes-Oxley Act of 2002, I, Steven L. Lindsey, Chief Executive Officer of Spire Alabama Inc., hereby certify that:

(a) To the best of my knowledge, the accompanying report on Form 10-Q for the period ended March 31, 2019, fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(b) To the best of my knowledge, the information contained in the accompanying report on Form 10-Q for the period ended March 31, 2019, fairly presents, in all material respects, the financial condition and results of operations of Spire Alabama Inc.

Date:	May 1, 2019	Signature:	/s/ Steven L. Lindsey
			Steven L. Lindsey
			Chief Executive Officer

Section 1350 Certification

Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to §906 of the Sarbanes-Oxley Act of 2002, I, Steven P. Rasche, Chief Financial Officer of Spire Alabama Inc., hereby certify that:

(a) To the best of my knowledge, the accompanying report on Form 10-Q for the period ended March 31, 2019, fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(b) To the best of my knowledge, the information contained in the accompanying report on Form 10-Q for the period ended March 31, 2019, fairly presents, in all material respects, the financial condition and results of operations of Spire Alabama Inc.

Date:	May 1, 2019	Signature:	/s/ Steven P. Rasche
			Steven P. Rasche
			Chief Financial Officer

XML

Document and Entity Information - shares	6 Months Ended
	Mar. 31, 2019	Apr. 29, 2019
Entity Information [Line Items]
Entity Registrant Name	SPIRE INC
Entity Central Index Key	0001126956
Current Fiscal Year End Date	--09-30
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Common Stock, Shares Outstanding (in shares)		50,745,880
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q2
Trading Symbol	SR
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2019
Spire Missouri Inc
Entity Information [Line Items]
Entity Registrant Name	SPIRE MISSOURI INC
Entity Central Index Key	0000057183
Current Fiscal Year End Date	--09-30
Entity Current Reporting Status	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Common Stock, Shares Outstanding (in shares)		24,577
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q2
Trading Symbol	SR
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2019
Spire Alabama Inc
Entity Information [Line Items]
Entity Registrant Name	SPIRE ALABAMA INC
Entity Central Index Key	0000003146
Current Fiscal Year End Date	--09-30
Entity Current Reporting Status	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Common Stock, Shares Outstanding (in shares)		1,972,052
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q2
Trading Symbol	SR
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2019

XML

CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019	Mar. 31, 2018
Operating Revenues:
Gas Utility	$ 776.7	$ 790.6	$ 1,350.5	$ 1,332.5
Gas Marketing and other	26.8	22.8	55.0	42.7
Total Operating Revenues	803.5	813.4	1,405.5	1,375.2
Gas Utility
Natural and propane gas	337.4	383.7	589.1	624.5
Other operation and maintenance expenses	109.5	135.3	212.0	234.3
Depreciation and amortization	44.4	41.1	88.1	81.4
Taxes, other than income taxes	57.4	58.0	96.6	94.7
Total Gas Utility Operating Expenses	548.7	618.1	985.8	1,034.9
Gas Marketing and other	45.3	45.2	105.1	86.2
Total Operating Expenses	594.0	663.3	1,090.9	1,121.1
Operating Income	209.5	150.1	314.6	254.1
Other Income (Expense), Net	6.1	(7.6)	8.9	(4.3)
Interest Charges:
Interest on long-term debt	21.5	21.0	41.9	41.7
Other interest charges	6.1	4.4	11.6	8.1
Total Interest Charges	27.6	25.4	53.5	49.8
Income Before Income Taxes	188.0	117.1	270.0	200.0
Income Tax Expense (Benefit)	33.4	18.9	48.1	(14.2)
Net Income (Loss)	$ 154.6	$ 98.2	$ 221.9	$ 214.2
Weighted Average Number of Shares Outstanding:
Basic	50.6	48.2	50.6	48.2
Diluted	50.8	48.4	50.8	48.4
Basic Earnings Per Share	$ 3.05	$ 2.03	$ 4.37	$ 4.43
Diluted Earnings Per Share	$ 3.04	$ 2.03	$ 4.36	$ 4.42
Spire Alabama
Operating Revenues:
Gas Utility	$ 180.4	$ 218.3	$ 313.9	$ 339.1
Total Operating Revenues	180.4	218.3	313.9	339.1
Gas Utility
Natural and propane gas	41.1	78.5	100.6	127.5
Other operation and maintenance expenses	33.4	35.2	67.8	68.0
Depreciation and amortization	13.7	13.1	27.3	25.9
Taxes, other than income taxes	12.6	14.4	21.5	22.6
Total Operating Expenses	100.8	141.2	217.2	244.0
Operating Income	79.6	77.1	96.7	95.1
Other Income (Expense), Net	1.5	1.6	3.3	3.0
Interest Charges:
Interest on long-term debt	4.4	3.5	8.0	6.4
Other interest charges	1.0	0.9	2.5	2.0
Total Interest Charges	5.4	4.4	10.5	8.4
Income Before Income Taxes	75.7	74.3	89.5	89.7
Income Tax Expense (Benefit)	19.0	18.7	22.5	83.7
Net Income (Loss)	$ 56.7	$ 55.6	$ 67.0	$ 6.0

XML

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019	Mar. 31, 2018
Net Income	$ 154.6	$ 98.2	$ 221.9	$ 214.2
Cash flow hedging derivative instruments:
Net hedging (loss) gain arising during the period	(7.7)	1.8	(18.1)	1.9
Reclassification adjustment for gains included in net income	(0.4)	(0.4)	(0.7)	(0.8)
Net unrealized (loss) gain on cash flow hedging derivative instruments	(8.1)	1.4	(18.8)	1.1
Net gain on defined benefit pension and other postretirement plans	0.1		0.1	0.1
Net unrealized gain (loss) on available for sale securities	0.1		0.1	(0.1)
Other Comprehensive (Loss) Income, Before Tax	(7.9)	1.4	(18.6)	1.1
Income Tax (Benefit) Expense Related to Items of Other Comprehensive (Loss) Income	(1.9)	0.3	(4.4)	0.2
Other Comprehensive (Loss) Income, Net of Tax	(6.0)	1.1	(14.2)	0.9
Comprehensive Income	148.6	99.3	207.7	215.1
Operating Revenues:
Gas Utility	776.7	790.6	1,350.5	1,332.5
Total Operating Revenues	803.5	813.4	1,405.5	1,375.2
Gas Utility
Natural and propane gas	337.4	383.7	589.1	624.5
Other operation and maintenance expenses	109.5	135.3	212.0	234.3
Depreciation and amortization	44.4	41.1	88.1	81.4
Taxes, other than income taxes	57.4	58.0	96.6	94.7
Total Operating Expenses	594.0	663.3	1,090.9	1,121.1
Operating Income	209.5	150.1	314.6	254.1
Other Income (Expense), Net	6.1	(7.6)	8.9	(4.3)
Interest Charges:
Interest on long-term debt	21.5	21.0	41.9	41.7
Other interest charges	6.1	4.4	11.6	8.1
Total Interest Charges	27.6	25.4	53.5	49.8
Income Before Income Taxes	188.0	117.1	270.0	200.0
Income Tax Expense (Benefit)	33.4	18.9	48.1	(14.2)
Net Income (Loss)	154.6	98.2	221.9	214.2
Spire Missouri
Net Income	80.0	38.4	131.2	127.8
Cash flow hedging derivative instruments:
Other Comprehensive (Loss) Income, Net of Tax		(0.1)		(0.1)
Comprehensive Income	80.0	38.3	131.2	127.7
Operating Revenues:
Gas Utility	556.6	533.2	969.8	925.5
Total Operating Revenues	556.6	533.2	969.8	925.5
Gas Utility
Natural and propane gas	313.8	311.2	537.2	517.4
Other operation and maintenance expenses	70.7	94.0	133.8	154.1
Depreciation and amortization	27.8	25.2	55.0	50.0
Taxes, other than income taxes	41.9	41.2	70.0	67.4
Total Operating Expenses	454.2	471.6	796.0	788.9
Operating Income	102.4	61.6	173.8	136.6
Other Income (Expense), Net	2.5	(9.9)	1.8	(8.9)
Interest Charges:
Interest on long-term debt	10.0	9.8	19.4	19.7
Other interest charges	3.2	2.1	5.9	3.8
Total Interest Charges	13.2	11.9	25.3	23.5
Income Before Income Taxes	91.7	39.8	150.3	104.2
Income Tax Expense (Benefit)	11.7	1.4	19.1	(23.6)
Net Income (Loss)	$ 80.0	$ 38.4	$ 131.2	$ 127.8

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CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($) $ in Millions	Mar. 31, 2019	Sep. 30, 2018	Mar. 31, 2018
ASSETS
Utility Plant	$ 5,856.8	$ 5,653.3	$ 5,403.4
Less: Accumulated depreciation and amortization	1,738.5	1,682.8	1,645.0
Net Utility Plant	4,118.3	3,970.5	3,758.4
Non-utility Property (net of accumulated depreciation and amortization of $11.9, $10.4 and $9.1 at March 31, 2019, September 30, 2018, and March 31, 2018, respectively)	329.1	174.5	116.9
Goodwill	1,171.6	1,171.6	1,171.6
Other Investments	68.4	68.7	66.4
Total Other Property and Investments	1,569.1	1,414.8	1,354.9
Current Assets:
Cash and cash equivalents	11.1	4.4	17.8
Accounts receivable:
Utility	318.6	151.9	302.4
Other	196.5	167.3	111.3
Allowance for doubtful accounts	(28.1)	(22.4)	(25.7)
Delayed customer billings	43.8	6.9	45.6
Inventories:
Natural gas	91.3	175.2	94.3
Propane gas	10.7	12.0	12.0
Materials and supplies	24.3	23.1	22.2
Natural gas receivable	0.3	1.8	3.0
Derivative instrument assets	24.5	13.3	7.3
Regulatory assets	75.3	72.8	97.7
Prepayments	21.0	31.0	18.3
Other	4.3	22.3	12.1
Total Current Assets	793.6	659.6	718.3
Deferred Charges and Other Assets:
Regulatory assets	659.9	669.8	673.6
Other	132.7	128.9	81.6
Total Deferred Charges and Other Assets	792.6	798.7	755.2
Total Assets	7,273.6	6,843.6	6,586.8
Capitalization:
Common stock (par value $1.00 per share; 70.0 million shares authorized; 50.7 million, 50.7 million and 48.4 million shares issued and outstanding at March 31, 2019, September 30, 2018, and March 31, 2018, respectively)	50.7	50.7	48.4
Paid-in capital and common stock	1,485.6	1,482.7	1,327.3
Retained earnings	877.5	715.6	773.7
Accumulated other comprehensive (loss) income	(7.8)	6.4	4.1
Total Shareholders' Equity	2,406.0	2,255.4	2,153.5
Redeemable noncontrolling interest	0.0	7.9	6.5
Long-term debt (less current portion)	2,041.9	1,900.1	2,073.9
Total Capitalization	4,447.9	4,163.4	4,233.9
Current Liabilities:
Current portion of long-term debt	215.0	175.5	105.5
Notes payable	512.0	553.6	391.7
Accounts payable	324.8	290.1	194.8
Advance customer billings	6.5	22.7	8.1
Wages and compensation accrued	32.2	39.7	30.0
Dividends payable	31.1	30.0	28.3
Customer deposits	36.7	35.5	36.1
Interest accrued	18.9	15.2	15.8
Taxes accrued	50.9	65.4	49.1
Regulatory liabilities	35.3	35.7	22.2
Other	73.3	58.3	46.4
Total Current Liabilities	1,336.7	1,321.7	928.0
Deferred Credits and Other Liabilities:
Deferred income taxes	490.2	435.8	465.6
Pension and postretirement benefit costs	178.3	180.2	233.4
Asset retirement obligations	325.5	321.1	302.8
Regulatory liabilities	431.3	354.6	353.1
Other	63.7	66.8	70.0
Total Deferred Credits and Other Liabilities	1,489.0	1,358.5	1,424.9
Commitments and Contingencies (Note 11)
Total Capitalization and Liabilities	7,273.6	6,843.6	6,586.8
Spire Missouri
ASSETS
Utility Plant	3,460.1	3,331.0	3,163.8
Less: Accumulated depreciation and amortization	736.7	705.8	687.2
Net Utility Plant	2,723.4	2,625.2	2,476.6
Goodwill	210.2	210.2	210.2
Other Investments	52.8	55.0	59.0
Total Other Property and Investments	263.0	265.2	269.2
Current Assets:
Cash and cash equivalents	6.9	2.0	10.2
Accounts receivable:
Utility	231.8	103.9	222.4
Associated companies	2.4	2.7	1.3
Other	18.5	16.6	26.0
Allowance for doubtful accounts	(21.9)	(16.0)	(20.7)
Delayed customer billings	43.8	6.9	45.6
Inventories:
Natural gas	53.1	127.9	60.0
Propane gas	10.7	12.0	12.0
Materials and supplies	14.4	13.2	13.1
Regulatory assets	30.0	30.7	51.7
Prepayments	11.1	19.1	10.7
Total Current Assets	400.8	319.0	432.3
Deferred Charges and Other Assets:
Regulatory assets	433.6	441.1	446.6
Other	53.0	50.8	9.0
Total Deferred Charges and Other Assets	486.6	491.9	455.6
Total Assets	3,873.8	3,701.3	3,633.7
Capitalization:
Paid-in capital and common stock	762.8	760.4	758.4
Retained earnings	612.8	501.1	517.3
Accumulated other comprehensive (loss) income	(1.6)	(1.6)	(1.8)
Total Shareholders' Equity	1,374.0	1,259.9	1,273.9
Long-term debt (less current portion)	924.7	824.4	874.0
Total Capitalization	2,298.7	2,084.3	2,147.9
Current Liabilities:
Current portion of long-term debt	50.0	50.0	100.0
Notes payable – associated companies	232.9	345.3	175.8
Accounts payable	72.6	81.7	69.2
Accounts payable – associated companies	8.1	5.8	3.6
Advance customer billings	0.0	9.5	0.0
Wages and compensation accrued	24.5	31.3	23.4
Dividends payable	0.0	9.0	13.5
Customer deposits	13.0	13.1	13.2
Interest accrued	8.6	7.8	8.2
Taxes accrued	27.2	32.0	25.2
Regulatory liabilities	24.2	16.7	2.7
Other	22.4	20.1	19.4
Total Current Liabilities	483.5	622.3	454.2
Deferred Credits and Other Liabilities:
Deferred income taxes	390.5	361.0	388.6
Pension and postretirement benefit costs	132.7	136.9	161.9
Asset retirement obligations	177.8	174.1	161.9
Regulatory liabilities	345.1	274.9	272.5
Other	45.5	47.8	46.7
Total Deferred Credits and Other Liabilities	1,091.6	994.7	1,031.6
Commitments and Contingencies (Note 11)
Total Capitalization and Liabilities	3,873.8	3,701.3	3,633.7
Spire Alabama
ASSETS
Utility Plant	2,032.5	1,964.3	1,885.4
Less: Accumulated depreciation and amortization	852.8	830.2	803.9
Net Utility Plant	1,179.7	1,134.1	1,081.5
Current Assets:
Cash and cash equivalents	0.1	0.0	0.0
Accounts receivable:
Utility	69.8	39.6	64.1
Associated companies	0.1	0.5	0.1
Other	8.4	8.5	6.4
Allowance for doubtful accounts	(3.8)	(3.9)	(2.7)
Inventories:
Natural gas	30.1	33.9	26.2
Materials and supplies	7.8	7.8	7.8
Regulatory assets	30.4	26.2	32.1
Prepayments	3.9	6.0	3.6
Other	0.2	2.4	2.0
Total Current Assets	147.0	121.0	139.6
Deferred Charges and Other Assets:
Regulatory assets	198.9	201.5	198.9
Deferred income taxes	79.3	101.8	100.3
Other	58.9	57.8	57.9
Total Deferred Charges and Other Assets	337.1	361.1	357.1
Total Assets	1,663.8	1,616.2	1,578.2
Capitalization:
Paid-in capital and common stock	370.9	390.9	390.9
Retained earnings	467.8	417.8	437.5
Total Shareholders' Equity	838.7	808.7	828.4
Long-term debt (less current portion)	372.1	322.6	322.5
Total Capitalization	1,210.8	1,131.3	1,150.9
Current Liabilities:
Current portion of long-term debt	40.0	0.0	0.0
Notes payable – associated companies	73.7	142.5	82.3
Accounts payable	54.6	48.4	42.9
Accounts payable – associated companies	3.1	2.1	1.5
Advance customer billings	5.3	13.1	7.9
Wages and compensation accrued	5.3	6.7	5.3
Customer deposits	20.5	18.6	19.0
Interest accrued	5.4	3.9	4.1
Taxes accrued	21.2	28.3	21.9
Regulatory liabilities	6.1	7.6	10.8
Other	4.6	3.2	2.4
Total Current Liabilities	239.8	274.4	198.1
Deferred Credits and Other Liabilities:
Pension and postretirement benefit costs	37.4	35.0	55.3
Asset retirement obligations	138.6	135.7	131.1
Regulatory liabilities	30.5	31.3	35.0
Other	6.7	8.5	7.8
Total Deferred Credits and Other Liabilities	213.2	210.5	229.2
Commitments and Contingencies (Note 11)
Total Capitalization and Liabilities	$ 1,663.8	$ 1,616.2	$ 1,578.2

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CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) (Parenthetical) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Mar. 31, 2018
ASSETS
Non-utility property, accumulated depreciation and amortization	$ 11.9		$ 10.4	$ 9.1
Capitalization:
Common stock, par value (in dollars per share)	$ 1.00		$ 1.00	$ 1.00
Common stock, authorized (in shares)	70,000,000		70,000,000	70,000,000
Common stock, issued (in shares)	50,700,000		50,700,000	48,400,000
Common stock, outstanding (in shares)	50,700,000		50,700,000	48,400,000
Spire Missouri
Capitalization:
Common stock, par value (in dollars per share)	$ 1.00		$ 1.00	$ 1.00
Common stock, authorized (in shares)	50,000,000		50,000,000	50,000,000
Common stock, issued (in shares)	24,577		24,577	24,577
Common stock, outstanding (in shares)	24,577		24,577	24,577
Spire Alabama
Capitalization:
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01	$ 0.01
Common stock, authorized (in shares)	3,000,000	3,000,000	3,000,000
Common stock, issued (in shares)	2,000,000	2,000,000	2,000,000
Common stock, outstanding (in shares)	2,000,000	2,000,000	2,000,000

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CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (UNAUDITED) - USD ($) $ in Millions	Total	Spire Missouri	Spire Alabama	Common Stock Outstanding	Common Stock Outstanding Spire Missouri	Common Stock Outstanding Spire Alabama	Paid-in Capital	Paid-in Capital Spire Missouri	Paid-in Capital Spire Alabama	Retained Earnings	Retained Earnings Spire Missouri	Retained Earnings Spire Alabama	AOCI	[1]	AOCI Spire Missouri	[1]
BALANCE at Sep. 30, 2017	$ 1,991.3	$ 1,171.0	$ 867.4	$ 48.3	$ 0.1	$ 0.0	$ 1,325.6	$ 756.1	$ 420.9	$ 614.2	$ 416.5	$ 446.5	$ 3.2		$ (1.7)
BALANCE (in shares) at Sep. 30, 2017				48,263,243	24,577	1,972,052
Stockholders' Equity Rollforward
Net income (loss)	116.0	89.4	(49.6)							116.0	89.4	(49.6)
Dividend reinvestment plan	0.3						0.3
Dividend reinvestment plan (in shares)				4,618
Stock-based compensation costs	1.9	1.1					1.9	1.1
Stock issued under stock-based compensation plans				$ 0.1			(0.1)
Stock issued under stock-based compensation plans (in shares)				105,434
Employees’ tax withholding for stock-based compensation	(2.9)			$ (0.1)			(2.8)
Employee's tax withholding for stock-based compensation (in shares)				(33,581)
Dividends declared	(27.2)	(13.5)	(7.5)							(27.2)	(13.5)	(7.5)
Other comprehensive loss, net of tax	(0.2)												(0.2)
BALANCE at Dec. 31, 2017	2,079.2	1,248.0	810.3	$ 48.3	$ 0.1		1,324.9	757.2	420.9	703.0	492.4	389.4	3.0		(1.7)
BALANCE (in shares) at Dec. 31, 2017				48,339,714	24,577	1,972,052
BALANCE at Sep. 30, 2017	1,991.3	1,171.0	867.4	$ 48.3	$ 0.1	$ 0.0	1,325.6	756.1	420.9	614.2	416.5	446.5	3.2		(1.7)
BALANCE (in shares) at Sep. 30, 2017				48,263,243	24,577	1,972,052
Stockholders' Equity Rollforward
Net income (loss)	214.2	127.8	6.0
Other comprehensive loss, net of tax	0.9	(0.1)
BALANCE at Mar. 31, 2018	2,153.5	1,273.9	828.4	$ 48.4	$ 0.1		1,327.3	758.3	390.9	773.7	517.3	437.5	4.1		(1.8)
BALANCE (in shares) at Mar. 31, 2018				48,354,779	24,577	1,972,052
BALANCE at Dec. 31, 2017	2,079.2	1,248.0	810.3	$ 48.3	$ 0.1		1,324.9	757.2	420.9	703.0	492.4	389.4	3.0		(1.7)
BALANCE (in shares) at Dec. 31, 2017				48,339,714	24,577	1,972,052
Stockholders' Equity Rollforward
Net income (loss)	98.2	38.4	55.6							98.2	38.4	55.6
Dividend reinvestment plan	0.5						0.5
Dividend reinvestment plan (in shares)				6,385
Stock-based compensation costs	1.9	1.1					1.9	1.1
Stock issued under stock-based compensation plans (in shares)				8,680
Employees’ tax withholding for stock-based compensation	0.1			$ 0.1
Dividends declared	(27.5)	(13.5)	(7.5)							(27.5)	(13.5)	(7.5)
Other comprehensive loss, net of tax	1.1	(0.1)											1.1		(0.1)
BALANCE at Mar. 31, 2018	2,153.5	1,273.9	828.4	$ 48.4	$ 0.1		1,327.3	758.3	390.9	773.7	517.3	437.5	4.1		(1.8)
BALANCE (in shares) at Mar. 31, 2018				48,354,779	24,577	1,972,052
Stockholders' Equity Rollforward
Return of capital to Spire			(30.0)						(30.0)
BALANCE at Sep. 30, 2018	2,255.4	1,259.9	808.7	$ 50.7	$ 0.1		1,482.7	760.3	390.9	715.6	501.1	417.8	6.4		(1.6)
BALANCE (in shares) at Sep. 30, 2018				50,671,903	24,577	1,972,052
Stockholders' Equity Rollforward
Net income (loss)	67.3	51.2	10.3							67.3	51.2	10.3
Dividend reinvestment plan	0.4						0.4
Dividend reinvestment plan (in shares)				5,063
Stock-based compensation costs	2.0	1.2					2.0	1.2
Stock issued under stock-based compensation plans				$ 0.1			(0.1)
Stock issued under stock-based compensation plans (in shares)				74,835
Employees’ tax withholding for stock-based compensation	(2.3)			$ (0.1)			(2.2)
Employee's tax withholding for stock-based compensation (in shares)				(27,633)
Dividends declared	(30.0)	(9.8)	(8.5)							(30.0)	(9.8)	(8.5)
Other comprehensive loss, net of tax	(8.2)												(8.2)
BALANCE at Dec. 31, 2018	2,284.6	1,302.5	810.5	$ 50.7	$ 0.1		1,482.8	761.5	390.9	752.9	542.5	419.6	(1.8)		(1.6)
BALANCE (in shares) at Dec. 31, 2018				50,724,168	24,577	1,972,052
BALANCE at Sep. 30, 2018	2,255.4	1,259.9	808.7	$ 50.7	$ 0.1		1,482.7	760.3	390.9	715.6	501.1	417.8	6.4		(1.6)
BALANCE (in shares) at Sep. 30, 2018				50,671,903	24,577	1,972,052
Stockholders' Equity Rollforward
Net income (loss)	221.9	131.2	67.0
Other comprehensive loss, net of tax	(14.2)
BALANCE at Mar. 31, 2019	2,406.0	1,374.0	838.7	$ 50.7	$ 0.1		1,485.6	762.7	370.9	877.5	612.8	467.8	(7.8)		(1.6)
BALANCE (in shares) at Mar. 31, 2019				50,742,637	24,577	1,972,052
BALANCE at Dec. 31, 2018	2,284.6	1,302.5	810.5	$ 50.7	$ 0.1		1,482.8	761.5	390.9	752.9	542.5	419.6	(1.8)		(1.6)
BALANCE (in shares) at Dec. 31, 2018				50,724,168	24,577	1,972,052
Stockholders' Equity Rollforward
Net income (loss)	154.6	80.0	56.7							154.6	80.0	56.7
Dividend reinvestment plan	0.4						0.4
Dividend reinvestment plan (in shares)				6,204
Stock-based compensation costs	2.4	1.2					2.4	1.2
Stock issued under stock-based compensation plans (in shares)				12,633
Employee's tax withholding for stock-based compensation (in shares)				(368)
Dividends declared	(30.0)	(9.7)	(8.5)							(30.0)	(9.7)	(8.5)
Other comprehensive loss, net of tax	(6.0)												(6.0)
BALANCE at Mar. 31, 2019	$ 2,406.0	$ 1,374.0	838.7	$ 50.7	$ 0.1		$ 1,485.6	$ 762.7	370.9	$ 877.5	$ 612.8	$ 467.8	$ (7.8)		$ (1.6)
BALANCE (in shares) at Mar. 31, 2019				50,742,637	24,577	1,972,052
Stockholders' Equity Rollforward
Return of capital to Spire			$ (20.0)						$ (20.0)

[1] Accumulated other comprehensive income (loss)

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CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares	3 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Dec. 31, 2017	Sep. 30, 2017
Statement Of Stockholders Equity [Abstract]
Dividends declared (in dollars per share)	$ 0.5925	$ 0.5925	$ 0.5625	$ 0.5625

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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Millions	6 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Operating Activities:
Net Income	$ 221.9	$ 214.2
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	89.1	81.9
Deferred income taxes and investment tax credits	45.5	(15.2)
Changes in assets and liabilities:
Accounts receivable	(194.3)	(122.8)
Inventories	83.9	97.3
Regulatory assets and liabilities	105.9	149.5
Accounts payable	33.6	(50.0)
Delayed/advance customer billings, net	(53.2)	(66.0)
Taxes accrued	(12.9)	(11.9)
Other assets and liabilities	(20.6)	(8.9)
Other	(1.4)	41.5
Net cash provided by operating activities	297.5	309.6
Investing Activities:
Capital expenditures	(376.8)	(215.8)
Business acquisitions	(7.9)	(17.1)
Other	(1.9)	(0.4)
Net cash used in investing activities	(386.6)	(233.3)
Financing Activities:
Issuance of long-term debt	190.0	75.0
Repayment of long-term debt	(9.1)	0.0
Repayment of short-term debt, net	(41.6)	(85.6)
Issuance of common stock	1.0	0.8
Dividends paid	(58.8)	(53.0)
Other	(2.7)	(3.1)
Net cash provided by (used in) financing activities	78.8	(65.9)
Net (Decrease) Increase in Cash, Cash Equivalents, and Restricted Cash	(10.3)	10.4
Cash, Cash Equivalents, and Restricted Cash at Beginning of Period	21.4	7.4
Cash and Cash Equivalents at End of Period	11.1	17.8
Supplemental disclosure of cash paid for:
Interest, net of amounts capitalized	(49.0)	(47.2)
Income taxes	(2.0)	(0.6)
Cash and Cash Equivalents at Beginning of Period	4.4
Cash and Cash Equivalents at End of Period	11.1	17.8
Spire Missouri
Operating Activities:
Net Income	131.2	127.8
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	55.0	50.0
Deferred income taxes and investment tax credits	19.1	(23.6)
Changes in assets and liabilities:
Accounts receivable	(123.5)	(123.2)
Inventories	74.9	76.4
Regulatory assets and liabilities	107.3	111.7
Accounts payable	11.1	(10.8)
Delayed/advance customer billings, net	(46.4)	(55.5)
Taxes accrued	(4.8)	(8.9)
Other assets and liabilities	(14.4)	(6.7)
Other	2.6	40.9
Net cash provided by operating activities	212.1	178.1
Investing Activities:
Capital expenditures	(167.1)	(129.6)
Other	0.8	(0.1)
Net cash used in investing activities	(166.3)	(129.7)
Financing Activities:
Issuance of long-term debt	100.0	0.0
(Repayments to) borrowings from Spire - net	(112.4)	(27.2)
Dividends paid	(28.5)	(13.5)
Net cash provided by (used in) financing activities	(40.9)	(40.7)
Supplemental disclosure of cash paid for:
Interest, net of amounts capitalized	(23.8)	(22.8)
Income taxes	0.0	0.0
Net Increase (Decrease) in Cash and Cash Equivalents	4.9	7.7
Cash and Cash Equivalents at Beginning of Period	2.0	2.5
Cash and Cash Equivalents at End of Period	6.9	10.2
Spire Alabama
Operating Activities:
Net Income	67.0	6.0
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	27.3	25.9
Deferred income taxes and investment tax credits	22.5	83.7
Changes in assets and liabilities:
Accounts receivable	(33.5)	(38.6)
Inventories	3.7	6.4
Regulatory assets and liabilities	0.6	34.6
Accounts payable	4.0	0.3
Delayed/advance customer billings, net	(7.8)	(10.6)
Taxes accrued	(7.1)	(1.5)
Other assets and liabilities	8.9	4.3
Other	(2.4)	(0.5)
Net cash provided by operating activities	83.2	110.0
Investing Activities:
Capital expenditures	(65.7)	(51.8)
Other	(1.1)	(0.4)
Net cash used in investing activities	(66.8)	(52.2)
Financing Activities:
Issuance of long-term debt	90.0	75.0
(Repayments to) borrowings from Spire - net	(68.8)	(87.6)
Return of capital to Spire	(20.0)	(30.0)
Dividends paid	(17.0)	(15.0)
Other	(0.5)	(0.3)
Net cash provided by (used in) financing activities	(16.3)	(57.9)
Supplemental disclosure of cash paid for:
Interest, net of amounts capitalized	(8.7)	(7.0)
Income taxes	0.0	0.0
Net Increase (Decrease) in Cash and Cash Equivalents	0.1	(0.1)
Cash and Cash Equivalents at Beginning of Period	0.0	0.1
Cash and Cash Equivalents at End of Period	$ 0.1	$ 0.0

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Summary of Significant Accounting Policies

6 Months Ended

Mar. 31, 2019

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

BASIS OF PRESENTATION – These notes are an integral part of the accompanying unaudited financial statements of Spire Inc. (“Spire” or the “Company”) presented on a consolidated basis, Spire Missouri Inc. (“Spire Missouri” or the “Missouri Utilities”) and Spire Alabama Inc. (“Spire Alabama”). Spire Missouri and Spire Alabama are wholly owned subsidiaries of Spire. Spire Missouri, Spire Alabama and the subsidiaries of Spire EnergySouth Inc. (“Spire EnergySouth”) are collectively referred to as the “Utilities.” The subsidiaries of Spire EnergySouth are Spire Gulf Inc. and Spire Mississippi Inc.

The accompanying unaudited financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information with the instructions to Form 10-Q and Rule 10-01 of Regulation S‑X. Accordingly, they do not include all the disclosures required for complete financial statements. In the opinion of management, the accompanying unaudited financial statements include all adjustments (consisting of only normal recurring adjustments) necessary for the fair presentation of the results of operations for the periods presented. This Form 10-Q should be read in conjunction with the Notes to Financial Statements contained in Spire’s, Spire Missouri’s and Spire Alabama’s combined Annual Report on Form 10-K for the fiscal year ended September 30, 2018.

The consolidated financial position, results of operations, and cash flows of Spire include the accounts of the Company and all its subsidiaries. Transactions and balances between consolidated entities have been eliminated from the consolidated financial statements of Spire. In compliance with GAAP, transactions between Spire Missouri and Spire Alabama and their affiliates, as well as intercompany balances on their balance sheets, have not been eliminated from their separate financial statements.

NATURE OF OPERATIONS – Spire has two reportable segments: Gas Utility and Gas Marketing. The Gas Utility segment consists of the regulated natural gas distribution operations of the Company and is the core business segment of Spire in terms of revenue and earnings. The Gas Utility segment is comprised of the operations of: the Missouri Utilities, serving St. Louis and eastern Missouri (“Spire Missouri East”) and Kansas City and western Missouri (“Spire Missouri West”); Spire Alabama, serving central and northern Alabama; and the subsidiaries of Spire EnergySouth, serving southern Alabama and south-central Mississippi. The Gas Marketing segment includes Spire’s primary gas-related business, Spire Marketing Inc. (“Spire Marketing”), which provides non-regulated natural gas services. The activities of other subsidiaries are reported as Other and are described in Note 10, Information by Operating Segment. Spire Missouri and Spire Alabama each have a single reportable segment.

Nearly all the Company’s earnings are derived from its Gas Utility segment. Due to the seasonal nature of the Utilities’ business and the Spire Missouri rate design, earnings are typically concentrated during the heating season of November through April each fiscal year. As a result, the interim statements of income for Spire, Spire Missouri and Spire Alabama are not necessarily indicative of annual results or representative of succeeding quarters of the fiscal year.

DERIVATIVES – In the course of their business, certain subsidiaries of Spire enter into commitments associated with the purchase or sale of natural gas. Certain of their derivative natural gas contracts are designated as normal purchases or normal sales and, as such, are excluded from the scope of Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) Topic 815, Derivatives and Hedging. Those contracts are accounted for as executory contracts and recorded on an accrual basis. Revenues and expenses from such contracts are recorded using a gross presentation. Contracts not designated as normal purchases or normal sales are recorded as derivatives with changes in fair value recognized in earnings in the periods prior to physical delivery. Certain of Spire Marketing’s wholesale purchase and sale transactions are classified as trading activities for financial reporting purposes. Under GAAP, revenues and expenses associated with trading activities are presented on a net basis in Gas Marketing operating revenues (or expenses, if negative) in the Condensed Consolidated Statements of Income. This net presentation has no effect on operating income or net income.

REGULATED OPERATIONS – The Utilities account for their regulated operations in accordance with FASB ASC Topic 980, Regulated Operations. This topic sets forth the application of GAAP for those companies whose rates are established by or are subject to approval by an independent third-party regulator. The provisions of this accounting guidance require, among other things, that financial statements of a regulated enterprise reflect the actions of regulators, where appropriate. These actions may result in the recognition of revenues and expenses in time periods that are different than non-regulated enterprises. When this occurs, costs are deferred as assets in the balance sheet (regulatory assets) and recorded as expenses when those amounts are reflected in rates. In addition, regulators can impose liabilities upon a regulated company for amounts previously collected from customers and for recovery of costs that are expected to be incurred in the future (regulatory liabilities). Management believes that the current regulatory environment supports the continued use of these regulatory accounting principles and that all regulatory assets and regulatory liabilities are recoverable or refundable through the regulatory process.

As authorized by the Missouri Public Service Commission (“MoPSC”), the Mississippi Public Service Commission (“MSPSC”) and the Alabama Public Service Commission (“APSC”), the Purchased Gas Adjustment (“PGA”) clauses and Gas Supply Adjustment (“GSA”) riders allow the Utilities to pass through to customers the cost of purchased gas supplies. Regulatory assets and liabilities related to the PGA clauses and the GSA riders are both labeled Unamortized Purchased Gas Adjustments herein. See additional information about regulatory assets and liabilities in Note 4, Regulatory Matters.

TRANSACTIONS WITH AFFILIATES – Transactions between affiliates of the Company have been eliminated from the consolidated statements of Spire. Spire Missouri and Spire Alabama borrowed funds from the Company and incurred related interest, as reflected in their separate financial statements, and they participated in normal intercompany shared services transactions. In addition, Spire Missouri’s other transactions with affiliates included:

	Three Months Ended March 31,				Six Months Ended March 31,
	2019		2018		2019		2018
Purchases of natural gas from Spire Marketing	$	29.2	$	19.3	$	69.0	$	41.6
Sales of natural gas to Spire Marketing		—		0.2		1.4		0.3
Transportation services received from Spire NGL Inc.		0.2		0.2		0.5		0.5

ACCRUED CAPITAL EXPENDITURES – Accrued capital expenditures, shown in the following table, are excluded from capital expenditures in the statements of cash flows until paid.

	March 31,		September 30,		March 31,
	2019		2018		2018
Spire	$	63.6	$	62.1	$	29.1
Spire Missouri		19.0		36.7		17.9
Spire Alabama		12.1		8.9		7.0

NEW ACCOUNTING PRONOUNCEMENTS – Spire, Spire Missouri and Spire Alabama adopted the guidance in Accounting Standards Update (“ASU”) No. 2014-09, Revenue from Contracts with Customers, and related amendments (collectively, “ASC 606”), in the first quarter of fiscal year 2019 using the modified retrospective method applied to all contracts at October 1, 2018. The core principle of ASC 606 is that revenue should be recognized to depict the transfer of control of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. Under the new standard, an entity must identify the performance obligations in a contract, determine the transaction price and allocate the price to specific performance obligations to recognize revenue when the obligation is completed. In addition, ASC 606 requires disclosure of the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers. The adoption of ASC 606 did not result in significant changes to how Spire, Spire Missouri and Spire Alabama recognize revenue, and therefore, no cumulative effect adjustment to the opening balance of retained earnings was required, and there was no significant impact to financial results after adoption. The adoption did result in changes to the disclosures about revenue, which are included in Note 2, Revenue. Some revenue arrangements, such as alternative revenue programs and certain derivative contracts, are excluded from the scope of ASC 606 and, therefore, are presented separately in disclosures.

Also effective October 1, 2018, Spire, Spire Missouri and Spire Alabama adopted ASU No. 2017-07, Compensation – Retirement Benefits: Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost, with no material impact on interim or annual financial statements. The amended guidance requires that the service cost component of net periodic pension and postretirement benefit costs be presented within the same line item in the income statement as other compensation costs (except for the amount being capitalized), while other components are to be presented outside the subtotal of operating income and are no longer eligible for capitalization (e.g., as part of utility plant). The amended guidance is applied retrospectively for income statement presentation and prospectively for capitalization. The Company, Spire Missouri and Spire Alabama elected the practical expedient permitting the use of the amounts disclosed in its pension and other postretirement benefit plan note for the prior comparative periods as the estimation basis for applying the retrospective presentation requirements. Accordingly, for the three months ended March 31, 2018, the Company, Spire Missouri and Spire Alabama reclassified net benefit (income) costs of $8.3, $9.5 and $(1.1), respectively, from “operation and maintenance” to “other income, net” or “other income (expense), net.” The corresponding amounts for the six months ended March 31, 2018 were $7.2, $9.7 and $(2.1), respectively. The corresponding annual amounts to be reclassified for the years ended September 30, 2018, 2017 and 2016 are $14.4, $19.2 and $9.6 for the Company, respectively, $17.2, $17.2 and $11.2 for Spire Missouri, respectively, and $(2.0), $2.2 and $(1.6) for Spire Alabama, respectively. For Spire Missouri, Spire Alabama, and the Company’s other rate-regulated entities, all components of net benefit cost have historically been recovered from customers as a component of utility plant and will continue to be recovered in the same manner over the depreciable lives of the related plant assets; therefore, for those entities, the components that are no longer eligible to be capitalized as a component of plant under GAAP will be reported as regulatory assets.

Effective January 1, 2019, the Company, Spire Missouri and Spire Alabama adopted ASU No. 2018-15, Intangibles – Goodwill and Other – Internal-Use Software: Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract. Previous GAAP did not specifically address the accounting for implementation costs of a hosting arrangement that is a service contract. The amendments in this update clarify that accounting and align the accounting for implementation costs for hosting arrangements, regardless of whether they convey a license to the hosted software. As a result, certain categories of implementation costs that previously would have been charged to expense as incurred are now capitalized and amortized over the term of the arrangement. The new guidance is being applied prospectively to implementation costs incurred after adoption. Related amounts capitalized were not material.

In February 2016, the FASB issued ASU No. 2016-02, Leases. The new standard requires lessees to recognize a right-of-use asset and lease liability for almost all lease contracts based on the present value of lease payments. There is an exemption for short-term leases. The ASU provides new guidelines for identifying and classifying a lease, and classification affects the pattern and income statement line item for the related expense. ASU Nos. 2018-01, 2018-10, 2018-11, 2018-20 and 2019-01 subsequently amended several aspects of the new lease guidance, including providing an additional practical expedient, an additional transition method, and clarification of the related transition and accounting for land easements. The updates (collectively, “ASC 842”), may be applied using a modified retrospective transition method for leases existing at, or entered into after, the beginning of (1) the earliest comparative period presented in the financial statements or (2) the period of adoption. ASC 842 is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. The Company, Spire Missouri and Spire Alabama are currently assessing the impacts of adopting ASC 842 in the first quarter of fiscal 2020. They expect to elect all available practical expedients and apply the second transition method.

In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments – Credit Losses: Measurement of Credit Losses on Financial Instruments, which was subsequently amended by ASU No. 2018-19 in November 2018. The standard introduces new guidance for the accounting for credit losses on instruments within its scope, including trade receivables. It is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years, and may be adopted a year earlier. The new guidance will be initially applied through a cumulative-effect adjustment to retained earnings as of the beginning of the period of adoption. The Company, Spire Missouri and Spire Alabama are currently assessing the timing and impacts of adopting this standard, which must be adopted by the first quarter of fiscal 2021.

In August 2017, the FASB issued ASU No. 2017-12, Derivatives and Hedging: Targeted Improvements to Accounting for Hedging Activities. The amendments in this ASU more closely align the results of hedge accounting with risk management activities through changes to both the designation and measurement guidance for qualifying hedging relationships and the presentation of hedge results in the financial statements. They are effective for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years, and early application is permitted. The Company, Spire Missouri and Spire Alabama are currently assessing the effects of this new guidance, as well as the timing of adoption.

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Revenue

6 Months Ended

Mar. 31, 2019

Revenue From Contract With Customer [Abstract]

Revenue

2. REVENUE

The following tables show revenue disaggregated by source and customer type.

	Three Months Ended March 31, 2019			Six Months Ended March 31, 2019
Spire
Gas Utility:
Residential	$	551.3		$	944.9
Commercial & industrial		185.9			316.2
Transportation		31.3			60.8
Off-system & other incentive		11.5			26.4
Other customer revenue		10.9			23.6
Total revenue from contracts with customers		790.9			1,371.9
Changes in accrued revenue under alternative revenue programs		(14.1	)		(19.9	)
Total Gas Utility operating revenues		776.8			1,352.0
Gas Marketing:
Revenue from contracts with retail customers		25.5			51.3
Revenue from wholesale derivative contracts		—			—
Total Gas Marketing operating revenues		25.5			51.3
Other		4.3			9.7
Total before eliminations		806.6			1,413.0
Intersegment eliminations (see Note 10, Information by Operating Segment)		(3.1	)		(7.5	)
Total Operating Revenues	$	803.5		$	1,405.5

	Three Months Ended March 31, 2019			Six Months Ended March 31, 2019
Spire Missouri
Residential	$	410.9		$	713.0
Commercial & industrial		129.2			218.3
Transportation		9.9			18.9
Off-system & other incentive		11.5			26.4
Other customer revenue		4.2			6.8
Total revenue from contracts with customers		565.7			983.4
Changes in accrued revenue under alternative revenue programs		(9.1	)		(13.6	)
Total Operating Revenues	$	556.6		$	969.8

Spire Alabama
Residential	$	116.9		$	192.3
Commercial & industrial		44.1			75.5
Transportation		18.8			37.0
Other customer revenue		5.3			14.9
Total revenue from contracts with customers		185.1			319.7
Changes in accrued revenue under alternative revenue programs		(4.7	)		(5.8	)
Total Operating Revenues	$	180.4		$	313.9

The Utilities sell natural gas to residential and other customers. The sale of natural gas is governed by the various state utility commissions, which set rates, charges, and terms and conditions of service, collectively included in a “tariff.” The performance obligation, which relates to the promise to provide natural gas, is satisfied over time as the customer simultaneously receives and consumes the natural gas, and revenue is recognized accordingly.

The Utilities’ transportation revenue relates to the promise to transport the specified quantities of natural gas at tariff rates. This performance obligation is satisfied over time as the gas is transported, and revenue is recognized as invoiced monthly.

The Utilities have alternative revenue programs (“ARPs”), which represent an agreement between the utility and its regulator, currently consisting of decoupling mechanisms (also known as weather normalization adjustments) and incentive programs (primarily Alabama’s Cost Control Measure). When the criteria to recognize additional (or reduced) revenue from ARPs have been met, the Utilities establish a regulatory asset (or liability). When amounts previously recognized for ARPs are billed, the Utilities reduce the regulatory asset (or liability) and increase (or decrease) accounts receivable. Billed amounts, which are part of the overall tariff paid by customers, are included in revenue from contracts with customers, while the change in the related regulatory asset or liability is presented as revenue from ARPs. Depending on whether the beginning accrued ARP balance was a regulatory asset or liability and depending on the size and direction of the current period accrual, the amount presented as revenue from ARPs could be negative.

The Utilities read meters and bill customers on monthly cycles. The Missouri Utilities, Spire Gulf and Spire Mississippi record their gas utility revenues from gas sales and transportation services on an accrual basis that includes estimated amounts for gas delivered but not yet billed. The accruals for unbilled revenues are reversed in the subsequent accounting period when meters are actually read and customers are billed. Spire Alabama records natural gas distribution revenues in accordance with the tariff established by the APSC. Unbilled revenue is accrued in an amount equal to the related gas cost, as profit margin is not considered earned until billed. Spire’s other subsidiaries, including Spire Marketing, record revenues when earned, as the product is delivered or as services are performed.

Gas Marketing’s contracts are derivatives. The wholesale contracts (with producers, municipalities, and utility companies) are subject to derivative accounting. The retail contracts (with large commercial and industrial customers) are designated as “normal purchase, normal sale” arrangements and are therefore accounted for as revenue from contracts with customers. The performance obligation is satisfied over time by the transfer of control of natural gas to the customer, and revenue is recognized as invoiced monthly.

Payments are generally required within 30 days of billing, and contracts generally do not have a significant financing component. Spire’s revenues are not subject to significant returns, refunds, or warranty obligations.

Spire, Spire Missouri, and Spire Alabama have elected to apply a “right to invoice” practical expedient, recognizing revenue for volumes delivered for which they have a right to invoice, as long as that amount corresponds with the value to the customer. Disclosures about remaining performance obligations are not required because either contracts have an original expected duration of one year or less, or revenue is recognized under the right to invoice practical expedient, or both.

Sales taxes imposed on applicable Spire Alabama and Spire Missouri sales are billed to customers. These amounts are not recorded in the statements of income but are recorded as tax collections payable and included in the “Other” line of the Current Liabilities section of the balance sheets.

Gross receipts taxes associated with the Company’s natural gas utility services are imposed on the Company, Spire Missouri, and Spire Alabama and billed to its customers. The revenue and expense amounts are recorded gross in the “Operating Revenues” and “Taxes, other than income taxes” lines, respectively, in the statements of income. The following table presents gross receipts taxes recorded as revenues:

	Three Months Ended March 31,				Six Months Ended March 31,
	2019		2018		2019		2018
Spire	$	43.5	$	43.6	$	69.4	$	66.7
Spire Missouri		32.1		30.6		50.6		46.8
Spire Alabama		9.6		11.6		15.9		17.2

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Earnings Per Share

6 Months Ended

Mar. 31, 2019

Earnings Per Share [Abstract]

Earnings Per Share

3. EARNINGS PER SHARE

	Three Months Ended March 31,				Six Months Ended March 31,
	2019		2018		2019		2018
Basic Earnings Per Share:
Net Income	$	154.6	$	98.2	$	221.9	$	214.2
Less: Income allocated to participating securities		0.3		0.2		0.5		0.5
Income Available to Common Shareholders	$	154.3	$	98.0	$	221.4	$	213.7
Weighted Average Shares Outstanding (in millions)		50.6		48.2		50.6		48.2
Basic Earnings Per Share	$	3.05	$	2.03	$	4.37	$	4.43
Diluted Earnings Per Share:
Net Income	$	154.6	$	98.2	$	221.9	$	214.2
Less: Income allocated to participating securities		0.3		0.2		0.5		0.5
Income Available to Common Shareholders	$	154.3	$	98.0	$	221.4	$	213.7
Weighted Average Shares Outstanding (in millions)		50.6		48.2		50.6		48.2
Dilutive Effect of Restricted Stock and Restricted Stock Units (in millions)*		0.2		0.2		0.2		0.2
Weighted Average Diluted Shares (in millions)		50.8		48.4		50.8		48.4
Diluted Earnings Per Share	$	3.04	$	2.03	$	4.36	$	4.42
* Calculation excludes certain outstanding shares (shown in millions by period    at the right) attributable to stock units subject to performance or market    conditions and restricted stock, which could have a dilutive effect in the future		0.3		0.4		0.3		0.4

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Regulatory Matters

6 Months Ended

Mar. 31, 2019

Regulated Operations [Abstract]

Regulatory Matters

4. REGULATORY MATTERS

As explained in Note 1, Summary of Significant Accounting Policies, the Utilities account for regulated operations in accordance with FASB ASC Topic 980, Regulated Operations. The following regulatory assets and regulatory liabilities were reflected in the balance sheets of the Company, Spire Missouri and Spire Alabama as of March 31, 2019, September 30, 2018, and March 31, 2018.

	March 31,		September 30,		March 31,
Spire	2019		2018		2018
Regulatory Assets:
Current:
Pension and postretirement benefit costs	$	30.2	$	30.2	$	43.0
Unamortized purchased gas adjustments		19.3		8.2		32.6
Other		25.8		34.4		22.1
Total Current Regulatory Assets		75.3		72.8		97.7
Noncurrent:
Pension and postretirement benefit costs		345.8		364.9		358.2
Cost of removal		134.6		133.4		125.0
Future income taxes due from customers		102.2		96.3		113.0
Energy efficiency		32.0		32.8		31.3
Other		45.3		42.4		46.1
Total Noncurrent Regulatory Assets		659.9		669.8		673.6
Total Regulatory Assets	$	735.2	$	742.6	$	771.3
Regulatory Liabilities:
Current:
Pension and postretirement benefit costs	$	5.8	$	2.2	$	2.2
Unamortized purchased gas adjustments		3.4		2.9		1.5
Other		26.1		30.6		18.5
Total Current Regulatory Liabilities		35.3		35.7		22.2
Noncurrent:
Deferred taxes due to customers		155.7		178.3		170.7
Pension and postretirement benefit costs		115.3		27.8		30.8
Accrued cost of removal		53.7		63.6		71.0
Unamortized purchased gas adjustments		75.7		4.7		50.3
Other		30.9		80.2		30.3
Total Noncurrent Regulatory Liabilities		431.3		354.6		353.1
Total Regulatory Liabilities	$	466.6	$	390.3	$	375.3

	March 31,		September 30,		March 31,
Spire Missouri	2019		2018		2018
Regulatory Assets:
Current:
Pension and postretirement benefit costs	$	21.9	$	21.9	$	34.9
Unamortized purchased gas adjustments		0.6		1.0		13.5
Other		7.5		7.8		3.3
Total Current Regulatory Assets		30.0		30.7		51.7
Noncurrent:
Future income taxes due from customers		99.0		94.4		111.4
Pension and postretirement benefit costs		277.9		292.5		279.0
Energy efficiency		32.0		32.8		31.3
Other		24.7		21.4		24.9
Total Noncurrent Regulatory Assets		433.6		441.1		446.6
Total Regulatory Assets	$	463.6	$	471.8	$	498.3
Regulatory Liabilities:
Current:
Pension and postretirement benefit costs	$	3.6	$	—	$	—
Unamortized purchased gas adjustments		2.7		1.9		—
Other		17.9		14.8		2.7
Total Current Regulatory Liabilities		24.2		16.7		2.7
Noncurrent:
Deferred taxes due to customers		138.3		161.1		152.6
Pension and postretirement benefit costs		79.4		—		—
Accrued cost of removal		26.8		39.8		48.7
Unamortized purchased gas adjustments		75.7		4.7		50.3
Other		24.9		69.3		20.9
Total Noncurrent Regulatory Liabilities		345.1		274.9		272.5
Total Regulatory Liabilities	$	369.3	$	291.6	$	275.2

	March 31,		September 30,		March 31,
Spire Alabama	2019		2018		2018
Regulatory Assets:
Current:
Pension and postretirement benefit costs	$	7.3	$	7.3	$	7.1
Unamortized purchased gas adjustments		18.0		6.4		19.0
Other		5.1		12.5		6.0
Total Current Regulatory Assets		30.4		26.2		32.1
Noncurrent:
Pension and postretirement benefit costs		61.1		64.8		71.2
Cost of removal		134.6		133.4		125.0
Other		3.2		3.3		2.7
Total Noncurrent Regulatory Assets		198.9		201.5		198.9
Total Regulatory Assets	$	229.3	$	227.7	$	231.0
Regulatory Liabilities:
Current:
Pension and postretirement benefit costs	$	2.2	$	2.2	$	2.2
Other		3.9		5.4		8.6
Total Current Regulatory Liabilities		6.1		7.6		10.8
Noncurrent:
Pension and postretirement benefit costs		26.5		27.8		30.8
Other		4.0		3.5		4.2
Total Noncurrent Regulatory Liabilities		30.5		31.3		35.0
Total Regulatory Liabilities	$	36.6	$	38.9	$	45.8

A portion of the Company’s and Spire Missouri’s regulatory assets are not earning a return, as shown in the table below:

	March 31,		September 30,		March 31,
	2019		2018		2018
Spire
Pension and postretirement benefit costs	$	144.7	$	148.4	$	185.8
Future income taxes due from customers		102.2		96.3		113.0
Other		14.8		15.1		11.0
Total Regulatory Assets Not Earning a Return	$	261.7	$	259.8	$	309.8
Spire Missouri
Pension and postretirement benefit costs	$	144.7	$	148.4	$	185.8
Future income taxes due from customers		99.0		94.4		111.4
Other		14.8		15.1		11.0
Total Regulatory Assets Not Earning a Return	$	258.5	$	257.9	$	308.2

Like all the Company’s regulatory assets, these regulatory assets are expected to be recovered from customers in future rates. The recovery period for the future income taxes due from customers and pension and other postretirement benefit costs could be 20 years or longer, based on current Internal Revenue Service (“IRS”) guidelines and average remaining service life of active participants, respectively. The other items not earning a return are expected to be recovered over a period not to exceed 15 years, consistent with precedent set by the MoPSC. Spire Alabama does not have any regulatory assets that are not earning a return.

On March 7, 2018, the MoPSC issued its order in two general rate cases, approving new tariffs that became effective on April 19, 2018. On April 25, 2018, Spire Missouri filed an appeal of the MoPSC’s order related to the disallowance of certain pension costs incurred prior to 1997 ($28.8), real estate sold in 2014 ($1.8), and rate case expenses ($0.9) to Missouri’s Southern District Court of Appeals. On March 15, 2019, the appeal was denied by the Southern District, and Spire Missouri has requested review by the Missouri Supreme Court.

In September 2016 and February 2017, Spire Missouri filed Infrastructure System Replacement Surcharge (“ISRS”) cases for both Spire Missouri East and Spire Missouri West (the “2016/2017 ISRS Cases”). The Missouri Office of the Public Counsel (“OPC”) appealed the MoPSC’s decisions approving these cases to Missouri’s Western District Court of Appeals, arguing that they contained ISRS-ineligible costs. In November 2017, the appellate court reversed the MoPSC’s decision in the 2016/2017 ISRS Cases and remanded the case back to the MoPSC. In June 2018, Spire Missouri filed to establish new ISRS rates in both its East and West divisions (the “2018 ISRS Cases”). In September 2018, the MoPSC issued a report and order finding that Spire Missouri’s ISRS petitions in the 2016/2017 ISRS Cases contained ISRS costs related to the replacement of plastic pipe components that should be removed from the requested revenue requirement; however, the MoPSC ordered that no adjustment to Spire Missouri’s revenues was necessary as the ISRS revenues approved in these cases had been rebased as part of its last general rate cases. Also in September 2018, the MoPSC issued a report and order in the 2018 ISRS Cases stating additional evidence was required to support all investments included in the Spire Missouri’s applications in order to support the recovery of costs related to the replacement of plastic pipe components and approved rates in the 2018 ISRS Cases providing annual revenues of $2.6 for Spire Missouri East and $5.4 for Spire Missouri West. Spire is appealing the removal of costs related to plastic in all cases in the Western District Court. On January 14, 2019, Spire Missouri refiled requests with additional information for approximately $3.2 of the ISRS revenues that were removed by the MoPSC in the 2018 ISRS Cases and filed new ISRS applications for both its East and West service territories. After updating the pro-forma months of December 2018 and January 2019, Spire Missouri is requesting approval of ISRS revenues of $7.4 for Spire Missouri East and $7.4 for Spire Missouri West related to investments made from July 1, 2018, through January 31, 2019. Evidentiary hearings were held in the 2019 cases in April 2019, and Spire Missouri expects an order from the MoPSC prior to the effective date. Per Missouri statute, new rates must become effective within 120 days of the application, or by May 14, 2019.

As part of the annual update for Rate Stabilization and Equalization (“RSE”), on November 30, 2018, Spire Alabama filed an increase for rate year 2019 of $8.7, which became effective December 1, 2018. There was no RSE reduction for the January 31, 2019 quarterly point of test. At March 31, 2019, an estimated RSE reduction for the April 30, 2019 quarterly point of test of $3.3 was recorded to bring the expected rate of return on average common equity at the end of the year to within the allowed rate of return.

On January 25, 2019, the Federal Energy Regulatory Commission (“FERC”) approved the Company’s application to combine its two adjacent natural gas storage facilities in Wyoming into one FERC certificate with a market-based tariff. On February 13, 2019, Spire Storage filed a prior notice request pursuant to the FERC’s regulations and Spire Storage’s blanket certificate authority proposing to construct and operate 10.1 miles of dual 20-inch-diameter pipeline, one new pipeline interconnection with measurement equipment, and related facilities in Uinta County, Wyoming. If authorized by the FERC, the pipeline, interconnection and measurement facilities, will allow Spire Storage to enhance the link between its two storage facilities, provide new, bi-directional access to Kern River Gas Transmission Company’s mainline and afford enhanced access with other interstate pipelines. On April 26, 2019, FERC staff filed a protest stating that Spire Storage did not provide documentation of the project’s compliance with the National Historic Preservation Act. Under the FERC’s regulations, a protested prior notice filing will be treated like a traditional application under Section 7 of the Natural Gas Act unless the protest is withdrawn within 30 days from the date upon which protests are due.

Under the terms of the January 2017 Precedent Agreement between Spire STL Pipeline and Spire Missouri, if Spire STL Pipeline files with FERC to increase its initial recourse rate at any time before the pipeline’s in-service date, and if FERC approves such request in whole or in part, then Spire Missouri’s negotiated rate will automatically increase by the same percentage increase to the initial recourse rate, up to a maximum increase of two cents per dekatherm per day.

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Financing Arrangements and Long-term Debt

6 Months Ended

Mar. 31, 2019

Debt Disclosure [Abstract]

Financing Arrangements and Long-term Debt

5. FINANCING ARRANGEMENTS AND LONG-TERM DEBT

Spire, Spire Missouri and Spire Alabama have a syndicated revolving credit facility pursuant to a loan agreement with 11 banks, expiring October 31, 2023. The loan agreement has an aggregate credit commitment of $975.0, including sublimits of $300.0 for Spire, $475.0 for Spire Missouri, and $200.0 for Spire Alabama. These sublimits may be reallocated from time to time among the three borrowers within the $975.0 aggregate commitment, with commitments fees applied for each borrower relative to its credit rating. Spire may use its line to provide for the funding needs of various subsidiaries. The agreement also contains financial covenants limiting each borrower’s consolidated total debt, including short-term debt, to no more than 70% of its total capitalization. As defined in the line of credit, on March 31, 2019, total debt was 54% of total capitalization for the consolidated Company, 47% for Spire Missouri, and 37% for Spire Alabama. There were no borrowings against this credit facility as of March 31, 2019, September 30, 2018, or March 31, 2018.

Spire has a commercial paper program (“CP Program”) pursuant to which Spire may issue short-term, unsecured commercial paper notes. Amounts available under the CP Program may be borrowed, repaid and re-borrowed from time to time, with the aggregate face or principal amount of the notes outstanding under the CP Program at any time not to exceed $975.0. The notes may have maturities of up to 365 days from date of issue.

Information about Spire’s consolidated short-term borrowings and about Spire Missouri’s and Spire Alabama’s borrowings from Spire is presented in the following table. As of March 31, 2019, $344.6 of Spire’s short-term borrowings were used to support lending to the Utilities.

	Spire Commercial Paper Borrowings	Spire Missouri Borrowings from Spire	Spire Alabama Borrowings from Spire
Six Months Ended March 31, 2019
Weighted average borrowings outstanding	$598.3	$313.5	$117.3
Weighted average interest rate	2.8%	2.8%	2.8%
Range of borrowings outstanding	$482.5 – $689.3	$205.1 – $404.9	$43.8 – $169.2
As of March 31, 2019
Borrowings outstanding	$512.0	$232.9	$73.7
Weighted average interest rate	2.8%	2.8%	2.8%
As of September 30, 2018
Borrowings outstanding	$553.6	$345.3	$142.5
Weighted average interest rate	2.4%	2.3%	2.3%
As of March 31, 2018
Borrowings outstanding	$391.7	$175.8	$82.3
Weighted average interest rate	2.2%	2.2%	2.2%

The long-term debt agreements of Spire, Spire Missouri and Spire Alabama contain customary covenants and default provisions. As of March 31, 2019, there were no events of default under these covenants.

Interest expense shown on Spire’s consolidated statements of income and Spire Missouri’s statements of comprehensive income is net of the capitalized interest amounts shown in the following table.

	Three Months Ended March 31,				Six Months Ended March 31,
	2019		2018		2019		2018
Spire	$	1.4	$	0.6	$	2.6	$	1.0
Spire Missouri		0.4		0.2		0.9		0.4

In October 2018, the Company settled a $10.0 non-interest-bearing note. In December 2018, Spire Missouri entered into a new loan agreement providing for a term loan of $100.0, which was fully funded on December 3, 2018, and which matures on December 1, 2021, subject to optional prepayment by Spire Missouri. Borrowings under the loan agreement bear interest at a rate determined by reference to the London Interbank Offered Rate (LIBOR), plus a margin based on Spire Missouri’s senior debt rating as determined by Standard & Poor’s Rating Services or Moody’s Investors Services, Inc.

On January 15, 2019, Spire Alabama entered into the Second Supplement to Master Note Purchase Agreement with certain institutional investors. Pursuant to the terms of that supplement, Spire Alabama issued and sold to those institutional investors in a private placement $90.0 of 4.64% Series 2019A Senior Notes due January 15, 2049. The notes bear interest from the date of issuance, payable semi-annually on the 15th day of July and January of each year, commencing on July 15, 2019. The notes are senior unsecured obligations of Spire Alabama, rank equal in right to payment with all its other senior unsecured indebtedness, and have make-whole and par call options. Spire Alabama used the proceeds to repay short-term debt and for general corporate purposes.

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Fair Value of Financial Instruments

6 Months Ended

Mar. 31, 2019

Fair Value Disclosures [Abstract]

Fair Value of Financial Instruments

6. FAIR VALUE OF FINANCIAL INSTRUMENTS

The carrying amounts and estimated fair values of financial instruments not measured at fair value on a recurring basis are shown in the following tables, classified according to the fair value hierarchy. There were no such instruments classified as Level 3 (significant unobservable inputs) as of March 31, 2019, September 30, 2018, or March 31, 2018.

The carrying amounts of cash and cash equivalents and short-term debt approximate fair value due to the short maturity of these instruments. The fair values of long-term debt are estimated based on market prices for similar issues. Refer to Note 7, Fair Value Measurements, for information on financial instruments measured at fair value on a recurring basis.

					Classification of Estimated Fair Value
	Carrying Amount		Fair Value		Quoted Prices in Active Markets (Level 1)		Significant Observable Inputs (Level 2)
Spire
As of March 31, 2019
Cash and cash equivalents	$	11.1	$	11.1	$	11.1	$	—
Notes payable		512.0		512.0		—		512.0
Long-term debt, including current portion		2,256.9		2,319.9		—		2,319.9
As of September 30, 2018
Cash and cash equivalents	$	4.4	$	4.4	$	4.4	$	—
Notes payable		553.6		553.6		—		553.6
Long-term debt, including current portion		2,075.6		2,074.0		—		2,074.0
As of March 31, 2018
Cash and cash equivalents	$	17.8	$	17.8	$	17.8	$	—
Notes payable		391.7		391.7		—		391.7
Long-term debt, including current portion		2,179.4		2,241.3		—		2,241.3
Spire Missouri
As of March 31, 2019
Cash and cash equivalents	$	6.9	$	6.9	$	6.9	$	—
Notes payable – associated companies		232.9		232.9		—		232.9
Long-term debt, including current portion		974.7		1,036.9		—		1,036.9
As of September 30, 2018
Cash and cash equivalents	$	2.0	$	2.0	$	2.0	$	—
Notes payable – associated companies		345.3		345.3		—		345.3
Long-term debt, including current portion		874.4		906.6		—		906.6
As of March 31, 2018
Cash and cash equivalents	$	10.2	$	10.2	$	10.2	$	—
Notes payable – associated companies		175.8		175.8		—		175.8
Long-term debt, including current portion		974.0		1,033.6		—		1,033.6
Spire Alabama
As of March 31, 2019
Cash and cash equivalents	$	0.1	$	0.1	$	0.1	$	—
Notes payable – associated companies		73.7		73.7		—		73.7
Long-term debt, including current portion		412.1		423.8		—		423.8
As of September 30, 2018
Notes payable – associated companies	$	142.5	$	142.5	$	—	$	142.5
Long-term debt		322.6		321.7		—		321.7
As of March 31, 2018
Notes payable – associated companies	$	82.3	$	82.3	$	—	$	82.3
Long-term debt		322.5		332.7		—		332.7

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Fair Value Measurements

6 Months Ended

Mar. 31, 2019

Fair Value Disclosures [Abstract]

Fair Value Measurements

7. FAIR VALUE MEASUREMENTS

The information presented below 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. The mutual funds included in Level 2 are valued based on the closing net asset value per unit.

Derivative instruments included in Level 1 are valued using quoted market prices on the New York Mercantile Exchange (“NYMEX”) or the Intercontinental Exchange (“ICE”). Derivative instruments classified in Level 2 include physical commodity 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. The Level 3 balances as of March 31, 2019, September 30, 2018, and March 31, 2018, consisted of gas commodity contracts. 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. 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)		Significant Unobservable Inputs (Level 3)		Effects of Netting and Cash Margin Receivables /Payables			Total
As of March 31, 2019
ASSETS
Gas Utility:
U.S. stock/bond mutual funds	$	19.7	$	—	$	—	$	—		$	19.7
NYMEX/ICE natural gas contracts		2.5		—		—		(2.5	)		—
Gas Marketing:
NYMEX/ICE natural gas contracts		0.2		7.1		—		(4.3	)		3.0
Natural gas commodity contracts		—		30.4		—		(3.4	)		27.0
Other:
U.S. stock/bond mutual funds		11.9		—		—		—			11.9
Total	$	34.3	$	37.5	$	—	$	(10.2	)	$	61.6
LIABILITIES
Gas Marketing:
NYMEX/ICE natural gas contracts	$	0.4	$	4.1	$	-	$	(4.5	)	$	-
Natural gas commodity contracts		—		18.9		0.2		(3.5	)		15.6
Other:
Interest rate swaps		—		15.2		—		—			15.2
Total	$	0.4	$	38.2	$	0.2	$	(8.0	)	$	30.8

	Quoted Prices in Active Markets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Effects of Netting and Cash Margin Receivables /Payables			Total
As of September 30, 2018
ASSETS
Gas Utility:
U.S. stock/bond mutual funds	$	20.3	$	—	$	—	$	—		$	20.3
NYMEX/ICE natural gas contracts		2.7		—		—		(2.7	)		—
Gas Marketing:
NYMEX/ICE natural gas contracts		0.2		4.0		—		(4.2	)		—
Natural gas commodity contracts		—		17.5		—		(1.5	)		16.0
Other:
U.S. stock/bond mutual funds		8.9		—		—		—			8.9
Interest rate swaps		—		3.0		—		—			3.0
Total	$	32.1	$	24.5	$	—	$	(8.4	)	$	48.2
LIABILITIES
Gas Utility:
NYMEX/ICE natural gas contracts	$	1.9	$	—	$	—	$	(1.9	)	$	—
Gas Marketing:
NYMEX/ICE natural gas contracts		0.9		10.5		—		(11.4	)		—
Natural gas commodity contracts		—		7.5		0.2		(1.5	)		6.2
Total	$	2.8	$	18.0	$	0.2	$	(14.8	)	$	6.2
As of March 31, 2018
ASSETS
Gas Utility:
U.S. stock/bond mutual funds	$	19.1	$	4.1	$	—	$	—		$	23.2
NYMEX/ICE natural gas contracts		0.1		—		—		(0.1	)		—
Gas Marketing:
NYMEX/ICE natural gas contracts		0.2		3.3		—		(3.5	)		—
Natural gas commodity contracts		—		7.4		0.1		(2.1	)		5.4
Other:
Interest rate swaps		—		1.0		—		—			1.0
Total	$	19.4	$	15.8	$	0.1	$	(5.7	)	$	29.6
LIABILITIES
Gas Utility:
NYMEX/ICE natural gas contracts	$	0.2	$	—	$	—	$	(0.2	)	$	—
Gas Marketing:
NYMEX/ICE natural gas contracts		0.6		9.8		—		(10.4	)		—
Natural gas commodity contracts		—		14.3		—		(2.1	)		12.2
Total	$	0.8	$	24.1	$	—	$	(12.7	)	$	12.2

Spire Missouri

	Quoted Prices in Active Markets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Effects of Netting and Cash Margin Receivables /Payables			Total
As of March 31, 2019
ASSETS
U.S. stock/bond mutual funds	$	19.7	$	—	$	—	$	—		$	19.7
NYMEX/ICE natural gas contracts		2.5		—		—		(2.5	)		—
Total	$	22.2	$	—	$	—	$	(2.5	)	$	19.7
As of September 30, 2018
ASSETS
U.S. stock/bond mutual funds	$	20.3	$	—	$	—	$	—		$	20.3
NYMEX/ICE natural gas contracts		2.7		—		—		(2.7	)		—
Total	$	23.0	$	—	$	—	$	(2.7	)	$	20.3
LIABILITIES
NYMEX/ICE natural gas contracts	$	1.9	$	—	$	—	$	(1.9	)	$	—
As of March 31, 2018
ASSETS
U.S. stock/bond mutual funds	$	19.1	$	4.1	$	—	$	—		$	23.2
NYMEX/ICE natural gas contracts		0.1		—		—		(0.1	)		—
Total	$	19.2	$	4.1	$	—	$	(0.1	)	$	23.2
LIABILITIES
NYMEX/ICE natural gas contracts	$	0.2	$	—	$	—	$	(0.2	)	$	—

Spire Alabama

Spire Alabama occasionally utilizes a gasoline derivative program to stabilize the cost of fuel used in operations. As of March 31, 2019, September 30, 2018, and March 31, 2018, Spire Alabama had no outstanding derivative contracts.

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Concentration of Credit Risk

6 Months Ended

Mar. 31, 2019

Risks And Uncertainties [Abstract]

Concentration of Credit Risk

8. CONCENTRATIONS OF CREDIT RISK

Other than in Spire Marketing, Spire has no significant concentrations of credit risk.

A significant portion of Spire Marketing’s transactions are with (or are associated with) energy producers, utility companies, and pipelines. The concentration of transactions with these counterparties has the potential to affect the Company’s overall exposure to credit risk, either positively or negatively, in that each of these three groups may be affected similarly by changes in economic, industry, or other conditions. To manage this risk, as well as credit risk from significant counterparties in these and other industries, Spire Marketing has established procedures to determine the creditworthiness of its counterparties. These procedures include obtaining credit ratings and credit reports, analyzing counterparty financial statements to assess financial condition, and considering the industry environment in which the counterparty operates. This information is monitored on an ongoing basis. In some instances, Spire Marketing may require credit assurances such as prepayments, letters of credit, or parental guarantees. In addition, Spire Marketing may enter into netting arrangements to mitigate credit risk with counterparties in the energy industry with whom it conducts both sales and purchases of natural gas. Sales are typically made on an unsecured credit basis with payment due the month following delivery. Accounts receivable amounts are closely monitored and provisions for uncollectible amounts are accrued when losses are probable. Spire Marketing records accounts receivable, accounts payable, and prepayments for physical sales and purchases of natural gas on a gross basis. The amount included in its accounts receivable attributable to energy producers and their marketing affiliates totaled $18.1 at March 31, 2019 ($7.3 reflecting netting arrangements). Spire Marketing’s accounts receivable attributable to utility companies and their marketing affiliates totaled $94.8 at March 31, 2019 ($84.0 reflecting netting arrangements).

Spire Marketing also has concentrations of credit risk with pipeline companies associated with its natural gas receivable and with certain individually significant counterparties. At March 31, 2019, the amounts included in accounts receivable from its five largest counterparties (in terms of net accounts receivable exposure) totaled $31.5 ($27.3 reflecting netting arrangements). Four of these five counterparties are investment-grade rated companies. The fifth is not rated but is a subsidiary of an investment-grade rated company.

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Pension Plans and Other Postretirement Benefits

6 Months Ended

Mar. 31, 2019

Defined Contribution Pension And Other Postretirement Plans Disclosure [Abstract]

Pension Plans and Other Postretirement Benefits

9. PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS

Pension Plans

Spire and the Utilities maintain pension plans for their employees.

The Missouri Utilities have non-contributory, defined benefit, trusteed forms of pension plans covering the majority of their employees. Plan assets consist primarily of corporate and United States (“U.S.”) government obligations and a growth segment consisting of exposure to equity markets, commodities, real estate and inflation-indexed securities, achieved through derivative instruments.

Spire Alabama has non-contributory, defined benefit, trusteed forms of pension plans covering the majority of its employees. Qualified plan assets are comprised of mutual and commingled funds consisting of U.S. equities with varying strategies, global equities, alternative investments, and fixed income investments.

The net periodic pension cost included the following components:

	Three Months Ended March 31,						Six Months Ended March 31,
	2019			2018			2019			2018
Spire
Service cost – benefits earned during the period	$	4.9		$	5.2		$	9.7		$	10.4
Interest cost on projected benefit obligation*		7.0			6.9			14.1			13.8
Expected return on plan assets*		(8.9	)		(9.5	)		(18.0	)		(19.2	)
Amortization of prior service credit*		(0.3	)		(0.2	)		(0.6	)		(0.5	)
Amortization of actuarial loss*		2.3			2.9			4.6			6.0
Loss on lump-sum settlements*		—			9.4			—			9.4
Subtotal		5.0			14.7			9.8			19.9
Regulatory adjustment		9.8			24.0			19.7			28.3
Net pension cost	$	14.8		$	38.7		$	29.5		$	48.2
Spire Missouri
Service cost – benefits earned during the period	$	3.1		$	3.2		$	6.2		$	6.5
Interest cost on projected benefit obligation*		4.9			4.9			9.9			9.8
Expected return on plan assets*		(6.3	)		(7.0	)		(12.7	)		(14.2	)
Amortization of prior service cost*		0.2			0.2			0.4			0.4
Amortization of actuarial loss*		2.2			2.5			4.3			5.1
Loss on lump-sum settlements*		—			9.4			—			9.4
Subtotal		4.1			13.2			8.1			17.0
Regulatory adjustment		7.9			21.9			15.9			24.3
Net pension cost	$	12.0		$	35.1		$	24.0		$	41.3
Spire Alabama
Service cost – benefits earned during the period	$	1.6		$	1.7		$	3.1		$	3.3
Interest cost on projected benefit obligation*		1.5			1.4			3.0			2.8
Expected return on plan assets*		(1.8	)		(1.7	)		(3.6	)		(3.4	)
Amortization of prior service credit*		(0.5	)		(0.4	)		(0.9	)		(0.9	)
Amortization of actuarial loss*		0.2			0.4			0.4			0.9
Subtotal		1.0			1.4			2.0			2.7
Regulatory adjustment		1.7			1.9			3.4			3.6
Net pension cost	$	2.7		$	3.3		$	5.4		$	6.3

* Denotes pension expense line items that are recorded below the operating income line in the income statements, in the line items “Other Income, Net” or “Other Income (Expense), Net.”

Pursuant to the provisions of the Missouri Utilities’ and Spire Alabama’s pension plans, pension obligations may be satisfied by monthly annuities, lump-sum cash payments, or special termination benefits. Lump-sum payments are recognized as settlements (which can result in gains or losses) only if the total of such payments exceeds the sum of service and interest costs in a specific year. Special termination benefits, when offered, are also recognized as settlements which can result in gains or losses. For the second quarter and first six months of fiscal 2019, no pension plans met the criteria for settlement recognition. In the quarter ended March 31, 2018, the two Spire Missouri plans met the criteria for settlement recognition, resulting in the remeasurement of the obligation of the plans using updated census data and assumptions for discount and mortality. For these plans the total lump-sum payments recognized as settlements for plan remeasurement was $39.5 and the lump-sum settlements resulted in losses of $9.4. As part of the remeasurement, the discount rate on the one Missouri plan was updated to 4.0% from 3.75%, while the other Missouri plan had its discount rate updated to 4.0% from 3.70%.

The funding policy of the Utilities is to contribute an amount not less than the minimum required by government funding standards, nor more than the maximum deductible amount for federal income tax purposes. Fiscal 2019 contributions to Spire Missouri’s pension plans through March 31, 2019 were $8.5 to the qualified trusts and none to non-qualified plans. There were no fiscal 2019 contributions to the Spire Alabama pension plans through March 31, 2019.

Contributions to the qualified trusts of the Missouri Utilities’ pension plans for the remainder of fiscal 2019 are anticipated to be $18.2. No material contributions to Spire Alabama’s pension plans are expected to be required for the remainder of fiscal 2019.

Other Postretirement Benefits

Spire and the Utilities provide certain life insurance benefits at retirement. Spire Missouri plans provide for medical insurance after early retirement until age 65. For retirements prior to January 1, 2015, the Spire Missouri West plans provided medical insurance after retirement until death. The Spire Alabama plans provide medical insurance upon retirement until death for certain retirees depending on the type of employee and the date the employee was originally hired.

Net periodic postretirement benefit costs consisted of the following components:

	Three Months Ended March 31,						Six Months Ended March 31,
	2019			2018			2019			2018
Spire
Service cost – benefits earned during the period	$	1.8		$	2.4		$	3.7		$	4.7
Interest cost on accumulated postretirement benefit obligation*		2.1			2.2			4.4			4.4
Expected return on plan assets*		(3.9	)		(3.5	)		(8.0	)		(7.0	)
Amortization of prior service credit*		(0.1	)		(0.1	)		(0.1	)		(0.1	)
Amortization of actuarial (gain) loss*		(0.2	)		0.2			(0.3	)		0.4
Subtotal		(0.3	)		1.2			(0.3	)		2.4
Regulatory adjustment		2.6			—			5.0			0.1
Net postretirement benefit cost	$	2.3		$	1.2		$	4.7		$	2.5
Spire Missouri
Service cost – benefits earned during the period	$	1.7		$	2.3		$	3.4		$	4.5
Interest cost on accumulated postretirement benefit obligation*		1.7			1.8			3.4			3.6
Expected return on plan assets*		(2.7	)		(2.5	)		(5.5	)		(4.9	)
Amortization of prior service cost*		—			—			0.1			0.1
Amortization of actuarial (gain) loss*		(0.2	)		0.2			(0.3	)		0.4
Subtotal		0.5			1.8			1.1			3.7
Regulatory adjustment		3.0			0.5			5.9			1.0
Net postretirement benefit cost	$	3.5		$	2.3		$	7.0		$	4.7
Spire Alabama
Service cost – benefits earned during the period	$	0.1		$	0.1		$	0.2		$	0.1
Interest cost on accumulated postretirement benefit obligation*		0.4			0.3			0.9			0.7
Expected return on plan assets*		(1.2	)		(1.0	)		(2.4	)		(2.0	)
Amortization of prior service credit*		(0.1	)		(0.1	)		(0.2	)		(0.2	)
Subtotal		(0.8	)		(0.7	)		(1.5	)		(1.4	)
Regulatory adjustment		(0.4	)		(0.5	)		(0.9	)		(0.9	)
Net postretirement benefit income	$	(1.2	)	$	(1.2	)	$	(2.4	)	$	(2.3	)

* Denotes other postretirement expense line items that are recorded below the operating income line in the income statements, in the line items “Other Income, Net” or “Other Income (Expense), Net.”

Missouri and Alabama state laws provide for the recovery in rates of costs accrued pursuant to GAAP provided that such costs are funded through an independent, external funding mechanism. The Utilities have established Voluntary Employees’ Beneficiary Association (“VEBA”) and Rabbi Trusts as external funding mechanisms. The assets of the VEBA and Rabbi Trusts consist primarily of money market securities and mutual funds invested in stocks and bonds.

The Utilities’ funding policy is to contribute amounts to the trusts equal to the periodic benefit cost calculated pursuant to GAAP as recovered in rates. There have been nocontributions to the postretirement plans through March 31, 2019 for the Missouri Utilities or Spire Alabama,and none are expected to be required for the remainder of the fiscal year.

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Information by Operating Segment

6 Months Ended

Mar. 31, 2019

Segment Reporting [Abstract]

INFORMATION BY OPERATING SEGMENT

10. INFORMATION BY OPERATING SEGMENT

The Company has two reportable segments: Gas Utility and Gas Marketing. The Gas Utility segment is the aggregation of the operations of the Utilities. The Gas Marketing segment includes the results of Spire Marketing, a subsidiary engaged in the non-regulated marketing of natural gas and related activities, including utilizing natural gas storage contracts for providing natural gas sales. Other components of the Company’s consolidated information include:

• unallocated corporate items, including certain debt and associated interest costs;

• Spire STL Pipeline LLC, a subsidiary of Spire constructing and planning the operation of a 65-mile FERC-regulated pipeline to deliver natural gas into eastern Missouri;

• Spire Storage, providing physical natural gas storage services; and

• Spire’s subsidiaries engaged in the operation of a propane pipeline, compression of natural gas, and risk management, among other activities.

Accounting policies are described in Note 1, Summary of Significant Accounting Policies. Intersegment transactions include sales of natural gas from Spire Marketing to Spire Missouri, sales of natural gas from Spire Missouri to Spire Marketing, propane transportation services provided by Spire NGL Inc. to Spire Missouri, and propane storage services provided by Spire Missouri to Spire NGL Inc.

Management evaluates the performance of the operating segments based on the computation of net economic earnings. Net economic earnings exclude from reported net income the after-tax impacts of fair value accounting and timing adjustments associated with energy-related transactions, the impacts of acquisition, divestiture and restructuring activities, and the largely non-cash impacts of other non-recurring or unusual items such as certain regulatory, legislative, or GAAP standard-setting actions.

	Gas Utility		Gas Marketing		Other			Eliminations			Consolidated
Three Months Ended March 31, 2019
Operating Revenues:
Revenues from external customers	$	776.7	$	25.4	$	1.4		$	—		$	803.5
Intersegment revenues		0.1		0.1		2.9			(3.1	)		—
Total Operating Revenues		776.8		25.5		4.3			(3.1	)		803.5
Operating Expenses:
Gas Utility
Natural and propane gas		366.7		—		—			(29.3	)		337.4
Operation and maintenance		112.0		—		—			(2.5	)		109.5
Depreciation and amortization		44.4		—		—			—			44.4
Taxes, other than income taxes		57.4		—		—			—			57.4
Total Gas Utility Operating Expenses		580.5		—		—			(31.8	)		548.7
Gas Marketing and Other		—		8.7		7.9			28.7			45.3
Total Operating Expenses		580.5		8.7		7.9			(3.1	)		594.0
Operating Income (Loss)	$	196.3	$	16.8	$	(3.6	)	$	—		$	209.5
Net Economic Earnings (Loss)	$	146.7	$	6.2	$	(5.0	)	$	—		$	147.9

	Gas Utility		Gas Marketing		Other			Eliminations			Consolidated
Three Months Ended March 31, 2018
Operating Revenues:
Revenues from external customers	$	790.6	$	21.3	$	1.5		$	—		$	813.4
Intersegment revenues		0.2		—		2.9			(3.1	)		—
Total Operating Revenues		790.8		21.3		4.4			(3.1	)		813.4
Operating Expenses:
Gas Utility
Natural and propane gas		403.2		—		—			(19.5	)		383.7
Operation and maintenance		137.5		—		—			(2.2	)		135.3
Depreciation and amortization		41.1		—		—			—			41.1
Taxes, other than income taxes		58.0		—		—			—			58.0
Total Gas Utility Operating Expenses		639.8		—		—			(21.7	)		618.1
Gas Marketing and Other		—		20.2		6.4			18.6			45.2
Total Operating Expenses		639.8		20.2		6.4			(3.1	)		663.3
Operating Income (Loss)	$	151.0	$	1.1	$	(2.0	)	$	—		$	150.1
Net Economic Earnings (Loss)	$	131.7	$	10.2	$	(4.7	)	$	—		$	137.2

	Gas Utility		Gas Marketing		Other			Eliminations			Consolidated
Six Months Ended March 31, 2019
Operating Revenues:
Revenues from external customers	$	1,350.5	$	51.2	$	3.8		$	—		$	1,405.5
Intersegment revenues		1.5		0.1		5.9			(7.5	)		—
Total Operating Revenues		1,352.0		51.3		9.7			(7.5	)		1,405.5
Operating Expenses:
Gas Utility
Natural and propane gas		658.5		—		—			(69.4	)		589.1
Operation and maintenance		216.9		—		—			(4.9	)		212.0
Depreciation and amortization		88.1		—		—			—			88.1
Taxes, other than income taxes		96.6		—		—			—			96.6
Total Gas Utility Operating Expenses		1,060.1		—		—			(74.3	)		985.8
Gas Marketing and Other		—		22.0		16.3			66.8			105.1
Total Operating Expenses		1,060.1		22.0		16.3			(7.5	)		1,090.9
Operating Income (Loss)	$	291.9	$	29.3	$	(6.6	)	$	—		$	314.6
Net Economic Earnings (Loss)	$	213.1	$	14.5	$	(13.8	)	$	—		$	213.8
	Gas Utility		Gas Marketing		Other			Eliminations			Consolidated
Six Months Ended March 31, 2018
Operating Revenues:
Revenues from external customers	$	1,332.5	$	40.9	$	1.8		$	—		$	1,375.2
Intersegment revenues		0.3		—		5.4			(5.7	)		—
Total Operating Revenues		1,332.8		40.9		7.2			(5.7	)		1,375.2
Operating Expenses:
Gas Utility
Natural and propane gas		666.6		—		—			(42.1	)		624.5
Operation and maintenance		238.4		—		—			(4.1	)		234.3
Depreciation and amortization		81.4		—		—			—			81.4
Taxes, other than income taxes		94.7		—		—			—			94.7
Total Gas Utility Operating Expenses		1,081.1		—		—			(46.2	)		1,034.9
Gas Marketing and Other		—		34.8		10.9			40.5			86.2
Total Operating Expenses		1,081.1		34.8		10.9			(5.7	)		1,121.1
Operating Income (Loss)	$	251.7	$	6.1	$	(3.7	)	$	—		$	254.1
Net Economic Earnings (Loss)	$	191.2	$	13.8	$	(9.9	)	$	—		$	195.1

The Company’s total assets by segment were as follows:

	March 31,			September 30,			March 31,
	2019			2018			2018
Total Assets:
Gas Utility	$	5,850.1		$	5,606.7		$	5,484.3
Gas Marketing		366.7			295.3			208.6
Other		2,396.8			2,508.0			2,211.9
Eliminations		(1,340.0	)		(1,566.4	)		(1,318.0	)
Total Assets	$	7,273.6		$	6,843.6		$	6,586.8

The following table reconciles the Company’s net economic earnings to net income.

	Three Months Ended March 31,						Six Months Ended March 31,
	2019			2018			2019			2018
Net Income	$	154.6		$	98.2		$	221.9		$	214.2
Adjustments, pre-tax:
Missouri regulatory adjustments		—			30.6			—			30.6
Unrealized (gain) loss on energy-related derivatives		(9.1	)		11.8			(11.3	)		12.6
Realized gain on economic hedges prior to the sale of the physical commodity		—			(0.2	)		—			(0.3	)
Acquisition, divestiture and restructuring activities		—			2.0			0.4			3.7
Income tax effect of adjustments		2.4			(11.1	)		2.8			(11.7	)
Effect of the Tax Cuts and Jobs Act		—			5.9			—			(54.0	)
Net Economic Earnings	$	147.9		$	137.2		$	213.8		$	195.1

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Commitments and Contingencies

6 Months Ended

Mar. 31, 2019

Commitments And Contingencies Disclosure [Abstract]

Commitments and Contingencies

11. COMMITMENTS AND CONTINGENCIES

Commitments

The Company and the Utilities have entered into contracts with various counterparties, expiring on dates through 2032, for the storage, transportation, and supply of natural gas. Minimum payments required under the contracts in place at March 31, 2019, are estimated at $1,826.5, $648.2, and $385.8 for the Company, Spire Missouri, and Spire Alabama, respectively. Additional contracts are generally entered into prior to or during the heating season of November through April. The Utilities recover their costs from customers in accordance with their PGA clauses or GSA riders.

Contingencies

The Company and the Utilities account for contingencies, including environmental liabilities, in accordance with accounting standards under the loss contingency guidance of ASC Topic 450, Contingencies, when it is probable that a liability has been incurred and the amount of the loss can be reasonably estimated.

In addition to matters noted below, the Company and the Utilities are involved in other litigation, claims, and investigations arising in the normal course of business. Management, after discussion with counsel, believes the final outcome will not have a material effect on the statements of income, balance sheets, and statements of cash flows of the Company, Spire Missouri, or Spire Alabama. However, there is uncertainty in the valuation of pending claims and prediction of litigation results.

The Company and the Utilities own and operate natural gas distribution, transmission, and storage facilities, the operations of which are subject to various environmental laws, regulations, and interpretations. While environmental issues resulting from such operations arise in the ordinary course of business, such issues have not materially affected the Company’s or Utilities’ financial position and results of operations. As environmental laws, regulations, and their interpretations change, the Company or the Utilities may incur additional environmental liabilities that may result in additional costs, which may be material.

In the natural gas industry, many gas distribution companies have incurred environmental liabilities associated with sites they or their predecessor companies formerly owned or operated where manufactured gas operations took place. The Utilities each have former manufactured gas plant (“MGP”) operations in their respective service territories. To the extent costs are incurred associated with environmental remediation activities, the Utilities would request authority from their respective regulators to defer such costs (less any amounts received from insurance proceeds or as contributions from other potentially responsible parties (“PRPs”)) and collect them through future rates.

Spire Missouri

Spire Missouri has identified three former MGP sites in the city of St. Louis, Missouri (the “City”) where costs have been incurred and claims have been asserted. Spire Missouri has enrolled two of the sites in the Missouri Department of Natural Resources (“MDNR”) Brownfields/Voluntary Cleanup Program (“BVCP”). The third site is the result of a relatively new claim assertion by the U.S. Environmental Protection Agency (“EPA”) and such claim is currently being investigated.

In conjunction with redevelopment of one of the sites, Spire Missouri and another former owner of the site entered into an agreement (the “Remediation Agreement”) with the City development agencies, the developer, and an environmental consultant that obligates one of the City agencies and the environmental consultant to remediate the site and obtain a No Further Action letter from the MDNR. The Remediation Agreement also provides for a release of Spire Missouri and the other former site owner from certain liabilities related to the past and current environmental condition of the site and requires the developer and the environmental consultant to maintain certain insurance coverage, including remediation cost containment, premises pollution liability, and professional liability. The operative provisions of the Remediation Agreement were triggered on December 20, 2010, on which date Spire Missouri and the other former site owner, as full consideration under the Remediation Agreement, paid a small percentage of the cost of remediation of the site. The amount paid by Spire Missouri did not materially impact the financial condition, results of operations, or cash flows of the Company.

Spire Missouri has not owned the second site for many years. In a letter dated June 29, 2011, the Attorney General for the State of Missouri informed Spire Missouri that the MDNR had completed an investigation of the site. The Attorney General requested that Spire Missouri participate in the follow up investigations of the site. In a letter dated January 10, 2012, Spire Missouri stated that it would participate in future environmental response activities at the site in conjunction with other PRPs that are willing to contribute to such efforts in a meaningful and equitable fashion. Accordingly, Spire Missouri entered into a cost sharing agreement for remedial investigation with other PRPs. To date, MDNR has not approved the agreement, so remedial investigation has not yet occurred.

Additionally, in correspondence dated November 30, 2016, Region 7 of the EPA has asserted that Spire Missouri is liable under Section 107(a) of the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (“CERCLA”) for alleged coal gas waste contamination at a third site in the northern portion of the City on which Spire Missouri operated a MGP. Spire Missouri has not owned or operated the site for over 70 years. Spire Missouri and the site owner have met with the EPA and reviewed its assertions. Both Spire Missouri and the site owner have notified the EPA that information and data provided by the EPA to date does not rise to the level of documenting a threat to the public health or environment. As such, Spire Missouri requested more information from the EPA, some of which would also be utilized to identify other former owners and operators of the site that could be added as PRPs. To date, Spire Missouri has not received a response from the EPA.

Spire Missouri has notified its insurers that it seeks reimbursement for costs incurred in the past and future potential liabilities associated with the MGP sites. While some of the insurers have denied coverage and reserved their rights, Spire Missouri retains the right to seek potential reimbursements from them.

On March 10, 2015, Spire Missouri received a Section 104(e) information request under CERCLA from EPA Region 7 regarding the former Thompson Chemical/Superior Solvents site in the City. In turn, Spire Missouri issued a Freedom of Information Act (“FOIA”) request to the EPA on April 3, 2015, in an effort to identify the basis of the inquiry. The FOIA response from the EPA was received on July 15, 2015 and a response was provided to the EPA on August 15, 2015. Spire Missouri has received no further inquiry from the EPA regarding this matter.

In its western service area, Spire Missouri has seven owned MGP sites enrolled in the BVCP, including Joplin MGP #1, St. Joseph MGP #1, Kansas City Coal Gas Station B, Kansas City Station A Railroad area, Kansas City Coal Gas Station A North, Kansas City Coal Gas Station A South, and Independence MGP #2. Source removal has been conducted at all of the owned sites since 2003 with the exception of Joplin. On September 15, 2016, a request was made with the MDNR for a restrictive covenant use limitation with respect to Joplin. Remediation efforts at the seven sites are at various stages of completion, ranging from groundwater monitoring and sampling following source removal activities to the aforementioned request in respect to Joplin. As part of its participation in the BVCP, Spire Missouri communicates regularly with the MDNR with respect to its remediation efforts and monitoring activities at these sites. On May 11, 2015, MDNR approved the next phase of investigation at the Kansas City Station A North and Railroad areas.

To date, costs incurred for all Missouri Utilities’ MGP sites for investigation, remediation and monitoring these sites have not been material. However, the amount of costs relative to future remedial actions at these and other sites is unknown and may be material. The actual future costs that Spire Missouri may incur could be materially higher or lower depending upon several factors, including whether remediation actions will be required, final selection and regulatory approval of any remedial actions, changing technologies and government regulations, the ultimate ability of other PRPs to pay, and any insurance recoveries.

In 2013, Spire Missouri retained an outside consultant to conduct probabilistic cost modeling of 19 former MGP sites owned or operated by Spire Missouri. The purpose of this analysis was to develop an estimated range of probabilistic future liability for each site. That analysis, completed in August 2014, provided a range of demonstrated possible future expenditures to investigate, monitor and remediate all 19 MGP sites. Spire Missouri has recorded its best estimate of the probable expenditures that relate to these matters. The amount is not material.

Spire Missouri and the Company do not expect potential liabilities that may arise from remediating these sites to have a material impact on their future financial condition or results of operations.

Spire Alabama

On December 17, 2013, an incident occurred at a Housing Authority apartment complex in Birmingham, Alabama that resulted in one fatality, personal injuries and property damage. Spire Alabama cooperated with the National Transportation Safety Board (“NTSB”) which investigated the incident. The NTSB report of findings was issued on March 30, 2016 and no safety recommendations, fines, or penalties were contained therein. Spire Alabama has been named as a defendant in several lawsuits arising from the incident, some of which remain pending. Spire Alabama does not expect potential liabilities that may arise from these lawsuits to have a material impact on its future financial condition or results of operations.

Spire Alabama is in the chain of title of nine former MGP sites, four of which it still owns, and five former manufactured gas distribution sites, one of which it still owns. Spire Alabama does not foresee a probable or reasonably estimable loss associated with these sites. Spire Alabama and the Company do not expect potential liabilities that may arise from remediating these sites to have a material impact on their future financial condition or results of operations.

In 2012, Spire Alabama responded to an EPA Request for Information Pursuant to Section 104 of CERCLA relating to the 35th Avenue Superfund Site located in North Birmingham, Jefferson County, Alabama. Spire Alabama was identified as a PRP under CERCLA for the cleanup of the site or costs the EPA incurs in cleaning up the site. At this point, Spire Alabama has not been provided information that would allow it to determine the extent, if any, of its potential liability with respect to the 35th Avenue Superfund Site and vigorously denies its inclusion as a PRP.

Spire

In addition to those discussed above for Spire Missouri and Spire Alabama, Spire is aware of the following contingent matters.

Since April 2012, a total of 14 lawsuits encompassing more than 1,600 plaintiffs have been filed against Spire Gulf in Mobile County Circuit Court alleging that in the first half of 2008, Spire Gulf spilled tert-butyl mercaptan, an odorant added to natural gas for safety reasons, in Eight Mile, Alabama. All of the lawsuits have been substantially settled, with the exception of 13 individuals who rejected their settlement offers and whose claims remain pending. Those remaining claims allege nuisance, fraud and negligence causes of actions and seek unspecified compensatory and punitive damages. A claim has been made against the insurance carriers requesting reimbursement for costs accrued in respect to this spill, and a related receivable has been recorded. The Company does not expect potential liabilities that may arise from these lawsuits to have a material impact on its future financial condition or results of operations.

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Income Taxes

6 Months Ended

Mar. 31, 2019

Income Tax Disclosure [Abstract]

Income Taxes

12. INCOME TAXES

The Tax Cuts and Jobs Act (“TCJA”) was signed into law on December 22, 2017, with an effective date of January 1, 2018, for substantially all of the provisions. The specific provisions related to regulated public utilities in the TCJA generally allow for the continued deductibility of interest expense, the elimination of full expensing for tax purposes of certain property acquired after September 27, 2017, and the continuation of certain rate normalization requirements for accelerated depreciation benefits. The Department of the Treasury (“Treasury”) has issued proposed regulations associated with the deductibility of interest expense, but further clarification of certain provisions is expected. Treasury has also issued proposed regulations on bonus depreciation which allow full expensing for certain property acquired in tax years beginning prior to January 1, 2018.

As indicated in Note 1, Summary of Significant Accounting Policies, the Company’s regulated operations accounting for income taxes is impacted by ASC 980, Regulated Operations. Reductions in deferred income tax balances due to the reduction in the corporate income tax rate will result in amounts previously collected from utility customers for these deferred taxes to be refundable to such customers, generally through reductions in future rates. The TCJA includes provisions that stipulate how these excess deferred taxes are to be passed back to customers for certain accelerated tax depreciation benefits. In the third quarter of fiscal 2018, the MoPSC Amended Report and Order took effect and the estimated excess accumulated deferred income tax began to be returned to customers in rates. The amount being returned is estimated with a tracker established to defer the difference from the estimated amounts to the actual amounts once the actual amounts have been calculated. During the three and six months ended March 31, 2019, Spire Missouri returned excess accumulated deferred taxes of $2.1 and $4.2, respectively. The treatment for accumulated deferred income tax balances for Spire Alabama, Spire Gulf and Spire Mississippi is yet to be determined by state regulators.

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Summary of Significant Accounting Policies (Policies)

6 Months Ended

Mar. 31, 2019

Accounting Policies [Abstract]

Basis of Presentation

BASIS OF PRESENTATION – These notes are an integral part of the accompanying unaudited financial statements of Spire Inc. (“Spire” or the “Company”) presented on a consolidated basis, Spire Missouri Inc. (“Spire Missouri” or the “Missouri Utilities”) and Spire Alabama Inc. (“Spire Alabama”). Spire Missouri and Spire Alabama are wholly owned subsidiaries of Spire. Spire Missouri, Spire Alabama and the subsidiaries of Spire EnergySouth Inc. (“Spire EnergySouth”) are collectively referred to as the “Utilities.” The subsidiaries of Spire EnergySouth are Spire Gulf Inc. and Spire Mississippi Inc.

The accompanying unaudited financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information with the instructions to Form 10-Q and Rule 10-01 of Regulation S‑X. Accordingly, they do not include all the disclosures required for complete financial statements. In the opinion of management, the accompanying unaudited financial statements include all adjustments (consisting of only normal recurring adjustments) necessary for the fair presentation of the results of operations for the periods presented. This Form 10-Q should be read in conjunction with the Notes to Financial Statements contained in Spire’s, Spire Missouri’s and Spire Alabama’s combined Annual Report on Form 10-K for the fiscal year ended September 30, 2018.

The consolidated financial position, results of operations, and cash flows of Spire include the accounts of the Company and all its subsidiaries. Transactions and balances between consolidated entities have been eliminated from the consolidated financial statements of Spire. In compliance with GAAP, transactions between Spire Missouri and Spire Alabama and their affiliates, as well as intercompany balances on their balance sheets, have not been eliminated from their separate financial statements.

Derivatives

DERIVATIVES – In the course of their business, certain subsidiaries of Spire enter into commitments associated with the purchase or sale of natural gas. Certain of their derivative natural gas contracts are designated as normal purchases or normal sales and, as such, are excluded from the scope of Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) Topic 815, Derivatives and Hedging. Those contracts are accounted for as executory contracts and recorded on an accrual basis. Revenues and expenses from such contracts are recorded using a gross presentation. Contracts not designated as normal purchases or normal sales are recorded as derivatives with changes in fair value recognized in earnings in the periods prior to physical delivery. Certain of Spire Marketing’s wholesale purchase and sale transactions are classified as trading activities for financial reporting purposes. Under GAAP, revenues and expenses associated with trading activities are presented on a net basis in Gas Marketing operating revenues (or expenses, if negative) in the Condensed Consolidated Statements of Income. This net presentation has no effect on operating income or net income.

Regulated Operations

REGULATED OPERATIONS – The Utilities account for their regulated operations in accordance with FASB ASC Topic 980, Regulated Operations. This topic sets forth the application of GAAP for those companies whose rates are established by or are subject to approval by an independent third-party regulator. The provisions of this accounting guidance require, among other things, that financial statements of a regulated enterprise reflect the actions of regulators, where appropriate. These actions may result in the recognition of revenues and expenses in time periods that are different than non-regulated enterprises. When this occurs, costs are deferred as assets in the balance sheet (regulatory assets) and recorded as expenses when those amounts are reflected in rates. In addition, regulators can impose liabilities upon a regulated company for amounts previously collected from customers and for recovery of costs that are expected to be incurred in the future (regulatory liabilities). Management believes that the current regulatory environment supports the continued use of these regulatory accounting principles and that all regulatory assets and regulatory liabilities are recoverable or refundable through the regulatory process.

As authorized by the Missouri Public Service Commission (“MoPSC”), the Mississippi Public Service Commission (“MSPSC”) and the Alabama Public Service Commission (“APSC”), the Purchased Gas Adjustment (“PGA”) clauses and Gas Supply Adjustment (“GSA”) riders allow the Utilities to pass through to customers the cost of purchased gas supplies. Regulatory assets and liabilities related to the PGA clauses and the GSA riders are both labeled Unamortized Purchased Gas Adjustments herein. See additional information about regulatory assets and liabilities in Note 4, Regulatory Matters.

Transactions with Affiliates

TRANSACTIONS WITH AFFILIATES – Transactions between affiliates of the Company have been eliminated from the consolidated statements of Spire. Spire Missouri and Spire Alabama borrowed funds from the Company and incurred related interest, as reflected in their separate financial statements, and they participated in normal intercompany shared services transactions

Accrued Capital Expenditures

Accrued capital expenditures, shown in the following table, are excluded from capital expenditures in the statements of cash flows until paid.

New Accounting Pronouncements

NEW ACCOUNTING PRONOUNCEMENTS – Spire, Spire Missouri and Spire Alabama adopted the guidance in Accounting Standards Update (“ASU”) No. 2014-09, Revenue from Contracts with Customers, and related amendments (collectively, “ASC 606”), in the first quarter of fiscal year 2019 using the modified retrospective method applied to all contracts at October 1, 2018. The core principle of ASC 606 is that revenue should be recognized to depict the transfer of control of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. Under the new standard, an entity must identify the performance obligations in a contract, determine the transaction price and allocate the price to specific performance obligations to recognize revenue when the obligation is completed. In addition, ASC 606 requires disclosure of the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers. The adoption of ASC 606 did not result in significant changes to how Spire, Spire Missouri and Spire Alabama recognize revenue, and therefore, no cumulative effect adjustment to the opening balance of retained earnings was required, and there was no significant impact to financial results after adoption. The adoption did result in changes to the disclosures about revenue, which are included in Note 2, Revenue. Some revenue arrangements, such as alternative revenue programs and certain derivative contracts, are excluded from the scope of ASC 606 and, therefore, are presented separately in disclosures.

Also effective October 1, 2018, Spire, Spire Missouri and Spire Alabama adopted ASU No. 2017-07, Compensation – Retirement Benefits: Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost, with no material impact on interim or annual financial statements. The amended guidance requires that the service cost component of net periodic pension and postretirement benefit costs be presented within the same line item in the income statement as other compensation costs (except for the amount being capitalized), while other components are to be presented outside the subtotal of operating income and are no longer eligible for capitalization (e.g., as part of utility plant). The amended guidance is applied retrospectively for income statement presentation and prospectively for capitalization. The Company, Spire Missouri and Spire Alabama elected the practical expedient permitting the use of the amounts disclosed in its pension and other postretirement benefit plan note for the prior comparative periods as the estimation basis for applying the retrospective presentation requirements. Accordingly, for the three months ended March 31, 2018, the Company, Spire Missouri and Spire Alabama reclassified net benefit (income) costs of $8.3, $9.5 and $(1.1), respectively, from “operation and maintenance” to “other income, net” or “other income (expense), net.” The corresponding amounts for the six months ended March 31, 2018 were $7.2, $9.7 and $(2.1), respectively. The corresponding annual amounts to be reclassified for the years ended September 30, 2018, 2017 and 2016 are $14.4, $19.2 and $9.6 for the Company, respectively, $17.2, $17.2 and $11.2 for Spire Missouri, respectively, and $(2.0), $2.2 and $(1.6) for Spire Alabama, respectively. For Spire Missouri, Spire Alabama, and the Company’s other rate-regulated entities, all components of net benefit cost have historically been recovered from customers as a component of utility plant and will continue to be recovered in the same manner over the depreciable lives of the related plant assets; therefore, for those entities, the components that are no longer eligible to be capitalized as a component of plant under GAAP will be reported as regulatory assets.

Effective January 1, 2019, the Company, Spire Missouri and Spire Alabama adopted ASU No. 2018-15, Intangibles – Goodwill and Other – Internal-Use Software: Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract. Previous GAAP did not specifically address the accounting for implementation costs of a hosting arrangement that is a service contract. The amendments in this update clarify that accounting and align the accounting for implementation costs for hosting arrangements, regardless of whether they convey a license to the hosted software. As a result, certain categories of implementation costs that previously would have been charged to expense as incurred are now capitalized and amortized over the term of the arrangement. The new guidance is being applied prospectively to implementation costs incurred after adoption. Related amounts capitalized were not material.

In February 2016, the FASB issued ASU No. 2016-02, Leases. The new standard requires lessees to recognize a right-of-use asset and lease liability for almost all lease contracts based on the present value of lease payments. There is an exemption for short-term leases. The ASU provides new guidelines for identifying and classifying a lease, and classification affects the pattern and income statement line item for the related expense. ASU Nos. 2018-01, 2018-10, 2018-11, 2018-20 and 2019-01 subsequently amended several aspects of the new lease guidance, including providing an additional practical expedient, an additional transition method, and clarification of the related transition and accounting for land easements. The updates (collectively, “ASC 842”), may be applied using a modified retrospective transition method for leases existing at, or entered into after, the beginning of (1) the earliest comparative period presented in the financial statements or (2) the period of adoption. ASC 842 is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. The Company, Spire Missouri and Spire Alabama are currently assessing the impacts of adopting ASC 842 in the first quarter of fiscal 2020. They expect to elect all available practical expedients and apply the second transition method.

In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments – Credit Losses: Measurement of Credit Losses on Financial Instruments, which was subsequently amended by ASU No. 2018-19 in November 2018. The standard introduces new guidance for the accounting for credit losses on instruments within its scope, including trade receivables. It is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years, and may be adopted a year earlier. The new guidance will be initially applied through a cumulative-effect adjustment to retained earnings as of the beginning of the period of adoption. The Company, Spire Missouri and Spire Alabama are currently assessing the timing and impacts of adopting this standard, which must be adopted by the first quarter of fiscal 2021.

In August 2017, the FASB issued ASU No. 2017-12, Derivatives and Hedging: Targeted Improvements to Accounting for Hedging Activities. The amendments in this ASU more closely align the results of hedge accounting with risk management activities through changes to both the designation and measurement guidance for qualifying hedging relationships and the presentation of hedge results in the financial statements. They are effective for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years, and early application is permitted. The Company, Spire Missouri and Spire Alabama are currently assessing the effects of this new guidance, as well as the timing of adoption.

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Summary of Significant Accounting Policies (Tables)

6 Months Ended

Mar. 31, 2019

Accounting Policies [Abstract]

Schedule of Inter-Company Transactions

In addition, Spire Missouri’s other transactions with affiliates included

	Three Months Ended March 31,				Six Months Ended March 31,
	2019		2018		2019		2018
Purchases of natural gas from Spire Marketing	$	29.2	$	19.3	$	69.0	$	41.6
Sales of natural gas to Spire Marketing		—		0.2		1.4		0.3
Transportation services received from Spire NGL Inc.		0.2		0.2		0.5		0.5

Schedule of capital expenditures excluded from statement of cash flow

Accrued capital expenditures, shown in the following table, are excluded from capital expenditures in the statements of cash flows until paid.

	March 31,		September 30,		March 31,
	2019		2018		2018
Spire	$	63.6	$	62.1	$	29.1
Spire Missouri		19.0		36.7		17.9
Spire Alabama		12.1		8.9		7.0

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Revenue (Tables)

6 Months Ended

Mar. 31, 2019

Revenue From Contract With Customer [Abstract]

Schedule of Revenue Disaggregated by Source and Customer Type

The following tables show revenue disaggregated by source and customer type.

	Three Months Ended March 31, 2019			Six Months Ended March 31, 2019
Spire
Gas Utility:
Residential	$	551.3		$	944.9
Commercial & industrial		185.9			316.2
Transportation		31.3			60.8
Off-system & other incentive		11.5			26.4
Other customer revenue		10.9			23.6
Total revenue from contracts with customers		790.9			1,371.9
Changes in accrued revenue under alternative revenue programs		(14.1	)		(19.9	)
Total Gas Utility operating revenues		776.8			1,352.0
Gas Marketing:
Revenue from contracts with retail customers		25.5			51.3
Revenue from wholesale derivative contracts		—			—
Total Gas Marketing operating revenues		25.5			51.3
Other		4.3			9.7
Total before eliminations		806.6			1,413.0
Intersegment eliminations (see Note 10, Information by Operating Segment)		(3.1	)		(7.5	)
Total Operating Revenues	$	803.5		$	1,405.5

	Three Months Ended March 31, 2019			Six Months Ended March 31, 2019
Spire Missouri
Residential	$	410.9		$	713.0
Commercial & industrial		129.2			218.3
Transportation		9.9			18.9
Off-system & other incentive		11.5			26.4
Other customer revenue		4.2			6.8
Total revenue from contracts with customers		565.7			983.4
Changes in accrued revenue under alternative revenue programs		(9.1	)		(13.6	)
Total Operating Revenues	$	556.6		$	969.8

Spire Alabama
Residential	$	116.9		$	192.3
Commercial & industrial		44.1			75.5
Transportation		18.8			37.0
Other customer revenue		5.3			14.9
Total revenue from contracts with customers		185.1			319.7
Changes in accrued revenue under alternative revenue programs		(4.7	)		(5.8	)
Total Operating Revenues	$	180.4		$	313.9

Schedule of Gross Receipts Taxes

The following table presents gross receipts taxes recorded as revenues:

	Three Months Ended March 31,				Six Months Ended March 31,
	2019		2018		2019		2018
Spire	$	43.5	$	43.6	$	69.4	$	66.7
Spire Missouri		32.1		30.6		50.6		46.8
Spire Alabama		9.6		11.6		15.9		17.2

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Earnings Per Share (Tables)

6 Months Ended

Mar. 31, 2019

Earnings Per Share [Abstract]

Schedule of Basic and Diluted Earnings Per Share

	Three Months Ended March 31,				Six Months Ended March 31,
	2019		2018		2019		2018
Basic Earnings Per Share:
Net Income	$	154.6	$	98.2	$	221.9	$	214.2
Less: Income allocated to participating securities		0.3		0.2		0.5		0.5
Income Available to Common Shareholders	$	154.3	$	98.0	$	221.4	$	213.7
Weighted Average Shares Outstanding (in millions)		50.6		48.2		50.6		48.2
Basic Earnings Per Share	$	3.05	$	2.03	$	4.37	$	4.43
Diluted Earnings Per Share:
Net Income	$	154.6	$	98.2	$	221.9	$	214.2
Less: Income allocated to participating securities		0.3		0.2		0.5		0.5
Income Available to Common Shareholders	$	154.3	$	98.0	$	221.4	$	213.7
Weighted Average Shares Outstanding (in millions)		50.6		48.2		50.6		48.2
Dilutive Effect of Restricted Stock and Restricted Stock Units (in millions)*		0.2		0.2		0.2		0.2
Weighted Average Diluted Shares (in millions)		50.8		48.4		50.8		48.4
Diluted Earnings Per Share	$	3.04	$	2.03	$	4.36	$	4.42
* Calculation excludes certain outstanding shares (shown in millions by period    at the right) attributable to stock units subject to performance or market    conditions and restricted stock, which could have a dilutive effect in the future		0.3		0.4		0.3		0.4

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Regulatory Matters (Tables)

6 Months Ended

Mar. 31, 2019

Regulated Operations [Abstract]

Schedule of Regulatory Assets and Liabilities

The following regulatory assets and regulatory liabilities were reflected in the balance sheets of the Company, Spire Missouri and Spire Alabama as of March 31, 2019, September 30, 2018, and March 31, 2018.

	March 31,		September 30,		March 31,
Spire	2019		2018		2018
Regulatory Assets:
Current:
Pension and postretirement benefit costs	$	30.2	$	30.2	$	43.0
Unamortized purchased gas adjustments		19.3		8.2		32.6
Other		25.8		34.4		22.1
Total Current Regulatory Assets		75.3		72.8		97.7
Noncurrent:
Pension and postretirement benefit costs		345.8		364.9		358.2
Cost of removal		134.6		133.4		125.0
Future income taxes due from customers		102.2		96.3		113.0
Energy efficiency		32.0		32.8		31.3
Other		45.3		42.4		46.1
Total Noncurrent Regulatory Assets		659.9		669.8		673.6
Total Regulatory Assets	$	735.2	$	742.6	$	771.3
Regulatory Liabilities:
Current:
Pension and postretirement benefit costs	$	5.8	$	2.2	$	2.2
Unamortized purchased gas adjustments		3.4		2.9		1.5
Other		26.1		30.6		18.5
Total Current Regulatory Liabilities		35.3		35.7		22.2
Noncurrent:
Deferred taxes due to customers		155.7		178.3		170.7
Pension and postretirement benefit costs		115.3		27.8		30.8
Accrued cost of removal		53.7		63.6		71.0
Unamortized purchased gas adjustments		75.7		4.7		50.3
Other		30.9		80.2		30.3
Total Noncurrent Regulatory Liabilities		431.3		354.6		353.1
Total Regulatory Liabilities	$	466.6	$	390.3	$	375.3

	March 31,		September 30,		March 31,
Spire Missouri	2019		2018		2018
Regulatory Assets:
Current:
Pension and postretirement benefit costs	$	21.9	$	21.9	$	34.9
Unamortized purchased gas adjustments		0.6		1.0		13.5
Other		7.5		7.8		3.3
Total Current Regulatory Assets		30.0		30.7		51.7
Noncurrent:
Future income taxes due from customers		99.0		94.4		111.4
Pension and postretirement benefit costs		277.9		292.5		279.0
Energy efficiency		32.0		32.8		31.3
Other		24.7		21.4		24.9
Total Noncurrent Regulatory Assets		433.6		441.1		446.6
Total Regulatory Assets	$	463.6	$	471.8	$	498.3
Regulatory Liabilities:
Current:
Pension and postretirement benefit costs	$	3.6	$	—	$	—
Unamortized purchased gas adjustments		2.7		1.9		—
Other		17.9		14.8		2.7
Total Current Regulatory Liabilities		24.2		16.7		2.7
Noncurrent:
Deferred taxes due to customers		138.3		161.1		152.6
Pension and postretirement benefit costs		79.4		—		—
Accrued cost of removal		26.8		39.8		48.7
Unamortized purchased gas adjustments		75.7		4.7		50.3
Other		24.9		69.3		20.9
Total Noncurrent Regulatory Liabilities		345.1		274.9		272.5
Total Regulatory Liabilities	$	369.3	$	291.6	$	275.2

	March 31,		September 30,		March 31,
Spire Alabama	2019		2018		2018
Regulatory Assets:
Current:
Pension and postretirement benefit costs	$	7.3	$	7.3	$	7.1
Unamortized purchased gas adjustments		18.0		6.4		19.0
Other		5.1		12.5		6.0
Total Current Regulatory Assets		30.4		26.2		32.1
Noncurrent:
Pension and postretirement benefit costs		61.1		64.8		71.2
Cost of removal		134.6		133.4		125.0
Other		3.2		3.3		2.7
Total Noncurrent Regulatory Assets		198.9		201.5		198.9
Total Regulatory Assets	$	229.3	$	227.7	$	231.0
Regulatory Liabilities:
Current:
Pension and postretirement benefit costs	$	2.2	$	2.2	$	2.2
Other		3.9		5.4		8.6
Total Current Regulatory Liabilities		6.1		7.6		10.8
Noncurrent:
Pension and postretirement benefit costs		26.5		27.8		30.8
Other		4.0		3.5		4.2
Total Noncurrent Regulatory Liabilities		30.5		31.3		35.0
Total Regulatory Liabilities	$	36.6	$	38.9	$	45.8

Schedule of Regulatory Assets Not Earning a Return

A portion of the Company’s and Spire Missouri’s regulatory assets are not earning a return, as shown in the table below:

	March 31,		September 30,		March 31,
	2019		2018		2018
Spire
Pension and postretirement benefit costs	$	144.7	$	148.4	$	185.8
Future income taxes due from customers		102.2		96.3		113.0
Other		14.8		15.1		11.0
Total Regulatory Assets Not Earning a Return	$	261.7	$	259.8	$	309.8
Spire Missouri
Pension and postretirement benefit costs	$	144.7	$	148.4	$	185.8
Future income taxes due from customers		99.0		94.4		111.4
Other		14.8		15.1		11.0
Total Regulatory Assets Not Earning a Return	$	258.5	$	257.9	$	308.2

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Financing Arrangements and Long-term Debt (Tables)

6 Months Ended

Mar. 31, 2019

Debt Disclosure [Abstract]

Schedule of Spire Missouri and Alabama Short-term Borrowings

Information about Spire’s consolidated short-term borrowings and about Spire Missouri’s and Spire Alabama’s borrowings from Spire is presented in the following table. As of March 31, 2019, $344.6 of Spire’s short-term borrowings were used to support lending to the Utilities.

	Spire Commercial Paper Borrowings	Spire Missouri Borrowings from Spire	Spire Alabama Borrowings from Spire
Six Months Ended March 31, 2019
Weighted average borrowings outstanding	$598.3	$313.5	$117.3
Weighted average interest rate	2.8%	2.8%	2.8%
Range of borrowings outstanding	$482.5 – $689.3	$205.1 – $404.9	$43.8 – $169.2
As of March 31, 2019
Borrowings outstanding	$512.0	$232.9	$73.7
Weighted average interest rate	2.8%	2.8%	2.8%
As of September 30, 2018
Borrowings outstanding	$553.6	$345.3	$142.5
Weighted average interest rate	2.4%	2.3%	2.3%
As of March 31, 2018
Borrowings outstanding	$391.7	$175.8	$82.3
Weighted average interest rate	2.2%	2.2%	2.2%

Summary Capitalized Interest

Interest expense shown on Spire’s consolidated statements of income and Spire Missouri’s statements of comprehensive income is net of the capitalized interest amounts shown in the following table.

	Three Months Ended March 31,				Six Months Ended March 31,
	2019		2018		2019		2018
Spire	$	1.4	$	0.6	$	2.6	$	1.0
Spire Missouri		0.4		0.2		0.9		0.4

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Fair Value of Financial Instruments (Tables)

6 Months Ended

Mar. 31, 2019

Fair Value Disclosures [Abstract]

Summary of Financial Instruments Measured at Fair Value on Recurring Basis

					Classification of Estimated Fair Value
	Carrying Amount		Fair Value		Quoted Prices in Active Markets (Level 1)		Significant Observable Inputs (Level 2)
Spire
As of March 31, 2019
Cash and cash equivalents	$	11.1	$	11.1	$	11.1	$	—
Notes payable		512.0		512.0		—		512.0
Long-term debt, including current portion		2,256.9		2,319.9		—		2,319.9
As of September 30, 2018
Cash and cash equivalents	$	4.4	$	4.4	$	4.4	$	—
Notes payable		553.6		553.6		—		553.6
Long-term debt, including current portion		2,075.6		2,074.0		—		2,074.0
As of March 31, 2018
Cash and cash equivalents	$	17.8	$	17.8	$	17.8	$	—
Notes payable		391.7		391.7		—		391.7
Long-term debt, including current portion		2,179.4		2,241.3		—		2,241.3
Spire Missouri
As of March 31, 2019
Cash and cash equivalents	$	6.9	$	6.9	$	6.9	$	—
Notes payable – associated companies		232.9		232.9		—		232.9
Long-term debt, including current portion		974.7		1,036.9		—		1,036.9
As of September 30, 2018
Cash and cash equivalents	$	2.0	$	2.0	$	2.0	$	—
Notes payable – associated companies		345.3		345.3		—		345.3
Long-term debt, including current portion		874.4		906.6		—		906.6
As of March 31, 2018
Cash and cash equivalents	$	10.2	$	10.2	$	10.2	$	—
Notes payable – associated companies		175.8		175.8		—		175.8
Long-term debt, including current portion		974.0		1,033.6		—		1,033.6
Spire Alabama
As of March 31, 2019
Cash and cash equivalents	$	0.1	$	0.1	$	0.1	$	—
Notes payable – associated companies		73.7		73.7		—		73.7
Long-term debt, including current portion		412.1		423.8		—		423.8
As of September 30, 2018
Notes payable – associated companies	$	142.5	$	142.5	$	—	$	142.5
Long-term debt		322.6		321.7		—		321.7
As of March 31, 2018
Notes payable – associated companies	$	82.3	$	82.3	$	—	$	82.3
Long-term debt		322.5		332.7		—		332.7

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Fair Value Measurements (Tables)

6 Months Ended

Mar. 31, 2019

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Schedule of Fair Value Assets and Liabilities Measured on Recurring Basis

The information presented below 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. The mutual funds included in Level 2 are valued based on the closing net asset value per unit.

Derivative instruments included in Level 1 are valued using quoted market prices on the New York Mercantile Exchange (“NYMEX”) or the Intercontinental Exchange (“ICE”). Derivative instruments classified in Level 2 include physical commodity 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. The Level 3 balances as of March 31, 2019, September 30, 2018, and March 31, 2018, consisted of gas commodity contracts. 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. 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)		Significant Unobservable Inputs (Level 3)		Effects of Netting and Cash Margin Receivables /Payables			Total
As of March 31, 2019
ASSETS
Gas Utility:
U.S. stock/bond mutual funds	$	19.7	$	—	$	—	$	—		$	19.7
NYMEX/ICE natural gas contracts		2.5		—		—		(2.5	)		—
Gas Marketing:
NYMEX/ICE natural gas contracts		0.2		7.1		—		(4.3	)		3.0
Natural gas commodity contracts		—		30.4		—		(3.4	)		27.0
Other:
U.S. stock/bond mutual funds		11.9		—		—		—			11.9
Total	$	34.3	$	37.5	$	—	$	(10.2	)	$	61.6
LIABILITIES
Gas Marketing:
NYMEX/ICE natural gas contracts	$	0.4	$	4.1	$	-	$	(4.5	)	$	-
Natural gas commodity contracts		—		18.9		0.2		(3.5	)		15.6
Other:
Interest rate swaps		—		15.2		—		—			15.2
Total	$	0.4	$	38.2	$	0.2	$	(8.0	)	$	30.8

	Quoted Prices in Active Markets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Effects of Netting and Cash Margin Receivables /Payables			Total
As of September 30, 2018
ASSETS
Gas Utility:
U.S. stock/bond mutual funds	$	20.3	$	—	$	—	$	—		$	20.3
NYMEX/ICE natural gas contracts		2.7		—		—		(2.7	)		—
Gas Marketing:
NYMEX/ICE natural gas contracts		0.2		4.0		—		(4.2	)		—
Natural gas commodity contracts		—		17.5		—		(1.5	)		16.0
Other:
U.S. stock/bond mutual funds		8.9		—		—		—			8.9
Interest rate swaps		—		3.0		—		—			3.0
Total	$	32.1	$	24.5	$	—	$	(8.4	)	$	48.2
LIABILITIES
Gas Utility:
NYMEX/ICE natural gas contracts	$	1.9	$	—	$	—	$	(1.9	)	$	—
Gas Marketing:
NYMEX/ICE natural gas contracts		0.9		10.5		—		(11.4	)		—
Natural gas commodity contracts		—		7.5		0.2		(1.5	)		6.2
Total	$	2.8	$	18.0	$	0.2	$	(14.8	)	$	6.2
As of March 31, 2018
ASSETS
Gas Utility:
U.S. stock/bond mutual funds	$	19.1	$	4.1	$	—	$	—		$	23.2
NYMEX/ICE natural gas contracts		0.1		—		—		(0.1	)		—
Gas Marketing:
NYMEX/ICE natural gas contracts		0.2		3.3		—		(3.5	)		—
Natural gas commodity contracts		—		7.4		0.1		(2.1	)		5.4
Other:
Interest rate swaps		—		1.0		—		—			1.0
Total	$	19.4	$	15.8	$	0.1	$	(5.7	)	$	29.6
LIABILITIES
Gas Utility:
NYMEX/ICE natural gas contracts	$	0.2	$	—	$	—	$	(0.2	)	$	—
Gas Marketing:
NYMEX/ICE natural gas contracts		0.6		9.8		—		(10.4	)		—
Natural gas commodity contracts		—		14.3		—		(2.1	)		12.2
Total	$	0.8	$	24.1	$	—	$	(12.7	)	$	12.2

Spire Missouri

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Schedule of Fair Value Assets and Liabilities Measured on Recurring Basis

	Quoted Prices in Active Markets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Effects of Netting and Cash Margin Receivables /Payables			Total
As of March 31, 2019
ASSETS
U.S. stock/bond mutual funds	$	19.7	$	—	$	—	$	—		$	19.7
NYMEX/ICE natural gas contracts		2.5		—		—		(2.5	)		—
Total	$	22.2	$	—	$	—	$	(2.5	)	$	19.7
As of September 30, 2018
ASSETS
U.S. stock/bond mutual funds	$	20.3	$	—	$	—	$	—		$	20.3
NYMEX/ICE natural gas contracts		2.7		—		—		(2.7	)		—
Total	$	23.0	$	—	$	—	$	(2.7	)	$	20.3
LIABILITIES
NYMEX/ICE natural gas contracts	$	1.9	$	—	$	—	$	(1.9	)	$	—
As of March 31, 2018
ASSETS
U.S. stock/bond mutual funds	$	19.1	$	4.1	$	—	$	—		$	23.2
NYMEX/ICE natural gas contracts		0.1		—		—		(0.1	)		—
Total	$	19.2	$	4.1	$	—	$	(0.1	)	$	23.2
LIABILITIES
NYMEX/ICE natural gas contracts	$	0.2	$	—	$	—	$	(0.2	)	$	—

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Pension Plans and Other Postretirement Benefits (Tables)

6 Months Ended

Mar. 31, 2019

Pension Plans

Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]

Net periodic cost

The net periodic pension cost included the following components:

	Three Months Ended March 31,						Six Months Ended March 31,
	2019			2018			2019			2018
Spire
Service cost – benefits earned during the period	$	4.9		$	5.2		$	9.7		$	10.4
Interest cost on projected benefit obligation*		7.0			6.9			14.1			13.8
Expected return on plan assets*		(8.9	)		(9.5	)		(18.0	)		(19.2	)
Amortization of prior service credit*		(0.3	)		(0.2	)		(0.6	)		(0.5	)
Amortization of actuarial loss*		2.3			2.9			4.6			6.0
Loss on lump-sum settlements*		—			9.4			—			9.4
Subtotal		5.0			14.7			9.8			19.9
Regulatory adjustment		9.8			24.0			19.7			28.3
Net pension cost	$	14.8		$	38.7		$	29.5		$	48.2
Spire Missouri
Service cost – benefits earned during the period	$	3.1		$	3.2		$	6.2		$	6.5
Interest cost on projected benefit obligation*		4.9			4.9			9.9			9.8
Expected return on plan assets*		(6.3	)		(7.0	)		(12.7	)		(14.2	)
Amortization of prior service cost*		0.2			0.2			0.4			0.4
Amortization of actuarial loss*		2.2			2.5			4.3			5.1
Loss on lump-sum settlements*		—			9.4			—			9.4
Subtotal		4.1			13.2			8.1			17.0
Regulatory adjustment		7.9			21.9			15.9			24.3
Net pension cost	$	12.0		$	35.1		$	24.0		$	41.3
Spire Alabama
Service cost – benefits earned during the period	$	1.6		$	1.7		$	3.1		$	3.3
Interest cost on projected benefit obligation*		1.5			1.4			3.0			2.8
Expected return on plan assets*		(1.8	)		(1.7	)		(3.6	)		(3.4	)
Amortization of prior service credit*		(0.5	)		(0.4	)		(0.9	)		(0.9	)
Amortization of actuarial loss*		0.2			0.4			0.4			0.9
Subtotal		1.0			1.4			2.0			2.7
Regulatory adjustment		1.7			1.9			3.4			3.6
Net pension cost	$	2.7		$	3.3		$	5.4		$	6.3

* Denotes pension expense line items that are recorded below the operating income line in the income statements, in the line items “Other Income, Net” or “Other Income (Expense), Net.”

Postretirement Plans

Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]

Net periodic cost

Net periodic postretirement benefit costs consisted of the following components:

	Three Months Ended March 31,						Six Months Ended March 31,
	2019			2018			2019			2018
Spire
Service cost – benefits earned during the period	$	1.8		$	2.4		$	3.7		$	4.7
Interest cost on accumulated postretirement benefit obligation*		2.1			2.2			4.4			4.4
Expected return on plan assets*		(3.9	)		(3.5	)		(8.0	)		(7.0	)
Amortization of prior service credit*		(0.1	)		(0.1	)		(0.1	)		(0.1	)
Amortization of actuarial (gain) loss*		(0.2	)		0.2			(0.3	)		0.4
Subtotal		(0.3	)		1.2			(0.3	)		2.4
Regulatory adjustment		2.6			—			5.0			0.1
Net postretirement benefit cost	$	2.3		$	1.2		$	4.7		$	2.5
Spire Missouri
Service cost – benefits earned during the period	$	1.7		$	2.3		$	3.4		$	4.5
Interest cost on accumulated postretirement benefit obligation*		1.7			1.8			3.4			3.6
Expected return on plan assets*		(2.7	)		(2.5	)		(5.5	)		(4.9	)
Amortization of prior service cost*		—			—			0.1			0.1
Amortization of actuarial (gain) loss*		(0.2	)		0.2			(0.3	)		0.4
Subtotal		0.5			1.8			1.1			3.7
Regulatory adjustment		3.0			0.5			5.9			1.0
Net postretirement benefit cost	$	3.5		$	2.3		$	7.0		$	4.7
Spire Alabama
Service cost – benefits earned during the period	$	0.1		$	0.1		$	0.2		$	0.1
Interest cost on accumulated postretirement benefit obligation*		0.4			0.3			0.9			0.7
Expected return on plan assets*		(1.2	)		(1.0	)		(2.4	)		(2.0	)
Amortization of prior service credit*		(0.1	)		(0.1	)		(0.2	)		(0.2	)
Subtotal		(0.8	)		(0.7	)		(1.5	)		(1.4	)
Regulatory adjustment		(0.4	)		(0.5	)		(0.9	)		(0.9	)
Net postretirement benefit income	$	(1.2	)	$	(1.2	)	$	(2.4	)	$	(2.3	)

* Denotes other postretirement expense line items that are recorded below the operating income line in the income statements, in the line items “Other Income, Net” or “Other Income (Expense), Net.”

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Information by Operating Segment (Tables)

6 Months Ended

Mar. 31, 2019

Segment Reporting [Abstract]

Schedule of operating segment information

	Gas Utility		Gas Marketing		Other			Eliminations			Consolidated
Three Months Ended March 31, 2019
Operating Revenues:
Revenues from external customers	$	776.7	$	25.4	$	1.4		$	—		$	803.5
Intersegment revenues		0.1		0.1		2.9			(3.1	)		—
Total Operating Revenues		776.8		25.5		4.3			(3.1	)		803.5
Operating Expenses:
Gas Utility
Natural and propane gas		366.7		—		—			(29.3	)		337.4
Operation and maintenance		112.0		—		—			(2.5	)		109.5
Depreciation and amortization		44.4		—		—			—			44.4
Taxes, other than income taxes		57.4		—		—			—			57.4
Total Gas Utility Operating Expenses		580.5		—		—			(31.8	)		548.7
Gas Marketing and Other		—		8.7		7.9			28.7			45.3
Total Operating Expenses		580.5		8.7		7.9			(3.1	)		594.0
Operating Income (Loss)	$	196.3	$	16.8	$	(3.6	)	$	—		$	209.5
Net Economic Earnings (Loss)	$	146.7	$	6.2	$	(5.0	)	$	—		$	147.9

	Gas Utility		Gas Marketing		Other			Eliminations			Consolidated
Three Months Ended March 31, 2018
Operating Revenues:
Revenues from external customers	$	790.6	$	21.3	$	1.5		$	—		$	813.4
Intersegment revenues		0.2		—		2.9			(3.1	)		—
Total Operating Revenues		790.8		21.3		4.4			(3.1	)		813.4
Operating Expenses:
Gas Utility
Natural and propane gas		403.2		—		—			(19.5	)		383.7
Operation and maintenance		137.5		—		—			(2.2	)		135.3
Depreciation and amortization		41.1		—		—			—			41.1
Taxes, other than income taxes		58.0		—		—			—			58.0
Total Gas Utility Operating Expenses		639.8		—		—			(21.7	)		618.1
Gas Marketing and Other		—		20.2		6.4			18.6			45.2
Total Operating Expenses		639.8		20.2		6.4			(3.1	)		663.3
Operating Income (Loss)	$	151.0	$	1.1	$	(2.0	)	$	—		$	150.1
Net Economic Earnings (Loss)	$	131.7	$	10.2	$	(4.7	)	$	—		$	137.2

	Gas Utility		Gas Marketing		Other			Eliminations			Consolidated
Six Months Ended March 31, 2019
Operating Revenues:
Revenues from external customers	$	1,350.5	$	51.2	$	3.8		$	—		$	1,405.5
Intersegment revenues		1.5		0.1		5.9			(7.5	)		—
Total Operating Revenues		1,352.0		51.3		9.7			(7.5	)		1,405.5
Operating Expenses:
Gas Utility
Natural and propane gas		658.5		—		—			(69.4	)		589.1
Operation and maintenance		216.9		—		—			(4.9	)		212.0
Depreciation and amortization		88.1		—		—			—			88.1
Taxes, other than income taxes		96.6		—		—			—			96.6
Total Gas Utility Operating Expenses		1,060.1		—		—			(74.3	)		985.8
Gas Marketing and Other		—		22.0		16.3			66.8			105.1
Total Operating Expenses		1,060.1		22.0		16.3			(7.5	)		1,090.9
Operating Income (Loss)	$	291.9	$	29.3	$	(6.6	)	$	—		$	314.6
Net Economic Earnings (Loss)	$	213.1	$	14.5	$	(13.8	)	$	—		$	213.8
	Gas Utility		Gas Marketing		Other			Eliminations			Consolidated
Six Months Ended March 31, 2018
Operating Revenues:
Revenues from external customers	$	1,332.5	$	40.9	$	1.8		$	—		$	1,375.2
Intersegment revenues		0.3		—		5.4			(5.7	)		—
Total Operating Revenues		1,332.8		40.9		7.2			(5.7	)		1,375.2
Operating Expenses:
Gas Utility
Natural and propane gas		666.6		—		—			(42.1	)		624.5
Operation and maintenance		238.4		—		—			(4.1	)		234.3
Depreciation and amortization		81.4		—		—			—			81.4
Taxes, other than income taxes		94.7		—		—			—			94.7
Total Gas Utility Operating Expenses		1,081.1		—		—			(46.2	)		1,034.9
Gas Marketing and Other		—		34.8		10.9			40.5			86.2
Total Operating Expenses		1,081.1		34.8		10.9			(5.7	)		1,121.1
Operating Income (Loss)	$	251.7	$	6.1	$	(3.7	)	$	—		$	254.1
Net Economic Earnings (Loss)	$	191.2	$	13.8	$	(9.9	)	$	—		$	195.1

The Company’s total assets by segment were as follows:

	March 31,			September 30,			March 31,
	2019			2018			2018
Total Assets:
Gas Utility	$	5,850.1		$	5,606.7		$	5,484.3
Gas Marketing		366.7			295.3			208.6
Other		2,396.8			2,508.0			2,211.9
Eliminations		(1,340.0	)		(1,566.4	)		(1,318.0	)
Total Assets	$	7,273.6		$	6,843.6		$	6,586.8

Schedule of reconciliation of consolidated net economic earnings to consolidated net income

The following table reconciles the Company’s net economic earnings to net income.

	Three Months Ended March 31,						Six Months Ended March 31,
	2019			2018			2019			2018
Net Income	$	154.6		$	98.2		$	221.9		$	214.2
Adjustments, pre-tax:
Missouri regulatory adjustments		—			30.6			—			30.6
Unrealized (gain) loss on energy-related derivatives		(9.1	)		11.8			(11.3	)		12.6
Realized gain on economic hedges prior to the sale of the physical commodity		—			(0.2	)		—			(0.3	)
Acquisition, divestiture and restructuring activities		—			2.0			0.4			3.7
Income tax effect of adjustments		2.4			(11.1	)		2.8			(11.7	)
Effect of the Tax Cuts and Jobs Act		—			5.9			—			(54.0	)
Net Economic Earnings	$	147.9		$	137.2		$	213.8		$	195.1

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Summary of Significant Accounting Policies - Additional Information (Details) $ in Millions	3 Months Ended	6 Months Ended			12 Months Ended
	Mar. 31, 2018 USD ($)	Mar. 31, 2019 reporting_unit	Mar. 31, 2019 operating-segment	Mar. 31, 2018 USD ($)	Sep. 30, 2018 USD ($)	Sep. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Number of operating segments		2	2
ASU 2017-07
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Reclassification of net periodic benefit costs (income) to other income, net	$ 8.3			$ 7.2	$ 14.4	$ 19.2	$ 9.6
Spire Missouri | ASU 2017-07
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Reclassification of net periodic benefit costs (income) to other income, net	9.5			9.7	17.2	17.2	11.2
Spire Alabama | ASU 2017-07
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Reclassification of net periodic benefit costs (income) to other income, net	$ (1.1)			$ (2.1)	$ (2.0)	$ 2.2	$ (1.6)

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Summary of Significant Accounting Policies - Schedule of Inter-company Transactions (Details) - Affiliated Entity - Spire Missouri - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019	Mar. 31, 2018
Spire Marketing | Regulated Operation
Related Party Transaction [Line Items]
Purchases of natural gas from Spire Marketing	$ 29.2	$ 19.3	$ 69.0	$ 41.6
Sales of natural gas to Spire Marketing		0.2	1.4	0.3
Spire NGL Inc. | Unregulated Operation
Related Party Transaction [Line Items]
Transportation services received from Spire NGL Inc.	$ 0.2	$ 0.2	$ 0.5	$ 0.5

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Summary of Significant Accounting Policies - Accrued Capital Expenditures (Details) - USD ($) $ in Millions	6 Months Ended		12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Sep. 30, 2018
Schedule Of Accrued Capital Expenditures Excluded From Statement Of Cash Flow [Line Items]
Accruals for capital expenditures	$ 63.6	$ 29.1	$ 62.1
Spire Missouri
Schedule Of Accrued Capital Expenditures Excluded From Statement Of Cash Flow [Line Items]
Accruals for capital expenditures	19.0	17.9	36.7
Spire Alabama
Schedule Of Accrued Capital Expenditures Excluded From Statement Of Cash Flow [Line Items]
Accruals for capital expenditures	$ 12.1	$ 7.0	$ 8.9

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Revenue - Schedule of Revenue Disaggregated by Source and Customer Type (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019	Mar. 31, 2018
Disaggregation Of Revenue [Line Items]
Total operating revenues	$ 776.7	$ 790.6	$ 1,350.5	$ 1,332.5
Total operating revenues	26.8	22.8	55.0	42.7
Total operating revenues	803.5	813.4	1,405.5	1,375.2
Intersegment Eliminations
Disaggregation Of Revenue [Line Items]
Total operating revenues	(3.1)	(3.1)	(7.5)	(5.7)
Gas Utility
Disaggregation Of Revenue [Line Items]
Total operating revenues	776.7	790.6	1,350.5	1,332.5
Gas Utility | Operating Segments
Disaggregation Of Revenue [Line Items]
Total operating revenues	776.8	790.8	1,352.0	1,332.8
Gas Utility | Intersegment Eliminations
Disaggregation Of Revenue [Line Items]
Total operating revenues	0.1	0.2	1.5	0.3
Gas Marketing
Disaggregation Of Revenue [Line Items]
Total operating revenues	25.4	21.3	51.2	40.9
Gas Marketing | Operating Segments
Disaggregation Of Revenue [Line Items]
Total operating revenues	25.5	21.3	51.3	$ 40.9
Gas Marketing | Intersegment Eliminations
Disaggregation Of Revenue [Line Items]
Total operating revenues	0.1	$ 0.0	0.1
Spire
Disaggregation Of Revenue [Line Items]
Total operating revenues	803.5		1,405.5
Spire | Operating Segments
Disaggregation Of Revenue [Line Items]
Total operating revenues	806.6		1,413.0
Spire | Intersegment Eliminations
Disaggregation Of Revenue [Line Items]
Total operating revenues	(3.1)		(7.5)
Spire | Gas Utility | Operating Segments
Disaggregation Of Revenue [Line Items]
Total operating revenues	790.9		1,371.9
Changes in accrued revenue under alternative revenue programs	(14.1)		(19.9)
Total operating revenues	776.8		1,352.0
Spire | Gas Utility | Operating Segments | Residential
Disaggregation Of Revenue [Line Items]
Total operating revenues	551.3		944.9
Spire | Gas Utility | Operating Segments | Commercial & Industrial
Disaggregation Of Revenue [Line Items]
Total operating revenues	185.9		316.2
Spire | Gas Utility | Operating Segments | Transportation
Disaggregation Of Revenue [Line Items]
Total operating revenues	31.3		60.8
Spire | Gas Utility | Operating Segments | Off-system & Other Incentive
Disaggregation Of Revenue [Line Items]
Total operating revenues	11.5		26.4
Spire | Gas Utility | Operating Segments | Other Customer Revenue
Disaggregation Of Revenue [Line Items]
Total operating revenues	10.9		23.6
Spire | Gas Marketing | Operating Segments
Disaggregation Of Revenue [Line Items]
Total operating revenues	25.5		51.3
Spire | Gas Marketing | Operating Segments | Revenue From Contracts With Retail Customers
Disaggregation Of Revenue [Line Items]
Total operating revenues	25.5		51.3
Spire | Other | Operating Segments
Disaggregation Of Revenue [Line Items]
Total operating revenues	$ 4.3		$ 9.7

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Revenue - Schedule of Operating Revenue Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019	Mar. 31, 2018
Disaggregation Of Revenue [Line Items]
Total Operating Revenues	$ 803.5	$ 813.4	$ 1,405.5	$ 1,375.2
Spire Missouri
Disaggregation Of Revenue [Line Items]
Total operating revenues	565.7		983.4
Changes in accrued revenue under alternative revenue programs	(9.1)		(13.6)
Total Operating Revenues	556.6	533.2	969.8	925.5
Spire Missouri | Residential
Disaggregation Of Revenue [Line Items]
Total operating revenues	410.9		713.0
Spire Missouri | Commercial & Industrial
Disaggregation Of Revenue [Line Items]
Total operating revenues	129.2		218.3
Spire Missouri | Transportation
Disaggregation Of Revenue [Line Items]
Total operating revenues	9.9		18.9
Spire Missouri | Off-system & Other Incentive
Disaggregation Of Revenue [Line Items]
Total operating revenues	11.5		26.4
Spire Missouri | Other Customer Revenue
Disaggregation Of Revenue [Line Items]
Total operating revenues	4.2		6.8
Spire Alabama
Disaggregation Of Revenue [Line Items]
Total operating revenues	185.1		319.7
Changes in accrued revenue under alternative revenue programs	(4.7)		(5.8)
Total Operating Revenues	180.4	$ 218.3	313.9	$ 339.1
Spire Alabama | Residential
Disaggregation Of Revenue [Line Items]
Total operating revenues	116.9		192.3
Spire Alabama | Commercial & Industrial
Disaggregation Of Revenue [Line Items]
Total operating revenues	44.1		75.5
Spire Alabama | Transportation
Disaggregation Of Revenue [Line Items]
Total operating revenues	18.8		37.0
Spire Alabama | Other Customer Revenue
Disaggregation Of Revenue [Line Items]
Total operating revenues	$ 5.3		$ 14.9

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Revenue - Additional Information (Details)	6 Months Ended
	Mar. 31, 2019
Revenue Recognition [Line Items]
Remaining performance obligation, practical expedient	true
Maximum
Revenue Recognition [Line Items]
Revenue remaining performance obligation original excepted duration	1 year

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Revenue - Schedule of Gross Receipts Taxes Recorded Revenues (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019	Mar. 31, 2018
Scheduleof Gross Receipts Taxes [Line Items]
Gross receipts taxes recorded in regulated gas distribution operating revenues	$ 43.5	$ 43.6	$ 69.4	$ 66.7
Spire Missouri
Scheduleof Gross Receipts Taxes [Line Items]
Gross receipts taxes recorded in regulated gas distribution operating revenues	32.1	30.6	50.6	46.8
Spire Alabama
Scheduleof Gross Receipts Taxes [Line Items]
Gross receipts taxes recorded in regulated gas distribution operating revenues	$ 9.6	$ 11.6	$ 15.9	$ 17.2

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Earnings Per Share - Schedule of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended				6 Months Ended
	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2019	Mar. 31, 2018
Basic Earnings Per Share:
Net Income	$ 154.6	$ 67.3	$ 98.2	$ 116.0	$ 221.9	$ 214.2
Less: Income allocated to participating securities	0.3		0.2		0.5	0.5
Income Available to Common Shareholders	$ 154.3		$ 98.0		$ 221.4	$ 213.7
Weighted Average Shares Outstanding (in millions)	50.6		48.2		50.6	48.2
Basic Earnings Per Share	$ 3.05		$ 2.03		$ 4.37	$ 4.43
Diluted Earnings Per Share:
Net Income	$ 154.6	$ 67.3	$ 98.2	$ 116.0	$ 221.9	$ 214.2
Less: Income allocated to participating securities	0.3		0.2		0.5	0.5
Income Available to Common Shareholders	$ 154.3		$ 98.0		$ 221.4	$ 213.7
Weighted Average Shares Outstanding (in millions)	50.6		48.2		50.6	48.2
Dilutive Effect of Restricted Stock and Restricted Stock Units (in millions)	0.2		0.2		0.2	0.2
Weighted Average Diluted Shares (in millions)	50.8		48.4		50.8	48.4
Diluted Earnings Per Share	$ 3.04		$ 2.03		$ 4.36	$ 4.42

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Earnings Per Share - Schedule of Basic and Diluted Earnings Per Share (Parenthetical) (Details) - shares shares in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019	Mar. 31, 2018
Restricted Stock and Restricted Stock Units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Outstanding shares excluded from calculation of diluted EPS (in shares)	0.3	0.4	0.3	0.4

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Regulatory Matters - Schedule of Regulatory Assets and Liabilities, Reflected in Balance Sheets (Details) - USD ($) $ in Millions	Mar. 31, 2019	Sep. 30, 2018	Mar. 31, 2018
Regulatory Asset And Liabilities [Line Items]
Regulatory assets, current	$ 75.3	$ 72.8	$ 97.7
Regulatory assets, non current	659.9	669.8	673.6
Total Regulatory Assets	735.2	742.6	771.3
Regulatory liabilities, current	35.3	35.7	22.2
Regulatory liabilities, non current	431.3	354.6	353.1
Total Regulatory Liabilities	466.6	390.3	375.3
Spire Missouri
Regulatory Asset And Liabilities [Line Items]
Regulatory assets, current	30.0	30.7	51.7
Regulatory assets, non current	433.6	441.1	446.6
Total Regulatory Assets	463.6	471.8	498.3
Regulatory liabilities, current	24.2	16.7	2.7
Regulatory liabilities, non current	345.1	274.9	272.5
Total Regulatory Liabilities	369.3	291.6	275.2
Spire Alabama
Regulatory Asset And Liabilities [Line Items]
Regulatory assets, current	30.4	26.2	32.1
Regulatory assets, non current	198.9	201.5	198.9
Total Regulatory Assets	229.3	227.7	231.0
Regulatory liabilities, current	6.1	7.6	10.8
Regulatory liabilities, non current	30.5	31.3	35.0
Total Regulatory Liabilities	36.6	38.9	45.8
Pension and Postretirement Benefit Costs
Regulatory Asset And Liabilities [Line Items]
Regulatory assets, current	30.2	30.2	43.0
Regulatory assets, non current	345.8	364.9	358.2
Pension and Postretirement Benefit Costs | Spire Missouri
Regulatory Asset And Liabilities [Line Items]
Regulatory assets, current	21.9	21.9	34.9
Regulatory assets, non current	277.9	292.5	279.0
Pension and Postretirement Benefit Costs | Spire Alabama
Regulatory Asset And Liabilities [Line Items]
Regulatory assets, current	7.3	7.3	7.1
Regulatory assets, non current	61.1	64.8	71.2
Unamortized Purchased Gas Adjustments
Regulatory Asset And Liabilities [Line Items]
Regulatory assets, current	19.3	8.2	32.6
Unamortized Purchased Gas Adjustments | Spire Missouri
Regulatory Asset And Liabilities [Line Items]
Regulatory assets, current	0.6	1.0	13.5
Unamortized Purchased Gas Adjustments | Spire Alabama
Regulatory Asset And Liabilities [Line Items]
Regulatory assets, current	18.0	6.4	19.0
Other
Regulatory Asset And Liabilities [Line Items]
Regulatory assets, current	25.8	34.4	22.1
Regulatory assets, non current	45.3	42.4	46.1
Other | Spire Missouri
Regulatory Asset And Liabilities [Line Items]
Regulatory assets, current	7.5	7.8	3.3
Regulatory assets, non current	24.7	21.4	24.9
Other | Spire Alabama
Regulatory Asset And Liabilities [Line Items]
Regulatory assets, current	5.1	12.5	6.0
Regulatory assets, non current	3.2	3.3	2.7
Future Income Taxes Due from Customers
Regulatory Asset And Liabilities [Line Items]
Regulatory assets, non current	102.2	96.3	113.0
Future Income Taxes Due from Customers | Spire Missouri
Regulatory Asset And Liabilities [Line Items]
Regulatory assets, non current	99.0	94.4	111.4
Accrued Cost of Removal
Regulatory Asset And Liabilities [Line Items]
Regulatory assets, non current	134.6	133.4	125.0
Accrued Cost of Removal | Spire Alabama
Regulatory Asset And Liabilities [Line Items]
Regulatory assets, non current	134.6	133.4	125.0
Energy Efficiency
Regulatory Asset And Liabilities [Line Items]
Regulatory assets, non current	32.0	32.8	31.3
Energy Efficiency | Spire Missouri
Regulatory Asset And Liabilities [Line Items]
Regulatory assets, non current	32.0	32.8	31.3
Pension and Postretirement Benefit Costs
Regulatory Asset And Liabilities [Line Items]
Regulatory liabilities, current	5.8	2.2	2.2
Regulatory liabilities, non current	115.3	27.8	30.8
Pension and Postretirement Benefit Costs | Spire Missouri
Regulatory Asset And Liabilities [Line Items]
Regulatory liabilities, current	3.6	0.0	0.0
Regulatory liabilities, non current	79.4	0.0	0.0
Pension and Postretirement Benefit Costs | Spire Alabama
Regulatory Asset And Liabilities [Line Items]
Regulatory liabilities, current	2.2	2.2	2.2
Regulatory liabilities, non current	26.5	27.8	30.8
Unamortized Purchased Gas Adjustments
Regulatory Asset And Liabilities [Line Items]
Regulatory liabilities, current	3.4	2.9	1.5
Regulatory liabilities, non current	75.7	4.7	50.3
Unamortized Purchased Gas Adjustments | Spire Missouri
Regulatory Asset And Liabilities [Line Items]
Regulatory liabilities, current	2.7	1.9	0.0
Regulatory liabilities, non current	75.7	4.7	50.3
Other
Regulatory Asset And Liabilities [Line Items]
Regulatory liabilities, current	26.1	30.6	18.5
Regulatory liabilities, non current	30.9	80.2	30.3
Other | Spire Missouri
Regulatory Asset And Liabilities [Line Items]
Regulatory liabilities, current	17.9	14.8	2.7
Regulatory liabilities, non current	24.9	69.3	20.9
Other | Spire Alabama
Regulatory Asset And Liabilities [Line Items]
Regulatory liabilities, current	3.9	5.4	8.6
Regulatory liabilities, non current	4.0	3.5	4.2
Deferred Taxes Due to Customers
Regulatory Asset And Liabilities [Line Items]
Regulatory liabilities, non current	155.7	178.3	170.7
Deferred Taxes Due to Customers | Spire Missouri
Regulatory Asset And Liabilities [Line Items]
Regulatory liabilities, non current	138.3	161.1	152.6
Accrued Cost of Removal
Regulatory Asset And Liabilities [Line Items]
Regulatory liabilities, non current	53.7	63.6	71.0
Accrued Cost of Removal | Spire Missouri
Regulatory Asset And Liabilities [Line Items]
Regulatory liabilities, non current	$ 26.8	$ 39.8	$ 48.7

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Regulatory Matters - Schedule of Regulatory Assets Not Earning a Return (Details) - USD ($) $ in Millions	Mar. 31, 2019	Sep. 30, 2018	Mar. 31, 2018
Regulatory Assets [Line Items]
Total Regulatory Assets Not Earning a Return	$ 261.7	$ 259.8	$ 309.8
Pension and Postretirement Benefit Costs
Regulatory Assets [Line Items]
Total Regulatory Assets Not Earning a Return	144.7	148.4	185.8
Future Income Taxes Due from Customers
Regulatory Assets [Line Items]
Total Regulatory Assets Not Earning a Return	102.2	96.3	113.0
Other
Regulatory Assets [Line Items]
Total Regulatory Assets Not Earning a Return	14.8	15.1	11.0
Spire Missouri
Regulatory Assets [Line Items]
Total Regulatory Assets Not Earning a Return	258.5	257.9	308.2
Spire Missouri | Pension and Postretirement Benefit Costs
Regulatory Assets [Line Items]
Total Regulatory Assets Not Earning a Return	144.7	148.4	185.8
Spire Missouri | Future Income Taxes Due from Customers
Regulatory Assets [Line Items]
Total Regulatory Assets Not Earning a Return	99.0	94.4	111.4
Spire Missouri | Other
Regulatory Assets [Line Items]
Total Regulatory Assets Not Earning a Return	$ 14.8	$ 15.1	$ 11.0

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Regulatory Matters - Additional Information (Details) $ in Millions					6 Months Ended	7 Months Ended
	Jan. 14, 2019 USD ($)	Nov. 30, 2018 USD ($)	Sep. 28, 2018 USD ($)	Apr. 25, 2018 USD ($)	Mar. 31, 2019 USD ($) mi $ / MMBTU	Jan. 31, 2019 USD ($)
Public Utilities, General Disclosures [Line Items]
Remaining recovery period for certain regulatory assets for which no return on investment during recovery period is provided (in years)					20 years
Remaining recovery period for regulatory assets for which no return on investment during recovery period is provided (in years)					15 years
Length of dual 20-inch diameter pipeline | mi					10.1
Spire Missouri
Public Utilities, General Disclosures [Line Items]
Increase in negotiated rate per day | $ / MMBTU					0.02
Spire Alabama
Public Utilities, General Disclosures [Line Items]
Approved rate increase (decrease) amount					$ (3.3)
Public utilities, requested rate increase (decrease), amount		$ 8.7
Infrastructure System Replacement Surcharge | Spire Missouri East
Public Utilities, General Disclosures [Line Items]
Approved rate increase (decrease) amount			$ 2.6
Applications requests for the approval of revenue related to commission amount						$ 7.4
Infrastructure System Replacement Surcharge | Spire Missouri West
Public Utilities, General Disclosures [Line Items]
Approved rate increase (decrease) amount			$ 5.4
Applications requests for the approval of revenue related to commission amount						$ 7.4
Infrastructure System Replacement Surcharge | Spire Missouri
Public Utilities, General Disclosures [Line Items]
Public utilities, requested rate increase (decrease), amount	$ 3.2
Infrastructure System Replacement Surcharge | MoPSC
Public Utilities, General Disclosures [Line Items]
Approved rate increase (decrease), costs from buildings sold in 2014 excluded from rate base				$ 1.8
Rate case expenses				0.9
Pension Cost | Infrastructure System Replacement Surcharge | MoPSC
Public Utilities, General Disclosures [Line Items]
Regulatory assets recovery				$ 28.8

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Financing Arrangements and Long-term Debt - Additional Information (Details)	1 Months Ended		6 Months Ended
	Dec. 31, 2018 USD ($)	Oct. 31, 2018 USD ($)	Mar. 31, 2019 USD ($)	Jan. 15, 2019 USD ($)	Sep. 30, 2018 USD ($)	Mar. 31, 2018 USD ($)	Dec. 14, 2016 bank
Line of Credit Facility [Line Items]
Line of credit facility borrowing capacity			$ 975,000,000
Credit facility borrowings			0		$ 0	$ 0
Non-interest-bearing Note
Line of Credit Facility [Line Items]
Settlement of debt		$ 10,000,000
Term Loan
Line of Credit Facility [Line Items]
Long-term Debt	$ 100,000,000
Debt instrument, maturity date	Dec. 01, 2021
Liabilities | Lender Concentration Risk
Line of Credit Facility [Line Items]
Line of credit facility, number of banks in agreement | bank							11
Spire
Line of Credit Facility [Line Items]
Line of credit facility borrowing capacity			300,000,000
Short-term borrowings used to support lending to Utilities			344,600,000
Spire Missouri
Line of Credit Facility [Line Items]
Line of credit facility borrowing capacity			475,000,000
Spire Alabama
Line of Credit Facility [Line Items]
Line of credit facility borrowing capacity			$ 200,000,000
Spire Alabama | Senior Notes | Private Placement | Series 2019 A senior notes due 2049
Line of Credit Facility [Line Items]
Long-term debt				$ 90,000,000
Stated interest rate				4.64%
Line of Credit
Line of Credit Facility [Line Items]
Minimum required ratio of earnings before interest, taxes, depreciation, and amortization (EBITDA) times interest expense as required by the line of credit covenant			70.00%
Debt to total capitalization ratio			0.54
Line of Credit | Spire Missouri
Line of Credit Facility [Line Items]
Debt to total capitalization ratio			0.47
Line of Credit | Spire Alabama
Line of Credit Facility [Line Items]
Debt to total capitalization ratio			0.37
Commercial Paper Notes
Line of Credit Facility [Line Items]
Long-term debt			$ 975,000,000
Debt term			365 days

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Financing Arrangements and Long-term Debt - Schedule of Spire Missouri and Alabama Short-term Borrowings (Details) - USD ($) $ in Millions	6 Months Ended
	Mar. 31, 2019	Sep. 30, 2018	Mar. 31, 2018
Spire Missouri | Borrowings
Short-term Debt [Line Items]
Weighted average borrowings outstanding	$ 313.5
Weighted average interest rate	2.80%
Minimum borrowing outstanding	$ 205.1
Maximum borrowing outstanding	404.9
Borrowings outstanding	$ 232.9	$ 345.3	$ 175.8
Weighted average interest rate	2.80%	2.30%	2.20%
Spire Alabama | Borrowings
Short-term Debt [Line Items]
Weighted average borrowings outstanding	$ 117.3
Weighted average interest rate	2.80%
Minimum borrowing outstanding	$ 43.8
Maximum borrowing outstanding	169.2
Borrowings outstanding	$ 73.7	$ 142.5	$ 82.3
Weighted average interest rate	2.80%	2.30%	2.20%
Spire | Commercial Paper Notes
Short-term Debt [Line Items]
Weighted average borrowings outstanding	$ 598.3
Weighted average interest rate	2.80%
Minimum borrowing outstanding	$ 482.5
Maximum borrowing outstanding	689.3
Borrowings outstanding	$ 512.0	$ 553.6	$ 391.7
Weighted average interest rate	2.80%	2.40%	2.20%

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Financing Arrangements and Long-term Debt - Summary of Net of Capitalized Interest (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019	Mar. 31, 2018
Spire
Line of Credit Facility [Line Items]
Interest expense, net	$ 1.4	$ 0.6	$ 2.6	$ 1.0
Spire Missouri
Line of Credit Facility [Line Items]
Interest expense, net	$ 0.4	$ 0.2	$ 0.9	$ 0.4

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Fair Value of Financial Instruments - Summary of Financial Instruments Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Millions	Mar. 31, 2019	Sep. 30, 2018	Mar. 31, 2018
Quoted Prices in Active Markets (Level 1)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	$ 11.1	$ 4.4	$ 17.8
Quoted Prices in Active Markets (Level 1) | Spire Missouri
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	6.9	2.0	10.2
Quoted Prices in Active Markets (Level 1) | Spire Alabama
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	0.1
Significant Observable Inputs (Level 2)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes payable	512.0	553.6	391.7
Long-term debt, including current portion	2,319.9	2,074.0	2,241.3
Significant Observable Inputs (Level 2) | Spire Missouri
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, including current portion	1,036.9	906.6	1,033.6
Significant Observable Inputs (Level 2) | Spire Missouri | Affiliated Entity
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes payable	232.9	345.3	175.8
Significant Observable Inputs (Level 2) | Spire Alabama
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, including current portion	423.8	321.7	332.7
Significant Observable Inputs (Level 2) | Spire Alabama | Affiliated Entity
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes payable	73.7	142.5	82.3
Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	11.1	4.4	17.8
Notes payable	512.0	553.6	391.7
Long-term debt, including current portion	2,256.9	2,075.6	2,179.4
Carrying Amount | Spire Missouri
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	6.9	2.0	10.2
Long-term debt, including current portion	974.7	874.4	974.0
Carrying Amount | Spire Missouri | Affiliated Entity
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes payable	232.9	345.3	175.8
Carrying Amount | Spire Alabama
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	0.1
Long-term debt, including current portion	412.1	322.6	322.5
Carrying Amount | Spire Alabama | Affiliated Entity
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes payable	73.7	142.5	82.3
Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	11.1	4.4	17.8
Notes payable	512.0	553.6	391.7
Long-term debt, including current portion	2,319.9	2,074.0	2,241.3
Fair Value | Spire Missouri
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	6.9	2.0	10.2
Long-term debt, including current portion	1,036.9	906.6	1,033.6
Fair Value | Spire Missouri | Affiliated Entity
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes payable	232.9	345.3	175.8
Fair Value | Spire Alabama
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	0.1
Long-term debt, including current portion	423.8	321.7	332.7
Fair Value | Spire Alabama | Affiliated Entity
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes payable	$ 73.7	$ 142.5	$ 82.3

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Fair Value Measurements - Schedule of Fair Value Assets and Liabilities Measured on Recurring Basis (Details) - Fair Value, Measurements, Recurring - USD ($) $ in Millions	Mar. 31, 2019	Sep. 30, 2018	Mar. 31, 2018
ASSETS
Effects of netting and cash margin receivables/payables	$ (10.2)	$ (8.4)	$ (5.7)
Derivative asset after the effects of netting	61.6	48.2	29.6
LIABILITIES
Effects of netting and cash margin receivables/payables	(8.0)	(14.8)	(12.7)
Derivative liability after the effects of netting	30.8	6.2	12.2
Spire Missouri
ASSETS
Effects of netting and cash margin receivables/payables	(2.5)	(2.7)	(0.1)
Derivative asset after the effects of netting	19.7	20.3	23.2
U.S. stock/bond mutual funds | Spire Missouri
ASSETS
Effects of netting and cash margin receivables/payables	0.0	0.0	0.0
Derivative asset after the effects of netting	19.7	20.3	23.2
NYMEX/ICE natural gas contracts | Spire Missouri
ASSETS
Effects of netting and cash margin receivables/payables	(2.5)	(2.7)	(0.1)
Derivative asset after the effects of netting	0.0	0.0	0.0
LIABILITIES
Effects of netting and cash margin receivables/payables		(1.9)	(0.2)
Derivative liability after the effects of netting		0.0	0.0
Quoted Prices in Active Markets (Level 1)
ASSETS
Derivative asset before effects of netting	34.3	32.1	19.4
LIABILITIES
Derivative liability before effects of netting	0.4	2.8	0.8
Quoted Prices in Active Markets (Level 1) | Spire Missouri
ASSETS
Derivative asset before effects of netting	22.2	23.0	19.2
Quoted Prices in Active Markets (Level 1) | U.S. stock/bond mutual funds | Spire Missouri
ASSETS
Derivative asset before effects of netting	19.7	20.3	19.1
Quoted Prices in Active Markets (Level 1) | NYMEX/ICE natural gas contracts | Spire Missouri
ASSETS
Derivative asset before effects of netting	2.5	2.7	0.1
LIABILITIES
Derivative liability before effects of netting		1.9	0.2
Significant Observable Inputs (Level 2)
ASSETS
Derivative asset before effects of netting	37.5	24.5	15.8
LIABILITIES
Derivative liability before effects of netting	38.2	18.0	24.1
Significant Observable Inputs (Level 2) | Spire Missouri
ASSETS
Derivative asset before effects of netting	0.0	0.0	4.1
Significant Observable Inputs (Level 2) | U.S. stock/bond mutual funds | Spire Missouri
ASSETS
Derivative asset before effects of netting	0.0	0.0	4.1
Significant Observable Inputs (Level 2) | NYMEX/ICE natural gas contracts | Spire Missouri
ASSETS
Derivative asset before effects of netting	0.0	0.0	0.0
LIABILITIES
Derivative liability before effects of netting		0.0	0.0
Significant Unobservable Inputs (Level 3)
ASSETS
Derivative asset before effects of netting	0.0	0.0	0.1
LIABILITIES
Derivative liability before effects of netting	0.2	0.2	0.0
Significant Unobservable Inputs (Level 3) | Spire Missouri
ASSETS
Derivative asset before effects of netting	0.0	0.0	0.0
Significant Unobservable Inputs (Level 3) | U.S. stock/bond mutual funds | Spire Missouri
ASSETS
Derivative asset before effects of netting	0.0	0.0	0.0
Significant Unobservable Inputs (Level 3) | NYMEX/ICE natural gas contracts | Spire Missouri
ASSETS
Derivative asset before effects of netting	0.0	0.0	0.0
LIABILITIES
Derivative liability before effects of netting		0.0	0.0
Corporate, Non-Segment | U.S. stock/bond mutual funds
ASSETS
Effects of netting and cash margin receivables/payables	0.0	0.0
Derivative asset after the effects of netting	11.9	8.9
Corporate, Non-Segment | Interest rate swaps
ASSETS
Effects of netting and cash margin receivables/payables		0.0	0.0
Derivative asset after the effects of netting		3.0	1.0
LIABILITIES
Effects of netting and cash margin receivables/payables	0.0
Derivative liability after the effects of netting	15.2
Corporate, Non-Segment | Quoted Prices in Active Markets (Level 1) | U.S. stock/bond mutual funds
ASSETS
Derivative asset before effects of netting	11.9	8.9
Corporate, Non-Segment | Quoted Prices in Active Markets (Level 1) | Interest rate swaps
ASSETS
Derivative asset before effects of netting		0.0	0.0
LIABILITIES
Derivative liability before effects of netting	0.0
Corporate, Non-Segment | Significant Observable Inputs (Level 2) | U.S. stock/bond mutual funds
ASSETS
Derivative asset before effects of netting	0.0	0.0
Corporate, Non-Segment | Significant Observable Inputs (Level 2) | Interest rate swaps
ASSETS
Derivative asset before effects of netting		3.0	1.0
LIABILITIES
Derivative liability before effects of netting	15.2
Corporate, Non-Segment | Significant Unobservable Inputs (Level 3) | U.S. stock/bond mutual funds
ASSETS
Derivative asset before effects of netting	0.0	0.0
Corporate, Non-Segment | Significant Unobservable Inputs (Level 3) | Interest rate swaps
ASSETS
Derivative asset before effects of netting		0.0	0.0
LIABILITIES
Derivative liability before effects of netting	0.0
Gas Utility | Operating Segments | U.S. stock/bond mutual funds
ASSETS
Effects of netting and cash margin receivables/payables	0.0	0.0	0.0
Derivative asset after the effects of netting	19.7	20.3	23.2
Gas Utility | Operating Segments | NYMEX/ICE natural gas contracts
ASSETS
Effects of netting and cash margin receivables/payables	(2.5)	(2.7)	(0.1)
Derivative asset after the effects of netting	0.0	0.0	0.0
LIABILITIES
Effects of netting and cash margin receivables/payables		(1.9)	(0.2)
Derivative liability after the effects of netting		0.0	0.0
Gas Utility | Operating Segments | Quoted Prices in Active Markets (Level 1) | U.S. stock/bond mutual funds
ASSETS
Derivative asset before effects of netting	19.7	20.3	19.1
Gas Utility | Operating Segments | Quoted Prices in Active Markets (Level 1) | NYMEX/ICE natural gas contracts
ASSETS
Derivative asset before effects of netting	2.5	2.7	0.1
LIABILITIES
Derivative liability before effects of netting		1.9	0.2
Gas Utility | Operating Segments | Significant Observable Inputs (Level 2) | U.S. stock/bond mutual funds
ASSETS
Derivative asset before effects of netting	0.0	0.0	4.1
Gas Utility | Operating Segments | Significant Observable Inputs (Level 2) | NYMEX/ICE natural gas contracts
ASSETS
Derivative asset before effects of netting	0.0	0.0	0.0
LIABILITIES
Derivative liability before effects of netting		0.0	0.0
Gas Utility | Operating Segments | Significant Unobservable Inputs (Level 3) | U.S. stock/bond mutual funds
ASSETS
Derivative asset before effects of netting	0.0	0.0	0.0
Gas Utility | Operating Segments | Significant Unobservable Inputs (Level 3) | NYMEX/ICE natural gas contracts
ASSETS
Derivative asset before effects of netting	0.0	0.0	0.0
LIABILITIES
Derivative liability before effects of netting		0.0	0.0
Gas Marketing | Operating Segments | NYMEX/ICE natural gas contracts
ASSETS
Effects of netting and cash margin receivables/payables	(4.3)	(4.2)	(3.5)
Derivative asset after the effects of netting	3.0	0.0	0.0
LIABILITIES
Effects of netting and cash margin receivables/payables	(4.5)	(11.4)	(10.4)
Derivative liability after the effects of netting	0.0	0.0	0.0
Gas Marketing | Operating Segments | Natural gas commodity contracts
ASSETS
Effects of netting and cash margin receivables/payables	(3.4)	(1.5)	(2.1)
Derivative asset after the effects of netting	27.0	16.0	5.4
LIABILITIES
Effects of netting and cash margin receivables/payables	(3.5)	(1.5)	(2.1)
Derivative liability after the effects of netting	15.6	6.2	12.2
Gas Marketing | Operating Segments | Quoted Prices in Active Markets (Level 1) | NYMEX/ICE natural gas contracts
ASSETS
Derivative asset before effects of netting	0.2	0.2	0.2
LIABILITIES
Derivative liability before effects of netting	0.4	0.9	0.6
Gas Marketing | Operating Segments | Quoted Prices in Active Markets (Level 1) | Natural gas commodity contracts
ASSETS
Derivative asset before effects of netting	0.0	0.0	0.0
LIABILITIES
Derivative liability before effects of netting	0.0	0.0	0.0
Gas Marketing | Operating Segments | Significant Observable Inputs (Level 2) | NYMEX/ICE natural gas contracts
ASSETS
Derivative asset before effects of netting	7.1	4.0	3.3
LIABILITIES
Derivative liability before effects of netting	4.1	10.5	9.8
Gas Marketing | Operating Segments | Significant Observable Inputs (Level 2) | Natural gas commodity contracts
ASSETS
Derivative asset before effects of netting	30.4	17.5	7.4
LIABILITIES
Derivative liability before effects of netting	18.9	7.5	14.3
Gas Marketing | Operating Segments | Significant Unobservable Inputs (Level 3) | NYMEX/ICE natural gas contracts
ASSETS
Derivative asset before effects of netting	0.0	0.0	0.0
LIABILITIES
Derivative liability before effects of netting	0.0	0.0	0.0
Gas Marketing | Operating Segments | Significant Unobservable Inputs (Level 3) | Natural gas commodity contracts
ASSETS
Derivative asset before effects of netting	0.0	0.0	0.1
LIABILITIES
Derivative liability before effects of netting	$ 0.2	$ 0.2	$ 0.0

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Fair Value Measurements - Additional Information (Details) - USD ($)	Mar. 31, 2019	Sep. 30, 2018	Mar. 31, 2018
Spire Alabama
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Outstanding derivative contracts	$ 0	$ 0	$ 0

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Concentration of Credit Risk - Additional Information (Details) $ in Millions	6 Months Ended
	Mar. 31, 2019 USD ($) subsegment counterparty
Concentration Risk [Line Items]
Number of groups with potential to affect overall exposure | subsegment	3
Number of large counterparties for which credit risk is disclosed | counterparty	5
Number of counterparties with investment-grade rating | counterparty	4
Energy Producers And Their Affiliates
Concentration Risk [Line Items]
Accounts receivable	$ 18.1
Net receivable amount	7.3
Utility Companies And Their Affiliates
Concentration Risk [Line Items]
Accounts receivable	94.8
Net receivable amount	84.0
Five Largest Counterparties
Concentration Risk [Line Items]
Accounts receivable	31.5
Net receivable amount	$ 27.3

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Pension Plans and Other Postretirement Benefits - Schedule of Net Periodic Cost (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019	Mar. 31, 2018
Pension Plans
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Service cost – benefits earned during the period	$ 4.9	$ 5.2	$ 9.7	$ 10.4
Interest cost on projected benefit obligation	7.0	6.9	14.1	13.8
Expected return on plan assets	(8.9)	(9.5)	(18.0)	(19.2)
Amortization of prior service cost (credit)	(0.3)	(0.2)	(0.6)	(0.5)
Amortization of actuarial (gain) loss	2.3	2.9	4.6	6.0
Loss on lump-sum settlements*		9.4		9.4
Subtotal	5.0	14.7	9.8	19.9
Regulatory adjustment	9.8	24.0	19.7	28.3
Net pension cost	14.8	38.7	29.5	48.2
Postretirement Plans
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Service cost – benefits earned during the period	1.8	2.4	3.7	4.7
Interest cost on projected benefit obligation	2.1	2.2	4.4	4.4
Expected return on plan assets	(3.9)	(3.5)	(8.0)	(7.0)
Amortization of prior service cost (credit)	(0.1)	(0.1)	(0.1)	(0.1)
Amortization of actuarial (gain) loss	(0.2)	0.2	(0.3)	0.4
Subtotal	(0.3)	1.2	(0.3)	2.4
Regulatory adjustment	2.6		5.0	0.1
Net pension cost	2.3	1.2	4.7	2.5
Spire Missouri | Pension Plans
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Service cost – benefits earned during the period	3.1	3.2	6.2	6.5
Interest cost on projected benefit obligation	4.9	4.9	9.9	9.8
Expected return on plan assets	(6.3)	(7.0)	(12.7)	(14.2)
Amortization of prior service cost (credit)	0.2	0.2	0.4	0.4
Amortization of actuarial (gain) loss	2.2	2.5	4.3	5.1
Loss on lump-sum settlements*		9.4		9.4
Subtotal	4.1	13.2	8.1	17.0
Regulatory adjustment	7.9	21.9	15.9	24.3
Net pension cost	12.0	35.1	24.0	41.3
Spire Missouri | Postretirement Plans
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Service cost – benefits earned during the period	1.7	2.3	3.4	4.5
Interest cost on projected benefit obligation	1.7	1.8	3.4	3.6
Expected return on plan assets	(2.7)	(2.5)	(5.5)	(4.9)
Amortization of prior service cost (credit)			0.1	0.1
Subtotal	0.5	1.8	1.1	3.7
Regulatory adjustment	3.0	0.5	5.9	1.0
Net pension cost	3.5	2.3	7.0	4.7
Spire Alabama | Pension Plans
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Service cost – benefits earned during the period	1.6	1.7	3.1	3.3
Interest cost on projected benefit obligation	1.5	1.4	3.0	2.8
Expected return on plan assets	(1.8)	(1.7)	(3.6)	(3.4)
Amortization of prior service cost (credit)	(0.5)	(0.4)	(0.9)	(0.9)
Amortization of actuarial (gain) loss	0.2	0.4	0.4	0.9
Subtotal	1.0	1.4	2.0	2.7
Regulatory adjustment	1.7	1.9	3.4	3.6
Net pension cost	2.7	3.3	5.4	6.3
Spire Alabama | Postretirement Plans
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Service cost – benefits earned during the period	0.1	0.1	0.2	0.1
Interest cost on projected benefit obligation	0.4	0.3	0.9	0.7
Expected return on plan assets	(1.2)	(1.0)	(2.4)	(2.0)
Amortization of prior service cost (credit)	(0.1)	(0.1)	(0.2)	(0.2)
Subtotal	(0.8)	(0.7)	(1.5)	(1.4)
Regulatory adjustment	(0.4)	(0.5)	(0.9)	(0.9)
Net pension cost	$ (1.2)	$ (1.2)	$ (2.4)	$ (2.3)

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Pension Plans and Other Postretirement Benefits - Additional Information (Details) - USD ($)	3 Months Ended	6 Months Ended
	Mar. 31, 2018	Mar. 31, 2019	Dec. 31, 2017
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Medical insurance available until age is reached after early retirement		65 years
Pension Plans
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Settlement benefits paid	$ 39,500,000
Settlement loss	$ 9,400,000
Pension Plans | Spire Missouri
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Discount rates	3.75%		4.00%
Employer contributions		$ 8,500,000
Anticipated contributions to pension plans for qualified trust		18,200,000
Other Pension Plan | Spire Missouri
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Discount rates	3.70%		4.00%
Postretirement Plans | Spire Missouri
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Employer contributions		0
Anticipated contributions to pension plans for qualified trust		0
Postretirement Plans | Spire Alabama
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Employer contributions		0
Anticipated contributions to pension plans for qualified trust		$ 0

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Information by Operating Segment - Additional Information (Details) - 6 months ended Mar. 31, 2019	reporting_unit	operating-segment
Segment Reporting [Abstract]
Number of reportable segments	2	2

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Information by Operating Segment - Schedule of Operating Segment Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019	Mar. 31, 2018	Sep. 30, 2018
Operating Segment Information [Abstract]
Total Operating Revenues	$ 803.5	$ 813.4	$ 1,405.5	$ 1,375.2
Gas Utility
Natural and propane gas	337.4	383.7	589.1	624.5
Other operation and maintenance expenses	109.5	135.3	212.0	234.3
Depreciation and amortization	44.4	41.1	88.1	81.4
Taxes, other than income taxes	57.4	58.0	96.6	94.7
Total Gas Utility Operating Expenses	548.7	618.1	985.8	1,034.9
Gas Marketing and other	45.3	45.2	105.1	86.2
Total Operating Expenses	594.0	663.3	1,090.9	1,121.1
Operating Income	209.5	150.1	314.6	254.1
Net Economic Earnings (Loss)	147.9	137.2	213.8	195.1
Total Assets	7,273.6	6,586.8	7,273.6	6,586.8	$ 6,843.6
Eliminations
Operating Segment Information [Abstract]
Total Operating Revenues	(3.1)	(3.1)	(7.5)	(5.7)
Gas Utility
Natural and propane gas	(29.3)	(19.5)	(69.4)	(42.1)
Other operation and maintenance expenses	(2.5)	(2.2)	(4.9)	(4.1)
Depreciation and amortization	0.0	0.0
Taxes, other than income taxes	0.0	0.0
Total Gas Utility Operating Expenses	(31.8)	(21.7)	(74.3)	(46.2)
Gas Marketing and other	28.7	18.6	66.8	40.5
Total Operating Expenses	(3.1)	(3.1)	(7.5)	(5.7)
Operating Income	0.0	0.0
Net Economic Earnings (Loss)	0.0	0.0
Total Assets	(1,340.0)	(1,318.0)	(1,340.0)	(1,318.0)	(1,566.4)
Gas Utility
Operating Segment Information [Abstract]
Total Operating Revenues	776.7	790.6	1,350.5	1,332.5
Gas Utility | Eliminations
Operating Segment Information [Abstract]
Total Operating Revenues	0.1	0.2	1.5	0.3
Gas Utility | Operating Segments
Operating Segment Information [Abstract]
Total Operating Revenues	776.8	790.8	1,352.0	1,332.8
Gas Utility
Natural and propane gas	366.7	403.2	658.5	666.6
Other operation and maintenance expenses	112.0	137.5	216.9	238.4
Depreciation and amortization	44.4	41.1	88.1	81.4
Taxes, other than income taxes	57.4	58.0	96.6	94.7
Total Gas Utility Operating Expenses	580.5	639.8	1,060.1	1,081.1
Gas Marketing and other	0.0	0.0
Total Operating Expenses	580.5	639.8	1,060.1	1,081.1
Operating Income	196.3	151.0	291.9	251.7
Net Economic Earnings (Loss)	146.7	131.7	213.1	191.2
Total Assets	5,850.1	5,484.3	5,850.1	5,484.3	5,606.7
Gas Marketing
Operating Segment Information [Abstract]
Total Operating Revenues	25.4	21.3	51.2	40.9
Gas Marketing | Eliminations
Operating Segment Information [Abstract]
Total Operating Revenues	0.1	0.0	0.1
Gas Marketing | Operating Segments
Operating Segment Information [Abstract]
Total Operating Revenues	25.5	21.3	51.3	40.9
Gas Utility
Natural and propane gas	0.0	0.0
Other operation and maintenance expenses	0.0	0.0
Depreciation and amortization	0.0	0.0
Taxes, other than income taxes	0.0	0.0
Total Gas Utility Operating Expenses	0.0	0.0
Gas Marketing and other	8.7	20.2	22.0	34.8
Total Operating Expenses	8.7	20.2	22.0	34.8
Operating Income	16.8	1.1	29.3	6.1
Net Economic Earnings (Loss)	6.2	10.2	14.5	13.8
Total Assets	366.7	208.6	366.7	208.6	295.3
Corporate, Non-Segment
Operating Segment Information [Abstract]
Total Operating Revenues	1.4	1.5	3.8	1.8
Corporate, Non-Segment | Eliminations
Operating Segment Information [Abstract]
Total Operating Revenues	2.9	2.9	5.9	5.4
Corporate, Non-Segment | Operating Segments
Operating Segment Information [Abstract]
Total Operating Revenues	4.3	4.4	9.7	7.2
Gas Utility
Natural and propane gas	0.0	0.0
Other operation and maintenance expenses	0.0	0.0
Depreciation and amortization	0.0	0.0
Taxes, other than income taxes	0.0	0.0
Total Gas Utility Operating Expenses	0.0	0.0
Gas Marketing and other	7.9	6.4	16.3	10.9
Total Operating Expenses	7.9	6.4	16.3	10.9
Operating Income	(3.6)	(2.0)	(6.6)	(3.7)
Net Economic Earnings (Loss)	(5.0)	(4.7)	(13.8)	(9.9)
Total Assets	$ 2,396.8	$ 2,211.9	$ 2,396.8	$ 2,211.9	$ 2,508.0

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Information by Operating Segment - Reconciliation of Consolidated Net Economic Earnings to Consolidated Net Income (Details) - USD ($) $ in Millions	3 Months Ended				6 Months Ended
	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2019	Mar. 31, 2018
Segment Reporting [Abstract]
Net Income (Loss)	$ 154.6	$ 67.3	$ 98.2	$ 116.0	$ 221.9	$ 214.2
Missouri regulatory adjustments	0.0		30.6		0.0	30.6
Unrealized (gain) loss on energy-related derivatives	(9.1)		11.8		(11.3)	12.6
Realized gain on economic hedges prior to the sale of the physical commodity	0.0		(0.2)		0.0	(0.3)
Acquisition, divestiture and restructuring activities	0.0		2.0		0.4	3.7
Income tax effect of adjustments	2.4		(11.1)		2.8	(11.7)
Effect of the Tax Cuts and Jobs Act	0.0		5.9		0.0	(54.0)
Net Economic Earnings	$ 147.9		$ 137.2		$ 213.8	$ 195.1

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Commitments and Contingencies - Additional Information - Commitments (Details) $ in Millions	6 Months Ended
	Mar. 31, 2019 USD ($)
Long-term Purchase Commitment [Line Items]
Minimum total payments required for natural gas contracts	$ 1,826.5
Spire Missouri
Long-term Purchase Commitment [Line Items]
Minimum total payments required for natural gas contracts	648.2
Spire Alabama
Long-term Purchase Commitment [Line Items]
Minimum total payments required for natural gas contracts	$ 385.8

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Commitments and Contingencies - Additional Information - Contingencies (Details)		6 Months Ended
	Dec. 17, 2013 fatality	Mar. 31, 2019 site lawsuit plaintiff	Sep. 30, 2013 site
Site Contingency [Line Items]
Number of lawsuits | lawsuit		14
Number of plaintiffs | plaintiff		1,600
Pending Litigation
Site Contingency [Line Items]
Number of lawsuits pending | plaintiff		13
Spire Missouri East
Site Contingency [Line Items]
Number of former manufactured gas plant (MGP) sites in Missouri		3
Number of sites enrolled in Brownfields/Voluntary clean up program		2
Spire Missouri East | Previous Ownership
Site Contingency [Line Items]
Number of former manufactured gas plant (MGP)			19
Spire Missouri West | Previous Ownership
Site Contingency [Line Items]
Number of former manufactured gas plant (MGP)		7
Spire Alabama
Site Contingency [Line Items]
Number of former manufactured gas plant (MGP)		9
Number of former manufactured gas distribution		5
Number of incident fatalities | fatality	1
Spire Alabama | Current Ownership
Site Contingency [Line Items]
Number of former manufactured gas plant (MGP)		4
Number of former manufactured gas distribution		1

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Income Taxes - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Mar. 31, 2019	Mar. 31, 2019
Spire Missouri
Income Taxes [Line Items]
Excess accumulated deferred taxes returned	$ 2.1	$ 4.2