OVERVIEW

NorthWestern Corporation, doing business as NorthWestern Energy, provides
electricity and natural gas to approximately 734,800 customers in Montana, South
Dakota and Nebraska. For a discussion of NorthWestern's business strategy, see
Management's Discussion and Analysis of Financial Condition and Results of
Operations in our   Annual Report on Form 10-K for the year ended December 31,
2019.

We are working to deliver safe, reliable and innovative energy solutions that
create value for our customers, communities, employees and investors. This
includes bridging our history as a regulated utility safely providing low-cost
and reliable service with our future as a globally-aware company offering a
broader array of services performed by highly-adaptable and skilled employees.
We seek to deliver value to our customers by providing high reliability and
customer service, and an environmentally sustainable generation mix at an
affordable price. We are focused on delivering long-term shareholder value by
continuing to invest in our system including:

•      Infrastructure investment focused on a stronger and smarter grid to
       improve the customer experience, while enhancing grid reliability and
       safety. This includes automation in distribution and substations that
       enables the use of changing technology.

• Integrating supply resources that balance reliability, cost, capacity, and

sustainability considerations with more predictable long-term commodity

prices.

• Continually improving our operating efficiency. Financial discipline is

essential to earning our authorized return on invested capital and

maintaining a strong balance sheet, stable cash flows, and quality credit


       ratings.



We expect to pursue these investment opportunities and manage our business in a manner that allows us to be flexible in adjusting to changing economic conditions by adjusting the timing and scale of the projects.



As you read this discussion and analysis, refer to our Condensed Consolidated
Statements of Income, which present the results of our operations for the three
months ended March 31, 2020 and 2019.


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  HOW WE PERFORMED AGAINST OUR FIRST QUARTER 2019 RESULTS


                                                            Three months

ended March 31, 2020 vs. 2019


                                                   Income Before Income    Income Tax (Expense)
                                                          Taxes                  Benefit             Net Income
                                                                           (in millions)
First Quarter 2019                                 $         74.4          $         (1.6 )        $        72.8
Items (decreasing) increasing net income:
Lower electric retail volumes                                (8.7 )                   2.2                   (6.5 )
Lower natural gas retail volumes                             (8.4 )                   2.1                   (6.3 )
Higher operating, general, and administrative
expenses impacting net income                                (1.8 )                   0.5                   (1.3 )
Lower Montana electric transmission revenue                  (1.2 )                   0.3                   (0.9 )
Lower Montana natural gas rates                              (0.6 )                   0.2                   (0.4 )
Higher Montana electric retail rates                          1.6                    (0.4 )                  1.2
Lower depreciation and depletion                              0.3                    (0.1 )                  0.2
Other                                                        (6.7 )                  (1.4 )                 (8.1 )
First Quarter 2020                                 $         48.9          $          1.8          $        50.7
Change in Net Income                                                                               $       (22.1 )

Consolidated net income for the three months ended March 31, 2020 was $50.7 million as compared with $72.8 million for the same period in 2019. This decrease was primarily due to lower loads in our electric and natural gas segments due to warmer winter weather, higher operating, general and administrative costs impacting net income, and lower transmission revenue, offset in part by an increase in Montana electric retail rates.

Following is a brief overview of significant items for 2020.

SIGNIFICANT TRENDS AND REGULATION

COVID-19 Pandemic



We are one of many companies providing essential services during this national
emergency related to the COVID-19 pandemic. We implemented a comprehensive set
of actions to help our customers, communities, and employees, while maintaining
our commitments to provide reliable service and to continue to monitor and adapt
our financial business plan for the evolving COVID-19 challenges. In addition to
announcing an incremental $300,000 in charitable contributions and aid to assist
the communities we serve, we have taken extra precautions for our employees who
work in the field and for employees who continue to work in our facilities, and
we have implemented work from home policies where appropriate. Currently, we do
not anticipate any employee layoffs and are continuing to hire for critical
positions to maintain our high level of reliability and customer service. We
continue to implement strong physical and cyber-security measures to ensure that
our systems remain functional in order to serve our operational needs with a
remote workforce and to keep our operations running to ensure uninterrupted
service to our customers. We have informed both our retail customers and state
regulators that disconnections for non-payment will be temporarily suspended.
Our level of service to our 734,800 customers remains uninterrupted.

In response to COVID-19, President Donald Trump signed into law the CARES Act on
March 27, 2020. The CARES Act provides numerous tax provisions and other
stimulus measures, including temporary changes regarding the prior and future
utilization of net operating losses, temporary changes to the prior and future
limitations on interest deductions, temporary suspension of certain payment
requirements for the employer portion of Social Security taxes, technical
corrections from prior tax legislation for tax depreciation of certain qualified
improvement property, and the creation of certain refundable employee retention
credits. We evaluated the provisions of the CARES Act and do not anticipate the
associated impacts, if any, will have a material effect on our financial
position or liquidity.


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2020 Outlook - This is a rapidly evolving situation that could lead to extended
disruption of economic activity. We have not experienced major declines in
customer usage across our business related to COVID-19. Nonetheless, as a result
of the spread of COVID-19 in our service territories, business curtailments,
'shelter in place' or 'stay at home' orders and travel restrictions, we may
experience impacts to our financial results going forward. In addition, while we
have not experienced significant supply chain issues, so far, we continue to
closely manage and monitor developments in our supply chain. There may also be
material delays in scheduling proceedings and hearings, and in obtaining orders
from federal and state courts and regulatory agencies; these delays could
negatively affect us financially. An extended slowdown of the United States'
economic growth, demand for commodities and/or material changes in governmental
policy could result in lower economic growth and lower demand for electricity
and natural gas as well as the ability of various customers, contractors,
suppliers and other business partners to fulfill their obligations, which could
have a material adverse effect on our results of operations, financial condition
and prospects.

If the situation leads to an extended disruption of economic activity in our
service territories, we would expect to be negatively impacted by lower sales
volumes, increased operating expenses due primarily to an increase in
uncollectible accounts, and higher interest expense offset in part by cost
control. At this time, we cannot predict the ultimate impact of COVID-19 on our
results of operations, financial condition and prospects. The likelihood these
events would materially impact our future financial results will increase the
longer business curtailments, 'shelter in place' or 'stay at home' orders and
travel restrictions remain in place.

We remain on track for our approximately $400 million capital investment as
disclosed in our annual report on Form 10-K. However, the progression of and
global response to the COVID-19 outbreak increases the risk of delays in
construction activities and equipment deliveries related to our capital
projects, including potential delays in obtaining permits from government
agencies, resulting in a potential deferral of capital expenditures. Given the
rapid and evolving nature of the COVID-19 matter, the extent of any such impacts
is uncertain.

Liquidity - We continue to maintain adequate liquidity to operate our business
and fund our ongoing capital program. As of March 31, 2020, our total net
liquidity was approximately $186.4 million, including $56.4 million of cash and
$130.0 million of revolving credit facility availability. Our $400 million
revolving credit facility, which expires December 12, 2021, contains an
accordion feature that allows us to increase our liquidity another $25 million
under certain conditions. We also have a $25 million credit facility that
provides swing-line borrowing capability, which expires March 27, 2022.

Subsequent to the three months ended March 31, 2020, as a precautionary measure
in order to increase our cash position and preserve financial flexibility in
light of uncertainty in the markets, we accessed the capital markets in two
transactions:

• On April 3, 2020, we entered into a $100 million 364-Day Term Loan Credit

Agreement (Term Loan), with two of our relationship banks, and borrowed the

full amount under the Term Loan. Borrowings from this facility allow us to

meet our temporarily increased targeted minimum liquidity threshold of $200

million, up from our long-standing $100 million level; and

• On April 14 2020, we priced $150 million principal amount 10-year, 3.21%

first mortgage bonds and expect to complete the bond issuance in May 2020.





For further discussion of these transactions see the Liquidity and Capital
Resources discussion. As previously disclosed, we are contemplating an equity
issuance in late 2020 or early 2021 to maintain and protect our current credit
ratings in balance with our current capital expenditure plans. Potential
business disruptions and deterioration of the capital markets stemming from the
COVID-19 pandemic could delay our contemplated equity issuance into 2021.

Proposed Colstrip Unit 4 Capacity Acquisition



In February 2020, we filed an application with the MPSC for pre-approval to
acquire Puget Sound Energy's (Puget) 25% interest, 185 MW of generation, in
Colstrip Unit 4 for one dollar. In addition, we sought approval to sell 90 MW of
energy to Puget through a Power Purchase Agreement for roughly 5 years at a
price indexed to hourly prices at the Mid-Columbia power hub, with a price floor
reflecting the recovery of fixed operating and maintenance costs and variable
generation costs. Our proposal included zero net effect on customer bills while
setting aside benefits from the transaction - estimated to be $4 million
annually - to address environmental compliance, remediation and decommissioning
costs associated with our existing 222 MW ownership interest in Colstrip Unit 4.
Puget remains responsible for its presale 25% ownership share of all costs for
remediation of existing environmental conditions and decommissioning regardless
of the proposed acquisition or when Colstrip Unit 4 is retired.


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Under the Ownership and Operation Agreement to which each of the Colstrip Units
3 and 4 co-owners are a party, each co-owner has a right of first refusal to our
transaction with Puget. On April 8, 2020 and on April 15, 2020, Talen provided
notices of its exercise of its right of first refusal to acquire a proportionate
share of Puget's interest in Colstrip Unit 4, which would reduce our proposed
transaction to 92.5 MW, and the sale of energy to Puget to 45 MW. We expect to
supplement our application with the MPSC by the end of April 2020 to reflect
this development. Should the MPSC decline to grant our application in all
material respects, then we have the right, under the purchase and sale agreement
with Puget, to terminate the transaction.

We expect the MPSC to establish a procedural schedule in this docket in the
second quarter of 2020. If this capacity acquisition is approved and we acquire
92.5 MW from Puget, this is expected to reduce our need for capacity identified
in our resource plan by 80 MW, which is based on resource adequacy requirements.

We also entered into an agreement with Puget to acquire an additional 95 MW
interest in the 500 kilovolt (kV) Colstrip Transmission System for net book
value at the time of the sale. The net book value is expected to range between
$2.5 million to $3.8 million. After the roughly 5-year power purchase agreement
with Puget, we will have the option to acquire another 90 MW interest in the 500
kV Colstrip Transmission System for net book value at that time. These
transmission acquisitions are conditioned upon approval and closing of the
Colstrip Unit 4 acquisition. Talen, while not a co-owner of the Colstrip
Transmission System, has asserted that its right of first refusal as to the
Colstrip Unit 4 transaction extends to the transmission portion of the
transaction. We disagree with the assertion in this regard and will oppose
Talen's efforts to obtain an interest in the Colstrip Transmission System.

Recovery of the additional rate base from these transactions, if completed, will be subject to review in the next Montana general electric rate case.

RESULTS OF OPERATIONS





Our consolidated results include the results of our divisions and subsidiaries
constituting each of our business segments. The overall consolidated discussion
is followed by a detailed discussion of gross margin by segment.

Non-GAAP Financial Measure



The following discussion includes financial information prepared in accordance
with GAAP, as well as another financial measure, Gross Margin, that is
considered a "non-GAAP financial measure." Generally, a non-GAAP financial
measure is a numerical measure of a company's financial performance, financial
position or cash flows that excludes (or includes) amounts that are included in
(or excluded from) the most directly comparable measure calculated and presented
in accordance with GAAP. We define Gross Margin as Revenues less Cost of Sales
as presented in our Condensed Consolidated Statements of Income. The following
discussion includes a reconciliation of Gross Margin to Operating Revenues, the
most directly comparable GAAP measure.

Management believes that Gross Margin provides a useful measure for investors
and other financial statement users to analyze our financial performance in that
it excludes the effect on total revenues caused by volatility in energy costs
and associated regulatory mechanisms. This information is intended to enhance an
investor's overall understanding of results. Under our various state regulatory
mechanisms, as detailed below, our supply costs are generally collected from
customers. In addition, Gross Margin is used by us to determine whether we are
collecting the appropriate amount of energy costs from customers to allow for
recovery of operating costs, as well as to analyze how changes in loads (due to
weather, economic or other conditions), rates and other factors impact our
results of operations. Our Gross Margin measure may not be comparable to that of
other companies' presentations or more useful than the GAAP information provided
elsewhere in this report.

Factors Affecting Results of Operations



Our revenues may fluctuate substantially with changes in supply costs, which are
generally collected in rates from customers. In addition, various regulatory
agencies approve the prices for electric and natural gas utility service within
their respective jurisdictions and regulate our ability to recover costs from
customers.

Revenues are also impacted by customer growth and usage, the latter of which is
primarily affected by weather. 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 our residential and commercial
customers. We measure this effect using degree-days, which is the difference
between the average daily actual temperature and a baseline temperature of 65
degrees. Heating degree-days

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result when the average daily temperature is less than the baseline. Cooling degree-days result when the average daily temperature is greater than the baseline. The statistical weather information in our regulated segments represents a comparison of this data.

OVERALL CONSOLIDATED RESULTS

Three Months Ended March 31, 2020 Compared with the Three Months Ended March 31, 2019

Consolidated net income for the three months ended March 31, 2020 was $50.7 million as compared with $72.8 million for the same period in 2019. This decrease was primarily due to lower loads in our electric and natural gas segments due to warmer winter weather and lower transmission revenue, offset in part by an increase in Montana electric retail rates and customer growth.



Consolidated operating revenues for the three months ended March 31, 2020 were
$335.3 million as compared with $384.2 million for the same period in 2019. This
decrease was primarily due to lower volumes from warmer winter weather, partly
offset by customer growth. Consolidated gross margin for the three months ended
March 31, 2020 was $244.0 million as compared with $268.5 million for the same
period in 2019, a decrease of $24.5 million.

                                            Electric              Natural Gas                Total
                                        2020        2019        2020       2019        2020        2019
                                                             (dollars in millions)
Reconciliation of operating revenue
to gross margin:
Operating Revenues                    $ 244.6     $ 273.0     $ 90.6     $ 111.2     $ 335.2     $ 384.2
Cost of Sales                            63.8        77.0       27.4        38.7        91.2       115.7
Gross Margin(1)                       $ 180.8     $ 196.0     $ 63.2     $  72.5     $ 244.0     $ 268.5

(1) Non-GAAP financial measure. See "Non-GAAP Financial Measure" above.



                             Three Months Ended March 31,
                        2020       2019      Change     % Change
                                 (dollars in millions)
Gross Margin
Electric              $ 180.8    $ 196.0    $ (15.2 )     (7.8 )%
Natural Gas              63.2       72.5       (9.3 )    (12.8 )
Total Gross Margin(1) $ 244.0    $ 268.5    $ (24.5 )     (9.1 )%

(1) Non-GAAP financial measure. See "Non-GAAP Financial Measure" above.


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Primary components of the change in gross margin include the following (in millions):


                                                             Gross Margin 2020 vs. 2019
Gross Margin Items Impacting Net Income
Electric retail volumes                                     $                   (8.7 )
Natural gas retail volumes                                                      (8.4 )
Electric transmission                                                           (1.2 )
Montana natural gas rates                                                       (0.6 )
Montana electric retail rates                                                    1.6
Other                                                                           (4.9 )
Change in Gross Margin Impacting Net Income                                    (22.2 )
Gross Margin Items Offset Within Net Income

Production tax credits flowed-through trackers                                  (1.9 )
Operating expenses recovered in trackers                                        (0.7 )
Property taxes recovered in trackers                                        

0.3


Change in Gross Margin Items Offset Within Net Income                           (2.3 )
Decrease in Consolidated Gross Margin(1)                    $               

(24.5 )

(1) Non-GAAP financial measure. See "Non-GAAP Financial Measure" above.

Consolidated gross margin for items impacting net income decreased $22.2 million due to the following items:



•      A decrease in electric volumes for our residential and commercial
       customers due to warmer winter weather, primarily in our Montana
       jurisdiction;

• A decrease in gas volumes due primarily to warmer winter weather and lower

customer usage, offset in part by customer growth;

• Lower demand to transmit energy across our transmission lines due to

market conditions and pricing;

• A decrease in Montana natural gas rates associated with the annual step

down for our Montana gas production assets; and

• A decrease in other due primarily to nonrecurring items.

These decreases were partly offset by an increase in Montana electric retail rates.

The change in consolidated gross margin also includes the following items that had no impact on net income:

• A decrease in revenue due to the increase in production tax credit

benefits passed through to customers in our tracker mechanisms, which are

offset by decreased income tax expense;

• A decrease in revenues for operating costs included in trackers, offset by

a decrease in associated operating expense; and

• An increase in revenues for property taxes included in trackers, offset by


       increased property tax expense.



                                                    Three Months Ended March 31,
                                               2020        2019      Change    % Change
                                                        (dollars in millions)
Operating Expenses (excluding cost of sales)
Operating, general and administrative        $   79.0    $  81.1    $ (2.1 )     (2.6 )%
Property and other taxes                         44.5       44.8      (0.3 )     (0.7 )
Depreciation and depletion                       45.3       45.6      (0.3 )     (0.7 )
                                             $  168.8    $ 171.5    $ (2.7 )     (1.6 )%




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Consolidated operating, general and administrative expenses were $79.0 million
for the three months ended March 31, 2020, as compared with $81.1 million for
the three months ended March 31, 2019. Primary components of the change include
the following (in millions):
                                                                   Operating, General &
                                                                 Administrative Expenses
                                                                      2020 vs. 2019
Operating, General & Administrative Expenses Impacting Net
Income
Generation costs                                                 $                  1.4
Other                                                                               0.4
Change in Items Impacting Net Income                                        

1.8

Operating, General & Administrative Expenses Offset Within Net Income Pension and other postretirement benefits

1.7


Operating expenses recovered in trackers                                           (0.7 )
Non-employee directors deferred compensation                                

(4.9 ) Change in Operating, General & Administrative Expense Items Offset Within Net Income

                                                           (3.9 )
Decrease in Operating, General & Administrative Expenses         $          

(2.1 )





Consolidated operating, general and administrative expenses for items impacting
net income increased $1.8 million, which includes increased costs associated
with our Montana generation resource plan request for proposal process and other
maintenance.

The change in consolidated operating, general and administrative expenses also includes the following items that had no impact on net income:

• The regulatory treatment of the non-service cost components of pension and

postretirement benefit expense, which is offset in other income;

• Lower operating expenses included in trackers recovered through revenue; and

• A change in value of non-employee directors deferred compensation due to

changes in our stock price, offset in other income.





Property and other taxes were $44.5 million for the three months ended March 31,
2020, as compared with $44.8 million in the same period of 2019. This slight
decrease was due primarily to lower MPSC tax and invasive species tax, offset in
part by an increase in Montana state and local taxes. We estimate property taxes
throughout each year, and update those estimates based on valuation reports
received from the Montana Department of Revenue. Under Montana law, we are
allowed to track the increases in the actual level of state and local taxes and
fees and adjust our rates to recover the increase between rate cases less the
amount allocated to FERC-jurisdictional customers and net of the associated
income tax benefit.

Depreciation and depletion expense was $45.3 million for the three months ended
March 31, 2020, as compared with $45.6 million in the same period of 2019. This
slight decrease was primarily due to a depreciation adjustment consistent with
the final order in our Montana electric rate case, partly offset by plant
additions.

Consolidated operating income for the three months ended March 31, 2020 was $75.2 million as compared with $97.0 million in the same period of 2019. This decrease was primarily due to the decrease in gross margin discussed above.

Consolidated interest expense for the three months ended March 31, 2020 was $24.3 million as compared with $23.8 million in the same period of 2019, due primarily to higher borrowings.



Consolidated other expense was $2.0 million for the three months ended March 31,
2020 as compared to other income of $1.1 million during the same period of 2019.
This change includes a $4.9 million decrease in the value of deferred shares
held in trust for non-employee directors deferred compensation, partially offset
by a decrease in other pension expense of $1.7 million, both of which are offset
in operating, general, and administrative expense with no impact to net income.

Consolidated income tax benefit for the three months ended March 31, 2020 was
$1.8 million as compared with income tax expense of $1.6 million in the same
period of 2019. Our effective tax rate for the three months ended March 31, 2020
was

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(3.7)% as compared with 2.1% for the same period in 2019. We expect our effective tax rate to range between (5)% to 0% in 2020.

The following table summarizes the differences between our effective tax rate and the federal statutory rate (in millions):


                                                      Three Months Ended March 31,
                                                       2020                  2019
Income Before Income Taxes                      $ 48.9                $ 74.4

Income tax calculated at federal statutory rate 10.3 21.0 % 15.6 21.0 %



Permanent or flow-through adjustments:
State income tax, net of federal provisions          -         -         0.9       1.2
Flow-through repairs deductions                   (7.4 )   (15.2 )      (7.9 )   (10.7 )
Production tax credits                            (3.6 )    (7.4 )      (4.4 )    (6.0 )
Share-based compensation                          (0.6 )    (1.2 )       0.2       0.3
Amortization of excess deferred income tax        (0.4 )    (0.7 )      (1.4 )    (1.8 )
Plant and depreciation of flow-through items       0.1       0.3        (1.5 )    (2.0 )
Recognition of unrecognized tax benefit              -         -         0.4       0.5
Other, net                                        (0.2 )    (0.5 )      (0.3 )    (0.4 )
                                                 (12.1 )   (24.7 )     (14.0 )   (18.9 )

Income tax (benefit) expense                    $ (1.8 )    (3.7 )%   $  

1.6 2.1 %





We compute income tax expense for each quarter based on the estimated annual
effective tax rate for the year, adjusted for certain discrete items. Our
effective tax rate typically differs from the federal statutory tax rate
primarily due to the regulatory impact of flowing through federal and state tax
benefits of repairs deductions, state tax benefit of accelerated tax
depreciation deductions (including bonus depreciation when applicable) and
production tax credits.

Consolidated net income for the three months ended March 31, 2020 was $50.7 million as compared with $72.8 million for the same period in 2019. This decrease was primarily due to lower gross margin.


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ELECTRIC SEGMENT

We have various classifications of electric revenues, defined as follows:

• Retail: Sales of electricity to residential, commercial and industrial


       customers.


•      Regulatory amortization: Primarily represents timing differences for
       electric supply costs and property taxes between when we incur these costs
       and when we recover these costs in rates from our customers.

• Transmission: Reflects transmission revenues regulated by the FERC.

• Wholesale and other are largely gross margin neutral as they are offset by


       changes in cost of sales.




Three Months Ended March 31, 2020 Compared with the Three Months Ended March 31,
2019
                                           Results
                           2020        2019      Change     % Change
                                    (dollars in millions)

Retail revenues $ 234.1 $ 238.7 $ (4.6 ) (1.9 )% Regulatory amortization (3.6 ) 19.1 (22.7 ) (118.8 )


   Total retail revenues   230.5       257.8      (27.3 )    (10.6 )
Transmission                12.6        13.5       (0.9 )     (6.7 )
Wholesale and Other          1.5         1.7       (0.2 )    (11.8 )
Total Revenues             244.6       273.0      (28.4 )    (10.4 )
Total Cost of Sales         63.8        77.0      (13.2 )    (17.1 )
Gross Margin(1)          $ 180.8     $ 196.0    $ (15.2 )     (7.8 )%

(1) Non-GAAP financial measure. See "Non-GAAP Financial Measure" above.



                               Revenues              Megawatt Hours (MWH)          Avg. Customer Counts
                          2020          2019           2020          2019            2020            2019
                                          (in thousands)
Montana                $  88,639     $  94,096            734          807        305,969          302,158
South Dakota              18,918        18,015            180          196         50,642           50,670
  Residential            107,557       112,111            914        1,003        356,611          352,828
Montana                   86,005        86,710            791          816         69,691           68,263
South Dakota              26,495        23,160            291          284         12,735           12,770
Commercial               112,500       109,870          1,082        1,100         82,426           81,033
Industrial                 8,759        11,581            675          701             78               77
Other                      5,249         5,147             21           23          4,805            4,799
Total Retail Electric  $ 234,065     $ 238,709          2,692        2,827        443,920          438,737



                   Heating Degree Days             2020 as compared with:
             2020    2019    Historic Average      2019      Historic Average
Montana      3,128   4,062        3,209         23% warmer      3% warmer
South Dakota 4,029   4,661        4,060         14% warmer      1% warmer




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The following summarizes the components of the changes in electric gross margin for the three months ended March 31, 2020 and 2019 (in millions):


                                                             Gross Margin 2020 vs. 2019
Gross Margin Items Impacting Net Income
Retail volumes                                              $                   (8.7 )
Transmission                                                                    (1.2 )
Montana electric rates                                                           1.6
Other                                                                           (4.9 )
Change in Gross Margin Impacting Net Income                                 

(13.2 )



Gross Margin Items Offset Within Net Income
Production tax credits flowed-through trackers                                  (1.9 )
Operating expenses recovered in trackers                                        (0.8 )
Property taxes recovered in trackers                                        

0.7


Change in Gross Margin Items Offset Within Net Income                           (2.0 )
Decrease in Gross Margin(1)                                 $                  (15.2 )

(1) Non-GAAP financial measure. See "Non-GAAP Financial Measure" above.

Gross margin for items impacting net income decreased $13.2 million primarily due to the following items:

• A decrease in electric volumes for our residential and commercial

customers due to warmer winter weather, primarily in our Montana

jurisdiction;

• Lower demand to transmit energy across our transmission lines due to

market conditions and pricing; and

• A decrease in other due primarily to nonrecurring items.

These decreases were partly offset by an increase in Montana electric rates.

The change in gross margin also includes the following items that had no impact on net income:

• A decrease in revenues due to the increase in production tax credit

benefits passed through to customers in our tracker mechanisms, which are

offset by decreased income tax expense;

• A decrease in revenues for operating costs included in trackers, offset by

a decrease in associated operating expense; and

• An increase in revenues for property taxes included in trackers, offset by

increased property tax expense.





The change in regulatory amortization revenue is due to timing differences
between when we incur electric supply costs and when we recover these costs in
rates from our customers, which has a minimal impact on gross margin. Our
wholesale and other revenues are largely gross margin neutral as they are offset
by changes in cost of sales.



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NATURAL GAS SEGMENT

We have various classifications of natural gas revenues, defined as follows:

• Retail: Sales of natural gas to residential, commercial and industrial


       customers.


•      Regulatory amortization: Primarily represents timing differences for
       natural gas supply costs and property taxes between when we incur these
       costs and when we recover these costs in rates from our customers, which
       is also reflected in cost of sales and therefore has minimal impact on
       gross margin.

• Wholesale: Primarily represents transportation and storage for others.





Three Months Ended March 31, 2020 Compared with the Three Months Ended March 31,
2019

                                           Results
                           2020       2019       Change     % Change
                                    (dollars in millions)

Retail revenues $ 87.4 $ 106.8 $ (19.4 ) (18.2 )% Regulatory amortization (6.4 ) (5.3 ) (1.1 ) 20.8


   Total retail revenues   81.0       101.5       (20.5 )    (20.2 )
Wholesale and other         9.6         9.7        (0.1 )     (1.0 )
Total Revenues             90.6       111.2       (20.6 )    (18.5 )
Total Cost of Sales        27.4        38.7       (11.3 )    (29.2 )
Gross Margin(1)          $ 63.2     $  72.5     $  (9.3 )    (12.8 )%

(1) Non-GAAP financial measure. See "Non-GAAP Financial Measure" above.



                        Revenues             Dekatherms (Dkt)        Customer Counts
                   2020         2019          2020        2019       2020       2019
                                 (in thousands)
Montana          $ 38,295    $  45,638       5,637        6,875    176,607    174,470
South Dakota       10,271       13,042       1,584        1,747     40,589     40,302
Nebraska            7,687        9,640       1,295        1,497     37,622     37,634
Residential        56,253       68,320       8,516       10,119    254,818    252,406
Montana            19,154       23,017       2,923        3,599     24,464     24,199
South Dakota        7,294        9,207       1,592        1,605      6,917      6,841
Nebraska            4,061        5,300         889        1,050      5,000      4,922
Commercial         30,509       37,524       5,404        6,254     36,381     35,962
Industrial            340          482          53           77        233        241
Other                 343          440          62           78        152        165
Total Retail Gas $ 87,445    $ 106,766      14,035       16,528    291,584    288,774



                   Heating Degree Days             2020 as compared with:
             2020    2019    Historic Average      2019      Historic Average
Montana      3,136   4,052        3,302         23% warmer      5% warmer
South Dakota 4,029   4,661        4,060         14% warmer      1% warmer
Nebraska     3,074   3,634        3,370         15% warmer      9% warmer


The following summarizes the components of the changes in natural gas gross margin for the three months ended March 31, 2020 and 2019:


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                                                              Gross Margin 2020 vs. 2019
                                                                     (in millions)
Gross Margin Items Impacting Net Income
Retail volumes                                              $                    (8.4 )
Montana rates                                                                    (0.6 )
Change in Gross Margin Impacting Net Income                                 

(9.0 )



Gross Margin Items Offset Within Net Income
Property taxes recovered in trackers                                             (0.4 )
Operating expenses recovered in trackers                                    

0.1


Change in Gross Margin Items Offset Within Net Income                            (0.3 )
Decrease in Gross Margin(1)                                 $                    (9.3 )

(1) Non-GAAP financial measure. See "Non-GAAP Financial Measure" above.

Gross margin for items impacting net income decreased $9.0 million primarily due:

• A decrease in volumes due to warmer winter weather, offset in part by

customer growth; and

• A reduction of rates from the step down of our Montana gas production assets.

The change in gross margin also includes the following items that had no impact on net income:

• A decrease in revenues for property taxes included in trackers, offset by

lower recoverable property tax expense; and

• An increase in revenues for operating costs included in trackers, offset

by increased operating expense.

Our wholesale and other revenues are largely gross margin neutral as they are offset by changes in cost of sales.


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    LIQUIDITY AND CAPITAL RESOURCES


Sources and Uses of Funds



We require liquidity to support and grow our business, and use our liquidity for
working capital needs, capital expenditures, investments in or acquisitions of
assets, and to repay debt. We believe our cash flows from operations, existing
borrowing capacity, and issuance of debt securities should be sufficient to fund
our operations, service existing debt, pay dividends, and fund capital
expenditures (excluding strategic growth opportunities). The amount of capital
expenditures and dividends are subject to certain factors including the use of
existing cash, cash equivalents and the receipt of cash from operations. In
addition, a material change in operations or available financing could impact
our current liquidity and ability to fund capital resource requirements, and we
may defer a portion of our planned capital expenditures as necessary.

We issue debt securities to refinance retiring maturities, fund construction
programs and for other general corporate purposes. To fund our strategic growth
opportunities, we utilize available cash flow, debt capacity and equity
issuances that allow us to maintain investment grade ratings. We plan to
maintain a 50 - 55 percent debt to total capital ratio excluding finance leases,
and expect to continue to target a long-term dividend payout ratio of 60 - 70
percent of earnings per share; however, there can be no assurance that we will
be able to meet these targets.

Subsequent to the end of our first quarter, and as discussed above in the
Significant Trends and Regulation section of Management's Discussion and
Analysis, in response to the COVID-19 pandemic and as a precautionary measure in
order to increase our cash position and preserve financial flexibility in light
of current uncertainty in the markets, we entered into a $100 million Term Loan.
On April 3, 2020 we borrowed the full amount under the Term Loan and used the
proceeds to pay down a portion of outstanding revolving credit facility
borrowings and for general corporate purposes. The Term Loan bears interest at
available rates tied to the Eurodollar rate plus a credit spread of 1.50%. All
principal and unpaid interest under the Term Loan is due and payable on April 2,
2021. The Term Loan provides for prepayment of the principal and interest;
however, amounts prepaid may not be reborrowed. The Term Loan requires us to
maintain a consolidated indebtedness to total capitalization ratio of 65 percent
or less. Failure to comply with this covenant would entitle the banks to
terminate their lending commitments and to accelerate the maturity of all
amounts outstanding. As of April 17, 2020, we were in compliance with this
covenant.

In addition, in April 2020, we priced $100 million principal amount of Montana
First Mortgage Bonds and $50 million principal amount of South Dakota First
Mortgage Bonds, at a fixed interest rate of 3.21% maturing in 2030. We expect
these transactions to close in May 2020.

Liquidity is provided by internal cash flows and the use of our credit
facilities. We have a $400 million revolving credit facility, a $25 million
revolving credit facility to provide swingline borrowing capability, and as
discussed above entered into a $100 million Term Loan in April 2020. We utilize
availability under our revolvers to manage our cash flows due to the seasonality
of our business, and utilize any cash on hand in excess of current operating
requirements to invest in our business and reduce borrowings. As of March 31,
2020, our total net liquidity was approximately $186.4 million, including $56.4
million of cash and $130.0 million of revolving credit facility availability. As
of March 31, 2020, there were no of letters of credit outstanding and $295.0
million in borrowings under our revolving credit facilities. Availability under
our revolving credit facilities was $265.0 million as of April 17, 2020.

We remain on track for our approximately $400 million capital investment as
disclosed in our annual report on Form 10-K. However, the progression of and
global response to the COVID-19 outbreak increases the risk of delays in
construction activities and equipment deliveries related to our capital
projects, including potential delays in obtaining permits from government
agencies, resulting in potential deferral of capital expenditures. Given the
rapid and evolving nature of the COVID-19 pandemic, the extent of any such
impacts is uncertain. We continue to monitor the disruption in capital markets
caused by COVID-19. If conditions further deteriorate and we need to access the
capital markets there can be no assurance that we will be able to obtain such
financing on commercially reasonable terms or at all. In addition, as previously
disclosed, we are contemplating an equity issuance in late 2020 or early 2021 to
maintain and protect our current credit ratings in balance with our current
capital expenditure plans. Potential business disruptions and deterioration of
the capital markets stemming from the COVID-19 pandemic could delay our
contemplated equity issuance into 2021.


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Factors Impacting our Liquidity



Supply Costs - Our operations are subject to seasonal fluctuations in cash flow.
During the heating season, which is primarily from November through March, cash
receipts from natural gas and electric sales typically exceed cash requirements.
During the summer months, cash on hand, together with the seasonal increase in
cash flows and utilization of our existing revolver, are used to purchase
natural gas to place in storage, perform maintenance, and make capital
improvements.

The effect of this seasonality on our liquidity is also impacted by changes in
electric and natural gas market prices. We recover the cost of our electric and
natural gas supply through tracking mechanisms. The natural gas supply tracking
mechanism in each of our jurisdictions, and electric supply tracking mechanism
in South Dakota are designed to provide stable recovery of supply costs, with a
monthly adjustment to correct for any under or over collection. The Montana
electric supply tracking mechanism implemented in 2018, the PCCAM, is designed
for us to absorb risk through a sharing mechanism, with 90% of the variance
above or below the established base revenues and actual costs collected from or
refunded to customers. Our electric supply rates were adjusted monthly under the
prior tracker, and under the PCCAM design are adjusted annually. In periods of
significant fluctuation of loads and / or market prices, this design impacts our
cash flows as application of the PCCAM requires that we absorb certain power
cost increases before we are allowed to recover increases from customers.

Due to the lag between our purchases of electric and natural gas commodities and
revenue receipt from customers, cyclical over and under collection situations
arise consistent with the seasonal fluctuations discussed above; therefore we
typically under collect in the fall and winter and over collect in the spring.
Fluctuations in recoveries under our cost tracking mechanisms can have a
significant effect on cash flows from operations and make year-to-year
comparisons difficult.

As of March 31, 2020, we have under collected our costs recovered through
tracking mechanisms by approximately $21.5 million. We under collected our costs
by approximately $32.5 million as of December 31, 2019 and under collected our
costs by approximately $26.1 million as of March 31, 2019.

Credit Ratings



In general, less favorable credit ratings make debt financing more costly and
more difficult to obtain on terms that are favorable to us and our customers,
may impact our trade credit availability, and could result in the need to issue
additional equity securities. Fitch Ratings (Fitch), Moody's Investors Service
(Moody's), and S&P Global Ratings (S&P) are independent credit-rating agencies
that rate our debt securities. These ratings indicate the agencies' assessment
of our ability to pay interest and principal when due on our debt. As of
April 17, 2020, our current ratings with these agencies are as follows:
        Senior Secured Rating   Senior Unsecured Rating   Commercial Paper   Outlook
Fitch             A                       A-                     F2          Negative
Moody's          A3                      Baa2                 Prime-2         Stable
S&P              A-                       BBB                   A-2           Stable



A security rating is not a recommendation to buy, sell or hold securities. Such
rating may be subject to revision or withdrawal at any time by the credit rating
agency and each rating should be evaluated independently of any other rating.


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Cash Flows

The following table summarizes our consolidated cash flows (in millions):


                                                             Three Months Ended March 31,
                                                               2020                 2019
Operating Activities
Net income                                               $        50.7         $        72.8
Non-cash adjustments to net income                                48.7                  48.7
Changes in working capital                                        62.2                  (6.5 )
Other noncurrent assets and liabilities                           (3.5 )                (3.6 )
Cash Provided by Operating Activities                            158.1                 111.4

Investing Activities
Property, plant and equipment additions                          (78.4 )               (65.6 )
Cash Used in Investing Activities                                (78.4 )               (65.6 )

Financing Activities
Line of credit borrowings (repayments), net                        6.0                 (22.0 )
Dividends on common stock                                        (30.1 )               (28.8 )
Financing costs                                                   (0.1 )                (0.1 )
Other                                                             (2.5 )                 0.8
Cash Used in Financing Activities                                (26.7 )               (50.1 )

Increase (Decrease) in Cash, Cash Equivalents, and Restricted Cash

$        53.0

$ (4.3 ) Cash, Cash Equivalents, and Restricted Cash, beginning of period

$        12.1         $        15.3
Cash, Cash Equivalents, and Restricted Cash, end of
period                                                   $        65.1         $        11.0

Cash Provided by Operating Activities



As of March 31, 2020, cash, cash equivalents, and restricted cash were $65.1
million as compared with $12.1 million at December 31, 2019 and $11.0 million at
March 31, 2019. Cash provided by operating activities totaled $158.1 million for
the three months ended March 31, 2020 as compared with $111.4 million during the
three months ended March 31, 2019. This increase in operating cash flows is
primarily due to improved collections of energy supply costs in the current
period, as compared with higher procured supply costs and credits to Montana
customers of approximately $20.5 million in the first quarter of 2019. These
improvements were offset in part by reduced net income.

Cash Used in Investing Activities



Cash used in investing activities increased by approximately $12.8 million as
compared with the first three months of 2019. Plant additions during the first
three months of 2020 include maintenance additions of approximately $54.5
million and capacity related capital expenditures of $23.9 million. Plant
additions during the first three months of 2019 included maintenance additions
of approximately $43.4 million, and capacity related capital expenditures of
approximately $22.2 million.

Cash Used in Financing Activities



Cash used in financing activities totaled $26.7 million during the three months
ended March 31, 2020 as compared with $50.1 million during the three months
ended March 31, 2019. During the three months ended March 31, 2020, cash used in
financing activities reflects payment of dividends of $30.1 million, offset in
part by net issuances under our revolving lines of credit of $6.0 million.
During the three months ended March 31, 2019, net cash used in financing
activities reflects net repayments under our revolving lines of credit of $22.0
million and the payment of dividends of $28.8 million.


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Contractual Obligations and Other Commitments



We have a variety of contractual obligations and other commitments that require
payment of cash at certain specified periods. The following table summarizes our
contractual cash obligations and commitments as of March 31, 2020. See our
Annual Report on Form 10-K for the year ended December 31, 2019 for additional
discussion.
                    Total          2020          2021          2022          2023          2024        Thereafter
                                                          (in thousands)
Long-term debt
(1)             $ 2,251,637     $       -     $ 295,000     $       -     $ 144,660     $       -     $ 1,811,977
Finance leases       19,319         1,880         2,668         2,875         3,098         3,338           5,460
Estimated
pension and
other
postretirement
obligations (2)      64,187        11,614        13,491        13,209        13,097        12,776              NA
Qualifying
facilities
liability (3)       611,660        57,400        78,356        80,226        82,320        79,726         233,632
Supply and
capacity
contracts (4)     1,881,142       132,908       154,081       155,990      

154,901       147,293       1,135,969
Contractual
interest
payments on
debt (5)          1,498,770        66,137        84,043        77,602        76,397        74,709       1,119,882

Environmental
remediation
obligations (6)       4,323         2,265           912           720           213           213              NA
Total

Commitments (7) $ 6,331,038 $ 272,204 $ 628,551 $ 330,622 $ 474,686 $ 318,055 $ 4,306,920

_________________________


(1)  Represents cash payments for long-term debt and excludes $12.2 million of
     debt discounts and debt issuance costs, net.

(2) We estimate cash obligations related to our pension and other postretirement


     benefit programs for five years, as it is not practicable to estimate
     thereafter. Pension and postretirement benefit estimates reflect our
     expected cash contributions, which may be in excess of minimum funding
     requirements.


(3)  Certain QFs require us to purchase minimum amounts of energy at prices
     ranging from $63 to $136 per MWH through 2029. Our estimated gross

contractual obligation related to these QFs is approximately $611.7 million.

A portion of the costs incurred to purchase this energy is recoverable

through rates authorized by the MPSC, totaling approximately $493.3 million.

(4) We have entered into various purchase commitments, largely purchased power,

electric transmission, coal and natural gas supply and natural gas

transportation contracts. These commitments range from one to 24 years.

(5) Contractual interest payments includes our revolving credit facilities,

which have a variable interest rate. We have assumed an average interest

rate of 2.27% on the outstanding balance through maturity of the facilities.

(6) We estimate environmental remediation obligations for five years, as it is

not practicable to estimate thereafter. Our environmental reserve relates

primarily to the remediation of former manufactured gas plant sites owned by


     us.


(7)  Potential tax payments related to uncertain tax positions are not
     practicable to estimate and have been excluded from this table.



Other Obligations - As a co-owner of Colstrip, we provided surety bonds of
approximately $22.8 million and $13.2 million
as of March 31, 2020 and December 31, 2019, respectively, on behalf of the
operator to ensure the operation and maintenance of remedial and closure actions
are carried out related to the Administrative Order on Consent Regarding Impacts
Related to Wastewater Facilities Comprising the Closed-Loop System at Colstrip
Steam Electric Stations, Colstrip Montana (the AOC) as required by the MDEQ. It
is currently anticipated that each co-owner of Colstrip will be required to post
an additional amount of financial assurance to support additional performance by
the operator of closure and remediation actions under the AOC. As costs are
incurred under the AOC, the surety bonds will be reduced.



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   CRITICAL ACCOUNTING POLICIES AND ESTIMATES



Management's discussion and analysis of financial condition and results of
operations is based on our Financial Statements, which have been prepared in
accordance with GAAP. The preparation of these Financial Statements requires us
to make estimates and assumptions that affect the reported amounts of assets,
liabilities, revenues and expenses, and related disclosure of contingent assets
and liabilities. We base our estimates on historical experience and other
assumptions that are believed to be proper and reasonable under the
circumstances.

We continually evaluate the appropriateness of our estimates and assumptions.
Actual results could differ from those estimates. We consider an estimate to be
critical if it is material to the Financial Statements and it requires
assumptions to be made that were uncertain at the time the estimate was made and
changes in the estimate are reasonably likely to occur from period to period.
This includes the accounting for the following: regulatory assets and
liabilities, pension and postretirement benefit plans, income taxes and
qualifying facilities liability. These policies were disclosed in Management's
Discussion and Analysis of Financial Condition and Results of Operations in our

Annual Report on Form 10-K for the year ended December 31, 2019 . As of March 31, 2020, there have been no material changes in these policies.







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