UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

Form 10-Q


☒			QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended March 31, ~~2023~~2024


☐			TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

Commission

File Number

Exact name of registrant as specified in its charter and
principal office address and telephone number

State of
Incorporation

I.R.S.
Employer Identification No.

001-37976

Southwest Gas Holdings, Inc.

Delaware

81-3881866

8360 S. Durango Drive

Post Office Box 98510

Las Vegas,

Nevada

89193-8510

(702)

876-7237

1-7850

Southwest Gas Corporation

California

88-0085720

8360 S. Durango Drive

Post Office Box 98510

Las Vegas,

Nevada

89193-8510

(702)

876-7237

Securities registered pursuant to Section 12(b) of the Act:

Title of each class

Trading Symbol

Name of each exchange on which registered

Southwest Gas Holdings, Inc. Common Stock, $1 Par Value

SWX

New York Stock Exchange

Preferred Stock Purchase Rights

N/A

New York Stock Exchange

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 each registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ 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 (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that each registrant was required to submit such files). Yes ☒ No ☐

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

Southwest Gas Holdings, Inc.:

Large accelerated filer

☒

Accelerated filer

☐

Non-accelerated filer

☐

Smaller reporting company

☐

Emerging growth company

☐

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. ☐

Southwest Gas Corporation:

Large accelerated filer

☐

Accelerated filer

☐

Non-accelerated filer

☒

Smaller reporting company

☐

Emerging growth company

☐

Indicate by check mark whether each registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☒

Indicate the number of shares outstanding of each of the issuer’s classes of common stock as of the latest practicable date.

Southwest Gas Holdings, Inc. Common Stock, $1 Par Value, ~~71,336,035~~71,669,140 shares as of April ~~28, 2023.~~26, 2024.

All of the outstanding shares of common stock ($1 par value) of Southwest Gas Corporation were held by Southwest Gas Holdings, Inc. as of April ~~28, 2023.~~26, 2024.

SOUTHWEST GAS CORPORATION MEETS THE CONDITIONS SET FORTH IN GENERAL INSTRUCTION (H)(1)(a) and (b) OF FORM 10-Q AND IS THEREFORE FILING THIS REPORT WITH THE REDUCED DISCLOSURE FORMAT AS PERMITTED BY GENERAL INSTRUCTION H(2).


SOUTHWEST GAS HOLDINGS, INC.						Form 10-Q
SOUTHWEST GAS CORPORATION						March 31, ~~2023~~2024

FILING FORMAT

This quarterly report on Form 10-Q is a combined report being filed by two separate registrants: Southwest Gas Holdings, Inc. and Southwest Gas Corporation. Except where the content clearly indicates otherwise, any reference in the report to “we,” “us” or “our” is to the holding company or the consolidated entity of Southwest Gas Holdings, Inc. and all of its consolidated subsidiaries, including Southwest Gas Corporation, which is a distinct registrant that is a wholly owned subsidiary of Southwest Gas Holdings, Inc. Information contained herein relating to any individual company is filed by such company on its own behalf. Each company makes representations only as to itself and makes no other representation whatsoever as to any other company.

Part I—Financial information in this Quarterly Report on Form 10-Q includes separate financial statements (i.e., balance sheets, statements of income, statements of comprehensive income, statements of cash flows, and statements of equity) for Southwest Gas Holdings, Inc. and Southwest Gas Corporation, in that order. The Notes to the Condensed Consolidated Financial Statements are presented on a combined basis for both entities. All Items other than Part I – Item 1 are combined for the reporting companies.


			2


SOUTHWEST GAS HOLDINGS, INC.						Form 10-Q
SOUTHWEST GAS CORPORATION						March 31, ~~2023~~2024

PART I - FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS

SOUTHWEST GAS HOLDINGS, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED BALANCE SHEETS

(Thousands of dollars, except par value)

(Unaudited)


			March 31, 2023		December 31, 2022
		March 31, 2024					March 31, 2024	December 31, 2023
ASSETS	ASSETS
Regulated operations plant:	Regulated operations plant:
Regulated operations plant:
Regulated operations plant:
Gas plant
Gas plant
Gas plant	Gas plant		$	9,583,630	$	9,453,907
Less: accumulated depreciation	Less: accumulated depreciation		(2,712,093)		(2,674,157)
Construction work in progress	Construction work in progress		250,892		244,750
Net regulated operations plant	Net regulated operations plant		7,122,429		7,024,500
Other property and investments, net	Other property and investments, net		1,250,327		1,281,172
Current assets:	Current assets:
Cash and cash equivalents
Cash and cash equivalents
Cash and cash equivalents	Cash and cash equivalents		82,085		123,078
Accounts receivable, net of allowances	Accounts receivable, net of allowances		903,262		866,246
Accrued utility revenue	Accrued utility revenue		56,900		88,100
Income taxes receivable, net	Income taxes receivable, net		8,136		8,738
Deferred purchased gas costs	Deferred purchased gas costs		970,339		450,120
Prepaid and other current assets	Prepaid and other current assets		210,309		433,850
Current assets held for sale	Current assets held for sale		26,993		1,737,530
Total current assets	Total current assets		2,258,024		3,707,662
Noncurrent assets:	Noncurrent assets:
Goodwill	Goodwill		787,334		787,250
Goodwill
Goodwill
Deferred income taxes	Deferred income taxes		115		82
Deferred charges and other assets	Deferred charges and other assets		391,944		395,948
Total noncurrent assets	Total noncurrent assets		1,179,393		1,183,280
Total assets	Total assets		$	11,810,173	$	13,196,614
CAPITALIZATION AND LIABILITIES	CAPITALIZATION AND LIABILITIES
Capitalization:	Capitalization:
Common stock, $1 par (authorized - 120,000,000 shares; issued and outstanding - 71,330,991 and 67,119,143 shares)			$	72,961	$	68,749
Capitalization:
Capitalization:
Common stock, $1 par (authorized - 120,000,000 shares; issued and outstanding - 71,665,592 and 71,563,750 shares)
Common stock, $1 par (authorized - 120,000,000 shares; issued and outstanding - 71,665,592 and 71,563,750 shares)
Common stock, $1 par (authorized - 120,000,000 shares; issued and outstanding - 71,665,592 and 71,563,750 shares)
Additional paid-in capital	Additional paid-in capital		2,524,631		2,287,183
Accumulated other comprehensive loss, net	Accumulated other comprehensive loss, net		(43,949)		(44,242)
Retained earnings	Retained earnings		742,513		747,069
Total equity	Total equity		3,296,156		3,058,759
Redeemable noncontrolling interests	Redeemable noncontrolling interests		127,026		159,349
Long-term debt, less current maturities	Long-term debt, less current maturities		4,577,600		4,403,299
Total capitalization	Total capitalization		8,000,782		7,621,407
Current liabilities:	Current liabilities:
Current maturities of long-term debt	Current maturities of long-term debt		41,907		44,557
Current maturities of long-term debt
Current maturities of long-term debt
Short-term debt	Short-term debt		467,500		1,542,806
Accounts payable	Accounts payable		310,748		662,090
Customer deposits	Customer deposits		50,350		51,182
Income taxes payable, net	Income taxes payable, net		739		2,690
Accrued general taxes	Accrued general taxes		101,579		67,094
Accrued interest	Accrued interest		45,641		38,556

Other current liabilities	Other current liabilities		592,022		369,743
Current liabilities held for sale			—		644,245
Total current liabilities	Total current liabilities		1,610,486		3,422,963
Deferred income taxes and other credits:	Deferred income taxes and other credits:
Deferred income taxes and investment tax credits, net
Deferred income taxes and investment tax credits, net
Deferred income taxes and investment tax credits, net	Deferred income taxes and investment tax credits, net		733,199		682,067
Accumulated removal costs	Accumulated removal costs		450,000		445,000
Other deferred credits and other long-term liabilities	Other deferred credits and other long-term liabilities		1,015,706		1,025,177
Total deferred income taxes and other credits	Total deferred income taxes and other credits		2,198,905		2,152,244
Total capitalization and liabilities	Total capitalization and liabilities		$	11,810,173	$	13,196,614

The accompanying notes are an integral part of these statements.


			3


SOUTHWEST GAS HOLDINGS, INC.						Form 10-Q
SOUTHWEST GAS CORPORATION						March 31, ~~2023~~2024

SOUTHWEST GAS HOLDINGS, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF INCOME

(In thousands, except per share amounts)

(Unaudited)


			Three Months Ended March 31,				Twelve Months Ended March 31,
		Three Months Ended March 31,											Three Months Ended March 31,
			2023		2022		2023		2022		2024	2023
Operating revenues:	Operating revenues:
Regulated operations revenues
Regulated operations revenues
Regulated operations revenues	Regulated operations revenues		$	950,011	$	743,532	$	2,406,161	$	1,743,390
Utility infrastructure services revenues	Utility infrastructure services revenues		653,293		523,877		2,889,743		2,318,563
Total operating revenues	Total operating revenues		1,603,304		1,267,409		5,295,904		4,061,953
Operating expenses:	Operating expenses:
Net cost of gas sold
Net cost of gas sold
Net cost of gas sold	Net cost of gas sold		507,537		298,918		1,007,679		573,804
Operations and maintenance	Operations and maintenance		148,908		149,303		636,371		515,759
Depreciation and amortization	Depreciation and amortization		112,520		122,646		460,329		400,245
Taxes other than income taxes	Taxes other than income taxes		24,230		24,816		92,797		84,472
Utility infrastructure services expenses	Utility infrastructure services expenses		603,680		503,232		2,629,766		2,123,085
Goodwill impairment and loss on sale	Goodwill impairment and loss on sale		71,230		—		526,655		—
Total operating expenses	Total operating expenses		1,468,105		1,098,915		5,353,597		3,697,365
Operating income (loss)			135,199		168,494		(57,693)		364,588
Operating income
Other income and (expenses):	Other income and (expenses):
Net interest deductions	Net interest deductions		(77,334)		(48,363)		(271,721)		(143,597)
Other income (deductions)			18,460		1,244		11,027		(2,703)
Total other income and (expenses)			(58,874)		(47,119)		(260,694)		(146,300)
Income (loss) before income taxes			76,325		121,375		(318,387)		218,288
Income tax expense (benefit)			28,675		24,125		(71,103)		32,681
Net income (loss)			47,650		97,250		(247,284)		185,607
Net income attributable to noncontrolling interests			1,739		1,072		6,273		5,943
Net income (loss) attributable to Southwest Gas Holdings, Inc.			$	45,911	$	96,178	$	(253,557)	$	179,664
Earnings (loss) per share:
Net interest deductions
Net interest deductions
Other income
Total other (expenses)
Income before income taxes
Income tax expense
Net income
Net income (loss) attributable to noncontrolling interests
Net income attributable to Southwest Gas Holdings, Inc.
Earnings per share:
Basic
Basic
Basic	Basic		$	0.67	$	1.58	$	(3.76)	$	3.00
Diluted	Diluted		$	0.67	$	1.58	$	(3.76)	$	2.99
Weighted average shares:	Weighted average shares:
Basic	Basic		68,265		60,737		67,413		59,919
Basic
Basic
Diluted	Diluted		68,419		60,854		67,413		60,044

The accompanying notes are an integral part of these statements.


			4


SOUTHWEST GAS HOLDINGS, INC.						Form 10-Q
SOUTHWEST GAS CORPORATION						March 31, ~~2023~~2024

SOUTHWEST GAS HOLDINGS, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(Thousands of dollars)

(Unaudited)

Three Months Ended
March 31, Twelve Months Ended
March 31,
2023 2022 2023 2022
Net income (loss) $ 47,650 $ 97,250 $ (247,284) $ 185,607
Other comprehensive income (loss), net of tax
Defined benefit pension plans:
Net actuarial gain (loss) — — 3,099 44,974
Amortization of prior service cost 33 33 133 580
Amortization of net actuarial loss 253 6,616 20,098 32,036
Regulatory adjustment (90) (5,523) (16,024) (65,273)
Net defined benefit pension plans 196 1,126 7,306 12,317
Forward-starting interest rate swaps (“FSIRS”):
Amounts reclassified into net income — 416 — 1,655
Net forward-starting interest rate swaps — 416 — 1,655
Foreign currency translation adjustments 97 1,247 (7,283) 444
Total other comprehensive income, net of tax 293 2,789 23 14,416
Comprehensive income (loss) 47,943 100,039 (247,261) 200,023
Comprehensive income attributable to noncontrolling interests 1,739 1,072 6,273 5,943
Comprehensive income (loss) attributable to Southwest Gas Holdings, Inc. $ 46,204 $ 98,967 $ (253,534) $ 194,080


	Three Months Ended March 31,
	2024		2023
Net income	$	87,562	$	47,650
Other comprehensive income, net of tax
Defined benefit pension plans:

Amortization of prior service cost	33		33
Amortization of net actuarial loss	1,451		253
Regulatory adjustment	(1,100)		(90)
Net defined benefit pension plans	384		196
Foreign currency translation adjustments	(2,819)		97
Total other comprehensive income (loss), net of tax	(2,435)		293
Comprehensive income	85,127		47,943
Comprehensive income (loss) attributable to noncontrolling interests	(175)		1,739
Comprehensive income attributable to Southwest Gas Holdings, Inc.	$	85,302	$	46,204

The accompanying notes are an integral part of these statements.


			5


SOUTHWEST GAS HOLDINGS, INC.						Form 10-Q
SOUTHWEST GAS CORPORATION						March 31, ~~2023~~2024

SOUTHWEST GAS HOLDINGS, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(Thousands of dollars)

(Unaudited)


			Three Months Ended March 31,				Twelve Months Ended March 31,
		Three Months Ended March 31,											Three Months Ended March 31,
			2023		2022		2023		2022		2024	2023
CASH FLOW FROM OPERATING ACTIVITIES:	CASH FLOW FROM OPERATING ACTIVITIES:
Net income (loss)			$	47,650	$	97,250	$	(247,284)	$	185,607
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Net income
Net income
Net income
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization
Depreciation and amortization
Depreciation and amortization	Depreciation and amortization		112,520		122,646		460,329		400,245
Impairment of assets and other charges	Impairment of assets and other charges		71,230		—		526,655		—
Deferred income taxes	Deferred income taxes		36,712		32,346		(67,682)		70,232
Gains on sale of property and equipment	Gains on sale of property and equipment		(661)		(1,916)		(6,610)		(7,313)
Changes in undistributed stock compensation	Changes in undistributed stock compensation		3,436		4,180		8,702		9,816
Equity AFUDC	Equity AFUDC		(82)		(258)		(289)		723
Changes in current assets and liabilities:	Changes in current assets and liabilities:
Accounts receivable, net of allowances
Accounts receivable, net of allowances
Accounts receivable, net of allowances	Accounts receivable, net of allowances		(40,185)		(44,971)		(188,989)		(139,417)
Accrued utility revenue	Accrued utility revenue		31,200		32,900		(4,900)		(1,500)
Deferred purchased gas costs	Deferred purchased gas costs		(535,224)		(82,248)		(600,191)		(134,507)
Accounts payable	Accounts payable		(305,272)		(82,952)		71,589		8,621
Accrued taxes	Accrued taxes		34,950		33,964		18,915		(7,397)
Other current assets and liabilities	Other current assets and liabilities		371,035		79,680		83,502		(4,274)
Changes in deferred charges and other assets	Changes in deferred charges and other assets		(1,565)		(297)		15,618		(3,459)
Changes in other liabilities and deferred credits	Changes in other liabilities and deferred credits		(11,486)		(3,704)		(34,267)		(26,917)
Net cash provided by (used in) operating activities	Net cash provided by (used in) operating activities		(185,742)		186,620		35,098		350,460
CASH FLOW FROM INVESTING ACTIVITIES:	CASH FLOW FROM INVESTING ACTIVITIES:
Construction expenditures and property additions	Construction expenditures and property additions		(219,124)		(162,796)		(915,749)		(725,713)
Acquisition of businesses, net of cash acquired			—		—		(18,809)		(2,354,260)
Construction expenditures and property additions
Construction expenditures and property additions
Proceeds from the sale of business, net of cash sold	Proceeds from the sale of business, net of cash sold		1,058,272		—		1,058,272		—
Proceeds from the sale of property
Changes in customer advances	Changes in customer advances		(6,608)		7,693		7,205		19,381
Other	Other		3,125		893		20,054		15,586
Net cash provided by (used in) investing activities	Net cash provided by (used in) investing activities		835,665		(154,210)		150,973		(3,045,006)
CASH FLOW FROM FINANCING ACTIVITIES:	CASH FLOW FROM FINANCING ACTIVITIES:
Issuance of common stock, net	Issuance of common stock, net		239,337		453,495		247,670		618,146
Issuance of common stock, net
Issuance of common stock, net
Centuri distribution to redeemable noncontrolling interest	Centuri distribution to redeemable noncontrolling interest		—		(39,649)		—		(39,649)
Dividends paid	Dividends paid		(41,631)		(35,970)		(166,224)		(141,573)
Issuance of long-term debt, net	Issuance of long-term debt, net		305,896		709,927		663,774		2,359,964
Retirement of long-term debt	Retirement of long-term debt		(84,224)		(143,453)		(440,685)		(574,889)
Change in credit facility and commercial paper			(50,000)		(130,000)		—		(150,000)
Change in short-term debt			(1,527,746)		(435,000)		(1,458,939)		(686,000)
Change in short-term portion of credit facility
Change in long-term credit facility and commercial paper
Issuance of short-term debt	Issuance of short-term debt		450,000		—		450,000		1,850,000
Repayment of short-term debt

Withholding remittance - share-based compensation
Withholding remittance - share-based compensation
Withholding remittance - share-based compensation	Withholding remittance - share-based compensation		(1,506)		(1,978)		(2,190)		(2,000)
Other, including principal payments on finance leases	Other, including principal payments on finance leases		(4,949)		(7,898)		(21,223)		(7,274)
Net cash provided by (used in) financing activities	Net cash provided by (used in) financing activities		(714,823)		369,474		(727,817)		3,226,725
Effects of currency translation on cash and cash equivalents	Effects of currency translation on cash and cash equivalents		104		85		(835)		142
Change in cash and cash equivalents	Change in cash and cash equivalents		(64,796)		401,969		(542,581)		532,321
Cash and cash equivalents included in current assets held for sale at beginning of period	Cash and cash equivalents included in current assets held for sale at beginning of period		23,803		—		—		—
Cash and cash equivalents at beginning of period	Cash and cash equivalents at beginning of period		123,078		222,697		624,666		92,345
Cash and cash equivalents at end of period	Cash and cash equivalents at end of period		$	82,085	$	624,666	$	82,085	$	624,666
SUPPLEMENTAL INFORMATION:	SUPPLEMENTAL INFORMATION:
Interest paid, net of amounts capitalized	Interest paid, net of amounts capitalized		$	68,018	$	35,262	$	252,581	$	131,311
Interest paid, net of amounts capitalized
Interest paid, net of amounts capitalized
Income taxes paid, net	Income taxes paid, net		$	2,381	$	1,408	$	12,974	$	3,965

The accompanying notes are an integral part of these statements.


			6


SOUTHWEST GAS HOLDINGS, INC.						Form 10-Q
SOUTHWEST GAS CORPORATION						March 31, ~~2023~~2024

SOUTHWEST GAS HOLDINGS, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF EQUITY

(In thousands, except per share amounts)

(Unaudited)


						Three Months Ended March 31,
						2023		2022
					Three Months Ended March 31,						Three Months Ended March 31,
					2024					2024		2023
Common stock shares	Common stock shares
		Beginning balances				67,119		60,422
				Common stock issuances		4,212		6,427
		Ending balances				71,331		66,849
		Beginning balances
		Beginning balances
		Beginning balances
			Common stock issuances
	Ending balances
Common stock amount	Common stock amount
		Beginning balances				$	68,749	$	62,052
				Common stock issuances		4,212		6,427
		Ending balances				72,961		68,479
		Beginning balances
		Beginning balances
		Beginning balances
			Common stock issuances
	Ending balances
Additional paid-in capital	Additional paid-in capital
		Beginning balances				2,287,183		1,824,216
				Common stock issuances		237,448		449,621
		Ending balances				2,524,631		2,273,837
		Beginning balances
		Beginning balances
		Beginning balances
			Common stock issuances
			Promissory notes in association with redeemable noncontrolling interest
	Ending balances
Accumulated other comprehensive loss	Accumulated other comprehensive loss
		Beginning balances				(44,242)		(46,761)
				Foreign currency exchange translation adjustment		97		1,247
				Net actuarial gain arising during period, less amortization of unamortized benefit plan cost, net of tax		196		1,126
				FSIRS amounts reclassified to net income, net of tax		—		416
		Ending balances				(43,949)		(43,972)
		Beginning balances
		Beginning balances
		Beginning balances
			Foreign currency exchange translation adjustment
			Net actuarial gain arising during period, less amortization of unamortized benefit plan cost, net of tax
	Ending balances
Retained earnings	Retained earnings
		Beginning balances				747,069		1,114,313
				Net income		45,911		96,178
				Dividends declared		(44,635)		(41,909)
				Redemption value adjustments		(5,832)		22,156
		Ending balances				742,513		1,190,738
		Beginning balances
		Beginning balances
		Beginning balances
			Net income
			Dividends declared
			Redemption value adjustments
	Ending balances
Total equity ending balances	Total equity ending balances					$	3,296,156	$	3,489,082
Dividends declared per common share	Dividends declared per common share					$	0.62	$	0.62

The accompanying notes are an integral part of these statements.


			7


SOUTHWEST GAS HOLDINGS, INC.						Form 10-Q
SOUTHWEST GAS CORPORATION						March 31, ~~2023~~2024

SOUTHWEST GAS CORPORATION AND SUBSIDIARIES

CONDENSED CONSOLIDATED BALANCE SHEETS

(Thousands of dollars)

(Unaudited)


			March 31, 2023		December 31, 2022
		March 31, 2024					March 31, 2024	December 31, 2023
ASSETS	ASSETS
Regulated operations plant:	Regulated operations plant:
Regulated operations plant:
Regulated operations plant:
Gas plant
Gas plant
Gas plant	Gas plant		$	9,583,630	$	9,453,907
Less: accumulated depreciation	Less: accumulated depreciation		(2,712,093)		(2,674,157)
Construction work in progress	Construction work in progress		250,892		244,750
Net regulated operations plant	Net regulated operations plant		7,122,429		7,024,500
Other property and investments, net	Other property and investments, net		144,586		169,397
Current assets:	Current assets:
Cash and cash equivalents	Cash and cash equivalents		63,099		51,823
Cash and cash equivalents
Cash and cash equivalents
Accounts receivable, net of allowance	Accounts receivable, net of allowance		300,897		234,081
Accrued utility revenue	Accrued utility revenue		56,900		88,100
Income taxes receivable, net	Income taxes receivable, net		115		103
Deferred purchased gas costs	Deferred purchased gas costs		970,339		450,120
Receivable from parent			—		2,130

Prepaid and other current assets
Prepaid and other current assets
Prepaid and other current assets	Prepaid and other current assets		183,455		401,789
Current assets held for sale	Current assets held for sale		26,993		—
Total current assets	Total current assets		1,601,798		1,228,146
Noncurrent assets:	Noncurrent assets:
Goodwill
Goodwill
Goodwill	Goodwill		11,155		11,155
Deferred charges and other assets	Deferred charges and other assets		369,495		370,483
Total noncurrent assets	Total noncurrent assets		380,650		381,638
Total assets	Total assets		$	9,249,463	$	8,803,681
CAPITALIZATION AND LIABILITIES	CAPITALIZATION AND LIABILITIES
Capitalization:	Capitalization:
Capitalization:
Capitalization:
Common stock
Common stock
Common stock	Common stock		$	49,112	$	49,112
Additional paid-in capital	Additional paid-in capital		1,624,919		1,622,969
Accumulated other comprehensive loss, net	Accumulated other comprehensive loss, net		(38,065)		(38,261)
Retained earnings	Retained earnings		1,030,164		935,355
Total equity	Total equity		2,666,130		2,569,175
Long-term debt, less current maturities	Long-term debt, less current maturities		3,497,977		3,251,296
Total capitalization	Total capitalization		6,164,107		5,820,471
Current liabilities:	Current liabilities:

Short-term debt			450,000		225,000
Accounts payable

Accounts payable

Accounts payable	Accounts payable		176,682		497,046
Customer deposits	Customer deposits		50,350		51,182

Accrued general taxes	Accrued general taxes		101,579		67,094
Accrued general taxes
Accrued general taxes
Accrued interest	Accrued interest		38,489		29,569

Payable to parent	Payable to parent		993		—
Other current liabilities	Other current liabilities		281,597		150,817
Total current liabilities	Total current liabilities		1,099,690		1,020,708
Deferred income taxes and other credits:	Deferred income taxes and other credits:
Deferred income taxes and investment tax credits, net	Deferred income taxes and investment tax credits, net		723,205		683,948
Deferred income taxes and investment tax credits, net
Deferred income taxes and investment tax credits, net
Accumulated removal costs	Accumulated removal costs		450,000		445,000
Other deferred credits and other long-term liabilities	Other deferred credits and other long-term liabilities		812,461		833,554
Total deferred income taxes and other credits	Total deferred income taxes and other credits		1,985,666		1,962,502
Total capitalization and liabilities	Total capitalization and liabilities		$	9,249,463	$	8,803,681

The accompanying notes are an integral part of these statements.


			8


SOUTHWEST GAS HOLDINGS, INC.						Form 10-Q
SOUTHWEST GAS CORPORATION						March 31, ~~2023~~2024

SOUTHWEST GAS CORPORATION AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF INCOME

(Thousands of dollars)

(Unaudited)


			Three Months Ended March 31,				Twelve Months Ended March 31,
		Three Months Ended March 31,											Three Months Ended March 31,
			2023		2022		2023		2022		2024	2023
Regulated operations revenues	Regulated operations revenues		$	914,879	$	676,539	$	2,173,409	$	1,676,397
Operating expenses:	Operating expenses:
Net cost of gas sold
Net cost of gas sold
Net cost of gas sold	Net cost of gas sold		501,169		297,121		993,264		572,007
Operations and maintenance	Operations and maintenance		131,188		119,636		503,480		452,051
Depreciation and amortization	Depreciation and amortization		74,650		72,114		265,579		256,814
Taxes other than income taxes	Taxes other than income taxes		22,740		21,652		84,285		81,308
Total operating expenses	Total operating expenses		729,747		510,523		1,846,608		1,362,180
Operating income	Operating income		185,132		166,016		326,801		314,217
Other income and (expenses):	Other income and (expenses):
Net interest deductions	Net interest deductions		(38,622)		(26,610)		(127,892)		(102,004)
Other income (deductions)			18,443		1,315		10,244		(3,794)
Total other income and (expenses)			(20,179)		(25,295)		(117,648)		(105,798)
Net interest deductions
Net interest deductions
Other income
Total other (expenses)
Income before income taxes	Income before income taxes		164,953		140,721		209,153		208,419
Income tax expense	Income tax expense		30,257		28,926		31,872		28,204
Net income	Net income		$	134,696	$	111,795	$	177,281	$	180,215

The accompanying notes are an integral part of these statements.


			9


SOUTHWEST GAS HOLDINGS, INC.						Form 10-Q
SOUTHWEST GAS CORPORATION						March 31, ~~2023~~2024

SOUTHWEST GAS CORPORATION AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(Thousands of dollars)

(Unaudited)


			Three Months Ended March 31,				Twelve Months Ended March 31,
		Three Months Ended March 31,											Three Months Ended March 31,
			2023		2022		2023		2022		2024	2023
Net income	Net income		$	134,696	$	111,795	$	177,281	$	180,215
Other comprehensive income, net of tax	Other comprehensive income, net of tax
Defined benefit pension plans:	Defined benefit pension plans:
Net actuarial gain (loss)			—		—		3,099		44,974
Defined benefit pension plans:
Defined benefit pension plans:

Amortization of prior service cost	Amortization of prior service cost		33		33		133		580

Amortization of prior service cost

Amortization of prior service cost
Amortization of net actuarial loss	Amortization of net actuarial loss		253		6,616		20,098		32,036
Regulatory adjustment	Regulatory adjustment		(90)		(5,523)		(16,024)		(65,273)
Net defined benefit pension plans	Net defined benefit pension plans		196		1,126		7,306		12,317
Forward-starting interest rate swaps (“FSIRS”):
Amounts reclassified into net income (loss)			—		416		—		1,655
Net forward-starting interest rate swaps			—		416		—		1,655
Total other comprehensive income, net of tax	Total other comprehensive income, net of tax		196		1,542		7,306		13,972
Comprehensive income	Comprehensive income		$	134,892	$	113,337	$	184,587	$	194,187

The accompanying notes are an integral part of these statements.


			10


SOUTHWEST GAS HOLDINGS, INC.						Form 10-Q
SOUTHWEST GAS CORPORATION						March 31, ~~2023~~2024

SOUTHWEST GAS CORPORATION AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(Thousands of dollars)

(Unaudited)


		Three Months Ended March 31,
		Three Months Ended March 31,
		Three Months Ended March 31,

		Three Months Ended March 31,				Twelve Months Ended March 31,
		2023		2022		2023		2022
CASH FLOW FROM OPERATING ACTIVITIES:	CASH FLOW FROM OPERATING ACTIVITIES:
CASH FLOW FROM OPERATING ACTIVITIES:
CASH FLOW FROM OPERATING ACTIVITIES:
Net income
Net income
Net income	Net income	$	134,696	$	111,795	$	177,281	$	180,215
Adjustments to reconcile net income to net cash provided by (used in) operating activities:	Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization
Depreciation and amortization
Depreciation and amortization	Depreciation and amortization	74,650		72,114		265,579		256,814
Deferred income taxes	Deferred income taxes	39,194		34,560		47,021		72,845
Gain on sale of property		—		(1,503)		—		(1,503)
Deferred income taxes
Deferred income taxes
Changes in undistributed stock compensation
Changes in undistributed stock compensation
Changes in undistributed stock compensation	Changes in undistributed stock compensation	2,955		3,239		5,492		6,723
Equity AFUDC	Equity AFUDC	—		(76)		76		905
Equity AFUDC
Equity AFUDC
Changes in current assets and liabilities:
Changes in current assets and liabilities:
Changes in current assets and liabilities:	Changes in current assets and liabilities:
Accounts receivable, net of allowance	Accounts receivable, net of allowance	(66,816)		(55,219)		(76,011)		(50,394)
Accounts receivable, net of allowance
Accounts receivable, net of allowance
Accrued utility revenue
Accrued utility revenue
Accrued utility revenue	Accrued utility revenue	31,200		32,900		(4,900)		(1,500)
Deferred purchased gas costs	Deferred purchased gas costs	(520,219)		(76,809)		(602,385)		(129,068)
Deferred purchased gas costs
Deferred purchased gas costs
Accounts payable
Accounts payable
Accounts payable	Accounts payable	(286,164)		(67,584)		24,696		23,256
Accrued taxes	Accrued taxes	34,473		30,835		25,392		(3,263)
Accrued taxes
Accrued taxes
Other current assets and liabilities
Other current assets and liabilities
Other current assets and liabilities	Other current assets and liabilities	351,252		90,558		71,957		(20,731)
Changes in deferred charges and other assets	Changes in deferred charges and other assets	(12,891)		(6,439)		(8,146)		(21,647)
Changes in deferred charges and other assets
Changes in deferred charges and other assets
Changes in other liabilities and deferred credits
Changes in other liabilities and deferred credits
Changes in other liabilities and deferred credits	Changes in other liabilities and deferred credits	(10,942)		(4,033)		(34,599)		(27,637)
Net cash provided by (used in) operating activities	Net cash provided by (used in) operating activities	(228,612)		164,338		(108,547)		285,015
Net cash provided by (used in) operating activities
Net cash provided by (used in) operating activities
CASH FLOW FROM INVESTING ACTIVITIES:
CASH FLOW FROM INVESTING ACTIVITIES:
CASH FLOW FROM INVESTING ACTIVITIES:	CASH FLOW FROM INVESTING ACTIVITIES:
Construction expenditures and property additions	Construction expenditures and property additions	(192,097)		(141,123)		(734,105)		(614,562)
Construction expenditures and property additions
Construction expenditures and property additions
Proceeds from the sale of property
Proceeds from the sale of property
Proceeds from the sale of property
Changes in customer advances
Changes in customer advances
Changes in customer advances	Changes in customer advances	(6,608)		7,693		7,205		19,381
Other	Other	119		(918)		7,954		(829)

Other
Other
Net cash used in investing activities
Net cash used in investing activities
Net cash used in investing activities	Net cash used in investing activities	(198,586)		(134,348)		(718,946)		(596,010)
CASH FLOW FROM FINANCING ACTIVITIES:	CASH FLOW FROM FINANCING ACTIVITIES:
Contributions from parent		—		—		—		156,599
CASH FLOW FROM FINANCING ACTIVITIES:
CASH FLOW FROM FINANCING ACTIVITIES:
Dividends paid
Dividends paid
Dividends paid	Dividends paid	(32,000)		(29,200)		(125,000)		(114,600)
Issuance of long-term debt, net	Issuance of long-term debt, net	297,759		593,862		595,560		891,180
Retirement of long-term debt		—		(25,000)		(250,000)		(25,000)
Change in credit facility and commercial paper		(50,000)		(130,000)		—		(150,000)
Change in short-term debt		(225,000)		—		(250,000)		(17,000)
Issuance of long-term debt, net
Issuance of long-term debt, net

Change in long-term credit facility and commercial paper

Change in long-term credit facility and commercial paper

Change in long-term credit facility and commercial paper
Issuance of short-term debt	Issuance of short-term debt	450,000		—		450,000		—
Issuance of short-term debt
Issuance of short-term debt
Repayment of short-term debt
Repayment of short-term debt
Repayment of short-term debt

Withholding remittance - share-based compensation

Withholding remittance - share-based compensation

Withholding remittance - share-based compensation	Withholding remittance - share-based compensation	(1,292)		(1,978)		(1,883)		(1,999)
Other	Other	(993)		(489)		(3,961)		(2,104)
Net cash provided by financing activities		438,474		407,195		414,716		737,076
Other
Other
Net cash provided by (used in) financing activities
Net cash provided by (used in) financing activities
Net cash provided by (used in) financing activities

Change in cash and cash equivalents

Change in cash and cash equivalents

Change in cash and cash equivalents	Change in cash and cash equivalents	11,276		437,185		(412,777)		426,081
Cash and cash equivalents at beginning of period	Cash and cash equivalents at beginning of period	51,823		38,691		475,876		49,795
Cash and cash equivalents at beginning of period
Cash and cash equivalents at beginning of period
Cash and cash equivalents at end of period
Cash and cash equivalents at end of period
Cash and cash equivalents at end of period	Cash and cash equivalents at end of period	$	63,099	$	475,876	$	63,099	$	475,876
SUPPLEMENTAL INFORMATION:	SUPPLEMENTAL INFORMATION:
SUPPLEMENTAL INFORMATION:
SUPPLEMENTAL INFORMATION:
Interest paid, net of amounts capitalized	Interest paid, net of amounts capitalized	$	29,007	$	15,757	$	121,230	$	99,045
Income taxes paid (received), net		$	—	$	—	$	5	$	(13,529)
Interest paid, net of amounts capitalized
Interest paid, net of amounts capitalized
Income taxes paid, net
Income taxes paid, net
Income taxes paid, net

The accompanying notes are an integral part of these statements.


			11


SOUTHWEST GAS HOLDINGS, INC.						Form 10-Q
SOUTHWEST GAS CORPORATION						March 31, ~~2023~~2024

SOUTHWEST GAS CORPORATION AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF EQUITY

(In thousands)

(Unaudited)


						Three Months Ended March 31,
						2023		2022
					Three Months Ended March 31,						Three Months Ended March 31,
					2024					2024		2023
Common stock shares	Common stock shares
		Beginning and ending balances				47,482		47,482
		Beginning and ending balances
		Beginning and ending balances
		Beginning and ending balances
Common stock amount	Common stock amount
		Beginning and ending balances				$	49,112	$	49,112
		Beginning and ending balances
		Beginning and ending balances
		Beginning and ending balances
Additional paid-in capital	Additional paid-in capital
		Beginning balances				1,622,969		1,618,911
				Share-based compensation		1,950		1,705

		Ending balances				1,624,919		1,620,616
		Beginning balances
		Beginning balances
		Beginning balances
			Share-based compensation
	Ending balances
Accumulated other comprehensive loss	Accumulated other comprehensive loss
		Beginning balances				(38,261)		(46,913)
				Net actuarial gain arising during period, less amortization of unamortized benefit plan cost, net of tax		196		1,126
				FSIRS amounts reclassified to net income, net of tax		—		416
		Ending balances				(38,065)		(45,371)
		Beginning balances
		Beginning balances
		Beginning balances
			Net actuarial gain arising during period, less amortization of unamortized benefit plan cost, net of tax
	Ending balances
Retained earnings	Retained earnings
		Beginning balances				935,355		906,827
				Net income		134,696		111,795
				Share-based compensation		(287)		(445)
				Dividends declared to Southwest Gas Holdings, Inc.		(39,600)		(31,000)
		Ending balances				1,030,164		987,177
		Beginning balances
		Beginning balances
		Beginning balances
			Net income
			Share-based compensation
			Dividends declared to Southwest Gas Holdings, Inc.
	Ending balances
Total Southwest Gas Corporation equity ending balances	Total Southwest Gas Corporation equity ending balances					$	2,666,130	$	2,611,534

The accompanying notes are an integral part of these statements.


			12


SOUTHWEST GAS HOLDINGS, INC.						Form 10-Q
SOUTHWEST GAS CORPORATION						March 31, ~~2023~~2024

Note 1 – Background, Organization, and Summary of Significant Accounting Policies

Nature of Operations. Southwest Gas Holdings, Inc. (together with its subsidiaries, the “Company”) is a holding company, owning all of the shares of common stock of Southwest Gas Corporation (“Southwest” or the “natural gas distribution” segment), and through the first quarter of 2024, all of the shares of common stock of Centuri Group, Inc. (“~~Centuri,” or the “utility~~utility infrastructure services” segment), and until February 14, 2023, all of the shares of common stock of MountainWest Pipelines Holding Company (“MountainWest” or the “pipeline and storage” segment). References throughout this document in reference to “Centuri” relate to Centuri Group, Inc., for earlier periods or more recently, to Centuri Holdings, Inc.

In December 2022, the Company announced that its Board of Directors (the “Board”) unanimously determined to take strategic actions to simplify the Company’s portfolio of businesses. These actions included entering into a definitive agreement to sell 100% of MountainWest to Williams Partners Operating LLC (“Williams”) for $1.5 billion in total enterprise value, subject to certain adjustments (collectively, the “MountainWest sale”). ~~Additionally, the Company determined it will pursue a spin-off of Centuri (the “Centuri spin-off”), to form a new independent publicly traded utility infrastructure services company.~~ The MountainWest sale closed on February 14, 2023.

As part of this simplification strategy, the Company previously communicated that it would pursue a separation of Centuri. In April 2024, the Company announced the completion of an initial public offering (“IPO”) of Centuri Holdings, Inc. common stock, with the issuance of 14,260,000 shares ($0.01 par value) at $21.00 per share, along with a private placement of 2,591,929 shares at the same public offering price with Icahn Partners LP and Icahn Partners Master Fund LP, investment entities associated with Carl C. Icahn. The Company owns approximately 81% of Centuri ~~spin-off is expected to be completed in the fourth quarter of 2023 or~~following these events. Through the first quarter of 2024 and leading up to the IPO, Centuri continued to be ~~tax free~~wholly owned by Southwest Gas Holdings, Inc. Centuri continues to be consolidated as part of these financial statements, and will continue to be consolidated until such time as the conditions for consolidation are no longer met. Centuri now makes separate filings with the Securities and Exchange Commission (the “SEC”) as a public company. The Company’s common stock continues to trade under the ticker symbol “SWX,” while Centuri’s common stock trades under the ticker symbol “CTRI.” As part of the IPO and related undertakings, and to ultimately facilitate a full separation of Centuri over periods ahead, multiple agreements were executed between the Company and ~~its stockholders for U.S. federal income tax purposes.~~Centuri, including a Separation Agreement, a Tax Matters Agreement, and a Registration Rights Agreement. Centuri’s new Board of Directors includes certain overlapping board members with the Company, including Andrew W. Evans, Anne L. Mariucci, and Karen S. Haller (the Company’s Chief Executive Officer). See also Note 8 - Dispositions ~~for more information.~~.

Southwest is engaged in the business of purchasing, distributing, and transporting natural gas for customers in portions of Arizona, Nevada, and California. Public utility rates, practices, facilities, and service territories of Southwest are subject to regulatory oversight. The timing and amount of rate relief can materially impact results of operations. Natural gas purchases and the timing of related recoveries can materially impact ~~liquidity. Results~~liquidity, highlighted by the significant amount of cash existing as of the end of the first quarter of 2024, reflective of the collection of gas cost under purchased gas cost mechanisms as a component of customer bills. While mechanisms exist in all states in which Southwest operates, which effectively and primarily decouple authorized operating cost recovery and profitability from the volume of natural gas sold, thereby also incentivizing energy conservation, results for the natural gas distribution segment are higher during winter periods due to the seasonality incorporated in its regulatory rate structures.

Centuri is a strategic utility infrastructure services company dedicated to partnering with North America’s gas and electric providers to build and maintain the energy network that powers millions of homes across the United States (“U.S.”) and Canada. Centuri derives revenue primarily from installation, replacement, repair, and maintenance of energy networks. Centuri operates in the U.S., primarily as NPL, Neuco, Linetec, and Riggs Distler, and in Canada, primarily as NPL Canada. Utility infrastructure services activity is seasonal in many of Centuri’s operating areas. Peak periods are the summer and fall months in colder climate areas, such as the northeastern and midwestern U.S. and in Canada. In warmer climate areas, such as the southwestern and southeastern U.S., utility infrastructure services activity continues year round.

Basis of Presentation. The condensed consolidated financial statements of Southwest Gas Holdings, Inc. and subsidiaries and Southwest (with its subsidiaries) included herein have been prepared pursuant to the rules and regulations of the ~~Securities and Exchange Commission (the “SEC”).~~SEC. The year-end ~~2022~~2023 condensed balance sheet data was derived from audited financial statements. Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) have been condensed or omitted pursuant to such rules and regulations. No substantive change has occurred with regard to the Company’s business segments on the whole during the recently completed ~~quarter, other than the sale of MountainWest, discussed above.~~quarter.

The preparation of the condensed consolidated financial statements requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, and disclosure of contingent assets and liabilities, as of the date of the financial statements, ~~and~~as well as the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. In the opinion of management, all adjustments, consisting of normal recurring items and estimates necessary for a fair statement of results for the interim periods, have been made.


			13


SOUTHWEST GAS HOLDINGS, INC.						Form 10-Q
SOUTHWEST GAS CORPORATION						March 31, 2024

These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto of Southwest and the Company included in ~~the 2022~~our 2023 Annual Report ~~to Stockholders, which is incorporated by reference into~~on Form 10-K for the ~~2022 Form 10-K.~~fiscal year ended December 31, 2023.

In the first quarter of 2023, management identified a misstatement related to its accounting for the cost of gas sold at Southwest, thereby determining that Net cost of gas sold was overstated in 2021 and 2022 by $2.3 million and $5.7 million, respectively. Southwest made an adjustment in the first quarter of 2023 to reduce Net cost of gas sold and to increase its asset balance for Deferred purchased gas cost by $8 million.

Also in the first quarter of 2023, the Company identified an approximately $21 million misstatement related to its initial estimation of the loss recorded upon reclassifying MountainWest as an asset held for sale during the year ended December 31, 2022. Consequently, the impairment loss for the year ended December 31, 2022 was understated by approximately $21 million, which was corrected in the first quarter of 2023.

The Company (and Southwest, with respect to Net cost of gas sold) assessed, both quantitatively and qualitatively, the impact of these items on previously issued financial statements, concluding they were not material to any ~~prior~~earlier period or to the ~~current~~ period ~~financial statements.~~


			13


~~SOUTHWEST GAS HOLDINGS, INC.~~						~~Form 10-Q~~
~~SOUTHWEST GAS CORPORATION~~						~~March 31, 2023~~

of correction.

Other Property and Investments. Other property and investments on Southwest’s and the Company’s Condensed Consolidated Balance Sheets includes:

(Thousands of dollars) March 31, 2023 December 31, 2022
Net cash surrender value of COLI policies $ 138,689 $ 136,245
Other property 5,897 33,152
Total Southwest Gas Corporation 144,586 169,397
Non-regulated property, equipment, and intangibles 1,698,327 1,677,218
Non-regulated accumulated provision for depreciation and amortization (624,693) (596,518)
Other property and investments 32,107 31,075
Total Southwest Gas Holdings, Inc. $ 1,250,327 $ 1,281,172

Included in the table above are the net cash surrender values of company-owned life insurance (“COLI”) policies. These life insurance policies on members of management and other key employees are used by Southwest to indemnify itself against the loss of talent, expertise, and knowledge, as well as to provide indirect funding for certain nonqualified benefit plans. The term non-regulated in regard to assets and related balances in the table above is in reference to the non-rate regulated operations of Centuri.


(Thousands of dollars)	March 31, 2024		December 31, 2023
Net cash surrender value of COLI policies	$	150,182	$	146,546
Other property	6,080		6,112
Total Southwest Gas Corporation	156,262		152,658
Non-regulated property, equipment, and intangibles	1,750,380		1,752,094
Non-regulated accumulated provision for depreciation and amortization	(691,872)		(675,632)
Other property and investments	38,091		37,220
Total Southwest Gas Holdings, Inc.	$	1,252,861	$	1,266,340

Held for sale. ~~The~~In the first quarter of 2023, the Company and Southwest ~~have classified~~concluded certain assets associated with ~~its~~their previous corporate headquarters as held for sale during the first quarter of 2023. An agreement for sale was signed in May 2023, subject to certain closing conditions, including possible extension periods. Amounts to be realized above the carrying value are not expected to be material to the financial statements overall. Management determined that the assets met the criteria to be classified as held for ~~sale as of March 31, 2023.~~sale. As a result, the Company and Southwest reclassified approximately $27 million from Other property and investments to ~~current~~Current assets held for sale on their respective Condensed Consolidated Balance Sheets ~~at March 31,~~in the first quarter of 2023. In 2023, the Company and Southwest recorded an estimated loss of $5.2 million on the assets based upon an updated fair value less costs to sell. The sale was completed in January 2024.

Cash and Cash Equivalents. Cash and cash equivalents of the Company include $~~32.7~~407.4 million and ~~$30~~$48.9 million of money market fund investments at March 31, ~~2023~~2024 and December 31, ~~2022,~~2023, respectively. ~~The money market fund investments for Southwest were $29.6~~Of these amounts, $407.2 million and $38.6 million at March 31, ~~2023~~2024 and ~~$17.6 million at~~ December 31, ~~2022, respectively. These investments fall within Level 2 of the fair value hierarchy, due~~2023, respectively, were held by Southwest. Refer to ~~the asset valuation methods used by money market funds.~~discussion above regarding recent collections under Southwest’s purchased gas adjustment mechanisms.

Noncash investing activities ~~for the Company and Southwest~~ include capital expenditures that were not yet paid, thereby remaining in accounts payable, ~~the~~ amounts related to which declined by approximately $20.8 million and $9.6 million during the three months ended March 31, 2024, for the Company and Southwest, respectively; and declined approximately $37.3 million and $34.2 million during the three months ended March 31, 2023, ~~respectively,~~for the Company and ~~increased $5.5 million~~Southwest, respectively.

The Company and ~~$5.7 million during the twelve months ended March 31, 2023, respectively.~~

~~Accounts Receivable, net of allowances.~~ ~~Following an earlier moratorium on account disconnections amidst the COVID-19 environment, account collection efforts resumed in 2021 in all jurisdictions in which~~ Southwest operates. Ultimately, some accounts that are receivable at the end of any reporting date may not be collected, and if collection is unsuccessful, such accounts are written off. Estimates as to collectibility are made on an ongoing basis. However, Southwest continues to actively work with customers experiencing financial hardship by means of flexible payment options and partnering with assistance agencies. The cost of gas included in customer rates also influences account balances at each reporting date.

~~Deferred Purchased Gas Costs.~~ ~~The various regulatory commissions have established procedures to enable rate-regulated companies to adjust billing rates for changes~~expanded their presentation in the ~~cost~~first quarter 2024 to show the Change in short-term portion of ~~natural gas purchased.~~credit facility and Repayment of short-term debt as separate line items within their Condensed Consolidated Statements of Cash Flows. The ~~difference between the current cost of gas purchased and the cost of gas recovered in billed rates is deferred. Generally, these deferred amounts are recovered or refunded within one year.~~comparable prior-year period has been updated to reflect this change.

Prepaid and other current assets. Prepaid and other current assets for the Company and Southwest include, among other things, materials and operating supplies of ~~$79~~$80.9 million at March 31, ~~2023~~2024 and ~~$77.3~~$83.4 million at December 31, ~~2022~~2023 (carried at weighted average cost). ~~Also included in the balance was $207 million as of December 31, 2022 in accrued purchased gas cost, with no corresponding asset balance as of March 31, 2023.~~

Goodwill. Goodwill is assessed as of October 1st each year for impairment, or more frequently, if circumstances indicate ~~it may be more likely than not that~~an impairment to the ~~fair~~carrying value of ~~a reporting unit is less than its carrying value.~~goodwill may have occurred. The Company’s reporting units for goodwill are its operating segments, which are also its reportable segments. Since December 31, ~~2022,~~2023, management qualitatively assessed whether events during the first three months of ~~2023~~2024 indicated it was more likely than not that the fair value of our reporting units was less than their carrying value, which if the case, could be an indication of a goodwill impairment. Through management’s assessments, ~~during first quarter of 2023,~~ no impairment was deemed to have occurred in the continuing segments of the Company. ~~However, there can be no assurances that future assessments of goodwill will not~~Goodwill in the Natural Gas


			14


SOUTHWEST GAS HOLDINGS, INC.						Form 10-Q
SOUTHWEST GAS CORPORATION						March 31, ~~2023~~2024

result in an impairment, and various factors, including changes in the business, strategic initiatives, economic conditions, governmental monetary policies, interest rates, or others, on their own or in combination with each other, could result in the fair value of reporting units being lower than their carrying values. Goodwill in the Natural Gas Distribution and Utility Infrastructure Services segments is included in ~~their~~the respective Condensed Consolidated Balance Sheets as follows:


(Thousands of dollars)	(Thousands of dollars)	Natural Gas Distribution		Utility Infrastructure Services		Total Company		(Thousands of dollars)	Natural Gas Distribution	Utility Infrastructure Services	Total Company
December 31, 2022		$	11,155	$	776,095	$	787,250
December 31, 2023
Foreign currency translation adjustment	Foreign currency translation adjustment	—		84		84
March 31, 2023		$	11,155	$	776,179	$	787,334
March 31, 2024

Other Current Liabilities. Management recognizes in its balance sheets various liabilities that are expected to be settled through future cash payment within the next twelve months, including amounts payable under regulatory mechanisms, customary accrued expenses for employee compensation and benefits, declared but unpaid dividends, and miscellaneous other accrued liabilities. Other current liabilities for the Company include ~~$44.2 million and $41.6~~$44.4 million of dividends declared as of both March 31, ~~2023~~2024 and December 31, ~~2022,~~2023, respectively. Also included in the balance for the Company and Southwest was ~~$68~~$120.3 million ~~as of March 31, 2023~~and $87.6 million in accrued purchased gas cost ~~with no corresponding liability balance~~ as of March 31, 2024 and December 31, ~~2022.~~2023, respectively.

Other Income (Deductions). The following table provides the composition of significant items included in Other income (deductions) in Southwest’s and the Company’s Condensed Consolidated Statements of Income:


		Three Months Ended March 31,				Twelve Months Ended March 31,
		Three Months Ended March 31,
		Three Months Ended March 31,
		Three Months Ended March 31,
(Thousands of dollars)
(Thousands of dollars)
(Thousands of dollars)	(Thousands of dollars)	2023		2022		2023		2022
Southwest Gas Corporation:	Southwest Gas Corporation:
Southwest Gas Corporation:
Southwest Gas Corporation:
Change in COLI policies
Change in COLI policies
Change in COLI policies	Change in COLI policies	$	2,400	$	(2,000)	$	(1,000)	$	4,100
Interest income	Interest income	12,471		2,801		25,853		7,198
Interest income
Interest income
Equity AFUDC
Equity AFUDC
Equity AFUDC	Equity AFUDC	—		76		(76)		(905)
Other components of net periodic benefit cost	Other components of net periodic benefit cost	4,959		(188)		4,396		(10,704)
Miscellaneous income and (expense)		(1,387)		626		(18,929)		(3,483)
Other components of net periodic benefit cost
Other components of net periodic benefit cost
Miscellaneous expense
Miscellaneous expense
Miscellaneous expense
Southwest Gas Corporation - total other income (deductions)	Southwest Gas Corporation - total other income (deductions)	18,443		1,315		10,244		(3,794)
Southwest Gas Corporation - total other income (deductions)
Southwest Gas Corporation - total other income (deductions)
Centuri, MountainWest, and Southwest Gas Holdings, Inc.:
Centuri, MountainWest, and Southwest Gas Holdings, Inc.:
Centuri, MountainWest, and Southwest Gas Holdings, Inc.:	Centuri, MountainWest, and Southwest Gas Holdings, Inc.:

Foreign transaction gain (loss)	Foreign transaction gain (loss)	(690)		3		284		(16)

Foreign transaction gain (loss)

Foreign transaction gain (loss)
Equity AFUDC	Equity AFUDC	82		182		365		182
Equity in earnings of unconsolidated investments		360		515		2,474		749
Equity AFUDC
Equity AFUDC
Equity in earnings (loss) of unconsolidated investments
Equity in earnings (loss) of unconsolidated investments
Equity in earnings (loss) of unconsolidated investments
Miscellaneous income and (expense)
Miscellaneous income and (expense)
Miscellaneous income and (expense)	Miscellaneous income and (expense)	(5)		(651)		(2,467)		303
Corporate and administrative	Corporate and administrative	270		(120)		127		(127)
Corporate and administrative
Corporate and administrative
Southwest Gas Holdings, Inc. - total other income (deductions)	Southwest Gas Holdings, Inc. - total other income (deductions)	$	18,460	$	1,244	$	11,027	$	(2,703)
Southwest Gas Holdings, Inc. - total other income (deductions)
Southwest Gas Holdings, Inc. - total other income (deductions)

Included in the table above is the change in cash surrender values of COLI policies (including net death benefits recognized). Current tax regulations provide for tax-free treatment of life insurance (death benefit) proceeds. Therefore, changes in the cash surrender values of COLI policies, as they progress towards the ultimate death benefits, are also recorded without tax consequences. Interest income primarily relates to Southwest’s regulatory asset balances, including its deferred purchased gas cost ~~mechanisms. Interest income includes carrying charges on regulatory account balances, including deferred purchased gas cost balances,~~mechanisms, the combined balance of which ~~increased~~ranged from ~~$368 million as of March 31, 2022 to~~ $970 million as of March 31, ~~2023.~~2023 to $199 million as of March 31, 2024. Refer also to Note 2 – Components of Net Periodic Benefit Cost.

Redeemable Noncontrolling ~~Interests.~~Interests. In connection with the acquisition of Linetec in November 2018, the previous owner initially retained a 20% equity interest in that entity, with redemption being subject to certain rights based on the passage of time or upon the occurrence of certain triggering events. Effective in 2022, the Company, through Centuri, had the right, but not the obligation, to purchase at fair value (subject to a floor) a portion of the interest held by the previous owner, and in incremental amounts each year thereafter. In March 2022, the parties agreed to a partial redemption, reducing the noncontrolling interest to 15%, and in March 2023, ~~agreeing once again~~agreed to a partial 5% redemption (of the 15% then remaining)~~, and~~. Then again in April 2023, Centuri paid $39.9 million to the previous owner, thereby ~~reduce~~reducing the ~~noncontrolling interest~~balance continuing to be redeemable at that time to 10% under the terms of the original agreement. ~~As a result~~In March 2024, the parties entered into an agreement to redeem the remaining 10% equity interest for $92 million, which resulted in Centuri owning all of ~~this most recent election, Centuri accrued $39.9 million~~the equity interest in Linetec as of March 31, ~~2023, which was~~2024. The Company paid to the ~~previous owner of Linetec~~$92 million in April, ~~2023.~~in accordance with the agreement. The impact of this transaction has been excluded from the Company’s Condensed Consolidated Statement of Cash Flows for the first quarter of 2024 due to its noncash nature during the period.

Separately, certain members of Riggs Distler management have a 1.41% interest in Drum, which is redeemable, subject to certain rights based on the passage of time or upon the occurrence of certain triggering events. A portion of the redeemable noncontrolling interest was funded through promissory notes made to noncontrolling interest holders bearing interest at the prime rate plus 2%.


			15


SOUTHWEST GAS HOLDINGS, INC.						Form 10-Q
SOUTHWEST GAS CORPORATION						March 31, ~~2023~~2024

~~2023~~During the first quarter of 2024, Centuri forgave all outstanding promissory notes and unpaid interest owed from the Riggs Distler noncontrolling interest holders and in exchange obtained 0.47% portion of the equity interest in Drum that had been funded through these notes. This comprises most of the change noted below as redemption of Drum interests during the quarter. Additionally, during the first quarter of 2024, Centuri reached an agreement to purchase 0.13% of the noncontrolling interest in Drum for $0.8 million, the majority which was accrued in March 2024 and ultimately paid in April 2024. The impact of the accrued amount has been excluded from the Company’s Condensed Consolidated Statement of Cash Flows for the first quarter of 2024 due to ~~its~~the noncash nature in advance of the April ~~2023~~2024 payment. The remaining ~~balance continuing to be redeemable~~noncontrolling interest in Drum outstanding as of March 31, ~~2023 is 10% under the terms of the original agreement,~~2024 was 0.81%, with Centuri ~~now~~ owning ~~a 90% stake in Linetec~~.

~~Certain members~~over 99% of ~~Riggs Distler management have a 1.42% interest in~~ Drum ~~which is redeemable, subject to certain rights based on the passage of time or upon the occurrence of certain triggering~~following these events.

Significant changes in the value of the redeemable noncontrolling interests, above a floor determined at the establishment date, are recognized as they occur, and the carrying value is adjusted as necessary at each reporting date. The fair value is estimated using a market approach that utilizes certain financial metrics from guideline public companies of similar industry and operating characteristics. Based on the fair value model employed, the estimated redemption value of the Linetec redeemable noncontrolling interest increased approximately $5.8 million during the three months ended March 31, 2023, notwithstanding the change resulting from the partial redemption noted above. Valuation adjustments also impact retained earnings, as reflected in the Company’s Condensed Consolidated Statement of Equity, but do not impact net income. The following depicts changes to the balances of the redeemable noncontrolling interests:


(Thousands of dollars):	(Thousands of dollars):	Linetec		Drum		Total		(Thousands of dollars):	Linetec	Drum	Total
Balance, December 31, 2022		$	146,765	$	12,584	$	159,349
Net income attributable to redeemable noncontrolling interests		1,683		56		1,739
Balance, December 31, 2023
Net income (loss ) attributable to redeemable noncontrolling interests
Redemption value adjustments	Redemption value adjustments	5,832		—		5,832
Redemption of equity interest from noncontrolling party	Redemption of equity interest from noncontrolling party	(39,894)		—		(39,894)
Balance, March 31, 2023		$	114,386	$	12,640	$	127,026
Balance, March 31, 2024

Earnings Per Share. Basic earnings per share (“EPS”) in each period of this report were calculated by dividing net income attributable to Southwest Gas Holdings, Inc. by the weighted-average number of shares during those periods. Diluted EPS includes additional weighted-average common stock equivalents (performance shares and restricted stock units). Unless otherwise noted, the term “Earnings Per Share” refers to Basic EPS. A reconciliation of the denominator used in Basic and Diluted EPS calculations is shown in the following table:

Three Months Ended
March 31,

Twelve Months Ended
March 31,

Three Months Ended March 31,

(In thousands)

2023

2022

2023

2022

Weighted average basic shares

68,265

60,737

67,413

59,919

Weighted average basic shares

Effect of dilutive securities:

Restricted stock units (1)(2)

154

117

—

125

Effect of dilutive securities:

Restricted stock units (1)

Weighted average diluted shares

68,419

60,854

67,413

60,044

Weighted average diluted shares

(1) The number of ~~anti-dilutive restricted stock units excluded from the calculation of diluted shares during the twelve months ended~~ ~~March 31, 2023~~ ~~is 166,000.~~

~~(2) The number of~~ securities included ~~132,000~~136,000 and ~~112,000~~132,000 performance shares during the three months ended March 31, ~~2023~~2024 and ~~2022, and 149,000 and~~ ~~114,000 performance shares during the twelve months ended~~ March 31, 2023, ~~and 2022, respectively,~~ the total of which was derived by assuming that target performance will be achieved during the relevant performance period.

Income Taxes. The ~~Company’s~~Company’s effective tax rate was ~~37.6%~~16.3% for the three months ended March 31, ~~2023,~~2024, compared to ~~19.9%~~37.6% for the corresponding period in ~~2022.~~2023. The effective ~~tax~~ rate ~~increase~~decrease was primarily due to the MountainWest sale ~~and includes~~in 2023, which also included the impact of book versus tax basis differences related to the transaction (See Note 8 - Dispositions).

Southwest’s effective tax rate was ~~18.3%~~18.2% for the three months ended March 31, ~~2023,~~2024, compared to ~~20.6%~~18.3% for the corresponding period in ~~the prior year quarter.~~2023. These amounts varied from the statutory rate primarily as the result of the amortization of excess deferred income taxes.

In April 2023, the Internal Revenue Service ~~(“IRS”)~~ issued Revenue Procedure 2023-15, which provides a safe harbor method of accounting that taxpayers may use to determine whether expenditures to repair, maintain, replace, or improve natural gas transmission and distribution property must be capitalized for tax purposes. The Company and Southwest are currently reviewing this revenue procedure to determine the potential impact on their financial position, results of operations, and cash flows.


			16


SOUTHWEST GAS HOLDINGS, INC.						Form 10-Q
SOUTHWEST GAS CORPORATION						March 31, ~~2023~~2024

Recent Accounting Standards Updates.

~~Accounting pronouncements~~Recently issued accounting pronouncement that will be effective ~~or adopted~~ in ~~2023:~~2024 and later periods:

In ~~March 2020,~~November 2023, the Financial Accounting Standards Board ~~(“FASB”~~(the “FASB”) issued ~~Accounting Standards Update (“ASU”) 2020-04 “Reference Rate Reform~~ASU 2023-07 “Segment Reporting (Topic ~~848)~~280): ~~Facilitation of the Effects of Reference Rate Reform on Financial Reporting.~~Improvements to Reportable Segment Disclosures.” The update, ~~provides optional guidance for a limited time~~among other amendments, requires disclosure of significant segment expenses that are regularly provided to ~~ease~~ the ~~potential burden in accounting for,~~chief operating decision maker (“CODM”) and included within each reported measure of segment profit or ~~recognizing~~loss, as well as an amount and description of the ~~effects~~composition of ~~reference rate reform on financial reporting, including when modifying a contract (during~~other segment items to reconcile to segment profit or loss, and also requires the ~~eligibility period covered by~~title and position of the entity’s CODM to be disclosed. The update additionally extends certain annual disclosures to interim periods. The provisions of the update toare effective for fiscal years beginning after December 15, 2023 and interim periods within the topic) to replace a reference rate affected by reference rate reform. The update applies only to contracts and hedging relationships that reference the London Interbank Offered Rate (“LIBOR”) or another reference rate expected to be discontinued due to reference rate reform. Infiscal years beginning after December 2022, the FASB issued ASU 2022-06 “Reference Rate Reform (Topic 848): Deferral of the Sunset Date of Topic 848.” The update provides deferral of the sunset date of Topic 848 from December 31, 2022 to December 31,15, 2024. Early adoption is permitted. Management ~~will continue to monitor~~is evaluating the impacts this update might have on the Company’s and Southwest’s ~~consolidated financial statements and disclosures, and~~disclosures.

Recently issued accounting pronouncement that will ~~reflect such appropriately,~~be effective after 2024:

In December 2023, the FASB issued ASU 2023-09 “Income Taxes (Topic 740): Improvements to Income Tax Disclosures.” The update, among other amendments, provides for enhanced income tax information primarily through changes in the ~~event that~~rate reconciliation and income taxes paid. The update is effective for annual periods beginning after December 15, 2024; early adoption is permitted. Management is evaluating the ~~optional guidance is elected. See also LIBOR discussion in~~ impacts this update might have on the Company’s and Southwest’s disclosures.

~~Note 5 – Debt~~.

~~There are no other recently issued accounting standards updates that are expected to be adopted or material to Southwest or the Company effective in 2023 or thereafter.~~


			17


SOUTHWEST GAS HOLDINGS, INC.						Form 10-Q
SOUTHWEST GAS CORPORATION						March 31, ~~2023~~2024

Note 2 – Components of Net Periodic Benefit Cost

Southwest has a noncontributory qualified retirement plan with defined benefits covering substantially all employees ~~for employees~~(those hired before ~~2022~~2022) and a separate unfunded supplemental retirement plan (“SERP”), which is limited to officers ~~also~~ hired before 2022. Southwest also provides limited postretirement benefits other than pensions (“PBOP”) to its qualified retirees for health care, dental, and life insurance.

The service cost component of net periodic benefit costs included in the table below is a component of an overhead loading process associated with the cost of labor. The overhead process ultimately results in allocation of service cost to the same accounts to which productive labor is charged. As a result, service costs become components of various accounts, primarily operations and maintenance expense, net regulated operations plant, and deferred charges and other assets for both the Company and Southwest. The other components of net periodic benefit cost are reflected in Other income (deductions) on the Condensed Consolidated Statements of Income of each entity. Variability in total net periodic benefit cost between periods, especially with regard to the Qualified Retirement Plan, is subject to changes in underlying actuarial assumptions between periods, notably the discount rate.

Qualified Retirement Plan
March 31,
Three Months Twelve Months
2023 2022 2023 2022
(Thousands of dollars)
Service cost $ 6,460 $ 11,028 $ 39,542 $ 41,897
Interest cost 14,791 11,251 48,546 41,575
Expected return on plan assets (21,015) (19,978) (80,950) (74,242)
Amortization of net actuarial loss 84 8,117 24,435 39,583
Net periodic benefit cost $ 320 $ 10,418 $ 31,573 $ 48,813
SERP
March 31,
Three Months Twelve Months
2023 2022 2023 2022
(Thousands of dollars)
Service cost $ 62 $ 106 $ 380 $ 501
Interest cost 531 360 1,612 1,433
Amortization of net actuarial loss 249 588 2,011 2,570
Net periodic benefit cost $ 842 $ 1,054 $ 4,003 $ 4,504
PBOP
March 31,
Three Months Twelve Months
2023 2022 2023 2022
(Thousands of dollars)
Service cost $ 317 $ 485 $ 1,773 $ 1,753
Interest cost 825 613 2,664 2,258
Expected return on plan assets (606) (807) (3,027) (3,236)
Amortization of prior service costs 44 44 175 763
Net periodic benefit cost $ 580 $ 335 $ 1,585 $ 1,538


	Qualified Retirement Plan
	March 31,
	Three Months
	2024		2023
(Thousands of dollars)
Service cost	$	7,063	$	6,460
Interest cost	15,097		14,791
Expected return on plan assets	(21,953)		(21,015)
Amortization of net actuarial loss	1,577		84
Net periodic benefit cost	$	1,784	$	320

	SERP
	March 31,
	Three Months
	2024		2023
(Thousands of dollars)
Service cost	$	61	$	62
Interest cost	542		531
Amortization of net actuarial loss	333		249
Net periodic benefit cost	$	936	$	842

	PBOP
	March 31,
	Three Months
	2024		2023
(Thousands of dollars)
Service cost	$	322	$	317
Interest cost	794		825
Expected return on plan assets	(565)		(606)
Amortization of prior service costs	44		44

Net periodic benefit cost	$	595	$	580


			18


SOUTHWEST GAS HOLDINGS, INC.						Form 10-Q
SOUTHWEST GAS CORPORATION						March 31, ~~2023~~2024

Note 3 – Revenue

The following information about the Company’s revenues is presented by segment. Southwest encompasses the natural gas distribution ~~segment.~~segment and Centuri encompasses the utility infrastructure services ~~segment. MountainWest, commencing January 2022 (following its acquisition) and until its sale in mid-February 2023, encompassed the pipeline and storage~~ segment.

Natural Gas Distribution Segment:

Southwest’s operating revenues included on the Condensed Consolidated Statements of Income of both the Company and Southwest include revenue from contracts with customers, which is shown below, disaggregated by customer type, in addition to other categories of revenue:




		Three Months Ended March 31,				Twelve Months Ended March 31,
(Thousands of dollars)	(Thousands of dollars)	2023		2022		2023		2022
(Thousands of dollars)
(Thousands of dollars)
Residential
Residential
Residential	Residential	$	739,313	$	514,586	$	1,549,521	$	1,147,055
Small commercial	Small commercial	174,184		123,984		428,720		312,800
Small commercial
Small commercial
Large commercial
Large commercial
Large commercial	Large commercial	31,091		20,161		96,164		64,859
Industrial/other	Industrial/other	21,114		9,972		62,036		38,515
Industrial/other
Industrial/other
Transportation
Transportation
Transportation	Transportation	30,543		26,632		104,553		94,336
Revenue from contracts with customers	Revenue from contracts with customers	996,245		695,335		2,240,994		1,657,565
Revenue from contracts with customers
Revenue from contracts with customers
Alternative revenue program revenues (deferrals)
Alternative revenue program revenues (deferrals)
Alternative revenue program revenues (deferrals)	Alternative revenue program revenues (deferrals)	(86,204)		(23,499)		(81,183)		6,055
Other revenues (1)	Other revenues (1)	4,838		4,703		13,598		12,777
Other revenues (1)
Other revenues (1)
Total Regulated operations revenues	Total Regulated operations revenues	$	914,879	$	676,539	$	2,173,409	$	1,676,397
Total Regulated operations revenues
Total Regulated operations revenues

(1) Amounts include late fees and other miscellaneous revenues, and may also include the impact of certain regulatory mechanisms. ~~Also includes the impacts of a temporary moratorium on late fees and disconnection for nonpayment during the COVID-19 pandemic.~~

Utility Infrastructure Services Segment:

During the fourth quarter of 2023, Utility infrastructure services segment management, in connection with Centuri’s planned separation, changed its service type revenue classification to align with changes in its organizational structure, and as a result, prior year “other” revenue has been recast into gas infrastructure services or electric power infrastructure services to reflect these changes, with no impact to revenue overall. The following tables display Centuri’s revenue, reflected as Utility infrastructure services revenues on the Condensed Consolidated Statements of Income of the Company, representing revenue from contracts with customers disaggregated by service and contract types:

Three Months Ended
March 31, Twelve Months Ended March 31,
(Thousands of dollars) 2023 2022 2023 2022
Service Types:
Gas infrastructure services $ 297,408 $ 260,682 $ 1,568,544 $ 1,341,185
Electric power infrastructure services 233,640 181,968 829,796 613,209
Other 122,245 81,227 491,403 364,169
Total Utility infrastructure services revenues $ 653,293 $ 523,877 $ 2,889,743 $ 2,318,563

Three Months Ended
March 31, Twelve Months Ended March 31,
(Thousands of dollars) 2023 2022 * 2023 2022*
Contract Types:
Master services agreement $ 547,606 $ 445,345 $ 2,444,481 $ 1,804,643
Bid contract 105,687 78,532 445,262 513,920
Total Utility infrastructure services revenues $ 653,293 $ 523,877 $ 2,889,743 $ 2,318,563
Unit price contracts $ 328,527 $ 302,523 $ 1,634,135 $ 1,437,156
Fixed price contracts 166,915 86,537 578,417 319,685
Time and materials contracts 157,851 134,817 677,191 561,722
Total Utility infrastructure services revenues $ 653,293 $ 523,877 $ 2,889,743 $ 2,318,563


	Three Months Ended March 31,
(Thousands of dollars)	2024		2023*
Service Types:
Gas infrastructure services	$	261,226	$	298,640
Electric power infrastructure services	260,466		342,275
Other	6,331		12,378
Total Utility infrastructure services revenues	$	528,023	$	653,293

*The ~~Company identified a misstatement in the first quarter 2022 disclosure which resulted in an understatement~~three months ended March 31, 2023 were previously presented as: Gas infrastructure services of ~~$88.8 million in the master~~$297,408, Electric power infrastructure services ~~agreement category~~of $233,640, and ~~an overstatement by the same amount in the bid contract category. Management concluded this~~Other of $122,245.


			19


SOUTHWEST GAS HOLDINGS, INC.						Form 10-Q
SOUTHWEST GAS CORPORATION						March 31, ~~2023~~2024

~~item was not material to the previously issued financial statements and revised the disclosures for the three- and twelve- months ended March 31, 2022.~~


	Three Months Ended March 31,
(Thousands of dollars)	2024		2023
Contract Types:
Master services agreement	$	443,242	$	547,606
Bid contract	84,781		105,687
Total Utility infrastructure services revenues	$	528,023	$	653,293

Unit price contracts	$	307,849	$	328,527
Fixed price contracts	110,282		166,915
Time and materials contracts	109,892		157,851
Total Utility infrastructure services revenues	$	528,023	$	653,293

The following table provides information about contracts receivable and revenue earned on contracts in progress in excess of billings (contract assets), both of which are included within Accounts receivable, net of allowances, as well as amounts billed in excess of revenue earned on contracts (contract liabilities), at Centuri, which are included in Other current liabilities as of March 31, ~~2023~~2024 and December 31, ~~2022~~2023 on the Company’s Condensed Consolidated Balance Sheets:

(Thousands of dollars)

March 31, 2023

December 31, 2022

(Thousands of dollars)

March 31, 2024

December 31, 2023

Contracts receivable, net

322,558

394,022

Revenue earned on contracts in progress in excess of billings

279,624

238,059

Amounts billed in excess of revenue earned on contracts

39,595

35,769

~~The revenue~~Revenue earned on contracts in progress in excess of billings (contract ~~asset)~~assets) that are not expected to be recognized within a year from the financial statement date are not included in the table above, and were $16.5 million as of March 31, 2024, and $0.2 million as of December 31, 2023. These non-current balances were included in Deferred charges and other assets on the Company’s Condensed Consolidated Balance Sheets.

These contract assets primarily ~~relates~~relate to Centuri’s ~~right~~rights to consideration for work completed, but not billed and/or approved for billing at the ~~reporting date. These contract assets~~reporting date, and are transferred to contracts receivable when the rights become unconditional. The amounts billed in excess of revenue earned ~~(contract liability)~~ primarily relate to the ~~advance~~advance consideration received from customers for which work has not yet been completed. The ~~change~~decrease in ~~this~~the contract liability balance from December 31, ~~2022~~2023 to March 31, ~~2023 increased~~2024 of $30 million was due ~~to amounts received for services not yet performed,~~to revenue recognized during the period, net of ~~revenue recognized.~~new payments received in advance of work performed.

For contracts that have an original duration of one year or less, Centuri uses the practical expedient applicable to such contracts and does not consider/compute an interest component based on the time value of money. Furthermore, because of the short duration of these contracts, Centuri has not disclosed the transaction price for the remaining performance obligations as of the end of each reporting period or when the Company expects to recognize the revenue.

As of March 31, ~~2023,~~2024, Centuri ~~had 62 fixed~~had 53 fixed price contracts with an original duration of more than one year. The aggregate amount of the transaction price allocated to the unsatisfied performance obligations of these contracts as of March 31, ~~2023~~2024 was ~~$458.2~~$277 million. ~~Centuri~~Centuri expects to recognize the remaining performance obligations over approximately the next two ~~years;~~ years; however, the timing of that recognition is largely within the control of the customer, including when the necessary materials required to complete the work are provided by the customer.

Utility infrastructure services contracts receivable consists of the following:

(Thousands of dollars) March 31, 2023 December 31, 2022
Billed on completed contracts and contracts in progress $ 325,528 $ 395,771
Other receivables 1,738 2,569
Contracts receivable, gross 327,266 398,340
Allowance for doubtful accounts (4,708) (4,318)
Contracts receivable, net $ 322,558 $ 394,022

~~Pipeline and Storage Segment:~~

MountainWest Regulated operations revenues on the Condensed Consolidated Statements of Income of the Company include revenue from contracts with customers, which is shown below, disaggregated by categories of sales and service activities. The information for 2023 reflects activity from January 1, 2023 through February 13, 2023 (the last full day of ownership).

Three Months Ended
March 31,
(Thousands of dollars) 2023 2022
Regulated gas transportation and storage revenues $ 34,225 $ 61,977
NGL revenues 441 1,493
Other revenues 466 3,479
Revenue from contracts with customers 35,132 66,949
Other revenues — 44
Total Regulated operations revenues $ 35,132 $ 66,993


(Thousands of dollars)	March 31, 2024		December 31, 2023
Billed on completed contracts and contracts in progress	$	285,896	$	348,021
Other receivables	1,989		1,945
Contracts receivable, gross	287,885		349,966
Allowance for doubtful accounts	(70)		(2,512)
Contracts receivable, net	$	287,815	$	347,454


			20


SOUTHWEST GAS HOLDINGS, INC.						Form 10-Q
SOUTHWEST GAS CORPORATION						March 31, ~~2023~~2024

Note 4 – Common Stock

Shares of the Company’s common stock are publicly traded on the New York Stock Exchange, under the ticker symbol “SWX.” Share-based compensation related to Southwest and Centuri (for award grants prior to 2024 that continue to be subject to time-based vesting) is based on stock awards to be issued in shares of Southwest Gas Holdings, Inc.

~~On April 8, 2021, the Company entered into a Sales Agency Agreement between~~In November 2023, the Company and ~~BNY Mellon Capital Markets, LLC and J.P. Morgan Securities LLC (the “Equity Shelf Program”) for the offer and sale of up to $500 million of common stock from time to time in~~Southwest jointly filed an ~~at-the-market offering program. The shares are issued pursuant to the Company’s~~ automatic shelf registration statement ~~on Form S-3~~ (File No. ~~333-251074)~~333-275774), ~~or “the Universal Shelf.” There was no activity~~ ~~under the Equity Shelf Program during the quarter ended March 31,~~which became effective upon filing. The prior shelf registration expired in December 2023. ~~The following table provides the life-to-date activity under that program through March 31, 2023:~~




~~Gross proceeds~~	$	~~158,180,343~~
~~Less: agent commissions~~	~~(1,581,803)~~
~~Net proceeds~~	$	~~156,598,540~~
~~Number of shares sold~~	~~2,302,407~~
~~Weighted average price per share~~	$	~~68.70~~

~~As of March 31, 2023, the Company had approximately~~ ~~$342 million~~ ~~in common stock available for sale under the program.~~

In March 2023, the Company issued, through a separate prospectus supplement under the Universal Shelf, an aggregate of 4.1 million shares of common stock, at an underwritten public offering price of $60.12 per share, resulting in net proceeds to the Company of $238.4 million, net of an underwriter’s discount of $8.3 million and estimated expensesUpon expiration of the ~~offering. Approximately $140 million (2.3 million shares) of~~prior shelf registration, the ~~offering~~Company’s equity shelf program was ~~purchased by certain funds affiliated with Carl C. Icahn, a significant stockholder beneficially owning more that 10% of the outstanding stock of the Company.~~terminated. The Company ~~used the net proceeds~~intends to ~~repay outstanding amounts under the Company’s credit facility, with the remaining proceeds used to pay off residual amounts outstanding under the loan entered~~enter into ~~in November 2021 in connection with the acquisition of MountainWest and the remainder, for working capital and general corporate purposes.~~a similar program during 2024.

During the three months ended March 31, ~~2023,~~2024, the Company issued approximately ~~54,000~~67,000 shares of common stock through the ~~Restricted Stock/Unit Plan and~~ Omnibus Incentive Plan.

Additionally, during the three months ended March 31, ~~2023,~~2024, the Company issued ~~46,000~~35,000 shares of common stock through the Dividend Reinvestment and Stock Purchase Plan, raising approximately ~~$2.7 million~~.$2.4 million.


			21


SOUTHWEST GAS HOLDINGS, INC.						Form 10-Q
SOUTHWEST GAS CORPORATION						March 31, ~~2023~~2024

Note 5 – Debt

Long-Term Debt

Long-term debt is recognized in the Company’s and Southwest’s Condensed Consolidated Balance Sheets generally at the carrying value of the obligations outstanding. Details surrounding the fair value and individual carrying values of instruments are provided in the table that follows.


			March 31, 2023				December 31, 2022				March 31, 2024		December 31, 2023
			Carrying Amount		Fair Value		Carrying Amount		Fair Value
		Carrying Amount										Carrying Amount		Fair Value	Carrying Amount	Fair Value
(Thousands of dollars)	(Thousands of dollars)
Southwest Gas Corporation:	Southwest Gas Corporation:
Southwest Gas Corporation:
Southwest Gas Corporation:
Debentures:	Debentures:
Notes, 6.1%, due 2041			$	125,000	$	125,376	$	125,000	$	113,184
Notes, 4.05%, due 2032			600,000		552,972		600,000		527,052
Notes, 4.875%, due 2043			250,000		210,990		250,000		195,703
Notes, 3.8%, due 2046			300,000		229,644		300,000		209,169
Notes, 3.7%, due 2028			300,000		282,960		300,000		275,043
Notes, 5.45%, due 2028			300,000		303,159		—		—
Notes, 4.15%, due 2049			300,000		238,821		300,000		218,712
Notes, 2.2%, due 2030			450,000		372,380		450,000		353,763
Notes, 3.18%, due 2051			300,000		198,390		300,000		185,523
Notes, 5.8%, due 2027			300,000		310,653		300,000		305,913
Debentures:
Debentures:
8% Series, due 2026
8% Series, due 2026
8% Series, due 2026	8% Series, due 2026		75,000		80,121		75,000		80,027
Medium-term notes, 7.92% series, due 2027	Medium-term notes, 7.92% series, due 2027		25,000		27,069		25,000		26,840
Medium-term notes, 6.76% series, due 2027	Medium-term notes, 6.76% series, due 2027		7,500		7,803		7,500		7,662
Notes, 5.8%, due 2027
Notes, 3.7%, due 2028
Notes, 5.45%, due 2028
Notes, 2.2%, due 2030
Notes, 4.05%, due 2032
Notes, 6.1%, due 2041
Notes, 4.875%, due 2043
Notes, 3.8%, due 2046
Notes, 4.15%, due 2049
Notes, 3.18%, due 2051
Unamortized discount and debt issuance costs	Unamortized discount and debt issuance costs		(32,893)				(29,471)
			3,299,607				3,003,029
			3,303,672
			3,303,672
			3,303,672
Revolving credit facility and commercial paper
Revolving credit facility and commercial paper
Revolving credit facility and commercial paper	Revolving credit facility and commercial paper		—		—		50,000		50,000
Industrial development revenue bonds:	Industrial development revenue bonds:
Tax-exempt Series A, due 2028
Tax-exempt Series A, due 2028
Tax-exempt Series A, due 2028	Tax-exempt Series A, due 2028		50,000		50,000		50,000		50,000
2003 Series A, due 2038	2003 Series A, due 2038		50,000		50,000		50,000		50,000
2008 Series A, due 2038	2008 Series A, due 2038		50,000		50,000		50,000		50,000
2009 Series A, due 2039	2009 Series A, due 2039		50,000		50,000		50,000		50,000
Unamortized discount and debt issuance costs	Unamortized discount and debt issuance costs		(1,630)				(1,733)
			198,370				198,267
			198,739
			198,739
			198,739
Less: current maturities
Less: current maturities
Less: current maturities	Less: current maturities		—				—
Southwest Gas Corporation total long-term debt, less current maturities	Southwest Gas Corporation total long-term debt, less current maturities		$	3,497,977			$	3,251,296
Southwest Gas Corporation total long-term debt, less current maturities
Southwest Gas Corporation total long-term debt, less current maturities
Southwest Gas Holdings, Inc.:	Southwest Gas Holdings, Inc.:
Southwest Gas Holdings, Inc.:
Southwest Gas Holdings, Inc.:

Centuri secured term loan facility

Centuri secured term loan facility

Centuri secured term loan facility	Centuri secured term loan facility		$	1,002,825	$	997,832	$	1,008,550	$	995,852
Centuri secured revolving credit facility	Centuri secured revolving credit facility		19,212		19,297		81,955		82,315
Other debt obligations	Other debt obligations		119,362		112,863		126,844		118,314
Unamortized discount and debt issuance costs	Unamortized discount and debt issuance costs		(19,869)				(20,789)
Less: current maturities	Less: current maturities		(41,907)				(44,557)
Less: current maturities
Less: current maturities
Southwest Gas Holdings, Inc. total long-term debt, less current maturities	Southwest Gas Holdings, Inc. total long-term debt, less current maturities		$	4,577,600			$	4,403,299
Southwest Gas Holdings, Inc. total long-term debt, less current maturities
Southwest Gas Holdings, Inc. total long-term debt, less current maturities


			22


SOUTHWEST GAS HOLDINGS, INC.						Form 10-Q
SOUTHWEST GAS CORPORATION						March 31, ~~2023~~2024

Southwest has a $400 million credit facility that is scheduled to expire in April 2025. Southwest designates $150 million of associated capacity as long-term debt and the remaining $250 million for working capital purposes. Interest rates for the credit facility are calculated at either the Secured Overnight Financing Rate (“SOFR”) or an “alternate base rate,” plus in each case an applicable margin that is determined based on Southwest’s senior unsecured debt rating. At March 31, ~~2023,~~2024, the applicable margin isis 1.125% for loans bearing interest with reference to SOFR and 0.125% for loans bearing interest with reference to the alternative base rate. At March 31, ~~2023,~~ 2024, no borrowings were outstanding on the ~~long-te~~rmlong-term portion (including under the commercial paper program), nor under the ~~short-term~~short-term portion of the facility.

Centuri has a $1.545 billion secured revolving credit and term loan multi-currency facility. Amounts can be borrowed in either Canadian or U.S. dollars. The revolving credit facility matures on August 27, 2026 and the term loan facility matures on August 27, ~~2028.~~2028. Interest rates for the revolving credit facility and term loan facility are based on either a “base rate,” SOFR ~~plus an applicable margin;~~or the ~~term loan facility is based on LIBOR,~~Canadian Dollar Offered Rate (“CDOR”), plus an applicable margin. The capacity of the line of credit portion of the facility is $400 million; related amounts borrowed and repaid are available to be re-borrowed. The term loan portion of the facility has a limit of ~~$1.145 billion.~~$1.145 billion. The obligations under the credit agreement are secured by present and future ownership interests in substantially all direct and indirect subsidiaries of Centuri, substantially all of the tangible and intangible personal property of each borrower, certain of their direct and indirect subsidiaries, and all products, profits, and proceeds of the foregoing. Centuri’s assets securing the facility at March 31, ~~2023~~2024 totaled ~~$2.4 billion.~~$2.4 billion. At March 31, ~~2023, $1.022~~2024, $1.1 billion in borrowings were outstanding under Centuri’s combined secured revolving credit and term loan facility.

On March 22, 2024, Centuri amended the financial covenants of its revolving credit facility to increase the maximum total net leverage ratio for the fiscal quarter ending March 31, 2024 to a ratio of 5.75 to 1.00, for the fiscal quarter ending June 30, 2024 to a ratio of 6.00 to 1.00, and for the fiscal quarter ending September 30, 2024 to a ratio of 5.75 to 1.00. In addition, this amendment increased the adjusted maximum total net leverage ratio financial covenants, which are applicable in the event that a “Qualified IPO” (as defined in the amendment) is consummated, for each of the fiscal quarters ending March ~~2023, Southwest issued $300~~31, 2024, June 30, 2024, and September 30, 2024. The terms of the Centuri credit facility otherwise remain unchanged. Following the IPO and private placement, Centuri used approximately $316 million ~~aggregate principal amount~~ of ~~5.450% Senior Notes (the “March 2023 Notes”). The notes will mature in March 2028. Southwest used the net~~ proceeds to ~~repay amounts outstanding~~pay down $156 million of debt under ~~its~~the existing line of credit and $160 million of debt under the term loan portion of the facility, ~~and~~with the remainder intended for general corporate purposes.

~~In April 2023,~~ ~~Southwest Gas Holdings, Inc.~~ entered into a $550 million Term Loan Credit Agreement that matures in October 2024. Southwest Gas Holdings, Inc. utilized a majority of the proceeds to make an equity contribution to Southwest. On April 17, 2023, Southwest utilized the equity contribution to repay, in full, amounts outstanding under its ~~$450 million~~ ~~364-day term loan entered into in January 2023 (discussed below), with the remainder of the equity contribution used for working capital and general corporate purposes.~~

Short-Term Debt

Southwest Gas Holdings, Inc. has a $300 million credit facility that is scheduled to expire in December 2026 and is primarily used for short-term financing needs. Interest rates for the credit facility are calculated at either SOFR or the “alternate base rate,” plus in each case an applicable margin. There was ~~$18~~$94 million outstanding under this credit facility as of March 31, ~~2023.~~2024.

In April 2023, Southwest Gas Holdings, Inc. entered into a $550 million Term Loan Credit Agreement (the “Term Loan”) that matures in October 2024. Southwest Gas Holdings, Inc. utilized a majority of the proceeds to make an equity contribution to Southwest.

As indicated above, under Southwest’s $400 million credit facility, no short-term borrowings were outstanding at March 31, ~~2023.~~

~~In March 2022, Southwest amended its $250 million Term Loan (the “March 2021 Term Loan”),~~ extending the maturity date to March 21, 2023 and replacing LIBOR interest rate benchmarks with SOFR interest rate benchmarks. The proceeds were originally used to fund the increased cost of natural gas supply during the month of February 2021, caused by extreme weather conditions in the central U.S. During the first quarter of 2023, the March 2021 Term Loan was repaid in full by use of Southwest’s credit facility, prior to the issuance of the March 2023 Notes, proceeds from which were used to pay down indebtedness then outstanding under the credit facility, as indicated.

On September 26, 2022, Southwest Gas Holdings, Inc. entered into Amendment No. 1 to the 364-day Term Loan Credit Agreement, initially borrowed to fund the acquisition of the equity interests in MountainWest, of which $1.147 billion was outstanding as of December 31, 2022~~. The Credit Agreement initially provided for a $1.6 billion delayed-draw term loan (the “Term Loan Facility”). In connection with the close of~~ ~~the MountainWest sale on February 14, 2023,~~ $1.075 billion of the proceeds were used to pay down the Term Loan Facility. During the first quarter of 2023, the Company paid down the remaining balance of the Term Loan Facility of approximately $72 million.

In January 2023, Southwest entered into a 364-day $450 million term loan agreement. Southwest initially used the proceeds to fund higher than expected natural gas costs for the November 2022 through March 2023 winter period, caused by numerous market forces, including historically low storage levels, unexpected upstream pipeline maintenance events, and cold weather conditions across the western region. As indicated above, the term loan was repaid in full on April 17, 2023.


			23


~~SOUTHWEST GAS HOLDINGS, INC.~~						~~Form 10-Q~~
~~SOUTHWEST GAS CORPORATION~~						~~March 31, 2023~~

~~LIBOR~~

Certain rates established at LIBOR were scheduled to be discontinued after 2021 as part of reference rate reform, while other LIBOR-based rates are scheduled to be discontinued after June 2023. As of March 31, 2023, the Company had $1.003 billion in outstanding borrowings under Centuri’s term loan facility with reference to LIBOR. Southwest and Southwest Gas Holdings, Inc. had no outstanding borrowings or variable rate debt agreements with reference to LIBOR as of March 31, 2023.2024.

Note 6 – Other Comprehensive Income and Accumulated Other Comprehensive Income

The following information presents the Company’s Other comprehensive income (loss), both before and after-tax impacts, within the Condensed Consolidated Statements of Comprehensive Income, which also impact Accumulated other comprehensive income (“AOCI”) in the Condensed Consolidated Balance Sheets and the Condensed Consolidated Statements of Equity.


			23


SOUTHWEST GAS HOLDINGS, INC.						Form 10-Q
SOUTHWEST GAS CORPORATION						March 31, 2024

Related Tax Effects Allocated to Each Component of Other Comprehensive Income (Loss)

Three Months Ended
March 31, 2023 Three Months Ended
March 31, 2022
(Thousands of dollars) Before-
Tax
Amount Tax
(Expense)
or Benefit (1) Net-of-
Tax
Amount Before-
Tax
Amount Tax
(Expense)
or Benefit (1) Net-of-
Tax
Amount
Defined benefit pension plans:
Amortization of prior service cost $ 44 $ (11) $ 33 $ 44 $ (11) $ 33
Amortization of net actuarial (gain)/loss 333 (80) 253 8,705 (2,089) 6,616
Regulatory adjustment (119) 29 (90) (7,268) 1,745 (5,523)
Pension plans other comprehensive income (loss) 258 (62) 196 1,481 (355) 1,126
FSIRS (designated hedging activities):
Amounts reclassified into net income — — — 545 (129) 416
FSIRS other comprehensive income (loss) — — — 545 (129) 416
Total other comprehensive income (loss) - Southwest Gas Corporation 258 (62) 196 2,026 (484) 1,542
Foreign currency translation adjustments:
Translation adjustments 97 — 97 1,247 — 1,247
Foreign currency other comprehensive income (loss) 97 — 97 1,247 — 1,247
Total other comprehensive income (loss) - Southwest Gas Holdings, Inc. $ 355 $ (62) $ 293 $ 3,273 $ (484) $ 2,789

Twelve Months Ended
March 31, 2023 Twelve Months Ended
March 31, 2022
(Thousands of dollars) Before-
Tax
Amount Tax
(Expense)
or Benefit (1) Net-of-
Tax
Amount Before-
Tax
Amount Tax
(Expense)
or Benefit (1) Net-of-
Tax
Amount
Defined benefit pension plans:
Net actuarial gain/(loss) $ 4,079 $ (980) $ 3,099 $ 59,176 $ (14,202) $ 44,974
Amortization of prior service cost 175 (42) 133 763 (183) 580
Amortization of net actuarial (gain)/loss 26,446 (6,348) 20,098 42,153 (10,117) 32,036
Regulatory adjustment (21,083) 5,059 (16,024) (85,887) 20,614 (65,273)
Pension plans other comprehensive income (loss) 9,617 (2,311) 7,306 16,205 (3,888) 12,317
FSIRS (designated hedging activities):
Amounts reclassified into net income — — — 2,175 (520) 1,655
FSIRS other comprehensive income (loss) — — — 2,175 (520) 1,655
Total other comprehensive income (loss) - Southwest Gas Corporation 9,617 (2,311) 7,306 18,380 (4,408) 13,972
Foreign currency translation adjustments:
Translation adjustments (7,283) — (7,283) 444 — 444
Foreign currency other comprehensive income (loss) (7,283) — (7,283) 444 — 444
Total other comprehensive income (loss) - Southwest Gas Holdings, Inc. $ 2,334 $ (2,311) $ 23 $ 18,824 $ (4,408) $ 14,416


	Three Months Ended March 31, 2024						Three Months Ended March 31, 2023
(Thousands of dollars)	Before- Tax Amount		Tax (Expense) or Benefit (1)		Net-of- Tax Amount		Before- Tax Amount		Tax (Expense) or Benefit (1)		Net-of- Tax Amount
Defined benefit pension plans:
Amortization of prior service cost	$	44	$	(11)	$	33	$	44	$	(11)	$	33
Amortization of net actuarial (gain)/loss	1,910		(459)		1,451		333		(80)		253
Regulatory adjustment	(1,448)		348		(1,100)		(119)		29		(90)
Total other comprehensive income (loss) - Southwest Gas Corporation	506		(122)		384		258		(62)		196
Foreign currency translation adjustment	(2,819)		—		(2,819)		97		—		97

Total other comprehensive income (loss) - Southwest Gas Holdings, Inc.	$	(2,313)	$	(122)	$	(2,435)	$	355	$	(62)	$	293

(1)Tax amounts are calculated using a 24% rate. The Company has elected to indefinitely reinvest, in Canada, the earnings of Centuri’s Canadian subsidiaries, thus precluding deferred taxes on such earnings. As a result of this assertion, and no repatriation of earnings anticipated, the Company is not recognizing a tax effect or presenting a tax expense or benefit for currency translation adjustments reported in Other comprehensive income (loss).


			24


~~SOUTHWEST GAS HOLDINGS, INC.~~						~~Form 10-Q~~
~~SOUTHWEST GAS CORPORATION~~						~~March 31, 2023~~

The following table represents a rollforward of AOCI, presented on the Company’s Condensed Consolidated Balance Sheets and its Condensed Consolidated Statements of Equity:




		Defined Benefit Plans						Foreign Currency Items							Defined Benefit Plans							Foreign Currency Items
(Thousands of dollars)	(Thousands of dollars)	Before-Tax		Tax (Expense) Benefit (3)		After-Tax			Before-Tax		Tax (Expense) Benefit		After-Tax			AOCI		(Thousands of dollars)	Before-Tax	Tax (Expense) Benefit (3)	After-Tax		Before-Tax	Tax (Expense) Benefit	After-Tax	AOCI
Beginning Balance AOCI December 31, 2022		$	(50,342)	$	12,081	$	(38,261)		$	(5,981)	$	—	$	(5,981)		$	(44,242)
Translation adjustments		—		—		—			97		—		97			97
Other comprehensive income (loss) before reclassifications		—		—		—			97		—		97			97
Beginning Balance AOCI December 31, 2023
Foreign currency translation adjustment
Amortization of prior service cost (1)	Amortization of prior service cost (1)	44		(11)		33			—		—		—			33
Amortization of net actuarial loss (1)	Amortization of net actuarial loss (1)	333		(80)		253			—		—		—			253
Regulatory adjustment (2)	Regulatory adjustment (2)	(119)		29		(90)			—		—		—			(90)
Net current period other comprehensive income (loss) attributable to Southwest Gas Holdings, Inc.	Net current period other comprehensive income (loss) attributable to Southwest Gas Holdings, Inc.	258		(62)		196			97		—		97			293
Ending Balance AOCI March 31, 2023		$	(50,084)	$	12,019	$	(38,065)		$	(5,884)	$	—	$	(5,884)		$	(43,949)
Ending Balance AOCI March 31, 2024

(1)These AOCI components are included in the computation of net periodic benefit cost (see Note 2 – Components of Net Periodic Benefit Cost for additional details).

(2)The regulatory adjustment represents the portion of the activity above that is expected to be recovered through rates in the future (the related regulatory asset is included in Deferred charges and other assets on the Company’s Condensed Consolidated Balance Sheets).

(3)Tax amounts are calculated using a 24% rate.

The following table represents a rollforward of AOCI, presented on Southwest’s Condensed Consolidated Balance Sheets:


		Defined Benefit Plans							Defined Benefit Plans
(Thousands of dollars)	(Thousands of dollars)	Before-Tax		Tax (Expense) Benefit (6)		After-Tax		(Thousands of dollars)	Before-Tax	Tax (Expense) Benefit (6)	After-Tax
Beginning Balance AOCI December 31, 2022		$	(50,342)	$	12,081	$	(38,261)
Beginning Balance AOCI December 31, 2023
Amortization of prior service cost (4)	Amortization of prior service cost (4)	44		(11)		33
Amortization of net actuarial loss (4)	Amortization of net actuarial loss (4)	333		(80)		253
Regulatory adjustment (5)	Regulatory adjustment (5)	(119)		29		(90)
Net current period other comprehensive income attributable to Southwest Gas Corporation	Net current period other comprehensive income attributable to Southwest Gas Corporation	258		(62)		196
Ending Balance AOCI March 31, 2023		$	(50,084)	$	12,019	$	(38,065)
Ending Balance AOCI March 31, 2024

(4)These AOCI components are included in the computation of net periodic benefit cost (see Note 2 – Components of Net Periodic Benefit Cost for additional details).

(5)The regulatory adjustment represents the portion of the activity above that is expected to be recovered through rates in the future (the related regulatory asset is included in Deferred charges and other assets on Southwest’s Condensed Consolidated Balance Sheets).

(6)Tax amounts are calculated using a 24% rate.


			24


SOUTHWEST GAS HOLDINGS, INC.						Form 10-Q
SOUTHWEST GAS CORPORATION						March 31, 2024

The following table represents amounts (before income tax impacts) included in AOCI (in the tables above), that have not yet been recognized in net periodic benefit cost:

(Thousands of dollars) March 31, 2023 December 31, 2022
Net actuarial loss $ (359,780) $ (360,113)
Prior service cost (1,309) (1,353)
Less: amount recognized in regulatory assets 311,005 311,124
Recognized in AOCI $ (50,084) $ (50,342)


			25


(Thousands of dollars)	March 31, 2024		December 31, 2023
Net actuarial loss	$	(360,058)	$	(361,968)
Prior service cost	(1,134)		(1,178)
Less: amount recognized in regulatory assets	308,346		309,794
Recognized in AOCI	$	(52,846)	$	(53,352)

Note 7 – Segment Information

The Company ~~had three~~has two reportable ~~segments during the first quarter, prior to the MountainWest sale.~~segments. Southwest comprises the natural gas distribution segment and Centuri comprises the utility infrastructure services ~~segment, and MountainWest comprised the pipeline and storage~~ segment. As a result of the MountainWest sale in February 2023 (previously comprising the pipeline and storage segment), the information for the three months ended March 31, 2023 presented below for MountainWest reflects activity from January 1, 2023 through February 13, 2023 (the last full day of its ownership by the Company).

Centuri accounts for services provided to Southwest at contractual prices. Accounts receivable for these services, which are not eliminated during consolidation, are presented in the table below:

(Thousands of dollars)

March 31, 2023

December 31, 2022

(Thousands of dollars)

March 31, 2024

December 31, 2023

Centuri accounts receivable for services provided to Southwest

14,966

18,067

In order to reconcile ~~(below)~~the table below to net income (loss) as disclosed in the Condensed Consolidated Statements of Income, an Other column is included associated with impacts of corporate and administrative activities related to Southwest Gas Holdings, Inc. The financial information pertaining to the natural gas distribution, utility infrastructure services, and pipeline and storage segments are as follows:

(Thousands of dollars) Natural Gas
Distribution Utility Infrastructure
Services Pipeline and Storage Other Total
Three Months Ended March 31, 2023
Revenues from external customers $ 914,879 $ 624,489 $ 35,132 $ — $ 1,574,500
Intersegment revenues — 28,804 — — 28,804
Total $ 914,879 $ 653,293 $ 35,132 $ — $ 1,603,304
Segment net income (loss) $ 134,696 $ (11,872) $ (16,288) $ (60,625) $ 45,911
Three Months Ended March 31, 2022
Revenues from external customers $ 676,539 $ 495,544 $ 66,993 $ — $ 1,239,076
Intersegment revenues — 28,333 — — 28,333
Total $ 676,539 $ 523,877 $ 66,993 $ — $ 1,267,409
Segment net income (loss) $ 111,795 $ (23,486) $ 16,930 $ (9,061) $ 96,178


(Thousands of dollars)	(Thousands of dollars)	Natural Gas Distribution		Utility Infrastructure Services		Pipeline and Storage		Other		Total		(Thousands of dollars)	Natural Gas Distribution	Utility Infrastructure Services	Pipeline and Storage	Other	Total
Twelve Months Ended March 31, 2023
Three Months Ended March 31, 2024
Revenues from external customers
Revenues from external customers
Revenues from external customers	Revenues from external customers	$	2,173,409	$	2,754,614	$	232,752	$	—	$	5,160,775
Intersegment revenues	Intersegment revenues	—		135,129		—		—		135,129
Total	Total	$	2,173,409	$	2,889,743	$	232,752	$	—	$	5,295,904
Segment net income (loss)	Segment net income (loss)	$	177,281	$	13,679	$	(316,951)	$	(127,566)	$	(253,557)

Twelve Months Ended March 31, 2022
Three Months Ended March 31, 2023
Three Months Ended March 31, 2023
Three Months Ended March 31, 2023
Revenues from external customers
Revenues from external customers
Revenues from external customers	Revenues from external customers	$	1,676,397	$	2,212,087	$	66,993	$	—	$	3,955,477
Intersegment revenues	Intersegment revenues	—		106,476		—		—		106,476
Total	Total	$	1,676,397	$	2,318,563	$	66,993	$	—	$	4,061,953
Segment net income (loss)	Segment net income (loss)	$	180,215	$	17,793	$	16,930	$	(35,274)	$	179,664

The corporate and administrative activities for Southwest Gas Holdings, Inc. in the ~~three-month period ended~~three months ending March 31, ~~2023~~2024 include among other things, additional amounts related to commitments under the sale agreement with Williams in regard to MountainWest, including a charge of $28.4 million from the post-closing rate case settlement agreement for MountainWest Overthrust Pipeline (pending Federal Energy Regulatory Commission (the “FERC” approval)); and an additional $21 million


			26

reflects the final accrued post-closing payment of $7.4 million related to cash and net working capital balances above/below a contract benchmark, with the remaining charge associated with other changes in the assets and liabilities that were not subject to post-closing payment true-up provisions. The post-closing payment of $7.4 million will effectively return approximately the same amount initially paid by Williams to the Company at closing. Other corporate and administrative amounts during this same quarter also reflect residual costs associated with or as a result of the MountainWest sale, as well as $12$11 million of interest expense, ~~primarily~~including amounts incurred under the ~~loan~~$550 million Term Loan entered into ~~by Southwest Gas Holdings, Inc.~~ in ~~November 2021 in connection~~April 2023, along with ~~the acquisition of MountainWest prior to it being paid in full in March 2023 (including $2.5~~$2.7 million in debt issuance costs written off when the debt was repaid). The twelve-month period ended March 31, 2023 included more than $47 million of interest expense under the aforementioned MountainWest acquisition loan, the other items noted above, as well as $35 million in combined costs associated with ~~stockholder activism and~~ the ~~associated proxy contest,~~planned separation of Centuri, offset by tax benefits experienced during the May 2022 settlement with the Icahn group, and costs of a strategic review initiative initiated in 2022. The amounts related to the MountainWest sale, including the rate case settlement, and post-closing adjustments, are included in Goodwill impairment and loss on sale on the Company’s Condensed Consolidated Statement of Income.quarter.

Note 8 - Dispositions

Dispositions

In December 2022, the Company announced that the Board unanimously determined to take strategic actions to simplify the Company’s portfolio of businesses. These actions included entering into a definitive agreement to sell 100% of MountainWest in an all-cash transaction to Williams for $1.5 billion in total enterprise value, subject to certain adjustments. The MountainWest sale ~~closed on~~was completed in February ~~14,~~ 2023. ~~The Company is expected to provide certain services to Williams under a transition services agreement for a brief period, generally not beyond six months from the sale closing date.~~ Additionally, the Company determined it ~~will~~would pursue a ~~spin-off~~separation of Centuri to form a new independent publicly traded utility infrastructure services company. ~~The Centuri spin-off is currently expected to be completed by the fourth quarter~~

As discussed in Note 1 - Background, Organization, and Summary of ~~2023 or the end of the first quarter of~~Significant Accounting Policies, in April 2024, ~~and to be tax free to~~ the Company and ~~its stockholders for U.S. federal income tax purposes. The separation~~Centuri Holdings, Inc. announced the completion of ~~Centuri will be subject to, among other things, finalizing the transaction structure, final approval by the Board, approval by the Arizona Corporation Commission (the “ACC”), the receipt~~an IPO of ~~a favorable private letter ruling by the IRS relating to the tax-free nature~~12,400,000 shares of ~~the transaction, and the effectiveness of~~Centuri’s common stock at a ~~registration statement to be filed with the SEC. The application for the private letter ruling was filed with the IRS in March 2023 and the application to the ACC was filed in April 2023.~~

The fair value of the MountainWest assets held-for-sale was previously estimated based on the preliminary closing statement and subject to certain adjustments, including a post-closing payment between the parties related to final working capital balances. The amount of the post-closing payment was finalized in May 2023, prior to the issuance of these financial statements. The Company recognized an additional loss on sale of approximately $21 million during the quarter ended March 31, 2023. This reflects the accrued post-closing payment of $7.4 million related to cash and net working capital balances above/below a contractual benchmark, with the remaining charge associated with other changes in the assets and liabilities that were not subject to post-closing payment true-up provisions. The post-closing payment of $7.4 million will effectively return approximately the same amount initially paid by Williams to the Company at closing.

~~As referred to in~~ ~~Note 7 – Segment Information~~, on September 22, 2022, the FERC issued an order initiating an investigation, pursuant to section 5 of the Natural Gas Act, to determine whether rates charged by MountainWest Overthrust Pipeline, LLC, a subsidiary of MountainWest, were just and reasonable and setting the matter for hearing (the “Section 5 Rate Case”). Unless earlier settled by the parties, a hearing on the matter was to commence on August 1, 2023 with an initial decision from the presiding administrative law judge due by November 14, 2023. Under the terms of the purchase and sale agreement entered into in connection with the MountainWest sale, the Company is obligated, for a period of four years following the closing of the MountainWest sale, to indemnify Williams and MountainWest for any damages and liabilities resulting from the Section 5 Rate Case, including any reduction to the current applicable rate, up to a cap of $75 million. Williams agreed not to enter into any settlement of the Section 5 Rate Case that would result in damages being paid by the Company under the indemnity arrangement without prior written consent of the Company. In March 2023, the parties agreed to a settlement, which is pending approval by the FERC. As a result, the Company recorded an additional estimated loss of $28.4 million from the disposal of MountainWest in the first quarter of 2023, which is included in Goodwill impairment and loss on sale in the Company’s Condensed Consolidated Statement of Income. Other contingent commitments were part of the agreement as well, which are currently expected to be immaterial.


			2725

price of $21.00 per share. Centuri granted the underwriters a 30-day option to purchase up to an additional 1,860,000 shares of its common stock, which was exercised. In addition, Centuri announced the concurrent private placement of an additional 2,591,929 shares at a price equal to the IPO price. Centuri’s common stock is listed on the New York Stock Exchange under the symbol “CTRI” and began trading on April 18, 2024. The net proceeds to Centuri from the IPO and the concurrent private placement, after deducting underwriting discounts and commissions of $18 million and estimated offering expenses, were approximately $329 million. Centuri used the proceeds to repay a portion (approximately $316 million) of outstanding indebtedness under its revolving credit and term loan facility, with the remainder for general corporate purposes.

After completion of the IPO, and above undertakings, the Company continues to own approximately 81.0% of all ownership interests in Centuri. The Company intends to further reduce its ownership in future periods through sales of its remaining Centuri shares into the market, a distribution of Centuri shares to Company stockholders, or an exchange of Centuri shares for Southwest Gas Holdings, Inc. shares, or a combination thereof. The Company entered into several agreements with Centuri Holdings, Inc. in connection with the IPO and the planned separation, providing a framework for the relationship between the Company and Centuri after the IPO.


			26

ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Southwest Gas Holdings, Inc. is a holding company that owns all of the shares of common stock of Southwest Gas Corporation (“Southwest” or the “natural gas distribution” segment), and through the first quarter of 2024 all of the shares of common stock of Centuri Group, Inc. ~~(“Centuri,” or the~~(the “utility infrastructure services” ~~segment), and until February 14, 2023, all of the common stock of MountainWest Pipelines Holding Company (“MountainWest,” or the “pipeline and storage”~~ segment). Southwest Gas Holdings, Inc. and its subsidiaries are collectively referred to as the “Company.” References to “Centuri” relate to Centuri Group, Inc., for earlier periods, or more recently, to Centuri Holdings, Inc,

In December 2022, the Company announced that its Board of Directors (the “Board”) unanimously determined to take strategic actions to simplify the Company’s portfolio of businesses. These actions included entering into a definitive agreement to sell 100% of MountainWest in an all-cash transaction ~~to Williams Partners Operating LLC (“Williams”) for $1.5 billion in total enterprise value, subject to certain adjustments (collectively, the “MountainWest sale”). The MountainWest sale~~that closed on February 14, 2023. Additionally, the Company determined it ~~will~~would pursue a ~~spin-off~~separation of Centuri ~~(the “Centuri spin-off”),~~ to form a new independent publicly traded utility infrastructure services company.

In April 2024, the Company and Centuri Holdings, Inc. announced the completion of an initial public offering (“IPO”) of Centuri’s common stock, with the issuance of 14,260,000 shares ($0.01 par value) at a price of $21.00 per share, along with a concurrent private placement of 2,591,929 shares, at a price equal to the IPO price, with Icahn Partners LP and Icahn Partners Master Fund LP, investment entities associated with Carl C. Icahn. The Company owns approximately 81% of Centuri ~~spin-off is currently expected to be completed in the fourth quarter of 2023 or~~following these events. Through the first quarter of 2024 and leading up to the IPO, Centuri continued to be ~~tax free~~a wholly owned subsidiary of Southwest Gas Holdings, Inc. The net proceeds to Centuri from the Company and its stockholders for U.S. federal income tax purposes. The Centuri spin-off will be subject to, among other things, finalizing the transaction structure, final approval by the Board, approval by the Arizona Corporation Commission (the “ACC”), the receipt of a favorable Internal Revenue Service (“IRS”) private letter ruling relating to the tax-free nature of the transaction,IPO and the ~~effectiveness~~concurrent private placement totaled approximately $329 million, including optional purchase of IPO shares from underwriters. The Company intends to further reduce its ownership interest in future periods through sales of its remaining Centuri shares into the market, a ~~registration statement that will be filed with the U.S. Securities and Exchange Commission (the “SEC”). The application~~distribution of Centuri shares to Company stockholders, or an exchange of Centuri shares for ~~the private letter ruling was filed with the IRS in March 2023 and the application to the ACC was filed in April 2023. See~~ ~~Note 8 - Dispositions~~ ~~for more information.~~Southwest Gas Holdings, Inc. shares, or a combination thereof.

Our business includes Southwest, which is engaged in the business of purchasing, distributing, and transporting natural gas for customers in portions of Arizona, Nevada, and California. Southwest is the largest distributor of natural gas in Arizona and Nevada, and also distributes and transports natural gas for customers in portions of California. Additionally, through its subsidiaries, Southwest operates two regulated interstate pipelines serving portions of ~~Southwest’s service territories.~~Nevada and California. Southwest makes investments in infrastructure to support customer demand associated with population growth and economic development activity and the safe and reliable operation of its system through adherence to integrity management programs.

As of March 31, ~~2023,~~2024, Southwest had ~~2,206,000~~2,235,000 residential, commercial, industrial, and other natural gas customers, of which ~~1,182,000~~1,197,000 customers were located in Arizona, ~~819,000~~832,000 in Nevada, and ~~205,000~~206,000 in California. Over the past twelve months, first-time meter sets were approximately ~~42,000,~~40,000, compared to ~~38,000~~42,000 for the twelve months ended March ~~2022.~~2023. ~~Residential~~Residential and small commercial customers represented over 99% of thethe total customer base. During the twelve months ended March 31, ~~2023,~~ 2024, 54% of operating margin (Regulated operations revenues less the net cost of gas sold) was earned in Arizona, ~~35%~~33% in Nevada, and ~~11%~~13% in ~~California.~~California. During this same period, Southwest earned ~~84%~~86% of its operating margin from residential and small commercial customers, 5%4% from other sales customers, and ~~11%~~10% from transportation customers. These patterns are expected to remain materially consistent for the foreseeable future.

Southwest recognizes operating revenues from the distribution and transportation of natural gas (and related services) to customers. Operating margin is a financial measure defined by management as Regulated operations revenues less the net cost of gas sold. However, operating margin is not specifically defined in accounting principles generally accepted in the United States (“U.S. GAAP”). Thus, operating margin is considered a non-GAAP measure. Management uses this financial measure because Regulated operations revenues include the net cost of gas sold, which is a tracked cost that is passed through to customers without markup under purchased gas adjustment (“PGA”) mechanisms. Fluctuations in the net cost of gas sold impact revenues on a dollar-for-dollar basis, but do not impact operating margin or operating income. Therefore, management believes operating margin provides investors and other interested parties with useful and relevant information to analyze Southwest’s financial performance in a rate-regulated environment. The principal factors affecting changes in operating margin are general rate relief (including impacts of infrastructure trackers) and customer growth. Commission decisions on the amount and timing of relief may impact our earnings. Refer to the Summary Operating Results table below for a reconciliation of gross margin to operating margin, and refer to Rates and Regulatory Proceedings in this Management’s Discussion and Analysis, for details of various rate proceedings.

The demand for natural gas is seasonal, with greater demand in the colder winter months and decreased demand in the warmer summer months. All of Southwest’s service territories have decoupled rate structures (alternative revenue programs), which are designed to eliminate the direct link between volumetric sales and revenue, thereby mitigating the impacts of ~~unusual~~ weather variability and conservation on operating margin, allowing Southwest to pursue energy efficiency initiatives. Nearly all of our


			27

customers, and resulting revenue and margin, are included as part of mechanisms that reduce the impact of weather and volume variability on our earnings.

Centuri is a strategic infrastructure services company that partners with regulated utilities to build and maintain the energy network that powers millions of homes and businesses across the United States (“U.S.”) and Canada. With ~~an unwavering~~a commitment to serve as long-term partners to customers and communities, Centuri’s employees enable regulated utilities to safely and reliably deliver natural gas and electricity, as well as achieve their goals for environmental sustainability. Centuri


			28

operates in 8387 primary locations across 45 states and provinces in the U.S. and Canada. ~~Centuri~~It operates in the U.S., primarily as NPL, Neuco, Linetec, and Riggs Distler, and in Canada, primarily as NPL Canada.

Utility infrastructure services activity can be impacted by changes in infrastructure replacement programs of utilities, weather, and local and federal regulation (including tax rates and incentives). Utilities continue to implement or modify system integrity management programs to enhance safety pursuant to federal and state mandates. These programs have resulted in multi-year utility system replacement projects throughout the U.S. Likewise, there has been similar attention placed on electric grid modernization through national infrastructure legislation and related initiatives. The Department of Energy estimates more than 70% of the nation’s grid transmission lines and power transformers are over 25 years old, creating vulnerability exacerbated by seasonal storm and extreme weather events.Generally, Centuri revenues are lowest during the first quarter of the year due to less favorable winter weather conditions. Revenues typically improve as more favorable weather conditions occur during the summer and fall months. In cases of severe weather, such as following a regional storm, Centuri may be engaged to perform restoration activities related to above-ground utility infrastructure, and related results impacts are not solely within the control of management. In addition, in certain circumstances, such as with large bid contracts (especially those of a longer duration), or unit-price contracts with revenue caps, results may be impacted by differences between costs incurred and those anticipated when the work was originally bid. Work awarded, or failing to be awarded, by individual large customers can impact operating results.

MountainWest, which was sold on February 14, 2023, is an interstate natural gas transmission pipeline company that provides transportation and underground storage services to customers in Utah, Wyoming, and Colorado. During the period of ownership by the Company, its operations included a substantial portion of its revenue being derived from reservation charges, with variable rates also included as part of its primarily rate-regulated rate structures.

All of our businesses may be impacted by economic conditions that impact businesses generally, such as inflationary impacts on goods and services consumed in the business, rising interest rates, labor markets and costs (including in regard to contracted or professional services), and the availability of those resources. Certain of these impacts may be more predominant in certain of our operations, such as with regard to fuel costs for work equipment and skilled/trade labor costs at Centuri.

This Management’s Discussion and Analysis (“MD&A”) of Financial Condition and Results of Operations should be read in conjunction with the unaudited condensed consolidated financial statements and notes thereto included in this Quarterly Report on Form 10-Q and the audited financial statements and notes thereto, as well as the MD&A included in the ~~2022~~2023 Annual Report to Stockholders, which is incorporated by reference into Southwest’s and the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, ~~2022 (the “2022 Form 10-K),~~2023, in addition to the Risk Factors included in these documents, and as updated from time to time.


			2928

Executive Summary

The items discussed in this Executive Summary are intended to provide an overview of the results of the Company’s and Southwest’s operations and are covered in greater detail in later sections of ~~the~~ MD&A.

Summary Operating Results

Period Ended March 31,
Three Months Twelve Months
(In thousands, except per share amounts) 2023 2022 2023 2022
Contribution to net income (loss)
Natural gas distribution $ 134,696 $ 111,795 $ 177,281 $ 180,215
Utility infrastructure services (11,872) (23,486) 13,679 17,793
Pipeline and storage (16,288) 16,930 (316,951) 16,930
Corporate and administrative (60,625) (9,061) (127,566) (35,274)
Net income (loss) $ 45,911 $ 96,178 $ (253,557) $ 179,664
Weighted average common shares 68,265 60,737 67,413 59,919
Basic earnings (loss) per share
Consolidated $ 0.67 $ 1.58 $ (3.76) $ 3.00
Natural Gas Distribution
Reconciliation of Gross Margin to Operating Margin (Non-GAAP measure)
Utility Gross Margin $ 259,364 $ 233,882 $ 597,222 $ 571,051
Plus:
Operations and maintenance (excluding Admin. & General) expense 79,696 73,422 317,344 276,525
Depreciation and amortization expense 74,650 72,114 265,579 256,814
Operating margin $ 413,710 $ 379,418 $ 1,180,145 $ 1,104,390


	Period Ended March 31,
	Three Months
(In thousands, except per share amounts)	2024		2023
Contribution to net income
Natural gas distribution	$	135,825	$	134,696
Utility infrastructure services	(36,230)		(11,872)
Pipeline and storage	—		(16,288)
Corporate and administrative	(11,858)		(60,625)
Net income	$	87,737	$	45,911

Weighted average common shares	71,728		68,265
Basic earnings per share
Consolidated	$	1.22	$	0.67

Natural Gas Distribution
Reconciliation of Gross Margin to Operating Margin (Non-GAAP measure)
Utility Gross Margin	$	256,808	$	259,364
Plus:
Operations and maintenance (excluding Admin. & General) expense	81,305		79,696
Depreciation and amortization expense	84,823		74,650
Operating margin	$	422,936	$	413,710

1st Quarter ~~2023~~2024 Overview

Southwest Gas Holdings highlights include the following:

•~~Completed~~In April 2024, completed the ~~MountainWest sale~~IPO of Centuri at a price of $21.00 per share, along with a concurrent private placement; net proceeds were approximately $329 million and ~~paid down the remaining balance of the~~were primarily utilized to repay amounts under Centuri’s term loan ~~used to initially fund the MountainWest acquisition~~and revolving credit facility

•Corporate and administrative expenses include ~~additional loss on sale of MountainWest, including $28.4~~$11 million ~~MountainWest Overthrust Pipeline settlement (pending FERC approval),~~in interest expense related to borrowings and ~~interest on the aforementioned MountainWest acquisition term loan~~

•~~Issued 4.1~~$2.7 million ~~shares of common stock for net proceeds of $238.4 million~~in Centuri separation costs

Natural gas distribution highlights include the following:

•~~42,000~~40,000 first-time meters sets occurred over the past 12 months

•Operating margin increased ~~$34~~ $9 million in the first quarter of ~~2023,~~2024, including remaining Arizona rate relief and California attrition adjustments

•In April 2024, annual revenue increase of ~$59 million was approved in Nevada, including an increase in the allowed return on equity (9.5%) and a capitalization structure reflective of 50% equity

•Filed Arizona and Great Basin Gas Transmission Company general rate cases requesting to increase revenues by approximately $126 million and $16 million, respectively

•Operations and maintenance expenses were relatively flat between comparative periods, primarily as a result of cost discipline

•$~~192~~191 million capital investment during the ~~quarter~~

•~~COLI results increased~~ ~~$4.4 million~~ ~~compared to the prior-year~~ quarter

Utility infrastructure services highlights include the following:

•~~Record revenues~~Revenues of ~~$653~~$528 million in the first quarter of ~~2023, an increase~~2024, a decrease of ~~$129~~$125.3 million, or ~~25%~~19%, compared to the first quarter of ~~2022~~

•~~Signed over $311 million of~~2023 (which included favorable weather and more offshore wind ~~and large gas customer contracts~~

•~~Costs continued to be impacted by inflation, including higher fuel, subcontractor, and equipment rental costs~~

work, as well more storm restoration work)


			3029

•Operating loss of $21.9 million in the first quarter of 2024, a decrease of $33.7 million, compared to the first quarter 2023 operating income

•In April 2024, paid down $316 million of debt from proceeds of the successful IPO

Results of Natural Gas Distribution

Quarterly Analysis


			Three Months Ended March 31,
		Three Months Ended March 31,								Three Months Ended March 31,
(Thousands of dollars)	(Thousands of dollars)		2023		2022		(Thousands of dollars)	2024	2023
Regulated operations revenues	Regulated operations revenues		$	914,879	$	676,539
Net cost of gas sold	Net cost of gas sold		501,169		297,121
Operating margin	Operating margin		413,710		379,418
Operations and maintenance expense	Operations and maintenance expense		131,188		119,636
Depreciation and amortization	Depreciation and amortization		74,650		72,114
Taxes other than income taxes	Taxes other than income taxes		22,740		21,652
Operating income	Operating income		185,132		166,016
Other income (deductions)			18,443		1,315
Other income
Net interest deductions	Net interest deductions		(38,622)		(26,610)
Income before income taxes	Income before income taxes		164,953		140,721
Income tax expense	Income tax expense		30,257		28,926
Contribution to consolidated results	Contribution to consolidated results		$	134,696	$	111,795

Results from natural gas distribution ~~operatio~~nsoperations improved ~~$23~~ $1.1 million ~~betwe~~en between the first quarters of ~~2023~~2024 and ~~2022.~~2023. The improvement was primarily due to an increase in Operating margin and ~~Other income (deductions),~~decrease in Net interest deductions, offset by an increase in ~~Operations and maintenance,~~ Depreciation and ~~amortization, and Net interest deductions.~~amortization.

Operating margin increased ~~$34.3~~$9.2 million quarter over quarter. Approximately $5 million of incremental margin was attributable to customer growth, including ~~42,000~~40,000 first-time meter sets during the last twelve months. Combined rate relief in Arizona and California added approximately ~~$14~~$10 million of ~~combined~~incremental margin. ~~Amounts collected from customers~~Increases in recoveries associated with ~~previously unrecovered Vintage Steel Pipe (“VSP”) and Customer-Owned Yard Line (“COYL”)~~regulatory programs ~~in Arizona ($4 million)~~of $6.5 million also contributed to the ~~improvement. Additionally,~~increase; an associated comparable increase is also reflected in amortization expense between periods (discussed below). Offsetting these increases was an $8 million out-of-period ~~adjusting entry~~gas cost adjustment in the ~~current~~prior-year first quarter, ~~was made, which reduced Net~~and $4 million in higher 2024 gas cost ~~of gas sold (See~~ ~~Basis of Presentation~~used in ~~Note 1 – Background, Organization, and Summary of Significant Accounting Policies~~ ~~in this Quarterly Report on Form 10-Q). Other differences include customer-provided fuel required for pipeline~~ operations ~~(offset~~that is offset in Operations and maintenance ~~expense), and~~expense. The remaining variance primarily relates to changes in miscellaneous revenue and ~~margin from~~ customers outside of the decoupling ~~mechanisms.~~mechanism.

Operations and maintenance expense ~~increased $11.6~~decreased $0.3 million (less than 1%) between quarters ~~including approximately $4~~due to the change in the cost of fuel used in operations ($4 million discussed above), which was mostly offset by increases in ~~fuel-related~~employee-related labor and benefit costs. Cost containment of information technology-related outside services was mostly offset by increased costs ~~($3 million of which is customer-provided fuel~~ for pipeline ~~operations, discussed above), $1.7 million~~integrity management programs. Regulatory programs/mechanisms, however, such as those in ~~combined~~place for incremental leak survey in Nevada and ~~line locating costs, $2.6 million primarily related to outside services/contractor costs~~uncollectible residential customer account balances in ~~various areas of the business,~~California, as well as ~~increases~~deployment of resources to capital projects, where applicable, reduce amounts that might otherwise be reflected in ~~insurance related claims ($1 million).~~expense.

Depreciation and amortization ~~expense~~ expense increased ~~$2.5~~$10.2 million, or 4%14%, ~~betwee~~nbetween quarters, ~~primarily d~~ue toreflective of a ~~$533~~$674 million, or 6%7%, increase in average gas plant in service since the corresponding first quarter of ~~2022, offset by $647,000~~2023; $6.5 million in ~~reduced~~higher amortization ~~expense related~~associated with recovery of regulatory program balances substantially contributed to ~~regulatory account balances.~~the increase. The increase in plant was attributable to pipeline capacity reinforcement work, franchise requirements, scheduled pipe replacement activities, and new infrastructure.

Other ~~income increased $17~~income decreased $0.3 million. Interest income ~~increased $9.7~~declined $2.7 million between quarters ~~related~~primarily reflecting a reduction to carrying charges associated with regulatory account balances, notably, deferred purchased gas cost balances, which ~~increased~~decreased from ~~$368~~$970 million ~~existing~~ as of March 31, ~~2022~~2023 to ~~$970~~$199 million ~~existing~~ as of March 31, ~~2023. The non-service-related components of employee pension and other postretirement benefit costs decreased $5.3 million between quarters. Southwest also recognized a $4.4~~2024. This decrease was offset by an $1.8 million increase in ~~COLI results~~the equity portion of the allowance for funds used during construction and a $1.2 million increase in ~~the current quarter compared to the comparable quarter in the prior year.~~values underlying company-owned life insurance (“COLI”) policies between periods.


			30

Net interest deductions ~~increased $12~~ decreased $2.2 million in the first quarter of ~~2023,~~2024, as compared to the prior-year quarter, primarily due to ~~interest associated with $600~~the payoff in April 2023 of a $450 million term loan, partially offset by the impacts of ~~Senior Notes issued in March 2022, $300 million of Senior Notes issued in December 2022, and~~ $300 million of Senior Notes issued in March 2023. ~~Additionally, increased interest resulted from an increase in short-term debt, including a $450 million term loan issued in January 2023 (paid off in full in April 2023).~~


			31

~~Results of Natural Gas Distribution~~

~~Twelve-Month Analysis~~

Twelve Months Ended March 31,
(Thousands of dollars) 2023 2022
Regulated operations revenues $ 2,173,409 $ 1,676,397
Net cost of gas sold 993,264 572,007
Operating margin 1,180,145 1,104,390
Operations and maintenance expense 503,480 452,051
Depreciation and amortization 265,579 256,814
Taxes other than income taxes 84,285 81,308
Operating income 326,801 314,217
Other income (deductions) 10,244 (3,794)
Net interest deductions (127,892) (102,004)
Income before income taxes 209,153 208,419
Income tax expense 31,872 28,204
Contribution to consolidated results $ 177,281 $ 180,215

~~Contribution to consolidated net income from natural gas distribution operations~~ ~~decreased approximately $3 million between the twelve-month periods ended March 2023 and 2022. The~~ ~~decline~~ ~~was~~ ~~due primarily to increases in Operations and maintenance expense, Depreciation and amortization, and Net interest deductions, offset by an increase in Operating margin and Other income.~~

Operating margin increased $76 million between periods. Customer growth provided $15 million, and combined rate relief provided $27 million of incremental operating margin. Also contributing to the increase were customer late fees that were $2.4 million greater in the current period due to lifting the earlier moratorium on such fees in all jurisdictions. Approved VSP and COYL revenue in Arizona also contributed to the improvement between periods ($21 million). The $8 million out-of-period adjustment to Net cost of gas sold, noted earlier, also contributed to the increase. Offsetting these increases were lower recoveries associated with regulatory account balances ($4 million); an associated comparable decrease is also reflected in amortization expense between periods (discussed below).

Operations and maintenance expense increased $51 million between periods. In addition to general inflationary impacts and labor market challenges overall, specific increases include pipeline integrity, reliability, line location, and engineering services costs ($12 million), increased cost of fuel (nearly $8 million, almost half of which is used in our operations), an increase in the reserve for customer accounts deemed uncollectible ($7.8 million), approximately $8 million in contractor/professional services in various areas of the business, higher legal and claim-related costs ($6 million), employee travel and training costs ($2.5 million), and higher labor-related costs ($2.6 million).

~~Depreciation and amortization expense~~ ~~increased $8.8 million, or 3%,~~ ~~between periods primarily due to a~~ ~~$531 million, or 6%, increase~~ ~~in average gas plant in service since the corresponding period in the prior year,~~ ~~offset by a reduction ($4 million) in amortization of regulatory account balances, as discussed in regard to Operating margin above.~~ ~~The increase in gas plant was attributable to pipeline capacity reinforcement work, franchise requirements, scheduled pipe replacement activities, and new infrastructure.~~

Other income increased $14 million between the twelve-month periods of 2023 and 2022. Interest income increased $18.7 million between periods related to carrying charges associated with regulatory account balances, notably deferred purchased gas cost balances, which have increased substantially since the comparable period in the the prior year. Non-service-related components of employee pension and other postretirement benefit costs decreased $15.1 million between periods. Offsetting these impacts was a $5.1 million decline in COLI results between periods, a $9 million reserve for a software project deemed non-recoverable from utility operations, and a $3 million market adjustment on other property in 2022.

~~Net interest deductions increased $26 millionbetween periods~~ ~~primarily due to~~ $600 million of Senior Notes issued in March 2022, $300 million of Senior Notes issued in December 2022, and, to a lesser extent, $300 million of Senior Notes issued in March 2023. Other impacts include increased interest associated with a higher amount of short-term debt and higher rates on variable-rate debt overall, including under Southwest’s credit facility.


			32

Income tax expense increased $3.7 million between the twelve-month periods ended March 31, 2023 and 2022, primarily due to amortization of excess accumulated deferred income taxes (“EADIT”) ($5.3 million), changes in Arizona and California state apportionment percentages of $3.2 million, and return to provision differences of $5.1 million. Income tax expense in both periods reflects that COLI results are recognized without tax consequences.

Results of Utility Infrastructure Services

Quarterly Analysis


			Three Months Ended March 31,
		Three Months Ended March 31,								Three Months Ended March 31,
(Thousands of dollars)	(Thousands of dollars)		2023		2022		(Thousands of dollars)	2024	2023
Utility infrastructure services revenues	Utility infrastructure services revenues		$	653,293	$	523,877
Operating expenses:	Operating expenses:
Utility infrastructure services expenses
Utility infrastructure services expenses
Utility infrastructure services expenses	Utility infrastructure services expenses		603,680		503,232
Depreciation and amortization	Depreciation and amortization		37,870		37,612
Operating income (loss)	Operating income (loss)		11,743		(16,967)
Other income (deductions)	Other income (deductions)		(680)		(486)
Net interest deductions	Net interest deductions		22,376		11,131
Loss before income taxes	Loss before income taxes		(11,313)		(28,584)
Income tax benefit	Income tax benefit		(1,180)		(6,170)
Net loss	Net loss		(10,133)		(22,414)
Net income attributable to noncontrolling interests			1,739		1,072
Net income (loss) attributable to noncontrolling interests
Contribution to consolidated results	Contribution to consolidated results		$	(11,872)	$	(23,486)

Utility infrastructure services revenues ~~increased $129.4~~decreased $125.3 million, or 19%, in the first quarter of ~~2023~~2024 when compared to the prior-year quarter, driven primarily by ~~a $51.7 million increase in~~decreased electric ~~infrastructure revenues and a $43.3 million increase in offshore wind revenue, which is reflected as a component of other revenues (refer to~~ ~~Note 3 – Revenue~~ in this Quarterly Report on Form 10-Q). Offshore wind revenue stems from three multi-year contracts whereby Riggs Distler provides materials, subcontracts manufacturing, and self performs fabrication and assembly of secondary steel components onshore, with delivery at a port facility. The increase in electricutility infrastructure services (“Electric”) revenues of $81.8 million, and decreased gas utility infrastructure services (“Gas”) revenues of $37.4 million. The decrease in Electric revenues was primarily due to ~~growth from both new and existing customers as well as revenues of $30.6 million from~~a decrease in emergency restoration services ~~following tornado and other storm damage to customers’ above-ground utility infrastructure in and around the Gulf Coast and eastern regions~~ of ~~the U.S., compared to $14.1~~$21.4 million in storm restoration work in the prior-year quarter. Centuri’s revenues derived from storm-related services vary from period to period due to the unpredictable nature of weather-related events, and when this type of work is performed, it typically generates a higher profit margin than core infrastructure services, due to improved operating efficiencies related to equipment utilization and absorption of fixed costs. The current quarter also included increased gas infrastructure services revenues of $36.7 million primarily resulting from ~~$29.7 million o~~f revenue related to a new bid contract that commenced during the first quarter of 2023, as well as favorable weather in several operating locations, which allowed projects in those areas to be completed during an otherwise seasonally slow period.

~~Utility infrastructure services expenses increased $100.4~~($9.2 million in the first quarter of ~~2023 when~~2024 compared to $30.6 million in the ~~prior year~~first quarter of the previous year) due to less storm activity, a decrease in offshore wind revenues of $12.6 million due to timing of project completion, and a net reduction in volumes under existing master service agreements as a result of unfavorable weather and customer budget constraints. The decrease in Gas revenues was driven primarily by unfavorable weather, which drove a ~~higher~~net reduction in volume under master services agreements with certain existing customers, as well as timing of completion of bid projects.

Utility infrastructure services expenses decreased $88 million, or 15%, in the first quarter of 2024 due primarily to a lower volume of ~~work.~~infrastructure services provided. Subcontractor costs ~~increased~~decreased during the first quarter of ~~2023~~2024 compared to the prior-year quarter primarily due to ~~increased~~decreased work under offshore wind projects and change in the mix of work performed on offshore wind projects. ~~Despite continued inflationary pressures, operating margin~~Profit margins in the first quarter of ~~2023 improved~~2024 decreased primarily due to inefficiencies caused by decreased volumes and unfavorable weather, changes in the mix of work, and ~~increased operating efficiencies related to~~a reduction in emergency restoration services ~~as well as favorable weather conditions in other locations. Also included~~which typically generate higher profit margins than core infrastructure services. Included in total Utility infrastructure services expenses were general and administrative costs, which ~~decreased~~increased approximately ~~$0.1~~$5 million between quarters primarily due to $8.3 million in combined severance and strategic review costs in the ~~full integration~~first quarter of ~~Riggs Distler as well as~~2024 compared to just $0.2 million in similar costs in the ~~impact~~first quarter of ~~cost saving measures implemented in 2022.~~2023. Gains on sale of equipment in the first quarter of ~~2023~~2024 and ~~2022~~2023 (reflected as an offset to Utility infrastructure services expenses) were approximately ~~$661,000~~$0.9 million and ~~$413,000,~~$0.7 million, respectively.

Depreciation and amortization expense decreased $3.6 million between periods, primarily due certain tools/equipment within Electric operations becoming fully depreciated in 2023 and not requiring replacement based on project needs. Additionally, more efficient utilization of existing fixed assets in recent periods has slowed the growth of the depreciable asset base, highlighted by capital expenditures of $106.6 million in calendar year 2023 compared to $130.2 million in calendar year 2022.

The increase in net interest deductions of ~~$11.2~~$1.7 million between quarters was primarily due to higher interest rates on outstanding variable-rate ~~borrowings.~~borrowings and higher borrowings on Centuri’s revolving line of credit in the first quarter of 2024 compared to the first quarter of the prior year.

Income tax benefit ~~decreased $5~~increased $8.4 million between quarters, primarily due to ~~a reduction~~an increase in pre-tax loss in ~~2023 and changes in state apportionment rates.~~2024.


			3331

~~Results of Utility Infrastructure Services~~

~~Twelve-Month Analysis~~

Twelve Months Ended March 31,
(Thousands of dollars) 2023 2022
Utility infrastructure services revenues $ 2,889,743 $ 2,318,563
Operating expenses:
Utility infrastructure services expenses 2,629,766 2,123,085
Depreciation and amortization 155,611 130,511
Operating income 104,366 64,967
Other income (deductions) (1,081) 683
Net interest deductions 72,616 30,508
Income before income taxes 30,669 35,142
Income tax expense 10,717 11,406
Net income 19,952 23,736
Net income attributable to noncontrolling interests 6,273 5,943
Contribution to consolidated results $ 13,679 $ 17,793

~~Utility infrastructure services revenu~~es ~~increased $571.2 million~~ in ~~the current twelve-month period compared to the corresponding period of 2022,~~ ~~including a~~ $408.4 million increase at Riggs Distler (acquired in August 2021), of which $132.9 million related to offshore wind projects that are reflected as a component of other revenues. Revenues from electric infrastructure services overall increased $216.6 million in the current twelve-month period when compared to the prior year, with ~~$125.6 million attributable to~~ Riggs Distler. Included in the incremental electric infrastructure revenues during the twelve-month period of 2023 was $86.1 million from emergency restoration services following storm damage to customers’ above-ground utility infrastructure in and around the Gulf Coast and eastern regions of the U.S. and Canada, as compared to $70.5 million in similar services during the twelve-month period in 2022. The remaining increase in revenue was attributable to continued growth with existing gas infrastructure customers under master service and bid agreements.

~~Utility infrastructure services expens~~es ~~increased $506.7 million~~ ~~between periods. The overall increase incl~~uded $373.7 million from Riggs Distler, and incremental costs related to the generally higher volume of work. Changes in the mix of work caused by customers’ supply chain challenges, as well as inflation, led to higher input costs including fuel and subcontractor expenses, as well as increased project-related travel and equipment rental costs incurred to fulfill electric infrastructure services. A loss of $7.5 million was incurred on a gas infrastructure bid project during the current twelve-month period due to higher costs than anticipated and scheduling delays. General and administrative costs, included in total Utility infrastructure services expenses, decreased approximately $3.4 million between comparative periods attributable to $13.9 million of professional fees incurred during the twelve-month period of 2022 in connection with the Riggs Distler acquisition that did not recur in 2023, offset by $6.1 million of strategic review and severance costs incurred in the current twelve-month period. Other administrative costs increased due to the growth in the business, including incremental costs incurred by Riggs Distler. Gains on sale of equipment (reflected as an offset to Utility infrastructure services expenses) were approx~~imately $6.6 million and $5.8 million for the twelve-month periods of 2023 and 2022, respectively.~~

~~Depreciation and amortization expense increased~~ ~~$25.1 million between the current and prior-year twelve-month periods, of which $23.3 million relates to Riggs Distler.~~

~~Net interest deductions increased $42.1 million~~ ~~betwe~~en periods due to incremental outstanding borrowings under Centuri’s $1.545 billion amended and restated secured revolving credit and term loan facility which funded the 2021 acquisition of Riggs Distler, in addition to higher interest rates on outstanding variable-rate borrowings.


			34

~~Results of Pipeline and Storage~~

~~Quarterly Analysis~~

Three Months Ended
March 31,
(Thousands of dollars) 2023 2022
Regulated operations revenues $ 35,132 $ 66,993
Operating expenses:
Net cost of gas sold 6,368 1,797
Operations and maintenance expense 11,378 24,312
Depreciation and amortization — 12,920
Taxes other than income taxes 1,490 3,164
Goodwill impairment 21,215 —
Operating income (loss) (5,319) 24,800
Other income (deductions) 486 543
Net interest deductions 2,200 4,382
Income (loss) before income taxes (7,033) 20,961
Income tax expense 9,255 4,031
Contribution to consolidated results $ (16,288) $ 16,930

Operating results for the pipeline and storage segment for the first quarter of 2023 reflect activity from January 1, 2023 through February 13, 2023 (the last full day of ownership by the Company). Operating results included rate-regulated transmission and subscription storage revenues of $34 million and $62 million during the three months ended March 31, 2023 and 2022, respectively. Operating expenses include $2.6 million during the current quarter related to integration/stand-up costs leading up to the sale date. Depreciation and amortization was not recorded in 2023 as MountainWest was classified as held for sale during the holding period. Income tax expense includes the impact of book versus tax basis differences related to the sale completed in 2023. A discussion of the twelve months ended March 31, 2023 to the comparable prior-year period is omitted as the Company owned MountainWest for only three months of the twelve-month period ended March 31, 2022. For further impacts from the sale on MountainWest to Southwest Gas Holdings, Inc. in the post-closing period, refer to ~~Note 7 – Segment Information.~~

Rates and Regulatory Proceedings

Southwest is subject to the regulation of the Arizona Corporation Commission (“ACC”), the Public Utilities Commission of Nevada (the “PUCN”), the California Public Utilities Commission (the “CPUC”), and two of Southwest’s subsidiaries are subject to regulation by the Federal Energy Regulatory Commission (the “FERC”).

~~General Rate Relief and Rate Design~~

Rates charged to customers vary according to customer class and rate jurisdiction and are set by the individual state and federal regulatory commissions that govern Southwest’s service territories. Southwest makes periodic filings for rate adjustments as the cost of providing service changes (including the cost of natural gas purchased), and as additional investments in new or replacement pipeline and related facilities are made. Rates are intended to provide for recovery of all commission-approved costs and a reasonable return on investment. The mix of fixed and variable components in rates assigned to various customer classes (rate design) can significantly impact the operating margin actually realized by Southwest. Management has worked with its regulatory commissions in designing rate structures that strive to provide affordable and reliable service while mitigating volatility in prices to customers and stabilizing returns to investors. Such rate structures were in place in all of Southwest’s operating areas during all periods for which results of natural gas distribution operations are disclosed above.

Arizona Jurisdiction

Arizona General Rate Case. Southwest filed ~~a general~~its 2024 Arizona rate case application in ~~December 2021, primarily~~early February 2024, proposing an increase in revenue of approximately $126 million to reflect ~~in rates~~ the ~~substantial~~continued significant capital investments ~~that were made since~~in the ~~end~~state and to update rates to more closely align with Southwest’s current level of ~~the test year in an earlier case, including investments in~~operations and maintenance expense. The request includes a customer information system implemented in May 2021. At a hearing held in September 2022, Southwest, the Utilities Division Staff (the “Staff”), and the Residential Utility Consumer Office jointly stipulated to several issues, including a target capital structure consisting of 50% equity and 50% debt; a 9.30% return on ~~equity;~~common equity of 10.15% and ~~foregoing an acquisition premium related~~a 0.81% fair value increment, relative to ~~the~~


			35

~~recent Graham County acquisition as well as recovery of $12 million of waived late fees on customer account balances that would have~~a 50% target equity ratio and a proposed twelve-month post-test year plant adjustment for otherwise ~~applied~~non-revenue producing plant. In addition to ~~delinquent accounts in the absence of a COVID-19 moratorium on such fees. Among the uncontested issues identified prior to the hearing were~~proposing the continuation of full revenue decoupling under the Delivery Charge Adjustment (“DCA”)~~, Southwest’s full revenue decoupling~~ mechanism, Southwest proposed the ~~continuation~~establishment of the System Improvement Benefit (“SIB”) mechanism, a capital tracker designed to support required code and regulatory-related infrastructure replacements in the state of Arizona. Southwest also proposed to set the carrying cost for the interest component of the DCA and Gas Cost Balancing Account (“GCBA”) rate adjustment mechanisms to equal the Commission-authorized Weighted Average Cost of Capital, and to establish an Unrecovered Gas Cost Expense Provision (“UGCE”), which represents the gas cost-related portion of net write-offs of uncollectible customer accounts. The UGCE would allow Southwest to more timely recover commodity and related components of such accounts. Rates, following the conclusion of the rate case, are anticipated to become effective in the second quarter 2025. Southwest’s existing rate design (with the exception of an updated year-round Low Income Ratepayer Assistance program), and Southwest’s alternate property tax expense calculation, reflecting actual incurred property tax expense in 2021, instead of a pro-forma adjustment reflecting forecasted property tax expense. Approximately $12 million in costs related to the Liquefied Natural Gas facility deferred in an authorized regulatory asset will be amortized over four years. The ACC’s final order authorized a $54.3 million increase, with newgeneral rates became effective February 1, ~~2023.~~2023 following conclusion of the previous general rate case.

Delivery Charge Adjustment. The DCA, ~~is filed~~or Arizona decoupling mechanism, as described above, includes a filing each April, which along with other reporting requirements, contemplates a rate to ~~recover/return~~return/recover the over- or under-collected margin tracker (decoupling mechanism) balance. ~~An April 2022 request proposed a~~The existing rate to return ~~$10.5 million,~~ the over-collected balance existing ~~at the end of the first quarter 2022, which became effective July 1, 2022. A filing was made prior to the end of April 2023 to request a rate to address the over-collected balance of $53.5 million~~ as of March 31, 2023 was approved and became effective August 1, 2023. The most recent filing was made in April 2024, requesting to update rates to address the $17.5 million over-collected balance existing as of March 31, 2024.

Tax Reform. A Tax Expense Adjustor Mechanism (“TEAM”) was approved in Southwest’s 2019 general rate case to timely recognize tax rate changes resulting from federal or state tax legislation following the TEAM implementation. In addition, the TEAM tracks and returns/recovers the revenue requirement impact of changes in amortization of ~~EADIT (including~~excess accumulated deferred income taxes (“EADIT”), including that which resulted from 2017 U.S. federal tax ~~reform)~~reform, compared to the amount authorized in the most recently concluded rate case. Following the inaugural surcredit rate establishment under the TEAM mechanism in December 2022, Southwest has filed ~~its most recent~~subsequent TEAM rate ~~application, proposing~~applications, including a recent filing, which proposes to update the TEAM surcredit to refund ~~$6.5~~$5.03 million of estimated ~~net~~ EADIT ~~savings, which was approved by~~savings. The adjusted rate is anticipated to be implemented in the ~~ACC and will be effective May 1, 2023.~~second quarter of 2024.

Customer-Owned Yard Line (“COYL”) Program. Southwest originally received approval, in connection with its 2010 Arizona general rate case, to implement a program to conduct leak surveys, and if leaks were present, to replace and relocate service lines and meters for Arizona customers whose meters were set off from the customer’s home, representing a non-traditional configuration. The COYL program has been subject to proceedings to recover investments since that time. In February ~~2023,~~2024, Southwest requested approval to recover the outstanding revenue requirement of approximately ~~$4.3~~$1.8 million associated with ~~2022~~2023 COYL ~~investments, which~~investments. The existing rate, effective July 1, 2023, will ~~increase~~remain in place until the ~~COYL recovery rate. The~~ new rate is ~~anticipated to become effective June 1, 2023.~~

~~Vintage Steel Pipe (“VSP”) Program.~~ Southwest received approval, in connection with its 2016 Arizona general rate case, to implement a VSP replacement program, due to having a substantial amount of pre-1970s vintage steel pipe in Arizona. However, as part of Southwest’s 2020 general rate case decision, the ACC ultimately decided to discontinue the accelerated VSP program. A filing in May 2021 proposed the recovery of previously unrecovered surcharge revenue relating to investments during 2019 and 2020, with approximately $60 million to be recovered over a three-year period. In November 2021, the ACC approved full recovery over the proposed three-year timeline with updated rates, which became effective in March 2022.

~~Graham County Utilities.~~ In April 2021, Southwest and Graham County Utilities, Inc. (“GCU”) filed a joint application with the ACC for approval to transfer assets of GCU to Southwest and extend Southwest’s Certificate of Public Convenience and Necessity to serve the more than 5,000 associated customers, for a purchase price of $3.5 million. Approval of the application by the ACC was received in December 2021, with final transfer in mid-January 2022. Former GCU customers retained their existing rates while Southwest’s most recent rate case was processed; the customers moved to Southwest’s rates effective March 1, 2023.approved.

PGA Modification. On March 1, 2023, Southwest filed a request to adjust the interest rate applicable to the outstanding Purchased Gas Adjustment (“PGA”) balance to more closely match the interest expense incurred to finance the balance. In the alternative, the filing ~~requests~~requested an expansion of the current ~~gas cost balancing account (“GCBA”)~~GCBA adjustment to clear the then existing $351 million ~~balance over one year, which would result in~~balance. In July 2023, the ACC approved an increase to the GCBA rate (over a two-year period) effective August 1, 2023, to support the timely recovery of the ~~current~~approximately $358 million balance as of May 31, 2023. The increased GCBA ~~adjustment~~ rate ~~of $0.10 per therm~~will remain for up to ~~more than $0.50 per therm~~two years or until the balance drops below $10 million, at which ~~time~~point the GCBA ~~adjustment~~ rate ~~would~~will be set to $0.00 per ~~therm.~~therm, where it will remain until the under- or over-collected balance exceeds $10 million. The ~~GCBA is in addition to~~ ongoing deferred energy rates, separate from the GCBA rates, continue to be updated monthly. ~~Expedited treatment was requested with a proposed June 1, 2023 implementation.~~

~~California Jurisdiction~~

~~Attrition Filing.~~ Following the 2021 implementation of rates approved as part of the general rate case, and the continuing annual Post Test Year (“PTY”) attrition increases of 2.75% indicated above, the first such increase following the rate case effective date began in January 2022, with the most recent annual attrition increase effective January 1, 2023. The PTY increase associated with the North Lake Tahoe Lateral revenue requirement became effective February 1, 2023.


			3632

~~Customer Data Modernization Initiative (“CDMI”).~~ In April 2019, Southwest filed an application with the CPUC seeking authority to establish a two-way, interest-bearing balancing account to record costs associated with the CDMI to mitigate adverse financial implications related to the earlier multi-year project (including a new customer information system, ultimately implemented in May 2021). Effective October 2019, the CPUC granted a memorandum account, which allowed Southwest to track costs, including operations and maintenance costs and capital-related costs, such as depreciation, taxes, and return associated with California’s portion of the CDMI (initially estimated at $19 million). The balance tracked in the memorandum account was transferred to the two-way balancing account in July 2020. A rate to begin recovering the balance accumulated through June 30, 2020 was established and made effective September 1, 2020, and updated multiple times since, including in January 2023. This rate is expected to be updated at least annually.

~~Carbon Offset Program.~~ In March 2022, Southwest filed an application to seek approval to offer a voluntary program to California customers to purchase carbon offsets in an effort to provide customers additional options to offset their respective greenhouse gas (“GHG”) emissions. A request to establish a two-way balancing account to track program-related costs and revenues was included as part of the application. The CPUC issued a decision dismissing Southwest’s application without prejudice. Southwest anticipates filing a new application in 2023 addressing concerns raised by third parties as part of the earlier request, which included a request to demonstrate that purchased offsets would result in GHG emissions reductions.

~~Building Decarbonization.~~ A CPUC decision was issued regarding the elimination of monetary allowances for gas line extensions, a 10-year refundable payment option, and the 50% discount payment option for both residential and non-residential customers of all California gas utilities. This applies to new applications for gas line extensions submitted on or after July 1, 2023. Although this decision eliminates the various allowances related to line extensions, it does not preclude extending natural gas service to customers.

~~Residential Disconnection Protections.~~ A decision was issued by the CPUC establishing disconnection protections for residential customers of small and multi-jurisdictional utilities, including Southwest. A similar decision was adopted for four large California utilities in 2020. This decision imposes an annual disconnection cap and prohibits the utility from assessing credit deposits for residential customers establishing or re-establishing service, and prohibits the assessment of reconnection fees for residential customers, among other provisions. The decision, however, also provides authorization to establish a two-way balancing account to track residential uncollectible charges with the first rates expected to be implemented January 1, 2024. The decision also authorized a memorandum account to track uncollected reconnection charges for possible future recovery in Southwest’s next general rate case.

Nevada Jurisdiction

Nevada General Rate Case. Southwest ~~concluded~~filed its most recent ~~Nevada~~ general rate case in ~~February 2022, providing~~September 2023 based on the test year ended May 2023. The initial request was updated with a certification filing primarily for plant placed in service and incremental annual leak survey costs through November 2023. Those updates resulted in an updated overall request of $74 million, an increase over the initial request of $69.8 million. A stipulation was reached with Regulatory Operations Staff and the Bureau of Consumer Protection, settling certain issues and agreeing to a black box settlement with a statewide ~~revenue~~ increase of ~~$14.05~~$65.6 million, before any adjustments for the cost of capital. Following a hearing on cost of capital issues, the PUCN issued a decision approving an annual increase of revenues of $59 million, approving the proposed settlement, and authorizing a return on common equity of ~~9.40% relative to~~9.5%, including the use of a hypothetical capital structure of 50% ~~target equity ratio,~~debt and 50% equity. Included in the settled items are a continuation of ~~Southwest’s~~ full revenue ~~decoupling mechanism, the General Revenues Adjustment (“GRA”). The stipulation was approved by the PUCN,~~decoupling; authority to continue tracking incremental annual leak survey costs in a regulatory asset (discussed further below); and ~~new~~refreshed depreciation rates that are somewhat lower than proposed. New rates became effective in April 1, 2022. The PUCN’s order did not include recovery of the approximate $6.6 million in deferred late payment charges related to a regulatory asset associated with a COVID-19 moratorium on disconnections previously in place.2024.

General Revenues Adjustment. ~~As noted above, the continuation of the GRA~~The General Revenues Adjustment (“GRA”), or Nevada decoupling mechanism, was affirmed as part of Southwest’s most ~~recent~~recently concluded general rate case ~~with an expansion to include a large customer class (with average monthly throughput requirements greater than 15,000 therms), effective April 2022. Southwest makes~~and adjustments are included in the Annual Rate Adjustment (“ARA”) filings intended to update rates to ~~recover or~~ recover/return amounts associated with various regulatory mechanisms, including the GRA. Southwest made its most recent ARA filing in November ~~2022~~2023 related to ~~balances~~the approximate $8.7 million over-collected balance as of September 30, ~~2022. Given the magnitude~~2023. Recovery of the outstanding balances, further discussion with the parties resulted in a settlement of the issues and utilizing a more current balance as of January 2023 to better align the rates implemented with the existing balance. Recovery rates and adjustments thereto as part of the ARA primarily impact cash flows, but not net income overall. Updated rates for the GRA and other regulatory mechanisms included in the ARA filing will become effective May 1, 2024, earlier than the typical July 1, 2024 effective date due to a commission-approved settlement.

~~Conservation~~Nevada Leak Survey. In 2019, the PUCN opened an Investigation and ~~Energy Efficiency.~~ The PUCN allows deferral (and later recovery) of approved conservation and energy efficiency costs, recovery rates for which are adjusted in association with ARA filings. In its November 2022 ARA filing, Southwest proposed an annualized revenue increase of $139,000 and a decrease of $290,000 for southern and northern Nevada, respectively. A stipulation relatedRulemaking action to consider certain amendments to the ~~conservation~~Nevada Administrative Code requiring annual leak surveys of distribution pipelines transporting natural gas or liquid petroleum. The increased survey activity was to focus on business districts and ~~energy efficiency costs and other ARA-related mechanisms was reached with the parties and approved by the PUCN with rates~~to be conducted generally on an annual basis (not exceeding 15-month survey intervals). The proposed regulations were permanently adopted effective ~~July~~January 1, 2023. Separately, in May 2022, Southwest filed an application seeking approval of its annual Conservation and Energy Efficiency Plan Report for 2021, with no proposed modifications to the previously approved $1.3 million annual budget for years 2022-2024. The parties reached a stipulation thatRegulatory asset treatment was approved byfor the ~~PUCN~~purpose of tracking incremental costs associated with implementing the increased leak surveys. Continuation of the program, along with recovery of earlier incurred amounts over a two-year period, was approved in ~~July 2022.~~conjunction with Southwest’s recently completed general rate case.

California Jurisdiction

~~Carbon Offset Program.~~ Attrition Filing.~~In June~~ Following the 2021 Southwest filed an application to seek approval to offer a voluntary program to northern and southern Nevada customers to purchase carbon offsets in an effort to provide customers additional options to offset their


			37

~~respective GHG emissions. A request to establish a regulatory asset to track program-related costs and revenues was included~~implementation of rates approved as part of the ~~application.~~most recent general rate case, the continuation of annual Post Test Year (“PTY”) margin attrition increases of 2.75% began in January 2022. The ~~parties reached~~most recent annual margin attrition increase was also inclusive of adjustments related to the amortization of EADIT and the impact of the Automatic Trigger Mechanism (“ATM”) on authorized rate base. The ATM adjusts the rate of return up or down (in this case, up) as a ~~stipulation that was approved by the PUCN in December 2021, approving Southwest’s proposal. The program opened for customer participation~~result of changes in the ~~fourth quarter~~average utility bond yield that exceed 100 basis points. The cumulative impact results in an annual increase of ~~2022.~~$6.9 million effective January 2024 for Southwest’s southern California, northern California, and South Lake Tahoe rate jurisdictions.

FERC Jurisdiction

General Rate Case.Great Basin Gas Transmission Company (“Great Basin”), a wholly owned subsidiary of Southwest, ~~reached an agreement~~ filed notice of a change in ~~principle with~~rates (pursuant to applicable regulations) on March 6, 2024, requesting that rates for natural gas service subject to the ~~FERC Staff providing that its three largest transportation customers and all storage customers would~~filing be ~~required to have primary service agreement terms of at least five years, that term-differentiated rates would continue generally, and included a 9.90% pre-tax rate of return. Interim rates were~~ made effective ~~February 2020. As~~April 6, 2024. The FERC, however, suspended the case for a five-month period, which will allow rates to go into effect, subject to refund, September 6, 2024.The filing includes a request to continue a term-differentiated rate structure which was adopted as part of ~~the settlement,~~ Great ~~Basin will not file a~~Basin’s last general rate case, ~~later than May 31, 2025.~~

~~MountainWest Overthrust Pipeline.~~ ~~On September 22, 2022, during the period~~an overall revenue increase of ~~Southwest Gas Holdings’ ownership~~approximately $16 million, and a return on equity of 14.05% and 13.05% applicable to each category of shippers, as applicable, and a capital structure of 44% long-term debt and 56% common equity. A primary driver of the ~~MountainWest entities,~~proposed increase is approximately $99 million of capital investments anticipated to be placed in service by the ~~FERC issued an order initiating an investigation, pursuant to section 5~~end of the ~~Natural Gas Act,~~August 31, 2024 test year. Motion rates, subject to determine whether rates charged by MountainWest Overthrust Pipeline, LLC, a subsidiary of MountainWest, were just and reasonable and setting the matter for hearing (the “Section 5 Rate Case”). Unless earlier settled by the parties, a hearing on the matter wasrefund, are anticipated to ~~commence~~become effective in ~~August 2023~~September 2024, subject to refund as indicated, with an initial decision ~~from~~during the ~~presiding administrative law judge due by November 14, 2023. Under the terms~~second quarter of the purchase and sale agreement entered into in connection with the MountainWest sale, the Company became obligated, for a period of four years following the closing of the MountainWest sale, to indemnify Williams and MountainWest for any damages and liabilities resulting from the Section 5 Rate Case, including any reduction to the current applicable rate, up to a cap of $75 million. Williams, in collaboration with the Company, agreed to a settlement of the Section 5 Rate Case, which is pending approval by the FERC. As a result of the settlement, the Company recorded a charge of $28.4 million, an amount for which it is now expected to be obligated, which is included in Goodwill impairment and loss on sale on the Company’s Consolidated Statements of Income for the three- and twelve- months ended March 31, 2023.2025.


			33

PGA Filings

The rate schedules in all of Southwest’s service territories contain provisions that permit adjustment to rates as the cost of purchased gas changes. These deferred energy provisions and purchased gas adjustment clauses are collectively referred to as “PGA” clauses. Differences between gas costs recovered from customers and amounts paid for gas by Southwest result in over- or under-collections. Balances are recovered from or refunded to customers on an ongoing basis with interest. As of March 31, ~~2023,~~2024, under-collections in each of Southwest’s service territories resulted in an asset of ~~$970~~$199 million on the Company’s and Southwest’s Condensed Consolidated Balance Sheets. ~~See also~~ ~~Deferred Purchased Gas Costs~~The substantial reduction in ~~Note 1 – Background, Organization,~~balances receivable between periods in the table below reflects a combination of specific recovery rates in place to collect the build-up of earlier balances as a result of the cost paid for gas in those earlier periods, and ~~Summary~~recent conditions whereby base rates under the mechanisms have exceeded the cost of ~~Significant Accounting Policies~~ ~~in this quarterly report on Form 10-Q~~.recent gas purchases with suppliers.

Filings to change rates in accordance with PGA clauses are subject to audit by state regulatory commission staffs. PGA changes impact cash flows but have no direct impact on operating margin. However, gas cost deferrals and recoveries can impact comparisons between periods of individual consolidated income statement components. These include Regulated operations revenues, Net cost of gas sold, Net interest deductions, and Other income (deductions).

The following table presents Southwest’s outstanding PGA balances ~~receivable/(payable):~~receivable:


(Thousands of dollars)	(Thousands of dollars)		March 31, 2023		December 31, 2022		March 31, 2022		(Thousands of dollars)	March 31, 2024	December 31, 2023	March 31, 2023
Arizona	Arizona		$	417,931	$	292,472	$	255,472
Northern Nevada	Northern Nevada		80,540		27,384		13,700
Southern Nevada	Southern Nevada		415,146		122,959		93,153
California	California		56,722		7,305		5,629
			$	970,339	$	450,120	$	367,954
		$

Capital Resources and Liquidity

Historically, cash on hand and cash flows from operations have provided a substantial portion of cash used in investing activities (primarily for construction expenditures and property additions). In recent years, Southwest has undertaken significant pipe replacement activities to fortify system integrity and reliability, including on an accelerated basis in association with certain gas infrastructure replacement programs. In addition, certain national events, including several major storms in recent years affecting central portions of the U.S., have contributed to the periodic run-up in gas supply costs. This collective activity has necessitated the issuance of both debt and equity securities to supplement cash flows from operations. ~~More recently, a number of conditions, such as winter storms~~Southwest Gas Holdings, Inc. and ~~market forces (including historically low storage levels) have caused gas prices to spike and remain higher than previous historical levels. The~~


			38

~~Company’s~~Southwest’s capitalization strategy is to maintain an appropriate balance of equity and debt to preserve investment-grade credit ratings, which help minimize interest costs. Investment-grade credit ratings have been maintained by Southwest Gas Holdings, Inc. and Southwest.

Cash Flows

Southwest Gas Holdings, Inc.:

Operating Cash Flows. Cash flows ~~from~~provided by consolidated operating activities ~~decreased $372~~increased $729 million in the first three months of ~~2023~~2024 as compared to the same period of ~~2022.~~2023. The ~~decline in cash flows~~increase was primarily ~~resulted from~~driven by the change in purchased gas costs for Southwest, including amounts incurred and deferred, as well as impacts related to when amounts are incorporated in customer bills to recover or return deferred balances. ~~Gas~~As noted above, both the rates embedded in customer rates to support recovery of the previously elevated balance, and recent gas supply costs ~~recovered from~~that have been lower than base tariff gas cost rates billed to customers ~~were higher~~have in ~~both periods compared to earlier historical periods, but amounts expended for gas purchases~~combination substantially ~~increased~~reduced the balances receivable under our PGA mechanisms. These conditions have provided a significant source of available funds in the ~~first quarter~~current period. The improvement in cash flows also reflect the impacts of ~~2023, reflected also as higher Deferred purchased gas cost balances~~changes in ~~advance of rates to recover the balance. Other impacts include changes in~~other components of working capital ~~overall.~~overall, including the timing and amount of accounts payable and other current asset and liability balances.

Corporate and administrative expenses/outflows for Southwest Gas Holdings, Inc. in the ~~three- and twelve-month periods~~three-month period ended March 31, ~~2023~~2024 mainly include ~~charges related to~~interest paid on borrowings and costs associated with the ~~MountainWest sale that closed in February 2023.~~Centuri separation.

Investing Cash Flows. Cash flows ~~from~~provided by consolidated investing activities ~~increased $1~~decreased $1.04 billion in the first three months of ~~2023~~2024 as compared to the same period of ~~2022.~~2023. The overall ~~increase related to~~decrease was driven by $1.06 billion in proceeds received in connection with the MountainWest sale ~~(which amount is net~~(net of cash sold), in 2023, partially offset by ~~an increase in capital expenditures in both~~proceeds from the ~~natural gas distribution and utility infrastructure services segments.~~sale of other property.


			34

Financing Cash Flows. Cash flows from consolidated financing activities ~~decreased $1.1 billion~~increased $723 million in the first three months of ~~2023~~2024 as compared to the same period of ~~2022.~~2023. The overall ~~decrease~~increase was primarily due to the first quarter 2023 repayment ($1.1 billion) of the then remaining balance of the term loan entered into by Southwest Gas Holdings, Inc. in ~~November 2021 in~~ connection with the 2021 acquisition of ~~MountainWest. Other~~MountainWest, with no comparable repayment in the current year. Offsetting the increase between periods were impacts ~~that offset this decrease were~~also primarily occurring in 2023, including proceeds received from the issuance of common stock in an underwritten public ~~offering~~offerings in March 2023 and debt proceeds by Southwest from the 364-day $450 million term loan to address an escalation in gas purchases (entered into in January 2023 and repaid in full in April 2023). The first quarter of 2023 also included $300 million of Senior Notes ~~(the “March 2023 Notes”)~~ issued by ~~Southwest compared to $600 million in the first quarter of 2022.~~Southwest. Other financing cash flows ~~relate to~~include borrowings and ~~repayment~~repayments under the companies’ credit ~~facilities.~~facilities, and an increase in dividends paid.

The capital requirements and resources of the Company generally are determined independently for the individual business segments. Each business segment is generally responsible for securing its own debt financing sources. However, the holding company may raise funds through stock issuances or other external financing sources in support of each business segment.

Southwest Gas Corporation:

Operating Cash Flows. Cash flows ~~from~~provided by operating activities ~~decreased $393~~increased $806 million in the first three months of ~~2023~~2024 as compared to the same period of ~~2022.~~2023. The ~~decline~~improvement in operating cash flows was primarily attributable to ~~Deferred purchased~~deferred gas costs ~~changes~~change (as discussed above), as well as to other working capital changes.

Investing Cash Flows. Cash used in investing activities ~~increased $64~~decreased $28 million in the first three months of ~~2023~~2024 as compared to the same period of ~~2022. The change was primarily~~2023. While outflows for capital expenditures were generally comparable between periods, the current period reflects offsetting inflows due to ~~increases in capital expenditures in 2023 and decreases~~proceeds received from the sale of property, as well as reduced outflows related to activity associated with customer advances for ~~construction (amounts collected and/or returned) as compared to the same period in the prior year.~~construction. See also NaturalGas Distribution Segment Construction Expenditures, ~~and~~ Debt Maturities, and Financing below.

Financing Cash Flows. Net cash ~~provided by~~from financing ~~activities increased $31~~activities decreased $480 million in the first three months of ~~2023~~2024 as compared to the same period of ~~2022.~~2023. The ~~increase~~decline was primarily due to activity during the first quarter of 2023, including Southwest’s issuance of a $450 million term loan ~~borrowing~~ in January 2023 ~~offset by $225 million payment of the term loan entered into in March 2021,~~ along with the issuance of $300 million notes in the ~~March 2023 Notes noted above,~~same quarter, offset by a $225 million term loan repayment in that same quarter of the prior year. Dividends paid and borrowing and repayment activity under the credit ~~facility.~~facility comprise the remaining activity between periods. See Note 5 – Debt.

Natural Gas Distribution Segment Construction Expenditures, Debt Maturities, and Financing

During the ~~twelve-month~~three-month period ended March 31, ~~2023,~~2024, construction expenditures for the natural gas distribution segment were ~~$734~~$191 million (not including amounts incurred for capital expenditures not yet paid). The majority of these expenditures, ~~represented costs~~approximately 51%, were associated with the replacement of existing transmission and distribution pipeline facilities to fortify system integrity and reliability, as well as other general plant ~~expenditures.~~expenditures, with the remainder related to new construction. These expenditures, along with the timing of capital projects, resulted in an increase in the construction work in progress balance as of March 31, 2024.

Management estimates natural gas segment construction expenditures during the three-year period ending December 31, ~~2025~~2026 will be approximately ~~$2.0~~$2.4 billion. Of this amount, approximately ~~$665 million to $685~~$830 million is expected to be incurred during calendar year ~~2023.~~2024. Southwest plans to continue to request regulatory support to undertake projects, or to accelerate projects as necessary for the improvement of system flexibility and reliability, or to expand, where relevant, to unserved or underserved areas. Southwest may expand existing, or initiate new, programs. Significant replacement activities are expected to


			39

continue well beyond the next few years. See also Rates and Regulatory Proceedings. During the three-year period ending December 31, ~~2025,~~2026, Southwest will be required to renew or otherwise address its credit facility. Southwest has $75 million of long-term debt maturing in 2026, but otherwise no maturities in either 2024 or 2025. Also during that same three-year period, cash flows from operating activities of Southwest are expected to provide approximately ~~77%~~78% of the funding for gas operations of Southwest and total construction expenditures and dividend requirements. During the quarter ended March 31, 2023, Southwest entered into a 364-day $450 million term loan agreement, and also fully paid off the March 2021 term loan, each of which were initiated to fund spikes in natural gas purchases. AdditionalAny additional cash requirements, including construction-related, and ~~pay down~~any paydown or refinancing of debt, are expected to be provided by existing credit facilities, parent equity contributions, ~~from the Company,~~ and/or other external financing sources. The timing, types, and amounts of additional external financings will be dependent on a number of factors, including the cost of gas purchases, conditions in capital markets, timing and amount of rate relief, timing and amount of surcharge collections from, or amounts returned to, customers related to other regulatory mechanisms and programs, as well as growth levels in Southwest’s service areas and earnings. External financings may include the issuance of debt securities, bank and other short-term borrowings, and other forms of financing.


			35

Dividend Policy

Dividends are payable on the Company’s common stock at the discretion of the Board. In setting the dividend rate, the Board considers, among other factors, current and expected future earnings levels, our ongoing capital expenditure plans, expected external funding needs, our payout ratio, and our ability to maintain investment-grade credit ratings and liquidity. The Company has paid dividends on its common stock since 1956. InIn February ~~2023,~~2024, the Board determined to maintain the quarterly dividend at $0.62 per share,, effective with the June ~~2023~~2024 payment. Although no assurances can be provided on our future dividend payments, the Board currently intends to reevaluate the dividend upon the completion of the Centuri separation, and it is anticipated that we will pay a dividend at a level consistent with industry peers.

Liquidity

Several factors (some of which are out of the control of the Company) that could significantly affect liquidity in the future include: variability of natural gas prices, changes in ratemaking policies of regulatory commissions, regulatory lag, customer growth in the natural gas distribution segment, the ability to access and obtain capital from external sources, interest rates, changes in income tax laws, pension funding requirements, inflation, and the level of earnings. Natural gas prices and related gas cost recovery rates, as well as plant investment, have historically had the most significant impact on liquidity.

On an interim basis, Southwest defers over- or under-collections of gas costs to PGA balancing accounts. In addition, Southwest uses this mechanism to either refund amounts over-collected or recoup amounts under-collected as compared to the price paid for natural gas during the period since the last PGA rate change went into effect. At March 31, ~~2023,~~2024, the combined balance in the PGA accounts totaled an under-collection of ~~$970 million.~~$199 million, and the substantial reduction in the PGA balance as of this date compared to balances existing in recently concluded comparable earlier periods is also highlighted by the substantial cash balance of more than $400 million existing as of March 31, 2024. See PGA Filings for more information. The market price of natural gas spiked as a result of numerous market forces including historically low storage levels, unexpected upstream pipeline maintenance events, and cold weather conditions across the western region in the latter part of 2022 and continuing into January 2023. As a result of this increase in pricing, in January 2023, Southwest entered into a 364-day $450 million term loan in order to fund the incremental cost. This indebtedness was repaid in April 2023 (refer to ~~Note 5 – Debt~~ ~~in this Quarterly Report on Form 10-Q). We may be required to incur additional indebtedness in connection with future spikes in natural gas prices as a result of extreme weather events or otherwise.~~

In March 2023, Southwest issued $300 million aggregate principal amount of 5.450% Senior Notes. The notes will mature in March 2028. Southwest used the net proceeds to repay amounts outstanding under Southwest’s credit facility and the remainder for general corporate purposes.

~~In April 2023,~~ ~~Southwest Gas Holdings, Inc.~~ entered into a $550 million Term Loan Credit Agreement that matures in October 2024. Southwest Gas Holdings, Inc. utilized a majority of the proceeds to make an equity contribution to Southwest. On April 17, 2023, Southwest utilized the equity contribution to repay, in full, amounts outstanding under its ~~$450 million~~ ~~364-day term loan entered into in January 2023, with the remainder of the equity contribution used for working capital and general corporate purposes.~~

Southwest Gas Holdings, Inc. has a credit facility with a borrowing capacity of $300 million that expires in December 2026. This facility is intended for short-term financing needs. At March 31, ~~2023, $18~~2024, $94 million was outstanding under this facility.

Southwest has a credit facility with a borrowing capacity of $400 million, which expires in April 2025. Southwest designates $150 million of the facility for long-term borrowing needs and the remaining $250 million for working capital purposes. ~~The maximum amount outstanding~~There was no activity on either the long-term ~~portion~~or short-term portions of t~~he credit facility (including a commercial paper program) during~~ the ~~first three months of 2023 was $150 million. The maximum amount outstanding on the short-term portion of the credit~~ facility during the ~~first three months of 2023 was $75 million.~~three-month period ending March 31, 2024. At March 31, ~~2023,~~2024, no borr ~~borrowings~~owings were outstanding on either the long-term ~~portion~~ or ~~the~~ short-term ~~portion~~portions of the facility. The credit facility can be used as necessary to meet liquidity requirements, including temporarily financing under-collected PGA balances, or meeting the refund needs of over-collected balances. The credit facility has generally been adequate for Southwest’s working capital needs outside of funds raised through operations and


			40

other types of external financing. Any additional cash requirements would include the existing credit facility, equity contributions from the Company, and/or other external financing sources.

Southwest has a $50 million commercial paper program. Any issuance under the commercial paper program is supported by Southwest’s current revolving credit facility and, therefore, does not represent additional borrowing capacity. Any borrowing under the commercial paper program is designated as long-term debt. Interest rates for the commercial paper program are calculated at the current commercial paper rate during the borrowing term. At March 31, ~~2023,~~2024, there ~~were~~were no borrowings outstanding under this program.

Centuri has a ~~senior~~ $1.545 billion secured revolving credit and term loan multi-currency facility. The capacity of the line of credit ~~portion comprises $400 million; associated~~is $400 million with related amounts borrowed and repaid ~~are~~ available to be ~~re-borrowed.~~re-borrowed; the term loan facility has a limit of $1.145 billion. The term loan ~~facility portion provided approximately~~ ~~$1.145 billion in financing. The term lo~~an facility expires on August 27, 2028 and the revolving credit facility expires on August 27, 2026. This multi-currency facility allows the borrower to request loan advances in either Canadian dollars or U.S. dollars. The obligations under the credit agreement are secured by present and future ownership interests in substantially all direct and indirect subsidiaries of Centuri, substantially all of the tangible and intangible personal property of each borrower, certain of their direct and indirect subsidiaries, and all products, profits, and proceeds of the foregoing. Centuri assets securing the facility at March 31, ~~2023~~2024 totaled $2.4 billion. The maximum amount outstanding on the combined facility during the first three months of ~~2023~~2024 was ~~$1.074~~$1.117 billion. As of March 31, ~~2023, $19~~2024, $125 million was outstanding on the revolving credit facility, in addition to ~~$1.003~~$1 billion that was outstanding on the term loan portion of the facility. Also at March 31, ~~2023,~~2024, there was approximately ~~$312~~$201 million,, net ofof letters of credit, ~~available~~available for borrowing under the line of credit.


			36

As discussed earlier, in April 2024, the ~~first quarter~~successful completion of ~~2023, the Company paid down (primarily with proceeds from the MountainWest sale) the remaining balance on the $1.6 billion term loan entered into in November 2021 in connection with the acquisition~~an IPO of ~~MountainWest.~~

~~In March 2023, the Company issued through a separate prospectus supplement under the Universal Shelf, an aggregate of 4.1 million~~14,260,000 shares of Centuri common stock was completed at ~~an underwritten public offering~~a price of ~~$60.12~~$21.00 per share, ~~resulting~~ in addition to a concurrent private placement of 2,591,929 shares at a price equal to the IPO price. The collective net proceeds to ~~the Company~~Centuri approximated $329 million. Centuri used $316 million of ~~$238.4 million, net of an underwriter’s discount of $8.3 million and estimated expenses of~~ the ~~offering. The Company used the net~~ proceeds to repay ~~outstanding amounts under the Company’s credit facility, with remaining amounts used to pay a residual portion of~~ amounts outstanding under ~~the~~its revolving credit and term loan ~~entered into in connection~~facility, with the ~~MountainWest acquisition, and the~~ remainder ~~of the proceeds were used for working capital and other general corporate purposes.~~

In April 2021, the Company entered into a Sales Agency Agreement between the Company and BNY Mellon Capital Markets, LLC and J.P. Morgan Securities LLC (the “Equity Shelf Program”) for the offer and sale of up to $500 million of common stock from time to time in at-the-market offerings under the related prospectus supplement filed with the SEC. There was no ac~~tivity under this multi-year program during the first quarter of 2023. Net proceeds from the sale of shares of common stock under the Equity Shelf Program are~~ intended for general corporate ~~purposes, including~~purposes. Following the ~~acquisition~~IPO, the Company owns approximately 81% of ~~property for~~ the ~~construction, completion, extension, or improvement~~outstanding shares of pipeline systems and facilities located in and around the communities served by Southwest, as well as for repayment or repurchase of indebtedness (including amounts outstanding from time to time under the credit facilities, senior notes, or other indebtedness), and to provide for working capital.Centuri common stock. The Company ~~had approximately $341.8 million available under~~intends to further reduce its ownership in Centuri in future periods through sales of its remaining Centuri shares into the ~~program as~~market, a distribution of ~~March 31, 2023. See~~ ~~Note 4 – Common Stock~~Centuri shares to Company stockholders, or through an exchange of Centuri shares for ~~more information.~~

~~Interest rates for Centuri’s term loan contain LIBOR-based rates. Certain LIBOR-based rates were discontinued as~~Southwest Gas Holdings, Inc. shares, or a benchmark or reference rate after 2021, while other LIBOR-based rates are scheduled to be discontinued after June 2023. As of March 31, 2023, the Company had $1.003 billion in aggregate outstanding borrowings under Centuri’s term loan facility. The conversion to an alternate rate is not expected to have a material impact on its financial condition or results of operations; however, the alternative rate may be less predictable or less attractive than LIBOR.combination thereof.

Forward-Looking Statements

This quarterly report contains statements which constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995 (“Reform Act”). All statements other than statements of historical fact included or incorporated by reference in this quarterly report are forward-looking statements, including, without limitation, statements regarding the Company’s plans, objectives, goals, intentions, projections, strategies, future events or performance, negotiations, and underlying assumptions. The words “may,” “if,” “will,” “should,” “could,” “expect,” “plan,” “anticipate,” “believe,” “estimate,” “predict,” “project,” “continue,” “forecast,” “intend,” “endeavor,” “promote,” “seek,” “pursue,” and similar words and expressions are generally used and intended to identify forward-looking statements. For example, statements regarding plans to refinance near-term maturities or address expiring credit facilities, those regarding separating from Centuri following the completed IPO, by means of sales into the market, a distribution to ~~spin-off~~Company stockholders, or through an exchange of Centuri ~~from~~shares for Southwest Gas Holdings, Inc. shares, or a combination thereof, and any references as to the ~~Company,~~timing of any separation of Centuri, those regarding operating margin patterns, customer growth, the composition of our customer base, price volatility, utility optimization initiatives, the level of expense or cost containment, seasonal patterns, the ability to pay debt, the Company’s COLI strategy, the magnitude of future acquisition or divestiture purchase price true-ups or post-closing payments and related impairments or losses related thereto, ~~estimates regarding contractual commitments for the MountainWest Overthrust Pipeline~~


			41

~~rate case settlement,~~ replacement market and new construction market, impacts from pandemics, including on our employees, customers, business, financial position, earnings, bad debt expense, work deployment and related uncertainties, expected impacts of valuation adjustments associated with any redeemable noncontrolling interests, the profitability of storm work, mix of work, or absorption of fixed costs by larger infrastructure services customers ~~including Southwest,~~(including Southwest), the impacts of U.S. tax reform including disposition in any regulatory proceeding and bonus depreciation tax deductions, plans and expectations regarding the tax treatment of a separation of Centuri, the impact of ~~recent~~any Pipeline and Hazardous Materials Safety Administration rulemaking, the amounts and timing for completion of estimated future construction expenditures, plans to pursue infrastructure programs or programs under SB 151 legislation, forecasted operating cash flows and results of operations, net earnings impacts or recovery of costs from gas infrastructure replacement ~~and VSP~~ programs and surcharges, funding sources of cash requirements, amounts generally expected to be reflected in future period revenues from regulatory rate proceedings including amounts requested or settled from recent and ongoing general rate cases or other regulatory proceedings, rates and surcharges, PGA administration, recovery and timing, and other rate adjustments, sufficiency of working capital and current credit facilities or the ability to cure negative working capital balances, bank lending practices, the Company’s views regarding its liquidity position, ability to raise funds and receive external financing capacity and the intent and ability to issue various financing instruments and stock under ~~the existing~~a planned at-the-market equity program or otherwise, future dividends or increases and the Board’s current payout strategy, pension and postretirement benefits, certain impacts of tax acts, the effect of any other rate changes or regulatory proceedings, contract or construction change order negotiations, impacts of accounting standard updates, statements regarding future gas prices, gas purchase contracts and pipeline imbalance charges or claims related thereto, recoverability of regulatory assets, the impact of certain legal proceedings or claims, and the timing and results of future rate hearings, including any ongoing or future general rate cases and other proceedings, and statements regarding pending approvals, including proposed regulatory mechanisms, are forward-looking statements. All forward-looking statements are intended to be subject to the safe harbor protection provided by the Reform Act.

A number of important factors affecting the business and financial results of the Company could cause actual results to differ materially from those stated in the forward-looking statements. These factors include, but are not limited to, customer growth rates, conditions in the housing market, inflation, interest rates and related government actions, sufficiency of labor markets and ability to timely hire qualified employees or similar resources, acquisition and divestiture decisions including prices paid or received, adjustments, indemnifications, or commitments related thereto, and their impacts to impairments, write-downs, or losses or expenses generally, the impacts of pandemics including that which may result from a restriction by government officials or otherwise, including impacts on employment in our territories, the health impacts to our customers and employees, the ability to collect on customer accounts due to the earlier suspension or lifted moratorium on late fees or service disconnection or otherwise in any or all jurisdictions, the ability to obtain regulatory recovery of related costs, the ability of the infrastructure services business to conduct work and the impact of a delay or termination of work, and decisions of Centuri customers (including Southwest) as to whether to pursue capital projects due to economic impacts resulting from a pandemic or


			37

otherwise, the ability to recover and timing thereof related to costs associated with the PGA mechanisms or other regulatory assets or programs, the effects of regulation/deregulation, governmental or regulatory policy regarding pipeline safety, greenhouse gas emissions, natural gas, including potential prohibitions on the use of natural gas by customers or potential customers, including related to electric generation or natural gas appliances, or regarding alternative energy, the regulatory support for ongoing infrastructure programs or expansions, the timing and amount of rate relief, the impact of other regulatory proceedings, ~~including with regard to the MountainWest Overthrust Section 5 rate case before the FERC,~~ the timing and methods determined by regulators to refund amounts to customers resulting from U.S. tax reform, changes in rate design, impacts of other tax regulations, including industry-specific tax regulations, variability in volume of gas or transportation service sold to customers, changes in gas procurement practices, changes in capital requirements and funding, the impact of credit rating actions and conditions in the capital markets on financing costs, ~~the impact of variable rate indebtedness with a discontinuance of LIBOR including in relation to amounts of indebtedness then outstanding,~~ changes in construction expenditures and financing, levels of or changes in operations and maintenance expenses, or other costs, including fuel costs and other costs impacted by inflation or otherwise, the results of any cost containment efforts, geopolitical influences on the business or its costs, effects of pension or other postretirement benefit expense forecasts or plan modifications, accounting changes and regulatory treatment related thereto, currently unresolved and future liability claims and disputes, changes in pipeline capacity for the transportation of gas and related costs, results of Centuri bid work, the impact of weather, delays, or customer budgetary plans on Centuri’s operations, projections about acquired business’ earnings, or those that may be planned, future acquisition-related costs, differences between the actual experience and projections in costs to integrate or stand-up portions of newly acquired business operations, impacts of changes in the value of any redeemable noncontrolling interests if at other than fair value, Centuri utility infrastructure expenses, differences between actual and originally expected outcomes of Centuri bid or other fixed-price construction agreements, outcomes from contract and change order negotiations, ability to successfully procure new work and impacts from work awarded or failing to be awarded from significant customers (collectively, including from Southwest) or related to significant projects, the mix of work awarded, the amount of work awarded to Centuri following the lifting of work stoppages or reduction, the result of productivity inefficiencies from regulatory requirements or efficiencies in performing storm-related or other types of work, the frequency or amount of work associated with storms, customer supply chain challenges, or otherwise, delays or challenges in commissioning individual projects, acquisitions and management’s plans related thereto, the ability of management to


			42

successfully finance, close, and assimilate any acquired businesses, the timing and ability of management to successfully consummate the Centuri ~~spin-off,~~separation following the completed IPO, the impact on our stock price or our credit ratings due to undertaking or failing to undertake acquisition or divestiture activities or other strategic endeavors, the impact on our stock price, costs, actions or disruptions or continuation thereof related to significant stockholders and their activism, competition, our ability to raise capital in external financings, our ability to continue to remain within the ratios and other limits subject to our debt covenants, and ongoing evaluations in regard to goodwill, ~~and~~ other intangible ~~assets.~~assets, and optimization initiatives. In addition, the Company can provide no assurance that its discussions regarding certain trends or plans relating to its financing and operating expenses will continue, proceed as planned, or cease to continue, or fail to be alleviated, in future periods. For additional information on the risks associated with the Company’s business, see Item 1A. Risk Factors and Item 7A. Quantitative and Qualitative Disclosures About Market Risk in the Annual Report on Form 10-K for the year ended December 31, ~~2022.~~2023.

All forward-looking statements in this quarterly report are made as of the date hereof, based on information available to the Company and Southwest as of the date hereof, and the Company and Southwest assume no obligation to update or revise any of its forward-looking statements, even if experience or future changes show that the indicated results or events will not be realized. We caution you not to unduly rely on any forward-looking statement(s).

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

See Item 7A. Quantitative and Qualitative Disclosures about Market Risk in the ~~2022~~2023 Annual Report on Form 10-K filed with the SEC. No material changes have occurred related to the disclosures about market ~~risk.~~risk since December 31, 2023.


			38

ITEM 4. CONTROLS AND PROCEDURES

Management of Southwest Gas Holdings, Inc. and Southwest Gas Corporation has established disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”)) that are designed to provide reasonable assurance that information required to be disclosed in their respective reports filed or submitted under the Exchange Act is recorded, processed, summarized, and reported within the time periods specified in the SEC’s rules and forms and to provide reasonable assurance that such information is accumulated and communicated to management of each company, including each respective Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosures. A control system, no matter how well conceived and operated, can provide only reasonable, not absolute, assurance that the objectives of the control system are met. Further, the design of a control system must reflect the fact that there are resource constraints, and benefits of controls must be considered relative to their costs. Additionally, controls can be circumvented by the individual acts of some persons, by collusion of two or more people, or management override of the control. Because of the inherent limitations in a cost-effective control system, misstatements due to error or fraud may occur and may not be detected.

Based on the most recent evaluation, as of March 31, ~~2023,~~2024, management of Southwest Gas Holdings, Inc. and Southwest Gas Corporation, including the Chief Executive Officer and Chief Financial Officer, believes the Company’s and Southwest’s disclosure controls and procedures are effective at attaining the level of reasonable assurance noted above.

There have been no changes in the Company’s or Southwest’s internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) of the Exchange Act) during the first quarter of ~~2023~~2024 that have materially affected, or are likely to materially affect the Company’s internal control over financial reporting.

PART II - OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

The Company and Southwest are named as defendants in various legal proceedings. The ultimate dispositions of these proceedings are not presently determinable; however, it is the opinion of management that none of these legal proceedings individually or in the aggregate will have a material adverse impact on the Company’s or Southwest’s financial position or results of operations.

ITEM 1A through 3. None.

ITEM 4. MINE SAFETY DISCLOSURES Not applicable.

ITEM 5. OTHER INFORMATION ~~None.~~

During the fiscal quarter ended March 31, 2024, none of our directors or Section 16 officers informed us of the adoption or termination of a “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement,” as those terms are defined in Regulation S-K, Item 408.


			4339

ITEM 6. EXHIBITS

The following documents are filed, or furnished, as applicable, as part of this report on Form 10-Q:

~~Exhibit 4.01~~

Fifth Supplemental Indenture, dated March 23, 2023, by and between Southwest Gas Corporation and The Bank of New York Mellon Trust Company, N.A., as Trustee. Incorporated herein by reference to Exhibit 4.1 to Form 8-K dated March 21, 2023. File Nos. 001-37976 and 001-07850.

~~Exhibit 4.02~~

~~Form of 5.450% Senior Note due 2028. Incorporated herein by reference to Exhibit 4.2 to Form 8-K dated March 21, 2023. File Nos. 001-37976 and 001-07850.~~

Exhibit 10.1

~~Term Loan~~Amendment No.4 to Second Amended and Restated Centuri Credit Agreement . Incorporated herein by reference to Exhibit 10.1 to F orm 8 -K dated March 22, 2024. File No . 001-37976 .

Exhibit 10.2

Separation Agreement, dated as of April ~~17, 2023,~~11, 2024, by and ~~among~~between Southwest Gas Holding, Inc. and Centuri Holdings, Inc., the lenders from time to time party thereto, JPMorgan Chase Bank, N.A., as Administrative Agent, Bank of America, N.A. as Syndication Agent, JPMorgan Chase Bank, N.A., BofA Securities, Inc., Wells Fargo Bank, N.A. and U.S. Bank, National Association as Joint Lead Arrangers and Joint Bookrunners, and Wells Fargo Bank, N.A. and U.S. Bank, National Association as Co-Documentation Agents. Incorporated herein by reference to Exhibit 10.1 to Form 8-K dated April ~~17, 2023.~~11, 2024. File ~~Nos. 001-37976 and 001-07850.~~No. 001-37976.

~~Exhibit 10.2~~

Grant Agreement for Time-Lapse Restricted Stock Units Under the Southwest Gas Holdings, Inc. Omnibus Incentive Plan. Incorporated herein by reference to Exhibit 10.1 to Form 8-K dated March 29, 2023. File Nos. 001-37976 and 001-07850.

Exhibit 10.3

~~Performance Share Unit Grant~~Tax Matters Agreement, ~~Under the~~dated as of April 11, 2024, by and between Southwest Gas Holding, Inc. and Centuri Holdings, Inc. ~~Omnibus Incentive Plan (UNI/ROE Shares).~~ Incorporated herein by reference to Exhibit 10.2 to Form 8-K dated ~~March 29, 2023.~~April 11, 2024. File ~~Nos. 001-37976 and 001-07850.~~No. 001-37976.

Exhibit 10.4

~~Performance Share Unit Grant~~Registration Rights Agreement, ~~Under the~~dated as of April 11, 2024, by and between Southwest Gas Holding, Inc. and Centuri Holdings, Inc. ~~Omnibus Incentive Plan (EPS/ROE Shares).~~ Incorporated herein by reference to Exhibit 10.3 to Form 8-K dated ~~March 29, 2023.~~April 11, 2024. File ~~Nos. 001-37976 and 001-07850.~~No. 001-37976.

~~Exhibit 10.5~~

~~Centuri Grant Agreement for Time-Lapse Restricted Stock Units Under the Southwest Gas Holdings, Inc. Omnibus Incentive Plan. Incorporated herein by reference to Exhibit 10.4 to Form 8-K dated March29, 2023. File Nos. 001-37976 and 001-07850.~~

~~Exhibit 10.6~~

Centuri Performance Share Unit Grant Agreement Under the Southwest Gas Holdings, Inc. Omnibus Incentive Plan. Incorporated herein by reference to Exhibit 10.5 to Form 8-K dated March 29, 2023. File Nos. 001-37976 and 001-07850.

~~Exhibit 10.7~~

~~Amendment No. 2 to the Southwest Gas Holdings, Inc. Credit Facility. Incorporated herein by reference to Exhibit 10.1 to Form 8-K dated April 25, 2023. File Nos. 001-37976 and 001-07850.~~

Exhibit 31.01#

Section 302 Certifications–Southwest Gas Holdings, Inc.

Exhibit 31.02#

Section 302 Certifications–Southwest Gas Corporation

Exhibit 32.01#

Section 906 Certifications–Southwest Gas Holdings, Inc.

Exhibit 32.02#

Section 906 Certifications–Southwest Gas Corporation

Exhibit 101#

The following materials from the Quarterly Report on Form 10-Q of Southwest Gas Holdings, Inc. and Southwest Gas Corporation for the quarter ended March 31, ~~2023,~~2024, were formatted in Inline XBRL (Extensible Business Reporting Language): (1) Southwest Gas Holdings, Inc. and Subsidiaries Condensed Consolidated Balance Sheets, (ii) Southwest Gas Holdings, Inc. and Subsidiaries Condensed Consolidated Statements of Income, (iii) Southwest Gas Holdings, Inc. and Subsidiaries Condensed Consolidated Statements of Comprehensive Income, (iv) Southwest Gas Holdings, Inc. and Subsidiaries Condensed Consolidated Statements of Cash Flows, (v) Southwest Gas Holdings, Inc. and Subsidiaries Condensed Consolidated Statements of Equity, (vi) Southwest Gas Corporation and Subsidiaries Condensed Consolidated Balance Sheets, (vii) Southwest Gas Corporation and Subsidiaries Condensed Consolidated Statements of Income, (viii) Southwest Gas Corporation and Subsidiaries Condensed Consolidated Statements of Comprehensive Income, (ix) Southwest Gas Corporation and Subsidiaries Condensed Consolidated Statements of Cash Flows, (x) Southwest Gas Corporation and Subsidiaries Condensed Consolidated Statements of Equity. The instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.

104#

Cover Page Interactive Data File (embedded within the Inline XBRL document).

# Filed herewith.


			4440

SIGNATURES

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



Southwest Gas Holdings, Inc.
(Registrant)

Dated: May ~~9, 2023~~8, 2024



/s/ LORI L. COLVIN
Lori L. Colvin
Vice President/Controller and Chief Accounting Officer

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



Southwest Gas Corporation
(Registrant)

Dated: May ~~9, 2023~~8, 2024



/s/ LORI L. COLVIN
Lori L. Colvin
Vice President/Controller and Chief Accounting Officer


			4541


	Three Months Ended March 31, 2023						Three Months Ended March 31, 2022
(Thousands of dollars)	Before- Tax Amount		Tax (Expense) or Benefit (1)		Net-of- Tax Amount		Before- Tax Amount		Tax (Expense) or Benefit (1)		Net-of- Tax Amount
Defined benefit pension plans:
Amortization of prior service cost	$	44	$	(11)	$	33	$	44	$	(11)	$	33
Amortization of net actuarial (gain)/loss	333		(80)		253		8,705		(2,089)		6,616
Regulatory adjustment	(119)		29		(90)		(7,268)		1,745		(5,523)
Pension plans other comprehensive income (loss)	258		(62)		196		1,481		(355)		1,126
FSIRS (designated hedging activities):
Amounts reclassified into net income	—		—		—		545		(129)		416
FSIRS other comprehensive income (loss)	—		—		—		545		(129)		416
Total other comprehensive income (loss) - Southwest Gas Corporation	258		(62)		196		2,026		(484)		1,542
Foreign currency translation adjustments:
Translation adjustments	97		—		97		1,247		—		1,247
Foreign currency other comprehensive income (loss)	97		—		97		1,247		—		1,247
Total other comprehensive income (loss) - Southwest Gas Holdings, Inc.	$	355	$	(62)	$	293	$	3,273	$	(484)	$	2,789


	Twelve Months Ended March 31, 2023						Twelve Months Ended March 31, 2022
(Thousands of dollars)	Before- Tax Amount		Tax (Expense) or Benefit (1)		Net-of- Tax Amount		Before- Tax Amount		Tax (Expense) or Benefit (1)		Net-of- Tax Amount
Defined benefit pension plans:
Net actuarial gain/(loss)	$	4,079	$	(980)	$	3,099	$	59,176	$	(14,202)	$	44,974
Amortization of prior service cost	175		(42)		133		763		(183)		580
Amortization of net actuarial (gain)/loss	26,446		(6,348)		20,098		42,153		(10,117)		32,036

Regulatory adjustment	(21,083)		5,059		(16,024)		(85,887)		20,614		(65,273)
Pension plans other comprehensive income (loss)	9,617		(2,311)		7,306		16,205		(3,888)		12,317
FSIRS (designated hedging activities):
Amounts reclassified into net income	—		—		—		2,175		(520)		1,655
FSIRS other comprehensive income (loss)	—		—		—		2,175		(520)		1,655
Total other comprehensive income (loss) - Southwest Gas Corporation	9,617		(2,311)		7,306		18,380		(4,408)		13,972
Foreign currency translation adjustments:
Translation adjustments	(7,283)		—		(7,283)		444		—		444
Foreign currency other comprehensive income (loss)	(7,283)		—		(7,283)		444		—		444
Total other comprehensive income (loss) - Southwest Gas Holdings, Inc.	$	2,334	$	(2,311)	$	23	$	18,824	$	(4,408)	$	14,416


	Period Ended March 31,
	Three Months				Twelve Months
(In thousands, except per share amounts)	2023		2022		2023		2022
Contribution to net income (loss)
Natural gas distribution	$	134,696	$	111,795	$	177,281	$	180,215
Utility infrastructure services	(11,872)		(23,486)		13,679		17,793
Pipeline and storage	(16,288)		16,930		(316,951)		16,930
Corporate and administrative	(60,625)		(9,061)		(127,566)		(35,274)
Net income (loss)	$	45,911	$	96,178	$	(253,557)	$	179,664

Weighted average common shares	68,265		60,737		67,413		59,919
Basic earnings (loss) per share
Consolidated	$	0.67	$	1.58	$	(3.76)	$	3.00

Natural Gas Distribution
Reconciliation of Gross Margin to Operating Margin (Non-GAAP measure)
Utility Gross Margin	$	259,364	$	233,882	$	597,222	$	571,051
Plus:
Operations and maintenance (excluding Admin. & General) expense	79,696		73,422		317,344		276,525
Depreciation and amortization expense	74,650		72,114		265,579		256,814
Operating margin	$	413,710	$	379,418	$	1,180,145	$	1,104,390