UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
FORM 10-Q
QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the quarterly period ended June 30, 20212022
OR
TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the transition period from _____________ to ______________
Commission file number 1-03480
MDU RESOURCES GROUP INC
(Exact name of registrant as specified in its charter)
Delaware30-1133956
(State or other jurisdiction of
incorporation or organization)
(I.R.S. Employer Identification No.)

1200 West Century Avenue
P.O. Box 5650
Bismarck, North Dakota 58506-5650
(Address of principal executive offices)
(Zip Code)
(701) 530-1000
(Registrant's telephone number, including area code)
Securities registered pursuant to Section 12(b) of the Act:
Title of each classTrading symbol(s)Name of each exchange on which registered
Common Stock, par value $1.00 per shareMDUNew York Stock Exchange
Indicate by check mark whether the 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 the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes  No .
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company," and "emerging growth company" in Rule 12b-2 of the Exchange Act.
Large Accelerated FilerAccelerated Filer
Non-Accelerated FilerSmaller 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 the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes  No .
Indicate the number of shares outstanding of each of the issuer's classes of common stock, as of July 29, 2021: 202,430,9302022: 203,350,740 shares.
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Definitions
The following abbreviations and acronyms used in this Form 10-Q are defined below:
Abbreviation or Acronym
20202021 Annual ReportCompany's Annual Report on Form 10-K for the year ended December 31, 20202021
AFUDCAllowance for funds used during construction
ASCFASB Accounting Standards Codification
ASUFASB Accounting Standards Update
Brazilian Transmission LinesCompany's former investment in companies owning three electric transmission lines in Brazil
CascadeCascade Natural Gas Corporation, an indirect wholly owned subsidiary of MDU Energy Capital
CentennialCentennial Energy Holdings, Inc., a direct wholly owned subsidiary of the Company
Centennial CapitalCentennial Holdings Capital LLC, a direct wholly owned subsidiary of Centennial
Centennial ResourcesCentennial Energy Resources LLC, a former direct wholly owned subsidiary of Centennial
CompanyMDU Resources Group, Inc.
COVID-19Coronavirus disease 2019. In March 2020, the World Health Organization declared the COVID-19 outbreak a pandemic and the President of the United States declared the COVID-19 outbreak a national emergency.
Coyote CreekCoyote Creek Mining Company, LLC, a subsidiary of The North American Coal Corporation
Coyote Station427-MW coal-fired electric generating facility near Beulah, North Dakota (25 percent ownership)
Diamond WillowDiamond Willow Wind Farm located in Montana
dkDecatherm
Dodd-Frank ActDodd-Frank Wall Street Reform and Consumer Protection Act
EPAUnited States Environmental Protection Agency
Exchange ActSecurities Exchange Act of 1934, as amended
FASBFinancial Accounting Standards Board
FERCFederal Energy Regulatory Commission
Federal ReserveFederal Reserve System, the central banking system of the United States.
FidelityFidelity Exploration & Production Company, a direct wholly owned subsidiary of WBI Holdings (previously referred to as the Company's exploration and production segment)
GAAPAccounting principles generally accepted in the United States of America
GHGGreenhouse gas
Great PlainsGreat Plains Natural Gas Co., a public utility division of Montana-Dakota
IBEWInternational Brotherhood of Electrical Workers
ICWUInternational Chemical Workers Union
IntermountainIntermountain Gas Company, an indirect wholly owned subsidiary of MDU Energy Capital
IPUCIdaho Public Utilities Commission
IRSInternal Revenue Service
Knife RiverKnife River Corporation, a direct wholly owned subsidiary of Centennial
kWhKilowatt-hour
LIBORLondon Inter-bank Offered Rate
MD&AManagement's Discussion and Analysis of Financial Condition and Results of Operations
MDU Construction ServicesMDU Construction Services Group, Inc., a direct wholly owned subsidiary of Centennial
MDU Energy CapitalMDU Energy Capital, LLC, a direct wholly owned subsidiary of the Company
MISOMidcontinent Independent System Operator, Inc., the organization that provides open-access transmission services and monitors the high-voltage transmission system in the Midwest United States and Manitoba, Canada and a southern United States region which includes much of Arkansas, Mississippi, and Louisiana.
MMcfMillion cubic feet
MMdkMillion dk
MNPUCMinnesota Public Utilities Commission
Montana-DakotaMontana-Dakota Utilities Co., a direct wholly owned subsidiary of MDU Energy Capital
MWMegawatt
NDDEQNorth Dakota Department of Environmental Quality
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NDPSCNorth Dakota Public Service Commission
NERCNorth American ElectricityElectric Reliability Corporation
Non-GAAPNot in accordance with GAAP
OilIncludes crude oil and condensate
PHMSAPipeline and Hazardous Materials Safety Administration
Regional Haze RuleThe EPA developed the Regional Haze Rule requiring states to develop and implement comprehensive plans to reduce human-caused regional haze in designated areas such as national parks and wilderness areas.
SDPUCSouth Dakota Public Utilities Commission
SECUnited States Securities and Exchange Commission
Securities ActSecurities Act of 1933, as amended
SOFRSecured Overnight Financing Rate
SPPSouthwest Power Pool, the organization that manages the electric grid and wholesale power market for the central United States.
TSATransportation Security Administration
VIEVariable interest entity
Washington DOEWashington State Department of Ecology
WBI EnergyWBI Energy, Inc., an indirect wholly owned subsidiary of WBI Holdings
WBI HoldingsWBI Holdings, Inc., a direct wholly owned subsidiary of Centennial
WUTCWashington Utilities and Transportation Commission
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Introduction
The Company's mission is to deliver superior value to stakeholders by providing essential infrastructure and services to America. The Company isgenerates, transmits and distributes electricity and provides natural gas distribution, transportation and storage services that are regulated by state public service commissions and/or the FERC. The Company also provides construction services to a regulated energy deliveryvariety of industries, including commercial, industrial and utility customers, and provides construction materials through aggregate mining and services business. The organizational entitymarketing of related products, such as ready-mix concrete, asphalt and asphalt oil.
Montana-Dakota was originally incorporated as Montana-Dakota under the state laws of Delaware in 1924. Pursuant to an internal holding company reorganization completed on January 1, 2019, theThe Company was incorporated under the state laws of Delaware.Delaware in 2018 upon the completion of an internal holding company reorganization, which resulted in Montana-Dakota becoming a subsidiary of the Company. Its principal executive offices are located at 1200 West Century Avenue, P.O. Box 5650, Bismarck, North Dakota 58506-5650, telephone (701) 530-1000.
On August 4, 2022, the Company announced its Board of Directors unanimously approved a plan to pursue the separation of Knife River from the Company. The Company's strategyseparation is planned as a tax-free spinoff transaction to deliver superior value withthe Company’s stockholders for U.S. federal income tax purposes. The separation is expected to result in two independent, publicly traded and well-capitalized companies: (1) MDU Resources Group, Inc., the existing company and (2) Knife River, a two-platform model, regulated energy delivery and construction materials and services businesses, while also pursuing organic growth opportunities and using a disciplined approach to strategic acquisitions of well-managed companies and properties.
The Company focuses on infrastructure and is Building a Strong America® by providing essential products and services through its regulated energy delivery and construction materials and services platforms, which are both comprised of different operating segments. Most of these segments experience seasonality related to the industries in which they operate. The two-platform approach helps balance this seasonality and the risk associated with each type of industry. Through its regulated energy delivery platform, the Company generates, transmits and distributes electricity and provides natural gas distribution, transportation and storage services. These businesses are regulated by state public service commissions and/or the FERC. The construction materials and services platform provides construction services to a variety of industries, including commercial, industrial and governmental customers, and provides construction materials through aggregate mining and marketing of related products, such as ready-mixed concrete, asphalt and asphalt oil.contracting company.
The Company is organized into five reportable business segments. These business segments include: electric, natural gas distribution, pipeline, construction materials and contracting, and construction services. The Company's business segments are determined based on the Company's method of internal reporting, which generally segregates the strategic business units due to differences in products, services and regulation. The internal reporting of these segments is defined based on the reporting and review process used by the Company's chief executive officer.
The Company, through its wholly owned subsidiary, MDU Energy Capital, owns Montana-Dakota, Cascade and Intermountain. The electric segment is comprised of Montana-Dakota while the natural gas distribution segment is comprised of Montana-Dakota, Cascade and Intermountain.
The Company, through its wholly owned subsidiary, Centennial, owns WBI Holdings,Energy, Knife River, MDU Construction Services and Centennial Capital. WBI HoldingsEnergy is the pipeline segment, Knife River is the construction materials and contracting segment, MDU Construction Services is the construction services segment and Centennial Capital is reflected in the Other category.
For more information on the Company's business segments, see Note 17 of the Notes to Consolidated Financial Statements.
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Part I -- Financial Information
Item 1. Financial Statements
MDU Resources Group, Inc.
Consolidated Statements of IncomeConsolidated Statements of IncomeConsolidated Statements of Income
(Unaudited)(Unaudited)(Unaudited)
Three Months EndedSix Months EndedThree Months EndedSix Months Ended
June 30, June 30,
2021202020212020 2022202120222021
(In thousands, except per share amounts) (In thousands, except per share amounts)
Operating revenues:Operating revenues: Operating revenues: 
Electric, natural gas distribution and regulated pipelineElectric, natural gas distribution and regulated pipeline$260,568 $241,353 $702,951 $660,035 Electric, natural gas distribution and regulated pipeline$323,457 $260,568 $876,913 $702,951 
Non-regulated pipeline, construction materials and contracting, construction services and otherNon-regulated pipeline, construction materials and contracting, construction services and other1,163,089 1,121,575 1,948,644 1,900,267 Non-regulated pipeline, construction materials and contracting, construction services and other1,397,464 1,163,089 2,260,567 1,948,644 
Total operating revenues Total operating revenues 1,423,657 1,362,928 2,651,595 2,560,302 Total operating revenues 1,720,921 1,423,657 3,137,480 2,651,595 
Operating expenses:Operating expenses: Operating expenses: 
Operation and maintenance:Operation and maintenance: Operation and maintenance: 
Electric, natural gas distribution and regulated pipelineElectric, natural gas distribution and regulated pipeline89,404 83,103 183,737 170,712 Electric, natural gas distribution and regulated pipeline94,261 89,404 191,928 183,737 
Non-regulated pipeline, construction materials and contracting, construction services and otherNon-regulated pipeline, construction materials and contracting, construction services and other988,392 946,068 1,705,717 1,679,459 Non-regulated pipeline, construction materials and contracting, construction services and other1,222,540 988,392 2,032,770 1,705,717 
Total operation and maintenanceTotal operation and maintenance1,077,796 1,029,171 1,889,454 1,850,171 Total operation and maintenance1,316,801 1,077,796 2,224,698 1,889,454 
Purchased natural gas soldPurchased natural gas sold63,213 56,844 239,450 222,256 Purchased natural gas sold115,312 63,213 382,665 239,450 
Depreciation, depletion and amortizationDepreciation, depletion and amortization73,661 71,508 147,384 140,747 Depreciation, depletion and amortization84,758 73,661 164,880 147,384 
Taxes, other than incomeTaxes, other than income53,189 52,584 115,724 116,696 Taxes, other than income61,551 53,189 129,035 115,724 
Electric fuel and purchased powerElectric fuel and purchased power18,109 14,567 36,730 35,107 Electric fuel and purchased power21,929 18,109 48,290 36,730 
Total operating expensesTotal operating expenses1,285,968 1,224,674 2,428,742 2,364,977 Total operating expenses1,600,351 1,285,968 2,949,568 2,428,742 
Operating incomeOperating income137,689 138,254 222,853 195,325 Operating income120,570 137,689 187,912 222,853 
Other income9,027 10,063 12,381 9,058 
Other income (expense)Other income (expense)(4,246)9,027 (6,646)12,381 
Interest expenseInterest expense23,381 24,818 46,835 49,371 Interest expense28,113 23,381 53,373 46,835 
Income before income taxesIncome before income taxes123,335 123,499 188,399 155,012 Income before income taxes88,211 123,335 127,893 188,399 
Income taxesIncome taxes23,164 23,657 36,112 29,631 Income taxes17,579 23,164 25,528 36,112 
Income from continuing operationsIncome from continuing operations100,171 99,842 152,287 125,381 Income from continuing operations70,632 100,171 102,365 152,287 
Income (loss) from discontinued operations, net of tax19 (139)34 (548)
Discontinued operations, net of taxDiscontinued operations, net of tax35 19 65 34 
Net incomeNet income$100,190 $99,703 $152,321 $124,833 Net income$70,667 $100,190 $102,430 $152,321 
Earnings per share - basic:Earnings per share - basic: Earnings per share - basic: 
Income from continuing operationsIncome from continuing operations$.50 $.50 $.76 $.62 Income from continuing operations$.35 $.50 $.50 $.76 
Discontinued operations, net of taxDiscontinued operations, net of taxDiscontinued operations, net of tax— — — — 
Earnings per share - basicEarnings per share - basic$.50 $.50 $.76 $.62 Earnings per share - basic$.35 $.50 $.50 $.76 
Earnings per share - diluted:Earnings per share - diluted: Earnings per share - diluted: 
Income from continuing operationsIncome from continuing operations$.50 $.50 $.76 $.62 Income from continuing operations$.35 $.50 $.50 $.76 
Discontinued operations, net of taxDiscontinued operations, net of taxDiscontinued operations, net of tax— — — — 
Earnings per share - dilutedEarnings per share - diluted$.50 $.50 $.76 $.62 Earnings per share - diluted$.35 $.50 $.50 $.76 
Weighted average common shares outstanding - basicWeighted average common shares outstanding - basic201,345 200,522 201,028 200,481 Weighted average common shares outstanding - basic203,351 201,345 203,351 201,028 
Weighted average common shares outstanding - dilutedWeighted average common shares outstanding - diluted201,693 200,539 201,328 200,497 Weighted average common shares outstanding - diluted203,401 201,693 203,396 201,328 
The accompanying notes are an integral part of these consolidated financial statements.
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MDU Resources Group, Inc.
Consolidated Statements of Comprehensive Income
(Unaudited)
Three Months EndedSix Months Ended
 June 30,June 30,
 2021202020212020
 (In thousands)
Net income$100,190 $99,703 $152,321 $124,833 
Other comprehensive income:
Reclassification adjustment for loss on derivative instruments included in net income, net of tax of $36 and $36 for the three months ended and $73 and $72 for the six months ended in 2021 and 2020, respectively112 112 223 223 
Amortization of postretirement liability losses included in net periodic benefit cost, net of tax of $160 and $155 for the three months ended and $311 and $304 for the six months ended in 2021 and 2020, respectively457 480 923 942 
Net unrealized gain (loss) on available-for-sale investments:
Net unrealized gain (loss) on available-for-sale investments arising during the period, net of tax of $(13) and $(4) for the three months ended and $(25) and $32 for the six months ended in 2021 and 2020, respectively(52)(13)(96)122 
Reclassification adjustment for loss on available-for-sale investments included in net income, net of tax of $6 and $2 for the three months ended and $15 and $2 for the six months ended in 2021 and 2020, respectively25 60 
Net unrealized gain (loss) on available-for-sale investments(27)(6)(36)128 
Other comprehensive income542 586 1,110 1,293 
Comprehensive income attributable to common stockholders$100,732 $100,289 $153,431 $126,126 
MDU Resources Group, Inc.
Consolidated Statements of Comprehensive Income
(Unaudited)
Three Months EndedSix Months Ended
 June 30,June 30,
 2022202120222021
 (In thousands)
Net income$70,667 $100,190 $102,430 $152,321 
Other comprehensive income (loss):
Reclassification adjustment for loss on derivative instruments included in net income, net of tax of $36 and $36 for the three months ended and $72 and $73 for the six months ended in 2022 and 2021, respectively111 112 223 223 
Postretirement liability adjustment:
Amortization of postretirement liability losses included in net periodic benefit credit, net of tax of $148 and $160 for the three months ended and $312 and $311 for the six months ended in 2022 and 2021, respectively461 457 906 923 
Reclassification of postretirement liability adjustment from regulatory asset, net of tax of $(1,086) and $— for the three months ended and $(1,086) and $— for the six months ended in 2022 and 2021, respectively(3,265)— (3,265)— 
Postretirement liability adjustment(2,804)457 (2,359)923 
Net unrealized loss on available-for-sale investments:
Net unrealized loss on available-for-sale investments arising during the period, net of tax of $(34) and $(13) for the three months ended and $(119) and $(25) for the six months ended in 2022 and 2021, respectively(128)(52)(448)(96)
Reclassification adjustment for loss on available-for-sale investments included in net income, net of tax of $7 and $6 for the three months ended and $15 and $15 for the six months ended in 2022 and 2021, respectively25 25 57 60 
Net unrealized loss on available-for-sale investments(103)(27)(391)(36)
Other comprehensive income (loss)(2,796)542 (2,527)1,110 
Comprehensive income attributable to common stockholders$67,871 $100,732 $99,903 $153,431 
The accompanying notes are an integral part of these consolidated financial statements.
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Index
MDU Resources Group, Inc.MDU Resources Group, Inc.MDU Resources Group, Inc.
Consolidated Balance SheetsConsolidated Balance SheetsConsolidated Balance Sheets
(Unaudited)(Unaudited)(Unaudited)
June 30, 2021June 30, 2020December 31, 2020 June 30, 2022June 30, 2021December 31, 2021
AssetsAssets(In thousands, except shares and per share amounts)Assets(In thousands, except shares and per share amounts)
Current assets:Current assets: Current assets: 
Cash and cash equivalentsCash and cash equivalents$57,946 $64,358 $59,547 Cash and cash equivalents$65,394 $57,946 $54,161 
Receivables, netReceivables, net903,831 920,824 873,986 Receivables, net1,184,116 903,831 946,741 
InventoriesInventories316,328 302,837 291,167 Inventories401,433 316,328 335,609 
Current regulatory assetsCurrent regulatory assets109,581 60,557 68,527 Current regulatory assets102,535 109,581 118,691 
Prepayments and other current assetsPrepayments and other current assets74,259 48,194 44,120 Prepayments and other current assets105,753 74,259 95,741 
Total current assetsTotal current assets1,461,945 1,396,770 1,337,347 Total current assets1,859,231 1,461,945 1,550,943 
Noncurrent assets:Noncurrent assets: Noncurrent assets: 
Property, plant and equipmentProperty, plant and equipment8,417,559 8,063,435 8,300,770 Property, plant and equipment9,099,752 8,417,559 8,972,849 
Less accumulated depreciation, depletion and amortizationLess accumulated depreciation, depletion and amortization3,129,717 3,064,833 3,133,831 Less accumulated depreciation, depletion and amortization3,210,940 3,129,717 3,216,461 
Net property, plant and equipmentNet property, plant and equipment5,287,842 4,998,602 5,166,939 Net property, plant and equipment5,888,812 5,287,842 5,756,388 
GoodwillGoodwill717,863 708,664 714,963 Goodwill763,262 717,863 765,386 
Other intangible assets, netOther intangible assets, net23,401 31,515 25,496 Other intangible assets, net20,040 23,401 22,578 
Regulatory assetsRegulatory assets376,913 351,025 379,381 Regulatory assets347,061 376,913 357,851 
InvestmentsInvestments173,157 154,779 165,022 Investments161,247 173,157 175,476 
Operating lease right-of-use assetsOperating lease right-of-use assets112,437 115,751 120,113 Operating lease right-of-use assets115,802 112,437 124,138 
OtherOther144,653 154,026 144,111 Other173,670 144,653 157,675 
Total noncurrent assets Total noncurrent assets 6,836,266 6,514,362 6,716,025 Total noncurrent assets 7,469,894 6,836,266 7,359,492 
Total assetsTotal assets$8,298,211 $7,911,132 $8,053,372 Total assets$9,329,125 $8,298,211 $8,910,435 
Liabilities and Stockholders' EquityLiabilities and Stockholders' Equity Liabilities and Stockholders' Equity 
Current liabilities:Current liabilities: Current liabilities: 
Short-term borrowingsShort-term borrowings$50,000 $75,000 $50,000 Short-term borrowings$100,000 $50,000 $— 
Long-term debt due within one yearLong-term debt due within one year1,549 16,560 1,555 Long-term debt due within one year214,453 1,549 148,053 
Accounts payableAccounts payable431,878 433,362 426,264 Accounts payable579,064 431,878 478,933 
Taxes payableTaxes payable78,805 80,882 88,844 Taxes payable84,970 78,805 80,372 
Dividends payableDividends payable42,791 41,608 42,611 Dividends payable44,229 42,791 44,229 
Accrued compensationAccrued compensation95,909 85,525 90,629 Accrued compensation98,159 95,909 81,904 
Operating lease liabilities due within one yearOperating lease liabilities due within one year33,626 31,787 35,368 
Regulatory liabilities due within one yearRegulatory liabilities due within one year23,454 48,000 31,450 Regulatory liabilities due within one year17,884 23,454 16,303 
Operating lease liabilities due within one year31,787 31,985 33,655 
Other accrued liabilitiesOther accrued liabilities188,187 186,797 198,514 Other accrued liabilities208,290 188,187 207,078 
Total current liabilities Total current liabilities 944,360 999,719 963,522 Total current liabilities 1,380,675 944,360 1,092,240 
Noncurrent liabilities:Noncurrent liabilities: Noncurrent liabilities: 
Long-term debtLong-term debt2,335,500 2,265,316 2,211,575 Long-term debt2,713,514 2,335,500 2,593,847 
Deferred income taxesDeferred income taxes538,633 516,760 516,098 Deferred income taxes597,733 538,633 591,962 
Asset retirement obligationsAsset retirement obligations450,620 422,169 440,356 Asset retirement obligations467,995 450,620 458,061 
Regulatory liabilitiesRegulatory liabilities428,467 438,652 428,075 Regulatory liabilities433,019 428,467 428,790 
Operating lease liabilitiesOperating lease liabilities81,052 84,302 86,868 Operating lease liabilities82,891 81,052 89,253 
OtherOther320,777 286,527 327,773 Other266,488 320,777 273,408 
Total noncurrent liabilities Total noncurrent liabilities 4,155,049 4,013,726 4,010,745 Total noncurrent liabilities 4,561,640 4,155,049 4,435,321 
Commitments and contingenciesCommitments and contingencies0Commitments and contingencies0
Stockholders' equity:
Stockholders' equity:
 
Stockholders' equity:
 
Common stock
Authorized - 500,000,000 shares, $1.00 par value
Shares issued - 202,822,301 at June 30, 2021, 201,061,198 at
June 30, 2020 and 201,061,198 at December 31, 2020
202,822 201,061 201,061 
Common stock
Authorized - 500,000,000 shares, $1.00 par value
Shares issued - 203,889,661 at June 30, 2022, 202,822,301 at
June 30, 2021 and 203,889,661 at December 31, 2021
Common stock
Authorized - 500,000,000 shares, $1.00 par value
Shares issued - 203,889,661 at June 30, 2022, 202,822,301 at
June 30, 2021 and 203,889,661 at December 31, 2021
203,889 202,822 203,889 
Other paid-in capitalOther paid-in capital1,422,169 1,363,182 1,371,385 Other paid-in capital1,454,131 1,422,169 1,461,205 
Retained earningsRetained earnings1,624,405 1,377,879 1,558,363 Retained earnings1,775,947 1,624,405 1,762,410 
Accumulated other comprehensive lossAccumulated other comprehensive loss(46,968)(40,809)(48,078)Accumulated other comprehensive loss(43,531)(46,968)(41,004)
Treasury stock at cost - 538,921 sharesTreasury stock at cost - 538,921 shares(3,626)(3,626)(3,626)Treasury stock at cost - 538,921 shares(3,626)(3,626)(3,626)
Total stockholders' equityTotal stockholders' equity3,198,802 2,897,687 3,079,105 Total stockholders' equity3,386,810 3,198,802 3,382,874 
Total liabilities and stockholders' equity Total liabilities and stockholders' equity $8,298,211 $7,911,132 $8,053,372 Total liabilities and stockholders' equity $9,329,125 $8,298,211 $8,910,435 
The accompanying notes are an integral part of these consolidated financial statements.
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Index
MDU Resources Group, Inc.MDU Resources Group, Inc.MDU Resources Group, Inc.
Consolidated Statements of EquityConsolidated Statements of EquityConsolidated Statements of Equity
(Unaudited)(Unaudited)(Unaudited)
Other
Paid-in
Capital
Retained EarningsAccumu-lated
Other
Compre-hensive
Loss
Other
Paid-in
Capital
Retained EarningsAccumu-lated
Other
Compre-hensive
Loss
Common StockTreasury StockCommon StockTreasury Stock
SharesAmountSharesAmountTotalSharesAmountSharesAmountTotal
(In thousands, except shares) (In thousands, except shares)
At December 31, 2020201,061,198 $201,061 $1,371,385 $1,558,363 $(48,078)(538,921)$(3,626)$3,079,105 
At December 31, 2021At December 31, 2021203,889,661 $203,889 $1,461,205 $1,762,410 $(41,004)(538,921)$(3,626)$3,382,874 
Net incomeNet income— — — 52,131 — — — 52,131 Net income— — — 31,763 — — — 31,763 
Other comprehensive incomeOther comprehensive income— — — — 568 — — 568 Other comprehensive income— — — — 269 — — 269 
Dividends declared on common stockDividends declared on common stock— — — (42,943)— — — (42,943)Dividends declared on common stock— — — (44,447)— — — (44,447)
Stock-based compensationStock-based compensation— — 2,574 — — — — 2,574 Stock-based compensation— — 2,689 — — — — 2,689 
Repurchase of common stockRepurchase of common stock— — — — — (392,294)(6,701)(6,701)Repurchase of common stock— — — — — (266,821)(7,399)(7,399)
Issuance of common stock upon vesting of stock-based compensation, net of shares used for tax withholdingsIssuance of common stock upon vesting of stock-based compensation, net of shares used for tax withholdings— — (10,828)— — 392,294 6,701 (4,127)Issuance of common stock upon vesting of stock-based compensation, net of shares used for tax withholdings— — (12,303)— — 266,821 7,399 (4,904)
Issuance of common stockIssuance of common stock672,260 672 19,027 — — — — 19,699 Issuance of common stock— — (127)— — — — (127)
At March 31, 2021201,733,458 $201,733 $1,382,158 $1,567,551 $(47,510)(538,921)$(3,626)$3,100,306 
At March 31, 2022At March 31, 2022203,889,661 $203,889 $1,451,464 $1,749,726 $(40,735)(538,921)$(3,626)$3,360,718 
Net incomeNet income— — — 100,190 — — — 100,190 Net income— — — 70,667 — — — 70,667 
Other comprehensive income— — — — 542 — — 542 
Other comprehensive lossOther comprehensive loss— — — — (2,796)— — (2,796)
Dividends declared on common stockDividends declared on common stock— — — (43,336)— — — (43,336)Dividends declared on common stock— — — (44,446)— — — (44,446)
Stock-based compensationStock-based compensation— — 6,150 — — — — 6,150 Stock-based compensation— — 2,689 — — — — 2,689 
Issuance of common stockIssuance of common stock1,088,843 1,089 33,861 — — — — 34,950 Issuance of common stock— — (22)— — — — (22)
At June 30, 2021202,822,301 $202,822 $1,422,169 $1,624,405 $(46,968)(538,921)$(3,626)$3,198,802 
At June 30, 2022At June 30, 2022203,889,661 $203,889 $1,454,131 $1,775,947 $(43,531)(538,921)$(3,626)$3,386,810 

Other
Paid-in
Capital
Retained EarningsAccumu-lated
Other
Compre-hensive
Loss
Other
Paid-in
Capital
Retained EarningsAccumu-lated
Other
Compre-hensive
Loss
Common StockTreasury StockCommon StockAccumu-lated
Other
Compre-hensive
Loss
Treasury Stock
SharesAmountSharesAmountTotalAccumu-lated
Other
Compre-hensive
Loss
SharesAmountTotal
(In thousands, except shares) (In thousands, except shares)
At December 31, 2019200,922,790 $200,923 $1,355,404 $1,336,647 $(42,102)(538,921)$(3,626)$2,847,246 
At December 31, 2020At December 31, 2020201,061,198 $201,061 $1,371,385 $1,558,363 $(48,078)(538,921)$(3,626)$3,079,105 
Net incomeNet income— — — 25,130 — — — 25,130 Net income— — — 52,131 — — — 52,131 
Other comprehensive incomeOther comprehensive income— — — — 707 — — 707 Other comprehensive income— — — — 568 — — 568 
Dividends declared on common stockDividends declared on common stock— — — (41,789)— — — (41,789)Dividends declared on common stock— — — (42,943)— — — (42,943)
Stock-based compensationStock-based compensation— — 2,250 — — — — 2,250 Stock-based compensation— — 2,574 — — — — 2,574 
Repurchase of common stockRepurchase of common stock— — — — — (392,294)(6,701)(6,701)
Issuance of common stock upon vesting of stock-based compensation, net of shares used for tax withholdingsIssuance of common stock upon vesting of stock-based compensation, net of shares used for tax withholdings26,406 26 (388)— — — — (362)Issuance of common stock upon vesting of stock-based compensation, net of shares used for tax withholdings— — (10,828)— — 392,294 6,701 (4,127)
Issuance of common stockIssuance of common stock112,002 112 3,298 — — — — 3,410 Issuance of common stock672,260 672 19,027 — — — — 19,699 
At March 31, 2020201,061,198 $201,061 $1,360,564 $1,319,988 $(41,395)(538,921)$(3,626)$2,836,592 
At March 31, 2021At March 31, 2021201,733,458 $201,733 $1,382,158 $1,567,551 $(47,510)(538,921)$(3,626)$3,100,306 
Net incomeNet income— — — 99,703 — — — 99,703 Net income— — — 100,190 — — — 100,190 
Other comprehensive incomeOther comprehensive income— — — — 586 — — 586 Other comprehensive income— — — — 542 — — 542 
Dividends declared on common stockDividends declared on common stock— — — (41,812)— — — (41,812)Dividends declared on common stock— — — (43,336)— — — (43,336)
Stock-based compensationStock-based compensation— — 2,618 — — — — 2,618 Stock-based compensation— — 6,150 — — — — 6,150 
At June 30, 2020201,061,198 $201,061 $1,363,182 $1,377,879 $(40,809)(538,921)$(3,626)$2,897,687 
Issuance of common stockIssuance of common stock1,088,843 1,089 33,861 — — — — 34,950 
At June 30, 2021At June 30, 2021202,822,301 $202,822 $1,422,169 $1,624,405 $(46,968)(538,921)$(3,626)$3,198,802 
The accompanying notes are an integral part of these consolidated financial statements.
9

Index
MDU Resources Group, Inc.MDU Resources Group, Inc.MDU Resources Group, Inc.
Consolidated Statements of Cash FlowsConsolidated Statements of Cash FlowsConsolidated Statements of Cash Flows
(Unaudited)(Unaudited)(Unaudited)
Six Months EndedSix Months Ended
June 30, June 30,
20212020 20222021
(In thousands) (In thousands)
Operating activities:Operating activities: Operating activities: 
Net incomeNet income$152,321 $124,833 Net income$102,430 $152,321 
Income (loss) from discontinued operations, net of tax34 (548)
Discontinued operations, net of taxDiscontinued operations, net of tax65 34 
Income from continuing operationsIncome from continuing operations152,287 125,381 Income from continuing operations102,365 152,287 
Adjustments to reconcile net income to net cash provided by operating activities:Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to reconcile net income to net cash provided by operating activities: 
Depreciation, depletion and amortizationDepreciation, depletion and amortization147,384 140,747 Depreciation, depletion and amortization164,880 147,384 
Deferred income taxesDeferred income taxes14,498 2,881 Deferred income taxes1,464 14,498 
Provision for credit lossesProvision for credit losses2,244 (1,158)
Amortization of debt issuance costsAmortization of debt issuance costs709 633 
Employee stock-based compensation costsEmployee stock-based compensation costs5,378 8,724 
Pension and postretirement benefit plan net periodic benefit creditPension and postretirement benefit plan net periodic benefit credit(3,004)(2,457)
Unrealized (gains) losses on investmentsUnrealized (gains) losses on investments13,210 (3,795)
Gains on sales of assetsGains on sales of assets(5,434)(8,021)
Changes in current assets and liabilities, net of acquisitions:Changes in current assets and liabilities, net of acquisitions: Changes in current assets and liabilities, net of acquisitions: 
ReceivablesReceivables(18,516)(40,801)Receivables(242,252)(17,358)
InventoriesInventories(25,330)(26,276)Inventories(63,840)(25,330)
Other current assetsOther current assets(52,768)30,790 Other current assets12,888 (52,768)
Accounts payableAccounts payable(3,845)13,387 Accounts payable104,451 (3,845)
Other current liabilitiesOther current liabilities(22,605)26,612 Other current liabilities29,178 (22,605)
Pension and postretirement benefit plan contributionsPension and postretirement benefit plan contributions(262)(225)
Other noncurrent changesOther noncurrent changes(8,236)(10,923)Other noncurrent changes(4,509)(3,095)
Net cash provided by continuing operationsNet cash provided by continuing operations182,869 261,798 Net cash provided by continuing operations117,466 182,869 
Net cash used in discontinued operationsNet cash used in discontinued operations(58)(396)Net cash used in discontinued operations(16)(58)
Net cash provided by operating activitiesNet cash provided by operating activities182,811 261,402 Net cash provided by operating activities117,450 182,811 
Investing activities:Investing activities: Investing activities: 
Capital expendituresCapital expenditures(261,937)(248,800)Capital expenditures(290,145)(261,937)
Acquisitions, net of cash acquiredAcquisitions, net of cash acquired(13,721)(70,729)Acquisitions, net of cash acquired(524)(13,721)
Net proceeds from sale or disposition of property and otherNet proceeds from sale or disposition of property and other12,402 22,968 Net proceeds from sale or disposition of property and other4,324 12,402 
InvestmentsInvestments(3,244)23 Investments(4,680)(3,244)
Net cash used in investing activitiesNet cash used in investing activities(266,500)(296,538)Net cash used in investing activities(291,025)(266,500)
Financing activities:Financing activities: Financing activities: 
Issuance of short-term borrowingsIssuance of short-term borrowings50,000 75,000 Issuance of short-term borrowings100,000 50,000 
Repayment of short-term borrowingsRepayment of short-term borrowings(50,000)Repayment of short-term borrowings— (50,000)
Issuance of long-term debtIssuance of long-term debt171,769 200,400 Issuance of long-term debt334,329 171,774 
Repayment of long-term debtRepayment of long-term debt(48,151)(162,225)Repayment of long-term debt(147,544)(48,151)
Proceeds from issuance of common stock54,649 3,410 
Debt issuance costsDebt issuance costs(1,068)(5)
Net proceeds from issuance of common stockNet proceeds from issuance of common stock(149)54,649 
Dividends paidDividends paid(85,351)(83,188)Dividends paid(88,457)(85,351)
Repurchase of common stockRepurchase of common stock(6,701)Repurchase of common stock(7,399)(6,701)
Tax withholding on stock-based compensationTax withholding on stock-based compensation(4,127)(362)Tax withholding on stock-based compensation(4,904)(4,127)
Net cash provided by financing activitiesNet cash provided by financing activities82,088 33,035 Net cash provided by financing activities184,808 82,088 
Decrease in cash and cash equivalents(1,601)(2,101)
Increase (decrease) in cash and cash equivalentsIncrease (decrease) in cash and cash equivalents11,233 (1,601)
Cash and cash equivalents -- beginning of yearCash and cash equivalents -- beginning of year59,547 66,459 Cash and cash equivalents -- beginning of year54,161 59,547 
Cash and cash equivalents -- end of periodCash and cash equivalents -- end of period$57,946 $64,358 Cash and cash equivalents -- end of period$65,394 $57,946 
The accompanying notes are an integral part of these consolidated financial statements.
10

Index
MDU Resources Group, Inc.
Notes to Consolidated
Financial Statements
June 30, 20212022 and 20202021
(Unaudited)
Note 1 - Basis of presentation
The accompanying consolidated interim financial statements were prepared in accordance with GAAP for interim financial information and with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X. Interim financial statements do not include all disclosures provided in annual financial statements and, accordingly, these financial statements should be read in conjunction with those appearing in the 20202021 Annual Report. The information is unaudited but includes all adjustments that are, in the opinion of management, necessary for a fair presentation of the accompanying consolidated interim financial statements and are of a normal recurring nature. Depreciation, depletion and amortization expense is reported separately on the Consolidated Statements of Income and therefore is excluded from the other line items within operating expenses.
Beginning in March 2020, governmental restrictions and guidelines implementedOn August 4, 2022, the Company announced its Board of Directors unanimously approved a plan to controlpursue the spreadseparation of COVID-19 reduced commercial and interpersonal activity throughoutKnife River from the Company's areas of operation. Most of the Company's products and services are considered essential to our country and our communities and,Company. The separation is planned as a result, operations have generally continued throughouttax-free spinoff transaction to the COVID-19 pandemic and reopening of the country's economy. The Company has assessed the impacts of the COVID-19 pandemic on its results of operationsCompany’s stockholders for the six months ended June 30, 2021 and 2020, and determined there were no material adverse impacts.U.S. federal income tax purposes.
The assets and liabilities of the Company's discontinued operations have been classified as held for sale and are included in prepayments and other current assets, noncurrent assets - other and other accrued liabilities on the Consolidated Balance Sheets. The results and supporting activities are shown in income (loss) from discontinued operations on the Consolidated Statements of Income. Unless otherwise indicated, the amounts presented in the accompanying notes to the consolidated financial statements relate to the Company's continuing operations.
In the fourth quarter of 2021, the Company made changes to the presentation of the Consolidated Statements of Cash Flows to provide further clarity on the sources and uses of net cash provided by operating activities and net cash provided by (used in) financing activities. Certain prior period amounts have been reclassified to conform to the current year presentation. These reclassifications did not impact total net cash provided by operating activities or net cash provided by financing activities for the six months ended June 30, 2021.
Management has also evaluated the impact of events occurring after June 30, 2021,2022, up to the date of the issuance of these consolidated interim financial statements on August 5, 2021,2022, that would require recognition or disclosure in the financial statements.Consolidated Financial Statements.
Note 2 - New accounting standards
Recently adoptedThe following table provides a brief description of the accounting standards
ASU 2018-14 - Changespronouncements applicable to the Disclosure Requirements for Defined Benefit Plans In August 2018, the FASB issued guidance on modifying the disclosure requirements for employers that sponsor defined benefit pension or other postretirement plans as part of the disclosure framework project. The guidance removed disclosures that are no longer considered cost beneficial, clarified the specific requirements of disclosures and added disclosure requirements identified as relevant. The guidance added, among other things, the requirement to include an explanation for significant gains and losses related to changes in benefit obligations for the period. The guidance removed, among other things, the disclosure requirement to disclose the amount of net periodic benefit costs to be amortized over the next fiscal year from accumulated other comprehensive income (loss)Company and the effect a one percentage point change in assumed health care cost trend rates would have on certain benefit components. The Company adopted the guidance on January 1, 2021, on a retrospective basis. The Company determined the new guidance will not materially impact its consolidated financial statement disclosures.
ASU 2019-12 - Simplifying the Accounting for Income Taxes In December 2019, the FASB issued guidance on simplifying the accounting for income taxes by removing certain exceptions in ASC 740 and providing simplification amendments. The guidance removed exceptions on intraperiod tax allocations and reporting and provided simplification on accounting for franchise taxes, tax basis goodwill and tax law changes. The Company adopted the guidance on January 1, 2021, and determined it did not have a materialpotential impact on its results of operations, financial position, cash flows Consolidated Financial Statements and/or disclosures.disclosures:
Recently issued accounting standards not yet adopted
ASU 2020-04 - Reference Rate Reform In March 2020, the FASB issued optional guidance to ease the facilitation of the effects of reference rate reform on financial reporting. The guidance applied to certain contract modifications, hedging relationships and other transactions that reference LIBOR or another reference rate expected to be discontinued because of reference rate reform. LIBOR is expected to be retired with a full phase-out by the end of 2021 and replaced by a new reference rate, which includes SOFR. The guidance can be applied beginning in the interim period that includes March 12, 2020,
StandardDescriptionEffective dateImpact on financial statements/disclosures
ASU 2021-10 - Government AssistanceIn November 2021, the FASB issued guidance on modifying the disclosure requirements to increase the transparency of government assistance including disclosure of the types of assistance, an entity's accounting for the assistance and the effect of the assistance on an entity's financial statements.January 1, 2022The Company is currently evaluating the impact the guidance will have on its disclosures for the year ended December 31, 2022.
ASU 2020-04 - Reference Rate ReformIn March 2020, the FASB issued optional guidance to ease the facilitation of the effects of reference rate reform on financial reporting. The guidance applies to certain contract modifications, hedging relationships and other transactions that reference LIBOR or another reference rate expected to be discontinued because of reference rate reform. Beginning January 1, 2022, LIBOR or other discontinued reference rates cannot be applied to new contracts. New contracts will incorporate a new reference rate, which includes SOFR. LIBOR or other discontinued reference rates cannot be applied to contract modifications or hedging relationships entered into or evaluated after December 31, 2022. Existing contracts referencing LIBOR or other reference rates expected to be discontinued must identify a replacement rate by June 30, 2023.Effective as of March 12, 2020 and will continue through December 31, 2022The Company has updated its credit agreements to include language regarding the successor or alternate rate to LIBOR, and a review of other contracts and agreements is on-going. The Company does not expect the guidance to have a material impact on its results of operations, financial position, cash flows or disclosures.
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Index
Note 3 - Seasonality of operations
Some of the Company's operations are highly seasonal and revenues from, and certain expenses for, such operations may fluctuate significantly among quarterly periods. Accordingly, the interim results for particular businesses, and for the Company as a whole, may not be indicative of results for the full fiscal year.
Note 4 - Receivables and allowance for expected credit losses
Receivables consists primarily of trade receivables from the sale of goods and services, which are recorded at the invoiced amount, and contract assets, net of expected credit losses. For more information on contract assets, see Note 9. The Company's trade receivables are all due in 12 months or less. The total balance of receivables past due 90 days or more was $37.0 million, $34.2 million $45.1 million and $43.9$44.8 million at June 30, 20212022 and 2020,2021, and December 31, 2020,2021, respectively.
The Company's expected credit losses are determined through a review using historical credit loss experience; changes in asset specific characteristics; current conditions; and reasonable and supportable future forecasts, among other specific account data, and is performed at least quarterly. The Company develops and documents its methodology to determine its allowance for expected credit losses at each of its reportable business segments. Risk characteristics used by the business segments may include customer mix, knowledge of customers and general economic conditions of the various local economies, and impacts of COVID-19, among others. Specific account balances are written off when management determines the amounts to be uncollectible. Management has reviewed the balance reserved through the allowance for expected credit losses and believes it is reasonable.
Details of the Company's expected credit losses were as follows:
ElectricNatural gas
distribution
PipelineConstruction
materials and
contracting
Construction
services
TotalElectricNatural gas
distribution
PipelineConstruction
materials and
contracting
Construction
services
Total
(In thousands) (In thousands)
At December 31, 2020$899 $2,571 $$6,164 $5,722 $15,358 
At December 31, 2021At December 31, 2021$269 $1,506 $$5,406 $2,533 $9,716 
Current expected credit loss provisionCurrent expected credit loss provision538 1,273 (1,049)(1,079)(317)Current expected credit loss provision565 1,369 — (253)54 1,735 
Less write-offs charged against the allowanceLess write-offs charged against the allowance888 1,107 273 401 2,669 Less write-offs charged against the allowance597 932 — 27 71 1,627 
Credit loss recoveries collectedCredit loss recoveries collected129 213 342 Credit loss recoveries collected124 180 — — 28 332 
At March 31, 2021$678 $2,950 $$4,842 $4,242 $12,714 
At March 31, 2022At March 31, 2022$361 $2,123 $$5,126 $2,544 $10,156 
Current expected credit loss provisionCurrent expected credit loss provision(110)(103)11 (639)(841)Current expected credit loss provision113 92 — 12 292 509 
Less write-offs charged against the allowanceLess write-offs charged against the allowance341 787 232 64 1,424 Less write-offs charged against the allowance234 939 — 108 104 1,385 
Credit loss recoveries collectedCredit loss recoveries collected100 199 299 Credit loss recoveries collected108 177 — — — 285 
At June 30, 2021$327 $2,259 $$4,621 $3,539 $10,748 
At June 30, 2022At June 30, 2022$348 $1,453 $$5,030 $2,732 $9,565 
ElectricNatural gas
distribution
PipelineConstruction
materials and
contracting
Construction
services
TotalElectricNatural gas
distribution
PipelineConstruction
materials and
contracting
Construction
services
Total
(In thousands) (In thousands)
At January 1, 2020$328 $1,056 $$5,357 $1,756 $8,497 
At December 31, 2020At December 31, 2020$899 $2,571 $$6,164 $5,722 $15,358 
Current expected credit loss provisionCurrent expected credit loss provision555 1,156 694 1,150 3,555 Current expected credit loss provision538 1,273 — (1,049)(1,079)(317)
Less write-offs charged against the allowanceLess write-offs charged against the allowance500 624 68 73 1,265 Less write-offs charged against the allowance888 1,107 — 273 401 2,669 
Credit loss recoveries collectedCredit loss recoveries collected109 229 338 Credit loss recoveries collected129 213 — — — 342 
At March 31, 2020$492 $1,817 $$5,983 $2,833 $11,125 
At March 31, 2021At March 31, 2021$678 $2,950 $$4,842 $4,242 $12,714 
Current expected credit loss provisionCurrent expected credit loss provision303 190 (314)896 1,075 Current expected credit loss provision(110)(103)— 11 (639)(841)
Less write-offs charged against the allowanceLess write-offs charged against the allowance224 677 44 454 1,399 Less write-offs charged against the allowance341 787 — 232 64 1,424 
Credit loss recoveries collectedCredit loss recoveries collected88 201 289 Credit loss recoveries collected100 199 — — — 299 
At June 30, 2020$659 $1,531 $$5,625 $3,275 $11,090 
At June 30, 2021At June 30, 2021$327 $2,259 $$4,621 $3,539 $10,748 
12

Index
Note 5 - Inventories and natural gas in storage
Natural gas in storage for the Company's regulated operations is generally valued at lower of cost or market using the last-in, first-out method or lower of cost or net realizable value using the average cost or first-in, first-out method. The majority of all other inventories are valued at the lower of cost or net realizable value using the average cost method. The portion of the cost of natural gas in storage expected to be used within 12 months was included in inventories. Inventories on the Consolidated Balance Sheets were as follows:
June 30, 2021June 30, 2020December 31, 2020 June 30, 2022June 30, 2021December 31, 2021
(In thousands) (In thousands)
Aggregates held for resaleAggregates held for resale$183,977 $165,357 $175,782 Aggregates held for resale$200,569 $183,977 $184,363 
Asphalt oilAsphalt oil51,500 57,207 28,238 Asphalt oil92,905 51,500 57,002 
Materials and suppliesMaterials and supplies27,969 27,805 25,142 Materials and supplies40,405 27,969 30,629 
Merchandise for resaleMerchandise for resale26,871 22,974 21,087 Merchandise for resale38,293 26,871 28,501 
Natural gas in storage (current)Natural gas in storage (current)10,824 11,776 21,919 Natural gas in storage (current)15,014 10,824 18,867 
OtherOther15,187 17,718 18,999 Other14,247 15,187 16,247 
TotalTotal$316,328 $302,837 $291,167 Total$401,433 $316,328 $335,609 
The remainder of natural gas in storage, which largely represents the cost of gas required to maintain pressure levels for normal operating purposes, was included in noncurrent assets - other and was $47.2 million at June 30, 2022 and $47.5 million at June 30, 2021 and December 31, 2020, and $48.3 million at June 30, 2020.2021.
Note 6 - Earnings per share
Basic earnings per share is computed by dividing net income by the weighted average number of shares of common stock outstanding during the applicable period. Diluted earnings per share is computed by dividing net income by the total of the weighted average number of shares of common stock outstanding during the applicable period, plus the effect of non-vested performance share awards and restricted stock units. Common stock outstanding includes issued shares less shares held in treasury. Net income was the same for both the basic and diluted earnings per share calculations. A reconciliation of the weighted average common shares outstanding used in the basic and diluted earnings per share calculations follows:
Three Months EndedSix Months EndedThree Months EndedSix Months Ended
June 30,June 30,
20212020202120202022202120222021
(In thousands, except per share amounts)(In thousands, except per share amounts)
Weighted average common shares outstanding - basicWeighted average common shares outstanding - basic201,345 200,522 201,028 200,481 Weighted average common shares outstanding - basic203,351 201,345 203,351 201,028 
Effect of dilutive performance share awards and restricted stock unitsEffect of dilutive performance share awards and restricted stock units348 17 300 16 Effect of dilutive performance share awards and restricted stock units50 348 45 300 
Weighted average common shares outstanding - dilutedWeighted average common shares outstanding - diluted201,693 200,539 201,328 200,497 Weighted average common shares outstanding - diluted203,401 201,693 203,396 201,328 
Shares excluded from the calculation of diluted earnings per shareShares excluded from the calculation of diluted earnings per share187 191 Shares excluded from the calculation of diluted earnings per share52 — 175 — 
Dividends declared per common shareDividends declared per common share$.2125 $.2075 $.4250 $.4150 Dividends declared per common share$.2175 $.2125 $.4350 $.4250 
Note 7 - Equity
The Company currently has a shelf registration statement on file with the SEC, under which the Company may issue and sell any combination of common stock and debt securities. The Company may sell such securities if warranted by market conditions and the Company's capital requirements.
In August 2020, the Company amended the Distribution Agreement dated February 22, 2019, with J.P. Morgan Securities LLC and MUFG Securities Americas Inc., as sales agents. This agreement, as amended, allows the offering, issuance and sale of up to 6.4 million shares of the Company's common stock in connection with an "at-the-market" offering. The common stock may be offered for sale, from time to time, in accordance with the terms and conditions of this agreement. As of June 30, 2021,2022, the Company had capacity to issue up to 4.63.6 million additional shares of common stock under the "at-the-market" offering program.
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Index
Details of the Company's "at-the-market" offering activity was as follows:
Three Months EndedSix Months EndedThree Months EndedSix Months Ended
June 30,June 30,June 30,
20212020202120202022202120222021
(In millions)(In millions)
Shares issuedShares issued1.1 1.8 Shares issued— 1.1 — 1.8 
Net proceeds *Net proceeds *$34.9 $$54.6 $Net proceeds *$— $34.9 **$(.1)$54.6 **
Issuance costs$.4 $$.7 $
*    Net proceeds include issuance costs of $22,000 and $149,000 for the three and six months ended June 30, 2022, respectively, and $443,000 and $743,000 for the three and six months ended June 30, 2021, respectively.
**    Net proceeds were used for capital expenditures.
Note 8 - Accumulated other comprehensive loss
The after-tax changes in the components of accumulated other comprehensive loss were as follows:
Net Unrealized
Gain (Loss) on
Derivative
 Instruments
 Qualifying as
Hedges
Postretirement
 Liability
Adjustment
Net Unrealized
Gain (Loss) on
Available-for-sale
Investments
Total
Accumulated
 Other
Comprehensive
 Loss
Net Unrealized
Gain (Loss) on
Derivative
 Instruments
 Qualifying as
Hedges
Postretirement
 Liability
Adjustment
Net Unrealized
Gain (Loss) on
Available-for-sale
Investments
Total
Accumulated
 Other
Comprehensive
 Loss
(In thousands) (In thousands)
At December 31, 2020$(984)$(47,207)$113 $(48,078)
At December 31, 2021At December 31, 2021$(538)$(40,461)$(5)$(41,004)
Other comprehensive loss before reclassificationsOther comprehensive loss before reclassifications(44)(44)Other comprehensive loss before reclassifications— — (320)(320)
Amounts reclassified from accumulated other comprehensive lossAmounts reclassified from accumulated other comprehensive loss111 466 35 612 Amounts reclassified from accumulated other comprehensive loss112 445 32 589 
Net current-period other comprehensive income (loss)Net current-period other comprehensive income (loss)111 466 (9)568 Net current-period other comprehensive income (loss)112 445 (288)269 
At March 31, 2021$(873)$(46,741)$104 $(47,510)
At March 31, 2022At March 31, 2022$(426)$(40,016)$(293)$(40,735)
Other comprehensive loss before reclassificationsOther comprehensive loss before reclassifications(52)(52)Other comprehensive loss before reclassifications— — (128)(128)
Amounts reclassified to accumulated other comprehensive loss from a regulatory assetAmounts reclassified to accumulated other comprehensive loss from a regulatory asset— (3,265)— (3,265)
Amounts reclassified from accumulated other comprehensive lossAmounts reclassified from accumulated other comprehensive loss112 457 25 594 Amounts reclassified from accumulated other comprehensive loss111 461 25 597 
Net current-period other comprehensive income (loss)Net current-period other comprehensive income (loss)112 457 (27)542 Net current-period other comprehensive income (loss)111 (2,804)(103)(2,796)
At June 30, 2021$(761)$(46,284)$77 $(46,968)
At June 30, 2022At June 30, 2022$(315)$(42,820)$(396)$(43,531)
Net Unrealized
Gain (Loss) on
Derivative
 Instruments
 Qualifying as
Hedges
Postretirement
 Liability
Adjustment
Net Unrealized
Gain (Loss) on
Available-for-sale
Investments
Total
Accumulated
 Other
Comprehensive
 Loss
 (In thousands)
At December 31, 2019$(1,430)$(40,734)$62 $(42,102)
Other comprehensive income before reclassifications135 135 
Amounts reclassified from (to) accumulated other comprehensive loss111 462 (1)572 
Net current-period other comprehensive income111 462 134 707 
At March 31, 2020$(1,319)$(40,272)$196 $(41,395)
Other comprehensive loss before reclassifications(13)(13)
Amounts reclassified from accumulated other comprehensive loss112 480 599 
Net current-period other comprehensive income (loss)112 480 (6)586 
At June 30, 2020$(1,207)$(39,792)$190 $(40,809)
Net Unrealized
Gain (Loss) on
Derivative
 Instruments
 Qualifying as
Hedges
Postretirement
 Liability
Adjustment
Net Unrealized
Gain (Loss) on
Available-for-sale
Investments
Total
Accumulated
 Other
Comprehensive
 Loss
 (In thousands)
At December 31, 2020$(984)$(47,207)$113 $(48,078)
Other comprehensive loss before reclassifications— — (44)(44)
Amounts reclassified from accumulated other comprehensive loss111 466 35 612 
Net current-period other comprehensive income (loss)111 466 (9)568 
At March 31, 2021$(873)$(46,741)$104 $(47,510)
Other comprehensive loss before reclassifications— — (52)(52)
Amounts reclassified from accumulated other comprehensive loss112 457 25 594 
Net current-period other comprehensive income (loss)112 457 (27)542 
At June 30, 2021$(761)$(46,284)$77 $(46,968)
14

Index
The following amounts were reclassified out of accumulated other comprehensive loss into net income. The amounts presented in parenthesis indicate a decrease to net income on the Consolidated Statements of Income. The reclassifications were as follows:
Three Months EndedSix Months EndedLocation on Consolidated
Statements of
Income
Three Months EndedSix Months EndedLocation on Consolidated
Statements of
Income
June 30,June 30,
20212020202120202022202120222021
(In thousands)(In thousands)
Reclassification adjustment for loss on derivative instruments included in net incomeReclassification adjustment for loss on derivative instruments included in net income$(148)$(148)$(296)$(295)Interest expenseReclassification adjustment for loss on derivative instruments included in net income$(147)$(148)$(295)$(296)Interest expense
36 36 73 72 Income taxes36 36 72 73 Income taxes
(112)(112)(223)(223)(111)(112)(223)(223)
Amortization of postretirement liability losses included in net periodic benefit cost(617)(635)(1,234)(1,246)Other income
Amortization of postretirement liability losses included in net periodic benefit creditAmortization of postretirement liability losses included in net periodic benefit credit(609)(617)(1,218)(1,234)Other income
160 155 311 304 Income taxes148 160 312 311 Income taxes
(457)(480)(923)(942)(461)(457)(906)(923)
Reclassification adjustment on available-for-sale investments included in net incomeReclassification adjustment on available-for-sale investments included in net income(31)(9)(75)(8)Other incomeReclassification adjustment on available-for-sale investments included in net income(32)(31)(72)(75)Other income
15 Income taxes15 15 Income taxes
(25)(7)(60)(6)(25)(25)(57)(60)
Total reclassificationsTotal reclassifications$(594)$(599)$(1,206)$(1,171)Total reclassifications$(597)$(594)$(1,186)$(1,206)
Note 9 - Revenue from contracts with customers
Revenue is recognized when a performance obligation is satisfied by transferring control over a product or service to a customer. Revenue is measured based on consideration specified in a contract with a customer and excludes any sales incentives and amounts collected on behalf of third parties. The Company is considered an agent for certain taxes collected from customers. As such, the Company presents revenues net of these taxes at the time of sale to be remitted to governmental authorities, including sales and use taxes.
Disaggregation
In the following tables, revenue is disaggregated by the type of customer or service provided. The Company believes this level of disaggregation best depicts how the nature, amount, timing and uncertainty of revenue and cash flows are affected by economic factors. The table also includes a reconciliation of the disaggregated revenue by reportable segments. For more information on the Company's business segments, see Note 17.
Three Months Ended June 30, 2021ElectricNatural gas
distribution
PipelineConstruction
materials and
contracting
Construction
services
OtherTotal
Three Months Ended June 30, 2022Three Months Ended June 30, 2022ElectricNatural gas
distribution
PipelineConstruction
materials and
contracting
Construction
services
OtherTotal
(In thousands)(In thousands)
Residential utility salesResidential utility sales$29,258 $83,480 $— $— $— $— $112,738 Residential utility sales$29,363 $116,749 $— $— $— $— $146,112 
Commercial utility salesCommercial utility sales33,834 47,612 — — — — 81,446 Commercial utility sales34,015 72,354 — — — — 106,369 
Industrial utility salesIndustrial utility sales10,354 6,180 — — — — 16,534 Industrial utility sales10,923 9,009 — — — — 19,932 
Other utility salesOther utility sales1,825 — — — — 1,825 Other utility sales1,880 — — — — — 1,880 
Natural gas transportationNatural gas transportation— 11,451 27,685 — — — 39,136 Natural gas transportation— 11,456 31,967 — — — 43,423 
Natural gas storageNatural gas storage— — 3,094 — — — 3,094 Natural gas storage— — 2,896 — — — 2,896 
Contracting servicesContracting services— — — 280,834 — — 280,834 Contracting services— — — 330,682 — — 330,682 
Construction materialsConstruction materials— — — 498,762 — — 498,762 Construction materials— — — 550,363 — — 550,363 
Intrasegment eliminationsIntrasegment eliminations— — — (145,780)— — (145,780)Intrasegment eliminations— — — (169,232)— — (169,232)
Inside specialty contracting— — — — 347,702 — 347,702 
Outside specialty contracting— — — — 165,123 — 165,123 
Electrical & mechanical specialty contractingElectrical & mechanical specialty contracting— — — — 507,233 — 507,233 
Transmission & distribution specialty contractingTransmission & distribution specialty contracting— — — — 166,174 — 166,174 
OtherOther9,465 2,794 4,810 57 3,389 20,515 Other10,216 3,751 2,676 — 109 4,389 21,141 
Intersegment eliminationsIntersegment eliminations(136)(142)(7,862)(142)(797)(3,361)(12,440)Intersegment eliminations(124)(141)(7,792)(200)(1,803)(4,389)(14,449)
Revenues from contracts with customersRevenues from contracts with customers84,600 151,375 27,727 633,674 512,085 28 1,409,489 Revenues from contracts with customers86,273 213,178 29,747 711,613 671,713 — 1,712,524 
Revenues out of scopeRevenues out of scope(950)2,413 46 12,659 14,168 Revenues out of scope(812)(2,738)66 — 11,881 — 8,397 
Total external operating revenuesTotal external operating revenues$83,650 $153,788 $27,773 $633,674 $524,744 $28 $1,423,657 Total external operating revenues$85,461 $210,440 $29,813 $711,613 $683,594 $— $1,720,921 
15

Index
Three Months Ended June 30, 2020ElectricNatural gas
distribution
PipelineConstruction
materials and
contracting
Construction
services
OtherTotal
Three Months Ended June 30, 2021Three Months Ended June 30, 2021ElectricNatural gas
distribution
PipelineConstruction
materials and
contracting
Construction
services
OtherTotal
(In thousands)(In thousands)
Residential utility salesResidential utility sales$27,954 $78,653 $— $— $— $— $106,607 Residential utility sales$29,258 $83,480 $— $— $— $— $112,738 
Commercial utility salesCommercial utility sales29,877 41,027 — — — — 70,904 Commercial utility sales33,834 47,612 — — — — 81,446 
Industrial utility salesIndustrial utility sales8,072 5,658 — — — — 13,730 Industrial utility sales10,354 6,180 — — — — 16,534 
Other utility salesOther utility sales1,591 — — — — 1,591 Other utility sales1,825 — — — — — 1,825 
Natural gas transportationNatural gas transportation— 10,350 27,965 — — — 38,315 Natural gas transportation— 11,451 27,685 — — — 39,136 
Natural gas gathering— — 1,181 — — — 1,181 
Natural gas storageNatural gas storage— — 3,104 — — — 3,104 Natural gas storage— — 3,094 — — — 3,094 
Contracting servicesContracting services— — — 303,356 — — 303,356 Contracting services— — — 280,834 — — 280,834 
Construction materialsConstruction materials— — — 482,498 — — 482,498 Construction materials— — — 498,762 — — 498,762 
Intrasegment eliminationsIntrasegment eliminations— — — (164,719)— — (164,719)Intrasegment eliminations— — — (145,780)— — (145,780)
Inside specialty contracting— — — — 324,921 — 324,921 
Outside specialty contracting— — — — 160,696 — 160,696 
Electrical & mechanical specialty contractingElectrical & mechanical specialty contracting— — — — 347,702 — 347,702 
Transmission & distribution specialty contractingTransmission & distribution specialty contracting— — — — 165,123 — 165,123 
OtherOther7,717 2,711 3,363 412 2,861 17,064 Other9,465 2,794 4,810 — 57 3,389 20,515 
Intersegment eliminationsIntersegment eliminations(196)(185)(7,999)(90)(779)(2,973)(12,222)Intersegment eliminations(136)(142)(7,862)(142)(797)(3,361)(12,440)
Revenues from contracts with customersRevenues from contracts with customers75,015 138,214 27,614 621,045 485,250 (112)1,347,026 Revenues from contracts with customers84,600 151,375 27,727 633,674 512,085 28 1,409,489 
Revenues out of scopeRevenues out of scope1,423 3,280 44 11,155 15,902 Revenues out of scope(950)2,413 46 — 12,659 — 14,168 
Total external operating revenuesTotal external operating revenues$76,438 $141,494 $27,658 $621,045 $496,405 $(112)$1,362,928 Total external operating revenues$83,650 $153,788 $27,773 $633,674 $524,744 $28 $1,423,657 
Six Months Ended June 30, 2021ElectricNatural gas
distribution
PipelineConstruction
materials and
contracting
Construction
services
OtherTotal
Six Months Ended June 30, 2022Six Months Ended June 30, 2022ElectricNatural gas
distribution
PipelineConstruction
materials and
contracting
Construction
services
OtherTotal
(In thousands)(In thousands)
Residential utility salesResidential utility sales$62,694 $286,617 $— $— $— $— $349,311 Residential utility sales$66,667 $375,565 $— $— $— $— $442,232 
Commercial utility salesCommercial utility sales66,762 167,664 — — — — 234,426 Commercial utility sales69,615 235,963 — — — — 305,578 
Industrial utility salesIndustrial utility sales20,383 14,992 — — — — 35,375 Industrial utility sales21,229 22,033 — — — — 43,262 
Other utility salesOther utility sales3,391 — — — — 3,391 Other utility sales3,630 — — — — — 3,630 
Natural gas transportationNatural gas transportation— 23,903 57,102 — — — 81,005 Natural gas transportation— 23,837 63,541 — — — 87,378 
Natural gas storageNatural gas storage— — 7,123 — — — 7,123 Natural gas storage— — 6,615 — — — 6,615 
Contracting servicesContracting services— — — 376,859 — — 376,859 Contracting services— — — 444,949 — — 444,949 
Construction materialsConstruction materials— — — 715,174 — — 715,174 Construction materials— — — 792,095 — — 792,095 
Intrasegment eliminationsIntrasegment eliminations— — — (192,496)— — (192,496)Intrasegment eliminations— — — (215,266)— — (215,266)
Inside specialty contracting— — — — 702,892 — 702,892 
Outside specialty contracting— — — — 316,486 — 316,486 
Electrical & mechanical specialty contractingElectrical & mechanical specialty contracting— — — — 900,041 — 900,041 
Transmission & distribution specialty contractingTransmission & distribution specialty contracting— — — — 314,640 — 314,640 
OtherOther19,238 5,803 7,470 93 6,730 39,334 Other22,969 6,360 4,386 — 157 8,730 42,602 
Intersegment eliminationsIntersegment eliminations(271)(284)(34,092)(204)(1,839)(6,685)(43,375)Intersegment eliminations(247)(277)(33,734)(330)(2,861)(8,730)(46,179)
Revenues from contracts with customersRevenues from contracts with customers172,197 498,695 37,603 899,333 1,017,632 45 2,625,505 Revenues from contracts with customers183,863 663,481 40,808 1,021,448 1,211,977 — 3,121,577 
Revenues out of scopeRevenues out of scope(3,873)5,299 82 24,582 26,090 Revenues out of scope(4,807)(2,623)124 — 23,209 — 15,903 
Total external operating revenuesTotal external operating revenues$168,324 $503,994 $37,685 $899,333 $1,042,214 $45 $2,651,595 Total external operating revenues$179,056 $660,858 $40,932 $1,021,448 $1,235,186 $— $3,137,480 
16

Index
Six Months Ended June 30, 2020ElectricNatural gas
distribution
PipelineConstruction
materials and
contracting
Construction
services
OtherTotal
Six Months Ended June 30, 2021Six Months Ended June 30, 2021ElectricNatural gas
distribution
PipelineConstruction
materials and
contracting
Construction
services
OtherTotal
(In thousands)(In thousands)
Residential utility salesResidential utility sales$60,303 $265,354 $— $— $— $— $325,657 Residential utility sales$62,694 $286,617 $— $— $— $— $349,311 
Commercial utility salesCommercial utility sales63,464 156,023 — — — — 219,487 Commercial utility sales66,762 167,664 — — — — 234,426 
Industrial utility salesIndustrial utility sales18,439 14,179 — — — — 32,618 Industrial utility sales20,383 14,992 — — — — 35,375 
Other utility salesOther utility sales3,239 — — — — 3,239 Other utility sales3,391 — — — — — 3,391 
Natural gas transportationNatural gas transportation— 22,148 55,397 — — — 77,545 Natural gas transportation— 23,903 57,102 — — — 81,005 
Natural gas gathering— — 3,271 — — — 3,271 
Natural gas storageNatural gas storage— — 6,150 — — — 6,150 Natural gas storage— — 7,123 — — — 7,123 
Contracting servicesContracting services— — — 401,757 — — 401,757 Contracting services— — — 376,859 — — 376,859 
Construction materialsConstruction materials— — — 690,408 — — 690,408 Construction materials— — — 715,174 — — 715,174 
Intrasegment eliminationsIntrasegment eliminations— — — (208,823)— — (208,823)Intrasegment eliminations— — — (192,496)— — (192,496)
Inside specialty contracting— — — — 697,130 — 697,130 
Outside specialty contracting— — — — 290,846 — 290,846 
Electrical & mechanical specialty contractingElectrical & mechanical specialty contracting— — — — 702,892 — 702,892 
Transmission & distribution specialty contractingTransmission & distribution specialty contracting— — — — 316,486 — 316,486 
OtherOther16,167 5,209 6,604 763 5,852 34,595 Other19,238 5,803 7,470 — 93 6,730 39,334 
Intersegment eliminationsIntersegment eliminations(391)(370)(33,198)(152)(3,249)(5,946)(43,306)Intersegment eliminations(271)(284)(34,092)(204)(1,839)(6,685)(43,375)
Revenues from contracts with customersRevenues from contracts with customers161,221 462,543 38,224 883,190 985,490 (94)2,530,574 Revenues from contracts with customers172,197 498,695 37,603 899,333 1,017,632 45 2,625,505 
Revenues out of scopeRevenues out of scope1,125 5,394 89 23,120 29,728 Revenues out of scope(3,873)5,299 82 — 24,582 — 26,090 
Total external operating revenuesTotal external operating revenues$162,346 $467,937 $38,313 $883,190 $1,008,610 $(94)$2,560,302 Total external operating revenues$168,324 $503,994 $37,685 $899,333 $1,042,214 $45 $2,651,595 
Presented in the previous tables are intrasegment revenues within the construction materials and contracting segment to highlight the focus on vertical integration as this segment sells materials to both third parties and internal customers. Due to consolidation requirements, these revenues must be eliminated against construction materials to arrive at the external operating revenue total for the segment.
Contract balances
The timing of revenue recognition may differ from the timing of invoicing to customers. The timing of invoicing to customers does not necessarily correlate with the timing of revenues being recognized under the cost-to-cost method of accounting. Contracts from contracting services are billed as work progresses in accordance with agreed upon contractual terms. Generally, billing to the customer occurs contemporaneous to revenue recognition. A variance in timing of the billings may result in a contract asset or a contract liability. A contract asset occurs when revenues are recognized under the cost-to-cost measure of progress, which exceeds amounts billed on uncompleted contracts. Such amounts will be billed as standard contract terms allow, usually based on various measures of performance or achievement. A contract liability occurs when there are billings in excess of revenues recognized under the cost-to-cost measure of progress on uncompleted contracts. Contract liabilities decrease as revenue is recognized from the satisfaction of the related performance obligation.
The changes in contract assets and liabilities were as follows:
June 30, 2021December 31, 2020ChangeLocation on Consolidated Balance SheetsJune 30, 2022December 31, 2021ChangeLocation on Consolidated Balance Sheets
(In thousands)(In thousands)
Contract assetsContract assets$147,033 $104,345 $42,688 Receivables, netContract assets$236,951 $125,742 $111,209 Receivables, net
Contract liabilities - currentContract liabilities - current(146,116)(158,603)12,487 Accounts payableContract liabilities - current(167,507)(179,140)11,633 Accounts payable
Contract liabilities - noncurrentContract liabilities - noncurrent(160)(52)(108)Noncurrent liabilities - otherContract liabilities - noncurrent(19)(118)99 Noncurrent liabilities - other
Net contract assets (liabilities)Net contract assets (liabilities)$757 $(54,310)$55,067 Net contract assets (liabilities)$69,425 $(53,516)$122,941 
The Company recognized $14.8 million and $136.7 million in revenue for the three and six months ended June 30, 2022, respectively, which was previously included in contract liabilities at December 31, 2021. The Company recognized $21.9 million and $145.3 million in revenue for the three and six months ended June 30, 2021, respectively, which was previously included in contract liabilities at December 31, 2020.
The Company recognized $32.3a net increase in revenues of $30.0 million and $121.7$42.4 million in revenue for the three and six months ended June 30, 2020,2022, respectively, which was previously includedfrom performance obligations satisfied in contract liabilities at December 31, 2019.
prior periods. The Companycompany recognized a net increase in revenues of $27.3 million and $54.6 million for the three and six months ended June 30, 2021, respectively, from performance obligations satisfied in prior periods. The Company recognized a net increase in revenues of $31.9 million and $42.9 million for the three and six months ended June 30, 2020, respectively, from performance obligations satisfied in prior periods.
17

Index
Remaining performance obligations
The remaining performance obligations, also referred to as backlog, at the construction materials and contracting and construction services segments include unrecognized revenues that the Company reasonably expects to be realized. These unrecognized revenues can include: projects that have a written award, a letter of intent, a notice to proceed, an agreed upon work order to perform work on mutually accepted terms and conditions and change orders or claims to the extent management believes additional contract revenues will be earned and are deemed probable of collection. Excluded from remaining performance obligations are potential orders under master service agreements. The majority of the Company's construction contracts have an original duration of less than two years.
The remaining performance obligations at the pipeline segment include firm transportation and storage contracts with fixed pricing and fixed volumes. The Company has applied the practical expedient, which does not require additional disclosures for contracts with an original duration of less than 12 months, to certain firm transportation and non-regulated contracts. The Company's firm transportation and firm storage contracts included in the remaining performance obligations have weighted average remaining durations of approximatelyless than five and one years, respectively.years.
At June 30, 2021,2022, the Company's remaining performance obligations were $2.4$3.5 billion. The Company expects to recognize the following revenue amounts in future periods related to these remaining performance obligations: $1.8$2.8 billion within the next 12 months or less; $339.5$389.0 million within the next 13 to 24 months; and $225.9$368.4 million in 25 months or more.
Note 10 - Business combinations
The following acquisitions were accounted for as business combinations in accordance with ASC 805 - Business Combinations. The results of the acquired businesses have been included in the Consolidated Financial Statements beginning on the acquisition date. Pro forma financial amounts reflecting the effects of the business combinations are not presented, as none of these business combinations, individually or in the aggregate, were material to the Company's financial position or results of operations.
The acquisitions are also subject to customary adjustments based on, among other things, the amount of cash, debt and working capital in the business as of the closing date. The amounts included in the Consolidated Balance Sheets for these adjustments are considered provisional until final settlement has occurred.
The Company had no acquisitions in the first half of 2022.
In 2021, and 2020, the construction materials and contracting segment's acquisitions included:
Mt. HoodBaker Rock aResources and Oregon Mainline Paving, two premier construction aggregates business inmaterials companies located around the Portland, Oregon wasmetro area, acquired in AprilNovember 2021. At June 30, 2021,2022, the purchase price allocation was preliminary and will be finalized within 12 months of the acquisition date.
The assets of McMurry Ready-Mix Co., anMt. Hood Rock, a construction aggregates and concrete supplierbusiness in Wyoming, wereOregon, acquired in December 2020. At June 30, 2021,April 2021. As of March 31, 2022, the purchase price allocation was preliminary and will be finalized within 12 months of the acquisition date. In the second quarter of 2021, the Company made a purchase price adjustment, which was not material, to the provisional accounting and is reflected in the 2021 allocated amounts below.
The assets of Oldcastle Infrastructure Spokane, a prestressed-concrete business in Washington, were acquired in February 2020. As of December 31, 2020, the purchase price adjustments had been settled with no material adjustments to the provisional accounting.
In February 2020, the construction services segment acquired PerLectric, Inc., an electrical construction company in Virginia. As of March 31, 2021, the purchase price adjustments had been settled with no material adjustments to the provisional accounting.
In 2021, the total purchase price for acquisitions was $13.8$236.1 million, subject to certain adjustments, with cash acquired totaling $100,000.$900,000. The purchase price includes consideration paid of $13.7$235.2 million. The amounts allocated to the aggregated assets acquired and liabilities assumed during 2021 were as follows: $700,000$17.0 million to current assets; $13.0$179.8 million to property, plant and equipment; $2.9$50.6 million to goodwill; $600,000$2.2 million to other intangible assets; $200,000$8.7 million to current liabilities; $100,000$2.5 million to noncurrent liabilities - other; and $3.2 million to deferred tax liabilities. During the first quarter of 2022, measurement period adjustments were made to previously reported provisional amounts, which decreased goodwill and increased property, plant and equipment by $2.1 million. The Company issued debt to finance the acquisitions.
In 2020, the total purchase price for acquisitions was $110.2 million, subject to certain adjustments, with cash acquired totaling $1.7 million. The purchase price includes consideration paid of $106.0 million and $2.5 million of indemnity holdback liabilities. The amounts allocated to the aggregated assets acquired and liabilities assumed during 2020 were as follows: $54.8 million to current assets; $27.1 million to property, plant and equipment; $33.6 million to goodwill; $19.0 million to other intangible assets; $22.6 million to current liabilities; $300,000 to noncurrent liabilities - other and $1.4 million to asset retirement obligations. The Company issued debt to finance thethese acquisitions.
Costs incurred for acquisitions are included in operation and maintenance expense on the Consolidated Statements of Income and were not material forIncome. For the six months ended June 30, 2022, the Company had 0 acquisition costs. For the six months ended June 30, 2021, and 2020.acquisition costs were not material.
18

Index
Note 11 - Leases
The Company's leases primarily include operating leases for equipment, buildings, easements and vehicles. The Company leases certain equipment to third parties through its utility and construction services segments, which are considered short-term operating leases with terms of less than 12 months.
The Company recognized revenue from operating leases of $12.0 million and $23.4 million for the three and six months ended June 30, 2022, respectively. The Company recognized revenue from operating leases of $12.8 million and $24.8 million for the three and six months ended June 30, 2021, respectively. The Company recognized revenue from operating leases of $11.2 million and $23.3 million for the three and six months ended June 30, 2020, respectively. At June 30, 2021,2022, the Company had $9.8$8.7 million of lease receivables with a majority due within 12 months.
18

Index
Note 12 - Goodwill and other intangible assets
The changes in the carrying amount of goodwill were as follows:
Balance at January 1, 2021Goodwill
Acquired
During
 the Year
Measurement
Period
Adjustments
Balance at June 30, 2021Balance at January 1, 2022Goodwill
Acquired
During
 the Year
Measurement
Period
Adjustments
Balance at June 30, 2022
(In thousands) (In thousands)
Natural gas distributionNatural gas distribution$345,736 $$$345,736 Natural gas distribution$345,736 $— $— $345,736 
Construction materials and contractingConstruction materials and contracting226,003 2,900 228,903 Construction materials and contracting276,426 — (2,124)274,302 
Construction servicesConstruction services143,224 143,224 Construction services143,224 — — 143,224 
TotalTotal$714,963 $2,900 $$717,863 Total$765,386 $— $(2,124)$763,262 
Balance at January 1, 2020Goodwill
Acquired
During
the Year
Measurement
Period
Adjustments
Balance at June 30, 2020Balance at January 1, 2021Goodwill
Acquired
During
the Year
Measurement
Period
Adjustments
Balance at June 30, 2021
(In thousands) (In thousands)
Natural gas distributionNatural gas distribution$345,736 $$$345,736 Natural gas distribution$345,736 $— $— $345,736 
Construction materials and contractingConstruction materials and contracting217,234 6,483 223,717 Construction materials and contracting226,003 2,900 — 228,903 
Construction servicesConstruction services118,388 24,436 (3,613)139,211 Construction services143,224 — — 143,224 
TotalTotal$681,358 $30,919 $(3,613)$708,664 Total$714,963 $2,900 $— $717,863 
Balance at January 1, 2020Goodwill
Acquired
During
the Year
Measurement
Period
Adjustments
Balance at December 31, 2020Balance at January 1, 2021Goodwill
Acquired
During
the Year
Measurement
Period
Adjustments
Balance at December 31, 2021
(In thousands) (In thousands)
Natural gas distributionNatural gas distribution$345,736 $$$345,736 Natural gas distribution$345,736 $— $— $345,736 
Construction materials and contractingConstruction materials and contracting217,234 8,778 (9)226,003 Construction materials and contracting226,003 50,640 (217)276,426 
Construction servicesConstruction services118,388 24,436 400 143,224 Construction services143,224 — — 143,224 
TotalTotal$681,358 $33,214 $391 $714,963 Total$714,963 $50,640 $(217)$765,386 
Other amortizable intangible assets were as follows:
June 30, 2021June 30, 2020December 31, 2020 June 30, 2022June 30, 2021December 31, 2021
(In thousands) (In thousands)
Customer relationshipsCustomer relationships$29,423 $30,087 $28,836 Customer relationships$28,990 $29,423 $29,740 
Less accumulated amortizationLess accumulated amortization8,765 5,239 6,887 Less accumulated amortization11,812 8,765 10,650 
20,658 24,848 21,949  17,178 20,658 19,090 
Noncompete agreementsNoncompete agreements3,991 4,229 3,941 Noncompete agreements4,591 3,991 4,591 
Less accumulated amortizationLess accumulated amortization2,576 2,084 2,309 Less accumulated amortization3,206 2,576 2,856 
1,415 2,145 1,632 1,385 1,415 1,735 
OtherOther11,957 13,060 12,927 Other5,607 11,957 12,601 
Less accumulated amortizationLess accumulated amortization10,629 8,538 11,012 Less accumulated amortization4,130 10,629 10,848 
1,328 4,522 1,915  1,477 1,328 1,753 
TotalTotal$23,401 $31,515 $25,496 Total$20,040 $23,401 $22,578 
The previous tables include goodwill and intangible assets associated with the business combinations completed during 2021 and 2020.2021. For more information related to these business combinations, see Note 10.
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Index
Amortization expense for amortizable intangible assets for the three and six months ended June 30, 2022, was $1.3 million and $2.5 million, respectively. Amortization expense for amortizable intangible assets for the three and six months ended June 30, 2021, was $1.2 million and $2.7 million, respectively. Amortization expense for amortizable intangible assets for the three and six months ended June 30, 2020, was $2.7 million and $4.7 million, respectively. Estimated amortization expense for identifiable intangible assets as of June 30, 2021,2022, was:
Remainder of 20212022202320242025Thereafter
(In thousands)
Amortization expense$2,381 $4,678 $4,329 $3,957 $2,060 $5,996 
Remainder of 20222023202420252026Thereafter
(In thousands)
Amortization expense$2,285 $4,591 $4,305 $2,291 $1,781 $4,787 
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Index
Note 13 - Regulatory assets and liabilities
The following table summarizes the individual components of unamortized regulatory assets and liabilities:
Estimated
Recovery or Refund
Period as of
June 30, 2021
*June 30, 2021June 30, 2020December 31, 2020
Estimated
Recovery or Refund
Period as of
June 30, 2022
*June 30, 2022June 30, 2021December 31, 2021
(In thousands)(In thousands)
Regulatory assets:Regulatory assets:Regulatory assets:
Current:Current:Current:
Natural gas costs recoverable through rate adjustmentsNatural gas costs recoverable through rate adjustmentsUp to 1 year$85,045 $42,582 $42,481 Natural gas costs recoverable through rate adjustmentsUp to 1 year$83,557 $85,045 $86,371 
Conservation programsConservation programsUp to 1 year7,580 7,256 7,117 Conservation programsUp to 1 year7,883 7,580 8,225 
DecouplingDecouplingUp to 1 year4,615 6,750 9,131 
Cost recovery mechanismsCost recovery mechanismsUp to 1 year5,692 7,781 10,645 Cost recovery mechanismsUp to 1 year3,459 5,692 4,536 
OtherOtherUp to 1 year11,264 2,938 8,284 OtherUp to 1 year3,021 4,514 10,428 
109,581 60,557 68,527 102,535 109,581 118,691 
Noncurrent:Noncurrent:Noncurrent:
Pension and postretirement benefitsPension and postretirement benefits**155,906 157,033 155,942 Pension and postretirement benefits**137,582 155,906 142,681 
Cost recovery mechanismsCost recovery mechanismsUp to 10 years64,096 44,415 44,870 
Plant costs/asset retirement obligationsPlant costs/asset retirement obligationsOver plant lives72,853 68,191 71,740 Plant costs/asset retirement obligationsOver plant lives63,334 72,853 63,116 
Plant retirement-46,061 49,185 65,919 
Cost recovery mechanismsUp to 10 years44,415 13,140 16,245 
Plant to be retiredPlant to be retired-27,628 46,061 50,070 
Manufactured gas plant site remediationManufactured gas plant site remediation-26,155 14,826 26,429 Manufactured gas plant site remediation-26,031 26,155 26,053 
Taxes recoverable from customersTaxes recoverable from customersOver plant lives10,929 10,890 10,785 Taxes recoverable from customersOver plant lives12,365 10,929 12,339 
Long-term debt refinancing costsLong-term debt refinancing costsUp to 38 years3,482 4,110 3,794 
Natural gas costs recoverable through rate adjustmentsNatural gas costs recoverable through rate adjustmentsUp to 3 years8,389 27,184 21,539 Natural gas costs recoverable through rate adjustmentsUp to 2 years1,839 8,389 5,186 
Long-term debt refinancing costsUp to 39 years4,110 3,980 4,426 
OtherOtherUp to 18 years8,095 6,596 6,356 OtherUp to 17 years10,704 8,095 9,742 
376,913 351,025 379,381 347,061 376,913 357,851 
Total regulatory assetsTotal regulatory assets$486,494 $411,582 $447,908 Total regulatory assets$449,596 $486,494 $476,542 
Regulatory liabilities:Regulatory liabilities:Regulatory liabilities:
Current:Current:Current:
Natural gas costs refundable through rate adjustmentsUp to 1 year$8,935 $29,557 $18,565 
Electric fuel and purchased power deferralElectric fuel and purchased power deferralUp to 1 year5,431 7,799 3,667 Electric fuel and purchased power deferralUp to 1 year$4,161 $5,431 $— 
Taxes refundable to customersTaxes refundable to customersUp to 1 year3,434 4,012 3,557 Taxes refundable to customersUp to 1 year3,728 3,434 3,841 
Cost recovery mechanismsCost recovery mechanismsUp to 1 year3,172 1,388 214 
Natural gas costs refundable through rate adjustmentsNatural gas costs refundable through rate adjustmentsUp to 1 year738 8,935 6,700 
OtherOtherUp to 1 year5,654 6,632 5,661 OtherUp to 1 year6,085 4,266 5,548 
23,454 48,000 31,450 17,884 23,454 16,303 
Noncurrent:Noncurrent:Noncurrent:
Taxes refundable to customersTaxes refundable to customersOver plant lives222,098 236,142 227,850 Taxes refundable to customersOver plant lives209,022 222,098 215,421 
Plant removal and decommissioning costsPlant removal and decommissioning costsOver plant lives171,381 173,399 167,171 Plant removal and decommissioning costsOver plant lives172,755 171,381 168,152 
Pension and postretirement benefitsPension and postretirement benefits**16,940 18,015 16,989 Pension and postretirement benefits**19,686 16,940 20,434 
Accumulated deferred investment tax creditAccumulated deferred investment tax creditUp to 20 years14,009 11,915 12,696 
Cost recovery mechanismsCost recovery mechanismsUp to 20 years10,898 2,499 7,727 
OtherOtherUp to 21 years18,048 11,096 16,065 OtherUp to 16 years6,649 3,634 4,360 
428,467 438,652 428,075 433,019 428,467 428,790 
Total regulatory liabilitiesTotal regulatory liabilities$451,921 $486,652 $459,525 Total regulatory liabilities$450,903 $451,921 $445,093 
Net regulatory positionNet regulatory position$34,573 $(75,070)$(11,617)Net regulatory position$(1,307)$34,573 $31,449 
*Estimated recovery or refund period for amounts currently being recovered or refunded in rates charged to customers.
**    Recovered as expense is incurred or cash contributions are made.
At June 30, 20212022 and 2020,2021, and December 31, 2020,2021, approximately $262.9 million, $317.0 million $296.6 million and $332.5$296.6 million, respectively, of regulatory assets were not earning a rate of return; however, these regulatory assets are expected to be recovered from customers in future rates. These assets are largely comprised of the unfunded portion of pension and postretirement benefits,
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Index
asset retirement obligations, accelerated depreciation on plant retirement and the estimated future cost of manufactured gas plant site remediation.
In the last half of 2021 and the first half of 2022, the Company has experienced higher natural gas costs due to the increase in demand outpacing the supply along with the impact of global events. This increase in natural gas costs experienced in certain jurisdictions has been offset by the recovery of prior period natural gas costs being recovered over a period longer than the normal one-year period, as further discussed below.
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Index
In February 2021, a prolonged period of unseasonably cold temperatures in the central United States significantly increased the demand for electric and natural gas services and contributed to increased market prices. Overall, Montana-Dakota and Great Plains incurred approximately $44.0 million in increased natural gas costs in February 2021 in order to maintain services for its customers. These extraordinary gas costs were recorded as regulatory assets as they are expected to be recovered from customers. The Company has filedMontana-Dakota and Great Plains have received approval for the recovery of purchased gas adjustments related to the cold-weather event in all jurisdictions impacted, including out-of-cycle purchased gas adjustment requests in four out of five jurisdictions affected by this cold-weather event and has received approval in threemost jurisdictions. The Company will continue to engage with its regulators to determine the appropriate recovery periods over which to recover the associated natural gas costs. For a discussion of the Company's most recent cases by jurisdiction, see Note 19.
In 2019, the Company experienced increased natural gas costs in Washington from the rupture of the Enbridge pipeline in Canada in late 2018. As a result, the Company requested, and the WUTC approved, recovery through 2022 of the balance of natural gas costs recoverable related to this period of time, which was over three years rather than its normal one-year recovery period.
In February 2019, the Company announced the retirement of three aging coal-fired electric generating units. The Company has accelerated the depreciation related to these facilities in property, plant and equipment and recorded the difference between the accelerated depreciation, in accordance with GAAP, and the depreciation approved for rate-making purposes as regulatory assets. The first unit ceased operations on March 31, 2021, and in the second quarter of 2021, the Company began amortizing plant retirement and closure costs related to this facility. Requests have beenwere filed with the NDPSC and SDPUC, and subsequently approved, to offset the savings associated with the cessation of operations of this unitthese units with the amortization of the deferred regulatory assets. In the second quarterThe Company ceased operations of Lewis & Clark Station in March 2021 theand Units 1 and 2 at Heskett Station in February 2022. The Company movedsubsequently reclassified the costs being recovered for this facilitythese facilities from plant retirement to cost recovery mechanisms in the previous table. The remaining two units are expected to be retiredtable and began amortizing the associated plant retirement and closure costs in early 2022.the jurisdictions where requests were filed, as previously discussed. The Company expects to recover the regulatory assets related to the plant retirements in future rates. For a discussion of the Company's most recent cases by jurisdiction, see Note 19.
If, for any reason, the Company's regulated businesses cease to meet the criteria for application of regulatory accounting for all or part of their operations, the regulatory assets and liabilities relating to those portions ceasing to meet such criteria would be removed from the balance sheetwritten off and included in the statement of income or accumulated other comprehensive income (loss)loss in the period in which the discontinuance of regulatory accounting occurs.
Note 14 - Fair value measurements
Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability (an exit price) in an orderly transaction between market participants at the measurement date. The fair value ASC establishes a hierarchy for grouping assets and liabilities, based on the significance of inputs. The estimated fair values of the Company's assets and liabilities measured on a recurring basis are determined using the market approach.
The Company measures its investments in certain fixed-income and equity securities at fair value with changes in fair value recognized in income. The Company anticipates using these investments, which consist of insurance contracts, to satisfy its obligations under its unfunded, nonqualified defined benefit and defined contribution plans for executive officers and certain key management employees, and invests in these fixed-income and equity securities for the purpose of earning investment returns and capital appreciation. These investments, which totaled $97.4 million, $105.7 million $92.4 million and $100.1$109.6 million, at June 30, 20212022 and 2020,2021, and December 31, 2020,2021, respectively, are classified as investments on the Consolidated Balance Sheets. The net unrealized gainsloss on these investments werewas $8.4 million and $14.1 million for the three and six months ended June 30, 2022, respectively. The net unrealized gain on these investments was $3.8 million and $3.9 million for the three and six months ended June 30, 2021, respectively. The net unrealized gains on these investments were $9.1 million and $5.4 million for the three and six months ended June 30, 2020, respectively.2021. The change in fair value, which is considered part of the cost of the plan, is classified in other income on the Consolidated Statements of Income.
The Company did not elect the fair value option, which records gains and losses in income, for its available-for-sale securities, which include mortgage-backed securities and U.S. Treasury securities. These available-for-sale securities are recorded at fair value and are classified as investments on the Consolidated Balance Sheets. Unrealized gains or losses are recorded in accumulated other comprehensive income (loss).loss. Details of available-for-sale securities were as follows:
June 30, 2021CostGross
Unrealized
Gains
Gross
Unrealized
Losses
Fair Value
(In thousands)
Mortgage-backed securities$8,278 $127 $$8,396 
U.S. Treasury securities2,893 21 2,872 
Total$11,171 $127 $30 $11,268 
June 30, 2020CostGross
Unrealized
Gains
Gross
Unrealized
Losses
Fair Value
June 30, 2022June 30, 2022CostGross
Unrealized
Gains
Gross
Unrealized
Losses
Fair Value
(In thousands)(In thousands)
Mortgage-backed securitiesMortgage-backed securities$9,812 $239 $$10,045 Mortgage-backed securities$8,128 $— $419 $7,709 
U.S. Treasury securitiesU.S. Treasury securities1,170 1,177 U.S. Treasury securities3,125 — 83 3,042 
TotalTotal$10,982 $246 $$11,222 Total$11,253 $— $502 $10,751 
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Index
December 31, 2020CostGross
Unrealized
Gains
Gross
Unrealized
Losses
Fair Value
June 30, 2021June 30, 2021CostGross
Unrealized
Gains
Gross
Unrealized
Losses
Fair Value
(In thousands)(In thousands)
Mortgage-backed securitiesMortgage-backed securities$9,799 $156 $$9,946 Mortgage-backed securities$8,278 $127 $$8,396 
U.S. Treasury securitiesU.S. Treasury securities1,386 1,381 U.S. Treasury securities2,893 — 21 2,872 
TotalTotal$11,185 $156 $14 $11,327 Total$11,171 $127 $30 $11,268 
Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability (an exit price) in an orderly transaction between market participants
December 31, 2021CostGross
Unrealized
Gains
Gross
Unrealized
Losses
Fair Value
(In thousands)
Mortgage-backed securities$8,702 $51 $47 $8,706 
U.S. Treasury securities2,407 — 11 2,396 
Total$11,109 $51 $58 $11,102 
The Company's assets measured at the measurement date. The fair value ASC establishes a hierarchy for grouping assets and liabilities, based on the significance of inputs. The estimated fair values of the Company's assets and liabilities measured on a recurring basis are determined using the market approach. were as follows:
 Fair Value Measurements at June 30, 2022, Using 
 Quoted Prices in
Active Markets
for Identical
Assets
(Level 1)
Significant
Other
Observable
Inputs
(Level 2)
Significant
Unobservable
Inputs
(Level 3)
Balance at June 30, 2022
(In thousands)
Assets:    
Money market funds$— $8,333 $— $8,333 
Insurance contracts*— 97,431 — 97,431 
Available-for-sale securities:
Mortgage-backed securities— 7,709 — 7,709 
U.S. Treasury securities— 3,042 — 3,042 
Total assets measured at fair value$— $116,515 $— $116,515 
*    The insurance contracts invest approximately 64 percent in fixed-income investments, 15 percent in common stock of large-cap companies, 7 percent in common stock of mid-cap companies, 6 percent in common stock of small-cap companies, 6 percent in target date investments and 2 percent in cash equivalents.
 Fair Value Measurements at June 30, 2021, Using 
 Quoted Prices in
Active Markets
for Identical
Assets
(Level 1)
Significant
Other
Observable
Inputs
(Level 2)
Significant
Unobservable
Inputs
(Level 3)
Balance at June 30, 2021
(In thousands)
Assets:    
Money market funds$— $12,234 $— $12,234 
Insurance contracts*— 105,684 — 105,684 
Available-for-sale securities:
Mortgage-backed securities— 8,396 — 8,396 
U.S. Treasury securities— 2,872 — 2,872 
Total assets measured at fair value$— $129,186 $— $129,186 
*    The insurance contracts invest approximately 53 percent in fixed-income investments, 20 percent in common stock of large-cap companies, 10 percent in common stock of mid-cap companies, 9 percent in common stock of small-cap companies, 6 percent in target date investments and 2 percent in cash equivalents.
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Index
 Fair Value Measurements at December 31, 2021, Using 
Quoted Prices in
Active Markets
for Identical
Assets
 (Level 1)
Significant
Other
Observable
Inputs
(Level 2)
Significant
Unobservable
Inputs
 (Level 3)
Balance at December 31, 2021
(In thousands)
Assets:    
Money market funds$— $10,190 $— $10,190 
Insurance contracts*— 109,603 — 109,603 
Available-for-sale securities:
Mortgage-backed securities— 8,706 — 8,706 
U.S. Treasury securities— 2,396 — 2,396 
Total assets measured at fair value$— $130,895 $— $130,895 
*    The insurance contracts invest approximately 61 percent in fixed-income investments, 17 percent in common stock of large-cap companies, 8 percent in common stock of mid-cap companies, 7 percent in common stock of small-cap companies, 5 percent in target date investments and 2 percent in cash equivalents.
The Company's money market funds are valued at the net asset value of shares held at the end of the quarter,period, based on published market quotations on active markets, or using other known sources including pricing from outside sources. The estimated fair value of the Company's mortgage-backed securities and U.S. Treasury securities are based on comparable market transactions, other observable inputs or other sources, including pricing from outside sources. The estimated fair value of the Company's insurance contracts are based on contractual cash surrender values that are determined primarily by investments in managed separate accounts of the insurer. These amounts approximate fair value. The managed separate accounts are valued based on other observable inputs or corroborated market data.
Though the Company believes the methods used to estimate fair value are consistent with those used by other market participants, the use of other methods or assumptions could result in a different estimate of fair value.
The Company's assets measured at fair value on a recurring basis were as follows:
 Fair Value Measurements at June 30, 2021, Using 
 Quoted Prices in
Active Markets
for Identical
Assets
(Level 1)
Significant
Other
Observable
Inputs
(Level 2)
Significant
Unobservable
Inputs
(Level 3)
Balance at June 30, 2021
(In thousands)
Assets:    
Money market funds$— $12,234 $— $12,234 
Insurance contracts*— 105,684 105,684 
Available-for-sale securities:
Mortgage-backed securities— 8,396 — 8,396 
U.S. Treasury securities— 2,872 — 2,872 
Total assets measured at fair value$— $129,186 $— $129,186 
*    The insurance contracts invest approximately 53 percent in fixed-income investments, 20 percent in common stock of large-cap companies, 10 percent in common stock of mid-cap companies, 9 percent in common stock of small-cap companies, 6 percent in target date investments and 2 percent in cash equivalents.
 Fair Value Measurements at June 30, 2020, Using 
 Quoted Prices in
Active Markets
for Identical
Assets
(Level 1)
Significant
Other
Observable
Inputs
(Level 2)
Significant
Unobservable
Inputs
(Level 3)
Balance at June 30, 2020
(In thousands)
Assets:    
Money market funds$— $8,478 $— $8,478 
Insurance contract*— 92,413 — 92,413 
Available-for-sale securities:
Mortgage-backed securities— 10,045 — 10,045 
U.S. Treasury securities— 1,177 — 1,177 
Total assets measured at fair value$— $112,113 $— $112,113 
*    The insurance contract invests approximately 38 percent in fixed-income investments, 23 percent in common stock of large-cap companies, 9 percent in common stock of mid-cap companies, 9 percent in common stock of small-cap companies, 4 percent in target date investments and 17 percent in cash equivalents.
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Index
 Fair Value Measurements at December 31, 2020, Using 
Quoted Prices in
Active Markets
for Identical
Assets
 (Level 1)
Significant
Other
Observable
Inputs
(Level 2)
Significant
Unobservable
Inputs
 (Level 3)
Balance at December 31, 2020
(In thousands)
Assets:    
Money market funds$— $8,917 $— $8,917 
Insurance contract*— 100,104 — 100,104 
Available-for-sale securities:
Mortgage-backed securities— 9,946 — 9,946 
U.S. Treasury securities— 1,381 — 1,381 
Total assets measured at fair value$— $120,348 $— $120,348 
*    The insurance contract invests approximately 57 percent in fixed-income investments, 18 percent in common stock of large-cap companies, 9 percent in common stock of mid-cap companies, 9 percent in common stock of small-cap companies, 5 percent in target date investments and 2 percent in cash equivalents.
The Company applies the provisions of the fair value measurement standard to its nonrecurring, non-financial measurements, including long-lived asset impairments. These assets are not measured at fair value on an ongoing basis but are subject to fair value adjustments only in certain circumstances. The Company reviews the carrying value of its long-lived assets, excluding goodwill, whenever events or changes in circumstances indicate that such carrying amounts may not be recoverable.
The Company performed fair value assessments of the assets acquired and liabilities assumed in the business combinations that occurred during 2021 and 2020.2021. The fair value of these assets and liabilities were determined based on Level 2 and Level 3 inputs.
The Company's long-term debt is not measured at fair value on the Consolidated Balance Sheets and the fair value is being provided for disclosure purposes only. The fair value was categorized as Level 2 in the fair value hierarchy and was based on discounted future cash flows using current market interest rates. The estimated fair value of the Company's Level 2 long-term debt was as follows:
June 30, 2021June 30, 2020December 31, 2020 June 30, 2022June 30, 2021December 31, 2021
(In thousands)(In thousands)
Carrying amountCarrying amount$2,337,049 $2,281,876 $2,213,130 Carrying amount$2,927,967 $2,337,049 $2,741,900 
Fair valueFair value$2,616,232 $2,563,734 $2,537,289 Fair value$2,753,684 $2,616,232 $2,984,866 
The carrying amounts of the Company's remaining financial instruments included in current assets and current liabilities approximate their fair values.
Note 15 - Debt
Certain debt instruments of the Company's subsidiaries contain restrictive and financial covenants and cross-default provisions. In order to borrow under the debt agreements, the subsidiary companies must be in compliance with the applicable covenants and certain other conditions, all of which the subsidiaries, as applicable, were in compliance with at June 30, 2021.2022. In the event the subsidiaries do not comply with the applicable covenants and other conditions, alternative sources of funding may need to be pursued.
Montana-Dakota's and Centennial's respective commercial paper programs are supported by revolving credit agreements. While the amount of commercial paper outstanding does not reduce available capacity under the respective revolving credit agreements, Montana-Dakota and Centennial do not issue commercial paper in an aggregate amount exceeding the available capacity under the credit agreements. The commercial paper borrowings may vary during the period, largely the result of fluctuations in working capital requirements due to the seasonality of certain operations of the Company's subsidiaries.
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Index
Short-term debt
Centennial On March 18, 2022, Centennial entered into a $100.0 million term loan agreement with a SOFR-based variable interest rate and a maturity date of March 17, 2023. The agreement contains customary covenants and provisions, including a covenant of Centennial not to permit, at any time, the ratio of total debt to total capitalization to be greater than 65 percent. The covenants also include certain restrictions on the sale of certain assets, loans and investments.
Long-term debt
Long-term Debt Outstanding Long-term debt outstanding was as follows:
Weighted
Average
Interest
Rate at
June 30, 2021
June 30, 2021June 30, 2020December 31, 2020
Weighted
Average
Interest
Rate at
June 30, 2022
June 30, 2022June 30, 2021December 31, 2021
(In thousands) (In thousands)
Senior Notes due on dates ranging from October 22, 2022 to October 30, 20604.40 %$1,950,000 $1,900,000 $1,950,000 
Senior Notes due on dates ranging from October 22, 2022 to June 15, 2062Senior Notes due on dates ranging from October 22, 2022 to June 15, 20624.29 %$2,365,000 $1,950,000 $2,125,000 
Commercial paper supported by revolving credit agreementsCommercial paper supported by revolving credit agreements.32 %297,400 290,100 125,600 Commercial paper supported by revolving credit agreements1.96 %495,400 297,400 450,300 
Credit agreements due on June 7, 2024Credit agreements due on June 7, 20243.25 %48,550 11,200 95,900 Credit agreements due on June 7, 20244.75 %29,860 48,550 127,500 
Medium-Term Notes due on dates ranging from September 15, 2027 to March 16, 2029Medium-Term Notes due on dates ranging from September 15, 2027 to March 16, 20297.32 %35,000 50,000 35,000 Medium-Term Notes due on dates ranging from September 15, 2027 to March 16, 20297.32 %35,000 35,000 35,000 
Term Loan Agreement due on September 3, 2032Term Loan Agreement due on September 3, 20322.00 %8,400 9,100 8,400 Term Loan Agreement due on September 3, 20322.00 %7,700 8,400 7,700 
Other notes due on dates ranging from July 15, 2021 to January 1, 2061.83 %3,232 28,342 4,034 
Other notes due on dates ranging from January 1, 2024 to January 1, 2061Other notes due on dates ranging from January 1, 2024 to January 1, 2061.95 %2,411 3,232 2,564 
Less unamortized debt issuance costsLess unamortized debt issuance costs5,505 6,668 5,803 Less unamortized debt issuance costs6,809 5,505 6,090 
Less discountLess discount28 198 Less discount595 28 74 
Total long-term debtTotal long-term debt2,337,049 2,281,876 2,213,130 Total long-term debt2,927,967 2,337,049 2,741,900 
Less current maturitiesLess current maturities1,549 16,560 1,555 Less current maturities214,453 1,549 148,053 
Net long-term debtNet long-term debt$2,335,500 $2,265,316 $2,211,575 Net long-term debt$2,713,514 $2,335,500 $2,593,847 
Schedule of Debt Maturities Long-term debt maturities, which excludes unamortized debt issuance costs and discount, at June 30, 2021,2022, were as follows:
Remainder of
2021
2022202320242025Thereafter
(In thousands)
Long-term debt maturities$752 $148,021 $77,921 $407,372 $177,802 $1,530,714 
Remainder of
2022
2023202420252026Thereafter
(In thousands)
Long-term debt maturities$147,953 $77,923 $586,064 $177,802 $140,802 $1,804,827 
Note 16 - Cash flow information
Cash expenditures for interest and income taxes were as follows:
Six Months EndedSix Months Ended
June 30, June 30,
20212020  20222021 
(In thousands) (In thousands)
Interest, net*Interest, net*$45,870 $47,769 Interest, net*$50,294 $45,870 
Income taxes paid, netIncome taxes paid, net$46,734 $735 Income taxes paid, net$16,520 $46,734 
*    AFUDC - borrowed was $816,000$1.3 million and $1.3 million$816,000 for the six months ended June 30, 20212022 and 2020,2021, respectively.
Noncash investing and financing transactions were as follows:
June 30, 2021June 30, 2020December 31, 2020June 30, 2022June 30, 2021December 31, 2021
(In thousands)(In thousands)
Right-of-use assets obtained in exchange for new operating lease liabilitiesRight-of-use assets obtained in exchange for new operating lease liabilities$17,224 $24,181 $54,356 Right-of-use assets obtained in exchange for new operating lease liabilities$18,907 $17,224 $55,987 
Property, plant and equipment additions in accounts payableProperty, plant and equipment additions in accounts payable$31,886 $36,493 $26,082 Property, plant and equipment additions in accounts payable$46,295 $31,886 $57,605 
Accrual for holdback payment related to a business combination$$5,000 $2,500 
Debt assumed in connection with a business combinationDebt assumed in connection with a business combination$— $— $10 
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Note 17 - Business segment data
The Company's reportable segments are those that are based on the Company's method of internal reporting, which generally segregates the strategic business units due to differences in products, services and regulation. The internal reporting of these operating segments is defined based on the reporting and review process used by the Company's chief executive officer. The Company's operations are located within the United States.
The electric segment generates, transmits and distributes electricity in Montana, North Dakota, South Dakota and Wyoming. The natural gas distribution segment distributes natural gas in those states, as well as in Idaho, Minnesota, Oregon and Washington. These operations also supply related value-added services.
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The pipeline segment provides natural gas transportation and underground storage services through a regulated pipeline system primarily in the Rocky Mountain and northern Great Plains regions of the United States. This segment also provides non-regulated cathodic protection and other energy-related services. In 2020, the pipeline segment divested its regulated and non-regulated natural gas gathering assets. With the completion of these sales, the segment exited the natural gas gathering business.
The construction materials and contracting segment mines, processes and sells construction aggregates (crushed stone, sand and gravel); produces and sells asphalt mix; and supplies ready-mixedready-mix concrete. This segment focuses on vertical integration of its contracting services with its construction materials to support the aggregate-based product lines including aggregate placement, asphalt and concrete paving, and site development and grading. Although not common to all locations, other products include the sale of cement, liquid asphalt oil for various commercial and roadway applications, various finished concrete products and other building materials and related contracting services. This segment operates in the central, southern and western United States, as well asincluding Alaska and Hawaii.
The construction services segment provides insidea full spectrum of construction services through its electrical and outsidemechanical and transmission and distribution specialty contracting services in 43 states plus Washington D.C.across the United States. These specialty contracting services are provided to utilities and manufacturing, transportation, commercial, industrial, institutional, renewable and governmental customers. Its insideelectrical and mechanical contracting services include design, construction and maintenance of electrical and communication wiring and infrastructure, fire suppression systems, and mechanical piping and services. Its outsidetransmission and distribution contracting services include design, construction and maintenance of overhead and underground electrical, distributiongas and transmission lines, substations, external lighting, traffic signalization, and gas pipelines,communication infrastructure, as well as utility excavation and the manufacturemanufacturing and distribution of transmission line construction equipment. This segment also constructsequipment and maintains renewable energy projects. These specialty contracting services are provided to utilities and large manufacturing, commercial, industrial, institutional and governmental customers.tools.
The Other category includes the activities of Centennial Capital, which, through its subsidiary InterSource Insurance Company, insures various types of risks as a captive insurer for certain of the Company's subsidiaries. The function of the captive insurer is to fund the self-insured layers of the insured Company's general liability, automobile liability, pollution liability and other coverages. Centennial Capital also owns certain real and personal property. In addition, the Other category includes certain assets, liabilities and tax adjustments of the holding company primarily associated with corporate functions and certain general and administrative costs (reflected in operation and maintenance expense) and interest expense, which were previously allocated to the refining business and Fidelity and do not meet the criteria for income (loss) from discontinued operations. The Other category also includes Centennial Resources' former investment in Brazil.
Discontinued operations include the results and supporting activities of Fidelity other than certain general and administrative costs and interest expense as described above.
The information below follows the same accounting policies as described in Note 2 of the Notes to Consolidated Financial Statements in the 20202021 Annual Report. Information on the Company's segments was as follows:
Three Months EndedSix Months EndedThree Months EndedSix Months Ended
June 30,June 30,
2021 2020 2021 2020  2022 2021 2022 2021 
(In thousands) (In thousands)
External operating revenues:External operating revenues: External operating revenues: 
Regulated operations:Regulated operations:Regulated operations:
ElectricElectric$83,650 $76,438 $168,324 $162,346 Electric$85,461 $83,650 $179,056 $168,324 
Natural gas distributionNatural gas distribution153,788 141,494 503,994 467,937 Natural gas distribution210,440 153,788 660,858 503,994 
PipelinePipeline23,130 23,421 30,633 29,752 Pipeline27,556 23,130 36,999 30,633 
260,568 241,353 702,951 660,035  323,457 260,568 876,913 702,951 
Non-regulated operations:Non-regulated operations:Non-regulated operations:
PipelinePipeline4,643 4,237 7,052 8,561 Pipeline2,257 4,643 3,933 7,052 
Construction materials and contractingConstruction materials and contracting633,674 621,045 899,333 883,190 Construction materials and contracting711,613 633,674 1,021,448 899,333 
Construction servicesConstruction services524,744 496,405 1,042,214 1,008,610 Construction services683,594 524,744 1,235,186 1,042,214 
OtherOther28 (112)45 (94)Other— 28 — 45 
1,163,089 1,121,575 1,948,644 1,900,267  1,397,464 1,163,089 2,260,567 1,948,644 
Total external operating revenuesTotal external operating revenues$1,423,657 $1,362,928 $2,651,595 $2,560,302 Total external operating revenues$1,720,921 $1,423,657 $3,137,480 $2,651,595 
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Three Months EndedSix Months EndedThree Months EndedSix Months Ended
June 30,June 30,
2021 2020 2021 2020  2022 2021 2022 2021 
(In thousands) (In thousands)
Intersegment operating revenues:Intersegment operating revenues: Intersegment operating revenues: 
Regulated operations:Regulated operations:Regulated operations:
ElectricElectric$136 $196 $271 $391 Electric$124 $136 $247 $271 
Natural gas distributionNatural gas distribution142 185 284 370 Natural gas distribution141 142 277 284 
PipelinePipeline7,695 7,857 33,685 33,040 Pipeline7,404 7,695 33,338 33,685 
7,973 8,238 34,240 33,801 7,669 7,973 33,862 34,240 
Non-regulated operations:Non-regulated operations:Non-regulated operations:
PipelinePipeline167 142 407 158 Pipeline388 167 396 407 
Construction materials and contractingConstruction materials and contracting142 90 204 152 Construction materials and contracting200 142 330 204 
Construction servicesConstruction services797 779 1,839 3,249 Construction services1,803 797 2,861 1,839 
OtherOther3,361 2,973 6,685 5,946 Other4,389 3,361 8,730 6,685 
4,467 3,984 9,135 9,505 6,780 4,467 12,317 9,135 
Intersegment eliminationsIntersegment eliminations(12,440)(12,222)(43,375)(43,306)Intersegment eliminations(14,449)(12,440)(46,179)(43,375)
Total intersegment operating revenuesTotal intersegment operating revenues$$$$Total intersegment operating revenues$— $— $— $— 
Operating income (loss):Operating income (loss):Operating income (loss):
ElectricElectric$12,806 $12,810 $26,672 $27,669 Electric$8,325 $12,806 $23,369 $26,672 
Natural gas distributionNatural gas distribution3,601 678 57,173 50,677 Natural gas distribution(638)3,601 55,617 57,173 
PipelinePipeline11,076 12,225 23,612 23,644 Pipeline12,602 11,076 24,484 23,612 
Construction materials and contractingConstruction materials and contracting72,452 74,741 37,563 31,472 Construction materials and contracting54,354 72,452 9,749 37,563 
Construction servicesConstruction services37,774 37,882 78,051 61,678 Construction services46,141 37,774 75,639 78,051 
OtherOther(20)(82)(218)185 Other(214)(20)(946)(218)
Total operating incomeTotal operating income$137,689 $138,254 $222,853 $195,325 Total operating income$120,570 $137,689 $187,912 $222,853 
Net income (loss):Net income (loss):Net income (loss):
Regulated operations:Regulated operations:Regulated operations:
ElectricElectric$10,304 $12,153 $21,054 $23,527 Electric$4,601 $10,304 $15,880 $21,054 
Natural gas distributionNatural gas distribution(707)(959)35,471 31,410 Natural gas distribution(7,498)(707)28,817 35,471 
PipelinePipeline8,089 8,684 17,283 16,070 Pipeline7,191 8,089 15,147 17,283 
17,686 19,878 73,808 71,007 4,294 17,686 59,844 73,808 
Non-regulated operations:Non-regulated operations:Non-regulated operations:
PipelinePipeline1,106 268 810 255 Pipeline(60)1,106 (679)810 
Construction materials and contractingConstruction materials and contracting51,396 53,020 20,584 14,806 Construction materials and contracting32,584 51,396 (7,427)20,584 
Construction servicesConstruction services28,885 27,932 58,709 44,755 Construction services34,454 28,885 55,778 58,709 
OtherOther1,098 (1,256)(1,624)(5,442)Other(640)1,098 (5,151)(1,624)
82,485 79,964 78,479 54,374 66,338 82,485 42,521 78,479 
Income from continuing operationsIncome from continuing operations100,171 99,842 152,287 125,381 Income from continuing operations70,632 100,171 102,365 152,287 
Income (loss) from discontinued operations, net of tax19 (139)34 (548)
Discontinued operations, net of taxDiscontinued operations, net of tax35 19 65 34 
Net incomeNet income$100,190 $99,703 $152,321 $124,833 Net income$70,667 $100,190 $102,430 $152,321 
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Note 18 - Employee benefit plans
Pension and other postretirement plans
The Company has noncontributory qualified defined benefit pension plans and other postretirement benefit plans for certain eligible employees.
Components of net periodic benefit credit for the Company's pension andbenefit plans were as follows:
Three Months EndedSix Months Ended
June 30,June 30,
2022202120222021
(In thousands)
Components of net periodic benefit credit:
Interest cost$2,631 $2,455 $5,262 $4,910 
Expected return on assets(4,864)(4,894)(9,728)(9,788)
Amortization of net actuarial loss1,671 2,004 3,342 4,008 
Net periodic benefit credit$(562)$(435)$(1,124)$(870)
Components of net periodic benefit credit for the Company's other postretirement benefit plans were as follows:
Pension BenefitsOther
Postretirement Benefits
Three Months EndedSix Months Ended
Three Months Ended June 30,2021202020212020
June 30,
2022202120222021
(In thousands)(In thousands)
Components of net periodic benefit credit:Components of net periodic benefit credit:Components of net periodic benefit credit:
Service costService cost$$$400 $414 Service cost$354 $400 $708 $800 
Interest costInterest cost2,455 3,074 466 627 Interest cost474 466 948 932 
Expected return on assetsExpected return on assets(4,894)(5,214)(1,275)(1,401)Expected return on assets(1,322)(1,275)(2,644)(2,550)
Amortization of prior service creditAmortization of prior service credit(349)(402)Amortization of prior service credit(350)(349)(700)(698)
Amortization of net actuarial loss2,004 1,723 142 
Amortization of net actuarial (gain) lossAmortization of net actuarial (gain) loss(54)(108)12 
Net periodic benefit credit, including amount capitalizedNet periodic benefit credit, including amount capitalized(435)(417)(752)(620)Net periodic benefit credit, including amount capitalized(898)(752)(1,796)(1,504)
Less amount capitalizedLess amount capitalized44 35 Less amount capitalized53 44 84 83 
Net periodic benefit creditNet periodic benefit credit$(435)$(417)$(796)$(655)Net periodic benefit credit$(951)$(796)$(1,880)$(1,587)
Pension BenefitsOther
Postretirement Benefits
Six Months Ended June 30,2021202020212020
(In thousands)
Components of net periodic benefit credit:
Service cost$$$800 $766 
Interest cost4,910 6,047 932 1,218 
Expected return on assets(9,788)(9,975)(2,550)(2,649)
Amortization of prior service credit(698)(699)
Amortization of net actuarial loss4,008 3,586 12 144 
Net periodic benefit credit, including amount capitalized(870)(342)(1,504)(1,220)
Less amount capitalized83 67 
Net periodic benefit credit$(870)$(342)$(1,587)$(1,287)

The components of net periodic benefit credit, other than the service cost component, are included in other income on the Consolidated Statements of Income. The service cost component is included in operation and maintenance expense on the Consolidated Statements of Income.
Nonqualified defined benefit plans
In addition to the qualified defined benefit pension plans reflected in the table at the beginning of this note, the Company also has unfunded, nonqualified defined benefit plans for executive officers and certain key management employees. The Company's net periodic benefit cost for these plans was $773,000 and $769,000 for the three months ended June 30, 2022 and 2021, respectively, and $1.5 million for both the three and six months ended June 30, 2021, respectively. The Company's net periodic benefit cost for these plans for the three2022 and six months ended June 30, 2020 was $900,000 and $1.9 million, respectively.2021. The components of net periodic benefit cost for these plans are included in other income on the Consolidated Statements of Income.
Note 19 - Regulatory matters
The Company regularly reviews the need for electric and natural gas rate changes in each of the jurisdictions in which service is provided. The Company files for rate adjustments to seek recovery of operating costs and capital investments, as well as reasonable returns as allowed by regulators. Certain regulatory proceedings and cases may also contain recurring mechanisms that can have an annual true-up. Examples of these recurring mechanisms include: infrastructure riders, transmission trackers, renewable resource cost adjustment riders, as well as weather normalization and decoupling mechanisms. The following paragraphs summarize the Company's significant open regulatory proceedings and cases by jurisdiction including updates to those reported in the 20202021 Annual Report.Report and should be read in conjunction with previous filings. The Company is unable to predict the ultimate outcome of these matters, the timing of final decisions of the various regulators and courts, or the effect on the Company's results of operations, financial position or cash flows.
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IPUC
Intermountain defers the difference between the actual cost of gas spent to serve customers and the amount approved to be recovered from customers and annually prepares a true-up pursuant to the purchased gas adjustment tariff. On January 12, 2021,May 31, 2022, Intermountain filed an application with the IPUC for a decreasean out-of-cycle cost of gas adjustment requesting an increase in its depreciation and amortization rates of approximately $2.9$67.0 million annually or a decrease from a combined rate of 3.0approximately 25.2 percent above current rates. The primary reason for the requested increase was to 2.6 percent.mitigate the under collection balance due to the significant increase in the commodity price for natural gas. On June 3, 2021, IntermountainJuly 29, 2022, the request was approved with rates effective August 1, 2022. The new rates will be in effect until October 1, 2022, when rates based on Intermountain's annual purchased gas adjustment tariff filing will take effect, which is expected to be filed a joint settlement agreement with the IPUC Staff reflecting a revised annual decrease of approximately $3.8 million or approximately 2.4 percent. Intermountain and the IPUC Staff have requested the rates be retroactive to January 1, 2021. This matter is pending before the IPUC.
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in August 2022.
MNPUC
Great Plains defers the difference between the actual cost of gas spent to serve customers and that recovered from customers on a monthly basis. Annually, Great Plains prepares a true-up pursuant to the purchased gas adjustment tariff. On MarchAugust 30, 2021, the MNPUC issued an order to allow Great Plains filedrecovery of an out-of-cycle cost of gas adjustment withof $8.8 million over a period of 27 months. The order was effective September 1, 2021, and is subject to a prudence review by the MNPUC for the recovery of approximately $11.1 million.MNPUC. The requested increase was for the February 2021 extreme cold weather, primarily in the central United States, and market conditions surrounding the natural gas commodity market. The length of recovery was requested at 28 monthsMNPUC prudence review is pending with a rate structure that is higher in the summer and lower in the winter duean order to the lower gas usage in the summer to mitigate the impactbe issued on customers. or before August 29, 2022.
On June 8, 2021, the Company's request was denied; however,1, 2022, Great Plains filed an application with the MNPUC initiatedfor a decrease in its own investigation intodepreciation and amortization rates of approximately $1.2 million annually or a decrease from a combined rate of 4.5 percent to 2.8 percent. Great Plains has requested the impact of severe weather in February 2021 on Minnesota's natural gas utility companies and consumers. The investigation will address the recovery of the extraordinary gas costs resulting from the February 2021 extreme cold weather event. MNPUC deliberations on this matter are scheduled for August 5, 2021.rates be retroactive to January 1, 2022. This matter is pending before the MNPUC.
NDPSC
Montana-Dakota defers the difference between the actual cost of gas spent to serve customers and that recovered from customers on a monthly basis. Annually, Montana-Dakota prepares a true-up pursuant to the purchased gas adjustment tariff. On March 31, 2021,May 16, 2022, Montana-Dakota filed an out-of-cycle cost of gas adjustmentapplication with the NDPSC for an electric general rate increase of approximately $13.5 million.$25.4 million annually or 12.3 percent above current rates. The requested increase was forprimarily to recover investments in production, transmission and distribution facilities and the February 2021 extreme cold weather, primarily inassociated depreciation, operation and maintenance expenses and taxes associated with the central United States, and market conditions surroundingincreased investment. The NDPSC has 7 months to render a final decision on the natural gas commodity market. The filing was made to expedite recovery of these costs and maintain the timing of annual purchased gas adjustment filings.rate case. On May 27, 2021,July 14, 2022, the NDPSC approved the requestedan interim rate increase with a recovery period of 16 months effective June 1, 2021.approximately $10.9 million annually or 5.3 percent above current rates, subject to refund, for service rendered on and after July 15, 2022.
On July 15, 2021,2022, Montana-Dakota filed an annualapplication with the NDPSC to request an update to its transmission cost adjustment rider with the NDPSC requesting to recover revenues of approximately $14.5$12.9 million, which includes a true-up of the prior period adjustment, resulting in a decrease of approximately $1.1$1.6 million from current rates. This filing includes approximately $5.1 million relatedThe request is to recover transmission-related expenses and the revenue requirement for transmission capital projects.facilities not currently recovered through electric service rates. The request proposes the rates be effective for service rendered on and after November 1, 2022. This matter is pending before the NDPSC.
SDPUC
Montana-Dakota has a transmission cost recovery rider that allows annual updates to rates for actual costs associated with transmission-related projects and services. On March 11, 2021,1, 2022, Montana-Dakota filed an informationalannual update to its transmission cost recovery rider to recover a revenue requirement of approximately $2.5 million annually, which reflects a true-up of the infrastructure rider rate tariff withprior period adjustment, resulting in an increase in current rates of approximately $1.5 million. On May 12, 2022, the SDPUC related toapproved the retirementrates as requested with an effective date of UnitJune 1, at Lewis & Clark Station. The filing includes the annual revenue requirement offset by the related amortization of the accelerated depreciation on the plant, net of excess deferred income taxes, and the decommissioning costs projected to be incurred in 2021 resulting in 0 impact to customers. This matter is pending before the SDPUC.2022.
WUTC
On June 19, 2020,September 30, 2021, Cascade filed an application with the WUTC for a natural gas rate increase of approximately $13.8$13.7 million annually or approximately 5.35.1 percent above current rates. The requested increase was primarily to recover investments made in infrastructure upgrades, as well as increased operationto recover 2021 wage increases. On March 22, 2022, Cascade filed a multi-party settlement and maintenance costs.stipulation on behalf of Cascade updated its filing on July 24, 2020, toand the staff of the WUTC that would result in a revenue requirement increase of approximately $14.3$10.7 million annually or approximately 5.5 percent.4.0 percent above current rates. The WUTC has until September 1, 2022, to render a final decision on the rate case. This matter is pending before the WUTC.
On March 24, 2022, Cascade filed a rebuttal case on January 8, 2021, supportingrequest for a tariff revision with the WUTC to rectify an increaseinadvertent IRS normalization violation resulting from its tariff established in 2018 that passes back to customers the reversal of plant-related excess deferred income taxes through an annual rate adjustment. This request was made in response to the issuance of an IRS private letter ruling to another Washington utility with the same annual rate adjustment tariff, which addressed its normalization violation. The private letter ruling concluded the tariff to refund excess deferred income taxes without corresponding adjustments for other components of rate base or changes in depreciation or income tax expense, is an impermissible methodology under the IRS normalization and consistency rules. Cascade's request proposes a similar remedy through the tariff to recover the excess amounts refunded to customers while this tariff has been in place, and revises the method going forward to reflect excess deferred income taxes in rates in the same manner as other components of rate base from its most recent general rate case. Cascade has requested recovery of the excess refunded to customers of approximately $7.4$3.3 million annually or approximately 2.8 percent. The revised revenue withinand elimination of the rebuttal case reflects several adjustments including depreciation, reduction to return on equity, delays on certain projects, adjustments to income taxes and updates to wages. On May 18, 2021,currently deferred, but not yet refunded balance. This matter is pending before the WUTC, issued a final order reflectingwith an overall revenue decrease of approximately $391,000 or approximately 0.2 percent. On May 25, 2021, Cascade filed a petitionevidentiary hearing scheduled for reconsideration with the WUTC. On June 18, 2021, the WUTC denied Cascade's petition for reconsideration. Final rates were effective July 1, 2021.November 17, 2022.
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On June 1, 2021,2022, Cascade filed its annual pipeline cost recovery mechanism requesting an increase in annual revenue of approximately $2.1$2.6 million or approximately 0.8 percent.0.9 percent, which will be adjusted as necessary prior to the effective date. The filing includes a proposed effective date of November 1, 2021. This filing will be updated to more accurate data prior to the effective date.2022. This matter is pending before the WUTC.
Note 20 - Contingencies
The Company is party to claims and lawsuits arising out of its business and that of its consolidated subsidiaries, which may include, but are not limited to, matters involving property damage, personal injury, and environmental, contractual, statutory and regulatory obligations. The Company accrues a liability for those contingencies when the incurrence of a loss is probable and the amount can be reasonably estimated. If a range of amounts can be reasonably estimated and no amount within the range is a better estimate than any other amount, then the minimum of the range is accrued. The Company does not accrue liabilities when the likelihood that the liability has been incurred is probable but the amount cannot be reasonably estimated or when the liability is believed to be only reasonably possible or remote. For contingencies where an unfavorable outcome is probable or reasonably possible and which are material, the Company discloses the nature of the contingency and, in some circumstances, an estimate of the possible loss. Accruals are based on the best information available, but in certain situations management is unable to estimate an amount or range of a reasonably possible loss including, but not limited to when: (1) the damages are unsubstantiated or indeterminate, (2) the proceedings are in the early stages, (3) numerous parties are involved, or (4) the matter involves novel or unsettled legal theories.
At June 30, 20212022 and 2020,2021, and December 31, 2020,2021, the Company accrued liabilities, which have not been discounted, including liabilities held for sale, of $28.2 million, $30.8 million $34.5 million and $41.5$37.0 million, respectively. At June 30, 20212022 and 2020,2021, and December 31, 2020,2021, the Company also recorded corresponding insurance receivables of $5.9 million, $6.9 million $21.1 million and
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$17.5 $14.1 million, respectively, and regulatory assets of $20.9 million, $21.2 million $10.4 million and $21.3$21.2 million, respectively, related to the accrued liabilities. The accruals are for contingencies includingresulting from litigation, production taxes, royalty claims and environmental matters. This includes amounts that have been accrued for matters discussed in Environmental matters within this note. The Company will continue to monitor each matter and adjust accruals as might be warranted based on new information and further developments. Management believes that the outcomes with respect to probable and reasonably possible losses in excess of the amounts accrued, net of insurance recoveries, while uncertain, either cannot be estimated or will not have a material effect upon the Company's financial position, results of operations or cash flows. Unless otherwise required by GAAP, legal costs are expensed as they are incurred.
Environmental matters
The Company is a party to claims for the cleanup of environmental contamination at certain manufactured gas plant sites, as well as a superfund site. There were no material changes to the Company's environmental matters that were previously reported in the 20202021 Annual Report.
Guarantees
In 2009, multiple sale agreements were signed to sell the Company's ownership interests in the Brazilian Transmission Lines. In connection with the sale, Centennial agreed to guarantee payment of any indemnity obligations of certain of the Company's indirect wholly owned subsidiaries. The remaining guarantee is expected to expire in 2021. The guarantees were required by the buyers as a condition to the sale of the Brazilian Transmission Lines.
Certain subsidiaries of the Company have outstanding guarantees to third parties that guarantee the performance of other subsidiaries of the Company. These guarantees are related to construction contracts, insurance deductibles and loss limits, and certain other guarantees. At June 30, 2021,2022, the fixed maximum amounts guaranteed under these agreements aggregated $171.2aggregate $276.0 million. Certain of the guarantees also have no fixed maximum amounts specified. At June 30, 2021,2022, the amounts of scheduled expiration of the maximum amounts guaranteed under these agreements aggregate to $37.2 million in 2021; $67.7$21.8 million in 2022; $55.6$82.0 million in 2023; $500,000$160.6 million in 2024; $500,000$900,000 in 2025; $700,000$900,000 in 2026; $800,000 thereafter; and $9.0 million, which has no scheduled maturity date. There were 0no amounts outstanding under the previously mentioned guarantees at June 30, 2021.2022. In the event of default under these guarantee obligations, the subsidiary issuing the guarantee for that particular obligation would be required to make payments under its guarantee.
Certain subsidiaries have outstanding letters of credit to third parties related to insurance policies and other agreements, some of which are guaranteed by other subsidiaries of the Company. At June 30, 2021,2022, the fixed maximum amounts guaranteed under these letters of credit aggregated $25.5$28.2 million. At June 30, 2021,2022, the amounts of scheduled expiration of the maximum amounts guaranteed under these letters of credit aggregate to $23.4$27.6 million in 20212022 and $2.1 million$600,000 in 2022.2023. There were 0no amounts outstanding under the previously mentioned letters of credit at June 30, 2021.2022. In the event of default under these letter of credit obligations, the subsidiary guaranteeing the letter of credit would be obligated for reimbursement of payments made under the letter of credit.
In addition, Centennial, Knife River and MDU Construction Services have issued guarantees to third parties related to the routine purchase of maintenance items, materials and lease obligations for which no fixed maximum amounts have been specified. These guarantees have no scheduled maturity date. In the event a subsidiary of the Company defaults under these obligations, Centennial, Knife River or MDU Construction Services would be required to make payments under these guarantees. Any amounts outstanding by subsidiaries of the Company were reflected on the Consolidated Balance Sheet at June 30, 2021.2022.
In the normal course of business, Centennial has surety bonds related to construction contracts and reclamation obligations of its subsidiaries. In the event a subsidiary of Centennial does not fulfill a bonded obligation, Centennial would be responsible to the surety bond company for completion of the bonded contract or obligation. A large portion of the surety bonds is expected to expire within the next 12 months; however, Centennial will likely continue to enter into surety bonds for its subsidiaries in the future. At
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June 30, 2021,2022, approximately $1.1$1.2 billion of surety bonds were outstanding, which were not reflected on the Consolidated Balance Sheet.
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Variable interest entities
The Company evaluates its arrangements and contracts with other entities to determine if they are VIEs and if so, if the Company is the primary beneficiary.
Fuel Contract Coyote Station entered into a coal supply agreement with Coyote Creek that provides for the purchase of coal necessary to supply the coal requirements of the Coyote Station for the period May 2016 through December 2040. Coal purchased under the coal supply agreement is reflected in inventories on the Consolidated Balance Sheets and is recovered from customers as a component of electric fuel and purchased power.
The coal supply agreement creates a variable interest in Coyote Creek due to the transfer of all operating and economic risk to the Coyote Station owners, as the agreement is structured so that the price of the coal will cover all costs of operations, as well as future reclamation costs. The Coyote Station owners are also providing a guarantee of the value of the assets of Coyote Creek as they would be required to buy the assets at book value should they terminate the contract prior to the end of the contract term and are providing a guarantee of the value of the equity of Coyote Creek in that they are required to buy the entity at the end of the contract term at equity value. Although the Company has determined that Coyote Creek is a VIE, the Company has concluded that it is not the primary beneficiary of Coyote Creek because the authority to direct the activities of the entity is shared by the four unrelated owners of the Coyote Station, with no primary beneficiary existing. As a result, Coyote Creek is not required to be consolidated in the Company's financial statements.
At June 30, 2021,2022, the Company's exposure to loss as a result of the Company's involvement with the VIE, based on the Company's ownership percentage, was $32.6$30.5 million.
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Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations
The Company focuses on infrastructure and is Building a Strong America® by providing essential productsinfrastructure and services through its regulated energy delivery and construction materials and services businesses.services. The Company and its employees work hard to keep the economy of the United StatesAmerica moving with the products and services provided, which include powering, heating and connecting homes, factories, offices and stores; and building roads, highways, data infrastructure and airports.
The Company's two-platform business model, regulated energy delivery and construction materials and services, are each comprised of different operating segments. Most of these segments experience seasonality related to the industries in which they operate. The two-platform approach helps balance this seasonality and the risks associated with each type of industry. The Company is authorized to conduct business in 46 statesnearly every state in the United States and during peak timesconstruction season has employed over 15,60016,000 employees. The Company's organic investments are strong drivers of high-quality earnings and continue to be an important part of the Company's growth. Management believes the Company is well positioned in the industries and markets in which it operates.
On August 4, 2022, the Company announced its Board of Directors unanimously approved a plan to pursue a separation of Knife River from the Company. The separation is planned as a tax-free spinoff transaction to the Company’s stockholders for U.S. federal income tax purposes. The transaction is expected to result in two independent, publicly traded and well-capitalized companies.
Completion of the separation will be subject to, among other things, the effectiveness of a registration statement on Form 10 with the SEC, final approval from the Company’s Board of Directors, receipt of a tax opinion and, if determined advisable, a private letter ruling from the IRS, and other customary conditions. The Company continuesmay, at any time and for any reason until the proposed transaction is complete, abandon the separation or modify or change its terms. The separation is expected to effectively execute its strategy while managingbe complete in 2023, but there can be no assurance regarding the ongoing effectsultimate timing of the separation or that the separation will ultimately occur. See Part II, Item 1A. Risk Factors for a description of some of the risks and uncertainties associated with the proposed transaction.
The Company is facing inflationary pressures, including rising commodity prices; rising interest rates; and materials shortages due to foreign conflicts and lasting impacts of the COVID-19 pandemic. In early 2020,Inflation rates in the Unites States have increased significantly, relative to historical precedent, and may continue to rise. Suppliers may continue to raise prices that the Company implementedmay not be able to pass on to its business continuity plans as well as a task forcecustomers. The ability to monitor developmentsraise selling prices to cover higher costs due to inflation are subject to customer demand, industry competition and the availability of materials, among other things. Rising interest rates have resulted in and will likely continue to result in higher borrowing costs on new debt, resulting in impacts to the Company's asset valuations and negatively impacting the purchasing power of its customers.
The construction materials and contracting and construction services businesses have experienced some impacts to earnings related to these pressures, while the pandemic allowing the Companyelectric and natural gas distribution businesses have experienced increased costs related to continue to provide safepurchased natural gas and reliable services during the pandemic. Most of the Company's products and services are considered essential to our country and our communities and, as a result, operations have generally continued throughout the pandemic and reopening of the economy.
In March 2020, the Company took measures to mitigate the risk of COVID-19 transmission by requiring employees that had the capacity to do so to work from home. The Company also enacted additional physical and cybersecurity measures to safeguard systems for remote work locations. As of July 2021, many of these employees have returned to their office; however, some employees have transitioned to a permanent remote work environment.
Certain of the Company's supply vendors are facing production and staffing challenges as they work to achieve production capacity and lead times consistent with pre-pandemic levels. Coupled with other challenges of the pandemic, these vendors are also experiencing strong demand from the residential construction market, some industrial segments and some utility infrastructure investments. In addition, freight markets continue to have challenges with driver shortages; strong demand for consumer goods; extended lead times; and costs for vehicles, driver retention and recruitment.capital expenditures. The Company has implemented measures to proactively order supplies and work with additional suppliers to ensure work continues without delays;minimize the impacts of both supply chain delays and pricing increases; however, the Company has experienced some price increases, disruptions and delays on delivery of certain materials.
materials and cost pressures. The situation surrounding COVID-19 remains fluid. Thereconstruction companies have increased product and bid pricing when possible to incorporate the rising costs experienced. The construction services business has been a trend in many partsalso worked with vendors to secure pricing at the time of bid to mitigate the worldrisk of increasing availabilityprice increases on materials. The electric and administrationnatural gas distribution businesses expect to request recovery of vaccines against COVID-19, as well as an easing of restrictions on individual, business and government activities. The easing of restrictions and the potential for a resurgence in COVID-19 casesincreased costs due to variants of the virus entering the United States, could prompt a return to tighter restrictionsinflation in certain areas of the country. Due to the uncertainty of the economic outlook resulting from the COVID-19 pandemic, thefuture rate cases. The Company continues to monitor the situation closely. Although thereimpact that inflation, rising interest rates, rising commodity prices and supply chain disruptions may have been logisticalon its businesses and other challenges as a result of COVID-19, there were no material adverse impacts on the Company's results of operations for the six months ended June 30, 2021 or 2020. The Company will continue to adjust its business in response to the pandemic while positioning for potential opportunities to enhance its competitive position. For more information specific to each of the Company's business segments, see the following discussions in each business segment's Outlook section.customers. For more information on the possible impacts to the Company's businesses, see the Outlook for each segment below and Part II,I, Item 1A. Risk Factors in this Form 10-Q.the 2021 Annual Report.
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Forward-Looking Statements
The following sections contain forward-looking statements within the meaning of Section 21E of the Exchange Act. Forward-looking statements are all statements other than statements of historical fact, including without limitation those statements that are identified by the words "anticipates," "estimates," "expects," "intends," "plans," "predicts" and similar expressions, and include statements concerning plans, trends, objectives, goals, strategies, future events or performance, and underlying assumptions (many of which are based, in turn, upon further assumptions) and other statements that are other than statements of historical facts. From time to time, the Company may publish or otherwise make available forward-looking statements of this nature, including statements contained within Business Segment Financial and Operating Data.
Forward-looking statements involve risks and uncertainties, which could cause actual results or outcomes to differ materially from those expressed. The Company's expectations, beliefs and projections are expressed in good faith and are believed by the Company to have a reasonable basis, including without limitation, the impact of COVID-19 on the Company's business, management's examination of historical operating trends, data contained in the Company's records and other data available from third parties. Nonetheless, the Company's expectations, beliefs or projections may not be achieved or accomplished and changes in such assumptions and factors could cause actual future results to differ materially.
Any forward-looking statement contained in this document speaks only as of the date on which the statement is made, and the Company undertakes no obligation to update any forward-looking statement or statements to reflect events or circumstances that occur after the date on which the statement is made or to reflect the occurrence of unanticipated events.events, except as required by law. New factors emerge from time to time, and it is not possible for management to predict all the factors, nor can it assess the effect of each factor on the Company's business or the extent to which any factor, or combination of factors, may cause actual results to differ materially from those contained in any forward-looking statement. All forward-looking statements, whether written or oral and whether made by or on behalf of the Company, are expressly qualified by the risk factors and cautionary statements reported in
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Part II, Item 1A. Risk Factors in this Form 10-Q,quarterly report, Part I, Item 1A. Risk Factors in the 20202021 Annual Report and subsequent filings with the SEC.
Consolidated Earnings Overview
The following table summarizes the contribution to the consolidated income by each of the Company's business segments.
Three Months EndedSix Months EndedThree Months EndedSix Months Ended
June 30,June 30,
2021 2020 2021 2020  2022 2021 2022 2021 
(In millions, except per share amounts)(In millions, except per share amounts)
ElectricElectric$10.3 $12.2 $21.0 $23.5 Electric$4.6 $10.3 $15.9 $21.0 
Natural gas distributionNatural gas distribution(.7)(1.0)35.5 31.4 Natural gas distribution(7.5)(.7)28.8 35.5 
PipelinePipeline9.2 9.0 18.1 16.3 Pipeline7.1 9.2 14.5 18.1 
Construction materials and contractingConstruction materials and contracting51.4 53.0 20.6 14.8 Construction materials and contracting32.6 51.4 (7.4)20.6 
Construction servicesConstruction services28.9 27.9 58.7 44.8 Construction services34.5 28.9 55.8 58.7 
OtherOther1.1 (1.3)(1.6)(5.5)Other(.6)1.1 (5.2)(1.6)
Income from continuing operationsIncome from continuing operations100.2 99.8 152.3 125.3 Income from continuing operations70.7 100.2 102.4 152.3 
Loss from discontinued operations, net of tax— (.1)— (.5)
Discontinued operations, net of taxDiscontinued operations, net of tax— — — — 
Net incomeNet income$100.2 $99.7 $152.3 $124.8 Net income$70.7 $100.2 $102.4 $152.3 
Earnings per share - basic:Earnings per share - basic: Earnings per share - basic: 
Income from continuing operationsIncome from continuing operations$.50 $.50 $.76 $.62 Income from continuing operations$.35 $.50 $.50 $.76 
Discontinued operations, net of taxDiscontinued operations, net of tax— — — — Discontinued operations, net of tax— — — — 
Earnings per share - basicEarnings per share - basic$.50 $.50 $.76 $.62 Earnings per share - basic$.35 $.50 $.50 $.76 
Earnings per share - diluted:Earnings per share - diluted: Earnings per share - diluted: 
Income from continuing operationsIncome from continuing operations$.50 $.50 $.76 $.62 Income from continuing operations$.35 $.50 $.50 $.76 
Discontinued operations, net of taxDiscontinued operations, net of tax— — — — Discontinued operations, net of tax— — — — 
Earnings per share - dilutedEarnings per share - diluted$.50 $.50 $.76 $.62 Earnings per share - diluted$.35 $.50 $.50 $.76 
Three Months Ended June 30, 2021,2022, Compared to Three Months Ended June 30, 20202021 The Company's consolidated earnings increased $500,000.decreased $29.5 million.
Positively impacting the Company's earnings were favorable income tax adjustments related to the Company's consolidated annualized estimated tax rate included in Other. The construction servicesmaterials and contracting business experienced higher inside specialtyincreased contracting workloads as a result of increased demand for manufacturing projects as well as increased equipment sales and leasing of power line equipment.higher average pricing, while results were negatively impacted by inflationary pressures, including higher diesel fuel, materials, labor and production costs. The natural gas distribution business benefited from approved rate relief in certain jurisdictions, partially offsetexperienced an increased seasonal loss driven by higher operationoperating expenses, primarily due to increases in subcontractor costs, software expenses and maintenance expenses,vehicle fuel costs, as well as higher depreciation expense. The electric business experienced decreased commercial and residential retail sales volumes because of cooler weather and the pipeline business benefited from higherexperienced lower non-regulated project revenues.margins and higher interest expense, partially offset by the net benefit of the North Bakken Expansion project. The Company's earnings were further impacted by $12.1 million in lower returns on the Company's nonqualified benefit plan investments, as discussed in Note 14. Partially offsetting these increasesdecreases were higher payroll-related costs, largely stock-based compensation expenseoverall workloads for electrical and health care costs, across all ofmechanical services at the Company's businesses.
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construction services business, primarily in the data center, hospitality and commercial facilities sectors.
Six Months Ended June 30, 2021,2022, Compared to Six Months Ended June 30, 20202021 The Company's consolidated earnings increased $27.5 million or 22 percent.decreased $49.9 million.
The Company's earnings were positively impacted by increasedCompany experienced decreased earnings across mostall of the Company's businesses. The construction services business experienced an increase in gross margin as a result of higher inside specialty contracting workloads resulting from increased demand for manufacturing projects as well as increased equipment sales and leasing of power line equipment. In addition,While the absence of an out-of-period adjustment in 2021 of approximately $6.7 million, net of tax, to correct the revenue recognition on a construction contract during 2020 at the construction services business contributed to the increase in earnings. The construction materials and contracting business experienced an increase in gross margin as well, resulting from higher realized material revenuesaverage pricing and marginsincreased contracting workloads, results were negatively impacted by inflationary pressures, including higher diesel fuel, repair and higher contracting bid margins.maintenance, materials, labor and production costs. The natural gas distribution business benefited from approved rate relief in certain jurisdictions,experienced higher operating expenses, including subcontractor costs and depreciation expense, partially offset by higher operationincreased sales volumes and maintenance expenses. The pipeline business also experienced increased storage-related and non-regulated project revenues resultingapproved rate recovery in a positive impact to earnings. Favorable income tax adjustmentscertain jurisdictions. Increased operating costs related to the Company's consolidated annualized estimated tax rate had a positive impact on Other. Partially offsetting these increases wereplanned maintenance outage at Coyote Station along with lower per unit average rates decreased earnings at the electric business. The pipeline business experienced lower non-regulated project margins and higher interest expense, partially offset by the net benefit of the North Bakken Expansion project. The decrease in earnings at the construction services business was largely resulting from higher operationdriven by increased selling, general and maintenanceadministrative expenses and depreciation, depletionlower industrial, institutional and amortization costs,utility margins, partially offset by higher commercial, renewable and increased payroll-related costs across all ofservice margins. The Company's earnings were further impacted by $18.3 million in lower returns on the Company's businesses, largely stock-based compensation expense and health care costs.nonqualified benefit plan investments, as discussed in Note 14.
A discussion of key financial data from the Company's business segments follows.
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Business Segment Financial and Operating Data
The following sections include key financial and operating data for each of the Company's business segments. Also included are highlights on key growth strategies, projections and certain assumptions for the Company and its subsidiaries and other matters of the Company's business segments.
For information pertinent to various commitments and contingencies, see the Notes to Consolidated Financial Statements. For a summary of the Company's business segments, see Note 17 of the Notes to Consolidated Financial Statements.
Electric and Natural Gas Distribution
Strategy and challenges The electric and natural gas distribution segments provide electric and natural gas distribution services to customers, as discussed in Note 17. Both segments strive to be top performing utility companies measured by integrity, employee safety and satisfaction, customer service and shareholder return, while providingstockholder return. The segments provide safe, reliable, competitively priced and environmentally responsible reliableenergy service to customers while focusing on growth and competitively priced energyexpansion opportunities within and related services to customers.beyond its existing territories. The Company is focused on cultivating organic growth while managing operating costs and monitoring opportunities for these segments to retain, grow and expand their customer base through extensions of existing operations, including building and upgrading electric generation, transmission and distribution, and natural gas systems, and through selected acquisitions of companies and properties with similar operating and growth objectives at prices that will provide stable cash flows and an opportunity to earn a competitive return on investment. The continued efforts to create operational improvements and efficiencies across both segments promotes the Company's business integration strategy. The primary factors that impact the results of these segments are the ability to earn authorized rates of return, the cost of natural gas, cost of electric fuel and purchased power, weather, climate change initiatives, competitive factors in the energy industry, population growth and economic conditions in the segments' service areas.
The electric and natural gas distribution segments are subject to extensive regulation in the jurisdictions where they conduct operations with respect to costs, timely recovery of investments and permitted returns on investment, as well as certain operational, environmental and system integrity regulations. To date, many states have enacted, and others are considering, mandatory clean energy standards requiring utilities to meet certain thresholds of renewable energy generation. Federal legislation for clean energy standards and GHG emissions has been considered and may be implemented in the near future. The current presidential administration has also made climate change a focus during the first half of 2021. Over the long-term, the Company expects overall electric demand to be positively impacted by higher demand resulting from increased electrification trends, including electric vehicle adoption, as a means to address economy-wide carbon emission concerns and changing customer conservation patterns. These initiatives could result in increased costs to produce electricity and procure natural gas. To date, the impact of these initiatives on the Company is unknown. The Company will continue to monitor the progress of these initiatives and assess the potential impacts they may have on its stakeholders, business processes, results of operations, cash flows and disclosures.
investment. The Company is focused on modernizing utility infrastructure to meet the varied energy needs of both its customers and communities while ensuring the delivery of safe, reliable, affordable and environmentally responsible reliable and affordable energy. The segments continue to invest in facility upgrades to be in compliance with existing and known future regulations. To assist in the reduction of regulatory lag in obtaining revenue increases to align with increased investments, tracking mechanisms have been implemented in certain jurisdictions,jurisdictions. The Company also seeks rate adjustments for operating costs and capital investments, as well as reasonable returns on investments, not covered by tracking mechanisms. For more information on the Company's tracking mechanisms and recent cases, see Note 19 and the 2021 Annual Report.
These segments are also subject to extensive regulation related to certain operational and environmental compliance, cybersecurity, permit terms and system integrity. Both segments are faced with the ongoing need to actively evaluate cybersecurity processes and procedures related to its transmission and distribution systems for opportunities to further strengthen its cybersecurity protections. Implementation of enhancements and additional requirements is ongoing.
To date, many states have enacted and others are considering, mandatory clean energy standards requiring utilities to meet certain thresholds of renewable and/or carbon-free energy supply. The current presidential administration has made climate change a focus, as further discussed in Note 19the Outlook section. Over the long-term, the Company expects overall electric demand to be positively impacted by increased electrification trends, including electric vehicle adoption, as a means to address economy-wide carbon emission concerns and changing customer conservation patterns. MISO and NERC have recently announced concerns with reliability of the 2020 Annual Report.
In September 2019, the PHMSA issued a rule for additional regulationselectric grid due to strengthen the safetycapacity shortages, which has resulted from rapid expansion of natural gas transmissionrenewables and storage facilities and hazardous liquid pipelines. The natural gas segment has implemented procedure changes for both the initial requirements and the additional requirements effective July 1, 2021.
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State implementationrapid reduction of pollution control plans to improve visibility at Class I areas,baseload resources such as national parks, undercoal, while load growth has increased faster than expected. These changes could result in increased costs to produce electricity and procure natural gas. The impact of these changes on the EPA's Regional Haze Rule could requireCompany is unknown. The Company will continue to monitor the ownersprogress of Coyote Station to incur significant new costs. Ifthese changes and assess the owners decide to incur such costs, the costs could, dependentpotential impacts they may have on determination by state regulatory commissions on approval to recover such costs from customers, negatively impact the Company'sits stakeholders, business processes, results of operations, financial positioncash flows and cash flows. The NDDEQ plans to draft a state implementation plan and share its controls selection with federal land managers of the National Park Service, the United States Fish and Wildlife Service and the United States Forest Service prior to submitting the plan to the EPA. The emissions modeling being conducted for the combined western state agencies affected by the Regional Haze Rule was delayed and has subsequently delayed the NDDEQ drafting of a state implementation plan. Therefore, the NDDEQ's state implementation plan, which was due to the EPA by July 2021, is anticipated to be submitted during the second half of 2021. Additionally, the Company is one of four owners of Coyote Station and cannot make a unilateral decision on the plant's future. The Company could be negatively impacted by the decisions of the other owners.disclosures.
Revenues are impacted by both customer growth and usage, the latter of which is primarily impacted by weather, as well as impacts associated with commercial and industrial slow-downs, including economic recessions, and energy efficiencies. During 2020, the Company experienced higher usage from residential customers and lower usage from commercial customers as a result of the COVID-19 pandemic. Customer usage has started to shift back to pre-pandemic levels in 2021. Very cold winters increase demand for natural gas and to a lesser extent, electricity, while warmer than normal summers increase demand for electricity, especially among residential and commercial customers. Average consumption among both electric and natural gas customers has tended to decline as more efficient appliances and furnaces are installed, and as the Company has implemented conservation programs. Natural gas weather normalization and decoupling mechanisms in certain jurisdictions have been implemented to largely mitigate the effect that would otherwise be caused by variations in volumes sold to these customers due to weather and changing consumption patterns on the Company's distribution margins.
In February 2021, a prolonged period of unseasonably cold temperatures in the central United States significantly increased the demand for electric and natural gas services and contributed to increased market prices. The Company's transmission settlement process with SPP helped offset the increased energy costs to electric customers during the cold weather event. Further, in some jurisdictions the Company utilized natural gas in storage to lessen the impact of high natural gas costs. Overall, Montana-Dakota and Great Plains incurred approximately $44.0 million in increased natural gas costs in February 2021 in order to maintain services for its customers. These extraordinary natural gas costs were recorded as regulatory assets as they are expected to be recovered from customers. Montana-Dakota and Great Plains have filed out-of-cycle purchased gas adjustment requests in four out of five jurisdictions affected by this cold-weather event and have received approval in three jurisdictions. The Company will continue to engage with its regulators to determine the appropriate recovery periods over which to recover the associated natural gas costs. For a discussion of the Company's most recent cases by jurisdiction, see Note 19.
The electric and natural gas distribution segments are facingcontinue to face increased pricing and lead times on delivery of certain raw materials and equipment used in electric transmission and distribution system and natural gas pipeline projects. Long lead times are attributable to increased demand for steel products from pipeline companies as they continue pipeline system safety and integrity replacement projects driven by PHMSA regulations, as well as delays in the manufacturing and shipping of electrical equipment as a result of the COVID-19 pandemic including delays in trucking times and issuance of permits for large and heavy loads.subsequent supply chain issues. In addition, the segments are currently experiencing increased fuel costs as well as other general inflationary pressures. The Company continues to monitor these risks and
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has practices in place to minimize the materialimpacts of long lead times and ismaterials pricing such as working with manufacturers to proactively order suchimpacted materials, as well as working with additional suppliers. While not material, these segments have experienced delays and inflationary pressures, including increased costs related to help mitigatepurchased natural gas and capital expenditures. The Company expects these delays and inflationary pressures to continue throughout at least the riskremainder of any delays due to extended lead times.2022.
The ability to grow through acquisitions is subject to significant competition and acquisition premiums. In addition, the ability of the segments to grow their service territory and customer base is affected by regulatory constraints, the economic environment of the markets served and competition from other energy providers and fuels. As the industry continues to expand the use of renewable energy sources, the need for additional transmission is growing. On July 25, 2022, as part of its long range transmission plan, MISO announced approval of 18 transmission projects totaling $10.3 billion of investments in MISO's midwest subregion, of which Montana-Dakota is a part. The Company intends to pursue the available opportunities associated with MISO's plan. The construction of any new electric generating facilities, transmission lines and other service facilities is subject to increasing costs and lead times, extensive permitting procedures, and federal and state legislative and regulatory initiatives, which will likelymay necessitate increases in electric energy prices.
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Earnings overview - The following information summarizes the performance of the electric segment.
Three Months EndedSix Months EndedThree Months EndedSix Months Ended
June 30,June 30,June 30,June 30,
2021 2020 Variance2021 2020 Variance 2022 2021 Variance2022 2021 Variance
(In millions)(In millions)
Operating revenuesOperating revenues$83.8 $76.6 %$168.6 $162.7 %Operating revenues$85.5 $83.8 %$179.3 $168.6 %
Operating expenses:Operating expenses:  
Electric fuel and purchased powerElectric fuel and purchased power18.1 14.6 24 %36.7 35.1 %Electric fuel and purchased power21.9 18.1 21 %48.3 36.7 32 %
Taxes, other than income.2 .1 100 %.4 .3 33 %
Adjusted gross margin65.5 61.9 %131.5 127.3 %
Operating expenses:  
Operation and maintenanceOperation and maintenance31.3 29.0 %62.6 59.7 %Operation and maintenance31.5 31.3 %62.3 62.6 — %
Depreciation, depletion and amortizationDepreciation, depletion and amortization16.9 15.7 %33.0 31.3 %Depreciation, depletion and amortization19.4 16.9 15 %36.3 33.0 10 %
Taxes, other than incomeTaxes, other than income4.5 4.4 %9.2 8.7 %Taxes, other than income4.4 4.7 (6)%9.1 9.6 (5)%
Total operating expensesTotal operating expenses52.7 49.1 %104.8 99.7 %Total operating expenses77.2 71.0 %156.0 141.9 10 %
Operating incomeOperating income12.8 12.8 — %26.7 27.6 (3)%Operating income8.3 12.8 (35)%23.3 26.7 (13)%
Other income1.6 2.5 (36)%2.2 2.1 %
Other income (expense)Other income (expense)(1.0)1.6 (163)%(1.2)2.2 (155)%
Interest expenseInterest expense6.6 6.8 (3)%13.2 13.6 (3)%Interest expense7.0 6.6 %14.0 13.2 %
Income before income taxesIncome before income taxes7.8 8.5 (8)%15.7 16.1 (2)%Income before income taxes.3 7.8 (96)%8.1 15.7 (48)%
Income tax benefitIncome tax benefit(2.5)(3.7)32 %(5.3)(7.4)28 %Income tax benefit(4.3)(2.5)72 %(7.8)(5.3)47 %
Net incomeNet income$10.3 $12.2 (15)%$21.0 $23.5 (11)%Net income$4.6 $10.3 (55)%$15.9 $21.0 (25)%
Operating statisticsOperating statisticsThree Months EndedSix Months EndedOperating statisticsThree Months EndedSix Months Ended
June 30,June 30,
2021 2020 2021 2020 2022 2021 2022 2021 
Retail sales (million kWh):
Revenues (millions)Revenues (millions)
Retail sales:Retail sales:
ResidentialResidential$28.8 $28.7 $64.0 $60.6 
CommercialCommercial33.3 33.1 66.9 64.5 
IndustrialIndustrial10.7 10.1 20.5 19.7 
OtherOther1.8 1.8 3.4 3.3 
74.6 73.7 154.8 148.1 
Transportation and otherTransportation and other10.9 10.1 24.5 20.5 
$85.5 $83.8 $179.3 $168.6 
Volumes (million kWh)Volumes (million kWh)
Retail Sales:Retail Sales:
ResidentialResidential254.1 257.7 589.0 588.3 Residential244.1 254.1 601.8 589.0 
CommercialCommercial347.1 323.7 708.9 699.5 Commercial329.3 347.1 693.4 708.9 
IndustrialIndustrial144.1 115.9 288.6 268.9 Industrial147.7 144.1 288.0 288.6 
OtherOther22.1 20.4 41.3 40.8 Other20.6 22.1 40.1 41.3 
767.4 717.7 1,627.8 1,597.5 741.7 767.4 1,623.3 1,627.8 
Average cost of electric fuel and purchased power per kWhAverage cost of electric fuel and purchased power per kWh$.022 $.019 $.021 $.020 Average cost of electric fuel and purchased power per kWh$.028 $.022 $.028 $.021 
Adjusted gross margin is a non-GAAP financial measure. For additional information and reconciliation of the non-GAAP adjusted gross margin attributable to the electric segment, see the Non-GAAP Financial Measures section later in this Item.
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Three Months Ended June 30, 2021,2022, Compared to Three Months Ended June 30, 20202021 Electric earnings decreased $1.9$5.7 million as a result of:
Adjusted gross margin: IncreaseRevenue increased $1.7 million.
Largely due to:
Higher electric fuel and purchased power costs of $3.6$3.8 million partiallyrecovered in customer rates that were offset in expense, as described below.
Higher net transmission revenues of $900,000.
Partially offset by:
Lower renewable tracker revenues, largely due to higher production tax credits of $1.5 million.
Lower retail sales volumes of 6.93.4 percent, primarily commercial and residential retail sales as a result of cooler weather.
Lower per unit average rates of $400,000.
Electric fuel and purchased power increased $3.8 million.
Primarily the result of higher MISO costs of $5.7 million as a result of increased industrial and commercial sales volumes, offset in part by lower residential sales volumes as the impacts of the COVID-19 pandemic begin to reverse and individuals return to the office and businesses reopen, and higher demand revenues of $1.2 million. Also positively impacting adjusted gross margin were higher revenues associated with transmission interconnect upgrades of $1.0 million and higher renewable tracker revenues resulting from lower production tax credits, as discussed later.energy costs.
Operation and maintenance: Increase of $2.3 million, largely resulting from increased payroll-related costs of $800,000, largely stock-based compensation expense and health care costs; contract services of $600,000; expenses for new software of $400,000 and other miscellaneous expenses. Partially offsetting these increases wereoffset by decreased bad debt expense of $400,000 as a result of the collection process and arrears balances being largely back to pre-pandemic levels and decreased operatingfuel costs associated with the electric generating unit retired on March 31, 2021,Heskett Station and Lewis & Clark Station plant closures.
Operation and maintenance was comparable to the same period in the prior year. Increased contract service costs associated with a planned outage at Coyote Station were mostly offset by decreased payroll-related costs, largely due to plant closures, as previously discussed, and lower stock-based compensation expense.
Depreciation, depletion and amortization increased $2.5 million, primarily due to increased amortization of plant retirement and closure costs recovered in operating revenues, as discussed in Note 13.
Depreciation, depletion and amortization:Increase of $1.2 million due in part to the amortization of plant retirement and closure costs, as discussed in Note 13.
Taxes, other than income: Comparableincome were comparable to the same period in the prior year.
Other income: Decrease of $900,000income (expense) decreased $2.6 million, directly resulting from lower returns on certain of the Company's nonqualified benefit plan investments.investments, as discussed in Note 14.
Interest expense:expense increased $400,000, as a result of higher long-term debt balances from debt issued in 2021.
Income tax benefit increased $1.8 million.
Largely due to:
Lower income before income taxes.
Higher production tax credits driven by higher wind production.
Partially offset by lower permanent tax adjustments.
Six Months Ended June 30, 2022, Compared to Six Months Ended June 30, 2021 ComparableElectric earnings decreased $5.1 million as a result of:
Revenue increased $10.7 million.
Largely due to:
Higher fuel and purchased power costs of $11.6 million recovered in customer rates that were offset in expense, as described below.
Higher transmission revenues, primarily from higher net transmission of $1.7 million and higher transmission interconnect upgrades of $400,000.
Partially offset by:
Lower renewable tracker revenues associated with higher production tax credits.
Lower per unit average rates of $1.4 million.
Electric fuel and purchased power increased $11.6 million.
Primarily the result of higher MISO costs of $14.9 million as a result of increased energy costs.
Partially offset by decreased fuel costs associated with the Heskett Station and Lewis & Clark Station plant closures.
Operation and maintenance was comparable to the same period in the prior year. Increased contract service costs associated with a planned outage at Coyote Station were mostly offset by decreased payroll-related costs, largely due to plant closures, as previously discussed.
Income tax benefit: Decrease of $1.2Depreciation, depletion and amortization increased $3.3 million, primarily lower production tax creditsdue to:
Increased amortization of plant retirement and closure costs of $2.8 million recovered in operating revenues, as discussed in Note 13.
Increased property, plant and equipment balances placed in service, largely related to less wind generationgrowth and replacement projects.
Taxes, other than income decreased $500,000 due to lower coal conversion taxes in certain jurisdictions.
Other income (expense) decreased $3.4 million.
Largely lower returns on the expirationCompany's nonqualified benefit plan investments of a 10-year credit-qualifying period on certain facilities.$3.8 million, as discussed in Note 14.
Partially offset by higher AFUDC largely due to higher rates.
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Six Months Ended June 30, 2021, Compared to Six Months Ended June 30, 2020 Electric earnings decreased $2.5 million as a result of:Interest expense increased $800,000, largely resulting from higher long-term debt balances from debt issued in 2021.
Adjusted gross margin: Increase of $4.2 million, primarilyIncome tax benefit increased $2.5 million.
Largely due to an increase in revenues. The revenue increase was driven by transmission interconnect upgrades of $1.5 million; $1.2 million higher transmission revenues, due equally to increased revenues from SPP as the result of a FERC settlement and higher tracker revenues as a result of more transmission assets; higher demand revenue of $800,000; and higher renewable tracker revenues of $400,000 as a result of lowerto:
Higher production tax credits as discussed later. Adjusted gross margin was also positively impacted by an increase in retail sales volumes of 1.9 percent due to increased industrial and commercial retail sales volumes as the impacts of the COVID-19 pandemic begin to reverse and businesses reopen.
Operation and maintenance: Increase of $2.9 million, resulting from increased payroll-related costs of $1.9 million largely stock-based compensation expense and health care costs, higher expenses for new software of $300,000 and other miscellaneous expenses. Partially offsetting these increases were decreased bad debt expense of $400,000 as a result of the collection process and arrears balances being largely back to pre-pandemic levels and decreased operating costs associated with the electric generating unit retired on March 31, 2021, as discussed in Note 13.
Depreciation, depletion and amortization:Increase of $1.7 million largely resulting from increased property, plant and equipment balances primarily related to transmission projects placed in service and the amortization of plant retirement and closure costs, as discussed in Note 13.
Taxes, other than income: Increase of $500,000, driven by higher property taxes in certain jurisdictions of $400,000 and higher payroll taxes resulting from increased payroll-related costs.wind production.
Other income: Comparable to the same period in the prior year.Lower income before income taxes.
Interest expense: DecreasePartially offset by lower permanent tax adjustments and excess deferred tax amortization of $400,000, due to lower interest rates.
Income tax benefit: Decrease of $2.1 million, primarily lower production tax credits related to the expiration of a 10-year credit-qualifying period on certain facilities and less wind generation.$400,000.
Earnings overview - The following information summarizes the performance of the natural gas distribution segment.
Three Months EndedSix Months EndedThree Months EndedSix Months Ended
June 30,June 30,June 30,June 30,
2021 2020 Variance2021 2020 Variance 2022 2021 Variance2022 2021 Variance
(In millions)(In millions)
Operating revenuesOperating revenues$153.9 $141.7 %$504.3 $468.3 %Operating revenues$210.6 $153.9 37 %$661.1 $504.3 31 %
Operating expenses:Operating expenses:  
Purchased natural gas soldPurchased natural gas sold70.9 64.6 10 %273.1 255.2 %Purchased natural gas sold122.7 70.9 73 %415.9 273.1 52 %
Taxes, other than income6.4 6.3 %20.3 19.4 %
Adjusted gross margin76.6 70.8 %210.9 193.7 %
Operating expenses:  
Operation and maintenanceOperation and maintenance46.0 43.1 %97.2 89.1 %Operation and maintenance50.8 46.0 10 %105.0 97.2 %
Depreciation, depletion and amortizationDepreciation, depletion and amortization20.3 21.0 (3)%42.7 41.8 %Depreciation, depletion and amortization22.4 20.3 10 %44.7 42.7 %
Taxes, other than incomeTaxes, other than income6.7 6.0 12 %13.8 12.1 14 %Taxes, other than income15.3 13.1 17 %39.9 34.1 17 %
Total operating expensesTotal operating expenses73.0 70.1 %153.7 143.0 %Total operating expenses211.2 150.3 41 %605.5 447.1 35 %
Operating income3.6 .7 NM57.2 50.7 13 %
Other income2.4 4.1 (41)%4.0 4.4 (9)%
Operating income (loss)Operating income (loss)(.6)3.6 (117)%55.6 57.2 (3)%
Other income (expense)Other income (expense)(.7)2.4 (129)%(1.1)4.0 (128)%
Interest expenseInterest expense9.1 9.0 %18.2 18.1 %Interest expense9.7 9.1 %19.2 18.2 %
Income (loss) before income taxesIncome (loss) before income taxes(3.1)(4.2)26 %43.0 37.0 16 %Income (loss) before income taxes(11.0)(3.1)255 %35.3 43.0 (18)%
Income tax (benefit) expenseIncome tax (benefit) expense(2.4)(3.2)25 %7.5 5.6 34 %Income tax (benefit) expense(3.5)(2.4)46 %6.5 7.5 (13)%
Net income (loss)Net income (loss)$(.7)$(1.0)26 %$35.5 $31.4 13 %Net income (loss)$(7.5)$(.7)960 %$28.8 $35.5 (19)%
*NM - not meaningful
Operating statisticsThree Months EndedSix Months Ended
June 30,June 30,
2022 2021 2022 2021 
Revenues (millions)
Retail sales:
Residential$115.1 $84.8 $373.6 $288.7 
Commercial71.1 48.3 233.8 168.9 
Industrial9.0 6.2 22.0 15.1 
195.2 139.3 629.4 472.7 
Transportation and other15.4 14.6 31.7 31.6 
$210.6 $153.9 $661.1 $504.3 
Volumes (MMdk)
Retail sales:
Residential11.8 9.0 42.8 37.8 
Commercial8.2 6.5 28.7 25.1 
Industrial1.2 1.1 3.0 2.6 
21.2 16.6 74.5 65.5 
Transportation sales:
Commercial.4 .4 1.1 1.1 
Industrial34.9 38.9 75.9 82.8 
35.3 39.3 77.0 83.9 
Total throughput56.5 55.9 151.5 149.4 
Average cost of natural gas per dk$5.80 $4.26 $5.58 $4.17 
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Operating statisticsThree Months EndedSix Months Ended
June 30,June 30,
2021 2020 2021 2020 
Volumes (MMdk)
Retail sales:
Residential9.0 9.7 37.8 37.4 
Commercial6.5 6.3 25.1 25.1 
Industrial1.1 1.0 2.6 2.5 
16.6 17.0 65.5 65.0 
Transportation sales:
Commercial.4 .4 1.1 1.1 
Industrial38.9 30.2 82.8 75.8 
39.3 30.6 83.9 76.9 
Total throughput55.9 47.6 149.4 141.9 
Average cost of natural gas per dk$4.26 $3.81 $4.17 $3.93 
Adjusted gross margin is a non-GAAP financial measure. For additional information and reconciliation of the non-GAAP adjusted gross margin attributable to the natural gas distribution segment, see the Non-GAAP Financial Measures section later in this Item.
Three Months Ended June 30, 2021,2022, Compared to Three Months Ended June 30, 20202021 Natural gas distribution's seasonal loss decreased $300,000increased $6.8 million as a result of:
Adjusted gross margin: IncreaseOperating revenues increased $56.7 million, largely resulting from:
Higher purchased natural gas sold of $5.8$51.8 million recovered in customer rates that was offset in expense, as a result of approved rate relief in certain jurisdictions of $3.3 million, increased transportation revenues of $1.0 million due to higher volumes to electric generation customers and higher basic service charge of $500,000 due to customer growth. Lowerdescribed below.
Higher retail sales volumes of approximately 2.127.2 percent primarilyacross all customer classes due to residential customers, werecolder weather, partially offset by weather normalization and decoupling mechanisms.mechanisms in certain jurisdictions.
Operation and maintenance: IncreaseHigher revenue-based taxes recovered in rates of $2.9$2.1 million that were offset in expense, as described below.
Higher rate recovery under pipeline replacement mechanisms in certain jurisdictions.
Purchased natural gas sold increased $51.8 million, primarily due to:
Higher natural gas costs as a result of higher market prices of $32.5 million, including the higher recovery of purchased gas adjustments related to the February 2021 cold weather event and the 2018 Enbridge pipeline rupture.
Higher volumes of natural gas purchased of $19.3 million.
Operation and maintenance increased $4.8 million due to:
Increased contract services of $1.7 million, primarily higher payroll-relatedsubcontractor costs.
Higher software costs of $2.6 million, largely$600,000.
Higher vehicle fuel costs.
Payroll-related costs were comparable with lower stock-based compensation expense and health care costs, andoffset by higher expenses for new software.straight-time payroll.
Depreciation, depletion and amortization:amortization increased $2.1 million, primarily resulting from:
DecreaseIncreased property, plant and equipment balances from growth and replacement projects placed in service.
The absence of $700,000, resulting from decreased depreciation rates in certain jurisdictions in 2021.
Taxes, other than income increased $2.2 million resulting from higher revenue-based taxes being recovered in rates.
Other income (expense) decreased $3.1 million, largely the result of lower returns on the Company's nonqualified benefit plan investments, as discussed in Note 14.
Interest expense increased $600,000, primarily due to higher long-term debt balances from debt issued in 2022 and 2021 and higher interest rates.
Income tax benefit increased $1.1 million as a result of an increased seasonal loss.
Six Months Ended June 30, 2022, Compared to Six Months Ended June 30, 2021 Natural gas distribution's earnings decreased $6.7 million as a result of:
Operating revenues increased $156.8 million, largely resulting from:
Higher purchased natural gas sold of $142.8 million recovered in customer rates that was offset in expense, as described below.
Higher revenue-based taxes recovered in rates of $5.8 million that were offset in expense, as described below.
Higher retail sales volumes of approximately 13.6 percent across all customer classes, partially offset by weather normalization and decoupling mechanisms in certain jurisdictions.
Higher pipeline replacement mechanisms of $1.2 million, as well as approved rate relief of $1.0 million.
Purchased natural gas sold increased $142.8 million, primarily due to:
Higher natural gas costs as a result of higher market prices of $105.6 million, including the higher recovery of purchased gas adjustments related to the February 2021 cold weather event and the 2018 Enbridge pipeline rupture.
Higher volumes of natural gas purchased of $37.2 million.
Operation and maintenance increased $7.8 million, due to:
Increased contract services of $2.8 million, primarily higher subcontractor costs.
Higher software costs of $1.5 million.
Higher payroll-related costs, largely higher straight-time payroll, offset in part by lower stock-based compensation expense.
Depreciation, depletion and amortization increased $2.0 million partially offset byfrom increased property, plant and equipment balances from growth and replacement projects placed in service.
Taxes, other than income: Increase of $700,000, driven byincome increased $5.8 million resulting from higher propertyrevenue-based taxes being recovered in certain jurisdictions.rates.
Other income: Decrease of $1.7income (expense) decreased $5.1 million, as aprimarily the result of lower returns on certain of the Company's nonqualified benefit plan investments, of $1.4 million and decreased interest income related to the recovery of purchased gas adjustment balances.as discussed in Note 14.
Interest expense: Comparable to the same period in the prior year.
Income tax benefit: Decrease of $800,000, due to lower permanent tax adjustments and a decrease in the seasonal loss before income taxes.
Six Months Ended June 30, 2021, Compared to Six Months Ended June 30, 2020 Natural gas distribution earningsexpense increased $4.1 million as a result of:
Adjusted gross margin: Increase of $17.2 million, as a result of approved rate relief in certain jurisdictions of $9.0 million; $4.6 million due to increased retail sales volumes of approximately 0.8 percent across all customer classes, including the benefit of weather normalization and decoupling mechanisms in certain jurisdictions; increased transportation revenues of $1.6 million due to higher volumes to electric generation customers; and higher non-regulated revenues.
Operation and maintenance: Increase of $8.1$1.0 million, primarily due to higher payroll-related costs of $5.4long-term debt balances from debt issued in 2022 and 2021 and higher interest rates.
Income tax expense decreased $1.0 million, largely stock-based compensation expense and health care costs; decreased credits for costs associated with the installation of meters partially from delaying meter replacements for safety measures implemented as a result of the COVID-19 pandemic of $1.4 million; and higher expenses for new software.
Depreciation, depletion and amortization: Increase of $900,000, resulting from increased property, plant and equipment balances from growth and replacement projects placed in service, partially offset by decreased depreciation rates in certain jurisdictions of $2.0 million.
Taxes, other than income: Increase of $1.7 million, due in part to higher property taxes in certain jurisdictions of $1.2 million, as well as higher payroll taxes driven by increased payroll-related costs.
Other income: Decrease of $400,000 driven by decreased interestlower income related to the recovery of purchased gas adjustment balances of $1.0 million, partially offset by higher returns on certain of the Company's benefit plan investments.before income taxes.
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Interest expense: Comparable to the same period in the prior year.
Income tax expense: Increase of $1.9 million, primarily due to an increase in income before income taxes.
Outlook The Company continues to assess the impacts of the COVID-19 pandemic on its operations and is committed to providing safe and reliable service while ensuring the health and safety of its employees, customers and the communities in which it operates. In 2020, the Company instituted certain measures to help protect its employees from exposure to COVID-19 and to curb potential spread of the virus in customer homes and facilities, including suspension of disconnects due to nonpayment of bills, and continues to adjust and reduce these measures in 2021. In April 2020, the Company waived late payment fees to help customers experiencing financial hardships. As of January 1, 2021, the Company reinstated disconnects and late payment fees to certain customer classes in seven of its eight states of operation. The disconnect process for the remaining customers is expected to resume in the second half of 2021. As a consequence of the suspended disconnects and waived late fees, the Company's cash flows and collection of receivables have been affected but impacts have not been material. The Company experienced some impacts to its commercial and industrial electric and natural gas loads associated with reduced economic activity due to the COVID-19 pandemic and oil price impacts, as further discussed below, which has begun to transition back to historic levels. In 2021, the Company started to scale back certain restrictions put in place in response to the COVID-19 pandemic, including employee travel and temporary delays in non-essential training for employees. The Company filed requests for the use of deferred accounting for costs related to the COVID-19 pandemic in all of the jurisdictions in which it operates and has since withdrawn its applications in two of those jurisdictions. The Company has deferred an immaterial amount of costs related to the pandemic to date.
The Company expects these segments will grow rate base by approximately 5 percent annually over the next five years on a compound basis. Operations are spread across eight states where the Company expects customer growth to be higher than the national average. In 2020, these segments experienced retail customer growth of approximately 1.8 percent and theThe Company expects customer growth to continue to average 1 percent to 2 percent per year.year and as of June 30, 2022, these segments experienced retail customer growth of approximately 1.6 percent. This customer growth, along with system upgrades and replacements needed to supply safe and reliable service, will require investments in new and replacement electric and natural gas systems. On July 1, 2021, the Company filed in North Dakota, and provided a courtesy copy to South Dakota, an integrated resource plan for the electric segment, which included the Company's plans for future resources to meet customer demand.
These segments are exposed to energy price volatility and may be impacted by changes in oil and natural gas exploration and production activity. Rate schedules in the jurisdictions in which the Company's natural gas distribution segment operates contain clauses that permit the Company to file for rate adjustments for changes in the cost of purchased natural gas. Although changes in the price of natural gas are passed through to customers and have minimal impact on the Company's earnings, the natural gas distribution segment's customers benefit from lower natural gas prices through the Company's utilization of storage and fixed price contracts. During the last half of 2021 and the first half of 2022, the Company experienced increased natural gas prices and expects this trend to continue through the next winter heating season due to the increase in demand outpacing the supply along with the impact of global events. As a result, the Company has filed an out-of-cycle cost of gas adjustment in Idaho to assist in the timely recovery of these costs. See Note 19 for additional details. The Company continueswill continue to monitor natural gas prices, as well as oil and natural gas production levels.
In February 2019, the Company announced the retirement of three aging coal-fired electric generating units, resulting from the Company's analysis showing that the plants are no longer expected to be cost competitive for customers. The Company ceased operations on March 31, 2021, of Unit 1 at Lewis & Clark Station in Sidney, Montana. The Company has completed pre-decommissioning activitiesMontana, in March 2021 and commenced decommissioning of Unit 1 at Lewis & Clark in July 2021. The retirement of Units 1 and 2 at Heskett Station near Mandan, North Dakota, is expected in earlyFebruary 2022. In addition, in May 2022 the Company announced that it intends to constructbegan construction of Heskett Unit 4, an 88-MW simple-cycle natural gas-fired combustion turbine peaking unit at the existing Heskett Station near Mandan, North Dakota. Heskett Unit 4 productionDakota, with an expected in service date in the first half of 2023.
The Company is one of four owners of Coyote Station and cannot make a unilateral decision on the plant's future; therefore, the Company could be negatively impacted by decisions of the other owners. In September 2021, Otter Tail Power Company filed its 2022 Integrated Resource Plan in Minnesota and North Dakota, which included its intent to start the process of withdrawal from its 35 percent ownership interest in Coyote Station with an anticipated exit from the plant by December 31, 2028. The joint owners continue to collaborate in analyzing data and weighing decisions that impact the plant and its employees as well as each company's customers and communities served. State implementation of pollution control plans to improve visibility at Class I areas, such as national parks, under the EPA's Regional Haze Rule could require the owners of Coyote Station to incur significant new costs. If the owners decide to incur such costs, coupled with the MISO market purchases are expectedcosts could, dependent on determination by state regulatory commissions on approval to recover such costs from customers, negatively impact the Company's results of operations, financial position and cash flows. The NDDEQ submitted a draft state implementation plan to the EPA and federal land managers of the National Park Service, the United States Fish and Wildlife Service and the United States Forest Service for consultation, and the federal land managers have submitted comments back to the NDDEQ for review. The NDDEQ determined it is not reasonable to require controls during this planning period. The emissions modeling was delayed and has subsequently delayed the NDDEQ state implementation plan process. The NDDEQ state implementation plan was open for public comment from April 20, 2022 through June 1, 2022, and, as currently drafted, does not require additional controls for any units in North Dakota, including Coyote Station. Therefore, the NDDEQ's state implementation plan, which was due to the EPA by July 2021, is anticipated to be about halfsubmitted to the total cost of continuing to run the coal-fired electric generating units at HeskettEPA in August 2022.
Legislation and Lewis & Clark stations.
rulemaking The Company continues to monitor legislation and rulemaking related to clean energy standards that may impact its segments. Below are some of the specific legislative actions the Company is monitoring.
The current presidential administration is considering changes to the federal Clean Air Act, some of which were amended by the previous presidential administration. The content and impacts of the changes under consideration are uncertain and the Company continues to monitor for potential actions by the EPA.
In Oregon, an executive order issuedthe Climate Protection Program Rule was approved in March 2020December 2021, which requires the statenatural gas companies to reduce GHG emissions 4550 percent below 1990 levelsthe baseline by 2035 and 8090 percent below 1990 levelsthe baseline by 2050. State agencies impacted by2050, which may be achieved through surrendering emissions allowances, investing in additional customer conservation and energy efficiency programs, purchasing community climate investment credits, and purchasing low carbon fuels such as renewable natural gas. The Company expects the order will continuecompliance costs for these regulations to workbe recovered through customer rates. The Company, along with the endother two local distribution companies in Oregon, filed a lawsuit on March 18, 2022, challenging the Climate Protection Program Rule. The lawsuit was filed on behalf of 2021 on the rule-making necessary for compliance. Until the rule-making is completed, compliance impacts tocustomers as the Company remain uncertain. does not believe the rule accomplishes environmental stewardship in the most effective and affordable way possible.
In Washington, the Climate Commitment Act signed into law in May 2021 requires natural gas distribution companies to reduce overall GHG emissions 45 percent below 1990 levels by 2030, 70 percent below 1990 levels by 2040 and 95 percent below 1990 levels by 2050, which may be achieved through increased energy efficiency and conservation measures, purchased emission allowances and offsets, and purchasepurchases of renewable natural gas.low carbon fuels. As directed by the Climate Commitment Act, the Washington DOE has begun the Climate Commitment Program rule-making process and is expected to publish a final rule in the fall of 2022. The Company has begun reviewing compliance options and expects the compliance costs for these legislated actionsregulations will be recovered through customer rates.
The Company continues to be focused on the regulatory recovery of its investments by filing for rate adjustments to seek recovery of operating costs and capital investments, as well as reasonable returns as allowed by regulators. The Company's most recent cases by jurisdiction are discussed in Note 19.
The labor contract at Cascade with the ICWU has been ratified and is effective through March 31, 2024. The labor contract at Montana-Dakota with the IBEW was extended through August 31, 2021, and is currently in negotiations.
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On April 22, 2022, the Washington State Building Code Council approved revisions to the state's commercial energy code that will significantly limit the use of natural gas for space and water heating in new and retrofitted commercial and multifamily buildings and proposed the review of similar restrictions in the future for residential buildings. The Company is currently assessing the impact of these revisions.
Pipeline
Strategy and challenges The pipeline segment provides natural gas transportation, underground storage and energy-related services, as discussed in Note 17. The segment focuses on utilizing its extensive expertise in the design, construction and operation of energy infrastructure and related services to increase market share and profitability through optimization of existing operations, organic growth and investments in energy-related assets within or in close proximity to its current operating areas. The segment focuses on the continual safety and reliability of its systems, which entails building, operating and maintaining safe natural gas pipelines and facilities. The segment continues to evaluate growth opportunities including the expansion of natural gas facilities; incremental pipeline projects; and expansion of energy-related services leveraging on its core competencies. In support of this strategy, the Company completed the following organic growth projects in 2020:
In September 2020, Phase II of the Line Section 22North Bakken Expansion project in the Billings, Montana, area was placed in service. The completion of Phase I and II increased capacity by 22.5 MMcf per day.
In February 2020, the Demicks Lake Expansion project in McKenzie County,western North Dakota was placed in service in February of 2022. The project has capacity to transport 250 MMcf of natural gas per day and can be increased to 625 MMcf per day with additional compression. In addition, the Line Section 7 Expansion project was placed in service in August of 2022 and increased system capacity by 1756.7 MMcf per day.
The segment is exposed to energy price volatility which is impacted by the fluctuations in pricing, production and basis differentials of the energy market's commodities. Legislative and regulatory initiatives on increased pipeline safety regulations and environmental matters such as the reduction of methane emissions could also impact the price and demand for natural gas. In February 2021, the FERC issued a revised notice of inquiry seeking new information and stakeholder perspectives regarding the certification of new interstate natural gas facilities. The FERC issued the original notice of inquiry seeking stakeholder perspectives on this topic in April 2018. The FERC also took a step toward reforming the way in which it analyzes GHG emissions for purposes of natural gas pipeline certificates by including a quantitative analysis of the GHG emissions associated with a pipeline replacement project. At this time, no accepted methodology for a GHG significance calculation has been established. The Company is monitoring the progress of these initiatives and is assessing the potential impacts they may have on its business processes, current and future projects, results of operations and disclosures.
The pipeline segment is also subject to extensive regulation includingrelated to certain operational and environmental compliance, cybersecurity, permit terms and system integrity. The Company continues to actively evaluate cybersecurity processes and procedures, including recent changes in the industry's cybersecurity regulations, for opportunities to further strengthen its cybersecurity protections. Implementation of enhancements and additional requirements is ongoing. In September 2019, the PHMSA issued a rule for additional regulations to strengthen the safety of natural gas transmission and storage facilities and hazardous liquid pipelines. The segment has implemented procedure changes and physical modifications to existing facilities necessary for new requirements including those that became effective July 1, 2021. The segment reviews and secures existing permits and easements, as well as new permits and easements as necessary, to meet current demand and future growth opportunities on an ongoing basis. Groups opposing natural gas pipelines could also cause negative impacts on the segment with increased costs, potential delays to project completion or cancellation of prospective projects.
In April 2020 and November 2020, the Company completed the sales of its regulated and non-regulated natural gas gathering assets, respectively. With the completion of these sales, the Company has exited the natural gas gathering business.
The segment regularly experiences extended lead times on raw materials that are critical to the segment's construction and maintenance work. In addition, the segment is currently experiencing increased fuel and raw material costs, as well as other inflationary pressures. Long lead times on materials could delay maintenance work and construction projects potentially causing lost revenues and/or increased costs. The Company proactively monitorsis actively managing the national supply chain challenges and plans for materialinflationary costs, including longer than normal lead times for certain items, and worksworking with its manufacturers and suppliers to help mitigate these risks including procuring materials further in advance to minimize delays and impacts. The Company expects supply chain challenges and inflationary pressures to continue throughout at least the riskremainder of delays due to extended lead times.2022.
The segment focuses on the recruitment and retention of a skilled workforce to remain competitive and provide services to its customers. The industry in which it operates relies on a skilled workforce to construct energy infrastructure and operate existing infrastructure in a safe manner. A shortage of skilled personnel can create a competitive labor market which could increase costs incurred by the segment. Competition from other pipeline companies can also have a negative impact on the segment.

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Earnings overview - The following information summarizes the performance of the pipeline segment.
Three Months EndedSix Months EndedThree Months EndedSix Months Ended
June 30,June 30,June 30,June 30,
2021 2020 Variance2021 2020 Variance 2022 2021 Variance2022 2021 Variance
(In millions) (In millions)
Operating revenuesOperating revenues$35.6 $35.7 — %$71.8 $71.5 — %Operating revenues$37.6 $35.6 %$74.7 $71.8 %
Operating expenses:Operating expenses:Operating expenses:
Operation and maintenanceOperation and maintenance16.1 15.1 %31.3 30.1 %Operation and maintenance14.8 16.1 (8)%30.2 31.3 (4)%
Depreciation, depletion and amortizationDepreciation, depletion and amortization5.2 5.3 (2)%10.3 11.2 (8)%Depreciation, depletion and amortization6.8 5.2 31 %13.1 10.3 27 %
Taxes, other than incomeTaxes, other than income3.2 3.1 %6.6 6.6 — %Taxes, other than income3.4 3.2 %6.9 6.6 %
Total operating expensesTotal operating expenses24.5 23.5 %48.2 47.9 %Total operating expenses25.0 24.5 %50.2 48.2 %
Operating incomeOperating income11.1 12.2 (9)%23.6 23.6 — %Operating income12.6 11.1 14 %24.5 23.6 %
Other income1.9 1.0 90 %2.8 1.0 180 %
Other income (expense)Other income (expense)(.7)1.9 (137)%(.6)2.8 (121)%
Interest expenseInterest expense1.9 1.9 — %3.9 3.9 — %Interest expense2.7 1.9 42 %5.2 3.9 33 %
Income before income taxesIncome before income taxes11.1 11.3 (2)%22.5 20.7 %Income before income taxes9.2 11.1 (17)%18.7 22.5 (17)%
Income tax expenseIncome tax expense1.9 2.3 (17)%4.4 4.4 — %Income tax expense2.1 1.9 11 %4.2 4.4 (5)%
Net incomeNet income$9.2 $9.0 %$18.1 $16.3 11 %Net income$7.1 $9.2 (22)%$14.5 $18.1 (20)%
Operating statisticsThree Months EndedSix Months Ended
June 30,June 30,
2021 2020 2021 2020 
Transportation volumes (MMdk)118.7 95.6 229.5 207.3 
Natural gas gathering volumes (MMdk)— 2.1 — 5.4 
Customer natural gas storage balance (MMdk):
Beginning of period5.2 3.8 25.5 16.2 
Net injection (withdrawal)10.8 15.3 (9.5)2.9 
End of period16.0 19.1 16.0 19.1 
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Operating statisticsThree Months EndedSix Months Ended
June 30,June 30,
2022 2021 2022 2021 
Transportation volumes (MMdk)115.7 118.7 226.2 229.5 
Customer natural gas storage balance (MMdk):
Beginning of period2.8 5.2 23.0 25.5 
Net injection (withdrawal)12.0 10.8 (8.2)(9.5)
End of period14.8 16.0 14.8 16.0 
Three Months Ended June 30, 2021,2022, Compared to Three Months Ended June 30, 20202021 Pipeline earnings increased $200,000decreased $2.1 million as a result of:
Revenues: Comparable to the same period in the prior year. Revenues were positively impactedincreased $2.0 million.
Driven by higher non-regulated project revenues. Offsetting the increase were decreased gatheringincreased transportation volume revenues of $1.2$4.1 million, largely due to the sales of the Company's natural gas gathering assetsNorth Bakken Expansion project placed in 2020 and decreased storage-relatedservice in February 2022.
Partially offset by lower non-regulated project revenues.
Operation and maintenance: Increase of $1.0maintenance decreased $1.3 million resulting primarily due to higherfrom lower non-regulated project costs of $600,000 associated with higherlower non-regulated project revenues, as previously discussed, and higherdiscussed. Lower payroll-related costs, largely stock-based compensation expensedue to lower incentive accruals, were mostly offset by higher materials and health carelegal costs.
Depreciation, depletion and amortization:amortization increased $1.6 million due to increased property, plant and equipment balances, largely related to the North Bakken Expansion project.
ComparableTaxes, other than income were comparable to the same period in the prior year.
Taxes, other than income: ComparableOther income (expense) decreased $2.6 million, driven by:
Lower returns on the Company's nonqualified benefit plan investments of $1.3 million, as discussed in Note 14.
Lower AFUDC as a result of the completion of the North Bakken Expansion project placed in service in February 2022.
Interest expense increased $800,000, primarily due to higher debt balances to fund capital expenditures.
Income tax expense was comparable to the same period in the prior year.
Other income:Six Months Ended Increase of $900,000, primarily theJune 30, 2022, Compared to Six Months Ended June 30, 2021 Pipeline earnings decreased $3.6 million as a result of higher AFUDC.of:
Interest expense: ComparableRevenues increased $2.9 million.
Driven by increased transportation volume revenues of $7.0 million, largely due to the North Bakken Expansion project placed in service in February 2022.
Partially offset by:
Lower non-regulated project revenues of $3.0 million.
Lower storage-related revenues of $700,000.
Lower transmission rate, due to an expired negotiated contract converted to tariff rate.
Operation and maintenance decreased $1.1 million, driven by:
Lower non-regulated project costs of $1.9 million associated with lower non-regulated project revenues, as previously discussed.
Higher materials, legal and contract services costs were partially offset by lower payroll-related costs, largely due to lower incentive accruals.
Depreciation, depletion and amortization increased $2.8 million due to increased property, plant and equipment balances, largely related to the North Bakken Expansion project.
Taxes, other than income were comparable to the same period in the prior year.
Income tax expense: Decrease of $400,000, primarilyOther income (expense) decreased $3.4 million, resulting from an energy efficiency tax benefit.from:
Six Months Ended June 30, 2021, ComparedLargely due to Six Months Ended June 30, 2020 Pipeline earnings increasedlower returns on the Company's nonqualified benefit plan investments of $1.8 million, as discussed in Note 14.
Lower AFUDC as a result of:of the completion of the North Bakken Expansion project placed in service in February 2022.
Revenues: Comparable to the same period in the prior year. Revenues were positively impacted by an increase to storage-related revenues of $1.8 million and higher non-regulated project revenues. These increases were largely offset by lower gathering revenues of $3.3 million due to the sales of the Company's natural gas gathering assets in 2020.
Operation and maintenance: Increase of $1.2Interest expense increased $1.3 million, primarily due to higher payroll-related costs of $1.1 million, largely stock-based compensation expense and health care costs, and higher non-regulated project costsinterest associated with higher non-regulated project revenue, as previously discussed.debt balances to fund capital expenditures.
Depreciation, depletion and amortization: Decrease of $900,000, largely resulting from the absence of natural gas gathering assets, as previously discussed, offset in part by higher property, plant and equipment balances related to organic growth projects.
Taxes, other than income: ComparableIncome tax expense was comparable to the same period in the prior year.
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Other income:Outlook IncreaseOn February 18, 2022, the FERC issued two policy statements regarding the certification of $1.8 million, primarilynew interstate natural gas facilities. The two policy statements were subsequently converted to draft policy statements by the result of higher AFUDC.
Interest expense: ComparableFERC on March 24, 2022. The first draft policy statement, the Updated Certificate Policy Statement, describes how the FERC will determine whether a new interstate natural gas transportation project is required by public convenience and necessity. It includes increased focus on a project's purpose and need and the environmental impacts; as well as impacts on landowners and environmental justice communities. The FERC also clarified the updated policy statement will not apply to projects that have been filed with the FERC prior to the same periodpolicy statement being finalized. The second draft policy statement, the Interim GHG Policy Statement, explains how the FERC will assess the impacts of natural gas infrastructure projects on climate change in its reviews under the prior year.
Income taxes: Comparable toNational Environmental Policy Act and Natural Gas Act. The FERC invited public comment on the same period in the prior year. Income tax expense was higherdraft policy statements which were due to increased income before income taxes which was largely offset by an energy efficiency tax benefit.
Outlook April 25, 2022. The Company continues to managemonitor and assess these initiatives and the potential impacts of the COVID-19 pandemicthey may have on its business processes, current and future projects, results of operations and is committed to providing safe, reliable and compliant service while ensuring the health and safety of its employees, customers and the communities in which it operates. Overall, the pipeline business has had minimal impacts due to COVID-19 and does not expect delays to its regulatory filings or projects due to the pandemic.disclosures.
The Company has continued to experience the effect of associated natural gas production in the Bakken, which has provided opportunities for organic growth projects and increased demand. The completion of organic growth projects has contributed to thehigher volumes of natural gas the Company transports through its system. Although lowIncreased oil prices slowed 2020 drilling activities and led to the shut-in of certain wells, the recovery of oil prices hashave allowed producers to bring wells back online and support new drilling. As a result, associated natural gas production in the Bakken has returned to near pre-pandemic levels.levels and is expected to continue to grow due to new oil wells and increasing gas to oil ratios.
The low levels of natural gas in storage nationally, along with global events, has put upward pressure on natural gas prices and increased volatility. While the Company believes there will continue to be varying pressures on natural gas production levels and prices, the long-term outlook for natural gas prices continues to provide growth opportunity for industrial supply related projects and seasonal pricing differentials provide opportunities for storage services.
The Company continues to focus on growth and improving existing operations through organic projects in all areas in which it operates. The national record levels of natural gas supply over the last few years has moderated the pressure on natural gas prices and continues to minimize price volatility. While the Company believes there will continue to be varying pressures on natural gas production levels and prices due to these circumstances, low natural gas prices provide growth opportunity for industrial supply related projects and seasonal pricing differentials provide opportunities for storage services.
In January 2019, the Company announced the North Bakken Expansion project,operates, which includes constructionadditional organic growth projects with local distribution companies and industrial customers in various stages of a new pipeline, compression and ancillary facilities to transport natural gas from core Bakken production areas near Tioga, North Dakota, to a new connection with Northern Border Pipeline in McKenzie County, North Dakota. Long-term take or pay customer contracts support the project at an amended design capacity of 250 MMcf per day, which can be readily expanded to meet forecasted natural gas growth levels and customer needs. In February 2020, the Company filed with the FERC its application for this project. In June 2021, the Company received a FERC order issuing a certificate of public convenience and necessity for the project and in July 2021, the FERC granted the Company a notice to proceed with construction. Construction began in July 2021 and is expected to be completed by the end of 2021 assuming favorable weather conditions.development.
In July 2021, the Company announced plans for a natural gas pipeline expansion project in eastern North Dakota. The Wahpeton Expansion project consists of 60 miles of pipe and ancillary facilities and is designed to increase capacity by 20 MMcf per day, which is supported by long termlong-term customer agreements with Montana-Dakota and its utility customers. Construction is expected to begin in early 2024, depending on regulatory approvals, with aan anticipated completion date later in 2024. On May 27, 2022, the Company filed with FERC its application for this project.
The Company has also entered into long-term customer agreements for the construction of four additional growth projects. The first of these projects, Line Section 7 Expansion project, was placed in service in August 2022 and increased system capacity by 6.7 MMcf per day. The remaining projects are still dependent on regulatory approvals and anticipated to be completed in 2023. Estimated capital expenditures for these projects is approximately $108 million and is included in the pipeline segment's estimated capital expenditures for 2022 and 2023. The projects will add total incremental system capacity of over 300 MMcf per day.
Construction Materials and Contracting
Strategy and challenges The construction materials and contracting segment provides an integrated set of aggregate-based construction services, as discussed in Note 17. The segment focuses on high-growth strategic markets located near major transportation corridors and desirable mid-sized metropolitan areas; strengthening the long-term, strategic aggregate reserve position through available purchase and/or lease opportunities; enhancing profitability through cost containment, margin discipline and vertical integration of the segment's operations; development and recruitment of talented employees; and continued growth through organic and strategic acquisition opportunities.
A key element of the Company's long-term strategy for this business is to further expand its market presence in the higher-margin materials business (rock, sand, gravel, liquid asphalt oil, asphalt concrete, ready-mixedready-mix concrete and related products), complementing and expanding on the segment's expertise. The Company's continued acquisition activity supports this strategy.
As one of the country's largest sand and gravel producers, the segment continues to strategically manage its approximately 1.1 billion tons of aggregate reserves, in all its markets, as well as take further advantage of being vertically integrated. The segment's vertical integration allows the segmentit to manage operations from aggregate mining to final lay-down of concrete and asphalt, with control of and access to permitted aggregate reserves being significant. The Company's aggregate reserves are naturally declining and, as a result, the Company seeks acquisition opportunities to replace the reserves. During 2020, the Company made strategic asset purchases that contributed approximately 115 million tons of aggregate reserves. In the first quarter of 2021, the Company received the necessary permitting to expand its operation capabilities at its Honey Creek quarry near Austin, Texas. Honey Creek contains an estimated 40-year supply of aggregates.
The construction materials and contracting segment faces challenges that are not under the direct control of the business. The segment operates in geographically diverse and highly competitive markets. Competition can put negative pressure on the segment's operating margins. The segment is also subject to volatility, including recent inflationary pressures, in the cost of raw materials such as diesel fuel, gasoline, liquid asphalt oil, cement and steel.steel, with diesel fuel and asphalt oil costs having the most significant impact on the segment's recent results. Such volatility canand inflationary pressures may continue to have an impact on the segment's margins, including fixed-price construction contracts that are particularly vulnerable to the volatility of energy and
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material prices. The Company has increased product pricing where necessary to mitigate the effects of recent inflationary costs, however, there is a lag between announced price increases and the time when they will be fully recognized. The Company will continue to evaluate future price increases to stay ahead of inflationary pressures as they are expected to continue throughout at least the remainder of 2022. In addition, while the Company has not yet experienced significant cement supply shortages, it has started to receive notices from cement suppliers for the ready-mix concrete product line about potential supply allocations, which could impact sales volumes in future periods. Other variables that can impact the segment's margins include adverse weather conditions, the timing of project starts or completioncompletions and declines or delays in new and
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existing projects due to the cyclical nature of the construction industry and governmental infrastructure spending. Accordingly, operating results in any particular period may not be indicative of the results that can be expected for any other period.
The segment also faces challenges in the recruitment and retention of employees. Trends in the labor market include an aging workforce and availability issues. Most of the markets the segment operates in have experienced labor shortages, largely truck drivers, causing increased labor-related costs and delays or inefficiencies on projects. The segmentCompany continues to face increasing pressuremonitor the labor markets and expects labor costs to control costs, as well ascontinue to increase based on the increased demand for services and, to a lesser extent, the recent escalated inflationary environment in the United States. The increase in labor shortages also impacts the segment's ability to recruit and train a skilled workforce to meet the needs of increasing demand and seasonal work. In order to help attract new workers to the construction industry and enhance the skills of its current employees, the Company has completed a training facility in Oregon. The training facility offers hands-on training for heavy equipment operators and truck drivers, as well as leadership and safety training.
Earnings overview - The following information summarizes the performance of the construction materials and contracting segment.
Three Months EndedSix Months EndedThree Months EndedSix Months Ended
June 30,June 30,June 30,June 30,
2021 2020 Variance2021 2020 Variance 2022 2021 Variance2022 2021 Variance
(In millions) (In millions)
Operating revenuesOperating revenues$633.8 $621.1 %$899.5 $883.3 %Operating revenues$711.8 $633.8 12 %$1,021.8 $899.5 14 %
Cost of sales:Cost of sales:Cost of sales:
Operation and maintenanceOperation and maintenance497.0 487.9 %740.2 738.7 — %Operation and maintenance588.1 497.0 18 %875.1 740.2 18 %
Depreciation, depletion and amortizationDepreciation, depletion and amortization24.3 21.2 15 %46.7 40.8 14 %Depreciation, depletion and amortization28.5 24.3 17 %55.7 46.7 19 %
Taxes, other than incomeTaxes, other than income13.9 13.6 %23.6 23.0 %Taxes, other than income15.0 13.9 %26.0 23.6 10 %
Total cost of salesTotal cost of sales535.2 522.7 %810.5 802.5 %Total cost of sales631.6 535.2 18 %956.8 810.5 18 %
Gross marginGross margin98.6 98.4 — %89.0 80.8 10 %Gross margin80.2 98.6 (19)%65.0 89.0 (27)%
Selling, general and administrative expense:Selling, general and administrative expense:Selling, general and administrative expense:
Operation and maintenanceOperation and maintenance24.2 21.6 12 %46.0 43.8 %Operation and maintenance23.5 24.2 (3)%48.8 46.0 %
Depreciation, depletion and amortizationDepreciation, depletion and amortization1.0 1.3 (23)%2.1 2.3 (9)%Depreciation, depletion and amortization1.3 1.0 30 %2.4 2.1 14 %
Taxes, other than incomeTaxes, other than income1.0 .8 25 %3.4 3.2 %Taxes, other than income1.0 1.0 — %4.0 3.4 18 %
Total selling, general and administrative expenseTotal selling, general and administrative expense26.2 23.7 11 %51.5 49.3 %Total selling, general and administrative expense25.8 26.2 (2)%55.2 51.5 %
Operating incomeOperating income72.4 74.7 (3)%37.5 31.5 19 %Operating income54.4 72.4 (25)%9.8 37.5 (74)%
Other income1.2 1.9 (37)%1.1 .7 57 %
Other income (expense)Other income (expense)(2.9)1.2 (342)%(4.8)1.1 (536)%
Interest expenseInterest expense4.8 5.7 (16)%9.5 10.9 (13)%Interest expense7.4 4.8 54 %12.7 9.5 34 %
Income before income taxes68.8 70.9 (3)%29.1 21.3 37 %
Income tax expense17.4 17.9 (3)%8.5 6.5 31 %
Net income$51.4 $53.0 (3)%$20.6 $14.8 39 %
Income (loss) before income taxesIncome (loss) before income taxes44.1 68.8 (36)%(7.7)29.1 (126)%
Income tax expense (benefit)Income tax expense (benefit)11.5 17.4 (34)%(.3)8.5 (104)%
Net income (loss)Net income (loss)$32.6 $51.4 (37)%$(7.4)$20.6 (136)%
Operating statisticsThree Months EndedSix Months Ended
June 30,June 30,
2021 2020 2021 2020 
Sales (000's):
Aggregates (tons)9,533 8,739 14,341 12,956 
Asphalt (tons)2,091 2,166 2,385 2,393 
Ready-mixed concrete (cubic yards)1,201 1,119 1,933 1,823 
Operating statisticsRevenuesGross margin
Three Months EndedSix Months EndedThree Months EndedSix Months Ended
June 30,June 30,June 30,June 30,
2022 2021 2022 2021 2022 2021 2022 2021 
(In millions)
Aggregates$136.4 $125.1 $214.0 $195.5 $18.7 $17.5 $15.9 $14.8 
Asphalt121.5 101.5 139.7 115.7 10.5 13.5 4.4 8.7 
Ready-mix concrete168.1 163.2 276.6 263.9 19.1 19.8 24.3 25.6 
Other products*124.3 109.0 161.8 140.0 12.2 24.1 (1.6)12.4 
Contracting services330.7 280.8 445.0 376.9 19.7 23.7 22.0 27.5 
Intracompany eliminations(169.2)(145.8)(215.3)(192.5)— — — — 
$711.8 $633.8 $1,021.8 $899.5 $80.2 $98.6 $65.0 $89.0 
*Other products includes cement, asphalt oil, merchandise, fabric, spreading and other products that individually are not considered to be a major line of business for the segment.
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Three Months EndedSix Months Ended
June 30,June 30,
2022 2021 2022 2021 
Sales (thousands):
Aggregates (tons)9,521 9,533 14,491 14,341 
Asphalt (tons)2,101 2,091 2,417 2,385 
Ready-mix concrete (cubic yards)1,140 1,201 1,873 1,933 
Average selling price:
Aggregates (per ton)$14.33 $13.12 $14.77 $13.64 
Asphalt (per ton)$57.85��$48.53 $57.77 $48.52 
Ready-mix concrete (per cubic yard)$147.53 $135.87 $147.67 $136.51 
Three Months Ended June 30, 2021,2022, Compared to Three Months Ended June 30, 20202021 Construction materials and contracting's earnings decreased $1.6$18.8 million as a result of:
Revenues: Increase of $12.7 million, primarilyRevenuesincreased $78.0 million.
Primarily the result of:
Increased contracting revenues of higher material revenues for aggregates and ready-mixed concrete$49.9 million due to more available work, strong demand in some regions and large projectsrevenue from recent acquisitions.
Higher average selling prices across all product lines, as well as additional asphalt volumes from recent acquisitions in certain regions. The increase wasOregon, which were partially offset by decreased contracting services of $22.5 million due to less favorablelower asphalt sales volumes largely resulting from unfavorable weather conditions in certain regions in 2021 and delays in the start of some project work.regions.
Gross margin: ComparablePartially offset by:
An increase in intrasegment eliminations for materials sales.
Lower ready-mix concrete sales volumes due to the same periodabsence of large projects and unfavorable weather conditions in the prior year. Gross margin was positively impactedcertain regions.
Decreased aggregates sales volumes due to unfavorable weather conditions, offset in part by increased revenues which was mostly offset byof $9.3 million from recent acquisitions.
Gross margin decreased $18.4 million, primarily due to higher depreciation expense.operating costs across the business as a result of inflationary pressures, including diesel fuel costs of $13.1 million and higher materials, labor and production costs. In addition, contracting services margins decreased from the impacts of unfavorable weather conditions and the mix of work performed.
Selling, general and administrative expense: Increase of $2.5 million driven by higher payroll-related costs, largely stock-based compensation expense and health care costs.
Other income: Decrease of $700,000, largely due to lower returns on the Company's benefit plan investments.
Interest expense: Decrease of $900,000 due to lower average interest rates.
Income tax expense: Comparablewas comparable to the same period in the prior year.
Other income (expense) decreased $4.1 million, primarily due to lower returns on the Company's nonqualified benefit plan investments, as discussed in Note 14.
Interest expense increased $2.6 million, largely the result of higher debt balances to fund recent acquisitions and higher working capital needs.
Income tax expense decreased $5.9 million, largely due to the lower income before income taxes.
Six Months Ended June 30, 2022, Compared to Six Months Ended June 30, 2021 Construction materials and contracting's earnings decreased $28.0 million as a result of:
Revenuesincreased $122.3 million.
Primarily the result of:
Higher average selling prices across all product lines, as well as:
Increased aggregates sales volumes, largely from recent acquisitions, partially offset by unfavorable weather conditions.
Additional asphalt revenues from recent acquisitions were offset in part by lower sales volumes in Iowa, North Dakota and South Dakota due to unfavorable weather conditions causing a late start to the season.
Increased contracting revenues of $68.1 million across all regions, particularly in Idaho and Oregon due to strong demand and revenues from recent acquisitions.
These increases were partially offset by:
An increase in intrasegment eliminations for materials sales.
Lower ready-mix concrete sales volumes due to the absence of certain large projects, decreased demand and unfavorable weather conditions in certain regions.
Gross margin decreased $24.0 million, primarily due to higher operating costs across the business as a result of inflationary pressures, including diesel fuel costs of $18.0 million and higher repair and maintenance, materials, labor and production costs. In addition, contracting services margins decreased from the impacts of unfavorable weather conditions and the mix of work.
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Six Months Ended June 30, 2021, Compared to Six Months Ended June 30, 2020 Construction materialsSelling, general and contracting's earningsadministrative expense increased $5.8 million as a result of:$3.7 million.
Revenues: IncreaseLargely due to:
Increased employee-related costs of $16.2$1.0 million.
Higher professional fees of $900,000.
Less recovery of bad debt expense of $800,000.
Increased technology expenses.
Other income (expense) decreased $5.9 million, primarily due to lower returns on the Company's nonqualified benefit plan investments, as discussed in Note 14.
Interest expense increased $3.2 million, largely the result of higher material revenues for aggregates and ready-mixed concrete duedebt balances to strong demand, large projectsfund recent acquisitions and higher realized prices in certain regions. The increase was partially offset by decreased contracting services of $24.9 million due to less favorable weather conditions in certain regions in 2021 and delays in the start of some project work.working capital needs.
Gross margin: Increase of $8.2Income tax expense (benefit) decreased $8.8 million, largely due to higher revenues, as previously discussed, and higher realized materials margins, primarily aggregates and ready-mixed concrete, and higher contracting bid margins. Partially offsetting these increases was higher depreciation expense.
Selling, general and administrative expense: Increase of $2.2 million, primarily due to higher payroll-related costs of $4.2 million, largely stock-based compensation expense and health care costs. Partially offsetting the increase was the recovery of prior bad debt expense of $1.3 million and lower professional services.
Other income: Increase of $400,000 as a result of higher returns on the Company's benefit plan investments.
Interest expense: Decrease of $1.4 million, mainly due to lower average interest rates.
Income tax expense: Increase of $2.0 million, largely due to an increase in income before income taxes.
Outlook The Company continues to assess the impacts of the COVID-19 pandemic on its operations and is committed to the health and safety of its employees, customers and the communities in which it operates. In 2021, the Company continues to implement safety measures developed in 2020 for its employees that were not able to work from home and has experienced some inefficiencies and additional costs in relation to these measures, including delays in the ability to obtain permits from government agencies and, for the most part, has been able to continue business processes with minimal interruptions. The Company also continues to monitor job progress and service work and at this time has not experienced significant delays, cancellations or disruptions due to the pandemic. The American Rescue Plan Act approved by the United States Congressenacted in the first quarter of 2021 provides $1.9 trillion in COVID-19 relief funding for states, schools and local governments. BecauseStates are beginning to move forward with allocating these funds based on federal criteria and state needs, and in some cases, funding of limited guidance currently available to states on how the funds can be spent, there is uncertainty regarding whether the funds will be made available for infrastructure projects that could positively impact the segment. Additionally, the current presidential administration and the United States Congress continue working toward an agreement on a comprehensivebipartisan infrastructure proposal, that, if adopted, could positively impactknown as the segment.Infrastructure Investment and Jobs Act, was enacted in the fourth quarter of 2021. This initiative is providing long-term opportunities by designating $119 billion for the repair and rebuilding of roads and bridges across the Company's footprint. The Company continues to monitor the progressimplementation of these legislative items.
The segment's vertically integrated aggregate-basedaggregates-based business model provides the Company with the ability to capture margin throughout the sales delivery process. The aggregate products are sold internally and externally for use in other products such as ready-mixedready-mix concrete, asphaltic concrete and public and private construction markets. The contracting services and construction materials are sold in connection with street, highway and other public infrastructure projects, as well as private commercial, industrial and residential development projects. The public infrastructure projects have traditionally been more stable markets as public funding is more secure during periods of economic decline. The public projects are, however, dependent on federal and state funding such as appropriations to the Federal Highway Administration. Spending on private development is highly dependent on both local and national economic cycles, providing additional sales during times of strong economic cycles.cycles and potential for reductions during times of inflation or supply shortages.
During 2021, and 2020, the Company made strategic purchases and completed acquisitions that support the Company's long-term strategy to expand its market presence. In April 2021, the Company acquired Mt. Hood Rock, a construction aggregates business located in Portland, Oregon. The Company continues to evaluate additional acquisition opportunities that would be accretive to earnings of the Company.opportunities. For more information on the Company's business combinations, see Note 10.
The construction materials and contracting segment's backlog remained strong at June 30, 2021, was $912.1 million, which is up slightly from2022, at $1.13 billion, as compared to backlog of $875.1$912.1 million at June 30, 2020. The Company continues2021. A significant portion of the Company's backlog relates to monitor bidding activitypublicly funded projects, largely street and highway construction projects. Period over period increases or decreases in backlog cannot be used as it moves into the third quarteran indicator of 2021.future revenues or net income. The Company expects to complete a significant amountan estimated $1.05 billion of backlog at June 30, 2021,2022, during the next 12 months.
One While the Company believes the current backlog of the labor contracts that the construction materials and contracting segment was negotiating at December 31, 2020, as reported in Items 1 and 2 - Business Properties - Generalwork remains firm, prolonged delays in the 2020receipt of critical supplies and materials or continued increases to pricing could result in customers seeking to delay or terminate existing or pending agreements. Factors noted in Part I, Item 1A. Risk Factors in the 2021 Annual Report has been ratified.can cause revenues to be realized in periods and at levels that are different from originally projected.
Construction Services
Strategy and challenges The construction services segment provides insideelectrical and outsidemechanical and transmission and distribution specialty contracting services, as discussed in Note 17. The construction services segment focuses on safely executing projects; providing a superior return on investment by building new and strengthening existing customer relationships; ensuring quality service; effectively controlling costs; retaining, developing and recruiting talented employees; growing through organic and strategic acquisition opportunities; and focusing efforts on projects that will permit higher margins while properly managing risk. The growth experienced by the segment in recent years is due in part to its ability to support national customers in most of the regions in which it operates.
The construction services segment faces challenges, which are not under direct control of the business, in the highly competitive markets in which it operates. Competitive pricing environments, project delays, changesoperates, including those described in management's estimatesPart I, Item 1A. Risk Factors in the 2021 Annual Report. These factors, and those noted below, have caused fluctuations in revenues, gross margins and earnings in the past and are expected to cause fluctuations in the future.
Revenue mix and impact on margins. The mix of variablerevenues based on the types of services the segment provides can impact margins as certain industries and services provide higher margin opportunities. Larger or more complex projects typically result in higher margin opportunities since the segment assumes a higher degree of performance risk and there is greater utilization of the segment's resources for longer construction timelines. However, larger or more complex projects have a higher risk of regulatory and seasonal or cyclical delay. Project schedules fluctuate, which can affect the amount of work performed in a given period. Smaller or less complex projects typically have a greater number of companies competing for them, and competitors at times
4344

Index
considerationmay be more aggressive when pursuing available work. A greater percentage of smaller scale or less complex work in a given period could negatively impact margins due to the inefficiency of transitioning between a greater numbers of smaller projects versus continuous production on a few larger projects.
Project variability and performance. Margins for a single project may fluctuate period to period due to changes in the volume or type of work performed, the pricing structure under the project contract or job productivity. Productivity and performance on a project can vary period to period based on a number of factors, including unexpected project difficulties; unexpected project site conditions; project location, including locations with challenging operating conditions or difficult geographic characteristics; whether the work is on an open or encumbered right of way; inclement weather or severe weather events; environmental restrictions or regulatory delays; political or legal challenges related to a project; and the effectsperformance of third parties. In addition, the type of contract can impact the margin on a project. Under fixed-price contracts, which are more common with larger or more complex projects, the segment assumes risk related to project estimates versus execution. Revenues under this type of contract can vary, sometimes significantly, from restrictiveoriginal projects due to additional project complexity; timing uncertainty or extended bidding; extended regulatory requirements have negatively impacted revenuesor permitting processes; and other factors, which can result in a reduction in profit or losses on a project.
Subcontractor work and provision of materials. Some work under project contracts is subcontracted out to other companies and margins on subcontractor work is generally lower than work performed by the Company. Increased subcontractor work in a given period may therefore result in lower margins. In addition, inflationary or other pressures may increase the pastcost of materials under fixed-price contracts and could affect revenuesmay result in decreased margins on the project. The Company has worked to implement provisions in project contracts to allow for the pass-through of inflationary costs to customers where feasible and margins inwill continue to do so to mitigate the future. Additionally, margins may be negatively impacted on a quarterly basis due to adverse weather conditions,impacts.
The segment is currently experiencing increased fuel and material costs as well as timingimpacts from delays in the national supply chain. The inflationary costs and national supply chain challenges experienced by the segment have increased costs but have not had significant impacts to the procurement of project starts or completions; disruptions tomaterials. However, the Company expects these inflationary pressures and national supply chain duechallenges to transportation delays, raw material cost increasescontinue throughout at least the remainder of 2022. The Company is actively monitoring the situation and shortages,is working with its manufacturers, suppliers and closures of businesses or facilities; declines or delays in new projects duecustomers to the cyclical nature of the construction industry; and other factors. These challenges may also impact the risk of loss on certain projects.help mitigate these risks. Accordingly, operating results in any particular period may not be indicative of the results that can be expected for any other period.
The need to ensure available specialized labor resources for projects also drives strategic relationships with customers and project margins. These trends include an aging workforce and labor availability issues, increasing pressure to reduce costs and improve reliability, andas well as increasing duration and complexity of customer capital programs. Most of the markets the segment operates in have experienced labor shortages which in some cases have caused increased labor-related costs. The Company continues to monitor the labor markets and expects labor costs to continue to increase based on increases included in collective bargaining agreements and, to a lesser extent, the recent escalated inflationary environment in the United States. Due to these and other factors, the Company believes overall customer and competitor demand for labor resources will continue to increase, possibly surpassing the supply of industry resources.increase.
Earnings overview - The following information summarizes the performance of the construction services segment.
Three Months EndedSix Months EndedThree Months EndedSix Months Ended
June 30,June 30,June 30,June 30,
2021 2020 Variance2021 2020 Variance 2022 2021 Variance2022 2021 Variance
(In millions) (In millions)
Operating revenuesOperating revenues$525.6 $497.2 %$1,044.1 $1,011.9 %Operating revenues$685.4 $525.6 30 %$1,238.0 $1,044.1 19 %
Cost of sales:Cost of sales:Cost of sales:
Operation and maintenanceOperation and maintenance442.0 411.1 %869.2 847.3 %Operation and maintenance585.1 442.0 32 %1,056.2 869.2 22 %
Depreciation, depletion and amortizationDepreciation, depletion and amortization3.9 4.0 (3)%7.9 7.9 — %Depreciation, depletion and amortization4.2 3.9 %8.3 7.9 %
Taxes, other than incomeTaxes, other than income16.3 17.2 (5)%35.7 40.6 (12)%Taxes, other than income21.3 16.3 31 %40.3 35.7 13 %
Total cost of salesTotal cost of sales462.2 432.3 %912.8 895.8 %Total cost of sales610.6 462.2 32 %1,104.8 912.8 21 %
Gross marginGross margin63.4 64.9 (2)%131.3 116.1 13 %Gross margin74.8 63.4 18 %133.2 131.3 %
Selling, general and administrative expense:Selling, general and administrative expense:Selling, general and administrative expense:
Operation and maintenanceOperation and maintenance23.6 23.5 — %48.2 47.4 %Operation and maintenance26.5 23.6 12 %52.6 48.2 %
Depreciation, depletion and amortizationDepreciation, depletion and amortization1.0 2.4 (58)%2.3 4.2 (45)%Depreciation, depletion and amortization1.1 1.0 10 %2.2 2.3 (4)%
Taxes, other than incomeTaxes, other than income1.0 1.1 (9)%2.7 2.8 (4)%Taxes, other than income1.1 1.0 10 %2.8 2.7 %
Total selling, general and administrative expenseTotal selling, general and administrative expense25.6 27.0 (5)%53.2 54.4 (2)%Total selling, general and administrative expense28.7 25.6 12 %57.6 53.2 %
Operating incomeOperating income37.8 37.9 — %78.1 61.7 27 %Operating income46.1 37.8 22 %75.6 78.1 (3)%
Other incomeOther income1.6 .5 NM1.8 .7 NMOther income1.0 1.6 (38)%1.1 1.8 (39)%
Interest expenseInterest expense.9 1.1 (18)%1.8 2.3 (22)%Interest expense1.2 .9 33 %2.1 1.8 17 %
Income before income taxesIncome before income taxes38.5 37.3 %78.1 60.1 30 %Income before income taxes45.9 38.5 19 %74.6 78.1 (4)%
Income tax expenseIncome tax expense9.6 9.4 %19.4 15.3 27 %Income tax expense11.4 9.6 19 %18.8 19.4 (3)%
Net incomeNet income$28.9 $27.9 %$58.7 $44.8 31 %Net income$34.5 $28.9 19 %$55.8 $58.7 (5)%
45

*NM - not meaningfulIndex
Operating StatisticsRevenuesGross Margin
Three Months EndedSix Months EndedThree Months EndedSix Months Ended
June 30,June 30,June 30,June 30,
2022 2021 2022 2021 2022 2021 2022 2021 
(In millions)
Electrical & mechanical
Commercial$242.0 $147.7 $430.0 $313.8 $25.1 $18.4 $45.4 $35.9 
Industrial112.1 124.0 207.1 250.4 12.3 12.6 22.1 29.8 
Institutional55.3 39.8 96.0 71.9 .6 1.2 1.2 3.4 
Renewables54.5 1.9 79.4 2.5 3.0 .1 4.0 .4 
Service & other45.2 36.8 91.7 68.0 5.4 4.9 11.1 9.9 
509.1 350.2 904.2 706.6 46.4 37.2 83.8 79.4 
Transmission & distribution
Utility154.8 155.7 297.9 297.0 26.5 23.9 46.4 47.7 
Transportation25.5 24.2 43.4 48.2 1.9 2.3 3.0 4.2 
180.3 179.9 341.3 345.2 28.4 26.2 49.4 51.9 
Intrasegment eliminations(4.0)(4.5)(7.5)(7.7)— — — — 
$685.4 $525.6 $1,238.0 $1,044.1 $74.8 $63.4 $133.2 $131.3 
Three Months Ended June 30, 2021,2022, Compared to Three Months Ended June 30, 20202021 Construction services earnings increased $1.0$5.6 million as a result of:
Revenues: IncreaseRevenues increased $159.8 million.
Largely due to:
Higher commercial workloads driven largely by a $43.5 million increase in the hospitality sector, primarily from the progress on large projects; a $24.3 million increase in data center work from the number of $28.4 million, primarily resulting from higher inside specialty contractingprojects started during the quarter; and an increase in the general commercial sector.
Higher renewable workloads of $24.4$52.6 million or 7.5% more compareddue to the same periodtiming of and progress on commercial renewable projects.
Higher institutional workloads, primarily in the prior year, as a resulthealthcare sector of increased customer demand for manufacturing projects$7.4 million and continued hospitality demand. Outside specialty contracting workloads contributed 2.8% more compared to the same periodeducation sector. Both sectors benefited from the mix of project work in the prior year as a resultquarter.
Higher service workloads of strong demand$8.4 million from service work for utility projects. An increase in equipment salesthe repair and leasingmaintenance of electrical systems.
Partially offset by:
Lower industrial workloads substantially from the power line equipment the Company manufactures also had a positive impactmix of $2.1 millionproject work, primarily in the second quartermaintenance sector of 2021.$16.7 million and the high-tech sector of $11.0 million.
Gross margin: DecreaseLower utility workloads due to project timing for the transmission and distribution sectors of $1.5 million, mainly resulting from contracting margins as a result of higher employee costs in certain regions associated with a shortage of available labor and the absence of higher margin work compared to the second quarter of 2020.
Selling, general and administrative expense: Decrease of $1.4 million, resulting from the recovery of prior bad debt expense of $1.6 million and lower amortization expense of $1.2$26.0 million offset in part by higher officeworkloads in the underground, electrical, storm repair and telecommunications sectors from the timing and mix of project work.
Gross margin increased $11.4 million.
Largely due to:
Higher commercial, renewable and service margins of $10.1 million due substantially to project mix.
Higher utility margins of $2.6 million resulting from the mix of customer projects and higher storm margins.
Partially offset by:
Higher overall operating costs related to inflationary pressures, including increased fuel and material costs and higher labor costs from decreased productivity on certain projects.
Lower institutional and industrial margins of $900,000 due to the timing of project completions and project starts.
Lower transportation margins, primarily for street lighting and traffic signalization projects.
Selling, general and administrative expense and higherincreased $3.1 million.
Primarily due to:
Increased payroll-related costs of $300,000,$2.1 million, largely stock-based compensation expense and health care costs.related to higher employee incentive accruals.
Increased reserve for uncollectible accounts.
Other income: Increase of $1.1 million, largelyincome decreased $600,000, primarily due to increased earningslower returns on investments.the Company's nonqualified benefit plan investments, as discussed in Note 14.
Interest expense: Comparableexpense was comparable to the same period in the prior year.
Income tax expense: Comparable to the same periodexpense increased $1.8 million primarily resulting from an increase in the prior year.income before income taxes.
4446

Index
Six Months Ended June 30, 2021,2022, Compared to Six Months Ended June 30, 20202021 Construction services earnings increased $13.9decreased $2.9 million as a result of:
Revenues: IncreaseRevenues increased $193.9 million.
Largely due to:
Higher commercial workloads driven largely by a $45.5 million increase in the general commercial sector as a result of $32.2an overall increase from project mix and progression on contracts; a $30.0 million increase in the hospitality sector, primarily from the addition of a large hospitality project; and an increase in the data center sector significantly resulting from the addition of more projects.
Higher renewable workloads of $76.9 million due to the timing of commercial renewable projects.
Higher institutional workloads, primarily in the education sector contributing an additional $12.7 million and the healthcare sector contributing an additional $7.2 million, both as a result of increased activity from project mix and progress on projects.
Higher service workloads of $23.7 million from service work for the repair and maintenance of electrical systems.
Higher utility workloads, primarily from an increase in the electrical, underground and distribution sectors of $28.8 million from increased customer released projects, partially offset by lower transmission workloads from customer demand and storm work.
Partially offset by:
Lower industrial workloads of $43.3 million, primarily resulting from the completion of a large high-tech project as well as the timing of other projects, partially offset by an increase in the refinery and general industrial sectors from project mix and timing.
Lower transportation workloads, primarily in the street lighting sector of $9.0 million due to lower demand and the mix of projects.
Gross margin increased $1.9 million.
Largely due to higher outside specialty contracting workloadscommercial, renewable and service margins of $24.3$14.3 million, or 8.8% more comparedprimarily the result of project mix and progression on projects.
Partially offset by:
Higher overall operating costs related to inflationary pressures, including increased fuel and material costs and higher labor costs from decreased productivity on certain projects.
Lower industrial and institutional margins of $9.9 million from the absence of higher margin work, as well as the completion of projects and the timing of project completions and project starts.
Lower utility margins from lower margins on storm repair projects.
Lower transportation margins of $1.2 million for street lighting and traffic signalization projects due to lower margin work.
Selling, general and administrative expense increased $4.4 million.
Primarily due to:
Increased reserve for uncollectible accounts of $2.1 million.
Increased payroll-related costs of $1.5 million, largely related to higher employee incentive accruals.
Increased office expenses of $900,000.
Other income decreased $700,000, primarily due to lower returns on the Company's nonqualified benefit plan investments, as discussed in Note 14.
Interest expense was comparable to the same period in the prior year, as a result of strong demand for utility projects. Inside specialty contracting workloads contributed 1.1% more compared to the same period in the prior year as a result of increased customer demand for manufacturing projects, continued hospitality demand and the absence in 2021 of an out-of-period adjustment in the first quarter of 2020 to correct an overstatement of operating revenues of $7.7 million. An increase in equipment sales and leasing of the power line equipment the Company manufactures also had a positive impact of $2.4 million in 2021.year.
Gross margin: Increase of $15.2 million, primarily due to the higher volume of work resulting in an increase in revenues, as previously discussed, partially offset by an increase in operation and maintenance expense as a direct result of the expenses related to the increased workloads. Also contributing to the increase was the absence in 2021 of an out-of-period adjustment in the first quarter of 2020 to correct an overstatement of operating revenues of $7.7 million and an understatement of operation and maintenance expense of $1.2 million previously recognized on a construction contract.
Selling, general and administrative expense: Decrease of $1.2 million due in part to the recovery of bad debt expense of $3.7 million and lower amortization expense of $1.8 million, offset in part by higher payroll-related costs, largely stock-based compensation expense and health care costs.
Other income: Increase of $1.1 million, largely related to increased earnings on investments.
Interest expense: Decrease of $500,000, driven by lower debt balances as a result of collections on customer accounts during the construction season.
Income taxes: Increase of $4.1 million,tax expense decreased $600,000 directly resulting from an increasea decrease in income before income taxes.
Outlook The Company continues to assess the impacts of the COVID-19 pandemic on its operations and is committed to the health and safety of its employees, customers and the communities in which it operates. In 2021, the Company continues to implement safety measures developed in 2020 for its employees that were not able to work from home and has experienced some inefficiencies in relation to these measures but, for the most part, has been able to continue pre-pandemic business processes. The Company continues to monitor job progress and service work for delays, cancellations and disruptions due to the pandemic but expects minimal disruptions the remainder of 2021. Despite the challenges presented by the COVID-19 pandemic, the Company believes there are long-term growth opportunities and demand for construction services. The American Rescue Plan Actact approved by the United States Congress and signed into law by the President of the United States in the first quarter of 2021 provides $1.9 trillion in COVID-19 relief funding for states, schools and local government including broadband infrastructure. BecauseStates are beginning to move forward with allocating these funds based on federal criteria and state needs, and in some cases, funding of limited guidance currently available to states on how the funds can be spent, there is uncertainty regarding whether the funds will be made available for infrastructure projects that could positively impact the segment. Additionally, the current presidential administrationbipartisan infrastructure proposal, known as the Infrastructure Investment and Jobs Act, was approved by the United States Congress continue working toward an agreement on a comprehensiveand signed into law by the President of the United States in the fourth quarter of 2021. These include investments for upgrades to electric and grid infrastructure, proposal that, if adopted, could positively impact the segment.transportation systems, airports and electric vehicle infrastructure, all industries this segment supports. The Company will continue to monitor the progressimplementation of these legislative items.
The Company continues to have bidding opportunities for both inside and outsidein the specialty contracting workmarkets in 2021which it operated during 2022 as evidenced by the segment's backlog. Although bidding remains highly competitive in all areas, the Company expects the segment's relationship with existing customers, skilled workforce, quality of service and effective cost management will continue to provide a benefit in securing and executing profitable projects.projects in the future. The Company has also seen rapidly growing needs for services across the electric vehicle charging, wind generation and energy storage markets that complement existing renewable projects performed by the Company.
47

Index
The construction services segment's backlog at June 30, was as follows:
Three Months Ended
June 30,
20212020
(In millions)
Inside specialty contracting$1,059 $1,106 
Outside specialty contracting261200
$1,320 $1,306 
20222021
(In millions)
Electrical & mechanical$1,691 $1,059 
Transmission & distribution233261
$1,924 $1,320 
The 46 percent increase in backlog at June 30, 2022, as compared to backlog at June 30, 2021, was largely attributable to the new project opportunities that the Company continues to be awarded across its diverse operations, particularly outside specialty contracting from increased utility demand. The Company continueswithin the commercial, institutional, renewable and industrial markets. These increases were partially offset by decreases in the transportation market due to have strong inside specialty contractingthe timing of project completions. Period over period increases or decreases in backlog related to commercial industries and public projects.cannot be used as an indicator of future revenues or net income. The Company expects to complete a significant amountan estimated $1.64 billion of the backlog at June 30, 2021,2022, during the next 12 months. While the Company believes the current backlog of work remains firm, prolonged delays in the receipt of critical supplies and materials could result in customers seeking to delay or terminate existing or pending agreements. As of June 30, 2022, customers have not provided the Company any indications that they no longer wish to proceed with planned projects that have been included in backlog. Additionally, the Company continues to further evaluate potential acquisition opportunities that would be accretive to earnings of the Company and continue to grow the segment's backlog. Factors noted in Part I, Item 1A. Risk Factors in the 2021 Annual Report can cause revenues to be realized in periods and at levels that are different from originally projected.
45
The labor contract that the construction services segment was negotiating at December 31, 2021, as reported in Items 1 and 2 - Business Properties - General in the 2021 Annual Report, has been ratified.

Index
Other
Three Months EndedSix Months EndedThree Months EndedSix Months Ended
June 30,June 30,June 30,June 30,
2021 2020 Variance2021 2020 Variance 2022 2021 Variance2022 2021 Variance
(In millions)(In millions)
Operating revenuesOperating revenues$3.4 $2.9 17 %$6.7 $5.9 14 %Operating revenues$4.4 $3.4 29 %$8.7 $6.7 30 %
Operating expenses:Operating expenses:Operating expenses:
Operation and maintenanceOperation and maintenance2.3 2.3 — %4.5 4.4 %Operation and maintenance3.5 2.3 52 %7.4 4.5 64 %
Depreciation, depletion and amortizationDepreciation, depletion and amortization1.1 .6 83 %2.4 1.3 85 %Depreciation, depletion and amortization1.1 1.1 — %2.2 2.4 (8)%
Total operating expensesTotal operating expenses3.4 2.9 17 %6.9 5.7 21 %Total operating expenses4.6 3.4 35 %9.6 6.9 39 %
Operating income (loss)— — NM(.2).2 NM
Operating lossOperating loss(.2)— — %(.9)(.2)350 %
Other incomeOther income.3 — NM.4 .2 100 %Other income.1 .3 (67)%.1 .4 (75)%
Interest expenseInterest expense.1 .3 (67)%.2 .6 (67)%Interest expense.2 .1 100 %.3 .2 50 %
Income (loss) before income taxesIncome (loss) before income taxes.2 (.3)NM— (.2)NMIncome (loss) before income taxes(.3).2 (250)%(1.1)— — %
Income tax (benefit) expense(.9)1.0 NM1.6 5.3 (70)%
Income tax expense (benefit)Income tax expense (benefit).3 (.9)133 %4.1 1.6 156 %
Net income (loss)Net income (loss)$1.1 $(1.3)NM$(1.6)$(5.5)70 %Net income (loss)$(.6)$1.1 (158)%$(5.2)$(1.6)217 %
*NM - not meaningful
Three Months Ended June 30, 2021,2022, Compared to Three Months Ended June 30, 2020 2021
Other was positivelynegatively impacted in the second quarter of 2021 by lowerhigher income tax adjustments in 2022 related to the Company's consolidated company's annualized estimated tax rate, partially offset byrate. In addition, higher depreciation, depletionpremiums for the captive insurer were experienced in 2022 compared to 2021, which impacts both operation and amortizationmaintenance expense for software placed in service.and operating revenues. General and administrative costs and interest expense previously allocated to the exploration and production and refining businesses that do not meet the criteria for income (loss) from discontinued operations are also included in Other.
Six Months Ended June 30, 2021,2022, Compared to Six Months Ended June 30, 2020 During the first six months of 2021
Other was positivelynegatively impacted by lowerhigher income tax adjustments in 2022 related to the Company's consolidated company's annualized estimated tax rate partially offset byand a loss on the disposal of assets recorded in operation and maintenance expense. In addition, higher depreciation, depletionpremiums for the captive insurer were experienced in 2022 compared to 2021, which impacts both operation and amortizationmaintenance expense for software placed in service.and operating revenues. General and administrative costs and interest expense previously allocated to the exploration and production and refining businesses that do not meet the criteria for income (loss) from discontinued operations are also included in Other.
48

Index
Intersegment Transactions
Amounts presented in the preceding tables will not agree with the Consolidated Statements of Income due to the Company's elimination of intersegment transactions. The amounts related to these items were as follows:
Three Months EndedSix Months EndedThree Months EndedSix Months Ended
June 30,June 30,
2021 2020 2021 2020  2022 2021 2022 2021 
(In millions) (In millions)
Intersegment transactions:Intersegment transactions: Intersegment transactions: 
Operating revenuesOperating revenues$12.4 $12.3 $43.4 $43.3 Operating revenues$14.4 $12.4 $46.1 $43.4 
Operation and maintenanceOperation and maintenance4.7 4.5 9.8 10.3 Operation and maintenance7.0 4.7 12.9 9.8 
Purchased natural gas soldPurchased natural gas sold7.7 7.8 33.6 33.0 Purchased natural gas sold7.4 7.7 33.2 33.6 
For more information on intersegment eliminations, see Note 17.
Liquidity and Capital Commitments
At June 30, 2021,2022, the Company had cash and cash equivalents of $58.0$65.4 million and available borrowing capacity of $611.8$432.5 million under the outstanding credit facilities of the Company's subsidiaries. The Company expects to meet its obligations for debt maturing within one year and its other operating and capital requirements from various sources, including internally generated funds; credit facilities and commercial paper of the Company's subsidiaries, as described in Capital resources; and issuance of debt and equity securities.securities if necessary.
4649

Index
Cash flows
Six Months EndedSix Months Ended
June 30,June 30,
2021 2020  2022 2021 
(In millions)(In millions)
Net cash provided by (used in):Net cash provided by (used in):Net cash provided by (used in):
Operating activitiesOperating activities$182.8 $261.4 Operating activities$117.4 $182.8 
Investing activitiesInvesting activities(266.5)(296.5)Investing activities(291.0)(266.5)
Financing activitiesFinancing activities82.1 33.0 Financing activities184.8 82.1 
Decrease in cash and cash equivalents(1.6)(2.1)
Increase (decrease) in cash and cash equivalentsIncrease (decrease) in cash and cash equivalents11.2 (1.6)
Cash and cash equivalents -- beginning of yearCash and cash equivalents -- beginning of year59.6 66.5 Cash and cash equivalents -- beginning of year54.2 59.6 
Cash and cash equivalents -- end of periodCash and cash equivalents -- end of period$58.0 $64.4 Cash and cash equivalents -- end of period$65.4 $58.0 
Operating activities 
Six Months Ended
Six Months EndedJune 30,
June 30, 2022 2021 Variance
2021 2020 Variance(In millions)
Components of net cash provided by operating activities:Components of net cash provided by operating activities:(In millions)Components of net cash provided by operating activities:
Income from continuing operationsIncome from continuing operations$152.3 $125.3 $27.0 Income from continuing operations$102.4 $152.3 $(49.9)
Depreciation, depletion and amortization147.4 140.8 6.6 
Deferred income taxes14.5 2.9 11.6 
Adjustments to reconcile net income to net cash provided by operating activitiesAdjustments to reconcile net income to net cash provided by operating activities179.4 155.8 23.6 
ReceivablesReceivables(18.5)(40.8)22.3 Receivables(242.3)(17.4)(224.9)
InventoriesInventories(25.3)(26.3)1.0 Inventories(63.8)(25.3)(38.5)
Other current assetsOther current assets(52.8)30.8 (83.6)Other current assets12.9 (52.8)65.7 
Accounts payableAccounts payable(3.9)13.4 (17.3)Accounts payable104.4 (3.9)108.3 
Other current liabilitiesOther current liabilities(22.6)26.6 (49.2)Other current liabilities29.2 (22.6)51.8 
Pension and postretirement benefit plan contributionsPension and postretirement benefit plan contributions(.3)(.2)(.1)
Other noncurrent changesOther noncurrent changes(8.2)(10.9)2.7 Other noncurrent changes(4.5)(3.0)(1.5)
Net cash used in discontinued operationsNet cash used in discontinued operations(.1)(.4).3 Net cash used in discontinued operations— (.1).1 
Net cash provided by operating activitiesNet cash provided by operating activities$182.8 $261.4 $(78.6)Net cash provided by operating activities$117.4 $182.8 $(65.4)
The changes in cash flows from operating activities generally follow the results of operations, as discussed in Business Segment Financial and Operating Data, and are affected by changes in working capital. The decrease in cash flows provided by operating activities in the previous table was largely driven by an increase in natural gas purchases, as discussed in Note 13, partially offset by the associated deferred taxes. Also contributing to the decrease was higher working capital requirementsneeds at the construction services and construction materials and contracting businesses. Both businesses experienced increased estimated tax payments due to fluctuations in job activity resulting in higher receivables in the timingperiod, as well as lower collections of the paymentaccounts receivable compared to first half of quarterly income tax estimates2021, and the deferral of payroll taxesincreased asphalt oil inventory balances as a result of higher prices, offset in part by increased accounts payable. Decreased net income across all of the COVID-19 pandemic during 2020, andCompany's businesses also contributed to the construction services business experienced an increase in accounts payable from the fluctuation in job activity, which were slightly offset by the stronger collection of accounts receivable at the construction materials and contracting business.decreased cash flows. Partially offsetting the net decrease in cash flows provided by operating activities was the recovery of purchased gas adjustment balances and the absence of higher earningsnatural gas purchases in February 2021, as discussed in Note 13, partially offset by the associated deferred taxes at all businesses during the first half of 2021.natural gas distribution business.
Investing activities
Six Months Ended
Six Months EndedJune 30,
June 30, 2022 2021 Variance
2021 2020 Variance(In millions)
Components of net cash used in investing activities:Components of net cash used in investing activities:(In millions)Components of net cash used in investing activities:
Capital expendituresCapital expenditures$(261.9)$(248.8)$(13.1)Capital expenditures$(290.1)$(261.9)$(28.2)
Acquisitions, net of cash acquiredAcquisitions, net of cash acquired(13.7)(70.7)57.0 Acquisitions, net of cash acquired(.5)(13.7)13.2 
Net proceeds from sale or disposition of property and otherNet proceeds from sale or disposition of property and other12.4 23.0 (10.6)Net proceeds from sale or disposition of property and other4.3 12.4 (8.1)
InvestmentsInvestments(3.3)— (3.3)Investments(4.7)(3.3)(1.4)
Net cash used in investing activitiesNet cash used in investing activities$(266.5)$(296.5)$30.0 Net cash used in investing activities$(291.0)$(266.5)$(24.5)
The decreaseincrease in cash used in investing activities in the previous table was primarily due to lower cash used in acquisition activity in 2021 compared to 2020 at the construction services and construction materials and contracting businesses. Partially offsetting the decrease in cash used in investing activities were increased capital expenditures in 20212022 at the pipeline business, largely related to the North Bakken Expansion project as discussed previously,electric and at the construction materials and contracting businessnatural gas distribution businesses related to increased operatingelectric production projects, partially offset by lower capital expenditures atincluding the electric business related to reduced electric transmission projects.construction of Heskett Unit 4 and the repower of Diamond Willow, and higher natural gas distribution projects, including natural gas mains and meters. The pipelineconstruction services business also experienced lower proceeds from asset sales in 2022. Offsetting the increased cash used in investing activities was decreased capital expenditures at the pipeline business as a result of the sale of its natural gathering assets during 2020.North Bakken Expansion project being placed in service in February 2022 and lower cash used for acquisition activity at the construction materials and contracting business.
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Financing activities
Six Months Ended
Six Months EndedJune 30,
June 30, 2022 2021 Variance
2021 2020 Variance(In millions)
Components of net cash provided by financing activities:Components of net cash provided by financing activities:(In millions)Components of net cash provided by financing activities:
Issuance of short-term borrowingsIssuance of short-term borrowings$50.0 $75.0 $(25.0)Issuance of short-term borrowings$100.0 $50.0 $50.0 
Repayment of short-term borrowingsRepayment of short-term borrowings(50.0)— (50.0)Repayment of short-term borrowings— (50.0)50.0 
Issuance of long-term debtIssuance of long-term debt171.8 200.4 (28.6)Issuance of long-term debt334.3 171.8 162.5 
Repayment of long-term debtRepayment of long-term debt(48.1)(162.2)114.1 Repayment of long-term debt(147.5)(48.1)(99.4)
Proceeds from issuance of common stock54.6 3.4 51.2 
Debt issuance costsDebt issuance costs(1.1)— (1.1)
Net proceeds from issuance of common stockNet proceeds from issuance of common stock(.1)54.6 (54.7)
Dividends paidDividends paid(85.3)(83.2)(2.1)Dividends paid(88.4)(85.3)(3.1)
Repurchase of common stockRepurchase of common stock(6.7)— (6.7)Repurchase of common stock(7.4)(6.7)(.7)
Tax withholding on stock-based compensationTax withholding on stock-based compensation(4.2)(.4)(3.8)Tax withholding on stock-based compensation(5.0)(4.2)(.8)
Net cash provided by financing activitiesNet cash provided by financing activities$82.1 $33.0 $49.1 Net cash provided by financing activities$184.8 $82.1 $102.7 
The increase in cash provided by financing activities in the previous table was largely the result of lower repayments onincreased issuance of short-term and long-term debt at the construction services and construction materials and contracting businesses to fund higher working capital needs and at the natural gas distribution and pipeline businesses to fund capital expenditures. The issuances were partially offset by the repayment of commercial paper borrowings that were replaced by short-term debt and revolving credit agreements at Montana-Dakota during 2021. During 2021,private placement borrowings. Also partially offsetting the Company received increased net proceedsincrease in cash provided by financing activities was the absence of $51.2 million from the issuance of common stock under the Company's "at-the-market" offering. Partially offsetting the increaseoffering during 2022, as discussed in cash provided by financing activities were decreased long-term borrowings during 2021 at the natural gas distribution business, partially offset by an increase in long-term borrowings at the construction materials and contracting business for acquisitions. In addition, Montana-Dakota issued and repaid $50 million in short term borrowings during the first quarter of 2021. The issuance was related to financing the higher natural gas purchases, as previously discussed, and the repayment was related to short-term borrowings completed during 2020.Note 7.
Defined benefit pension plans
The Company has noncontributory qualified defined benefit pension plans. Various assumptions are used in calculating the benefit expense (income) and liability (asset) related to these plans, as such costs of providing these benefits bear the risk of changes as they are dependent upon assumptions of future conditions.
For 2022, the Company assumed a long-term rate of return on its qualified defined pension plan assets of 6 percent. Through June 30, 2022, due to the decline in the equity and fixed-income markets, the Company experienced a 21 percent loss on its qualified defined pension plan assets. Differences between actuarial assumptions and actual plan results are deferred and amortized into expense when the accumulated differences exceed 10 percent of the greater of the projected benefit obligation or the market-related value of plan assets. Therefore, this change in asset values will be reflected in future expenses of the plans, beginning in 2023.
There were no other material changes to the Company's qualified noncontributory defined benefit pension plans from those reported in the 20202021 Annual Report. For more information, see Note 18 and Part II, Item 7 in the 20202021 Annual Report.
Capital expenditures
Capital expenditures for the first six months of 2022 and 2021 were $280.6 million and $283.2 million, which includes the completed business combination of a construction aggregates business at the construction materials and contracting business. Capital expenditures for the first six months of 2020 were $310.6 million, which includes the completed business combinations at the construction materials and contracting and construction services businesses.respectively. Capital expenditures allocated to the Company's business segments are estimated to be approximately $805.9$747.2 million for 2021.2022. Capital expenditures have been updated from what was previously reported in the 20202021 Annual Report to accommodate project timeline and scope changes made throughout the first half of 2021. The Company will continue to monitor capital expenditures for project delays and changes in economic viability related to COVID-19.2022.
The Company has included in the estimated capital expenditures for 20212022 the completed business combination of a construction aggregatesWahpeton Expansion and additional growth projects at the pipeline business and construction of Heskett Unit 4 at the North Bakken Expansion project,electric business, as previously discussed in Business Segment Financial and Operating Data, as well as system upgrades; routine replacements; service extensions; routine equipment maintenance and replacements; buildings, land and building improvements; pipeline and natural gas storage projects; power generation and transmission opportunities, including certain costs for additional electric generating capacity; environmental upgrades; and other growth opportunities.
The Company continues to evaluate potential future acquisitions and other growth opportunities that would be incremental to the outlined capital program; however, such growth isthey are dependent upon the availability of economic opportunities and, as a result, capital expenditures may vary significantly from the estimate previously discussed. The Company continuously monitors its capital expenditures for project delays and changes in economic viability and adjusts as necessary. It is anticipated that all of the funds required for capital expenditures for 20212022 will be met fromfunded by various sources, including internally generated funds; credit facilities and commercial paper of the Company's subsidiaries, as described later; and issuance of debt and equity securities if necessary.
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Capital resources
The Company requires significant cash to support and grow its businesses. The primary sources of cash other than cash generated from operating activities are cash from revolving credit facilities, cash from the issuance of long-term debt and cash from the sale of equity securities.
CapitalDebt resources
Certain debt instruments of the Company's subsidiaries contain restrictive and financial covenants and cross-default provisions. In order to borrow under the respective debt instruments, the subsidiary companies must be in compliance with the applicable covenants and certain other conditions, all of which the subsidiaries, as applicable, were in compliance with at June 30, 2021.2022. In the event the subsidiaries do not comply with the applicable covenants and other conditions, alternative sources of funding may need to be pursued. For more information on the covenants, certain other conditions and cross-default provisions, see Part II, Item 8 in the 20202021 Annual Report.
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The following table summarizes the outstanding revolving credit facilities of the Company's subsidiaries at June 30, 2021:2022:
CompanyCompanyFacility Facility
Limit
 Amount
Outstanding
 Letters
of Credit
 Expiration
Date
CompanyFacility Facility
Limit
 Amount
Outstanding
 Letters
of Credit
 Expiration
Date
(In millions)(In millions)
Montana-Dakota Utilities Co.Montana-Dakota Utilities Co.Commercial paper/Revolving credit agreement(a)$175.0  $97.6 $—  12/19/24Montana-Dakota Utilities Co.Commercial paper/Revolving credit agreement(a)$175.0  $15.1 $—  12/19/24
Cascade Natural Gas CorporationCascade Natural Gas CorporationRevolving credit agreement $100.0 (b)$25.5  $2.2 (c)6/7/24Cascade Natural Gas CorporationRevolving credit agreement $100.0 (b)$8.7  $2.2 (c)6/7/24
Intermountain Gas CompanyIntermountain Gas CompanyRevolving credit agreement $85.0 (d)$23.1  $— 6/7/24Intermountain Gas CompanyRevolving credit agreement $85.0 (d)$21.2  $— 6/7/24
Centennial Energy Holdings, Inc.Centennial Energy Holdings, Inc.Commercial paper/Revolving credit agreement(e)$600.0  $199.8 $— 12/19/24Centennial Energy Holdings, Inc.Commercial paper/Revolving credit agreement(e)$600.0  $480.3 $— 12/19/24
(a)The commercial paper program is supported by a revolving credit agreement with various banks (provisions allow for increased borrowings, at the option of Montana-Dakota on stated conditions, up to a maximum of $225.0 million). At June 30, 2021,2022, there were no amounts outstanding under the revolving credit agreement.
(b)Certain provisions allow for increased borrowings, up to a maximum of $125.0 million.
(c)Outstanding letter(s) of credit reduce the amount available under the credit agreement.
(d)Certain provisions allow for increased borrowings, up to a maximum of $110.0 million.
(e)The commercial paper program is supported by a revolving credit agreement with various banks (provisions allow for increased borrowings, at the option of Centennial on stated conditions, up to a maximum of $700.0 million). At June 30, 2021,2022, there were no amounts outstanding under the revolving credit agreement.
The respective commercial paper programs are supported by revolving credit agreements. While the amount of commercial paper outstanding does not reduce available capacity under the respective revolving credit agreements, Montana-Dakota and Centennial do not issue commercial paper in an aggregate amount exceeding the available capacity under the credit agreements. The commercial paper borrowings may vary during the period, largely the result of fluctuations in working capital requirements due to the seasonality of certain operations of the Company's subsidiaries.
Total equity as a percent of total capitalization was 53 percent, 57 percent 55 percent and 5855 percent at June 30, 20212022 and 2020,2021, and December 31, 2020,2021, respectively. This ratio is calculated as the Company's total equity, divided by the Company's total capital. Total capital is the Company's total debt, including short-term borrowings and long-term debt due within one year, plus total equity. This ratio is an indicator of how a company is financing its operations, as well as its financial strength.

Cascade
On June 15, 2022, Cascade issued $50.0 million of senior notes under a note purchase agreement with maturity dates ranging from June 15, 2032 to June 15, 2052, at a weighted average interest rate of 4.50 percent. The agreement contains customary covenants and provisions, including a covenant of Cascade not to permit, at any time, the ratio of total debt to total capitalization to be greater than 65 percent.
Intermountain On June 15, 2022, Intermountain issued $40.0 million of senior notes under a note purchase agreement with maturity dates ranging from June 15, 2052 to June 15, 2062, at a weighted average interest rate of 4.68 percent. The agreement contains customary covenants and provisions, including a covenant of Intermountain not to permit, at any time, the ratio of total debt to total capitalization to be greater than 65 percent.
Centennial On March 18, 2022, Centennial entered into a $100.0 million term loan agreement with a SOFR-based variable interest rate and a maturity date of March 17, 2023. The agreement contains customary covenants and provisions, including a covenant of Centennial not to permit, at any time, the ratio of total debt to total capitalization to be greater than 65 percent. The covenants also include certain restrictions on the sale of certain assets, loans and investments.
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On March 23, 2022, Centennial issued $150.0 million of senior notes under a note purchase agreement with maturity dates ranging from March 23, 2032 to March 23, 2034, at a weighted average interest rate of 3.71 percent. The agreement contains customary covenants and provisions, including a covenant of Centennial not to permit, at any time, the ratio of total debt to total capitalization to be greater than 60 percent.
Equity Resources
The Company currently has a shelf registration statement on file with the SEC, under which the Company may issue and sell any combination of common stock and debt securities. The Company may sell such securities if warranted by market conditions and the Company's capital requirements.
In August 2020, the Company amended the Distribution Agreement dated February 22, 2019, with J.P. Morgan Securities LLC and MUFG Securities Americas Inc., as sales agents. This agreement, as amended, allows the offering, issuance and sale of up to 6.4 million shares of the Company's common stock in connection with an "at-the-market" offering. The common stock may be offered for sale, from time to time, in accordance with the terms and conditions of this agreement. As of June 30, 2021,2022, the Company had capacity to issue up to 4.63.6 million additional shares of common stock under the "at-the-market" offering program. Proceeds from the sale of shares of common stock under this agreement have been and are expected to be used for general corporate purposes, which may include, among other things, working capital, capital expenditures, debt repayment and the financing of acquisitions.
Details of the Company's "at-the-market" offering activity was as follows:
Three Months EndedSix Months EndedThree Months EndedSix Months Ended
June 30,June 30,June 30,
20212020202120202022202120222021
(In millions)(In millions)
Shares issuedShares issued1.1 — 1.8 — Shares issued— 1.1 — 1.8 
Net proceeds *Net proceeds *$34.9 $— $54.6 $— Net proceeds *$— $34.9 **$(.1)$54.6 **
Issuance costs$.4 $— $.7 $— 
*    Net proceeds include issuance costs of $22,000 and $149,000 for the three and six months ended June 30, 2022, respectively, and $443,000 and $743,000 for the three and six months ended June 30, 2021, respectively.
**    Net proceeds were used for capital expenditures.
Montana-Dakota On March 8, 2021, Montana-Dakota entered into a $50.0 million term loan agreement with a LIBOR-based variable interest rate and a maturity date of March 7, 2022. The agreement contains customary covenants and provisions, including a covenant of Montana-Dakota not to permit, at any time, the ratio of total debt to total capitalization to be greater than 65 percent. The covenants also include certain restrictions
Material cash requirements
For more information on the sale of certain assets, loansCompany's contractual obligations on long-term debt, operating leases and investments.
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Off balance sheet arrangements
At June 30,purchase commitments, see Part II, Item 7 in the 2021 the Company had no material off balance sheet arrangements.
Contractual obligations and commercial commitments
Annual Report. There were no material changes in the Company's contractual obligations relatingrelated to estimated interest payments, asset retirement obligations, uncertain tax positions and minimum funding requirements for its defined benefit plans for 20212022 from those reported in the 20202021 Annual Report.
At June 30, 2022, the Company's future estimated interest payments increased 12 percent since December 31, 2021, due to higher debt balances and rising interest rates. The Company has entered into variousexpects interest rates will continue to increase in the last half of 2022 as indicated by the Federal Reserve. At June 30, 2022, the Company's future purchase commitments increased 14 percent since December 31, 2021, largely consisting of contracts fordue to higher natural gas costs and coal supply; purchased power;contract extensions associated with natural gas transportationsupply at the natural gas distribution business and storage; royalties; information technology;increases to the cost of asphalt oil at the construction materials and construction materials. Certain ofcontracting business. It is anticipated that these contracts are subject to variability in volume and price. The commitments under these contractsitems will be funded by various sources, including internally generated funds, as of June 30, 2021, were:
Less than 1 year1-3 years3-5 yearsMore than 5 yearsTotal
(In millions)
Purchase commitments$615.0 $392.2 $208.7 $799.4 $2,015.3 
For more information on contractual obligationswell as credit facilities and commercial paper of the Company's subsidiaries.
Material short-term cash requirements of the Company include repayment of outstanding borrowings and interest payments on those agreements, payments on operating lease agreements, payment of obligations on purchase commitments see Part II, Item 7 inand asset retirement obligations.
Material long-term cash requirements of the 2020 Annual Report.Company include repayment of outstanding borrowings and interest payments on those agreements, payments on operating lease agreements, payment of obligations on purchase commitments and asset retirement obligations.
New Accounting Standards
For information regarding new accounting standards, see Note 2, which is incorporated by reference.
Critical Accounting Estimates
The Company's critical accounting estimates include impairment testing of goodwill; fair values of acquired assets and liabilities under the acquisition method of accounting; regulatory assets expected to be recovered in rates charged to customers; revenue recognized using the cost-to-cost measure of progress for contracts; actuarially determined benefit costs; and tax provisions. There
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were no material changes in the Company's critical accounting estimates from those reported in the 20202021 Annual Report. For more information on critical accounting estimates, see Part II, Item 7 in the 20202021 Annual Report.
Non-GAAP Financial Measures
The Business Segment Financial and Operating Data includes financial information prepared in accordance with GAAP, as well as another financial measure, adjusted gross margin, that is considered a non-GAAP financial measure as it relates to the Company's electric and natural gas distribution segments. The presentation of adjusted gross margin is intended to be a useful supplemental financial measure for investors’ understanding of the segments' operating performance. This non-GAAP financial measure should not be considered as an alternative to, or more meaningful than, GAAP financial measures such as operating income (loss) or net income (loss). The Company's non-GAAP financial measure, adjusted gross margin, is not standardized; therefore, it may not be possible to compare this financial measure with other companies’ gross margin measures having the same or similar names.
In addition to operating revenues and operating expenses, management also uses the non-GAAP financial measure of adjusted gross margin when evaluating the results of operations for the electric and natural gas distribution segments. Adjusted gross margin for the electric and natural gas distribution segments is calculated by adding back adjustments to operating income (loss). These add-back adjustments include: operation and maintenance expense; depreciation, depletion and amortization expense; and certain taxes, other than income.
Adjusted gross margin includes operating revenues less the cost of electric fuel and purchased power, purchased natural gas sold and certain taxes, other than income. These taxes, other than income, included as a reduction to adjusted gross margin relate to revenue taxes. These segments pass on to their customers the increases and decreases in the wholesale cost of power purchases, natural gas and other fuel supply costs in accordance with regulatory requirements. As such, the segments' revenues are directly impacted by the fluctuations in such commodities. Revenue taxes, which are passed back to customers, fluctuate with revenues as they are calculated as a percentage of revenues. For these reasons, period over period, the segments' operating income (loss) is generally not impacted. The Company's management believes the adjusted gross margin is a useful supplemental financial measure as these items are included in both operating revenues and operating expenses. The Company's management also believes that adjusted gross margin and the remaining operating expenses that calculate operating income (loss) are useful in assessing the Company's utility performance as management has the ability to influence control over the remaining operating expenses.
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The following information reconciles operating income to adjusted gross margin for the electric segment.
Three Months EndedSix Months Ended
June 30,June 30,
 2021 2020 2021 2020 
(In millions)
Operating income$12.8 $12.8 $26.7 $27.6 
Adjustments:
Operating expenses:   
Operation and maintenance31.3 29.0 62.6 59.7 
Depreciation, depletion and amortization16.9 15.7 33.0 31.3 
Taxes, other than income4.5 4.4 9.2 8.7 
Total adjustments52.7 49.1 104.8 99.7 
Adjusted gross margin$65.5 $61.9 $131.5 $127.3 
The following information reconciles operating income to adjusted gross margin for the natural gas distribution segment.
Three Months EndedSix Months Ended
June 30,June 30,
 2021 2020 2021 2020 
(In millions)
Operating income$3.6 $.7 $57.2 $50.7 
Adjustments:
Operating expenses:
Operation and maintenance46.0 43.1 97.2 89.1 
Depreciation, depletion and amortization20.3 21.0 42.7 41.8 
Taxes, other than income6.7 6.0 13.8 12.1 
Total adjustments73.0 70.1 153.7 143.0 
Adjusted gross margin$76.6 $70.8 $210.9 $193.7 
Item 3. Quantitative and Qualitative Disclosures About Market Risk
The Company is exposed to the impact of market fluctuations associated with interest rates and commodity prices. The Company has policies and procedures to assist in controlling these market risks and from time to time has utilized derivatives to manage a portion of its risk.
Interest rate risk
There were no material changes to interest rate risk faced by the Company from those reported in the 20202021 Annual Report.
At June 30, 2021,2022, the Company had no outstanding interest rate hedges.
Commodity price risk
There were no material changes to commodity price risk faced by the Company from those reported in the 20202021 Annual Report.
Item 4. Controls and Procedures
Evaluation of disclosure controls and procedures
The term "disclosure controls and procedures" is defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act. The Company's disclosure controls and other procedures are designed to provide reasonable assurance that information required to be disclosed in the reports that the Company files or submits under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC's rules and forms. The Company's disclosure controls and other procedures are designed to provide reasonable assurance that information required to be disclosed is accumulated and communicated to management, including the Company's chief executive officer and chief financial officer, to allow timely decisions regarding required disclosure. The Company's management, with the participation of the Company's chief executive officer and chief financial officer, has evaluated the effectiveness of the Company's disclosure controls and other procedures as of the end of the period covered by this report. Based upon that evaluation, the chief executive officer and the chief financial officer have concluded that, as of the end of the period covered by this report, such controls and procedures were effective at a reasonable assurance level.
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Changes in internal controls
No change in the Company's internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) occurred during the three months ended June 30, 2021,2022, that has materially affected, or is reasonably likely to materially affect, the Company's internal control over financial reporting.
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Part II -- Other Information
Item 1. Legal Proceedings
There were no material changes to the Company's legal proceedings in Part 1, Item 3 - Legal Proceedings in the 20202021 Annual Report.
Item 1A. Risk Factors
Please refer to the Company's risk factors that are disclosed in Part I, Item 1A. Risk Factors in the 20202021 Annual Report that could be materially harmful to the Company's business, prospects, financial condition or financial results if they occur. At June 30, 2021,2022, there were no material changes to the Company's risk factors provided in Part I, Item 1A. Risk Factors in the 20202021 Annual Report other than as set forth below.
Technology disruptionsThe proposed separation of Knife River into an independent, publicly traded company is subject to various risks and uncertainties, and may not be completed on the terms or cyberattacks could adversely impacttimeline currently contemplated, if at all.
On August 4, 2022, the Company's operations.Company announced its plan to separate Knife River, the construction materials and contracting business, from the Company, resulting in two independent, publicly traded companies. The proposed separation is expected to be effected as a tax-free spinoff to the Company’s stockholders for U.S. federal income tax purposes and is expected to be completed in 2023, subject to the satisfaction of customary conditions, including final approval by the Company’s Board of Directors, receipt of a tax opinion and, if determined advisable, a private letter ruling from the IRS, and the effectiveness of a registration statement on Form 10 to be filed with the SEC.
The Company uses technology in substantially all aspectsexecution of the proposed separation will require significant time and attention from the Company’s senior management and employees, which could disrupt the Company’s ongoing business and adversely affect financial results and results of operations. The proposed separation is also complex, and completion of the proposed separation and the timing of its business operationscompletion will be subject to a number of factors and requires uninterrupted operationconditions, including the readiness of information technologythe new company to operate as an independent public company and operation technology systems, including disaster recovery and backup systems and network infrastructure. Whilefinalization of the Company has policies, procedures and processes in place designed to strengthen and protect these systems, they may be vulnerable to physical and cybersecurity failurescapital structure of the new company. Unanticipated developments could delay, prevent or unauthorized access, due to:
hacking,
human error,
theft,
sabotage,
malicious software,
ransomware,
third-party compromise,
acts of terrorism,
acts of war,
acts of nature or
other causes.
Although there are manual processes in place, should a compromise or system failure occur, interdependencies to technology may disrupt the Company's ability to fulfill critical business functions. This may include interruption of electric generation, transmission and distribution facilities, natural gas storage and pipeline facilities and facilities for delivery of construction materials or other products and services, any of which couldotherwise adversely affect the Company's reputation,proposed separation, including, but not limited to, changes in general economic and financial market conditions, material adverse changes in business cash flowsor industry conditions, unanticipated costs and resultspotential problems or delays in obtaining various regulatory and tax approvals or clearances. In particular, changes in interest or exchange rates and the effects of operationsinflation could delay or subject the Company to legal or regulatory liabilities and increased costs. Additionally, the Company's electric generation and transmission systems and natural gas pipelines are part of interconnected systems with other operators’ facilities; therefore, a cyber-related disruption in another operator’s system could negatively impact the Company's business.
The Company’s accounting systems and its ability to collect information and invoice customers for products and services could be disrupted. If the Company’s operations are disrupted, it could result in decreased revenues and remediation costs that could adversely affect the Company's results of operations and cash flows.
The Company is subject to cybersecurity and privacy laws and regulations of many government agencies,proposed separation, including TSA, FERC and NERC. NERC issues comprehensive regulations and standards surrounding the security of bulk power systems and continually updates these requirements, as well as establishing new requirementsin connection with which the utility industry must comply. As these regulations evolve, the Company may experience increased compliance costs and may be at higher risk for violating these standards. Experiencing a cybersecurity incident could cause the Company to be non-compliant with applicable laws and regulations, causing the Company to incur costs related to legal claims, proceedings and regulatory fines or penalties.
The Company, through the ordinary course of business, requires access to sensitive customer, employee and Company data. While the Company has implemented extensive security measures, including limiting the amount of sensitive information retained, a breach of its systems could compromise sensitive data and could go unnoticed for some time. Such an event could result in negative publicity and reputational harm, remediation costs, legal claims and fines that could have an adverse effect on the Company's financial results. Third-party service providers that perform critical business functions for the Company or have access to sensitive information within the Company also may be vulnerable to security breaches and information technology risks that could adversely affect the Company.
The Company’s information systems experience ongoing and often sophisticated cyberattacks by a variety of sources with the apparent aim to breach the Company's cyber-defenses. Although the incidents the Company has experienced to date have not had a material effect on its business, financial condition or results of operations, such incidents could have a material adverse effect in the future as cyberattacks continue to increase in frequency and sophistication. The Company is continuously reevaluating the need to upgrade and/or replace systems and network infrastructure. These upgrades and/or replacements could adversely impact
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operations by imposing substantial capital expenditures, creating delays or outages, or experiencing difficulties transitioning to new systems. System disruptions, if not anticipated and appropriately mitigated, could adversely affect the Company.
The Company's participation in joint venture contracts may have a negative impact on its reputation, business operations, revenues, results of operations, liquidity and cash flows.
The Company enters into certain joint venture arrangements typically to bid and execute particular projects. Generally, these agreements are directly with a third-party client; however, services may be performed by the venture, the joint venture partners or a combination thereof. Engaging in joint venture contracts exposes the Company to risks and uncertainties, some of which are outside the Company's control.
The Company is reliant on joint venture partners to satisfy their contractual obligations, including obligations to commit working capital and equity, and to perform the work as outlined in the agreement. Failure to do so could result in the Company providing additional investments or services to address such performance issues. If the Company is unable to satisfactorily resolve any partner performance issues, the customer could terminate the contract opening the Company to legal liability which could negatively impact the Company's reputation, revenues, results of operations, liquidity and cash flows.
COVID-19 may have a negative impact on the Company's business operations, revenues, results of operations, liquidity and cash flows.
The ongoing COVID-19 pandemic has disrupted national, state and local economies. To the extent the COVID-19 pandemic adversely impacts the Company's businesses, operations, revenues, liquidity or cash flows, it could also have a heightening effect on other risks described in the 2020 Annual Report. The degree to which COVID-19 will impact the Company depends on future developments, including the resurgence and/or variants of the virus, actions taken by governmental authorities, effectiveness of vaccines being administered, and the pace and extent to which the economy recovers and returns to relatively normal operating conditions.
The Company’s businesses have generally been deemed essential service providers and have experienced some inefficiencies and interruptions on its businesses from the pandemic. The Company could be materially affected if its services were deemed no longer essential or if conditions worsen and new restrictions are imposed by national or local governmental authorities.
The Company's operations have experienced minor disruptions due to shortages of employees or third-party contractors and altered work operations. If a significant percentage of the Company's workforce are unable to work because of illness, quarantine or government restrictionsdebt financing transactions undertaken in connection with the COVID-19 pandemic,separation or the Company's operations mayterms of any indebtedness incurred in connection therewith. There can be negatively impacted, potentially adversely affecting its business, operations, revenues, liquidity and cash flows.
In response to the COVID-19 pandemic,no assurances that the Company implemented a remote work environment for a portionwill be able to complete the proposed separation on the terms or on the timeline that was announced, if at all. In addition, if the separation is completed, the Company may not be able to achieve the full strategic and financial benefits that are expected to result from the separation. There can be no assurance that the combined value of the Company's workforce. As of July 2021, many of these employees have returned to their office; however, some employees have transitioned to a permanent remote work environment. The increase in remote work and longevitycommon stock of the pandemic may create increased vulnerabilitytwo companies will be equal to cybersecurity incidents affectingor greater than what the value of the Company’s ability to maintain secure operations, communications and productivity. To date,common stock would have been had the Company hasproposed separation not experienced any significant delays or information technology disruptions as a result of the COVID-19 pandemic.
Other factors associated with the COVID-19 pandemic that could impact the Company's businesses and future operating results, revenues and liquidity include impacts related to the health, safety, and availability of employees and contractors; extended rise in unemployment; public and private sector budget changes and constraints; continued flexible payment plans; counterparty credit; costs and availability of supplies; capital construction and infrastructure operation and maintenance programs; financing plans; pension valuations; travel restrictions; and legal and regulatory matters, including the potential for delayed regulatory filings, accounting for the impacts of the COVID-19 pandemic and recovery of invested capital. The economic and market disruptions resulting from COVID-19 could also lead to greater than normal uncertainty with respect to the realization of estimated amounts, including estimates for backlog, revenue recognition, intangible assets, other investments and provisions for credit losses.
54
occurred.

Index
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds
The following table includes information with respect to the Company's purchase of equity securities:
ISSUER PURCHASES OF EQUITY SECURITIES
Period(a)
Total Number
of Shares
(or Units)
Purchased (1)
(b)
Average Price
Paid per Share
(or Unit)
(c)
Total Number of Shares
(or Units) Purchased
as Part of Publicly
Announced Plans
or Programs (2)
(d)
Maximum Number (or
Approximate Dollar
Value) of Shares (or
Units) that May Yet Be
Purchased Under the
Plans or Programs (2)
April 1 through April 30, 20212022— $— — — 
May 1 through May 31, 20212022— $— — — 
June 1 through June 30, 20212022— $— — — 
Total— $— — — 
(1)    Represents shares of common stock purchased on the open market in connection with the vesting of shares granted pursuant to the Long-Term Performance-Based Incentive Plan.
(2)    Not applicable. The Company does not currently have in place any publicly announced plans or programs to purchase equity securities.
55

Index
Item 4. Mine Safety Disclosures
For information regarding mine safety violations or other regulatory matters required by Section 1503(a) of the Dodd-Frank Act and Item 104 of Regulation S-K, see Exhibit 95 to this Form 10-Q, which is incorporated herein by reference.
Item 5. Other Information
None.
Item 6. Exhibits
See the index to exhibits immediately preceding the signature page to this report.
5556

Index
Exhibits Index
Incorporated by Reference
Exhibit NumberExhibit DescriptionFiled
Herewith
FormPeriod
Ended
ExhibitFiling
Date
File Number
3(a)8-K3.25/8/191-03480
3(b)8-K3.12/15/191-03480
+10(b)X
31(a)X
31(b)X
32X
95X
101.INSXBRL Instance Document - the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document
101.SCHXBRL Taxonomy Extension Schema Document
101.CALXBRL Taxonomy Extension Calculation Linkbase Document
101.DEFXBRL Taxonomy Extension Definition Linkbase Document
101.LABXBRL Taxonomy Extension Label Linkbase Document
101.PREXBRL Taxonomy Extension Presentation Linkbase Document
104Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)
+    Management contract, compensatory plan or arrangement.
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Index
Signatures
Pursuant to the requirements of the Exchange Act, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.
  MDU RESOURCES GROUP, INC.
    
DATE:August 5, 20212022BY:/s/ Jason L. Vollmer
   Jason L. Vollmer
   Vice President and Chief Financial Officer
    
    
  BY:/s/ Stephanie A. Barth
   Stephanie A. Barth
   Vice President, Chief Accounting Officer
and Controller


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