SEC Info - Southwest Gas Holdings, Inc., et al. - ‘10-Q’ for 9/30/19

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Southwest Gas Holdings, Inc., et al. – ‘10-Q’ for 9/30/19 – ‘EX-101.DEF’

On: Wednesday, 11/6/19, at 4:42pm ET · For: 9/30/19 · Accession #: 1692115-19-71 · File #s: 1-07850, 1-37976

  As Of               Filer                 Filing    For·On·As Docs:Size

11/06/19  Southwest Gas Holdings, Inc.      10-Q        9/30/19   83:15M
          Southwest Gas Corp

Quarterly Report — Form 10-Q — Sect. 13 / 15(d) – SEA’34
Filing Table of Contents

Document/Exhibit                   Description                      Pages   Size 

 1: 10-Q        Quarterly Report                                    HTML   2.19M 
 2: EX-31.01    Certification -- §302 - SOA'02                      HTML     38K 
 3: EX-31.02    Certification -- §302 - SOA'02                      HTML     38K 
 4: EX-32.01    Certification -- §906 - SOA'02                      HTML     30K 
 5: EX-32.02    Certification -- §906 - SOA'02                      HTML     30K 
39: R1          Cover                                               HTML     89K 
64: R2          Condensed Consolidated Balance Sheets               HTML    168K 
54: R3          Condensed Consolidated Balance Sheets               HTML     34K 
                (Parenthetical)                                                  
14: R4          Condensed Consolidated Statements of Income         HTML    112K 
38: R5          Condensed Consolidated Statements of Comprehensive  HTML     84K 
                Income                                                           
63: R6          Condensed Consolidated Statements of Cash Flows     HTML    145K 
53: R7          Condensed Consolidated Statements of Equity         HTML    119K 
13: R8          Background, Organization, and Summary of            HTML    147K 
                Significant Accounting Policies                                  
40: R9          Components of Net Periodic Benefit Cost             HTML    121K 
25: R10         Revenue                                             HTML    167K 
34: R11         Leases                                              HTML    272K 
79: R12         Derivatives                                         HTML     83K 
48: R13         Common Stock                                        HTML     44K 
26: R14         Long-Term Debt                                      HTML    147K 
35: R15         Short-Term Debt                                     HTML     28K 
80: R16         Other Comprehensive Income and Accumulated Other    HTML    358K 
                Comprehensive Income                                             
49: R17         Segment Information                                 HTML    134K 
27: R18         Redeemable Noncontrolling Interests                 HTML     34K 
33: R19         Business Acquisitions                               HTML     70K 
66: R20         Background, Organization, and Summary of            HTML     64K 
                Significant Accounting Policies (Policies)                       
55: R21         Background, Organization, and Summary of            HTML    125K 
                Significant Accounting Policies (Tables)                         
11: R22         Components of Net Periodic Benefit Cost (Tables)    HTML    119K 
36: R23         Revenue (Tables)                                    HTML    167K 
67: R24         Leases (Tables)                                     HTML    173K 
56: R25         Derivatives (Tables)                                HTML     82K 
12: R26         Common Stock (Tables)                               HTML     38K 
37: R27         Long-Term Debt (Tables)                             HTML    140K 
65: R28         Other Comprehensive Income and Accumulated Other    HTML    361K 
                Comprehensive Income (Tables)                                    
57: R29         Segment Information (Tables)                        HTML    135K 
52: R30         Redeemable Noncontrolling Interests (Tables)        HTML     30K 
82: R31         Business Acquisitions (Tables)                      HTML     64K 
32: R32         Background, Organization, and Summary of            HTML     40K 
                Significant Accounting Policies - Schedule of                    
                Other Property and Investments (Detail)                          
24: R33         Background, Organization, and Summary of            HTML     57K 
                Significant Accounting Policies - Additional                     
                Information (Detail)                                             
51: R34         Background, Organization, and Summary of            HTML     31K 
                Significant Accounting Policies - Accounts                       
                Receivable for Services (Detail)                                 
81: R35         Background, Organization, and Summary of            HTML     41K 
                Significant Accounting Policies - Schedule of                    
                Goodwill (Details)                                               
31: R36         Background, Organization, and Summary of            HTML     57K 
                Significant Accounting Policies- Other Income                    
                (Deductions) (Detail)                                            
23: R37         Components of Net Periodic Benefit Cost (Detail)    HTML     55K 
50: R38         Revenue - Additional Information (Detail)           HTML     34K 
83: R39         Revenue - Revenue Performance Obligation (Details)  HTML     31K 
60: R40         Revenue - Schedule of Gas Operating Revenue         HTML     49K 
                (Detail)                                                         
70: R41         Revenue - Summary of Revenue Disaggregated by       HTML     52K 
                Service Type, and Contract Type (Detail)                         
44: R42         Revenue - Summary of Information about Receivables  HTML     31K 
                (Detail)                                                         
19: R43         Revenue - Schedule of Construction Services         HTML     36K 
                Contracts Receivable (Detail)                                    
59: R44         Leases - Additional Information (Details)           HTML     49K 
69: R45         Leases - Components of Lease Expense (Details)      HTML     43K 
43: R46         Leases - Supplemental Cash Flow Information         HTML     43K 
                Related to Leases (Details)                                      
18: R47         Leases - Supplemental Information Related to        HTML     57K 
                Leases Included in Balance Sheet (Details)                       
58: R48         Leases - Schedule of Maturities of Lease            HTML     71K 
                Liabilities (Details)                                            
71: R49         Leases - Schedule of Rental and Lease Payments      HTML     31K 
                (Details)                                                        
76: R50         Leases - Schedule of Future Minimum Rental          HTML     52K 
                Payments for Operating Leases (Details)                          
45: R51         Derivatives - Notional Amounts under Swaps          HTML     27K 
                Contracts (Detail)                                               
20: R52         Derivatives - Paid to and Received from             HTML     30K 
                Counterparties for Settlements of Matured Swaps                  
                (Detail)                                                         
29: R53         Derivatives - Swaps in Balance Sheet (Detail)       HTML     44K 
77: R54         Derivatives - Additional Information (Detail)       HTML     26K 
46: R55         Common Stock (Detail)                               HTML     64K 
21: R56         Long-Term Debt - Schedule of Long-Term Debt         HTML    158K 
                (Detail)                                                         
30: R57         Long-Term Debt - Additional Information (Detail)    HTML     86K 
75: R58         Short-Term Debt (Detail)                            HTML     39K 
47: R59         Other Comprehensive Income and Accumulated Other    HTML    104K 
                Comprehensive Income - Related Tax Effects                       
                Allocated to OCI (Detail)                                        
15: R60         Other Comprehensive Income and Accumulated Other    HTML     27K 
                Comprehensive Income - Additional Information                    
                (Detail)                                                         
41: R61         Other Comprehensive Income and Accumulated Other    HTML    138K 
                Comprehensive Income - AOCI Rollforward (Details)                
73: R62         Other Comprehensive Income and Accumulated Other    HTML     35K 
                Comprehensive Income - Amounts Recognized Before                 
                Tax, Defined Benefit Plans (Detail)                              
61: R63         Segment Information - Additional Information        HTML     26K 
                (Detail)                                                         
16: R64         Segment Information - Schedule of Reporting         HTML     54K 
                Information (Detail)                                             
42: R65         Redeemable Noncontrolling Interests - Additional    HTML     30K 
                Information (Detail)                                             
74: R66         Redeemable Noncontrolling Interests - Summary of    HTML     31K 
                Redeemable Noncontrolling Interest (Detail)                      
62: R67         Business Acquisitions - Narrative (Detail)          HTML     47K 
17: R68         Business Acquisitions - Summary of Fair Values of   HTML     88K 
                Assets Acquired and Liabilities Assumed (Detail)                 
78: XML         IDEA XML File -- Filing Summary                      XML    151K 
68: XML         XBRL Instance -- swx930201910q_htm                   XML   4.97M 
22: EXCEL       IDEA Workbook of Financial Reports                  XLSX    107K 
 7: EX-101.CAL  XBRL Calculations -- swx-20190930_cal                XML    345K 
 8: EX-101.DEF  XBRL Definitions -- swx-20190930_def                 XML    966K 
 9: EX-101.LAB  XBRL Labels -- swx-20190930_lab                      XML   1.78M 
10: EX-101.PRE  XBRL Presentations -- swx-20190930_pre               XML   1.15M 
 6: EX-101.SCH  XBRL Schema -- swx-20190930                          XSD    187K 
28: JSON        XBRL Instance as JSON Data -- MetaLinks              388±   588K 
72: ZIP         XBRL Zipped Folder -- 0001692115-19-000071-xbrl      Zip    383K

‘EX-101.DEF’ — XBRL Definitions — swx-20190930_def

This Exhibit is an XBRL XML File.

<?xml version="1.0" encoding="windows-1252"?>

<link:linkbase xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">

<link:roleRef roleURI="http://www.swgas.com/role/BackgroundOrganizationAndSummaryOfSignificantAccountingPolicies" xlink:href="swx-20190930.xsd#BackgroundOrganizationAndSummaryOfSignificantAccountingPolicies" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/BackgroundOrganizationAndSummaryOfSignificantAccountingPoliciesAccountsReceivableForServicesDetail" xlink:href="swx-20190930.xsd#BackgroundOrganizationAndSummaryOfSignificantAccountingPoliciesAccountsReceivableForServicesDetail" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/BackgroundOrganizationAndSummaryOfSignificantAccountingPoliciesAdditionalInformationDetail" xlink:href="swx-20190930.xsd#BackgroundOrganizationAndSummaryOfSignificantAccountingPoliciesAdditionalInformationDetail" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/BackgroundOrganizationAndSummaryOfSignificantAccountingPoliciesOtherIncomeDeductionsDetail" xlink:href="swx-20190930.xsd#BackgroundOrganizationAndSummaryOfSignificantAccountingPoliciesOtherIncomeDeductionsDetail" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/BackgroundOrganizationAndSummaryOfSignificantAccountingPoliciesPolicies" xlink:href="swx-20190930.xsd#BackgroundOrganizationAndSummaryOfSignificantAccountingPoliciesPolicies" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/BackgroundOrganizationAndSummaryOfSignificantAccountingPoliciesScheduleOfGoodwillDetails" xlink:href="swx-20190930.xsd#BackgroundOrganizationAndSummaryOfSignificantAccountingPoliciesScheduleOfGoodwillDetails" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/BackgroundOrganizationAndSummaryOfSignificantAccountingPoliciesScheduleOfOtherPropertyAndInvestmentsDetail" xlink:href="swx-20190930.xsd#BackgroundOrganizationAndSummaryOfSignificantAccountingPoliciesScheduleOfOtherPropertyAndInvestmentsDetail" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/BackgroundOrganizationAndSummaryOfSignificantAccountingPoliciesTables" xlink:href="swx-20190930.xsd#BackgroundOrganizationAndSummaryOfSignificantAccountingPoliciesTables" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/BusinessAcquisitions" xlink:href="swx-20190930.xsd#BusinessAcquisitions" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/BusinessAcquisitionsNarrativeDetail" xlink:href="swx-20190930.xsd#BusinessAcquisitionsNarrativeDetail" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/BusinessAcquisitionsSummaryOfFairValuesOfAssetsAcquiredAndLiabilitiesAssumedDetail" xlink:href="swx-20190930.xsd#BusinessAcquisitionsSummaryOfFairValuesOfAssetsAcquiredAndLiabilitiesAssumedDetail" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/BusinessAcquisitionsTables" xlink:href="swx-20190930.xsd#BusinessAcquisitionsTables" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/CommonStock" xlink:href="swx-20190930.xsd#CommonStock" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/CommonStockDetail" xlink:href="swx-20190930.xsd#CommonStockDetail" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/CommonStockTables" xlink:href="swx-20190930.xsd#CommonStockTables" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/ComponentsOfNetPeriodicBenefitCost" xlink:href="swx-20190930.xsd#ComponentsOfNetPeriodicBenefitCost" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/ComponentsOfNetPeriodicBenefitCostDetail" xlink:href="swx-20190930.xsd#ComponentsOfNetPeriodicBenefitCostDetail" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/ComponentsOfNetPeriodicBenefitCostTables" xlink:href="swx-20190930.xsd#ComponentsOfNetPeriodicBenefitCostTables" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/CondensedConsolidatedBalanceSheets" xlink:href="swx-20190930.xsd#CondensedConsolidatedBalanceSheets" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/CondensedConsolidatedBalanceSheetsParenthetical" xlink:href="swx-20190930.xsd#CondensedConsolidatedBalanceSheetsParenthetical" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/CondensedConsolidatedStatementsOfCashFlows" xlink:href="swx-20190930.xsd#CondensedConsolidatedStatementsOfCashFlows" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/CondensedConsolidatedStatementsOfComprehensiveIncome" xlink:href="swx-20190930.xsd#CondensedConsolidatedStatementsOfComprehensiveIncome" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/CondensedConsolidatedStatementsOfEquity" xlink:href="swx-20190930.xsd#CondensedConsolidatedStatementsOfEquity" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/CondensedConsolidatedStatementsOfIncome" xlink:href="swx-20190930.xsd#CondensedConsolidatedStatementsOfIncome" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/Cover" xlink:href="swx-20190930.xsd#Cover" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/Derivatives" xlink:href="swx-20190930.xsd#Derivatives" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/DerivativesAdditionalInformationDetail" xlink:href="swx-20190930.xsd#DerivativesAdditionalInformationDetail" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/DerivativesNotionalAmountsUnderSwapsContractsDetail" xlink:href="swx-20190930.xsd#DerivativesNotionalAmountsUnderSwapsContractsDetail" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/DerivativesPaidToAndReceivedFromCounterpartiesForSettlementsOfMaturedSwapsDetail" xlink:href="swx-20190930.xsd#DerivativesPaidToAndReceivedFromCounterpartiesForSettlementsOfMaturedSwapsDetail" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/DerivativesSwapsInBalanceSheetDetail" xlink:href="swx-20190930.xsd#DerivativesSwapsInBalanceSheetDetail" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/DerivativesTables" xlink:href="swx-20190930.xsd#DerivativesTables" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/Leases" xlink:href="swx-20190930.xsd#Leases" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/LeasesAdditionalInformationDetails" xlink:href="swx-20190930.xsd#LeasesAdditionalInformationDetails" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/LeasesComponentsOfLeaseExpenseDetails" xlink:href="swx-20190930.xsd#LeasesComponentsOfLeaseExpenseDetails" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/LeasesScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesDetails" xlink:href="swx-20190930.xsd#LeasesScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesDetails" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/LeasesScheduleOfMaturitiesOfLeaseLiabilitiesDetails" xlink:href="swx-20190930.xsd#LeasesScheduleOfMaturitiesOfLeaseLiabilitiesDetails" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/LeasesScheduleOfRentalAndLeasePaymentsDetails" xlink:href="swx-20190930.xsd#LeasesScheduleOfRentalAndLeasePaymentsDetails" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/LeasesSupplementalCashFlowInformationRelatedToLeasesDetails" xlink:href="swx-20190930.xsd#LeasesSupplementalCashFlowInformationRelatedToLeasesDetails" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/LeasesSupplementalInformationRelatedToLeasesIncludedInBalanceSheetDetails" xlink:href="swx-20190930.xsd#LeasesSupplementalInformationRelatedToLeasesIncludedInBalanceSheetDetails" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/LeasesTables" xlink:href="swx-20190930.xsd#LeasesTables" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/LongTermDebt" xlink:href="swx-20190930.xsd#LongTermDebt" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/LongTermDebtAdditionalInformationDetail" xlink:href="swx-20190930.xsd#LongTermDebtAdditionalInformationDetail" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/LongTermDebtScheduleOfLongTermDebtDetail" xlink:href="swx-20190930.xsd#LongTermDebtScheduleOfLongTermDebtDetail" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/LongTermDebtTables" xlink:href="swx-20190930.xsd#LongTermDebtTables" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/OtherComprehensiveIncomeAndAccumulatedOtherComprehensiveIncome" xlink:href="swx-20190930.xsd#OtherComprehensiveIncomeAndAccumulatedOtherComprehensiveIncome" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/OtherComprehensiveIncomeAndAccumulatedOtherComprehensiveIncomeAdditionalInformationDetail" xlink:href="swx-20190930.xsd#OtherComprehensiveIncomeAndAccumulatedOtherComprehensiveIncomeAdditionalInformationDetail" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/OtherComprehensiveIncomeAndAccumulatedOtherComprehensiveIncomeAmountsRecognizedBeforeTaxDefinedBenefitPlansDetail" xlink:href="swx-20190930.xsd#OtherComprehensiveIncomeAndAccumulatedOtherComprehensiveIncomeAmountsRecognizedBeforeTaxDefinedBenefitPlansDetail" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/OtherComprehensiveIncomeAndAccumulatedOtherComprehensiveIncomeAociRollforwardDetails" xlink:href="swx-20190930.xsd#OtherComprehensiveIncomeAndAccumulatedOtherComprehensiveIncomeAociRollforwardDetails" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/OtherComprehensiveIncomeAndAccumulatedOtherComprehensiveIncomeRelatedTaxEffectsAllocatedToOciDetail" xlink:href="swx-20190930.xsd#OtherComprehensiveIncomeAndAccumulatedOtherComprehensiveIncomeRelatedTaxEffectsAllocatedToOciDetail" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/OtherComprehensiveIncomeAndAccumulatedOtherComprehensiveIncomeTables" xlink:href="swx-20190930.xsd#OtherComprehensiveIncomeAndAccumulatedOtherComprehensiveIncomeTables" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/RedeemableNoncontrollingInterests" xlink:href="swx-20190930.xsd#RedeemableNoncontrollingInterests" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/RedeemableNoncontrollingInterestsAdditionalInformationDetail" xlink:href="swx-20190930.xsd#RedeemableNoncontrollingInterestsAdditionalInformationDetail" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/RedeemableNoncontrollingInterestsSummaryOfRedeemableNoncontrollingInterestDetail" xlink:href="swx-20190930.xsd#RedeemableNoncontrollingInterestsSummaryOfRedeemableNoncontrollingInterestDetail" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/RedeemableNoncontrollingInterestsTables" xlink:href="swx-20190930.xsd#RedeemableNoncontrollingInterestsTables" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/Revenue" xlink:href="swx-20190930.xsd#Revenue" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/RevenueAdditionalInformationDetail" xlink:href="swx-20190930.xsd#RevenueAdditionalInformationDetail" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/RevenueRevenuePerformanceObligationDetails" xlink:href="swx-20190930.xsd#RevenueRevenuePerformanceObligationDetails" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/RevenueScheduleOfConstructionServicesContractsReceivableDetail" xlink:href="swx-20190930.xsd#RevenueScheduleOfConstructionServicesContractsReceivableDetail" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/RevenueScheduleOfGasOperatingRevenueDetail" xlink:href="swx-20190930.xsd#RevenueScheduleOfGasOperatingRevenueDetail" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/RevenueSummaryOfInformationAboutReceivablesDetail" xlink:href="swx-20190930.xsd#RevenueSummaryOfInformationAboutReceivablesDetail" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/RevenueSummaryOfRevenueDisaggregatedByServiceTypeAndContractTypeDetail" xlink:href="swx-20190930.xsd#RevenueSummaryOfRevenueDisaggregatedByServiceTypeAndContractTypeDetail" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/RevenueTables" xlink:href="swx-20190930.xsd#RevenueTables" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/SegmentInformation" xlink:href="swx-20190930.xsd#SegmentInformation" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/SegmentInformationAdditionalInformationDetail" xlink:href="swx-20190930.xsd#SegmentInformationAdditionalInformationDetail" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/SegmentInformationScheduleOfReportingInformationDetail" xlink:href="swx-20190930.xsd#SegmentInformationScheduleOfReportingInformationDetail" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/SegmentInformationTables" xlink:href="swx-20190930.xsd#SegmentInformationTables" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/ShortTermDebt" xlink:href="swx-20190930.xsd#ShortTermDebt" xlink:type="simple"/>

<link:roleRef roleURI="http://www.swgas.com/role/ShortTermDebtDetail" xlink:href="swx-20190930.xsd#ShortTermDebtDetail" xlink:type="simple"/>

<link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all" xlink:type="simple"/>

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<link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain" xlink:type="simple"/>

<link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member" xlink:type="simple"/>

<link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension" xlink:type="simple"/>

<link:definitionLink xlink:role="http://www.swgas.com/role/BackgroundOrganizationAndSummaryOfSignificantAccountingPolicies" xlink:type="extended"/>

<link:definitionLink xlink:role="http://www.swgas.com/role/BackgroundOrganizationAndSummaryOfSignificantAccountingPoliciesAccountsReceivableForServicesDetail" xlink:type="extended">

<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SegmentReportingInformationLineItems" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_82B6EFDCD4EA4B5A806ED2461921748B" xlink:type="locator"/>

<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_41A292FC54A8108FB733D246192168B7" xlink:type="locator"/>

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<link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_LegalEntityAxis" xlink:label="loc_dei_LegalEntityAxis_9B0560AADF3ED5DE6023D246192113FB" xlink:type="locator"/>

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Filing Submission 0001692115-19-000071 – Alternative Formats (Word / Rich Text, HTML, Plain Text, et al.)

Southwest Gas Holdings, Inc., et al. – ‘10-Q’ for 9/30/19 – ‘EX-101.DEF’

On: Wednesday, 11/6/19, at 4:42pm ET · For: 9/30/19 · Accession #: 1692115-19-71 · File #s: 1-07850, 1-37976

Previous ‘10-Q’: ‘10-Q’ on 8/7/19 for 6/30/19 · Next: ‘10-Q’ on 5/7/20 for 3/31/20 · Latest: ‘10-Q’ on 11/8/23 for 9/30/23

Quarterly Report — Form 10-Q — Sect. 13 / 15(d) – SEA’34Filing Table of Contents

‘EX-101.DEF’ — XBRL Definitions — swx-20190930_def

This Exhibit is an XBRL XML File.

Quarterly Report — Form 10-Q — Sect. 13 / 15(d) – SEA’34
Filing Table of Contents