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

Form 10-Q
(Mark One)
QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
FOR THE QUARTERLY PERIOD ENDED June 30, 2019March 31, 2020 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 1-3701

AVISTA CORPORATION
(Exact name of Registrant as specified in its charter)
Washington 91-0462470
(State or other jurisdiction of
incorporation or organization)
 (I.R.S. Employer
Identification No.)
1411 East Mission Avenue, Spokane, Washington 99202-2600
(Address of principal executive offices, including zip code)
Registrant’s telephone number, including area code: 509-489-0500
None
(Former name, former address and former fiscal year, if changed since last report)
Securities registered pursuant to Section 12(b) of the Act:
Title of Each ClassTrading Symbol(s)Name of Each Exchange on Which Registered
Common StockAVANew York Stock Exchange
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the Registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days:    Yes      No  
Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes      No  
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and "emerging growth company" in Rule 12b-2 of the Exchange Act.
Large accelerated filerAccelerated filer
Non-accelerated filerSmaller reporting company
Emerging growth company  
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the
Exchange Act
Indicate by check mark whether the Registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act):    Yes      No  
As of August 2, 2019May 1, 2020, 66,111,43767,293,360 shares of Registrant’s Common Stock, no par value (the only class of common stock), were outstanding.



AVISTA CORPORATION



AVISTA CORPORATION
INDEX
Item No.  
Page
No.
    
  
  
  
  
Item 1. 
  
  
  
  
  
  
  
  
  
  
  
  
  
 
 
  
  
  
  
  
  
  
  
  
  
    
Item 2. 
  
  
  
  
  
  
  
  
  
  
  

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Item 3. 
    
Item 4. 
    
  
Item 1. 
    
Item 1A. 
    
Item 6. 
    
  
 

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ACRONYMS AND TERMS
(The following acronyms and terms are found in multiple locations within the document)
Acronym/TermMeaning
aMW-Average Megawatt - a measure of the average rate at which a particular generating source produces energy over a period of time
AEL&P-Alaska Electric Light and Power Company, the primary operating subsidiary of AERC, which provides electric services in Juneau, Alaska
AERC-Alaska Energy and Resources Company, the Company's wholly-owned subsidiary based in Juneau, Alaska
AFUDC-Allowance for Funds Used During Construction; represents the cost of both the debt and equity funds used to finance utility plant additions during the construction period
ASC-Accounting Standards Codification
ASU-Accounting Standards Update
Avista Capital-Parent company to the Company’s non-utility businesses, with the exception of AJT Mining Properties, Inc., which is a subsidiary of AERC.
Avista Corp.-Avista Corporation, the Company
Avista Utilities-Operating division of Avista Corp. (not a subsidiary) comprising the regulated utility operations in the Pacific Northwest
Capacity-The rate at which a particular generating source is capable of producing energy, measured in KW or MW
Cabinet Gorge-The Cabinet Gorge Hydroelectric Generating Project, located on the Clark Fork River in Idaho
Colstrip-The coal-fired Colstrip Generating Plant in southeastern Montana
Cooling degree days-The measure of the warmness of weather experienced, based on the extent to which the average of high and low temperatures for a day exceeds 65 degrees Fahrenheit (annual degree days above historic indicate warmer than average temperatures)
COVID-19-Coronavirus disease 2019, a respiratory illness that was declared a pandemic in March 2020
Deadband or ERM deadband-The first $4.0 million in annual power supply costs above or below the amount included in base retail rates in Washington under the ERM in the state of Washington
EIM-Energy Imbalance Market
Energy-The amount of electricity produced or consumed over a period of time, measured in KWh or MWh. Also, refers to natural gas consumed and is measured in dekatherms
EPA-Environmental Protection Agency
ERM-The Energy Recovery Mechanism, a mechanism for accounting and rate recovery of certain power supply costs accepted by the utility commission in the state of Washington
FASB-Financial Accounting Standards Board
FCA-Fixed Cost Adjustment, the electric and natural gas decoupling mechanism in Idaho
FERC-Federal Energy Regulatory Commission
GAAP-Generally Accepted Accounting Principles
Heating degree days-The measure of the coldness of weather experienced, based on the extent to which the average of high and low temperatures for a day falls below 65 degrees Fahrenheit (annual degree days below historic indicate warmer than average temperatures).
Hydro One-Hydro One Limited, based in Toronto, Ontario, Canada
IPUC-Idaho Public Utilities Commission
Juneau-The City and Borough of Juneau, Alaska
KW, KWh-Kilowatt (1000 watts): a measure of generating power or capability. Kilowatt-hour (1000 watt hours): a measure of energy produced over a period of time
MPSC-Public Service Commission of the State of Montana
MW, MWh-Megawatt: 1000 KW. Megawatt-hour: 1000 KWh
Noxon Rapids-The Noxon Rapids Hydroelectric Generating Project, located on the Clark Fork River in Montana

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OPUC-The Public Utility Commission of Oregon
PCA-The Power Cost Adjustment mechanism, a procedure for accounting and rate recovery of certain power supply costs accepted by the utility commission in the state of Idaho

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AVISTA CORPORATION



PGA-Purchased Gas Adjustment
PPA-Power Purchase Agreement
RCA-The Regulatory Commission of Alaska
REC-Renewable energy credit
ROE-Return on equity
ROR-Rate of return on rate base
ROU-Right-of-use lease asset
SEC-U.S. Securities and Exchange Commission
TCJA-The "Tax Cuts and Jobs Act," signed into law on December 22, 2017
Therm-Unit of measurement for natural gas; a therm is equal to approximately one hundred cubic feet (volume) or 100,000 BTUs (energy)
Watt-Unit of measurement of electric power or capability; a watt is equal to the rate of work represented by a current of one ampere under a pressure of one volt
WUTC-Washington Utilities and Transportation Commission


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AVISTA CORPORATION



Forward-Looking Statements
From time to time, we make forward-looking statements such as statements regarding projected or future:
financial performance;
cash flows;
capital expenditures;
dividends;
capital structure;
other financial items;
strategic goals and objectives;
business environment; and
plans for operations.
These statements are based upon underlying assumptions (many of which are based, in turn, upon further assumptions). Such statements are made both in our reports filed under the Securities Exchange Act of 1934, as amended (including this Quarterly Report on Form 10-Q), and elsewhere. Forward-looking statements are all statements except those of historical fact including, without limitation, those that are identified by the use of words that include “will,” “may,” “could,” “should,” “intends,” “plans,” “seeks,” “anticipates,” “estimates,” “expects,” “forecasts,” “projects,” “predicts,” and similar expressions.
Forward-looking statements (including those made in this Quarterly Report on Form 10-Q) are subject to a variety of risks, uncertainties and other factors. Most of these factors are beyond our control and may have a significant effect on our operations, results of operations, financial condition or cash flows, which could cause actual results to differ materially from those anticipated in our statements. Such risks, uncertainties and other factors include, among others:
Financial Risk
weather conditions, which affect both energy demand and electric generating capability, including the impact of precipitation and temperature on hydroelectric resources, the impact of wind patterns on wind-generated power, weather-sensitive customer demand, and similar impacts on supply and demand in the wholesale energy markets;
our ability to obtain financing through the issuance of debt and/or equity securities, which can be affected by various factors including our credit ratings, interest rates, other capital market conditions and global economic conditions;
changes in interest rates that affect borrowing costs, our ability to effectively hedge interest rates for anticipated debt issuances, variable interest rate borrowing and the extent to which we recover interest costs through retail rates collected from customers;
changes in actuarial assumptions, interest rates and the actual return on plan assets for our pension and other postretirement benefit plans, which can affect future funding obligations, pension and other postretirement benefit expense and the related liabilities;
deterioration in the creditworthiness of our customers;
the outcome of legal proceedings and other contingencies;
economic conditions in our service areas, including the economy's effects on customer demand for utility services;
declining energy demand related to customer energy efficiency, conservation measures and/or increased distributed generation;
changes in the long-term climate and weather may materially affect, among other things, customer demand, the volume and timing of streamflows required for hydroelectric generation, costs of generation, transmission and distribution. Increased or new risks may arise from severe weather or natural disasters, including wildfires;
industry and geographic concentrations which may increase our exposure to credit risks due to counterparties, suppliers and customers being similarly affected by changing conditions;
Utility Regulatory Risk
state and federal regulatory decisions or related judicial decisions that affect our ability to recover costs and earn a reasonable return including, but not limited to, disallowance or delay in the recovery of capital investments, operating

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AVISTA CORPORATION



costs, commodity costs, interest rate swap derivatives, the ordering of refunds to customers and discretion over allowed return on investment;
the loss of regulatory accounting treatment, which could require the write-off of regulatory assets and the loss of regulatory deferral and recovery mechanisms;
Energy CommodityOperational Risk
volatilitypandemics (including the current COVID-19 pandemic), which could disrupt our business, as well as the global, national and illiquidity in wholesale energy markets, including exchanges, the availability of willing buyers and sellers, changes in wholesale energy prices that can affect operating income, cash requirements to purchase electricity and natural gas, value received for wholesale sales, collateral required of us by individual counterparties and/or exchanges in wholesale energy transactions and credit risk to us from such transactions, and the market value of derivative assets and liabilities;
default or nonperformance on the part of any parties from whom we purchase and/or sell capacity or energy;
potential environmental regulations or lawsuits affecting our ability to utilize orlocal economy, resulting in a decline in customer demand, deterioration in the obsolescencecreditworthiness of our powercustomers, increases in operating and capital costs, delays in capital projects, disruption in supply resources;chains, and disruption, weakness and volatility in capital markets. In addition, any of these factors could negatively impact our liquidity and limit our access to capital, among other implications;
explosions, fires, accidents, pipeline ruptureswildfires ignited, or other incidents that may limit energy supplyallegedly ignited, by Avista Corp. equipment or facilities could cause significant loss of life and property, thereby causing serious operational and financial harm to Avista Corp. and our facilities or our surrounding territory, which could result in a shortage of commodities in the market that could increase the cost of replacement commodities from other sources;
Operational Riskcustomers;
severe weather or natural disasters, including, but not limited to, avalanches, wind storms, wildfires, earthquakes, snow and ice storms, that can disrupt energy generation, transmission and distribution, as well as the availability and costs of fuel, materials, equipment, supplies and support services;
explosions, fires, accidents, mechanical breakdowns or other incidents that maycould impair assets and may disrupt operations of any of our generation facilities, transmission, and electric and natural gas distribution systems or other operations and may require us to purchase replacement power;power or incur costs to repair our facilities;
explosions, fires, accidents or other incidents arising from or allegedly arising from our operations that maycould cause wildfires, injuries to the public or property damage;
blackouts or disruptions of interconnected transmission systems (the regional power grid);

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AVISTA CORPORATION



terrorist attacks, cyberattacks or other malicious acts that maycould disrupt or cause damage to our utility assets or to the national or regional economy in general, including any effects of terrorism, cyberattacks, ransomware, or vandalism that damage or disrupt information technology systems;
work forcework-force issues, including changes in collective bargaining unit agreements, strikes, work stoppages, the loss of key executives, availability of workers in a variety of skill areas, and our ability to recruit and retain employees;
increasing costs of insurance, more restrictive coverage terms and our ability to obtain insurance;
delays or changes in construction costs, and/or our ability to obtain required permits and materials for present or prospective facilities;
increasing health care costs and cost of health insurance provided to our employees and retirees;
third party construction of buildings, billboard signs, towers or other structures within our rights of way, or placement of fuel containers within close proximity to our transformers or other equipment, including overbuild atop natural gas distribution lines;
the loss of key suppliers for materials or services or other disruptions to the supply chain;
adverse impacts to our Alaska electric utility that could result from an extended outage of its hydroelectric generating resources or their inability to deliver energy, due to their lack of interconnectivity to any other electrical grids and the availability or cost of replacement power (diesel);
changing river regulation or operations at hydroelectric facilities not owned by us, which could impact our hydroelectric facilities downstream;
change in the use, availability or abundancy of water resources and/or rights needed for operation of our hydroelectric facilities;

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AVISTA CORPORATION



Compliance Risk
changes in laws, regulations, decisions and policies at the federal, state or local levels, which could materially impact both our electric and gas operations and costs of operations;
the ability to comply with the terms of the licenses and permits for our hydroelectric or thermal generating facilities at cost-effective levels;
Cyber and Technology Risk
cyberattacks on the operating systems that are used in the operation of our electric generation, transmission and distribution facilities and our natural gas distribution facilities, and cyberattacks on such systems of other energy companies with which we are interconnected, which could damage or destroy facilities or systems or disrupt operations for extended periods of time and result in the incurrence of liabilities and costs;
cyberattacks on the administrative systems that are used in the administration of our business, including customer billing and customer service, accounting, communications, compliance and other administrative functions, and cyberattacks on such systems of our vendors and other companies with which we do business, which could result in the disruption of business operations, the release of private information and the incurrence of liabilities and costs;
changes in costs that impede our ability to effectively implement new information technology systems or to operate and maintain current production technology;
changes in technologies, possibly making some of the current technology we utilize obsolete or introducing new cyber security risks;
insufficient technology skills, which could lead to the inability to develop, modify or maintain our information systems;
Strategic Risk
growth or decline of our customer base and the extentdue to which new uses for our services may materialize or decline in existing uses may decline,services, including, but not limited to, the effect of the trend toward distributed generation at customer sites;
the potential effects of negative publicity regarding our business practices, whether true or not, which could hurt our reputation and result in litigation or a decline in our common stock price;
changes in our strategic business plans, which maycould be affected by any or all of the foregoing, including the entry into new businesses and/or the exit from existing businesses and the extent of our business development efforts where potential future business is uncertain;
wholesale and retail competition including alternative energy sources, growth in customer-owned power resource technologies that displace utility-supplied energy or that may be sold back to the utility, and alternative energy suppliers and delivery arrangements;
entering into or growth of non-regulated activities may increase earnings volatility;
potential legal proceedings arising from
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the terminationrisk of the proposed acquisitionmunicipalization or other form of the Company by Hydro One;service territory reduction;
External Mandates Risk
changes in environmental laws, regulations, decisions and policies, including present and potential environmental remediation costs and our compliance with these matters;
the potential effects of initiatives, legislation or administrative rulemaking at the federal, state or local levels, including possible effects on our generating resources, prohibitions or restrictions on new or existing services, or restrictions on greenhouse gas emissions to mitigate concerns over global climate changes;
political pressures or regulatory practices that could constrain or place additional cost burdens on our distribution systems through accelerated adoption of distributed generation or electric-powered transportation or on our energy supply sources, such as campaigns to halt coal-firedfossil fuel fired power generation and opposition to other thermal generation, wind turbines or hydroelectric facilities;
wholesale and retail competition including alternative energy sources, growth in customer-owned power resource technologies that displace utility-supplied energy or that may be sold back to the utility, and alternative energy suppliers and delivery arrangements;
failure to identify changes in legislation, taxation and regulatory issues that arecould be detrimental or beneficial to our overall business;
policy and/or legislative changes in various regulated areas, including, but not limited to, environmental regulation, healthcare regulations and import/export regulations;
Financial Risk
weather conditions, which affect both energy demand and electric generating capability, including the impact of precipitation and temperature on hydroelectric resources, the impact of wind patterns on wind-generated power, weather-sensitive customer demand, and similar impacts on supply and demand in the wholesale energy markets;
our ability to obtain financing through the issuance of debt and/or equity securities, which could be affected by various factors including our credit ratings, interest rates, other capital market conditions and global economic conditions;
changes in interest rates that affect borrowing costs, our ability to effectively hedge interest rates for anticipated debt issuances, variable interest rate borrowing and the extent to which we recover interest costs through retail rates collected from customers;
changes in actuarial assumptions, interest rates and the actual return on plan assets for our pension and other postretirement benefit plans, which could affect future funding obligations, pension and other postretirement benefit expense and the related liabilities;
the outcome of legal proceedings and other contingencies;
economic conditions in our service areas, including the economy's effects on customer demand for utility services;
economic conditions nationally may affect the valuation of our unregulated portfolio companies;
declining energy demand related to customer energy efficiency, conservation measures and/or increased distributed generation;
changes in the long-term climate and weather could materially affect, among other things, customer demand, the volume and timing of streamflows required for hydroelectric generation, costs of generation, transmission and distribution. Increased or new risks may arise from severe weather or natural disasters, including wildfires;
industry and geographic concentrations which could increase our exposure to credit risks due to counterparties, suppliers and customers being similarly affected by changing conditions;
deterioration in the creditworthiness of our customers;
Energy Commodity Risk
volatility and illiquidity in wholesale energy markets, including exchanges, the availability of willing buyers and sellers, changes in wholesale energy prices that could affect operating income, cash requirements to purchase electricity and natural gas, value received for wholesale sales, collateral required of us by individual counterparties and/or exchanges in wholesale energy transactions and credit risk to us from such transactions, and the market value of derivative assets and liabilities;
default or nonperformance on the part of any parties from whom we purchase and/or sell capacity or energy;
potential environmental regulations or lawsuits affecting our ability to utilize or resulting in the obsolescence of our power supply resources;

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AVISTA CORPORATION



explosions, fires, accidents, pipeline ruptures or other incidents that could limit energy supply to our facilities or our surrounding territory, which could result in a shortage of commodities in the riskmarket that could increase the cost of municipalizationreplacement commodities from other sources;
Compliance Risk
changes in anylaws, regulations, decisions and policies at the federal, state or local levels, which could materially impact both our electric and gas operations and costs of operations; and
the ability to comply with the terms of the licenses and permits for our service territories.hydroelectric or thermal generating facilities at cost-effective levels.
Our expectations, beliefs and projections are expressed in good faith. We believe they are reasonable based on, without limitation, an examination of historical operating trends, our records and other information available from third parties. There can be no assurance that our 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. We undertake 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 risks, uncertainties and other factors emerge from time to time, and it is not possible for us to predict all such factors, nor can we assess the effect of each such factor on our business or the extent that any such factor or combination of factors may cause actual results to differ materially from those contained in any forward-looking statement.
Available Information
Our website address is www.myavista.com. We makefile annual, quarterly and current reports available on our website as soon as practicable after electronically filing these reportsand proxy statements with the SEC. The SEC maintains a website that contains these documents at www.sec.gov. We make annual, quarterly and current reports and proxy and information statements and other information regarding issuers that fileavailable on our website, www.avistacorp.com, as soon as practicable after electronically filing these documents with the SEC at www.sec.gov.SEC. Except for SEC filings or portions thereof that are specifically referred to in this report, information contained on these websites is not part of this report.



4


PART I. Financial Information
Item 1. Condensed Consolidated Financial Statements
CONDENSED CONSOLIDATED STATEMENTS OF INCOME
Avista Corporation
For the Three and Six Months Ended June 30March 31
Dollars in thousands, except per share amounts
(Unaudited)
Three months ended June 30, Six months ended June 30,
2019 2018 2019 20182020 2019
Operating Revenues:          
Utility revenues:          
Utility revenues, exclusive of alternative revenue programs$288,826
 $309,134
 $682,067
 $717,490
$393,820
 $393,241
Alternative revenue programs9,725
 3,570
 5,067
 (2,369)(4,413) (4,658)
Total utility revenues298,551
 312,704
 687,134
 715,121
389,407
 388,583
Non-utility revenues2,261
 6,594
 10,159
 13,538
823
 7,898
Total operating revenues300,812
 319,298
 697,293
 728,659
390,230
 396,481
Operating Expenses:          
Utility operating expenses:          
Resource costs88,439
 105,969
 225,786
 260,587
129,547
 137,347
Other operating expenses87,720
 81,078
 171,698
 158,376
94,496
 83,978
Merger transaction costs11
 983
 19,675
 1,655

 19,664
Depreciation and amortization55,479
 45,651
 104,393
 90,384
51,421
 48,914
Taxes other than income taxes22,908
 25,596
 54,851
 56,425
30,978
 31,943
Non-utility operating expenses:          
Other operating expenses6,332
 6,543
 13,687
 13,367
1,360
 7,355
Depreciation and amortization155
 199
 364
 380
235
 209
Total operating expenses261,044
 266,019
 590,454
 581,174
308,037
 329,410
Income from operations39,768
 53,279
 106,839
 147,485
82,193
 67,071
Interest expense25,511
 25,170
 51,162
 49,946
26,347
 25,651
Interest expense to affiliated trusts351
 302
 708
 555
270
 357
Capitalized interest(1,101) (1,139) (2,029) (2,107)(998) (928)
Merger termination fee
 
 (103,000) 

 (103,000)
Other expense (income)-net(8,268) (1,907) (9,175) 2,572
Other income-net(382) (907)
Income before income taxes23,275
 30,853
 169,173
 96,519
56,956
 145,898
Income tax expense (benefit)(1,741) 5,209
 28,276
 15,919
Income tax expense8,532
 30,017
Net income25,016
 25,644
 140,897
 80,600
48,424
 115,881
Net loss (income) attributable to noncontrolling interests303
 (67) 216
 (133)
Net income attributable to noncontrolling interests
 (87)
Net income attributable to Avista Corp. shareholders$25,319
 $25,577
 $141,113
 $80,467
$48,424
 $115,794
Weighted-average common shares outstanding (thousands), basic65,894
 65,677
 65,814
 65,658
67,239
 65,733
Weighted-average common shares outstanding (thousands), diluted65,963
 65,983
 65,883
 65,957
67,381
 65,941
          
Earnings per common share attributable to Avista Corp. shareholders:          
Basic$0.38
 $0.39
 $2.14
 $1.23
$0.72
 $1.76
Diluted$0.38
 $0.39
 $2.14
 $1.22
$0.72
 $1.76
The Accompanying Notes are an Integral Part of These Statements.

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Table of Contents

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
Avista Corporation
For the Three and Six Months Ended June 30March 31
Dollars in thousands
(Unaudited)
Three months ended June 30, Six months ended June 30,
2019 2018 2019 20182020 2019
Net income$25,016
 $25,644
 $140,897
 $80,600
$48,424
 $115,881
Other Comprehensive Income:          
Change in unfunded benefit obligation for pension and other postretirement benefit plans - net of taxes of $42, $54, $85 and $109 respectively161
 204
 321
 408
Change in unfunded benefit obligation for pension and other postretirement benefit plans - net of taxes of $54 and $43 respectively205
 160
Total other comprehensive income161
 204
 321
 408
205
 160
Comprehensive income25,177
 25,848
 141,218
 81,008
48,629
 116,041
Comprehensive loss (income) attributable to noncontrolling interests303
 (67) 216
 (133)
Comprehensive income attributable to noncontrolling interests
 (87)
Comprehensive income attributable to Avista Corporation shareholders$25,480
 $25,781
 $141,434
 $80,875
$48,629
 $115,954

The Accompanying Notes are an Integral Part of These Statements.

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Table of Contents

CONDENSED CONSOLIDATED BALANCE SHEETS
Avista Corporation
Dollars in thousands
(Unaudited) 
June 30, December 31,March 31, December 31,
2019 20182020 2019
Assets:      
Current Assets:      
Cash and cash equivalents$17,231
 $14,656
$18,919
 $9,896
Accounts and notes receivable-less allowances of $3,415 and $5,233, respectively115,493
 165,824
Accounts and notes receivable-less allowances of $4,576 and $2,419, respectively155,253
 166,657
Materials and supplies, fuel stock and stored natural gas67,659
 63,881
56,681
 66,583
Regulatory assets38,785
 48,552
13,057
 21,851
Other current assets30,599
 54,010
30,328
 40,142
Total current assets269,767
 346,923
274,238
 305,129
Net utility property4,684,654
 4,648,930
4,842,318
 4,797,007
Goodwill52,426
 57,672
52,426
 52,426
Non-current regulatory assets630,451
 614,354
750,866
 670,802
Other property and investments-net and other non-current assets240,630
 114,697
254,151
 257,092
Total assets$5,877,928
 $5,782,576
$6,173,999
 $6,082,456
Liabilities and Equity:      
Current Liabilities:      
Accounts payable$80,619
 $108,372
$88,184
 $110,219
Current portion of long-term debt and capital leases104,993
 107,645
Current portion of long-term debt52,000
 52,000
Short-term borrowings169,000
 190,000
185,000
 185,800
Regulatory liabilities37,954
 113,209
66,336
 51,715
Other current liabilities124,169
 120,358
174,286
 130,979
Total current liabilities516,735
 639,584
565,806
 530,713
Long-term debt and capital leases1,701,434
 1,755,529
Long-term debt1,843,981
 1,843,768
Long-term debt to affiliated trusts51,547
 51,547
51,547
 51,547
Pensions and other postretirement benefits214,983
 222,537
207,313
 212,006
Deferred income taxes508,139
 487,602
525,217
 528,513
Non-current regulatory liabilities789,655
 780,701
783,376
 775,436
Other non-current liabilities and deferred credits211,401
 71,031
237,664
 201,189
Total liabilities3,993,894
 4,008,531
4,214,904
 4,143,172
Commitments and Contingencies (See Notes to Condensed Consolidated Financial Statements)      
Equity:      
Avista Corporation Shareholders’ Equity:      
Common stock, no par value; 200,000,000 shares authorized; 66,111,317 and 65,688,356 shares issued and outstanding, respectively1,157,024
 1,136,491
Common stock, no par value; 200,000,000 shares authorized; 67,292,233 and 67,176,996 shares issued and outstanding, respectively1,209,312
 1,210,741
Accumulated other comprehensive loss(7,545) (7,866)(10,054) (10,259)
Retained earnings734,555
 644,595
759,837
 738,802
Total Avista Corporation shareholders’ equity1,884,034
 1,773,220
1,959,095
 1,939,284
Noncontrolling Interests
 825
Total equity1,884,034
 1,774,045
Total liabilities and equity$5,877,928
 $5,782,576
$6,173,999
 $6,082,456
The Accompanying Notes are an Integral Part of These Statements.


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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
Avista Corporation
For the SixThree Months Ended June 30March 31
Dollars in thousands
(Unaudited) 
2019 20182020 2019
Operating Activities:      
Net income$140,897
 $80,600
$48,424
 $115,881
Non-cash items included in net income:      
Depreciation and amortization104,757
 92,584
51,421
 49,123
Deferred income tax provision and investment tax credits5,577
 (1,272)(6,765) 8,883
Power and natural gas cost amortizations (deferrals), net(47,716) 6,701
6,380
 (48,084)
Amortization of debt expense1,338
 1,635
653
 669
Amortization of investment in exchange power1,225
 1,225

 613
Stock-based compensation expense7,009
 3,878
872
 4,845
Equity-related AFUDC(3,253) (2,845)(1,599) (1,485)
Pension and other postretirement benefit expense18,040
 16,025
7,952
 9,084
Other regulatory assets and liabilities and deferred debits and credits1,122
 21,323
11,902
 1,016
Change in decoupling regulatory deferral(5,444) 2,226
4,155
 4,471
Gain on sale of METALfx (before payment of transaction costs)(6,477) 
Gain on sale of investments(3,242) 
Other(3,904) 2,108
5,112
 (1,943)
Contributions to defined benefit pension plan(14,600) (14,600)(7,300) (7,300)
Cash paid for settlement of interest rate swap agreements
 (31,484)
Cash received for settlement of interest rate swap agreements
 5,594
Changes in certain current assets and liabilities:      
Accounts and notes receivable47,771
 65,843
6,078
 (9,787)
Materials and supplies, fuel stock and stored natural gas(7,225) 1,174
9,901
 (394)
Collateral posted for derivative instruments47,352
 44,080
(14,283) 3,432
Income taxes receivable10,500
 
Income taxes payable4,901
 19,360
Other current assets(8,783) 3,832
(2,166) 1,705
Accounts payable(19,393) (21,642)(19,527) 16,697
Other current liabilities(5,622) (1,560)21,905
 30,095
Net cash provided by operating activities252,671
 275,425
135,274
 196,881
      
Investing Activities:      
Utility property capital expenditures (excluding equity-related AFUDC)(199,988) (183,132)(95,525) (93,615)
Issuance of notes receivable at subsidiaries(900) (2,780)
Issuance of notes receivable by subsidiaries(2,779) (200)
Equity and property investments made by subsidiaries(6,624) (7,431)(1,313) (3,504)
Proceeds from sale of METALfx (net of cash sold)16,407
 
Proceeds from sale of investments made by subsidiaries5,148
 
Other1,072
 438
(662) (345)
Net cash used in investing activities(190,033) (192,905)(95,131) (97,664)
The Accompanying Notes are an Integral Part of These Statements.

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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (continued)
Avista Corporation
For the SixThree Months Ended June 30March 31
Dollars in thousands
(Unaudited)
2019 20182020 2019
Financing Activities:      
Net decrease in short-term borrowings$(21,000) $(105,398)$(800) $(71,000)
Proceeds from issuance of long-term debt
 374,621
Maturity of long-term debt and capital leases(1,330) (276,170)
Maturity of long-term debt and finance leases(700) (665)
Issuance of common stock, net of issuance costs14,929
 1,227
175
 190
Cash dividends paid(51,153) (49,101)(27,389) (25,615)
Other(1,509) (8,538)(2,406) (896)
Net cash used in financing activities(60,063) (63,359)(31,120) (97,986)
      
Net increase in cash and cash equivalents2,575
 19,161
9,023
 1,231
      
Cash and cash equivalents at beginning of period14,656
 16,172
9,896
 14,656
      
Cash and cash equivalents at end of period$17,231
 $35,333
$18,919
 $14,861
The Accompanying Notes are an Integral Part of These Statements.



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CONDENSED CONSOLIDATED STATEMENTS OF EQUITY
Avista Corporation
For the Three and SixThree Months Ended June 30March 31
Dollars in thousands
(Unaudited)
Three months ended June 30, Six months ended June 30,
2019 2018 2019 20182020 2019
Common Stock, Shares:          
Shares outstanding at beginning of period65,749,932
 65,668,477
 65,688,356
 65,494,333
67,176,996
 65,688,356
Shares issued361,385
 19,015
 422,961
 193,159
115,237
 61,576
Shares outstanding at end of period66,111,317
 65,687,492
 66,111,317
 65,687,492
67,292,233
 65,749,932
Common Stock, Amount:          
Balance at beginning of period$1,140,242
 $1,131,549
 $1,136,491
 $1,133,448
$1,210,741
 $1,136,491
Equity compensation expense2,043
 1,760
 6,495
 3,558
804
 4,452
Issuance of common stock, net of issuance costs14,739
 995
 14,929
 1,227
175
 190
Payment of minimum tax withholdings for share-based payment awards
 
 (891) (3,929)(2,408) (891)
Balance at end of period1,157,024
 1,134,304
 1,157,024
 1,134,304
1,209,312
 1,140,242
Accumulated Other Comprehensive Loss:          
Balance at beginning of period(7,706) (9,628) (7,866) (8,090)(10,259) (7,866)
Other comprehensive income161
 204
 321
 408
205
 160
Reclassification of excess income tax benefits
 
 
 (1,742)
Balance at end of period(7,545) (9,424) (7,545) (9,424)(10,054) (7,706)
Retained Earnings:          
Balance at beginning of period734,774
 636,468
 644,595
 604,470
738,802
 644,595
Net income attributable to Avista Corporation shareholders25,319
 25,577
 141,113
 80,467
48,424
 115,794
Cash dividends paid on common stock(25,538) (24,467) (51,153) (49,101)(27,389) (25,615)
Reclassification of excess income tax benefits
 
 
 1,742
Balance at end of period734,555
 637,578
 734,555
 637,578
759,837
 734,774
Total Avista Corporation shareholders’ equity1,884,034
 1,762,458
 1,884,034
 1,762,458
1,959,095
 1,867,310
Noncontrolling Interests:          
Balance at beginning of period912
 182
 825
 656

 825
Net income (loss) attributable to noncontrolling interests(303) 67
 (216) 133
Cash dividends paid to subsidiary noncontrolling interests
 
 
 (540)
Deconsolidation of noncontrolling interests related to sale of METALfx(609) 
 (609) 
Net income attributable to noncontrolling interests
 87
Balance at end of period
 249
 
 249

 912
Total equity$1,884,034
 $1,762,707
 $1,884,034
 $1,762,707
$1,959,095
 $1,868,222
Dividends declared per common share$0.3875
 $0.3725
 $0.7750
 $0.7450
$0.4050
 $0.3875
The Accompanying Notes are an Integral Part of These Statements.

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NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)
The accompanying condensed consolidated financial statements of Avista Corp. as of and for the interim periods ended June 30, 2019March 31, 2020 and June 30, 2018March 31, 2019 are unaudited; however, in the opinion of management, the statements reflect all adjustments necessary for a fair statement of the results for the interim periods. All such adjustments are of a normal recurring nature. The condensed consolidated financial statements have been prepared in accordance with GAAP for interim financial information and with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X. The Condensed Consolidated Statements of Income for the interim periods are not necessarily indicative of the results to be expected for the full year. These condensed consolidated financial statements do not contain the detail or footnote disclosure concerning accounting policies and other matters which would be included in full fiscal year consolidated financial statements; therefore, they should be read in conjunction with the Company's audited consolidated financial statements included in the Company's Annual Report on Form 10-K for the year ended December 31, 20182019 (20182019 Form 10-K).
NOTE 1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Nature of Business
Avista Corp. is primarily an electric and natural gas utility with certain other business ventures. Avista Utilities is an operating division of Avista Corp., comprising its regulated utility operations in the Pacific Northwest. Avista Utilities provides electric distribution and transmission, and natural gas distribution services in parts of eastern Washington and northern Idaho. Avista Utilities also provides natural gas distribution service in parts of northeastern and southwestern Oregon. Avista Utilities has electric generating facilities in Washington, Idaho, Oregon and Montana. Avista Utilities also supplies electricity to a small number of customers in Montana, most of whom are employees who operate the Company's Noxon Rapids generating facility.
AERC is a wholly-owned subsidiary of Avista Corp. The primary subsidiary of AERC is AEL&P, which comprises Avista Corp.'s regulated utility operations in Alaska.
Avista Capital, a wholly owned non-regulated subsidiary of Avista Corp., is the parent company of all of the subsidiary companies in the non-utility businesses, with the exception of AJT Mining Properties, Inc., which is a subsidiary of AERC. See Note 16 for business segment information. See Note 18 for discussion of the sale of METALfx, an unregulated subsidiary of the Company.
Basis of Reporting
The condensed consolidated financial statements include the assets, liabilities, revenues and expenses of the Company and its subsidiaries and other majority owned subsidiaries and variable interest entities for which the Company or its subsidiaries are the primary beneficiaries. Intercompany balances were eliminated in consolidation. The accompanying condensed consolidated financial statements include the Company’s proportionate share of utility plant and related operations resulting from its interests in jointly owned plants.
Derivative Assets and Liabilities
Derivatives are recorded as either assets or liabilities on the Condensed Consolidated Balance Sheets measured at estimated fair value.
The WUTC and the IPUC issued accounting orders authorizing Avista Corp. to offset energy commodity derivative assets or liabilities with a regulatory asset or liability. This accounting treatment is intended to defer the recognition of mark-to-market gains and losses on energy commodity transactions until the period of delivery. Realized benefits and costs result in adjustments to retail rates through PGAs, the ERM in Washington, the PCA mechanism in Idaho, and periodic general rate cases. The resulting regulatory assets associated with energy commodity derivative instruments have been concluded to be probable of recovery through future rates.
Substantially all forward contracts to purchase or sell power and natural gas are recorded as derivative assets or liabilities at estimated fair value with an offsetting regulatory asset or liability. Contracts that are not considered derivatives are accounted for on the accrual basis until they are settled or realized unless there is a decline in the fair value of the contract that is determined to be other-than-temporary.
For interest rate swap derivatives, Avista Corp. records all mark-to-market gains and losses in each accounting period as assets and liabilities, as well as offsetting regulatory assets and liabilities, such that there is no income statement impact. The interest rate swap derivatives are risk management tools similar to energy commodity derivatives. Upon settlement of interest rate swap derivatives, the cash payments made or received are recorded as a regulatory asset or liability isand are subsequently amortized as a component of interest expense over the termlife of the associated debt. The Company records an offset ofsettled interest rate swap derivative assets and liabilities with regulatory assets and liabilities, based on the prior practicederivatives are also included as a part of the commissions to provide recovery through theAvista Corp.'s cost of debt calculation for ratemaking process.purposes.

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The Company has multiple master netting agreements with a variety of entities that allow for cross-commodity netting of derivative agreements with the same counterparty (i.e. power derivatives can be netted with natural gas derivatives). In addition, some master netting agreements allow for the netting of commodity derivatives and interest rate swap derivatives for the same counterparty. The Company does not have any agreements which allow for cross-affiliate netting among multiple affiliated legal entities. The Company nets all derivative instruments when allowed by the agreement for presentation in the Condensed Consolidated Balance Sheets.
Fair Value Measurements
Fair value represents the price that would be received when selling an asset or paid to transfer a liability (an exit price) in an orderly transaction between market participants at the measurement date. Energy commodity derivative assets and liabilities, deferred compensation assets, as well as derivatives related to interest rate swaps and foreign currency exchange contracts, are reported at estimated fair value on the Condensed Consolidated Balance Sheets. See Note 11 for the Company’s fair value disclosures.
Contingencies
The Company has unresolved regulatory, legal and tax issues which have inherently uncertain outcomes. The Company accrues a loss contingency if it is probable that a liability has been incurred and the amount of the loss or impairment can be reasonably estimated. The Company also discloses loss contingencies that do not meet these conditions for accrual if there is a reasonable possibility that a material loss may be incurred. As of June 30, 2019, the Company has not recorded any significant amounts related to unresolved contingencies. See Note 15 for further discussion of the Company's commitments and contingencies.
COVID-19
In March 2020, the Company filed an application for authorization to defer certain incremental COVID-19 related costs with the OPUC. In April and May 2020, the Company made similar filings with the IPUC and the WUTC, respectively. In Alaska, a Senate Bill was signed into law that provides for deferral and recovery of incremental COVID-19 related costs subject to approval by the RCA. The recovery of any deferred costs would be determined in future rate making proceedings.
NOTE 2. NEW ACCOUNTING STANDARDS
ASU No. 2016-02, "Leases2016-12 "Financial Instruments - Credit Losses (Topic 842)"
ASU No. 2018-01, "Leases (Topic 842)326): Land Easement Practical Expedient for Transition to Topic 842"
ASU No. 2018-11, "Leases (Topic 842): Targeted Improvements"Measurement of Credit Losses on Financial Instruments"
On January 1, 2019,2020, the Company adopted ASU No. 2016-02,2016-13, which outlinesreplaces the incurred loss impairment methodology in previous GAAP with a model for entitiesmethodology that reflects expected credit losses, and requires consideration of a broader range of reasonable and supportable information to use in accounting for leases and supersedes previous lease accounting guidance, as well as several practical expedients in ASU Nos. 2018-01 and 2018-11.
inform credit loss estimates. The Company adopted ASU No. 2016-02 utilizing a modified retrospective adoption method withanalyzed its financial instruments within the "packagescope of three" and hindsight practical expedients offered by the standard. The "package of three" provides for an entity to not reassess at adoption whether any expired or existing contracts are deemed, for accounting purposes, to be or contain leases, the classification of any expired or existing leases, and any initial direct costs for any existing leases. As a result, the Company did not reassess existing or expired contracts under the new leasethis guidance, primarily trade receivables, and it did not reassess the classification of any existing leases. The Company used the benefit of hindsight in determining both term and impairments associated with any existing leases. Use of this practical expedient has resulted in lease terms that best represent management's expectations with respecthave a material impact to use of the underlying asset but did not result in recognition of any impairment.
The Company elected to adopt ASU No. 2018-01, which allows an entity to exclude from application of Topic 842 all easements executed prior to January 1, 2019. In addition, the Company elected to adopt the "comparatives under 840" practical expedient offered in ASU No. 2018-11, which allows an entity to apply the new lease standard at the adoption date, recognizing any necessary cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption and presenting comparative periods in the financial statements under ASC 840 (previous lease accounting guidance). Adoption of the standard did not result in a cumulative effect adjustment within the Company's financial statements.
As allowed by ASU No. 2016-02, the Company electedstatements and does not to apply the requirements of the standard to short-term leases, those leases with an initial term of 12 months or less. These leases are not recorded on the balance sheet and are immaterialrequire additional disclosure in these Notes to the financial statements.
Adoption of the standard impacted the Company's Condensed Consolidated Balance Sheet through recognition of right-of-use (ROU) assets and lease liabilities for the Company's operating leases. Accounting for finance leases (formerly capital leases) remained substantially unchanged. See Note 5 for further information on the Company's leases.
ASU No. 2018-02 “Income Statement-Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income”
In February 2018, the FASB issued ASU No. 2018-02, which amended the guidance for reporting comprehensive income. This ASU allows a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the enactment of the TCJA in December 2017. This ASU became effective for periods beginning after December 15, 2018 and early adoption was permitted. Upon adoption, the requirements of this ASU must be applied either in the period of

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adoption or retrospectively to each period (or periods) in which the effect of the change in the U.S. federal corporate income tax rate in the TCJA is recognized. The Company early adopted this standard effective January 1, 2018 and elected to apply the guidance during the period of adoption rather than apply the standard retrospectively. As a result, the Company reclassified $1.7 million in tax benefits from accumulated other comprehensive loss to retained earnings during the six months ended June 30, 2018.Financial Statements.
ASU 2018-13 "Fair Value Measurement (Topic 820)"
In August 2018, the FASB issued ASU No. 2018-13, which amends the fair value measurement disclosure requirements of ASC 820. The requirements of this ASU include additional disclosure regarding the range and weighted average used to develop significant unobservable inputs for Level 3 fair value estimates and the elimination of certain other previously required disclosures, such as the narrative description of the valuation process for Level 3 fair value measurements. This ASU isbecame effective for periods beginning after December 15, 2019on January 1, 2020 and early adoption is permitted. Entities have the option to early adopt the eliminated or modified disclosure requirements and delay the adoption of all the new disclosure requirementsuntil the effective date of the ASU. The Company is in the process of evaluating this standard; however, it has determined that it will not early adopt any portion of this standard as of June 30, 2019.ASU did not have a material impact on the Company's fair value disclosures. See Note 11 for the Company's fair value disclosures.
ASU No. 2018-14 "Compensation - Retirement Benefits - Defined Benefit Plans - General (Subtopic 715-20)"
In August 2018, the FASB issued ASU No. 2018-14, which amends ASC 715 to add, remove and/or clarify certain disclosure requirements related to defined benefit pension and other postretirement plans. The additional disclosure requirements are primarily narrative discussion of significant changes in the benefit obligations and plan assets. The removed disclosures are primarily information about accumulated other comprehensive income expected to be recognized over the next year and the effects of changes associated with assumed health care costs. This ASU is effective for periods beginning after December 15, 2021 and early adoption is permitted. The Company is in the process of evaluating this standard; however, it has determined that it will not early adopt this standard as of June 30, 2019March 31, 2020.

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NOTE 3. BALANCE SHEET COMPONENTS
Materials and Supplies, Fuel Stock and Stored Natural Gas
Inventories of materials and supplies, fuel stock and stored natural gas are recorded at average cost for our regulated operations and the lower of cost or market for our non-regulated operations and consisted of the following as of June 30, 2019March 31, 2020 and December 31, 20182019 (dollars in thousands):
June 30, December 31,March 31, December 31,
2019 20182020 2019
Materials and supplies$46,886
 $47,403
$49,007
 $47,402
Fuel stock6,332
 4,869
4,740
 4,875
Stored natural gas14,441
 11,609
2,934
 14,306
Total$67,659
 $63,881
$56,681
 $66,583

Other Current Assets
Other current assets consisted of the following as of June 30, 2019March 31, 2020 and December 31, 20182019 (dollars in thousands):
June 30, December 31,March 31, December 31,
2019 20182020 2019
Collateral posted for derivative instruments after netting with outstanding derivative liabilities$
 $26,809
$2,470
 $4,434
Prepayments24,515
 17,536
22,569
 19,652
Income taxes receivable
 11,047
Other6,084
 9,665
5,289
 5,009
Total$30,599
 $54,010
$30,328
 $40,142

Net Utility Property
Net utility property consisted of the following as of March 31, 2020 and December 31, 2019 (dollars in thousands):
 March 31, December 31,
 2020 2019
Utility plant in service$6,521,033
 $6,462,993
Construction work in progress189,827
 164,941
Total6,710,860
 6,627,934
Less: Accumulated depreciation and amortization1,868,542
 1,830,927
Total net utility property$4,842,318
 $4,797,007

Other Property and Investments-Net and Other Non-Current Assets
Other property and investments-net and other non-current assets consisted of the following as of March 31, 2020 and December 31, 2019 (dollars in thousands):
 March 31, December 31,
 2020 2019
Operating lease ROU assets$65,303
 $69,746
Finance lease ROU assets50,069
 50,980
Non-utility property26,511
 27,159
Equity investments51,467
 51,258
Investment in affiliated trust11,547
 11,547
Notes receivable14,970
 14,060
Deferred compensation assets8,670
 8,948
Other25,614
 23,394
Total$254,151
 $257,092


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Net Utility Property
Net utility property consisted of the following as of June 30, 2019 and December 31, 2018 (dollars in thousands):
 June 30, December 31,
 2019 2018
Utility plant in service$6,262,789
 $6,209,968
Construction work in progress191,845
 160,598
Total6,454,634
 6,370,566
Less: Accumulated depreciation and amortization1,769,980
 1,721,636
Total net utility property$4,684,654
 $4,648,930

Other Property and Investments-Net and Other Non-Current Assets
Other property and investments-net and other non-current assets consisted of the following as of June 30, 2019 and December 31, 2018 (dollars in thousands):
 June 30, December 31,
 2019 2018
Operating lease ROU assets$70,442
 $
Finance lease ROU assets52,800
 
Non-utility property28,438
 31,355
Equity investments36,921
 29,257
Investment in affiliated trust11,547
 11,547
Notes receivable11,376
 11,073
Deferred compensation assets8,557
 8,400
Other20,549
 23,065
Total$240,630
 $114,697

Other Current Liabilities
Other current liabilities consisted of the following as of June 30, 2019March 31, 2020 and December 31, 20182019 (dollars in thousands):
June 30, December 31,March 31, December 31,
2019 20182020 2019
Accrued taxes other than income taxes$35,502
 $36,858
$48,980
 $36,965
Employee paid time off accruals22,092
 20,992
24,084
 22,343
Accrued interest16,536
 16,704
31,033
 16,486
Current portion of pensions and other postretirement benefits11,175
 9,151
9,811
 8,826
Income taxes payable5,199
 298
Derivative liabilities9,274
 3,908
27,409
 10,928
Other current liabilities29,590
 32,745
27,770
 35,133
Total other current liabilities$124,169
 $120,358
$174,286
 $130,979

Other Non-Current Liabilities and Deferred Credits
Other non-current liabilities and deferred credits consisted of the following as of June 30, 2019March 31, 2020 and December 31, 20182019 (dollars in thousands):
June 30, December 31,March 31, December 31,
2019 20182020 2019
Operating lease liabilities$68,228
 $
$62,145
 $65,565
Finance lease liabilities53,150
 
51,016
 51,750
Deferred investment tax credits31,172
 29,725
30,588
 30,444
Asset retirement obligations18,595
 18,266
20,263
 20,338
Derivative liabilities27,198
 10,300
60,278
 19,685
Other13,058
 12,740
13,374
 13,407
Total$211,401
 $71,031
$237,664
 $201,189

Regulatory Assets and Liabilities
Regulatory assets and liabilities consisted of the following as of March 31, 2020 and December 31, 2019 (dollars in thousands):
 March 31, 2020 December 31, 2019
 Current Non-Current Current Non-Current
Regulatory Assets       
Energy commodity derivatives$78
 $
 $6,310
 $264
Decoupling surcharge10,927
 15,504
 12,098
 14,806
Pension and other postretirement benefit plans
 206,112
 
 208,754
Interest rate swaps
 246,566
 
 168,594
Deferred income taxes
 96,525
 
 95,752
Settlement with Coeur d'Alene Tribe
 41,005
 
 41,332
AFUDC above FERC allowed rate
 41,333
 
 40,749
Demand side management programs
 8,670
 
 12,170
Utility plant to be abandoned
 31,678
 
 31,291
Other regulatory assets2,052
 63,473
 3,443
 57,090
Total regulatory assets$13,057
 $750,866
 $21,851
 $670,802
        


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Regulatory Assets and Liabilities
Regulatory assets and liabilities consisted of the following as of June 30, 2019 and December 31, 2018 (dollars in thousands):
June 30, 2019 December 31, 2018March 31, 2020 December 31, 2019
Current Non-Current Current Non-Current
Regulatory Assets       
Energy commodity derivatives$25,125
 $10,764
 $41,428
 $16,866
Decoupling surcharge6,498
 16,167
 3,408
 17,501
Pension and other postretirement benefit plans
 221,454
 
 228,062
Interest rate swaps
 155,787
 
 133,854
Deferred income taxes
 95,217
 
 91,188
Settlement with Coeur d'Alene Tribe
 41,988
 
 42,643
Demand side management programs
 13,705
 
 19,674
Utility plant to be abandoned
 25,273
 
 24,334
Other regulatory assets7,162
 50,096
 3,716
 40,232
Total regulatory assets$38,785
 $630,451
 $48,552
 $614,354
       Current Non-Current Current Non-Current
Regulatory Liabilities              
Income tax related liabilities$23,079
 $418,039
 $27,997
 $425,613
$23,975
 $404,046
 $23,803
 $407,549
Deferred natural gas costs1,852
 
 40,713
 
5,449
 
 3,189
 
Deferral power costs6,612
 32,617
 25,072
 16,933
23,595
 20,716
 14,155
 23,544
Decoupling rebate437
 2,861
 6,782
 204
363
 5,972
 255
 2,398
Provision for rate refund (Washington remand case)8,490
 
 3,565
 
Utility plant retirement costs
 302,734
 
 297,379

 317,203
 
 312,403
Interest rate swaps
 17,659
 
 28,078

 16,136
 
 17,088
Other regulatory liabilities5,974
 15,745
 12,645
 12,494
4,464
 19,303
 6,748
 12,454
Total regulatory liabilities$37,954
 $789,655
 $113,209
 $780,701
$66,336
 $783,376
 $51,715
 $775,436

NOTE 4. REVENUE
ASC 606 defines the core principle of the revenue recognition model is that an entity should identify the various performance obligations in a contract, allocate the transaction price among the performance obligations and recognize revenue when (or as) the entity satisfies each performance obligation.
Utility Revenues
Revenue from Contracts with Customers
General
The majority of Avista Corp.’s revenue is from rate-regulated sales of electricity and natural gas to retail customers, which has two performance obligations, (1) having service available for a specified period (typically a month at a time) and (2) the delivery of energy to customers. The total energy price generally has a fixed component (basic charge) related to having service available and a usage-based component, related to the delivery and consumption of energy. The commodity is sold and/or delivered to and consumed by the customer simultaneously, and the provisions of the relevant utility commission authorization determine the charges the Company may bill the customer. Given that all revenue recognition criteria are met upon the delivery of energy to customers, revenue is recognized immediately at that time.
Revenues from contracts with customers are presented in the Condensed Consolidated Statements of Income in the line item "Utility revenues, exclusive of alternative revenue programs."
Non-Derivative Wholesale Contracts
The Company has certain wholesale contracts which are not accounted for as derivatives and, accordingly, are within the scope of ASC 606 and considered revenue from contracts with customers. Revenue is recognized as energy is delivered to the customer or the service is available for a specified period of time, consistent with the discussion of rate-regulated sales above.

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Alternative Revenue Programs (Decoupling)
ASC 606 retained existing GAAP associated with alternative revenue programs, which specified that alternative revenue programs are contracts between an entity and a regulator of utilities, not a contract between an entity and a customer. GAAP requires that an entity present revenue arising from alternative revenue programs separately from revenues arising from contracts with customers on the face of the Condensed Consolidated Statements of Income. The Company's decoupling mechanisms (also known as a FCA in Idaho) qualify as alternative revenue programs. Decoupling revenue deferrals are recognized in the Condensed Consolidated Statements of Income during the period they occur (i.e. during the period of revenue shortfall or excess due to fluctuations in customer usage), subject to certain limitations, and a regulatory asset or liability is established that will be surcharged or rebated to customers in future periods. GAAP requires that for any alternative revenue program, like decoupling, the revenue must be expected to be collected from customers within 24 months of the deferral to qualify for recognition in the current period Condensed Consolidated Statement of Income. Any amounts included in the Company's decoupling program that are not expected to be collected from customers within 24 months are not recorded in the financial statements until the period in which revenue recognition criteria are met. The amounts expected to be collected from customers within 24 months represents an estimate that must be made by the Company on an ongoing basis due to it being based on the volumes of electric and natural gas sold to customers on a go-forward basis.

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Derivative Revenue
Most wholesale electric and natural gas transactions (including both physical and financial transactions), and the sale of fuel are considered derivatives, which are specifically scoped out of ASC 606. As such, these revenues are disclosed separately from revenue from contracts with customers. Revenue is recognized for these items upon the settlement/expiration of the derivative contract. Derivative revenue includes those transactions that are entered into and settled within the same month.
Other Utility Revenue
Other utility revenue includes rent, revenues from the lineman training school, sales of materials, late fees and other charges that do not represent contracts with customers. Other utility revenue also includes the provision for earnings sharing and the deferral and amortization of refunds to customers associated with the TCJA. This revenue is scoped out of ASC 606, as this revenue does not represent items where a customer is a party that has contracted with the Company to obtain goods or services that are an output of the Company’s ordinary activities in exchange for consideration. As such, these revenues are presented separately from revenue from contracts with customers.
Other Considerations for Utility Revenues
Gross Versus Net Presentation
Revenues and resource costs from Avista Utilities’ settled energy contracts that are “booked out” (not physically delivered) are reported on a net basis as part of derivative revenues.
Utility-related taxes collected from customers (primarily state excise taxes and city utility taxes) are taxes that are imposed on Avista Utilities as opposed to being imposed on its customers; therefore, Avista Utilities is the taxpayer and records these transactions on a gross basis in revenue from contracts with customers and operating expense (taxes other than income taxes). The utility-related taxes collected from customers at AEL&P are imposed on the customers rather than AEL&P; therefore, the customers are the taxpayers and AEL&P is acting as their agent. As such, these transactions at AEL&P are presented on a net basis within revenue from contracts with customers.
Utility-related taxes that were included in revenue from contracts with customers were as follows for the three and six months ended June 30March 31 (dollars in thousands):
 Three months ended June 30, Six months ended June 30,
 2019 2018 2019 2018
Utility-related taxes$12,688
 $12,986
 $31,777
 $32,153
 2020 2019
Utility-related taxes$18,700
 $19,089

Non-Utility Revenues
Revenue from Contracts with Customers
Non-utility revenuesrevenue from contracts with customers are primarilyis derived from the operations of METALfx (through the date ofcontracts with one performance obligation. Prior to its sale in April 2019 see(See Note 18 for further discussion). The contracts associated withdiscussion on the sale of METALfx), METALfx havehad one performance obligation, the delivery of a product, and revenues arewere recognized when the risk of loss transferstransferred to the customer, which occursoccurred when products arewere shipped.

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service to the customer.
Significant Judgments and Unsatisfied Performance Obligations
The only significant judgments involving revenue recognition are estimates surrounding unbilled revenue and receivables from contracts with customers and estimates surrounding the amount of decoupling revenues that will be collected from customers within 24 months (discussed above).
The Company has certain capacity arrangements, where the Company has a contractual obligation to provide either electric or natural gas capacity to its customers for a fixed fee. Most of these arrangements are paid for in arrears by the customers and do not result in deferred revenue and only result in receivables from the customers. The Company does have one capacity agreement where the customer makes payments throughout the year and depending on the timing of the customer payments, it can result in an immaterial amount of deferred revenue or a receivable from the customer. As of June 30, 2019,March 31, 2020, the Company estimates it had unsatisfied capacity performance obligations of $7.9$4.7 million, which will be recognized as revenue in future periods as the capacity is provided to the customers. These performance obligations are not reflected in the financial statements, as the Company has not received payment for these services.

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Disaggregation of Total Operating Revenue
The following table disaggregates total operating revenue by segment and source for the three and six months ended June 30March 31 (dollars in thousands):
Three months ended June 30, Six months ended June 30,
2019 2018 2019 20182020 2019
Avista Utilities          
Revenue from contracts with customers$231,605
 $239,113
 $585,907
 $593,275
$351,628
 $354,301
Derivative revenues42,128
 56,357
 66,255
 114,749
31,075
 24,127
Alternative revenue programs9,725
 3,570
 5,067
 (2,369)(4,413) (4,658)
Deferrals and amortizations for rate refunds to customers2,512
 982
 4,647
 (18,840)(2,606) 2,135
Other utility revenues3,838
 2,200
 5,634
 4,161
1,521
 1,797
Total Avista Utilities289,808
 302,222
 667,510
 690,976
377,205
 377,702
AEL&P          
Revenue from contracts with customers8,620
 10,759
 19,356
 25,409
12,126
 10,736
Deferrals and amortizations for rate refunds to customers(47) (427) (95) (1,549)(48) (48)
Other utility revenues170
 150
 363
 285
124
 193
Total AEL&P8,743
 10,482
 19,624
 24,145
12,202
 10,881
Other          
Revenue from contracts with customers2,024
 6,324
 9,671
 13,053
514
 7,647
Other revenues237
 270
 488
 485
309
 251
Total other2,261
 6,594
 10,159
 13,538
823
 7,898
Total operating revenues$300,812
 $319,298
 $697,293
 $728,659
$390,230
 $396,481
Utility Revenue from Contracts with Customers by Type and Service
The following table disaggregates revenue from contracts with customers associated with the Company's electric operations for the three months ended March 31 (dollars in thousands):
 2020 2019
 Avista Utilities AEL&P Total Utility Avista Utilities AEL&P Total Utility
ELECTRIC OPERATIONS           
Revenue from contracts with customers           
Residential$107,977
 $5,866
 $113,843
 $115,392
 $5,852
 $121,244
Commercial and governmental78,849
 6,199
 85,048
 79,245
 4,821
 84,066
Industrial24,711
 
 24,711
 25,248
 
 25,248
Public street and highway lighting1,783
 61
 1,844
 1,903
 63
 1,966
Total retail revenue213,320
 12,126
 225,446
 221,788
 10,736
 232,524
Transmission3,774
 
 3,774
 5,152
 
 5,152
Other revenue from contracts with customers5,289
 
 5,289
 8,194
 
 8,194
Total revenue from contracts with customers$222,383
 $12,126
 $234,509
 $235,134
 $10,736
 $245,870


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Utility Revenue from Contracts with Customers by Type and Service
The following table disaggregates revenue from contracts with customers associated with the Company's utilitynatural gas operations for the three and six months ended June 30March 31 (dollars in thousands):
 2019 2018
 Avista Utilities AEL&P Total Utility Avista Utilities AEL&P Total Utility
Three months ended June 30:           
ELECTRIC OPERATIONS           
Revenue from contracts with customers           
Residential$72,886
 $3,724
 $76,610
 $74,818
 $4,155
 $78,973
Commercial and governmental76,375
 4,837
 81,212
 76,462
 6,541
 83,003
Industrial26,245
 
 26,245
 27,985
 
 27,985
Public street and highway lighting1,897
 59
 1,956
 1,899
 63
 1,962
Total retail revenue177,403
 8,620
 186,023
 181,164
 10,759
 191,923
Transmission4,250
 
 4,250
 4,171
 
 4,171
Other revenue from contracts with customers4,379
 
 4,379
 3,919
 
 3,919
Total revenue from contracts with customers$186,032
 $8,620
 $194,652
 $189,254
 $10,759
 $200,013
            
NATURAL GAS OPERATIONS           
Revenue from contracts with customers           
Residential$27,937
 $
 $27,937
 $30,767
 $
 $30,767
Commercial13,369
 
 13,369
 14,668
 
 14,668
Industrial and interruptible1,103
 
 1,103
 1,078
 
 1,078
Total retail revenue42,409
 
 42,409
 46,513
 
 46,513
Transportation2,039
 
 2,039
 2,221
 
 2,221
Other revenue from contracts with customers1,125
 
 1,125
 1,125
 
 1,125
Total revenue from contracts with customers$45,573
 $
 $45,573
 $49,859
 $
 $49,859
Six months ended June 30:           
ELECTRIC OPERATIONS           
Residential$188,279
 $9,576
 $197,855
 $189,571
 $10,693
 $200,264
Commercial and governmental155,621
 9,658
 165,279
 155,371
 14,585
 169,956
Industrial51,493
 
 51,493
 53,104
 
 53,104
Public street and highway lighting3,800
 122
 3,922
 3,758
 131
 3,889
Total retail revenue399,193
 19,356
 418,549
 401,804
 25,409
 427,213
Transmission9,402
 
 9,402
 8,001
 
 8,001
Other revenue from contracts with customers12,573
 
 12,573
 10,210
 
 10,210
Total electric revenue from contracts with customers$421,168
 $19,356
 $440,524
 $420,015
 $25,409
 $445,424
            


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2019 20182020 2019
Avista Utilities AEL&P Total Utility Avista Utilities AEL&P Total UtilityAvista Utilities Avista Utilities
NATURAL GAS OPERATIONS              
Revenue from contracts with customers   
Residential$105,272
 $
 $105,272
 $111,421
 $
 $111,421
$84,173
 $77,336
Commercial49,964
 
 49,964
 52,040
 
 52,040
39,401
 36,595
Industrial and interruptible2,730
 
 2,730
 2,761
 
 2,761
2,194
 1,627
Total retail revenue157,966
 
 157,966
 166,222
 
 166,222
125,768
 115,558
Transportation4,523
 
 4,523
 4,788
 
 4,788
2,352
 2,484
Other revenue from contracts with customers2,250
 
 2,250
 2,250
 
 2,250
1,125
 1,125
Total natural gas revenue from contracts with customers$164,739
 $
 $164,739
 $173,260
 $
 $173,260
Total revenue from contracts with customers$129,245
 $119,167

NOTE 5. LEASES
ASC 842, which outlines a model for entities to use in accounting for leases and supersedes previous lease accounting guidance, became effective on January 1, 2019. The core principle of the model is that an entity should recognize the ROU assets and liabilities that arise from leases on the balance sheet and depreciate or amortize the asset and liability over the term of the lease, as well as provide disclosure to enable users of the condensed consolidated financial statements to assess the amount, timing, and uncertainty of cash flows arising from leases.
Significant Judgments and Assumptions
The Company determines if an arrangement is a lease, as well as its classification, at its inception.
ROU assets represent the Company's right to use an underlying asset for the lease term, and lease liabilities represent the Company's obligation to make lease payments arising from the lease. Operating and finance lease ROU assets and lease liabilities are recognized at the commencement date of the agreement based on the present value of lease payments over the lease term. As most of the Company's leases do not provide an implicit rate, the Company uses its incremental borrowing rate based on the information available at the commencement date to determine the present value of lease payments. The implicit rate is used when it is readily determinable. The operating and finance lease ROU assets also include any lease payments made and exclude lease incentives, if any, that accrue to the benefit of the lessee.
Lease terms may include options to extend or terminate the lease when it is reasonably certain that the Company will exercise that option. Lease expense for lease payments is recognized on a straight-line basis over the lease term. Any difference between lease expense and cash paid for leased assets is recognized as a regulatory asset or regulatory liability.
Description of Leases
The Company has operating leases for land associated with its utility operations, as well as communication sites which support network and radio communications within its service territory. The Company's leases have remaining terms of 1 to 74 years. Most of the Company's leases include options to extend the lease term for periods of 5 to 50 years. Options are exercised at the Company's discretion.
The Company has an operating lease with the state of Montana associated with submerged land around the Company's hydroelectric facilities in the Clark Fork River basin, which expires in 2046. The terms of this lease are subject to renegotiation, depending on the outcome of ongoing litigation between Montana and NorthWestern Energy. In addition, the state of Montana and Avista Corp. are engaged in litigation regarding the lease terms. As such, amounts recorded for this lease are uncertain and amounts may change in the future depending on the outcome of the ongoing litigation.
Through its wholly-owned subsidiary, AEL&P, the Company has a PPA which is treated as a finance lease for accounting purposes related to the Snettisham Hydroelectric Project, which expires in 2034. For ratemaking purposes, this lease is treated as an operating lease with a constant level of annual rental expense (straight line rent expense). Because of this regulatory treatment, any difference between the operating lease expense for ratemaking purposes and the expenses recognized under finance lease treatment (interest and amortization of the finance lease ROU asset) is recorded as a regulatory asset and amortized during the later years of the lease when the finance lease expense is less than the operating lease expense included in base rates. In 2018 and prior years, the total cost associated with the Snettisham PPA was included in resource costs. Due to the adoption of the new lease standard, the amortization of the ROU asset is now included in depreciation and amortization and the interest associated with the lease liability is now included in interest expense on the Condensed Consolidated Statement of Income.

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Certain of the Company's lease agreements include rental payments which are periodically adjusted over the term of the agreement based on the consumer price index. The Company's lease agreements do not include any material residual value guarantees or material restrictive covenants.
Avista Corp. does not record leases with a term of 12 months or less in the Condensed Consolidated Balance Sheet. Total short-term lease costs for the three and six months ended June 30, 2019 are immaterial. 
Leases that Have Not Yet Commenced
In June 2018, the Company finalized a lease agreement for office space in Spokane, Washington. The lease period is expected to commence in April 2020, once construction of the building is complete. The lease is an operating lease for a term of 12 years and will result in annual rent expense of approximately $1.1 million, which will be reflected in other operating expenses. In addition to base rent expense, the Company is expected to share in a portion of the annual operating expenses of the building.
In March 2019, the Company signed a PPA with Clearway Energy Group (Clearway) to purchase all of the power generated from the Rattlesnake Flat Wind project in Adams County, Washington. The facility has a nameplate capacity of 144 MW and is expected to generate approximately 50 aMW. During negotiations with Clearway, Avista Corp. was involved in the selection of the preferred generation facility type. The PPA is a 20-year agreement with deliveries expected to begin in 2020. The PPA provides Avista Corp. with additional renewable energy, capacity and environmental attributes. Avista Corp. expects to recover the cost of the power purchased through its retail rates. This PPA is considered a lease under ASC 842; however, all of the payments are variable payments based on whether power is generated from the facility. Since all the payments are variable, the Company will not record a lease liability for the agreement, but the expense will be included in resource costs when it becomes operational in 2020.
The components of lease expense were as follows for the three and six months ended June 30, 2019 (dollars in thousands):
 Three months ended June 30, 2019 Six months ended June 30, 2019
Operating lease cost:   
Fixed lease cost (Other operating expenses)$1,106
 $2,209
Variable lease cost (Other operating expenses)244
 487
Total operating lease cost$1,350
 $2,696
    
Finance lease cost:   
Amortization of ROU asset (Depreciation and amortization)$910
 $1,820
Interest on lease liabilities (Interest expense)699
 1,398
Total finance lease cost$1,609
 $3,218

Supplemental cash flow information related to leases was as follows for the six months ended June 30 (dollars in thousands):
 2019
Cash paid for amounts included in the measurement of lease liabilities: 
Operating cash outflows: 
Operating lease payments$4,197
Interest on finance lease1,398
Total operating cash outflows$5,595
  
Finance cash outflows: 
Principal payments on finance lease$1,330


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Supplemental balance sheet information related to leases was as follows for June 30, 2019 (dollars in thousands):
 June 30,
 2019
Operating Leases 
Operating lease ROU assets (Other property and investments-net and other non-current assets)$70,442
  
Other current liabilities$4,123
Other non-current liabilities and deferred credits68,228
Total operating lease liabilities$72,351
  
Finance Leases 
Finance lease ROU assets (Other property and investments-net and other non-current assets) (a)$52,800
  
Other current liabilities (b)$2,730
Other non-current liabilities and deferred credits (b)53,150
Total finance lease liabilities$55,880
  
Weighted Average Remaining Lease Term 
Operating leases27.01 years
Finance leases8.39 years
  
Weighted Average Discount Rate 
Operating leases3.82%
Finance leases4.88%
(a)At December 31, 2018, the finance lease ROU assets were included in "Net utility property" on the Condensed Consolidated Balance Sheet. Due to the adoption of ASC 842 on January 1, 2019, the Company has reclassified these amounts to "Other property and investments-net and other non-current assets" on the Condensed Consolidated Balance Sheet such that their presentation as of June 30, 2019 is consistent with operating leases.
(b)At December 31, 2018, the finance lease liabilities were included in "Current portion of long-term debt" and "Long-term debt and capital leases" on the Condensed Consolidated Balance Sheet. Due to the adoption of ASC 842 on January 1, 2019, the Company has reclassified these amounts to "Other current liabilities" and "Other non-current liabilities and deferred credits" on the Condensed Consolidated Balance Sheet such that their presentation as of June 30, 2019 is consistent with operating leases.
Maturities of lease liabilities (including principal and interest) were as follows as of June 30, 2019 (dollars in thousands):
 Operating Leases Finance Leases
Remainder 2019$4,170
 $2,726
20204,364
 5,462
20214,367
 5,457
20224,375
 5,460
20234,391
 5,456
Thereafter95,939
 54,574
Total lease payments$117,606
 $79,135
Less: imputed interest(45,255) (23,255)
Total$72,351
 $55,880


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Future minimum lease payments (including principal and interest) under Topic 840 as of December 31, 2018 (dollars in thousands):
 Operating Leases Finance Leases
2019$4,995
 $5,455
20204,876
 5,462
20214,859
 5,457
20224,782
 5,460
20234,780
 5,456
Thereafter102,389
 54,574
Total lease payments$126,681
 $81,864
Less: imputed interest
 (24,654)
Total$126,681
 $57,210

NOTE 6.5. DERIVATIVES AND RISK MANAGEMENT
Energy Commodity Derivatives
Avista Corp. is exposed to market risks relating to changes in electricity and natural gas commodity prices and certain other fuel prices. Market risk is, in general, the risk of fluctuation in the market price of the commodity being traded and is influenced primarily by supply and demand. Market risk includes the fluctuation in the market price of associated derivative commodity instruments. Avista Corp. utilizes derivative instruments, such as forwards, futures, swap derivatives and options, in order to manage the various risks relating to these commodity price exposures. Avista Corp. has an energy resources risk policy and control procedures to manage these risks.
As part of Avista Corp.'s resource procurement and management operations in the electric business, Avista Corp. engages in an ongoing process of resource optimization, which involves the economic selection from available energy resources to serve Avista Corp.'s load obligations and the use of these resources to capture available economic value through wholesale market transactions. These include sales and purchases of electric capacity and energy, fuel for electric generation, and derivative contracts related to capacity, energy and fuel. Such transactions are part of the process of matching resources with load obligations and hedging a portion of the related financial risks. These transactions range from terms of intra-hour up to multiple years.
As part of its resource procurement and management of its natural gas business, Avista Corp. makes continuing projections of its natural gas loads and assesses available natural gas resources including natural gas storage availability. Natural gas resource planning typically includes peak requirements, low and average monthly requirements and delivery constraints from natural gas supply locations to Avista Corp.’s distribution system. However, daily variations in natural gas demand can be significantly different than monthly demand projections. On the basis of these projections, Avista Corp. plans and executes a series of transactions to hedge a portion of its projected natural gas requirements through forward market transactions and derivative instruments. These transactions may extend as much as fourthree natural gas operating years (November through October) into the future. Avista Corp. also leaves a significant portion of its natural gas supply requirements unhedged for purchase in short-term and spot markets.
Avista Corp. plans for sufficient natural gas delivery capacity to serve its retail customers for a theoretical peak day event. Avista Corp. generally has more pipeline and storage capacity than what is needed during periods other than a peak-day. Avista Corp. optimizes its natural gas resources by using market opportunities to generate economic value that helps mitigate fixed costs. Avista Corp. also optimizes its natural gas storage capacity by purchasing and storing natural gas when prices are traditionally lower, typically in the summer, and withdrawing during higher priced months, typically during the winter. However, if market conditions and prices indicate that Avista Corp. should buy or sell natural gas at other times during the year, Avista Corp. engages in optimization transactions to capture value in the marketplace. Natural gas optimization activities include, but are not limited to, wholesale market sales of surplus natural gas supplies, purchases and sales of natural gas to optimize use of pipeline and storage capacity, and participation in the transportation capacity release market.

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The following table presents the underlying energy commodity derivative volumes as of June 30,March 31, 2020 that are expected to be delivered in each respective year (in thousands of MWhs and mmBTUs):
 Purchases Sales
 Electric Derivatives Gas Derivatives Electric Derivatives Gas Derivatives
Year
Physical (1)
MWh
 
Financial (1)
MWh
 
Physical (1)
mmBTUs
 
Financial (1)
mmBTUs
 Physical (1)
MWh
 Financial (1)
MWh
 Physical (1)
mmBTUs
 Financial (1)
mmBTUs
Remainder 20203
 395
 10,232
 61,330
 366
 1,491
 871
 27,035
2021
 123
 305
 32,120
 
 246
 1,490
 21,700
2022
 
 450
 7,820
 
 
 
 2,700
As of March 31, 2020, there are no expected deliveries of energy commodity derivatives after 2022.
The following table presents the underlying energy commodity derivative volumes as of December 31, 2019 that are expected to be delivered in each respective year (in thousands of MWhs and mmBTUs):
Purchases SalesPurchases Sales
Electric Derivatives Gas Derivatives Electric Derivatives Gas DerivativesElectric Derivatives Gas Derivatives Electric Derivatives Gas Derivatives
Year
Physical (1)
MWh
 
Financial (1)
MWh
 
Physical (1)
mmBTUs
 
Financial (1)
mmBTUs
 Physical (1)
MWh
 Financial (1)
MWh
 Physical (1)
mmBTUs
 Financial (1)
mmBTUs
Physical (1)
MWh
 Financial (1)
MWh
 Physical (1)
mmBTUs
 Financial (1)
mmBTUs
 Physical (1)
MWh
 Financial (1)
MWh
 Physical (1)
mmBTUs
 Financial (1)
mmBTUs
Remainder 20191
 559
 5,378
 61,385
 82
 1,330
 481
 26,150
2020
 
 1,138
 60,253
 123
 1,055
 1,430
 23,683
2
 442
 9,813
 78,803
 133
 1,724
 2,984
 37,848
2021
 
 
 17,640
 
 246
 1,049
 8,575

 
 153
 25,523
 
 246
 1,040
 13,108
2022
 
 
 1,350
 
 
 
 

 
 225
 4,725
 
 
 
 675
2023
 
 
 
 
 
 
 
Thereafter
 
 
 
 
 
 
 
 
The following table presents the underlying energy commodity derivative volumes asAs of December 31, 2018 that2019, there are no expected to be delivered in each respective year (in thousandsdeliveries of MWhs and mmBTUs):
 Purchases Sales
 Electric Derivatives Gas Derivatives Electric Derivatives Gas Derivatives
YearPhysical (1)
MWh
 Financial (1)
MWh
 Physical (1)
mmBTUs
 Financial (1)
mmBTUs
 Physical (1)
MWh
 Financial (1)
MWh
 Physical (1)
mmBTUs
 Financial (1)
mmBTUs
2019206
 941
 10,732
 101,293
 197
 2,790
 2,909
 54,418
2020
 
 1,138
 47,225
 123
 959
 1,430
 14,625
2021
 
 
 9,670
 
 
 1,049
 4,100
2022
 
 
 
 
 
 
 
2023
 
 
 
 
 
 
 
Thereafter
 
 
 
 
 
 
 
energy commodity derivatives after 2022.
(1)Physical transactions represent commodity transactions in which Avista Corp. will take or make delivery of either electricity or natural gas; financial transactions represent derivative instruments with delivery of cash in the amount of the benefit or cost but with no physical delivery of the commodity, such as futures, swap derivatives, options, or forward contracts.
The electric and natural gas derivative contracts above will be included in either power supply costs or natural gas supply costs during the period they are scheduled to be delivered and will be included in the various deferral and recovery mechanisms (ERM, PCA and PGAs), or in the general rate case process, and are expected to be collected through retail rates from customers.
Foreign Currency Exchange Derivatives
A significant portion of Avista Corp.’s natural gas supply (including fuel for power generation) is obtained from Canadian sources. Most of those transactions are executed in U.S. dollars, which avoids foreign currency risk. A portion of Avista Corp.’s short-term natural gas transactions and long-term Canadian transportation contracts are committed based on Canadian currency prices andprices. The short-term natural gas transactions are settled within 60 days with U.S. dollars. Avista Corp. hedges a portion of the foreign currency risk by purchasing Canadian currency exchange derivatives when such commodity transactions are initiated. The foreign currency exchange derivatives and the unhedged foreign currency risk have not had a material effect on Avista Corp.’s financial condition, results of operations or cash flows and these differences in cost related to currency fluctuations are included with natural gas supply costs for ratemaking.
The following table summarizes the foreign currency exchange derivatives that Avista Corp. has outstanding as of June 30, 2019March 31, 2020 and December 31, 20182019 (dollars in thousands):
June 30, December 31,March 31, December 31,
2019 20182020 2019
Number of contracts27
 31
23
 20
Notional amount (in United States dollars)$2,780
 $4,018
$5,219
 $5,932
Notional amount (in Canadian dollars)3,680
 5,386
7,247
 7,828


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Interest Rate Swap Derivatives
Avista Corp. is affected by fluctuating interest rates related to a portion of its existing debt, and future borrowing requirements. Avista Corp. hedges a portion of its interest rate risk with financial derivative instruments, which may include interest rate swap

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derivatives and U.S. Treasury lock agreements. These interest rate swap derivatives and U.S. Treasury lock agreements are considered economic hedges against fluctuations in future cash flows associated with anticipated debt issuances.
The following table summarizes the unsettled interest rate swap derivatives that Avista Corp. has outstanding as of June 30, 2019March 31, 2020 and December 31, 20182019 (dollars in thousands):
Balance Sheet Date Number of Contracts Notional Amount Mandatory Cash Settlement Date
June 30, 2019 6 $70,000
 2019
  6 60,000
 2020
  3 35,000
 2021
  9 100,000
 2022
December 31, 2018 6 $70,000
 2019
  6 60,000
 2020
  2 25,000
 2021
  7 80,000
 2022
Balance Sheet Date Number of Contracts Notional Amount Mandatory Cash Settlement Date
March 31, 2020
 7 $70,000
 2020
  4 45,000
 2021
  11 120,000
 2022
  1 10,000
 2023
December 31, 2019 7 70,000
 2020
  3 35,000
 2021
  10 110,000
 2022

Upon settlement of interest rate swap derivatives, the cash payments made or received are recorded as a regulatory asset or liability and are subsequently amortized as a component of interest expense over the life of the associated debt. The settled interest rate swap derivatives are also included as a part of Avista Corp.'s cost of debt calculation for ratemaking purposes.
The fair value of outstanding interest rate swap derivatives can vary significantly from period to period depending on the total notional amount of swap derivatives outstanding and fluctuations in market interest rates compared to the interest rates fixed by the swaps. Avista Corp. is required to make cash payments to settle the interest rate swap derivatives when the fixed rates are higher than prevailing market rates at the date of settlement. Conversely, Avista Corp. receives cash to settle its interest rate swap derivatives when prevailing market rates at the time of settlement exceed the fixed swap rates.
Summary of Outstanding Derivative Instruments
The amounts recorded on the Condensed Consolidated Balance Sheet as of June 30, 2019March 31, 2020 and December 31, 20182019 reflect the offsetting of derivative assets and liabilities where a legal right of offset exists.
The following table presents the fair values and locations of derivative instruments recorded on the Condensed Consolidated Balance Sheet as of June 30, 2019March 31, 2020 (in thousands):
 Fair Value Fair Value
Derivative and Balance Sheet Location 
Gross
Asset
 
Gross
Liability
 
Collateral
Netted
 
Net Asset
(Liability)
on Balance
Sheet
 
Gross
Asset
 
Gross
Liability
 
Collateral
Netted
 
Net Asset
(Liability)
on Balance
Sheet
Foreign currency exchange derivatives                
Other current assets $33
 $
 $
 $33
Other current liabilities $36
 $(103) $
 $(67)
Interest rate swap derivatives                
Other current assets 771
 (338) 
 433
Other current liabilities 
 (4,771) 
 (4,771) 
 (32,967) 12,967
 (20,000)
Other non-current liabilities and deferred credits 631
 (27,309) 5,030
 (21,648) 
 (79,271) 14,123
 (65,148)
Energy commodity derivatives                
Other current assets 582
 (247) 
 335
 28,964
 (26,503) (695) 1,766
Other property and investments-net and other non-current assets 6,072
 (3,626) 
 2,446
Other current liabilities 26,541
 (52,004) 20,960
 (4,503) 51
 (2,590) 
 (2,539)
Other non-current liabilities and deferred credits 3,996
 (14,760) 5,214
 (5,550) 
 (24) 
 (24)
Total derivative instruments recorded on the balance sheet $32,554
 $(99,429) $31,204
 $(35,671) $35,123
 $(145,084) $26,395
 $(83,566)

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The following table presents the fair values and locations of derivative instruments recorded on the Condensed Consolidated Balance Sheet as of December 31, 20182019 (in thousands):
 Fair Value Fair Value
Derivative and Balance Sheet Location 
Gross
Asset
 
Gross
Liability
 Collateral
Netted
 Net Asset
(Liability)
on Balance
Sheet
 
Gross
Asset
 
Gross
Liability
 Collateral
Netted
 Net Asset
(Liability)
on Balance
Sheet
Foreign currency exchange derivatives                
Other current liabilities $
 $(45) $
 $(45)
Other current assets $97
 $
 $
 $97
Interest rate swap derivatives                
Other current assets 5,283
 
 
 5,283
 589
 
 
 589
Other property and investments-net and other non-current assets 5,283
 (440) 
 4,843
Other current liabilities 238
 (9,379) 1,316
 (7,825)
Other non-current liabilities and deferred credits 
 (7,391) 530
 (6,861) 725
 (24,677) 5,454
 (18,498)
Energy commodity derivatives                
Other current assets 400
 (130) 
 270
 416
 (245) 
 171
Other property and investments-net and other non-current assets 6,369
 (5,446) 
 923
Other current liabilities 31,457
 (73,155) 37,790
 (3,908) 34,760
 (41,241) 3,378
 (3,103)
Other non-current liabilities and deferred credits 4,426
 (21,292) 13,427
 (3,439) 28
 (1,215) 
 (1,187)
Total derivative instruments recorded on the balance sheet $46,849
 $(102,453) $51,747
 $(3,857) $43,222
 $(82,203) $10,148
 $(28,833)

Exposure to Demands for Collateral
Avista Corp.'s derivative contracts often require collateral (in the form of cash or letters of credit) or other credit enhancements, or reductions or terminations of a portion of the contract through cash settlement. In the event of a downgrade in Avista Corp.'s credit ratings or changes in market prices, additional collateral may be required. In periods of price volatility, the level of exposure can change significantly. As a result, sudden and significant demands may be made against Avista Corp.'s credit facilities and cash. Avista Corp. actively monitors the exposure to possible collateral calls and takes steps to mitigate capital requirements.
The following table presents Avista Corp.'s collateral outstanding related to its derivative instruments as of June 30, 2019March 31, 2020 and December 31, 20182019 (in thousands):
June 30, December 31,March 31, December 31,
2019 20182020 2019
Energy commodity derivatives      
Cash collateral posted$26,174
 $78,025
$1,775
 $7,812
Letters of credit outstanding14,600
 6,500
25,000
 17,400
Balance sheet offsetting (cash collateral against net derivative positions)26,174
 51,217
(695) 3,378
      
Interest rate swap derivatives      
Cash collateral posted5,030
 530
27,090
 6,770
Letters of credit outstanding3,910
 
Balance sheet offsetting (cash collateral against net derivative positions)5,030
 530
27,090
 6,770
Certain of Avista Corp.’s derivative instruments contain provisions that require Avista Corp. to maintain an "investment grade" credit rating from the major credit rating agencies. If Avista Corp.’s credit ratings were to fall below "investment grade," it would be in violation of these provisions, and the counterparties to the derivative instruments could request immediate payment or demand immediate and ongoing collateralization on derivative instruments in net liability positions.

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The following table presents the aggregate fair value of all derivative instruments with credit-risk-related contingent features that are in a liability position and the amount of additional collateral Avista Corp. could be required to post as of June 30, 2019March 31, 2020 and December 31, 20182019 (in thousands):
June 30, December 31,March 31, December 31,
2019 20182020 2019
Energy commodity derivatives      
Liabilities with credit-risk-related contingent features$1,564
 $2,193
$1
 $814
Additional collateral to post1,563
 2,193
1
 814
      
Interest rate swap derivatives      
Liabilities with credit-risk-related contingent features32,418
 7,831
112,238
 34,056
Additional collateral to post25,986
 6,579
81,280
 26,912

NOTE 7.6. PENSION PLANS AND OTHER POSTRETIREMENT BENEFIT PLANS
Avista Utilities
Avista Utilities’ maintained the same pension and other postretirement plans during the sixthree months ended June 30, 2019March 31, 2020 as those described as of December 31, 2018.2019. The Company’s funding policy is to contribute at least the minimum amounts that are required to be funded under the Employee Retirement Income Security Act, but not more than the maximum amounts that are currently deductible for income tax purposes. The Company contributed $14.6$7.3 million in cash to the pension plan for the sixthree months ended June 30, 2019March 31, 2020 and it expects to contribute a total of $22.0$22 million in 2019.2020.
The Company uses a December 31 measurement date for its defined benefit pension and other postretirement benefit plans. The following table sets forth the components of net periodic benefit costs for the three and sixthree months ended June 30March 31 (dollars in thousands):
Pension Benefits Other Postretirement BenefitsPension Benefits Other Postretirement Benefits
2019 2018 2019 20182020 2019 2020 2019
Three months ended June 30:       
Service cost (a)$4,948
 $5,450
 $753
 $804
Service cost$5,546
 $4,874
 $979
 $772
Interest cost7,100
 6,466
 1,164
 1,197
6,971
 7,138
 1,515
 1,372
Expected return on plan assets(7,953) (8,250) (611) (500)(9,125) (7,815) (630) (718)
Amortization of prior service cost75
 75
 (275) 209
75
 75
 (275) (275)
Net loss recognition2,426
 1,842
 1,329
 562
1,654
 2,415
 1,243
 1,246
Net periodic benefit cost$6,596
 $5,583
 $2,360
 $2,272
$5,121
 $6,687
 $2,832
 $2,397
Six months ended June 30:       
Service cost (a)$9,822
 $10,900
 $1,525
 $1,608
Interest cost14,238
 12,932
 2,536
 2,394
Expected return on plan assets(15,768) (16,500) (1,329) (1,000)
Amortization of prior service cost150
 150
 (550) (606)
Net loss recognition4,841
 3,930
 2,575
 2,217
Net periodic benefit cost$13,283
 $11,412
 $4,757
 $4,613

(a)Total service costs in the table above are recorded to the same accounts as labor expense. Labor and benefits expense is recorded to various projects based on whether the work is a capital project or an operating expense. Approximately 40 percent of all labor and benefits is capitalized to utility property and 60 percent is expensed to utility other operating expenses.
Total service costs in the table above are recorded to the same accounts as labor expense. Labor and benefits expense is recorded to various projects based on whether the work is a capital project or an operating expense. Approximately 40 percent of all labor and benefits is capitalized to utility property and 60 percent is expensed to utility other operating expenses.
The non-service portion of costs in the table above are recorded to other expense below income from operations in the Condensed Consolidated Statements of Income or capitalized as a regulatory asset. Approximately 40 percent of the costs are capitalized to regulatory assets and 60 percent is expensed to the income statement.

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NOTE 8.7. INCOME TAXES
The following table summarizes the significant factors impacting the difference between our effective tax rate and the federal statutory rate for the three and six months ended June 30March 31 (dollars in thousands):
 2020 2019
Federal income taxes at statutory rates$11,961
21.0 % $30,639
21.0 %
Increase (decrease) in tax resulting from:     
Tax effect of regulatory treatment of utility plant differences(2,402)(4.2) (2,080)(1.4)
State income tax expense1,227
2.1
 1,659
1.1
Acquisition costs

 (1,824)(1.2)
Settlement of equity awards165
0.3
 612
0.4
Other(2,419)(4.2) 1,011
0.7
Total income tax expense$8,532
15.0 % $30,017
20.6 %

 Three months ended June 30, Six months ended June 30,
 2019 2018 2019 2018
Federal income taxes at statutory rates$4,874
21.0 % $6,479
21.0 % $35,513
21.0 % $20,269
21.0 %
Increase (decrease) in tax resulting from:           
Tax effect of regulatory treatment of utility plant differences(2,139)(9.2) (1,981)(6.4) (4,219)(2.5) (2,999)(3.1)
State income tax expense(8)
 60
0.2
 1,651
1.0
 1,024
1.1
Acquisition costs112
0.5
 73
0.2
 (1,712)(1.0) 119
0.1
Non-plant excess deferred turnaround (1)(5,091)(21.9) (11)
 (5,601)(3.3) (11)
Tax loss on sale of METALfx(1,259)(5.4) 

 (1,259)(0.8) 

Valuation allowance1,245
5.3
 

 1,245
0.7
 

Settlement of equity awards

 

 612
0.4
 (990)(1.0)
Other525
2.2
 589
1.9
 2,046
1.2
 (1,493)(1.6)
Total income tax expense (benefit)$(1,741)(7.5)% $5,209
16.9 % $28,276
16.7 % $15,919
16.5 %
(1)In March 2019, the IPUC approved an all-party settlement agreement related to electric tax benefits that were set aside for Colstrip in the 2017 general rate case order. In the approved settlement agreement, the parties agreed to utilize approximately $6.4 million ($5.1 million when tax-effected) of the electric tax benefits to offset costs associated with accelerating the depreciation of Colstrip Units 3 & 4, to reflect a remaining useful life of those units through December 31, 2027. In the second quarter 2019, the Company recorded a one-time charge to depreciation expense with an offsetting amount included in income tax expense.
NOTE 9.8. COMMITTED LINES OF CREDIT
Avista Corp.
Avista Corp. has a committed line of credit with various financial institutions in the total amount of $400.0 million that expires. The Company expects to amend and extend the revolving line of credit agreement in the second quarter for a revised term of one additional year beyond the current maturity date of April 2021,. with the option to extend for an additional one year period. The committed line of credit is secured by non-transferable first mortgage bonds of the Company issued to the agent bank that would only become due and payable in the event, and then only to the extent, that the Company defaults on its obligations under the committed line of credit.
Balances outstanding and interest rates of borrowings (excluding letters of credit) under the Company’s revolving committed line of credit were as follows as of June 30, 2019March 31, 2020 and December 31, 20182019 (dollars in thousands):
June 30, December 31,March 31, December 31,
2019 20182020 2019
Balance outstanding at end of period (1)$169,000
 $190,000
$185,000
 $182,300
Letters of credit outstanding at end of period$18,603
 $10,503
$32,983
 $21,473
Average interest rate at end of period3.26% 3.18%1.66% 2.64%

(1)
As of March 31, 2020 and December 31, 2019, the borrowings outstanding under Avista Corp.'s committed line of credit were
As of June 30, 2019 and December 31, 2018, the balance outstanding was classified as short-term borrowings on the Condensed Consolidated Balance Sheet.
AEL&P
AEL&P has a committed line of credit in the amount of $25.0$25.0 million that expires in November 2019.2024. As of June 30, 2019March 31, 2020 and December 31, 2018,2019, there were no borrowings orof $0 and $3.5 million, respectively, and there were no letters of credit outstanding under this committed line of credit. The committed line of credit is secured by non-transferable first mortgage bonds of AEL&P issued to the agent bank that would only become due and payable in the event, and then only to the extent, that AEL&P defaults on its obligations under the committed line of credit.
NOTE 9. CREDIT AGREEMENT
Credit Agreement
On April 6, 2020, the Company entered into a Credit Agreement with U.S. Bank National Association, as Lender and Administrative Agent, and CoBank, ACB, as Lender in the amount of $100 million at an interest rate of 1-Month LIBOR plus 125 basis points with a maturity date of April 5, 2021. Loans under this agreement are unsecured and have a variable annual interest rate determined by either the Eurodollar rate or the Alternative Base Rate depending on the type of loan selected by Avista Corp.
The Credit Agreement contains customary covenants and default provisions, including a covenant not to permit the ratio of "consolidated total debt" to "consolidated total capitalization" of Avista Corp. to be greater than 65 percent at any time.
The Company has borrowed the entire $100 million available under this agreement, which is being used to provide additional liquidity. The amount can be repaid early; however, the amount repaid cannot be re-borrowed.

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NOTE 10. LONG-TERM DEBT TO AFFILIATED TRUSTS
In 1997, the Company issued Floating Rate Junior Subordinated Deferrable Interest Debentures, Series B, with a principal amount of $51.5 million to Avista Capital II, an affiliated business trust formed by the Company. Avista Capital II issued $50.0 million of Preferred Trust Securities with a floating distribution rate of LIBOR plus 0.875 percent, calculated and reset quarterly.
The distribution rates paid were as follows during the sixthree months ended June 30, 2019March 31, 2020 and the year ended December 31, 2018:2019:
June 30, December 31,March 31, December 31,
2019 20182020 2019
Low distribution rate3.40% 2.36%2.46% 2.79%
High distribution rate3.50% 3.61%2.79% 3.61%
Distribution rate at the end of the period3.40% 3.61%2.46% 2.79%

Concurrent with the issuance of the Preferred Trust Securities, Avista Capital II issued $1.5 million of Common Trust Securities to the Company. The Preferred Trust Securities may be redeemed at the option of Avista Capital II at any time and mature on June 1, 2037. In December 2000, the Company purchased $10.0 million of these Preferred Trust Securities.
The Company owns 100 percent of Avista Capital II and has solely and unconditionally guaranteed the payment of distributions on, and redemption price and liquidation amount for, the Preferred Trust Securities to the extent that Avista Capital II has funds available for such payments from the respective debt securities. Upon maturity or prior redemption of such debt securities, the Preferred Trust Securities will be mandatorily redeemed. The Company does not include these capital trusts in its consolidated financial statements as Avista Corp. is not the primary beneficiary. As such, the sole assets of the capital trusts are $51.5 million of junior subordinated deferrable interest debentures of Avista Corp., which are reflected on the Condensed Consolidated Balance Sheets. Interest expense to affiliated trusts in the Condensed Consolidated Statements of Income represents interest expense on these debentures.
NOTE 11. FAIR VALUE
The carrying values of cash and cash equivalents, accounts and notes receivable, accounts payable, and short-term borrowings are reasonable estimates of their fair values. Long-term debt (including current portion and material capital leases) and long-term debt to affiliated trusts are reported at carrying value on the Condensed Consolidated Balance Sheets.
The fair value hierarchy prioritizes the inputs used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurement) and the lowest priority to fair values derived from unobservable inputs (Level 3 measurement).
The three levels of the fair value hierarchy are defined as follows:
Level 1 – Quoted prices are available in active markets for identical assets or liabilities. Active markets are those in which transactions for the asset or liability occur with sufficient frequency and volume to provide pricing information on an ongoing basis.
Level 2 – Pricing inputs are other than quoted prices in active markets included in Level 1, but which are either directly or indirectly observable as of the reporting date. Level 2 includes those financial instruments that are valued using models or other valuation methodologies. These models are primarily industry-standard models that consider various assumptions, including quoted forward prices for commodities, time value, volatility factors, and current market and contractual prices for the underlying instruments, as well as other relevant economic measures. Substantially all of these assumptions are observable in the marketplace throughout the full term of the instrument, can be derived from observable data or are supported by observable levels at which transactions are executed in the marketplace.
Level 3 – Pricing inputs include significant inputs that are generally unobservable from objective sources. These inputs may be used with internally developed methodologies that result in management’s best estimate of fair value.
Financial assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. The Company’s assessment of the significance of a particular input to the fair value measurement requires judgment, and may affect the valuation of fair value assets and liabilities and their placement within the fair value hierarchy levels. The determination of the fair values incorporates various factors that not only include the credit standing of the counterparties involved and the impact of credit enhancements (such as cash deposits and letters of credit), but also the impact of Avista Corp.’s nonperformance risk on its liabilities.

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The following table sets forth the carrying value and estimated fair value of the Company’s financial instruments not reported at estimated fair value on the Condensed Consolidated Balance Sheets as of June 30, 2019March 31, 2020 and December 31, 20182019 (dollars in thousands):
June 30, 2019 December 31, 2018March 31, 2020 December 31, 2019
Carrying
Value
 
Estimated
Fair Value
 
Carrying
Value
 
Estimated
Fair Value
Carrying
Value
 
Estimated
Fair Value
 
Carrying
Value
 
Estimated
Fair Value
Long-term debt (Level 2)$1,053,500
 $1,198,009
 $1,053,500
 $1,142,292
$963,500
 $1,107,956
 $963,500
 $1,124,649
Long-term debt (Level 3)767,000
 762,204
 767,000
 734,742
947,000
 949,144
 947,000
 1,048,440
Snettisham finance lease obligation (Level 3)55,880
 58,200
 57,210
 55,600
53,850
 56,900
 54,550
 58,000
Long-term debt to affiliated trusts (Level 3)51,547
 39,691
 51,547
 38,145
51,547
 33,506
 51,547
 41,238

These estimates of fair value of long-term debt and long-term debt to affiliated trusts were primarily based on available market information, which generally consists of estimated market prices from third party brokers for debt with similar risk and terms. The price ranges obtained from the third party brokers consisted of par values of 77.0065.00 to 130.25,133.98, where a par value of 100.0 represents the carrying value recorded on the Condensed Consolidated Balance Sheets. Level 2 long-term debt represents publicly issued bonds with quoted market prices; however, due to their limited trading activity, they are classified as Level 2 because brokers must generate quotes and make estimates if there is no trading activity near a period end. Level 3 long-term debt consists of private placement bonds and debt to affiliated trusts, which typically have no secondary trading activity. Fair values in Level 3 are estimated based on market prices from third party brokers using secondary market quotes for debt with similar risk and terms to generate quotes for Avista Corp. bonds. Due to the unique nature of the Snettisham capital lease obligation, the estimated fair value of these items was determined based on a discounted cash flow model using available market information. The Snettisham capital lease obligation was discounted to present value using the Morgan Markets A Ex-Fin discount rate as published on June 30, 2019.March 31, 2020.
The following table discloses by level within the fair value hierarchy the Company’s assets and liabilities measured and reported on the Condensed Consolidated Balance Sheets as of June 30, 2019March 31, 2020 and December 31, 20182019 at fair value on a recurring basis (dollars in thousands):
Level 1 Level 2 Level 3 Counterparty
and Cash
Collateral
Netting (1)
 TotalLevel 1 Level 2 Level 3 Counterparty
and Cash
Collateral
Netting (1)
 Total
June 30, 2019         
March 31, 2020         
Assets:                  
Energy commodity derivatives$
 $31,074
 $
 $(30,739) $335
$
 $35,061
 $
 $(30,849) $4,212
Level 3 energy commodity derivatives:                  
Natural gas exchange agreement
 
 45
 (45) 

 
 26
 (26) 
Foreign currency exchange derivatives
 33
 
 
 33

 36
 
 (36) 
Interest rate swap derivatives
 1,402
 
 (969) 433
Deferred compensation assets:                  
Mutual Funds:                  
Fixed income securities (2)1,787
 
 
 
 1,787
2,642
 
 
 
 2,642
Equity securities (2)6,325
 
 
 
 6,325
5,585
 
 
 
 5,585
Total$8,112
 $32,509
 $45
 $(31,753) $8,913
$8,227
 $35,097
 $26
 $(30,911) $12,439
Liabilities:                  
Energy commodity derivatives$
 $63,974
 $
 $(56,913) $7,061
$
 $30,464
 $
 $(30,154) $310
Level 3 energy commodity derivatives:                  
Natural gas exchange agreement
 
 3,037
 (45) 2,992

 
 2,279
 (26) 2,253
Foreign currency exchange derivatives
 103
 
 (36) 67
Interest rate swap derivatives
 32,418
 
 (5,999) 26,419

 112,238
 
 (27,090) 85,148
Total$
 $96,392
 $3,037
 $(62,957) $36,472
$
 $142,805
 $2,279
 $(57,306) $87,778

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Level 1 Level 2 Level 3 Counterparty
and Cash
Collateral
Netting (1)
 TotalLevel 1 Level 2 Level 3 Counterparty
and Cash
Collateral
Netting (1)
 Total
December 31, 2018         
December 31, 2019         
Assets:                  
Energy commodity derivatives$
 $36,252
 $
 $(35,982) $270
$
 $41,546
 $
 $(40,452) $1,094
Level 3 energy commodity derivatives:                  
Natural gas exchange agreement
 
 31
 (31) 

 
 27
 (27) 
Foreign currency exchange derivatives
 97
 
 
 97
Interest rate swap derivatives
 10,566
 
 (440) 10,126

 1,552
 
 (963) 589
Deferred compensation assets:                  
Mutual Funds:                  
Fixed income securities (2)1,745
 
 
 
 1,745
2,232
 
 
 
 2,232
Equity securities (2)6,157
 
 
 
 6,157
6,271
 
 
 
 6,271
Total$7,902
 $46,818
 $31
 $(36,453) $18,298
$8,503
 $43,195
 $27
 $(41,442) $10,283
Liabilities:                  
Energy commodity derivatives$
 $89,283
 $
 $(87,199) $2,084
$
 $45,144
 $
 $(43,830) $1,314
Level 3 energy commodity derivatives:                  
Natural gas exchange agreement
 
 2,805
 (31) 2,774

 
 3,003
 (27) 2,976
Power exchange agreement
 
 2,488
 
 2,488
Power option agreement
 
 1
 
 1
Foreign currency exchange derivatives
 45
 
 
 45
Interest rate swap derivatives
 7,831
 
 (970) 6,861

 34,056
 
 (7,733) 26,323
Total$
 $97,159
 $5,294
 $(88,200) $14,253
$
 $79,200
 $3,003
 $(51,590) $30,613
(1)The Company is permitted to net derivative assets and derivative liabilities with the same counterparty when a legally enforceable master netting agreement exists. In addition, the Company nets derivative assets and derivative liabilities against any payables and receivables for cash collateral held or placed with these same counterparties.
(2)These assets are included in other property and investments-net and other non-current assets on the Condensed Consolidated Balance Sheets.
The difference between the amount of derivative assets and liabilities disclosed in respective levels in the table above and the amount of derivative assets and liabilities disclosed on the Condensed Consolidated Balance Sheets is due to netting arrangements with certain counterparties. See Note 65 for additional discussion of derivative netting.
To establish fair value for energy commodity derivatives, the Company uses quoted market prices and forward price curves to estimate the fair value of energy commodity derivative instruments included in Level 2. In particular, electric derivative valuations are performed using market quotes, adjusted for periods in between quotable periods. Natural gas derivative valuations are estimated using New York Mercantile Exchange pricing for similar instruments, adjusted for basin differences, using market quotes. Where observable inputs are available for substantially the full term of the contract, the derivative asset or liability is included in Level 2.
To establish fair values for interest rate swap derivatives, the Company uses forward market curves for interest rates for the term of the swaps and discounts the cash flows back to present value using an appropriate discount rate. The discount rate is calculated by third party brokers according to the terms of the swap derivatives and evaluated by the Company for reasonableness, with consideration given to the potential non-performance risk by the Company. Future cash flows of the interest rate swap derivatives are equal to the fixed interest rate in the swap compared to the floating market interest rate multiplied by the notional amount for each period.
To establish fair value for foreign currency derivatives, the Company uses forward market curves for Canadian dollars against the US dollar and multiplies the difference between the locked-in price and the market price by the notional amount of the derivative. Forward foreign currency market curves are provided by third party brokers. The Company's credit spread is factored into the locked-in price of the foreign exchange contracts.
Deferred compensation assets and liabilities represent funds held by the Company in a Rabbi Trust for an executive deferral plan. These funds consist of actively traded equity and bond funds with quoted prices in active markets. The balance disclosed in the table above excludes cash and cash equivalents of $0.4 million as of March 31, 2020 and December 31, 2019.

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in the table above excludes cash and cash equivalents of $0.4 million as of June 30, 2019 and $0.5 million as of December 31, 2018.
Level 3 Fair Value
Under the power exchange agreement, which expired on June 30, 2019, the Company purchased power at a price that was based on the average operating and maintenance (O&M) charges from three surrogate nuclear power plants around the country. To estimate the fair value of this agreement, the Company estimated the difference between the purchase price based on the future O&M charges and forward prices for energy. The Company compared the Level 2 brokered quotes and forward price curves described above to an internally developed forward price which was based on the average O&M charges from the three surrogate nuclear power plants for the current year. The Company estimated the volumes of the transactions that would take place in the future based on historical average transaction volumes per delivery year (November to April). Significant increases or decreases in any of these inputs in isolation would result in a significantly higher or lower fair value measurement.
For the natural gas commodity exchange agreement, the Company uses the same Level 2 brokered quotes described above; however, the Company also estimates the purchase and sales volumes (within contractual limits) as well as the timing of those transactions. Changing the timing of volume estimates changes the timing of purchases and sales, impacting which brokered quote is used. Because the brokered quotes can vary significantly from period to period, the unobservable estimates of the timing and volume of transactions can have a significant impact on the calculated fair value. The Company currently estimates volumes and timing of transactions based on a most likely scenario using historical data. Historically, the timing and volume of transactions have not been highly correlated with market prices and market volatility.
The following table presents the quantitative information which was used to estimate the fair values of the Level 3 assets and liabilities above as of June 30, 2019March 31, 2020 (dollars in thousands):
  Fair Value (Net) at      
  June 30, 2019 Valuation Technique 
Unobservable
Input
 Range
Natural gas exchange
agreement
 $(2,992) Internally derived
weighted average
cost of gas
 
Forward purchase
prices
 $1.37 - $2.30/mmBTU
     
    Forward sales prices $1.45 - $3.62/mmBTU
    Purchase volumes 118,162 - 310,000 mmBTUs
    Sales volumes 60,000 - 310,000 mmBTUs
  Fair Value (Net) at      
  March 31, 2020 Valuation Technique 
Unobservable
Input
 
Range and
Weighted Average Price
Natural gas exchange
agreement
 $(2,253) Internally derived
weighted average
cost of gas
 
Forward purchase
prices
 $1.16 - $1.80/mmBTU
$1.47 Weighted Average
     
    Forward sales prices $1.33 - $3.79/mmBTU
$2.96 Weighted Average
    Purchase volumes 155,000 - 310,000 mmBTUs
    Sales volumes 60,000 - 310,000 mmBTUs

The valuation methods, significant inputs and resulting fair values described above were developed by the Company's management and are reviewed on at least a quarterly basis to ensure they provide a reasonable estimate of fair value each reporting period.
The following table presents activity for energy commodity derivative assets (liabilities) measured at fair value using significant unobservable inputs (Level 3) for the three and six months ended June 30March 31 (dollars in thousands):
 Natural Gas Exchange Agreement Power Exchange Agreement Total
Three months ended June 30, 2019:     
Balance as of April 1, 2019$(2,104) $(612) $(2,716)
Total gains or (losses) (realized/unrealized):     
Included in regulatory assets/liabilities (1)(829) 1,454
 625
Settlements(59) (842) (901)
Ending balance as of June 30, 2019 (2)$(2,992) $
 $(2,992)


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Natural Gas Exchange Agreement Power Exchange Agreement TotalNatural Gas Exchange Agreement Power Exchange Agreement Total
Three months ended June 30, 2018:     
Balance as of April 1, 2018$(2,805) $(10,163) $(12,968)
Three months ended March 31, 2020:     
Balance as of January 1, 2020$(2,976) $
 $(2,976)
Total gains or (losses) (realized/unrealized):          
Included in regulatory assets/liabilities (1)(768) 2,597
 1,829
485
 
 485
Settlements93
 1,221
 1,314
238
 
 238
Ending balance as of June 30, 2018 (2)$(3,480) $(6,345) $(9,825)
Six months ended June 30, 2019:     
Ending balance as of March 31, 2020 (2)$(2,253) $
 $(2,253)
Three months ended March 31, 2019:     
Balance as of January 1, 2019$(2,774) $(2,488) $(5,262)$(2,774) $(2,488) $(5,262)
Total gains or (losses) (realized/unrealized):          
Included in regulatory assets/liabilities (1)8,148
 436
 8,584
8,977
 (1,018) 7,959
Settlements(8,366) 2,052
 (6,314)(8,307) 2,894
 (5,413)
Ending balance as of June 30, 2019 (2)$(2,992) $
 $(2,992)
Ending balance as of March 31, 2019 (2)$(2,104) $(612) $(2,716)
          
Six months ended June 30, 2018:     
Balance as of January 1, 2018$(3,164) $(13,245) $(16,409)
Total gains or (losses) (realized/unrealized):     
Included in regulatory assets/liabilities (1)(565) 720
 155
Settlements249
 6,180
 6,429
Ending balance as of June 30, 2018 (2)$(3,480) $(6,345) $(9,825)
     

(1)All gains and losses are included in other regulatory assets and liabilities. There were no gains and losses included in either net income or other comprehensive income during any of the periods presented in the table above.
(2)There were no purchases, issuances or transfers from other categories of any derivatives instruments during the periods presented in the table above.
NOTE 12. COMMON STOCK
The Company hashad entered into four separate sales agency agreements under which the sales agents may offeroffered and sellsold new shares of the Company’s common stock from time to time. During the three and six months ended June 30, 2019March 31, 2020 the Company issued 0.4 milliondid not issue shares under the sales agency agreements. These sales agency agreements provide for the offering of a maximum of approximately 4.6 million shares, of which approximately 4.2 million remain unissued as of June 30, 2019. Subject to the satisfaction of customary conditions, theexpired on February 29, 2020. The Company has the right to increase the maximum number of shares that may be offered under these agreements subject to regulatory approval.is currently working on entering into new sales agency agreements.
NOTE 13. ACCUMULATED OTHER COMPREHENSIVE LOSS
Accumulated other comprehensive loss, net of tax, consisted of the following as of June 30, 2019March 31, 2020 and December 31, 20182019 (dollars in thousands):
 June 30, December 31,
 2019 2018
Unfunded benefit obligation for pensions and other postretirement benefit plans - net of taxes of $2,006 and $2,091, respectively$7,545
 $7,866
 March 31, December 31,
 2020 2019
Unfunded benefit obligation for pensions and other postretirement benefit plans - net of taxes of $2,673 and $2,727, respectively$10,054
 $10,259

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The following table details the reclassifications out of accumulated other comprehensive loss to net income by component for the three and six months ended June 30March 31 (dollars in thousands).
 Amounts Reclassified from Accumulated Other Comprehensive Loss 
 Three months ended June 30, Six months ended June 30,  Amounts Reclassified from Accumulated Other Comprehensive Loss 
Details about Accumulated Other Comprehensive Loss Components 2019 2018 2019 2018 Affected Line Item in Statement of Income 2020 2019 Affected Line Item in Statement of Income
Amortization of defined benefit pension itemsAmortization of defined benefit pension items       Amortization of defined benefit pension items   
Amortization of net prior service cost $(200) $(228) $(400) $(456) (a) $(200) $(200) (a)
Amortization of net loss 3,755
 2,995
 7,416
 5,990
 (a) 3,100
 3,661
 (a)
Adjustment due to effects of regulation (3,352) (2,509) (6,610) (5,017) (a) (2,641) (3,258) (a)
 203
 258
 406
 517
 Total before tax 259
 203
 Total before tax
 (42) (54) (85) (109) Tax expense (54) (43) Tax expense
 $161
 $204
 $321
 $408
 Net of tax $205
 $160
 Net of tax
(a)These accumulated other comprehensive loss components are included in the computation of net periodic pension cost (see Note 76 for additional details).
NOTE 14. EARNINGS PER COMMON SHARE ATTRIBUTABLE TO AVISTA CORP. SHAREHOLDERS
The following table presents the computation of basic and diluted earnings per common share attributable to Avista Corp. shareholders for the three and sixthree months ended June 30March 31 (in thousands, except per share amounts):
Three months ended June 30, Six months ended June 30,
2019 2018 2019 20182020 2019
Numerator:          
Net income attributable to Avista Corp. shareholders$25,319
 $25,577
 $141,113
 $80,467
$48,424
 $115,794
Denominator:          
Weighted-average number of common shares outstanding-basic65,894
 65,677
 65,814
 65,658
67,239
 65,733
Effect of dilutive securities:          
Performance and restricted stock awards69
 306
 69
 299
142
 208
Weighted-average number of common shares outstanding-diluted65,963
 65,983
 65,883
 65,957
67,381
 65,941
Earnings per common share attributable to Avista Corp. shareholders:          
Basic$0.38
 $0.39
 $2.14
 $1.23
$0.72
 $1.76
Diluted$0.38
 $0.39
 $2.14
 $1.22
$0.72
 $1.76
There were no shares excluded from the calculation because they were antidilutive.
NOTE 15. COMMITMENTS AND CONTINGENCIES
In the course of its business, the Company becomes involved in various claims, controversies, disputes and other contingent matters, including the items described in this Note. Some of these claims, controversies, disputes and other contingent matters involve litigation or other contested proceedings. For all such matters, the Company intends to vigorously protect and defend its interests and pursue its rights. However, no assurance can be given as to the ultimate outcome of any particular matter because litigation and other contested proceedings are inherently subject to numerous uncertainties. For matters that affect Avista Utilities’ or AEL&P's operations, the Company intends to seek, to the extent appropriate, recovery of incurred costs through the ratemaking process.
Cabinet Gorge Total Dissolved Gas Abatement Plan
Dissolved atmospheric gas levels (referred to as "Total Dissolved Gas" or "TDG") in the Clark Fork River exceed state of Idaho and federal water quality numeric standards downstream of Cabinet Gorge particularly during periods when excess river flows must be diverted over the spillway. Under the terms of the Clark Fork Settlement Agreement (CFSA) as incorporated in Avista Corp.’s FERC license for the Clark Fork Project, Avista Corp. has worked in consultation with agencies, tribes and other stakeholders to address this issue. Under the terms of a gas supersaturation mitigation plan, Avista Corp. is reducing TDG by constructing spill crest modifications on spill gates at the dam. These modifications have been shown to be effective in reducing

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TDG downstream. TDG monitoring and analysis is ongoing. Under the terms of the mitigation plan, Avista Corp. will continue to work with stakeholders to determine the degree to which TDG abatement reduces future mitigation obligations. The Company has sought, and will continue to seek recovery, through the ratemaking process, of all operating and capitalized costs related to this issue.
Legal Proceedings Related to the Terminated Acquisition by Hydro One
See Note 17 for information regarding the termination of the proposed acquisition of the Company by Hydro One.
In connection with the now terminated acquisition, three lawsuits were filed in the United States District Court for the Eastern District of Washington and were subsequently voluntarily dismissed by the plaintiffs.
One lawsuit was filed in the Superior Court for the State of Washington in and for Spokane County, captioned as follows:
Fink v. Morris, et al., No. 17203616-6 (filed September 15, 2017, amended complaint filed October 25, 2017).
The complaint generally alleged that the members of the Board of Directors of Avista Corp. breached their fiduciary duties by, among other things, conducting an allegedly inadequate sale process and agreeing to the acquisition at a price that allegedly undervalued Avista Corporation, and that Hydro One Limited, Olympus Holding Corp., and Olympus Corp. aided and abetted those purported breaches of duty. The complaint sought various remedies, including monetary damages, attorneys’ fees and expenses. Subsequent to the termination of the proposed acquisition in January 2019, the complaint was voluntarily dismissed by the plaintiffs.
2015 Washington General Rate Cases
In January 2016, the Company received an order (Order 05) that concluded its electric and natural gas general rate cases that were originally filed with the WUTC in February 2015. New electric and natural gas rates were effective on January 11, 2016.
WUTC Order Denying Industrial Customers of Northwest Utilities / Public Counsel Joint Motion for Clarification, WUTC Staff Motion to Reconsider and WUTC Staff Motion to Reopen Record
In January 2016, the Industrial Customers of Northwest Utilities, the Public Counsel Unit of the Washington State Office of the Attorney General (PC) and the WUTC Staff, which is a separate party in the general rate case proceedings from the WUTC Advisory Staff, filed Motions for Clarification requesting the WUTC to clarify their attrition adjustment and the end result electric revenue amounts. The Motions for Clarification suggested that the electric revenue decrease should have been significantly larger than what was included in Order 05.
In February 2016, the WUTC issued an order (Order 06) denying the Motions summarized above and affirming Order 05, including an $8.1 million decrease in electric base revenue.
PC Petition for Judicial Review
In March 2016, PCPublic Counsel (PC) filed in Thurston County Superior Court a Petition for Judicial Review of the WUTC's Order 05 and Order 06 described above.06. In April 2016, this matter was certified for review directly by the Court of Appeals, an intermediate appellate court in the State of Washington.

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On August 7, 2018, the Court of Appeals issued a "Published Opinion" (Opinion) which concluded that the WUTC's use of an attrition allowance to calculate Avista Corp.'s rate base violated Washington law. In the Opinion, the Court stated that because the projected additions to rate base in the future were not "used and useful" for service at the time the request for the rate increase was made, they may not lawfully be included in the Company's rate base to justify a rate increase. Accordingly, the Court concluded that the WUTC erred in including an attrition allowance in the calculation of Avista Corp.’s electric and natural gas rate base. The Court noted, however, that the law does not prohibit an attrition allowance in the calculation, for ratemaking purposes, of recoverable operating and maintenance expense. Since the WUTC order provided one lump sum attrition allowance without distinguishing what portion was for rate base and which was for operating and maintenance expenses or other considerations, the Court struck all portions of the attrition allowance attributable to Avista Corp.'s rate base and reversed and remanded the case for the WUTC to recalculate Avista Corp.’s rates without including an attrition allowance in the calculation of rate base.
On October 1, 2018,March 6, 2020, the CourtCompany received an order from the WUTC that will require it to refund $8.5 million to electric and natural gas customers. The Company will refund $4.9 million to electric customers and $3.6 million to natural gas customers. The Company previously recorded a customer refund liability of Appeals terminated its review$3.6 million in 2019.
Boyds Fire (State of Washington Department of Natural Resources v. Avista)
On August 19, 2019, the Company was served with a complaint filed by the State of Washington Department of Natural Resources, seeking recovery of fire suppression costs and related expenses incurred in connection with a wildfire that occurred in Ferry County, Washington in August 2018. Specifically, the complaint alleges that the fire, which became known as the “Boyds Fire,” was caused by a dead ponderosa pine tree falling into an overhead distribution line, and that Avista Corp. was negligent in failing to identify and remove it before the tree came into contact with the line. Avista Corp. disputes that the tree in question was the cause of the fire and that it was negligent in failing to identify and remove it. The case is in the early stages of discovery and the plaintiff has not yet provided a statement specifying damages. Because the resolution of this case, remandingclaim remains uncertain, legal counsel cannot express an opinion on the extent, if any, of the Company’s liability, nor is it backpossible for the Company to estimate the Thurston County Superior Court. On April 17, 2019, the Thurston County Superior Court issued a Remand Order, granting a Joint Motionimpact of Avista Corp., PC and the WUTCany outcome at this time. The Company intends to remand the case back to the WUTC. 
On June 20, 2019, Avista Corp. filed testimony with the WUTCvigorously defend itself in the remand case. In Avista Corp.'s testimony, it asserted that the potential amount to return to customers is limited to the 2015 general rate cases because in subsequent Washington general rate cases (specifically those approved in December 2016), the WUTC did not include any attrition allowance on rate base. In

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the remand testimony the Company also asserted that no refund is due to customers for the 2015 general rate cases because actual 2016 electric rate base was greater than the 2016 electric rate base allowed in the general rate case, which included an attrition allowance. In addition, while 2016 actual natural gas rate base was slightly lower than the rate base allowed in the general rate case including the attrition allowance, any over-earnings were offset by the earnings sharing mechanism that allowed for a refund to customers.
Even though the Company believes the issue only relates to the 2015 general rate cases and no refund is due to customers, the Company cannot predict the outcome of this matter at this time and cannot estimate how much, if any, it could be required to refund to customers.litigation.
Other Contingencies
In the normal course of business, the Company has various other legal claims and contingent matters outstanding. The Company believes that any ultimate liability arising from these actions will not have a material impact on its financial condition, results of operations or cash flows. It is possible that a change could occur in the Company’s estimates of the probability or amount of a liability being incurred. Such a change, should it occur, could be significant. See "Note 2021 of the Notes to Consolidated Financial Statements" in the 20182019 Form 10-K for additional discussion regarding other contingencies.
NOTE 16. INFORMATION BY BUSINESS SEGMENTS
The business segment presentation reflects the basis used by the Company's management to analyze performance and determine the allocation of resources. The Company's management evaluates performance based on income (loss) from operations before income taxes as well as net income (loss) attributable to Avista Corp. shareholders. The accounting policies of the segments are the same as those described in the summary of significant accounting policies. Avista Utilities' business is managed based on the total regulated utility operation; therefore, it is considered one segment. AEL&P is a separate reportable business segment, as it has separate financial reports that are reviewed in detail by the Chief Operating Decision Maker and its operations and risks are sufficiently different from Avista Utilities and the other businesses at AERC that it cannot be aggregated with any other operating segments. The Other category, which is not a reportable segment, includes other investments and operations of various subsidiaries, as well as certain other operations of Avista Capital.
The following table presents information for each of the Company’s business segments (dollars in thousands):
 
Avista
Utilities
 Alaska Electric Light and Power Company Total Utility Other 
Intersegment
Eliminations
(1)
 Total
For the three months ended June 30, 2019:          
Operating revenues$289,808
 $8,743
 $298,551
 $2,261
 $
 $300,812
Resource costs88,506
 (67) 88,439
 
 
 88,439
Other operating expenses (2)84,602
 3,129
 87,731
 6,332
 
 94,063
Depreciation and amortization53,070
 2,409
 55,479
 155
 
 55,634
Income (loss) from operations40,978
 3,016
 43,994
 (4,226) 
 39,768
Interest expense (3)24,316
 1,595
 25,911
 148
 (197) 25,862
Income taxes(2,947) 380
 (2,567) 826
 
 (1,741)
Net income attributable to Avista Corp. shareholders21,219
 1,076
 22,295
 3,024
 
 25,319
Capital expenditures (4)103,297
 3,076
 106,373
 22
 
 106,395
For the three months ended June 30, 2018:          
Operating revenues$302,222
 $10,482
 $312,704
 $6,594
 $
 $319,298
Resource costs103,022
 2,947
 105,969
 
 
 105,969
Other operating expenses (2) (5)78,848
 3,213
 82,061
 6,543
 
 88,604
Depreciation and amortization44,186
 1,465
 45,651
 199
 
 45,850
Income (loss) from operations (5)50,848
 2,579
 53,427
 (148) 
 53,279
Interest expense (3)24,428
 896
 25,324
 382
 (234) 25,472
Income taxes4,735
 446
 5,181
 28
 
 5,209
Net income attributable to Avista Corp. shareholders24,252
 1,282
 25,534
 43
 
 25,577
Capital expenditures (4)97,963
 3,352
 101,315
 338
 
 101,653


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The following table presents information for each of the Company’s business segments (dollars in thousands):
Avista
Utilities
 Alaska Electric Light and Power Company Total Utility Other 
Intersegment
Eliminations
(1)
 Total
Avista
Utilities
 Alaska Electric Light and Power Company Total Utility Other 
Intersegment
Eliminations
(1)
 Total
For the six months ended June 30, 2019:          
For the three months ended March 31, 2020:For the three months ended March 31, 2020:          
Operating revenues$667,510
 $19,624
 $687,134
 $10,159
 $
 $697,293
$377,205
 $12,202
 $389,407
 $823
 $
 $390,230
Resource costs227,218
 (1,432) 225,786
 
 
 225,786
129,557
 (10) 129,547
 
 
 129,547
Other operating expenses (2)185,185
 6,188
 191,373
 13,687
 
 205,060
Depreciation and amortization99,577
 4,816
 104,393
 364
 
 104,757
Income (loss) from operations101,202
 9,529
 110,731
 (3,892) 
 106,839
Interest expense (3)48,580
 3,191
 51,771
 736
 (637) 51,870
Income taxes25,597
 1,743
 27,340
 936
 
 28,276
Net income attributable to Avista Corp. shareholders133,120
 4,628
 137,748
 3,365
 
 141,113
Capital expenditures (4)195,606
 4,382
 199,988
 184
 
 200,172
For the six months ended June 30, 2018:          
Operating revenues$690,976
 $24,145
 $715,121
 $13,538
 $
 $728,659
Resource costs254,687
 5,900
 260,587
 
 
 260,587
Other operating expenses (2)153,987
 6,044
 160,031
 13,367
 
 173,398
Other operating expenses91,279
 3,217
 94,496
 1,360
 
 95,856
Depreciation and amortization87,453
 2,931
 90,384
 380
 
 90,764
48,974
 2,447
 51,421
 235
 
 51,656
Income (loss) from operations138,993
 8,701
 147,694
 (209) 
 147,485
76,534
 6,246
 82,780
 (587) 
 82,193
Interest expense (3)48,393
 1,790
 50,183
 717
 (399) 50,501
24,983
 1,589
 26,572
 131
 (86) 26,617
Income taxes15,152
 1,910
 17,062
 (1,143) 
 15,919
7,404
 1,301
 8,705
 (173) 
 8,532
Net income (loss) attributable to Avista Corp. shareholders79,792
 5,054
 84,846
 (4,379) 
 80,467
45,979
 3,395
 49,374
 (950) 
 48,424
Capital expenditures (4)179,139
 3,993
 183,132
 552
 
 183,684
94,056
 1,470
 95,526
 109
 
 95,635
For the three months ended March 31, 2019:For the three months ended March 31, 2019:          
Operating revenues$377,702
 $10,881
 $388,583
 $7,898
 $
 $396,481
Resource costs138,712
 (1,365) 137,347
 
 
 137,347
Other operating expenses (2)100,583
 3,059
 103,642
 7,355
 
 110,997
Depreciation and amortization46,507
 2,407
 48,914
 209
 
 49,123
Income from operations60,224
 6,513
 66,737
 334
 
 67,071
Interest expense (3)24,264
 1,596
 25,860
 588
 (440) 26,008
Income taxes28,544
 1,363
 29,907
 110
 
 30,017
Net income attributable to Avista Corp. shareholders111,901
 3,552
 115,453
 341
 
 115,794
Capital expenditures (4)92,309
 1,306
 93,615
 162
 
 93,777
Total Assets:                      
As of June 30, 2019:$5,520,529
 $277,934
 $5,798,463
 $107,753
 $(28,288) $5,877,928
As of December 31, 2018:$5,458,104
 $272,950
 $5,731,054
 $87,050
 $(35,528) $5,782,576
As of March 31, 2020:$5,808,619
 $272,178
 $6,080,797
 $112,213
 $(19,011) $6,173,999
As of December 31, 2019:$5,713,268
 $271,393
 $5,984,661
 $113,390
 $(15,595) $6,082,456


(1)Intersegment eliminations reported as interest expense represent intercompany interest.
(2)Other operating expenses for Avista Utilities for the three and six months ended June 30,March 31, 2019 and 2018 include merger transaction costs which are separately disclosed on the Condensed Consolidated Statements of Income.
(3)Including interest expense to affiliated trusts.
(4)The capital expenditures for the other businesses are included in other investing activities on the Condensed Consolidated Statements of Cash Flows.
NOTE 17. TERMINATION OF PROPOSED ACQUISITION BY HYDRO ONE
On July 19, 2017, Avista Corp. entered into a Merger Agreement that provided for Avista Corp. to become an indirect, wholly-owned subsidiary of Hydro One, subject to the satisfaction or waiver of specified closing conditions, including approval by regulatory agencies. Hydro One, based in Toronto, is Ontario’s largest electricity transmission and distribution provider.
Termination of the Merger Agreement
Due to the denial of the proposed merger by certain of the Company's regulatory commissions, on January 23, 2019, Avista Corp., Hydro One and certain subsidiaries thereof, entered into a Termination Agreement indicating their mutual agreement to terminate the Merger Agreement, effective immediately. Pursuant to the terms of the Termination Agreement, Hydro One paid Avista Corp. a $103 million termination fee on January 24, 2019. The termination fee was used for reimbursing the Company's transaction costs incurred from 2017 to 2019. The balance of the termination fee remaining after payment of 2019 transaction costs and applicable income taxes was used for general corporate purposes and reduced the Company's need for external financing. The 2019 costs totaled $19.7 million pre-tax and included financial advisers' fees, legal fees, consulting fees and employee time.
Other Information Related to the Terminated Acquisition
Due to the termination of the acquisition, all the financial commitments that were included in the various settlement agreements with the commissions for the proposed acquisition will not be required to be performed or observed.

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The Company incurred significant transaction costs consisting primarily of consulting, banking fees, legal fees and employee time, and these costs are not being passed through to customers. When the Company was assuming the transaction was going to be completed, a significant portion of these costs were not deductible for income tax purposes. Now that the transaction has been terminated, the Company expects more of the previously incurred transaction costs to be deductible so it expects additional tax benefits from these costs in 2019.
See Note 15 for discussion of shareholder lawsuits filed against the Company, the Company’s directors, Hydro One, Olympus Holding Corp., and Olympus Corp. in relation to the Merger Agreement and the proposed acquisition.
NOTE 18. SALE OF METALfx
In April 2019, Bay Area Manufacturing, Inc., a non-regulated subsidiary of Avista Corp., entered into a definitive agreement to sell its interest in METALfx to an independent third party. The transaction was a stock sale for a total cash purchase price of $17.5 million plus cash on-hand, subject to customary closing adjustments. The transaction closed on April 18, 2019, and as of that date the Company has no further involvement with METALfx.
The purchase price of $17.5 million, as adjusted, was divided among the security holders of METALfx, including the minority shareholder, pro rata based on ownership (Avista Corp. owned 89.2 percent of the equity of METALfx). As required under the purchase agreement, $1.2 million (7 percent of the purchase price) will be held in escrow for 24 months from the closing of the transaction to satisfy certain indemnification obligations.
When all escrow amounts are released, the salessale transaction is expected towill provide cash proceeds to Avista Corp., net of payments to the minority holder, contractually obligated compensation payments and other transaction expenses, of $16.5 million and resultmillion. The sale has resulted in a net gain after-tax of $2.3 million.$3.3 million, with $2.4 million recognized in the three months ended March 31, 2019. The Company expects to receive the full amount of its portion of the escrow accounts; therefore, the full amounts arehave been included in the gain calculation. The gross gain is included in "Other income," the transaction expenses paid are included in "Non-utility Other operating expenses" and any taxes associated with the sale are included in "Income tax expense" on the Condensed Consolidated Statements of Income.
Prior to the completion of the sales transaction, METALfx was not a reportable business segment and was included in other in the business segment footnote at Note 16. This transaction does not meet the criteria for discontinued operations as it does not represent a strategic shift that will have a major effect on the Company's ongoing operations,operations.

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REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
To the Shareholders and Board of Directors of
Avista Corporation
Spokane, Washington
Results of Review of Interim Financial Information
We have reviewed the accompanying condensed consolidated balance sheet of Avista Corporation and subsidiaries (the "Company") as of June 30, 2019,March 31, 2020, and the related condensed consolidated statements of income, comprehensive income, and equity for the three-month and six-month periods ended June 30, 2019 and 2018 and the related cash flows, for the six-monththree-month periods ended June 30,March 31, 2020 and 2019, and 2018, and the related notes (collectively referred to as the "interim financial information"). Based on our reviews, we are not aware of any material modifications that should be made to the accompanying interim financial information for it to be in conformity with accounting principles generally accepted in the United States of America.
We have previously audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidated balance sheet of the Company as of December 31, 2018,2019, and the related consolidated statements of income, comprehensive income, equity, and cash flows for the year then ended (not presented herein); and in our report dated February 19, 2019,25, 2020, we expressed an unqualified opinion on those consolidated financial statements. In our opinion, the information set forth in the accompanying condensed consolidated balance sheet as of December 31, 2018,2019, is fairly stated, in all material respects, in relation to the consolidated balance sheet from which it has been derived.
Basis for Review Results
This interim financial information is the responsibility of the Company's management. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.
We conducted our reviews in accordance with standards of the PCAOB. A review of interim financial information consists principally of applying analytical procedures and making inquiries of persons responsible for financial and accounting matters. It is substantially less in scope than an audit conducted in accordance with the standards of the PCAOB, the objective of which is the expression of an opinion regarding the financial statements taken as a whole. Accordingly, we do not express such an opinion.

/s/ Deloitte & Touche LLP
Seattle, Washington
August 6, 2019May 7, 2020

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Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations
Management’s Discussion and Analysis of Financial Condition and Results of Operations has been prepared in accordance with GAAP for interim financial information and with the instructions to Form 10-Q. The interim Management’s Discussion and Analysis of Financial Condition and Results of Operations does not contain the full detail or analysis which would be included in a full fiscal year Form 10-K; therefore, it should be read in conjunction with the Company's 20182019 Form 10-K.
Business Segments
Our business segments have not changed during the sixthree months ended June 30, 2019.March 31, 2020. See the 20182019 Form 10-K as well as “Note 16 of the Notes to Condensed Consolidated Financial Statements” for further information regarding our business segments.
The following table presents net income (loss) attributable to Avista Corp. shareholders for each of our business segments (and the other businesses) for the three and six months ended June 30March 31 (dollars in thousands):
Three months ended June 30, Six months ended June 30,
2019 2018 2019 20182020 2019
Avista Utilities$21,219
 $24,252
 $133,120
 $79,792
$45,979
 $111,901
AEL&P1,076
 1,282
 4,628
 5,054
3,395
 3,552
Other3,024
 43
 3,365
 (4,379)(950) 341
Net income attributable to Avista Corp. shareholders$25,319
 $25,577
 $141,113
 $80,467
$48,424
 $115,794
Executive Level Summary
Overall Results
Net income attributable to Avista Corp. shareholders was $25.3$48.4 million for the three months ended June 30, 2019, a slight decrease from $25.6March 31, 2020, compared to $115.8 million for the three months ended June 30, 2018. Net income was $141.1 million for the six months ended June 30, 2019, compared to $80.5 million for the six months ended June 30, 2018. The results for both the three and six months ended June 30, 2019 reflect, among other things, the positive impact of non-recurring events, as discussed below.March 31, 2019.
The increase in net income for the year-to-date was due to an increase in net income at Avista Utilities and our other businesses, partially offset by a decrease in net income at AEL&P. For the second quarter, net income at Avista Utilities and AEL&P decreased, while net income at our other businesses increased.
For the year-to-date, Avista Utilities' net income increaseddecreased due to the receipt, in the first quarter of 2019, of a $103 million termination fee from Hydro One (see "Note 17 of the Notes to Condensed Consolidated Financial Statements"), as well as the positive impact of general rate increases and customer growth. These increases which were partially offset by final transaction costsassociated expenses of $19.7 million pre-tax. In addition, during the first quarter of 2020, we recorded an accrual for the Hydro One transaction, taxes associated with the termination fee, increased transmission and distribution operating and maintenance costs (other operating expenses), a $7 million donation commitmentcustomer refunds related to the local community and increased depreciation and amortization. Foroutcome of the second quarter, Avista Utilities' net income decreased due to increased transmission and distribution operating and maintenance costs (other operating expenses), donation commitment costs and depreciation and amortization, partially offset by the positive impact of2015 Washington general rate increasescases outcome (see "Regulatory Matters"), an accrual for disallowed replacement power during an unplanned outage at Colstrip (see "Regulatory Matters"), and customer growth.
AEL&P net income decreased primarily due towe had an increase in other operating expenses and depreciation and amortization, which were partially offset by a decrease in our income tax expense and resource costs.
AEL&P net income decreased slightly, primarily due to a net decrease in income from operations that was caused by an increase in resource costs that was larger than the increase in operating revenues.
The increase in net income at our other businesses for the second quarter and year-to-date was primarily due to the sale of METALfxan equity investment and increased earnings from equityour other investments. In addition, 2018 included an impairment of one of our investments and expenses associated with a renovation project.
More detailed explanations of the fluctuations are provided in the results of operations and business segment discussions (Avista Utilities, AEL&P, and the other businesses) that follow this section.
General Rate CasesCOVID-19 Global Pandemic
The COVID-19 global pandemic is currently impacting all aspects of our business, as well as the global, national and Regulatory Laglocal economies. It is likely that the continued spread of COVID-19 and efforts to contain the virus, such as quarantines or closures or reduced operations of businesses, governmental agencies and other institutions, will continue to cause an economic slowdown and possibly a recession, resulting in significant disruptions in various public, commercial or industrial activities and causing employee absences which could interfere with operation and maintenance of the Company’s facilities. These circumstances have affected and will likely continue to adversely affect our operations, results of operations, financial condition and cash flows in the following ways:
Operations
We expectprovide critical services to experience regulatory lag during the period 2019 through 2021 due to the delay in general rate case filings related to the terminated Hydro One transaction and our continued investment in utility infrastructure. In April,customers. Accordingly, it is paramount that we filed general rates cases in Washingtonkeep our employees who operate our business safe so that are two-year rate plans. We filed an electric only general rate case in Idaho in June and we filed a natural gas general rate case in Oregon in March (with a settlement in Oregon reached in July 2019). We expect these casescontinue to provide rate reliefreliable service. We implemented business continuity plans in early 2020 and begin reducing the regulatory lagcontext of this global pandemic. We believe that we have been experiencing. Going forward, we will continue to strivebe able to reduce the regulatory timing lagconduct our utility operations effectively and more closely alignprovide safe and reliable service to our earned returns with those authorized by 2022. This will require adequate and timely rate relief in our jurisdictions. See "Regulatory Matters" for additional discussion of the 2019 general rate cases.customers.

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We have taken precautions concerning employee and facility hygiene, imposed travel limitations on employees and directed our employees to work remotely whenever possible. Protocols have been established and implemented to protect employees and the public when work requires public interaction. We have informed retail customers and state regulators that disconnections and late fees for non-payment are temporarily suspended.
Although we have not experienced any significant issues to date, it is possible that COVID-19 could have a negative impact on the ability of suppliers, vendors or contractors to perform, which could increase operating costs and delay and/or increase the costs of capital projects.
Results of Operations
During the three months ended March 31, 2020, we did not experience a material reduction in overall customer loads or retail revenues as the economic restrictions and closures did not take effect in our service territory until mid-March. In the month of April, there was a decrease of approximately 5 percent on overall electric load, which consisted of approximately a 12 percent decrease in commercial and a 14 percent decrease in industrial, which was partially offset by approximately a 10 percent increase in residential. In contrast, natural gas loads appear to be within normal bounds for the time of year. We expect a gradual economic recovery and prolonged high unemployment that will depress load and customer growth into 2021. We have decoupling and other regulatory mechanisms in Washington, Idaho and Oregon, which mitigate the impact of lower loads and revenues for residential and certain commercial customer classes. There are limitations on increases in decoupling surcharges in a particular year and revenue recognition criteria established by GAAP. Although we expect to ultimately recognize all decoupling revenue, there can be a delay in revenue recognition. Over 90 percent of our utility revenue is covered by regulatory mechanisms.
We have suspended customer disconnections and late fees for non-payment. In combination with the economic downturn, we increased our bad debt expense by $1.6 million in the first quarter and expect bad debt expense to increase by $3.4 million for the remainder of 2020 as compared to our original forecast. We expect to offset at least some of the negative impacts of COVID-19 at Avista Utilities with cost savings, and we have filed petitions for an accounting order in each of our jurisdictions to defer the recognition of COVID-19 expenses as well as identified cost savings of other COVID-19 related benefits.
Coronavirus Aid, Relief, and Economic Security Act (the CARES Act)
On March 27, 2020, the CARES Act, an economic stimulus package in response to COVID-19 was signed into law. The CARES Act contains corporate income tax provisions, including providing temporary changes regarding the prior and future utilization of net operating losses, temporary suspension of certain payment requirements for the employer portion of social security taxes, and the creation of certain refundable employee retention credits.

Financial Condition, Liquidity and Cash Flows
For 2020, we expect our net cash flows from operations to decrease primarily due to lower expected revenues from retail sales of electricity and natural gas and lower payments from customers.
We do not expect the impact of COVID-19 to change our estimate of utility capital expenditures for 2020. It is possible that a prolonged economic restrictions or business interruption could cause a decrease in our utility capital expenditures.
Disruptions and overall declines in the financial markets have decreased the fair value of pension plan assets and lower discount rates will increase the pension liability. This could ultimately increase future pension plan funding requirements and expenses. The impact on pension plan assets is mitigated as a significant portion of the assets are fixed-income securities with a target of 35 percent invested in equity securities.
As of March 31, 2020, we had $182.0 million of available liquidity under the Avista Corp. $400.0 million committed line of credit and $25.0 million under the AEL&P committed line of credit. As of April 30, 2020, we had $188.1 million of available liquidity under the Avista Corp. $400.0 million committed line of credit and $25.0 million under the AEL&P committed line of credit. In addition, in April 2020, we entered into a one-year credit agreement with two financial institutions in the amount of $100.0 million. We borrowed the entire $100.0 million available under this agreement, which was added to our cash reserves.
After considering the impacts of COVID-19, including the expectation of lower net operating cash flows, and the expected issuances of long-term debt and equity during 2020, we expect net cash flows from operations, together with cash available under our committed lines of credit and the $100.0 million borrowed under the new credit agreement, to provide adequate resources to fund capital expenditures, dividends, and other contractual commitments.

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However, disruption, weakness and volatility in the financial markets could increase our costs, and delay our ability, to fund capital requirements from conventional sources. To the extent that access to the capital markets is adversely affected, we may need to consider alternative sources of funding for operations and for working capital, any of which could increase our cost of capital.
In addition to any of the issues identified above, we cannot predict the duration and severity of the COVID-19 global pandemic. The longer and more severe the economic restrictions and business disruption is, the greater the impact on our operations, results of operations, financial condition and cash flows will be.
Regulatory Matters
General Rate Cases
We regularly review the need for electric and natural gas rate changes in each state in which we provide service. We expect to continue to file for rate adjustments to:
seek recovery of operating costs and capital investments, and
seek the opportunity to earn reasonable returns as allowed by regulators.
With regards to the timing and plans for future filings, the assessment of our need for rate relief and the development of rate case plans takes into consideration short-term and long-term needs, as well as specific factors that can affect the timing of rate filings. Such factors include, but are not limited to, in-service dates of major capital investments and the timing of changes in major revenue and expense items.
Avista Utilities
Washington General Rate Cases
2015 General Rate Cases
In January 2016, we received an order which was reaffirmed by the WUTC in February 2016 that concluded our electric and natural gas general rate cases that were originally filed with the WUTC in February 2015. New electric and natural gas rates were effective on January 11, 2016.
The WUTC-approved rates were designed to provide a 1.6 percent, or $8.1 million, decrease in electric base revenue and a 7.4 percent, or $10.8 million, increase in natural gas base revenue. The WUTC also approved an ROR of 7.29 percent, with a common equity ratio of 48.5 percent and a 9.5 percent ROE.PC Petition for Judicial Review
In March 2016, the Public Counsel Unit of the Washington State Office of the Attorney GeneralPC filed in Thurston County Superior Court a Petition for Judicial Review of the WUTC's orders (described above) that concluded our 2015 electric and natural gas general rate cases.Orders. In April 2016, this matter was certified for review directly by the Court of Appeals, an intermediate appellate court in the State of Washington.
On August 7, 2018, the Court of Appeals issued an Opiniona "Published Opinion" (Opinion) which concluded that the WUTC's use of an attrition allowance to calculate Avista Corp.'s rate base violated Washington law. In the Opinion, the Court stated that because the projected additions to rate base in the future were not "used and useful" for service at the time the request for the rate increase was made, they may not lawfully be included in our rate base to justify a rate increase. Accordingly, the Court concluded that the WUTC erred in including an attrition allowance in the calculation of our electric and natural gas rate base. The Court noted, however, that the law does not prohibit an attrition allowance in the calculation, for ratemaking purposes, of recoverable operating and maintenance expense. Since the WUTC order provided one lump sum attrition allowance without distinguishing what portion was for rate base and which was for operating and maintenance expenses or other considerations, the Court struck all portions of the attrition allowance attributable to Avista Corp.’sour rate base and reversed and remanded the case for the WUTC to recalculate Avista Corp.’sour rates without including an attrition allowance in the calculation of rate base.
On April 17, 2019, the Thurston County Superior Court issued a Remand Order, granting a Joint Motion of Avista Corp., PC andMarch 6, 2020, we received an order from the WUTC that will require us to remand the case backrefund $8.5 million to the WUTC. 
On June 20, 2019, Avista Corp. filed testimony with the WUTCelectric and natural gas customers. We will refund $4.9 million to electric customers and $3.6 million to natural gas customers. We previously recorded a customer refund liability of $3.6 million in the remand case. In our testimony we asserted that the potential amount to return2019. The refund will be returned to customers is limited to the 2015 general rate casesover one year and we also asserted that no refund is due to customers. Even though we believe no refund is due to customers, we cannot predict the outcome of this matter at this time. See "Note 15 of the Notes to Condensed Consolidated Financial Statements" for further discussion of this matter.began on April 1, 2020.
20172019 General Rate Cases
On April 26, 2018,March 25, 2020, we received an order from the WUTC issued a final order in our electric and natural gas general rate cases that were originallyapproved the partial multi-party settlement agreement that was filed on May 26, 2017. In the order, the WUTCNovember 21, 2019. The approved new electric rates effective on May 1, 2018, that increased base rates by 2.2 percent (designedare designed to increase annual base electric revenues by $10.8 million). The net increase in electric base rates was made up of an increase in our base revenue requirement of $23.2$28.5 million, an increase of $14.5 million in power supply costs and a decrease of $26.9 million for the impacts of the TCJA, which reflects the federal income tax rate change from 35 percent to 21or 5.7 percent, and the amortization of the regulatory liability for plant excess deferred income taxes that was recorded as of December 31, 2017. 
While the WUTC authorized an increase in the ERM baseline to reflect increased power supply costs, it directed the parties to examine the functionality and rationale of the Company's power cost modeling and adjust the baseline only in extraordinary circumstances if necessary to more closely match the baseline to actual conditions.
For natural gas, the WUTC approved newannual natural gas base rates, effective on May 1, 2018, that decreased base rates by 2.4 percent (designed to decrease natural gas revenues by $2.1 million).$8.0 million, or 8.5 percent, effective April 1, 2020. The net decrease in natural gasrevenue increases are based on a 9.4 percent return on equity with a common equity ratio of 48.5 percent and a rate of return on rate base rates was made up of an increase in base revenues7.21 percent.
As part of $3.4the WUTC order, we will return approximately $40 million from the ERM rebate to customers over a two-year period. The ERM rebate includes approximately $3 million that was offsetrecently disallowed by a decrease of $5.5 millionthe WUTC for the impacts from the TCJA, which reflects the federal income tax rate change and the amortizationcost of the regulatory liability for plant-related excess deferred income taxes that was recorded as of December 31, 2017.

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In additionreplacement power during an unplanned outage at the Colstrip generating facility in 2018. The WUTC directed us to return a larger portion of the above,ERM money during the first year to achieve a net-zero billed impact to electric customers.
Included in the WUTC also ordered, effective June 1, 2018, a one-year temporary reductionorder is the acceleration of $7.9 million in our revenue requirements for electric and $3.2 million for natural gas, reflecting reductions for the return of tax benefits associated with the non-plant excess deferred income taxes and the customer refund liability that was established in 2018 related to the change in federal income tax expense for the period January 1, 2018 to April 30, 2018.
The new rates are based on a ROR of 7.50 percent with a common equity ratio of 48.5 percent and a 9.5 percent ROE.
In our original filings, we requested three-year rate plans for electric and natural gas; however, in the final order the WUTC only provided for new rates effective on May 1, 2018.
TCJA Proceedings
In February 2019, we filed an all-party settlement agreement with the WUTC related to the electric tax benefits associated with the TCJA that were set aside for Colstrip in the 2017 general rate case order (effective May 1, 2018). In the settlement agreement, the parties agreed to utilize $10.9 million of the electric tax benefits to offset costs associated with accelerating the depreciation of Colstrip Units 3 & 4 to reflect a remaining useful life of those units through December 31, 2027. That2025. The order utilizes certain electric tax benefits associated with the 2018 tax reform to partially offset these increased costs. The order also sets aside $3 million for community transition efforts to mitigate the impacts of the eventual closure of Colstrip, half funded by customers and half funded by our shareholders. We recorded this liability and recognized the shareholder portion of the settlement agreement was denied. The WUTC has indicated that it will reviewexpense in the TCJAfirst quarter of 2020.
Lastly, the order includes the extension of electric and Colstrip in our next general rate case (which was filed on April 30, 2019).natural gas decoupling mechanisms through March 31, 2025.
20192020 General Rate Cases
On April 30, 2019, we filedWe expect to file electric and natural gas general rate cases with the WUTC in the fourth quarter of 2020.
Idaho General Rate Cases
2019 General Rate Cases
On October 11, 2019, Avista Corp. and all parties to our electric general rate case reached a settlement agreement that was approved by the IPUC. New rates went into effect on December 1, 2019.
The rates that went into effect are two-yeardesigned to decrease annual base electric revenues by $7.2 million (or 2.8 percent), effective December 1, 2019. The settlement revenue decreases are based on a 9.5 percent ROE with a common equity ratio of 50 percent and a rate plans. of return ROR on rate base of 7.35 percent, which is a continuation of current levels. This outcome is in line with our expectations.
The primary element of the difference in the agreed upon base revenues in the settlement agreement from our original request is that the settlement includes the continued recovery of costs for our wind generation power purchase agreements, which will include Palouse Wind and Rattlesnake Flat, through the PCA mechanism rather than through base rates.
2020 General Rate Cases
We have requested the followingexpect to file electric and natural gas basegeneral rate changes each year, whichcases with the IPUC in the fourth quarter of 2020.
Oregon General Rate Cases
2019 General Rate Case
On October 9, 2019, the OPUC approved the all-party settlement agreements filed in the third quarter of 2019. New rates went into effect on January 15, 2020.
OPUC approved rates that are designed to result in the following increases inincrease annual natural gas billed revenues (dollars in millions):by $3.6 million, or 4.2 percent.
  Electric Natural Gas
Effective Date Revenue
Increase
 Base
Rate Increase
 
Revenue
Increase
 
Base
Rate Increase
April 1, 2020 $45.8
 9.1% $12.9
 13.8%
April 1, 2021 $18.9
 3.5% $6.5
 6.1%
Our requests are basedThe OPUC’s decision reflects a ROR on a proposed RORrate base of 7.527.24 percent, with a common equity ratio of 50 percent and a 9.99.4 percent ROE. The WUTC has upROE, both of which represent a continuation of existing authorized levels.
In addition, the approved settlement agreements included agreement among the parties to 11 months toa future independent review of our requestinterest rate hedging practices, with any recommendations based on the results and issue a decision.
Under these rate plans, we would not file new general rate cases for new ratesfindings in the final report to be effectiveapplicable only on a prospective basis and do not apply to any prior to April 1, 2022.
The purpose of our generalinterest rate case requests is to recover costs associated with the need to replace infrastructure that has reached the end of its useful life and make technology investments required to build the integrated energy services grid.
Among the projects included in the filing are:
The upgrade of generating units and other equipment at our Little Falls Dam, which will provide more generating capacity.
Our distribution grid modernization program that rebuilds and upgrades electric feeders in the system, replacing old equipment like poles, conductor, and transformers to improve service reliability, capture energy efficiency savings and improve operational ability.
Ongoing management and replacement of electric distribution wood poles through our wood pole management program.
The ongoing project to systematically replace portions of natural gas distribution pipe in our service area that were installed prior to 1987, as well as replacement of other natural gas service equipment.
The rebuild of a high voltage transmission line, including the installation of steel poles and crossarms.
Technology upgrades that support necessary business processes and operational efficiencies.
As a part of these general rate cases, we are also seeking to extend our electric and natural gas decoupling mechanisms for an additional five years (through March 31, 2025). During the second quarter of 2019, we filed a motion to consolidate our ERM filing with our 2019 Washington general rate case and our motion was approved by the WUTC and the ERM refund will now be considered with the 2019 Washington general rate cases.hedging activity.

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Idaho2020 General Rate Cases
2017 General Rate CasesCase
On December 28, 2017, the IPUC approvedMarch 16, 2020, we filed a settlement agreement between us and other parties to our electric and natural gas general rate cases. New rates were effective on January 1, 2018 and January 1, 2019.
The settlement agreement is a two-year rate plan and hascase with the following electric andOPUC. We have requested an overall increase in base natural gas base rate changes each year, which are designedrates of 9.8 percent (designed to result in the following increases inincrease annual natural gas revenues (dollars in millions):
  Electric Natural Gas
Effective Date Revenue
Increase
 Base
Rate Increase
 
Revenue
Increase
 
Base
Rate Increase
January 1, 2018 $12.9
 5.2% $1.2
 2.9%
January 1, 2019 $4.5
 1.8% $1.1
 2.7%
The settlement agreementby $6.8 million). Our request is based on a proposed ROR of 7.617.50 percent with a common equity ratio of 50 percent and a 9.5 percent ROE.
As part of the two-year rate plan the Company will not file a new general rate case for a new rate plan to be effective prior to January 1, 2020.
TCJA Proceedings
On May 31, 2018, the IPUC approved an all-party settlement agreement related to the income tax benefits associated with the TCJA. Effective June 1, 2018, current customer rates were reduced to reflect the reduction of the federal income tax rate to 21 percent, and the amortization of the regulatory liability for plant-related excess deferred income taxes. This reduction reduces annual electric rates by $13.7 million (or 5.3 percent reduction to base rates) and natural gas rates by $2.6 million (or 6.1 percent reduction to base rates).
In March 2019, the IPUC approved an all-party settlement agreement related to the electric tax benefits that were set aside for Colstrip in the 2017 general rate case order. In the approved settlement agreement, the parties agreed to utilize approximately $6.4 million ($5.1 million when tax-effected) of the electric tax benefits to offset costs associated with accelerating the depreciation of Colstrip Units 3 & 4, to reflect a remaining useful life of those units through December 31, 2027. The remaining tax benefits of approximately $5.8 million will be returned to customers through a temporary rate reduction over a period of one year beginning on April 1, 2019. The tax benefits being utilized are related to non-plant excess deferred income taxes, and the customer refund liability that was established in 2018 related to the change in federal income tax expense for the period January 1, 2018 to May 31, 2018.
2019 General Rate Cases
On June 10, 2019, we filed an electric general rate request with the IPUC that is designed to increase annual base electric revenues by $5.3 million (or 2.1 percent). Our request is based on a proposed ROR of 7.55 percent with a common equity ratio of 50.0 percent and a 9.9 percent ROE.
The purpose of our general rate case request is to recover costs associated with the need to replace infrastructure that has reached the end of its useful life and to make technology investments required to build an integrated energy services grid.
Among the projects included in the filing are:
The upgrade of generating units and other equipment at our Little Falls Dam, which will provide more generating capacity.
Our distribution grid modernization program that rebuilds and upgrades electric feeders in the system, replacing old equipment such as poles, conductor, and transformers to improve service reliability, capture energy efficiency savings and improve operational ability.
Ongoing management and replacement of electric distribution wood poles through our wood pole management program.
The rebuild of substations that have reached the end of their useful life or have reached full capacity.
Technology upgrades that will support necessary business processes and operational efficiencies.
The IPUC has up to nine months to review the general rate case filings and issue a decision.

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Oregon General Rate Cases
2019 General Rate Case
In July 2019, Avista Corp. and all of the parties to our natural gas general rate case filing reached agreement on certain issues, and a partial settlement agreement has been filed with the OPUC for its consideration. The partial settlement includes agreement among the parties on the cost of capital and certain smaller adjustments related to employee benefits and other expenses. In addition, the parties agreed to a future independent review of interest rate hedging practices, with any recommendations based on the results and findings in the final report to be applicable only on a prospective basis and to not apply to any prior interest rate hedging activity. The agreed-upon ROR is 7.24 percent, with a common equity ratio of 50 percent and a 9.4 percent ROE, both of which represent a continuation of existing authorized levels.
The agreement on the elements in the partial settlement results in a reduction in our originally filed revenue increase request from $6.7 million to $5.4 million.
On July 26, 2019, we filed a Motion to Suspend Portions of the Procedural Schedule, noticing the OPUC that all parties in the general rate case have reached a settlement-in-principle resolving all remaining issues in the case. The parties committed to filing the settlement stipulation, supporting testimony, and other documents no later than August 14, 2019.
TCJA Proceedings
In February 2019, the OPUC approved the deferral amount of $3.8 million related to 2018 income tax benefits associated with the TCJA. The 2018 deferred benefits will be returned to customers through a temporary rate reduction over a period of one year beginning March 1, 2019. We will continue the deferral of the TCJA benefits during 2019 for later return to customers, until such time as these changes can be reflected in base rates.
Petition for Judicial Review of the Deferral of Capital Projects
In February 2019 and October 2018, the OPUC issued orders which concluded that, contrary to the OPUC's past practice, Oregon statutes that authorize the deferral of expense for later recovery from customers do not authorize the OPUC to allow deferrals of any costs related to capital investments (utility plant). In April 2019, Avista Corp. and other petitioners filed a Petition for Judicial Review with the Oregon Court of Appeals seeking review of the above OPUC orders. The Company cannot predictOPUC, on April 6, 2020, rescinded its prior orders that were the outcome of this matter at this time, including whether or not any decisionsubject of the court wouldappeal, and issued a proposed order meant to replace the orders on appeal. The affected utilities, including Avista Corp., have retroactive effect.advised the OPUC that they do not take exceptions to the proposed order, which reinstates the OPUC’s general authority to approve full revenue requirement deferrals, including a return of and on investment. If the proposed order becomes final, and no party seeks review of the revised order, the Court of Appeals will dismiss the appeal.
AMI Project
In March 2016, the WUTC granted our Petition for an Accounting Order to defer and include in a regulatory asset the undepreciated value of our existing Washington electric meters for the opportunity for later recovery. This accounting treatment is related to our plans to replace our existing electric meters with new two-way digital meters and the related software and support services through our AMI project in Washington State. As of June 30, 2019,March 31, 2020, the estimated future undepreciated value for the existing electric meters was $21.0$22.6 million. In September 2017, the WUTC also approved our request to defer the undepreciated net book value of existing natural gas encoder receiver transmitters (ERT) (consistent with the accounting treatment we obtained on our existing electric meters) that will be retired as part of the AMI project. As of June 30, 2019,March 31, 2020, the estimated future undepreciated value for the existing natural gas ERTs was $4.2$3.3 million. Replacement of the electric meters and natural gas ERTs began during the second half of 2018 and is ongoing.
In September 2017, the WUTC approved a Petition to defer the depreciation expense associated with the AMI project, along with a carrying charge, and to seek recovery of the deferral and carrying charge in a future general rate case. Cost savings, such as reduced meter reading costs, will occur during the implementation period, and will offset a portion of the AMI costs not being deferred.
In May 2017, we filed Petitions with the IPUC and the OPUC requesting a depreciable life of 12.5 years for the meter data management system (MDM) related to the AMI project. Both the IPUC and the OPUC approved our request. In addition, in connection with the 2017 Idaho electric general rate case, (discussed above), the settling parties agreed to cost recovery of Idaho's share of the MDM system, effective January 1, 2019. In connection with the approval of the Oregon general rate case settlement, (discussed above), the OPUC approved cost recovery of Oregon's share of the MDM system, effective November 1, 2017.
Avista Utilities
Purchased Gas Adjustments
PGAs are designed to pass through changes in natural gas costs to Avista Utilities' customers with no change in utility margin (operating revenues less resource costs) or net income. In Oregon, we absorb (cost or benefit) 10 percent of the difference between actual and projected natural gas costs included in retail rates for supply that is not hedged. Total net deferred natural

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gas costs among all jurisdictions were an asset of $2.5 million ($4.3 million in assets and $1.9 million in liabilities) as of June 30, 2019 and a liability of $40.7$5.4 million as of March 31, 2020 and a net liability of $3.2 million as of December 31, 2018. The liability decreased from the prior year primarily due to higher natural gas prices in 2019 as compared to the current year PGA rates.2019.
Power Cost Deferrals and Recovery Mechanisms
The ERM is an accounting method used to track certain differences between Avista Utilities' actual power supply costs, net of wholesale sales and sales of fuel, and the amount included in base retail rates for our Washington customers. Under the ERM, Avista Utilities makes an annual filing on or before April 1 of each year to provide the opportunity for the WUTC staff and other interested parties to review the prudence of and audit the ERM deferred power cost transactions for the prior calendar year. See the 20182019 Form 10-K for a full discussion of the mechanics of the ERM and the various sharing bands. Total net deferred power costs under the ERM were a liability of $35.2$44.1 million as of June 30, 2019,March 31, 2020, compared to a liability of $34.4$37.0 million as of December 31, 2018.2019. These deferred power cost balances represent amounts due to customers. Pursuant to WUTC requirements, should the cumulative deferral balance exceed $30 million in the rebate or surcharge direction, we must make a filing with the WUTC to adjust customer rates to either return the balance to customers or recover the balance from customers.

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The cumulative rebate balance exceeds $30 million and as a result, our 2019 filing contained a proposed rate refund, effective July 1, 2019 over a three-year period. During the second quarter of 2019 we filed a motion to consolidate thisrefund. The ERM filingproceeding was considered with our 2019 Washington general rate case (which was filed on April 30, 2019). In our motion, we requested that the WUTC withhold the refund associated with the ERM for use in the 2019 general rate case rather than passing it backproceeding and a refund was approved and will be returned to customers over the three-year period that was proposeda two-year period. See further discussion in the ERM filing. Our motion was approved by the WUTC and the ERM refund will now be considered with the 2019 Washington general rate cases.section "Washington General Rate Cases" above.
Avista Utilities has a PCA mechanism in Idaho that allows us to modify electric rates on October 1 of each year with IPUC approval. Under the PCA mechanism, we defer 90 percent of the difference between certain actual net power supply expenses and the amount included in base retail rates for our Idaho customers. The October 1 rate adjustments recover or rebate power supply costs deferred during the preceding July-June twelve-month period. Total net power supply costs deferred under the PCA mechanism were a liabilityassets of $4.1$0.1 million as of June 30, 2019, compared to a liability of $7.6March 31, 2020 and $0.3 million as of December 31, 2018.2019. These deferred power cost balances represent amounts due tofrom customers.
Decoupling and Earnings Sharing Mechanisms
Decoupling (also known as a FCA in Idaho) is a mechanism designed to sever the link between a utility's revenues and consumers' energy usage. In each of our jurisdictions, Avista Utilities' electric and natural gas revenues are adjusted so as to be based on the number of customers in certain customer rate classes and assumed "normal" kilowatt hour and therm sales, rather than being based on actual kilowatt hour and therm sales. The difference between revenues based on the number of customers and "normal" sales and revenues based on actual usage is deferred and either surcharged or rebated to customers beginning in the following year. Only residential and certain commercial customer classes are included in our decoupling mechanisms. See the 20182019 Form 10-K for a discussion of the mechanisms in each jurisdiction.
Total net cumulative decoupling deferrals among all jurisdictions were regulatory assets of $19.4$20.1 million as of June 30, 2019March 31, 2020 and $13.9$24.3 million as of December 31, 2018.2019. These decoupling assets represent amounts due from customers. Total net earnings sharing balances among all jurisdictions were regulatory liabilities of $0.9$0.7 million as of June 30, 2019March 31, 2020 and $1.5 million as of December 31, 2018.2019. These earnings sharing liabilities represent amounts due to customers.
See "Results of Operations - Avista Utilities" for further discussion of the amounts recorded to operating revenues in 20192020 and 20182019 related to the decoupling and earnings sharing mechanisms.
COVID-19
In March 2020, we filed an application for authorization to defer certain incremental COVID-19 related costs with the OPUC. In April and May 2020, we made similar filings with the IPUC and the WUTC, respectively. In Alaska, a Senate Bill was signed into law that provides for deferral and recovery of incremental COVID-19 related costs subject to approval by the RCA. The recovery of any deferred costs would be determined in future rate making proceedings.
Results of Operations - Overall
The following provides an overview of changes in our Condensed Consolidated Statements of Income. More detailed explanations are provided, particularly for operating revenues and operating expenses, in the business segment discussions (Avista Utilities, AEL&P, and the other businesses) that follow this section.
The balances included below for utility operations reconcile to the Condensed Consolidated Statements of Income.

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Three months ended June 30, 2019March 31, 2020 compared to the three months ended June 30, 2018March 31, 2019
The following graph shows the total change in net income attributable to Avista Corp. shareholders for the secondfirst quarter of 20182019 to the secondfirst quarter of 2019,2020, as well as the various factors that caused such change (dollars in millions):
secrooq22019a01.jpg
qtdnetincomechangeq12020a02.jpg
Utility revenues decreasedremained consistent at both Avista Utilities when compared to the first quarter of 2019. The outcome from the 2015 Washington general rate cases decreased revenue by $4.9 million. In addition, residential and AEL&P. Avista Utilities' revenues decreased primarily from a decrease in retail electric and natural gas revenues (primarily from a decrease in decoupling rates and PGA rates, which are included in rates billed to retail customers), as well as a decrease in salescommercial load was lower than the first quarter of fuel. These2019. The above decreases were partially offset by an increase from electric and natural gas decoupling general rate increasesrates, higher PGA rates and customer growth. AEL&P's revenues decreased due to a decrease in retail rates associated with the federal income tax law change, as well as a decreaseincreased from an increase in sales volumes due to weather that was warmer than normal and warmercooler than the prior year.
Non-utility revenues decreased due to the sale of METALfx, which occurred in April 2019.
Utility resource costs decreased at both Avista Utilities and AEL&P. The decrease at Avista Utilities was primarily from a decrease in net power supply costs (resource costs less wholesale revenues) due to lower purchased power pricesfuel for generation and other fuel costs, as well as lower natural gas fuel prices.purchases. The decreaseincrease at AEL&P was due to a decreasean increase in deferred power supply expenses, as well as the adoption of the new lease standard on January 1, 2019, which resulted in the reclassification of Snettisham power purchase costs from resource costs to depreciation and amortization and interest expense in 2019. See "Notes 2 and 5 of the Notes to Condensed Consolidated Financial Statements" for further information regarding the adoption of the new lease standard.expenses.
The increase in utility other operating expenses was due to an increase at Avista Utilities. The increase at Avista Utilities was the result of a $7.0 million donation commitment madeprimarily related to fund initiatives to strengthen our local communities, which was recorded in the second quarter 2019. Also, there was an increaseincreases in generation transmission and distribution operating and maintenance costs.costs, an accrual for disallowed replacement power during an unplanned outage at Colstrip (see "Regulatory Matters"), and an increase in bad debt expense.
The merger transaction costs are related to the terminatedproposed (now terminated) acquisition by Hydro One acquisition. TheseOne. There were no additional costs decreased for the second quarter of 2019 because there were very few activities relatedin 2020 relating to the terminated merger during the second quarter of 2019 other than final wrap-up of the transaction. None of the acquisition costs are being passed through to customers.this matter.
Utility depreciation and amortization increased due to additions to utility plant and from a March 2019 settlement in Idaho, which allowed usplant.
The merger termination fee was related to utilize approximately $6.4 million ($5.1 million when tax-effected)the termination of the electric tax benefits to offset costs associated with accelerating the depreciation of Colstrip Units 3 & 4, to reflect a remaining useful life of those units through December 31, 2027. This amount was recorded as a one-time charge to depreciation expense in the second quarter of 2019, with an offsetting amount included in income tax expense.proposed Hydro One acquisition.
The increase in other income was primarily related to the gain ona decrease in non-utility other operating expenses due to the sale of METALfx during the second quarter of 2019. See "Note 182019 and also due to lower property taxes. In addition, there was a gain from the sale of an equity investment in the Notes to Condensed Consolidated Financial Statements" for further detailsfirst quarter of the sales transaction.2020.
Income taxes decreased primarily due to the settlement agreementa decrease in Idaho related to Colstrip depreciation and the usage of electric tax benefits to offset the accelerated depreciation.income before taxes. Our effective tax rate was negative 7.515.0 percent for the secondfirst quarter of 20192020 compared to 16.920.6 percent for the second quarter of 2018. We expect our full year 2019 effective tax rate to be

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approximately 16 percent to 17 percent. See "Note 8 of the Notes to Condensed Consolidated Financial Statements" for further details and a reconciliation of our effective tax rate.
Six months ended June 30, 2019 compared to the six months ended June 30, 2018
The following graph shows the total change in net income attributable to Avista Corp. shareholders for the six months ended June 30, 2018 to the six months ended June 30, 2019, as well as the various factors that caused such change (dollars in millions):
secrooq22019ytda01.jpg
Utility revenues decreased at both Avista Utilities and AEL&P. Avista Utilities' revenues decreased primarily from a decrease in wholesale electric revenues (mostly a decrease in volumes), as well as a decrease in sales of fuel. These items decreased due to lower than normal hydroelectric generation, which resulted in less optimization of the system. These decreases were partially offset by general rate increases and customer growth. AEL&P's revenues decreased due to a decrease in retail rates associated with the federal income tax law change, as well as a decrease in sales volumes due to weather that was warmer than normal and warmer than the prior year.
Utility resource costs decreased at both Avista Utilities and AEL&P. The decrease at Avista Utilities was primarily from a decrease in net power supply costs (resource costs less wholesale revenues) due to lower purchased power prices, partially offset by an increase in natural gas resource costs. The decrease at AEL&P was due to a decrease in deferred power supply expenses, as well as the adoption of the new lease standard on January 1, 2019. See "Notes 2 and 5 of the Notes to Condensed Consolidated Financial Statements" for further information regarding the adoption of the new lease standard.
The increase in utility other operating expenses was due to an increase at Avista Utilities and a slight increase at AEL&P. The increase at Avista Utilities was the result of the donation commitment described above, which was recorded in the second quarter 2019. Also, there was an increase in generation, transmission and distribution operating and maintenance costs.
The merger transaction costs are related to the terminated Hydro One acquisition. These costs increased for the year-to-date 2019 because 2019 includes financial advisers' fees, legal fees, consulting fees and employee time, whereas the second quarter of 2018 consisted primarily of employee time incurred directly related to the transaction. None of the acquisition costs are being passed through to customers.
Utility depreciation and amortization increased mainly due to the settlement in Idaho described above, as well as additions to utility plant.
The merger termination fee was received from Hydro One due to the mutual agreement to terminate the proposed acquisition. See "Note 17 of the Notes to Condensed Consolidated Financial Statements" for additional discussion.
The increase in other was primarily related to the gain on the sale of METALfx during the secondfirst quarter of 2019. Also, 2018 included an impairment of an investment and additional charges associated with a renovation, whereas 2019 included earnings from our investments. See "Note 18 of the Notes to Condensed Consolidated Financial Statements" for further details of the sales transaction.
Income taxes decreased primarily due to the settlement agreement in Idaho related to Colstrip depreciation. Our effective tax rate was 16.7 percent for 2019, compared to 16.5 percent for 2018. We expect our full year 2019 effective tax rate to be

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approximately 16 percent to 17 percent. See "Note 87 of the Notes to Condensed Consolidated Financial Statements" for further details and a reconciliation of our effective tax rate.
Non-GAAP Financial Measures
The following discussion for Avista Utilities includes two financial measures that are considered “non-GAAP financial measures”: electric utility margin and natural gas utility margin. In the AEL&P section, we include a discussion of utility margin, which is also a non-GAAP financial measure.

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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 (excluded) in the most directly comparable measure calculated and presented in accordance with GAAP. Electric utility margin is electric operating revenues less electric resource costs, while natural gas utility margin is natural gas operating revenues less natural gas resource costs. The most directly comparable GAAP financial measure to electric and natural gas utility margin is utility operating revenues as presented in "Note 16 of the Notes to Condensed Consolidated Financial Statements."
The presentation of electric utility margin and natural gas utility margin is intended to enhance the understanding of operating performance. We use these measures internally and believe they provide useful information to investors in their analysis of how changes in loads (due to weather, economic or other conditions), rates, supply costs and other factors impact our results of operations. Changes in loads, as well as power and natural gas supply costs, are generally deferred and recovered from customers through regulatory accounting mechanisms. Accordingly, the analysis of utility margin generally excludes most of the change in revenue resulting from these regulatory mechanisms. We present electric and natural gas utility margin separately below for Avista Utilities since each business has different cost sources, cost recovery mechanisms and jurisdictions, so we believe that separate analysis is beneficial. These measures are not intended to replace utility operating revenues as determined in accordance with GAAP as an indicator of operating performance. Reconciliations of operating revenues to utility margin are set forth below.
Results of Operations - Avista Utilities
Three months ended June 30, 2019March 31, 2020 compared to the three months ended June 30, 2018March 31, 2019
Utility Operating Revenues
The following graphs present Avista Utilities' electric operating revenues and megawatt-hour (MWh) sales for the three months ended June 30March 31 (dollars in millions and MWhs in thousands):
chart-340cad7ec2565a9b89d.jpgchart-4391ff24fdbf572b8d0.jpg
(1)This balance includes public street and highway lighting, which is considered part of retail electric revenues, and deferrals/amortizations to customers related to federal income tax law changes.
Total electric operating revenues in the graph above include intracompany sales of $6.0$6.1 million and $2.0$19.7 million for the three months ended June 30,March 31, 2020 and March 31, 2019, and June 30, 2018, respectively.


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chart-0081a9d3451e58e48ce.jpgchart-09ce99decbcc53c491e.jpg
The following table presents the current year deferrals and the amortization of prior year decoupling balances that are reflected in utility electric operating revenues for the three months ended June 30March 31 (dollars in thousands):
Electric Decoupling
Revenues
Electric Decoupling
Revenues
2019 20182020 2019
Current year decoupling deferrals (a)$5,159
 $6,274
$5,131
 $(2,681)
Amortization of prior year decoupling deferrals (b)533
 (3,396)(4,608) 1,076
Total electric decoupling revenue$5,692
 $2,878
$523
 $(1,605)
(a)Positive amounts are increases in decoupling revenue in the current year and will be surcharged to customers in future years. Negative numbersamounts are decreases in decoupling revenue in the current year and will be rebated to customers in future years.
(b)Positive amounts are increases in decoupling revenue in the current year and are related to the amortization of rebate balances that resulted in prior years and are being refunded to customers (causing a corresponding decrease in retail revenue from customers) in the current year. Negative numbersamounts are decreases in decoupling revenue in the current year and are related to the amortization of surcharge balances that resulted in prior years and are being surcharged to customers (causing a corresponding increase in retail revenue from customers) in the current year.
Total electric revenues decreased $6.0$10.3 million for the secondfirst quarter of 20192020 as compared to the secondfirst quarter of 20182019 primarily due to the following:
aan $3.88.5 million decrease in retail electric revenue due to a decrease in total MWhs sold (decreased revenues $0.5$10.6 million) and a decrease, partially offset by an increase in revenue per MWh (decreased(increased revenues $3.3$2.1 million).
The slight decrease in total retail MWhs sold was primarily the result of a decrease in residential, commercial and industrial sales volumes due to weather that was warmer than normal and warmer than the prior year. These were partially offset by an increase in residential sales volumes and commercial customer growth. Compared to the secondfirst quarter of 2018,2019, residential electric use per customer increased 2decreased 9 percent and commercial use per customer decreased 12 percent. Heating degree days in Spokane were 237 percent below normal and consistent with17 percent below the secondfirst quarter of 2018. Cooling degree days in Spokane were 42 percent above normal and 62 percent above the second quarter of 2018.2019.
The decreaseincrease in revenue per MWh was primarily due to a decreasean increase in decoupling rates (as ourthere was a decoupling surcharges were largersurcharge in prior years, which resulted in higher surcharge rates in 2018 as2020 compared to rebatesa decoupling rebate in 2019) and decreases associated with the lower corporate tax rate.. This was partially offset by a general rate increasesdecrease in Washington (effective MayIdaho, effective December 1, 2018)2019.
a $6.4 million increase in wholesale electric revenues due to an increase in sales prices (increased revenues $5.5 million) and Idaho (effective January 1, 2019)an increase in sales volumes (increased revenues $0.9 million). The fluctuation in volumes and prices was

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primarily the result of our optimization activities.
a $1.9 million increase in wholesale electric revenues due to an increase in sales prices (increased revenues $6.4 million), partially offset by a decrease in sales volumes (decreased revenues $4.5 million). The fluctuation in volumes and prices was primarily the result of our optimization activities.
a $9.77.7 million decrease in sales of fuel due to a decrease in sales of natural gas fuel as part of thermal generation resource optimization activities.
a $2.82.1 million increase in electric decoupling revenue. Weather was warmer than normal in the secondfirst quarter of 2019,2020, reducing the demand for electric heating, which resultedresulting in decoupling deferral surcharges related to the current year. There was also the amortization of decoupling rebatessurcharges from prior years.
the $2.72.8 million increasedecrease in other electric revenues was primarily related to federal incomea $1.4 million accrual for customer refunds related to our 2015 Washington general rate case that was remanded back to the WUTC during 2019. See "Regulatory Matters" for further discussion. In addition, there was a $1.1 million decrease in tax law changes that loweredreform amortization associated with the corporate2018 federal tax rate from 35 percent to 21 percent. As our customers' rates had the 35 percent corporate tax rate built in from prior general rate cases, we deferred the impact of the change in the first quarter of 2018. Effective May 1, 2018 in Washington and June 1, 2018 in Idaho, base rates reflect the lower 21 percent corporate tax.change.
The following graphs present Avista Utilities' natural gas operating revenues and therms delivered for the three months ended June 30March 31 (dollars in millions and therms in thousands):
chart-ff67231a2c965f1eba9.jpgchart-4e6c4308cdf35f45a13.jpg
(1)This balance includes interruptible and industrial revenues, which are considered part of retail natural gas revenues, and deferrals/amortizations to customers related to federal income tax law changes.
Total natural gas operating revenues in the graph above include intracompany sales of $6.5$12.8 million and $7.3$23.7 million for the three months ended June 30,March 31, 2020 and March 31, 2019, and June 30, 2018, respectively.


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chart-5026d39997545d8db33.jpgchart-bc56816dc0465025904.jpg
The following table presents the current year deferrals and the amortization of prior year decoupling balances that are reflected in utility natural gas operating revenues for the three months ended June 30March 31 (dollars in thousands):
Natural Gas Decoupling
Revenues
Natural Gas Decoupling
Revenues
2019 20182020 2019
Current year decoupling deferrals (a)$3,138
 $2,458
$(3,556) $(6,106)
Amortization of prior year decoupling deferrals (b)895
 (1,767)(1,380) 3,053
Total natural gas decoupling revenue$4,033
 $691
$(4,936) $(3,053)
(a)Positive amounts are increases in decoupling revenue in the current year and will be surcharged to customers in future years. Negative numbersamounts are decreases in decoupling revenue in the current year and will be rebated to customers in future years.
(b)Positive amounts are increases in decoupling revenue in the current year and are related to the amortization of rebate balances that resulted in prior years and are being refunded to customers (causing a corresponding decrease in retail revenue from customers) in the current year. Negative numbersamounts are decreases in decoupling revenue in the current year and are related to the amortization of surcharge balances that resulted in prior years and are being surcharged to customers (causing a corresponding increase in retail revenue from customers) in the current year.
Total natural gas revenues decreased $3.2$14.7 million for the secondfirst quarter of 20192020 as compared to the secondfirst quarter of 20182019 primarily due to the following:
a $4.1$10.2 million decreaseincrease in natural gas retail revenues due to loweran increase in retail rates (decreased(increased revenues $4.9$22.1 million), partially offset by an increasea decrease in volumes (increased(decreased revenues $0.8$11.9 million).
Retail rates increased from higher PGAs, decoupling rate increases and a general rate increase in Oregon, effective January 15, 2020.
We sold more retailRetail natural gas sales decreased in the secondfirst quarter of 2020 as compared to the first quarter of 2019 as compared to the second quarter of 2018primarily due to lower residential, commercial and industrial usage, partially offset by customer growth as use per customer decreased slightly due to warmer weather.growth. Compared to secondfirst quarter of 2018,2019, residential use per customer decreased 212 percent and commercial use per customer decreased 110 percent. Heating degree days in Spokane were 237 percent below normal, and consistent with17 percent below the secondfirst quarter of 2018.2019. Heating degree days in Medford were 244 percent belowabove normal, and 13 percent below the secondfirst quarter of 2018.2019.
Lower retail rates were due to PGAs and rate decreases associated with the lower corporate tax rate and decoupling rate decreases (as our decoupling surcharges were larger in prior years, which resulted in higher surcharge rates in 2018 as compared to rebates in 2019), partially offset by general rate increases in Washington (effective May 1, 2018) and Idaho (effective January 1, 2019).

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a $2.220.0 million decrease in wholesale natural gas revenues due to a decrease in prices (decreased revenues $6.7$22.7 million), partially offset by an increase in volumes (increased revenues $4.5$2.7 million). Differences between revenues and costs from sales of resources in excess of retail load requirements and from resource optimization are accounted for through the PGA mechanisms.
a $3.4 million increase in natural gas decoupling revenue. Weather was warmer than normal in the second quarter of 2019, reducing the demand for natural gas heating, which resulted in decoupling deferral surcharges related to the current year. There was also the amortization of decoupling rebates from prior years.
The following table presents Avista Utilities' average number of electric and natural gas retail customers for the three months ended June 30:
 
Electric
Customers
 
Natural Gas
Customers
 2019 2018 2019 2018
Residential344,342
 339,010
 321,136
 313,782
Commercial42,922
 42,539
 35,835
 35,480
Interruptible
 
 48
 39
Industrial1,307
 1,312
 241
 246
Public street and highway lighting606
 594
 
 
Total retail customers389,177
 383,455
 357,260
 349,547
Utility Resource Costs
The following graphs present Avista Utilities' resource costs for the three months ended June 30 (dollars in millions):
chart-52a02a6f303f5af38a6.jpg
Total electric resource costs in the graph above include intracompany resource costs of $6.5 million and $7.3 million for the three months ended June 30, 2019 and June 30, 2018, respectively.

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chart-da104efad3aa5355b5e.jpgand costs from sales of resources in excess of retail load requirements and from resource optimization are accounted for through the PGA mechanisms.
the $2.5 million decrease in other natural gas revenues was primarily related to a $3.6 million accrual for customer refunds related to our 2015 Washington general rate case that was remanded back to the WUTC during 2019. See "Regulatory Matters" for further discussion. This was partially offset by a decrease of $1.4 million in the provision for tax rate refunds associated with the federal income tax law change in 2018.
The following table presents Avista Utilities' average number of electric and natural gas retail customers for the three months ended March 31:
 
Electric
Customers
 
Natural Gas
Customers
 2020 2019 2020 2019
Residential349,368
 343,938
 326,126
 319,483
Commercial43,300
 42,874
 36,194
 35,707
Interruptible
 
 43
 42
Industrial1,295
 1,314
 241
 239
Public street and highway lighting638
 601
 
 
Total retail customers394,601
 388,727
 362,604
 355,471
Utility Resource Costs
The following graphs present Avista Utilities' resource costs for the three months ended March 31 (dollars in millions):
chart-bc9eec61457552bb946.jpg
Total natural gaselectric resource costs in the graph above include intracompany resource costs of $6.0$12.8 million and $2.0$23.7 million for the three months ended June 30,March 31, 2020 and March 31, 2019, and June 30, 2018, respectively.
Total electric resource costs decreased $10.2$18.3 million for the secondfirst quarter of 20192020 as compared to the secondfirst quarter of 20182019 primarily due to the following:
a $3.7$4.2 million increasedecrease in purchased power costspurchased due to an increase in wholesale prices (increased costs $8.0 million), partially offset by a decrease in the volume of power purchases (decreased costs $4.3$5.7 million), partially offset by an increase in wholesale prices (increased costs $1.5 million). The fluctuation in volumes and prices was primarily the result of our optimization activities during the quarter.
aan $0.78.8 million decrease in fuel for generation primarily duerelated to a slight decrease in thermalnatural gas prices, a decrease in customer volumes sold and an increase in hydroelectric generation volumes.as compared to the first quarter of 2019.
an $8.3a $6.3 million decrease in other fuel costs. This represents fuel and the related derivative instruments that were purchased for generation but were later sold when conditions indicated that it was more economical to sell the fuel as part of the resource optimization process. When the fuel or related derivative instruments are sold, that revenue is included in sales of fuel.
a $6.2 million decrease from net amortizations and deferrals of power costs.
a $1.2 million net increase from other regulatory amortizations and other electric resource costs.
Total natural gas resource costs decreased $1.0 million for the second quarter of 2019 as compared to the second quarter of 2018 primarily due to the following:
a $0.3 million decrease in natural gas purchased due to a decrease in the price of natural gas (decreased costs $5.9 million), partially offset by an increase in total therms purchased (increased costs $5.6 million).
a $1.1 million decrease from net amortizations and deferrals of natural gas costs.
a $0.4 million increase from other regulatory amortizations.

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part of the resource optimization process. When the fuel or related derivative instruments are sold, that revenue is included in sales of fuel.

chart-2ace4bc56900566e8e1.jpg
Total natural gas resource costs in the graph above include intracompany resource costs of $6.1 million and $19.7 million for the three months ended March 31, 2020 and March 31, 2019, respectively.
Total natural gas resource costs decreased $15.3 million for the first quarter of 2020 as compared to the first quarter of 2019 primarily due to the following:
a $59.4 million decrease in natural gas purchased due to a decrease in the price of natural gas (decreased costs $59.4 million).
a $44.6 million increase from net amortizations and deferrals of natural gas costs, primarily due to a spike in natural gas prices during the first quarter of 2019 from a natural gas supply disruption in Canada, which resulted in significant amount of PGA deferrals during that period.
Utility Margin
The following table reconciles Avista Utilities' operating revenues, as presented in "Note 16 of the Notes to Condensed Consolidated Financial Statements" to the Non-GAAP financial measure utility margin for the three months ended June 30March 31 (dollars in thousands):
Electric Natural Gas Intracompany TotalElectric Natural Gas Intracompany Total
2019 2018 2019 2018 2019 2018 2019 20182020 2019 2020 2019 2020 2019 2020 2019
Operating revenues$229,591
 $235,558
 $72,766
 $75,946
 $(12,549) $(9,282) $289,808
 $302,222
$246,208
 $256,467
 $149,950
 $164,677
 $(18,953) $(43,442) $377,205
 $377,702
Resource costs65,564
 75,766
 35,491
 36,538
 (12,549) (9,282) 88,506
 103,022
75,531
 93,881
 72,979
 88,273
 (18,953) (43,442) 129,557
 138,712
Utility margin$164,027
 $159,792
 $37,275
 $39,408
 $
 $
 $201,302
 $199,200
$170,677
 $162,586
 $76,971
 $76,404
 $
 $
 $247,648
 $238,990
Electric utility margin increased $4.2$8.1 million and natural gas utility margin decreased $2.1increased $0.6 million.
Electric utility margin increased primarily due to a decrease in net power supply costs. The decrease in net power supply costs was due to lower purchased power purchase prices and natural gasthermal fuel prices.costs that were lower than those recovered through our rates (authorized costs). For the secondfirst quarter of 2019,2020, we had a $6.0$5.2 million pre-tax benefit under the ERM in Washington, compared to a $1.0$2.5 million pre-tax benefitexpense for the secondfirst quarter of 2018.2019. For the full year of 2019,2020, we expect to be in a benefit position under the ERM within the 7590 percent customer/2510 percent Company sharing band.
Electric utility margin was also positively impacted by general rate increases in Washington (effective May 1, 2018) and Idaho (effective January 1, 2019), and customer growth.
Natural gas utility margin benefited in the second quarter of 2018 from the implementation of new base rates implemented on May 1, 2018 in Washington and June 1, 2018 in Idaho to reflect the lower 21 percent corporate tax rate. During the first quarter of 2018, we estimated the impact of the change in the base rates. This estimate was reduced in the second quarter of 2018 based on commission orders.
Offsetting the impact of changes in the corporate tax rate, natural gas In addition, electric utility margin was positively impacted by customer growth. The above increases were partially offset by an accrual for customer refunds of $1.4 million related to our 2015 Washington general rate increases in Washington (effective May 1, 2018) and Idaho (effective January 1, 2019), and customer growth.
Intracompany revenues and resource costs represent purchases and sales of natural gas between our natural gas distribution operations and our electric generation operations (as fuelcase that was remanded back to the WUTC during 2019. See "Regulatory Matters" for our generation plants). These transactions are eliminated in the presentation of total results for Avista Utilities and in the condensed consolidated financial statements but are included in the separate results for electric and natural gas presented above.further discussion.

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Six months ended June 30, 2019 compared to the six months ended June 30, 2018
Utility Operating Revenues
The following graphs present Avista Utilities' electric operating revenues and megawatt-hour (MWh) sales for the six months ended June 30 (dollars in millions and MWhs in thousands):
chart-92db0772db0d7dccdba.jpg
(1)This balance includes public street and highway lighting, which is considered part of retail electric revenues, and deferrals/amortizations to customers related to federal income tax law changes.
Total electric operating revenues in the graph above include intracompany sales of $25.7 million and $8.9 million for the six months ended June 30, 2019 and June 30, 2018, respectively.
chart-1952289ce08bd82ea50.jpg

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The following table presents the current year deferrals and the amortization of prior year decoupling balances that are reflected in utility electric operating revenues for the six months ended June 30 (dollars in thousands):
 Electric Decoupling
Revenues
 2019 2018
Current year decoupling deferrals (a)$2,478
 $10,286
Amortization of prior year decoupling deferrals (b)1,609
 (8,276)
Total electric decoupling revenue$4,087
 $2,010
(a)Positive amounts are increases in decoupling revenue in the current year and will be surcharged to customers in future years. Negative numbers are decreases in decoupling revenue in the current year and will be rebated to customers in future years.
(b)Positive amounts are increases in decoupling revenue in the current year and are related to the amortization of rebate balances that resulted in prior years and are being refunded to customers (causing a corresponding decrease in retail revenue from customers) in the current year. Negative numbers are decreases in decoupling revenue in the current year and are related to the amortization of surcharge balances that resulted in prior years and are being surcharged to customers (causing a corresponding increase in retail revenue from customers) in the current year.
Total electric revenues decreased $12.0 million for the six months ended June 30, 2019 as compared to the six months ended June 30, 2018 primarily due to the following:
a $2.6 million decrease in retail electric revenue due to a decrease in revenue per MWh (decreased revenues $10.1 million), partially offset by an increase in total MWhs sold (increased revenues $7.5 million).
The decrease in revenue per MWh was primarily due to a decrease in decoupling rates (as our decoupling surcharges were larger in prior years, which resulted in higher surcharge rates in 2018 as compared to rebates in 2019) and decreases associated with the lower corporate tax rate. This was partially offset by general rate increases in Washington (effective May 1, 2018) and Idaho (effective January 1, 2019).
The increase in total retail MWhs sold was the result of weather that was cooler than the prior year during the first quarter heating season (which increased electric heating loads), and customer growth. Compared to the six months ended June 30, 2018, residential electric use per customer increased 3 percent and commercial use per customer was relatively consistent. Heating degree days in Spokane were 4 percent above normal and 13 percent above the first six months of 2018. Year-to-date 2019 cooling degree days were 42 percent above normal and 62 percent above the prior year.
a $17.3 million decrease in wholesale electric revenues due to a decrease in sales volumes (decreased revenues $21.4 million), partially offset by an increase in sales prices (increased revenues $4.1 million). The fluctuation in volumes and prices was primarily the result of our optimization activities.
a $10.9 million decrease in sales of fuel due to a decrease in sales of natural gas fuel as part of thermal generation resource optimization activities.
a $2.1 million increase in electric revenue due to decoupling.
the $16.9 million increase in other electric revenues was primarily related to federal income tax law changes that lowered the corporate tax rate from 35 percent to 21 percent. As our customers' rates had the 35 percent corporate tax rate built in from prior general rate cases, we deferred the impact of the change in the first quarter of 2018. Effective May 1, 2018 in Washington and June 1, 2018 in Idaho, base rates reflect the lower 21 percent corporate tax.

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The following graphs present Avista Utilities' natural gas operating revenues and therms delivered for the six months ended June 30 (dollars in millions and therms in thousands):
chart-ebac4cfa3c6597d27b1.jpg
(1)This balance includes interruptible and industrial revenues, which are considered part of retail natural gas revenues, and deferrals/amortizations to customers related to federal income tax law changes.
Total natural gas operating revenues in the graph above include intracompany sales of $30.3 million and $17.6 million for the six months ended June 30, 2019 and June 30, 2018, respectively.
chart-3908a9b5142c9d78242.jpg

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The following table presents the current year deferrals and the amortization of prior year decoupling balances that are reflected in natural gas operating revenues for the six months ended June 30 (dollars in thousands):
 Natural Gas Decoupling
Revenues
 2019 2018
Current year decoupling deferrals (a)$(2,968) $2,606
Amortization of prior year decoupling deferrals (b)3,948
 (6,986)
Total natural gas decoupling revenue$980
 $(4,380)
(a)Positive amounts are increases in decoupling revenue in the current year and will be surcharged to customers in future years. Negative numbers are decreases in decoupling revenue in the current year and will be rebated to customers in future years.
(b)Positive amounts are increases in decoupling revenue in the current year and are related to the amortization of rebate balances that resulted in prior years and are being refunded to customers (causing a corresponding decrease in retail revenue from customers) in the current year. Negative numbers are decreases in decoupling revenue in the current year and are related to the amortization of surcharge balances that resulted in prior years and are being surcharged to customers (causing a corresponding increase in retail revenue from customers) in the current year.
Total natural gas revenues increased $18.0 million for the six months ended June 30, 2019 as compared to the six months ended June 30, 2018 primarily due to the following:
an $8.3 million decrease in natural gas retail revenues due lower retail rates (decreased revenues $25.5 million), partially offset by an increase in volumes (increased revenues $17.2 million).
We sold more retail natural gas in the six months ended June 30, 2019 as compared to the six months ended June 30, 2018 due to cooler weather during the heating season, and customer growth. Compared to the first six months of 2018, residential natural gas use per customer increased 9 percent and commercial use per customer increased 11 percent. Heating degree days in Spokane were 4 percent above normal and 13 percent above the first six months of 2018. Heating degree days in Medford were 1 percent above normal, and 6 percent above the first six months of 2018.
Lower retail rates were due to PGAs and rate decreases associated with the lower corporate tax rate and decoupling rate decreases (as our decoupling surcharges were larger in prior years, which resulted in higher surcharge rates in 2018 as compared to rebates in 2019), partially offset by general rate increases in Washington (effective May 1, 2018) and Idaho (effective January 1, 2019).
a $13.9 million increase in wholesale natural gas revenues due to an increase in prices (increased revenues $4.3 million) and an increase in volumes (increased revenues $9.6 million). Differences between revenues and costs from sales of resources in excess of retail load requirements and from resource optimization are accounted for through the PGA mechanisms.
a $5.4 million increase in natural gas revenue due to decoupling. Weather was cooler than normal in the first six months of 2019, which increased demand for natural gas heating, which resulted in decoupling rebates related to the current year. This was partially offset by the amortization of decoupling rebates from prior years.
the $7.1 million increase in other natural gas revenues was primarily related to federal income tax law changes that lowered the corporate tax rate from 35 percent to 21 percent. As our customers' rates had the 35 percent corporate tax rate built in from prior general rate cases, we deferred the impact of the change beginning January 1, 2018. Effective May 1, 2018 in Washington, June 1, 2018 in Idaho and March 1, 2019 in Oregon, base rates reflect the lower 21 percent corporate tax.

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The following table presents Avista Utilities' average number of electric and natural gas retail customers for the six months ended June 30:
 
Electric
Customers
 
Natural Gas
Customers
 2019 2018 2019 2018
Residential344,140
 339,114
 320,309
 313,515
Commercial42,898
 42,582
 35,771
 35,493
Interruptible
 
 45
 39
Industrial1,310
 1,317
 240
 247
Public street and highway lighting604
 591
 
 
Total retail customers388,952
 383,604
 356,365
 349,294

Utility Resource Costs
The following graphs present Avista Utilities' resource costs for the six months ended June 30 (dollars in millions):
chart-dca336b52cc07ac4481.jpg
Total electric resource costs in the graph above include intracompany resource costs of $30.3 million and $17.6 million for the six months ended June 30, 2019 and June 30, 2018, respectively.

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chart-b8497756be83d441368.jpg
Total natural gas resource costs in the graph above include intracompany resource costs of $25.7 million and $8.9 million for the six months ended June 30, 2019 and June 30, 2018, respectively.
Total electric resource costs decreased $15.2 million for the six months ended June 30, 2019 as compared to the six months ended June 30, 2018 primarily due to the following:
a $2.4 million decrease in purchased power due to a decrease in the volume of power purchases (decreased costs $15.3 million), partially offset by an increase in wholesale prices (increased costs $12.9 million). The fluctuation in volumes and prices was primarily the result of our optimization activities during the period.
a $7.2 million increase in fuel for generation primarily due to an increase in thermal generation, as well as natural gas fuel prices.
a $7.5 million decrease in other fuel costs. This represents fuel and the related derivative instruments that were purchased for generation but were later sold when conditions indicated that it was more economical to sell the fuel as part of the resource optimization process. When the fuel or related derivative instruments are sold, that revenue is included in sales of fuel.
a $17.3 million decrease from amortizations and deferrals of power costs.
a $4.7 million increase in other regulatory amortizations and other electric resource costs.
Total natural gas resource costs increased $17.3 million for the six months ended June 30, 2019 as compared to the six months ended June 30, 2018 primarily due to the following:
a $51.9 million increase in natural gas purchased due to an increase in the price of natural gas (increased costs $31.9 million) and an increase in total therms purchased (increased costs $20.0 million). Total therms purchased increased due to an increase in retail sales and wholesale sales.
a $36.8 million decrease from amortizations and deferrals of natural gas costs, primarily reflecting higher natural gas prices.
a $2.2 million increase in other regulatory amortizations.

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Utility Margin
The following table reconciles Avista Utilities' operating revenues, as presented in "Note 16 of the Notes to Condensed Consolidated Financial Statements" to utility margin for the six months ended June 30 (dollars in thousands):
 Electric Natural Gas Intracompany Total
 2019 2018 2019 2018 2019 2018 2019 2018
Operating revenues$486,058
 $498,035
 $237,443
 $219,394
 $(55,991) $(26,453) $667,510
 $690,976
Resource costs159,445
 174,656
 123,764
 106,484
 (55,991) (26,453) 227,218
 254,687
Utility margin$326,613
 $323,379
 $113,679
 $112,910
 $
 $
 $440,292
 $436,289
Electric utility margin increased $3.2 million and naturalNatural gas utility margin increased $0.8 million.
Electric utility margin was positively impacted during 2019 byprimarily due to a general rate increasesincrease in Idaho (effectiveOregon, effective January 1, 2019)15, 2020 and Washington (effective May 1, 2018), as well as customer growth. For the six months ended June 30, 2019, we recognized a pre-tax benefitThese increases were mostly offset by an accrual for customer refunds of $3.5$3.6 million under the ERM inrelated to our 2015 Washington compared to a benefit of $5.8 million for the six months ended June 30, 2018. For the full year of 2019, we expect to be in a benefit position under the ERM within the 75 percent customer/25 percent Company sharing band.
Natural gas utility margin was positively impacted by general rate increases in Washington (effective May 1, 2018) and Idaho (effective January 1, 2019), and customer growth.case that was remanded back to the WUTC during 2019. See "Regulatory Matters" for further discussion.
Intracompany revenues and resource costs represent purchases and sales of natural gas between our natural gas distribution operations and our electric generation operations (as fuel for our generation plants). These transactions are eliminated in the presentation of total results for Avista Utilities and in the condensed consolidated financial statements but are included in the separate results for electric and natural gas presented above.
Results of Operations - Alaska Electric Light and Power Company
Three months ended June 30, 2019March 31, 2020 compared to the three months ended June 30, 2018 and six months ended June 30,March 31, 2019 compared to the six months ended June 30, 2018
Net income for AEL&P was $1.1$3.4 million for the three months ended June 30, 2019March 31, 2020 compared to $1.3$3.6 million for the three months ended June 30, 2018. Net income was $4.6 million for the six months ended June 30, 2019 compared to $5.1 million for the six months ended June 30, 2018.March 31, 2019.
The following table presents AEL&P's operating revenues, resource costs and resulting utility margin for the three and six months ended June 30March 31 (dollars in thousands):
Three months ended June 30, Six months ended June 30,
2019 2018 2019 20182020 2019
Operating revenues$8,743
 $10,482
 $19,624
 $24,145
$12,202
 $10,881
Resource costs(67) 2,947
 (1,432) 5,900
(10) (1,365)
Utility margin$8,810
 $7,535
 $21,056
 $18,245
$12,212
 $12,246
Electric revenues decreasedincreased for the secondfirst quarter and year-to-date 2019of 2020 primarily due to lowerhigher sales volumes to residential and commercial customers for 20192020 as compared to 2018.2019. This resulted from weather that was warmer than normal and warmercooler than the prior year.year, as well as more hydroelectric generation than the first quarter of 2019.
Resource costs decreased from the prior year due to the adoption of the new lease standard on January 1, 2019, which resulted in the reclassification of Snettisham power purchase costs from resource costs to depreciation and amortization and interest expense in 2019. See "Notes 2 and 5 of the Notes to Condensed Consolidated Financial Statements" for further information regarding the adoption of the new lease standard. In addition, AEL&P had low hydroelectric generation during the first halfquarter of 2019, which limited energy provided to their interruptible customers. A portion of the sales to interruptible customers is used to reduce the overall cost of power to AEL&P's firm customers. When interruptible sales are below a certain threshold, AEL&P recognizes a regulatory asset and records a reduction to deferred power supply costs (resource costs) to reflect a future billable amount to its firm customers when the cost of power rates are reset. During the first quarter of 2020, hydroelectric generation returned to normal levels, which resulted in less resource costs compared to the first quarter of 2019.

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Results of Operations - Other Businesses
Net incomeloss for our other businesses was $3.0$1.0 million for the three months ended June 30, 2019March 31, 2020 compared to net income of less than $0.1$0.3 million for the three months ended June 30, 2018. Net income was $3.4 million for the six months ended June 30, 2019 compared to net losses of $4.4 million for the six months ended June 30, 2018.March 31, 2019.
During the secondfirst quarter of 2019, we sold METALfx, which resulted in a net gain after-tax of approximately $2.3 million. See "Note 18 of the Notes to Condensed Consolidated Financial Statements" for further discussion of the sale of METALfx.
In addition, during 20192020, we had netan impairment loss and an accrual for bad debt, which were partially offset by investment gains associated with our equity investments, primarily from a gain on the sale of one of our investments. This is compared to the first quarter of 2019 that resulted in net investment gains.
Due to market deterioration from a possible future recession, further losses could be incurred on our non-utility investments during 2018 primarily from an impairmentthe remainder of one of our investments and expenses associated with a renovation project.2020.
Critical Accounting Policies and Estimates
The preparation of our consolidated financial statements in conformity with GAAP requires us to make estimates and assumptions that affect amounts reported in the consolidated financial statements. Changes in these estimates and assumptions are considered reasonably possible and may have a material effect on our consolidated financial statements and thus actual results could differ from the amounts reported and disclosed herein. Our critical accounting policies that require the use of estimates and assumptions were discussed in detail in the 20182019 Form 10-K and have not changed materially from that discussion.materially.
Liquidity and Capital Resources
Overall Liquidity
Our
We expect that COVID-19 will have a negative impact on our overall liquidity. For 2020, we expect our net cash flows from operations to decrease primarily due to lower expected revenues from retail sales of electricity and natural gas and lower payments from customers.

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In response to potential liquidity needs, in April 2020, we entered into a $100 million credit agreement, see "Note 9 of the Notes to Condensed Consolidated Financial Statements."
Other than COVID-19 impacts, our sources of overall liquidity and the requirements for liquidity have not materially changed in the sixthree months ended June 30, 2019.March 31, 2020. See the 20182019 Form 10-K for further discussion.
As of June 30, 2019,March 31, 2020, we had $212.4$182.0 million of available liquidity under the Avista Corp. committed line of credit and $25.0 million under the AEL&P committed line of credit. WithAfter considering the impacts of COVID-19, with our $400.0 million credit facility that expires in April 2021, and AEL&P's $25.0 million credit facility that expires in November 2019,2024 and the new $100.0 million credit agreement that expires in April 2021, we believe that we have adequate liquidity to meet our needs for the next 12 months. We anticipate pursuing an extension to the AEL&P credit facility or entering into a new agreement during 2019.
Review of Cash Flow Statement
Operating Activities
Net cash provided by operating activities was $252.7135.3 million for the sixthree months ended June 30, 2019March 31, 2020 compared to $275.4196.9 million for the sixthree months ended June 30, 2018.March 31, 2019. The decrease in net cash provided by operating activities was primarily duerelates to power and natural gas deferrals which increased duringa termination fee of $103.0 million received in 2019 due to higher natural gas prices duringupon the year (which decreased cash flows by $47.7 million) as compared to an increase to operating cash flows of $6.7 million in 2018. As compared to 2018, changes in accounts receivable resulted in a decrease to operating cash flows of $18.1 million.
The above decreases were partially offset by the receipttermination of the $103.0 million merger termination fee from Hydro One that is reflected in net income for 2019.transaction. The termination fee was used for reimbursing our transaction costs incurred from 2017 to 2019 which totaled approximately $51.0 million, including income taxes. The balance of the termination fee was used for general corporate purposes and reduced our need for external financing. Our total transaction costs were $19.7 million (pre-tax) for 2019 and we also incurred approximately $15.7 million in taxes in 2019 (net2019.
The above decrease in net cash provided by operating activities was partially offset by power and natural gas deferrals which decreased during 2020 due to lower natural gas prices during the year (which increased cash flows by $6.4 million) as compared to an decrease to operating cash flows of $1.8$48.1 million in tax benefits recaptured from 20172019. As compared to 2019, net current assets and 2018).liabilities decreased by $43.0 million.
Investing Activities
Net cash used in investing activities was $190.095.1 million for the sixthree months ended June 30, 2019March 31, 2020, compared to $192.997.7 million for the sixthree months ended June 30, 2018March 31, 2019. During the sixthree months ended June 30, 2019,March 31, 2020, we paid $200.0$95.5 million for utility capital expenditures compared to $183.1$93.6 million for the sixthree months ended June 30, 2018.March 31, 2019. Also, during 2019,the first quarter of 2020, we received proceeds from the sale of METALfxan equity investment (net of cash sold and amounts held in escrow) of $16.4$5.1 million. This amount is prior to the payment of transaction costs, which are reflected in operating activities.
Financing Activities
Net cash used by financing activities was $60.131.1 million for the sixthree months ended June 30, 2019March 31, 2020, compared to $63.498.0 million for the sixthree months ended June 30, 2018March 31, 2019. Due to the receipt of the termination fee described above, we were able to reduce our short-term borrowings during the first quarter of 2019, as evidenced by the $21.0$71.0 million decrease in short-term borrowings. Also,borrowings during 20192019. For 2020, we issued $14.9 millionhad a decrease in short-term borrowings of common stock, most of which was under our sales agency agreements in the second quarter.$0.8 million.

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During 2018, we issued $374.6 million in long-term debt and repaid $276.2 million, as well as paid off $105.4 million of borrowings on our committed line of credit.
Capital Resources
Our consolidated capital structure, including the current portion of long-term debt and short-term borrowings, and excluding noncontrolling interests, consisted of the following as of June 30, 2019March 31, 2020 and December 31, 20182019 (dollars in thousands):
June 30, 2019 December 31, 2018March 31, 2020 December 31, 2019
Amount 
Percent
of total
 Amount 
Percent
of total
Amount 
Percent
of total
 Amount 
Percent
of total
Current portion of long-term debt and leases (1)$111,846
 2.8% $107,645
 2.8%$58,946
 1.4% $58,928
 1.4%
Short-term borrowings169,000
 4.2% 190,000
 4.9%185,000
 4.4% 185,800
 4.5%
Long-term debt to affiliated trusts51,547
 1.3% 51,547
 1.3%51,547
 1.2% 51,547
 1.2%
Long-term debt and leases (1)1,822,812
 45.1% 1,755,529
 45.3%1,957,142
 46.5% 1,961,083
 46.7%
Total debt2,155,205
 53.4% 2,104,721
 54.3%2,252,635
 53.5% 2,257,358
 53.8%
Total Avista Corporation shareholders’ equity1,884,034
 46.6% 1,773,220
 45.7%1,959,095
 46.5% 1,939,284
 46.2%
Total$4,039,239
 100.0% $3,877,941
 100.0%$4,211,730
 100.0% $4,196,642
 100.0%
(1)Effective, January 1, 2019, we adopted ASC 842 which resulted in the reclassification of the Snettisham lease from long-term debt, to lease liabilities in 2019. The Snettisham lease amount is included here for this calculation. In addition, operating leases were recorded on the Condensed Consolidated Balance Sheet as of January 1, 2019 and are included here for this calculation. See "Note 5 of the Notes to Condensed Consolidated Financial Statements" for further discussion.
Our shareholders’ equity increased $110.819.8 million during the first sixthree months of 20192020 primarily due to net income, and the issuance of common stock, partially offset by dividends.

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We need to finance capital expenditures and acquire additional funds for operations from time to time. The cash requirements needed to service our indebtedness, both short-term and long-term, reduce the amount of cash flow available to fund capital expenditures, purchased power, fuel and natural gas costs, dividends and other requirements.
Committed Lines of Credit
Avista Corp. has a committed line of credit with various financial institutions in the total amount of $400.0 million that expiresmillion. We expect to amend and extend the revolving line of credit agreement in the second quarter for a revised term of one additional year beyond the current maturity date of April 2021,. with the option to extend for an additional one year period. As of June 30, 2019,March 31, 2020, there was $212.4$182.0 million of available liquidity under this line of credit.
The Avista Corp. credit facility contains customary covenants and default provisions, including a covenant which does not permit our ratio of “consolidated total debt” to “consolidated total capitalization” to be greater than 65 percent at any time. As of June 30, 2019,March 31, 2020, we were in compliance with this covenant with a ratio of 53.453.5 percent.
AEL&P has a $25.0 million committed line of credit that expires in November 2019.2024. As of June 30, 2019,March 31, 2020, there were no borrowings or letters of credit outstanding under this committed line of credit.
The AEL&P credit facility contains customary covenants and default provisions including a covenant which does not permit the ratio of “consolidated total debt at AEL&P” to “consolidated total capitalization at AEL&P,”&P” (including the impact of the Snettisham obligation) to be greater than 67.5 percent at any time. As of June 30, 2019,March 31, 2020, AEL&P was in compliance with this covenant with a ratio of 52.553.0 percent.
Balances outstanding and interest rates of borrowings under Avista Corp.'s committed line of credit were as follows as of and for the sixthree months ended June 30March 31 (dollars in thousands):
 2019 2018
Borrowings outstanding at end of period$169,000
 $
Letters of credit outstanding at end of period$18,603
 $25,620
Maximum borrowings outstanding during the period$190,000
 $111,000
Average borrowings outstanding during the period$114,331
 $48,442
Average interest rate on borrowings during the period3.31% 2.37%
Average interest rate on borrowings at end of period3.26% %
The increase in the average interest rates as of and for the six months ended June 30, 2019 was primarily the result of a downgrade in our credit rating by Moody's during December 2018. See the 2018 10-K for further discussion of the downgrade by Moody's.

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 2020 2019
Borrowings outstanding at end of period$185,000
 $119,000
Letters of credit outstanding at end of period$32,983
 $60,103
Maximum borrowings outstanding during the period$193,000
 $111,000
Average borrowings outstanding during the period$173,684
 $36,299
Average interest rate on borrowings during the period2.33% 2.43%
Average interest rate on borrowings at end of period1.66% 3.31%
As of June 30, 2019,March 31, 2020, Avista Corp. and its subsidiaries were in compliance with all of the covenants of their financing agreements, and none of Avista Corp.'s subsidiaries constituted a “significant subsidiary” as defined in Avista Corp.'s committed line of credit.
In April 2020, we entered into a $100.0 million credit agreement with a maturity date of April 2021. We borrowed the entire $100.0 million available under this agreement, which is being used to provide additional liquidity. See "Note 9 of the Notes to Condensed Consolidated Financial Statements."
Loans under this agreement are unsecured and will have a variable annual interest rate determined by either the Eurodollar rate or the Alternative Base Rate depending on the type of loan selected by Avista Corp. The credit agreement contains customary covenants and default provisions, including a covenant not to permit the ratio of “consolidated total debt” to “consolidated total capitalization” of Avista Corp. to be greater than 65 percent at any time.
Liquidity Expectations
In January 2019, we received a $103 million termination fee from Hydro One in connection with the termination of the proposed acquisition. The termination fee was used for reimbursing our transaction costs incurred from 2017 to 2019. These costs, including income taxes, total approximately $51 million. The balance of the termination fee was used for general corporate purposes and reduced our need for external financing.
During 2019,2020, we expect to issue approximately $180.0$165.0 million of long-term debt and up to $65.0$70.0 million of equity (including issuances year-to-date) in order to refinance maturing long-term debt, and fund planned capital expenditures and maintain an appropriate capital structure. This represents an increase from our previous estimates primarily to fund the expected increase in 2019 capital expenditures.
After considering the impacts of COVID-19, including the expectation of lower net operating cash flows, and the expected issuances of long-term debt and equity during 2019,2020, we expect net cash flows from operating activities,operations, together with cash available under our committed linelines of credit agreements,and the $100.0 million borrowed under the credit agreement entered in April, to provide adequate resources to fund capital expenditures, dividends, and other contractual commitments.
Capital Expenditures
We are making capital investments to enhance service and system reliability for our customers and replace aging infrastructure. We estimate capital expenditures at Avista Utilities will be approximately $435.0 million for 2019, which represents an increase from our previous estimate of $405.0 million. The increase is primarily related to increases inOur estimated capital expenditures for renewable integration and customer growth.2020 through 2022 have not materially changed during the three months ended March 31, 2020. It is possible that prolonged economic restrictions or business interruptions could cause a decrease in our utility capital expenditures. See the 20182019 Form 10-K for further information on our expected capital expenditures.

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Off-Balance Sheet Arrangements
As of June 30, 2019March 31, 2020, we had $18.633.0 million in letters of credit outstanding under our $400.0 million committed line of credit, compared to $10.521.5 million as of December 31, 20182019. The increase in letters of credit outstanding was due to additional letters of credit being issued as collateral for energy commodity derivative instruments.
Pension Plan
Avista Utilities
In the sixthree months ended June 30, 2019March 31, 2020 we contributed $14.67.3 million to the pension plan and we expect to contribute a total of $22.0 million in 2019.2020. We expect to contribute a total of $110.0 million to the pension plan in the period 20192020 through 2023,2024, with annual contributions of $22.0 million over that period.
The final determination of pension plan contributions for future periods is subject to multiple variables, most of which are beyond our control, including changes to the fair value of pension plan assets, changes in actuarial assumptions (in particular the discount rate used in determining the benefit obligation), or changes in federal legislation. We may change our pension plan contributions in the future depending on changes to any variables, including those listed above.
Disruptions and overall declines in the financial markets have decreased the fair value of pension plan assets and lower discount rates will increase the pension liability. This could ultimately increase future pension plan funding requirements and expenses. The impact on pension plan assets is mitigated as a significant portion of the assets are fixed-income securities with a target of 35 percent invested in equity securities. The impact on pension expense is also mitigated by pension accounting under GAAP, given that expense is based on the long-term rate of return which should be less affected by short-term market fluctuations.
See "Note 76 of the Notes to Condensed Consolidated Financial Statements" for additional information regarding the pension plan.
Contractual Obligations
Our future contractual obligations have not materially changed during the sixthree months ended June 30, 2019. March 31, 2020, except for in April 2020, we entered into a $100.0 million credit agreement with a maturity date of April 2021. See "Note 9 of the Notes to Condensed Consolidated Financial Statements."
See the 20182019 Form 10-K for our contractual obligations.
Environmental Issues and Contingencies
Our environmental issues and contingencies disclosures have not materially changed during the sixthree months ended June 30, 2019March 31, 2020 except for the following:
Coal Ash Management/Disposal
In 2015, the EPA issued a final rule regarding coal combustion residuals (CCRs), also termed coal combustion byproducts or coal ash. The CCR rule has been the subject of ongoing litigation. In August 2018, the D.C. Circuit struck down provisions of the rule. Colstrip, Coal Contract
Colstrip,of which is operated by Talen Montana, is supplied with fuel from adjacent coal reserves under coal supply and transportation agreements. The current contract for coal supply extends through 2019; however, the coal mine operator is in bankruptcy and had indicated that it would reject the current contract in its bankruptcy. The co-ownerswe are a 15 percent owner of Colstrip filed objectionsUnits 3 & 4, produces this byproduct. On December 2, 2019, a proposed revision to the proposed rejectionrule was published in the Federal Register to address the D.C. Circuit's decision. The rule includes technical requirements for CCR landfills and surface impoundments under Subtitle D of the coal supply contractResource Conservation and Recovery Act, the nation's primary law for regulating solid waste. The Colstrip owners developed a multi-year compliance plan to address the CCR requirements with existing state obligations expressed largely by the 2012 Administrative Order on Consent (AOC) with Montana Department of Environmental Quality (MDEQ). These requirements continue despite the 2018 federal court ruling.
The AOC requires MDEQ provide an ongoing public process which recently approved the Remedy and Closure plans for the three major areas of Colstrip. The AOC also requires the Colstrip owners to provide financial assurance primarily in February 2019, an amended planthe form of reorganization wassurety bonds, to secure each owner’s pro rata share of various anticipated closure and remediation obligations. Avista Corp. is responsible for its share of two major areas; the Plant Site Area and the Effluent Holding Pond (EHP) Area. Generally, the plans include the removal of Boron, Chloride, and Sulfate from the groundwater, closure of the existing ash storage ponds, and installation of a new water treatment system to convert the facility to a dry ash storage. Avista Corp. has posted three surety bonds totaling approximately $23 million. This amount will be updated annually, decreasing over time as remediation activities are completed.

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filed in which the proposal to reject the coal supply contract was withdrawn. The court approved the amended plan of reorganization on March 2, 2019, which allows the coal supply contract to remain in effect through 2019. The co-owners of Colstrip are in negotiations for an extension to the coal contract beyond 2019Oregon Legislation and at the same time are exploring alternative sources for coal supply. Any new arrangements for coal beyond 2019 may have higher costs than the existing coal supply agreement.
Clean Energy Commitment
On April 18, 2019, we announced a goal to serve our customers with 100 percent clean electricity by 2045 and to have a carbon-neutral supply of electricity by the end of 2027. To help achieve these goals and add to our clean electricity portfolio, in the last three years, we have implemented three renewable energy projects on behalf of our customers, the Community Solar project (0.4 MW) in Spokane Valley, Washington (owned by Avista Corp.), the Solar Select project (28 MW) in Lind, Washington (PPA) and the Rattlesnake Flat Wind project (144 MW) in Adams County, Washington (PPA).
Climate Change - Federal Regulatory Actions
GHG Reduction Targets
The EPA released the final versionState of the Affordable Clean Energy (ACE) rule, the replacement for the Clean Power Plan (CPP), in June 2019. EPA’s final rule does not contain any final action on the proposed modifications to the new source review (NSR) program that would provide coal-fired power plants more latitude to make efficiency improvements without triggering pre-construction permit requirements. The final ACE rule combines three distinct EPA actions. First, EPA finalizes the repeal of the CPP.
Second, the EPA finalizes the ACE rule, which comprises EPA’s determination of the Best System of Emissions Reduction (BSER) for existing coal-fired power plants and establishment of the procedures that will govern States’ promulgation of standards of performance for existing EGUs within their borders. EPA sets the final BSER as heat rate efficiency improvements (HRI) based on a range of “candidate technologies” that can be applied inside the fence-line and requires that each State determine which apply to each coal-fired unit based on consideration of remaining useful plant life.
Lastly, EPA finalizes a number of changes to the implementing regulations for the timing of State plans for this and future section 111(d) rulemakings. With respect to the Colstrip Generation Station, the Montana Department of Environmental Protection (MDEQ) would initiate the BSER evaluation process. We cannot reasonably predict the timing or outcome of MDEQ’s efforts, or estimate the extent to which Colstrip may be impacted at this time.
Climate Change - State Legislation and State Regulatory Activities
The states of Washington and Oregon havehas adopted non-binding targets to reduce GHG (Greenhouse Gas) emissions. Both statesThe State enacted theirits targets with an expectation of reaching the targets through a combination of renewable energy standards, eventual carbon pricing mechanisms, such as cap and trade regulation or a carbon tax, and assorted “complementary policies.” However, no specific reductions are mandated as yet. The Governors and Legislatures of both states began drafting climate-related proposals aheadState’s targets have been evaluated by state institutions against the aims of the 2019 legislative sessions.InParis Climate Accord of 2016, which include limiting the increase in global average temperatures to at least below 2 degrees Celsius above pre-industrial levels and pursuing efforts to restrict the temperature increase to 1.5 degrees Celsius above pre-industrial levels. On March 10, 2020, Oregon Governor Kate Brown issued Executive Order No. 20-04, “Directing State Agencies to Take Actions to Reduce and Regulate Greenhouse Gas Emissions.” The Executive Order launches rulemaking proceedings for every Oregon agency with jurisdiction over greenhouse gas-related matters, with the State Senate failedaim of reducing Oregon’s overall GHG emissions to pass House Bill80% below 1990 levels by 2050. The Executive Order requires agencies to submit a preliminary report to the Governor by May 15, 2020 (HB 2020), authorizingregarding potential regulatory program options. We cannot reasonably predict what regulatory proceedings will arise from the State to implement a cap and trade system and to link its allowances market with other jurisdictions. Had HB 2020 been enacted, Oregon would have been onlyExecutive Order, nor how the second state legislature may undertake additional requirements or revise the State's targets in the nation to implement an economy-wide cap and trade regulation. Avista monitored this legislation for its potential implications on the company’s gas distribution operations in the state and upon the operation of its Coyote Springs II. In Washington State, Senate Bill 5116 (SB 5116) was the centerpiece of the Governor’s package of legislation aiming to reduce greenhouse gas emissions from specific sectors of the economy through direct regulation. SB 5116 requires Washington utilities to no longer allocate coal-fired resources to Washington retail customers by the end of 2025, and to achieve carbon neutrality by 2030 while meeting a minimum 80 percent of load through delivery of renewable or non-emitting resources to customers. The legislation sets-forth alternative compliance measures that can be acquired by an electric utility to offset emissions from fossil fuel generation. The bill also requires utilities to meet 100 percent of load with renewable and non-emitting resources by 2045, although no penalties for failing to meet that standard were established. Under SB 5116, our hydroelectric and biomass generation facilities are considered resources that can be used to comply with the bill’s clean energy standards. The bill was passed by both the Senate and House in April 2019 and was signed into law by the Governor on May 7, 2019. The law requires additional rulemaking by several Washington agencies for its measures to be enacted.future. We intend to seek recovery of any new costs associated with the clean energy legislationthese reduction targets, or any new reduction targets, through the regulatory process.
Cabinet Gorge Total Dissolved Gas Abatement Plan
Dissolved atmospheric gas levels (referred to as "Total Dissolved Gas" or "TDG") in the Clark Fork River exceed state of Idaho and federal water quality numeric standards downstream of Cabinet Gorge particularly during periods when excess river flows must be diverted over the spillway. Under the terms of the Clark Fork Settlement Agreement as incorporated in Avista Corp.’s FERC license for the Clark Fork Project, Avista Corp. works in consultation with agencies, tribes and other stakeholders to address this issue through structural modifications to the spillgates, monitoring and analysis. After extensive testing, Clark Fork Settlement Agreement stakeholders have agreed that no further spillway modifications are justified. For the remainder of the FERC License term, Avista Corp. will continue to mitigate remaining impacts of TDG while considering the potential for new approaches to further reduce TDG. The Company continues to work with stakeholders to determine the degree to which TDG abatement reduces future mitigation obligations. The Company has sought, and intends to continue to seek recovery, through the ratemaking process, of all operating and capitalized costs related to this issue.
See the 20182019 Form 10-K for further discussion of environmental issues and contingencies.
Enterprise Risk Management
The material risks to our businesses, and our mitigation process and procedures to address these risks, were discussed in our 20182019 Form 10-K and have not materially changed during the sixthree months ended June 30, 2019. ReferMarch 31, 2020, other than the changes noted due to COVID-19. See the 20182019 Form 10-K for further discussion of our risks and the mitigation of those risks.

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10-K.
Financial Risk
Our financial risks have not materially changed during the sixthree months ended June 30, 2019.March 31, 2020, other than the changes noted due to COVID-19. Refer to the 20182019 Form 10-K. The financial risks included below are required interim disclosures, even if they have not materially changed from December 31, 2018.2019.
Interest Rate Risk
We use a variety of techniques to manage our interest rate risks. We have an interest rate risk policy and have established a policy to limit our variable rate exposures to a percentage of total capitalization. Additionally, interest rate risk is managed by monitoring market conditions when timing the issuance of long-term debt and optional debt redemptions and establishing fixed rate long-term debt with varying maturities. See "Note 65 of the Notes to Condensed Consolidated Financial Statements" for a summary of our interest rate swap derivatives outstanding as of June 30, 2019March 31, 2020 and December 31, 20182019 and the amount of additional collateral we would have to post in certain circumstances. In addition, see "Regulatory Matters" for a discussion of commitments we made in Oregon surrounding the independent review of our interest rate hedging practices.

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Credit Risk
Avista Utilities' contracts for the purchase and sale of energy commodities can require collateral in the form of cash or letters of credit. As of June 30, 2019,March 31, 2020, we had cash deposited as collateral in the amount of $26.2$1.8 million and letters of credit of $14.6$25.0 million outstanding related to our energy derivative contracts. Price movements and/or a downgrade in our credit ratings could impact further the amount of collateral required. See “Credit Ratings” in the 20182019 Form 10-K for further information. For example, in addition to limiting our ability to conduct transactions, if our credit ratings were lowered to below “investment grade” based on our positions outstanding at June 30, 2019March 31, 2020 (including contracts that are considered derivatives and those that are considered non-derivatives), we would potentially be required to post the following additional collateral (in thousands):
June 30, 2019March 31, 2020
Additional collateral taking into account contractual thresholds$5,500
$2,897
Additional collateral without contractual thresholds6,700
3,407
Under the terms of interest rate swap derivatives that we enter into periodically, we may be required to post cash or letters of credit as collateral depending on fluctuations in the fair value of the instrument. As of June 30, 2019,March 31, 2020, we had interest rate swap derivatives outstanding with a notional amount totaling $265.0$245.0 million and we had cash deposited cashas collateral in the amount of $5.0$27.1 million as collateraland letters of credit of $3.9 million outstanding for these interest rate swap derivatives. If our credit ratings were lowered to below “investment grade” based on our interest rate swap derivatives outstanding at June 30, 2019,March 31, 2020, we would potentially be required to post the following additional collateral (in thousands):
June 30, 2019March 31, 2020
Additional collateral taking into account contractual thresholds$7,500
$31,850
Additional collateral without contractual thresholds26,000
81,280
Energy Commodity Risk
Our energy commodity risks have not materially changed during the sixthree months ended June 30, 2019,March 31, 2020, except as discussed below. Refer tobelow and the 2018COVID-19 related risks. See the 2019 Form 10-K. The following table presents energy commodity derivative fair values as a net asset or (liability) as of June 30, 2019March 31, 2020 that are expected to settle in each respective year (dollars in thousands):. There are no expected deliveries of energy commodity derivatives after 2022.
 Purchases Sales
 Electric Derivatives Gas Derivatives Electric Derivatives Gas Derivatives
YearPhysical (1) Financial (1) Physical (1) Financial (1) Physical (1) Financial (1) Physical (1) Financial (1)
Remainder 2019$12
 $3,894
 $(869) $(7,602) $(127) $(16,161) $(623) $(158)
2020
 
 (837) (2,161) (274) (6,164) (1,565) (1,313)
2021
 
 
 212
 
 (989) (810) (399)
2022
 
 
 44
 
 
 
 
2023
 
 
 
 
 
 
 
Thereafter
 
 
 
 
 
 
 

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 Purchases Sales
 Electric Derivatives Gas Derivatives Electric Derivatives Gas Derivatives
YearPhysical (1) Financial (1) Physical (1) Financial (1) Physical (1) Financial (1) Physical (1) Financial (1)
Remainder 2020$(2) $(794) $(203) $3,185
 $427
 $4,230
 $(881) $(4,997)
2021
 50
 39
 3,309
 
 966
 (1,345) (2,065)
2022
 
 75
 368
 
 
 
 (19)
The following table presents energy commodity derivative fair values as a net asset or (liability) as of December 31, 20182019 that are expected to be delivered in each respective year (dollars in thousands):. There are no expected deliveries of energy commodity derivatives after 2022.
Purchases SalesPurchases Sales
Electric Derivatives Gas Derivatives Electric Derivatives Gas DerivativesElectric Derivatives Gas Derivatives Electric Derivatives Gas Derivatives
YearPhysical (1) Financial (1) Physical (1) Financial (1) Physical (1) Financial (1) Physical (1) Financial (1)Physical (1) Financial (1) Physical (1) Financial (1) Physical (1) Financial (1) Physical (1) Financial (1)
2019$(2,238) $7,289
 $(991) $(32,285) $34
 $(19,047) $(443) $6,252
2020
 
 (1,266) (7,797) (28) (4,044) (1,517) (240)$19
 $2,063
 $(895) $10,929
 $(422) $(7,448) $(1,634) $(8,922)
2021
 
 
 (1,393) 
 
 (629) 47

 
 15
 2,666
 
 (26) (1,187) (1,941)
2022
 
 
 
 
 
 

 

 
 35
 180
 
 
 
 (5)
2023
 
 
 
 
 
 
 
Thereafter
 
 
 
 
 
 
 
(1)Physical transactions represent commodity transactions wherein which we will take or make delivery of either electricity or natural gas; financial transactions represent derivative instruments with delivery of cash in the amount of the benefit or cost but with no physical delivery of the commodity, such as futures, swap derivatives, options, or forward contracts.
The above electric and natural gas derivative contracts will be included in either power supply costs or natural gas supply costs during the period they are delivered and will be included in the various deferral and recovery mechanisms (ERM, PCA, and PGAs), or in the general rate case process, and are expected to eventually be collected through retail rates from customers.

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The California Independent System Operator (CAISO) operates an Energy Imbalance Market (EIM) in the western United States. Most investor-owned utilities in the Pacific Northwest are either participants in the CAISO EIM or plan to integrate into the market in the near future. Factors to be considered in deciding whether to join the CAISO EIM include the amount of variable generating resources in the utilities’ systems, the ability to manage the variable generating resources within the utilities’ systems, the costs associated with joining the CAISO EIM, and the economic benefits associated with joining the CAISO EIM. As additional utilities join the CAISO EIM, there is a reduction in bilateral market liquidity and opportunities for wholesale transactions close to the operating hour. Based on these considerations, we signed an agreement in April 2019 to join the CAISO EIM. We expect to begin implementing new processes to enable participation in the EIM in the second half of 2019 and we expect to be full participants by April 2022. We estimate the total cost of joining the EIM to be approximately $25 million for both capital and operating expense spending over the three-year implementation period and we estimate annual benefits of approximately $6 million from market participation. We expect to seek recovery of the net costs through the regulatory process.
AVISTA CORPORATION



Item 3. Quantitative and Qualitative Disclosures about Market Risk
The information required by this item is set forth in the Enterprise Risk Management section of "Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations" and is incorporated herein by reference.
Item 4. Controls and Procedures
Conclusion Regarding the Effectiveness of Disclosure Controls and Procedures
The Company has disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended) (Act) that are designed to ensure that information required to be disclosed in the reports it files or submits under the Act is recorded, processed, summarized and reported on a timely basis. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed by the Company in the reports that it files or submits under the Act is accumulated and communicated to the Company’s management, including its principal executive and principal financial officers, as appropriate, to allow timely decisions regarding required disclosure. With the participation of the Company’s principal executive officer and principal financial officer, the Company's management evaluated its disclosure controls and procedures as of the end of the period covered by this report. There are inherent limitations to the effectiveness of any system of disclosure controls and procedures, including the possibility of human error and the circumvention or overriding of the controls and procedures. Accordingly, even effective disclosure controls and procedures can only provide reasonable assurance of achieving their control objectives. Based upon this evaluation, the Company’s principal executive officer and principal financial officer have concluded that the Company’s disclosure controls and procedures are effective at a reasonable assurance level as of June 30, 2019March 31, 2020.
There have been no changes in the Company's internal control over financial reporting that occurred during the secondfirst quarter of 20192020 that have materially affected, or are reasonably likely to materially affect, the Company's internal control over financial reporting.

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PART II. Other Information

Item 1. Legal Proceedings
See “Note 15 of Notes to Condensed Consolidated Financial Statements” in “Part I. Financial Information Item 1. Condensed Consolidated Financial Statements.”
Item 1A. Risk Factors
Refer to the 20182019 Form 10-K for disclosure of risk factors that could have a significant impact on our results of operations, financial condition or cash flows and could cause actual results or outcomes to differ materially from those discussed in our reports filed with the SEC (including this Quarterly Report on Form 10-Q), and elsewhere. These risk factors have not materially changed from the disclosures provided in the 20182019 Form 10-K.10-K with the exception of the following:
The COVID 19 global pandemic is disrupting our business and could have a negative effect on our results of operations, financial condition and cash flows.
The COVID-19 global pandemic is currently impacting all aspects of our business, as well as the global, national and local economy. We cannot predict the full extent to which COVID-19 will impact on our operations, results of operations, cash flows, financial condition or capital resources. It is possible that the continued spread of COVID-19 and efforts to contain the virus, such as quarantines or closures or reduced operations of businesses, governmental agencies and other institutions, will continue to cause an economic slowdown and possibly a recession, resulting in significant disruptions in various public, commercial or industrial activities and causing employee absences which could interfere with operation and maintenance of the Company’s facilities. Any of these circumstances could adversely affect our operations, results of operations, financial condition and cash flows in the following ways, including, but not limited to:
A decrease in customer demand and revenues due to a reduction in economic activity and possibly a recession,
An increase in operating expenses, including bad debt expense due to our customers’ inability to pay amounts due to us,
A negative impact on the ability of suppliers, vendors or contractors to perform, which could increase costs and delay capital projects,
Regulatory commissions may not approve our requests to defer and recover increased expenses,
Delays in regulatory filings and the regulatory approval process, which could impact our ability to timely recover our operating expenses and costs associated with investments in utility assets,

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An increase in cyber and technology risks, including the impact on internal controls, due to a significant number of employees working remotely,
A decrease in the fair value of pension plan assets or an increase in the pension liability, which could increase future pension plan funding requirements,
A decrease in the fair value of non-utility investments, which could result in losses or impairment,
A decrease in net operating cash inflows, which could negatively impact our liquidity and limit our ability to fund capital expenditures, dividends, and other contractual commitments,
Disruption, weakness and volatility in the financial markets, which could increase our costs to fund capital requirements,
To the extent that access to the capital markets is adversely affected, we may need to consider alternative sources of funding for operations and for working capital, any of which could increase our cost of capital.

We cannot predict the duration and severity of the COVID-19 global pandemic. The longer and more severe the economic restrictions and business disruption is, the greater the impact on our operations, results of operations, financial condition and cash flows will be.
In addition to these risk factors,factors, see alsoalso “Forward-Looking Statements” for additional factors which could have a significant impact on our operations, results of operations, financial condition or cash flows and could cause actual results to differ materially from those anticipated in such statements.
Item 6. Exhibits




101.INS
XBRL Instance Document. The instance document does not appear in the interactive data file because its XBRL tags are embedded within the inline XBRL document.
101.SCH
XBRL Taxonomy Extension Schema Document
101.CAL
XBRL Taxonomy Extension Calculation Linkbase Document
101.LAB
XBRL Taxonomy Extension Label Linkbase Document
101.PRE
XBRL Taxonomy Extension Presentation Linkbase Document
101.DEF
XBRL Taxonomy Extension Definition Linkbase Document
104
Cover page formatted as Inline XBRL and contained in Exhibit 101.
  
(1)Filed herewith.
(2)Furnished herewith.

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SIGNATURE
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.
 
   AVISTA CORPORATION
   (Registrant)
    
    
    
    
Date:August 6, 2019May 7, 2020 /s/    Mark T. Thies        
   Mark T. Thies
   
SeniorExecutive Vice President,
Chief Financial Officer, and Treasurer
(Principal Financial Officer)

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