UNITED STATES SECURITIES AND EXCHANGE COMMISSION
                         WASHINGTON, D.C. 20549

                                FORM 10-Q



          X  QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF
                   THE SECURITIES EXCHANGE ACT OF 1934

            FOR THE QUARTERLY PERIOD ENDED SEPTEMBER 30, 2001

                                   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 1-3480

                        MDU Resources Group, Inc.

         (Exact name of registrant as specified in its charter)


            Delaware                       41-0423660
(State or other jurisdiction of        (I.R.S. Employer
 incorporation or organization)       Identification No.)

                         Schuchart Building
                       918 East Divide Avenue
                            P.O. Box 5650
                  Bismarck, North Dakota 58506-5650
                (Address of principal executive offices)
                               (Zip Code)

                             (701) 222-7900
          (Registrant's telephone number, including area code)


    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 X.  No.

    Indicate the number of shares outstanding of each of the
issuer's classes of common stock, as of October 19, 2001: 69,147,245
shares.
                            INTRODUCTION


    This Form 10-Q contains forward-looking statements within the
meaning of Section 21E of the Securities Exchange Act of 1934.
Forward-looking statements should be read with the cautionary
statements and important factors included in this Form 10-Q at Item
2 -- Management's Discussion and Analysis of Financial Condition and
Results of Operations -- Safe Harbor for Forward-looking Statements.
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.

    MDU Resources Group, Inc. (company) is a diversified natural
resource company which was incorporated under the laws of the State
of Delaware in 1924.  Its principal executive offices are at the
Schuchart Building, 918 East Divide Avenue, P.O. Box 5650, Bismarck,
North Dakota 58506-5650, telephone (701) 222-7900.

    Montana-Dakota Utilities Co. (Montana-Dakota), a public utility
division of the company, through the electric and natural gas
distribution segments, generates, transmits and distributes
electricity, distributes natural gas and provides related value-
added products and services in Montana, North Dakota, South Dakota
and Wyoming.  Great Plains Natural Gas Co. (Great Plains), another
public utility division of the company, distributes natural gas in
southeastern North Dakota and western Minnesota.

    The company, through its wholly owned subsidiary, Centennial
Energy Holdings, Inc. (Centennial), owns WBI Holdings, Inc. (WBI
Holdings), Knife River Corporation (Knife River), Utility Services,
Inc. (Utility Services) and Centennial Holdings Capital Corp.
(Centennial Capital).

    WBI Holdings is comprised of the pipeline and energy
    services and the natural gas and oil production segments.
    The pipeline and energy services segment provides natural
    gas transportation, underground storage and gathering
    services through regulated and nonregulated pipeline
    systems in the Rocky Mountain, Midwest, Southern and
    Central regions of the United States and provides energy-
    related marketing and management services.  The natural gas
    and oil production segment is engaged in natural gas and
    oil acquisition, exploration and production primarily in
    the Rocky Mountain region of the United States and in the
    Gulf of Mexico.

    Knife River mines and markets aggregates and related value-
    added construction materials products and services in
    Alaska, California, Hawaii, Minnesota, Montana, Oregon,
    Washington and Wyoming.

    Utility Services is a diversified infrastructure
    construction company specializing in electric, natural gas
    and telecommunication utility construction as well as
    interior industrial electrical, exterior lighting and
    traffic signalization.  Utility Services has engineering,
    design and build capability and provides related specialty
    equipment sales and rental services throughout most of the
    United States.

    Centennial Capital invests in new growth and synergistic
    opportunities which are not directly being pursued by the
    existing business units but which are consistent with the
    company's philosophy and growth strategy.

    The company, through its wholly owned subsidiary, MDU Resources
International, Inc., invests in projects outside the United States
which are consistent with the company's philosophy, growth strategy
and areas of expertise.



                              INDEX


Part I -- Financial Information

  Consolidated Statements of Income --
    Three and Nine Months Ended September 30, 2001 and 2000

  Consolidated Balance Sheets --
    September 30, 2001 and 2000, and December 31, 2000

  Consolidated Statements of Cash Flows --
    Nine Months Ended September 30, 2001 and 2000

  Notes to Consolidated Financial Statements

  Management's Discussion and Analysis of Financial
    Condition and Results of Operations

  Quantitative and Qualitative Disclosures About Market Risk

Part II -- Other Information

Signatures

Exhibit Index

Exhibits


                    PART I -- FINANCIAL INFORMATION

ITEM 1.  FINANCIAL STATEMENTS

                       MDU RESOURCES GROUP, INC.
                   CONSOLIDATED STATEMENTS OF INCOME
                              (Unaudited)


                                        Three Months         Nine Months
                                           Ended                Ended
                                        September 30,       September 30,
                                        2001     2000      2001       2000
                                     (In thousands, except per share amounts)

Operating revenues                    $551,680 $530,834 $1,739,345 $1,265,802

Operating expenses:
 Fuel and purchased power               14,982   13,399     42,703     39,603
 Purchased natural gas sold             36,840  123,132    502,394    389,906
 Operation and maintenance             356,677  277,512    823,052    582,511
 Depreciation, depletion and
  amortization                          36,205   28,686    102,737     75,130
 Taxes, other than income               13,737   12,082     41,352     32,121
                                       458,441  454,811  1,512,238  1,119,271

Operating income                        93,239   76,023    227,107    146,531
Other income -- net                      1,855    1,947     16,416      8,624
Interest expense                        11,459   13,333     34,171     34,539
Income before income taxes              83,635   64,637    209,352    120,616
Income taxes                            32,889   24,645     82,502     46,133
Net income                              50,746   39,992    126,850     74,483
Dividends on preferred stocks              190      191        571        575
Earnings on common stock              $ 50,556 $ 39,801 $  126,279 $   73,908
Earnings per common share -- basic    $    .75 $    .63 $     1.89 $     1.23
Earnings per common share -- diluted  $    .74 $    .63 $     1.87 $     1.23
Dividends per common share            $    .23 $    .22 $      .67 $      .64
Weighted average common shares
 outstanding -- basic                   67,650   62,975     66,781     60,015
Weighted average common shares
 outstanding -- diluted                 68,127   63,345     67,519     60,238


The accompanying notes are an integral part of these consolidated statements.

                              MDU RESOURCES GROUP, INC.
                             CONSOLIDATED BALANCE SHEETS
                                    (Unaudited)

                                     September 30, September 30, December 31,
                                         2001          2000         2000
                                                 (In thousands)
ASSETS
Current assets:
 Cash and cash equivalents             $   57,817    $   47,267   $   36,512
 Receivables                              357,027       284,491      342,354
 Inventories                               95,669        76,065       64,017
 Deferred income taxes                     14,839         7,043        8,048
 Prepayments and other current assets      27,722        43,992       29,355
                                          553,074       458,858      480,286
Investments                                37,917        41,480       41,380
Property, plant and equipment           2,718,035     2,424,888    2,496,123
Less accumulated depreciation,
 depletion and amortization               919,212       862,148      895,109
                                        1,798,823     1,562,740    1,601,014
Deferred charges and other assets         282,657       182,791      190,279
                                       $2,672,471    $2,245,869   $2,312,959

LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
 Short-term borrowings                 $      ---    $   12,000   $    8,000
 Long-term debt and preferred
   stock due within one year               11,131         6,407       19,695
 Accounts payable                         141,950       131,003      171,929
 Taxes payable                             28,984         9,372       10,437
 Dividends payable                         15,840        14,385       14,423
 Other accrued liabilities,
   including reserved revenues             91,191        79,135       59,989
                                          289,096       252,302      284,473
Long-term debt                            843,915       758,170      728,166
Deferred credits and other liabilities:
 Deferred income taxes                    327,560       262,034      281,000
 Other liabilities                        118,013       119,926      121,860
                                          445,573       381,960      402,860
Preferred stock subject to mandatory
 redemption                                 1,400         1,500        1,400
Commitments and contingencies
Stockholders' equity:
 Preferred stocks                          15,000        15,000       15,000
 Common stockholders' equity:
  Common stock (Shares issued --
    $1.00 par value, 69,386,316
    at September 30, 2001, 64,466,401 at
    September 30, 2000 and 65,267,567 at
    December 31, 2000)                     69,386        64,466       65,268
   Other paid-in capital                  626,655       497,572      518,771
   Retained earnings                      381,752       278,525      300,647
   Accumulated other comprehensive
     income                                 3,320           ---          ---
   Treasury stock at cost - 239,521
     shares                                (3,626)       (3,626)      (3,626)
     Total common stockholders' equity  1,077,487       836,937      881,060
   Total stockholders' equity           1,092,487       851,937      896,060
                                       $2,672,471    $2,245,869   $2,312,959


The accompanying notes are an integral part of these consolidated statements.

                       MDU RESOURCES GROUP, INC.
                 CONSOLIDATED STATEMENTS OF CASH FLOWS
                              (Unaudited)

                                                            Nine Months Ended
                                                              September 30,
                                                             2001       2000
                                                              (In thousands)
Operating activities:
Net income                                                 $126,850   $74,483
Adjustments to reconcile net income to net cash provided
 by operating activities:
 Depreciation, depletion and amortization                   102,737    75,130
 Deferred income taxes and investment tax credit              8,448    20,627
 Changes in current assets and liabilities, net of
   acquisitions:
   Receivables                                               54,776   (63,224)
   Inventories                                              (26,844)   (2,563)
   Other current assets                                       7,460   (18,584)
   Accounts payable                                         (55,426)   19,695
   Other current liabilities                                 43,667    14,792
 Other noncurrent changes                                    (2,867)      676

Net cash provided by operating activities                   258,801   121,032

Investing activities:
Capital expenditures including acquisitions of businesses  (340,572) (323,225)
Net proceeds from sale or disposition of property            34,847     5,092
Net capital expenditures                                   (305,725) (318,133)
Investments                                                   3,041     2,001
Additions to notes receivable                                   ---    (5,000)
Proceeds from notes receivable                                4,000     4,000

Net cash used in investing activities                      (298,684) (317,132)

Financing activities:
Net change in short-term borrowings                          (8,000)   (3,242)
Issuance of long-term debt                                  158,807   201,815
Repayment of long-term debt                                 (96,031)  (20,461)
Issuance of common stock                                     52,157    27,278
Dividends paid                                              (45,745)  (39,527)

Net cash provided by financing activities                    61,188   165,863

Increase (decrease) in cash and cash equivalents             21,305   (30,237)
Cash and cash equivalents -- beginning of year               36,512    77,504

Cash and cash equivalents -- end of period                 $ 57,817  $ 47,267


The accompanying notes are an integral part of these consolidated statements.

                      MDU RESOURCES GROUP, INC.
                        NOTES TO CONSOLIDATED
                        FINANCIAL STATEMENTS

                     September 30, 2001 and 2000
                             (Unaudited)

1.   Basis of presentation

         The accompanying consolidated interim financial statements
     were prepared in conformity with the basis of presentation
     reflected in the consolidated financial statements included in
     the Annual Report to Stockholders for the year ended
     December 31, 2000 (2000 Annual Report), and the standards of
     accounting measurement set forth in Accounting Principles Board
     Opinion No. 28 and any amendments thereto adopted by the
     Financial Accounting Standards Board.  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 company's 2000 Annual Report.  The information is
     unaudited but includes all adjustments which are, in the
     opinion of management, necessary for a fair presentation of the
     accompanying consolidated interim financial statements.

 2.  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 may not be indicative of results for the
     full fiscal year.

 3.  Cash flow information

         Cash expenditures for interest and income taxes were as
     follows:
                                               Nine Months Ended
                                                  September 30,
                                                2001       2000
                                                (In thousands)

     Interest, net of amount capitalized       $28,158   $28,520
     Income taxes                              $57,528   $25,946

4.   Reclassifications

         Certain reclassifications have been made in the financial
     statements for the prior period to conform to the current
     presentation.  Such reclassifications had no effect on net
     income or common stockholders' equity as previously reported.

5.   Impairment testing of natural gas and oil properties

         The company uses the full-cost method of accounting for its
     natural gas and oil production activities.  Under this method,
     all costs incurred in the acquisition, exploration and
     development of natural gas and oil properties are capitalized
     and amortized on the units of production method based on total
     proved reserves.  Any conveyances of properties, including
     gains or losses on abandonments of properties, are treated as
     adjustments to the cost of the properties with no gain or loss
     recognized.  Capitalized costs are subject to a "ceiling test"
     that limits such costs to the aggregate of the present value of
     future net revenues of proved reserves based on single point in
     time spot market prices, as mandated under the rules of the
     Securities and Exchange Commission, and the lower of cost or
     fair value of unproved properties.  Future net revenue is
     estimated based on end-of-quarter spot market prices adjusted
     for contracted price changes.  If capitalized costs exceed the
     full-cost ceiling at the end of any quarter, a permanent
     noncash write-down is required to be charged to earnings in
     that quarter unless subsequent price changes eliminate or
     reduce an indicated write-down.

         Due to aberrantly low spot natural gas prices that existed
     on the last trading day of the quarter, the company's
     capitalized costs under the full-cost method of accounting
     exceeded the full-cost ceiling at September 30, 2001.  The
     lower natural gas prices were largely attributable to a sharp
     decline in nationwide spot market prices, especially natural
     gas prices in the Rocky Mountain region, over a relatively
     short period of time following the terrorist attacks on New
     York and Washington, D.C. on September 11, 2001, and prior to
     October 1, 2001. Oil prices likewise experienced a sharp drop
     during this same period.  The company believes the decline in
     natural gas prices does not reflect the economics of its
     production assets in that natural gas prices actually being
     received by the company at the end of the quarter were
     significantly higher than the spot market prices at that time.
     In addition, historic natural gas prices have also generally
     been much higher and only a small portion of the company's
     natural gas is sold using spot market pricing.  As of September
     30, 2001, the capitalized costs exceeded the full-cost ceiling
     and would have resulted in a write-down of the company's
     natural gas and oil properties in the amount of approximately
     $32 million after tax.  However, subsequent to September 30,
     2001, natural gas prices both nationwide and in the Rocky
     Mountain region increased significantly, thereby eliminating
     the need for a write-down of the company's natural gas and oil
     producing properties.

6.   New accounting pronouncements

         In June 2001, the Financial Accounting Standards Board
     (FASB) approved Statement of Financial Accounting Standards No.
     141, "Business Combinations" (SFAS No. 141).  SFAS No. 141
     requires that all business combinations be accounted for using
     the purchase method of accounting.  The use of the pooling-of-
     interest method of accounting for business combinations is
     prohibited.  The provisions of SFAS No. 141 apply to all
     business combinations initiated after June 30, 2001.  The
     company is accounting for business combinations after June 30,
     2001, in accordance with SFAS No. 141.

         In June 2001, the FASB approved Statement of Financial
     Accounting Standards No. 142, "Goodwill and Other Intangible
     Assets" (SFAS No. 142). SFAS No. 142 changes the accounting for
     goodwill and intangible assets and requires that goodwill no
     longer be amortized but be tested for impairment at least
     annually at the reporting unit level in accordance with SFAS
     No. 142.  Recognized intangible assets should be amortized over
     their useful life and reviewed for impairment in accordance
     with FASB Statement of Financial Accounting Standards No. 121,
     "Accounting for the Impairment of Long-Lived Assets and for
     Long-Lived Assets to Be Disposed Of."  The provisions of SFAS
     No. 142 are effective for fiscal years beginning after December
     15, 2001, except for provisions related to the nonamortization
     and amortization of goodwill and intangible assets acquired
     after June 30, 2001, which will be subject immediately to the
     provisions of SFAS No. 142.  The company will adopt SFAS No.
     142 on January 1, 2002.  The company will cease amortization of
     its recorded goodwill in place at June 30, 2001, on January 1,
     2002.  The company has not yet quantified the effects of
     adopting SFAS No. 142 on its financial position or results of
     operations.

         In June 2001, the FASB approved Statement of Financial
     Accounting Standards No. 143, "Accounting for Asset Retirement
     Obligations" (SFAS No. 143).  SFAS No. 143 requires entities to
     record the fair value of a liability for an asset retirement
     obligation in the period in which it is incurred.  When the
     liability is initially recorded, the entity capitalizes a cost
     by increasing the carrying amount of the related long-lived
     asset.  Over time, the liability is accreted to its present
     value each period, and the capitalized cost is depreciated over
     the useful life of the related asset.  Upon settlement of the
     liability, an entity either settles the obligation for the
     recorded amount or incurs a gain or loss upon settlement.  SFAS
     No. 143 is effective for fiscal years beginning after June 15,
     2002.  The company will adopt SFAS No. 143 on January 1, 2003,
     but has not yet quantified the effects of adopting SFAS No. 143
     on its financial position or results of operations.

         In August 2001, the FASB approved Statement of Financial
     Accounting Standards No. 144, "Accounting for the Impairment or
     Disposal of Long-Lived Assets" (SFAS No. 144).  SFAS No. 144
     supersedes FASB Statement of Financial Accounting Standards No.
     121, "Accounting for the Impairment of Long-Lived Assets and
     for Long-Lived Assets to Be Disposed Of" (SFAS No. 121).  SFAS
     No. 121 did not address the accounting for a segment of a
     business accounted for as a discontinued operation which
     resulted in two accounting models for long-lived assets to be
     disposed of.  SFAS No. 144 establishes a single accounting
     model for long-lived assets to be disposed of by sale and
     requires that those long-lived assets be measured at the lower
     of carrying amount or fair value less cost to sell, whether
     reported in continuing operations or in discontinued
     operations.  SFAS No. 144 is effective for fiscal years
     beginning after December 15, 2001.  The company will adopt SFAS
     No. 144 on January 1, 2002, but has not yet quantified the
     effects of adopting SFAS No. 144 on its financial position or
     results of operations.

         The company adopted Statement of Financial Accounting
     Standards No. 133, "Accounting for Derivative Instruments and
     Hedging Activities" (SFAS No. 133), amended by Statement of
     Financial Accounting Standards No. 137, "Accounting for
     Derivative Instruments and Hedging Activities - Deferral of the
     Effective Date of FASB Statement No. 133" and Statement of
     Financial Accounting Standards No. 138, "Accounting for Certain
     Derivative Instruments and Certain Hedging Activities" (all
     such statements hereinafter referred to as SFAS No. 133) on
     January 1, 2001.  SFAS No. 133 establishes accounting and
     reporting standards requiring that every derivative instrument
     (including certain derivative instruments embedded in other
     contracts) be recorded on the balance sheet as either an asset
     or liability measured at its fair value.  SFAS No. 133 requires
     that changes in the derivative instrument's fair value be
     recognized currently in earnings unless specific hedge
     accounting criteria are met.  Special accounting for qualifying
     hedges allows derivative gains and losses to offset the related
     results on the hedged item in the income statement, and
     requires that a company must formally document, designate and
     assess the effectiveness of transactions that receive hedge
     accounting treatment.

         SFAS No. 133 requires that as of the date of initial
     adoption, the difference between the fair market value of
     derivative instruments recorded on the balance sheet and the
     previous carrying amount of those derivative instruments be
     reported in net income or other comprehensive income (loss), as
     appropriate, as the cumulative effect of a change in accounting
     principle in accordance with APB 20, "Accounting Changes."  On
     January 1, 2001, the company reported a net-of-tax cumulative-
     effect adjustment of $6.1 million in accumulated other
     comprehensive loss to recognize at fair value all derivative
     instruments that are designated as cash-flow hedging
     instruments, which the company expects to reflect in earnings,
     subject to changes in natural gas and oil market prices, over
     the twelve months ending December 31, 2001.  The transition to
     SFAS No. 133 did not have an effect on the company's net income
     at adoption.

7.   Derivative instruments

         As of September 30, 2001, the company held derivative
     instruments designated as cash flow hedging instruments.  All
     derivative instruments are recognized on the Consolidated
     Balance Sheets at fair value.

     Hedging activities

         The cash flow hedging instruments in place at September 30,
     2001, are comprised of natural gas and oil price swap
     agreements and an interest rate swap agreement.  The objective
     for holding the natural gas and oil price swap agreements is to
     manage a portion of the market risk associated with
     fluctuations in the price of natural gas and oil on the
     company's forecasted sales of natural gas and oil production.
     The objective for holding the interest rate swap agreement is
     to manage a portion of the company's interest rate risk on the
     forecasted issuances of fixed-rate debt under the company's
     commercial paper program.  The company designated each of the
     natural gas and oil price swap agreements as a hedge of the
     forecasted sale of natural gas and oil production and
     designated the interest rate swap agreement as a hedge of the
     risk of changes in interest rates on the company's forecasted
     issuances of fixed-rate debt under the company's commercial
     paper program.

         The company's policy allows the use of derivative
     instruments as part of an overall energy price and interest
     rate risk management program to efficiently manage and minimize
     commodity price and interest rate risk.  The company's policy
     prohibits the use of derivative instruments for speculating to
     take advantage of market trends and conditions and the company
     has procedures in place to monitor compliance with its
     policies.  The company is exposed to credit-related losses in
     relation to hedged derivative instruments in the event of
     nonperformance by counterparties.  The company has policies and
     procedures, which management believes minimize credit-risk
     exposure.  These policies and procedures include an evaluation
     of potential counterparties' credit ratings, credit exposure
     limitations, settlement of natural gas and oil price swap
     agreements monthly and settlement of interest rate swap
     agreements within 90 days.  Accordingly, the company does not
     anticipate any material effect to its financial position or
     results of operations as a result of nonperformance by
     counterparties.

         Upon the adoption of SFAS No. 133, the company recorded the
     fair market value of the natural gas and oil price swap
     agreements on the company's Consolidated Balance Sheets.  On an
     ongoing basis, the company adjusts its balance sheet to reflect
     the current fair market value of the natural gas and oil price
     swap agreements and the interest rate swap agreement.  The
     related gains or losses on these agreements are recorded in
     common stockholders' equity as a component of other
     comprehensive income (loss).  At the date the underlying
     transaction occurs, the amounts accumulated in other
     comprehensive income (loss) are reported in the Consolidated
     Statements of Income.  To the extent that the hedges are not
     effective, the ineffective portion of the changes in fair
     market value is recorded directly in earnings.

         For the three months and nine months ended September 30,
     2001, the company recognized the ineffectiveness of all cash-
     flow hedges, which is included in operating revenues and
     interest expense on the Consolidated Statements of Income for
     the natural gas and oil price swap agreements and the interest
     rate swap agreement, respectively.  For the three months and
     nine months ended September 30, 2001, the amount of
     ineffectiveness recognized was immaterial.  For the three
     months and nine months ended September 30, 2001, the company
     did not exclude any components of the derivative instruments'
     loss from the assessment of hedge effectiveness and there were
     no reclassifications into earnings as a result of the
     discontinuance of hedges.

         Gains and losses on derivative instruments that are
     reclassified from accumulated other comprehensive income (loss)
     to current-period earnings are included in the line item in
     which the hedged item is recorded.  As of September 30, 2001,
     the maximum length of time over which the company is hedging
     its exposure to the variability in future cash flows for
     forecasted transactions is 15 months and the company estimates
     that net gains of approximately $3.0 million will be
     reclassified from accumulated other comprehensive income into
     earnings, subject to changes in natural gas and oil market
     prices and interest rates, within the twelve months between
     October 1, 2001 and September 30, 2002 as the hedged
     transactions affect earnings.

         In the event a derivative instrument does not qualify for
     hedge accounting because it is no longer highly effective in
     offsetting changes in cash flows of a hedged item; or if the
     derivative instrument expires or is sold, terminated, or
     exercised; or if management determines that designation of the
     derivative instrument as a hedge instrument is no longer
     appropriate, hedge accounting will be discontinued, and the
     derivative instrument would continue to be carried at fair
     value with changes in its fair value recognized in earnings.
     In these circumstances, the net gain or loss at the time of
     discontinuance of hedge accounting would remain in other
     comprehensive income (loss) until the period or periods during
     which the hedged forecasted transaction affects earnings, at
     which time the net gain or loss would be reclassified into
     earnings.  In the event a cash flow hedge is discontinued
     because it is unlikely that a forecasted transaction will
     occur, the derivative instrument would continue to be carried
     on the balance sheet at its fair value, and gains and losses
     that were accumulated in other comprehensive income (loss)
     would be recognized immediately in earnings.  The company's
     policy requires approval to terminate a hedge agreement prior
     to its original maturity.

     Energy marketing

         The company had entered into other derivative instruments
     that were not designated as hedges in its energy marketing
     operations.  In the third quarter of 2001, the company sold the
     vast majority of its energy marketing operations.  The
     derivative instruments entered into by these operations prior
     to the sale in the third quarter of 2001 were natural gas
     forward purchase and sale commitments.  These commitments
     involved the purchase and sale of natural gas and related
     delivery of such commodity.  These operations sought to match
     natural gas purchases and sales on specific derivative
     instruments so that a margin was obtained on the transportation
     of such commodity as distinguished from earning a margin on
     changes in market prices.  The net change in fair value
     representing unrealized gains and losses resulting from changes
     in market prices on these derivative instruments was reflected
     as operating revenues or purchased natural gas sold on the
     company's Consolidated Statements of Income.  Net unrealized
     gains and losses on these derivative instruments were not
     material for the three months and nine months ended September
     30, 2001 and 2000.

8.   Comprehensive income

         Upon the adoption of SFAS No. 133 on January 1, 2001, the
     company recorded a cumulative-effect adjustment in accumulated
     other comprehensive loss to recognize all derivative
     instruments designated as hedges at fair value.  As of
     September 30, 2001, the company has recorded unrealized gains
     and losses on natural gas and oil price swap and interest rate
     swap agreements in accordance with SFAS No. 133.  These amounts
     are reflected in the following table.  For additional
     information on the adoption of SFAS No. 133, see Notes 6 and 7
     of the Notes to the Consolidated Financial Statements.

         The company's comprehensive income, and the components of
     other comprehensive income, net of taxes, were as follows:

                                                  Three Months Ended
                                                     September 30,
                                                    2001      2000
                                                   (In thousands)

  Net income                                      $ 50,746  $ 39,992
   Other comprehensive income -
     Net unrealized gain on derivative
     instruments qualifying as hedges:
       Net unrealized gain on derivative
        instruments arising during the
        period, net of tax of $1,191                 1,824       ---
       Reclassification adjustment for
        gains on derivative instruments
        included in net income, net of
        tax of $992                                 (1,519)      ---
     Net unrealized gain on derivative
       instruments qualifying as hedges                305       ---
  Comprehensive income                            $ 51,051  $ 39,992


                                                   Nine Months Ended
                                                     September 30,
                                                    2001      2000
                                                   (In thousands)

  Net income                                      $126,850  $ 74,483
   Other comprehensive income -
     Net unrealized gain on derivative
     instruments qualifying as hedges:
       Unrealized loss on derivative
        instruments at January 1, 2001,
        due to cumulative effect of a
        change in accounting principle,
        net of tax of $3,970                        (6,080)      ---
       Net unrealized gain on derivative
        instruments arising during the
        period, net of tax of $2,782                 4,262       ---
       Reclassification adjustment for
        losses on derivative instruments
        included in net income, net of
        tax of $3,355                                5,138       ---
     Net unrealized gain on derivative
       instruments qualifying as hedges              3,320       ---
  Comprehensive income                            $130,170  $ 74,483

 9.  Business segment data

         The company's reportable business 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 company's operations are conducted through six
     segments.  Substantially all of the company's operations are
     located within the United States.  The electric segment
     generates, transmits and distributes electricity and the
     natural gas distribution segment distributes natural gas.
     These operations also supply related value-added products and
     services in the Northern Great Plains.  The utility services
     segment consists of a diversified infrastructure construction
     company specializing in electric, natural gas and
     telecommunication utility construction as well as interior
     industrial electrical, exterior lighting and traffic
     signalization.  Utility services has engineering, design and
     build capability and provides related specialty equipment sales
     and rental services throughout most of the United States.  The
     pipeline and energy services segment provides natural gas
     transportation, underground storage and gathering services
     through regulated and nonregulated pipeline systems in the
     Rocky Mountain, Midwest, Southern and Central regions of the
     United States, provides energy-related marketing and management
     services and invests in new growth and synergistic
     opportunities.  The natural gas and oil production segment is
     engaged in natural gas and oil acquisition, exploration and
     production activities primarily in the Rocky Mountain region of
     the United States and in the Gulf of Mexico.  The construction
     materials and mining segment mines and markets aggregates and
     related value-added construction materials products and
     services in Alaska, California, Hawaii, Minnesota, Montana,
     Oregon, Washington and Wyoming.

         On May 11, 2001, the company announced that the sale of its
     coal operations to Westmoreland Coal Company for $28.8 million
     in cash, excluding final settlement cost adjustments, had been
     finalized.  The sale of the coal operations was effective April
     30, 2001.  Included in the sale were active coal mines in North
     Dakota and Montana, coal sales agreements, reserves and mining
     equipment and certain development rights at the former Gascoyne
     Mine site in North Dakota.  The company retains ownership of
     coal reserves and leases at its former Gascoyne Mine site.  The
     company recorded a gain of $11.0 million ($6.6 million after
     tax) included in other income - net on the company's
     Consolidated Statements of Income from the sale in the second
     quarter of 2001.

         Segment information follows the same accounting policies as
     described in Note 1 of the company's 2000 Annual Report.
     Segment information included in the accompanying Consolidated
     Statements of Income is as follows:

                                               Inter-
                                External      segment       Earnings
                               Operating     Operating     on Common
                                Revenues      Revenues       Stock
                                           (In thousands)
     Three Months
     Ended September 30, 2001

     Electric                  $  48,154     $      ---    $   8,265
     Natural gas distribution     18,710            ---       (2,747)
     Utility services             92,208            ---        3,405
     Pipeline and energy
       services                   59,430          5,391        3,895
     Natural gas and oil
       production                 31,579         10,891       10,519
     Construction materials
       and mining                301,599            ---       27,219
     Intersegment eliminations       ---        (16,282)         ---
     Total                     $ 551,680     $      ---    $  50,556

     Three Months
     Ended September 30, 2000

     Electric                  $  42,078     $      ---    $   5,920
     Natural gas distribution     24,912            ---       (2,180)
     Utility services             60,056            ---        3,860
     Pipeline and energy
       services                  136,679          7,508        2,997
     Natural gas and oil
       production                 25,012         10,241       10,001
     Construction materials
       and mining                238,647          3,450*      19,203
     Intersegment eliminations       ---        (17,749)         ---
     Total                     $ 527,384     $    3,450*   $  39,801

     *  In accordance with the provisions of Statement of Financial
        Accounting Standards No. 71, "Accounting for the Effects of
        Regulation" (SFAS No. 71), intercompany coal sales are not
        eliminated.


                                               Inter-
                                External      segment       Earnings
                               Operating     Operating     on Common
                                Revenues      Revenues       Stock
                                           (In thousands)
     Nine Months
     Ended September 30, 2001

     Electric                  $  129,143    $      ---    $  15,224
     Natural gas distribution     200,809           ---       (1,620)
     Utility services             236,710             4        9,321
     Pipeline and energy
       services                   454,819        34,197        9,656
     Natural gas and oil
       production                 121,310        48,192       56,440
     Construction materials
       and mining                 591,538         5,016*      37,258
     Intersegment eliminations        ---       (82,393)         ---
     Total                     $1,734,329    $    5,016*   $ 126,279

     Nine Months
     Ended September 30, 2000

     Electric                  $  118,799    $      ---    $  12,179
     Natural gas distribution     116,370           ---         (270)
     Utility services             107,243           ---        5,387
     Pipeline and energy
       services                   381,989        37,622        6,645
     Natural gas and oil
       production                  69,861        21,985       23,499
     Construction materials
       and mining                 461,680         9,860*      26,468
     Intersegment eliminations        ---       (59,607)         ---
     Total                     $1,255,942    $    9,860*   $  73,908

     *  In accordance with the provisions of SFAS No. 71,
        intercompany coal sales are not eliminated.

         During the first nine months of 2001, the company acquired a
     number of businesses, none of which was individually material,
     including construction materials and mining businesses in
     Hawaii, Minnesota and Oregon, utility services businesses based
     in Missouri and Oregon and an energy services company
     specializing in cable and pipeline locating and tracking
     systems.  The total purchase consideration, consisting of the
     company's common stock and cash, for these businesses was
     $165.4 million.

10.  Regulatory matters and revenues subject to refund

         In December 1999, Williston Basin Interstate Pipeline
     Company (Williston Basin), an indirect wholly owned subsidiary
     of the company, filed a general natural gas rate change
     application with the Federal Energy Regulatory Commission
     (FERC).  Williston Basin began collecting such rates effective
     June 1, 2000, subject to refund.  On May 9, 2001, the
     Administrative Law Judge issued an Initial Decision on
     Williston Basin's natural gas rate change application, which
     matter is currently pending before and subject to revision by
     the FERC.

         Reserves have been provided for a portion of the revenues
     that have been collected subject to refund with respect to the
     pending regulatory proceeding.  Williston Basin believes that
     such reserves are adequate based on its assessment of the
     ultimate outcome of the proceeding.

11.  Litigation

         In March 1997, 11 natural gas producers filed suit in North
     Dakota Southwest Judicial District Court (North Dakota District
     Court) against Williston Basin and the company.  The natural
     gas producers had processing agreements with Koch Hydrocarbon
     Company (Koch).  Williston Basin and the company had natural
     gas purchase contracts with Koch.  The natural gas producers
     alleged they were entitled to damages for the breach of
     Williston Basin's and the company's contracts with Koch
     although no specific damages were stated.  A similar suit was
     filed by Apache Corporation (Apache) and Snyder Oil Corporation
     (Snyder) in North Dakota Northwest Judicial District Court in
     December 1993.  The North Dakota Supreme Court in December 1999
     affirmed the North Dakota Northwest Judicial District Court
     decision dismissing Apache's and Snyder's claims against
     Williston Basin and the company.  Based in part upon the
     decision of the North Dakota Supreme Court affirming the
     dismissal of the claims brought by Apache and Snyder, Williston
     Basin and the company filed motions for summary judgment to
     dismiss the claims of the 11 natural gas producers.  The
     motions for summary judgment were granted by the North Dakota
     District Court in July 2000.  On March 5, 2001, the North
     Dakota District Court entered a final judgment on the July 2000
     order granting the motions for summary judgment.  On May 4,
     2001, the 11 natural gas producers appealed the North Dakota
     District Court's decision by filing a Notice of Appeal with the
     North Dakota Supreme Court.

         In July 1996, Jack J. Grynberg (Grynberg) filed suit in
     United States District Court for the District of Columbia (U.S.
     District Court) against Williston Basin and over 70 other
     natural gas pipeline companies.  Grynberg, acting on behalf of
     the United States under the Federal False Claims Act, alleged
     improper measurement of the heating content or volume of
     natural gas purchased by the defendants resulting in the
     underpayment of royalties to the United States.  In March 1997,
     the U.S. District Court dismissed the suit without prejudice
     and the dismissal was affirmed by the United States Court of
     Appeals for the D.C. Circuit in October 1998.  In June 1997,
     Grynberg filed a similar Federal False Claims Act suit against
     Williston Basin and Montana-Dakota and filed over 70 other
     separate similar suits against natural gas transmission
     companies and producers, gatherers, and processors of natural
     gas.  In April 1999, the United States Department of Justice
     decided not to intervene in these cases.  In response to a
     motion filed by Grynberg, the Judicial Panel on Multidistrict
     Litigation consolidated all of these cases in the Federal
     District Court of Wyoming (Federal District Court).  Oral
     argument on motions to dismiss was held before the Federal
     District Court in March 2000.  On May 18, 2001, the Federal
     District Court denied Williston Basin's and Montana-Dakota's
     motion to dismiss.  The matter is currently pending.

         The Quinque Operating Company (Quinque), on behalf of
     itself and subclasses of gas producers, royalty owners and
     state taxing authorities, instituted a legal proceeding in
     State District Court for Stevens County, Kansas,(State District
     Court) against over 200 natural gas transmission companies and
     producers, gatherers, and processors of natural gas, including
     Williston Basin and Montana-Dakota.  The complaint, which was
     served on Williston Basin and Montana-Dakota in September 1999,
     contains allegations of improper measurement of the heating
     content and volume of all natural gas measured by the
     defendants other than natural gas produced from federal lands.
     In response to a motion filed by the defendants in this suit,
     the Judicial Panel on Multidistrict Litigation transferred the
     suit to the Federal District Court for inclusion in the
     pretrial proceedings of the Grynberg suit.  Upon motion of
     plaintiffs, the case has been remanded to State District Court.
     On September 12, 2001, the defendants in this suit filed a
     motion to dismiss with the State District Court.

         Williston Basin and Montana-Dakota believe the claims of
     Grynberg and Quinque are without merit and intend to vigorously
     contest these suits.

12.  Environmental matters

         In December 2000, Morse Bros., Inc. (MBI), an indirect
     wholly owned subsidiary of the company, was named by the United
     States Environmental Protection Agency (EPA) as a Potentially
     Responsible Party in connection with the cleanup of a
     commercial property site, now owned by MBI, and part of the
     Portland, Oregon, Harbor Superfund Site.  Sixty-eight other
     parties were also named in this administrative action.  The EPA
     wants responsible parties to share in the cleanup of sediment
     contamination in the Willamette River.  Based upon a review of
     the Portland Harbor sediment contamination evaluation by the
     Oregon State Department of Environmental Quality and other
     information available, MBI does not believe it is a Responsible
     Party. In addition, MBI intends to seek indemnity for any and
     all liabilities incurred in relation to the above matters from
     Georgia-Pacific West, Inc., the seller of the commercial
     property site to MBI, pursuant to the terms of their sale
     agreement.

ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION
        AND RESULTS OF OPERATIONS

     For purposes of segment financial reporting and discussion of
results of operations, electric and natural gas distribution include
the electric and natural gas distribution operations of Montana-
Dakota and the natural gas distribution operations of Great Plains
Natural Gas Co.  Utility services includes all the operations of
Utility Services, Inc.  Pipeline and energy services includes WBI
Holdings' natural gas transportation, underground storage, gathering
services, energy marketing and management services and Centennial
Capital.  Natural gas and oil production includes the natural gas
and oil acquisition, exploration and production operations of WBI
Holdings, while construction materials and mining includes the
results of Knife River's operations.

     Reference should be made to Notes to Consolidated Financial
Statements for information pertinent to various commitments and
contingencies.

Overview

     The following table (dollars in millions, where applicable)
summarizes the contribution to consolidated earnings by each of the
company's business segments.

                                   Three Months    Nine Months
                                      Ended           Ended
                                   September 30,  September 30,
                                    2001    2000    2001   2000
Electric                           $ 8.3  $  5.9  $ 15.2  $12.2
Natural gas distribution            (2.7)   (2.2)   (1.6)   (.3)
Utility services                     3.4     3.9     9.3    5.4
Pipeline and energy services         3.9     3.0     9.7    6.6
Natural gas and oil production      10.5    10.0    56.4   23.5
Construction materials and mining   27.2    19.2    37.3   26.5
Earnings on common stock           $50.6  $ 39.8  $126.3  $73.9

Earnings per common
  share - basic                    $ .75  $  .63  $ 1.89  $1.23

Earnings per common
  share - diluted                  $ .74  $  .63  $ 1.87  $1.23

Return on average common equity
  for the 12 months ended                          17.0%  13.7%
________________________________

Three Months Ended September 30, 2001 and 2000

     Consolidated earnings for the quarter ended September 30, 2001,
increased $10.8 million from the comparable period a year ago due to
higher earnings at the construction materials and mining, electric,
pipeline and energy services, and natural gas and oil production
businesses, partially offset by lower earnings at the other business
segments.

Nine Months Ended September 30, 2001 and 2000

     Consolidated earnings for the nine months ended September 30,
2001, increased $52.4 million from the comparable period a year ago
due to higher earnings at the natural gas and oil production,
construction materials and mining, utility services, pipeline and
energy services and electric businesses, partially offset by lower
earnings at the natural gas distribution business segment.

                ________________________________


Financial and operating data

     The following tables (dollars in millions, where applicable) are
key financial and operating statistics for each of the company's
business segments.

Electric
                                  Three Months      Nine Months
                                     Ended              Ended
                                  September 30,     September 30,
                                  2001     2000     2001    2000
Operating revenues:
  Retail sales                 $  37.9  $  34.4  $ 103.5 $  98.9
  Sales for resale and other      10.3      7.7     25.6    19.9
                                  48.2     42.1    129.1   118.8
Operating expenses:
  Fuel and purchased power        15.0     13.4     42.7    39.6
  Operation and maintenance       10.5     10.0     34.0    31.9
  Depreciation, depletion and
    amortization                   4.9      4.8     14.5    14.3
  Taxes, other than income         1.8      1.7      5.6     5.6
                                  32.2     29.9     96.8    91.4

Operating income               $  16.0  $  12.2  $  32.3 $  27.4

Retail sales (million kWh)       597.3    561.7  1,640.4 1,592.1
Sales for resale (million kWh)   201.0    222.4    649.0   680.6
Average cost of fuel and
  purchased power per kWh      $  .018  $  .016  $  .018 $  .016


Natural Gas Distribution
                                  Three Months      Nine Months
                                     Ended              Ended
                                  September 30,     September 30,
                                  2001     2000     2001    2000
Operating revenues:
  Sales                        $  17.8  $  24.1  $ 197.9 $ 113.7
  Transportation and other          .9       .8      2.9     2.7
                                  18.7     24.9    200.8   116.4
Operating expenses:
  Purchased natural gas sold      10.7     16.8    162.6    82.2
  Operation and maintenance        8.3      7.7     27.8    23.6
  Depreciation, depletion and
    amortization                   2.3      2.3      7.0     6.1
  Taxes, other than income         1.2      1.1      3.8     3.5
                                  22.5     27.9    201.2   115.4

Operating income (loss)        $  (3.8) $  (3.0) $  (0.4)$   1.0

Volumes (MMdk):
  Sales                            3.0      3.2     24.6    21.2
  Transportation                   2.9      3.1      9.8     9.0
Total throughput                   5.9      6.3     34.4    30.2

Degree days (% of normal)          88%     118%      98%     92%
Average cost of natural gas,
  including transportation
  thereon, per dk              $  3.53  $  5.28  $  6.61 $  3.88

Utility Services

                                  Three Months      Nine Months
                                     Ended              Ended
                                  September 30,     September 30,
                                  2001     2000     2001    2000

Operating revenues             $  92.2  $  60.1  $ 236.7 $ 107.2

Operating expenses:
 Operation and maintenance        80.7     49.5    206.4    89.9
 Depreciation, depletion
   and amortization                2.1      1.4      5.8     3.3
 Taxes, other than income          2.6      1.9      6.2     3.5
                                  85.4     52.8    218.4    96.7

Operating income               $   6.8  $   7.3  $  18.3 $  10.5



Pipeline and Energy Services

                                  Three Months      Nine Months
                                     Ended              Ended
                                  September 30,     September 30,
                                  2001     2000     2001    2000
Operating revenues:
 Pipeline                      $  22.7  $  19.2  $  64.9 $  48.6
 Energy services                  42.1    125.0    424.1   371.0
                                  64.8    144.2    489.0   419.6

Operating expenses:
 Purchased natural gas sold       40.2    123.3    416.4   363.6
 Operation and maintenance        10.4      9.0     33.9    26.6
 Depreciation, depletion
   and amortization                3.9      3.2     10.7     7.9
 Taxes, other than income          1.6      1.4      4.6     3.7
                                  56.1    136.9    465.6   401.8

Operating income               $   8.7  $   7.3  $  23.4 $  17.8

Transportation volumes (MMdk):
 Montana-Dakota                    8.9      6.7     26.4    22.4
 Other                            19.2     15.5     46.8    42.3
                                  28.1     22.2     73.2    64.7

Gathering volumes (MMdk)          15.2     13.2     44.0    28.0

Natural Gas and Oil Production

                                  Three Months      Nine Months
                                     Ended              Ended
                                  September 30,     September 30,
                                  2001     2000     2001    2000
Operating revenues:
 Natural gas                   $  29.2  $  21.3  $ 124.8 $  51.0
 Oil                              12.4     11.6     38.9    32.5
 Other                              .9      2.3      5.8     8.4
                                  42.5     35.2    169.5    91.9
Operating expenses:
 Purchased natural gas sold         .7       .6      2.4     3.0
 Operation and maintenance        11.9      8.5     34.7    23.4
 Depreciation, depletion
   and amortization               10.3      6.5     30.4    17.7
 Taxes, other than income          2.3      2.1      8.7     6.1
                                  25.2     17.7     76.2    50.2

Operating income               $  17.3  $  17.5  $  93.3 $  41.7

Production:
 Natural gas (MMcf)              9,921    7,361   29,641  20,198
 Oil (000's of barrels)            510      486    1,492   1,428

Average realized prices:
 Natural gas (per Mcf)         $  2.94  $  2.90  $  4.21 $  2.52
 Oil (per barrel)              $ 24.33  $ 23.86  $ 26.04 $ 22.79


Construction Materials and Mining

                                  Three Months      Nine Months
                                     Ended              Ended
                                  September 30,     September 30,
                                  2001     2000     2001    2000
Operating revenues:
  Construction materials       $ 301.6  $ 233.2  $ 584.3 $ 447.7
  Coal                             ---      8.9     12.3    23.8
                                 301.6    242.1    596.6   471.5
Operating expenses:
  Operation and maintenance      236.5    193.0    489.7   387.8
  Depreciation, depletion
    and amortization              12.7     10.5     34.3    25.9
  Taxes, other than income         4.2      3.9     12.4     9.7
                                 253.4    207.4    536.4   423.4

Operating income               $  48.2  $  34.7  $  60.2 $  48.1

Sales (000's):
  Aggregates (tons)             11,023    6,700   19,951  13,510
  Asphalt (tons)                 3,310    1,627    4,732   2,583
  Ready-mixed concrete
    (cubic yards)                  804      516    1,916   1,223
  Coal (tons)                      ---      818    1,171   2,190

     Amounts presented in the preceding tables for operating
revenues, purchased natural gas sold and operation and maintenance
expenses will not agree with the Consolidated Statements of Income
due to the elimination of intercompany transactions between the
pipeline and energy services segment and the natural gas
distribution and natural gas and oil production segments.  The
amounts relating to the elimination of intercompany transactions for
operating revenues, purchased natural gas sold and operation and
maintenance expenses are as follows:  $16.3 million, $14.7 million
and $1.6 million for the three months ended September 30, 2001;
$17.8 million, $17.6 million and $.2 million for the three months
ended September 30, 2000; $82.4 million, $79.0 million and $3.4
million for the nine months ended September 30, 2001; and $59.6
million, $58.9 million and $.7 million for the nine months ended
September 30, 2000, respectively.

Three Months Ended September 30, 2001 and 2000

Electric

     Electric earnings increased due to higher average realized sales
for resale prices, and increased retail sales volumes due largely to
an increased summer cooling load resulting from warmer weather
compared to the same period a year ago.  Higher operation and
maintenance expense, primarily increased payroll costs, partially
offset the earnings increase.

Natural Gas Distribution

     Earnings at the natural gas distribution business decreased due
to higher operation and maintenance expense, primarily increased
payroll costs and higher bad debt expense, and reduced operating
revenue caused by lower weather-related sales, the result of 24
percent warmer weather than the same period last year.  The pass-
through of lower natural gas prices added to the decline in sales
revenue and purchased natural gas sold.

Utility Services

     Utility services earnings declined largely due to lower
construction margins due, in part, to a slow down in the economy.
Higher selling, general and administrative expenses also added to
the earnings decline.  Partially offsetting the earnings decrease
were higher equipment sales at existing operations and earnings from
businesses acquired since the comparable period last year.

Pipeline and Energy Services

     Earnings at the pipeline and energy services business increased
due to higher transportation volumes moved to storage, higher
average rates and increased gathering volumes at the pipeline.
Higher operation and maintenance expense, primarily increased
material costs, higher contract services, and increased payroll
costs, the sale of the company's Kentucky energy services operations
and higher depreciation, depletion and amortization expense
partially offset the earnings increase.  The decrease in energy
services revenue and the related decrease in purchased natural gas
sold resulted primarily from decreased energy marketing volumes,
largely at certain energy services operations which were sold, as
previously discussed.

Natural Gas and Oil Production

     Natural gas and oil production earnings increased largely due to
an increase in natural gas and oil production of 35 percent and 5
percent since last year, respectively, combined with slightly higher
realized natural gas and oil prices.  Higher realized prices were
the result of gains on hedging activities.  The higher production
was the result of the ongoing development of existing properties.
Also adding to the earnings increase was lower interest expense, a
result of lower debt balances combined with lower average interest
rates.  Partially offsetting the earnings improvement were increased
depreciation, depletion and amortization expense due to higher
production volumes and higher rates, increased operation and
maintenance expense, mainly higher lease operating expenses and
higher general and administrative costs, and lower sales volumes of
inventoried natural gas.  Hedging activities for natural gas for the
third quarter of 2001 and 2000 resulted in realized prices that were
111 and 86 percent, respectively, of what otherwise would have been
received.  In addition, hedging activities for oil for the third
quarter of 2001 and 2000 resulted in realized prices that were 102
and 81 percent, respectively, of what otherwise would have been
received.

Construction Materials and Mining

     Earnings for the construction materials and mining business
increased largely as a result of earnings from businesses acquired
since the comparable period last year and from increases at existing
aggregate, asphalt and cement operations.  Partially offsetting the
earnings increase were lower construction workloads and margins,
largely increased competition and less available work, due, in part,
to a slow down in the economy, and the timing of projects, at
certain West Coast operations.  The absence of coal volumes due to
the sale of the coal operations, as previously discussed in Note 9
of Notes to the Consolidated Financial Statements, also partially
offset the earnings increase.

Nine Months Ended September 30, 2001 and 2000

Electric

     Electric earnings increased due to higher average realized sales
for resale prices, increased retail sales volumes, as previously
discussed, and insurance recovery proceeds related to a 2000 outage
at an electric generating station.  Increased fuel and purchased
power costs, largely due to an extended maintenance outage at an
electric power supplier's generating station, partially offset the
earnings increase.  Also partially offsetting the earnings increase
were higher operation and maintenance expense, primarily higher
payroll costs.

Natural Gas Distribution

     Earnings at the natural gas distribution business decreased as
a result of higher operation and maintenance expenses, primarily
increased bad debt expense and higher payroll costs. Decreased
return on natural gas storage, demand and prepaid commodity
balances, decreased service and repair margins, and lower average
realized rates, also added to the earnings decline. Slightly
offsetting the decline were increased sales, partially due to
weather that was 7 percent colder than the same period last year,
and earnings from a natural gas utility business acquired in July
2000.  The pass-through of higher natural gas prices added to the
increase in sales revenue and purchased natural gas sold.

Utility Services

     Utility services earnings increased as a result of earnings from
businesses acquired since the comparable period last year, as well
as increased workloads and equipment sales at existing operations.
The earnings improvement was partially offset by higher selling,
general and administrative costs.

Pipeline and Energy Services

     Earnings at the pipeline and energy services business increased
due to higher transportation volumes combined with higher average
rates, increased gathering volumes and increased earnings from an
acquisition in June 2000 at the pipeline.  Also contributing to the
earnings increase were higher natural gas sales margins, increased
pipeline and cable magnetization and locating services revenues at
energy services.  Partially offsetting the earnings increase were
higher operation and maintenance expense, the write-off of an
investment in a software development company of $699,000 (after
tax), and increased depreciation, depletion and amortization
expense.  The higher operations and maintenance expense was due
primarily to increased compressor-related expenses, higher payroll
expenses and increased contract services.  The increase in energy
services revenue and the related increase in purchased natural gas
sold resulted from higher natural gas prices, partially offset by
decreased energy marketing volumes, as previously discussed.

Natural Gas and Oil Production

     Natural gas and oil production earnings increased largely due to
increased realized natural gas and oil prices which were 67 percent
and 14 percent higher than last year, respectively, combined with
higher natural gas and oil production of 47 percent and 4 percent
since last year, respectively.  The higher production was largely
the result of a natural gas property acquisition in April 2000 and
the ongoing development of that property as well as existing
properties.  Also adding to the earnings increase was lower interest
expense, a result of lower debt balances combined with lower average
rates.  Partially offsetting the earnings improvement were increased
depreciation, depletion and amortization expense, due to higher
production volumes and higher rates, increased operation and
maintenance expense, mainly higher lease operating expenses and
higher general and administrative costs, and lower sales volumes of
inventoried natural gas.  Hedging activities for natural gas for the
nine months ended September 30, 2001 and 2000 resulted in realized
prices that were 99 and 89 percent, respectively, of what otherwise
would have been received.  In addition, hedging activities for oil
for the nine months ended September 30, 2001 and 2000 resulted in
realized prices that were 102 and 83 percent, respectively, of what
otherwise would have been received.

Construction Materials and Mining

     Earnings for the construction materials and mining business
increased largely due to a gain from the sale of the coal
operations of $11.0 million ($6.6 million after tax), included in
other income - net, as previously discussed, partially offset by
lower coal sales volumes due primarily to four months of operations
in 2001 compared to nine months in 2000.  At the construction
materials business, earnings from businesses acquired since the
comparable period last year and increases largely from existing
asphalt and aggregate operations, also added to the earnings
improvement.  Partially offsetting the earnings increase were lower
construction workloads and margins, as previously described, the
absence of last year's gain of $1.2 million after tax on the sale of
nonstrategic property, increased interest expense, the result of
higher acquisition-related borrowings, higher depreciation,
depletion and amortization due to increased plant balances, and
higher selling, general and administrative costs.

Safe Harbor for Forward-looking Statements

     The company is including the following cautionary statement in
this Form 10-Q to make applicable and to take advantage of the safe
harbor provisions of the Private Securities Litigation Reform Act of
1995 for any forward-looking statements made by, or on behalf of,
the company.  Forward-looking statements include statements
concerning plans, objectives, goals, strategies, future events or
performance, and underlying assumptions (many of which are based, in
turn, upon further assumptions) and other statements which 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 Prospective
Information.  All such subsequent forward-looking statements,
whether written or oral and whether made by or on behalf of the
company, are also expressly qualified by these cautionary
statements.

     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
management's examination of historical operating trends, data
contained in the company's records and other data available from
third parties, but there can be no assurance that the company's
expectations, beliefs or projections will be achieved or
accomplished.  Furthermore, any forward-looking statement speaks
only as of the date on which such 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 such statement is made or to reflect the occurrence of
unanticipated events.  New factors emerge from time to time, and it
is not possible for management to predict all of such factors, nor
can it assess the effect of each such factor on the company's
business or the extent to which any such factor, or combination of
factors, may cause actual results to differ materially from those
contained in any forward-looking statement.

     In addition to other factors and matters discussed elsewhere
herein, some important factors that could cause actual results or
outcomes for the company to differ materially from those discussed
in forward-looking statements include prevailing governmental
policies and regulatory actions with respect to allowed rates of
return, financings, or industry and rate structures, acquisition and
disposal of assets or facilities, operation and construction of
plant facilities, recovery of purchased power and purchased gas
costs, present or prospective generation and availability of
economic supplies of natural gas. Other important factors include
the level of governmental expenditures on public projects and the
timing of such projects, changes in anticipated tourism levels, the
effects of competition (including but not limited to electric retail
wheeling and transmission costs and prices of alternate fuels and
system deliverability costs), natural gas and oil commodity prices,
drilling successes in natural gas and oil operations, the ability to
contract for or to secure necessary drilling rig contracts and to
retain employees to drill for and develop reserves, ability to
acquire natural gas and oil properties, and the availability of
economic expansion or development opportunities.

     The business and profitability of the company are also
influenced by economic and geographic factors, including political
and economic risks, economic disruptions caused by terrorist
activities, changes in and compliance with environmental and safety
laws and policies, weather conditions, population growth rates and
demographic patterns, market demand for energy from plants or
facilities, changes in tax rates or policies, unanticipated project
delays or changes in project costs, unanticipated changes in
operating expenses or capital expenditures, labor negotiations or
disputes, changes in credit ratings or capital market conditions,
inflation rates, inability of the various counterparties to meet
their contractual obligations, changes in accounting principles
and/or the application of such principles to the company, changes in
technology and legal proceedings, and the ability to effectively
integrate the operations of acquired companies.

Prospective Information

     The following information includes highlights of the key growth
strategies, projections and certain assumptions for the company over
the next few years and other matters for the company for each of its
six major business segments.  Many of these highlighted points are
forward-looking statements.  There is no assurance that the
company's projections, including estimates for growth and increases
in revenues and earnings, will in fact be achieved.  Reference
should be made to assumptions contained in this section as well as
the various important factors listed under the heading Safe Harbor
for Forward-looking Statements.  Changes in such assumptions and
factors could cause actual future results to differ materially from
the company's targeted growth, revenue and earnings projections.

MDU Resources Group, Inc.

- Over the past five years, the company has experienced a
  compound annual earnings per share growth rate of approximately 14
  percent.  Currently, the company anticipates that its earnings per
  share growth rate for this single year will be approximately 17
  percent to 28 percent, excluding the one-time gain from the sale of
  the company's coal operations and the write-off of an investment
  taken in the second quarter.

- Earnings per share, diluted, for 2001 are projected in the
  $2.10 to $2.30 range, excluding the gain on the sale of the
  company's coal operations and the write-off of an investment.

- Earnings per share, diluted, for 2002 are projected in the
  $1.90 to $2.10 range.

- The company's long-term growth goals on compound annual
  earnings per share from operations are in the range of 10 percent to
  12 percent.  However, the general weakening of the economy combined
  with the recent terrorist events have added uncertainty in the
  ability of the company to achieve this goal in the early years of
  the planning cycle.

- The company expects to issue and sell equity from time to time
  to keep its debt at the nonregulated businesses at no more than 40
  percent of total capitalization.

- The company estimates that the benefit resulting solely from
  the discontinuance of goodwill amortization would be five to six
  cents per common share in 2002.

Electric

- Montana-Dakota has obtained and holds valid and existing
  franchises authorizing it to conduct its electric and natural gas
  operations in all of the municipalities it serves where such
  franchises are required.  As franchises expire, Montana-Dakota may
  face increasing competition in its service areas, particularly its
  service to smaller towns, from rural electric cooperatives.
  Previously, a smaller town in western North Dakota was considering
  municipalization of Montana-Dakota's electric facilities.  In August
  2001, the voters of this town in a special election turned down the
  opportunity to pursue municipalization of the electric system.
  Montana-Dakota is currently negotiating the terms of a new franchise
  with this town.  Montana-Dakota intends to protect its service area
  and seek renewal of all expiring franchises and will continue to
  take steps to effectively operate in an increasingly competitive
  environment.

- Due to growing electric demand, a gas-fired 40-megawatt
  electric plant may be added in the three to five year planning
  horizon.

- Currently, the company is working with the state of North
  Dakota to determine the feasibility of constructing a 500-megawatt
  lignite-fired power plant in western North Dakota.

Natural Gas Distribution

- Annual natural gas throughput for 2001 is expected to be
  approximately 54 million decatherms, with about 38 million
  decatherms from sales and 16 million decatherms from transportation.

- The number of natural gas retail customers at existing
  operations is expected to grow by approximately 1.5 percent on an
  annual basis over the next three to five years.

Utility Services

- Revenues for this segment are expected to exceed $300 million
  in 2001 and be approximately $500 million in 2002.

- This segment's goal is to achieve compound annual revenue and
  earnings growth rates of approximately 20 percent to 25 percent over
  the next five years.  However, the general weakening of the economy
  combined with the recent terrorist events have added uncertainty in
  the ability of the company to achieve this goal in the early years
  of the planning cycle.

Pipeline and Energy Services

- Two pipeline projects completed in 2000, are providing the
  pipeline company the ability to move approximately 40 percent more
  coalbed natural gas through its system than has historically been
  transported, as well as enabling additional deliveries to
  interconnecting pipeline systems, including the company's own
  transmission system.

- In 2001, natural gas throughput, including transportation and
  gathering, for this segment is expected to increase by approximately
  10 percent to 20 percent.

- A 250-mile pipeline to transport additional gas to market and
  enhance the use of the company's storage facilities is in the
  planning stages and regulatory approval is expected to be sought
  later this year.

Natural Gas and Oil Production

- During the first nine months of 2001, the company drilled 514
  new wells in its coalbed fields and in other operated fields in
  Montana and Colorado.

- Combined natural gas and oil production at this segment is
  expected to be approximately 30 percent higher in 2001 than in 2000.
  In 2002, this segment expects a combined production increase of
  approximately 30 percent over 2001 levels.

- The company's estimates for natural gas prices in the Rocky
  Mountain Region for November and December 2001 are in the range of
  $2.00 to $2.50 per Mcf.  The company's estimates for natural gas
  prices on the NYMEX for November and December 2001 are in the range
  of $2.50 to $3.25 per Mcf.

- During the first nine months of 2001, more than half of this
  segment's natural gas production was priced using Mid-Continent or
  Rocky Mountain prices.

- For 2002, the company's estimates for natural gas prices in the
  Rocky Mountain Region are in the range of $2.25 to $2.75 per Mcf and
  estimates for natural gas prices on the NYMEX are in the range of
  $2.75 to $3.50.

- The company's estimates for NYMEX crude oil prices are in the
  range of $20 to $25 per barrel for the remainder of 2001 and for
  2002.

- This segment has entered into hedging arrangements for a
  portion of its 2001 production.  The company has entered into swap
  agreements and fixed price forward sales representing approximately
  30 percent to 35 percent of 2001 estimated annual natural gas
  production.  Natural gas swap prices range from $4.57 to $5.39 per
  Mcf based on NYMEX and $4.04 to $4.44 per Mcf for Rocky Mountain gas
  sales.  In addition, approximately 30 percent to 35 percent of 2001
  estimated annual oil production is hedged at NYMEX prices ranging
  from $27.51 to $29.22 per barrel.

- This segment has hedged a portion of its 2002 production.  The
  company has entered into a swap agreement and fixed price forward
  sales representing approximately 10 percent to 15 percent of 2002
  estimated annual natural gas production.  The natural gas swap is at
  an average NYMEX price of $4.34 per Mcf.  The company has also
  entered into oil swap agreements at average NYMEX prices in the
  range of $24.80 to $25.25 per barrel, representing approximately 20
  percent to 25 percent of the company's 2002 estimated annual oil
  production.

Construction Materials and Mining

- Aggregate, asphalt and ready-mixed concrete volumes are
  expected to increase by approximately 35 percent to 45 percent, 75
  percent to 85 percent and 40 percent to 50 percent, respectively, in
  2001.

- This segment's goal is to achieve compound annual revenue and
  earnings growth rates of approximately 10 percent to 20 percent over
  the next five years.  However, the general weakening of the economy
  combined with the recent terrorist events have added uncertainty in
  the ability of the company to achieve this goal in the early years
  of the planning cycle.

- With the acquisitions made this year, aggregate reserves now
  total more than 1 billion tons.

- With the acquisitions made this year and strong performance in
  existing markets, 2001 revenues at this segment are expected to
  exceed $750 million.

New Accounting Standards

    In June 2001, the Financial Accounting Standards Board (FASB)
approved Statement of Financial Accounting Standards No. 141,
"Business Combinations" (SFAS No. 141), Statement of Financial
Accounting Standards No. 142, "Goodwill and Other Intangible Assets"
(SFAS No. 142), and Statement of Financial Accounting Standards No.
143, "Accounting for Asset Retirement Obligations" (SFAS No. 143).
In August 2001, the FASB approved Statement of Financial Accounting
Standards No. 144, "Accounting for the Impairment or Disposal of
Long-lived Assets" (SFAS No. 144).  For more information on SFAS No.
141, SFAS No. 142, SFAS No. 143, and SFAS No. 144 see Note 6 of
Notes to Consolidated Financial Statements.

Liquidity and Capital Commitments

     Net capital expenditures for the year 2001 are estimated at
$424.2 million, including those for acquisitions to date, system
upgrades, routine replacements, service extensions, routine
equipment maintenance and replacements, pipeline and gathering
expansion projects, the building of construction materials handling
and transportation facilities, the further enhancement of natural
gas and oil production and reserve growth, and for potential future
acquisitions and other growth opportunities.  The company continues
to evaluate potential future acquisitions and other growth
opportunities; however, they are dependent upon the availability of
economic opportunities and, as a result, actual acquisitions and
capital expenditures may vary significantly from the estimated 2001
capital expenditures referred to above.  It is anticipated that all
of the funds required for capital expenditures will be met from
various sources.  These sources include internally generated funds,
the company's $40 million revolving credit and term loan agreement,
none of which is outstanding at September 30, 2001, a commercial
paper credit facility at Centennial, as described below, and through
the issuance of long-term debt and the company's equity securities.

     The estimated 2001 capital expenditures referred to above
include completed 2001 acquisitions including construction materials
and mining businesses based in Hawaii, Minnesota, and Oregon,
utility services businesses based in Missouri and Oregon, and an
energy services company specializing in cable and pipeline locating
and tracking systems.  Pro forma financial amounts reflecting the
effects of the above acquisitions are not presented as such
acquisitions were not material to the company's financial position
or results of operations.

     Centennial, a direct wholly owned subsidiary of the company, has
a revolving credit agreement with various banks that supports
Centennial's $350 million commercial paper program.  Under the
commercial paper program, $299.4 million was outstanding at
September 30, 2001.  The commercial paper borrowings are classified
as long term as Centennial intends to refinance these borrowings on
a long-term basis through continued commercial paper borrowings
supported by the revolving credit agreement.  Centennial intends to
renew this existing credit agreement on an annual basis.

     Centennial has an uncommitted long-term master shelf agreement
that allows for borrowings of up to $300 million.  Under the master
shelf agreement, $210 million was outstanding at September 30, 2001.

     On September 28, 2001, the company reported the sale of 1,105,353
shares of the company's Common Stock to Acqua Wellington North
American Equities Fund, Ltd. (Acqua Wellington), pursuant to a
purchase agreement by and between the company and Acqua Wellington.
The company received proceeds from this sale of $25 million.  These
proceeds are anticipated to be used for refunding of outstanding
debt obligations and for other general corporate purposes.

     The company's issuance of first mortgage debt is subject to
certain restrictions imposed under the terms and conditions of
its Indenture of Mortgage.  Generally, those restrictions require
the company to pledge $1.43 of unfunded property to the Trustee for
each dollar of indebtedness incurred under the Indenture and that
annual earnings (pretax and before interest charges), as defined in
the Indenture, equal at least two times its annualized first
mortgage bond interest costs.  Under the more restrictive of the two
tests, as of September 30, 2001, the company could have issued
approximately $300 million of additional first mortgage bonds.

     The company's coverage of fixed charges including preferred
dividends was 5.4 times and 4.1 times for the twelve months ended
September 30, 2001, and December 31, 2000, respectively.
Additionally, the company's first mortgage bond interest coverage
was 9.6 times and 8.3 times for the twelve months ended
September 30, 2001, and December 31, 2000, respectively.  Common
stockholders' equity as a percent of total capitalization was 56
percent and 54 percent at September 30, 2001, and December 31, 2000,
respectively.

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

     There are no material changes in market risk faced by the company
from those reported in the company's Annual Report on Form 10-K for
the year ended December 31, 2000.  For more information on market
risk, see Part II, Item 7A in the company's Annual Report on Form 10-
K for the year ended December 31, 2000, and Notes to Consolidated
Financial Statements in this form 10-Q.

                    PART II -- OTHER INFORMATION

ITEM 1.  LEGAL PROCEEDINGS

     On September 12, 2001, the defendants in the Quinque legal
proceeding filed a motion to dismiss with the State District Court.
For more information on this legal action, see Note 11 of Notes to
Consolidated Financial Statements.

ITEM 6.  EXHIBITS AND REPORTS ON FORM 8-K

a) Exhibits

   12   Computation of Ratio of Earnings to Fixed Charges and
        Combined Fixed Charges and Preferred Stock Dividends

b) Reports on Form 8-K

   Form 8-K was filed on September 21, 2001.  Under Item 5 -- Other
   Events, the company reported the press release issued September
   20, 2001, regarding natural gas price volatility.

   Form 8-K was filed on September 28, 2001.  Under Item 5 -- Other
   Events, the company reported the sale of 1,105,353 shares of
   company Common Stock to Acqua Wellington North American Equities
   Fund, Ltd.


                           SIGNATURES


      Pursuant to the requirements of the Securities Exchange Act
of 1934, the registrant has duly caused this report to be signed
on its behalf by the undersigned thereunto duly authorized.


                               MDU RESOURCES GROUP, INC.




DATE  October 26, 2001         BY   /s/ Warren L. Robinson
                                   Warren L. Robinson
                                   Executive Vice President,
                                     Treasurer and Chief
                                     Financial Officer



                               BY   /s/ Vernon A. Raile
                                   Vernon A. Raile
                                   Vice President, Controller and
                                     Chief Accounting Officer


                         EXHIBIT INDEX





Exhibit No.

12      Computation of Ratio of Earnings to Fixed Charges
        and Combined Fixed Charges and Preferred Stock
        Dividends