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

FORM 10-Q

Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
For the quarterly period ended September 30, 2020.March 31, 2021.
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   001-13643

oke-20210331_g1.jpg
ONEOK, Inc.
(Exact name of registrant as specified in its charter)

Oklahoma73-1520922
(State or other jurisdiction of
incorporation or organization)
(I.R.S. Employer Identification No.)
 
100 West Fifth Street,Tulsa,OK74103
(Address of principal executive offices)(Zip Code)
Registrant’s telephone number, including area code   (918) 588-7000

Securities registered pursuant to Section 12(b) of the Act:
Title of each classTrading Symbol(s)Name of each exchange on which registered
Common stock, par value of $0.01OKENew York Stock Exchange
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes   No

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes   No

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, 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 Filer   Accelerated filer   Non-accelerated filer   Smaller 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

On OctoberApril 19, 2020,2021, the Company had 444,397,414445,536,572 shares of common stock outstanding.


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ONEOK, Inc.
TABLE OF CONTENTS
Page No.
 
 
 
 
 
 
 

As used in this Quarterly Report, references to “we,” “our” or “us” refer to ONEOK, Inc., an Oklahoma corporation, and its predecessors and subsidiaries, unless the context indicates otherwise.

The statements in this Quarterly Report that are not historical information, including statements concerning plans and objectives of management for future operations, economic performance or related assumptions, are forward-looking statements. Forward-looking statements may include words such as “anticipate,” “believe,” “continue,” “could,” “estimate,” “expect,” “forecast,” “goal,” “guidance,” “intend,” “may,” “might,” “outlook,” “plan,” “potential,” “project,” “scheduled,” “should,” “will,” “would” and other words and terms of similar meaning. Although we believe that our expectations regarding future events are based on reasonable assumptions, we can give no assurance that such expectations or assumptions will be achieved. Important factors that could cause actual results to differ materially from those in the forward-looking statements are described under Part I, Item 2, Management’s Discussion and Analysis of Financial Condition and Results of Operations “Forward-Looking Statements,” and Part II, Item 1A, “Risk Factors,” in this Quarterly Report and under Part I, Item 1A, “Risk Factors,” in our Annual Report.

INFORMATION AVAILABLE ON OUR WEBSITE

We make available, free of charge, on our website (www.oneok.com) copies of our Annual Reports, Quarterly Reports, Current Reports on Form 8-K, amendments to those reports filed or furnished to the SEC pursuant to Section 13(a) or 15(d) of the Exchange Act and reports of holdings of our securities filed by our officers and directors under Section 16 of the Exchange Act as soon as reasonably practicable after filing such material electronically or otherwise furnishing it to the SEC. Copies of our Code of Business Conduct and Ethics, Corporate Governance Guidelines, Director Independence Guidelines, Corporate Sustainability Report, Response to COVID-19 and the written charter of our Audit Committee also are available on our website, and we will provide copies of these documents upon request.

In addition to our filings with the SEC and materials posted on our website, we also use social media platforms as additional channels of distribution to reach public investors. Information contained on our website, posted on our social media accounts, and any corresponding applications, are not incorporated by reference into this report.
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GLOSSARY
The abbreviations, acronyms and industry terminology used in this Quarterly Report are defined as follows:
$1.5 Billion Term Loan AgreementThe senior unsecured delayed-draw three-year $1.5 billion term loan agreement dated November 19, 2018
$2.5 Billion Credit AgreementONEOK’s $2.5 billion revolving credit agreement, as amended
AFUDCAllowance for funds used during construction
Annual ReportAnnual Report on Form 10-K for the year ended December 31, 20192020
ASUAccounting Standards Update
BblBarrels, 1 barrel is equivalent to 42 United States gallons
BBtu/dBillion British thermal units per day
BcfBillion cubic feet
Bcf/dBillion cubic feet per day
CARES ActCoronavirus Aid, Relief, and Economic Security Act
CFTCU.S. Commodity Futures Trading Commission
Clean Air ActFederal Clean Air Act, as amended
COVID-19Coronavirus disease 2019
DJDenver-Julesburg
EBITDAEarnings before interest expense, income taxes, depreciation and amortization
EPAUnited States Environmental Protection Agency
EPSEarnings (loss) per share of common stock
Exchange ActSecurities Exchange Act of 1934, as amended
FERCFederal Energy Regulatory Commission
FitchFitch Ratings, Inc.
GAAPAccounting principles generally accepted in the United States of America
ICEIntercontinental Exchange
Intermediate PartnershipONEOK Partners Intermediate Limited Partnership, a wholly owned subsidiary of ONEOK Partners, L.P.
LIBORLondon Interbank Offered Rate
MBbl/dThousand barrels per day
MDth/dThousand dekatherms per day
MMBblMillion barrels
MMBbl/dMillion barrels per day
MMBtuMillion British thermal units
MMcf/dMillion cubic feet per day
Moody’sMoody’s Investors Service, Inc.
Natural Gas ActNatural Gas Act of 1938, as amended
NGL(s)Natural gas liquid(s)
NGL productsMarketable natural gas liquid purity products, such as ethane, ethane/propane mix, propane, iso-butane, normal butane and natural gasoline
Northern Border PipelineNorthern Border Pipeline Company, a 50% owned joint venture
NYMEXNew York Mercantile Exchange
ONEOKONEOK, Inc.
ONEOK PartnersONEOK Partners, L.P., a wholly owned subsidiary of ONEOK, Inc.
OPISOil Price Information Service
Overland Pass PipelineOverland Pass Pipeline Company, LLC, a 50% owned joint venture
PHMSAUnited States Department of Transportation Pipeline and Hazardous Materials Safety Administration
POPPercent of Proceeds
Quarterly Report(s)Quarterly Report(s) on Form 10-Q
RoadrunnerRoadrunner Gas Transmission, LLC, a 50% owned joint venture
S&PS&P Global Ratings
SECSecurities and Exchange Commission
Series E Preferred StockSeries E Non-Voting, Perpetual Preferred Stock, par value $0.01 per share
STACKSooner Trend Anadarko Canadian Kingfisher, an area in the Anadarko Basin in Oklahoma
West Texas LPGWest Texas LPG pipeline and Mesquite pipeline
WTIWest Texas Intermediate
XBRLeXtensible Business Reporting Language

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PART I - FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS

ONEOK, Inc. and SubsidiariesONEOK, Inc. and Subsidiaries    ONEOK, Inc. and Subsidiaries  
CONSOLIDATED STATEMENTS OF INCOMECONSOLIDATED STATEMENTS OF INCOME    CONSOLIDATED STATEMENTS OF INCOME  
Three Months EndedNine Months Ended Three Months Ended
September 30,September 30, March 31,
(Unaudited)
(Unaudited)
2020201920202019
(Unaudited)
20212020
(Thousands of dollars, except per share amounts)
(Thousands of dollars, except per share amounts)
RevenuesRevenuesRevenues
Commodity salesCommodity sales$1,852,198 $1,947,834 $5,004,375 $6,567,634 Commodity sales$2,836,109 $1,808,620 
ServicesServices322,066 315,394 967,290 933,127 Services358,570 328,052 
Total revenues (Note L)2,174,264 2,263,228 5,971,665 7,500,761 
Total revenues (Note K)Total revenues (Note K)3,194,679 2,136,672 
Cost of sales and fuel (exclusive of items shown separately below)Cost of sales and fuel (exclusive of items shown separately below)1,265,674 1,414,528 3,483,060 4,996,699 Cost of sales and fuel (exclusive of items shown separately below)2,121,510 1,276,928 
Operations and maintenanceOperations and maintenance173,548 218,305 538,782 632,332 Operations and maintenance207,158 175,096 
Depreciation and amortizationDepreciation and amortization153,245 121,430 426,014 350,552 Depreciation and amortization157,120 132,353 
Impairment charges (Note A)0 604,024 
Impairment chargesImpairment charges0 604,024 
General taxesGeneral taxes31,381 26,830 97,651 91,257 General taxes44,439 31,944 
(Gain) loss on sale of assets(17)(16)(560)2,882 
Operating income550,433 482,151 822,694 1,427,039 
Gain on sale of assetsGain on sale of assets(269)(204)
Operating income (loss)Operating income (loss)664,721 (83,469)
Equity in net earnings from investments (Note I)Equity in net earnings from investments (Note I)38,046 37,576 108,001 115,175 Equity in net earnings from investments (Note I)33,320 44,627 
Impairment of equity investments (Note A)0 (37,730)
Impairment of equity investmentsImpairment of equity investments0 (37,730)
Allowance for equity funds used during constructionAllowance for equity funds used during construction3,084 15,792 22,347 45,175 Allowance for equity funds used during construction812 15,409 
Other incomeOther income8,175 6,643 34,390 21,685 Other income215 16,475 
Other expenseOther expense(4,496)(6,065)(14,667)(14,024)Other expense(5,237)(11,948)
Interest expense (net of capitalized interest of $13,821, $27,610, $61,439 and $73,601, respectively)(176,371)(129,577)(535,955)(362,490)
Income before income taxes418,871 406,520 399,080 1,232,560 
Income taxes(106,555)(97,365)(94,300)(274,234)
Net income312,316 309,155 304,780 958,326 
Interest expense (net of capitalized interest of $5,095 and $30,875, respectively)Interest expense (net of capitalized interest of $5,095 and $30,875, respectively)(185,523)(140,616)
Income (loss) before income taxesIncome (loss) before income taxes508,308 (197,252)
Income tax (expense) benefitIncome tax (expense) benefit(122,132)55,395 
Net income (loss)Net income (loss)386,176 (141,857)
Less: Preferred stock dividendsLess: Preferred stock dividends275 275 825 825 Less: Preferred stock dividends275 275 
Net income available to common shareholders$312,041 $308,880 $303,955 $957,501 
Net income (loss) available to common shareholdersNet income (loss) available to common shareholders$385,901 $(142,132)
    
Basic earnings per common share (Note G)$0.70 $0.75 $0.71 $2.32 
Basic EPS (Note G)Basic EPS (Note G)$0.87 $(0.34)
Diluted earnings per common share (Note G)$0.70 $0.74 $0.71 $2.31 
Diluted EPS (Note G)Diluted EPS (Note G)$0.86 $(0.34)
Average shares (thousands)
Average shares (thousands)
Average shares (thousands)
BasicBasic445,103 413,816 426,369 413,443 Basic445,894 414,282 
DilutedDiluted445,510 415,578 426,997 415,277 Diluted446,885 414,282 
See accompanying Notes to Consolidated Financial Statements.
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ONEOK, Inc. and Subsidiaries    
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
 Three Months EndedNine Months Ended
 September 30,September 30,
(Unaudited)
2020201920202019
 
(Thousands of dollars)
Net income$312,316 $309,155 $304,780 $958,326 
Other comprehensive income (loss), net of tax  
Change in fair value of derivatives, net of tax of $4,704, $22,050, $50,307 and $59,679, respectively(15,750)(73,822)(168,421)(199,795)
Derivative amounts reclassified to net income, net of tax of $(3,038), $2,673, $(3,360) and $8,654, respectively5,361 (8,952)11,210 (29,748)
Change in retirement and other postretirement benefit plan obligations, net of tax of $(1,064), $(737), $(3,192) and $(2,172), respectively3,562 2,465 10,685 7,271 
Other comprehensive income (loss) of unconsolidated affiliates, net of tax of $(332), $1,314, $3,015 and $3,164, respectively1,112 (4,399)(10,092)(10,593)
Total other comprehensive loss, net of tax(5,715)(84,708)(156,618)(232,865)
Comprehensive income$306,601 $224,447 $148,162 $725,461 
ONEOK, Inc. and Subsidiaries  
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
 Three Months Ended
 March 31,
(Unaudited)
20212020
 
(Thousands of dollars)
Net income (loss)$386,176 $(141,857)
Other comprehensive income (loss), net of tax 
Change in fair value of derivatives, net of tax of $(9,857) and $31,705, respectively32,998 (106,141)
Derivative amounts reclassified to net income (loss), net of tax of $(12,361) and $4,518, respectively41,387 (15,164)
Change in retirement and other postretirement benefit plan obligations, net of tax of $(1,087) and $(1,064), respectively3,638 3,562 
Other comprehensive income (loss) of unconsolidated affiliates, net of tax of $(2,339) and $2,283, respectively7,830 (7,643)
Total other comprehensive income (loss), net of tax85,853 (125,386)
Comprehensive income (loss)$472,029 $(267,243)
See accompanying Notes to Consolidated Financial Statements.
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ONEOK, Inc. and SubsidiariesONEOK, Inc. and Subsidiaries  ONEOK, Inc. and Subsidiaries  
CONSOLIDATED BALANCE SHEETSCONSOLIDATED BALANCE SHEETS  CONSOLIDATED BALANCE SHEETS  
September 30,December 31,March 31,December 31,
(Unaudited)
(Unaudited)
20202019
(Unaudited)
20212020
AssetsAssets
(Thousands of dollars)
Assets
(Thousands of dollars)
Current assetsCurrent assets  Current assets  
Cash and cash equivalentsCash and cash equivalents$447,129 $20,958 Cash and cash equivalents$402,413 $524,496 
Accounts receivable, netAccounts receivable, net717,852 835,121 Accounts receivable, net909,972 829,796 
Materials and suppliesMaterials and supplies158,950 201,749 Materials and supplies143,583 143,178 
NGLs and natural gas in storageNGLs and natural gas in storage300,577 304,926 NGLs and natural gas in storage369,604 227,810 
Commodity imbalancesCommodity imbalances13,289 25,267 Commodity imbalances16,798 11,959 
Other current assetsOther current assets83,565 82,313 Other current assets155,224 132,536 
Total current assetsTotal current assets1,721,362 1,470,334 Total current assets1,997,594 1,869,775 
Property, plant and equipmentProperty, plant and equipment  Property, plant and equipment 
Property, plant and equipmentProperty, plant and equipment22,803,167 22,051,492 Property, plant and equipment23,192,548 23,072,935 
Accumulated depreciation and amortizationAccumulated depreciation and amortization3,773,852 3,702,807 Accumulated depreciation and amortization4,067,297 3,918,007 
Net property, plant and equipmentNet property, plant and equipment19,029,315 18,348,685 Net property, plant and equipment19,125,251 19,154,928 
Investments and other assetsInvestments and other assets  Investments and other assets 
Investments in unconsolidated affiliates (Note A)790,373 861,844 
Goodwill and intangible assets (Note A)776,330 957,833 
Investments in unconsolidated affiliatesInvestments in unconsolidated affiliates807,721 805,032��
Goodwill and intangible assetsGoodwill and intangible assets771,116 773,723 
Other assetsOther assets463,496 173,425 Other assets478,247 475,296 
Total investments and other assetsTotal investments and other assets2,030,199 1,993,102 Total investments and other assets2,057,084 2,054,051 
Total assetsTotal assets$22,780,876 $21,812,121 Total assets$23,179,929 $23,078,754 

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ONEOK, Inc. and SubsidiariesONEOK, Inc. and SubsidiariesONEOK, Inc. and Subsidiaries
CONSOLIDATED BALANCE SHEETSCONSOLIDATED BALANCE SHEETSCONSOLIDATED BALANCE SHEETS
(Continued)(Continued)(Continued)
September 30,December 31,March 31,December 31,
(Unaudited)
(Unaudited)
20202019
(Unaudited)
20212020
Liabilities and equityLiabilities and equity
(Thousands of dollars)
Liabilities and equity
(Thousands of dollars)
Current liabilitiesCurrent liabilities  Current liabilities  
Current maturities of long-term debt (Note D)Current maturities of long-term debt (Note D)$7,650 $7,650 Current maturities of long-term debt (Note D)$543,757 $7,650 
Short-term borrowings (Note D)0 220,000 
Accounts payableAccounts payable624,483 1,209,900 Accounts payable929,771 719,302 
Commodity imbalancesCommodity imbalances125,955 104,480 Commodity imbalances209,626 186,372 
Accrued taxesAccrued taxes103,778 75,422 Accrued taxes65,862 89,428 
Accrued interestAccrued interest140,506 190,750 Accrued interest140,281 245,153 
Operating lease liability (Note K)13,646 1,883 
Operating lease liabilityOperating lease liability13,408 13,610 
Other current liabilitiesOther current liabilities78,124 210,213 Other current liabilities145,249 83,032 
Total current liabilitiesTotal current liabilities1,094,142 2,020,298 Total current liabilities2,047,954 1,344,547 
Long-term debt, excluding current maturities (Note D)Long-term debt, excluding current maturities (Note D)14,249,339 12,479,757 Long-term debt, excluding current maturities (Note D)13,638,767 14,228,421 
Deferred credits and other liabilitiesDeferred credits and other liabilitiesDeferred credits and other liabilities
Deferred income taxesDeferred income taxes582,334 536,063 Deferred income taxes814,528 669,697 
Operating lease liability (Note K)90,806 13,509 
Operating lease liabilityOperating lease liability85,295 87,610 
Other deferred creditsOther deferred credits618,143 536,543 Other deferred credits496,420 706,081 
Total deferred credits and other liabilitiesTotal deferred credits and other liabilities1,291,283 1,086,115 Total deferred credits and other liabilities1,396,243 1,463,388 
Commitments and contingencies (Note J)Commitments and contingencies (Note J)Commitments and contingencies (Note J)00
Equity (Note E)Equity (Note E)  Equity (Note E) 
ONEOK shareholders’ equity:ONEOK shareholders’ equity: ONEOK shareholders’ equity:
Preferred stock, $0.01 par value:
authorized and issued 20,000 shares at September 30, 2020, and December 31, 2019
0 
Common stock, $0.01 par value:
authorized 1,200,000,000 shares, issued 474,916,234 shares and outstanding
444,392,615 shares at September 30, 2020; issued 445,016,234 shares and outstanding
413,239,050 shares at December 31, 2019
4,749 4,450 
Preferred stock, $0.01 par value:
authorized and issued 20,000 shares at March 31, 2021, and December 31, 2020
Preferred stock, $0.01 par value:
authorized and issued 20,000 shares at March 31, 2021, and December 31, 2020
0 
Common stock, $0.01 par value:
authorized 1,200,000,000 shares; issued 474,916,234 shares and outstanding
445,534,180 shares at March 31, 2021; issued 474,916,234 shares and outstanding
444,872,383 shares at December 31, 2020
Common stock, $0.01 par value:
authorized 1,200,000,000 shares; issued 474,916,234 shares and outstanding
445,534,180 shares at March 31, 2021; issued 474,916,234 shares and outstanding
444,872,383 shares at December 31, 2020
4,749 4,749 
Paid-in capitalPaid-in capital7,448,484 7,403,895 Paid-in capital7,305,274 7,353,396 
Accumulated other comprehensive loss (Note F)Accumulated other comprehensive loss (Note F)(530,618)(374,000)Accumulated other comprehensive loss (Note F)(465,596)(551,449)
Retained earningsRetained earnings0 Retained earnings0 
Treasury stock, at cost: 30,523,619 shares at September 30, 2020, and
31,777,184 shares at December 31, 2019
(776,503)(808,394)
Treasury stock, at cost: 29,382,054 shares at March 31, 2021, and
30,043,851 shares at December 31, 2020
Treasury stock, at cost: 29,382,054 shares at March 31, 2021, and
30,043,851 shares at December 31, 2020
(747,462)(764,298)
Total equityTotal equity6,146,112 6,225,951 Total equity6,096,965 6,042,398 
Total liabilities and equityTotal liabilities and equity$22,780,876 $21,812,121 Total liabilities and equity$23,179,929 $23,078,754 
See accompanying Notes to Consolidated Financial Statements.

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ONEOK, Inc. and SubsidiariesONEOK, Inc. and Subsidiaries  ONEOK, Inc. and Subsidiaries  
CONSOLIDATED STATEMENTS OF CASH FLOWSCONSOLIDATED STATEMENTS OF CASH FLOWS  CONSOLIDATED STATEMENTS OF CASH FLOWS  
Nine Months Ended Three Months Ended
September 30, March 31,
(Unaudited)
(Unaudited)
20202019
(Unaudited)
20212020
(Thousands of dollars)
(Thousands of dollars)
Operating activitiesOperating activities  Operating activities  
Net income$304,780 $958,326 
Adjustments to reconcile net income to net cash provided by operating activities:
Net income (loss)Net income (loss)$386,176 $(141,857)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortizationDepreciation and amortization426,014 350,552 Depreciation and amortization157,120 132,353 
Impairment chargesImpairment charges641,754 Impairment charges0 641,754 
Equity in net earnings from investmentsEquity in net earnings from investments(108,001)(115,175)Equity in net earnings from investments(33,320)(44,627)
Distributions received from unconsolidated affiliatesDistributions received from unconsolidated affiliates109,595 121,176 Distributions received from unconsolidated affiliates30,862 41,577 
Deferred income tax expense93,174 269,488 
Deferred income tax expense (benefit)Deferred income tax expense (benefit)119,194 (55,949)
Other, netOther, net(17,599)(18,337)Other, net11,672 (30,380)
Changes in assets and liabilities:Changes in assets and liabilities: Changes in assets and liabilities: 
Accounts receivableAccounts receivable111,629 100,250 Accounts receivable(85,212)334,370 
NGLs and natural gas in storageNGLs and natural gas in storage4,349 13,122 NGLs and natural gas in storage(141,794)173,885 
Accounts payableAccounts payable(198,809)(162,806)Accounts payable251,344 (350,701)
Commodity imbalancesCommodity imbalances18,415 (37,919)
Accrued interestAccrued interest(50,244)(39,314)Accrued interest(104,872)(68,918)
Risk-management assets and liabilitiesRisk-management assets and liabilities(136,543)(93,244)Risk-management assets and liabilities(19,302)(78,856)
Other assets and liabilities, net(76,971)(57,193)
Other assets and liabilitiesOther assets and liabilities(56,966)(92,011)
Cash provided by operating activitiesCash provided by operating activities1,103,128 1,326,845 Cash provided by operating activities533,317 422,721 
Investing activitiesInvesting activities Investing activities 
Capital expenditures (less allowance for equity funds used during construction)Capital expenditures (less allowance for equity funds used during construction)(1,924,003)(2,739,338)Capital expenditures (less allowance for equity funds used during construction)(176,734)(949,679)
Distributions received from unconsolidated affiliates in excess of cumulative earningsDistributions received from unconsolidated affiliates in excess of cumulative earnings22,280 82,171 Distributions received from unconsolidated affiliates in excess of cumulative earnings10,191 6,949 
Other, netOther, net(80,148)9,293 Other, net(4,148)(22,062)
Cash used in investing activitiesCash used in investing activities(1,981,871)(2,647,874)Cash used in investing activities(170,691)(964,792)
Financing activitiesFinancing activities Financing activities 
Dividends paidDividends paid(1,189,575)(1,079,379)Dividends paid(416,229)(386,667)
Repayment of short-term borrowings, netRepayment of short-term borrowings, net(220,000)Repayment of short-term borrowings, net0 (220,000)
Issuance of long-term debt, net of discountsIssuance of long-term debt, net of discounts3,244,777 4,185,435 Issuance of long-term debt, net of discounts0 1,748,221 
Debt financing costsDebt financing costs(28,324)(29,777)Debt financing costs0 (15,444)
Repayment of long-term debtRepayment of long-term debt(1,433,480)(1,055,436)Repayment of long-term debt(56,492)(52,389)
Issuance of common stock959,653 19,333 
Other(28,137)(57,813)
Cash provided by financing activities1,304,914 1,982,363 
Other, netOther, net(11,988)(20,978)
Cash provided by (used in) financing activitiesCash provided by (used in) financing activities(484,709)1,052,743 
Change in cash and cash equivalentsChange in cash and cash equivalents426,171 661,334 Change in cash and cash equivalents(122,083)510,672 
Cash and cash equivalents at beginning of periodCash and cash equivalents at beginning of period20,958 11,975 Cash and cash equivalents at beginning of period524,496 20,958 
Cash and cash equivalents at end of periodCash and cash equivalents at end of period$447,129 $673,309 Cash and cash equivalents at end of period$402,413 $531,630 
See accompanying Notes to Consolidated Financial Statements.
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ONEOK, Inc. and SubsidiariesONEOK, Inc. and Subsidiaries  ONEOK, Inc. and Subsidiaries  
CONSOLIDATED STATEMENTS OF CHANGES IN EQUITYCONSOLIDATED STATEMENTS OF CHANGES IN EQUITY CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY 
(Unaudited)
(Unaudited)
Common
Stock Issued
Preferred
Stock Issued
Common
Stock
Preferred
Stock
Paid-in
Capital
(Unaudited)
Preferred
Stock Issued
Common
Stock Issued
Preferred
Stock
Common
Stock
Paid-in
Capital
(Shares)
(Thousands of dollars)
(Shares)
(Thousands of dollars)
January 1, 2020445,016,234 20,000 $4,450 $$7,403,895 
Net loss  0 0 0 
Other comprehensive loss (Note F)  0 0 0 
January 1, 2021January 1, 202120,000 474,916,234 $$4,749 $7,353,396 
Net incomeNet income  0 0 0 
Other comprehensive income (Note F)Other comprehensive income (Note F)  0 0 0 
Preferred stock dividends - $13.75 per share (Note E)Preferred stock dividends - $13.75 per share (Note E)  0 0 (275)Preferred stock dividends - $13.75 per share (Note E)  0 0 0 
Common stock issuedCommon stock issued0  0 0 (9,286)Common stock issued 0 0 0 (10,159)
Common stock dividends - $0.935 per share (Note E)Common stock dividends - $0.935 per share (Note E)  0 0 (386,931)Common stock dividends - $0.935 per share (Note E)  0 0 (30,234)
Other, netOther, net  0 0 (17,950)Other, net  0 0 (7,729)
March 31, 2020445,016,234 20,000 $4,450 $0 $6,989,453 
Net income  0 0 0 
Other comprehensive loss (Note F)  0 0 0 
Preferred stock dividends - $13.75 per share (Note E)  0 0 (275)
Common stock issued29,900,000  299 0 939,038 
Common stock dividends - $0.935 per share (Note E)  0 0 (387,037)
Other, net  0 0 8,652 
June 30, 2020474,916,234 20,000 $4,749 $0 $7,549,831 
Net income  0 0 0 
Other comprehensive loss (Note F)  0 0 0 
Preferred stock dividends - $13.75 per share (Note E)  0 0 0 
Common stock issued0  0 0 803 
Common stock dividends - $0.935 per share (Note E)  0 0 (110,948)
Other, net  0 0 8,798 
September 30, 2020474,916,234 20,000 $4,749 $0 $7,448,484 
March 31, 2021March 31, 202120,000 474,916,234 $0 $4,749 $7,305,274 

(Unaudited)
Preferred
Stock Issued
Common
Stock Issued
Preferred
Stock
Common
Stock
Paid-in
Capital
 
(Shares)
(Thousands of dollars)
January 1, 202020,000 445,016,234 $$4,450 $7,403,895 
Net loss— — 
Other comprehensive loss— — 
Preferred stock dividends - $13.75 per share— — (275)
Common stock issued— (9,286)
Common stock dividends - $0.935 per share— — (386,931)
Other, net— — (17,950)
March 31, 202020,000 445,016,234 $$4,450 $6,989,453 
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ONEOK, Inc. and SubsidiariesONEOK, Inc. and Subsidiaries  ONEOK, Inc. and Subsidiaries  
CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Continued)CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Continued) CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Continued) 
(Unaudited)
(Unaudited)
Accumulated
Other
Comprehensive
Loss
Retained
Earnings
(Accumulated
Deficit)
Treasury
Stock
Total
Equity
(Unaudited)
Accumulated
Other
Comprehensive
Loss
Retained
Earnings
Treasury
Stock
Total
Equity
(Thousands of dollars)
(Thousands of dollars)
January 1, 2020$(374,000)$$(808,394)$6,225,951 
Net loss0 (141,857)0 (141,857)
Other comprehensive loss (Note F)(125,386)0 0 (125,386)
January 1, 2021January 1, 2021$(551,449)$$(764,298)$6,042,398 
Net incomeNet income0 386,176 0 386,176 
Other comprehensive income (Note F)Other comprehensive income (Note F)85,853 0 0 85,853 
Preferred stock dividends - $13.75 per share (Note E)Preferred stock dividends - $13.75 per share (Note E)0 0 0 (275)Preferred stock dividends - $13.75 per share (Note E)0 (275)0 (275)
Common stock issuedCommon stock issued0 0 16,375 7,089 Common stock issued0 0 16,836 6,677 
Common stock dividends - $0.935 per share (Note E)Common stock dividends - $0.935 per share (Note E)0 0 0 (386,931)Common stock dividends - $0.935 per share (Note E)0 (385,901)0 (416,135)
Other, netOther, net0 0 0 (17,950)Other, net0 0 0 (7,729)
March 31, 2020$(499,386)$(141,857)$(792,019)$5,560,641 
Net income0 134,321 0 134,321 
Other comprehensive loss (Note F)(25,517)0 0 (25,517)
Preferred stock dividends - $13.75 per share (Note E)0 0 0 (275)
Common stock issued0 0 10,530 949,867 
Common stock dividends - $0.935 per share (Note E)0 0 0 (387,037)
Other, net0 0 0 8,652 
June 30, 2020$(524,903)$(7,536)$(781,489)$6,240,652 
Net income0 312,316 0 312,316 
Other comprehensive loss (Note F)(5,715)0 0 (5,715)
Preferred stock dividends - $13.75 per share (Note E)0 (275)0 (275)
Common stock issued0 0 4,986 5,789 
Common stock dividends - $0.935 per share (Note E)0 (304,505)0 (415,453)
Other, net0 0 0 8,798 
September 30, 2020$(530,618)$0 $(776,503)$6,146,112 
March 31, 2021March 31, 2021$(465,596)$0 $(747,462)$6,096,965 

(Unaudited)
Accumulated
Other
Comprehensive
Loss
Retained Earnings
(Accumulated
Deficit)
Treasury
Stock
Total
Equity
 
(Thousands of dollars)
January 1, 2020$(374,000)$$(808,394)$6,225,951 
Net loss(141,857)(141,857)
Other comprehensive loss(125,386)(125,386)
Preferred stock dividends - $13.75 per share(275)
Common stock issued16,375 7,089 
Common stock dividends - $0.935 per share(386,931)
Other, net(17,950)
March 31, 2020$(499,386)$(141,857)$(792,019)$5,560,641 
See accompanying Notes to Consolidated Financial Statements.
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ONEOK, Inc. and Subsidiaries
CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Continued)
(Unaudited)
Common
Stock Issued
Preferred
Stock Issued
Common
Stock
Preferred
Stock
Paid-in
Capital
 
(Shares)
(Thousands of dollars)
January 1, 2019445,016,234 20,000 $4,450 $$7,615,138 
Cumulative effect adjustment for adoption of ASU 2016-02, “Leases (Topic 842)”— — 
Net income— — 
Other comprehensive loss— — 
Preferred stock dividends - $13.75 per share— — 
Common stock issued— — (24,779)
Common stock dividends - $0.86 per share— — (17,438)
Other, net— — (45,074)
March 31, 2019445,016,234 20,000 $4,450 $$7,527,847 
Net income— — 
Other comprehensive loss— — 
Preferred stock dividends - $13.75 per share— — 
Common stock issued— — 6,335 
Common stock dividends - $0.865 per share— — (45,728)
Other, net— — 7,004 
June 30, 2019445,016,234 20,000 $4,450 $$7,495,458 
Net income— — 
Other comprehensive loss— — 
Preferred stock dividends - $13.75 per share— — 
Common stock issued— — 4,238 
Common stock dividends - $0.89 per share— — (58,960)
Other, net— — 7,363 
September 30, 2019445,016,234 20,000 $4,450 $$7,448,099 

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ONEOK, Inc. and Subsidiaries 
CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Continued)
(Unaudited)
Accumulated
Other
Comprehensive
Loss
Retained
Earnings
Treasury
Stock
Total
Equity
 
(Thousands of dollars)
January 1, 2019$(188,239)$$(851,806)$6,579,543 
Cumulative effect adjustment for adoption of ASU 2016-02, “Leases (Topic 842)”(67)(67)
Net income337,208 337,208 
Other comprehensive loss(81,285)(81,285)
Preferred stock dividends - $13.75 per share(275)(275)
Common stock issued31,039 6,260 
Common stock dividends - $0.86 per share(336,866)(354,304)
Other, net(45,074)
March 31, 2019$(269,524)$$(820,767)$6,442,006 
Net income311,963 311,963 
Other comprehensive loss(66,872)(66,872)
Preferred stock dividends - $13.75 per share(275)(275)
Common stock issued5,391 11,726 
Common stock dividends - $0.865 per share(311,688)(357,416)
Other, net7,004 
June 30, 2019$(336,396)$$(815,376)$6,348,136 
Net income309,155 309,155 
Other comprehensive loss(84,708)(84,708)
Preferred stock dividends - $13.75 per share(275)(275)
Common stock issued2,837 7,075 
Common stock dividends - $0.89 per share(308,880)(367,840)
Other, net7,363 
September 30, 2019$(421,104)$$(812,539)$6,218,906 
See accompanying Notes to Consolidated Financial Statements.
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ONEOK, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Unaudited)

A.    SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Our accompanying unaudited Consolidated Financial Statements have been prepared pursuant to the rules and regulations of the SEC. These statements have been prepared in accordance with GAAP and reflect all adjustments that, in our opinion, are necessary for a fair statement of the results for the interim periods presented. All such adjustments are of a normal recurring nature. The 20192020 year-end Consolidated Balance Sheet data was derived from our audited Consolidated Financial Statements but does not include all disclosures required by GAAP. Certain reclassifications have been made in the prior year Consolidated Financial Statements to conform to the current year presentation. These unaudited Consolidated Financial Statements should be read in conjunction with our audited Consolidated Financial Statements in our Annual Report.

In March 2020, the CARES Act was signed into law in response to the COVID-19 pandemic, and we opted into the CARES Act payroll tax deferral program, which will modestly benefit us, and the 401(k) penalty-free hardship withdrawal and loan deferral programs for employees.

Goodwill Impairment Review - We assess our goodwill for impairment at least annually as of July 1, unless events or changes in circumstances indicate an impairment may have occurred before that time. At July 1, 2020, we assessed qualitative factors subsequent to our first quarter 2020 impairment charges discussed below, to determine whether it was more likely than not that the fair value of our Natural Gas Liquids and Natural Gas Pipelines reporting units were less than their carrying amount. After assessing qualitative factors (including macroeconomic conditions, industry and market considerations, cost factors and overall financial performance), we determined that it was more likely than not that the fair value of our Natural Gas Liquids and Natural Gas Pipelines reporting units were not less than their respective carrying value, no further testing was necessary and goodwill was not considered impaired. At July 1, 2020, there was no remaining goodwill associated with our Natural Gas Gathering and Processing reporting unit.

Impairment Charges - Late in the first quarter 2020, we experienced a significant decline in our share price and market capitalization as the energy industry experienced historic events that led to a simultaneous demand and supply disruption. The World Health Organization declared COVID-19 a global pandemic and recommended containment and mitigation measures worldwide, which contributed to a massive economic slowdown and decreased demand for crude oil. In addition, Saudi Arabia and Russia increased production of crude oil as the two countries competed for market share. As a result, the global supply of crude oil significantly exceeded demand and led to a collapse in crude oil prices. Based on these events, we performed a Step 1 analysis in the first quarter 2020 to test our goodwill for impairment and evaluated certain long-lived asset groups and equity investments for impairment.

Goodwill - In the Step 1 analysis, an assessment is made by comparing the fair value of a reporting unit with its carrying amount, including goodwill. If the carrying value of a reporting unit exceeds its fair value, an impairment loss is recognized in an amount equal to that excess, limited to the total amount of goodwill allocated to that reporting unit. In January 2020, we adopted ASU 2017-04 in which the requirement to calculate the implied fair value of goodwill under the two-step impairment test was eliminated.

To estimate the fair value of our reporting units, we use two generally accepted valuation approaches, an income approach and a market approach, using assumptions consistent with a market participant’s perspective. Under the income approach, we use anticipated cash flows over a period of years plus a terminal value and discount these amounts to their present value using appropriate discount rates. Under the market approach, we apply EBITDA multiples to forecasted EBITDA. The multiples used are consistent with historical asset transactions. The forecasted cash flows are based on average forecasted cash flows for a reporting unit over a period of years.

Based on the results of our impairment test, we concluded that the carrying value of the Natural Gas Gathering and Processing reporting unit exceeded its estimated fair value, resulting in a noncash impairment charge of $153.4 million, which is included within impairment charges in our Consolidated Statement of Income for the nine months ended September 30, 2020. The estimated fair value of our Natural Gas Liquids and Natural Gas Pipelines reporting units substantially exceeded their respective carrying values.

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The following table sets forth our goodwill, by segment, for the periods indicated:
September 30,
2020
December 31,
2019
 
(Thousands of dollars)
Natural Gas Gathering and Processing$0 $153,404 
Natural Gas Liquids371,217 371,217 
Natural Gas Pipelines156,375 156,375 
Total goodwill$527,592 $680,996 

Long-lived assets - We assess our long-lived assets for impairment whenever events or changes in circumstances indicate that an asset’s carrying amount may not be recoverable. An impairment is indicated if the carrying amount of a long-lived asset exceeds the sum of the undiscounted future cash flows expected to result from the use and eventual disposition of the asset. If an impairment is indicated, we record an impairment loss equal to the difference between the carrying value and the fair value of the long-lived asset.

In the first quarter 2020, we evaluated our Natural Gas Gathering and Processing segment asset groups and determined that the carrying value of certain long-lived asset groups in western Oklahoma, Kansas and the Powder River Basin, where lower pricing impacted drilling and production levels, were not recoverable and exceeded their estimated fair value. We recorded noncash impairment charges of $380.5 million, which includes impairment to intangible assets of $19.9 million related to supply contracts. In our Natural Gas Liquids segment, we recorded noncash impairment charges of $70.2 million related to certain inactive assets, as our expectation for future use of the assets changed. These charges are included within impairment charges in our Consolidated Statement of Income for the nine months ended September 30, 2020.

Investments in unconsolidated affiliates - The impairment test for equity-method investments considers whether the fair value of the equity investment as a whole, not the underlying net assets, has declined and whether that decline is other than temporary. Therefore, we periodically evaluate the amount at which we carry our equity-method investments to determine whether current events or circumstances warrant adjustments to our carrying values.

In the first quarter 2020, we evaluated our investments in unconsolidated affiliates and concluded that the carrying value of our 10.2% investment in Venice Energy Services Company in our Natural Gas Gathering and Processing segment exceeded its estimated fair value, resulting in a noncash impairment charge of $30.5 million, which includes an impairment to our equity-method goodwill of $22.3 million. We also concluded that the carrying value of our 50% investment in Chisholm Pipeline Company in our Natural Gas Liquids segment exceeded its estimated fair value, resulting in a noncash impairment charge of $7.2 million. These impairment charges are included within impairment of equity investments in our Consolidated Statement of Income for the nine months ended September 30, 2020.

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Recently Issued Accounting Standards Update - Changes to GAAP are established by the Financial Accounting Standards Board (FASB) in the form of ASUs to the FASB Accounting Standards Codification. We consider the applicability and impact of all ASUs. ASUs not listeddiscussed below or in our Annual Report were assessed and determined to be either not applicable or clarifications of ASUs previously issued or listed below.issued. Except as discussed below or in our Annual Report, there have been no new accounting pronouncements that have become effective or have been issued that are of significance or potential significance to us. The following table provides a brief description of recently

In January 2021, we adopted accounting pronouncements and our analysis ofASU 2019-12, “Income Taxes (Topic 740): Simplifying the effects on our financial statements:
StandardDescriptionDate of AdoptionEffect on the Financial Statements or Other Significant Matters
ASU 2016-13, “Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments”
The standard requires a financial asset (or a group of financial assets) measured at amortized cost basis to be presented net of the allowance for credit losses to reflect the net carrying value at the amount expected to be collected on the financial asset; and the initial allowance for credit losses for purchased financial assets, including available-for-sale debt securities, to be added to the purchase price rather than being reported as a credit loss expense.First quarter 2020Accounting for Income Taxes,” which simplifies certain concepts in Topic 740, Income Taxes. The impact of adopting this standard was not material.
ASU 2017-04, “Intangibles- Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment”
The standard simplifies the subsequent measurement of goodwill by eliminating the requirement to calculate the implied fair value of goodwill under step 2. Instead, an entity will recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value. The standard does not change step zero or step 1 assessments.First quarter 2020We adopted and implemented this standard prior to recording noncash impairment charges related to our goodwill, as described above.
ASU 2020-04, “Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting”The standard provides optional expedients and exceptions for applying U.S. GAAP to contracts, hedging relationships and other transactions affected by reference rate reform if certain criteria are met.First quarter 2020The impact of adopting this standard was not material.

B.    FAIR VALUE MEASUREMENTS

Determining Fair Value - For our fair value measurements, we utilize market prices, third-party pricing services, present value methods and standard option valuation models to determine the price we would receive from the sale of an asset or the transfer of a liability in an orderly transaction at the measurement date. We measure the fair value of a group of financial assets and liabilities consistent with how a market participant would price the net risk exposure at the measurement date.

Many of the contracts in our derivative portfolio are executed in liquid markets where price transparency exists. Our financial commodity derivatives are generally settled through a NYMEX or Intercontinental Exchange (ICE)ICE clearing broker account with daily margin requirements. We validate our valuation inputs with third-party information and settlement prices from other sources, where available.

We compute the fair value of our derivative portfolio by discounting the projected future cash flows from our derivative assets and liabilities to present value using interest-rate yields to calculate present-value discount factors derived from the implied forward LIBOR yield curve. The fair value of our forward-starting interest-rate swaps is determined using financial models that incorporate the implied forward LIBOR yield curve for the same period as the future interest-rate swap settlements. We consider current market data in evaluating counterparties’, as well as our own, nonperformance risk, net of collateral, by using counterparty-specific bond yields. Although we use our best estimates to determine the fair value of the derivative contracts we have executed, the ultimate market prices realized could differ materially from our estimates.

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Fair Value Hierarchy - At each balance sheet date, we utilize a fair value hierarchy to classify fair value amounts recognized or disclosed in our financial statements based on the observability of inputs used to estimate such fair value. The levels of the hierarchy are described below:
Level 1 - fair value measurements are based on unadjusted quoted prices for identical securities in active markets. These balances are composed predominantly of exchange-traded derivative contracts for natural gas and crude oil.
Level 2 - fair value measurements are based on significant observable pricing inputs, including quoted prices for similar assets and liabilities in active markets and inputs from third-party pricing services supported with corroborative evidence. These balances are composed of over-the-counter interest-rate derivatives.
Level 3 - fair value measurements are based on inputs that may include one or more unobservable inputs, including internally developed commodity price curves that incorporate market data from broker quotes and third-party pricing services. These balances are composed predominantly of exchange-cleared and over-the-counter derivatives to hedge NGL price risk and natural gas basis risk between various transaction locations and the NYMEX Henry Hub. Our commodity derivatives are generally valued using forward quotes provided by third-party pricing services that are validated with other market data. We believe any measurement uncertainty at September 30, 2020,March 31, 2021, is immaterial as our Level 3 fair value measurements are based on unadjusted pricing information from broker quotes and third-party
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pricing services. We do not believe that our Level 3 fair value estimates have a material impact on our results of operations, as our derivatives are primarily accounted for as hedges.

Determining the appropriate classification of our fair value measurements within the fair value hierarchy requires management’s judgment regarding the degree to which market data is observable or corroborated by observable market data. We categorize derivatives for which fair value is determined using multiple inputs within a single level, based on the lowest level input that is significant to the fair value measurement in its entirety.

Recurring Fair Value Measurements - The following tables set forth our recurring fair value measurements for the periods indicated:
September 30, 2020 March 31, 2021
Level 1Level 2Level 3Total - GrossNetting (a)Total - Net Level 1Level 2Level 3Total - GrossNetting (a)Total - Net
(Thousands of dollars)
(Thousands of dollars)
Derivative assetsDerivative assets      Derivative assets      
Commodity contractsCommodity contractsCommodity contracts
Financial contractsFinancial contracts$4,963 $0 $41,896 $46,859 $(46,859)$0 Financial contracts$6,380 $0 $113,776 $120,156 $(120,156)$0 
Interest-rate contractsInterest-rate contracts0 241 0 241 0 241 
Total derivative assetsTotal derivative assets$4,963 $0 $41,896 $46,859 $(46,859)$0 Total derivative assets$6,380 $241 $113,776 $120,397 $(120,156)$241 
Derivative liabilitiesDerivative liabilities     Derivative liabilities     
Commodity contractsCommodity contractsCommodity contracts
Financial contractsFinancial contracts$(13,509)$0 $(47,240)$(60,749)$60,749 $0 Financial contracts$(18,986)$0 $(155,570)$(174,556)$174,556 $0 
Interest-rate contractsInterest-rate contracts0 (231,991)0 (231,991)0 (231,991)Interest-rate contracts0 (97,363)0 (97,363)0 (97,363)
Total derivative liabilitiesTotal derivative liabilities$(13,509)$(231,991)$(47,240)$(292,740)$60,749 $(231,991)Total derivative liabilities$(18,986)$(97,363)$(155,570)$(271,919)$174,556 $(97,363)
(a) - Derivative assets and liabilities are presented in our Consolidated Balance Sheet on a net basis. We net derivative assets and liabilities when a legally enforceable master-netting arrangement exists between the counterparty to a derivative contract and us. At September 30, 2020,March 31, 2021, we held 0 cash and posted $48.2$108.0 million of cash with various counterparties, including $13.9$54.4 million of cash collateral that is offsetting derivative net liability positions under master-netting arrangements in the table above. The remaining $34.3$53.6 million of cash collateral in excess of derivative net liability positions is included in other current assets in our Consolidated Balance Sheet.

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December 31, 2019 December 31, 2020
Level 1Level 2Level 3Total - GrossNetting (a)Total - Net Level 1Level 2Level 3Total - GrossNetting (a)Total - Net
(Thousands of dollars)
(Thousands of dollars)
Derivative assetsDerivative assets      Derivative assets      
Commodity contractsCommodity contractsCommodity contracts
Financial contractsFinancial contracts$10,892 $$55,557 $66,449 $(28,588)$37,861 Financial contracts$6,697 $$103,801 $110,498 $(110,498)$
Interest-rate contracts581 581 581 
Total derivative assetsTotal derivative assets$10,892 $581 $55,557 $67,030 $(28,588)$38,442 Total derivative assets$6,697 $$103,801 $110,498 $(110,498)$
Derivative liabilitiesDerivative liabilities      Derivative liabilities      
Commodity contractsCommodity contractsCommodity contracts
Financial contractsFinancial contracts$(4,811)$$(24,785)$(29,596)$28,588 $(1,008)Financial contracts$(10,489)$$(135,122)$(145,611)$145,611 $
Interest-rate contractsInterest-rate contracts(201,941)(201,941)(201,941)Interest-rate contracts(203,407)(203,407)(203,407)
Total derivative liabilitiesTotal derivative liabilities$(4,811)$(201,941)$(24,785)$(231,537)$28,588 $(202,949)Total derivative liabilities$(10,489)$(203,407)$(135,122)$(349,018)$145,611 $(203,407)
(a) - Derivative assets and liabilities are presented in our Consolidated Balance Sheet on a net basis. We net derivative assets and liabilities when a legally enforceable master-netting arrangement exists between the counterparty to a derivative contract and us. At December 31, 2019,2020, we held 0 cash and posted $8.8$63.1 million of cash with various counterparties, whichincluding $35.1 million of cash collateral that is offsetting derivative net liability positions under master-netting arrangements in the table above. The remaining $28.0 million of cash collateral in excess of derivative net liability positions is included in other current assets in our Consolidated Balance Sheet.

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The following table sets forth a reconciliation of our Level 3 fair value measurements for the periods indicated:
Three Months EndedNine Months Ended
September 30,September 30,
Derivative Assets (Liabilities)2020201920202019
 
(Thousands of dollars)
Net assets at beginning of period$5,583 $19,274 $30,772 $40,484 
Total changes in fair value:
Settlements included in net income (a)(6,194)(12,380)(29,471)(38,044)
New Level 3 derivatives included in other comprehensive loss (b)(2,033)2,728 (5,140)17,528 
Unrealized change included in other comprehensive loss (b)(2,700)18,593 (1,505)8,247 
Net assets (liabilities) at end of period$(5,344)$28,215 $(5,344)$28,215 
Three Months Ended
March 31,
Derivative Assets (Liabilities)20212020
 
(Thousands of dollars)
Net assets (liabilities) at beginning of period$(31,321)$30,772 
Total changes in fair value:
Settlements included in net income (loss) (a)24,738 (16,146)
New Level 3 derivatives included in other comprehensive income (loss) (b)(4,612)20,993 
Unrealized change included in other comprehensive income (loss) (b)(30,599)21,782 
Net assets (liabilities) at end of period$(41,794)$57,401 
(a) - Included in commodity sales revenues/cost of sales and fuel in our Consolidated Statements of Income.
(b) - Included in change in fair value of derivatives in our Consolidated Statements of Comprehensive Income.

During the three and nine months ended September 30,March 31, 2021 and 2020, and 2019, there were 0 transfers in or out of Level 3 of the fair value hierarchy.

Other Financial Instruments - The approximate fair value of cash and cash equivalents, accounts receivable, accounts payable and short-term borrowings is equal to book value due to the short-term nature of these items. Our cash and cash equivalents are composed of bank and money market accounts and are classified as Level 1. Our short-term borrowings are classified as Level 2 since the estimated fair value of the short-term borrowings can be determined using information available in the commercial paper market.

The estimated fair value of our consolidated long-term debt, including current maturities, was $14.9$15.8 billion and $13.8$16.3 billion at September 30, 2020,March 31, 2021, and December 31, 2019,2020, respectively. The book value of our consolidated long-term debt, including current maturities, was $14.3 billion and $12.5$14.2 billion at September 30, 2020,March 31, 2021, and December 31, 2019, respectively.2020. The estimated fair value of the aggregate long-term debt outstanding was determined using quoted market prices for similar issues with similar terms and maturities. The estimated fair value of our consolidated long-term debt is classified as Level 2.

Nonrecurring Fair Value Measurements - In the first quarter 2020, we incurred noncash impairment charges for certain long-lived assets and equity investments. The valuation of these assets and investments required the use of significant unobservable inputs. To estimate the fair value, we used two generally accepted valuation approaches, an income approach and a market approach. Under the income approach, our discounted cash flow analysis included the following inputs that are not readily available: a discount rate reflective of industry cost of capital, our estimated contract rates, volumes, operating and maintenance costs and capital expenditures. Under the market approach, our inputs included EBITDA multiples, which were estimated from recent peer acquisition transactions, and forecasted EBITDA, which incorporates inputs similar to those used under the income
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approach. The estimated fair value of these assets is classified as Level 3. See Note A for additional information about our impairment charges.

C.    RISK-MANAGEMENT AND HEDGING ACTIVITIES USING DERIVATIVES

Risk-ManagementRisk-management Activities - We are sensitive to changes in natural gas, crude oil and NGL prices, principally as a result of contractual terms under which these commodities are processed, purchased and sold. We are also subject to the risk of interest-rate fluctuation in the normal course of business. We use physical-forward purchases and sales and financial derivatives to secure a certain price for a portion of our natural gas, condensate and NGL products; to reduce our exposure to commodity price and interest-rate fluctuations; and to achieve more predictable cash flows. We follow established policies and procedures to assess risk and approve, monitor and report our risk-management activities. We have not used these instruments for trading purposes.

Commodity price risk - Commodity price risk refers to the risk of loss in cash flows and future earnings arising from adverse changes in the price of natural gas, NGLs and condensate. We may use the following commodity derivative instruments to reduce the near-term commodity price risk associated with a portion of the forecasted sales of these commodities:
Futures contracts - Standardized contracts to purchase or sell natural gas and crude oil for future delivery or settlement under the provisions of exchange regulations;
Forward contracts - Nonstandardized commitments between two parties to purchase or sell natural gas, crude oil or NGLs for future physical delivery. These contracts are typically nontransferable and can only be canceled with the consent of both parties;
Swaps - Exchange of one or more payments based on the value of one or more commodities. These instruments transfer the financial risk associated with a future change in value between the counterparties of the transaction, without also conveying ownership interest in the asset or liability; and
Options - Contractual agreements that give the holder the right, but not the obligation, to buy or sell a fixed quantity of a commodity at a fixed price within a specified period of time. Options may either be standardized and exchange-traded or customized and nonexchange-traded.

We may also use other instruments, including collars, to mitigate commodity price risk. A collar is a combination of a purchased put option and a sold call option, which places a floor and a ceiling price for commodity sales being hedged.

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In our Natural Gas Gathering and Processing segment, we are exposed to commodity price risk as a result of retaining a portion of the commodity sales proceeds associated with our POPfee with feePOP contracts. Under certain POPfee with feePOP contracts, our fees and POP percentage may increase or decrease if production volumes, delivery pressures or commodity prices change relative to specified thresholds. In certain commodity price environments, our contractual fees on these certainfee with POP with fee contracts may decrease, which impacts the average fee rate in our Natural Gas Gathering and Processing segment. We also are exposed to basis risk between the various production and market locations where we buy and sell commodities. As part of our hedging strategy, we use the previously described commodity derivative financial instruments and physical-forward contracts to reduce the impact of price fluctuations related to natural gas, NGLs and condensate.

In our Natural Gas Liquids segment, we are primarily exposed to commodity price risk resulting from the relative values of the various NGL products to each other, the value of NGLs in storage and the relative value of NGLs to natural gas. We are also exposed to location price differential risk as a result of the relative value of NGL purchases at one location and sales at another location, primarily related to our optimization and marketing activities. As part of our hedging strategy, we utilize physical-forward contracts and commodity derivative financial instruments to reduce the impact of price fluctuations related to NGLs.

In our Natural Gas Pipelines segment, we are primarily exposed to commodity price risk on our intrastate pipelines because they consume natural gas in operations and retain natural gas from our customers for operations or as part of our fee for services provided. When the amount consumed in operations differs from the amount provided by our customers, our pipelines must buy or sell natural gas, or store or use natural gas inventory, which can expose this segment to commodity price risk depending on the regulatory treatment for this activity. To the extent that commodity price risk in our Natural Gas Pipelines segment is not mitigated by fuel cost-recovery mechanisms, we may use physical-forward sales or purchases to reduce the impact of natural gas price fluctuations. At September 30, 2020,March 31, 2021, and December 31, 2019,2020, there were 0 financial derivative instruments with respect to our natural gas pipeline operations.

Interest-rate risk - We manage interest-rate risk through the use of fixed-rate debt, floating-rate debt and interest-rate swaps. Interest-rate swaps are agreements to exchange interest payments at some future point based on specified notional amounts. In March 2020, we settled $750 million of our forward-starting interest-rate swaps related to our underwritten public offerings of
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$1.75 billion senior unsecured notes resulting in a loss of $152.5 million, which is included in accumulated other comprehensive loss and will be amortized to interest expense over the term of the related debt. In May 2020, we settled the remaining $1.3 billion of our interest-rate swaps used to hedge our LIBOR-based interest payments resulting in a loss of $48.3 million, which was recognized into interest expense upon repayment of our $1.5 Billion Term Loan Agreement.

At September 30, 2020,March 31, 2021, and December 31, 2019,2020, we had forward-starting interest-rate swaps with notional amounts totaling $1.1 billion and $1.8 billion, respectively, to hedge the variability of interest payments on a portion of our forecasted debt issuances. At December 31, 2019, we had interest-rate swaps with notional amounts totaling $1.3 billion to hedge the variability of our LIBOR-based interest payments, all of which have settled as of September 30, 2020. All of our interest-rate swaps are designated as cash flow hedges.

Accounting Treatment - Our accounting treatment of derivative instruments is consistent with that disclosed in Note A of the Notes to Consolidated Financial Statements in our Annual Report.

Fair Values of Derivative Instruments - See Note B for a discussion of the inputs associated with our fair value measurements. The following table sets forth the fair values of our derivative instruments presented on a gross basis for the periods indicated:
September 30, 2020December 31, 2019 March 31, 2021December 31, 2020
Location in our
Consolidated Balance
Sheets
Assets(Liabilities)Assets(Liabilities) Location in our
Consolidated Balance
Sheets
Assets(Liabilities)Assets(Liabilities)
Derivatives designated as hedging instrumentsDerivatives designated as hedging instruments
(Thousands of dollars)
Derivatives designated as hedging instruments
(Thousands of dollars)
Commodity contracts (a)Commodity contracts (a)Commodity contracts (a)
Financial contracts (b)Financial contracts (b)Other current assets$46,451 $(60,373)$64,858 $(26,997)Financial contracts (b)$113,909 $(168,369)$107,461 $(142,573)
Other deferred credits0 0 1,591 (2,599)
Interest-rate contractsInterest-rate contractsOther current liabilities0 0 (90,161)Interest-rate contractsOther current assets/ liabilities241 (65,329)
Other assets/other deferred credits0 (231,991)581 (111,780)Other deferred credits0 (32,034)(203,407)
Total derivatives designated as hedging instrumentsTotal derivatives designated as hedging instruments46,451 (292,364)67,030 (231,537)Total derivatives designated as hedging instruments114,150 (265,732)107,461 (345,980)
Derivatives not designated as hedging instrumentsDerivatives not designated as hedging instrumentsDerivatives not designated as hedging instruments
Commodity contracts (a)Commodity contracts (a)Commodity contracts (a)
Financial contracts (b)Financial contracts (b)408 (376)Financial contracts (b)6,247 (6,187)3,037 (3,038)
Total derivatives not designated as hedging instrumentsTotal derivatives not designated as hedging instruments408 (376)Total derivatives not designated as hedging instruments6,247 (6,187)3,037 (3,038)
Total derivativesTotal derivatives$46,859 $(292,740)$67,030 $(231,537)Total derivatives$120,397 $(271,919)$110,498 $(349,018)
(a) - Derivative assets and liabilities are presented in our Consolidated Balance Sheets on a net basis when a legally enforceable master-netting arrangement exists between the counterparty to a derivative contract and us.
(b) - At September 30,March 31, 2021, and December 31, 2020, our derivative net liability positions under master-netting arrangements for financial contracts were fully offset by $13.9cash collateral of $54.4 million of cash collateral.

and $35.1 million, respectively.
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Notional Quantities for Derivative Instruments - The following table sets forth the notional quantities for derivative instruments held for the periods indicated:
 September 30, 2020December 31, 2019  March 31, 2021December 31, 2020
Contract
Type
Purchased/
Payor
Sold/
Receiver
Purchased/
Payor
Sold/
Receiver
Contract
Type
Net Purchased/Payor
(Sold/Receiver)
Derivatives designated as hedging instruments:(a)Derivatives designated as hedging instruments:(a)Derivatives designated as hedging instruments:(a)
Cash flow hedgesCash flow hedges    Cash flow hedges  
Fixed priceFixed price     Fixed price   
- Natural gas (Bcf)
- Natural gas (Bcf)
Futures1.7 (40.9)(59.0)
- Natural gas (Bcf)
Futures(80.9)(43.3)
- Crude oil and NGLs (MMBbl)
- Crude oil and NGLs (MMBbl)
Futures15.3 (22.7)7.9 (17.4)
- Crude oil and NGLs (MMBbl)
Futures(10.9)(4.6)
BasisBasis Basis 
- Natural gas (Bcf)
- Natural gas (Bcf)
Futures1.7 (40.9)(59.0)
- Natural gas (Bcf)
Futures(80.9)(43.3)
Interest-rate contracts (Billions of dollars)
Interest-rate contracts (Billions of dollars)
Swaps$1.1 $0 $3.1 $
Interest-rate contracts (Billions of dollars)
Swaps$1.1 $1.1 
Derivatives not designated as hedging instruments:
Fixed price
- Natural gas (Bcf)
Futures1.5 (1.5)
- Crude oil and NGLs (MMBbl)
Futures0.2 (0.2)
Basis
- Natural gas (Bcf)
Futures1.5 (1.5)

These(a) - Notional amounts for derivatives not designated as hedging instruments are excluded from the table above due to fully offsetting notional amounts are used to summarize the volumequantities of financial instruments; however, they do not reflect the extent to which the positions offset one another0.5 MMBbl and consequently, do not reflect our actual exposure to market or credit risk.0.8 MMBbl for NGLs fixed priced derivative instruments at March 31, 2021, and December 31, 2020, respectively.

Cash Flow Hedges - The following table sets forth the unrealized change in fair value of cash flow hedges in other comprehensive lossincome (loss) for the periods indicated:
Three Months EndedNine Months Ended Three Months Ended
September 30,September 30,March 31,
202020192020201920212020
(Thousands of dollars)
(Thousands of dollars)
Commodity contractsCommodity contracts$(29,667)$32,169 $18,472 $43,877 Commodity contracts$(63,430)$87,195 
Interest-rate contractsInterest-rate contracts9,213 (128,041)(237,200)(303,351)Interest-rate contracts106,285 (225,041)
Total unrealized change in fair value of cash flow hedges in other comprehensive loss$(20,454)$(95,872)$(218,728)$(259,474)
Total unrealized change in fair value of cash flow hedges in other comprehensive income (loss)Total unrealized change in fair value of cash flow hedges in other comprehensive income (loss)$42,855 $(137,846)

The following table sets forth the effect of cash flow hedges on net income (loss) for the periods indicated:
Location of Gain (Loss) Reclassified from
Accumulated Other Comprehensive
Loss into Net Income
Three Months EndedNine Months Ended
September 30,September 30,
2020201920202019
  
(Thousands of dollars)
Commodity contractsCommodity sales revenues$2,167 $38,234 $100,304 $85,375 
Cost of sales and fuel(1,568)(19,706)(31,057)(32,751)
Interest-rate contracts (a)Interest expense(8,998)(6,903)(83,817)(14,222)
Total change in fair value of cash flow hedges reclassified from accumulated other comprehensive loss into net income on derivatives$(8,399)$11,625 $(14,570)$38,402 
(a) - The nine months ended September 30, 2020, includes a loss of $48.3 million on the settlement of our remaining $1.3 billion interest-rate swaps used to hedge our LIBOR-based interest payments.
Location of Gain (Loss) Reclassified from
Accumulated Other Comprehensive
Loss into Net Income (Loss)
Three Months Ended
March 31,
20212020
  
(Thousands of dollars)
Commodity contractsCommodity sales revenues$(130,518)$44,999 
Cost of sales and fuel86,436 (15,039)
Interest-rate contractsInterest expense(9,666)(10,278)
Total change in fair value of cash flow hedges reclassified from accumulated other comprehensive loss into net income (loss) on derivatives$(53,748)$19,682 

Credit Risk - We monitor the creditworthiness of our counterparties and compliance with policies and limits established by our Risk Oversight and Strategy Committee. We maintain credit policies with regard to our counterparties that we believe minimize overall credit risk. These policies include an evaluation of potential counterparties’ financial condition (including credit ratings, bond yields and credit default swap rates), collateral requirements under certain circumstances and the use of standardized master-netting agreements that allow us to net the positive and negative exposures associated with a single counterparty. We use internally developed credit ratings for counterparties that do not have a credit rating.

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Our financial commodity derivatives are generally settled through a NYMEX or Intercontinental Exchange (ICE)ICE clearing broker account with daily margin requirements. However, we may enter into financial derivative instruments that contain provisions that require us to maintain an investment-grade credit rating from S&P, Fitch and/or Moody’s. If our credit ratings on our senior unsecured long-term debt were to decline below investment grade, the counterparties to the derivative instruments could request collateralization on derivative instruments in net liability positions. There were 0 financial derivative instruments with contingent features related to credit risk at September 30, 2020.March 31, 2021.

The counterparties to our derivative contracts typically consist of major energy companies, financial institutions and commercial and industrial end users. This concentration of counterparties may affect our overall exposure to credit risk, either
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positively or negatively, in that the counterparties may be affected similarly by changes in economic, regulatory or other conditions. Based on our policies, exposures, credit and other reserves, we do not anticipate a material adverse effect on our financial position or results of operations as a result of counterparty nonperformance.

At September 30, 2020,March 31, 2021, the credit exposure from our derivative assets is with investment-grade companies in the financial services sector.

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D.    DEBT

The following table sets forth our consolidated debt for the periods indicated:
September 30,
2020
December 31,
2019
 
(Thousands of dollars)
Commercial paper outstanding, bearing a weighted-average interest rate of 2.16% as of December 31, 2019$0 $220,000 
Senior unsecured obligations:
$1,500,000 term loan at 2.7% as of December 31, 2019, due November 20210 1,250,000 
$700,000 at 4.25% due February 2022547,397 547,397 
$900,000 at 3.375% due October 2022900,000 900,000 
$425,000 at 5.0% due September 2023425,000 425,000 
$500,000 at 7.5% due September 2023500,000 500,000 
$500,000 at 2.75% due September 2024500,000 500,000 
$500,000 at 4.9% due March 2025500,000 500,000 
$400,000 at 2.2% due September 2025387,000 
$600,000 at 5.85% due January 2026600,000 
$500,000 at 4.0% due July 2027500,000 500,000 
$800,000 at 4.55% due July 2028800,000 800,000 
$100,000 at 6.875% due September 2028100,000 100,000 
$700,000 at 4.35% due March 2029700,000 700,000 
$750,000 at 3.4% due September 2029714,251 750,000 
$850,000 at 3.1% due March 2030780,093 
$600,000 at 6.35% due January 2031600,000 
$400,000 at 6.0% due June 2035400,000 400,000 
$600,000 at 6.65% due October 2036600,000 600,000 
$600,000 at 6.85% due October 2037600,000 600,000 
$650,000 at 6.125% due February 2041650,000 650,000 
$400,000 at 6.2% due September 2043400,000 400,000 
$700,000 at 4.95% due July 2047689,006 700,000 
$1,000,000 at 5.2% due July 20481,000,000 1,000,000 
$750,000 at 4.45% due September 2049723,736 750,000 
$500,000 at 4.5% due March 2050453,585 
$300,000 at 7.15% due January 2051300,000 
Guardian Pipeline
Weighted average 7.85% due December 202215,570 21,307 
Total debt14,385,638 12,813,704 
Unamortized portion of terminated swaps13,743 15,032 
Unamortized debt issuance costs and discounts(142,392)(121,329)
Current maturities of long-term debt(7,650)(7,650)
Short-term borrowings (a)0 (220,000)
Long-term debt$14,249,339 $12,479,757 
(a) - Individual issuances of commercial paper under our commercial paper program generally mature in 90 days or less.
March 31,
2021
December 31,
2020
 
(Thousands of dollars)
Commercial paper outstanding$0 $
Senior unsecured obligations:
$700,000 at 4.25% due February 2022536,107 541,877 
$900,000 at 3.375% due October 2022895,814 895,814 
$425,000 at 5.0% due September 2023425,000 425,000 
$500,000 at 7.5% due September 2023500,000 500,000 
$500,000 at 2.75% due September 2024500,000 500,000 
$500,000 at 4.9% due March 2025500,000 500,000 
$400,000 at 2.2% due September 2025387,000 387,000 
$600,000 at 5.85% due January 2026600,000 600,000 
$500,000 at 4.0% due July 2027500,000 500,000 
$800,000 at 4.55% due July 2028800,000 800,000 
$100,000 at 6.875% due September 2028100,000 100,000 
$700,000 at 4.35% due March 2029700,000 700,000 
$750,000 at 3.4% due September 2029714,251 714,251 
$850,000 at 3.1% due March 2030780,093 780,093 
$600,000 at 6.35% due January 2031600,000 600,000 
$400,000 at 6.0% due June 2035400,000 400,000 
$600,000 at 6.65% due October 2036600,000 600,000 
$600,000 at 6.85% due October 2037600,000 600,000 
$650,000 at 6.125% due February 2041650,000 650,000 
$400,000 at 6.2% due September 2043400,000 400,000 
$700,000 at 4.95% due July 2047689,006 689,006 
$1,000,000 at 5.2% due July 20481,000,000 1,000,000 
$750,000 at 4.45% due September 2049672,530 713,676 
$500,000 at 4.5% due March 2050443,015 451,270 
$300,000 at 7.15% due January 2051300,000 300,000 
Guardian Pipeline
Weighted average 7.85% due December 202211,745 13,657 
Total debt14,304,561 14,361,644 
Unamortized portion of terminated swaps12,884 13,314 
Unamortized debt issuance costs and discounts(134,921)(138,887)
Current maturities of long-term debt(543,757)(7,650)
Long-term debt$13,638,767 $14,228,421 

$2.5 Billion Credit Agreement - Our $2.5 Billion Credit Agreement is a revolving credit facility and contains certain financial, operational and legal covenants. Among other things, these covenants include maintaining a ratio of net indebtedness to adjusted EBITDA (EBITDA, as defined in our $2.5 Billion Credit Agreement, adjusted for all noncash charges and increased for projected EBITDA from certain lender-approved capital expansion projects) of no more than 5.0 to 1 at September 30, 2020.. In June 2020, we amended the $2.5 Billion Credit Agreement by, among other things, modifying the leverage ratio so that we may net up to $700 million of cash on hand against our consolidated indebtedness for purposes of calculating the ratio’s numerator for the fiscal quarters ending June 30, 2020, September 30, 2020, and December 31, 2020. At September 30, 2020, we had 0 outstanding borrowings, our ratio of net indebtedness to adjusted EBITDA was 4.6 to 1, and we were in compliance with all covenants under our $2.5 Billion Credit Agreement.

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In October 2020, we acquired additional interestsinterest in one of our equity investments and a related asset for $27 million, which allowed us to elect an acquisition adjustment period under our $2.5 Billion Credit Agreement and, as a result, increased our leverage ratio covenant to 5.5 to 1 for the fourth quarter 2020 and the two following quarters. Thereafter, the covenant will decrease to 5.0 to 1. At March 31, 2021, we had 0 outstanding
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borrowings, our ratio of indebtedness to adjusted EBITDA was 4.6 to 1, and we were in compliance with all covenants under our $2.5 Billion Credit Agreement.

Debt Issuances - In May 2020, we completed an underwritten public offering of $1.5 billion senior unsecured notes consisting of $600 million, 5.85% senior notes due 2026; $600 million, 6.35% senior notes due 2031; and $300 million, 7.15% senior notes due 2051. The net proceeds, after deducting underwriting discounts, commissions and offering expenses, were $1.48 billion. A portion of the proceeds were used to repay the outstanding borrowings under our $1.5 Billion Term Loan Agreement. The remainder was used for general corporate purposes.

In March 2020, we completed an underwritten public offering of $1.75 billion senior unsecured notes consisting of $400 million, 2.2% senior notes due 2025; $850 million, 3.1% senior notes due 2030; and $500 million, 4.5% senior notes due 2050. The net proceeds, after deducting underwriting discounts, commissions and offering expenses, were $1.73 billion. A portion of the proceeds were used to pay all outstanding amounts under our commercial paper program. The remainder was used for general corporate purposes, which included repayment of other existing indebtedness and funding capital expenditures.

Debt RepaymentsRepurchases -In May 2020, we repaid the remaining $1.25 billion of our $1.5 Billion Term Loan Agreement with cash on hand from our May 2020 public offering of $1.5 billion senior unsecured notes.

During the three and nine months ended September 30, 2020,March 31, 2021, we repurchased in the open market outstanding principal of certain of our senior notes in the amountsamount of $28.0$55.2 million and $202.3 million, respectively, for an aggregate repurchase price of $25.4$54.6 million and $177.7 million, respectively, with cash on hand. In connection with these open market repurchases, we recognized $2.2 million and $22.2 million of gains on extinguishment of debt, which is included in other income in our Consolidated Statement of Income for the three and nine months ended September 30, 2020, respectively.

Debt Guarantees - We, ONEOK Partners and the Intermediate Partnership have cross guarantees in place for our and ONEOK Partners’ indebtedness.

For additional discussion of our $2.5 Billion Credit Agreement, see Note F of the Notes to Consolidated Financial Statements in our Annual Report.

E.    EQUITY

Equity Issuances - In July 2020, we established an “at-the-market” equity program for the offer and sale from time to time of our common stock up to an aggregate offering price of $1.0 billion. The program allows us to offer and sell common stock at prices we deem appropriate through a sales agent, in forward sales transactions through a forward seller or directly to one or more of the program’s managers acting as principals. Sales of our common stock may be made by means of ordinary brokers’ transactions on the NYSE, in block transactions or as otherwise agreed to between us and the sales agent. We are under no obligation to offer and sell common stock under the program. NaN shares have been sold through our “at-the-market” program as of the date of this report.

In June 2020, we completed an underwritten public offering of 29.9 million shares of our common stock at a public offering price of $32.00 per share, generating net proceeds, after deducting underwriting discounts, commissions and offering expenses, of $937.0 million. A portion of the proceeds were, and we anticipate the remainder will be, used for general corporate purposes, including repayment of existing indebtedness and funding capital expenditures.

Dividends - Holders of our common stock share equally in any dividend declared by our Board of Directors, subject to the rights of the holders of outstanding preferred stock.Series E Preferred Stock. Dividends paid on our common stock in February 2020, May 2020 and August 20202021 were $0.935 per share. A dividend of $0.935 per share was declared for shareholders of record at the close of business on November 2, 2020,April 26, 2021, payable November 13, 2020.May 14, 2021.

Our Series E Preferred Stock pays quarterly dividends on each share of Series E Preferred Stock, when, as and if declared by our Board of Directors, at a rate of 5.5% per year. We paid dividends for the Series E Preferred Stock of $0.3 million in February 2020, May 2020 and August 2020.2021. Dividends totaling $0.3 million were declared for the Series E Preferred Stock and are payable November 13, 2020.May 14, 2021.

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F.    ACCUMULATED OTHER COMPREHENSIVE LOSS

The following table sets forth the balance in accumulated other comprehensive loss for the period indicated:
Risk-
Management
Assets/Liabilities (a)
Retirement and Other
Postretirement
Benefit Plan
Obligations (a) (b)
Risk-
Management
Assets/Liabilities of
Unconsolidated
Affiliates (a)
Accumulated
Other
Comprehensive
Loss (a)
(Thousands of dollars)
January 1, 2020$(233,520)$(131,481)$(8,999)$(374,000)
Other comprehensive income (loss) before reclassifications(168,421)59 (10,893)(179,255)
Amounts reclassified to net income (c)11,210 10,626 801 22,637 
Other comprehensive income (loss)(157,211)10,685 (10,092)(156,618)
September 30, 2020$(390,731)$(120,796)$(19,091)$(530,618)
Risk-
Management
Assets/Liabilities (a)
Retirement and
Other
Postretirement
Benefit Plan
Obligations (a) (b)
Risk-
Management
Assets/Liabilities of
Unconsolidated
Affiliates (a)
Accumulated
Other
Comprehensive
Loss (a)
(Thousands of dollars)
January 1, 2021$(377,446)$(157,635)$(16,368)$(551,449)
Other comprehensive income (loss) before reclassifications32,998 (167)7,372 40,203 
Amounts reclassified to net income (c)41,387 3,805 458 45,650 
Other comprehensive income74,385 3,638 7,830 85,853 
March 31, 2021$(303,061)$(153,997)$(8,538)$(465,596)
(a) - All amounts are presented net of tax.
(b) - Includes amounts related to supplemental executive retirement plan.
(c) - See Note C for details of amounts reclassified to net income for risk-management assets/liabilities and Note H for retirement and other postretirement benefit plan obligations.

The following table sets forth information about the balance of accumulated other comprehensive loss at September 30, 2020,March 31, 2021, representing unrealized gains (losses) related to risk-management assets and liabilities:
Risk-
Management
Assets/Liabilities (a)
(Thousands of dollars)
Commodity derivative instruments expected to be realized within the next 1533 months (b)$(10,988)(42,201)
Settled interest-rate swaps to be recognized over the life of the long-term, fixed-rate debt (c)(201,110)(186,076)
Interest-rate swaps with future settlement dates expected to be amortized over the life of long-term debt(178,633)(74,784)
Accumulated other comprehensive loss at September 30, 2020March 31, 2021$(390,731)(303,061)
(a) - All amounts are presented net of tax.
(b) - Based on September 30, 2020, commodity prices on March 31, 2021, we expect $8.4$47.7 million in net losses, net of tax, over the next 12 months and $2.6$5.5 million in net losses,gains, net of tax, thereafter.
(c) - We expect net losses of $30.3$30.5 million, net of tax, will be reclassified into earnings during the next 12 months.

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The remaining amounts in accumulated other comprehensive loss relate primarily to our retirement and other postretirement benefit plan obligations, which are expected to be amortized over the average remaining service period of employees participating in these plans.

G.    EARNINGS PER SHARE

The following tables set forth the computation of basic and diluted EPS for the periods indicated:
Three Months Ended September 30, 2020 Three Months Ended March 31, 2021
IncomeSharesPer Share
Amount

Income
SharesPer Share
Amount
(Thousands, except per share amounts)
(Thousands, except per share amounts)
Basic EPSBasic EPS   Basic EPS   
Net income available for common stockNet income available for common stock$312,041 445,103 $0.70 Net income available for common stock$385,901 445,894 $0.87 
Diluted EPSDiluted EPS  Diluted EPS
Effect of dilutive securitiesEffect of dilutive securities0 407  Effect of dilutive securities0 991 
Net income available for common stock and
common stock equivalents
Net income available for common stock and
common stock equivalents
$312,041 445,510 $0.70 
Net income available for common stock and
common stock equivalents
$385,901 446,885 $0.86 

 Three Months Ended March 31, 2020
 LossSharesPer Share
Amount
 
(Thousands, except per share amounts)
Basic EPS   
Net loss available for common stock$(142,132)414,282 $(0.34)
Diluted EPS
Effect of dilutive securities
Net loss available for common stock and
common stock equivalents (a)
$(142,132)414,282 $(0.34)
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Table(a) - For the three months ended March 31, 2020, 1,065,880 weighted-average shares have been excluded from the calculation of Contents
 Three Months Ended September 30, 2019
 IncomeSharesPer Share
Amount
 
(Thousands, except per share amounts)
Basic EPS   
Net income available for common stock$308,880 413,816 $0.75 
Diluted EPS 
Effect of dilutive securities1,762  
Net income available for common stock and
common stock equivalents
$308,880 415,578 $0.74 

 Nine Months Ended September 30, 2020
 
Income
SharesPer Share
Amount
 
(Thousands, except per share amounts)
Basic EPS   
Net income available for common stock$303,955 426,369 $0.71 
Diluted EPS 
Effect of dilutive securities0 628 
Net income available for common stock and
common stock equivalents
$303,955 426,997 $0.71 

 Nine Months Ended September 30, 2019
 IncomeSharesPer Share
Amount
 
(Thousands, except per share amounts)
Basic EPS   
Net income available for common stock$957,501 413,443 $2.32 
Diluted EPS
Effect of dilutive securities1,834 
Net income available for common stock and
common stock equivalents
$957,501 415,277 $2.31 
diluted loss per share as their inclusion would have been anti-dilutive due to our net loss available for common stock.

H.    EMPLOYEE BENEFIT PLANS

The following tables settable sets forth the components of net periodic benefit cost for our retirement and other postretirement benefit plans for the periods indicated:
Retirement BenefitsOther Postretirement Benefits Retirement BenefitsOther Postretirement Benefits
Three Months EndedThree Months EndedThree Months EndedThree Months Ended
September 30,September 30,March 31,March 31,
2020201920202019 2021202020212020
(Thousands of dollars)
(Thousands of dollars)
Components of net periodic benefit cost (income)Components of net periodic benefit cost (income)    Components of net periodic benefit cost (income)    
Service costService cost$2,036 $1,954 $115 $117 Service cost$2,076 $2,036 $115 $115 
Interest costInterest cost4,574 5,126 442 509 Interest cost4,220 4,574 442 442 
Expected return on plan assetsExpected return on plan assets(6,232)(5,892)(722)(570)Expected return on plan assets(6,269)(6,232)(722)(722)
Amortization of prior service cost (credit) (a)28 0 (57)
Amortization of prior service cost (a)Amortization of prior service cost (a)28 28 0 
Amortization of net loss (a)Amortization of net loss (a)4,571 3,158 1 74 Amortization of net loss (a)4,913 4,571 1 
Net periodic benefit cost (income)Net periodic benefit cost (income)$4,977 $4,346 $(164)$73 Net periodic benefit cost (income)$4,968 $4,977 $(164)$(164)
(a) - These components of net periodic benefit cost (income) are recognized in accumulated other comprehensive loss and are reclassified to other income (expense)expense in our Consolidated Statements of Income, with related income tax benefits of $1.1 million and $0.7 million reclassified to income tax expense(expense) benefit for both the three months ended September 30, 2020March 31, 2021 and 2019, respectively.2020.

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 Retirement BenefitsOther Postretirement Benefits
Nine Months EndedNine Months Ended
September 30,September 30,
 2020201920202019
 
(Thousands of dollars)
Components of net periodic benefit cost (income)    
Service cost$6,108 $5,862 $345 $351 
Interest cost13,722 15,378 1,326 1,527 
Expected return on plan assets(18,696)(17,676)(2,166)(1,710)
Amortization of prior service cost (credit) (a)84 0 (171)
Amortization of net loss (a)13,713 9,474 3 222 
Net periodic benefit cost (income)$14,931 $13,038 $(492)$219 
(a) - These components of net periodic benefit cost (income) are recognized in accumulated other comprehensive loss and are reclassified to other income (expense) in our Consolidated Statements of Income, with related income tax benefits of $3.2 million and $2.2 million reclassified to income tax expense for the nine months ended September 30, 2020 and 2019, respectively.

I.    UNCONSOLIDATED AFFILIATES

Equity in Net Earnings from Investments and Impairments - The following table sets forth our equity in net earnings (loss) from investments for the periods indicated:
Three Months EndedNine Months EndedThree Months Ended
September 30,September 30,March 31,
2020201920202019 20212020
(Thousands of dollars)
(Thousands of dollars)
Northern Border PipelineNorthern Border Pipeline$22,037 $16,102 $57,028 $50,593 Northern Border Pipeline$20,239 $22,120 
Overland Pass PipelineOverland Pass Pipeline8,007 15,481 30,090 48,340 Overland Pass Pipeline2,972 14,111 
RoadrunnerRoadrunner8,033 7,421 21,275 19,836 Roadrunner7,749 6,433 
OtherOther(31)(1,428)(392)(3,594)Other2,360 1,963 
Equity in net earnings from investmentsEquity in net earnings from investments$38,046 $37,576 $108,001 $115,175 Equity in net earnings from investments$33,320 $44,627 
Impairment of equity investmentsImpairment of equity investments$0 $$(37,730)$Impairment of equity investments$0 $(37,730)

InEquity in net earnings from Overland Pass Pipeline decreased for the first quarterthree months ended March 31, 2021, compared with the same period in 2020, due primarily to lower volumes.

For the three months ended March 31, 2020, we incurred a noncash impairment charge of $30.5 million related to our 10.2% investment in Venice Energy Services Company in our Natural Gas Gathering and Processing segment, which includes $22.3 million related to equity-method goodwill, and a $7.2 million noncash impairment charge related to our 50% investment in Chisholm Pipeline Company in our Natural Gas Liquids segment. Our remaining equity-method goodwill was $16.5 million at September 30, 2020. For additional information on our impairment charges, see Note A.

We incurred expenses in transactions with unconsolidated affiliates of $35.8$15.6 million and $41.9$45.3 million for the three months ended September 30,March 31, 2021 and 2020, and 2019, respectively, and $108.4 million and $124.2 million for the nine months ended September 30, 2020 and 2019, respectively, primarily related to Overland PassNorthern Border Pipeline and Northern BorderOverland Pass Pipeline. Accounts payable to our equity-method investees at September 30, 2020,March 31, 2021, and December 31, 2019,2020, were $13.3$5.2 million and $13.5$8.4 million, respectively.

We have an operating agreement with Roadrunner that provides for reimbursement or payment to us for management services and certain operating costs. Reimbursements and payments from Roadrunnercosts, which are included in operating income (loss) in our Consolidated Statements of Income for the three and nine months ended September 30, 2020 and 2019, were not material.Income.

J.    COMMITMENTS AND CONTINGENCIES

Environmental Matters and Pipeline Safety - The operation of pipelines, plants and other facilities for the gathering, processing, fractionation, transportation and storage of natural gas, NGLs, condensate and other products is subject to numerous and complex laws and regulations pertaining to health, safety and the environment. As an owner and/or operator of these facilities, we must comply with laws and regulations that relate to air and water quality, hazardous and solid waste management and disposal, cultural resource protection and other environmental and safety matters. The cost of planning, designing, constructing and operating pipelines, plants and other facilities must incorporate compliance with these laws, regulations and safety standards. Failure to comply with these laws and regulations may trigger a variety of administrative, civil and potentially
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criminal enforcement measures, including citizen suits, which can include the assessment of monetary penalties, the imposition of remedial requirements and the issuance of injunctions or restrictions on operation or construction. Management does not believe that, based on currently known information, a material risk of noncompliance with these laws and regulations exists that will affect adversely our consolidated results of operations, financial condition or cash flows.

Legal Proceedings - We are a party to various litigation matters and claims that have arisen in the normal course of our operations. While the results of these litigation matters and claims cannot be predicted with certainty, we believe the reasonably possible losses from such matters, individually and in the aggregate, are not material. Additionally, we believe the probable final outcome of such matters will not have a material adverse effect on our consolidated results of operations, financial position or cash flows.

K.    LEASES

In December 2019, we entered into an operating lease for pipeline capacity with a lease term of 10 years that commenced January 1, 2020. In connection with this lease, we recognized an operating lease right-of-use asset and a lease liability with remaining balances of $70.7 million and $71.4 million, respectively, as of September 30, 2020. During the nine months ended September 30, 2020, we entered into certain operating leases and recognized operating lease right-of-use assets and lease liabilities with remaining balances of $16.2 million at the end of the period. At September 30, 2020, the weighted-average remaining lease term and the weighted-average discount rate for our operating leases were 8.5 years and 3.19%, respectively.

The following table sets forth supplemental cash flow information related to our leases:
Nine Months Ended
September 30,
20202019
(Thousands of dollars)
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows for operating leases$9,662 $4,972 
Financing cash flows for finance lease$1,443 $1,307 
Right-of-use assets obtained in exchange for operating lease liabilities (noncash)$99,197 $3,663 

The following table sets forth the maturity of our lease liabilities as of September 30, 2020:
Finance
Lease
Operating
Leases
(Millions of dollars)
Remainder of 2020$1.2 $4.1 
20214.5 16.4 
20224.5 15.1 
20234.5 13.8 
20244.5 12.5 
2025 and beyond17.1 58.2 
Total lease payments36.3 120.1 
Less: Interest11.5 15.6 
Present value of lease liabilities$24.8 $104.5 

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L.    REVENUES

Accounting Policies - Our revenue recognition policy isMany of the contract types described inwithin Note A of the Notes to Consolidated Financial StatementsStatement in our Annual Report.Report contain additional fees or charges payable by customers for nonperformance (e.g., minimum volume commitments or product specifications), which are considered to be variable consideration. These fees and charges are not recorded until it is probable that a significant reversal of the associated revenue will not occur.
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Contract Assets and Contract Liabilities - Our contract asset balances at the beginning and end of the period primarily relate to our firm service transportation contracts with tiered rates, which are not material. The following table sets forth the balances in contract liabilities for the periods indicated:
Contract Liabilities
(Millions of dollars)
Balance at December 31, 20192020 (a)$57.141.4 
Revenue recognized included in beginning balance (b)(35.1)(20.4)
Net additions24.312.3 
Balance at September 30, 2020 (c)March 31, 2021 (b)$46.333.3 
(a) - Contract liabilities of $22.2$23.7 million and $34.9$17.7 million are included in other current liabilities and other deferred credits, respectively, in our Consolidated Balance Sheet.
(b) - Includes a contract settlement in the second quarter 2020 of revenue previously deferred.
(c) - Contract liabilities of $27.6$15.9 million and $18.7$17.4 million are included in other current liabilities and other deferred credits, respectively, in our Consolidated Balance Sheet.

Receivables from Customers and Revenue Disaggregation - Substantially all of the balances in accounts receivable on our Consolidated Balance Sheets at September 30, 2020,March 31, 2021, and December 31, 2019,2020, relate to customer receivables. Revenues sources are disaggregated in Note M.L.

Transaction Price Allocated to Unsatisfied Performance Obligations - We do not disclose the value of unsatisfied performance obligations for (i) contracts with an original expected length of one year or less and (ii) variable consideration on contracts for which we recognize revenue at the amount to which we have the right to invoice for services performed.

The following table presents aggregate value allocated to unsatisfied performance obligations as of September 30, 2020,March 31, 2021, and the amounts we expect to recognize in revenue in future periods, related primarily to firm transportation and storage contracts with remaining contract terms ranging from one month to 2423 years:
Expected Period of Recognition in RevenueExpected Period of Recognition in Revenue
(Millions of dollars)
Expected Period of Recognition in Revenue
(Millions of dollars)
Remainder of 2020$87.1 
2021320.0 
Remainder of 2021Remainder of 2021$247.6 
20222022259.9 2022273.4 
20232023230.9 2023244.3 
2024 and beyond901.0 
20242024204.1 
2025 and beyond2025 and beyond796.1 
Total estimated transaction price allocated to unsatisfied performance obligationsTotal estimated transaction price allocated to unsatisfied performance obligations$1,798.9 Total estimated transaction price allocated to unsatisfied performance obligations$1,765.5 

The table above excludes variable consideration allocated entirely to wholly unsatisfied performance obligations, wholly unsatisfied promises to transfer distinct goods or services that are part of a single performance obligation and consideration we determine to be fully constrained. The amounts we determined to be fully constrained relate to future sales obligations under long-term sales contracts where the transaction price is not known and minimum volume agreements, which we consider to be fully constrained until invoiced.

M.L.    SEGMENTS

Segment Descriptions - Our operations are divided into three reportable business segments as follows:
•    our Natural Gas Gathering and Processing segment gathers, treats and processes natural gas;
•    our Natural Gas Liquids segment gathers, treats, fractionates and transports NGLs and stores, markets and distributes NGL products; and
•    our Natural Gas Pipelines segment operatestransports and stores natural gas via regulated interstateintrastate and intrastateinterstate natural gas transmission pipelines and natural gas storage facilities.

Other and eliminations consist of corporate costs, the operating and leasing activities of our headquarters building and related parking facility and eliminations necessary to reconcile our reportable segments to our Consolidated Financial Statements.

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Accounting Policies - The accounting policies of the segments are described in Note A of the Notes to Consolidated Financial Statements in our Annual Report.

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Operating Segment Information - The following tables set forth certain selected financial information for our operating segments for the periods indicated:
Three Months Ended
September 30, 2020
Natural Gas
Gathering and
Processing
Natural Gas
Liquids (a)
Natural Gas
Pipelines (b)
Total
Segments
Three Months Ended
March 31, 2021
Three Months Ended
March 31, 2021
Natural Gas
Gathering and
Processing
Natural Gas
Liquids (a)
Natural Gas
Pipelines (b)
Total
Segments
(Thousands of dollars)
(Thousands of dollars)
NGL and condensate salesNGL and condensate sales$239,810 $1,658,123 $0 $1,897,933 NGL and condensate sales$491,807 $2,414,830 $0 $2,906,637 
Residue natural gas salesResidue natural gas sales178,492 0 3,998 182,490 Residue natural gas sales312,247 0 115,455 427,702 
Gathering, processing and exchange services revenueGathering, processing and exchange services revenue36,459 132,210 0 168,669 Gathering, processing and exchange services revenue31,687 113,231 0 144,918 
Transportation and storage revenueTransportation and storage revenue0 39,774 113,047 152,821 Transportation and storage revenue0 48,728 132,947 181,675 
OtherOther4,644 2,110 251 7,005 Other4,000 33,276 412 37,688 
Total revenues (c)Total revenues (c)459,405 1,832,217 117,296 2,408,918 Total revenues (c)839,741 2,610,065 248,814 3,698,620 
Cost of sales and fuel (exclusive of depreciation and operating costs)Cost of sales and fuel (exclusive of depreciation and operating costs)(207,519)(1,289,667)(3,389)(1,500,575)Cost of sales and fuel (exclusive of depreciation and operating costs)(555,306)(2,060,319)(10,013)(2,625,638)
Operating costsOperating costs(69,351)(101,223)(34,567)(205,141)Operating costs(84,598)(124,369)(42,317)(251,284)
Equity in net earnings (loss) from investments(42)8,018 30,070 38,046 
Equity in net earnings from investmentsEquity in net earnings from investments1,728 3,604 27,988 33,320 
Noncash compensation expense and otherNoncash compensation expense and other655 1,898 427 2,980 Noncash compensation expense and other3,151 6,647 1,703 11,501 
Segment adjusted EBITDASegment adjusted EBITDA$183,148 $451,243 $109,837 $744,228 Segment adjusted EBITDA$204,716 $435,628 $226,175 $866,519 
Depreciation and amortizationDepreciation and amortization$(66,459)$(71,534)$(14,243)$(152,236)Depreciation and amortization$(67,032)$(74,542)$(14,476)$(156,050)
Investments in unconsolidated affiliatesInvestments in unconsolidated affiliates$24,584 $420,614 $362,523 $807,721 
Total assetsTotal assets$6,535,260 $13,944,887 $2,096,459 $22,576,606 
Capital expendituresCapital expenditures$63,030 $298,891 $12,978 $374,899 Capital expenditures$39,651 $112,021 $21,157 $172,829 
(a) - Our Natural Gas Liquids segment has regulated and nonregulated operations. Our Natural Gas Liquids segment’s regulated operations had revenues of $541.7$570.6 million, of which $495.4$516.1 million related to revenues within the segment, and cost of sales and fuel of $137.5$135.8 million.
(b) - Our Natural Gas Pipelines segment has regulated and nonregulated operations. Our Natural Gas Pipelines segment’s regulated operations had revenues of $71.8$181.4 million and cost of sales and fuel of $9.6$12.8 million.
(c) - Intersegment revenues are primarily commodity sales which are based on the contracted selling price that is generally index-based and settled monthly, and for the Natural Gas Gathering and Processing segment totaled $235.6$481.6 million. Intersegment revenues for the Natural Gas Liquids and Natural Gas Pipelines segments were not material.

Three Months Ended
September 30, 2020
Total
Segments
Other and
Eliminations
Total
Three Months Ended
March 31, 2021
Three Months Ended
March 31, 2021
Total
Segments
Other and
Eliminations
Total
(Thousands of dollars)
(Thousands of dollars)
Reconciliations of total segments to consolidatedReconciliations of total segments to consolidatedReconciliations of total segments to consolidated
NGL and condensate salesNGL and condensate sales$1,897,933 $(224,731)$1,673,202 NGL and condensate sales$2,906,637 $(500,064)$2,406,573 
Residue natural gas salesResidue natural gas sales182,490 (5,897)176,593 Residue natural gas sales427,702 0 427,702 
Gathering, processing and exchange services revenueGathering, processing and exchange services revenue168,669 0 168,669 Gathering, processing and exchange services revenue144,918 0 144,918 
Transportation and storage revenueTransportation and storage revenue152,821 (3,597)149,224 Transportation and storage revenue181,675 (3,535)178,140 
OtherOther7,005 (429)6,576 Other37,688 (342)37,346 
Total revenues (a)Total revenues (a)$2,408,918 $(234,654)$2,174,264 Total revenues (a)$3,698,620 $(503,941)$3,194,679 
Cost of sales and fuel (exclusive of depreciation and operating costs)Cost of sales and fuel (exclusive of depreciation and operating costs)$(1,500,575)$234,901 $(1,265,674)Cost of sales and fuel (exclusive of depreciation and operating costs)$(2,625,638)$504,128 $(2,121,510)
Operating costsOperating costs$(205,141)$212 $(204,929)Operating costs$(251,284)$(313)$(251,597)
Depreciation and amortizationDepreciation and amortization$(152,236)$(1,009)$(153,245)Depreciation and amortization$(156,050)$(1,070)$(157,120)
Equity in net earnings from investmentsEquity in net earnings from investments$38,046 $0 $38,046 Equity in net earnings from investments$33,320 $0 $33,320 
Investments in unconsolidated affiliatesInvestments in unconsolidated affiliates$807,721 $0 $807,721 
Total assetsTotal assets$22,576,606 $603,323 $23,179,929 
Capital expendituresCapital expenditures$374,899 $5,143 $380,042 Capital expenditures$172,829 $3,905 $176,734 
(a) - Noncustomer revenue for the three months ended September 30, 2020,March 31, 2021, totaled $4.0$(132.2) millionrelated primarily to gainslosses from derivatives on commodity contracts.

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Three Months Ended
September 30, 2019
Natural Gas
Gathering and
Processing
Natural Gas
Liquids (a)
Natural Gas
Pipelines (b)
Total
Segments
Three Months Ended
March 31, 2020
Three Months Ended
March 31, 2020
Natural Gas
Gathering and
Processing
Natural Gas
Liquids (a)
Natural Gas
Pipelines (b)
Total
Segments
(Thousands of dollars)
(Thousands of dollars)
NGL and condensate salesNGL and condensate sales$244,932 $1,746,630 $$1,991,562 NGL and condensate sales$219,917 $1,596,711 $$1,816,628 
Residue natural gas salesResidue natural gas sales185,303 231 185,534 Residue natural gas sales189,051 2,035 191,086 
Gathering, processing and exchange services revenueGathering, processing and exchange services revenue42,795 105,179 147,974 Gathering, processing and exchange services revenue37,937 120,536 158,473 
Transportation and storage revenueTransportation and storage revenue46,407 119,924 166,331 Transportation and storage revenue50,755 118,364 169,119 
OtherOther3,182 2,291 1,393 6,866 Other3,075 2,590 384 6,049 
Total revenues (c)Total revenues (c)476,212 1,900,507 121,548 2,498,267 Total revenues (c)449,980 1,770,592 120,783 2,341,355 
Cost of sales and fuel (exclusive of depreciation and operating costs)Cost of sales and fuel (exclusive of depreciation and operating costs)(210,739)(1,438,206)(381)(1,649,326)Cost of sales and fuel (exclusive of depreciation and operating costs)(202,170)(1,278,754)(1,539)(1,482,463)
Operating costsOperating costs(91,227)(114,903)(40,170)(246,300)Operating costs(84,470)(89,571)(33,307)(207,348)
Equity in net earnings (loss) from investments(1,837)15,890 23,523 37,576 
Equity in net earnings from investmentsEquity in net earnings from investments806 15,268 28,553 44,627 
Noncash compensation expense and otherNoncash compensation expense and other2,883 4,174 (701)6,356 Noncash compensation expense and other(4,498)(6,619)(1,966)(13,083)
Segment adjusted EBITDASegment adjusted EBITDA$175,292 $367,462 $103,819 $646,573 Segment adjusted EBITDA$159,648 $410,916 $112,524 $683,088 
Depreciation and amortizationDepreciation and amortization$(55,781)$(50,419)$(14,330)$(120,530)Depreciation and amortization$(58,756)$(57,841)$(14,769)$(131,366)
Impairment charges (d)Impairment charges (d)$(564,353)$(77,401)$$(641,754)
Investments in unconsolidated affiliatesInvestments in unconsolidated affiliates$4,276 $435,024 $371,179 $810,479 
Total assetsTotal assets$6,374,552 $12,682,807 $2,089,362 $21,146,721 
Capital expendituresCapital expenditures$245,745 $738,038 $27,767 $1,011,550 Capital expenditures$181,610 $746,183 $16,590 $944,383 
(a) - Our Natural Gas Liquids segment has regulated and nonregulated operations. Our Natural Gas Liquids segment’s regulated operations had revenues of $379.7$435.1 million, of which $315.7$378.2 million related to revenues within the segment, and cost of sales and fuel of $129.5$120.4 million.
(b) - Our Natural Gas Pipelines segment has regulated and nonregulated operations. Our Natural Gas Pipelines segment’s regulated operations had revenues of $72.3$73.9 million and cost of sales and fuel of $5.1$6.1 million.
(c) - Intersegment revenues are primarily commodity sales, which are based on the contracted selling price that is generally index-based and settled monthly, and for the Natural Gas Gathering and Processing segment totaled $244.2$213.3 million. Intersegment revenues for the Natural Gas Liquids and Natural Gas Pipelines segments were not material.
(d) - Includes noncash impairment charges of $380.5 million related primarily to long-lived assets, $153.4 million related to goodwill and $30.5 million related to an investment in an unconsolidated affiliate in our Natural Gas Gathering and Processing segment; and $70.2 million related to long-lived assets and $7.2 million related to an investment in an unconsolidated affiliate in our Natural Gas Liquids segment.

Three Months Ended
September 30, 2019
Total
Segments
Other and
Eliminations
Total
Three Months Ended
March 31, 2020
Three Months Ended
March 31, 2020
Total
Segments
Other and
Eliminations
Total
(Thousands of dollars)
(Thousands of dollars)
Reconciliations of total segments to consolidatedReconciliations of total segments to consolidatedReconciliations of total segments to consolidated
NGL and condensate salesNGL and condensate sales$1,991,562 $(230,080)$1,761,482 NGL and condensate sales$1,816,628 $(199,472)$1,617,156 
Residue natural gas salesResidue natural gas sales185,534 (567)184,967 Residue natural gas sales191,086 (1,032)190,054 
Gathering, processing and exchange services revenueGathering, processing and exchange services revenue147,974 147,974 Gathering, processing and exchange services revenue158,473 158,473 
Transportation and storage revenueTransportation and storage revenue166,331 (4,010)162,321 Transportation and storage revenue169,119 (3,809)165,310 
OtherOther6,866 (382)6,484 Other6,049 (370)5,679 
Total revenues (a)Total revenues (a)$2,498,267 $(235,039)$2,263,228 Total revenues (a)$2,341,355 $(204,683)$2,136,672 
Cost of sales and fuel (exclusive of depreciation and operating costs)Cost of sales and fuel (exclusive of depreciation and operating costs)$(1,649,326)$234,798 $(1,414,528)Cost of sales and fuel (exclusive of depreciation and operating costs)$(1,482,463)$205,535 $(1,276,928)
Operating costsOperating costs$(246,300)$1,165 $(245,135)Operating costs$(207,348)$308 $(207,040)
Depreciation and amortizationDepreciation and amortization$(120,530)$(900)$(121,430)Depreciation and amortization$(131,366)$(987)$(132,353)
Impairment chargesImpairment charges$(641,754)$$(641,754)
Equity in net earnings from investmentsEquity in net earnings from investments$37,576 $$37,576 Equity in net earnings from investments$44,627 $$44,627 
Investments in unconsolidated affiliatesInvestments in unconsolidated affiliates$810,479 $$810,479 
Total assetsTotal assets$21,146,721 $822,719 $21,969,440 
Capital expendituresCapital expenditures$1,011,550 $7,624 $1,019,174 Capital expenditures$944,383 $5,296 $949,679 
(a) - Noncustomer revenue for the three months ended September 30, 2019,March 31, 2020, totaled $89.0$80.2 millionrelated primarily to gains from derivatives on commodity contracts.

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Nine Months Ended
September 30, 2020
Natural Gas
Gathering and
Processing
Natural Gas
Liquids (a)
Natural Gas
Pipelines (b)
Total
Segments
 
(Thousands of dollars)
NGL and condensate sales$569,308 $4,429,414 $0 $4,998,722 
Residue natural gas sales518,435 0 6,033 524,468 
Gathering, processing and exchange services revenue110,345 370,920 0 481,265 
Transportation and storage revenue0 131,410 353,188 484,598 
Other11,106 6,779 916 18,801 
Total revenues (c)1,209,194 4,938,523 360,137 6,507,854 
Cost of sales and fuel (exclusive of depreciation and operating costs)(541,910)(3,473,575)(5,096)(4,020,581)
Operating costs(232,489)(297,771)(100,966)(631,226)
Equity in net earnings (loss) from investments(1,385)31,083 78,303 108,001 
Noncash compensation expense and other(1,865)1,541 (184)(508)
Segment adjusted EBITDA$431,545 $1,199,801 $332,194 $1,963,540 
Depreciation and amortization$(180,634)$(198,440)$(43,937)$(423,011)
Impairment charges$(564,353)$(77,401)$0 $(641,754)
Investments in unconsolidated affiliates$2,276 $426,621 $361,476 $790,373 
Total assets$6,437,301 $13,449,529 $2,082,846 $21,969,676 
Capital expenditures$362,811 $1,504,881 $40,478 $1,908,170 
Three Months Ended
March 31,
20212020
(Thousands of dollars)
Reconciliation of net income (loss) to total segment adjusted EBITDA
Net income (loss)$386,176 $(141,857)
Add:
Interest expense, net of capitalized interest185,523 140,616 
Depreciation and amortization157,120 132,353 
Income tax expense (benefit)122,132 (55,395)
Impairment charges0 641,754 
Noncash compensation expense16,283 (1,302)
Other corporate costs and equity AFUDC (a)(715)(33,081)
Total segment adjusted EBITDA$866,519 $683,088 
(a) - Our Natural Gas Liquids segment has regulated and nonregulated operations. Our Natural Gas Liquids segment’s regulated operations had revenues of $1,454.0 million, of which $1,306.2 million related to revenues within the segment, and cost of sales and fuel of $375.0 million.
(b) - Our Natural Gas Pipelines segment has regulated and nonregulated operations. Our Natural Gas Pipelines segment’s regulated operations had revenues of $225.6 million and cost of sales and fuel of $22.4 million.
(c) - Intersegment revenues for the Natural Gas Gathering and Processing segment totaled $557.1 million. Intersegment revenues for the Natural Gas Liquids and Natural Gas Pipelines segments were not material.

Nine Months Ended
September 30, 2020
Total
Segments
Other and
Eliminations
Total
(Thousands of dollars)
Reconciliations of total segments to consolidated
NGL and condensate sales$4,998,722 $(513,170)$4,485,552 
Residue natural gas sales524,468 (10,860)513,608 
Gathering, processing and exchange services revenue481,265 0 481,265 
Transportation and storage revenue484,598 (11,033)473,565 
Other18,801 (1,126)17,675 
Total revenues (a)$6,507,854 $(536,189)$5,971,665 
Cost of sales and fuel (exclusive of depreciation and operating costs)$(4,020,581)$537,521 $(3,483,060)
Operating costs$(631,226)$(5,207)$(636,433)
Depreciation and amortization$(423,011)$(3,003)$(426,014)
Impairment charges$(641,754)$0 $(641,754)
Equity in net earnings from investments$108,001 $0 $108,001 
Investments in unconsolidated affiliates$790,373 $0 $790,373 
Total assets$21,969,676 $811,200 $22,780,876 
Capital expenditures$1,908,170 $15,833 $1,924,003 
(a) - Noncustomer revenue for the nine months ended September 30, 2020, totaled $103.0 millionrelated primarily to gains from derivatives on commodity contracts.

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Nine Months Ended
September 30, 2019
Natural Gas
Gathering and
Processing
Natural Gas
Liquids (a)
Natural Gas
Pipelines (b)
Total
Segments
 
(Thousands of dollars)
NGL and condensate sales$890,021 $5,826,297 $$6,716,318 
Residue natural gas sales725,672 1,242 726,914 
Gathering, processing and exchange services revenue126,073 309,571 435,644 
Transportation and storage revenue141,384 350,029 491,413 
Other11,287 7,313 4,208 22,808 
Total revenues (c)1,753,053 6,284,565 355,479 8,393,097 
Cost of sales and fuel (exclusive of depreciation and operating costs)(971,397)(4,914,452)(3,785)(5,889,634)
Operating costs(271,236)(340,274)(113,043)(724,553)
Equity in net earnings (loss) from investments(4,660)49,406 70,429 115,175 
Noncash compensation expense and other8,399 12,618 1,931 22,948 
Segment adjusted EBITDA$514,159 $1,091,863 $311,011 $1,917,033 
Depreciation and amortization$(162,014)$(143,166)$(42,653)$(347,833)
Investments in unconsolidated affiliates$35,252 $445,755 $389,504 $870,511 
Total assets$6,546,417 $11,662,489 $2,083,773 $20,292,679 
Capital expenditures$674,115 $1,969,138 $77,861 $2,721,114 
(a) - Our Natural Gas Liquids segment has regulated and nonregulated operations. Our Natural Gas Liquids segment’s regulated operations had revenues of $1.0 billion, of which $853.0 million related to revenues within the segment, and cost of sales and fuel of $364.9 million.
(b) - Our Natural Gas Pipelines segment has regulated and nonregulated operations. Our Natural Gas Pipelines segment’s regulated operations had revenues of $214.7 million and cost of sales and fuel of $14.4 million.
(c) - Intersegment revenues for the Natural Gas Gathering and Processing segment totaled $897.9 million. Intersegment revenues for the Natural Gas Liquids and Natural Gas Pipelines segments were not material.

Nine Months Ended
September 30, 2019
Total
Segments
Other and
Eliminations
Total
 
(Thousands of dollars)
Reconciliations of total segments to consolidated
NGL and condensate sales$6,716,318 $(878,958)$5,837,360 
Residue natural gas sales726,914 (567)726,347 
Gathering, processing and exchange services revenue435,644 435,644 
Transportation and storage revenue491,413 (11,827)479,586 
Other22,808 (984)21,824 
Total revenues (a)$8,393,097 $(892,336)$7,500,761 
Cost of sales and fuel (exclusive of depreciation and operating costs)$(5,889,634)$892,935 $(4,996,699)
Operating costs$(724,553)$964 $(723,589)
Depreciation and amortization$(347,833)$(2,719)$(350,552)
Equity in net earnings from investments$115,175 $$115,175 
Investments in unconsolidated affiliates$870,511 $$870,511 
Total assets$20,292,679 $1,043,228 $21,335,907 
Capital expenditures$2,721,114 $18,224 $2,739,338 
(a) - Noncustomer revenue for the nine months ended September 30, 2019, totaled $129.9 millionrelated primarily to gains from derivatives on commodity contracts.

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Three Months EndedNine Months Ended
September 30,September 30,
2020201920202019
(Thousands of dollars)
Reconciliation of net income to total segment adjusted EBITDA
Net income$312,316 $309,155 $304,780 $958,326 
Add:
Interest expense, net of capitalized interest176,371 129,577 535,955 362,490 
Depreciation and amortization153,245 121,430 426,014 350,552 
Income tax expense106,555 97,365 94,300 274,234 
Impairment charges0 641,754 
Noncash compensation expense1,606 9,757 1,261 20,412 
Other corporate costs and equity AFUDC (a)(5,865)(20,711)(40,524)(48,981)
Total segment adjusted EBITDA$744,228 $646,573 $1,963,540 $1,917,033 
(a) - The three and nine months ended September 30,March 31, 2020, includeincludes corporate gains of $2.2$15.8 million and $22.2 million, respectively, on extinguishment of debt related to open market repurchases.

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

The following discussion and analysis should be read in conjunction with our unaudited Consolidated Financial Statements and the Notes to Consolidated Financial Statements in this Quarterly Report, as well as our Annual Report.

RECENT DEVELOPMENTS

Please refer to the “Financial Results and Operating Information” and “Liquidity and Capital Resources” sections of Management’s Discussion and Analysis of Financial Condition and Results of Operations in this Quarterly Report for additional information.

Market Conditions, COVID-19 and Business Update - LateDespite the COVID-19 pandemic, we expect earnings growth in 2021 due primarily to increasing volumes, available capacity and efficiency gains from recently completed capital-growth projects, continued flared natural gas capture and rising gas-to-oil ratios in the first quarter 2020,Williston Basin. Although the energy industry has experienced historic events that led to a simultaneous demandmany up and supply disruption. The World Health Organization declared COVID-19 a global pandemic and recommended containment and mitigation measures worldwide, which contributed to a massive economic slowdown and decreased demand for crude oil. In addition, Saudi Arabia and Russia increased production of crude oil as the two countries competed for market share. As a result, the global supply of crude oil significantly exceeded demand and led to a collapse in crude oil prices resulting in crude oil and associated natural gas and NGLs production being curtailed. We are still experiencing global and regional economic disruption due primarily to COVID-19; however, in the third quarter 2020, many of our producers reversed curtailments, bringing production back to pre-COVID-19 levels as prices improved from second quarter 2020 lows and remained stable. Third quarter 2020 production volumes increased, compared with lows experienced during the second quarter 2020, across our system. Although the extent of volume growth in the future depends upon commodity prices and the pace and scale of economic recovery and corresponding demand for crude oil, we expect the improved volumes experienced in the third quarter 2020 to continue for the remainder of 2020 and into 2021.

We continue to monitor producers’ drilling, completion and production plans and are evaluating the impact on our future volume expectations. The energy industry has historically experienced down cycles, from disruptive events, and as a result, we have positioned ourselves to minimizereduce exposure to direct commodity price volatility. Each of our three segments’ earningsreportable segments are primarily fee-based, and we expect our consolidated earnings to be more thanapproximately 90% fee-based in 2020.2021. While our Natural Gas Gathering and Processing segment’s earnings are primarily fee-based, we have direct commodity price exposure related primarily to fee with POP with fee contracts. Under certain POP with fee contracts, our contractual fees and POP percentage may increase or decrease if production volumes, delivery pressures or commodity prices change relative to specified thresholds. In addition, although our Natural Gas Gathering and Processing and Natural Gas Liquids segments generate primarily fee-based earnings, those segments’ results of operations are exposed to volumetric risk as a result of production curtailments, reduced drilling and completion activity, declining well productivity, severe weather disruptions,disruption, operational outages and ethanecrude oil, NGL and natural gas demand. Our Natural Gas Pipelines segment is not exposed to significant volumetric risk due to nearly all of our capacity being subscribed under long-term firm fee-based contracts.

In continued response to COVID-19, we remain committed to managing the impact of the pandemic on our employees and the communities where we operate.employees. We are taking actionscontinue to continue safe operations, protect our workforce and, implement appropriate cost reduction measures. We meaningfully reduced our operating expenses in the nine months ended
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September 30, 2020, compared with the same period in 2019, primarily as a result of reduced discretionary expenses, contractor reductions and asset optimizations. We also reduced our planned 2020 capital-growth expenditures by approximately $900 million. As always, we remain focused on operating our assets safely, reliably and in an environmentally responsible manner. We continue to monitor the COVID-19 outbreak and have previously implemented our business continuity plans. ONEOK is a critical infrastructure business as defined by the United States Department of Homeland Security and, therefore, our workforce has remained fully engaged in the midst ofwithin federal, state and local government issued guidelines and safety relatedsafety-related ordinances. We continue to practice remote work procedures when possible to protect the safety of our employees and their families and have taken extracontinue to take precautions for our employees who work in the field or need to report to a ONEOK facility, such as increased facility access restrictions, workspace modifications, social distancing, face covering protocols and sanitation procedures. As COVID-19 vaccinations are becoming more readily available, we anticipate implementing a return to office plan later this year. We continue to apply risk-management and cybersecurity measures designed to ensureso that our systems remain functional in order to both serve our operational needs and to provide service to our customers.

In the first quarter 2020, dueFebruary 2021, Winter Storm Uri brought significant challenges to the energy industry and our operating areas. Our employees were proactive in preparing for the severe winter weather, made the necessary operational adjustments to keep our assets running and provided exceptional service to meet the needs of our customers during the difficult weather conditions as demand for natural gas, propane and electricity soared. This increased demand, coupled with supply reductions from wellhead freeze-offs and power outages to processing plants in the Mid-Continent and Rocky Mountain regions and the Permian Basin
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and fractionators in the Mid-Continent region, resulted in record high commodity priceprices at certain market hubs, particularly in the Mid-Continent region and market environment, we experiencedin Texas. Commodity prices quickly returned to previous levels as the weather improved and natural gas supply returned.

Winter Storm Uri impacted all three of our operating segments, resulting in a significant decline in our share price and market capitalization, and performed a Step 1 analysisnet positive impact to test our goodwill for impairment and evaluated certain long-lived asset groups and equity investments for impairment. As a result, we incurred $641.8 million in noncash impairment charges, which had an adverse impact on our financial results, as our ability to meet increased demand for natural gas and NGLs during the nine months ended September 30, 2020. period more than offset the unfavorable volume impacts. Our well-positioned natural gas storage assets and market connected pipelines in our Natural Gas Pipelines segment were able to meet critical needs during this period of severe winter weather. The reliability of our interstate and intrastate assets enabled us to continue to provide our customers access to transportation services, park-and-loan services and additional natural gas supply if available, which improved our financial results. However, wellhead freeze-offs reduced February volumes in our Natural Gas Gathering and Processing and Natural Gas Liquids segments, which negatively impacted our financial results.

We expect to maintain sufficient liquidity and financial stability for the remainder of 2020in 2021 due to cash on hand from our June 2020 equity issuance, cash flows from operations, and access to our undrawn $2.5 Billion Credit Agreement. In the first quarter 2020, the CARES Act was signed into lawAgreement, $402.4 million in response to the COVID-19 pandemic,cash and we opted into the CARES Act payroll tax deferral program, which will modestly benefit us,cash equivalents and the 401(k) penalty-free hardship withdrawal and loan deferral programs for employees.no debt maturities until 2022.

See Part I, Item 3, Quantitative and Qualitative Disclosures About Market Risk, in this Quarterly Report for more information on our exposure to market risk.

Sustainability - We continue to look for ways to reduce our environmental impact and utilize more efficient technologies. In 2021, we qualified for inclusion in the S&P Global Sustainability Yearbook and received Industry Mover status, which is awarded to a company that recorded the strongest year-over-year improvement in its industry. In addition, we received a perfect score of 100 in the Human Rights Campaign 2021 Corporate Equality Index. We have a stand-alone environmental sustainability team, formed in 2017, that accelerated our ongoing environmental stewardship efforts and is exploring ways to lower our greenhouse gas emissions. We are actively researching opportunities that will complement our extensive midstream assets and help enhance the vital role we expect to play in a future transition to a low-carbon economy.

Natural Gas - In our Natural Gas Gathering and Processing segment, gathered and processed volumes decreased in the nineRocky Mountain region increased in the three months ended September 30, 2020,March 31, 2021, compared with the same period in 2019,2020, due primarily to production curtailments from manythe completion of our crude oilcapital-growth projects and the capture of natural gas producers, primarilypreviously flared. In February 2021, we experienced severe winter weather as a result of Winter Storm Uri that reduced volumes across our operating system. However, volume levels quickly returned and exceeded 1.2 Bcf/d in the second quarter 2020,Rocky Mountain region in March 2021. We expect these Rocky Mountain region volumes to be sustainable for the remainder of 2021, even with no increase in producer activity, due to the completion of previously drilled but uncompleted wells, the capture of natural gas previously flared and natural production declinesrising gas-to-oil ratios in the Mid-Continent region.Williston Basin. In the third quarter 2020, many of our producers returned production to pre-COVID-19 levelsaddition, as commodity prices strengthened. As prices and volumes continue to strengthen, we currently have the processing capacity to benefit from production growth without significant capital investment duegrowth. Our Bear Creek plant expansion, which was previously paused, is expected to the recent completion of our Demicks Lake I and II natural gas processing plants,be completed later this year, which were placed in service in the fourth quarter 2019 and the first quarter 2020, respectively. These plants have increasedwill increase our total processing capacity to approximately 1.51.7 Bcf/d in the Williston Basin and will enable us to capture natural gas previously flared from producers on our more than 3 million dedicated acres in the Williston Basin.

Production growth may beIn our Natural Gas Pipelines segment, our assets are connected to key supply areas and demand centers, including export markets in Mexico via our Roadrunner joint venture and supply areas in Canada and the United States via our interstate and intrastate natural gas pipelines and our Northern Border Pipeline joint venture, which enable us to provide essential natural gas transportation and storage services. Continued demand from local distribution companies, electric-generation facilities and large industrial companies resulted in low-cost expansions in 2019 and 2020 that position us well to provide additional expansions for our customers when needed. In February 2021, severe winter weather impacted our operations. Due to the reliability of our pipeline and storage assets, we were able to continue to provide services to customers serving critical needs during the winter storm. Our natural gas transportation capacity contracted is not significantly impacted by market conditions, as our end users rely on natural gas to support their business regardless of commodity price fluctuations. We continue to experience stable fee-based earnings with transportation capacity more than 95% contracted with firm commitments, and we expect these stable fee-based earnings to continue throughout 2021 at similarly contracted levels. In addition, during the current litigation challengingfirst quarter 2021, we sold natural gas that we owned and held in storage, which benefited our segment’s financial results. During the continued operation of the Dakota Access Pipeline (DAPL), which is used to transport crude oil from the Williston Basin to markets in the Mid-Continent region and Gulf Coast. If DAPL is temporarily or permanently shut down, production growth could be limited due to increased crude oil transportation costs and capacity constraints in the region.extreme winter weather periods, we maximized natural gas storage withdrawals for firm service customers serving critical needs.

NGLs - In our Natural Gas Liquids segment, we areNGL volumes decreased for the largest NGL takeaway providerthree months ended March 31, 2021, compared with the same period in 2020, due primarily to the unfavorable impact of Winter Storm Uri in February 2021 across our operations, offset partially by increased volumes in the Rocky Mountain region whereregion. Volumes quickly returned, and our September 2020 average daily raw feed throughput volumes exceeded pre-COVID-19 levels andin March 2021 increased, for the three and nine months ended September 30, 2020, compared with both the same periods in 2019, due primarilyfirst and fourth quarters 2020, and we expect these improved NGL volumes to increased production at new and existing processing plants.continue. We expect the improved volumes experienced in the third quarter 2020 to continue in the remainder of 2020 and into 2021, and to benefit from increasing volumes, without significant capital investment, fromon our integrated value chain,assets, which waswere strengthened through our recently completed capital-growth projects. Our Elk Creek pipeline was completed in two phases during the second half of 2019. During the nine months ended September 30, 2020, we completed an extension of our Bakken NGL pipeline, the construction and extension of our Arbuckle II pipeline and the construction of our 125 MBbl/d MB-4 fractionator.

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Growth Projects - We operate an integrated, reliable and diversified network of NGL and natural gas gathering, processing, fractionation, storage and transportation assets connecting NGL supply in the Rocky Mountain, Mid-Continent and Permian regions with key market centers. Since the beginning of 2018, weWe have completed significant capital-growth projects that include NGL pipelines, NGL fractionators, natural gas processing plants and related natural gas and NGL infrastructure. These projects provide us the capacity to benefit from future supply growth without significant capital investment. In the first quarter 2020, due to the decline in commodity prices and economic demand disruptionsdisruption caused by COVID-19, we reduced our planned 2020 capital-growth expenditures by approximately $900 million. These reductions include the suspension of our announced plans to construct the Demicks Lake III natural gas processing plant, the fourth expansion of the West Texas LPG pipeline system, a reduction in the scope of the expansion of our Elk Creek pipeline andpaused various other paused projects, as noted in the
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table below, which can be restarted quickly when new drillingproducer activity resumes.warrants additional infrastructure. Our announced large capital-growth projects that have recently been completed or are in various stages of construction are outlined in the table below:
Project (e)ScopeApproximate
Costs (a)
Expected Completion
Natural Gas Gathering and Processing
(In millions)
Demicks Lake I plant and related infrastructure200 MMcf/d processing plant and related gathering infrastructure in the core of the Williston Basin$400Completed
October 2019
Supported by acreage dedications with long-term primarily fee-based contracts
Demicks Lake II plant and related infrastructure200 MMcf/d processing plant and related gathering infrastructure in the core of the Williston Basin$410Completed
January 2020
Supported by acreage dedications with long-term primarily fee-based contracts
Bear Creek plant expansion and related infrastructure200 MMcf/d processing plant expansion and related gathering infrastructure in the Williston Basin$405Paused (b)Q4 2021
Supported by acreage dedications with long-term primarily fee-based contracts
Natural Gas Liquids
Elk Creek pipeline and related infrastructure900-mile NGL pipeline from the Williston Basin to the Mid-Continent region, with capacity of up to 240 MBbl/d, and related infrastructure$1,400Completed
December 2019
Anchored by long-term contracts
Expansion capability up to 400 MBbl/d with additional pump facilities
Arbuckle II pipeline and related infrastructure530-mile NGL pipeline from the STACK area to Mont Belvieu, Texas, and related infrastructure$1,360Completed
March 2020
Supported by long-term contracts
Expansion capability up to 1 MMBbl/d
MB-4 fractionator and related infrastructure125 MBbl/d NGL fractionator in Mont Belvieu, Texas, and related infrastructure, which includes additional NGL storage in Mont Belvieu$575Completed
March 2020 (c)
Fully contracted with long-term contracts
West Texas LPG pipeline expansion and Arbuckle II connectionIncreasing mainline capacity by 80 MBbl/d with additional pump facilities and pipeline looping$295Completed
June 2020 (d)
Connecting West Texas LPG pipeline system to the Arbuckle II pipeline
Supported by long-term dedicated production from six third-party processing plants expected to produce up to 60 MBbl/d
Bakken NGL pipeline extension75-mile NGL pipeline in the Williston Basin connecting to a third-party processing plant$100Completed
August 2020
Supported by a long-term contract with a minimum volume commitment
Arbuckle II extension project and additional gathering infrastructureProvide additional takeaway capacity in the STACK area$240Completed
August 2020
Allow increasing volumes on the Elk Creek pipeline access to fractionation capacity at Mont Belvieu, Texas
Arbuckle II pipeline expansionIncreasing mainline capacity with additional pump facilities$60Paused (b)Q2 2021
Increases capacity to 500 MBbl/d
MB-5 fractionator and related infrastructure125 MBbl/d NGL fractionator in Mont Belvieu, Texas, and related infrastructure, which includes additional NGL storage in Mont Belvieu$750Paused (b)(c)
Fully contracted with long-term contracts
West Texas LPG pipeline expansionIncreasing mainline capacity by 40 MBbl/d$145Paused (b)
Supported by long-term dedicated production from third-party processing plants expected to produce up to 45 MBbl/d
Mid-Continent fractionation facility expansions65 MBbl/d of expansions at our Mid-Continent NGL facilities$150Paused (b)(c)
(a) - Excludes capitalized interest/AFUDC.
(b) - Given the current environment, we paused the majority of construction activities on these projects andWe do not expect to complete construction by the original target completion date.
(c) - We completed 75 MBbl/d in December 2019 and completed the remaining 50 MBbl/d in March 2020.
(d) - We completed expansions to increase mainline capacity by approximately 45 MBbl/d in the first quarter 2020 and completed the remaining portion of this project in the second quarter 2020, which was delayed due to weather.
(e) - Projects listed exclude our suspended capital-growth projects, which include the Demicks Lake III natural gas processing plant, the fourth expansionWhile many of the West Texas LPG pipeline system andconstruction activities on these projects were paused in 2020, some activity continued in order to complete the expansion of the Elk Creek pipeline.
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infrastructure necessary to support volumes until market conditions warrant full project completion.

Ethane Production - Price differentials between ethane and natural gas can cause natural gas processors to process ethane as an NGL or leave some of the ethane component in the natural gas stream. As a result of these ethane economics, ethane volumes on our system can also fluctuate period to period. Ethane volumes under long-term contracts delivered to our NGL system in the third quarter 2020 averaged 410 MBbl/d, compared with 350355 MBbl/d in the thirdfirst quarter 2019, and increased by approximately 45 MBbl/d,2021, compared with 370 MBbl/d in the secondfirst quarter 2020, due primarily to improved ethane recovery economics.decreased volumes related to Winter Storm Uri in February 2021 across our operations. We expect fluctuation inethane production to increase from the first quarter 2021 volumes and continue to fluctuate throughout 2021. We estimate that there are ethane volumes of approximately 100 MBbl/d in both the Rocky Mountain and Mid-Continent regions that represent potential ethane opportunity for the remainder of 2020 and into 2021.our Natural Gas Liquids segment.

Debt Issuances and Repayments Repurchases- In May 2020, we completed an underwritten public offering of $1.5 billion senior unsecured notes consisting of $600 million, 5.85% senior notes due 2026; $600 million, 6.35% senior notes due 2031; and $300 million, 7.15% senior notes due 2051. The net proceeds, after deducting underwriting discounts, commissions and offering expenses, were $1.48 billion. A portion of the proceeds were used to repay the remaining $1.25 billion outstanding on our $1.5 Billion Term Loan Agreement. The remainder was used for general corporate purposes.

In March 2020, we completed an underwritten public offering of $1.75 billion senior unsecured notes consisting of $400 million, 2.2% senior notes due 2025; $850 million, 3.1% senior notes due 2030; and $500 million, 4.5% senior notes due 2050. The net proceeds, after deducting underwriting discounts, commissions and offering expenses, were $1.73 billion. A portion of the proceeds were used to pay all outstanding amounts under our commercial paper program. The remainder was used for general corporate purposes, which included repayment of existing indebtedness and funding capital expenditures.

During the three and nine months ended September 30, 2020,March 31, 2021, we repurchased in the open market outstanding principal of certain of our senior notes in the amountsamount of $28.0$55.2 million and $202.3 million, respectively, for an aggregate repurchase price of $25.4$54.6 million and $177.7 million, respectively, with cash on hand. In connection with these open market repurchases, we recognized $2.2 million and $22.2 million of gains on extinguishment of debt, which is included in other income in our Consolidated Statement of Income for the three and nine months ended September 30, 2020, respectively.

Equity Issuances - In June 2020, we completed an underwritten public offering of 29.9 million shares of our common stock at a public offering price of $32.00 per share, generating net proceeds, after deducting underwriting discounts, commissions and offering expenses, of $937.0 million. A portion of the proceeds were, and we anticipate the remainder will be, used for general corporate purposes, including repayment of existing indebtedness and funding capital expenditures.

Dividends - In February 2020, May 20202021, we maintained and August 2020, we paid a quarterly dividendsdividend of $0.935 per share ($3.74 per share on an annualized basis), which represented increases of 9%, 8% and 5% when comparedis consistent with the dividends paid in the respective quarterssame quarter in the prior year. We declared a quarterly dividend of $0.935 per share ($3.74 per share on an annualized basis) in October 2020.April 2021. The quarterly dividend will be paid November 13, 2020,May 14, 2021, to shareholders of record at the close of business on November 2, 2020.April 26, 2021.

Goodwill Impairment Review- We assess our goodwill for impairment at least annually as of July 1, unless events or changes in circumstances indicate an impairment may have occurred before that time. At July 1, 2020, we assessed qualitative factors subsequent to our first quarter 2020 impairment charges discussed below, to determine whether it was more likely than not that the fair value of our Natural Gas Liquids and Natural Gas Pipelines reporting units were less than their carrying amount. After assessing qualitative factors (including macroeconomic conditions, industry and market considerations, cost factors and overall financial performance), we determined that it was more likely than not that the fair value of our Natural Gas Liquids and Natural Gas Pipelines reporting units were not less than their respective carrying value, no further testing was necessary and goodwill was not considered impaired. At July 1, 2020, there was no remaining goodwill associated with our Natural Gas Gathering and Processing reporting unit.
FINANCIAL RESULTS AND OPERATING INFORMATION

Impairments-Due to circumstances discussed above, in the first quarter 2020, we evaluated our goodwill, certain long-lived asset groups and equity investments for impairment. Based on the results, we recorded the following impairment charges:How We Evaluate Our Operations

Natural Gas GatheringManagement uses a variety of financial and Processing - Inoperating metrics to analyze our performance. Our consolidated financial metrics include: (1) operating income (loss); (2) net income (loss); (3) diluted EPS; and (4) the first quarter 2020, we recorded $380.5 millionfollowing non-GAAP financial measures: adjusted EBITDA and distributable cash flow. We evaluate segment operating results using adjusted EBITDA and our operating metrics, which include various volume and rate statistics that are relevant for the respective segment. These operating metrics allow investors to analyze the various components of noncash impairment charges related primarily to certain long-lived asset groups that were not recoverable, $153.4 millionsegment financial results in terms of noncash impairment charges related to goodwillvolumes and $30.5 million of noncash impairment charges related to our 10.2% investment in Venice Energy Services Company.

Natural Gas Liquids - In the first quarter 2020, we recorded $70.2 million of noncash impairment charges related to certain inactive assets and $7.2 million of noncash impairment charges related to our 50% investment in Chisholm Pipeline Company.

For additional information on our impairment charges, see Note A of the Notes to Consolidated Financial Statements in this Quarterly Report.

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FINANCIAL RESULTS AND OPERATING INFORMATIONprice. Management uses these metrics to analyze historical segment financial results and as the key inputs for forecasting and budgeting segment financial results. For additional information on our operating metrics, see the respective segment subsections of this “Financial Results and Operating Information” section.

Non-GAAP Financial Measures - Adjusted EBITDA, distributable cash flow and dividend coverage ratio are non-GAAP measures of our financial performance. Adjusted EBITDA is defined as net income adjusted for interest expense, depreciation and amortization, noncash impairment charges, income taxes, allowance for equity funds used during construction, noncash compensation expense and certain other noncash items. Distributable cash flow is defined as adjusted EBITDA, computed as described above, less interest expense, maintenance capital expenditures and equity earnings from investments, excluding noncash impairment charges, adjusted for net cash distributions received from unconsolidated affiliates and certain other items. Dividend coverage ratio is defined as distributable cash flow to common shareholders divided by the dividends paid in the period. We believe these non-GAAP financial measures are useful to investors because they and similar measures are used by many companies in our industry as a measurement of financial performance and are commonly employed by financial analysts and others to evaluate our financial performance and to compare financial performance among companies in our industry. Adjusted EBITDA, distributable cash flow and dividend coverage ratio should not be considered alternatives to net income, EPS or any other measure of financial performance presented in accordance with GAAP. Additionally, these calculations may not be comparable with similarly titled measures of other companies.

Consolidated Operations

Selected Financial Results - The following table sets forth certain selected financial results for the periods indicated:
Three Months EndedNine Months EndedThree MonthsNine MonthsThree Months EndedThree Months
September 30,September 30,2020 vs. 20192020 vs. 2019March 31,2021 vs. 2020
Financial ResultsFinancial Results2020201920202019$ Increase (Decrease)$ Increase (Decrease)Financial Results20212020$ Increase (Decrease)
(Millions of dollars)
(Millions of dollars, except per share amounts)
RevenuesRevenuesRevenues
Commodity salesCommodity sales$1,852.2 $1,947.8 $5,004.4 $6,567.6 (95.6)(1,563.2)Commodity sales$2,836.1 $1,808.6 1,027.5 
ServicesServices322.1 315.4 967.3 933.2 6.7 34.1 Services358.6 328.1 30.5 
Total revenuesTotal revenues2,174.3 2,263.2 5,971.7 7,500.8 (88.9)(1,529.1)Total revenues3,194.7 2,136.7 1,058.0 
Cost of sales and fuel (exclusive of items shown separately below)Cost of sales and fuel (exclusive of items shown separately below)1,265.7 1,414.5 3,483.1 4,996.7 (148.8)(1,513.6)Cost of sales and fuel (exclusive of items shown separately below)2,121.5 1,276.9 844.6 
Operating costsOperating costs205.0 245.1 636.5 723.6 (40.1)(87.1)Operating costs251.7 207.1 44.6 
Depreciation and amortizationDepreciation and amortization153.2 121.4 426.0 350.6 31.8 75.4 Depreciation and amortization157.1 132.4 24.7 
Impairment chargesImpairment charges — 604.0 —  604.0 Impairment charges 604.0 (604.0)
(Gain) loss on sale of assets — (0.6)2.9  3.5 
Operating income$550.4 $482.2 $822.7 $1,427.0 68.2 (604.3)
Gain on sale of assetsGain on sale of assets(0.3)(0.2)0.1 
Operating income (loss)Operating income (loss)$664.7 $(83.5)748.2 
Equity in net earnings from investmentsEquity in net earnings from investments$38.0 $37.6 $108.0 $115.2 0.4 (7.2)Equity in net earnings from investments$33.3 $44.6 (11.3)
Impairment of equity investmentsImpairment of equity investments$ $— $(37.7)$—  37.7 Impairment of equity investments$ $(37.7)(37.7)
Interest expense, net of capitalized interestInterest expense, net of capitalized interest$(176.4)$(129.6)$(536.0)$(362.5)46.8 173.5 Interest expense, net of capitalized interest$(185.5)$(140.6)44.9 
Net income$312.3 $309.2 $304.8 $958.3 3.1 (653.5)
Net income (loss)Net income (loss)$386.2 $(141.9)528.1 
Diluted EPSDiluted EPS$0.86 $(0.34)1.20 
Adjusted EBITDAAdjusted EBITDA$747.0 $649.8 $1,981.7 $1,919.7 97.2 62.0 Adjusted EBITDA$866.4 $700.8 165.6 
Distributable cash flowDistributable cash flow$661.9 $522.3 139.6 
Capital expendituresCapital expenditures$380.0 $1,019.2 $1,924.0 $2,739.3 (639.2)(815.3)Capital expenditures$176.7 $949.7 (773.0)
See reconciliation of net income (loss) to adjusted EBITDA and distributable cash flow in the “Adjusted EBITDA”“Non-GAAP Financial Measures” section.

Changes in commodity prices and sales volumes affect both revenues and cost of sales and fuel in our Consolidated Statements of Income and, therefore, the impact is largely offset between these line items.items, except where noted.

Operating income increased $748.2 million for the three months ended September 30, 2020,March 31, 2021, compared with the same period in 2019,2020, primarily as a result of the following:
Natural Gas Liquids - an increase of $103.4 million in exchange services due primarily to higher volumes across our system and lower rail and pipeline transportation costs, offset partially by a $20.9 million decrease in optimization and marketing due primarily to narrower location price differentials and lower optimization volumes; and
a decrease of $40.1 million in operating costs due primarily to reduced discretionary expenses, lower materials and supplies expenses and lower employee-related costs; offset partially by
an increase of $31.8 million in depreciation expense due to capital projects placed in service;
Natural Gas Gathering and Processing - a decrease of $18.8 million due primarily to lower volumes in the Mid-Continent region due to natural production declines and in the Williston Basin as a result of production curtailments; and
Natural Gas Pipelines - a decrease of $5.4 million in transportation services due primarily to lower interruptible revenue.

Operating income decreased for the nine months ended September 30, 2020, compared with the same period in 2019, primarily as a result of the following:
a decrease of $604.0 million due to noncash impairment charges in our Natural Gas Gathering and Processing and Natural Gas Liquids segments;segments in the three months ended March 31, 2020;
Natural Gas Gathering and ProcessingPipelines - a decreasean increase of $57.6$104.9 million due primarily to lower volumes in the Williston Basin as a result of production curtailments and in the Mid-Continent region due toincreased natural production declines and a decrease of $56.8 million due primarily to lower realized prices; and
an increase of $75.4 million in depreciation expense due to capital projects placed in service; offset partially bygas sales;
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Natural Gas Liquids - an increaseincreases of $208.8$63.8 million in exchange services duerelated primarily to higher volumes in the Rocky Mountain region and Permian Basin, lower rail and pipeline transportation costs, lower unfractionated NGLs held in inventory and higher average fee rates primarily in the Permian Basin, offset partially by a decrease of $113.9$38.8 million in optimization and marketing, due primarily to narrower location price differentials, lower optimization volumesoffset by a $46.2 million decrease from the impact of Winter Storm Uri in exchange services; and lower marketing earnings;
a decreaseNatural Gas Gathering and Processing - an increase of $87.1$45.6 million due primarily to lower realized prices in the prior year impacting our fee with POP contracts; offset by
an increase of $44.6 million in operating costs due primarily to reduced discretionary expenses, lower materials and supplies expenses, lower employee-related costs anda benefit related to the noncash mark-to-market impact of our share-based deferred compensation plan;plan in the prior year, higher employee-related costs, ad valorem taxes and supplies expense; and
Natural Gas Pipelines - an increase of $6.4$24.7 million in transportation servicesdepreciation expense due primarily to higher firm transportation revenue and a $13.5 million contract settlement, offset partially by lower interruptible revenue.capital projects placed in service.

Net income and diluted EPS increased for the three months ended September 30, 2020, and decreased for the nine months ended September 30, 2020,March 31, 2021, compared with the same periodsperiod in 2019,2020, due primarily to the items discussed above. The nine months ended September 30, 2020, was also negatively impacted by higher interest expense related to the settlement of the remaining $1.3 billion of our interest-rate swaps used to hedge our LIBOR-based interest payments and our underwritten public debt offerings in March and May 2020above and noncash impairment charges related to equity investments in our Natural Gas Gathering and Processing and Natural Gas Liquids segments in the prior year. These increases were offset partially by a gain on extinguishment of debthigher interest expense related to open market repurchases.higher debt balances and lower capitalized interest, and lower equity AFUDC due to completed projects.

Capital expenditures decreased for the three and nine months ended September 30, 2020,March 31, 2021, compared with the same periodsperiod in 2019,2020, due primarily to our previously completed and paused capital-growth projects as well as our paused and suspended capital-growth projects related to weakened commodity prices and economic disruptions caused by COVID-19.projects.

Additional information regarding our financial results and operating information is provided in the following discussion for each of our segments.

Natural Gas Gathering and Processing

Overview - Our Natural Gas Gathering and Processing segment provides midstream services to producers in North Dakota, Montana, Wyoming, Kansas and Oklahoma. Raw natural gas is typically gathered at the wellhead, compressed and transported through pipelines to our processing facilities. Processed natural gas, usually referred to as residue natural gas, is then recompressed and delivered to natural gas pipelines, storage facilities and end users. The NGLs separated from the raw natural gas are sold and delivered through NGL pipelines to fractionation facilities for further processing.

Our Natural Gas Gathering and Processing segment’s earnings are primarily fee-based, but we have some direct commodity price exposure related primarily to POPfee with feePOP contracts. Under certain POPfee with feePOP contracts, our contractual fees and POP percentage may increase or decrease if production volumes, delivery pressures or commodity prices change relative to specified thresholds. Due to the current commodity price environment and production curtailments from many of our producers during the second quarter 2020, our contractual fees on these certain POP with fee contracts in the Rocky Mountain region decreased, which has impacted our 2020 average fee rate. To mitigate the impact of this commodity price exposure, we have hedged a portion of our Natural Gas Gathering and Processing segment’s commodity price risk for the remainder of 20202021 and 2021.into 2022. This segment has substantial long-term acreage dedications in some of the most productive areas of the Williston Basin, which helps to mitigate volumetric risk.

Growth Projects - Our Natural Gas Gathering and Processing segment has invested in growth projects in NGL-rich areas in the Williston Basin. See “Growth Projects” in the “Recent Developments” section for discussion of our capital-growth projects.project.

For a discussion of our capital expenditure financing, see “Capital Expenditures” in the “Liquidity and Capital Resources” section.

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Selected Financial Results and Operating Information - The following table setstables set forth certain selected financial results and operating information for our Natural Gas Gathering and Processing segment for the periods indicated:
Three Months EndedNine Months EndedThree MonthsNine MonthsThree Months EndedThree Months
September 30,September 30,2020 vs. 20192020 vs. 2019March 31,2021 vs. 2020
Financial ResultsFinancial Results2020201920202019$ Increase (Decrease)$ Increase (Decrease)Financial Results20212020$ Increase (Decrease)
(Millions of dollars)
(Millions of dollars)
NGL salesNGL sales$216.3 $198.2 $488.7 $743.8 18.1 (255.1)NGL sales$457.6 $178.4 279.2 
Condensate salesCondensate sales23.5 46.7 80.6 146.2 (23.2)(65.6)Condensate sales34.2 41.5 (7.3)
Residue natural gas salesResidue natural gas sales178.5 185.3 518.4 725.7 (6.8)(207.3)Residue natural gas sales312.2 189.1 123.1 
Gathering, compression, dehydration and processing fees and other revenueGathering, compression, dehydration and processing fees and other revenue41.1 46.0 121.5 137.4 (4.9)(15.9)Gathering, compression, dehydration and processing fees and other revenue35.7 41.0 (5.3)
Cost of sales and fuel (exclusive of depreciation and operating costs)Cost of sales and fuel (exclusive of depreciation and operating costs)(207.5)(210.7)(541.9)(971.4)(3.2)(429.5)Cost of sales and fuel (exclusive of depreciation and operating costs)(555.3)(202.2)353.1 
Operating costs, excluding noncash compensation adjustmentsOperating costs, excluding noncash compensation adjustments(67.4)(87.4)(229.8)(259.2)(20.0)(29.4)Operating costs, excluding noncash compensation adjustments(80.7)(87.8)(7.1)
Equity in net loss from investments (1.8)(1.4)(4.7)1.8 3.3 
Equity in net earnings from investmentsEquity in net earnings from investments1.7 0.8 0.9 
OtherOther(1.4)(1.0)(4.6)(3.6)(0.4)(1.0)Other(0.7)(1.2)0.5 
Adjusted EBITDAAdjusted EBITDA$183.1 $175.3 $431.5 $514.2 7.8 (82.7)Adjusted EBITDA$204.7 $159.6 45.1 
Impairment chargesImpairment charges$ $— $564.4 $—  564.4 Impairment charges$ $564.4 (564.4)
Capital expendituresCapital expenditures$63.0 $245.7 $362.8 $674.1 (182.7)(311.3)Capital expenditures$39.7 $181.6 (141.9)
See reconciliation of net income (loss) to adjusted EBITDA in the “Adjusted EBITDA”“Non-GAAP Financial Measures” section.

Changes in commodity prices and sales volumes affect both revenues and cost of sales and fuel and, therefore, the impact is largely offset between these line items.

Adjusted EBITDA increased $7.8$45.1 million for the three months ended September 30, 2020,March 31, 2021, compared with the same period in 2019,2020, primarily as a result of the following:
an increase of $45.6 million due primarily to lower realized prices in the prior year impacting our fee with POP contracts; and
a decrease of $20.0$7.1 million in operating costs due primarily to lower materials and supplies expenses due to reduced asset utilization, reduced discretionary expenses and lower employee-related costs; and
an increase of $5.2 million due primarily to higher realized prices impacting our POP with fee contracts;outside services; offset partially by
a decrease of $18.8$9.0 million due primarily to lower volumes in the Mid-Continent region duerelated to Winter Storm Uri and natural production declines, and in the Williston Basin as a result of production curtailments.

Adjusted EBITDA decreased $82.7 million for the nine months ended September 30, 2020, compared with the same period in 2019, primarily as a result of the following:
a decrease of $57.6 million due primarily to loweroffset partially by higher volumes in the Williston Basin as a result of production curtailments and in the Mid-Continent region due to natural production declines; and
a decrease of $56.8 million due primarily to lower realized prices impacting our POP with fee contracts; offset partially by
a decrease of $29.4 million in operating costs due primarily to lower materials and supplies expenses due to reduced asset utilization, reduced discretionary expenses and lower employee-related costs.Rocky Mountain region.

The ninethree months ended September 30,March 31, 2020, includes $380.5 million of noncash impairment charges related primarily to certain long-lived asset groups in western Oklahoma, Kansas and the Powder River Basin, western Oklahoma and Kansas that were not recoverable, a $153.4 million noncash impairment charge related to goodwill and a $30.5 million noncash impairment charge related to our 10.2% investment in Venice Energy Services Company. For additional information on our impairment charges, see Note A of the Notes to Consolidated Financial Statements in this Quarterly Report.

Capital expenditures decreased for the three and nine months ended September 30, 2020,March 31, 2021, compared with the same periodsperiod in 2019,2020, due primarily to capital-growth projects completed in 2019 and early 2020, as well as severalour paused capital-growth projectsproject in 2020.

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Selected Operating Information - The following table sets forth selected operating information for our Natural Gas Gathering and Processing segment for the periods indicated:
Three Months EndedNine Months EndedThree Months Ended
September 30,September 30,March 31,
Operating Information (a)Operating Information (a)2020201920202019Operating Information (a)20212020
Natural gas gathered (BBtu/d)
Natural gas gathered (BBtu/d)
2,514 2,825 2,503 2,742 
Natural gas gathered (BBtu/d)
2,589 2,769 
Natural gas processed (BBtu/d) (b)
Natural gas processed (BBtu/d) (b)
2,345 2,624 2,327 2,544 
Natural gas processed (BBtu/d) (b)
2,380 2,568 
NGL sales (MBbl/d)
219 233 213 223 
Residue natural gas sales (BBtu/d) (b)
1,133 1,206 1,044 1,189 
Average fee rate ($/MMBtu)
Average fee rate ($/MMBtu)
$0.94 $0.92 $0.84 $0.92 
Average fee rate ($/MMBtu)
$1.04 $0.85 
(a) - Includes volumes for consolidated entities only.
(b) - Includes volumes we processed at company-owned and third-party facilities.

Our natural gas gathered and natural gas processed NGL sales and residue natural gas sales volumes decreased for the three and nine months ended September 30, 2020,March 31, 2021, compared with the same periodsperiod in 2019,2020, due primarily to production curtailments from somethe impact of our crude oil and natural gas producers in the Williston BasinWinter Storm Uri and natural production declines in the Mid-Continent region, offset partially by increased production in the Rocky Mountain region.

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Our average fee rate decreasedincreased for the ninethree months ended September 30, 2020,March 31, 2021, compared with the same period in 2019,2020, due primarily to production curtailmentsan increase in the second quarter 2020 on large producer contracts with higher feesRocky Mountain region’s contribution to our average fee rate and lower POP componentswas also impacted by decreased volumes in the Williston Basin.Mid-Continent region due to Winter Storm Uri.

Commodity Price Risk - See discussion regarding our commodity price risk under “Commodity Price Risk” in Item 3, Quantitative and Qualitative Disclosures about Market Risk in this Quarterly Report.

Natural Gas Liquids

Overview -Our Natural Gas Liquids segment owns and operates facilities that gather, fractionate, treat and distribute NGLs and store NGL products, primarily in Oklahoma, Kansas, Texas, New Mexico and the Rocky Mountain region, which includes the Williston, Powder River and DJ Basins. We provide midstream services to producers of NGLs and deliver those products to the two primary market centers: one in the Mid-Continent in Conway, Kansas, and the other in the Gulf Coast in Mont Belvieu, Texas. We own or have an ownership interest in FERC-regulated NGL gathering and distribution pipelines in Oklahoma, Kansas, Texas, New Mexico, Montana, North Dakota, Wyoming and Colorado, and terminal and storage facilities in Kansas, Missouri, Nebraska, Iowa and Illinois. We have a 50% ownership interest in Overland Pass Pipeline Company, which operates an interstate NGL pipeline originating in Wyoming and Colorado and terminating in Kansas. The majority of the pipeline-connected natural gas processing plants in the Williston Basin, Oklahoma, Kansas and the Texas Panhandle are connected to our NGL gathering systems. We lease rail cars and own and operate truck- and rail-loading and -unloading facilities connected to our NGL fractionation, storage and pipeline assets. We also own FERC-regulated NGL distribution pipelines in Kansas, Missouri, Nebraska, Iowa, Illinois and Indiana that connect our Mid-Continent assets with Midwest markets, including Chicago, Illinois. A portion of our ONEOK North System transports refined petroleum products, including unleaded gasoline and diesel, from Kansas to Iowa.

Growth Projects - Our Natural Gas Liquids segment invests in projects to transport, fractionate, store and deliver to market centers NGL supply from shale and other resource development areas. Our growth strategy is focused around connecting diversified supply basins from the Rocky Mountain region through the Mid-Continent region and the Permian Basin with NGL product demand from the petrochemical and refining industries and NGL export demand in the Gulf Coast. See “Growth Projects” in the “Recent Developments” section for discussion of our capital-growth projects.

In the nine months ended September 30, 2020, we connected two third-party natural gas processing plants in the Permian Basin and two third-party natural gas processing plants in the Rocky Mountain region to our NGL system. In addition, one affiliate and two third-party natural gas processing plants in the Rocky Mountain region and one third-party natural gas processing plant in the Mid-Continent region connected to our system were expanded.

For a discussion of our capital expenditure financing, see “Capital Expenditures” in the “Liquidity and Capital Resources” section.

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Selected Financial Results and Operating Information - The following table setstables set forth certain selected financial results and operating information for our Natural Gas Liquids segment for the periods indicated:
Three Months EndedNine Months EndedThree MonthsNine MonthsThree Months EndedThree Months
September 30,September 30,2020 vs. 20192020 vs. 2019March 31,2021 vs. 2020
Financial ResultsFinancial Results2020201920202019$ Increase (Decrease)$ Increase (Decrease)Financial Results20212020$ Increase (Decrease)
(Millions of dollars)
(Millions of dollars)
NGL and condensate salesNGL and condensate sales$1,658.1 $1,746.6 $4,429.4 $5,826.3 (88.5)(1,396.9)NGL and condensate sales$2,414.8 $1,596.7 818.1 
Exchange service revenues and otherExchange service revenues and other134.3 107.5 377.7 316.9 26.8 60.8 Exchange service revenues and other146.5 123.1 23.4 
Transportation and storage revenuesTransportation and storage revenues39.8 46.4 131.4 141.4 (6.6)(10.0)Transportation and storage revenues48.7 50.8 (2.1)
Cost of sales and fuel (exclusive of depreciation and operating costs)Cost of sales and fuel (exclusive of depreciation and operating costs)(1,289.7)(1,438.2)(3,473.6)(4,914.5)(148.5)(1,440.9)Cost of sales and fuel (exclusive of depreciation and operating costs)(2,060.3)(1,278.8)781.5 
Operating costs, excluding noncash compensation adjustmentsOperating costs, excluding noncash compensation adjustments(97.0)(109.3)(290.6)(322.9)(12.3)(32.3)Operating costs, excluding noncash compensation adjustments(116.0)(94.4)21.6 
Equity in net earnings from investmentsEquity in net earnings from investments8.0 15.9 31.1 49.4 (7.9)(18.3)Equity in net earnings from investments3.6 15.3 (11.7)
OtherOther(2.3)(1.4)(5.6)(4.7)(0.9)(0.9)Other(1.7)(1.8)0.1 
Adjusted EBITDAAdjusted EBITDA$451.2 $367.5 $1,199.8 $1,091.9 83.7 107.9 Adjusted EBITDA$435.6 $410.9 24.7 
Impairment chargesImpairment charges$ $— $77.4 $—  77.4 Impairment charges$ $77.4 (77.4)
Capital expendituresCapital expenditures$298.9 $738.0 $1,504.9 $1,969.1 (439.1)(464.2)Capital expenditures$112.0 $746.2 (634.2)
See reconciliation of net income (loss) to adjusted EBITDA in the “Adjusted EBITDA”“Non-GAAP Financial Measures” section.

Changes in commodity prices and sales volumes affect both revenues and cost of sales and fuel and, therefore, the impact is largely offset between these line items.

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Adjusted EBITDA increased $83.7$24.7 million for the three months ended September 30, 2020,March 31, 2021, compared with the same period in 2019,2020, primarily as a result of the following:
an increase of $103.4$63.8 million in exchange services (excluding the impact of Winter Storm Uri discussed below) due primarily to $48.7to:
$51.8 million in higher volumes across our system, $43.5in the Rocky Mountain region,
$32.9 million in lower costs due primarily to lower rail and pipeline transportation costs, and $17.9
$15.8 million related to wider commodity price differentials, offset by
$19.0 million in lower average fee rates,
$13.2 million in lower volumes in the Permian Basin due to short-term contracts and increased ethane rejection, and
$9.5 million related to lower earnings on unfractionated NGLs held in inventory; and
a decreasean increase of $12.3 million in operating costs due primarily to reduced discretionary expenses; offset partially by
a decrease of $20.9$38.8 million in optimization and marketing due primarily to a decrease of $24.2 million due to narrower location price differentialsincreased activities during Winter Storm Uri and lower optimization volumes and lower marketing earnings of $13.1 million due to lower earnings from purity NGL inventory sales andunfavorable changes in the value of NGLs held in inventory in 2020; offset partially by an increase of $16.7 million due to wider product price differentials; and
a decreasethe negative impact of $7.9 million from lower equity in net earnings from investments due primarily to lower volumes on Overland Pass Pipeline.

Adjusted EBITDA increased $107.9 million for the nine months ended September 30, 2020, compared with the same period in 2019, primarily as a resultWinter Storm Uri of the following:
an increase of $208.8$46.2 million in exchange services due primarily to $91.8 million in higherdecreased volumes in the Rocky Mountain regionacross our operations and Permian Basin, $83.6 million in lower costs due primarily to lower rail and pipeline transportation costs, $25.8 million related to lower unfractionated NGLs held in inventory, $24.1 million in higher average fee rates primarily in the Permian Basin, and $18.4 million in higher fees charged to customers with minimum volume obligations primarily in the Rocky Mountain region, offset partially by $21.8 million in lower volumes in the Mid-Continent region and $11.7 million in narrower product price differentials; andincreased electricity costs;
a decreasean increase of $32.3$21.6 million in operating costs due primarily to reduced discretionary expenses; offset partially by
a decrease of $113.9 million in optimizationhigher employee-related costs and marketing due primarily to a decrease of $75.4 million related to narrower location price differentials and lower optimization volumes, lower marketing earnings of $43.4 million due to lower earnings from purity NGL inventory sales and changes in the value of NGLs held in inventory;increased ad valorem taxes associated with our completed capital-growth projects; and
a decrease of $18.3$11.7 million from lower equity in net earnings from investments due primarily to lower volumes on Overland Pass Pipeline.

The ninethree months ended September 30,March 31, 2020, includes $70.2 million of noncash impairment charges related to certain inactive assets and a $7.2 million noncash impairment charge related to our 50% investment in Chisholm Pipeline Company. For additional information on our impairment charges, see Note A of the Notes to Consolidated Financial Statements in this Quarterly Report.
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Capital expenditures decreased for the three and nine months ended September 30, 2020,March 31, 2021, compared with the same periodsperiod in 2019,2020, due primarily to completed and paused capital-growth projects.

Selected Operating Information - The following table sets forth selected operating information for our Natural Gas Liquids segment for the periods indicated:
Three Months EndedNine Months EndedThree Months Ended
September 30,September 30,March 31,
Operating InformationOperating Information2020201920202019Operating Information20212020
Raw feed throughput (MBbl/d) (a)
Raw feed throughput (MBbl/d) (a)
1,162 1,086 1,088 1,074 
Raw feed throughput (MBbl/d) (a)
1,036 1,091 
Average Conway-to-Mont Belvieu OPIS price differential - ethane in ethane/propane mix ($/gallon)
Average Conway-to-Mont Belvieu OPIS price differential - ethane in ethane/propane mix ($/gallon)
$0.03 $0.08 $0.01 $0.08 
Average Conway-to-Mont Belvieu OPIS price differential - ethane in ethane/propane mix ($/gallon)
$(0.02)$0.01 
(a) - Represents physical raw feed volumes on which we charge a fee for transportation and/or fractionation services.

Volumes increaseddecreased for the three and nine months ended September 30, 2020,March 31, 2021, compared with the same periodsperiod in 2019,2020, due primarily to the unfavorable impact of Winter Storm Uri across our operations, offset partially by increased production at new and existing processing plants in the Rocky Mountain region and Permian Basin, offset partially by the unfavorable impact from producer curtailments primarily in the second quarter 2020. The three months ended September 30, 2020, was also favorably impacted by increased ethane volumes in the Mid-Continent region.

Natural Gas Pipelines

Overview - Our Natural Gas Pipelines segment, through its wholly owned assets primarily in Oklahoma, Texas and the upper Midwest, provides transportation and storage services to end users, such as natural gas distribution and electric-generation companies, that require natural gas to operate their businesses regardless of location price differentials. We have 50% ownership interests in Northern Border Pipeline and Roadrunner, which provide transportation services to various end users.

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Selected Financial Results and Operating Information- The following table setstables set forth certain selected financial results and operating information for our Natural Gas Pipelines segment for the periods indicated:
Three Months EndedNine Months EndedThree MonthsNine MonthsThree Months EndedThree Months
September 30,September 30,2020 vs. 20192020 vs. 2019March 31,2021 vs. 2020
Financial ResultsFinancial Results2020201920202019$ Increase (Decrease)$ Increase (Decrease)Financial Results20212020$ Increase (Decrease)
(Millions of dollars)
(Millions of dollars)
Transportation revenuesTransportation revenues$96.4 $102.4 $303.1 $296.2 (6.0)6.9 Transportation revenues$117.1 $101.9 15.2 
Storage revenuesStorage revenues16.6 17.5 50.1 53.8 (0.9)(3.7)Storage revenues15.8 16.5 (0.7)
Residue natural gas sales and other revenuesResidue natural gas sales and other revenues4.3 1.6 6.9 5.5 2.7 1.4 Residue natural gas sales and other revenues115.9 2.4 113.5 
Cost of sales and fuel (exclusive of depreciation and operating costs)Cost of sales and fuel (exclusive of depreciation and operating costs)(3.4)(0.4)(5.1)(3.8)3.0 1.3 Cost of sales and fuel (exclusive of depreciation and operating costs)(10.0)(1.5)8.5 
Operating costs, excluding noncash compensation adjustmentsOperating costs, excluding noncash compensation adjustments(33.4)(38.6)(99.0)(108.1)(5.2)(9.1)Operating costs, excluding noncash compensation adjustments(40.1)(34.7)5.4 
Equity in net earnings from investmentsEquity in net earnings from investments30.1 23.5 78.3 70.4 6.6 7.9 Equity in net earnings from investments28.0 28.6 (0.6)
OtherOther(0.8)(2.2)(2.1)(3.0)1.4 0.9 Other(0.5)(0.7)0.2 
Adjusted EBITDAAdjusted EBITDA$109.8 $103.8 $332.2 $311.0 6.0 21.2 Adjusted EBITDA$226.2 $112.5 113.7 
Capital expendituresCapital expenditures$13.0 $27.8 $40.5 $77.9 (14.8)(37.4)Capital expenditures$21.2 $16.6 4.6 
See reconciliation of net income (loss) to adjusted EBITDA in the “Adjusted EBITDA”“Non-GAAP Financial Measures” section.

Adjusted EBITDA increased $6.0$113.7 million for the three months ended September 30, 2020,March 31, 2021, compared with the same period in 2019,2020, primarily as a result of the following:
an increase of $6.6$104.9 million from higher equity in net earnings from investments due primarily to additional transportation capacity contractedhigher average natural gas prices on Northern Border; and
a decrease5.2 Bcf of $5.2 millionnatural gas sales in operating costs due primarily to lower materials and supplies expenses and employee-related costs; offset partially by
a decreasethe first quarter 2021 of $5.4 millionvolumes previously held in transportation services due primarily to lower interruptible revenue.

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Adjusted EBITDA increased $21.2 million for the nine months ended September 30, 2020,inventory, compared with 1.2 Bcf in the same period in 2019, primarily as a result of the following:
first quarter 2020; a decrease of $9.1 million in operating costs due primarily to lower materials and supplies expenses and employee-related costs;
an increase of $7.9 million from higher equity in net earnings from investments due primarily to additional transportation capacity contracted on Northern Border;and
an increase of $6.4$15.4 million in transportation services due primarily to higher firm transportationpark-and-loan revenue and a $13.5 million contract settlement, offset partially by lowerhigher interruptible transportation revenue; offset partially by
a decreasean increase of $3.4$5.4 million from storage servicesin operating costs due primarily to lower parkhigher employee-related costs and loan activity.supplies expenses.

Capital expenditures decreasedincreased for the three and nine months ended September 30, 2020,March 31, 2021, compared with the same periodsperiod in 2019,2020, due primarily to the completion of our expansion projects in 2019.capital-growth projects.

Selected Operating Information - The following table sets forth selected operating information for our Natural Gas Pipelines segment for the periods indicated:
Three Months EndedNine Months EndedThree Months Ended
September 30,September 30,March 31,
Operating Information (a)Operating Information (a)2020201920202019Operating Information (a)20212020
Natural gas transportation capacity contracted (MDth/d)
Natural gas transportation capacity contracted (MDth/d)
7,349 7,628 7,485 7,568 
Natural gas transportation capacity contracted (MDth/d)
7,423 7,791 
Transportation capacity contractedTransportation capacity contracted94 %98 %96 %98 %Transportation capacity contracted95 %100 %
(a) - Includes volumes for consolidated entities only.

Natural gas transportation capacity contracted decreased for the three and nine months ended September 30, 2020,March 31, 2021, compared with the same periodsperiod in 2019,2020, due primarily to a contract settlement andin the impact of current market conditions on demand for our services.second quarter 2020.

Roadrunner, in which we have a 50% ownership interest, has contracted all of its westbound capacity through 2041.

Northern Border Pipeline, in which we have a 50% ownership interest, has contracted substantially all of its long-haul transportation capacity through the fourth quarter 2020.2021.

In June 2019,February 2021, our subsidiary, VikingMidwestern Gas Transmission Company, (Viking), filed a proposed change in rates pursuant to Section 4 of the Natural Gas Act with the FERC. In February 2020, Viking filed a Stipulation and Offer of Settlement (Settlement) with the FERC for approval. The FERC acceptedis currently reviewing the Settlement in July 2020, which willfiling. While the ultimate outcome of the filing cannot be predicted, we do not expect the ultimate outcome to impact materially our results of operations.

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Adjusted EBITDA

Adjusted EBITDA is a non-GAAP measure of our financial performance. Adjusted EBITDA is defined as net income adjusted for interest expense, depreciation and amortization, noncash impairment charges, income taxes, allowance for equity funds used during construction, noncash compensation expense and other noncash items. We believe this non-GAAP financial measure is useful to investors because it and similar measures are used by many companies in our industry as a measurement of financial performance and is commonly employed by financial analysts and others to evaluate our financial performance and to compare financial performance among companies in our industry. Adjusted EBITDA should not be considered an alternative to net income, earnings per share or any other measure of financial performance presented in accordance with GAAP. Additionally, this calculation may not be comparable with similarly titled measures of other companies.

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Non-GAAP Financial Measures

The following table sets forth a reconciliation of net income (loss), the nearest comparable GAAP financial performance measure, to adjusted EBITDA, distributable cash flow and dividend coverage for the periods indicated:
Three Months EndedNine Months Ended
September 30,September 30,
2020201920202019
Reconciliation of net income to adjusted EBITDA
(Thousands of dollars)
Net income$312,316 $309,155 $304,780 $958,326 
Add:
Interest expense, net of capitalized interest176,371 129,577 535,955 362,490 
Depreciation and amortization153,245 121,430 426,014 350,552 
Income tax expense106,555 97,365 94,300 274,234 
Impairment charges — 641,754 — 
Noncash compensation expense (a)1,606 9,757 1,261 20,412 
Equity AFUDC and other noncash items(3,084)(17,532)(22,346)(46,357)
Adjusted EBITDA$747,009 $649,752 $1,981,718 $1,919,657 
Reconciliation of segment adjusted EBITDA to adjusted EBITDA
Segment adjusted EBITDA:
Natural Gas Gathering and Processing$183,148 $175,292 $431,545 $514,159 
Natural Gas Liquids451,243 367,462 1,199,801 1,091,863 
Natural Gas Pipelines109,837 103,819 332,194 311,011 
Other (b)2,781 3,179 18,178 2,624 
Adjusted EBITDA$747,009 $649,752 $1,981,718 $1,919,657 
Three Months Ended
March 31,
20212020
Reconciliation of net income (loss) to adjusted EBITDA, distributable cash flow and dividend coverage
(Thousands of dollars, except per share amounts and coverage ratios)
Net income (loss)$386,176 $(141,857)
Add:
Interest expense, net of capitalized interest185,523 140,616 
Depreciation and amortization157,120 132,353 
Income tax expense (benefit)122,132 (55,395)
Impairment charges— 641,754 
Noncash compensation expense (a)16,283 (1,302)
Equity AFUDC and other noncash items(813)(15,409)
Adjusted EBITDA (b)866,421 700,760 
Interest expense, net of capitalized interest(185,523)(140,616)
Maintenance capital(23,690)(25,189)
Equity in net earnings from investments(33,320)(44,627)
Distributions received from unconsolidated affiliates41,053 48,526 
Other (b)(3,080)(16,524)
Distributable cash flow661,861 522,330 
Dividends paid to preferred shareholders(275)(275)
Distributable cash flow to shareholders661,586 522,055 
Dividends paid(415,954)(386,392)
Distributable cash flow in excess of dividends paid$245,632 $135,663 
Dividends paid per share$0.935 $0.935 
Dividend coverage ratio1.59 1.35 
Number of shares used in computation (thousands)
444,871 413,253 
(a) - The threeIncludes a loss of $3.9 million and nine months ended September 30, 2020, include a benefit of $2.4 million and $16.9$18.8 million related to the mark-to-market of ONEOK’sour share-based deferred compensation plan.plan for the three months ended March 31, 2021 and 2020, respectively.
(b) - The three and nineThree months ended September 30,March 31, 2020, include corporateincludes gains of $2.2$15.8 million and $22.2 million, respectively, on extinguishment of debt related to open market repurchases.

Three Months Ended
March 31,
20212020
Reconciliation of segment adjusted EBITDA to adjusted EBITDA
Segment adjusted EBITDA:
Natural Gas Gathering and Processing$204,716 $159,648 
Natural Gas Liquids435,628 410,916 
Natural Gas Pipelines226,175 112,524 
Other (a)(98)17,672 
Adjusted EBITDA$866,421 $700,760 
(a) - Three months ended March 31, 2020, includes corporate gains of $15.8 million on extinguishment of debt related to open market repurchases.

CONTINGENCIES

See Note J of the Notes to Consolidated Financial Statements in this Quarterly Report for discussion of our legal proceedings.

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LIQUIDITY AND CAPITAL RESOURCES

General - Our primary sources of cash inflows are operating cash flows, proceeds from our commercial paper program and our $2.5 Billion Credit Agreement, debt issuances and the issuance of common stock for our liquidity and capital resources requirements. In addition, we expect cash outflows for the remainder of 20202021 to be primarily related to dividends paid to shareholders and interest.capital expenditures.

We expect our sources of cash inflows to provide sufficient resources to finance our operations and quarterly cash dividends. We believe we have sufficient liquidity in this challenging market environment due to our $2.5 Billion Credit Agreement, which expires in June 2024 cash on hand from our June 2020 equity issuance and access to $1.0 billion available through our “at-the-market” equity program. As of the date of this report, we had no borrowings under our $2.5 Billion Credit Agreement, and no shares have been sold through our “at-the-market” equity program.

We manage interest-rate risk through the use of fixed-rate debt, floating-rate debt and interest-rate swaps. For additional information on our interest-rate swaps, see Note C of the Notes to Consolidated Financial Statements in this Quarterly Report.

Guarantees and Cash Management - In March 2020, the SEC amended Rule 3-10 of Regulation S-X and created Rule 13-01 to simplify disclosure requirements related to certain registered securities. We and ONEOK Partners are issuers of certain public debt securities. We guarantee certain indebtedness of ONEOK Partners, and ONEOK Partners and the Intermediate Partnership guarantee certain of our indebtedness. The guarantees in place for our and ONEOK Partners’ indebtedness are full, irrevocable, unconditional and absolute joint and several guarantees to the holders of each series of outstanding securities. Liabilities under the guarantees rank equally in right of payment with all existing and future senior unsecured indebtedness. As ONEOK Partners and the Intermediate Partnership are consolidated subsidiaries of ONEOK, separate financial statements for the guarantors are not required as long as the alternative disclosure required by Rule 13-01 is provided, which includes narrative disclosure and summarized financial information. The Intermediate Partnership holds all of ONEOK Partners’ interests and equity in its subsidiaries, which are non-guarantors. We do not have any material assets other than our ownership of all the
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interests in ONEOK Partnersnon-guarantors, and substantially all the assets and operations reside with non-guarantor operating subsidiaries. Therefore, as allowed under Rule 13-01, we have excluded the summarized financial information for each issuer and guarantor.guarantor as the combined financial information of the subsidiary issuer and parent guarantor, excluding our ownership of all the interests in ONEOK Partners, reflect no material assets, liabilities or results of operations, apart from the guaranteed indebtedness. For additional information on our and ONEOK Partners’ indebtedness, see Note D of the Notes to Consolidated Financial Statements in this Quarterly Report.

We use a centralized cash management program that concentrates the cash assets of our non-guarantor operating subsidiaries in joint accounts for the purposes of providing financial flexibility and lowering the cost of borrowing, transaction costs and bank fees. Our centralized cash management program provides that funds in excess of the daily needs of our operating subsidiaries are concentrated, consolidated or otherwise made available for use by other entities within our consolidated group. Our operating subsidiaries participate in this program to the extent they are permitted pursuant to FERC regulations or their operating agreements. Under the cash management program, depending on whether a participating subsidiary has short-term cash surpluses or cash requirements, we provide cash to the subsidiary or the subsidiary provides cash to us.

Short-term Liquidity - Our principal sources of short-term liquidity consist of cash generated from operating activities, distributions received from our equity-method investments, proceeds from our commercial paper program and our $2.5 Billion Credit Agreement. As of September 30, 2020,March 31, 2021, we are in compliance with all covenants of the $2.5 Billion Credit Agreement.

At September 30, 2020,March 31, 2021, we had no borrowings under our $2.5 Billion Credit Agreement and $447.1$402.4 million of cash and cash equivalents.

As of September 30, 2020,March 31, 2021, we had a working capital surplusdeficit of $627.2$50.4 million (defined as current assets less current liabilities). Generally, ourAlthough working capital is influenced by several factors, including, among other things: (i) the timing of (a) debt and equity issuances, (b) the funding of capital expenditures, (c) scheduled debt payments, and (d) the collection and payment of accounts receivable and payable; and (ii) the volume and cost of inventory and commodity imbalances.imbalances, our working capital deficit at March 31, 2021, was driven primarily by current maturities of long-term debt. We may have working capital deficits in future periods as we continue to repay long-term debt and financedebt. We do not expect this working capital deficit to have an adverse impact to our capital-growth projects.cash flows or operations.

For additional information on our $2.5 Billion Credit Agreement, see Note D of the Notes to Consolidated Financial Statements in this Quarterly Report.

Long-term Financing - In addition to our principal sources of short-term liquidity discussed above, we expect to fund our longer-term financing requirements by issuing long-term notes. Other options to obtain financing include, but are not limited to, issuing common stock, loans from financial institutions, issuance of convertible debt securities or preferred equity securities, asset securitization and the sale and lease-back of facilities.
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Debt Issuances - In May 2020, we completed an underwritten public offering of $1.5 billion senior unsecured notes consisting of $600 million, 5.85% senior notes due 2026; $600 million, 6.35% senior notes due 2031; and $300 million, 7.15% senior notes due 2051. The net proceeds, after deducting underwriting discounts, commissions and offering expenses, were $1.48 billion. A portion of the proceeds were used to repay the outstanding borrowings under our $1.5 Billion Term Loan Agreement. The remainder was used for general corporate purposes.

In March 2020, we completed an underwritten public offering of $1.75 billion senior unsecured notes consisting of $400 million, 2.2% senior notes due 2025; $850 million, 3.1% senior notes due 2030; and $500 million, 4.5% senior notes due 2050. The net proceeds, after deducting underwriting discounts, commissions and offering expenses, were $1.73 billion. A portion of the proceeds were used to pay all outstanding amounts under our commercial paper program. The remainder was used for general corporate purposes, which included repayment of other existing indebtedness and funding capital expenditures.

Debt RepaymentsRepurchases - In May 2020, we repaid the remaining $1.25 billion of our $1.5 Billion Term Loan Agreement with cash on hand from our May 2020 public offering of $1.5 billion senior unsecured notes.

During the three and nine months ended September 30, 2020,March 31, 2021, we repurchased in the open market outstanding principal of certain of our senior notes in the amountsamount of $28.0$55.2 million and $202.3 million, respectively, for an aggregate repurchase price of $25.4$54.6 million and $177.7 million, respectively, with cash on hand. In connection with these open market repurchases, we recognized $2.2 million and $22.2 million of gains on extinguishment of debt, which is included in other income in our Consolidated Statement of Income for the three and nine months ended September 30, 2020, respectively. We may continue to repurchase debt securities issued by us and our affiliates in the future through open market purchases, privately negotiated transactions, tender offers, exchange offers, or otherwise, upon such terms and at such prices as we may from time to time determine for cash or other consideration.

For additional information on our long-term debt, see Note D of the Notes to Consolidated Financial Statements in this Quarterly Report.

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Equity Issuances - In July 2020, we established an “at-the-market” equity program for the offer and sale from time to time of our common stock up to an aggregate offering price of $1.0 billion. The program allows us to offer and sell common stock at prices we deem appropriate through a sales agent, in forward sales transactions through a forward seller or directly to one or more of the program’s managers acting as principals. Sales of our common stock may be made by means of ordinary brokers’ transactions on the NYSE, in block transactions or as otherwise agreed to between us and the sales agent. We are under no obligation to offer and sell common stock under the program. No shares have been sold through our “at-the-market” program as of the date of this report.

In June 2020, we completed an underwritten public offering of 29.9 million shares of our common stock at a public offering price of $32.00 per share, generating net proceeds, after deducting underwriting discounts, commissions and offering expenses, of $937.0 million. A portion of the proceeds were, and we anticipate the remainder will be, used for general corporate purposes, including repayment of existing indebtedness and funding capital expenditures.

Capital Expenditures - We classify expenditures that are expected to generate additional revenue, return on investment or significant operating efficiencies as capital-growth expenditures. Maintenance capital expenditures are those capital expenditures required to maintain our existing assets and operations and do not generate additional revenues. Maintenance capital expenditures are made to replace partially or fully depreciated assets, to maintain the existing operating capacity of our assets and to extend their useful lives. Our capital expenditures are financed typically through operating cash flows and short- and long-term debt.

Capital expenditures, excluding AFUDC and capitalized interest, were $1.9 billion$176.7 million and $2.7 billion$949.7 million for the ninethree months ended September 30,March 31, 2021 and 2020, and 2019, respectively.

We expect our remaining 2020total capital expenditures, to be funded with cash on hand. Excluding our pausedexcluding AFUDC and suspended projects, we have completed allcapitalized interest, of our announced capital-growth projects. See discussion$525-$675 million in the “Recent Developments” section.2021.

Credit Ratings - Our long-term debt credit ratings as of OctoberApril 19, 2020,2021, are shown in the table below:
Rating AgencyLong-Term RatingShort-Term RatingOutlook
Moody’sBaa3Prime-3Stable
S&PBBBA-2Stable
FitchBBBF2Stable

Our credit ratings, which are investment grade, may be affected by a material change in our financial ratios or a material event affecting our business and industry. Although we are in the midst of a challenging market environment, our credit ratings have not been materially affected.remained stable. The most common criteria for assessment of our credit ratings are the debt-to-EBITDA ratio, interest coverage, business risk profile and liquidity. If our credit ratings were downgraded, our cost to borrow funds under our $2.5 Billion Credit Agreement wouldcould increase and a potential loss of access to the commercial paper market could occur. In the event that we are unable to borrow funds under our commercial paper program and there has not been a material adverse change in our business, we would continue to have access to our $2.5 Billion Credit Agreement, which expires in 2024. An adverse credit rating change alone is not a default under our $2.5 Billion Credit Agreement.

In the normal course of business, our counterparties provide us with secured and unsecured credit. In the event of a downgrade in our credit ratings or a significant change in our counterparties’ evaluation of our creditworthiness, we could be required to provide additional collateral in the form of cash, letters of credit or other negotiable instruments as a condition of continuing to conduct business with such counterparties. We may be required to fund margin requirements with our counterparties with cash, letters of credit or other negotiable instruments.

Dividends - Holders of our common stock share equally in any common stock dividends declared by our Board of Directors, subject to the rights of the holders of outstanding preferred stock. In February 2020, May 2020 and August 20202021, we paid a dividend of $0.935 per share ($3.74 per share on an annualized basis). A dividend of $0.935 per share was declared for the shareholders of record at the close of business on November 2, 2020,April 26, 2021, payable November 13, 2020.May 14, 2021.

Our Series E Preferred Stock pays quarterly dividends on each share of Series E Preferred Stock, when, as and if declared by our Board of Directors, at a rate of 5.5% per year. We paid dividends for the Series E Preferred Stock of $0.3 million in February 2020, May 2020 and August 2020.2021. Dividends totaling $0.3 million were declared for the Series E Preferred Stock and are payable November 13, 2020.May 14, 2021.

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For the ninethree months ended September 30, 2020, our cash dividends paid exceededMarch 31, 2021, our cash flows from operations exceeded dividends paid by $86.4 million, primarily resulting from the effects of the market conditions that began in March 2020 and the resulting impact of producer curtailments on$117.1 million. We expect our cash flows. As a result,flows from operations to continue to sufficiently fund our cash dividends. To the extent operating cash flows are not sufficient to fund our dividends, we utilizedmay utilize cash on hand from other sources of short- and long-term liquidity to fund a portion of our dividends. We expect the improved volumes and cash flows experienced in the third quarter 2020 to continue for the remainder of the year and into 2021. However, cash dividends paid may exceed our cash flows from operations for the year ending December 31, 2020, and therefore, we may continue to utilize cash on hand from other sources of short- and long-term liquidity to fund a small portion of our dividends.

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CASH FLOW ANALYSIS

We use the indirect method to prepare our Consolidated Statements of Cash Flows. Under this method, we reconcile net income to cash flows provided by operating activities by adjusting net income for those items that affect net income but do not result in actual cash receipts or payments during the period and for operating cash items that do not impact net income. These reconciling items can include depreciation and amortization, impairment charges, allowance for equity funds used during construction, gain or loss on sale of assets, deferred income taxes, net undistributed earnings from equity-method investments, share-based compensation expense, other amounts and changes in our assets and liabilities not classified as investing or financing activities.

The following table sets forth the changes in cash flows by operating, investing and financing activities for the periods indicated:
VariancesVariances
Nine Months Ended2020 vs. 2019Three Months Ended2021 vs. 2020
September 30,Favorable
(Unfavorable)
March 31,Favorable
(Unfavorable)
20202019 20212020
(Millions of dollars)
(Millions of dollars)
Total cash provided by (used in):Total cash provided by (used in):   Total cash provided by (used in):   
Operating activitiesOperating activities$1,103.1 $1,326.8 $(223.7)Operating activities$533.3 $422.7 $110.6 
Investing activitiesInvesting activities(1,981.9)(2,647.9)666.0 Investing activities(170.7)(964.8)794.1 
Financing activitiesFinancing activities1,304.9 1,982.4 (677.5)Financing activities(484.7)1,052.7 (1,537.4)
Change in cash and cash equivalentsChange in cash and cash equivalents426.1 661.3 (235.2)Change in cash and cash equivalents(122.1)510.6 (632.7)
Cash and cash equivalents at beginning of periodCash and cash equivalents at beginning of period21.0 12.0 9.0 Cash and cash equivalents at beginning of period524.5 21.0 503.5 
Cash and cash equivalents at end of periodCash and cash equivalents at end of period$447.1 $673.3 $(226.2)Cash and cash equivalents at end of period$402.4 $531.6 $(129.2)

Operating Cash Flows - Operating cash flows are affected by earnings from our business activities and changes in our operating assets and liabilities. Changes in commodity prices and demand for our services or products, whether because of general economic conditions, changes in supply, changes in demand for the end products that are made with our products or increased competition from other service providers, could affect our earnings and operating cash flows. Our operating cash flows can also be impacted by changes in our NGLs and natural gas inventory balances, which are driven primarily by commodity prices, supply, demand and the operation of our assets.

Cash flows from operating activities, before changes in operating assets and liabilities for the ninethree months ended September 30, 2020, decreased $116.3March 31, 2021, increased $128.8 million compared with the same period in 2019.2020. This decreaseincrease is due primarily to higher interest expense, lower volumes and lower realized pricesnatural gas sales in our Natural Gas Gathering and ProcessingPipelines segment, and lower optimization and marketing earnings in our Natural Gas Liquids segment. These decreases were offset partially by an increase in exchange services due to higher volumes and lower rail and pipeline transportation costs in our Natural Gas Liquids segment and lower operating costs across our segments, as discussed in “Financial Results and Operating Information.”

The changes in operating assets and liabilities decreased operating cash flows $346.6$138.4 million for the ninethree months ended September 30, 2020,March 31, 2021, compared with a decrease of $239.2$120.2 million for the same period in 2019.2020. This change is due primarily to changes in accounts payable and other accruals and deferralsreceivable resulting from the timing of receipt of cash from customers and NGLs and natural gas in storage, which varies from period to period and with changes in commodity prices; offset partially by changes in accounts payable resulting from the timing of payments to vendors, suppliers and other third parties; and changes in risk-management assets and liabilities which include a loss on the settlement of $750 million of our forward-starting interest-rate swaps related to our March 2020 issuance of senior unsecured notes and changes in the fair value of risk-management assets and liabilities,commodity imbalances, which vary from period to period and with changes in commodity prices and interest rates.

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Investing Cash Flows - Cash used in investing activities for the ninethree months ended September 30, 2020,March 31, 2021, decreased $666.0$794.1 million, compared with the same period in 2019,2020, due primarily to reduced capital expenditures related to our completed paused and suspendedpaused capital-growth projects.

Financing Cash Flows - Cash from financing activities for the ninethree months ended September 30, 2020,March 31, 2021, decreased $677.5 million,$1.5 billion, compared with the same period in 2019,2020, due primarily to the issuance of $3.2$1.75 billion in long-term debt in March 2020, compared with $4.2 billion long-term debt issuances in 2019, the repayment of long-term debt and short-term borrowings and increased dividends, offset partially by the issuancerepayment of common stockshort-term borrowings in Junethe first quarter 2020.

REGULATORY, ENVIRONMENTAL AND SAFETY MATTERS

Environmental Matters - We are subject to a variety of historical preservation and environmental laws and/or regulations that affect many aspects of our present and future operations. Regulated activities include, but are not limited to, those involving air emissions, storm water and wastewater discharges, handling and disposal of solid and hazardous wastes, wetlands and waterways preservation, wildlife conservation, cultural resources protection, hazardous materials transportation, and pipeline
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and facility construction. These laws and regulations require us to obtain and/or comply with a wide variety of environmental clearances, registrations, licenses, permits and other approvals. Failure to comply with these laws, regulations, licenses and permits may expose us to fines, penalties, reputational harm and/or interruptions in our operations that could be material to our results of operations or financial condition. For example, if a leak or spill of hazardous substances or petroleum products occurs from pipelines or facilities that we own, operate or otherwise use, we could be held jointly and severally liable for all resulting liabilities, including response, investigation and cleanup costs, which could affect adversely our results of operations and cash flows. In addition, emissions controls and/or other regulatory or permitting mandates under the Clean Air Act and other similar federal and state laws could require unexpected capital expenditures at our facilities. We cannot assure that existing environmental statutes and regulations will not be revised or that new regulations will not be adopted or become applicable to us. We also cannot assure that existing permits will not be revised or cancelled, potentially impacting facility construction activities or ongoing operations.

Additional information about our regulatory, environmental and safety matters can be found in “Regulatory, Environmental and Safety Matters” under Part I, Item 1, Business, in our Annual Report.

IMPACT OF NEW ACCOUNTING STANDARDS

See Note A of the Notes to Consolidated Financial Statements in this Quarterly Report for discussion of new accounting standards.

ESTIMATES AND CRITICAL ACCOUNTING POLICIES AND ESTIMATES

The preparation of our Consolidated Financial Statements and related disclosures in accordance with GAAP requires us to make estimates and assumptions with respect to values or conditions that cannot be known with certainty that affect the reported amounts of assets and liabilities, and the disclosure of contingent assets and liabilities at the date of the Consolidated Financial Statements. These estimates and assumptions also affect the reported amounts of revenue and expenses during the reporting period. Although we believe these estimates and assumptions are reasonable, actual results could differ from our estimates.

Information about our estimates and critical accounting policies and estimates is included under Item 7, Management’s Discussion and Analysis of Financial Condition and Results of Operations, “Estimates“Critical Accounting Policies and Critical Accounting Policies,Estimates,” in our Annual Report.

FORWARD-LOOKING STATEMENTS

Some of the statements contained and incorporated in this Quarterly Report are forward-looking statements as defined under federal securities laws. The forward-looking statements relate to our anticipated financial performance (including projected operating income, net income, capital expenditures, cash flows and projected levels of dividends), liquidity, management’s plans and objectives for our future capital-growth projects and other future operations (including plans to construct additional natural gas and NGL pipelines, processing and fractionation facilities and related cost estimates), our business prospects, the outcome of regulatory and legal proceedings, market conditions and other matters. We make these forward-looking statements in reliance on the safe harbor protections provided under federal securities legislation and other applicable laws. The following discussion is intended to identify important factors that could cause future outcomes to differ materially from those set forth in the forward-looking statements.

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Forward-looking statements include the items identified in the preceding paragraph, the information concerning possible or assumed future results of our operations and other statements contained or incorporated in this Quarterly Report identified by words such as “anticipate,” “believe,” “continue,” “could,” “estimate,” “expect,” “forecast,” “goal,” “guidance,” “intend,” “may,” “might,” “outlook,” “plan,” “potential,” “project,” “scheduled,” “should,” “will,” “would”“would,” and other words and terms of similar meaning.

One should not place undue reliance on forward-looking statements. Known and unknown risks, uncertainties and other factors may cause our actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by forward-looking statements. Those factors may affect our operations, markets, products, services and prices. In addition to any assumptions and other factors referred to specifically in connection with the forward-looking statements, factors that could cause our actual results to differ materially from those contemplated in any forward-looking statement include, among others, the following:
the impact on drilling and production by factors beyond our control, including the demand for natural gas and crude oil; producers’ desire and ability to drill and obtain necessary permits; regulatory compliance; reserve performance; and capacity constraints and/or shut downs on the pipelines that transport crude oil, natural gas and NGLs from producing areas and our facilities;
the effects of weather and other natural phenomena, including climate change, on our operations, demand for our services and energy prices;
the length, severity and reemergence of a pandemic or other health crisis, such as the recent outbreak of COVID-19 and the measures that international, federal, state and local governments, agencies, law enforcement and/or health authorities
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implement to address it, which may (as with COVID-19) precipitate or exacerbate one or more of the factors herein, reduce the demand for natural gas, NGLs and crude oil and significantly disrupt or prevent us and our customers and counterparties from operating in the ordinary course for an extended period and increase the cost of operating our business;
operational challenges relating to the COVID-19 pandemic and efforts to mitigate the spread of the virus, including logistical challenges, protecting the health and well-being of our employees, remote work arrangements, performance of contracts and supply chain disruption;
the timingimpact on drilling and extent of changes in energy commodity prices,production by factors beyond our control, including changes duethe demand for natural gas and crude oil; producers’ desire and ability to production decisions by other countries, such asdrill and obtain necessary permits; regulatory compliance; reserve performance; and capacity constraints and/or shut downs on the failure of countries to abide by recent agreements to reduce production volumes;
economic climatepipelines that transport crude oil, natural gas and growth in the geographicNGLs from producing areas in which we operate;and our facilities;
risks associated with adequate supply to our gathering, processing, fractionation and pipeline facilities, including production declines that outpace new drilling, the shutting-in of production by producers, actions taken by federal, state or local governments to require producers to prorate or to cut their production levels as a way to address any excess market supply situations or extended periods of ethane rejection;
demand for our services and products in the proximity of our facilities;
economic climate and growth in the geographic areas in which we operate;
the risk of a slowdown in growth or decline in the United States or international economies, including liquidity risks in United States or foreign credit markets;
performance of contractual obligations by our customers, service providers, contractors and shippers;
the effects of changes in governmental policies and regulatory actions, including changes with respect to income and other taxes, pipeline safety, environmental compliance, climate change initiatives, production limits and authorized rates of recovery of natural gas and natural gas transportation costs;
changes in demand for the use of natural gas, NGLs and crude oil because of the development of new technologies or other market conditions caused by concerns about climate change;
the effects of weather and other natural phenomena, including climate change, on our operations, demand for our services and energy prices;
acts of nature, sabotage, terrorism or other similar acts that cause damage to our facilities or our suppliers’, customers’ or shippers’ facilities;
the possibility of future terrorist attacks or the possibility or occurrence of an outbreak of, or changes in, hostilities or changes in the political conditions throughout the world;
the risk of increased costs for insurance premiums, security or other items as a consequence of terrorist attacks;
the timing and extent of changes in energy commodity prices, including changes due to production decisions by other countries, such as the failure of countries to abide by agreements to reduce production volumes;
competition from other United States and foreign energy suppliers and transporters, as well as alternative forms of energy, including, but not limited to, solar power, wind power, geothermal energy and biofuels such as ethanol and biodiesel;
demand for our services and products in the proximity of our facilities;
the ability to market pipeline capacity on favorable terms, including the effects of:
–    future demand for and prices of natural gas, NGLs and crude oil;
–    competitive conditions in the overall energy market;
–    availability of supplies of United States natural gas and crude oil; and
–    availability of additional storage capacity;
actsthe efficiency of nature, sabotage, terrorism or other similar acts that cause damage to our facilities or our suppliers’, customers’ or shippers’ facilities;plants in processing natural gas and extracting and fractionating NGLs;
the possibilitycomposition and quality of future terrorist attacks or the possibility or occurrence of an outbreak of, or changesnatural gas and NGLs we gather and process in hostilities or changes in the political conditions throughout the world;
the timely receipt of approval by applicable governmental entities for constructionour plants and operation oftransport on our pipeline and other projects and required regulatory clearances;
our ability to acquire all necessary permits, consents or other approvals in a timely manner, to promptly obtain all necessary materials and supplies required for construction, and to construct gathering, processing, storage, fractionation and transportation facilities without labor or contractor problems;
the profitability of assets or businesses acquired or constructed by us;
the risk of a slowdown in growth or decline in the United States or international economies, including liquidity risks in United States or foreign credit markets;pipelines;
risks of marketing, trading and hedging activities, including the risks of changes in energy prices or the financial condition of our counterparties;
the uncertainty of estimates, including accrualsour ability to control operating costs and costs of environmental remediation;
changes in demand for the use of natural gas, NGLs and crude oil because of market conditions caused by concerns about climate change;make cost-saving changes;
the impactrisk inherent in the use of uncontracted capacityinformation systems in our assets being greater or less than expected;
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our counterparties and service providers, including cyber-attacks, which, according to experts, have increased in volume and sophistication since the composition and qualitybeginning of the natural gasCOVID-19 pandemic; implementation of new software and NGLs we gatherhardware; and process in our plants and transportthe impact on our pipelines;the timeliness of information for financial reporting;
the efficiencytimely receipt of approval by applicable governmental entities for construction and operation of our plants in processing natural gas and extracting and fractionating NGLs;
our ability to control construction costs and completion schedules of our pipelinespipeline and other projects;
the effects of changes in governmental policiesprojects and required regulatory actions, including changes with respect to income and other taxes, pipeline safety, environmental compliance, climate change initiatives, production limits and authorized rates of recovery of natural gas and natural gas transportation costs;clearances;
the ability to recover operating costs and amounts equivalent to income taxes, costs of property, plant and equipment and regulatory assets in our state and FERC-regulated rates;
the results of administrative proceedings and litigation, regulatory actions, executive orders, rule changes and receipt of expected clearances involving any local, state or federal regulatory body, including the FERC, the National Transportation Safety Board, the PHMSA, the EPA and the CFTC;
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the mechanical integrity of facilities and pipelines operated;
the capital-intensive nature of our businesses;
the impact of unforeseen changes in interest rates, debt and equity markets, inflation rates, economic recession and other external factors over which we have no control, including the effect on pension and postretirement expense and funding resulting from changes in equity and bond market returns;
actions by rating agencies concerning our credit;
our indebtedness and guarantee obligations could make us vulnerable to general adverse economic and industry conditions, limit our ability to borrow additional funds and/or place us at competitive disadvantages compared with our competitors that have less debt or have other adverse consequences;
our ability to access capital at competitive rates or on terms acceptable to us;
our ability to acquire all necessary permits, consents or other approvals in a timely manner, to promptly obtain all necessary materials and supplies required for construction, and to construct gathering, processing, storage, fractionation and transportation facilities without labor or contractor problems;
our ability to control construction costs and completion schedules of our pipelines and other projects;
difficulties or delays experienced by trucks, railroads or pipelines in delivering products to or from our terminals or pipelines;
the capital-intensive natureuncertainty of our businesses;estimates, including accruals and costs of environmental remediation;
the mechanical integrityimpact of facilities operated;uncontracted capacity in our assets being greater or less than expected;
the impact of potential impairment charges;
the profitability of assets or businesses acquired or constructed by us;
risks associated with pending or possible acquisitions and dispositions, including our ability to finance or integrate any such acquisitions and any regulatory delay or conditions imposed by regulatory bodies in connection with any such acquisitions and dispositions;
the risk that material weaknesses or significant deficiencies in our internal controls over financial reporting could emerge or that minor problems could become significant;
the impact of unforeseen changes in interest rates, debt and equity markets, inflation rates, economic recession and other external factors over which we have no control, including the effect on pension and postretirement expense and funding resulting from changes in equity and bond market returns;
our indebtedness and guarantee obligations could make us vulnerable to general adverse economic and industry conditions, limit our ability to borrow additional funds and/or place us at competitive disadvantages compared with our competitors that have less debt or have other adverse consequences;
actions by rating agencies concerning our credit;
our ability to access capital at competitive rates or on terms acceptable to us;
the impact and outcome of pending and future litigation;
performance of contractual obligations by our customers, service providers, contractors and shippers;
our ability to control operating costs and make cost-saving changes;
the impact of recently issued and future accounting updates and other changes in accounting policies;
the risk of increased costs for insurance premiums, security or other items as a consequence of terrorist attacks;
the risk inherent in the use of information systems in our respective businesses and those of our counterparties and service providers, including cyber-attacks, which, according to experts, have increased in volume and sophistication since the beginning of the COVID-19 pandemic; implementation of new software and hardware; and the impact on the timeliness of information for financial reporting;
operational challenges relating to the COVID-19 pandemic and efforts to mitigate the spread of the virus, including logistical challenges, protecting the health and well-being of our employees, remote work arrangements, performance of contracts and supply chain disruptions;
the impact of potential impairment charges; and
the risk factors listed in the reports we have filed and may file with the SEC, which are incorporated by reference.

These factors are not necessarily all of the important factors that could cause actual results to differ materially from those expressed in any of our forward-looking statements. Other factors could also affect adversely our future results. These and other risks are described in greater detail in Part I, Item 1A, Risk Factors, in our Annual Report and in our other filings that we make with the SEC, which are available via the SEC’s website at www.sec.gov and our website at www.oneok.com. All forward-looking statements attributable to us or persons acting on our behalf are expressly qualified in their entirety by these factors. Any such forward-looking statement speaks only as of the date on which such statement is made, and other than as required under securities laws, we undertake no obligation to update publicly any forward-looking statement whether as a result of new information, subsequent events or change in circumstances, expectations or otherwise.

ITEM 3.QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Our exposure to market risk discussed below includes forward-looking statements and represents an estimate of possible changes in future earnings that could occur assuming hypothetical future movements in interest rates or commodity prices. Our views on market risk are not necessarily indicative of actual results that may occur and do not represent the maximum possible
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gains and losses that may occur since actual gains and losses will differ from those estimated based on actual fluctuations in interest rates or commodity prices and the timing of transactions.

We are exposed to market risk due to commodity price and interest-rate volatility. Market risk is the risk of loss arising from adverse changes in market rates and prices. We may use financial instruments, including forward sales, swaps, options and futures, to manage the risks of certain identifiable or anticipated transactions and achieve more predictable cash flows. Our risk-management function follows established policies and procedures established by our Risk Oversight and Strategy Committee to monitor our natural gas, condensate and NGL marketing activities and interest rates to ensure our hedging activities mitigate market risks.risks and comply with approved thresholds or limits. We do not use financial instruments for trading purposes.

We utilize a sensitivity analysis model to assess the risk associated with our derivative portfolio. The sensitivity analysis measures the potential change in fair value of our derivative instruments based upon a hypothetical 10% movement in the underlying commodity prices or interest rates. In addition to these variables, the fair value of our derivative portfolio is influenced by fluctuations in the notional amounts of the instruments and the discount rates used to determine the present values. Because we enter into these derivative instruments for the purpose of mitigating the risks that accompany certain of our
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business activities, as described below, the change in the market value of our derivative portfolio would typically be offset largely by a corresponding gain or loss on the hedged item.

COMMODITY PRICE RISK

As part of our hedging strategy, we use commodity derivative financial instruments and physical-forward contracts described in Note C of the Notes to Consolidated Financial Statements in this Quarterly Report to reduce the impact of near-term price fluctuations of natural gas, NGLs and condensate.

Although our businesses are primarily fee-based, in our Natural Gas Gathering and Processing segment, we are exposed to commodity price risk as a result of retaining a portion of the commodity sales proceeds associated with our POPfee with feePOP contracts. Under certain POPfee with feePOP contracts, our contractual fees and POP percentage may increase or decrease if production volumes, delivery pressures or commodity prices change relative to specified thresholds. We are exposed to basis risk between the various production and market locations where we buy and sell commodities.

The following table presents the effect a hypothetical 10% change in the underlying commodity prices would have on the estimated fair value of our commodity derivative instruments for the periods indicated:
Commodity ContractsMarch 31,
2021
December 31,
2020
 
(Millions of dollars)
Crude oil and NGLs$44.3 $20.0 
Natural gas20.9 10.6 
Total change in estimated fair value of commodity contracts$65.2 $30.6 

Our sensitivity analysis represents an estimate of the reasonably possible gains and losses that would be recognized on our commodity derivative contracts assuming hypothetical movements in future market prices and is not necessarily indicative of actual results that may occur. Actual gains and losses may differ from estimates due to actual fluctuations in market prices, as well as changes in our commodity derivative portfolio during the year.

The following tables set forth hedging information for our Natural Gas Gathering and Processing segment’s forecasted equity volumes for the periods indicated:
Three Months Ending December 31, 2020 Nine Months Ending December 31, 2021
Volumes
Hedged
Average PricePercentage
Hedged
Volumes
Hedged
Average PricePercentage
Hedged
NGLs - excluding ethane (MBbl/d) - Conway/Mont Belvieu
NGLs - excluding ethane (MBbl/d) - Conway/Mont Belvieu
9.5 $0.55 / gallon70%
NGLs - excluding ethane (MBbl/d) - Conway/Mont Belvieu
10.3 $0.51 / gallon59%
Condensate (MBbl/d) - WTI-NYMEX
Condensate (MBbl/d) - WTI-NYMEX
2.2 $53.67 / Bbl92%
Condensate (MBbl/d) - WTI-NYMEX
2.8 $42.87 / Bbl78%
Natural gas (BBtu/d) - NYMEX and basis
Natural gas (BBtu/d) - NYMEX and basis
108.3 $2.36 / MMBtu89%
Natural gas (BBtu/d) - NYMEX and basis
118.7 $2.57 / MMBtu75%
Year Ending December 31, 2021Year Ending December 31, 2022
Volumes
Hedged
Average PricePercentage
Hedged
Volumes
Hedged
Average PricePercentage
Hedged
NGLs - excluding ethane (MBbl/d) - Conway/Mont Belvieu
NGLs - excluding ethane (MBbl/d) - Conway/Mont Belvieu
5.1 $0.48 / gallon29%
NGLs - excluding ethane (MBbl/d) - Conway/Mont Belvieu
4.0 $0.67 / gallon21%
Condensate (MBbl/d) - WTI-NYMEX
Condensate (MBbl/d) - WTI-NYMEX
0.7 $44.55 / Bbl19%
Condensate (MBbl/d) - WTI-NYMEX
1.0 $57.15 / Bbl24%
Natural gas (BBtu/d) - NYMEX and basis
Natural gas (BBtu/d) - NYMEX and basis
84.8 $2.55 / MMBtu54%
Natural gas (BBtu/d) - NYMEX and basis
42.0 $2.60 / MMBtu24%

Our Natural Gas Gathering and Processing segment’s commodity price sensitivity is estimated as a hypothetical change in the price of NGLs, crude oil and natural gas at September 30, 2020.March 31, 2021. Condensate sales are typically based on the price of crude oil. Assuming normal operating conditions, we estimate the following for our forecasted equity volumes:
a $0.01 per-gallon change in the composite price of NGLs, excluding ethane, would change adjusted EBITDA for the threenine months ending December 31, 2020,2021, and for the year ending December 31, 2021,2022, by approximately $0.5$2.0 million and $2.7$3.0 million, respectively;
a $1.00 per-barrel change in the price of crude oil would change adjusted EBITDA for the threenine months ending December 31, 2020,2021, and for the year ending December 31, 2021,2022, by approximately $0.2$1.0 million and $1.4$1.5 million, respectively; and
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a $0.10 per-MMBtu change in the price of residue natural gas would change adjusted EBITDA for the threenine months ending December 31, 2020,2021, and for the year ending December 31, 2021,2022, by approximately $1.1$4.4 million and $5.8$6.4 million, respectively.

These estimates do not include any effects of hedging or effects on demand for our services or natural gas processing plant operations that might be caused by, or arise in conjunction with, commodity price fluctuations. For example, a change in the gross processing spread may cause a change in the amount of ethane extracted from the natural gas stream, impacting gathering and processing financial results for certain contracts.

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INTEREST-RATE RISK

We are exposed to interest-rate risk through borrowings under our $2.5 Billion Credit Agreement, commercial paper program and long-term debt issuances. Future increases in commercial paper rates or bond rates could expose us to increased interest costs on future borrowings. We manage interest-rate risk through the use of fixed-rate debt, floating-rate debt and interest-rate swaps. Interest-rate swaps are agreements to exchange interest payments at some future point based on specified notional amounts. In March 2020, we settled $750 million of our forward-starting interest-rate swaps related to our underwritten public offerings of $1.75 billion senior unsecured notes. In May 2020, we settled the remaining $1.3 billion of our interest-rate swaps used to hedge our LIBOR-based interest payments.

At September 30, 2020,March 31, 2021, and December 31, 2019,2020, we had forward-starting interest-rate swaps with notional amounts totaling $1.1 billion and $1.8 billion, respectively, to hedge the variability of interest payments on a portion of our forecasted debt issuances. At December 31, 2019, we had interest-rate swaps with notional amounts totaling $1.3 billion to hedge the variability of our LIBOR-based interest payments, all of which have settled as of September 30, 2020. All of our interest-rate swaps are designated as cash flow hedges.

The following table presents the effect of a 10% hypothetical change in interest rates on the estimated fair value of our interest- rate derivative instruments for the periods indicated:
March 31,
2021
December 31,
2020
 
(Millions of dollars)
Forward-starting interest-rate swaps$22.6 $12.9 

Our sensitivity analysis represents an estimate of the reasonably possible gains and losses that would be recognized on our interest-rate derivative contracts assuming hypothetical movements in future interest rates and is not necessarily indicative of actual results that may occur. Actual gains and losses may differ from estimates due to actual fluctuations in interest rates, as well as changes in our interest-rate derivative portfolio during the year.

See Note C of the Notes to Consolidated Financial Statements in this Quarterly Report for more information on our hedging activities.

COUNTERPARTY CREDIT RISK

We assess the creditworthiness of our counterparties on an ongoing basis and require security, including prepayments and other forms of collateral, when appropriate. Certain of our counterparties may be impacted by a relatively low commodity price environment and could experience financial problems, which could result in nonpayment and/or nonperformance, which could impact adversely our results of operations.

The creditworthiness of our counterparties, which are primarily investment grade, and our customer concentration areis consistent with thosethat discussed in Part II, Item 7A, Quantitative and Qualitative Disclosures about Market Risk, in our Annual Report.

ITEM 4.CONTROLS AND PROCEDURES

Quarterly Evaluation of Disclosure Controls and Procedures - Our Chief Executive Officer (Principal Executive Officer) and Chief Financial Officer (Principal Financial Officer) have concluded that our disclosure controls and procedures were effective as of the end of the period covered by this report based on the evaluation of the controls and procedures required by Rules 13a-15(e)13a-15(b) and 15d-15(e)15d-15(b) of the Exchange Act.

Changes in Internal Control Over Financial Reporting - There have been no changes in our internal control over financial reporting during the quarter ended September 30, 2020,March 31, 2021, that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

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PART II - OTHER INFORMATION

ITEM 1.LEGAL PROCEEDINGS

Additional information about our legal proceedings is included in Note J of the Notes to Consolidated Financial Statements in this Quarterly Report and under Note N of the Notes to Consolidated Financial Statements in our Annual Report.

ITEM 1A.RISK FACTORS

The COVID-19 pandemic and recent energy industry developments have affected adversely, and could continue to affect adversely, our results of operations.

The COVID-19 pandemic has led to global and regional economic disruption, volatility in the financial markets and a weakened commodity price environment. The outbreak and government measures taken in response, including extended quarantines, closures and reduced operations of businesses have also had a significant adverse impact, both direct and indirect, on our business and the economy. Due to reductions in economic activity, the world is experiencing reduced demand for refined products, NGLs and natural gas, and weakened commodity prices, which has affected adversely our operations. Continuing uncertainty regarding the global impact of the COVID-19 impact is likely to result in reduced demand for the services we provide. We may also experience disruptions to supply chains and the availability and efficiency of our workforce as a result of
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the pandemic, which could affect adversely our ability to conduct our business and operations. Moreover, the uncertainty regarding the duration and long-term impact of the COVID-19 pandemic could further impact our access to capital markets. The spread of COVID-19 may also cause other unpredictable or unforeseen events that may affect adversely our results of operations.

Volatility in commodity prices may continue to have an impact on many of our counterparties, which, in turn, could have a negative impact on their ability to meet their obligations to us. For example, in March 2020, unsuccessful negotiations between the Organization of the Petroleum Exporting Countries (OPEC) and Russia regarding crude oil production cuts resulted in a price war between Saudi Arabia and Russia. As a result, the global supply of crude oil significantly exceeded demand and led to a collapse in crude oil prices. However, further negotiations in April 2020 resulted in an agreement to reduce production volumes. Failure to abide by these agreed-upon crude oil production cuts may further destabilize the global oil market, which is simultaneously experiencing a limitation on crude oil storage capacity and a dramatic decrease in demand due to COVID-19, and crude oil prices may continue to decline. Recently, OPEC and Russia agreed to an ease in crude oil production cuts, and these increased volumes could further negatively impact our counterparties. If adverse global or regional economic and market conditions remain uncertain or persist, spread or deteriorate further, we may continue to experience an adverse impact on our business, results of operations, financial position, cash flows and/or liquidity.

Our investors should consider additionalthe risks set forth in Part I, Item 1A, Risk Factors, of our Annual Report that could affect us and our business. Additionally, the impact of the COVID-19 pandemic could exacerbate many of the risks identified in our Annual Report. Although we have tried to discuss key factors, our investors need to be aware that other risks may prove to be important in the future. Even after the COVID-19 pandemic has moderated and business and social distancing restrictions have eased, we may continue to experience similar adverse effects to our businesses, operating results, cash flows and/or financial condition resulting from economic slowdown that is expected to persist. New risks may emerge at any time, and we cannot predict such risks or estimate the extent to which they may affect our financial performance. Investors should consider carefully the discussion of risks and the other information included or incorporated by reference in this Quarterly Report, including “Forward-Looking Statements,” which are included in Part I, Item 2, Management’s Discussion and Analysis of Financial Condition and Results of Operations.

ITEM 2.UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

Not applicable.

ITEM 3.DEFAULTS UPON SENIOR SECURITIES

Not applicable.

ITEM 4.MINE SAFETY DISCLOSURES

Not applicable.

ITEM 5.OTHER INFORMATION

Not applicable.

ITEM 6.EXHIBITS

Readers of this report should not rely on or assume the accuracy of any representation or warranty or the validity of any opinion contained in any agreement filed as an exhibit to this Quarterly Report, because such representation, warranty or opinion may be subject to exceptions and qualifications contained in separate disclosure schedules, may represent an allocation of risk between parties in the particular transaction, may be qualified by materiality standards that differ from what may be viewed as material for securities law purposes, or may no longer continue to be true as of any given date. All exhibits attached to this Quarterly Report are included for the purpose of complying with requirements of the SEC. Other than the certifications made by our officers pursuant to the Sarbanes-Oxley Act of 2002 included as exhibits to this Quarterly Report, all exhibits are included only to provide information to investors regarding their respective terms and should not be relied upon as constituting
or providing any factual disclosures about us, any other persons, any state of affairs or other matters.



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The following exhibits are filed as part of this Quarterly Report:
Exhibit No.Exhibit Description
3.1
3.2
10.1
Equity DistributionForm of 2021 Restricted Unit Award Agreement dated July 23, 2020, among ONEOK, Inc., and Credit Suisse Securities (USA) LLC, BofA Securities, Inc., Goldman Sachs & Co. LLC, Mizuho Securities USA LLC, Morgan Stanley & Co. LLC, RBC Capital Markets, LLC, Scotia Capital (USA) Inc., SMBC Nikko Securities America, Inc., SunTrust Robinson Humphrey, Inc. and TD Securities (USA) LLC as sales agents, principals and/or forward sellers, and Credit Suisse Capital LLC, Bank of America, N.A., Goldman Sachs & Co. LLC, Mizuho Markets Americas LLC, Morgan Stanley & Co. LLC, Royal Bank of Canada, The Bank of Nova Scotia and The Toronto-Dominion Bank as forward purchasers (incorporated by reference from Exhibit 1.110.33 to ONEOK, Inc.’s CurrentAnnual Report on Form 8-K with a filing date of July 24, 202010-K, filed February 23, 2021 (File No. 1-13643)).
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10.2
22.1
31.1
31.2
32.1
32.2
101.INSInline 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.SCHInline XBRL Taxonomy Extension Schema Document.
101.CALInline XBRL Taxonomy Calculation Linkbase Document.
101.DEFInline XBRL Taxonomy Extension Definitions Document.
101.LABInline XBRL Taxonomy Label Linkbase Document.
101.PREInline XBRL Taxonomy Presentation Linkbase Document.
104Cover Page Interactive Data File (formatted in(embedded within the Inline XBRL document and contained in Exhibit 101).

Attached as Exhibit 101 to this Quarterly Report are the following Inline XBRL-related documents: (i) Document and Entity Information; (ii) Consolidated Statements of Income for the three and nine months ended September 30, 2020March 31, 2021 and 2019;2020; (iii) Consolidated Statements of Comprehensive Income for the three and nine months ended September 30, 2020March 31, 2021 and 2019;2020; (iv) Consolidated Balance Sheets at September 30, 2020,March 31, 2021, and December 31, 2019;2020; (v) Consolidated Statements of Cash Flows for the ninethree months ended September 30, 2020March 31, 2021 and 2019;2020; (vi) Consolidated Statements of Changes in Equity for the three and nine months ended September 30, 2020March 31, 2021 and 2019;2020; and (vii) Notes to Consolidated Financial Statements.
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SIGNATURE

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

 ONEOK, Inc.
 Registrant
  
Date: OctoberApril 28, 20202021By:/s/ Walter S. Hulse III
 Walter S. Hulse III
 Chief Financial Officer, Treasurer and
 Executive Vice President, Strategic PlanningStrategy
and Corporate Affairs
 (Principal Financial Officer)
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