UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549


 FORM10-K

ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF

THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended December 31, 2016

Commission File Number 1-07850

SOUTHWEST GAS CORPORATION

(Exact name of registrant as specified in its charter)

California88-0085720

(State or other jurisdiction of

incorporation or organization)

(I.R.S. Employer

Identification No.)

ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the fiscal period ended December 31, 2019
OR
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
 
  
5241 Spring Mountain Road

 
 
 
 
    
 
 
  
Post Office Box 98510

Las Vegas, Nevada

 
89193-8510
 
 
 
    
 
(Address of principal executive offices)
 
  
(Zip Code)
Las Vegas,
Nevada
89193-8510
 
 
    
 
 
  
(702)
876-7237
 
 
 
    
 
 
  
 
 
 
 
 
    
 
1-7850
  
Southwest Gas Corporation
 
 
 
California
    
88-0085720
 
  
5241 Spring Mountain Road
 
 
 
 
    
 
 
  
Post Office Box 98510
 
 
 
 
    
 
 
  
Las Vegas,
Nevada
89193-8510
 
 
    
 
 
  
(702)
876-7237
 
 
 
    
 

Registrant’s telephone number, including area code:(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., the successor company to Southwest Gas Corporation Common Stock, $1 par value
SWX
New York Stock Exchange Inc.

 
Securities registered pursuant to Section 12(g) of the Act: None
Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.Yes      No  

Southwest Gas Holdings, Inc.
  
Yes
No
Southwest Gas Corporation
  
Yes
No
Indicate by check mark if each registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.    Yes      No

  

Indicate by check mark whether each registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such 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 and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of RegulationS-T (§ 229.405 (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). Yes   ☑  ☒    No  ☐

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of RegulationS-K is not contained herein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form10-K or any amendment to thisForm 10-K.  

  ☐

Indicate by check mark whether theeach registrant is a large accelerated filer, an accelerated filer, anon-accelerated filer, or a smaller reporting company, or an emerging growth company. See the definitions of “large“large accelerated filer,” “accelerated filer”” “accelerated filer,” “smaller reporting company,” and “smaller reporting company”“emerging growth company” in Rule12b-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.  ☐
Non-accelerated filer
Southwest Gas Corporation:
  
 
 
 
 
 
 
 
 
 
 
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.  ☐
Indicate by check mark whether each registrant is a shell company (as defined in Rule12b-2 of the Exchange Act).    Yes  ☐          No  ☑

  ☒

Aggregate market value of the voting andnon-voting common stock held by nonaffiliates of the registrant Southwest Gas Corporation, the predecessor company to
Southwest Gas Holdings, Inc.:

$3,736,883,5014,868,267,468 as of June 30, 2016

2019

The number of shares outstanding of Southwest Gas Holdings, Inc., the successor company to Southwest Gas Corporation, common stock:

Common Stock, $1 Par Value, 47,546,82555,056,613 shares as of February 15, 2017

18, 2020

All of the outstanding shares of common stock ($1 par value) of Southwest Gas Corporation were held by Southwest Gas Holdings, Inc. as of February 15, 2017.

18, 2020.

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

 

Description

 

Part Into Which Incorporated

Annual Report to ShareholdersStockholders for the Year Ended 
December 31, 2016

Southwest Gas Holdings, Inc. 20172019

2020 Proxy Statement

 

Parts I, II, and IV


Part III






TABLE OF CONTENTS

Item 1.

 

BUSINESS

1
 
 

 
 
Item 1.
 
 

 

 

3
 

4
 

5
 

6
Item 1A.

7

CONSTRUCTION SERVICES

7

Item 1A.

RISK FACTORS

8

Item 1B.

13

Item 2.

13

Item 3.

13

Item 4.

13

Item 4A.

14

PART II

 
14
 

Item 5.

14

Item 6.

14

Item 7.

14

Item 7A.

14

Item 8.

15

Item 9.

15

Item 9A.

15

Item 9B.

16

PART III

 
17
 

Item 10.

17

Item 11.

18

Item 12.

18

Item 13.

19

Item 14.

19

PART IV

 
20
 

Item 15.

20
Item 16.

 
 
21

Item 16.

 

FORM 10–K SUMMARY

20
 



PART I

Item 1.

BUSINESS

In 2015, the Board of Directors (“Board”) of Southwest Gas Corporation authorized management to evaluate and pursue



FILING FORMAT
This annual report on Form 10-K is a holding company reorganization to provide further separation between regulated and unregulated businesses, and to provide additional financing flexibility. As part of the holding company reorganization, Centuri Construction Group, Inc. (“Centuri”) and Southwest Gas Corporation would each be subsidiaries of the new publicly traded parent holding company, Southwest Gas Holdings, Inc. (“Southwest Gas Holdings”); whereas, historically, Centuri had been a direct subsidiary of Southwest Gas Corporation. All of Southwest Gas Corporation’s outstanding debt securities (not associated with Centuri) at the time of the reorganization would remain at the Southwest Gas utility entity. Regulatory applications for preapproval of the reorganization werecombined report being filed with the Arizona Corporation Commission (“ACC”), the California Public Utilities Commission (“CPUC”), and the Public Utilities Commission of Nevada (“PUCN”) in October 2015. Approvals were received from the CPUC, the PUCN, and the ACC in January, March, and May, respectively, of 2016. The reorganization, which was approved by the Board of Directors in December 2016, became effective in January 2017. Each outstanding share of Southwest Gas Corporation’s common stock automatically converted into a share of stock in Southwest Gas Holdings, on aone-for-one basis, and the ticker symbol of the stock, “SWX,” remains unchanged. This report is as of the balance sheet date of December 31, 2016 and periods up to that date (prior to the effective date of the holding company formation), with disclosures, where appropriate, for events following that date. Throughout this report, the “Company” refers to Southwest Gas Corporation and subsidiaries for periods prior to January 1, 2017 and totwo 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 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 II—Item 8. Financial statements and supplementary data in this Annual Report on Form 10-K includes separate financial statements (i.e., balance sheets, statements of income, statements of comprehensive income, statements of cash flows, and statements of equity) for periods subsequentSouthwest Gas Holdings, Inc. and Southwest Gas Corporation, in that order. The notes to December 31, 2016.

consolidated financial statements are presented on a combined basis for both entities. All Items other than Part II – Item 8 are combined for the reporting companies.

PART I
Item 1.
BUSINESS
Southwest Gas Holdings, Inc., a Delaware corporation, is a holding company headquartered in Las Vegas, Nevada, which either on its own or together with its subsidiaries is referred to herein as the “Company.” Through its wholly owned subsidiaries, Southwest Gas Corporation (“Southwest” or the “natural gas operations” segment) and Centuri Group, Inc. (“Centuri” or the “utility infrastructure services” segment), the Company operates two business segments: natural gas operations and utility infrastructure services. At the annual meeting of stockholders of Southwest Gas Holdings, Inc., held on May 2, 2019, stockholders voted to approve changing the state of incorporation of Southwest Gas Holdings, Inc. from California to Delaware. The Companyreincorporation was effective as of September 20, 2019. Southwest continues to be incorporated in the state of California.
Southwest was incorporated in March 1931 under the laws of the state of California. The Company is composed of two business segments:California and provides regulated natural gas operations (“Southwest” or the “natural gas operations” segment) and construction services.

Southwest is engaged in the business of purchasing, distributing, and transporting natural gas fordelivery services to customers in portions of Arizona, Nevada, and California. Public utility rates, practices, facilities, and service territories of Southwest isare subject to regulatory oversight. The timing and amount of rate relief can materially impact results of operations. Natural gas purchases and the largest distributortiming of related recoveries can materially impact liquidity. Results for the natural gas operations segment are higher during winter periods due to the seasonality incorporated in Arizona, selling and transporting natural gas in most of central and southern Arizona, including the Phoenix and Tucson metropolitan areas. Southwest is also the largest distributor of natural gas in Nevada, serving the Las Vegas metropolitan area and northern Nevada. In addition, Southwest distributes and transports natural gas for customers in portions of California, including the Lake Tahoe area and the high desert and mountain areas in San Bernardino County.

its regulatory rate structures.

Centuri (the “construction services” segment), a 96.6% owned subsidiary of the Company, is a comprehensive constructionutility infrastructure services enterprise dedicated to meeting the growing demandsdelivering a diverse array of solutions to North American utilities, energyAmerica’s gas and industrial markets.electric providers. Centuri derives revenue from installation, replacement, repair, and maintenance of energy distribution systems, and developing industrial construction solutions primarily for energy services utilities.solutions. Centuri operations are generally conducted under the business names of NPL Construction Co. (“NPL”(“NPL”), NPL Canada Ltd. (“(“NPL Canada”, formerly Link-Line Contractors Ltd.Canada”), W.S. Nicholls Construction,New England Utility Constructors, Inc. and related companies (“W.S. Nicholls”(“Neuco”), and Brigadier Pipelines Inc. (“Brigadier”Linetec Services, LLC (“Linetec”). In May 2016,November 2017, Centuri completedexpanded its operations in the northeast region of the U.S. through the acquisition of two privately held, affiliated construction businesses: Enterprise Trenchless Technologies, Inc.Neuco, and ETTI Holdings (collectively, “ETTI”).

again in November 2018, in the southeast region of the U.S. through the acquisition of an 80% interest in Linetec. Centuri results are also seasonal with lower revenues during the first quarter of the year due to unfavorable winter weather conditions. Operating revenues typically improve as more favorable weather conditions occur during the summer and fall months.

Financial information concerning the Company’sCompany’s business segments is included in Note 14 - Segment Informationof the Notesnotes to Consolidated Financial Statements,consolidated financial statements, which is included in the 20162019 Annual Report to ShareholdersStockholders and is incorporated herein by reference.

Southwest Gas Holdings maintains a website (www.swgasholdings.com) for the benefit of shareholders,stockholders, investors, customers, and other interested parties. Similarly, Southwest maintains a website (www.swgas.com) mainly focused on utility operations. The annual report on Form10-K, quarterly reports on Form10-Q, current reports onForm 8-K, and all amendments to those reports are available, free of charge, through the www.swgasholdings.com website as soon as reasonably practicable after such material is electronically filed with, or furnished to, the Securities and Exchange Commission (“SEC”(the “SEC”). All Company SEC filings are also available on the www.swgasholdings.com website. Nothing included on our website shall be deemed to be a part of the annual report on Form 10-K. The Corporate Governance Guidelines, Code of Business Conduct and Ethics, and charters of the nominatingNominating and corporate governance, audit,Corporate Governance, Audit, and compensation committeesCompensation Committees of the boardBoard of directorsDirectors of the Company are also available on the www.swgasholdings.com website. Print versions of these documents are available to shareholdersstockholders upon request directed to the Corporate Secretary, Southwest Gas Holdings, Inc., 5241 Spring Mountain Road, Las Vegas, NV 89150.


 
1
 



NATURAL GAS OPERATIONS

General Description

Southwest is subject to regulation by the Arizona Corporation Commission (the “ACC”), the Public Utilities Commission of Nevada (the “PUCN”), and the CPUC.California Public Utilities Commission (the “CPUC”). These commissions regulate public utility rates, practices, facilities, and service territories in their respective states. The CPUC also regulates the issuance of all debt securities by Southwest, with the exception of short-term borrowings. Certain accounting practices, transmission facilities, and rates are subject to regulation by the Federal Energy Regulatory Commission (“FERC”(the “FERC”). Centuri, by contrast, is not regulated by the state utilities commissions or by the FERC in any of its operating areas.

As of December 31, 2016,2019, Southwest purchased and distributed or transported natural gas to 1,984,0002,081,000 residential, commercial, and industrial customers in geographically diverse portions of Arizona, Nevada, and California. Southwest added 28,00034,000 net new customers during 2016.2019. Southwest expects similar customer growth in 2017.

2020.

The table below lists the percentage of operating margin (operating revenues less net cost of gas) by major customer class for the years indicated:

For the Year Ended

  Distribution Transportation
  Residential and
Small Commercial
 Other Sales
Customers
 

December 31, 2016

  85% 3% 12%

December 31, 2015

  85% 4% 11%

December 31, 2014

  85% 4% 11%

 
 
Distribution
 
 
For the Year Ended December 31,
 
Residential and
Small Commercial
 
Other Sales
Customers
 
Transportation
2019
 
84
%
 
3
%
 
13
%
2018
 
85
%
 
3
%
 
12
%
2017
 
85
%
 
3
%
 
12
%
Southwest is not dependent on any one or a few customers such that the loss of any one or several would have a significant adverse impact on earnings or cash flows. See Risk Factors below regarding impacts in the event of loss of significant customers in the construction services segment.

Transportation of customer-secured gas toend-users accounted for 47%44% of total system throughput in 2016,2019, but only 12%13% of operating margin as shown in the table above. Customers who utilized this service transported 97101 million dekatherms in 2016, 1042019, 105 million dekatherms in 2015,2018, and 9197 million dekatherms in 2014.

2017.

The demand for natural gas is seasonal, with greater demand in the colder winter months and decreased demand in the warmer summer months. It is the opinion of management that comparisons of earnings for interim periods do not reliably reflect overall trends and changes in operations.operations due to this seasonality. The decoupled rate mechanisms in place in the three-state service territory, as described below, are structured with seasonal variations. Also, earnings for interim periods can be significantly affected by the timing of general rate relief.

Rates and Regulation

Rates that Southwest is authorized to charge its distribution system customers are determined by the ACC, PUCN, and CPUC in general rate cases and are derived using rate base, cost of service, and cost of capital experienced in an historical test year, as adjusted in Arizona and Nevada, and projected for a future test year in California. The FERC regulates the northern Nevada transmission and liquefied natural gas (“LNG”(“LNG”) storage facilities of Paiute Pipeline Company (“Paiute”(“Paiute”), a wholly owned subsidiary, and the rates it charges for transportation of gas directly to certainend-users and to various local distribution companies (“LDCs”(“LDCs”). The LDCs transporting on the Paiute system are: NV Energy (serving Reno and Sparks, Nevada) and Southwest (serving Truckee, South and North Lake Tahoe in California, and various locations throughout northern Nevada).

Rates charged to customers vary according to customer class and rate jurisdiction and are set at levels that are intended to allow for the recovery of all prudently incurredcommission-approved costs, including a return on rate base sufficient to pay interest on debt as well as a reasonable return on common equity. Rate base consists generally of the original cost of utility plant in service, net of amounts associated with costs borne by third parties, plus certain other assets such as working capital and inventories, less accumulated depreciation on utility plant in service, net deferred income tax liabilities, and certain other deductions.

Rate structures in all service territories allow Southwest to separate or “decouple”“decouple” the recovery of operating margin from natural gas consumption, though decoupled structures (alternative revenue programs), vary by state. In California, authorized operating margin levels vary by month. In Nevada aand Arizona, the decoupled rate structure appliesstructures apply to most customer classes providingon the basis of margin per customer, which varies by month. Collectively, these mechanisms provide stability in annual operating margin. In Arizona, a full revenue decoupling mechanism (currently, with a winter-period monthly weather adjuster) is in place for most customer classes.

Rate schedules in all service areas contain deferred energy or purchased gas adjustment provisions, which allow Southwest to file for rate adjustments as the cost of purchased gas changes. Deferred energy and purchased gas adjustment (collectively “PGA”“PGA”) rate changes affect cash flows, but have no direct impact on profit margin. Filings to change rates in accordance with PGA clauses are subject to audit by the appropriate state regulatory commission staff.


 
2
 



Information with respect to recent general rate cases, and PGA filings, and other regulatory proceedings is included in the Rates and Regulatory Proceedings section of Management’sManagement’s Discussion and Analysis (“(“MD&A”&A”) in, which is incorporated by reference herein and included within the 20162019 Annual Report to Shareholders.

Stockholders.

The table below lists recent docketed general rate filings and the status of such filing within each ratemaking area:

Ratemaking Area

  

Type of Filing

  

Month Filed

  

Month Final Rates
Effective

Arizona:

Arizona
  
General rate case
  
May 20162019
  
Pending

California:

  
 
  
 
  
 

Northern, Southern, and South Lake Tahoe
  
Annual attrition
  
November 2019
  
January 2020
Northern, Southern, and South Lake Tahoe
  
General rate case
  
August 2019
  
Pending
Nevada:
  
 
  
 
  
 
Northern and Southern

  
Annual attritionNovember 2016January 2017

Northern and Southern

General rate case
  
December 2012
May 2018*
  
June 2014
January 2019

Nevada:

FERC:
  
 
  
 
  
 

Northern and Southern

Paiute
  
General rate case
  
April 2012
May 2019
  
April 2013

FERC:

Paiute

General rate caseFebruary 2014February 2015
Pending

While

* Southwest is subjectplans to regulatory rules and oversight with regard to rates and operating requirements under its various state tariffs (and federal tariff,file a new rate case in the case of Paiute Pipeline), it is also subject to regulation with regard to the safety and integrity of its pipeline systems. The Department of Transportation (“DOT”) administers pipeline regulations through the Office of Pipeline Safety, within the Pipeline and Hazardous Materials Safety Administration (“PHMSA”). In recent years, various pieces of legislation have been passed in the areas of distribution pipeline integrity, control room management, and pipeline safety. The Pipeline Inspection, Protection, Enforcement, and Safety (“PIPES”) Act of 2006 mandated, among other things, a graduated implementation program for control room management, a requirement to install excess flow valves on single-family residential customer locations, and a Distribution Integrity Management Program (“DIMP”), which was required to be in place by August 2011, and includes evaluation and mitigation of risks, as well as certain reporting requirements. Additionally, Congress passed the Pipeline Safety, Regulatory Certainty, and Job Creation Act of 2011 (“the Bill”), effective January 2012, which increased/strengthened previously existing safety requirements, including damage prevention programs, penalty provisions, and requirements related to automatic and remote-controlledshut-off valves, public awareness programs, incident notification, and maximum allowable operating pressure for certain facilities. The Bill required the DOT to conduct further study of existing programs and future requirements; these studies are nearing their completion and proposed regulation changes are anticipated in some form in 2017/2018. The PHMSA is in the process of proposing a series of significant rulemakings that are expected to further transform the regulatory requirements for pipelines. In October 2016, PHMSA issued a final rule regarding expanding the use of excess flow valves in natural gas distribution systems. The new rule has an effective date of April 2017. Southwest continues to evaluate potential impacts of this regulation on its operations and customers. Southwest continues to monitor changing pipeline safety legislation and participates to the extent possible in developing associated mandates and reporting requirements. Additionally, it works with its state and federal commissions, where possible, to develop customer rates that are responsive to incremental costs of compliance. However, due to the timing of when rates are implemented in response to new requirements, and as additional rules are developed, compliance requirements could impact expenses and the timing and amount of capital expenditures.

late February 2020.

Demand for Natural Gas

Deliveries of natural gas by Southwest are made under a priority system established by state regulatory commissions. The priority system is intended to ensure that the gas requirements of higher-priority customers, primarily residential customers and other customers who use 500 therms or less of gas per day, are fully satisfied on a daily basis before lower-priority customers, primarily electric utility and large industrial customers able to use alternative fuels, are provided any quantity of gas or capacity.

Demand for natural gas is greatly affected by temperature. On cold days, use of gas by residential and commercial customers can be as much as seven times greater than on warm days because of increased use of gas for space heating. To fully satisfy this increased high-priority demand, gas is withdrawn from storage in certain service areas, or peaking supplies are purchased from suppliers. If necessary, service to interruptible lower-priority customers may be curtailed to provide the needed delivery system capacity. Southwest maintains no significant backlog on its orders for gas service.

Natural Gas Supply

Southwest is responsible for acquiring and arranging delivery of natural gas to its system in sufficient quantities to meet its sales customers’customers’ needs. Southwest’sSouthwest’s primary natural gas procurement objective is to ensure that adequate supplies of natural gas are available at a reasonable cost. Southwest acquires natural gas from a wide variety of sources andwith a mix of purchase provisions, which includes spot market and firm supplies. The purchases may have terms from one day to several years and utilize both fixed and indexed pricing. During 2016,2019, Southwest acquired natural gas from 4036 suppliers. Southwest regularly monitors the number of suppliers, their performance, and their relative contribution to the overall customer supply portfolio. New suppliers are contracted when possible, and solicitations for supplies are extended to the largest practicable list of suppliers, taking into account each supplier’ssupplier’s creditworthiness. Competitive pricing, flexibility in meeting Southwest’sSouthwest’s requirements, and demonstrated reliability of service are instrumental to any one supplier’ssupplier’s inclusion in Southwest’sSouthwest’s portfolio. The goal of this practice is to mitigate the risk of nonperformance by any one supplier and ensure competitive prices in the portfolio.

Balancing reliability with supply cost results in a continually changing mix of purchase provisions within the supply portfolios. To address the unique requirements of its various market areas, Southwest assembles and administers a separate natural gas supply portfolio for each of its jurisdictional areas. Southwest facilitates most natural gas purchases through competitive bid processes.

To mitigate customer exposure to short-term market price volatility, during 2019 Southwest seekssought to fix the price on a portion (up to 25% in the Arizona and California jurisdictions) of its forecasted annual normal-weather volume requirement, primarily using firm, fixed-price purchasing arrangements that are secured periodically throughout the year. Southwest’sSouthwest’s price volatility mitigation program includes the use of financial derivatives, in the form offixed-for-floating-index-price swaps combined with indexed-price physical purchases, to secure a portion of the fixed-price portfolio for the Arizona rate jurisdiction. The combination of fixed-price contracts and financial derivatives is designed to increase flexibility for Southwest and increase supplier diversification. The cost of such financial derivatives combined with the associated indexed-price physical purchases is recovered from customers through the PGA mechanism.

In late 2013, the utilization offixed-for-floating-index-price swaps and For periods beyond October 2020, Southwest does not plan to make any fixed-price purchases pursuant to the Volatility Mitigation Program (“VMP”) was suspended for the Nevada territories served by Southwest. Management evaluates, on a quarterly basis, the suspension of Nevada VMP purchases in light of prevailing market fundamentals and regulatory conditions. Any future decision concerning Nevada VMP purchases will be documented and retained to facilitate regulatory review in accordance with a previous regulatory stipulation. Southwest schedules quarterly meetings with the PUCN Staff and the Bureau of Consumer Protection to discuss market fundamentals, along with any decision by management concerning VMPterm or swap purchases for the Arizona jurisdiction, however, will continue to make fixed-price purchases for the California jurisdiction. Southwest does not currently enter into swaps or fixed-price purchases for its Nevada service territories.

For the 2016/20172019/2020 heating season, fixed-price physical commodity purchases ranged from approximately $2.65$1.15 to approximately $4.15$2.85 per dekatherm. Southwest makesnon-fixed-price natural gas purchases, not covered by fixed-price contracts, under variable-price contracts with firm quantities or on the spot market. Prices for these contracts are determined at the beginning of each month to reflect that month’s

 
3
 



month’s publishedfirst-of-month index price or based on a published daily price index. These monthly or daily index prices are not published or known until the purchase period begins.

The baseload firm natural gas supply arrangements are structured such that Southwest must nominate a stated volume of natural gas is required to be nominated by Southwest and delivered by the supplier.supplier must confirm that nomination. Contracts provide for fixed or market-based penalties to be paid by thenon-performing party.

Storage availability canmay influence the average annual price of natural gas, as storage allowsmay allow a company to purchase natural gas quantities during theoff-peak season and store it for use in high demand periods when prices may be greater or supplies/capacity tighter. Dependent upon the rate jurisdiction, Southwest has some access to storage services, but overall there are a small quantity of storage services available for Southwest’s use. For available storage services, Southwest purchases natural gas for injection during the off-peak period for use in the high demand months; however, since there is a small quantity of storage services available, storage has a limited impact on Southwest’s annual average price of natural gas. Additionally, Southwest utilizes most available storage services for operational purposes to meet customer demand and not for economic purposes. This also limits the influence the available storage services have on Southwest’s average annual price of natural gas.
Southwest currently has no storage service availability in its southern Nevada rate jurisdiction. LimitedSouthwest has limited storage service availability exists infor the southern and northern California, northern Nevada, and the Arizona rate jurisdiction.

jurisdictions. The following summarizes Southwest’s access to storage services for those rate jurisdictions.

Southwest has a contract with Southern California Gas Company that is intended for deliveryuse only within Southwest’sSouthwest’s southern California rate jurisdiction. In addition,
Southwest contracts withfor storage services from Paiute for its’s above-ground LNG facility allow forfacility. This storage service provides peaking capability only infor the northern Nevada and northern California. For all storage options, Southwest purchases natural gas for injection during theoff-peak period for use in the high demand months, but these supplies have a limited impact on the overall price.

California rate jurisdictions.

Southwest also has interruptible storage contracts with Northwest Pipeline Corporation (“NWPL”(“NWPL”) for the northern Nevada and northern California rate jurisdictions. NWPL has the discretion to limit Southwest’sSouthwest’s ability to inject or withdraw

from this interruptible storage, which consequently limits Southwest’sSouthwest’s use of this interruptible storage capacity. As such, this storage provides limited operational flexibility to adjust daily flowing supplies to meet demand, and has limited impact ondemand.

For the overall price of natural gas supplies.

Southwest also has an agreement for its Arizona rate jurisdiction, Southwest previously contracted with Enstor Grama Ridge Storage and Transportation, LLC (“Enstor”(“Enstor”) which providesprovided for a maximum inventory quantity of 600,000 dekatherms of natural gas underground storagestorage. This contract terminated in New Mexico that is deliverable on the El Paso system. Southwest previously received approval to construct, operate and maintainMarch 2019. Beginning in December 2019, a 233,000 dekatherm above-ground LNG facility in southern Arizona.Arizona was placed into service. This facility is intended to enhance service reliability and flexibility in natural gas deliveries in the southern Arizona area by providing a local storage option that is operated by Southwest and connected directly to its distribution system. The site for the facility was purchased in October 2015. Southwest solicited requests for proposals for the engineering, procurement and construction (“EPC”) phase of the project, and in October 2016 made a filing with the ACC to modify the previously issued Order to update thepre-approved costs to reflect anot-to-exceed amount of $80 million, which is intended to update thepre-approval to reflect the current pricing information made available through the recently completed EPC phase. The filing was approved by the ACC in December 2016. Through December 2016, Southwest has incurred approximately $4.1 million in capital expenditures toward the project (including land acquisition costs). Southwest included a proposal for the ratemaking treatment of facility costs as part of its current Arizona rate case filing. A settlement (contingent on ACC approval) in the general rate case was reached between several parties at a December 2016 settlement meeting and a formal draft settlement was filed with the ACC in January 2017. The draft settlement included an agreement to defer the revenue requirement associated with all costs incurred before December 31, 2020 for recovery in Southwest’s next general rate case proceeding and extended the authorization to defer costs through the same date. Any gas costs incurred that are not related to the initial construction and placement of the facility are to be recovered through the PGA mechanism. Construction is expected to be completed by the end of 2019.

Natural gas supplies for Southwest’sSouthwest’s southern system (Arizona, southern Nevada, and southern California properties) are primarily obtained from producing regions in Colorado and New Mexico (San Juan basin), Texas (Permian basin), and Rocky Mountain areas. For its northern system (northern Nevada and northern California properties), Southwest primarily obtains natural gas from Rocky Mountain producing areas and from Canada.

The landscape for national natural gas supply is continuously changing. Advanced drilling techniques continue to provide access to abundant and sustainable natural gas supplies. The natural gas market has responded to the abundant supply of natural gas with reductions to both price volatility and the total price of the commodity. Forecasts show that an ample and diverse natural gas supply is available to Southwest’sSouthwest’s customers at a highly competitive price when compared with competing forms of energy.

Southwest arranges for transportation of natural gas to its Arizona, Nevada, and California service territories through the pipeline systems of El Paso Natural Gas Company (“(“El Paso”Paso”), Kern River Gas Transmission Company (“(“Kern River”River”), Transwestern Pipeline Company (“Transwestern”(“Transwestern”), NWPL, Tuscarora Gas Pipeline Company (“Tuscarora”(“Tuscarora”), Southern California Gas Company, Paiute, and Paiute.Ruby Pipeline LLC (“Ruby”), costs for which are recovered from Southwest’s customers through the PGA mechanism. Southwest regularly monitors short- and long-term supply and pipeline capacity availability to ensure the reliability of service to its customers. Southwest currently receives firm transportation service, both on a short- and long-term basis, for all of its service territories on the pipeline systems noted above. Southwest also contracts for firm natural gas supplies that are delivered to Southwest’sSouthwest’s city gates to supplement its firm capacity on the interstate pipelines and to meet projectedpeak-day demands. Southwest could also utilize its interruptible contracts on the interstate pipelines for the transportation of additional natural gas supplies.

Southwest believes that the current levels of contracted firm interstate capacity and delivered purchases are sufficient to serve each of its service territories’territories’ forecastedpeak-day requirements. As the need arises to acquire additional capacity on one of the interstate pipeline transmission systems and to secure additional supply, primarily due to customer growth, Southwest will continue to consider available options to obtain that capacity either(either through the use of firm contracts with a pipeline company or by purchasing capacity on the open market, or throughmarket), and will also consider options for the purchase of additional firm delivered natural gas supplies.


 
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Competition

Electric utilities are the principal competitors of Southwest for the residential and small commercial markets throughout its service areas. Competition for space heating, general household, and small commercial energy needs generally occurs at the initial installation phase when the customer/builder typically makes the decision as to which type of equipment to install and operate. The customer will generally continue to use the chosen energy source for the life of the equipment. Southwest interfaces directly with the various home builders and commercial property developers in its service territories to ensure that natural gas appliances are considered in new developments and commercial centers. As a result of its efforts,

Southwest has continued to experience growth in the new construction market among residential and small commercial customer classes.

Unlike residential and small commercial customers, certain

Certain large commercial, industrial, and electric generation customers have the capability to switch to alternative energy sources. To date, Southwest has been successful in retaining most of these customers by setting rates (subject to conditions of the respective state tariffs) at levels competitive with commercially available alternative energy sources such as electricity and fuel oils, and coal.oils. However, high natural gas prices canor policies surrounding electrification could impact Southwest’sSouthwest’s ability to retain some of these customers. Alternative energy has gained momentum in governmental policy overall in recent years. Southwest has taken steps to align with these efforts by supporting energy efficiency in our jurisdictions, being part of greenhouse gas protocols and initiatives in California, and creating new biogas and renewable natural gas (“RNG”) tariff schedules in Arizona, California, and Nevada. While certain forms of renewable energy initiatives compete with natural gas, the abundance and low cost of natural gas provide competitive advantages across our portfolio of customers. Overall, management does not anticipate any material adverse impact on operating margin from fuel switching by these large customers.

or alternative energy initiatives over the near term.

Southwest competes with interstate transmission pipeline companies, such as El Paso, Kern River, Transwestern, Tuscarora, and Tuscarora,Ruby to provide service to certain largeend-users.End-use end-users. End-use customers located in proximity to these interstate pipelines pose a potential bypass threat. Southwest attempts to closely monitormonitors each customer situation and provideprovides competitive service in order to retain the customer. Southwest has remained competitive through the use of negotiated transportation contract rates (subject to conditions of the respective state tariffs), special long-term contracts with electric generation and cogeneration customers, and other tariff programs. These competitive response initiatives have mitigated the loss of operating margin earned from large customers.

Environmental Matters

Federal, state, and local laws and regulations governing the discharge of materials into the environment have a direct impact upon Southwest. Environmental efforts, with respect to matters such as storm water management, emissions of air pollutants, hazardous material management, protection of endangered species and archeologicalarchaeological resources, directly impact the complexity and time required to obtain pipelinerights-of-way and construction permits. There have also been a number of federal and state legislative and regulatory initiatives proposed in recent years in an attempt to control or limit the effects of global warming and overall climate change, including greenhouse gas emissions (“GHGs”), such as carbon dioxide. The adoption of this type of legislation by Congress or similar legislation by state governments mandating a substantial reduction in GHGs, or decarbonization generally, in the future could have significant impacts on the energy industry. Such new legislation or regulations could result in increased compliance costs or additional operating restrictions on our business, affect the demand for natural gas, or impact the prices we charge our customers. At this time, we cannot predict the potential impact of such laws or regulations, if adopted, on our future business, financial condition, or results. However, increased environmental legislation and regulation can also be beneficial to the natural gas industry. Natural gas is one of the most environmentally-friendly fossil fuels currently available and its use can help energy users to comply with stricter environmental air quality standards.

While transportation is typically cited as the leading source of carbon dioxide emissions in the United States, Southwest continues to work with policy makers, and regulators to provide customers with clean, efficient, affordable natural gas service and to support and adopt renewables initiatives and expanded use of compressed natural gas. In recent years, regulatory activity in both Arizona and Nevada has led to provisions allowing the development and potential investment in RNG projects, adding to the existing dairy biomethane pilot provisions in California. In addition, proposals have been made in all jurisdictions to allow the purchase of RNG as part of Southwest’s gas supply portfolio.

The United States Environmental Protection Agency (“EPA”(the “EPA”) and the State of California Environmental Protection Agency (“(the “Cal/EPA”EPA”) have issued regulations that require the reporting of greenhouse gas emissions (“GHG”)GHGs from large sources and suppliers in order to facilitate the development of policies and programs to reduce GHGs. Southwest reports required information to the EPA and Cal/EPA under respective rules including the volumes of natural gas that it receives for distribution to LDC customers, and the GHG emissions that result from the operation of its LDC pipelines. While some aspects of the mandatory reporting rules do not apply to Southwest, other required information is being reported to the Department of Energy, the Department of Transportation, or is available in existing databases. Management also monitors the development of climate legislation (including the State of California Global Warming Solutions Act), which could result in additional requirements or have financial implications.

California Assembly Bill Number 32legislation and the regulations promulgated by the California Air Resources Board (“CARB”(the “CARB”), require Southwest as a covered entity, to comply with all of the requirements associated with the California GHG Emissions Reporting Program and the California Cap and Trade Program. The objectiveProgram, objectives of these programs iswhich endeavor to reduce California statewide GHG emissionsGHGs to 1990 levels by the end of 2020. Southwest must report annual GHG emissions by April of each year and third-party verification of those reported amounts is required by September ofGHGs each year. Starting in 2015, theThe CARB annually allocates to Southwest a certain number of allowances based on Southwest’s

 
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Southwest’s reported 2011 GHG emissions. Southwest received its allocation for 2016 in the third quarter of 2015 and, for 2017, in the third quarter of 2016.GHGs. Of those allocated allowances, Southwest must consign a certain percentage to the CARB for auction. Southwest can use any allocated allowances that remain after consignment, along with allowances it can purchase through CARB auctions or reserve sales, or through over the counter (“OTC”(“OTC”) purchases with other market participants, to meet its compliance obligations. In addition to allowances, Southwest can satisfy a portion of its
There were two three-year compliance obligation through the purchase of offsets,periods established; one which are credits available in the OTC market from industries that generate reductions in greenhouse gas emissions.

There are two triennial compliance periods; one endingended in 2017 and the other, ending in 2020. To meet itsSouthwest successfully met the first three-year compliance obligations, during each triennial compliance period, Southwest must surrender a combination of allowances and offsets equal to 30% of its annual reported GHG emissions for the prior yearobligation by November 1 of each year (2016 through 2020). Also by November 1 of the year following each of the triennial compliance periods (2018 and 2021), Southwest must surrendersurrendering a sufficient number of allowances and offsetsprior to meet the amount of GHG emissions reported during that triennial compliance period, less the amount previously surrendered.

November 1, 2018. The CPUC has issued a decision that provides for the regulatory treatment of the program costs and therecosts. The decision also implemented the California Climate Credit in October 2018, representing a return of auction proceeds, which will be updated annually each April. There is no expected impact on earnings.

Employees

At December 31, 2016,2019, Southwest had 2,2472,295 regular full-time equivalent employees. Southwest believes it has a good relationship with its employees and that compensation, benefits, and working conditions afforded its employees are comparable to those generally found in the utility industry. No employees are represented by a union.

CONSTRUCTION
UTILITY INFRASTRUCTURE SERVICES

Centuri is a comprehensive constructionutility infrastructure services enterprise dedicated to meeting the growing demandsdelivering a diverse array of solutions to North American utilities, energyAmerica’s gas and industrial markets.electric providers. Centuri derives revenue from installation, replacement, repair, and maintenance of energy distribution systems, and developing industrial construction solutions primarily for energy services utilities. Centuri contracts primarily with LDCs to install, repair, and maintain energy distribution systems from the town border station to theend-user.solutions. The primary focus of Centuri operations is replacement of natural gas distribution pipe and electric servicehook-up replacements lines as well as line installations for new business development. Constructioninfrastructure installations. Utility infrastructure services work varies from relatively small projects to the pipinginstallation of infrastructure for entire communities. Constructionresidential communities or business parks. Utility infrastructure services activity is seasonal in most of Centuri’s operating areas. Peak construction periods are the summer and fall months in colder climate areas, such as the North East, Midwest,northeastern and midwestern U.S. and Canada. In the warmer climate areas, such as the southwestern United States, constructionand southeastern U.S., utility infrastructure services activity continues year round.

During the past fewrecent years, severalvarious factors have resulted in an increase in large multi-year distribution pipeutility system replacement projects.programs. The U.S. Department of Transportation’s Transportation’s Pipeline and Hazardous Materials Safety Administration (“PHMSA”) instituted Distribution Integrity Management Programs (“DIMP”) effective February 2010 which required operators of gas distribution pipelines to develop and implement integrity management programs to enhance safety by identifying and reducing pipeline integrity risks. Also contributing to the increase in replacement projects were bonus depreciation tax deduction incentives. The Protecting Americans from Tax HikesU.S. Energy Policy Act of 2015 extended 50% bonus depreciation tax deduction incentives through 20172005 established mandatory electric grid reliability standards and at lesser rates through 2019. Finally, funding for customers’ planned replacement projects improved dueincentivized investments in transmission and distribution systems. FERC Order No. 1000, issued in July 2011, established transmission planning requirements to greater access to credit markets.

In connectionencourage development of electric transmission infrastructure projects.

Centuri’s contract terms with the increased construction activity, several large multi-year distribution pipe replacement projects were awarded to Centuri. Centuri was selected as the sole contractor on certain of these projects, or one of several contractors to work on others. Centuri continues to bid on pipe replacement projects throughout the United States and Canada and has made structural and transitional changes to match the increased size and complexity of the business. The amount of work completed by Centuri on these multi-year contracts will vary from year to year.

Centuri’s business activities are often concentrated in utility service territories where existing energy lines are scheduled for replacement. An LDC will typically contract with Centuri to provide pipe replacement services and new line installations. Contract termscustomers generally specify unit-price, fixed-price, or fixed-pricetime and materials arrangements. Unit-price contracts establish prices for all of the various services to be performed during the contract period. These contracts often have annual pricing reviews. During 2016,2019, approximately 86%79% of revenue was earned under unit-price contracts. Backlog represents the dollar amount of revenue Centuri expects to recognize in the future from contracts awarded and in progress as of the end of the reporting period. Reported backlog differs from the concept of remaining performance obligations as defined by accounting principles generally accepted in the U.S. (“U.S. GAAP”) and is not a measure of contract profitability. As of December 31, 2016, a2019, backlog of approximately $88$122.8 million existed with respect to outstanding fixed-priced construction contracts.

Materials used by Centuri in its constructionutility infrastructure service activities are typically specified, purchased, and supplied by Centuri’sCenturi’s customers. Construction contractsContracts with customers also contain provisions which make customers generally liable for remediating environmental hazards encountered during the construction process. Such hazards might include digging in an area that was contaminated prior to construction, finding endangered animals, digging in historically significant sites, etc. Otherwise, Centuri’sCenturi’s operations have limited environmental impact (dust control, normal waste disposal, handling harmful materials, etc.).

Competition within the industry has traditionally been limited to several regional and numerous local competitors in what has been a largely fragmented industry. Some national competitors also exist within the industry. Centuri currently operates in 20 major markets within54 primary locations across 40 states and provinces in the United StatesU.S. and also within the Canadian provinces of British Columbia and Ontario. Its customers are primarily the principal LDCs in those markets.Canada. During 2015,2019, Centuri served over 100 customers, with Southwest accounting for approximately 9% of total revenues.revenue. Additionally, two customers combined accounted for approximately 24%19% of total revenue, while fourthree other customers individually accounted for 5% or more of total revenue.

Employment

Employee headcount fluctuates between seasonal construction periods, which are normally heaviest in the summer and fall months. At December 31, 2016,2019, Centuri had 4,0306,649 regular full-time equivalent employees. Employment peaked in September 20162019 when there were 5,9387,687 employees. Most employees are represented by unions and are covered by collective bargaining agreements, which is typical of the utility constructioninfrastructure services industry.

Centuri’s operations are conducted from 24 field locations throughout the United States and 12 field locations within Canada, with corporate headquarters located in Phoenix, Arizona. Buildings and equipment storage yards are normally leased from third parties. The lease terms are typically five years or less.

Centuri is not directly affected by regulations promulgated by the ACC, PUCN, CPUC, or FERC. Centuri is an unregulated subsidiary of the Company. However, because Centuri performs work for Southwest, its associated construction costs are subject indirectly to “prudency reviews” just as

 
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“prudency reviews” like any other capital work that is performed by third parties or directly by Southwest. However, such “prudency reviews”reviews would not bring Centuri under the regulatory jurisdiction of any of the commissions noted above.

Centuri has a 65% interest in IntelliChoice Energy, LLC (“ICE”) and consolidates ICE as a majority owned subsidiary. ICE was established in 2009 and markets natural gas engine-driven heating, ventilating, and air conditioning (“HVAC”) technology and products. To date, ICE has not been a significant component of Centuri operating results.

Centuri, through its subsidiaries, holds a 50% interest in W.S. Nicholls Western Construction LTD. (“Western”Ltd. (“Western”), a Canadian constructioninfrastructure services company that is a variable interest entity that specializes in construction of underground aviation fueling systems and storage tanks. TheWestern is a variable interest entity of which the Company is not the primary beneficiary of Western;beneficiary; therefore, Western is not consolidated with Centuri and is accounted for under the equity method of accounting. Furthermore, Centuri, through its subsidiaries, also has a 25% interest inCCI-TBN Toronto, Inc., and a 50% interest in Matheson-Nicholls Joint Venture, subject to equity method accounting as well. To date, neither Western,CCI-TBN Toronto, Inc., nor Matheson-Nicholls Joint Venture have has not been a significant component of Centuri’sCenturi’s financial results.

 

Item 1A.

RISK FACTORS

Described below (and inItem 7A. Quantitative and Qualitative Disclosures about Market Riskof this report) are risk factors that we have identified that may have a negative impact on our future financial performance or affect whether we achieve the goals or expectations expressed or implied in any forward-looking statements contained herein. Because Southwest Gas Holdings, Inc. was formed as the successor issuer (to Southwest Gas Corporation) of public equity securities subsequent to December 31, 2016, and because these discussions relate to ongoing risks and future impacts, unless indicated otherwise, referencesReferences below to “we,” “us,”“we,” “us,” and “our”“our” should be read to refer to Southwest Gas Holdings, Inc. and its subsidiaries, including Southwest Gas Corporation.

Corporation and Centuri Group, Inc.

As a holding company, Southwest Gas Holdings, Inc. depends on operating subsidiaries to meet financial obligations.

Southwest Gas Holdings, Inc. has no significant assets other than the stock of operating subsidiaries and is not expected to have significant operations on its own. Southwest Gas Holdings’Holdings’ ability to pay dividends to shareholdersstockholders is dependent on the ability of its subsidiaries to generate sufficient net income and cash flows to service debt and pay upstream dividends. Because of the relative size of subsidiary operations, and their relative impacts to net income and cash flows, substantial dependency on the utility operations of Southwest Gas Corporation and the infrastructure services of Centuri Group, Inc. exists. The ability of Southwest Holdings’Gas Holdings’ subsidiaries to pay upstream dividends and make other distributions would be subject to relevant debt covenant restrictions of subsidiaries and applicable state lawlaw.
Risk Factors that Apply to Southwest Gas Holdings, Inc., Natural Gas Operations, and Utility Infrastructure Services
A cybersecurity incident has the potential to disrupt normal business operations, expose sensitive information, and/or lead to physical damages, and may result in legal claims or damage to our reputation.
As both a utility provider and related infrastructure services provider, maintaining business operations is critical for our customers, business partners, suppliers, and our employees. A disruption in service could adversely impact our reputation, ability to provide services for our customers, as well as impact the media used to communicate and exchange information both internally and externally.
We process and store sensitive information, including personal identifiable information (“PII”), intellectual property, and business proprietary information as part of normal business operations. A cybersecurity breach of this information could expose us to monetary and other damages from customers, suppliers, business partners, government agencies, and others. The federal and state legislative and regulatory restrictions.

environment surrounding PII, information security, and data privacy is evolving and is likely to become increasingly demanding. For example, California recently enacted the California Consumer Privacy Act, which became effective on January 1, 2020 and requires covered businesses to, among other things, provide disclosures to California consumers regarding the collection, use, and disclosure of such consumers’ PII and afford such consumers new rights, including the right to opt out of certain sales of PII. Additional states are also considering new laws and regulations that further protect the confidentiality, privacy, and security of personal information. Should the Company experience a breach and/or become subject to additional regulation, it could face substantial compliance costs, reputational damage, and uncertain litigation risks.

Physical damage due to a cybersecurity incident or acts of cyber terrorism could impact utility and related services provided to customers and could lead to material liabilities. The Company has taken the initiative in fortifying the core infrastructure that supports the provision of utility and related services. While these measures provide layers of defense to mitigate these risks, there can be no assurance that the measures will be effective against any particular cyber attack. Even though we have insurance coverage in place for cyber-related risks, if such an attack or act of terrorism were to occur, our operations and financial results could be adversely affected to the extent not fully covered by such insurance coverage.
We may pursue acquisitions and other strategic transactions, the success of which may impact our results of operations, cash flows and financial condition.
The integration of acquisitions requires significant time and resources. Investment of resources would be required to support any acquisition, which could result in significant ongoing operating expenses and may divert resources and management attention from other areas of our business. If we fail to successfully integrate companies we acquire, we may not realize the benefits expected from the transaction and goodwill recorded as a result of the acquisition could be impaired. We assess existing goodwill for impairment annually or more frequently if events or circumstances occur that would more likely than not reduce the fair value of an operating segment below its carrying value. We also assess long-lived assets, including intangible assets associated with

 
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acquisitions, for impairment whenever events or circumstances indicate that an asset’s carrying amount may not be recoverable. To the extent the value of goodwill or long-lived assets becomes impaired, the impairment charges could have a material impact on our results of operations.
Liability exposure associated with litigation could have a material adverse effect on our business and results of operations
Southwest Gas Holdings, Inc., and its subsidiaries, are occasionally named as a party in lawsuits, claims, and other legal and administrative proceedings arising in the ordinary course of business, including actions related to personal injury, workers’ compensation, employment-related claims, contracts, property damage, and other ancillary matters. Although we believe that adequate insurance coverage is maintained to protect against risk exposure, it is difficult to predict with absolute certainty the costs associated with litigation, indemnity obligations, or other claims asserted in any given year. Moreover, it is possible that not all liabilities and costs experienced will be covered by third-party insurance. As a consequence, liability exposure could materially and adversely affect our business and results of operations to the extent they are not fully covered by such insurance coverage.
The nature of our operations presents inherent risks of loss that could adversely affect our results of operations.
Our natural gas operations are subject to inherent hazards and risks such as gas leaks, fires, natural disasters, catastrophic accidents, explosions, pipeline ruptures, and other hazards and risks that may cause unforeseen interruptions, personal injury, or property damage. Our utility infrastructure services operations are reliant on skilled personnel who are trained and qualified to install utility infrastructure under established safety protocols and operator qualification programs, and in conformance with mandated engineering design specifications. Lapses in judgment or failure to follow protocol could lead to warranty and indemnification liabilities or catastrophic accidents, causing property damage or personal injury. Additionally, our facilities, machinery, and equipment, including our pipelines, are subject to third-party damage from construction activities, vandalism, or acts of terrorism. Such incidents could result in severe business disruptions, significant decreases in revenues, and/or significant additional costs to us. Any such incident could have an adverse effect on our financial condition, earnings, and cash flows. In addition, any of these or similar events could result in legal claims against us, cause environmental pollution, personal injury or death claims, damage to our properties or the properties of others, or loss of revenue by us or others.
We maintain liability insurance for some, but not all, risks associated with the operation of our natural gas pipelines and facilities, and the utility infrastructure services we provide. In connection with these liability insurance policies, we are responsible for an initial deductible or self-insured retention amount per incident, after which the insurance carriers would be responsible for amounts up to the policy limits. Liability insurance policies at Southwest require us to be responsible for the first $1 million (self-insured retention) of each incident plus the first $4 million in total claims above our self-insured retention in the policy year; while Centuri’s self-insured retention amount is $400,000 per occurrence. We cannot predict the likelihood that any future event will occur which will result in a claim exceeding these amounts; however, a large claim for which we were deemed liable would reduce our earnings up to and including these self-insurance maximums.
Failure to attract and retain an appropriately qualified employee workforce could adversely affect operations.
Our ability to implement our business strategy and serve our customers is dependent upon our continuing ability to attract and retain talented professionals and a technically skilled workforce, and being able to transfer the knowledge and expertise of our workforce to new employees as our aging employees retire. Failure to attract, hire, and adequately train replacement employees, including the transfer of significant internal historical knowledge and expertise to the new employees, or the future availability and cost of contract labor could adversely affect our ability to manage and operate our business.
Our operating results may be adversely impacted by an economic downturn.
If an economic slowdown occurs, our financial condition, results of operations, and cash flows could be adversely affected. Fluctuations and uncertainties in the economy make it challenging for us to accurately forecast and plan future business activities and to identify risks that may affect our business, financial condition, and operating results. We cannot predict the timing, strength, or duration of any future economic slowdown. If the economy or the markets in which we operate decline from present levels, it may have an adverse effect on our business, financial condition, and results of operations.
Risk Factors that Apply to Southwest Gas Holdings, Inc. and Natural Gas Operations
Governmental policies and regulatory actions can reduce our earnings.

earnings or cash flows.

Regulatory commissions set our utility customer rates and determine what we can charge for our rate-regulated services. Our ability to obtain timely future rate increases depends on regulatory discretion. Governmental policies and regulatory actions, including those of the ACC, CPUC, FERC, and PUCN relating to allowed rates of return, rate structure, purchased gas and investment recovery, operation and construction of facilities, present or prospective wholesale and retail competition including electrification or decarbonization policies or proposed policies by governmental entities or other parties, changes in tax laws and policies (including regulatory recovery or refunds thereof), and changes in and compliance with environmental and safety laws, such asincluding state or federal EPA or PHMSA regulations, and regulations placed on us or our customers regarding the Pipeline Safety, Regulatory Certainty, and Job Creation Act of 2011 and policies, canproduct we deliver in meeting customer energy needs could reduce our earnings. Risks and uncertainties relating to delays in obtaining, or

 
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failure to obtain, regulatory approvals, conditions imposed in regulatory approvals, and determinations in regulatory investigations can also impact financial performance. In particular, theThe timing and amount of rate relief can materially impact results of operations.

We The timing and amount associated with the recovery of regulatory assets and associated with the return of regulatory liabilities can materially impact cash flows.

In general, we are unable to predict what types of conditions might be imposed on Southwest or what types of determinations might be made in pending or future regulatory proceedings or investigations. We nevertheless believe that it is not uncommon for conditions to be imposed in regulatory proceedings, for Southwest to agree to conditions as part of a settlement of a regulatory proceeding, or for determinations to be made in regulatory investigations that reduce our earnings and liquidity. For example, we may request recovery of a particular operating expense in a general rate case filing that a regulator disallows, negatively impacting our earnings if the expense continues to be incurred. Southwest records regulatory assets in its consolidated financial statements to reflect the ratemaking and regulatory decision-making authority of the regulators, as allowed by generally accepted accounting principles.U.S. GAAP. The creation of a regulatory asset allows for the deferral of costs which, absent a mechanism to recover such costs from customers in rates approved by regulators, would be charged to expense in the consolidated income statement in the period incurred. If there was a change in regulatory positions surrounding the collection of these deferred costs, there could be a material impact on financial position, results of operations, and cash flows.

We may be subject to disallowances, penalties or finesincreased costs related to the operation of natural gas pipelines under recent regulations concerning natural gas pipeline safety, which could have an adverse effect on our results of operations, financial condition, and/or cash flows.

We are committed to consistently monitoring and maintaining our distribution system and above-ground LNG storage operations to ensure that natural gas is acquired, stored and delivered safely, reliably, and efficiently. Due to the combustible nature of our product, we anticipate that the natural gas industry could be the subject of increased federal, state, and local regulatory oversight over time. We continue to work diligently with industry associations and federal, state, and local regulators to ensure compliance with any new laws, such as the Pipeline Safety, Regulatory Certainty, and Job Creation Act of 2011 and the series of significant rulemakings to be proposed by the Pipeline and Hazardous Materials Safety Administration.applicable laws. We expect there to be increased costs associated with compliance (and potential penalties for anynon-compliance) with these and similarapplicable laws. If these costs are not recoverable in our customer rates, or if there are delays in recoverability due to regulatory lag, they could have a negative impact on our operating costs and financial results.

Our operating results may be adversely impacted by another economic downturn.

The 2007/2008 economic slowdown in the United States, and particularly in our service areas, resulted in a marked decline in the new housing market and an increase in the inventory of idle/vacant homes. Commercial entities (including restaurants and other service establishments) were also impacted, resulting in reductions in operations or closures. The impacts of that slowdown have eased in our service territories and most of the idle/vacant homes have returned to service. If another economic slowdown occurs, our financial condition, results of operations, and cash flows could be adversely affected. Fluctuations and uncertainties in the economy make it challenging for us to accurately forecast and plan future business activities and to identify risks that may affect our business, financial condition, and operating results. We cannot predict the timing, strength, or duration of any future economic slowdowns. If the economy or the markets in which we operate decline from present levels, it may have an adverse effect on our business, financial condition, and results of operations.

We rely on having access to interstate pipelines’pipelines’ transportation capacity. If these pipelines and related transportation capacity were not available, it could impact our ability to meet our customers’customers’ full requirements.

We must acquire both sufficient natural gas supplies and interstate pipeline capacity to meet customer requirements. We must contract for reliable and adequate delivery capacity for our distribution system, while considering the dynamics of the interstate pipeline capacity market, our ownin-system resources, as well as the characteristics of our customer base. Interruptions to or reductions of interstate pipeline service caused by physical constraints, excessive customer usage, or other force majeure could reduce our normal supply of gas. Restrictions placed on pipelines or the extractive and mid-stream industries could disrupt our business and reduce cash flows and earnings. A prolonged interruption or reduction of interstate pipeline service or availability of natural gas in any of our jurisdictions, particularly during the winter heating season, would reduce cash flow and earnings.

Our earnings may be materially impacted due to volatility in the cash surrender value of our company-owned life insurance policies during periods in which stock market changes are significant.

We have life insurance policies with a net death benefit value at December 31, 2016 of approximately $241 million on members of management and other key employees to indemnify ourselves against the loss of talent, expertise, and knowledge, as well as to provide indirect funding for certain nonqualified benefit plans. The net cash surrender value of these policies (which is the cash amount we would receive if we voluntarily terminated the policies) is approximately $107 million at December 31, 2016 and is included in the caption “Other property and investments” on the balance sheet. Cash surrender values are directly influenced by the investment portfolio underlying the insurance policies. This portfolio includes both

equity and fixed income (mutual fund) investments. As a result, the cash surrender value (but not the net death benefits) moves up and down consistent with the movements in the broader stock and bond markets. During 2016, the Company recognized income of $7.4 million in Other income (deductions) due to increases in the cash surrender values of its company-owned life insurance policies and net death benefits recognized compared to a loss of $500,000 due to decreases in cash surrender values during 2015. Current tax regulations provide fortax-free treatment of life insurance (death benefit) proceeds. Therefore, changes in the cash surrender value components of company-owned life insurance policies, as they progress towards the ultimate death benefits, are also recorded without tax consequences. Currently, we intend to hold the company-owned life insurance policies for their duration. Changes in the cash surrender value of company-owned life insurance policies, except as related to the purchase of additional policies, affect our earnings but not our cash flows.

The cost of providing pension and postretirement benefits is subject to changes in pension asset values, changing demographics, and actuarial assumptions which may have an adverse effect on our financial results.

We provide pension and postretirement benefits to eligible employees. Our costs of providing such benefits are subject to changes in the market value of our pension fund assets, changing demographics, life expectancies of beneficiaries, current and future legislative changes, and various actuarial calculations and assumptions. The actuarial assumptions used may differ materially from actual results due to changing market and economic conditions, withdrawal rates, interest rates, and other factors. These differences may result in a significant impact on the amount of pension expense or other postretirement benefit costs recorded in future periods. For example, lower than assumed returns on investments and/or reductions in bond yields could result in increased contributions and higher pension expense which would have a negative impact on our cash flows and reduce net income.


 
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Our liquidity, and in certain circumstances our earnings, may be reduced during periods in which natural gas prices are rising significantly or are more volatile.

Increases in the cost of natural gas may arise from a variety of factors, including weather, changes in demand, the level of production and availability of natural gas, transportation constraints, transportation capacity cost increases, federal and state energy and environmental regulation and legislation, the degree of market liquidity, natural disasters, wars and other catastrophic events, national and worldwide economic and political conditions, the price and availability of alternative fuels, and the success of our strategies in managing price risk.

Rate schedules in each of our service territories contain purchased gas adjustment clauses which permit us to file for rate adjustments to recover increases in the cost of purchased gas. Increases in the cost of purchased gas have no direct impact on our profit margins, but do affect cash flows and can therefore impact the amount of our capital resources. We have used short-term borrowings in the past to temporarily finance increases in purchased gas costs, and we expect to do so during 2017,2020, if the need again arises.

We may file requests for rate increases to cover the rise in the cost of purchased gas. Due to the nature of the regulatory process, there is a risk of disallowance of full recovery of these costs during any period in which there has been a substantialrun-up of these costs or our costs are more volatile. Any disallowance of purchased gas costs would reduce cash flowflows and earnings.

The nature of our operations presents inherent risks of loss that could adversely affect our results of operations.

Our operations are subject to inherent hazards and risks such as gas leaks, fires, natural disasters, catastrophic accidents, explosions, pipeline ruptures, and other hazards and risks that may cause unforeseen interruptions, personal injury, or property damage. Additionally, our facilities, machinery, and equipment, including our pipelines, are subject to third party damage from construction activities, vandalism, or acts of terrorism. Such incidents could result in severe business disruptions, significant decreases in revenues, and/or significant additional costs to us. Any such incident could have an adverse effect on our financial condition, earnings, and cash flows. In addition, any of these or similar events could cause environmental pollution, personal injury or death claims, damage to our properties or the properties of others, or loss of revenue by us or others.

We maintain liability insurance for some, but not all, risks associated with the operation of our natural gas pipelines and facilities. In connection with these liability insurance policies, we are responsible for an initial deductible or self-insured retention amount per incident, after which the insurance carriers would be responsible for amounts up to the policy limits. These liability insurance policies require us to be responsible for the first $1 million (self-insured retention) of each incident plus the first $4 million in total claims above our self-insured retention in the policy year. We cannot predict the likelihood

that any future event will occur which will result in a claim exceeding $1 million; however, a large claim for which we were deemed liable would reduce our earnings up to and including these self-insurance maximums.

Failure to attract and retain an appropriately qualified employee workforce could adversely affect operations.

Our ability to implement our business strategy and serve our customers is dependent upon our continuing ability to attract and retain talented professionals and a technically skilled workforce, and being able to transfer the knowledge and expertise of our workforce to new employees as our aging employees retire. Failure to hire and adequately train replacement employees, including the transfer of significant internal historical knowledge and expertise to the new employees, or the future availability and cost of contract labor could adversely affect our ability to manage and operate our business.

We may not be able to rely on rate decoupling to maintain stable financial position, results of operations, and cash flows.

Management has worked with regulatory commissions in designing rate structures that strive to provide affordable and reliable service to its customers while mitigating the volatility in prices to customers and stabilizing returns to investors. Rate structures in all service territories allow Southwest to separate or “decouple”“decouple” the recovery of operating margin from natural gas consumption, though decoupled structures vary by state. In California, authorized operating margin levels vary by month. In Nevada aand Arizona, the decoupled rate structure appliesstructures apply to most customer classes providingon the basis of margin per customer, which varies by month. Collectively, these mechanisms provide stability in annual operating margin. In Arizona, a full revenue decoupling mechanism (currently, with a winter-period monthly weather adjuster) is in place for most customer classes. Significantly warmer-than-normal weather conditions in our service territories and other factors, such as climate change and alternative energy sources, may result in decreased cash flows attributable to lower natural gas sales and delays in recovering regulatory asset balances. Furthermore, continuation of the decoupled rate designs currently in place are subject to regulatory discretion, and if unfavorably modified or discontinued could adversely impact our financial position and results of operations.

A significant reduction in our credit ratings could materially and adversely affect our business, financial condition, and results of operations.

We cannot be certain that any of our current credit ratings will remain in effect for any given period of time or that a rating will not be lowered or withdrawn entirely by a rating agency if, in its judgment, circumstances in the future so warrant. Our credit ratings are subject to change at any time in the discretion of the applicable ratings agencies. Numerous factors, including many which are not within our control, are considered by the ratings agencies in connection with assigning credit ratings.

Any future downgrade could increase our borrowing costs, which would diminish our financial results. We would likely be required to pay a higher interest rate in certain current, as well as future, financings, and our potential pool of investors and funding sources could decrease. A downgrade could require additional support in the form of letters of credit or cash or other collateral and otherwise adversely affect our business, financial condition, and results of operations.

Uncertain economic conditions may affect our ability to finance capital expenditures.

Our ability to finance capital expenditures and other matters will depend upon general economic conditions in the capital markets. Declining interest rates are generally believed to be favorable to utilities while rising interest rates are believed to be unfavorable because of the high capital costs of utilities. In addition, our authorized rate of return is based upon certain assumptions regarding interest rates. If interest rates are lower than assumed rates, our authorized rate of return in the future could be reduced. If interest rates are higher than assumed rates, it will be more difficult for us to earn our currently authorized rate of return.

Some of our debt carries a rate of interest linked to the London Interbank Offered Rate (“LIBOR”) and has a maturity date after December 31, 2021. If a change in indices, including the discontinuation of LIBOR, which is expected to occur after 2021, results in interest rate increases on our debt, debt service requirements will correspondingly increase, which could adversely affect our cash flow and operating results.
We require numerous permits and other approvals from various federal, state, and local governmental agencies, and others to operate our business;business, including for pipeline expansion or infrastructure development; any failure to obtain or maintain required permits or approvals, or other factors that could prevent or delay planned development, could negatively affect our business and results of operations.

All of our

Our existing and planned development projects require multiple permits.permits and approvals. The acquisition, ownership and operation of natural gas pipelines and storage facilities require numerous permits, rights-of-way, approvals and certificates from federal, state, and local governmental agencies.agencies or others. Various factors may prevent or delay us from completing such projects or may

 
10
 



make completion more costly, including the inability to obtain approval, public opposition to the project, regulatory opposition to one or more projects or related programs or their delayed recovery and returns thereon, inability to obtain adequate financing, competition for labor and materials, construction delays, cost overruns, and inability to negotiate acceptable agreements relating to rights-of-way, construction or other material development components. Once received, approvals may be subject to litigation, and projects may be delayed or approvals reversed in litigation.reversed. If there is a delay in obtaining any required regulatory approvals, or if we fail to obtain or maintain any required approvals or to comply with any applicable laws or regulations, we may not be able to construct or operate our facilities, may not be able to adequately service existing customers or we may be forcedsupport customer growth, or such conditions could cause us to incur additional costs.

A cybersecurity incident has the potential to disrupt normal business operations, expose sensitive information, and/or lead to physical damages.

As a utility provider, maintaining business operations is critical for our customers, business partners, suppliers, and our employees. A disruption in service Such conditions could adverselynegatively impact our reputation, abilityearnings.

Risk Factors that Apply to provide utility services for our customers, as well as impact the media used to communicateSouthwest Gas Holdings, Inc. and exchange information both internally and externally.

We process and store sensitive information including personal identifiable information, intellectual property, and business proprietary information as part of normal business operations. A cybersecurity breach of this information could expose us to monetary and other damages from customers, suppliers, business partners, government agencies, and others. In addition, a breach could increase costs incurred to protect against such risks, introduce financial penalties, and increase regulation for the industry.

Physical damage due to a cybersecurity incident or acts of cyber terrorism could impact utility services provided to our customers and could lead to material liabilities. We have taken the initiative in fortifying the core infrastructure that supports the utility services provided to our customers. While these measures do not eliminate the threats, they do provide layers of defense to mitigate these risks. Even though we have insurance coverage in place for cyber-related risks, if such an attack or act of terrorism were to occur, our operations and financial results could be adversely affected to the extent not fully covered by such insurance coverage.

We may pursue acquisitions and other strategic transactions, the success of which may impact our results of operations, cash flows and financial condition.

The integration of acquisitions requires significant time and resources. Investments of resources would be required to support any acquisition, which could result in significant ongoing operating expenses and may divert resources and management attention from other areas of our business. If we fail to successfully integrate companies we acquire, we may not realize the benefits expected from the transaction and goodwill recorded as a result of the acquisition could be impaired. We assess existing goodwill for impairment annually or more frequently if events or circumstances occur that would more likely than not reduce the fair value of an operating segment below its carrying value. We also assess long-lived assets, including intangible assets associated with acquisitions for impairment whenever events or circumstances indicate that an asset’s carrying amount may not be recoverable. To the extent the value of goodwill or long-lived assets becomes impaired, the impairment charges could have a material impact on our results of operations.

Utility Infrastructure Services

Weather conditions in Centuri’sCenturi’s operating areas can adversely affect operations, financial position, and cash flows.

Centuri’s

Centuri’s results of operations, financial position, and cash flows can be significantly impacted by changes in weather that affect the ability of Centuri to provide utility companies withcontracted-for trenching, installation, and replacement of underground pipes, as well as maintenance services for energy distribution systems. Generally, Centuri’sCenturi’s revenues are lowest during the first quarter of the year due to less favorable winter weather conditions.

These conditions also require certain areas to scale back their workforce at times during the winter season, presenting challenges associated with maintaining an adequately skilled labor force when it comes time to re-staff its work crews following the winter layoffs.

Fixed-price contracts at Centuri are subject to potential losses that could adversely affect results of operations.

Centuri enters into a variety of types of contracts customary in the underground utility construction industry. These contracts include unit-priced contracts (including unit-priced contracts with revenue caps,caps), time and material (cost plus) contracts, and fixed-price (lump sum) contracts. Contracts with caps and fixed-price arrangements can be susceptible to constrained profits, or even losses, especially those contracts that cover an extended-duration performance period. This is due, in part, to the necessity of estimating costs far in advance of the completion date (at bid inception). Unforeseen inflation, or other costs unanticipated at inception, can detrimentally impact profitability for these types of contracts.

Loss of one or more significant customers could adversely affect the results of the constructionutility infrastructure services segment.

During 2016,2019, over half of the constructionutility infrastructure services revenues were generated from seveneight customers. This concentration of risk could be impactful to operating results if construction work slowed or halted with one or more of these customers, if competition for work increased, or if existing contracts were not replaced or extended.

Disruptions in labor relations with Centuri’sCenturi’s employees could adversely affect results of operations.

The majority of Centuri’sCenturi’s labor force is covered by collective bargaining agreements with labor unions, which is typical of the utility constructioninfrastructure services industry. Labor disruptions, boycotts, strikes, or significant negotiated wage and benefit increases at Centuri, whether due to employee turnover or otherwise, could have a material adverse effect on Centuri’sCenturi’s business and our results of operations and cash flows.

Loss of key area personnel and competitive pricing.
The productivity of Centuri’s labor force and its ongoing relationship with clients is largely dependent on those serving in foreman, general foreman, regional, and executive level management positions. The ability to retain these individuals, due in large part to the competitive nature of the utility infrastructure service business, is necessary for the ongoing success and growth of Centuri. Further, the competitive environment within which Centuri performs work creates pricing pressures, specifically when its unionized business segment is bidding against non-union competitors. This competition could adversely impact Centuri’s business, financial condition, results of operations, and cash flows.
Clients’ budgetary constraints, regulatory support or decisions, and financial condition.
The majority of Centuri’s clients are regulated utilities, whose capital budgets are influenced significantly by the various public utility commissions. As a result, the timing and volume of work performed by Centuri is largely dependent on the regulatory environment in its operating areas and the related client capital constraints. If budgets of Centuri’s clients are reduced, or regulatory support for capital projects and programs are diminished, it could have a material adverse effect on our business, results of operations, and cash flows. Additionally, the impact of new regulatory and compliance requirements could result in productivity inefficiencies and adversely impact Centuri’s results of operations and cash flows, or timing delays in their realization.
Changing and uncertain work environment and conditions.
Centuri performs work in a variety of geographic locations, each presenting unique environmental, surface, and subsurface conditions. As a consequence of work being performed under change orders when unexpected conditions are encountered, Centuri periodically experiences delays relating to billing and payment under these altered conditions.


 
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Reliance on third-party suppliers and subcontractors.
While Centuri maintains oversight of those third-party suppliers and subcontractors it utilizes to assist with certain aspects of the work it performs for clients, any delay or failure by these parties in the completion of their portion of a given project may result in delays in the overall progress of the project or cause us to incur additional costs, thereby potentially impacting Centuri’s overall profitability.
Item 1B.

UNRESOLVED STAFF COMMENTS

None.

Item 2.

PROPERTIES

The plant investment of Southwest consists primarily of transmission and distribution mains, compressor stations, peak shaving/storage plants,facilities, service lines, meters, and regulators, which comprise the pipeline systems and facilities located in and around the communities served. Southwest also includes other properties such as land, buildings, furnishings, work equipment, vehicles, and software systems in plant investment.utility plant. The northern Nevada and northern California properties of Southwest are referred to as the northern system; the Arizona, southern Nevada, and southern California properties are referred to as the southern system. Several properties are leased by Southwest. Total gas plant exclusive of leased property, at December 31, 20162019 was $6.3$8 billion, including construction work in progress. It is the opinion of management that the properties of Southwest are suitable and adequate for its purposes.

Substantially all gas main and service lines are constructed across property owned by others underright-of-way grants obtained from the record owners thereof, onunder the streets and on the grounds of municipalities under authority conferred by franchises or otherwise, or onbeneath public highways or public lands under authority of various federal and state statutes. None of the numerous county and municipal franchises are exclusive, and some are of limited duration. These franchises are renewed regularly as they expire, and Southwest anticipates no serious difficulties in obtaining future renewals.

With respect to theright-of-way grants, Southwest generally has had continuous and uninterrupted possession and use of all suchrights-of-way, and the associated gas mains and service lines, commencing with the initial stages of construction of such facilities. Permits have been obtained from public authorities and other governmental entities in certain instances to cross or to lay facilities along roads and highways. These permits typically are revocable at the election of the grantor, and Southwest occasionally must relocate its facilities when requested to do so by the grantor. Permits have also been obtained from railroad companies to cross over or under railroad lands orrights-of-way, which in some instances require annual or other periodic payments and are revocable at the election of the grantors.

Southwest, through two subsidiaries, operates two primary pipeline transmission systems:

a system (including an LNG storage facility) owned by Paiute extending from the Idaho-Nevada border to the Reno, Sparks, and Carson City areas and communities in the Lake Tahoe area in both California and Nevada and other communities in northern and western Nevada; and
a system extending from the Colorado River at the southern tip of Nevada to the Las Vegas distribution area.

a system (including an LNG storage facility) owned by Paiute extending from the Idaho-Nevada border to the Reno, Sparks, and Carson City areas and communities in the Lake Tahoe area in both California and Nevada and other communities in northern and western Nevada; and

a system extending from the Colorado River at the southern tip of Nevada to the Las Vegas distribution area.

Southwest provides natural gas service in parts of Arizona, Nevada, and California. Service areas in Arizona include most of the central and southern areas of the state including Phoenix, Tucson, Yuma, and surrounding communities. Service areas in northern Nevada include Carson City, Yerington, Fallon, Lovelock, Winnemucca, and Elko. Service areas in southern Nevada include the Las Vegas valley (including Henderson and Boulder City), Laughlin, and Laughlin.Mesquite. Service areas in southern California include Barstow, Big Bear, Needles, and Victorville. Service areas in northern California include the Lake Tahoe area and Truckee.

Information on properties of Centuri can be found in this Form10-K under Construction Services.

Utility Infrastructure Services under Part I, which by this reference is incorporated herein.

Item 3.

LEGAL PROCEEDINGS

We

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

operations.

Item 4.

MINE SAFETY DISCLOSURES

Not applicable.


 
12
 



Item 4A.

EXECUTIVE OFFICERS OF THE REGISTRANT

The listing of the executive officers isof the Company are set forth underPart III Item 10. DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE, which by this reference is incorporated herein.

PART II

Item 5.

MARKET FOR REGISTRANT’SREGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS, AND ISSUER PURCHASES OF EQUITY SECURITIES

The principal market on which the common stock of Southwest Gas Holdings, Inc.the Company is traded is the New York Stock Exchange.Exchange and the ticker symbol of the stock is “SWX.” At February 15, 2017,18, 2020, there were 13,48812,032 holders of record of common stock, and the market price of the common stock was $82.93.$79.45. The quarterly market price of,dividends on and dividends on,related information relating to the Company’s common stock required by this item are included in the Company’s 20162019 Annual Report to ShareholdersStockholders filed as an exhibit hereto and incorporated herein by reference.

Dividends are payable on the Company’sCompany’s common stock at the discretion of the Board of Directors (“Board”(the “Board”). In setting the dividend rate, the Board considers, among other factors, current and expected future earnings levels, our ongoing capital expenditure plans and expected external funding needs, our payout ratio, and our ability to maintain strong credit ratings and liquidity. The Company has paid dividends on its common stock since 1956 and has increased that dividend each year since 2007. In February 2017,2020, the Board elected to increase the quarterly dividend from $0.45$0.545 to $0.495$0.570 per share, representing a 10%4.6% increase, effective with the June 20172020 payment. The Board currently targets a payout ratio of 55% to 65% of consolidated earnings per share. The quarterly common stock dividend declared was 36.5 cents per share throughout 2014, 40.5 cents per share throughout 2015, and 45 cents per share throughout 2016.

Item 6.

SELECTED FINANCIAL DATA

Information required by this item is included in the 20162019 Annual Report to ShareholdersStockholders and is incorporated herein by reference.

Item 7.

MANAGEMENT’S

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Information required by this item is included in the 20162019 Annual Report to ShareholdersStockholders and is incorporated herein by reference.

Item 7A.

QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

We are exposed to various forms of market risk, including commodity price risk, weatherrate design risk, interest rate risk, and foreign currency exchange rate risk. The following describes our exposure to these risks.

Commodity Price Risk

In managing its natural gas supply portfolios, Southwest has historically entered into short duration (generally one year or less) fixed-price contracts and variable-price contracts (firm and spot). Southwest has experienced price volatility over the past several years and such volatility is expected to continue into 20172020 and beyond.

Southwest is protected financially from commodity price risk by deferred energy or purchased gas adjustment (collectively “PGA”“PGA”) mechanisms in each of its jurisdictions. These mechanisms generally allow Southwest to defer over- or under-collections of gas costs to PGA balancing accounts. With regulatory approval, Southwest can either refund amounts over-collected or recoup amounts under-collected in future periods. In addition to the PGA mechanism, Southwest utilizes volatility mitigation programs tohas historically utilized Volatility Mitigation Programs (VMPs) in attempt to further reduce price volatility for customers. Under these programs,During 2019, Southwest fixessought to fix the price ofon a portion (up to 25% in the Arizona and California jurisdictions) of its natural gas portfolio using any combination of fixed-price contracts and/orand derivative instruments(fixed-for-floating (fixed-for-floating swaps), and where available, natural gas storage.

In late 2013, For periods beyond October 2020, Southwest does not currently plan to make fixed-price term or swap purchases for the utilization of swaps and fixed-price purchases pursuant to the Volatility Mitigation Program was suspended for Southwest’sArizona or Nevada service territories. Management along with regulatorsjurisdictions, however, it will continue to evaluate this strategy in light of prevailing or anticipated changing market conditions.

Southwest’smake fixed-price purchases for the California jurisdictions.

Southwest’s natural gas purchasing practices are subject to prudence reviewreviews by the various regulatory bodies in each jurisdiction. PGA changes affect cash flows and potentially short-term borrowing requirements, but do not directly impact profit margin.

Weather

Rate Design Risk

Rate design is the primary mechanism available to Southwest to mitigate weather risk. All of Southwest’sSouthwest’s service territories have decoupled rate structures which mitigate weather risk. In California, CPUC regulations allow Southwest to decouple operating margin from usage and offset weather risk.risk based on monthly margin levels. In Nevada and Arizona, a decoupled rate structure applies to most customer classes providingbased on monthly margin per customer benchmarks. All such mechanisms provide stability in annual operating margin by insulating us from the effects of lower usage (including volumes associated with unusual weather). In Arizona, a full revenue decoupling mechanism (currently, with a winter-period monthly weather adjuster), is in place for most customer classes.

 
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With decoupled rate structures, Southwest’sSouthwest’s operating margin is limited during unusually cold weather. Additionally, Southwest is not assured that decoupled rate structures will continue to be supported in future rate cases.

Similarly, while Southwest has in place ongoing infrastructure replacement protocol for old or compromised pipeline, which it replaces regardless of regulatory lag for the recovery of or return on the property being replaced, in recent years, Southwest has been afforded favorable treatment in replacing existing infrastructure that does not pose an immediate threat of rupture, in support of reliability and general safety overall. These programs lessen or remove the financial pitfalls to replacement in between rate cases by providing for the recovery of and return on the expenditures. The programs take many forms, including the replacement of Early Vintage Plastic Pipe, Vintage Steel Pipe, and Customer-Owned Yard Lines, in addition to the conversion of master-metered mobile home parks to individually metered mobile homes. Southwest is not assured that these programs will continue to be supported in future regulatory proceedings.
Interest Rate Risk

Interest rate risk is the risk that changes

Changes in interest rates could adversely affect earnings or cash flows. The primary interest rate risk for usthe Company is the risk of increasing interest rates on variable-rate obligations. Interest rate risk sensitivity analysis is used to measure interest ratethis risk by computing estimated changes in cash flows as a result of assumed changes in market interest rates. In Nevada, fluctuations in interest rates on $150$150 million of variable-rate Industrial Development Revenue Bonds (“IDRBs”(“IDRBs”) are tracked and recovered from ratepayerscustomers through an interest balancing account, which mitigates risk to earnings and cash flows from interest rate fluctuations on these IDRBs between general rate cases. AsThe following table represents the variable rate debt as of December 31, 20162019 and 2015, Southwest had $55 million2018 and $218 million, respectively, in variable-rate debt outstanding, excluding the IDRBs noted above. Assuming a constant outstanding balance on variable-rate debtinterest rate sensitivity analysis for the next twelve months, a hypothetical 1% change in interest rates, would increase or decrease interest expense for the next twelve months by approximately $550,000. As of December 31, 2016 and 2015, Centuri had approximately $148 million and $173 million, respectively, in variable-rate debt outstanding. Assumingassuming a constant outstanding balance in variable-ratesuch debt forover the next twelve months, a hypothetical 1% change in interest rates would increase or decrease interest expense formonths:
(Millions of dollars)
 
2019 (1)
 
Increase/Decrease
in Interest
Expense from 1%
Rate Change
 
2018 (1)
 
Increase/Decrease
in Interest
Expense from 1%
Rate Change
Variable Rate Debt:
 
 
 
 
 
 
 
 
Southwest
 
$
394.0

 
$
3.94

 
$
352.0

 
$
3.52

Centuri
 
304.8

 
3.05

 
255.9

 
2.56

Corporate
 
17.0

 
0.17

 

 

Total Southwest Gas Holdings, Inc.
 
$
715.8

 
$
7.16

 
$
607.9

 
$
6.08

(1) Excludes the next twelve months by approximately $1,480,000.

IDRBs noted above.

Foreign Currency Exchange Rate Risk

We own construction

Centuri owns infrastructure services businesses that operate in Canada. Due to these operations, we arethe Company is exposed to market risk associated with foreign currency exchange rate fluctuations between the Canadian dollar and the U.S. dollar. Foreign currency translation risk is the risk that exchange rate gains or losses arise from translating foreign entities’entities’ statements of income and balance sheets from their functional currency (the Canadian Dollar) to our reporting currency (the U.S. Dollar) for consolidation purposes. During 2016,2019, translation adjustments due to fluctuations in exchange rates were not significant. We do not have significant exposure to other foreign currency exchange rate fluctuations.

Other risk information is included inItem 1A. Risk Factors of this report.

Item 8.

FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

The Consolidated Financial Statementsconsolidated financial statements of Southwest Gas Corporation (the predecessor to Southwest Gas Holdings Inc., which was formed in January 2017) and Subsidiaries, and of Southwest, including the Notesnotes thereto, together with the reportreports of PricewaterhouseCoopers LLP, are included in the 20162019 Annual Report to ShareholdersStockholders and are incorporated herein by reference.

Item 9.

CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE

None.

Item 9A.

CONTROLS AND PROCEDURES

Disclosure Controls and Procedures

We have

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

 
14
 



are designed to provide reasonable assurance that information required to be disclosed in their respective reports filed or submitted under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), is recorded, processed, summarized, and reported within the time periods specified in the SEC’sSEC’s rules and forms and to provide reasonable assurance that such information is accumulated and communicated to our management

of each company, including oureach 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 December 31, 2016,2019, management of Southwest Gas Holdings, Inc., including the Chief Executive Officer and Chief Financial Officer, believes ourbelieve the Company’s disclosure controls and procedures are effective at attaining the level of reasonable assurance noted above.

Based on the most recent evaluation, as of December 31, 2019, management of Southwest Gas Corporation, including the Chief Executive Officer and Chief Financial Officer, believe Southwest’s disclosure controls and procedures are effective at attaining the level of reasonable assurance noted above.
Internal Control Over Financial Reporting

The reports of management of Southwest Gas Holdings, Inc. and Southwest Gas Corporation required to be included herein are incorporated by reference to the information reported in the 2019 Annual Report to Stockholders under the caption “Management’s Report on Internal Control Over Financial Reporting.”
The report of managementthe independent registered public accounting firm required to be reportedincluded herein by Southwest Gas Holdings, Inc. is incorporated by reference to the information reported in the 20162019 Annual Report to ShareholdersStockholders under the caption “Management’s Report on Internal Control Over Financial Reporting” on page 91.

The Attestation Report of the Independent Registered Public Accounting Firm required to be reported herein is incorporated by reference to the information reported in the 2016 Annual Report to Shareholders under the caption “Report of Independent Registered Public Accounting Firm”Firm.”

This annual report on page 92.

Form 10-K does not include an attestation report of Southwest Gas Corporation’s registered public accounting firm regarding internal control over financial reporting pursuant to rules of the SEC that permit Southwest Gas Corporation to provide only management’s report in this annual report on Form 10-K.

Changes in Internal Control Over Financial Reporting
There have been no changes in ourthe Company’s internal controlscontrol over financial reporting (as defined in Rules 13a–15(f)13a-15(f) and15d-15(f) under of the Exchange Act) that occurred during the most recent fiscalfourth quarter of 2019 that have materially affected, or that are reasonably likely to materially affect, ourthe Company’s internal control over financial reporting.

Item 9B.

OTHER INFORMATION

On February 23, 2017,

There have been no changes in Southwest’s internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) of the BoardExchange Act) during the fourth quarter of Directors of2019 that have materially affected, or are likely to materially affect Southwest Gas Holdings, Inc. approved the following compensation program established by the Compensation Committee, which established, for eligible employees, new annual and long-term incentive programs under the Management Incentive Plan and the 2006 Restricted Stock/Unit Plan. The named executive officers currently serving as officers are participants in both programs.

Annual incentives under the Management Incentive Plan will be payable in cash and will be based on net income measures, customer satisfaction, safety, and operations and maintenance expense per customer. The annual incentives will be subject to minimum thresholds. The target annual incentive opportunity and the range of payments for the named executive officers are as follows:

’s internal control over financial reporting.

Named Executive Officer

Item 9B.
Target Annual
Incentive (as percentage

of base salary)
Range of
Payment Relative to
Target (if earned)

John P. Hester, President and Chief Executive Officer

100%70% to 140%

Roy R. Centrella, Senior Vice President/Chief Financial Officer

60%70% to 140%

Karen S. Haller, Senior Vice President/General Counsel and Corporate Secretary

60%70% to 140%

Eric DeBonis, Senior Vice President/Operations

50%70% to 140%
OTHER INFORMATION

As of January 1, 2017, the named executive officers were granted time-based restricted stock unit awards under the 2006 Restricted Stock/Unit Plan. Each time-based restricted stock unit award is eligible to vest as to 40% of the covered shares on the first anniversary of the grant date, and as to 30% of the covered shares on each of the second and third anniversaries of the grant date. The restricted stock unit awards for the named executive officers are as follows:

None.
PART III

Named Executive Officer

Award (as percentage
of base salary)

John P. Hester

60%

Roy R. Centrella

30%

Karen S. Haller

30%

Eric DeBonis

30%

Performance-based incentive opportunities under the 2006 Restricted Stock/Unit Plan were granted in the form of performance shares and will be based on, depending on the officer, consolidated earnings per share, utility net income, and return on equity, with an adjustment based on relative total shareholder return, in each case measured over three years. The target performance share opportunities and the range of performance share payments for the three-year performance period from January 1, 2017, to December 31, 2019, for the named executive officers are as follows:

Named Executive Officer

Target Award
(as percentage
of base salary)
Range of Award
Payment Relative to
Target (if earned)

John P. Hester

140%50% to 195%

Roy R. Centrella

  70%50% to 195%

Karen S. Haller

  70%50% to 195%

Eric DeBonis

  60%50% to 195%

The foregoing descriptions of the awards are qualified by reference to the applicable administrative provisions of the Management Incentive Plan and the 2006 Restricted Stock/Unit Plan, which are incorporated herein by reference to the 2016 Proxy Statement filed on Schedule 14A on March 31, 2016 and 2014 Proxy Statement filed on Schedule 14A on March 26, 2014, respectively.

PART III

Item 10.

DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE

(a)Identification of Directors. Information with respect to Directors iswill be set forth under the heading “Election“Election of Directors”Directors” in the definitive Southwest Gas Holdings, Inc. 20172020 Proxy Statement, which will be filed with the SEC within 120 days after December 31, 2019 and by this reference is incorporated herein.


 
15
 



(b)Identification of Executive Officers. The following sets forth the name, age, position, and period the position was held during the last five years for each of the Executive Officers of the Company as of December 31, 2016 are as follows:

2019
.

Name

 

Age

 

Position

 

Period Position
Held

John P. Hester

 
54
57
 

President and Chief Executive Officer

President

Executive Vice President

Senior Vice President/Regulatory Affairs & Energy Resources

*
 

2015-Present

2014-2015

2013-2014

2012-2013

Karen S. Haller
 
56

Roy R. Centrella

 
59

Senior

Executive Vice President/Chief FinancialLegal and Administrative Officer

*
 

2012-Present

2019-Present
 
 
 
 
Executive Vice President/Chief Legal and Administrative Officer and Corporate Secretary *
 
2018-2019

Eric DeBonis

 
 
49
 
 

Senior Vice President/Operations

Senior Vice President/Staff Operations & Technology

2012-Present

2012

Karen S. Haller

53

Senior Vice President/General Counsel and Corporate Secretary

*

 
2015-2018
Gregory J. Peterson
 
60
 
Senior Vice President/Chief Financial Officer *
 
2018-Present
 
 
 
 
Vice President/Controller/Chief Accounting Officer *
 
2015-2018
Eric DeBonis
 
52
 
Senior Vice President/Operations **
 
2015-Present
Jose L. Esparza, Jr.
 
45
 
Senior Vice President/Information Services/Customer Engagement **
 
2019-Present
 
 
 
 
Vice President/Customer Engagement **
 
2018-2019
 
 
 
 
Vice President/Energy Solutions **
 
2015-2018
Justin L. Brown
 
47
 
Senior Vice President/General Counsel Compliance**
 
2018-Present
 
 
 
 
Vice President/Regulation & Public Affairs **
 
2015-2018
Paul M. Daily
 
63
 
President and Chief Executive Officer and Corporate Secretary

- Centuri Group, Inc.
 

2012-Present

2012

2016-Present
*
Position held at Southwest Gas Holdings, Inc. (formed January 2017) and Southwest Gas Corporation

Anita M. Romero

**
54

Senior Vice President/Staff Operations & Technology

Vice President/Information Services

Vice President/Special Projects

2013-Present

2012-2013

2012

Kenneth J. Kenny

54

Vice President/Finance/Treasurer

2012-Present

Gregory J. Peterson

57

Vice President/Controller and Chief Accounting Officer

2012-Present

Position held at Southwest Gas Corporation only

(c) Identification of Certain Significant Employees. None.

(d)Family Relationships. No Directors or Executive Officers are related either by blood, marriage, or adoption.

(e)Business Experience.Experience. Information with respect to Directors iswill be set forth under the heading “Election“Election of Directors”Directors” in the definitive Southwest Gas Holdings,2020 Proxy Statement, which will be filed with the SEC within 120 days after December 31, 2019 and by this reference is incorporated herein. All executive officers have held responsible positions with the Company for at least five years as described in (b) above with the exception of Paul M. Daily, Chief Executive Officer of Centuri Group, Inc. 2017Prior to his position with Centuri, Mr. Daily founded Paul M. Daily & Associates in 2014 and served as principal advisor to stakeholders in long-term planning for growth and diversification, both organically and through mergers and acquisitions.
(f) Involvement in Certain Legal Proceedings. None.
(g) Promoters and Control Persons. None.
(h) Audit Committee Financial Expert. Information with respect to the designated financial experts of the Board of Directors’ audit committee will be set forth under the heading “Committees of the Board” in the definitive 2020 Proxy Statement, which by this reference is incorporated herein. All Executive Officers have held responsible positions with us for at least five years as described in (b) above.

(f)Involvement in Certain Legal Proceedings. None.

(g)Promoters and Control Persons. None.

(h)Audit Committee Financial Expert.Information with respect to the financial expert of the Board of Directors’ audit committee is set forth under the heading “Committees of the Board” in the definitive Southwest Gas Holdings, Inc. 2017 Proxy Statement, which by this reference is incorporated herein.

(i)

(i) Identification of the Audit Committee.Committee. Information with respect to the composition of the Board of Directors’Directors’ audit committee iswill be set forth under the heading “Committees“Committees of the Board”Board” in the definitive Southwest Gas Holdings, Inc. 20172020 Proxy Statement, which will be filed with the SEC within 120 days after December 31, 2019 and by this reference is incorporated herein.

(j) Material Changes in Director Nomination Procedures for Security Holders. None.

Section 16(a) Beneficial Ownership Reporting Compliance. We have adopted procedures to assist directors and executive officers in complying with

Delinquent Section 16(a) ofReports. Information with respect to delinquent Section 16(a) reports will be set forth under the Exchange Act which includes assistingheading “Delinquent Section 16(a) Reports” in the preparation of forms for filing. Based upon a review of filingsdefinitive 2020 Proxy Statement, which will be filed with the SEC within 120 days after December 31, 2019 and written representations that no other reports were required, we believe that all directors and executive officers complied during 2016 with the reporting requirements of Section 16(a) of the Exchange Act.

by this reference is incorporated herein.

Code of Business Conduct and Ethics.We have adopted a code of business conduct and ethics for employees, including the president and chief executive officer, chief financial officer, chief accounting officer, andnon-employee directors. A code of ethics is defined as written standards that are reasonably designed to deter wrongdoing and to promote: 1) honest and ethical conduct;

 
16
 



2) full, fair, accurate, timely, and understandable disclosure in reports and documents that a registrant files; 3) compliance with applicable governmental laws, rules, and regulations; 4) the prompt internal reporting of violations of the code to an appropriate person or persons identified in the code; and 5) accountability for adherence to the code. The Code of Business Conduct and Ethics can be viewed on theour website (www.swgasholdings.com). If any substantive amendments to the Code of Business Conduct and Ethics are made or any waivers are granted, including any implicit waiver, from a provision of the Code of Business Conduct &and Ethics, to our president and chief executive officer, chief financial officer and chief accounting officer, the nature of such amendment or waiver will be disclosed on www.swgasholdings.com.

www.swgasholdings.com.

Item 11.

EXECUTIVE COMPENSATION

Information with respect to executive compensation iswill be set forth under the heading “Executive Compensation”“Executive Compensation” in the definitive Southwest Gas Holdings, Inc. 20172020 Proxy Statement, which will be filed with the SEC within 120 days after December 31, 2019 and by this reference is incorporated herein.

(a)Compensation Committee Interlocks and Insider Participation. Information with respect to Compensation Committee interlocks and insider participation is set forth under the heading “Governance“Governance of the Company”Company” in the definitive Southwest Gas Holdings, Inc. 20172020 Proxy Statement, which by this reference is incorporated herein.

(b) Compensation Committee Report. Information with respect to the Compensation Committee Report is set forth under the heading “Compensation“Compensation Committee Report”Report” in the definitive Southwest Gas Holdings, Inc. 20172020 Proxy Statement, which by this reference is incorporated herein.

Item 12.

SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER MATTERS

(a) Security Ownership of Certain Beneficial Owners. Information with respect to security ownership of certain beneficial owners is set forth under the heading “Securities“Securities Ownership by Directors, Director Nominees, Executive Officers, and Certain Beneficial Owners”Owners” in the definitive Southwest Gas Holdings, Inc. 20172020 Proxy Statement, which will be filed with the SEC within 120 days after December 31, 2019 and by this reference is incorporated herein.

(b) Security Ownership of Management. Information with respect to security ownership of management is set forth under the heading “Securities“Securities Ownership by Directors, Director Nominees, Executive Officers, and Certain Beneficial Owners”Owners” in the definitive Southwest Gas Holdings, Inc. 20172020 Proxy Statement, which will be filed with the SEC within 120 days after December 31, 2019 and by this reference is incorporated herein.

(c) Changes in Control. None.

(d)Securities Authorized for Issuance Under Equity Compensation Plans. At
The following table sets forth the number of securities authorized for issuance under the Company’s equity compensation plans at December 31, 2016, we had stock-based compensation plans for Southwest employees. We previously granted options2019.
Plan category
 
Number of 
securities
to be issued
 upon
vesting of award
 
Weighted-average
grant 
date fair 
value
of award
 
Number of securities
remaining available
for future issuance
(excluding securities reflected in column a)
(Thousands of shares)
 
(a)
 
(b)
 
(c)
Equity compensation plans approved by security holders:
 
 
 
 
 
 
Management Incentive Plan shares
 
29

 
$
79.16

 
701

Restricted Stock Units (1)
 
365

 
60.94

 
1,220

Total Equity compensation plans approved by security holders
 
394

 

 
1,921

Equity compensation plans not approved by security holders
 

 

 

Total
 
394

 
$

 
1,921

(1)The number of securities to purchase shares of common stock to key employees and outside directors. The option grants in 2006 consumed the remaining options that could be issued underupon vesting of awards includes 111,000 performance shares, which was derived by assuming that target performance will be achieved during the option plan. All options have been exercised. Information with regardrelevant performance period. The number of securities remaining available for future issuance includes shares relating to the managementOmnibus incentive plan and the restricted stock/unit plan is provided in the following tables.

Pursuant to the terms of the management incentive plan, we may issue performance shares to encourage key employees to remain employed to achieve short-term and long-term performance goals.

Plan category

  Number of securities
to be issued upon
vesting of performance
shares
   Weighted-average
grant date fair value
of award
   Number of securities
remaining available for
future issuance
(excluding securities
reflected in column a)
 
   (a)   (b)   (c) 
(Thousands of shares)            

Equity compensation plans approved by security holders

   168    $55.62     818  

Equity compensation plans not approved by security holders

   —       —       —    
  

 

 

   

 

 

   

 

 

 

Total

   168    $55.62     818  
  

 

 

   

 

 

   

 

 

 

Pursuant to the terms of the restricted stock/unit plan, we may award restricted stock and restricted stock units to attract, motivate, retain and reward key employees with incentives for high levels of individual performance and improved financial performance and to attract, motivate, and retain experienced and knowledgeable independent directors.

Plan category

  Number of securities
to be issued upon
vesting of restricted
stock units
   Weighted-average
grant date fair value
of award
   Number of securities
remaining available
for future issuance
(excluding securities
reflected in column
a)
 
   (a)   (b)   (c) 
(Thousands of shares)            

Equity compensation plans approved by security holders

   262    $46.41     365  

Equity compensation plans not approved by security holders

   —       —       —    
  

 

 

   

 

 

   

 

 

 

Total

   262    $46.41     365  
  

 

 

   

 

 

   

 

 

 

plan.

Additional information regarding the equity compensation plans is included in Note 119 - Share-Based Compensation of the Notesnotes to Consolidated Financial Statementsconsolidated financial statements in the 20162019 Annual Report to Shareholders.

Stockholders.

 
17
 



Item 13.

CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE

Information with respect to certain relationships and related transactions, and director independence is set forth under the heading “Governance“Governance of the Company”Company” in the definitive Southwest Gas Holdings, Inc. 20172020 Proxy Statement, which will be filed with the SEC within 120 days after December 31, 2019 and by this reference is incorporated herein.

Item 14.

PRINCIPAL ACCOUNTING FEES AND SERVICES

Information with respect to accounting fees and services associated with PricewaterhouseCoopers LLP is set forth under the heading “Selection“Selection of Independent Registered Public Accounting Firm”Firm” in the definitive Southwest Gas Holdings, Inc. 20172020 Proxy Statement, which by this reference is incorporated herein.

PART IV

Item 15.

EXHIBITS, FINANCIAL STATEMENT SCHEDULES

(a)

The following documents are filed as part of this report on Form10-K:

(1)

The Consolidated Financial Statements of the Company (including the Report of Independent Registered Public Accounting Firm) required to be reported herein are incorporated by reference to the information reported in the 2016 Annual Report to Shareholders under the following captions:


 
18
 



PART IV
Item 15.
EXHIBITS, FINANCIAL STATEMENT SCHEDULES
(a) The following documents are filed as part of this report on Form 10-K:
(1) The Consolidated Financial Statements of the Company and Southwest (including the Report of Independent Registered Public Accounting Firm) required to be reported herein are incorporated by reference to the information reported in the 2019 Annual Report to Stockholders under the following captions:
 
 
Southwest Gas Holdings, Inc. Consolidated Balance Sheets
23

Southwest Gas Holdings, Inc. Consolidated Statements of Income
24

Southwest Gas Holdings, Inc. Consolidated Statements of Comprehensive Income
25

Southwest Gas Holdings, Inc. Consolidated Statements of Cash Flows
26

Southwest Gas Holdings, Inc. Consolidated Statements of Equity
27

Southwest Gas Corporation Consolidated Balance Sheets

28
38

29
40

30
41

31
42

32
44

33
46

Management’s

77
91

78

Report of Independent Registered Public Accounting Firm
92
80

(2)

All schedules have been omitted because the required information is either inapplicable or included in the Notes to Consolidated Financial Statements.

(3)

SeeLIST OF EXHIBITS.

(b)

SeeLIST OF EXHIBITS.

Item 16.

FORM 10–K SUMMARY.

None.

(2) All schedules have been omitted because the required information is either inapplicable or included in the notes to consolidated financial statements.
(3) See LIST OF EXHIBITS

.
(b) See LIST OF EXHIBITS.
Item 16.
FORM 10–K SUMMARY.
None.

Exhibit Number

 
19

Description of Document

 



2.01

Exhibit
Number
 

Description of Document
2.01
 
 
 
 

2.02

3(i)
 

Agreement and Plan of Merger, dated December 28, 2016, by and among Southwest Gas Corporation, Southwest Reorganization Co. and Southwest Gas Holdings, Inc. Incorporated herein by reference to Exhibit 2.2 toForm 8-K dated December 28, 2016, FileNo. 1-07850.

3(i)

Articles

 
 
 

3(i)

3(ii)
 

Articles of Incorporation with Statement of Conversion of Southwest Gas Corporation.

3(ii)

 
 
 

3(ii)

4.01
 

Bylaws of Southwest Gas Corporation.

4.01

 
 
 

4.02

 

 
 
 

4.03

 

 
 
 

4.04

 

 
 
 

4.05

  

Certificate of Trust of Southwest Gas Capital III. Incorporated herein by reference to Exhibit 4.04 to Form S–3 dated August 7, 2003, FileNo. 333-106419.

4.06

Certificate of Trust of Southwest Gas Capital IV. Incorporated herein by reference to Exhibit 4.05 to Form S–3 dated August 7, 2003, FileNo. 333-106419.

Exhibit Number

Description of Document

4.07

Trust Agreement of Southwest Gas Capital III. Incorporated herein by reference to Exhibit 4.07 to FormS-3 dated August 7, 2003, FileNo. 333-106419.

4.08

Trust Agreement of Southwest Gas Capital IV. Incorporated herein by reference to Exhibit 4.08 to FormS-3 dated August 7, 2003, FileNo. 333-106419.

4.09

Form of Southwest Gas Holdings, Inc. Common Stock Certificate. Incorporated herein by reference to Exhibit 4.1 to FormS-3 dated January 4, 2017, FileNo. 333-208609-01.

4.10

Form of Southwest Gas Corporation Common Stock Certificate. Incorporated herein by reference to Exhibit 4 to Form8-K dated July 22, 2003, FileNo. 1-07850.

4.11

Indenture of Trust between Clark County, Nevada, and the Bank of New York Trust Company, N.A. as Trustee, dated as of October 1, 2005, relating to Clark County, Nevada Industrial Development Revenue Bonds Series 2005A. Incorporated herein by reference to Exhibit 4.1 to Form10-Q for the quarter ended September 30, 2005, FileNo. 1-07850.

4.12

Indenture of Trust between Clark County, Nevada, and the Bank of New York Trust Company, N.A. as Trustee, dated as of September 1, 2006, relating to Clark County, Nevada Industrial Development Revenue Bonds Series 2006A. Incorporated herein by reference to Exhibit 4.01 to Form10-Q for the quarter ended September 30, 2006, FileNo. 1-07850.

4.13

 
 
 

4.14

4.06
  

 
 
 

4.15

4.07
  

 
 
 

4.16

4.08
  

 
 
 

4.17

4.09
  

 
 
 

4.18

4.10
  

 
 
 

4.19

4.11
  

 
 
 

4.20

4.12
  

 
 
 





4.21

Exhibit
Number
 

Description of Document
4.13
  
 
 
 

4.22

4.14
  

Exhibit Number

 
 

Description of Document

 
4.15

4.23

  

 
 
 

4.24

4.16
  

 
 
 

4.25

4.17
  

 
 
 
4.18
 
 
 
 
4.19
 
 
 
 
4.20
 
 
 
 

4.26

4.21
 

 
 
 
4.22
 
 
 
 
4.23
 
 
 
 
4.24*
 
 
 
 
4.25
  
The Company and Southwest hereby agree to furnish to the SEC, upon request, a copy of any instruments defining the rights of holders of long-term debt issued by Southwest Gas Holdings or its subsidiaries; the total amount of securities authorized thereunder does not exceed 10% of the consolidated total assets of Southwest Gas Holdings and its subsidiaries.

 
 
 

10.01

  

 
 
 

10.02 *

10.02*
  

 
 
 
10.03*
  
 
 
 

10.03 *

10.04*
  

 
 
 

10.04 *

10.05*
  

Form of Change in Control Agreement with Officers. Incorporated herein by reference to Exhibit 10.1 to Form8-K dated November 14, 2013, FileNo. 1-07850.

10.05 *

Southwest Gas Corporation Management Incentive Plan, amended and restated. Incorporated herein by reference to Appendix A to the Proxy Statement dated March 26, 2014, File No. 1–07850.

10.06 *

Southwest Gas Corporation Executive Deferral Plan, amended and restated March 1, 2008, effective January 1, 2005. Southwest Gas Corporation Executive Deferral Plan, amended and restated effective January 1, 2009. Incorporated herein by reference to Exhibit 10.10 to Form10-K for the year ended December 31, 2008, FileNo. 1-07850.

10.07 *





10.08

Exhibit
Number
 

Description of Document
 
 
 
10.06
  
 
 
 

10.09

10.07
  

Exhibit Number

 
 

Description of Document

 
10.08

10.10

  

 
 
 

10.11

10.09
  

 
 
 

10.12

10.10
  

 
 
 

10.13

10.11
  

 
 
 

10.14

10.12
  

 
 
 

10.15

10.13
  

 
 
 

10.16 *

10.14*
  

 
 
 
10.15*
  
 
 
 
10.16*
  
 
 
 
10.17
  
 
 
 

10.17

10.18
  

NPL (Centuri) $300

 
 
 

10.18

10.19*
  

Amendment No. 1 to Credit Agreeement, dated as of January 13, 2016, by and among NPL Construction Co. and

 
 
 
10.20*
  
 
 
 
10.21*
  
 
 
 





Exhibit
Number
 
Description of Document
10.22*
  
 
 
 
10.23*
  
 
 
 
10.24*
  
 
 
 

10.19 *

10.25
  

 
 
 
10.26*
 
 
 
 
10.27*
 
 
 
 
10.28*
 
 
 
 
10.29*
 
 
 
 
10.30*
 
 
 
 
10.31*
 
 
 
 
10.32*
 
 
 
 
10.33*
 
 
 
 

10.20 *

10.34*
 

 
 
 

12.02

13.01
  

Computation of Ratios of Earnings to Fixed Charges of Southwest Gas Corporation.

13.01

 
 
 

21.01

  

 
 
 

23.01

  

 
 
 
23.02
  
 
 
 
31.01
  
 
 
 
31.02
  
 
 
 
32.01
  
 
 
 
32.02
  
 
 
 
101.INS
  
XBRL Instance Document - the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.
 
 
 




31.02

Southwest Gas Corporation Section 302 Certifications.

32.01

Exhibit
Number
 

Southwest Gas Corporation Section 906 Certifications.

Description of Document
101.SCH

101.INS

  

XBRL Instance Document

101.SCH

XBRL Schema Document

 
 
 

101.CAL

  

XBRL Calculation Linkbase Document

 
 
 

101.LAB

  

XBRL Label Linkbase Document

 
 
 

101.PRE

  

XBRL Presentation Linkbase Document

 
 
 

101.DEF

  

XBRL Definition Linkbase Document

*

 

 
 
104
 
Cover Page Interactive Data File (embedded within the Inline XBRL document).
 
 
 
* Management Contracts or Compensation Plans








Southwest Gas Holdings, Inc.
SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) 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

HOLDINGS, INC.
 
 
 
 

 
 
(registrant)

 
 
 
 
 
 
 
Date: March 2, 2020
 
 
 
By:
 
/s/ JOHN P. HESTER
 
 
 
 
 
 
John P. Hester
 
 
 
 
President and Chief Executive Officer


Date: February 28, 2017

 
25

By:  

/S/ JOHN P. HESTER
John P. Hester
President and Chief Executive Officer
 




Southwest Gas Holdings, Inc.
SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the Registrant and in the capacities and on the dates indicated.

Signature

  

Title

 

Date

 
 
 
 
 
/s/ ROBERT L. BOUGHNER
  
Director
 
March 2, 2020
(Robert L. Boughner)
 
 
 
 
 
 
 
 
 
/s/ JOSÉ A. CÁRDENAS
  
Director
 
March 2, 2020
(José A. Cárdenas)
 
 
 
 
 
 
 
 
 
/s/ THOMAS E. CHESTNUT
  
Director
 
March 2, 2020
(Thomas E. Chestnut)
 
 
 
 
 
 
 
 
 
/s/ STEPHEN C. COMER
  
Director
 
March 2, 2020
(Stephen C. Comer)
 
 
 
 
 
 
 
 
 
/s/ JOHN P. HESTER
  
Director, President and Chief Executive
 
March 2, 2020
(John P. Hester)
 
Officer
 
 
 
 
 
 
 
/s/ JANE LEWIS-RAYMOND
 
Director
 
March 2, 2020
(Jane Lewis-Raymond)
 
 
 
 
 
 
 
 
 
/s/ ANNE L. MARIUCCI
  
Director
 
March 2, 2020
(Anne L. Mariucci)
 
 
 
 
 
 
 
 
 
/s/ MICHAEL J. MELARKEY
  
Chairman of the Board
 
March 2, 2020
(Michael J. Melarkey)
 
of Directors
 
 
 
 
 
 
 
/s/ A. RANDALL THOMAN
  
Director
 
March 2, 2020
(A. Randall Thoman)
 
 
 
 
 
 
 
 
 
/s/ THOMAS A. THOMAS
  
Director
 
March 2, 2020
(Thomas A. Thomas)
 
 
 
 
 
 
 
 
 
/s/ LESLIE T. THORNTON
  
Director
 
March 2, 2020
(Leslie T. Thornton)
 
 
 
 
 
 
 
 
 
/s/ GREGORY J. PETERSON
  
Senior Vice President/
 
March 2, 2020
(Gregory J. Peterson)
 
Chief Financial Officer
 
 
 
 
 
 
 
/s/ LORI L. COLVIN
  
Vice President/Controller/
 
March 2, 2020
(Lori L. Colvin)
 
Chief Accounting Officer
 
 


 
26
 



Southwest Gas Corporation
SIGNATURES
Pursuant to the requirements of Section 13 or 15(d) 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)
 
 
 
 
 
 
 
Date: March 2, 2020
 
 
 
By:
/S/s/ JOHN P. HESTER

(

 
 
 
 
 
 
John P. Hester)

Hester
 
 

Director,

 
 
President and Chief Executive Officer



February 28, 2017

 
27
 



Southwest Gas Corporation
SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the Registrant and in the capacities and on the dates indicated.
 
 
 
 
 
 
Signature
 
Title
 
Date
 
 
 
 
 
/Ss/ JOHN P. HESTER
 
Director, President and Chief Executive
 
March 2, 2020
(John P. Hester)
 
Officer
 
 
 
 
 
 
 
/s/ MICHAEL J. MELARKEY

 
Director
 
March 2, 2020
(Michael J. Melarkey)

 

Director

 
 
February 28, 2017
 
 
 
 
 
 
/s/ KAREN S. HALLER
 
Director, Executive Vice President/Chief Legal
 
March 2, 2020
(Karen S. Haller)
 
and Administrative Officer
 
 
 
 
 
 
 
/s/ GREGORY J. PETERSON
 
Director, Senior Vice President/
 
March 2, 2020
(Gregory J. Peterson)
 
Chief Financial Officer
 
 
 
 
 
 
 
/s/ LORI L. COLVIN
 
Vice President/Controller/
 
March 2, 2020
(Lori L. Colvin)
 
Chief Accounting Officer
 
 


/S/ KAREN S. HALLER

(Karen S. Haller)

 
28

Director, Senior Vice President/General Counsel and Corporate Secretary

February 28, 2017

/S/ ROY R. CENTRELLA

(Roy R. Centrella)

Director, Senior Vice President/Chief Financial Officer

February 28, 2017

/S/ GREGORY J. PETERSON

(Gregory J. Peterson)

Vice President, Controller, and Chief Accounting Officer

February 28, 2017
 

26