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Service List

Agendas:
August 29, 2023, Agenda of Commission Meeting
August 13, 2024, Agenda of Commission Meeting

Minutes:
Minutes of the August 29, 2023 Commission Meeting
Minutes of the August 13, 2024, Commission Meeting

Click For Comments and Responses

Natural Gas Rate Increase Request Information Guide

• 09/01/23 - Order Assessing Filing Fee; Order Suspending Operation of Proposed Rates; Order Authorizing Executive Director to Enter into Consulting Contracts
• 08/16/24 - Order Granting Joint Motion for Approval of Settlement Stipulation; Order Approving Settlement Stipulation; Order Approving Refund Plan

• 08/15/23 - Montana-Dakota Utilities Co., a Subsidiary of MDU Resources Group, Inc.'s Letter regarding Increase to Its Natural Gas Rates
  
  • Application and Notice
    
  • Attestation
    
  • Exhibit A - Report of Tariff Schedule Change
    
  • Exhibit B - Public Rate Increase Notice
    
  • Exhibit C - Notice of Filing Bill Insert
    
  • Appendix A - Current Tariff Pages
    
  • Appendix B - Proposed Tariff Pages
    
    • Redlined Proposed Tariff Sheets
      
• Direct Testimony
  
• Nicole A. Kivisto's Direct Testimony
  
• Tammy J. Nygard's Direct Testimony
• Christopher M. Wall’s Direct Testimony
  
  • Exhibit No. ___(CMW-2) Schedule 1, Resume
    
  • Exhibit No. ___(CMW-2) Schedule 2, Summary of Cost Equity Analysis Results
    
  • Exhibit No. ___(CMW-2) Schedule 3, Proxy Group Screening Data and Results
    
  • Exhibit No. ___(CMW-2) Schedule 4, 30-day Constant Growth DCF
    
  • Exhibit No. ___(CMW-2) Schedule 5, Capital Asset Pricing Model
    
  • Exhibit No. ___(CMW-2) Schedule 6, Historical Value Line Beta
    
  • Exhibit No. ___(CMW-2) Schedule 7, Market Risk Premium Derived from SP 500 Index
    
  • Exhibit No. ___(CMW-2) Schedule 8, Analysis
    
  • Exhibit No. ___(CMW-2) Schedule 9, Size Premium Calculation
    
  • Exhibit No. ___(CMW-2) Schedule 10, Floatation Cost Adjustment
  • Exhibit No. ___(CMW-2) Schedule 11, 2024-2027 Capital Expenditures as a Percentage of 2022 Net Plant
    
  • Exhibit No. ___(CMW-2) Schedule 12, Regulatory Risk Assessment
    
  • Exhibit No. ___(CMW-2) Schedule 13, Capital Structure Analysis
    
• Russel Nishikawa’s Direct Testimony
• Jesse Volk’s Direct Testimony
  
• Larry E. Kennedy’s Direct Testimony Exhibit No. LEK-1
  
  • Exhibit No. LEK-2, Resume
    
  • Exhibit No. LEK-3, 2022 Depreciation Gas Report
    
  • Exhibit No. LEK-4, Common Report
    
• Michael J. Adams’ Direct Testimony
  
  • Exhibit MJA-1, Resume
    
  • Exhibit MJA-2, Cash Working Capital Leads/Lags
    
• Nathan A. Bensen’s Direct Testimony
  
  • Exhibit No. ___(NAB-1), Normalization Summary
    
• Tara R. Vesey’s Direct Testimony
  
  • Exhibit No. ___ (TRV-1), Projected Operating Income and Rate of Return
    
  • Exhibit No. ___ (TRV-2), Pension Balance Summary
    
• Ronald J. Amen’s Direct Testimony
  
• Appendix A, Resume
  
  • Exhibit No. ___ (RJA-1), Proposed Revenue Allocation
    
  • Exhibit No. ___ (RJA-3), Rate Schedule Bill Comparisons
    
• Stephanie Bosch’s Direct Testimony
  
• Exhibit No. ___ (SB-1), Firm General Contracted Demand Service Rate 74
  
• Exhibit No. ___ (SB-2), Summary Billing Plan Rate 115
  
• Statement/Schedule Index
  
• Statement A – Balance Sheet
  
• Notes to Financial Statements
  
• Statement B – Income Statement
  
• Statement C – Retained Earnings
  
• Statement D – Plant in Service – Gas Utility
  
  • Schedule D-1 - Detailed Cost of Plant - Gas Utility
    
  • Schedule D-2 - Book Changes in Gas Plant in Service
    
  • Schedule D-3 - Plant in Service Average - Gas Utility
    
  • Schedule D-4 - Book Changes in Gas Plant in Service - Previous Years
    
  • Schedule D-5 - Methods and Procedures Followed in Capitalizing AFUDC and Other Construction Overheads
    
  • Schedule D-6 - Significant Changes in Intangible Plant
    
  • Schedule D-7 - Working Papers on Plant Not Used and Useful
    
  • Schedule D-8 - Description of Property Records
    
  • Schedule D-9 - Gas Plant Acquisitions Without Regulatory Approval
    
• Statement E - Accumulated Reserve for Depreciation
  
  • Schedule E-1 -  Book Changes in Accumulated Provision for Depreciation and Amortization
    
  • Schedule E-2 - Procedures Followed in Depreciating or Amortizing Plant and Recording Abandonment
    
  • Schedule E-3 - Allocation of Overall Accumulated Reserve Accounts to Functional Groups of Plants
    
• Statement F - Working Capital and Other Deductions
  
  • Schedule F-1 - Materials and Supplies by Principal Item of Main Account
    
  • Schedule F-2 - Materials and Supplies - Previous Years
    
  • Schedule F-3 - Customer Advances for Construction
    
• Statement G - Average Utility Capital Structure
  
• Statement G - Long-Term Debt
  
• Statement G - Preferred Stock
  
• Statement G - Utility Common Equity
  
  • Schedule G-1 - Stock Dividends, Stock Splits or Changes in Par or Stated Value
    
  • Schedule G-2 - Common Stock Data - Five Years
    
  • Schedule G-3 - Earnings Per Share for Claimed Rate of Return
    
• Statement H - Summary of Operation and Maintenance Expenses
  
  • Schedule H-1 - Operation and Maintenance Expenses Pro Forma
    
  • Schedule H-2 - Cost of Gas
    
  • Schedule H-3 - Administrative and General Operation and Maintenance Expenses
    
  • Schedule H-4 - Intercompany Transactions
    
• Statement I - Operating Revenues
  
• Statement J - Summary of Depreciation Expense
  
  • Schedule J-1 - Depreciation Expense Charged to Other Than Prescribed Depreciation and Amortization Expense
    
• Statement K - Income Taxes
  
  • Schedule K-1 - Reconciliation of Net Income Per Books with Taxable Income Per Federal Income Tax Return
  • Schedule K-2 - Difference in Book and Tax Depreciation
    
  • Schedule K-3 - Net Taxable Income (Loss) for Each Company Included in MDU Resources Group Inc.'s 2021 Consolidated Federal Income Tax Return
    
  • Schedule K-4 - Allowance for Current Tax in Excess of Tax Calculated at Consolidated Tax Rate
  • Schedule K-5 - Allowance for Current State Income Taxes Calculated at Consolidate Tax Rate
    
• Statement L - Taxes Other Than Income
  
  • Schedule L-1 - Ad Valorem Taxes
    
• Statement M - Overall Cost of Service
• Statement N - Allocated Cost of Service
  
  • Schedule N-1 – Embedded Class Cost of Service Study, Cost of Service by Component
    
  • Schedule N-2 – Embedded Class Cost of Service Study, 12 Months Ended December 31, 2022
    
  • Schedule N-3 – Allocation Factor Report
    
• Statement O - Comparison of Cost of Service
  
  • Schedule O-1 - Derivation of Increased Rates  
• Statement P - Pro Forma Cost of Gas
  
• Statement Q - Description of Utility Operations
  
• Statement R - Intercompany Transactions
  
• Workpapers Index
  
  • Statement F Workpapers – Working Capital
    
  • Statement H Workpapers – Operation and Maintenance Expenses
    
  • Statement I Workpapers – Operating Revenues
    
  • Statement J Workpapers – Depreciation and Amortization Expense
    
  • Statement K Workpapers – Income Taxes
    
  • Statement N Workpapers – Class Cost of Service
• 09/11/23 - Staff’s First Set of Data Requests to Montana-Dakota Utilities Co. Certificate of Service
• 09/26/23 - Montana-Dakota Utilities Co., a Subsidiary of MDU Resources Group, Inc.'s Letter regarding Request for Confidential Treatment, Staff's Data Request Set 1 (1-2)
• 01/05/24 - Staff’s Second Set of Data Requests to Montana-Dakota Utilities Co. Certificate of Service
• 01/26/24 - Montana-Dakota Utilities Co., a Subsidiary of MDU Resources Group, Inc.'s Letter regarding Notice of Intent to Implement Interim Natural Gas Service Rates
  • Notice of Intent to Implement Interim Natural Gas Service Rates
    • Attachment A
      • Tariff Pages
      • Redlined Tariff Pages
    • Attachment B - Calculation and Allocation of Interim Rate Increase
    • Attachment C - Report of Tariff Schedule Change Form
    • Attachment D - Customer Notice
    • Attachment E - Bill Insert
• 01/29/24 - Staff’s Third Set of Data Requests to Montana-Dakota Utilities Co. Certificate of Service
• 02/02/24 - Staff’s Fourth Set of Data Requests to Montana-Dakota Utilities Co. Certificate of Service
• 02/21/24 - Staff’s Fifth Set of Data Requests to Montana-Dakota Utilities Co. Certificate of Service
• 03/12/24 - Staff’s Sixth Set of Data Requests to Montana-Dakota Utilities Co. Certificate of Service
• 06/14/24 - Montana-Dakota Utilities Co., a Subsidiary of MDU Resources Group, Inc.'s Letter regarding Request for Waiver of SDCL 49-34A-17(3)
• 07/26/24 - Joint Motion for Approval of Settlement Stipulation (between Montana-Dakota Utilities Co., a Subsidiary of MDU Resources Group, Inc. and the Staff of the South Dakota Public Utilities Commission)
  
  • Settlement Stipulation
    • Exhibit A - Revised Tariff Pages
      • Redlined
    • Exhibit B - Depreciation Rates
    • Exhibit C - Interim Refund Plan
    • Exhibit D - Customer Notice
• 07/26/24 - PUC Staff Memorandum Supporting Settlement Stipulation
  
• PUC Staff Memorandum Supporting Settlement Stipulation Confidential (not available to the public)
• Attachment A - Summary of Revenue Requirement Issues
  
• Revenue Requirement
  • Exhibit___(PJS-1) Schedule 1 - SD Gas Revenue Requirement
  • Exhibit___(PJS-1) Schedule 2 - SD Gas Operating Income Statement Summary
  • Exhibit___(PJS-1) Schedule 3 - SD Gas Operating Income Statement with Known and Measurable Adjustments
  • Exhibit___(PJS-2) Schedule 1 - SD Gas Rate Base Summary
  • Exhibit___(PJS-2) Schedule 2 - SD Gas Rate Base with Known and Measurable Adjustments
  • Exhibit___(PJS-3) - Interest Synchronization Adjustment
  • Exhibit___(PJS-4) – Cash Working Capital
  • Exhibit___(PJS-5) – Advanced Tax Collections
  • Exhibit___(PJS-6) – Working Capital Updates
  • Exhibit___(PJS-7) – Other Operating Revenues
  • Exhibit___(BAM-1) – Pro Forma Plant in Service
  • Exhibit___(BAM-2) Schedule 1 – Annualization of Test Year Non-Revenue Producing Plant Additions
  • Exhibit___(BAM-2) Schedule 2 – Annualization of Test Year Non-Revenue Producing Plant Additions – Depreciation & Deferred Taxes
  • Exhibit___(BAM-3) – Post-Test Year Non-Revenue Producing Plant Additions
  • Exhibit___(BAM-4) – Depreciation Expense
  • Exhibit___(BAM-5) – Adjustments to Depreciation and Amortization Expense and Depreciation Charged to Clearing Accounts
  • Exhibit___(BAM-6) – Intangible Plant Amortization
  • Exhibit___(BAM-7) – Changes to Per Books Depreciation Due to New Rates
  • Exhibit___(BAM-8) – Accumulated Reserve for Depreciation
  • Exhibit___(BAM-9) – Deferred Income Tax on Plant in Service and Plant Additions
  • Exhibit___(BAM-10) – Vehicles and Work Equipment
  • Exhibit___(BLC-1) Schedule 1 – Cost of Capital
    • Exhibit___(BLC-1) Schedule 1 – Cost of Capital Confidential (not available to the public)
  • Exhibit___(BLC-1) Schedule 2 – Weather Normalization
  • Exhibit___(EJP-1) – Cost of Gas Adjustment
  • Exhibit___(EJP-2) – Labor Expense Adjustment
  • Exhibit___(EJP-2) Workpaper – Labor Expense Adjustment
  • Exhibit___(EJP-3) – Benefits Expense Adjustment
  • Exhibit___(EJP-4) – Subcontract Labor Adjustment
  • Exhibit___(EJP-5) – Materials Adjustment
  • Exhibit___(EJP-6) – Company Consumption Adjustment
  • Exhibit___(EJP-7) – Ad Valorem Taxes Adjustment
  • Exhibit___(EJP-8) – Payroll Taxes Adjustment
  • Exhibit___(JMR-1) Schedule 1 – Software Maintenance Expense Adjustment
  • Exhibit___(JMR-1) Schedule 2 – Uncollectible Accounts Adjustment
  • Exhibit___(JMR-1) Schedule 3 – Advertising Adjustment
  • Exhibit___(JMR-1) Schedule 4 – Insurance Expense Adjustment
  • Exhibit___(JMR-1) Schedule 5 – Industry Dues Adjustment
  • Exhibit___(JMR-1) Schedule 6 – Rate Case Expense Adjustment
  • Exhibit___(JG-1) – New Depreciation Rates of Rate Design
  • Exhibit___(EJP-9) Schedule 1 – Rate Design by Customer Class Summary
  • Exhibit___(EJP-9) Schedule 2-1 – Residential Service
  • Exhibit___(EJP-9) Schedule 2-2 – Firm General Service
  • Exhibit___(EJP-9) Schedule 2-3 – Small Interruptible Service
  • Exhibit___(EJP-9) Schedule 2-4 – Large Interruptible Service
  • Exhibit___(EJP-9) Schedule 3 – Bill Comparison
• 09/05/24 - Montana-Dakota Utilities Co.'s Letter Responding to Commission Questions
• 09/11/24 - Montana-Dakota Utilities Co.'s Letter Regarding Supplemental Information
• 09/12/24 - Docket Closed
• 12/05/24 - Montana-Dakota Utilities Co.'s Letter regarding Interim Rate Refund Compliance Filing
  • Attachment A - Interim Rate Refund Factor
  • Attachment B - Summary of Refund Applied November 14, 2024