EXHIBIT 21.01
SOUTHWEST GAS HOLDINGS, INC.
LIST OF SUBSIDIARIES OF THE REGISTRANT
AT DECEMBER 31, 2022
SUBSIDIARY NAME | STATE OF INCORPORATION OR ORGANIZATION TYPE | ||||||||||
Southwest Gas Holdings, Inc. | Delaware | ||||||||||
Southwest Gas Utility Group, Inc. | California | ||||||||||
Southwest Gas Corporation | California | ||||||||||
Utility Financial Corp. | Nevada | ||||||||||
The Southwest Companies | Nevada | ||||||||||
Southwest Gas Transmission Company | Limited partnership between Southwest Gas Corporation and Utility Financial Corp. | ||||||||||
Great Basin Gas Transmission Company | Nevada | ||||||||||
MountainWest Pipelines Holding Company | Delaware | ||||||||||
MountainWest Pipeline, LLC | Utah | ||||||||||
MountainWest Energy Holding Company, LLC | Utah | ||||||||||
MountainWest Southern Trails Pipeline Company | Utah | ||||||||||
MountainWest Energy Services, Inc. | Utah | ||||||||||
MountainWest Overthrust Pipeline, LLC | Utah | ||||||||||
MountainWest Pipeline Services, Inc. | Utah | ||||||||||
MountainWest Field Services, LLC | Utah | ||||||||||
MountainWest White River Hub, LLC | Utah | ||||||||||
White River Hub, LLC | Delaware | ||||||||||
Carson Water Company | Nevada | ||||||||||
Centuri Group, Inc. | Nevada | ||||||||||
Centuri U.S. Division, Inc. | Nevada | ||||||||||
Centuri Oil & Gas Group LLC | Delaware | ||||||||||
Oil & Gas Division LLC | Delaware | ||||||||||
NPL Construction Co. | Nevada | ||||||||||
Southwest Administrators, Inc. | Nevada | ||||||||||
NPL East LLC | Delaware | ||||||||||
NPL Great Lakes LLC | Delaware | ||||||||||
NPL Mid-America LLC | Delaware | ||||||||||
NPL West LLC | Delaware | ||||||||||
National Barricade LLC | Nevada | ||||||||||
Intellichoice Energy, LLC | Delaware | ||||||||||
Intellichoice Energy of California, LLC | Delaware | ||||||||||
Meritus Oil & Gas Division LLC | Delaware | ||||||||||
Canyon Pipeline Construction, Inc. | Nevada | ||||||||||
Canyon Traffic Control LLC | Nevada | ||||||||||
Canyon Special Projects LLC | Nevada |
New England Utility Constructors, Inc. | Massachusetts | ||||||||||
Neuco Equipment LLC | Nevada | ||||||||||
Centuri Power Group LLC | Delaware | ||||||||||
Meritus Electric T&D Division LLC | Delaware | ||||||||||
Linetec Services, LLC | Delaware | ||||||||||
Electric T&D Division LLC | Delaware | ||||||||||
National Powerline LLC | Delaware | ||||||||||
Electric T&D Holdings LLC | Delaware | ||||||||||
Drum Parent LLC | Delaware | ||||||||||
NAPEC Inc. | Delaware | ||||||||||
CVTech Holding Inc. | Delaware | ||||||||||
Riggs Distler & Company, Inc. | Maryland | ||||||||||
VRO Construction Partners 1, LLC | New Jersey | ||||||||||
Shelby Mechanical LLC | Delaware | ||||||||||
Shelby Plumbing, LLC | New Jersey | ||||||||||
Centuri Services Group LLC | Delaware | ||||||||||
Services Division LLC | Delaware | ||||||||||
Meritus Services Division LLC | Delaware | ||||||||||
Centuri Canada Division Inc. | Ontario, Canada | ||||||||||
NPL Canada Ltd. | Ontario, Canada | ||||||||||
W.S. Nicholls Construction Inc. | Ontario, Canada | ||||||||||
W.S. Nicholls Western Construction Ltd. | Federal, Canada | ||||||||||