Segment Information

9 Months Ended

Sep. 30, 2021

Segment Reporting [Abstract]

Segment Information

Note 7 – Segment Information

The Company has two reportable segments: natural gas operations and utility infrastructure services. Southwest has a single reportable segment that is referred to herein as the natural gas operations segment of the Company.

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

(Thousands of dollars)	September 30, 2021		December 31, 2020
Centuri accounts receivable for services provided to Southwest	$	15,376	$	13,956

Utility infrastructure services total assets increased significantly since December 31, 2020, primarily due to Centuri’s acquisition of Riggs Distler (see Note 8 - Business Acquisitions), as follows:

(Thousands of dollars)	September 30, 2021		December 31, 2020
Centuri segment assets	$	2,671,974	$	1,475,237

In order to reconcile (below) to net income 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 operations and utility infrastructure services segments is as follows:

(Thousands of dollars)	Natural Gas Operations		Utility Infrastructure Services		Other		Total
Three Months Ended September 30, 2021
Revenues from external customers	$	255,848	$	606,006	$	—	$	861,854
Intersegment revenues	—		26,842		—		26,842
Total	$	255,848	$	632,848	$	—	$	888,696
Segment net income (loss)	$	(27,544)	$	18,540	$	(2,572)	$	(11,576)
Three Months Ended September 30, 2020
Revenues from external customers	$	210,834	$	548,300	$	—	$	759,134
Intersegment revenues	—		32,092		—		32,092
Total	$	210,834	$	580,392	$	—	$	791,226
Segment net income (loss)	$	(15,973)	$	34,873	$	(627)	$	18,273
(Thousands of dollars)	Natural Gas Operations		Utility Infrastructure Services		Other		Total
Nine Months Ended September 30, 2021
Revenues from external customers	$	1,070,576	$	1,450,719	$	—	$	2,521,295
Intersegment revenues	—		74,729		—		74,729
Total	$	1,070,576	$	1,525,448	$	—	$	2,596,024
Segment net income (loss)	$	102,584	$	32,797	$	(4,545)	$	130,836
Nine Months Ended September 30, 2020
Revenues from external customers	$	976,095	$	1,306,481	$	—	$	2,282,576
Intersegment revenues	—		102,217		—		102,217
Total	$	976,095	$	1,408,698	$	—	$	2,384,793
Segment net income (loss)	$	79,568	$	50,936	$	(1,724)	$	128,780

(Thousands of dollars)	Natural Gas Operations		Utility Infrastructure Services		Other		Total
Twelve Months Ended September 30, 2021
Revenues from external customers	$	1,445,066	$	1,957,667	$	—	$	3,402,733
Intersegment revenues	—		107,371		—		107,371
Total	$	1,445,066	$	2,065,038	$	—	$	3,510,104
Segment net income (loss)	$	182,134	$	56,723	$	(4,477)	$	234,380
Twelve Months Ended September 30, 2020
Revenues from external customers	$	1,355,666	$	1,738,430	$	—	$	3,094,096
Intersegment revenues	—		138,834		—		138,834
Total	$	1,355,666	$	1,877,264	$	—	$	3,232,930
Segment net income (loss)	$	155,993	$	66,615	$	(2,110)	$	220,498