10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 10-Q

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

For the quarterly period ended June 30, 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 001-38735

ALPHA METALLURGICAL RESOURCES, INC.

(Exact name of registrant as specified in its charter)

Delaware	81-3015061
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification Number)
340 Martin Luther King Jr. Blvd.
Bristol, Tennessee 37620
(Address of principal executive offices, zip code)
(423) 573-0300
(Registrant’s telephone number, including area code)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. x 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 (Sec.232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). x Yes   ¨ No

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer	¨	Accelerated filer	☐
Non-accelerated filer	x	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   x No

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock	AMR	New York Stock Exchange

Number of shares of the registrant’s Common Stock, $0.01 par value, outstanding as of July 31, 2021: 18,400,317

	TABLE OF CONTENTS
	Cautionary Note Regarding Forward Looking Statements	4
	Part I - Financial Information
Item 1.	Financial Statements
	Condensed Consolidated Statements of Operations for the Three and Six Months Ended June 30, 2021 and June 30, 2020 (Unaudited)	6
	Condensed Consolidated Statements of Comprehensive Loss for the Three and Six Months Ended June 30, 2021 and June 30, 2020 (Unaudited)	8
	Condensed Consolidated Balance Sheets as of June 30, 2021 and December 31, 2020 (Unaudited)	9
	Condensed Consolidated Statements of Cash Flows for the Six Months Ended June 30, 2021 and June 30, 2020 (Unaudited)	11
	Condensed Consolidated Statements of Stockholders’ Equity for the Three and Six Months Ended June 30, 2021 and June 30, 2020 (Unaudited)	13
	Notes to Condensed Consolidated Financial Statements (Unaudited)	14
	(1) Business and Basis of Presentation	14
	(2) Discontinued Operations	15
	(3) Revenue	17
	(4) Accumulated Other Comprehensive Loss	17
	(5) Net Loss Per Share	18
	(6) Inventories, net	19
	(7) Acquired Intangibles	19
	(8) Asset Impairment and Restructuring	20
	(9) Long-Term Debt	22
	(10) Acquisition-Related Obligations	23
	(11) Asset Retirement Obligations	23
	(12) Fair Value of Financial Instruments and Fair Value Measurements	23
	(13) Income Taxes	26
	(14) Employee Benefit Plans	26
	(15) Related Party Transactions	27
	(16) Commitments and Contingencies	27
	(17) Segment Information	30
	Glossary	35
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	37
	Results of Operations	39
	Liquidity and Capital Resources	56
	Contractual Obligations	59
	Critical Accounting Policies and Estimates	59
Item 3.	Quantitative and Qualitative Disclosures about Market Risk	60
Item 4.	Controls and Procedures	60
	Part II - Other Information
Item 1.	Legal Proceedings	60
Item 1A.	Risk Factors	60
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	61
Item 4.	Mine Safety Disclosures	61
Item 6.	Exhibits	61

3

CAUTIONARY NOTE REGARDING FORWARD LOOKING STATEMENTS

This report includes statements of our expectations, intentions, plans and beliefs that constitute “forward-looking statements.” These statements, which involve risks and uncertainties, relate to analyses and other information that are based on forecasts of future results and estimates of amounts not yet determinable and may also relate to our future prospects, developments and business strategies. We have used the words “anticipate,” “believe,” “could,” “estimate,” “expect,” “intend,” “may,” “plan,” “predict,” “project,” “should” and similar terms and phrases, including references to assumptions, in this report to identify forward-looking statements but these terms and phrases are not the exclusive means of identifying such statements. These forward-looking statements are made based on expectations and beliefs concerning future events affecting us and are subject to uncertainties and factors relating to our operations and business environment, all of which are difficult to predict and many of which are beyond our control, that could cause our actual results to differ materially from those matters expressed in or implied by these forward-looking statements.

The following factors are among those that may cause actual results to differ materially from our forward-looking statements:

•the effects of the COVID-19 pandemic on our operations and the world economy;

•the financial performance of the company;

•our liquidity, results of operations and financial condition;

•our ability to generate sufficient cash or obtain financing to fund our business operations;

•depressed levels or declines in coal prices;

•worldwide market demand for coal, steel, and electricity, including demand for U.S. coal exports, and competition in coal markets;

•our ability to obtain financing and other services, and the form and degree of these services available to us, which may be significantly limited by the lending, investment and similar policies of financial institutions and insurance companies regarding carbon energy producers and the environmental impacts of coal combustion;

•our ability to meet collateral requirements;

•the imposition or continuation of barriers to trade, such as tariffs;

•reductions or increases in customer coal inventories and the timing of those changes;

•our production capabilities and costs;

•inherent risks of coal mining beyond our control;

•changes in, interpretations of, or implementations of domestic or international tax or other laws and regulations, including the Tax Cuts and Jobs Act and its related regulations;

•changes in domestic or international environmental laws and regulations, and court decisions, including those directly affecting our coal mining and production, and those affecting our customers’ coal usage, including potential climate change initiatives;

•our ability to self-insure certain of our black lung obligations without a significant increase in required collateral;

•our relationships with, and other conditions affecting, our customers, including the inability to collect payments from our customers if their creditworthiness declines;

•changes in, renewal or acquisition of, terms of and performance of customers under coal supply arrangements and the refusal by our customers to receive coal under agreed-upon contract terms;

•our ability to obtain, maintain or renew any necessary permits or rights, and our ability to mine properties due to defects in title on leasehold interests;

•attracting and retaining key personnel and other employee workforce factors, such as labor relations;

•funding for and changes in employee benefit obligations;

•cybersecurity attacks or failures, threats to physical security, extreme weather conditions or other natural disasters;

•reclamation and mine closure obligations;

•utilities switching to alternative energy sources such as natural gas, renewables and coal from basins where we do not operate;

•our assumptions concerning economically recoverable coal reserve estimates;

•disruptions in delivery or changes in pricing from third-party vendors of key equipment and materials that are necessary for our operations, such as diesel fuel, steel products, explosives, tires and purchased coal;

•failures in performance, or non-performance, of services by third-party contractors, including contract mining and reclamation contractors;

•inflationary pressures on supplies and labor and significant or rapid increases in commodity prices;

•railroad, barge, truck and other transportation availability, performance and costs;

•disruption in third-party coal supplies;

•the consummation of financing or refinancing transactions, acquisitions or dispositions and the related effects on our business and financial position;

4

•our indebtedness and potential future indebtedness;

•our ability to obtain or renew surety bonds on acceptable terms or maintain our current bonding status; and

•other factors, including the other factors discussed in the “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and “Risk Factors” sections of this Report and the “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and “Risk Factors” sections of our Annual Report on Form 10-K for the year ended December 31, 2020.

The factors identified above are not exhaustive. We caution readers not to place undue reliance on any forward-looking statements, which are based only on information currently available to us and speak only as of the dates on which they are made. When considering these forward-looking statements, you should keep in mind the cautionary statements in this report. We do not undertake any responsibility to publicly revise these forward-looking statements to take into account events or circumstances that occur after the date of this report. Additionally, we do not undertake any responsibility to update you on the occurrence of any unanticipated events, which may cause actual results to differ from those expressed or implied by the forward-looking statements contained in this report.

5

Part I - Financial Information

Item 1. Financial Statements

ALPHA METALLURGICAL RESOURCES, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited)

(Amounts in thousands, except share and per share data)

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Revenues:
Coal revenues	$	393,458	$	353,115	$	778,910	$	754,575
Other revenues	1,817		825		2,618		2,169
Total revenues	395,275		353,940		781,528		756,744
Costs and expenses:
Cost of coal sales (exclusive of items shown separately below)	346,763		335,267		694,191		669,487
Depreciation, depletion and amortization	27,304		47,069		55,742		94,685
Accretion on asset retirement obligations	6,648		6,569		13,296		13,208
Amortization of acquired intangibles, net	2,553		1,881		6,422		2,392
Asset impairment and restructuring	—		20,498		(561)		54,207
Selling, general and administrative expenses (exclusive of depreciation, depletion and amortization shown separately above)	14,645		12,028		29,627		27,509
Total other operating (income) loss:
Mark-to-market adjustment for acquisition-related obligations	3,157		(2,052)		6,333		(17,049)
Other income	(3,608)		(45)		(4,833)		(713)
Total costs and expenses	397,462		421,215		800,217		843,726
Loss from operations	(2,187)		(67,275)		(18,689)		(86,982)
Other (expense) income:
Interest expense	(17,962)		(19,316)		(35,952)		(37,492)
Interest income	104		5,530		268		6,498
Equity loss in affiliates	(384)		(1,047)		(518)		(1,790)
Miscellaneous income (loss), net	1,847		395		3,613		(321)
Total other expense, net	(16,395)		(14,438)		(32,589)		(33,105)
Loss from continuing operations before income taxes	(18,582)		(81,713)		(51,278)		(120,087)
Income tax (expense) benefit	(8)		(33)		(3)		2,155
Net loss from continuing operations	(18,590)		(81,746)		(51,281)		(117,932)
Discontinued operations:
Loss from discontinued operations before income taxes	(401)		(156,555)		(638)		(160,177)
Loss from discontinued operations	(401)		(156,555)		(638)		(160,177)
Net loss	$	(18,991)	$	(238,301)	$	(51,919)	$	(278,109)
Basic and diluted loss per common share:
Loss from continuing operations	$	(1.01)	$	(4.47)	$	(2.78)	$	(6.45)
Loss from discontinued operations	(0.02)		(8.55)		(0.04)		(8.77)
Net loss	$	(1.03)	$	(13.02)	$	(2.82)	$	(15.22)

6

Weighted average shares – basic and diluted 18,438,699  18,304,853  18,416,946  18,275,382 

Refer to accompanying Notes to Condensed Consolidated Financial Statements.

7

ALPHA METALLURGICAL RESOURCES, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (Unaudited)

(Amounts in thousands)

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Net loss	$	(18,991)	$	(238,301)	$	(51,919)	$	(278,109)
Other comprehensive income (loss), net of tax:
Employee benefit plans:
Amortization of and adjustments to employee benefit costs	$	10,180	$	(7,121)	$	11,664	$	(11,131)
Income tax expense	—		—		—		—
Total other comprehensive income (loss), net of tax	$	10,180	$	(7,121)	$	11,664	$	(11,131)
Total comprehensive loss	$	(8,811)	$	(245,422)	$	(40,255)	$	(289,240)

Refer to accompanying Notes to Condensed Consolidated Financial Statements.

8

ALPHA METALLURGICAL RESOURCES, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited)

(Amounts in thousands, except share and per share data)

	June 30, 2021		December 31, 2020
Assets
Current assets:
Cash and cash equivalents	$	72,337	$	139,227
Trade accounts receivable, net of allowance for doubtful accounts of $175 and $293 as of June 30, 2021 and December 31, 2020	206,693		145,670
Inventories, net	144,416		108,051
Prepaid expenses and other current assets	108,515		106,252
Current assets - discontinued operations	2,157		10,935
Total current assets	534,118		510,135
Property, plant, and equipment, net of accumulated depreciation and amortization of $418,677 and $382,423 as of June 30, 2021 and December 31, 2020	357,152		363,620
Owned and leased mineral rights, net of accumulated depletion and amortization of $45,505 and $35,143 as of June 30, 2021 and December 31, 2020	452,887		463,250
Other acquired intangibles, net of accumulated amortization of $32,286 and $25,700 as of June 30, 2021 and December 31, 2020	81,610		88,196
Long-term restricted cash	92,758		96,033
Other non-current assets	134,781		149,382
Non-current assets - discontinued operations	9,477		9,473
Total assets	$	1,662,783	$	1,680,089
Liabilities and Stockholders’ Equity
Current liabilities:
Current portion of long-term debt	$	29,404	$	28,830
Trade accounts payable	97,938		58,413
Acquisition-related obligations – current	22,866		19,099
Accrued expenses and other current liabilities	154,067		140,406
Current liabilities - discontinued operations	7,101		12,306
Total current liabilities	311,376		259,054
Long-term debt	550,263		553,697
Acquisition-related obligations - long-term	11,972		20,768
Workers’ compensation and black lung obligations	231,029		230,081
Pension obligations	198,549		218,671
Asset retirement obligations	140,840		140,074
Deferred income taxes	483		480
Other non-current liabilities	28,444		28,072
Non-current liabilities - discontinued operations	27,496		29,090
Total liabilities	1,500,452		1,479,987
Commitments and Contingencies (Note 16)
Stockholders’ Equity
Preferred stock - par value $0.01, 5.0 million shares authorized, none issued	—		—
Common stock - par value $0.01, 50.0 million shares authorized, 20.8 million issued and 18.4 million outstanding at June 30, 2021 and 20.6 million issued and 18.3 million outstanding at December 31, 2020	208		206
Additional paid-in capital	782,586		779,424
Accumulated other comprehensive loss	(100,321)		(111,985)
Treasury stock, at cost: 2.4 million shares at June 30, 2021 and 2.3 million shares at December 31, 2020	(107,694)		(107,014)

9

Accumulated deficit	(412,448)		(360,529)
Total stockholders’ equity	162,331		200,102
Total liabilities and stockholders’ equity	$	1,662,783	$	1,680,089

Refer to accompanying Notes to Condensed Consolidated Financial Statements.

10

ALPHA METALLURGICAL RESOURCES, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)

(Amounts in thousands)

	Six Months Ended June 30,
	2021		2020
Operating activities:
Net loss	$	(51,919)	$	(278,109)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation, depletion and amortization	55,742		103,727
Amortization of acquired intangibles, net	6,422		2,961
Accretion of acquisition-related obligations discount	723		2,227
Amortization of debt issuance costs and accretion of debt discount	6,480		7,389
Mark-to-market adjustment for acquisition-related obligations	6,333		(17,049)
Gain on disposal of assets	(4,878)		(755)
Asset impairment and restructuring	(561)		217,882
Accretion on asset retirement obligations	13,296		14,679
Employee benefit plans, net	5,744		10,605
Deferred income taxes	3		33,032
Stock-based compensation	3,162		3,121
Equity loss in affiliates	518		1,790
Other, net	(220)		92
Changes in operating assets and liabilities	(66,296)		(22,654)
Net cash (used in) provided by operating activities	(25,451)		78,938
Investing activities:
Capital expenditures	(38,039)		(91,090)
Proceeds on disposal of assets	6,801		1,285
Purchases of investment securities	(15,470)		(18,607)
Maturity of investment securities	7,766		10,653
Capital contributions to equity affiliates	(1,895)		(2,416)
Other, net	35		47
Net cash used in investing activities	(40,802)		(100,128)
Financing activities:
Proceeds from borrowings on debt	—		57,500
Principal repayments of debt	(6,159)		(29,559)
Principal repayments of notes payable	(1,362)		(574)
Principal repayments of financing lease obligations	(1,002)		(1,614)
Debt issuance costs	(226)		—
Common stock repurchases and related expenses	(680)		(155)
Net cash (used in) provided by financing activities	(9,429)		25,598
Net (decrease) increase in cash and cash equivalents and restricted cash	(75,682)		4,408
Cash and cash equivalents and restricted cash at beginning of period	244,571		347,680
Cash and cash equivalents and restricted cash at end of period	$	168,889	$	352,088

The following table provides a reconciliation of cash and cash equivalents and restricted cash reported within the Condensed Consolidated Balance Sheets that sum to the total of the same such amounts shown in the Condensed Consolidated Statements of Cash Flows.

11

	As of June 30,
	2021		2020
Cash and cash equivalents	$	72,337	$	238,438
Short-term restricted cash (included in prepaid expenses and other current assets)	3,794		3,720
Long-term restricted cash	92,758		109,930
Total cash and cash equivalents and restricted cash shown in the Condensed Consolidated Statements of Cash Flows	$	168,889	$	352,088

Refer to accompanying Notes to Condensed Consolidated Financial Statements.

12

ALPHA METALLURGICAL RESOURCES, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Unaudited)

(Amounts in thousands)

	Common Stock		Additional Paid-in Capital		Accumulated Other Comprehensive Loss		Treasury Stock at Cost		Retained Earnings (Deficit)		Total Stockholders’ Equity
Balances, December 31, 2019	$	205	$	775,707	$	(58,616)	$	(107,984)	$	86,810	$	696,122
Net loss	—		—		—		—		(39,808)		(39,808)
Credit losses cumulative-effect adjustment	—		—		—		—		(440)		(440)
Other comprehensive loss, net	—		—		(4,010)		—		—		(4,010)
Stock-based compensation and net issuance of common stock for share vesting	—		900		—		—		—		900
Common stock reissuances, repurchases and related expenses	—		—		—		1,071		—		1,071
Balances, March 31, 2020	$	205	$	776,607	$	(62,626)	$	(106,913)	$	46,562	$	653,835
Net loss	—		—		—		—		(238,301)		(238,301)
Other comprehensive loss, net	—		—		(7,121)		—		—		(7,121)
Stock-based compensation and net issuance of common stock for share vesting	1		1,043		—		—		—		1,044
Common stock repurchases and related expenses	—		—		—		(42)		—		(42)
Balances, June 30, 2020	$	206	$	777,650	$	(69,747)	$	(106,955)	$	(191,739)	$	409,415
Balances, December 31, 2020	$	206	$	779,424	$	(111,985)	$	(107,014)	$	(360,529)	$	200,102
Net loss	—		—		—		—		(32,928)		(32,928)
Other comprehensive income, net	—		—		1,484		—		—		1,484
Stock-based compensation and net issuance of common stock for share vesting	1		2,182		—		—		—		2,183
Common stock repurchases and related expenses	—		—		—		(680)		—		(680)
Balances, March 31, 2021	$	207	$	781,606	$	(110,501)	$	(107,694)	$	(393,457)	$	170,161
Net loss	—		—		—		—		(18,991)		(18,991)
Other comprehensive loss, net	—		—		10,180		—		—		10,180
Stock-based compensation and net issuance of common stock for share vesting	1		980		—		—		—		981
Balances, June 30, 2021	$	208	$	782,586	$	(100,321)	$	(107,694)	$	(412,448)	$	162,331

Refer to accompanying Notes to Condensed Consolidated Financial Statements.

13

ALPHA METALLURGICAL RESOURCES, INC. AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements

(Unaudited, amounts in thousands except share and per share data)

(1) Business and Basis of Presentation

Business

Alpha Metallurgical Resources, Inc. (“Alpha” or the “Company”) is a Tennessee-based mining company with operations across Virginia and West Virginia. With customers across the globe, high-quality reserves and significant port capacity, Alpha is a leading U.S. supplier of metallurgical products for the steel industry.

Basis of Presentation

Together, the condensed consolidated statements of operations, comprehensive loss, balance sheets, cash flows and stockholders’ equity for the Company are referred to as the “Condensed Consolidated Financial Statements.” The Condensed Consolidated Financial Statements are also referenced across periods as “Condensed Consolidated Statements of Operations,” “Condensed Consolidated Statements of Comprehensive Loss,” “Condensed Consolidated Balance Sheets,” “Condensed Consolidated Statements of Cash Flows,” and “Condensed Consolidated Statements of Stockholders’ Equity.” The Company’s former Northern Appalachia (“NAPP”) operations results of operations and financial position are reported as discontinued operations in the Condensed Consolidated Financial Statements. The historical information in the accompanying Notes to the Condensed Consolidated Financial Statements has been restated to reflect the effects of the Company’s former NAPP operations being reported as discontinued operations in the Condensed Consolidated Financial Statements. Refer to Note 2 for further information on discontinued operations.

The Condensed Consolidated Financial Statements include all wholly-owned subsidiaries’ results of operations for the three and six months ended June 30, 2021 and 2020. All significant intercompany transactions have been eliminated in consolidation.

The accompanying interim Condensed Consolidated Financial Statements are unaudited and have been prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”) and in accordance with the rules and regulations of the United States Securities and Exchange Commission (“SEC”) for Form 10-Q. Such rules and regulations allow the omission of certain information and footnote disclosures normally included in the financial statements prepared in accordance with U.S. GAAP as long as the financial statements are not misleading. In the opinion of management, these interim Condensed Consolidated Financial Statements reflect all normal and recurring adjustments necessary for a fair presentation of the results for the periods presented. Results of operations for the three and six months ended June 30, 2021 are not necessarily indicative of the results to be expected for the year ending December 31, 2021 or any other period. These interim Condensed Consolidated Financial Statements should be read in conjunction with the Company’s Consolidated Financial Statements and related notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2020.

Liquidity Risks and Uncertainties

The Company believes it will have sufficient liquidity to meet its working capital requirements, anticipated capital expenditures, debt service requirements, acquisition-related obligations, and reclamation obligations for the 12 months subsequent to the issuance of these financial statements. However, the Company may need to raise additional funds if market conditions deteriorate and may not be able to do so in a timely fashion, or at all. The Company relies on a number of assumptions in budgeting for future activities. These include the costs for mine development to sustain capacity of its operating mines, cash flows from operations, effects of regulation and taxes by governmental agencies, mining technology improvements and reclamation costs. These assumptions are inherently subject to significant business, political, economic, regulatory, environmental and competitive uncertainties, contingencies and risks, all of which are difficult to predict and many of which are beyond the Company’s control. Therefore, the Company’s cash on hand and from future operations will be subject to any significant changes in these assumptions.

COVID-19 Pandemic

In the first quarter of 2020, the COVID-19 virus was declared a pandemic by the World Health Organization. The COVID-19 pandemic has had negative impacts on the Company’s business, results of operations, financial condition and cash flows. The full extent of the impact of the COVID-19 pandemic on the Company’s operational and financial performance will depend on certain developments, including the duration and spread of the outbreak, its impact on its customers and suppliers

14

ALPHA METALLURGICAL RESOURCES, INC. AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements

(Unaudited, amounts in thousands except share and per share data)

and the range of governmental and community reactions to the pandemic, which are still uncertain and still cannot be fully predicted.

Recently Adopted Accounting Guidance

Convertible Debt and Contracts in Entity’s Own Equity: In August 2020, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2020-06, Debt—Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging—Contracts in Entity’s Own Equity (Subtopic 815-40) (“ASU 2020-06”). The amendments in this update simplify the accounting for certain financial instruments with characteristics of liabilities and equity, including convertible instruments and contracts in an entity’s own equity, such as the Company’s outstanding Series A warrants. For public business entities, the standard is effective for fiscal years beginning after December 15, 2021, with early adoption permitted. The Company adopted ASU 2020-06 during the first quarter of 2021. The adoption of this ASU did not have a material impact on the Company's Condensed Consolidated Financial Statements and related disclosures.

Reference Rate Reform: In January 2021, the FASB issued ASU 2021-01, Reference Rate Reform (Topic 848) (“ASU 2021-01”). The amendments in this update clarify that certain optional expedients and exceptions in Topic 848 for contract modifications and hedge accounting apply to derivatives that are affected by the discounting transition. For all entities, the standard is effective immediately. The Company adopted ASU 2021-01 during the first quarter of 2021. The adoption of this ASU did not have a material impact on the Company's Condensed Consolidated Financial Statements and related disclosures.

Certain Modifications or Exchanges of Freestanding Equity-Classified Written Call Options: In May 2021, the FASB issued ASU 2021-04, Earnings Per Share (Topic 260), Debt—Modifications and Extinguishments (Subtopic 470-50), Compensation—Stock Compensation (Topic 718), and Derivatives and Hedging—Contracts in Entity’s Own Equity (Subtopic 815-40) (“ASU 2021-04”). The amendments in this update provide final guidance that requires issuers to account for modifications or exchanges of freestanding equity-classified written call options, such as the Company’s outstanding Series A warrants, that remain equity classified after the modification or exchange based on the economic substance of the modification or exchange. This ASU addresses the diversity in practice in issuers’ accounting by providing a principles-based framework to determine whether an issuer should recognize the modification or exchange as 1) an adjustment to equity and, if so, the related earnings per share effects, if any, or 2) an expense and, if so, the manner and pattern of recognition. For all entities, the standard is effective for fiscal years beginning after December 15, 2021, with early adoption permitted. The Company adopted ASU 2021-04 during the second quarter of 2021. The adoption of this ASU did not have a material impact on the Company's Condensed Consolidated Financial Statements and related disclosures.

(2) Discontinued Operations

Discontinued operations consist of activity related to the Company’s former NAPP operations.

On December 10, 2020, the Company closed on a transaction to sell its thermal coal mining operations located in Pennsylvania consisting primarily of its Cumberland mining complex and related property to a third party purchaser, Iron Senergy Holdings, LLC (“Iron Senergy”). The mining permits associated with the Cumberland operations were obtained by Iron Senergy at closing. During the second quarter of 2021, nearly all of the Company’s remaining surety bonds were released and Iron Senergy’s replacement bonds were accepted through the administrative process with only $30 remaining and expected to be released in the short-term.

Major Financial Statement Components of Discontinued Operations

The loss from discontinued operations before income taxes for the three and six months ended June 30, 2021 was $401 and $638, respectively. The major components of loss from discontinued operations before income taxes in the Condensed Consolidated Statements of Operations for the three and six months ended June 30, 2020 are as follows:

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ALPHA METALLURGICAL RESOURCES, INC. AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements

(Unaudited, amounts in thousands except share and per share data)

	Three Months Ended June 30, 2020 (1)		Six Months Ended June 30, 2020 (1)
Revenues:
Total revenues	$	57,898	$	125,554
Costs and expenses:
Cost of coal sales (exclusive of items shown separately below)	47,843		110,265
Depreciation, depletion and amortization	2,193		9,042
Accretion on asset retirement obligations	735		1,471
Selling, general and administrative expenses (2)	169		1,387
Asset impairment and restructuring (3)	163,675		163,675
Other non-major income items, net	(162)		(109)
Loss from discontinued operations before income taxes	$	(156,555)	$	(160,177)

(1) Includes minor residual activity related to the Company’s former Powder River Basin (“PRB”) operations.

(2) Represents professional and legal fees.

(3) Refer to Note 8 for additional information on asset impairment and restructuring during the periods.

Refer to the Condensed Consolidated Statements of Operations for loss per share information related to discontinued operations.

The major components of assets and liabilities that are classified as discontinued operations in the Condensed Consolidated Balance Sheets are as follows:

	June 30, 2021		December 31, 2020
Assets:
Trade accounts receivable, net of allowance for doubtful accounts	$	—	$	7,504
Prepaid expenses and other current assets	$	2,157	$	3,431
Other non-current assets (1)	$	9,477	$	9,473
Liabilities:
Trade accounts payable, accrued expenses and other current liabilities	$	7,101	$	12,306
Workers’ compensation and black lung obligations, non-current	$	26,205	$	27,799
Other non-current liabilities	$	1,291	$	1,291

(1) Primarily comprised of workers’ compensation insurance receivable and long-term restricted investments collateralizing workers’ compensation obligations.

The major components of cash flows related to discontinued operations are as follows:

	Six Months Ended June 30, 2020
Depreciation, depletion and amortization	$	9,042
Capital expenditures	$	24,169
Other significant operating non-cash items related to discontinued operations:
Accretion on asset retirement obligations	$	1,471
Asset impairment and restructuring	$	163,675

16

ALPHA METALLURGICAL RESOURCES, INC. AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements

(Unaudited, amounts in thousands except share and per share data)

(3) Revenue

Disaggregation of Revenue from Contracts with Customers

The Company earns revenues primarily through the sale of coal produced at Company operations and coal purchased from third parties. The Company extracts, processes and markets met and thermal coal from deep and surface mines for sale to steel and coke producers, industrial customers, and electric utilities.

The Company has disaggregated revenue between met coal and thermal coal and export and domestic revenues which depicts the pricing and contract differences between the two. Export revenue generally is derived by spot or short term contracts with pricing determined at the time of shipment or based on a market index; whereas domestic revenue is characterized by contracts that typically have a term of one year or longer and typically the pricing is fixed. The following tables disaggregate the Company’s coal revenues by product category and by market to depict how the nature, amount, timing, and uncertainty of the Company’s coal revenues and cash flows are affected by economic factors:

	Three Months Ended June 30, 2021
	Met Coal		Thermal Coal		Total
Export coal revenues	$	250,324	$	5,693	$	256,017
Domestic coal revenues	105,235		32,206		137,441
Total coal revenues	$	355,559	$	37,899	$	393,458

	Three Months Ended June 30, 2020
	Met Coal		Thermal Coal		Total
Export coal revenues	$	230,293	$	10,369	$	240,662
Domestic coal revenues	82,903		29,550		112,453
Total coal revenues	$	313,196	$	39,919	$	353,115

	Six Months Ended June 30, 2021
	Met		Thermal		Total
Export coal revenues	$	493,076	$	6,724	$	499,800
Domestic coal revenues	205,477		73,633		279,110
Total coal revenues	$	698,553	$	80,357	$	778,910

	Six Months Ended June 30, 2020
	Met		Thermal		Total
Export coal revenues	$	474,364	$	17,752	$	492,116
Domestic coal revenues	197,591		64,868		262,459
Total coal revenues	$	671,955	$	82,620	$	754,575

Performance Obligations

The following table includes estimated revenue expected to be recognized in the future related to performance obligations that are unsatisfied as of June 30, 2021:

	Remainder of 2021		2022		2023		2024		2025		Total
Estimated coal revenues	$	65,852	$	50,935	$	—	$	—	$	—	$	116,787

(4) Accumulated Other Comprehensive Loss

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ALPHA METALLURGICAL RESOURCES, INC. AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements

(Unaudited, amounts in thousands except share and per share data)

The following tables summarize the changes to accumulated other comprehensive loss during the six months ended June 30, 2021 and 2020:

	Balance January 1, 2021		Other comprehensive income before reclassifications		Amounts reclassified from accumulated other comprehensive loss		Balance June 30, 2021
Employee benefit costs	$	(111,985)	$	8,838	$	2,826	$	(100,321)

	Balance January 1, 2020		Other comprehensive loss before reclassifications		Amounts reclassified from accumulated other comprehensive loss		Balance June 30, 2020
Employee benefit costs	$	(58,616)	$	(14,154)	$	3,023	$	(69,747)

The following table summarizes the amounts reclassified from accumulated other comprehensive loss and the Condensed Consolidated Statements of Operations line items affected by the reclassification during the three and six months ended June 30, 2021 and 2020:

Details about accumulated other comprehensive loss components	Amounts reclassified from accumulated other comprehensive loss								Affected line item in the Condensed Consolidated Statements of Operations
	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Employee benefit costs:
Amortization of net actuarial loss (1)	$	1,342	$	934	$	2,826	$	1,728	Miscellaneous income (loss), net
Settlement (1)	—		95		—		1,295		Miscellaneous income (loss), net
Total before income tax	$	1,342	$	1,029	$	2,826	$	3,023
Income tax	—		—		—		—		Income tax (expense) benefit
Total, net of income tax	$	1,342	$	1,029	$	2,826	$	3,023

(1) These accumulated other comprehensive loss components are included in the computation of net periodic benefit costs for certain employee benefit plans. Refer to Note 14.

(5) Net Loss Per Share

The number of shares used to calculate basic net loss per common share is based on the weighted average number of the Company’s outstanding common shares during the respective period. The number of shares used to calculate diluted net loss per common share is based on the number of common shares used to calculate basic net loss per common share plus the dilutive effect of stock options and other stock-based instruments held by the Company’s employees and directors during the period, and the Company’s outstanding Series A warrants. The dilutive effect of outstanding stock-based instruments is determined by application of the treasury stock method. The warrants become dilutive for diluted net loss per common share calculations when the market price of the Company’s common stock exceeds the exercise price. As discussed below, dilutive securities are not included in the computation of diluted net loss per common share as the impact would be anti-dilutive. Refer to the Condensed Consolidated Statements of Operations for net loss per common share for the three and six months ended June 30, 2021 and 2020.

For the three months ended June 30, 2021 and 2020, 942,549 and 1,581,608 warrants, stock options, and other stock-based instruments, respectively, were excluded from the computation of dilutive net loss per common share because they would have been anti-dilutive. For the six months ended June 30, 2021 and 2020, 948,398 and 1,492,657 warrants, stock options, and other stock-based instruments, respectively, were excluded from the computation of dilutive net loss per common share because they would have been anti-dilutive. When applying the treasury stock method, anti-dilution generally occurs when the exercise prices or unrecognized compensation cost per share are higher than the Company’s average stock price during an applicable period.

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ALPHA METALLURGICAL RESOURCES, INC. AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements

(Unaudited, amounts in thousands except share and per share data)

Anti-dilution also occurs in periods of a net loss, and the dilutive impact of all share-based compensation awards are excluded. For the three months ended June 30, 2021 the weighted average share impact of stock options and other stock-based instruments and for the three months ended June 30, 2020 the weighted average share impact of other stock-based instruments that were excluded from the calculation of diluted shares due to the Company incurring a net loss for the period were 313,640 and 9,572, respectively. For the six months ended June 30, 2021 and 2020, the weighted average share impact of stock options and other stock-based instruments that were excluded from the calculation of diluted shares due to the Company incurring a net loss for the period were 301,684 and 42,139, respectively.

(6) Inventories, net

Inventories, net consisted of the following: 

	June 30, 2021		December 31, 2020
Raw coal	$	21,071	$	15,084
Saleable coal	96,768		69,262
Materials, supplies and other, net	26,577		23,705
Total inventories, net	$	144,416	$	108,051

(7) Acquired Intangibles

The Company has recognized assets for acquired above market-priced coal supply agreements and acquired mine permits and liabilities for acquired below market-priced coal supply agreements. The balances and respective balance sheet classifications of such assets and liabilities as of June 30, 2021 and December 31, 2020, net of accumulated amortization, are set forth in the following tables:

	June 30, 2021
	Assets (1)		Liabilities (2)		Net Total
Coal supply agreements, net	$	—	$	(163)	$	(163)
Acquired mine permits, net	81,610		—		81,610
Total	$	81,610	$	(163)	$	81,447

	December 31, 2020
	Assets (1)		Liabilities (2)		Net Total
Coal supply agreements, net	$	—	$	(327)	$	(327)
Acquired mine permits, net	88,196		—		88,196
Total	$	88,196	$	(327)	$	87,869

(1) Included within other acquired intangibles, net of accumulated amortization on the Company’s Condensed Consolidated Balance Sheets.

(2) Included within other non-current liabilities on the Company’s Condensed Consolidated Balance Sheets.

The following table details the amortization of the Company’s acquired intangibles included within amortization of acquired intangibles, net in the Condensed Consolidated Statements of Operations:

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Amortization of mine permits	$	2,635	$	3,320	$	6,586	$	6,648
Amortization of above-market coal supply agreements	$	—	$	—	$	—	$	18
Amortization of below-market coal supply agreements	(82)		(1,439)		(164)		(4,274)
Net income	$	(82)	$	(1,439)	$	(164)	$	(4,256)

19

ALPHA METALLURGICAL RESOURCES, INC. AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements

(Unaudited, amounts in thousands except share and per share data)

(8) Asset Impairment and Restructuring

Long-lived Asset Impairment

During the six months ended June 30, 2021, long-lived asset impairment of $60 was recorded in the All Other category to reduce the carrying value of property, plant, and equipment, net, due to capital spending during the period at previously impaired locations requiring the impairment of certain additional assets not considered recoverable.

During the second quarter of 2020, as a result of the weakening coal market conditions due in part to the impact of the global COVID-19 pandemic, the Company announced that it would take certain strategic actions with respect to two of its thermal coal mining complexes in an effort to strengthen its financial performance and improve forecasted liquidity. The Company announced that an underground mine and preparation plant located in West Virginia would be idled during the third quarter of 2020. In addition, the Company decided not to move forward with the construction of a new refuse impoundment at its Cumberland mine in Pennsylvania and would therefore no longer spend the significant capital required in connection with the project. As a result, the Cumberland mine was expected to cease production by the end of 2022. On December 10, 2020, the Company sold its Cumberland mining operations. Refer to Note 2 for further details.

In connection with the preparation of the Company’s financial statements for the quarter ended June 30, 2020, the Company determined that the strategic actions taken by the Company during the three months ended June 30, 2020, discussed above, shortened the lives of two mining complexes, and that continued weakening in metallurgical and thermal coal pricing had resulted in forecasted margins at certain locations falling below amounts necessary for full recoverability. As a result of these determinations, the Company assessed that indicators of impairment were present for three long-lived asset groups within its Met reporting segment and four long-lived asset groups within its All Other category. The Company therefore performed impairment testing on these assets and determined that, as of May 31, 2020, the carrying amounts of the asset groups exceeded both their undiscounted cash flows and their estimated fair values. The Company estimated the fair value of these asset groups generally using a discounted cash flow analysis utilizing market-participant assumptions.

During the first quarter of 2020, due to declines in metallurgical and thermal coal pricing which reduced forecasted margins at certain locations to amounts below those required for full recoverability, the Company determined that indicators of impairment were present for four long-lived asset groups within its Met reporting segment and three long-lived asset groups within its All Other category and performed impairment testing as of February 29, 2020. At February 29, 2020, the Company determined that the carrying amounts of the asset groups exceeded both their undiscounted cash flows and their estimated fair values. The Company estimated the fair value of these asset groups generally using a discounted cash flow analysis utilizing market-participant assumptions.

The following tables present the details of the long-lived asset impairment during the three and six months ended June 30, 2020:

	Three Months Ended June 30, 2020		Six Months Ended June 30, 2020
Continuing operations:
Met	$	—	$	32,951
All Other	17,390		18,148
Total from continuing operations	$	17,390	$	51,099
Discontinued operations:	$	144,348	$	144,348
Total long-lived asset impairment:	$	161,738	$	195,447

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ALPHA METALLURGICAL RESOURCES, INC. AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements

(Unaudited, amounts in thousands except share and per share data)

	Three Months Ended June 30, 2020		Six Months Ended June 30, 2020
Continuing operations:
Mineral rights, net	$	2,241	$	24,066
Property, plant, and equipment, net	6,496		12,562
Acquired mine permits, net	8,653		14,471
Total from continuing operations	$	17,390	$	51,099
Discontinued operations:
Mineral rights, net	$	16,364	$	16,364
Property, plant, and equipment, net	127,984		127,984
Total from discontinued operations	$	144,348	$	144,348
Total long-lived asset impairment:
Mineral rights, net	$	18,605	$	40,430
Property, plant, and equipment, net	134,480		140,546
Acquired mine permits, net	8,653		14,471
Total long-lived asset impairment	$	161,738	$	195,447

Restructuring

As a result of the strategic actions announced in the second quarter of 2020 and subsequent changes to severance and employee-related benefits, the Company recorded restructuring expense of ($621) in the All Other category during the six months ended June 30, 2021.

As a result of the strategic actions discussed above, the Company recorded restructuring expense during the three and six months ended June 30, 2020 as follows:

	Three and Six Months Ended June 30, 2020
	Total Restructuring		Continuing Operations (3)		Discontinued Operations
Severance and employee-related benefits (1)	$	20,553	$	2,301	$	18,252
Other costs (2)	1,882		807		1,075
Total restructuring expense	$	22,435	$	3,108	$	19,327

(1) Severance and employee-related benefits were considered probable and estimable based on provisions of contractual agreements and existing employee benefit plans.

(2) Includes accelerated amortization of deferred longwall move expenses of $668, allowance for advanced mining royalties of $407, and allowance for obsolete materials and supplies inventory of $807.

(3) Total restructuring expense from continuing operations of $3,108 was recorded within the All Other category and affected Accrued expenses and other current liabilities, Other non-current liabilities, and Inventories, net.

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ALPHA METALLURGICAL RESOURCES, INC. AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements

(Unaudited, amounts in thousands except share and per share data)

(9) Long-Term Debt

Long-term debt consisted of the following: 

	June 30, 2021		December 31, 2020
Term Loan Credit Facility - due June 2024	$	550,564	$	553,373
ABL Facility - due April 2022	—		3,350
LCC Note Payable	27,500		27,500
LCC Water Treatment Obligation	6,250		6,875
Other (1)	6,665		8,475
Debt discount and issuance costs	(11,312)		(17,046)
Total long-term debt	579,667		582,527
Less current portion	(29,404)		(28,830)
Long-term debt, net of current portion	$	550,263	$	553,697

(1) Includes financing leases.

Term Loan Credit Facility - due June 2024

As of June 30, 2021, the borrowings made under the senior secured term loan facility with a maturity date of June 14, 2024 (the “Term Loan Credit Facility”) were comprised of Eurocurrency Rate Loans (as defined therein) with an interest rate of 10.00%, calculated as the Eurocurrency rate during the period plus an applicable rate of 8.00%. As of June 30, 2021, the carrying value of the Term Loan Credit Facility was $541,572, with $5,618 classified as current within the Condensed Consolidated Balance Sheets. As of December 31, 2020, the carrying value of the Term Loan Credit Facility was $540,643, with $5,618 classified as current within the Condensed Consolidated Balance Sheets.

All obligations under the Term Loan Credit Facility are guaranteed by substantially all of Alpha’s direct and indirect subsidiaries. Certain obligations under the Term Loan Facility are secured by a senior lien, subject to certain exceptions (including the ABL Priority Collateral described below), by substantially all of Alpha’s assets and the assets of Alpha’s subsidiary guarantors (“Term Loan Priority Collateral”), in each case subject to exceptions. The obligations under the Term Loan Credit Facility are also secured by a junior lien, again subject to certain exceptions, against the ABL Priority Collateral. The Term Loan Facility contains negative and affirmative covenants including certain financial covenants that are more flexible than the covenants in the Amended and Restated Credit Agreement dated November 9, 2018. The Company was in compliance with all covenants under this agreement as of June 30, 2021.

Amended and Restated Asset-Based Revolving Credit Agreement

The Amended and Restated Asset-Based Revolving Credit Agreement includes a senior secured asset-based revolving credit facility (the “ABL Facility”). Under the ABL Facility, the Company may borrow cash or obtain letters of credit, on a revolving basis. As of June 30, 2021, there were no outstanding borrowings under the ABL Facility. As of December 31, 2020, the carrying value of the ABL Facility was $3,350, all of which was classified as long-term within the Condensed Consolidated Balance Sheets. As of June 30, 2021 and December 31, 2020, the Company had $128,752 and $123,108 letters of credit outstanding under the ABL Facility, respectively.

The Amended and Restated Asset-Based Revolving Credit Agreement provides that a specified percentage of billed, unbilled and approved foreign receivables and raw and clean inventory meeting certain criteria are eligible to be counted for purposes of collateralizing the amount of financing available, subject to certain terms and conditions. Availability under the ABL Facility is calculated on a monthly basis and fluctuates based on qualifying amounts of coal inventory and trade accounts receivable (the “Borrowing Base”) and the facility's covenant limitations related to the Fixed Charge Coverage Ratio (as defined therein). In accordance with terms of the ABL Facility, the Company may be required to collateralize the ABL Facility to the extent outstanding borrowings and letters of credit under the ABL Facility exceed the Borrowing Base after considering covenant limitations.

The ABL Facility is guaranteed by substantially all of Alpha’s direct and indirect subsidiaries (together with Alpha, the “Loan Parties”) and secured by all or substantially all assets of the Loan Parties, including equity in Alpha’s direct domestic subsidiaries and first-tier foreign subsidiaries, as collateral for the obligations under the ABL Facility. The ABL Facility has a

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ALPHA METALLURGICAL RESOURCES, INC. AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements

(Unaudited, amounts in thousands except share and per share data)

first lien on ABL Priority Collateral (as defined therein) and a second lien on Term Loan Priority Collateral. The Amended and Restated Asset-Based Revolving Credit Agreement, as amended, and related documents contain negative and affirmative covenants including certain financial covenants. The Company is in compliance with all covenants under these agreements as of June 30, 2021.

(10) Acquisition-Related Obligations

Acquisition-related obligations consisted of the following:

	June 30, 2021		December 31, 2020
Contingent Revenue Obligation	$	23,904	$	28,967
Environmental Settlement Obligations	9,702		10,391
UMWA Funds Settlement Liability	2,000		2,000
Discount	(768)		(1,491)
Total acquisition-related obligations	34,838		39,867
Less current portion	(22,866)		(19,099)
Acquisition-related obligations, net of current portion	$	11,972	$	20,768

Contingent Revenue Obligation

As of June 30, 2021 and December 31, 2020, the carrying value of the Contingent Revenue Obligation was $23,904 and $28,967, with $13,465 and $11,393 classified as current, respectively, classified as an acquisition-related obligation in the Condensed Consolidated Balance Sheets. Refer to Note 12 for further disclosures related to the fair value assignment and methods used.

During the second quarter of 2021, the Company paid $11,396 pursuant to the terms of the Contingent Revenue Obligation.

(11) Asset Retirement Obligations

The following table summarizes the changes in asset retirement obligations for the six months ended June 30, 2021:

Total asset retirement obligations at December 31, 2020	$	165,064
Accretion for the period	13,296
Revisions in estimated cash flows	(17)
Expenditures for the period	(8,592)
Total asset retirement obligations at June 30, 2021	169,751
Less current portion (1)	(28,911)
Long-term portion	$	140,840

(1)    Included within accrued expenses and other current liabilities on the Company’s Condensed Consolidated Balance Sheets.

(12) Fair Value of Financial Instruments and Fair Value Measurements

The estimated fair values of financial instruments are determined based on relevant market information. These estimates involve uncertainty and cannot be determined with precision.

The carrying amounts for cash and cash equivalents, trade accounts receivable, net, prepaid expenses and other current assets, short-term and long-term restricted cash, short-term and long-term deposits, trade accounts payable, and accrued expenses and other current liabilities approximate fair value as of June 30, 2021 and December 31, 2020 due to the short maturity of these instruments.

23

ALPHA METALLURGICAL RESOURCES, INC. AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements

(Unaudited, amounts in thousands except share and per share data)

The following tables set forth by level, within the fair value hierarchy, the Company’s long-term debt at fair value as of June 30, 2021 and December 31, 2020:

	June 30, 2021
	Carrying      Amount (1)		Total Fair Value		Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Term Loan Credit Facility - due June 2024	$	541,572	$	488,626	$	—	$	488,626	$	—
LCC Note Payable	26,046		25,172		—		—		25,172
LCC Water Treatment Obligation	5,384		4,945		—		—		4,945
Total long-term debt	$	573,002	$	518,743	$	—	$	488,626	$	30,117

	December 31, 2020
	Carrying      Amount (1)		Total Fair Value		Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Term Loan Credit Facility - due June 2024	$	540,643	$	379,614	$	—	$	379,614	$	—
ABL Facility - due April 2022	3,350		3,057		—		—		3,057
LCC Note Payable	24,423		20,328		—		—		20,328
LCC Water Treatment Obligation	5,636		4,281		—		—		4,281
Total long-term debt	$	574,052	$	407,280	$	—	$	379,614	$	27,666

(1) Net of debt discounts and debt issuance costs.

The following tables set forth by level, within the fair value hierarchy, the Company’s acquisition-related obligations at fair value as of June 30, 2021 and December 31, 2020:

	June 30, 2021
	Carrying      Amount (1)		Total Fair Value		Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
UMWA Funds Settlement Liability	$	1,823	$	1,797	$	—	$	—	$	1,797
Environmental Settlement Obligations	9,111		8,764		—		—		8,764
Total acquisition-related obligations	$	10,934	$	10,561	$	—	$	—	$	10,561

	December 31, 2020
	Carrying      Amount (1)		Total Fair Value		Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
UMWA Funds Settlement Liability	$	1,662	$	1,426	$	—	$	—	$	1,426
Environmental Settlement Obligations	9,237		7,760		—		—		7,760
Total acquisition-related obligations	$	10,899	$	9,186	$	—	$	—	$	9,186

(1) Net of discounts.

The following table sets forth by level, within the fair value hierarchy, the Company’s financial and non-financial assets and liabilities that were accounted for at fair value on a recurring basis as of June 30, 2021 and December 31, 2020. Financial and non-financial assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. The Company’s assessment of the significance of a particular input to the fair value measurement requires judgment, and may affect the determination of fair value for assets and liabilities and their placement within the fair

24

ALPHA METALLURGICAL RESOURCES, INC. AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements

(Unaudited, amounts in thousands except share and per share data)

value hierarchy levels.

	June 30, 2021
	Total Fair Value		Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Contingent Revenue Obligation	$	23,904	$	—	$	—	$	23,904
Trading securities	$	31,189	$	29,311	$	1,878	$	—

	December 31, 2020
	Total Fair Value		Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Contingent Revenue Obligation	$	28,967	$	—	$	—	$	28,967
Trading securities	$	22,498	$	20,092	$	2,406	$	—

The following tables present a reconciliation of the financial and non-financial assets and liabilities that were accounted for at fair value on a recurring basis and that were categorized within Level 3 of the fair value hierarchy:

	December 31, 2020		Payments		Loss (Gain) Recognized in Earnings (1)		Transfer In (Out) of Level 3 Fair Value Hierarchy		June 30, 2021
Contingent Revenue Obligation	$	28,967	$	(11,396)	$	6,333	$	—	$	23,904

(1) The loss recognized in earnings resulted primarily from a decrease in the annual risk-free interest rate as of June 30, 2021.

	December 31, 2019		Payments		Loss (Gain) Recognized in Earnings (1)		Transfer In (Out) of Level 3 Fair Value Hierarchy		June 30, 2020
Contingent Revenue Obligation	$	52,427	$	(14,710)	$	(17,049)	$	—	$	20,668

(1) The gain recognized in earnings resulted primarily from a change in the forecasted future revenue associated with this obligation and an increase in annualized volatility as of June 30, 2020.

The following methods and assumptions were used to estimate the fair values of the assets and liabilities in the tables above:

Level 1 Fair Value Measurements

Trading Securities - Includes money market funds and other cash equivalents. The fair value is based on observable market data.

Level 2 Fair Value Measurements

Term Loan Credit Facility - due June 2024 - The fair value is based on the average between bid and ask prices provided by a third-party. As the fair value is based on observable market inputs and due to limited trading volume in the Term Loan Credit Facility, the Company has classified the fair value within Level 2 of the fair value hierarchy.

Trading Securities - Includes certificates of deposit, mutual funds, corporate debt securities and U.S. treasury and agency securities. The fair values of the Company’s trading securities are obtained from a third-party pricing service provider. The fair values provided by the pricing service provider are based on observable market inputs including credit spreads and broker-dealer quotes, among other inputs. The Company classifies the prices obtained from the pricing services within Level 2 of the fair value hierarchy because the underlying inputs are directly observable from active markets. However, the pricing models used entail a certain amount of subjectivity and therefore differing judgments in how the underlying inputs are modeled could result in different estimates of fair value.

25

ALPHA METALLURGICAL RESOURCES, INC. AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements

(Unaudited, amounts in thousands except share and per share data)

Level 3 Fair Value Measurements

ABL Facility - due April 2022 - Observable transactions are not available to aid in determining the fair value of this item. Therefore, the fair value was derived by using the expected present value approach in which estimated cash flows are discounted using a risk-free interest rate adjusted for credit risk (discount rate of approximately 9% as of December 31, 2020).

LCC Note Payable, LCC Water Treatment Obligation, UMWA Funds Settlement Liability and Environmental Settlement Obligations - Observable transactions are not available to aid in determining the fair value of these items. Therefore, the fair value was derived by using the expected present value approach in which estimated cash flows are discounted using a risk-free interest rate adjusted for credit risk (discount rates of approximately 22% and 34% as of June 30, 2021 and December 31, 2020, respectively).

Contingent Revenue Obligation - The fair value of the contingent revenue obligation was estimated using a Black-Scholes pricing model and is marked to market at each reporting period with changes in value reflected in earnings. The inputs included in the Black-Scholes pricing model are the Company's forecasted future revenue, the stated royalty rate, the remaining periods in the obligation, annual risk-free interest rate based on the U.S. Constant Maturity Treasury Curve and annualized volatility. The annualized volatility was calculated by observing volatilities for comparable companies with adjustments for the Company's size and leverage. The range of significant unobservable inputs used to value the contingent revenue obligation as of June 30, 2021 and December 31, 2020, are set forth in the following table:

	June 30, 2021	December 31, 2020
Forecasted future revenue	$1.1 - $1.2 billion	$0.9 - $1.1 billion
Stated royalty rate	1.0% - 1.5%	1.0% - 1.5%
Annualized volatility	17.6% - 40.1% (29.0%)	19.4% - 52.1% (28.0%)

(13) Income Taxes

For the six months ended June 30, 2021, the Company recorded income tax expense of $3 on a loss from continuing operations before income taxes of $51,278. The income tax expense differs from the expected statutory amount primarily due to the increase in the valuation allowance and the impact of state income taxes, net of federal impact, partially offset by the permanent impact of percentage depletion deductions. As of June 30, 2021, the Company anticipates that no current federal income tax liability will be generated in 2021. For the six months ended June 30, 2020, the Company recorded income tax benefit of $2,155 on a loss from continuing operations before income taxes of $120,087. The income tax benefit differs from the expected statutory amount primarily due to the increase in valuation allowance, partially offset by the permanent impact of percentage depletion deductions, the impact of state income taxes, net of federal tax impact, and the recording of a discrete tax benefit related to the refundability of previously sequestered AMT Credits.

During the six months ended June 30, 2021, the Company recorded an increase of $6,184 to its deferred tax asset valuation allowance. The increase in the valuation allowance results from an increase in deferred tax assets for which the Company is unable to support realization. The Company currently is relying primarily on the reversal of taxable temporary differences, along with consideration of taxable income via carryback to prior years and tax planning strategies, to support the realization of deferred tax assets. For each reporting period, the Company updates its assessment regarding the realizability of its deferred tax assets, including scheduling the reversal of its deferred tax assets and liabilities, to determine the amount of valuation allowance needed. Scheduling the reversal of deferred tax asset and liability balances requires judgment and estimation. The Company believes the deferred tax liabilities relied upon as future taxable income in its assessment will reverse in the same period and jurisdiction and are of the same character as the temporary differences giving rise to the deferred tax assets that will be realized. The valuation allowance recorded represents the portion of deferred tax assets for which the Company is unable to support realization through the methods described above.

(14) Employee Benefit Plans

The components of net periodic (benefit) expense other than the service cost component for the employee benefit plan obligations below are included in the line item miscellaneous income (loss), net in the Condensed Consolidated Statements of Operations.

Pension

26

ALPHA METALLURGICAL RESOURCES, INC. AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements

(Unaudited, amounts in thousands except share and per share data)

The following table details the components of the net periodic benefit for pension obligations:

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Interest cost	$	3,362	$	4,656	$	6,784	$	9,391
Expected return on plan assets	(7,119)		(6,748)		(14,366)		(13,560)
Amortization of net actuarial loss	734		521		1,609		990
Settlement	—		63		—		1,230
Net periodic benefit	$	(3,023)	$	(1,508)	$	(5,973)	$	(1,949)

During the three months ended June 30, 2021, an annual census data actuarial revaluation of pension obligations was performed, which resulted in a decrease in the liability for pension obligations of approximately $8,838 with the offset to accumulated other comprehensive gain and a slight increase in net periodic benefit to be recognized subsequent to the revaluation date.

As a result of the recent funding relief granted under the American Rescue Plan Act, estimated contributions requirements to the pension plans were reduced relative to the Company’s previous estimates. The Company contributed $3,701 to the pension plans during the six months ended June 30, 2021 and expects to contribute $7,664 in the remainder of 2021.

Black Lung

The following table details the components of the net periodic expense for black lung obligations:

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Service cost	$	739	$	492	$	1,478	$	980
Interest cost	607		775		1,214		1,597
Expected return on plan assets	(14)		(14)		(28)		(27)
Amortization of net actuarial loss	522		286		1,044		501
Net periodic expense	$	1,854	$	1,539	$	3,708	$	3,051

Defined Contribution and Profit-Sharing Plans

During the second quarter of 2020, the Company’s matching contributions under the Alpha Metallurgical Resources (formerly Contura Energy) 401(k) Retirement Savings Plan (the “Plan”) were suspended due to weak market conditions at that time. Effective in June 2021, the Company’s matching contributions under the Plan were reinstated.

(15) Related Party Transactions

There were no material related party transactions for the six months ended June 30, 2021 or 2020.

(16) Commitments and Contingencies

(a) General

Estimated losses from loss contingencies are accrued by a charge to income when information available indicates that it is probable that an asset has been impaired or a liability has been incurred and the amount of the loss can be reasonably estimated.

If a loss contingency is not probable or reasonably estimable, disclosure of the loss contingency is made in the Condensed Consolidated Financial Statements when it is at least reasonably possible that a loss may be incurred and that the loss could be material.

27

ALPHA METALLURGICAL RESOURCES, INC. AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements

(Unaudited, amounts in thousands except share and per share data)

(b) Commitments and Contingencies

Commitments

The Company leases coal mining and other equipment under long-term financing and operating leases with varying terms. In addition, the Company leases mineral interests and surface rights from landowners under various terms and royalty rates.

Other Commitments

As of June 30, 2021, the Company has obligations under certain coal transportation agreements that contain minimum quantities to be shipped during contract periods from 2021 through 2022 with estimated obligations based on remaining tons to be shipped totaling $32,940 in 2022. The Company also has obligations under certain coal purchase agreements that contain minimum quantities to be purchased in the remainder of 2021 totaling an estimated $33,477, which includes an estimated $3,230 related to contractually committed fixed priced tons from vendors with historical performance resulting in less than 20% of the committed tonnage being delivered.

Contingencies

Extensive regulation of the impacts of mining on the environment and of maintaining workplace safety has had, and is expected to continue to have, a significant effect on the Company’s costs of production and results of operations. Further regulations, legislation or litigation in these areas may also cause the Company’s sales or profitability to decline by increasing costs or by hindering the Company’s ability to continue mining at existing operations or to permit new operations.

During the normal course of business, contract-related matters arise between the Company and its customers. When a loss related to such matters is considered probable and can reasonably be estimated, the Company records a liability.

As of June 30, 2021, per terms of the Cumberland Back-to-Back Coal Supply Agreements, the Company is required to purchase and sell 1,226 and 2,615 tons of coal in the remainder of 2021 and 2022 totaling $47,803 and $101,990, respectively. For the three and six months ended June 30, 2021, the Company purchased and sold 760 and 1,460 tons, respectively, totaling $29,487 and $56,553, respectively, under the Cumberland Back-to-Back Coal Supply Agreements. Cumberland Back-to-Back Coal Supply Agreements are scheduled to be fully performed by December 31, 2022.

Future Federal Income Tax Refunds

As of June 30, 2021, the Company has recorded $64,160 of current federal income tax receivable and associated interest receivable of $5,385 related to a net operating loss (“NOL”) carryback claim. Because the federal government was a creditor in the Alpha Natural Resources, Inc. bankruptcy proceedings, it is possible that the federal government could withhold some or all of the tax refund attributable to the NOL carryback claim and assert a right to set off the tax refund and associated interest receivable against its prepetition bankruptcy claims.

(c) Guarantees and Financial Instruments with Off-Balance Sheet Risk

In the normal course of business, the Company is a party to certain guarantees and financial instruments with off-balance sheet risk, such as bank letters of credit, performance or surety bonds, and other guarantees and indemnities related to the obligations of affiliated entities which are not reflected in the Company’s Condensed Consolidated Balance Sheets. However, the underlying liabilities that they secure, such as asset retirement obligations, workers’ compensation liabilities, and royalty obligations, are reflected in the Company’s Condensed Consolidated Balance Sheets.

The Company is required to provide financial assurance in order to perform the post-mining reclamation required by its mining permits, pay workers’ compensation claims under workers’ compensation laws in various states, pay federal black lung benefits, and perform certain other obligations. In order to provide the required financial assurance, the Company generally uses surety bonds for post-mining reclamation and workers’ compensation obligations. The Company can also use bank letters of credit to collateralize certain obligations.

As of June 30, 2021, the Company had $128,752 letters of credit outstanding under the Amended and Restated Asset-Based Revolving Credit Agreement. Additionally, as of June 30, 2021, the Company had $613 letters of credit outstanding

28

ALPHA METALLURGICAL RESOURCES, INC. AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements

(Unaudited, amounts in thousands except share and per share data)

under the Credit and Security Agreement dated June 30, 2017, and related amendments, between ANR, Inc. and First Tennessee Bank National Association. On March 31, 2021, the Amended and Restated Letter of Credit Agreement dated November 9, 2018 between ANR, Inc. and Citibank, N.A. was terminated.

As of June 30, 2021, the Company had outstanding surety bonds with a total face amount of $211,694 to secure various obligations and commitments, including $30 attributable to discontinued operations. To secure the Company’s reclamation-related obligations, the Company has $42,211 of collateral supporting these obligations as of June 30, 2021.

The Company meets frequently with its surety providers and has discussions with certain providers regarding the extent of and the terms of their participation in the program. These discussions may cause the Company to shift surety bonds between providers or to alter the terms of their participation in our program. To the extent that surety bonds become unavailable or the Company’s surety bond providers require additional collateral, the Company would seek to secure its obligations with letters of credit, cash deposits or other suitable forms of collateral. The Company’s failure to maintain, or inability to acquire, surety bonds or to provide a suitable alternative would have a material adverse effect on its liquidity. These failures could result from a variety of factors including lack of availability, higher cost or unfavorable market terms of new surety bonds, and the exercise by third-party surety bond issuers of their right to refuse to renew the surety.

Amounts included in restricted cash represent cash deposits primarily invested in interest bearing accounts that are restricted as to withdrawal as required by certain agreements entered into by the Company and provide collateral to secure the following obligations which have been written on the Company’s behalf:

	June 30, 2021		December 31, 2020
Workers' compensation and black lung obligations	$	63,096	$	69,725
Reclamation-related obligations	6,989		8,445
Financial payments and other performance obligations	22,673		17,863
Contingent revenue obligation escrow	3,794		9,311
Total restricted cash	96,552		105,344
Less current portion (1)	(3,794)		(9,311)
Restricted cash, net of current portion	$	92,758	$	96,033

(1) Included within prepaid expenses and other current assets on the Company’s Condensed Consolidated Balance Sheets.

Restricted investments consist of Federal Deposit Insurance Company (“FDIC”) insured certificates of deposit, mutual funds, and U.S. treasury bills that are restricted as to withdrawal as required by certain agreements entered into by the Company and provide collateral to secure the following obligations which have been written on the Company’s behalf:

	June 30, 2021		December 31, 2020
Workers' compensation obligations	$	210	$	51
Reclamation-related obligations	29,195		22,233
Financial payments and other performance obligations	2,037		1,484
Total restricted investments (1), (2)	$	31,442	$	23,768

(1) Included within other non-current assets on the Company’s Condensed Consolidated Balance Sheets.

(2) As of June 30, 2021 and December 31, 2020, respectively, $31,189 and $22,498 are classified as trading securities and $253 and $1,270 are classified as held-to-maturity securities.

Deposits represent cash deposits held at third parties as required by certain agreements entered into by the Company to provide cash collateral to secure the following obligations which have been written on the Company’s behalf:

29

ALPHA METALLURGICAL RESOURCES, INC. AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements

(Unaudited, amounts in thousands except share and per share data)

	June 30, 2021		December 31, 2020
Workers' compensation and black lung obligations	$	35	$	—
Reclamation-related obligations	6,027		25,633
Financial payments and other performance obligations	732		1,596
Other operating agreements	902		1,018
Total deposits (1)	$	7,696	$	28,247

(1) Included within prepaid expenses and other current assets and other non-current assets on the Company’s Condensed Consolidated Balance Sheets.

DCMWC Reauthorization Process

In July 2019, the U.S. Department of Labor (Division of Coal Mine Workers’ Compensation or “DCMWC”) began implementing a new authorization process for all self-insured coal mine operators. As requested by the DCMWC, the Company filed an application and supporting documentation for reauthorization to self-insure certain of its black lung obligations in October 2019. As a result of this application, the DCMWC notified the Company in a letter dated February 21, 2020 that the Company was reauthorized to self-insure certain of its black lung obligations for a period of one-year from February 21, 2020. The DCMWC reauthorization is contingent, however, upon the Company’s providing collateral of $65,700 to secure certain of its black lung obligations. This proposed collateral requirement is an increase from the approximate $2,600 in collateral that the Company currently provides to secure these self-insured black lung obligations. The reauthorization process provided the Company with the right to appeal the security determination in writing within 30 days of the date of the notification, which appeal period the DCMWC agreed to extend to May 22, 2020. The Company exercised this right of appeal in connection with the substantial increase in the amount of required collateral. However, there has been no substantive activity under the appeal since its filing. In February 2021, the U.S. Department of Labor withdrew its Federal Register notice seeking comments on its bulletin describing its new method of calculating collateral requirements. The Department removed the bulletin from its website in May 2021. If the Company’s appeal is unsuccessful, the Company may be required to provide additional letters of credit to receive the self-insurance reauthorization from the DCMWC or alternatively insure these black lung obligations through a third party provider that would likely also require the Company to provide collateral. Either of these outcomes could potentially reduce the Company’s liquidity.

(d) Legal Proceedings 

The Company is party to legal proceedings from time to time. These proceedings, as well as governmental examinations, could involve various business units and a variety of claims including, but not limited to, contract disputes, personal injury claims, property damage claims (including those resulting from blasting, trucking and flooding), environmental and safety issues, securities-related matters and employment matters. While some legal matters may specify the damages claimed by the plaintiffs, many seek an unquantified amount of damages. Even when the amount of damages claimed against the Company or its subsidiaries is stated, (i) the claimed amount may be exaggerated or unsupported; (ii) the claim may be based on a novel legal theory or involve a large number of parties; (iii) there may be uncertainty as to the likelihood of a class being certified or the ultimate size of the class; (iv) there may be uncertainty as to the outcome of pending appeals or motions; and/or (v) there may be significant factual issues to be resolved. As a result, if such legal matters arise in the future, the Company may be unable to estimate a range of possible loss for matters that have not yet progressed sufficiently through discovery and development of important factual information and legal issues. The Company records accruals based on an estimate of the ultimate outcome of these matters, but these estimates can be difficult to determine and involve significant judgment.

(17) Segment Information

The Company extracts, processes and markets met and thermal coal from deep and surface mines for sale to steel and coke producers, industrial customers, and electric utilities. The Company conducts mining operations only in the United States with mines in Central Appalachia (“CAPP”). The Company has one reportable segment: Met, which consists of five active mines and two preparation plants in Virginia, fourteen active mines and five preparation plants in West Virginia, as well as expenses associated with certain idled/closed mines. Prior to the first quarter of 2021, the Company had two reportable segments: CAPP - Met and CAPP - Thermal. As a result of the Company’s continued strategic focus on the production of metallurgical coal and the reduction of thermal mining operations, the Company re-evaluated its previous conclusions with respect to its segment

30

ALPHA METALLURGICAL RESOURCES, INC. AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements

(Unaudited, amounts in thousands except share and per share data)

reporting during the first quarter of 2021. To conform to the current period reportable segments presentation, the prior periods have been restated to reflect the change in reportable segments.

In addition to the one reportable segment, the All Other category includes general corporate overhead and corporate assets and liabilities, the former CAPP - Thermal operations consisting of one active mine and one preparation plant in West Virginia, and the elimination of certain intercompany activity, as well as expenses associated with certain idled/closed mines.

Reportable segment operating results are regularly reviewed by the Chief Operating Decision Maker (“CODM”), who is the Chief Executive Officer of the Company.

Segment operating results and capital expenditures for the three months ended June 30, 2021 and 2020 were as follows: 

	Three Months Ended June 30, 2021
	Met		All Other		Consolidated
Total revenues	$	377,937	$	17,338	$	395,275
Depreciation, depletion, and amortization	$	25,686	$	1,618	$	27,304
Amortization of acquired intangibles, net	$	2,635	$	(82)	$	2,553
Adjusted EBITDA	$	46,786	$	(6,869)	$	39,917
Capital expenditures	$	17,203	$	441	$	17,644

	Three Months Ended June 30, 2020
	Met		All Other		Consolidated
Total revenues	$	316,534	$	37,406	$	353,940
Depreciation, depletion, and amortization	$	38,779	$	8,290	$	47,069
Amortization of acquired intangibles, net	$	2,759	$	(878)	$	1,881
Adjusted EBITDA	$	17,518	$	(10,373)	$	7,145
Capital expenditures	$	27,647	$	3,011	$	30,658

Segment operating results and capital expenditures for the six months ended June 30, 2021 and 2020 were as follows: 

	Six Months Ended June 30, 2021
	Met		All Other		Consolidated
Total revenues	$	737,815	$	43,713	$	781,528
Depreciation, depletion, and amortization	$	52,222	$	3,520	$	55,742
Amortization of acquired intangibles, net	$	6,686	$	(264)	$	6,422
Adjusted EBITDA	$	79,368	$	(10,567)	$	68,801
Capital expenditures	$	37,526	$	513	$	38,039

	Six Months Ended June 30, 2020
	Met		All Other		Consolidated
Total revenues	$	679,293	$	77,451	$	756,744
Depreciation, depletion, and amortization	$	80,501	$	14,184	$	94,685
Amortization of acquired intangibles, net	$	5,340	$	(2,948)	$	2,392
Adjusted EBITDA	$	86,636	$	(22,994)	$	63,642
Capital expenditures	$	60,781	$	6,140	$	66,921

31

ALPHA METALLURGICAL RESOURCES, INC. AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements

(Unaudited, amounts in thousands except share and per share data)

The following tables present a reconciliation of net loss to Adjusted EBITDA for the three months ended June 30, 2021 and 2020:

	Three Months Ended June 30, 2021
	Met		All Other		Consolidated
Net loss from continuing operations	$	15,042	$	(33,632)	$	(18,590)
Interest expense	40		17,922		17,962
Interest income	—		(104)		(104)
Income tax expense	—		8		8
Depreciation, depletion and amortization	25,686		1,618		27,304
Non-cash stock compensation expense	6		973		979
Mark-to-market adjustment - acquisition-related obligations	—		3,157		3,157
Accretion on asset retirement obligations	3,377		3,271		6,648
Amortization of acquired intangibles, net	2,635		(82)		2,553
Adjusted EBITDA	$	46,786	$	(6,869)	$	39,917

	Three Months Ended June 30, 2020
	Met		All Other		Consolidated
Net loss from continuing operations	$	(27,097)	$	(54,649)	$	(81,746)
Interest expense	(377)		19,693		19,316
Interest income	(3)		(5,527)		(5,530)
Income tax expense	—		33		33
Depreciation, depletion and amortization	38,779		8,290		47,069
Non-cash stock compensation expense	(94)		1,138		1,044
Mark-to-market adjustment - acquisition-related obligations	—		(2,052)		(2,052)
Accretion on asset retirement obligations	3,551		3,018		6,569
Asset impairment and restructuring (1)	—		20,498		20,498
Loss on partial settlement of benefit obligations	—		63		63
Amortization of acquired intangibles, net	2,759		(878)		1,881
Adjusted EBITDA	$	17,518	$	(10,373)	$	7,145

(1) Refer to Note 8 for additional information on asset impairment and restructuring during the period.

32

ALPHA METALLURGICAL RESOURCES, INC. AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements

(Unaudited, amounts in thousands except share and per share data)

The following tables present a reconciliation of net loss to Adjusted EBITDA for the six months ended June 30, 2021 and 2020:

	Six Months Ended June 30, 2021
	Met		All Other		Consolidated
Net loss from continuing operations	$	13,604	$	(64,885)	$	(51,281)
Interest expense	83		35,869		35,952
Interest income	(5)		(263)		(268)
Income tax expense	—		3		3
Depreciation, depletion and amortization	52,222		3,520		55,742
Non-cash stock compensation expense	16		3,147		3,163
Mark-to-market adjustment - acquisition-related obligations	—		6,333		6,333
Accretion on asset retirement obligations	6,762		6,534		13,296
Asset impairment and restructuring (1)	—		(561)		(561)
Amortization of acquired intangibles, net	6,686		(264)		6,422
Adjusted EBITDA	$	79,368	$	(10,567)	$	68,801

(1) Refer to Note 8 for additional information on asset impairment and restructuring during the period.

	Six Months Ended June 30, 2020
	Met		All Other		Consolidated
Net loss from continuing operations	$	(38,682)	$	(79,250)	$	(117,932)
Interest expense	(1,306)		38,798		37,492
Interest income	(61)		(6,437)		(6,498)
Income tax benefit	—		(2,155)		(2,155)
Depreciation, depletion and amortization	80,501		14,184		94,685
Non-cash stock compensation expense	305		2,817		3,122
Mark-to-market adjustment - acquisition-related obligations	—		(17,049)		(17,049)
Accretion on asset retirement obligations	7,087		6,121		13,208
Asset impairment and restructuring (1)	32,951		21,256		54,207
Management restructuring costs (2)	501		439		940
Loss on partial settlement of benefit obligations	—		1,230		1,230
Amortization of acquired intangibles, net	5,340		(2,948)		2,392
Adjusted EBITDA	$	86,636	$	(22,994)	$	63,642

(1) Refer to Note 8 for additional information on asset impairment and restructuring during the period.

(2) Management restructuring costs are related to severance expense associated with senior management changes in the three months ended March 31, 2020.

No asset information has been disclosed as the CODM does not regularly review asset information by reportable segment.

The Company markets produced, processed and purchased coal to customers in the United States and in international markets, primarily India, Brazil, and Turkey. Revenue is tracked within the Company’s accounting records based on the product destination. Export coal revenues were the following:

33

ALPHA METALLURGICAL RESOURCES, INC. AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements

(Unaudited, amounts in thousands except share and per share data)

	Three Months Ended June 30,						Six Months Ended June 30,
	2021			2020			2021			2020
Total coal revenues	$	393,458		$	353,115		$	778,910		$	754,575
Export coal revenues	$	256,017		$	240,662		$	499,800		$	492,116
Export coal revenues as % of total coal revenues	65		%	68		%	64		%	65		%
Countries with export coal revenue exceeding 10% of total revenue	India			India, Turkey, Brazil			India, Brazil			India, Brazil

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GLOSSARY

Alpha. Alpha Metallurgical Resources, Inc. (the “Company”) (previously named Contura Energy, Inc.).

Ash. Impurities consisting of iron, alumina and other incombustible matter that are contained in coal. Since ash increases the weight of coal, it adds to the cost of handling and can affect the burning characteristics of coal.

British Thermal Unit or BTU. A measure of the thermal energy required to raise the temperature of one pound of pure liquid water one degree Fahrenheit at the temperature at which water has its greatest density (39 degrees Fahrenheit).

Central Appalachia or CAPP. Coal producing area in eastern Kentucky, Virginia, southern West Virginia and a portion of eastern Tennessee.

Coal seam. Coal deposits occur in layers. Each layer is called a “seam.”

Coke. A hard, dry carbon substance produced by heating coal to a very high temperature in the absence of air. Coke is used in the manufacture of iron and steel. Its production results in a number of useful byproducts.

Cumberland Back-to-Back Coal Supply Agreement. Certain agreements with Iron Senergy under which Iron Senergy will sell to the Company all of the coal that the Company is obligated to sell to customers under Cumberland coal supply agreements (“Cumberland CSAs”) which existed as of the transaction closing date but did not transfer to Iron Senergy at closing (each, a “Cumberland Back-to-Back Coal Supply Agreement”). Each Cumberland Back-to-Back Coal Supply Agreement has economic terms identical to, but offsetting, the related Cumberland CSA. If a Cumberland customer subsequently consents to assign a Cumberland CSA to Iron Senergy after closing, the related Cumberland CSA will immediately and automatically transfer to Iron Senergy and the related Cumberland Back-to-Back Coal Supply Agreements executed by the parties shall thereupon terminate as set forth therein.

ESG. Environmental, social and governance sustainability criteria.

Merger. Merger with ANR, Inc. and Alpha Natural Resources Holdings, Inc. completed on November 9, 2018.

Metallurgical coal. The various grades of coal suitable for carbonization to make coke for steel manufacture. Also known as “met” coal, its quality depends on four important criteria: volatility, which affects coke yield; the level of impurities including sulfur and ash, which affect coke quality; composition, which affects coke strength; and basic characteristics, which affect coke oven safety. Met coal typically has a particularly high BTU but low ash and sulfur content.

Northern Appalachia or NAPP. Coal producing area in Maryland, Ohio, Pennsylvania and northern West Virginia.

Operating Margin. Coal revenues less cost of coal sales.

Preparation plant. A preparation plant is a facility for crushing, sizing and washing coal to remove impurities and prepare it for use by a particular customer. The washing process has the added benefit of removing some of the coal’s sulfur content. A preparation plant is usually located on a mine site, although one plant may serve several mines.

Probable reserves. Reserves for which quantity and grade and/or quality are computed from information similar to that used for proven reserves, but the sites for inspection, sampling and measurement are farther apart or are otherwise less adequately spaced. The degree of assurance, although lower than that for proven reserves, is high enough to assume continuity between points of observation.

Productivity. As used in this report, refers to clean metric tons of coal produced per underground man hour worked, as published by the MSHA.

Proven reserves. Reserves for which quantity is computed from dimensions revealed in outcrops, trenches, workings or drill holes. Grade and/or quality are computed from the results of detailed sampling, and the sites for inspection, sampling and measurement are spaced so closely and the geologic character is so well defined that size, shape, depth and mineral content of reserves are well-established.

Reclamation. The process of restoring land and the environment to their original state following mining activities. The process commonly includes “recontouring” or reshaping the land to its approximate original appearance, restoring topsoil and

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planting native grass and ground covers. Reclamation operations are usually underway before the mining of a particular site is completed. Reclamation is closely regulated by both state and federal law.

Reserve. That part of a mineral deposit that could be economically and legally extracted or produced at the time of the reserve determination.

Roof. The stratum of rock or other mineral above a coal seam; the overhead surface of a coal working place.

Sulfur. One of the elements present in varying quantities in coal that contributes to environmental degradation when coal is burned. Sulfur dioxide is produced as a gaseous by-product of coal combustion.

Surface mine. A mine in which the coal lies near the surface and can be extracted by removing the covering layer of soil.

Thermal coal. Coal used by power plants and industrial steam boilers to produce electricity, steam or both. It generally is lower in BTU heat content and higher in volatile matter than metallurgical coal.

Tons. A “short” or net ton is equal to 2,000 pounds. A “long” or British ton is equal to 2,240 pounds; a “metric” ton (or “tonne”) is approximately 2,205 pounds. Tonnage amounts in this report are stated in short tons, unless otherwise indicated.

UMWA. United Mine Workers of America.

Underground mine. Also known as a “deep” mine. Usually located several hundred feet below the earth’s surface, an underground mine’s coal is removed mechanically and transferred by shuttle car and conveyor to the surface.

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Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

The following discussion and analysis provides a narrative of our results of operations and financial condition for the three and six months ended June 30, 2021 and 2020. The following discussion and analysis contains forward-looking statements and should be read in conjunction with our Condensed Consolidated Financial Statements and related notes included elsewhere in this Quarterly Report on Form 10-Q and our Consolidated Financial Statements and related notes and risk factors contained in our Annual Report on Form 10-K for the year ended December 31, 2020. See “Cautionary Note Regarding Forward Looking Statements” included elsewhere herein.

COVID-19 Pandemic

In the first quarter of 2020, the COVID-19 virus was declared a pandemic by the World Health Organization. The COVID-19 pandemic has had negative impacts on our business, results of operations, financial condition and cash flows. The full extent of the impact of the COVID-19 pandemic on our operational and financial performance will depend on certain developments, including the continued duration and spread of the outbreak, its impact on our customers and suppliers and the range of governmental and community reactions to the pandemic, which are still uncertain and still cannot be fully predicted. Our current view of the impacts of COVID-19 to our customers and suppliers is discussed below in the Market Overview section. We have not experienced significant supply chain disruptions due to the COVID-19 pandemic. We continue to monitor developments closely.

All of our coal mining operations have been classified as essential in the states in which we operate. Health and safety are core values of our company and are the foundation for how we manage every aspect of our business and we have therefore implemented policies, procedures and prevention measures to protect our employees during the COVID-19 pandemic. These policies, procedures and prevention measures include, but are not limited to, employee communications on COVID-19 monitoring and precautionary measures, enhanced cleaning and sterilization practices, limiting contractor access to our properties, limiting business travel, implementing social distancing measures by staggering shift times, limiting in-person meetings and meeting sizes, and remote work arrangements. We continue to evaluate these policies, procedures and precautionary measures for appropriate modifications as necessary.

Market Overview

The second quarter of 2021 brought continued increases in metallurgical coal market indices, with Atlantic High Volatile A prices starting at $147 per metric ton on April 1, 2021 and reaching a new high of $193 per metric ton on June 30, 2021. The first quarter volatility in the seaborne metallurgical coal market based on the Australian indices gave way toward more traditional equilibrium in relation to the Atlantic indices. While Chinese restrictions on Australian coal remain in place, pricing against the Australian indices has steadily increased over the course of the quarter.

The world manufacturing Purchasing Managers’ Index (“PMI”) was 55.4 in July, indicating growth remains strong in industrial production. July PMI for the U.S. reached 63.4, while Europe followed closely at 62.8. PMI scores for Brazil, India and China all registered above 50.0 for July as well.

According to the World Steel Association (“WSA”), June 2021 global crude steel production increased 11.6% to 167.9 million metric tons compared to the same period last year. China accounted for the majority of that production with 93.9 million metric tons in June 2021, an increase of 1.5% year over year. India’s 9.4 million metric tons produced represented an increase of 21.4% year over year. Regionally, North American and European crude steel production increased 45.2% and 34.7% respectively year over year.

The most recent weekly data from the American Iron and Steel Institute show capacity utilization at U.S. steel mills at 84.6%, the highest level recorded since 2008. This, along with sustained high steel pricing levels, illustrates the strength of the current North American steel industry landscape. In many cases, domestic steel producers have purchased incremental tons ahead of the upcoming fall negotiation period for next-year domestic contracts. In the seaborne market, tensions between China and Australia have persisted, and China has not yet lifted their import restrictions on Australian coal. As a result, markets are still feeling the effects of this conflict with tons moving into and out of new markets. Additional Alpha tons were shipped to China in the second quarter, and some of our recent shipments destined for China were larger than the shipments sold earlier in the year. The weakness displayed during the first quarter in the Australian indices relative to other benchmarks persisted into the beginning of the second quarter. However, it has recently given way to much stronger levels. The Australian Premium Low Volatile Coking Coal Index has jumped significantly in recent months to a range of $210 to $215 per metric ton, from a 2021 low point of $102 in early January. This improvement in pricing is yielding higher netbacks on Alpha’s tons priced against Australian indices.

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As the uneven recovery from the COVID-19 pandemic continues across the globe, we continue to evaluate market conditions for our metallurgical coal products. While forecasting long-term customer demand remains challenging due to the unpredictability of the pandemic, we continue to receive near-term interest in our metallurgical products.

On the thermal side, the API 2 index pricing has doubled against year-ago periods, presenting potential opportunities for seaborne thermal shipments on unsold tons. Increased coal fired generation levels have driven higher demand for thermal products both internationally and in the United States. Higher natural gas prices have contributed to increased thermal consumption, although this is likely a temporary circumstance due to the longer-range fuel switching and plant closures that have beleaguered CAPP thermal production. Our strategic focus continues to be on maximizing the remaining thermal tons from our Slabcamp mine before it ceases operation in 2022, at which time Alpha will have no remaining thermal operations.

Business Overview

We are a Tennessee-based mining company with operations across Virginia and West Virginia. With customers across the globe, high-quality reserves and significant port capacity, we are a leading U.S. supplier of metallurgical products for the steel industry. We operate high-quality, cost-competitive coal mines across the CAPP coal basin. As of June 30, 2021, our operations consisted of twenty active mines and eight coal preparation and load-out facilities, with approximately 3,300 employees. We produce, process, and sell met coal and thermal coal. We also sell coal produced by others, some of which is processed and/or blended with coal produced from our mines prior to resale, with the remainder purchased for resale. As of December 31, 2020, we had 623.5 million tons of reserves, including 445.0 million tons of proven reserves and 178.5 million tons of probable reserves.

For the three months ended June 30, 2021 and 2020, sales of met coal were 3.3 million tons and 3.1 million tons, respectively, and accounted for approximately 83% and 80%, respectively, of our coal sales volume. Sales of thermal coal were 0.7 million tons and 0.8 million tons, respectively, and accounted for approximately 17% and 20%, respectively, of our coal sales volume. For the six months ended June 30, 2021 and 2020, sales of met coal were 6.7 million tons and 6.3 million tons, respectively, and accounted for approximately 83% and 80%, respectively, of our coal sales volume. Sales of thermal coal were 1.4 million tons and 1.5 million tons, respectively, and accounted for approximately 17% and 20%, respectively, of our coal sales volume.

Our sales of met coal were made primarily to steel companies in the northeastern and midwestern regions of the United States and in several countries in Europe, Asia and the Americas. Our sales of thermal coal were made primarily to large utilities and industrial customers throughout the United States. For the three months ended June 30, 2021 and 2020 approximately 65% and 68%, respectively, of our total coal revenues were derived from coal sales made to customers outside the United States. For the six months ended June 30, 2021 and 2020 approximately 64% and 65%, respectively, of our total coal revenues were derived from coal sales made to customers outside the United States.

In addition, we generate other revenues from equipment sales, rentals, terminal and processing fees, coal and environmental analysis fees, royalties and the sale of natural gas. We also record freight and handling fulfillment revenue within coal revenues for freight and handling services provided in delivering coal to certain customers, which are a component of the contractual selling price.

As of June 30, 2021, we have one reportable segment: Met. To conform to the current period reportable segment presentation, the prior periods have been restated to reflect the change in reportable segments. Our Met segment operations consist of high-quality met coal mines, including Deep Mine 41, Road Fork 52, Black Eagle, and Lynn Branch. The coal produced by our Met segment operations is predominantly met coal with some amounts of thermal coal being produced as a byproduct of mining. In addition to the one reportable segment, our All Other category includes general corporate overhead and corporate assets and liabilities, our former CAPP - Thermal operations consisting of one active mine and one preparation plant in West Virginia, and the elimination of certain intercompany activity, as well as expenses associated with certain idled/closed mines. Refer to Note 17 to our Condensed Consolidated Financial Statements for additional disclosures on reportable segments, geographic areas, and export coal revenue information.

The disposition of our former NAPP operations during the fourth quarter of 2020 accelerated our strategic exit from thermal coal production to shift our focus toward met coal production. The former NAPP operations results of operations and financial position are reported as discontinued operations in the Condensed Consolidated Financial Statements. The historical information in the accompanying Notes to the Condensed Consolidated Financial Statements has been restated to reflect the effects of these former operations being reported as discontinued operations in the Condensed Consolidated Financial Statements. Refer to Note 2 for further information on discontinued operations. We are nearly sold out of thermal production

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for 2021. At our thermal coal operations, we have significantly reduced inventories at all locations and are matching our sales and production to make for an orderly transition to lower thermal coal production.

Factors Affecting Our Results of Operations

Sales Agreements. We manage our commodity price risk for coal sales through the use of coal supply agreements. As of July 26, 2021, we had sales commitments for 2021 as follows:

	Tons	% Priced		Average Realized Price per Ton
Met - Domestic				$87.86
Met - Export				$91.24
Met Total	13.5 million	79	%	$89.78
Thermal	1.5 million	98	%	$52.68
Met Segment	15.0 million	81	%	$85.30
All Other	1.5 million	100	%	$59.66

Due to the significant uncertainty in the worldwide coal markets due to COVID-19, there is risk of reduction in future shipments due to deferrals and utilization of force majeure clauses in customer contracts.

Realized Pricing. Our realized price per ton of coal is influenced by many factors that vary by region, including (i) coal quality, which includes energy (heat content), sulfur, ash, volatile matter and moisture content; (ii) differences in market conventions concerning transportation costs and volume measurement; and (iii) regional supply and demand.

Costs. Our results of operations are dependent upon our ability to maximize productivity and control costs. Our primary expenses are for operating supply costs, repair and maintenance expenditures, cost of purchased coal, royalties, current wages and benefits, freight and handling costs and taxes incurred in selling our coal. Principal goods and services we use in our operations include maintenance and repair parts and services, electricity, fuel, roof control and support items, explosives, tires, conveyance structure, ventilation supplies and lubricants. Our management strives to aggressively control costs and improve operating performance to mitigate external cost pressures. We experience volatility in operating costs related to fuel, explosives, steel, tires, contract services and healthcare, among others, and take measures to mitigate the increases in these costs at all operations. We have a centralized sourcing group for major supplier contract negotiation and administration, for the negotiation and purchase of major capital goods, and to support the business units. We promote competition between suppliers and seek to develop relationships with suppliers that focus on lowering our costs. We seek suppliers who identify and concentrate on implementing continuous improvement opportunities within their area of expertise. To the extent upward pressure on costs exceeds our ability to realize sales increases, or if we experience unanticipated operating or transportation difficulties, our operating margins would be negatively impacted. We may also experience difficult geologic conditions, delays in obtaining permits, labor shortages, unforeseen equipment problems, and unexpected shortages of critical materials such as tires, fuel and explosives that may result in adverse cost increases and limit our ability to produce at forecasted levels.

Results of Operations

Our results of operations for the three and six months ended June 30, 2021 and 2020 are discussed in these “Results of Operations” presented below.

Three Months Ended June 30, 2021 Compared to the Three Months Ended June 30, 2020

Revenues

The following table summarizes information about our revenues during the three months ended June 30, 2021 and 2020:

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	Three Months Ended June 30,				Increase (Decrease)
(In thousands, except for per ton data)	2021		2020		$ or Tons		%
Coal revenues	$	393,458	$	353,115	$	40,343	11.4	%
Other revenues	1,817		825		992		120.2	%
Total revenues	$	395,275	$	353,940	$	41,335	11.7	%
Tons sold	4,021		3,853		168		4.4	%

Coal revenues. Coal revenues increased $40.3 million, or 11.4%, for the three months ended June 30, 2021 compared to the prior year period. The increase was primarily due to an increase in tons sold and higher coal sales realization within our Met segment operations, as a result of an improved pricing environment during the current period. Increasing coal demand, resulting from improved economic activity, coupled with a limited supply response contributed to a rise in coal prices. Refer to the additional sections below for further detail on coal revenues for the three months ended June 30, 2021 compared to the prior year period.

Cost and Expenses

The following table summarizes information about our costs and expenses during the three months ended June 30, 2021 and 2020:

	Three Months Ended June 30,				Increase (Decrease)
(In thousands)	2021		2020		$		%
Cost of coal sales (exclusive of items shown separately below)	$	346,763	$	335,267	$	11,496	3.4	%
Depreciation, depletion and amortization	27,304		47,069		(19,765)		(42.0)	%
Accretion on asset retirement obligations	6,648		6,569		79		1.2	%
Amortization of acquired intangibles, net	2,553		1,881		672		35.7	%
Asset impairment and restructuring	—		20,498		(20,498)		(100.0)	%
Selling, general and administrative expenses (exclusive of depreciation, depletion and amortization shown separately above)	14,645		12,028		2,617		21.8	%
Total other operating (income) loss:
Mark-to-market adjustment for acquisition-related obligations	3,157		(2,052)		5,209		253.8	%
Other income	(3,608)		(45)		(3,563)		(7,917.8)	%
Total costs and expenses	$	397,462	$	421,215	$	(23,753)	(5.6)	%

Cost of coal sales. Cost of coal sales increased $11.5 million, or 3.4%, for the three months ended June 30, 2021 compared to the prior year period. The increase was primarily driven by an increase in tons sold in the current period relative to the prior year period, increased supplies and maintenance expense and salaries and wages expense, partially offset by inventory change during the current period.

Depreciation, depletion and amortization. Depreciation, depletion and amortization decreased $19.8 million, or 42.0%, for the three months ended June 30, 2021 compared to the prior year period. The decrease in depreciation, depletion and amortization was primarily related to asset disposals and asset impairments throughout the prior year.

Amortization of acquired intangibles, net. Amortization of acquired intangibles, net increased $0.7 million, or 35.7%, for the three months ended June 30, 2021 compared to the prior year period. The increase was primarily driven by the lower current period amortization related to below-market acquired coal supply agreements.

Asset impairment and restructuring. Asset impairment and restructuring decreased $20.5 million, or 100.0%, for the three months ended June 30, 2021 compared to the prior year period. For the three months ended June 30, 2020, asset impairment and restructuring includes long-lived asset impairment of $17.4 million and restructuring expense of $3.1 million. Refer to Note 8 for further information.

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Selling, general and administrative. Selling, general and administrative expenses increased $2.6 million, or 21.8%, for the three months ended June 30, 2021 compared to the prior year period. This increase in expense was primarily related to increases of $2.3 million in incentive pay, $0.2 million in wages and benefits expense, and $0.2 million in stock compensation expense, partially offset by a decrease of $0.2 million in professional fees.

Mark-to-market adjustment for acquisition-related obligations. The mark-to-market adjustment for acquisition-related obligations resulted in a decrease to income of $5.2 million for the three months ended June 30, 2021 compared to the prior year period. This decrease was related to the $3.2 million Contingent Revenue Obligation mark-to-market adjustment recorded during the three months ended June 30, 2021 due to changes in underlying fair value assumptions during the current period. Refer to Note 12 for Contingent Revenue Obligation fair value input assumptions.

Other income. Other income increased $3.6 million, or 7,917.8%, for the three months ended June 30, 2021 compared to the prior year period, primarily due to an increase in income on sale of assets in the current period.

Other (Expense) Income

The following table summarizes information about our other (expense) income during the three months ended June 30, 2021 and 2020:

	Three Months Ended June 30,				Increase (Decrease)
(In thousands)	2021		2020		$		%
Other (expense) income:
Interest expense	$	(17,962)	$	(19,316)	$	1,354	7.0	%
Interest income	104		5,530		(5,426)		(98.1)	%
Equity loss in affiliates	(384)		(1,047)		663		63.3	%
Miscellaneous income (loss), net	1,847		395		1,452		367.6	%
Total other expense, net	$	(16,395)	$	(14,438)	$	(1,957)	(13.6)	%

Interest income. Interest income decreased $5.4 million, or 98.1%, for the three months ended June 30, 2021 compared to the prior year period. The decrease was primarily due to the interest income recorded during the three months ended June 30, 2020 associated with the federal income tax interest receivable related to the net operating loss carryback claim. Refer to Note 16 for additional information on future federal income tax refunds.

Miscellaneous income (loss), net. Miscellaneous income (loss), net increased $1.5 million, or 367.6%, for the three months ended June 30, 2021 compared to the prior year period. The increase was primarily due to the net periodic benefit for pension obligations. Refer to Note 14 for additional information.

Income Tax Expense

The following table summarizes information about our income tax expense during the three months ended June 30, 2021 and 2020:

	Three Months Ended June 30,				Increase (Decrease)
(In thousands)	2021		2020		$		%
Income tax expense	$	(8)	$	(33)	$	25	75.8	%

Income taxes. Income tax expense of $8 thousand was recorded for the three months ended June 30, 2021 on a loss from continuing operations before income taxes of $18.6 million. The effective tax rate differs from the federal statutory rate of 21% primarily due to the increase in the valuation allowance.

Income tax expense of $33 thousand was recorded for the three months ended June 30, 2020 on a loss from continuing operations before income taxes of $81.7 million. The effective tax rate differs from the federal statutory rate of 21% primarily due to the increase in the valuation allowance. Refer to Note 13 for additional information.

Non-GAAP Financial Measures

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The discussion below contains “non-GAAP financial measures.” These are financial measures which either exclude or include amounts that are not excluded or included in the most directly comparable measures calculated and presented in accordance with generally accepted accounting principles in the United States (“U.S. GAAP” or “GAAP”). Specifically, we make use of the non-GAAP financial measures “Adjusted EBITDA,” “non-GAAP coal revenues,” “non-GAAP cost of coal sales,” “non-GAAP coal margin,” and “Adjusted cost of produced coal sold.” We use Adjusted EBITDA to measure the operating performance of our segments and allocate resources to the segments. Adjusted EBITDA does not purport to be an alternative to net income (loss) as a measure of operating performance or any other measure of operating results or liquidity presented in accordance with GAAP. We use non-GAAP coal revenues to present coal revenues generated, excluding freight and handling fulfillment revenues. Non-GAAP coal sales realization per ton for our operations is calculated as non-GAAP coal revenues divided by tons sold. We use non-GAAP cost of coal sales to adjust cost of coal sales to remove freight and handling costs, depreciation, depletion and amortization - production (excluding the depreciation, depletion and amortization related to selling, general and administrative functions), accretion on asset retirement obligations, amortization of acquired intangibles, net, and idled and closed mine costs. Non-GAAP cost of coal sales per ton for our operations is calculated as non-GAAP cost of coal sales divided by tons sold. Non-GAAP coal margin per ton for our coal operations is calculated as non-GAAP coal sales realization per ton for our coal operations less non-GAAP cost of coal sales per ton for our coal operations. We also use Adjusted cost of produced coal sold to distinguish the cost of captive produced coal from the effects of purchased coal. The presentation of these measures should not be considered in isolation, or as a substitute for analysis of our results as reported under GAAP.

Management uses non-GAAP financial measures to supplement GAAP results to provide a more complete understanding of the factors and trends affecting the business than GAAP results alone. The definition of these non-GAAP measures may be changed periodically by management to adjust for significant items important to an understanding of operating trends and to adjust for items that may not reflect the trend of future results by excluding transactions that are not indicative of our core operating performance. Furthermore, analogous measures are used by industry analysts to evaluate the Company’s operating performance. Because not all companies use identical calculations, the presentations of these measures may not be comparable to other similarly titled measures of other companies and can differ significantly from company to company depending on long-term strategic decisions regarding capital structure, the tax jurisdictions in which companies operate, and capital investments.

Included below are reconciliations of non-GAAP financial measures to GAAP financial measures.

The following tables summarize certain financial information relating to our coal operations for the three months ended June 30, 2021 and 2020:

	Three Months Ended June 30, 2021
(In thousands, except for per ton data)	Met		All Other		Consolidated
Coal revenues	$	376,839	$	16,619	$	393,458
Less: Freight and handling fulfillment revenues	(64,329)		(117)		(64,446)
Non-GAAP Coal revenues	$	312,510	$	16,502	$	329,012
Tons sold	3,748		273		4,021
Non-GAAP Coal sales realization per ton	$	83.38	$	60.45	$	81.82
Cost of coal sales (exclusive of items shown separately below)	$	331,239	$	15,524	$	346,763
Depreciation, depletion and amortization - production (1)	25,686		1,438		27,124
Accretion on asset retirement obligations	3,377		3,271		6,648
Amortization of acquired intangibles, net	2,635		(82)		2,553
Total Cost of coal sales	$	362,937	$	20,151	$	383,088
Less: Freight and handling costs	(64,329)		(117)		(64,446)
Less: Depreciation, depletion and amortization - production (1)	(25,686)		(1,438)		(27,124)
Less: Accretion on asset retirement obligations	(3,377)		(3,271)		(6,648)
Less: Amortization of acquired intangibles, net	(2,635)		82		(2,553)
Less: Idled and closed mine costs	(4,790)		(3,732)		(8,522)
Non-GAAP Cost of coal sales	$	262,120	$	11,675	$	273,795
Tons sold	3,748		273		4,021
Non-GAAP Cost of coal sales per ton	$	69.94	$	42.77	$	68.09

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(1) Depreciation, depletion and amortization - production excludes the depreciation, depletion and amortization related to selling, general and administrative functions.

	Three Months Ended June 30, 2021
(In thousands, except for per ton data)	Met		All Other		Consolidated
Coal revenues	$	376,839	$	16,619	$	393,458
Less: Total Cost of coal sales (per table above)	(362,937)		(20,151)		(383,088)
GAAP Coal margin	$	13,902	$	(3,532)	$	10,370
Tons sold	3,748		273		4,021
GAAP Coal margin per ton	$	3.71	$	(12.94)	$	2.58
GAAP Coal margin	$	13,902	$	(3,532)	$	10,370
Add: Depreciation, depletion and amortization - production (1)	25,686		1,438		27,124
Add: Accretion on asset retirement obligations	3,377		3,271		6,648
Add: Amortization of acquired intangibles, net	2,635		(82)		2,553
Add: Idled and closed mine costs	4,790		3,732		8,522
Non-GAAP Coal margin	$	50,390	$	4,827	$	55,217
Tons sold	3,748		273		4,021
Non-GAAP Coal margin per ton	$	13.44	$	17.68	$	13.73

(1) Depreciation, depletion and amortization - production excludes the depreciation, depletion and amortization related to selling, general and administrative functions.

	Three Months Ended June 30, 2020
(In thousands, except for per ton data)	Met		All Other		Consolidated
Coal revenues	$	316,319	$	36,796	$	353,115
Less: Freight and handling fulfillment revenues	(54,852)		(4,634)		(59,486)
Non-GAAP Coal revenues	$	261,467	$	32,162	$	293,629
Tons sold	3,204		649		3,853
Non-GAAP Coal sales realization per ton	$	81.61	$	49.56	$	76.21
Cost of coal sales (exclusive of items shown separately below)	$	297,266	$	38,001	$	335,267
Depreciation, depletion and amortization - production (1)	38,779		7,953		46,732
Accretion on asset retirement obligations	3,551		3,018		6,569
Amortization of acquired intangibles, net	2,759		(878)		1,881
Total Cost of coal sales	$	342,355	$	48,094	$	390,449
Less: Freight and handling costs	(54,852)		(4,634)		(59,486)
Less: Depreciation, depletion and amortization - production (1)	(38,779)		(7,953)		(46,732)
Less: Accretion on asset retirement obligations	(3,551)		(3,018)		(6,569)
Less: Amortization of acquired intangibles, net	(2,759)		878		(1,881)
Less: Idled and closed mine costs	(3,906)		(3,961)		(7,867)
Non-GAAP Cost of coal sales	$	238,508	$	29,406	$	267,914
Tons sold	3,204		649		3,853
Non-GAAP Cost of coal sales per ton	$	74.44	$	45.31	$	69.53

(1) Depreciation, depletion and amortization - production excludes the depreciation, depletion and amortization related to selling, general and administrative functions.

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	Three Months Ended June 30, 2020
(In thousands, except for per ton data)	Met		All Other		Consolidated
Coal revenues	$	316,319	$	36,796	$	353,115
Less: Total Cost of coal sales (per table above)	(342,355)		(48,094)		(390,449)
GAAP Coal margin	$	(26,036)	$	(11,298)	$	(37,334)
Tons sold	3,204		649		3,853
GAAP Coal margin per ton	$	(8.13)	$	(17.41)	$	(9.69)
GAAP Coal margin	$	(26,036)	$	(11,298)	$	(37,334)
Add: Depreciation, depletion and amortization - production (1)	38,779		7,953		46,732
Add: Accretion on asset retirement obligations	3,551		3,018		6,569
Add: Amortization of acquired intangibles, net	2,759		(878)		1,881
Add: Idled and closed mine costs	3,906		3,961		7,867
Non-GAAP Coal margin	$	22,959	$	2,756	$	25,715
Tons sold	3,204		649		3,853
Non-GAAP Coal margin per ton	$	7.17	$	4.25	$	6.67

(1) Depreciation, depletion and amortization - production excludes the depreciation, depletion and amortization related to selling, general and administrative functions.

	Three Months Ended June 30,				Increase (Decrease)
(In thousands, except for per ton data)	2021		2020		$		%
Met segment operations:
Tons sold	3,748		3,204		544		17.0	%
Non-GAAP Coal revenues	$	312,510	$	261,467	$	51,043	19.5	%
Non-GAAP Coal sales realization per ton	$	83.38	$	81.61	$	1.77	2.2	%
All Other category:
Tons sold	273		649		(376)		(57.9)	%
Non-GAAP Coal revenues	$	16,502	$	32,162	$	(15,660)	(48.7)	%
Non-GAAP Coal sales realization per ton	$	60.45	$	49.56	$	10.89	22.0	%

Non-GAAP Coal revenues. Met segment operations non-GAAP coal revenues increased $51.0 million, or 19.5%, for the three months ended June 30, 2021 compared to the prior year period. The increase was primarily due to an increase in tons sold and higher non-GAAP coal sales realization of 2.2% per ton resulting from an improved pricing environment compared to the prior year period.

All Other category non-GAAP coal revenues decreased $15.7 million, or 48.7%, for the three months ended June 30, 2021 compared to the prior year period primarily due to a decrease in tons sold, partially offset by an increase in realization per ton.

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	Three Months Ended June 30,				Increase (Decrease)
(In thousands, except for per ton data)	2021		2020		$		%
Met segment operations:
Non-GAAP Cost of coal sales	$	262,120	$	238,508	$	23,612	9.9	%
Non-GAAP Cost of coal sales per ton	$	69.94	$	74.44	$	(4.50)	(6.0)	%
Non-GAAP Coal margin per ton	$	13.44	$	7.17	$	6.27	87.4	%
All Other category:
Non-GAAP Cost of coal sales	$	11,675	$	29,406	$	(17,731)	(60.3)	%
Non-GAAP Cost of coal sales per ton	$	42.77	$	45.31	$	(2.54)	(5.6)	%
Non-GAAP Coal margin per ton	$	17.68	$	4.25	$	13.43	316.0	%

Non-GAAP Cost of coal sales. Met segment operations non-GAAP cost of coal sales increased $23.6 million, or 9.9%, for the three months ended June 30, 2021 compared to the prior year period. The increase was primarily driven by an increase in tons sold and increased supplies and maintenance expense and salaries and wages expense during the current period, partially offset by inventory change during the current period.

All Other category non-GAAP cost of coal sales decreased $17.7 million, or 60.3%, for the three months ended June 30, 2021 compared to the prior year period. The decrease was primarily driven by a decrease in tons sold, decreased supplies and maintenance expense, royalties and taxes, and inventory change during the current period, partially offset by increased salaries and wages expense.

Our non-GAAP cost of coal sales includes purchased coal costs. In the following tables, we calculate Adjusted cost of produced coal sold as non-GAAP cost of coal sales less purchased coal costs.

	Three Months Ended June 30, 2021
(In thousands, except for per ton data)	Met		All Other		Consolidated
Non-GAAP Cost of coal sales	$	262,120	$	11,675	$	273,795
Less: cost of purchased coal sold	(24,642)		—		(24,642)
Adjusted cost of produced coal sold	$	237,478	$	11,675	$	249,153
Produced tons sold	3,497		273		3,770
Adjusted cost of produced coal sold per ton (1)	$	67.91	$	42.77	$	66.09

(1) Cost of produced coal sold per ton for our operations is calculated as non-GAAP cost of produced coal sold divided by produced tons sold.

	Three Months Ended June 30, 2020
(In thousands, except for per ton data)	Met		All Other		Consolidated
Non-GAAP Cost of coal sales	$	238,508	$	29,406	$	267,914
Less: cost of purchased coal sold	(22,932)		(9)		(22,941)
Adjusted cost of produced coal sold	$	215,576	$	29,397	$	244,973
Produced tons sold	2,895		648		3,543
Adjusted cost of produced coal sold per ton (1)	$	74.46	$	45.37	$	69.14

(1) Cost of produced coal sold per ton for our operations is calculated as non-GAAP cost of produced coal sold divided by produced tons sold.

Adjusted EBITDA

Adjusted EBITDA is a non-GAAP financial measure that is presented as a supplemental measure and is not intended to replace financial performance or liquidity measures determined in accordance with GAAP. Moreover, this measure is not calculated identically by all companies and therefore may not be comparable to similarly titled measures used by other companies. Adjusted EBITDA is presented because management believes it is a useful indicator of the financial performance of our coal operations. The following tables present a reconciliation of net loss to Adjusted EBITDA for the three months ended June 30, 2021 and 2020:

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	Three Months Ended June 30, 2021
(In thousands)	Met		All Other		Consolidated
Net loss from continuing operations	$	15,042	$	(33,632)	$	(18,590)
Interest expense	40		17,922		17,962
Interest income	—		(104)		(104)
Income tax expense	—		8		8
Depreciation, depletion and amortization	25,686		1,618		27,304
Non-cash stock compensation expense	6		973		979
Mark-to-market adjustment - acquisition-related obligations	—		3,157		3,157
Accretion on asset retirement obligations	3,377		3,271		6,648
Amortization of acquired intangibles, net	2,635		(82)		2,553
Adjusted EBITDA	$	46,786	$	(6,869)	$	39,917

	Three Months Ended June 30, 2020
(In thousands)	Met		All Other		Consolidated
Net loss from continuing operations	$	(27,097)	$	(54,649)	$	(81,746)
Interest expense	(377)		19,693		19,316
Interest income	(3)		(5,527)		(5,530)
Income tax expense	—		33		33
Depreciation, depletion and amortization	38,779		8,290		47,069
Non-cash stock compensation expense	(94)		1,138		1,044
Mark-to-market adjustment - acquisition-related obligations	—		(2,052)		(2,052)
Accretion on asset retirement obligations	3,551		3,018		6,569
Asset impairment and restructuring (1)	—		20,498		20,498
Loss on partial settlement of benefit obligations	—		63		63
Amortization of acquired intangibles, net	2,759		(878)		1,881
Adjusted EBITDA	$	17,518	$	(10,373)	$	7,145

(1) Refer to Note 8 for additional information on asset impairment and restructuring during the period.

The following table summarizes Adjusted EBITDA for our Met segment operations and All Other category:

	Three Months Ended June 30,				Increase (Decrease)
(In thousands)	2021		2020		$		%
Adjusted EBITDA
Met segment operations	$	46,786	$	17,518	$	29,268	167.1	%
All Other category	(6,869)		(10,373)		3,504		33.8	%
Total	$	39,917	$	7,145	$	32,772	458.7	%

Met segment operations. Adjusted EBITDA increased $29.3 million, or 167.1%, for the three months ended June 30, 2021 compared to the prior year period. The increase in Adjusted EBITDA was primarily driven by increased coal margin and coal sales volumes.

All Other category. Adjusted EBITDA increased $3.5 million, or 33.8%, for the three months ended June 30, 2021 compared to the prior year period. The increase in Adjusted EBITDA was primarily driven by decreases in cost of coal sales and increases in coal realization per ton, partially offset by a decrease in tons sold.

Discontinued Operations

The former NAPP operations results of operations and financial position are reported as discontinued operations in the Condensed Consolidated Financial Statements. Refer to Note 2 for further information on discontinued operations. The following tables summarize certain financial information relating to the discontinued operating results which are reported within the All Other category that have been derived from our Condensed Consolidated Financial Statements for the three

46

months ended June 30, 2020:

(In thousands, except for per ton data)	Three Months Ended June 30, 2020 (2)
Coal revenues	$	57,499
Less: Freight and handling fulfillment revenues	(5,492)
Non-GAAP Coal revenues	$	52,007
Tons sold	1,294
Non-GAAP Coal sales realization per ton	$	40.19
Cost of coal sales (exclusive of items shown separately below)	$	47,843
Depreciation, depletion and amortization - production (1)	2,193
Accretion on asset retirement obligations	735
Amortization of acquired intangibles, net	215
Total Cost of coal sales	$	50,986
Less: Freight and handling costs	(5,492)
Less: Depreciation, depletion and amortization - production (1)	(2,193)
Less: Accretion on asset retirement obligations	(735)
Less: Amortization of acquired intangibles, net	(215)
Less: Idled and closed mine costs	56
Non-GAAP Cost of coal sales	$	42,407
Tons sold	1,294
Non-GAAP Cost of coal sales per ton	$	32.77

(1) Depreciation, depletion and amortization - production excludes the depreciation, depletion and amortization related to selling, general and administrative functions.

(2) Includes minor residual activity related to our former Powder River Basin (“PRB”) operations.

(In thousands, except for per ton data)	Three Months Ended June 30, 2020 (2)
Coal revenues	$	57,499
Less: Total Cost of coal sales (per table above)	(50,986)
GAAP Coal margin	$	6,513
Tons sold	1,294
GAAP Coal margin per ton	$	5.03
GAAP Coal margin	$	6,513
Add: Depreciation, depletion and amortization - production (1)	2,193
Add: Accretion on asset retirement obligations	735
Add: Amortization of acquired intangibles, net	215
Add: Idled and closed mine costs	(56)
Non-GAAP Coal margin	$	9,600
Tons sold	1,294
Non-GAAP Coal margin per ton	$	7.42

(1) Depreciation, depletion and amortization - production excludes the depreciation, depletion and amortization related to selling, general and administrative functions.

(2) Includes minor residual activity related to our former PRB operations.

Refer to Note 16 for disclosures on the Cumberland Back-to-Back Coal Supply Agreements.

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Six Months Ended June 30, 2021 Compared to the Six Months Ended June 30, 2020

Revenues

The following table summarizes information about our revenues during the six months ended June 30, 2021 and 2020:

	Six Months Ended June 30,				Increase (Decrease)
(In thousands, except for per ton data)	2021		2020		$ or Tons		%
Coal revenues	$	778,910	$	754,575	$	24,335	3.2	%
Other revenues	2,618		2,169		449		20.7	%
Total revenues	$	781,528	$	756,744	$	24,784	3.3	%
Tons sold	8,087		7,802		285		3.7	%

Coal revenues. Coal revenues increased $24.3 million, or 3.2%, for the six months ended June 30, 2021 compared to the prior year period. The increase was primarily due to an increase in tons sold relative to the prior year period. Refer to the additional sections below for further detail on coal revenues for the six months ended June 30, 2021 compared to the prior year period.

Cost and Expenses

The following table summarizes information about our costs and expenses during the six months ended June 30, 2021 and 2020:

	Six Months Ended June 30,				Increase (Decrease)
(In thousands)	2021		2020		$		%
Cost of coal sales (exclusive of items shown separately below)	$	694,191	$	669,487	$	24,704	3.7	%
Depreciation, depletion and amortization	55,742		94,685		(38,943)		(41.1)	%
Accretion on asset retirement obligations	13,296		13,208		88		0.7	%
Amortization of acquired intangibles, net	6,422		2,392		4,030		168.5	%
Asset impairment and restructuring	(561)		54,207		(54,768)		(101.0)	%
Selling, general and administrative expenses (exclusive of depreciation, depletion and amortization shown separately above)	29,627		27,509		2,118		7.7	%
Total other operating (income) loss:
Mark-to-market adjustment for acquisition-related obligations	6,333		(17,049)		23,382		137.1	%
Other income	(4,833)		(713)		(4,120)		(577.8)	%
Total costs and expenses	$	800,217	$	843,726	$	(43,509)	(5.2)	%

Cost of coal sales. Cost of coal sales increased $24.7 million, or 3.7%, for the six months ended June 30, 2021 compared to the prior year period. The increase was primarily driven by an increase in tons sold in the current period relative to the prior year period, increased supplies and maintenance expense, royalties and taxes, and salaries and wages expense, partially offset by decreased costs of purchased coal and inventory change during the current period.

Depreciation, depletion and amortization. Depreciation, depletion and amortization decreased $38.9 million, or 41.1%, for the six months ended June 30, 2021 compared to the prior year period. The decrease in depreciation, depletion and amortization was primarily due to asset disposals and asset impairments throughout the prior year.

Amortization of acquired intangibles, net. Amortization of acquired intangibles, net increased $4.0 million, or 168.5%, for the six months ended June 30, 2021 compared to the prior year period. The increase was primarily driven by the lower current period amortization related to below-market acquired coal supply agreements.

Asset impairment and restructuring. Asset impairment and restructuring decreased $54.8 million, or 101.0%, for the six months ended June 30, 2021 compared to the prior year period. For the six months ended June 30, 2021, asset impairment and

48

restructuring includes long-lived asset impairment of $0.1 million and restructuring expense of ($0.6) million. For the six months ended June 30, 2020, asset impairment and restructuring includes long-lived asset impairment of $51.1 million and restructuring expense of $3.1 million. Refer to Note 8 for further information.

Selling, general and administrative. Selling, general and administrative expenses increased $2.1 million, or 7.7%, for the six months ended June 30, 2021 compared to the prior year period. This increase in expense was primarily related to increases of $2.9 million in incentive pay and $0.9 million in stock compensation expense, partially offset by decreases of $0.7 million in severance expense, $0.5 million in professional fees, and $0.4 million in wages and benefits expense.

Mark-to-market adjustment for acquisition-related obligations. The mark-to-market adjustment for acquisition-related obligations resulted in a decrease to income of $23.4 million for the six months ended June 30, 2021 compared to the prior year period. This decrease was related to the $6.3 million Contingent Revenue Obligation mark-to-market adjustment recorded during the six months ended June 30, 2021 due to changes in underlying fair value assumptions during the current period. Refer to Note 12 for Contingent Revenue Obligation fair value input assumptions.

Other income. Other income increased $4.1 million, or 577.8%, for the six months ended June 30, 2021 compared to the prior year period, primarily due to an increase in income on sale of assets in the current period.

Other (Expense) Income

The following table summarizes information about our other (expense) income during the six months ended June 30, 2021 and 2020:

	Six Months Ended June 30,				Increase (Decrease)
(In thousands)	2021		2020		$		%
Other (expense) income:
Interest expense	$	(35,952)	$	(37,492)	$	1,540	4.1	%
Interest income	268		6,498		(6,230)		(95.9)	%
Equity loss in affiliates	(518)		(1,790)		1,272		71.1	%
Miscellaneous income (loss), net	3,613		(321)		3,934		1,225.5	%
Total other expense, net	$	(32,589)	$	(33,105)	$	516	1.6	%

Interest income. Interest income decreased $6.2 million, or 95.9%, for the six months ended June 30, 2021 compared to the prior year period. The decrease was primarily due to the interest income recorded during the three months ended June 30, 2020 associated with the federal income tax interest receivable related to the net operating loss carryback claim. Refer to Note 16 for additional information on future federal income tax refunds.

Miscellaneous income (loss), net. Miscellaneous income (loss), net increased $3.9 million, or 1,225.5%, for the six months ended June 30, 2021 compared to the prior year period. The increase was primarily due to the net periodic benefit for pension obligations. Refer to Note 14 for additional information.

Income Tax (Expense) Benefit

The following table summarizes information about our income tax (expense) benefit during the six months ended June 30, 2021 and 2020:

	Six Months Ended June 30,				Increase (Decrease)
(In thousands)	2021		2020		$		%
Income tax (expense) benefit	$	(3)	$	2,155	$	(2,158)	(100.1)	%

Income taxes. Income tax expense of $3 thousand was recorded for the six months ended June 30, 2021 on a loss from continuing operations before income taxes of $51.3 million. The effective tax rate differs from the federal statutory rate of 21% primarily due to the increase in the valuation allowance.

Income tax benefit of $2.2 million was recorded for the six months ended June 30, 2020 on a loss from continuing operations before income taxes of $120.1 million. The effective tax rate differs from the federal statutory rate of 21% primarily

49

due to the increase in the valuation allowance and the recording of a discrete tax benefit related to the refundability of previously sequestered AMT Credits. Refer to Note 13 for additional information.

Non-GAAP Financial Measures

Included below are reconciliations of non-GAAP financial measures to GAAP financial measures.

The following tables summarize certain financial information relating to our coal operations for the six months ended June 30, 2021 and 2020:

	Six Months Ended June 30, 2021
(In thousands, except for per ton data)	Met		All Other		Consolidated
Coal revenues	$	736,732	$	42,178	$	778,910
Less: Freight and handling fulfillment revenues	(124,340)		(486)		(124,826)
Non-GAAP Coal revenues	$	612,392	$	41,692	$	654,084
Tons sold	7,405		682		8,087
Non-GAAP Coal sales realization per ton	$	82.70	$	61.13	$	80.88
Cost of coal sales (exclusive of items shown separately below)	$	657,134	$	37,057	$	694,191
Depreciation, depletion and amortization - production (1)	52,222		3,161		55,383
Accretion on asset retirement obligations	6,762		6,534		13,296
Amortization of acquired intangibles, net	6,686		(264)		6,422
Total Cost of coal sales	$	722,804	$	46,488	$	769,292
Less: Freight and handling costs	(124,340)		(486)		(124,826)
Less: Depreciation, depletion and amortization - production (1)	(52,222)		(3,161)		(55,383)
Less: Accretion on asset retirement obligations	(6,762)		(6,534)		(13,296)
Less: Amortization of acquired intangibles, net	(6,686)		264		(6,422)
Less: Idled and closed mine costs	(8,393)		(7,288)		(15,681)
Non-GAAP Cost of coal sales	$	524,401	$	29,283	$	553,684
Tons sold	7,405		682		8,087
Non-GAAP Cost of coal sales per ton	$	70.82	$	42.94	$	68.47

(1) Depreciation, depletion and amortization - production excludes the depreciation, depletion and amortization related to selling, general and administrative functions.

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	Six Months Ended June 30, 2021
(In thousands, except for per ton data)	Met		All Other		Consolidated
Coal revenues	$	736,732	$	42,178	$	778,910
Less: Total Cost of coal sales (per table above)	(722,804)		(46,488)		(769,292)
GAAP Coal margin	$	13,928	$	(4,310)	$	9,618
Tons sold	7,405		682		8,087
GAAP Coal margin per ton	$	1.88	$	(6.32)	$	1.19
GAAP Coal margin	$	13,928	$	(4,310)	$	9,618
Add: Depreciation, depletion and amortization - production (1)	52,222		3,161		55,383
Add: Accretion on asset retirement obligations	6,762		6,534		13,296
Add: Amortization of acquired intangibles, net	6,686		(264)		6,422
Add: Idled and closed mine costs	8,393		7,288		15,681
Non-GAAP Coal margin	$	87,991	$	12,409	$	100,400
Tons sold	7,405		682		8,087
Non-GAAP Coal margin per ton	$	11.88	$	18.20	$	12.41

(1) Depreciation, depletion and amortization - production excludes the depreciation, depletion and amortization related to selling, general and administrative functions.

	Six Months Ended June 30, 2020
(In thousands, except for per ton data)	Met		All Other		Consolidated
Coal revenues	$	678,722	$	75,853	$	754,575
Less: Freight and handling fulfillment revenues	(108,516)		(8,377)		(116,893)
Non-GAAP Coal revenues	$	570,206	$	67,476	$	637,682
Tons sold	6,531		1,271		7,802
Non-GAAP Coal sales realization per ton	$	87.31	$	53.09	$	81.73
Cost of coal sales (exclusive of items shown separately below)	$	590,324	$	79,163	$	669,487
Depreciation, depletion and amortization - production (1)	80,501		13,493		93,994
Accretion on asset retirement obligations	7,087		6,121		13,208
Amortization of acquired intangibles, net	5,340		(2,948)		2,392
Total Cost of coal sales	$	683,252	$	95,829	$	779,081
Less: Freight and handling costs	(108,516)		(8,377)		(116,893)
Less: Depreciation, depletion and amortization - production (1)	(80,501)		(13,493)		(93,994)
Less: Accretion on asset retirement obligations	(7,087)		(6,121)		(13,208)
Less: Amortization of acquired intangibles, net	(5,340)		2,948		(2,392)
Less: Idled and closed mine costs	(8,063)		(8,323)		(16,386)
Non-GAAP Cost of coal sales	$	473,745	$	62,463	$	536,208
Tons sold	6,531		1,271		7,802
Non-GAAP Cost of coal sales per ton	$	72.54	$	49.14	$	68.73

(1) Depreciation, depletion and amortization - production excludes the depreciation, depletion and amortization related to selling, general and administrative functions.

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	Six Months Ended June 30, 2020
(In thousands, except for per ton data)	Met		All Other		Consolidated
Coal revenues	$	678,722	$	75,853	$	754,575
Less: Total Cost of coal sales (per table above)	(683,252)		(95,829)		(779,081)
GAAP Coal margin	$	(4,530)	$	(19,976)	$	(24,506)
Tons sold	6,531		1,271		7,802
GAAP Coal margin per ton	$	(0.69)	$	(15.72)	$	(3.14)
GAAP Coal margin	$	(4,530)	$	(19,976)	$	(24,506)
Add: Depreciation, depletion and amortization - production (1)	80,501		13,493		93,994
Add: Accretion on asset retirement obligations	7,087		6,121		13,208
Add: Amortization of acquired intangibles, net	5,340		(2,948)		2,392
Add: Idled and closed mine costs	8,063		8,323		16,386
Non-GAAP Coal margin	$	96,461	$	5,013	$	101,474
Tons sold	6,531		1,271		7,802
Non-GAAP Coal margin per ton	$	14.77	$	3.94	$	13.01

(1) Depreciation, depletion and amortization - production excludes the depreciation, depletion and amortization related to selling, general and administrative functions.

	Six Months Ended June 30,				Increase (Decrease)
(In thousands, except for per ton data)	2021		2020		$		%
Met segment operations:
Tons sold	7,405		6,531		874		13.4	%
Non-GAAP Coal revenues	$	612,392	$	570,206	$	42,186	7.4	%
Non-GAAP Coal sales realization per ton	$	82.70	$	87.31	$	(4.61)	(5.3)	%
All Other category:
Tons sold	682		1,271		(589)		(46.3)	%
Non-GAAP Coal revenues	$	41,692	$	67,476	$	(25,784)	(38.2)	%
Non-GAAP Coal sales realization per ton	$	61.13	$	53.09	$	8.04	15.1	%

Non-GAAP Coal revenues. Met segment operations non-GAAP coal revenues increased $42.2 million, or 7.4%, for the six months ended June 30, 2021 compared to the prior year period. The increase was primarily due to an increase in tons sold.

All Other category non-GAAP coal revenues decreased $25.8 million, or 38.2%, for the six months ended June 30, 2021 compared to the prior year period primarily due to a decrease in tons sold.

	Six Months Ended June 30,				Increase (Decrease)
(In thousands, except for per ton data)	2021		2020		$		%
Met segment operations:
Non-GAAP Cost of coal sales	$	524,401	$	473,745	$	50,656	10.7	%
Non-GAAP Cost of coal sales per ton	$	70.82	$	72.54	$	(1.72)	(2.4)	%
Non-GAAP Coal margin per ton	$	11.88	$	14.77	$	(2.89)	(19.6)	%
All Other category:
Non-GAAP Cost of coal sales	$	29,283	$	62,463	$	(33,180)	(53.1)	%
Non-GAAP Cost of coal sales per ton	$	42.94	$	49.14	$	(6.20)	(12.6)	%
Non-GAAP Coal margin per ton	$	18.20	$	3.94	$	14.26	361.9	%

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Non-GAAP Cost of coal sales. Met segment operations non-GAAP cost of coal sales increased $50.7 million, or 10.7%, for the six months ended June 30, 2021 compared to the prior year period. The increase was primarily driven by an increase in tons sold in the current period relative to the prior year period, increased supplies and maintenance expense, royalties and taxes, and salaries and wages expense, partially offset by decreased costs of purchased coal and inventory change during the current period.

All Other category non-GAAP cost of coal sales decreased $33.2 million, or 53.1%, for the six months ended June 30, 2021 compared to the prior year period. The decrease was primarily driven by a decrease in tons sold, decreased supplies and maintenance expense and salaries and wages expense, partially offset by inventory change during the current period.

Our non-GAAP cost of coal sales includes purchased coal costs. In the following tables, we calculate Adjusted cost of produced coal sold as non-GAAP cost of coal sales less purchased coal costs.

	Six Months Ended June 30, 2021
(In thousands, except for per ton data)	Met		All Other		Consolidated
Non-GAAP Cost of coal sales	$	524,401	$	29,283	$	553,684
Less: cost of purchased coal sold	(42,906)		—		(42,906)
Adjusted cost of produced coal sold	$	481,495	$	29,283	$	510,778
Produced tons sold	6,921		682		7,603
Adjusted cost of produced coal sold per ton (1)	$	69.57	$	42.94	$	67.18

(1) Cost of produced coal sold per ton for our operations is calculated as non-GAAP cost of produced coal sold divided by produced tons sold.

	Six Months Ended June 30, 2020
(In thousands, except for per ton data)	Met		All Other		Consolidated
Non-GAAP Cost of coal sales	$	473,745	$	62,463	$	536,208
Less: cost of purchased coal sold	(53,266)		(902)		(54,168)
Adjusted cost of produced coal sold	$	420,479	$	61,561	$	482,040
Produced tons sold	5,859		1,258		7,117
Adjusted cost of produced coal sold per ton (1)	$	71.77	$	48.94	$	67.73

(1) Cost of produced coal sold per ton for our operations is calculated as non-GAAP cost of produced coal sold divided by produced tons sold.

Adjusted EBITDA

The following tables present a reconciliation of net loss to Adjusted EBITDA for the six months ended June 30, 2021 and 2020:

	Six Months Ended June 30, 2021
(In thousands)	Met		All Other		Consolidated
Net loss from continuing operations	$	13,604	$	(64,885)	$	(51,281)
Interest expense	83		35,869		35,952
Interest income	(5)		(263)		(268)
Income tax expense	—		3		3
Depreciation, depletion and amortization	52,222		3,520		55,742
Non-cash stock compensation expense	16		3,147		3,163
Mark-to-market adjustment - acquisition-related obligations	—		6,333		6,333
Accretion on asset retirement obligations	6,762		6,534		13,296
Asset impairment and restructuring (1)	—		(561)		(561)
Amortization of acquired intangibles, net	6,686		(264)		6,422
Adjusted EBITDA	$	79,368	$	(10,567)	$	68,801

(1) Refer to Note 8 for additional information on asset impairment and restructuring during the period.

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	Six Months Ended June 30, 2020
(In thousands)	Met		All Other		Consolidated
Net loss from continuing operations	$	(38,682)	$	(79,250)	$	(117,932)
Interest expense	(1,306)		38,798		37,492
Interest income	(61)		(6,437)		(6,498)
Income tax benefit	—		(2,155)		(2,155)
Depreciation, depletion and amortization	80,501		14,184		94,685
Non-cash stock compensation expense	305		2,817		3,122
Mark-to-market adjustment - acquisition-related obligations	—		(17,049)		(17,049)
Accretion on asset retirement obligations	7,087		6,121		13,208
Asset impairment and restructuring (1)	32,951		21,256		54,207
Management restructuring costs (2)	501		439		940
Loss on partial settlement of benefit obligations	—		1,230		1,230
Amortization of acquired intangibles, net	5,340		(2,948)		2,392
Adjusted EBITDA	$	86,636	$	(22,994)	$	63,642

(1) Refer to Note 8 for additional information on asset impairment and restructuring during the period.

(2) Management restructuring costs are related to severance expense associated with senior management changes in the three months ended March 31, 2020.

The following table summarizes Adjusted EBITDA for our Met segment operations and All Other category:

	Six Months Ended June 30,				Increase (Decrease)
(In thousands)	2021		2020		$		%
Adjusted EBITDA
Met operations	$	79,368	$	86,636	$	(7,268)	(8.4)	%
All Other	(10,567)		(22,994)		12,427		54.0	%
Total	$	68,801	$	63,642	$	5,159	8.1	%

Met segment operations. Adjusted EBITDA decreased $7.3 million, or 8.4%, for the six months ended June 30, 2021 compared to the prior year period. The decrease in Adjusted EBITDA was primarily driven by decreased non-GAAP coal sales realization per ton of $4.61, or 5.3%, relative to the prior period, due to a weaker pricing environment as Australian hard coking coal indices remained weak throughout the first quarter of 2021, negatively impacting our Met segment export realization on contracts tied to Australian indices, partially offset by the improved pricing in the second quarter of 2021.

All Other category. Adjusted EBITDA increased $12.4 million, or 54.0%, for the six months ended June 30, 2021 compared to the prior year period. The increase in Adjusted EBITDA was primarily driven by decreases in cost of coal sales and increases in sales realization per ton, partially offset by a decrease in tons sold.

Discontinued Operations

The former NAPP operations results of operations and financial position are reported as discontinued operations in the Condensed Consolidated Financial Statements. Refer to Note 2 for further information on discontinued operations. The following tables summarize certain financial information relating to the discontinued operating results which are reported within the All Other category that have been derived from our Condensed Consolidated Financial Statements for the six months ended June 30, 2020:

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(In thousands, except for per ton data)	Six Months Ended June 30, 2020 (2)
Coal revenues	$	124,406
Less: Freight and handling fulfillment revenues	(7,838)
Non-GAAP Coal revenues	$	116,568
Tons sold	2,802
Non-GAAP Coal sales realization per ton	$	41.60
Cost of coal sales (exclusive of items shown separately below)	$	110,265
Depreciation, depletion and amortization - production (1)	9,042
Accretion on asset retirement obligations	1,471
Amortization of acquired intangibles, net	569
Total Cost of coal sales	$	121,347
Less: Freight and handling costs	(7,838)
Less: Depreciation, depletion and amortization - production (1)	(9,042)
Less: Accretion on asset retirement obligations	(1,471)
Less: Amortization of acquired intangibles, net	(569)
Less: Idled and closed mine costs	(1,481)
Non-GAAP Cost of coal sales	$	100,946
Tons sold	2,802
Non-GAAP Cost of coal sales per ton	$	36.03

(1) Depreciation, depletion and amortization - production excludes the depreciation, depletion and amortization related to selling, general and administrative functions.

(2) Includes minor residual activity related to our former PRB operations.

(In thousands, except for per ton data)	Six Months Ended June 30, 2020 (2)
Coal revenues	$	124,406
Less: Total Cost of coal sales (per table above)	(121,347)
GAAP Coal margin	$	3,059
Tons sold	2,802
GAAP Coal margin per ton	$	1.09
GAAP Coal margin	$	3,059
Add: Depreciation, depletion and amortization - production (1)	9,042
Add: Accretion on asset retirement obligations	1,471
Add: Amortization of acquired intangibles, net	569
Add: Idled and closed mine costs	1,481
Non-GAAP Coal margin	$	15,622
Tons sold	2,802
Non-GAAP Coal margin per ton	$	5.58

(1) Depreciation, depletion and amortization - production excludes the depreciation, depletion and amortization related to selling, general and administrative functions.

(2) Includes minor residual activity related to our former PRB operations.

Refer to Note 16 for disclosures on the Cumberland Back-to-Back Coal Supply Agreements.

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Liquidity and Capital Resources

Our primary liquidity and capital resource requirements stem from the cost of our coal production and purchases, our capital expenditures, our debt service, our reclamation obligations, our regulatory costs and settlements and associated costs. Our primary sources of liquidity are derived from sales of coal, our debt financing, and miscellaneous revenues.

We believe that cash on hand, cash generated from our operations, and expected tax refunds will be sufficient to meet our working capital requirements, anticipated capital expenditures, debt service requirements, acquisition-related obligations, and reclamation obligations for the next 12 months. We rely on a number of assumptions in budgeting for our future activities. These include the costs for mine development to sustain capacity of our operating mines, our cash flows from operations, effects of regulation and taxes by governmental agencies, mining technology improvements and reclamation costs. These assumptions are inherently subject to significant business, political, economic, regulatory, environmental and competitive uncertainties, contingencies and risks, all of which are difficult to predict and many of which are beyond our control. Increased scrutiny of ESG matters specific to the coal sector could negatively influence our ability to raise capital in the future and result in a reduced number of surety and insurance providers. We may need to raise additional funds if market conditions deteriorate, and we may not be able to do so in a timely fashion, on terms acceptable to us, or at all; or one or more of our assumptions prove to be incorrect or if we choose to expand our acquisition, exploration, appraisal, or development efforts or any other activity more rapidly than we presently anticipate. Additionally, we may elect to raise additional funds before we need them if the conditions for raising capital are favorable. We may seek to sell equity or debt securities or obtain additional bank credit facilities. The sale of equity securities could result in dilution to our stockholders. The incurrence of additional indebtedness could result in increased fixed obligations and additional covenants that could restrict our operations.

Liquidity and Cash Collateral

At June 30, 2021, we had total liquidity of $132.3 million, including cash and cash equivalents of $72.3 million and $60.0 million of unused commitments available under the Amended and Restated Asset-Based Revolving Credit Agreement (the “ABL Facility”), subject to limitations described therein. Availability under the ABL Facility is calculated on a monthly basis and fluctuates based on qualifying amounts of coal inventory and trade accounts receivable (the “Borrowing Base”) and the facility's covenant limitations related to our Fixed Charge Coverage Ratio (refer to Analysis of Material Debt Covenants below). In accordance with terms of the ABL Facility, we may be required to cash collateralize the ABL Facility to the extent outstanding borrowings and letters of credit under the ABL Facility exceed the Borrowing Base after considering covenant limitations.

To secure our obligations under certain worker’s compensation, black lung and reclamation-related obligations and financial payments and other performance obligations, we are required to provide cash collateral. At June 30, 2021, we had cash collateral in the amounts of $92.8 million, $31.4 million, and $6.8 million classified as long-term restricted cash, long-term restricted investments, and long-term deposits, respectively, on our Condensed Consolidated Balance Sheets. Future regulatory changes relating to these obligations could result in increased obligations, additional costs, or additional collateral requirements which could require greater use of alternative sources of funding for this purpose, which would reduce our liquidity. Refer to the DCMWC Reauthorization Process section below for information related to the new authorization process for self-insured coal mine operators being implemented by the U.S. Department of Labor (Division of Coal Mine Workers’ Compensation). Additionally, as of June 30, 2021, we had $3.8 million of short-term restricted cash held in escrow related to our contingent revenue obligation. Refer to Note 10 for further information regarding the contingent revenue obligation.

On July 26, 2021, we repaid in full the West Virginia allocation of the Lexington Coal Company note payable (“LCC Note Payable”) in the amount of $21.2 million. The final $7.7 million payment was originally due in July of 2022, but we negotiated the return of $14.0 million of surety collateral in exchange for early repayment, which allowed us to eliminate that portion of the debt a year early and at a lower net cash outflow than was previously expected in 2021. $2.3 million remains on the Kentucky allocation of the LCC Note Payable, which the Company expects will be paid in July of 2022.

Business Updates

On April 16, 2021, Moody’s Investors Service rated our Corporate Family Rating at Caa1, Senior Secured Bank Credit Facility Rating at Caa2/LGD4, and Speculative Grade Liquidity Rating at SGL-3. The rating outlook is stable. These issues bring potential liquidity risks for us, including the risks of declines in our stock value, declines in our cash and cash equivalents, less availability and higher costs of additional credit, and requests for additional collateral by surety providers.

The COVID-19 pandemic has had negative impacts on our business, results of operations, financial condition, and cash flows. The full extent of the impact of the COVID-19 pandemic on our operational and financial performance will depend on

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various developments, including the duration and spread of the outbreak, its impact on our customers and suppliers and the range of governmental and community reactions to the pandemic, which are still uncertain and still cannot be fully predicted.

We continually strive to enhance our capital structure and financial flexibility and reduce cash outflows from operations. As future opportunities arise, we will consider the possibility of refinancing, repayment or repurchase of outstanding debt and amendment of our credit facilities, and may consider the sale of other assets or businesses, and such other measures as we believe circumstances warrant. We may decide to pursue or not pursue these opportunities at any time. Access to additional funds from liquidity-generating transactions or other sources of external financing is subject to market conditions and certain limitations, including our credit rating and covenant restrictions in our credit facilities.

Income Taxes

As of June 30, 2021, we had recorded $64.2 million of current federal income tax receivable and associated interest receivable of $5.4 million related to an NOL carryback claim. Refer to Note 13 for further income taxes disclosures.

Pension Plans

As a result of the recent funding relief granted under the American Rescue Plan Act, estimated contributions requirements to the pension plans were reduced relative to our previous estimates. We expect to contribute $7.7 million to the pension plans in the remainder of 2021. Refer to Note 14 for further disclosures related to this obligation.

Discontinued Operations

Refer to Note 2 for disclosure information on discontinued operations.

DCMWC Reauthorization Process

In July 2019, the U.S. Department of Labor (Division of Coal Mine Workers’ Compensation or “DCMWC”) began implementing a new authorization process for all self-insured coal mine operators. As requested by DCMWC, we filed an application and supporting documentation for reauthorization to self-insure certain of our black lung obligations in October 2019. As a result of this application, the DCMWC notified us in a letter dated February 21, 2020 that we were reauthorized to self-insure certain of our black lung obligations for a period of one-year from February 21, 2020. The DCMWC reauthorization is contingent, however, upon us providing collateral of $65.7 million to secure certain of our black lung obligations. This collateral requirement, which the DCMWC advises represents 70% of our estimated future liability according to the DCMWC’s estimation methodology, is an increase of approximately 2,400% from the approximately $2.6 million in collateral which we (previously by Alpha Natural Resources Inc. prior to the Merger) have provided since 2016 to secure these self-insured black lung obligations. Future liability has not previously been estimated by the DCMWC in connection with the reauthorization process but is now being considered as part of its new collateral-setting methodology.

The reauthorization process provided us with the right to appeal the security determination in writing within 30 days of the date of the notification, which appeal period the DCMWC agreed to extend to May 22, 2020, and we exercised this right of appeal. We strongly disagree with the DCMWC’s substantially higher collateral determination and the methodology through which the calculation was derived. However, there has been no substantive activity under the appeal since its filing. In February 2021, the U.S. Department of Labor withdrew its Federal Register notice seeking comments on its bulletin describing its new method of calculating collateral requirements. The Department removed the bulletin from its website in May 2021. If our appeal is unsuccessful, we may be required to provide additional letters of credit in order to receive self-insurance reauthorization from the DCMWC or insure these black lung obligations through a third party provider, which would likely also require us to provide collateral. Either of these outcomes would significantly reduce our liquidity.

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Cash Flows

Cash, cash equivalents, and restricted cash decreased by $75.7 million and increased by $4.4 million over the six months ended June 30, 2021 and 2020, respectively. The net change in cash, cash equivalents, and restricted cash was attributable to the following:

	Six Months Ended June 30,
	2021		2020
Cash flows (in thousands):
Net cash (used in) provided by operating activities	$	(25,451)	$	78,938
Net cash used in investing activities	(40,802)		(100,128)
Net cash (used in) provided by financing activities	(9,429)		25,598
Net (decrease) increase in cash and cash equivalents and restricted cash	$	(75,682)	$	4,408

Operating Activities

Net cash flows (used in) provided by operating activities consist of net loss adjusted for non-cash items. Net cash used in operating activities for the six months ended June 30, 2021 was $25.5 million and was primarily attributable to net loss of $51.9 million adjusted for depreciation, depletion and amortization of $55.7 million, accretion on asset retirement obligations of $13.3 million, amortization of debt issuance costs and accretion of debt discount of $6.5 million, amortization of acquired intangibles, net of $6.4 million, and mark-to-market adjustment for acquisition-related obligations of $6.3 million, more than offset by the change in our operating assets and liabilities of $66.3 million.

Net cash provided by operating activities for the six months ended June 30, 2020 was $78.9 million and was primarily attributable to net loss of $278.1 million adjusted for asset impairment and restructuring of $217.9 million, depreciation, depletion and amortization of $103.7 million, deferred income taxes of $33.0 million, and accretion on asset retirement obligations of $14.7 million, partially offset by the change in our operating assets and liabilities of $22.7 million.

Investing Activities

Net cash used in investing activities for the six months ended June 30, 2021 was $40.8 million, primarily driven by capital expenditures of $38.0 million and purchases of investment securities of $15.5 million, partially offset by maturity of investment securities of $7.8 million and proceeds on disposal of assets of $6.8 million.

Net cash used in investing activities for the six months ended June 30, 2020 was $100.1 million, primarily driven by capital expenditures of $91.1 million and purchases of investment securities of $18.6 million, partially offset by maturity of investment securities of $10.7 million.

Financing Activities

Net cash used in financing activities for the six months ended June 30, 2021 was $9.4 million, primarily attributable to principal repayments of debt of $6.2 million.

Net cash provided by financing activities for the six months ended June 30, 2020 was $25.6 million, primarily attributable to proceeds from borrowings on debt of $57.5 million, partially offset by principal repayments of debt of $29.6 million.

Long-Term Debt

Refer to Note 9 for additional disclosures on long-term debt.

Analysis of Material Debt Covenants

We are in compliance with all covenants under the Credit Agreement and the Amended and Restated Asset-Based Revolving Credit Agreement, as of June 30, 2021. A breach of the covenants in the Credit Agreement or the Amended and Restated Asset-Based Revolving Credit Agreement could result in a default under the terms of such agreement, and the respective lenders could then elect to declare all amounts borrowed due and payable.

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Pursuant to the Amended and Restated Asset-Based Revolving Credit Agreement, during any Liquidity Period (capitalized terms as defined in the Amended and Restated Asset-Based Revolving Credit Agreement), our Fixed Charge Coverage Ratio cannot be less than 1.0 as of the last day of any Test Period, commencing with the Test Period ended immediately preceding the commencement of such Liquidity Period. The Fixed Charge Coverage Ratio is calculated as (a) Consolidated EBITDA of the Company and its Restricted Subsidiaries for such period, minus non-financed Capital Expenditures (including Capital Expenditures financed with the proceeds of any Loans) paid or payable currently in cash by the Company or any of its Subsidiaries for such period to (b) the Fixed Charges of the Company and its Restricted Subsidiaries during such period. As of June 30, 2021, we were not in a Liquidity Period.

Acquisition-Related Obligations

Refer to Note 10 for additional details and disclosures on acquisition-related obligations.

Off-Balance Sheet Arrangements

Refer to Note 16, part (c) for disclosures on off-balance sheet arrangements.

Other

As a regular part of our business, we review opportunities for, and engage in discussions and negotiations concerning, the acquisition or disposition of coal mining and related infrastructure assets and interests in coal mining companies, and acquisitions or dispositions of, or combinations or other strategic transactions involving companies with coal mining or other energy assets. When we believe that these opportunities are consistent with our strategic plans and our acquisition or disposition criteria, we will make bids or proposals and/or enter into letters of intent and other similar agreements. These bids or proposals, which may be binding or non-binding, are customarily subject to a variety of conditions and usually permit us to terminate the discussions and any related agreement if, among other things, we are not satisfied with the results of due diligence. Any acquisition opportunities we pursue could materially affect our liquidity and capital resources and may require us to incur indebtedness, seek equity capital or both. There can be no assurance that additional financing will be available on terms acceptable to us, or at all.

Contractual Obligations

Our contractual obligations are discussed in “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations” in our Annual Report on Form 10-K for the year ended December 31, 2020.

Our contractual obligations relating to transportation commitments increased during the six months ended June 30, 2021 primarily as a result of new agreements during the period. Additionally, our contractual obligations relating to coal purchase commitments decreased during the six months ended June 30, 2021 primarily as a result of fewer coal purchase agreements in the current period compared to the prior year period. The table below reflects these obligations as of June 30, 2021:

(in thousands)	Remainder of 2021		2022		2023		2024		2025		After 2025		Total
Transportation commitments	$	—	$	32,940	$	—	$	—	$	—	$	—	$	32,940
Coal purchase commitments (1)	$	33,477	$	—	$	—	$	—	$	—	$	—	$	33,477

(1) Includes an estimated $3.2 million related to contractually committed fixed priced tons from vendors with historical performance resulting in less than 20% of the committed tonnage being delivered.

We expect to spend between $88.0 million and $98.0 million on capital expenditures during 2021.

Critical Accounting Policies and Estimates

The preparation of financial statements in accordance with GAAP requires management to make estimates and assumptions that affect reported amounts of assets, liabilities, revenues and expenses, and related disclosure of contingent assets and liabilities. We base our estimates on historical experience and on various other factors and assumptions, including the current economic environment, that we believe are reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. We evaluate our estimates and assumptions on an ongoing basis and adjust such estimates and assumptions as facts and circumstances require. Foreign currency and energy markets, and fluctuations in demand for steel products have combined to increase the uncertainty inherent in such estimates and assumptions. As future events and their effects cannot be determined

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with precision, actual results may differ significantly from these estimates. Changes in these estimates resulting from continuing changes in the economic environment will be reflected in the financial statements in future periods.

Our critical accounting policies are discussed in “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations” in our Annual Report on Form 10-K for the year ended December 31, 2020. Our critical accounting policies remain unchanged at June 30, 2021. Refer to Note 1 for disclosures related to new accounting policies adopted.

Item 3. Quantitative and Qualitative Disclosures about Market Risk

Not required.

Item 4. Controls and Procedures

Evaluation of Disclosure Controls and Procedures

We maintain disclosure controls and procedures as that term is defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”) that are designed to ensure that information required to be disclosed by the Company in reports that it files or submits under the Exchange Act, is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms, and that such information is accumulated and communicated to our management, including our Chief Executive Officer (“CEO”) and our Chief Financial Officer (“CFO”), as appropriate, to allow timely decisions regarding required disclosures. Any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives. In accordance with Rule 13a-15(b) of the Exchange Act, we have evaluated, under the supervision of our CEO and our CFO, the effectiveness of disclosure controls and procedures as of June 30, 2021. Based on this evaluation, our CEO and our CFO concluded that our disclosure controls and procedures were effective as of June 30, 2021.

Changes in Internal Control Over Financial Reporting

There were no changes in our internal control over financial reporting (as defined in Rule 13a-15(f) under the Exchange Act) that occurred during the period covered by this Quarterly Report on Form 10-Q that have materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

Inherent Limitations on Effectiveness of Disclosure Controls and Procedures

Our CEO, our CFO and other members of management do not expect that our disclosure controls and procedures or our internal control over financial reporting will prevent all errors and all fraud. A control system, no matter how well designed and operated, can provide only reasonable, not absolute, assurance that the objectives of the control system are met. Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

Part II - Other Information

Item 1. Legal Proceedings

For a description of the Company’s legal proceedings, refer to Note 16, part (d), to the unaudited Condensed Consolidated Financial Statements included in Part I, Item 1 of this Quarterly Report on Form 10-Q, which is incorporated herein by reference.

Item 1A. Risk Factors

In addition to the other information set forth in this report, you should carefully consider the factors discussed in the “Item 1A. Risk Factors” section in the Company’s Annual Report on Form 10-K for the year ended December 31, 2020, together with the cautionary statement under the caption “Cautionary Note Regarding Forward Looking Statements” in this Quarterly Report on Form 10-Q. These described risks are not the only risks we face. Additional risks and uncertainties not currently known to us or that we currently deem to be immaterial also may materially adversely affect our business, financial condition and/or operating results.

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Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

The following table summarizes information about shares of common stock that were repurchased during the second quarter of 2021. 

	Total Number of Shares Purchased (1)	Average Price Paid per Share		Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs (2)	Approximate Dollar Value of Shares that May Yet Be Purchased Under the Plans or Programs (In thousands) (2),(3)
April 1, 2021 through April 30, 2021	—	$	—	—	$	67,552
May 1, 2021 through May 31, 2021	—	$	—	—	$	67,552
June 1, 2021 through June 30, 2021	—	$	—	—	$	67,552
	—			—	$	67,522

(1) Represents common shares repurchased from employees to satisfy the employees’ statutory tax withholdings upon the vesting of stock grants. Shares that are repurchased to satisfy the employees’ statutory tax withholdings are recorded in treasury stock at cost.

(2) The Company adopted a capital return program in 2019, including a stock repurchase plan which the Company suspended on October 1, 2019.

(3) We cannot estimate the number of shares that will be repurchased because decisions to purchase are subject to market and business conditions, levels of available liquidity, our cash needs, restrictions under agreements or obligations, legal or regulatory requirements or restrictions, and other relevant factors. This amount does not include $16 thousand of stock repurchase related fees.

There were no repurchases related to warrants during the current quarter.

Item 4. Mine Safety Disclosures

Information concerning mine safety violations or other regulatory matters required by Section 1503(a) of the Dodd-Frank Wall Street Reform and Consumer Protection Act and Item 104 of Regulation S-K is included in Exhibit 95 to this Quarterly Report on Form 10-Q.

Item 6. Exhibits

Refer to the Exhibit Index following the signature page to this Quarterly Report on Form 10-Q.

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SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

	ALPHA METALLURGICAL RESOURCES, INC.
Date: August 6, 2021	By:	/s/ Charles Andrew Eidson
	Name:	Charles Andrew Eidson
	Title:	President and Chief Financial Officer
		(Principal Financial Officer and Principal Accounting Officer)

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Exhibit Index

Exhibit No.	Description of Exhibit
3.1	Second Amended and Restated Certificate of Incorporation of Contura Energy, Inc. (Incorporated by reference to Exhibit 3.1 to the Registration Statement on Form S-4 of Contura Energy, Inc. (File No. 333-226953) filed on August 21, 2018)
3.2	Third Amended and Restated Bylaws of Contura Energy, Inc. (Incorporated by reference to Exhibit 3.2 to the Annual Report on Form 10-K of Contura Energy, Inc. (File No. 001-38735) filed on March 18, 2020)
10.1	Amendment, effective June 30, 2021, by and between Alpha Metallurgical Resources, Inc. and David J. Stetson, to the Amended and Restated Employment Agreement, dated as of January 26, 2021, between Contura Energy, Inc. (now known as Alpha Metallurgical Resources, Inc.) and David J. Stetson, filed on July 7, 2021 as Exhibit 10.1 to the Registrants Current Report on Form 8-K and incorporated herein by reference.
31*	Certifications Pursuant to Rule 13a-14(a) under the Securities Exchange Act of 1934, as adopted pursuant to §302 of the Sarbanes-Oxley Act of 2002
32**	Certifications Pursuant to 18 U.S.C. §1350, As Adopted Pursuant to §906 of the Sarbanes-Oxley Act of 2002
95*	Mine Safety Disclosure Exhibit
101*	The following financial information from Alpha Metallurgical Resources, Inc.'s Quarterly Report on Form 10-Q for the quarter ended June 30, 2021 formatted in Inline XBRL (Extensible Business Reporting Language) includes: (i) Condensed Consolidated Statements of Operations, (ii) Condensed Consolidated Statements of Comprehensive Loss, (iii) Condensed Consolidated Balance Sheets, (iv) Condensed Consolidated Statements of Cash Flows, (v) Condensed Consolidated Statements of Stockholders’ Equity, and (vi) Notes to the Condensed Consolidated Financial Statements.
104*	Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)

* Filed herewith

** Furnished herewith

63

EX-31

EXHIBIT 31

CERTIFICATIONS

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER AND PRINCIPAL FINANCIAL OFFICER

Each of the officers below certifies that:

1.I have reviewed this Quarterly Report on Form 10-Q (this “Report”) of Alpha Metallurgical Resources, Inc. (the “Registrant”);

2.Based on my knowledge, this Report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this Report;

3.Based on my knowledge, the financial statements, and other financial information included in this Report, fairly present in all material respects the financial condition, results of operations and cash flows of the Registrant as of, and for, the periods presented in this Report;

4.The Registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined by Exchange Act Rules 13a-15(f) and 15d-15(f)) for the Registrant and have:

a.    designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the Registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this Report is being prepared;

b.    designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c.    evaluated the effectiveness of the Registrant’s disclosure controls and procedures and presented in this Report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this Report based on such evaluation; and

d.    disclosed in this Report any change in the Registrant’s internal control over financial reporting that occurred during the Registrant’s most recent fiscal quarter (the Registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the Registrant’s internal control over financial reporting;

5.     The Registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the Registrant's auditors and the audit committee of the Registrant's board of directors (or persons performing the equivalent functions):

a.    All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the Registrant's ability to record, process, summarize and report financial information; and

b.    Any fraud, whether or not material, that involves management or other employees who have a significant role in the Registrant's internal control over financial reporting.

Date: August 6, 2021

By: /s/ David J. Stetson

David J. Stetson

Chief Executive Officer

(Principal Executive Officer)

Date: August 6, 2021

By: /s/ Charles Andrew Eidson

Charles Andrew Eidson

President and Chief Financial Officer

(Principal Financial Officer and Principal Accounting Officer)

EX-32

EXHIBIT 32

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report on Form 10-Q of Alpha Metallurgical Resources, Inc. (the “Registrant”) for the period ended June 30, 2021, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), each of the undersigned officers of the Registrant certifies, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to his knowledge:

1)The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2)The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Registrant.

Date: August 6, 2021

By: /s/ David J. Stetson

David J. Stetson

Chief Executive Officer

(Principal Executive Officer)

Date: August 6, 2021

By: /s/ Charles Andrew Eidson

Charles Andrew Eidson

President and Chief Financial Officer

(Principal Financial Officer and Principal Accounting Officer)

EX-95

Exhibit 95

Mine Safety and Health Administration Data

Our subsidiaries’ mining operations have consistently been recognized with numerous local, state and national awards over the years for outstanding safety performance.

Our behavior-based safety process involves all employees in accident prevention and continuous improvement. Safety leadership and training programs are based upon the concepts of situational awareness and observation, changing behaviors and, most importantly, employee involvement. The core elements of our safety training include identification of critical behaviors, frequency of those behaviors, employee feedback and removal of barriers for continuous improvement.

All employees are empowered to champion the safety process. Every person is challenged to identify hazards and initiate corrective actions, ensuring that hazards are addressed in a timely manner.

All levels of the organization are expected to be proactive and commit to perpetual improvement, implementing new safety processes that promote a safe and healthy work environment.

Our subsidiaries operate multiple mining complexes in two states and are regulated by both the U.S. Mine Safety and Health Administration (“MSHA”) and state regulatory agencies. As described in more detail in the “Environmental and Other Regulatory Matters” section of our Annual Report on Form 10-K for the year ended December 31, 2020, the Federal Mine Safety and Health Act of 1977, as amended (the “Mine Act”), among other federal and state laws and regulations, imposes stringent safety and health standards on all aspects of mining operations. Regulatory inspections are mandated by these agencies with thousands of inspection shifts at our properties each year. Citations and compliance metrics at each of our mines and coal preparation facilities vary due to the size and type of the operation. We endeavor to conduct our mining and other operations in compliance with all applicable federal, state and local laws and regulations. However, violations occur from time to time. None of the violations identified or the monetary penalties assessed upon us set forth in the tables below has been material.

For purposes of reporting regulatory matters under Section 1503(a) of the Dodd-Frank Wall Street Reform and Consumer Protection Act (the “Dodd-Frank Act”), we include the following table that sets forth the total number of specific citations and orders and the total dollar value of the proposed civil penalty assessments that were issued by MSHA during the current reporting period for each of our subsidiaries that is a coal mine operator, by individual mine. During the current reporting period, none of the mines operated by our subsidiaries received written notice from MSHA of a pattern of violations under Section 104(e) of the Mine Act.

MSHA Mine ID	Operator	Significant and Substantial Citations Issued (Section 104 of the Mine Act) *Excludes 104(d) citations/orders	Failure to  Abate Orders (Section 104(b) of the Mine Act)	Unwarrantable Failure Citations/Orders Issued (Section 104(d) of the Mine Act)	Flagrant Violations (Section 110(b)(2) of  the Mine Act)	Imminent Danger Orders Issued (Section 107(a) of the Mine Act)	Dollar Value of Proposed Civil Penalty Assessments (in Thousands) (1)	Mining Related Fatalities
4405270	Paramont Contura, LLC	1	—	—	—	—	$0.22	—
4405311	Dickenson-Russell Contura, LLC	—	—	—	—	—	$0.13	—
4407163	Paramont Contura, LLC	1	—	—	—	—	$0.81	—
4407223	Paramont Contura, LLC	6	—	—	—	—	$7.28	—
4407308	Paramont Contura, LLC	6	—	—	—	—	$7.64	—
4603317	Mammoth Coal Co.	—	—	—	—	—	$0.50	—
4604343	Kingston Mining, Inc.	—	—	—	—	—	$0.13	—
4604637	Kepler Processing Company LLC	—	—	—	—	—	$0.25	—
4604669	Rum Creek Coal Sales, Inc.	—	—	—	—	—	$0.25	—
4605086	Bandmill Coal LLC	2	—	—	—	—	$0.63	—
4608159	Mammoth Coal Co.	—	—	—	—	—	$0.76	—
4608374	Marfork Coal Company, LLC	1	—	—	—	—	$0.13	—
4608787	Nicholas Contura, LLC	7	—	—	—	—	$8.16	—
4608801	Aracoma Coal Company, LLC	2	—	—	—	—	$14.95	—
4608802	Aracoma Coal Company, LLC	—	—	—	—	—	$0.16	—
4608837	Marfork Coal Company, LLC	—	—	—	—	—	$2.32	—
4608932	Kingston Mining, Inc.	8	—	—	—	—	$49.80	—
4609026	Republic Energy, LLC	—	—	—	—	—	$0.38	—
4609091	Marfork Coal Company, LLC	23	—	—	—	—	$162.04	1
4609092	Marfork Coal Company, LLC	—	—	—	—	—	$5.65	—
4609148	Mammoth Coal Co.	—	—	—	—	—	$0.40	—
4609212	Marfork Coal Company, LLC	5	—	—	—	—	$22.45	—

4609221	Mammoth Coal Co.	5	—	—	—	—	$37.18	—
4609361	Aracoma Coal Company, LLC	—	—	—	—	—	$2.76	—
4609475	Republic Energy, LLC	—	—	—	—	—	$2.41	—
4609522	Spartan Mining Company, LLC	6	—	—	—	—	$20.21	—
4609550	Marfork Coal Company, LLC	23	—	—	—	—	$38.66	—
4609574	Aracoma Coal Company, LLC	6	—	—	—	—	$5.05	1 (2)
4609575	Aracoma Coal Company, LLC	7	—	—	—	—	$7.89	—

For purposes of reporting regulatory matters under Section 1503(a) of the Dodd-Frank Act, we include the following table that sets forth a list of legal actions pending before the Federal Mine Safety and Health Review Commission, including the Administrative Law Judges thereof, pursuant to the Mine Act, and other required information, for each of our subsidiaries that is a coal mine operator, by individual mine including legal actions and other required information.

Mine ID	Operator Name	MSHA Pending Legal Actions (as of last day of reporting period) (1)	New MSHA Dockets commenced during reporting period	MSHA dockets in which final orders were entered  (not appealed) during reporting period	Contests of Citations/Orders referenced in Subpart B, 29 CFR Part 2700	Contests of Proposed Penalties referenced in Subpart C, 29 CFR Part 2700	Complaints for compensation referenced in Subpart D, 29 CFR Part 2700	Complaints for discharge, discrimination, or interference referenced in Subpart E, 29 CFR Part 2700	Applications for temporary relief referenced in Subpart F 29 CFR Part 2700	Appeals of judges’ decisions or orders to FMSHRC referenced in Subpart H 29 CFR Part 2700
4407223	Paramont Contura, LLC	1	1	—	—	1	—	—	—	—
4407308	Paramont Contura, LLC	1	2	1	—	1	—	—	—	—
4601544	Spartan Mining Company, LLC	—	—	1	—	—	—	—	—	—
4605086	Bandmill Coal LLC	—	—	2	—	—	—	—	—	—
4608374	Marfork Coal Company, LLC	1	1	—	—	1	—	—	—	—
4608625	Kingston Mining, Inc.	—	—	1	—	—	—	—	—	—
4608787	Nicholas Contura, LLC	1	1	—	—	1	—	—	—	—
4608801	Aracoma Coal Company, LLC	—	—	1	—	—	—	—	—	—
4608837	Marfork Coal Company, LLC	1	1	—	—	1	—	—	—	—
4608932	Kingston Mining, Inc.	2	2	2	—	2	—	—	—	—
4609048	Marfork Coal Company, LLC	—	—	2	—	—	—	—	—	—
4609091	Marfork Coal Company, LLC	2	3	3	—	2	—	—	—	—
4609092	Marfork Coal Company, LLC	—	—	1	—	—	—	—	—	—
4609550	Marfork Coal Company, LLC	1	1	—	—	1	—	—	—	—
4609221	Mammoth Coal Co.	1	1	—	—	1	—	—	—	—

(1) The MSHA proposed assessments issued during the current reporting period do not necessarily relate to the citations or orders issued by MSHA during the current reporting period or to the pending legal actions reported herein.

(2)On January 22, 2021, a miner was injured in a powered haulage accident at Aracoma Coal Company, Davy Branch Mine. The miner died on February 21, 2021. Because of the circumstances surrounding the accident, MSHA referred the accident to the Agency’s Chargeability Review Committee (“Committee”). On May 11, 2021, the Committee determined that the death should be chargeable to the mining industry.

XML

Cover Page - shares	6 Months Ended
	Jun. 30, 2021	Jul. 31, 2021
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2021
Document Transition Report	false
Entity File Number	001-38735
Entity Registrant Name	ALPHA METALLURGICAL RESOURCES, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	81-3015061
Entity Address, Address Line One	340 Martin Luther King Jr. Blvd.
Entity Address, City or Town	Bristol
Entity Address, State or Province	TN
Entity Address, Postal Zip Code	37620
City Area Code	423
Local Phone Number	573-0300
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Title of 12(b) Security	Common Stock
Trading Symbol	AMR
Security Exchange Name	NYSE
Entity Common Stock, Shares Outstanding		18,400,317
Entity Central Index Key	0001704715
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q2
Amendment Flag	false

XML

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenues:
Coal revenues	$ 393,458	$ 353,115	$ 778,910	$ 754,575
Other revenues	1,817	825	2,618	2,169
Total revenues	395,275	353,940	781,528	756,744
Costs and expenses:
Cost of coal sales (exclusive of items shown separately below)	346,763	335,267	694,191	669,487
Depreciation, depletion and amortization	27,304	47,069	55,742	94,685
Accretion on asset retirement obligations	6,648	6,569	13,296	13,208
Amortization of acquired intangibles, net	2,553	1,881	6,422	2,392
Asset impairment and restructuring	0	20,498	(561)	54,207
Selling, general and administrative expenses (exclusive of depreciation, depletion and amortization shown separately above)	14,645	12,028	29,627	27,509
Total other operating (income) loss:
Mark-to-market adjustment for acquisition-related obligations	3,157	(2,052)	6,333	(17,049)
Other income	(3,608)	(45)	(4,833)	(713)
Total costs and expenses	397,462	421,215	800,217	843,726
Loss from operations	(2,187)	(67,275)	(18,689)	(86,982)
Other (expense) income:
Interest expense	(17,962)	(19,316)	(35,952)	(37,492)
Interest income	104	5,530	268	6,498
Equity loss in affiliates	(384)	(1,047)	(518)	(1,790)
Miscellaneous income (loss), net	1,847	395	3,613	(321)
Total other expense, net	(16,395)	(14,438)	(32,589)	(33,105)
Loss from continuing operations before income taxes	(18,582)	(81,713)	(51,278)	(120,087)
Income tax (expense) benefit	(8)	(33)	(3)	2,155
Net loss from continuing operations	(18,590)	(81,746)	(51,281)	(117,932)
Discontinued operations:
Loss from discontinued operations before income taxes	(401)	(156,555)	(638)	(160,177)
Loss from discontinued operations	(401)	(156,555)	(638)	(160,177)
Net loss	$ (18,991)	$ (238,301)	$ (51,919)	$ (278,109)
Basic and diluted loss per common share:
Loss from continuing operations - basic (in dollars per share)	$ (1.01)	$ (4.47)	$ (2.78)	$ (6.45)
Loss from continuing operations - diluted (in dollars per share)reported (in dollars per share)	(1.01)	(4.47)	(2.78)	(6.45)
Loss from discontinued operations - basic (in dollars per share)	(0.02)	(8.55)	(0.04)	(8.77)
Loss from discontinued operations - diluted (in dollars per share)	(0.02)	(8.55)	(0.04)	(8.77)
Net loss - basic (in dollars per share)	(1.03)	(13.02)	(2.82)	(15.22)
Net loss - diluted (in dollars per share)	$ (1.03)	$ (13.02)	$ (2.82)	$ (15.22)
Weighted average shares - basic (in shares)	18,438,699	18,304,853	18,416,946	18,275,382
Weighted average shares - diluted (in shares)	18,438,699	18,304,853	18,416,946	18,275,382

XML

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Statement of Other Comprehensive Income [Abstract]
Net loss	$ (18,991)	$ (238,301)	$ (51,919)	$ (278,109)
Employee benefit plans:
Amortization of and adjustments to employee benefit costs	10,180	(7,121)	11,664	(11,131)
Income tax expense	0	0	0	0
Total other comprehensive income (loss), net of tax	10,180	(7,121)	11,664	(11,131)
Total comprehensive loss	$ (8,811)	$ (245,422)	$ (40,255)	$ (289,240)

XML

CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 72,337	$ 139,227
Trade accounts receivable, net of allowance for doubtful accounts of $175 and $293 as of June 30, 2021 and December 31, 2020	206,693	145,670
Inventories, net	144,416	108,051
Prepaid expenses and other current assets	108,515	106,252
Current assets - discontinued operations	2,157	10,935
Total current assets	534,118	510,135
Property, plant, and equipment, net of accumulated depreciation and amortization of $418,677 and $382,423 as of June 30, 2021 and December 31, 2020	357,152	363,620
Owned and leased mineral rights, net of accumulated depletion and amortization of $45,505 and $35,143 as of June 30, 2021 and December 31, 2020	452,887	463,250
Other acquired intangibles, net of accumulated amortization of $32,286 and $25,700 as of June 30, 2021 and December 31, 2020	81,610	88,196
Long-term restricted cash	92,758	96,033
Other non-current assets	134,781	149,382
Non-current assets - discontinued operations	9,477	9,473
Total assets	1,662,783	1,680,089
Current liabilities:
Current portion of long-term debt	29,404	28,830
Trade accounts payable	97,938	58,413
Acquisition-related obligations – current	22,866	19,099
Accrued expenses and other current liabilities	154,067	140,406
Current liabilities - discontinued operations	7,101	12,306
Total current liabilities	311,376	259,054
Long-term debt	550,263	553,697
Acquisition-related obligations - long-term	11,972	20,768
Workers’ compensation and black lung obligations	231,029	230,081
Pension obligations	198,549	218,671
Asset retirement obligations	140,840	140,074
Deferred income taxes	483	480
Other non-current liabilities	28,444	28,072
Non-current liabilities - discontinued operations	27,496	29,090
Total liabilities	1,500,452	1,479,987
Commitments and Contingencies (Note 16)
Stockholders’ Equity
Preferred stock - par value $0.01, 5.0 million shares authorized, none issued	0	0
Common stock - par value $0.01, 50.0 million shares authorized, 20.8 million issued and 18.4 million outstanding at June 30, 2021 and 20.6 million issued and 18.3 million outstanding at December 31, 2020	208	206
Additional paid-in capital	782,586	779,424
Accumulated other comprehensive loss	(100,321)	(111,985)
Treasury stock, at cost: 2.4 million shares at June 30, 2021 and 2.3 million shares at December 31, 2020	(107,694)	(107,014)
Accumulated deficit	(412,448)	(360,529)
Total stockholders’ equity	162,331	200,102
Total liabilities and stockholders’ equity	$ 1,662,783	$ 1,680,089

XML

CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - Parenthetical - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 175	$ 293
Property, plant and equipment, accumulated amortization, depreciation and amortization	418,677	382,423
Owned and lease mineral rights, accumulated depletion and amortization	45,505	35,143
Other acquired intangibles, accumulated amortization	$ 32,286	$ 25,700
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	5,000,000.0	5,000,000.0
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in dollars per share	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	50,000,000.0	50,000,000.0
Common stock, shares issued (in shares)	20,800,000	20,600,000
Common stock, shares outstanding (in shares)	18,400,000	18,300,000
Treasury stock, shares at cost (in shares)	2,400,000	2,300,000

XML

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Operating activities:
Net loss	$ (51,919)	$ (278,109)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation, depletion and amortization	55,742	103,727
Amortization of acquired intangibles, net	6,422	2,961
Accretion of acquisition-related obligations discount	723	2,227
Amortization of debt issuance costs and accretion of debt discount	6,480	7,389
Mark-to-market adjustment for acquisition-related obligations	6,333	(17,049)
Gain on disposal of assets	(4,878)	(755)
Asset impairment and restructuring	(561)	217,882
Accretion on asset retirement obligations	13,296	14,679
Employee benefit plans, net	5,744	10,605
Deferred income taxes	3	33,032
Stock-based compensation	3,162	3,121
Equity loss in affiliates	518	1,790
Other, net	(220)	92
Changes in operating assets and liabilities	(66,296)	(22,654)
Net cash (used in) provided by operating activities	(25,451)	78,938
Investing activities:
Capital expenditures	(38,039)	(91,090)
Proceeds on disposal of assets	6,801	1,285
Purchases of investment securities	(15,470)	(18,607)
Maturity of investment securities	7,766	10,653
Capital contributions to equity affiliates	(1,895)	(2,416)
Other, net	35	47
Net cash used in investing activities	(40,802)	(100,128)
Financing activities:
Proceeds from borrowings on debt	0	57,500
Principal repayments of debt	(6,159)	(29,559)
Principal repayments of notes payable	(1,362)	(574)
Principal repayments of financing lease obligations	(1,002)	(1,614)
Debt issuance costs	(226)	0
Common stock repurchases and related expenses	(680)	(155)
Net cash (used in) provided by financing activities	(9,429)	25,598
Net (decrease) increase in cash and cash equivalents and restricted cash	(75,682)	4,408
Cash and cash equivalents and restricted cash at beginning of period	244,571	347,680
Cash and cash equivalents and restricted cash at end of period	168,889	352,088
Reconciliation of Cash and Cash Equivalents and Restricted Cash
Cash and cash equivalents	72,337	238,438
Short-term restricted cash (included in prepaid expenses and other current assets)	3,794	3,720
Long-term restricted cash	92,758	109,930
Total cash and cash equivalents and restricted cash shown in the Condensed Consolidated Statements of Cash Flows	$ 168,889	$ 352,088

XML

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Unaudited) - USD ($) $ in Thousands	Total	Cumulative effect	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Loss	Treasury Stock at Cost	Retained Earnings (Deficit)	Retained Earnings (Deficit) Cumulative effect
Beginning balance at Dec. 31, 2019	$ 696,122	$ (440)	$ 205	$ 775,707	$ (58,616)	$ (107,984)	$ 86,810	$ (440)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(39,808)						(39,808)
Other comprehensive loss, net	(4,010)				(4,010)
Stock-based compensation and net issuance of common stock for share vesting	900			900
Common stock reissuances, repurchases and related expenses	1,071					1,071
Ending balance at Mar. 31, 2020	653,835		205	776,607	(62,626)	(106,913)	46,562
Beginning balance at Dec. 31, 2019	696,122	$ (440)	205	775,707	(58,616)	(107,984)	86,810	$ (440)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(278,109)
Other comprehensive loss, net	(11,131)
Ending balance at Jun. 30, 2020	409,415		206	777,650	(69,747)	(106,955)	(191,739)
Beginning balance at Mar. 31, 2020	653,835		205	776,607	(62,626)	(106,913)	46,562
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(238,301)						(238,301)
Other comprehensive loss, net	(7,121)				(7,121)
Stock-based compensation and net issuance of common stock for share vesting	1,044		1	1,043
Common stock reissuances, repurchases and related expenses	(42)					(42)
Ending balance at Jun. 30, 2020	409,415		206	777,650	(69,747)	(106,955)	(191,739)
Beginning balance at Dec. 31, 2020	200,102		206	779,424	(111,985)	(107,014)	(360,529)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(32,928)						(32,928)
Other comprehensive loss, net	1,484				1,484
Stock-based compensation and net issuance of common stock for share vesting	2,183		1	2,182
Common stock reissuances, repurchases and related expenses	(680)					(680)
Ending balance at Mar. 31, 2021	170,161		207	781,606	(110,501)	(107,694)	(393,457)
Beginning balance at Dec. 31, 2020	200,102		206	779,424	(111,985)	(107,014)	(360,529)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(51,919)
Other comprehensive loss, net	11,664
Ending balance at Jun. 30, 2021	162,331		208	782,586	(100,321)	(107,694)	(412,448)
Beginning balance at Mar. 31, 2021	170,161		207	781,606	(110,501)	(107,694)	(393,457)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(18,991)						(18,991)
Other comprehensive loss, net	10,180				10,180
Stock-based compensation and net issuance of common stock for share vesting	981		1	980
Ending balance at Jun. 30, 2021	$ 162,331		$ 208	$ 782,586	$ (100,321)	$ (107,694)	$ (412,448)

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Business and Basis of Presentation

6 Months Ended

Jun. 30, 2021

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Business and Basis of Presentation

Business and Basis of Presentation

Business

Alpha Metallurgical Resources, Inc. (“Alpha” or the “Company”) is a Tennessee-based mining company with operations across Virginia and West Virginia. With customers across the globe, high-quality reserves and significant port capacity, Alpha is a leading U.S. supplier of metallurgical products for the steel industry.

Basis of Presentation

Together, the condensed consolidated statements of operations, comprehensive loss, balance sheets, cash flows and stockholders’ equity for the Company are referred to as the “Condensed Consolidated Financial Statements.” The Condensed Consolidated Financial Statements are also referenced across periods as “Condensed Consolidated Statements of Operations,” “Condensed Consolidated Statements of Comprehensive Loss,” “Condensed Consolidated Balance Sheets,” “Condensed Consolidated Statements of Cash Flows,” and “Condensed Consolidated Statements of Stockholders’ Equity.” The Company’s former Northern Appalachia (“NAPP”) operations results of operations and financial position are reported as discontinued operations in the Condensed Consolidated Financial Statements. The historical information in the accompanying Notes to the Condensed Consolidated Financial Statements has been restated to reflect the effects of the Company’s former NAPP operations being reported as discontinued operations in the Condensed Consolidated Financial Statements. Refer to Note 2 for further information on discontinued operations.

The Condensed Consolidated Financial Statements include all wholly-owned subsidiaries’ results of operations for the three and six months ended June 30, 2021 and 2020. All significant intercompany transactions have been eliminated in consolidation.

The accompanying interim Condensed Consolidated Financial Statements are unaudited and have been prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”) and in accordance with the rules and regulations of the United States Securities and Exchange Commission (“SEC”) for Form 10-Q. Such rules and regulations allow the omission of certain information and footnote disclosures normally included in the financial statements prepared in accordance with U.S. GAAP as long as the financial statements are not misleading. In the opinion of management, these interim Condensed Consolidated Financial Statements reflect all normal and recurring adjustments necessary for a fair presentation of the results for the periods presented. Results of operations for the three and six months ended June 30, 2021 are not necessarily indicative of the results to be expected for the year ending December 31, 2021 or any other period. These interim Condensed Consolidated Financial Statements should be read in conjunction with the Company’s Consolidated Financial Statements and related notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2020.

Liquidity Risks and Uncertainties

The Company believes it will have sufficient liquidity to meet its working capital requirements, anticipated capital expenditures, debt service requirements, acquisition-related obligations, and reclamation obligations for the 12 months subsequent to the issuance of these financial statements. However, the Company may need to raise additional funds if market conditions deteriorate and may not be able to do so in a timely fashion, or at all. The Company relies on a number of assumptions in budgeting for future activities. These include the costs for mine development to sustain capacity of its operating mines, cash flows from operations, effects of regulation and taxes by governmental agencies, mining technology improvements and reclamation costs. These assumptions are inherently subject to significant business, political, economic, regulatory, environmental and competitive uncertainties, contingencies and risks, all of which are difficult to predict and many of which are beyond the Company’s control. Therefore, the Company’s cash on hand and from future operations will be subject to any significant changes in these assumptions.

COVID-19 Pandemic

In the first quarter of 2020, the COVID-19 virus was declared a pandemic by the World Health Organization. The COVID-19 pandemic has had negative impacts on the Company’s business, results of operations, financial condition and cash flows. The full extent of the impact of the COVID-19 pandemic on the Company’s operational and financial performance will depend on certain developments, including the duration and spread of the outbreak, its impact on its customers and suppliers

and the range of governmental and community reactions to the pandemic, which are still uncertain and still cannot be fully predicted.

Recently Adopted Accounting Guidance

Convertible Debt and Contracts in Entity’s Own Equity: In August 2020, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2020-06, Debt—Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging—Contracts in Entity’s Own Equity (Subtopic 815-40) (“ASU 2020-06”). The amendments in this update simplify the accounting for certain financial instruments with characteristics of liabilities and equity, including convertible instruments and contracts in an entity’s own equity, such as the Company’s outstanding Series A warrants. For public business entities, the standard is effective for fiscal years beginning after December 15, 2021, with early adoption permitted. The Company adopted ASU 2020-06 during the first quarter of 2021. The adoption of this ASU did not have a material impact on the Company's Condensed Consolidated Financial Statements and related disclosures.

Reference Rate Reform: In January 2021, the FASB issued ASU 2021-01, Reference Rate Reform (Topic 848) (“ASU 2021-01”). The amendments in this update clarify that certain optional expedients and exceptions in Topic 848 for contract modifications and hedge accounting apply to derivatives that are affected by the discounting transition. For all entities, the standard is effective immediately. The Company adopted ASU 2021-01 during the first quarter of 2021. The adoption of this ASU did not have a material impact on the Company's Condensed Consolidated Financial Statements and related disclosures.

Certain Modifications or Exchanges of Freestanding Equity-Classified Written Call Options: In May 2021, the FASB issued ASU 2021-04, Earnings Per Share (Topic 260), Debt—Modifications and Extinguishments (Subtopic 470-50), Compensation—Stock Compensation (Topic 718), and Derivatives and Hedging—Contracts in Entity’s Own Equity (Subtopic 815-40) (“ASU 2021-04”). The amendments in this update provide final guidance that requires issuers to account for modifications or exchanges of freestanding equity-classified written call options, such as the Company’s outstanding Series A warrants, that remain equity classified after the modification or exchange based on the economic substance of the modification or exchange. This ASU addresses the diversity in practice in issuers’ accounting by providing a principles-based framework to determine whether an issuer should recognize the modification or exchange as 1) an adjustment to equity and, if so, the related earnings per share effects, if any, or 2) an expense and, if so, the manner and pattern of recognition. For all entities, the standard is effective for fiscal years beginning after December 15, 2021, with early adoption permitted. The Company adopted ASU 2021-04 during the second quarter of 2021. The adoption of this ASU did not have a material impact on the Company's Condensed Consolidated Financial Statements and related disclosures.

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Discontinued Operations

6 Months Ended

Jun. 30, 2021

Discontinued Operations and Disposal Groups [Abstract]

Discontinued Operations

Discontinued Operations

Discontinued operations consist of activity related to the Company’s former NAPP operations.

On December 10, 2020, the Company closed on a transaction to sell its thermal coal mining operations located in Pennsylvania consisting primarily of its Cumberland mining complex and related property to a third party purchaser, Iron Senergy Holdings, LLC (“Iron Senergy”). The mining permits associated with the Cumberland operations were obtained by Iron Senergy at closing. During the second quarter of 2021, nearly all of the Company’s remaining surety bonds were released and Iron Senergy’s replacement bonds were accepted through the administrative process with only $30 remaining and expected to be released in the short-term.

Major Financial Statement Components of Discontinued Operations

The loss from discontinued operations before income taxes for the three and six months ended June 30, 2021 was $401 and $638, respectively. The major components of loss from discontinued operations before income taxes in the Condensed Consolidated Statements of Operations for the three and six months ended June 30, 2020 are as follows:

	Three Months Ended June 30, 2020 (1)		Six Months Ended June 30, 2020 (1)
Revenues:
Total revenues	$	57,898	$	125,554
Costs and expenses:
Cost of coal sales (exclusive of items shown separately below)	47,843		110,265
Depreciation, depletion and amortization	2,193		9,042
Accretion on asset retirement obligations	735		1,471
Selling, general and administrative expenses (2)	169		1,387
Asset impairment and restructuring (3)	163,675		163,675
Other non-major income items, net	(162)		(109)
Loss from discontinued operations before income taxes	$	(156,555)	$	(160,177)

(1) Includes minor residual activity related to the Company’s former Powder River Basin (“PRB”) operations.

(2) Represents professional and legal fees.

(3) Refer to Note 8 for additional information on asset impairment and restructuring during the periods.

Refer to the Condensed Consolidated Statements of Operations for loss per share information related to discontinued operations.

The major components of assets and liabilities that are classified as discontinued operations in the Condensed Consolidated Balance Sheets are as follows:

	June 30, 2021		December 31, 2020
Assets:
Trade accounts receivable, net of allowance for doubtful accounts	$	—	$	7,504
Prepaid expenses and other current assets	$	2,157	$	3,431
Other non-current assets (1)	$	9,477	$	9,473
Liabilities:
Trade accounts payable, accrued expenses and other current liabilities	$	7,101	$	12,306
Workers’ compensation and black lung obligations, non-current	$	26,205	$	27,799
Other non-current liabilities	$	1,291	$	1,291

(1) Primarily comprised of workers’ compensation insurance receivable and long-term restricted investments collateralizing workers’ compensation obligations.

The major components of cash flows related to discontinued operations are as follows:

	Six Months Ended June 30, 2020
Depreciation, depletion and amortization	$	9,042
Capital expenditures	$	24,169
Other significant operating non-cash items related to discontinued operations:
Accretion on asset retirement obligations	$	1,471
Asset impairment and restructuring	$	163,675

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Revenue

6 Months Ended

Jun. 30, 2021

Revenue from Contract with Customer [Abstract]

Revenue

Revenue

Disaggregation of Revenue from Contracts with Customers

The Company earns revenues primarily through the sale of coal produced at Company operations and coal purchased from third parties. The Company extracts, processes and markets met and thermal coal from deep and surface mines for sale to steel and coke producers, industrial customers, and electric utilities.

The Company has disaggregated revenue between met coal and thermal coal and export and domestic revenues which depicts the pricing and contract differences between the two. Export revenue generally is derived by spot or short term contracts with pricing determined at the time of shipment or based on a market index; whereas domestic revenue is characterized by contracts that typically have a term of one year or longer and typically the pricing is fixed. The following tables disaggregate the Company’s coal revenues by product category and by market to depict how the nature, amount, timing, and uncertainty of the Company’s coal revenues and cash flows are affected by economic factors:

	Three Months Ended June 30, 2021
	Met Coal		Thermal Coal		Total
Export coal revenues	$	250,324	$	5,693	$	256,017
Domestic coal revenues	105,235		32,206		137,441
Total coal revenues	$	355,559	$	37,899	$	393,458

	Three Months Ended June 30, 2020
	Met Coal		Thermal Coal		Total
Export coal revenues	$	230,293	$	10,369	$	240,662
Domestic coal revenues	82,903		29,550		112,453
Total coal revenues	$	313,196	$	39,919	$	353,115

	Six Months Ended June 30, 2021
	Met		Thermal		Total
Export coal revenues	$	493,076	$	6,724	$	499,800
Domestic coal revenues	205,477		73,633		279,110
Total coal revenues	$	698,553	$	80,357	$	778,910

	Six Months Ended June 30, 2020
	Met		Thermal		Total
Export coal revenues	$	474,364	$	17,752	$	492,116
Domestic coal revenues	197,591		64,868		262,459
Total coal revenues	$	671,955	$	82,620	$	754,575

Performance Obligations

The following table includes estimated revenue expected to be recognized in the future related to performance obligations that are unsatisfied as of June 30, 2021:

	Remainder of 2021		2022		2023		2024		2025		Total
Estimated coal revenues	$	65,852	$	50,935	$	—	$	—	$	—	$	116,787

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Accumulated Other Comprehensive Loss

6 Months Ended

Jun. 30, 2021

Equity [Abstract]

Accumulated Other Comprehensive Loss

Accumulated Other Comprehensive Loss

The following tables summarize the changes to accumulated other comprehensive loss during the six months ended June 30, 2021 and 2020:

	Balance January 1, 2021		Other comprehensive income before reclassifications		Amounts reclassified from accumulated other comprehensive loss		Balance June 30, 2021
Employee benefit costs	$	(111,985)	$	8,838	$	2,826	$	(100,321)

	Balance January 1, 2020		Other comprehensive loss before reclassifications		Amounts reclassified from accumulated other comprehensive loss		Balance June 30, 2020
Employee benefit costs	$	(58,616)	$	(14,154)	$	3,023	$	(69,747)

The following table summarizes the amounts reclassified from accumulated other comprehensive loss and the Condensed Consolidated Statements of Operations line items affected by the reclassification during the three and six months ended June 30, 2021 and 2020:

Details about accumulated other comprehensive loss components	Amounts reclassified from accumulated other comprehensive loss								Affected line item in the Condensed Consolidated Statements of Operations
	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Employee benefit costs:
Amortization of net actuarial loss (1)	$	1,342	$	934	$	2,826	$	1,728	Miscellaneous income (loss), net
Settlement (1)	—		95		—		1,295		Miscellaneous income (loss), net
Total before income tax	$	1,342	$	1,029	$	2,826	$	3,023
Income tax	—		—		—		—		Income tax (expense) benefit
Total, net of income tax	$	1,342	$	1,029	$	2,826	$	3,023

(1) These accumulated other comprehensive loss components are included in the computation of net periodic benefit costs for certain employee benefit plans. Refer to Note 14.

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Net Loss Per Share

6 Months Ended

Jun. 30, 2021

Earnings Per Share [Abstract]

Net Loss Per Share

Net Loss Per Share

The number of shares used to calculate basic net loss per common share is based on the weighted average number of the Company’s outstanding common shares during the respective period. The number of shares used to calculate diluted net loss per common share is based on the number of common shares used to calculate basic net loss per common share plus the dilutive effect of stock options and other stock-based instruments held by the Company’s employees and directors during the period, and the Company’s outstanding Series A warrants. The dilutive effect of outstanding stock-based instruments is determined by application of the treasury stock method. The warrants become dilutive for diluted net loss per common share calculations when the market price of the Company’s common stock exceeds the exercise price. As discussed below, dilutive securities are not included in the computation of diluted net loss per common share as the impact would be anti-dilutive. Refer to the Condensed Consolidated Statements of Operations for net loss per common share for the three and six months ended June 30, 2021 and 2020.

For the three months ended June 30, 2021 and 2020, 942,549 and 1,581,608 warrants, stock options, and other stock-based instruments, respectively, were excluded from the computation of dilutive net loss per common share because they would have been anti-dilutive. For the six months ended June 30, 2021 and 2020, 948,398 and 1,492,657 warrants, stock options, and other stock-based instruments, respectively, were excluded from the computation of dilutive net loss per common share because they would have been anti-dilutive. When applying the treasury stock method, anti-dilution generally occurs when the exercise prices or unrecognized compensation cost per share are higher than the Company’s average stock price during an applicable period.

Anti-dilution also occurs in periods of a net loss, and the dilutive impact of all share-based compensation awards are excluded. For the three months ended June 30, 2021 the weighted average share impact of stock options and other stock-based instruments and for the three months ended June 30, 2020 the weighted average share impact of other stock-based instruments that were excluded from the calculation of diluted shares due to the Company incurring a net loss for the period were 313,640 and 9,572, respectively. For the six months ended June 30, 2021 and 2020, the weighted average share impact of stock options and other stock-based instruments that were excluded from the calculation of diluted shares due to the Company incurring a net loss for the period were 301,684 and 42,139, respectively.

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Inventories, net

6 Months Ended

Jun. 30, 2021

Inventory Disclosure [Abstract]

Inventories, net

Inventories, net

Inventories, net consisted of the following: 

	June 30, 2021		December 31, 2020
Raw coal	$	21,071	$	15,084
Saleable coal	96,768		69,262
Materials, supplies and other, net	26,577		23,705
Total inventories, net	$	144,416	$	108,051

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Acquired Intangibles

6 Months Ended

Jun. 30, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Acquired Intangibles

Acquired Intangibles

The Company has recognized assets for acquired above market-priced coal supply agreements and acquired mine permits and liabilities for acquired below market-priced coal supply agreements. The balances and respective balance sheet classifications of such assets and liabilities as of June 30, 2021 and December 31, 2020, net of accumulated amortization, are set forth in the following tables:

	June 30, 2021
	Assets (1)		Liabilities (2)		Net Total
Coal supply agreements, net	$	—	$	(163)	$	(163)
Acquired mine permits, net	81,610		—		81,610
Total	$	81,610	$	(163)	$	81,447

	December 31, 2020
	Assets (1)		Liabilities (2)		Net Total
Coal supply agreements, net	$	—	$	(327)	$	(327)
Acquired mine permits, net	88,196		—		88,196
Total	$	88,196	$	(327)	$	87,869

(1) Included within other acquired intangibles, net of accumulated amortization on the Company’s Condensed Consolidated Balance Sheets.

(2) Included within other non-current liabilities on the Company’s Condensed Consolidated Balance Sheets.

The following table details the amortization of the Company’s acquired intangibles included within amortization of acquired intangibles, net in the Condensed Consolidated Statements of Operations:

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Amortization of mine permits	$	2,635	$	3,320	$	6,586	$	6,648
Amortization of above-market coal supply agreements	$	—	$	—	$	—	$	18
Amortization of below-market coal supply agreements	(82)		(1,439)		(164)		(4,274)
Net income	$	(82)	$	(1,439)	$	(164)	$	(4,256)

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Asset Impairment and Restructuring

6 Months Ended

Jun. 30, 2021

Restructuring and Related Activities [Abstract]

Asset Impairment and Restructuring

Asset Impairment and Restructuring

Long-lived Asset Impairment

During the six months ended June 30, 2021, long-lived asset impairment of $60 was recorded in the All Other category to reduce the carrying value of property, plant, and equipment, net, due to capital spending during the period at previously impaired locations requiring the impairment of certain additional assets not considered recoverable.

During the second quarter of 2020, as a result of the weakening coal market conditions due in part to the impact of the global COVID-19 pandemic, the Company announced that it would take certain strategic actions with respect to two of its thermal coal mining complexes in an effort to strengthen its financial performance and improve forecasted liquidity. The Company announced that an underground mine and preparation plant located in West Virginia would be idled during the third quarter of 2020. In addition, the Company decided not to move forward with the construction of a new refuse impoundment at its Cumberland mine in Pennsylvania and would therefore no longer spend the significant capital required in connection with the project. As a result, the Cumberland mine was expected to cease production by the end of 2022. On December 10, 2020, the Company sold its Cumberland mining operations. Refer to Note 2 for further details.

In connection with the preparation of the Company’s financial statements for the quarter ended June 30, 2020, the Company determined that the strategic actions taken by the Company during the three months ended June 30, 2020, discussed above, shortened the lives of two mining complexes, and that continued weakening in metallurgical and thermal coal pricing had resulted in forecasted margins at certain locations falling below amounts necessary for full recoverability. As a result of these determinations, the Company assessed that indicators of impairment were present for three long-lived asset groups within its Met reporting segment and four long-lived asset groups within its All Other category. The Company therefore performed impairment testing on these assets and determined that, as of May 31, 2020, the carrying amounts of the asset groups exceeded both their undiscounted cash flows and their estimated fair values. The Company estimated the fair value of these asset groups generally using a discounted cash flow analysis utilizing market-participant assumptions.

During the first quarter of 2020, due to declines in metallurgical and thermal coal pricing which reduced forecasted margins at certain locations to amounts below those required for full recoverability, the Company determined that indicators of impairment were present for four long-lived asset groups within its Met reporting segment and three long-lived asset groups within its All Other category and performed impairment testing as of February 29, 2020. At February 29, 2020, the Company determined that the carrying amounts of the asset groups exceeded both their undiscounted cash flows and their estimated fair values. The Company estimated the fair value of these asset groups generally using a discounted cash flow analysis utilizing market-participant assumptions.

The following tables present the details of the long-lived asset impairment during the three and six months ended June 30, 2020:

	Three Months Ended June 30, 2020		Six Months Ended June 30, 2020
Continuing operations:
Met	$	—	$	32,951
All Other	17,390		18,148
Total from continuing operations	$	17,390	$	51,099
Discontinued operations:	$	144,348	$	144,348
Total long-lived asset impairment:	$	161,738	$	195,447

	Three Months Ended June 30, 2020		Six Months Ended June 30, 2020
Continuing operations:
Mineral rights, net	$	2,241	$	24,066
Property, plant, and equipment, net	6,496		12,562
Acquired mine permits, net	8,653		14,471
Total from continuing operations	$	17,390	$	51,099
Discontinued operations:
Mineral rights, net	$	16,364	$	16,364
Property, plant, and equipment, net	127,984		127,984
Total from discontinued operations	$	144,348	$	144,348
Total long-lived asset impairment:
Mineral rights, net	$	18,605	$	40,430
Property, plant, and equipment, net	134,480		140,546
Acquired mine permits, net	8,653		14,471
Total long-lived asset impairment	$	161,738	$	195,447

Restructuring

As a result of the strategic actions announced in the second quarter of 2020 and subsequent changes to severance and employee-related benefits, the Company recorded restructuring expense of ($621) in the All Other category during the six months ended June 30, 2021.

As a result of the strategic actions discussed above, the Company recorded restructuring expense during the three and six months ended June 30, 2020 as follows:

	Three and Six Months Ended June 30, 2020
	Total Restructuring		Continuing Operations (3)		Discontinued Operations
Severance and employee-related benefits (1)	$	20,553	$	2,301	$	18,252
Other costs (2)	1,882		807		1,075
Total restructuring expense	$	22,435	$	3,108	$	19,327

(1) Severance and employee-related benefits were considered probable and estimable based on provisions of contractual agreements and existing employee benefit plans.

(2) Includes accelerated amortization of deferred longwall move expenses of $668, allowance for advanced mining royalties of $407, and allowance for obsolete materials and supplies inventory of $807.

(3) Total restructuring expense from continuing operations of $3,108 was recorded within the All Other category and affected Accrued expenses and other current liabilities, Other non-current liabilities, and Inventories, net.

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Long-Term Debt

6 Months Ended

Jun. 30, 2021

Debt Disclosure [Abstract]

Long-Term Debt

Long-Term Debt

Long-term debt consisted of the following: 

	June 30, 2021		December 31, 2020
Term Loan Credit Facility - due June 2024	$	550,564	$	553,373
ABL Facility - due April 2022	—		3,350
LCC Note Payable	27,500		27,500
LCC Water Treatment Obligation	6,250		6,875
Other (1)	6,665		8,475
Debt discount and issuance costs	(11,312)		(17,046)
Total long-term debt	579,667		582,527
Less current portion	(29,404)		(28,830)
Long-term debt, net of current portion	$	550,263	$	553,697

(1) Includes financing leases.

Term Loan Credit Facility - due June 2024

As of June 30, 2021, the borrowings made under the senior secured term loan facility with a maturity date of June 14, 2024 (the “Term Loan Credit Facility”) were comprised of Eurocurrency Rate Loans (as defined therein) with an interest rate of 10.00%, calculated as the Eurocurrency rate during the period plus an applicable rate of 8.00%. As of June 30, 2021, the carrying value of the Term Loan Credit Facility was $541,572, with $5,618 classified as current within the Condensed Consolidated Balance Sheets. As of December 31, 2020, the carrying value of the Term Loan Credit Facility was $540,643, with $5,618 classified as current within the Condensed Consolidated Balance Sheets.

All obligations under the Term Loan Credit Facility are guaranteed by substantially all of Alpha’s direct and indirect subsidiaries. Certain obligations under the Term Loan Facility are secured by a senior lien, subject to certain exceptions (including the ABL Priority Collateral described below), by substantially all of Alpha’s assets and the assets of Alpha’s subsidiary guarantors (“Term Loan Priority Collateral”), in each case subject to exceptions. The obligations under the Term Loan Credit Facility are also secured by a junior lien, again subject to certain exceptions, against the ABL Priority Collateral. The Term Loan Facility contains negative and affirmative covenants including certain financial covenants that are more flexible than the covenants in the Amended and Restated Credit Agreement dated November 9, 2018. The Company was in compliance with all covenants under this agreement as of June 30, 2021.

Amended and Restated Asset-Based Revolving Credit Agreement

The Amended and Restated Asset-Based Revolving Credit Agreement includes a senior secured asset-based revolving credit facility (the “ABL Facility”). Under the ABL Facility, the Company may borrow cash or obtain letters of credit, on a revolving basis. As of June 30, 2021, there were no outstanding borrowings under the ABL Facility. As of December 31, 2020, the carrying value of the ABL Facility was $3,350, all of which was classified as long-term within the Condensed Consolidated Balance Sheets. As of June 30, 2021 and December 31, 2020, the Company had $128,752 and $123,108 letters of credit outstanding under the ABL Facility, respectively.

The Amended and Restated Asset-Based Revolving Credit Agreement provides that a specified percentage of billed, unbilled and approved foreign receivables and raw and clean inventory meeting certain criteria are eligible to be counted for purposes of collateralizing the amount of financing available, subject to certain terms and conditions. Availability under the ABL Facility is calculated on a monthly basis and fluctuates based on qualifying amounts of coal inventory and trade accounts receivable (the “Borrowing Base”) and the facility's covenant limitations related to the Fixed Charge Coverage Ratio (as defined therein). In accordance with terms of the ABL Facility, the Company may be required to collateralize the ABL Facility to the extent outstanding borrowings and letters of credit under the ABL Facility exceed the Borrowing Base after considering covenant limitations.

The ABL Facility is guaranteed by substantially all of Alpha’s direct and indirect subsidiaries (together with Alpha, the “Loan Parties”) and secured by all or substantially all assets of the Loan Parties, including equity in Alpha’s direct domestic subsidiaries and first-tier foreign subsidiaries, as collateral for the obligations under the ABL Facility. The ABL Facility has a

first lien on ABL Priority Collateral (as defined therein) and a second lien on Term Loan Priority Collateral. The Amended and Restated Asset-Based Revolving Credit Agreement, as amended, and related documents contain negative and affirmative covenants including certain financial covenants. The Company is in compliance with all covenants under these agreements as of June 30, 2021.

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Acquisition-Related Obligations

6 Months Ended

Jun. 30, 2021

Fair Value Disclosures [Abstract]

Acquisition-Related Obligations

Acquisition-Related Obligations

Acquisition-related obligations consisted of the following:

	June 30, 2021		December 31, 2020
Contingent Revenue Obligation	$	23,904	$	28,967
Environmental Settlement Obligations	9,702		10,391
UMWA Funds Settlement Liability	2,000		2,000
Discount	(768)		(1,491)
Total acquisition-related obligations	34,838		39,867
Less current portion	(22,866)		(19,099)
Acquisition-related obligations, net of current portion	$	11,972	$	20,768

Contingent Revenue Obligation

As of June 30, 2021 and December 31, 2020, the carrying value of the Contingent Revenue Obligation was $23,904 and $28,967, with $13,465 and $11,393 classified as current, respectively, classified as an acquisition-related obligation in the Condensed Consolidated Balance Sheets. Refer to Note 12 for further disclosures related to the fair value assignment and methods used.

During the second quarter of 2021, the Company paid $11,396 pursuant to the terms of the Contingent Revenue Obligation.

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Asset Retirement Obligations

6 Months Ended

Jun. 30, 2021

Asset Retirement Obligation Disclosure [Abstract]

Asset Retirement Obligations

Asset Retirement Obligations

The following table summarizes the changes in asset retirement obligations for the six months ended June 30, 2021:

Total asset retirement obligations at December 31, 2020	$	165,064
Accretion for the period	13,296
Revisions in estimated cash flows	(17)
Expenditures for the period	(8,592)
Total asset retirement obligations at June 30, 2021	169,751
Less current portion (1)	(28,911)
Long-term portion	$	140,840

(1)    Included within accrued expenses and other current liabilities on the Company’s Condensed Consolidated Balance Sheets.

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Fair Value of Financial Instruments and Fair Value Measurements

6 Months Ended

Jun. 30, 2021

Fair Value Disclosures [Abstract]

Fair Value of Financial Instruments and Fair Value Measurements

Fair Value of Financial Instruments and Fair Value Measurements

The estimated fair values of financial instruments are determined based on relevant market information. These estimates involve uncertainty and cannot be determined with precision.

The carrying amounts for cash and cash equivalents, trade accounts receivable, net, prepaid expenses and other current assets, short-term and long-term restricted cash, short-term and long-term deposits, trade accounts payable, and accrued expenses and other current liabilities approximate fair value as of June 30, 2021 and December 31, 2020 due to the short maturity of these instruments.

The following tables set forth by level, within the fair value hierarchy, the Company’s long-term debt at fair value as of June 30, 2021 and December 31, 2020:

	June 30, 2021
	Carrying      Amount (1)		Total Fair Value		Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Term Loan Credit Facility - due June 2024	$	541,572	$	488,626	$	—	$	488,626	$	—
LCC Note Payable	26,046		25,172		—		—		25,172
LCC Water Treatment Obligation	5,384		4,945		—		—		4,945
Total long-term debt	$	573,002	$	518,743	$	—	$	488,626	$	30,117

	December 31, 2020
	Carrying      Amount (1)		Total Fair Value		Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Term Loan Credit Facility - due June 2024	$	540,643	$	379,614	$	—	$	379,614	$	—
ABL Facility - due April 2022	3,350		3,057		—		—		3,057
LCC Note Payable	24,423		20,328		—		—		20,328
LCC Water Treatment Obligation	5,636		4,281		—		—		4,281
Total long-term debt	$	574,052	$	407,280	$	—	$	379,614	$	27,666

(1) Net of debt discounts and debt issuance costs.

The following tables set forth by level, within the fair value hierarchy, the Company’s acquisition-related obligations at fair value as of June 30, 2021 and December 31, 2020:

	June 30, 2021
	Carrying      Amount (1)		Total Fair Value		Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
UMWA Funds Settlement Liability	$	1,823	$	1,797	$	—	$	—	$	1,797
Environmental Settlement Obligations	9,111		8,764		—		—		8,764
Total acquisition-related obligations	$	10,934	$	10,561	$	—	$	—	$	10,561

	December 31, 2020
	Carrying      Amount (1)		Total Fair Value		Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
UMWA Funds Settlement Liability	$	1,662	$	1,426	$	—	$	—	$	1,426
Environmental Settlement Obligations	9,237		7,760		—		—		7,760
Total acquisition-related obligations	$	10,899	$	9,186	$	—	$	—	$	9,186

(1) Net of discounts.

The following table sets forth by level, within the fair value hierarchy, the Company’s financial and non-financial assets and liabilities that were accounted for at fair value on a recurring basis as of June 30, 2021 and December 31, 2020. Financial and non-financial assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. The Company’s assessment of the significance of a particular input to the fair value measurement requires judgment, and may affect the determination of fair value for assets and liabilities and their placement within the fair

value hierarchy levels.

	June 30, 2021
	Total Fair Value		Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Contingent Revenue Obligation	$	23,904	$	—	$	—	$	23,904
Trading securities	$	31,189	$	29,311	$	1,878	$	—

	December 31, 2020
	Total Fair Value		Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Contingent Revenue Obligation	$	28,967	$	—	$	—	$	28,967
Trading securities	$	22,498	$	20,092	$	2,406	$	—

The following tables present a reconciliation of the financial and non-financial assets and liabilities that were accounted for at fair value on a recurring basis and that were categorized within Level 3 of the fair value hierarchy:

	December 31, 2020		Payments		Loss (Gain) Recognized in Earnings (1)		Transfer In (Out) of Level 3 Fair Value Hierarchy		June 30, 2021
Contingent Revenue Obligation	$	28,967	$	(11,396)	$	6,333	$	—	$	23,904

(1) The loss recognized in earnings resulted primarily from a decrease in the annual risk-free interest rate as of June 30, 2021.

	December 31, 2019		Payments		Loss (Gain) Recognized in Earnings (1)		Transfer In (Out) of Level 3 Fair Value Hierarchy		June 30, 2020
Contingent Revenue Obligation	$	52,427	$	(14,710)	$	(17,049)	$	—	$	20,668

(1) The gain recognized in earnings resulted primarily from a change in the forecasted future revenue associated with this obligation and an increase in annualized volatility as of June 30, 2020.

The following methods and assumptions were used to estimate the fair values of the assets and liabilities in the tables above:

Level 1 Fair Value Measurements

Trading Securities - Includes money market funds and other cash equivalents. The fair value is based on observable market data.

Level 2 Fair Value Measurements

Term Loan Credit Facility - due June 2024 - The fair value is based on the average between bid and ask prices provided by a third-party. As the fair value is based on observable market inputs and due to limited trading volume in the Term Loan Credit Facility, the Company has classified the fair value within Level 2 of the fair value hierarchy.

Trading Securities - Includes certificates of deposit, mutual funds, corporate debt securities and U.S. treasury and agency securities. The fair values of the Company’s trading securities are obtained from a third-party pricing service provider. The fair values provided by the pricing service provider are based on observable market inputs including credit spreads and broker-dealer quotes, among other inputs. The Company classifies the prices obtained from the pricing services within Level 2 of the fair value hierarchy because the underlying inputs are directly observable from active markets. However, the pricing models used entail a certain amount of subjectivity and therefore differing judgments in how the underlying inputs are modeled could result in different estimates of fair value.

Level 3 Fair Value Measurements

ABL Facility - due April 2022 - Observable transactions are not available to aid in determining the fair value of this item. Therefore, the fair value was derived by using the expected present value approach in which estimated cash flows are discounted using a risk-free interest rate adjusted for credit risk (discount rate of approximately 9% as of December 31, 2020).

LCC Note Payable, LCC Water Treatment Obligation, UMWA Funds Settlement Liability and Environmental Settlement Obligations - Observable transactions are not available to aid in determining the fair value of these items. Therefore, the fair value was derived by using the expected present value approach in which estimated cash flows are discounted using a risk-free interest rate adjusted for credit risk (discount rates of approximately 22% and 34% as of June 30, 2021 and December 31, 2020, respectively).

Contingent Revenue Obligation - The fair value of the contingent revenue obligation was estimated using a Black-Scholes pricing model and is marked to market at each reporting period with changes in value reflected in earnings. The inputs included in the Black-Scholes pricing model are the Company's forecasted future revenue, the stated royalty rate, the remaining periods in the obligation, annual risk-free interest rate based on the U.S. Constant Maturity Treasury Curve and annualized volatility. The annualized volatility was calculated by observing volatilities for comparable companies with adjustments for the Company's size and leverage. The range of significant unobservable inputs used to value the contingent revenue obligation as of June 30, 2021 and December 31, 2020, are set forth in the following table:

	June 30, 2021	December 31, 2020
Forecasted future revenue	$1.1 - $1.2 billion	$0.9 - $1.1 billion
Stated royalty rate	1.0% - 1.5%	1.0% - 1.5%
Annualized volatility	17.6% - 40.1% (29.0%)	19.4% - 52.1% (28.0%)

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Income Taxes

6 Months Ended

Jun. 30, 2021

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes

For the six months ended June 30, 2021, the Company recorded income tax expense of $3 on a loss from continuing operations before income taxes of $51,278. The income tax expense differs from the expected statutory amount primarily due to the increase in the valuation allowance and the impact of state income taxes, net of federal impact, partially offset by the permanent impact of percentage depletion deductions. As of June 30, 2021, the Company anticipates that no current federal income tax liability will be generated in 2021. For the six months ended June 30, 2020, the Company recorded income tax benefit of $2,155 on a loss from continuing operations before income taxes of $120,087. The income tax benefit differs from the expected statutory amount primarily due to the increase in valuation allowance, partially offset by the permanent impact of percentage depletion deductions, the impact of state income taxes, net of federal tax impact, and the recording of a discrete tax benefit related to the refundability of previously sequestered AMT Credits.

During the six months ended June 30, 2021, the Company recorded an increase of $6,184 to its deferred tax asset valuation allowance. The increase in the valuation allowance results from an increase in deferred tax assets for which the Company is unable to support realization. The Company currently is relying primarily on the reversal of taxable temporary differences, along with consideration of taxable income via carryback to prior years and tax planning strategies, to support the realization of deferred tax assets. For each reporting period, the Company updates its assessment regarding the realizability of its deferred tax assets, including scheduling the reversal of its deferred tax assets and liabilities, to determine the amount of valuation allowance needed. Scheduling the reversal of deferred tax asset and liability balances requires judgment and estimation. The Company believes the deferred tax liabilities relied upon as future taxable income in its assessment will reverse in the same period and jurisdiction and are of the same character as the temporary differences giving rise to the deferred tax assets that will be realized. The valuation allowance recorded represents the portion of deferred tax assets for which the Company is unable to support realization through the methods described above.

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Employee Benefit Plans

6 Months Ended

Jun. 30, 2021

Compensation Related Costs [Abstract]

Employee Benefit Plans

Employee Benefit Plans

The components of net periodic (benefit) expense other than the service cost component for the employee benefit plan obligations below are included in the line item miscellaneous income (loss), net in the Condensed Consolidated Statements of Operations.

Pension

The following table details the components of the net periodic benefit for pension obligations:

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Interest cost	$	3,362	$	4,656	$	6,784	$	9,391
Expected return on plan assets	(7,119)		(6,748)		(14,366)		(13,560)
Amortization of net actuarial loss	734		521		1,609		990
Settlement	—		63		—		1,230
Net periodic benefit	$	(3,023)	$	(1,508)	$	(5,973)	$	(1,949)

During the three months ended June 30, 2021, an annual census data actuarial revaluation of pension obligations was performed, which resulted in a decrease in the liability for pension obligations of approximately $8,838 with the offset to accumulated other comprehensive gain and a slight increase in net periodic benefit to be recognized subsequent to the revaluation date.

As a result of the recent funding relief granted under the American Rescue Plan Act, estimated contributions requirements to the pension plans were reduced relative to the Company’s previous estimates. The Company contributed $3,701 to the pension plans during the six months ended June 30, 2021 and expects to contribute $7,664 in the remainder of 2021.

Black Lung

The following table details the components of the net periodic expense for black lung obligations:

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Service cost	$	739	$	492	$	1,478	$	980
Interest cost	607		775		1,214		1,597
Expected return on plan assets	(14)		(14)		(28)		(27)
Amortization of net actuarial loss	522		286		1,044		501
Net periodic expense	$	1,854	$	1,539	$	3,708	$	3,051

Defined Contribution and Profit-Sharing Plans

During the second quarter of 2020, the Company’s matching contributions under the Alpha Metallurgical Resources (formerly Contura Energy) 401(k) Retirement Savings Plan (the “Plan”) were suspended due to weak market conditions at that time. Effective in June 2021, the Company’s matching contributions under the Plan were reinstated.

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Related Party Transactions	6 Months Ended
	Jun. 30, 2021
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions There were no material related party transactions for the six months ended June 30, 2021 or 2020.

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Commitments and Contingencies

6 Months Ended

Jun. 30, 2021

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Commitments and Contingencies

(a) General

Estimated losses from loss contingencies are accrued by a charge to income when information available indicates that it is probable that an asset has been impaired or a liability has been incurred and the amount of the loss can be reasonably estimated.

If a loss contingency is not probable or reasonably estimable, disclosure of the loss contingency is made in the Condensed Consolidated Financial Statements when it is at least reasonably possible that a loss may be incurred and that the loss could be material.

(b) Commitments and Contingencies

Commitments

The Company leases coal mining and other equipment under long-term financing and operating leases with varying terms. In addition, the Company leases mineral interests and surface rights from landowners under various terms and royalty rates.

Other Commitments

As of June 30, 2021, the Company has obligations under certain coal transportation agreements that contain minimum quantities to be shipped during contract periods from 2021 through 2022 with estimated obligations based on remaining tons to be shipped totaling $32,940 in 2022. The Company also has obligations under certain coal purchase agreements that contain minimum quantities to be purchased in the remainder of 2021 totaling an estimated $33,477, which includes an estimated $3,230 related to contractually committed fixed priced tons from vendors with historical performance resulting in less than 20% of the committed tonnage being delivered.

Contingencies

Extensive regulation of the impacts of mining on the environment and of maintaining workplace safety has had, and is expected to continue to have, a significant effect on the Company’s costs of production and results of operations. Further regulations, legislation or litigation in these areas may also cause the Company’s sales or profitability to decline by increasing costs or by hindering the Company’s ability to continue mining at existing operations or to permit new operations.

During the normal course of business, contract-related matters arise between the Company and its customers. When a loss related to such matters is considered probable and can reasonably be estimated, the Company records a liability.

As of June 30, 2021, per terms of the Cumberland Back-to-Back Coal Supply Agreements, the Company is required to purchase and sell 1,226 and 2,615 tons of coal in the remainder of 2021 and 2022 totaling $47,803 and $101,990, respectively. For the three and six months ended June 30, 2021, the Company purchased and sold 760 and 1,460 tons, respectively, totaling $29,487 and $56,553, respectively, under the Cumberland Back-to-Back Coal Supply Agreements. Cumberland Back-to-Back Coal Supply Agreements are scheduled to be fully performed by December 31, 2022.

Future Federal Income Tax Refunds

As of June 30, 2021, the Company has recorded $64,160 of current federal income tax receivable and associated interest receivable of $5,385 related to a net operating loss (“NOL”) carryback claim. Because the federal government was a creditor in the Alpha Natural Resources, Inc. bankruptcy proceedings, it is possible that the federal government could withhold some or all of the tax refund attributable to the NOL carryback claim and assert a right to set off the tax refund and associated interest receivable against its prepetition bankruptcy claims.

(c) Guarantees and Financial Instruments with Off-Balance Sheet Risk

In the normal course of business, the Company is a party to certain guarantees and financial instruments with off-balance sheet risk, such as bank letters of credit, performance or surety bonds, and other guarantees and indemnities related to the obligations of affiliated entities which are not reflected in the Company’s Condensed Consolidated Balance Sheets. However, the underlying liabilities that they secure, such as asset retirement obligations, workers’ compensation liabilities, and royalty obligations, are reflected in the Company’s Condensed Consolidated Balance Sheets.

The Company is required to provide financial assurance in order to perform the post-mining reclamation required by its mining permits, pay workers’ compensation claims under workers’ compensation laws in various states, pay federal black lung benefits, and perform certain other obligations. In order to provide the required financial assurance, the Company generally uses surety bonds for post-mining reclamation and workers’ compensation obligations. The Company can also use bank letters of credit to collateralize certain obligations.

As of June 30, 2021, the Company had $128,752 letters of credit outstanding under the Amended and Restated Asset-Based Revolving Credit Agreement. Additionally, as of June 30, 2021, the Company had $613 letters of credit outstanding

under the Credit and Security Agreement dated June 30, 2017, and related amendments, between ANR, Inc. and First Tennessee Bank National Association. On March 31, 2021, the Amended and Restated Letter of Credit Agreement dated November 9, 2018 between ANR, Inc. and Citibank, N.A. was terminated.

As of June 30, 2021, the Company had outstanding surety bonds with a total face amount of $211,694 to secure various obligations and commitments, including $30 attributable to discontinued operations. To secure the Company’s reclamation-related obligations, the Company has $42,211 of collateral supporting these obligations as of June 30, 2021.

The Company meets frequently with its surety providers and has discussions with certain providers regarding the extent of and the terms of their participation in the program. These discussions may cause the Company to shift surety bonds between providers or to alter the terms of their participation in our program. To the extent that surety bonds become unavailable or the Company’s surety bond providers require additional collateral, the Company would seek to secure its obligations with letters of credit, cash deposits or other suitable forms of collateral. The Company’s failure to maintain, or inability to acquire, surety bonds or to provide a suitable alternative would have a material adverse effect on its liquidity. These failures could result from a variety of factors including lack of availability, higher cost or unfavorable market terms of new surety bonds, and the exercise by third-party surety bond issuers of their right to refuse to renew the surety.

Amounts included in restricted cash represent cash deposits primarily invested in interest bearing accounts that are restricted as to withdrawal as required by certain agreements entered into by the Company and provide collateral to secure the following obligations which have been written on the Company’s behalf:

	June 30, 2021		December 31, 2020
Workers' compensation and black lung obligations	$	63,096	$	69,725
Reclamation-related obligations	6,989		8,445
Financial payments and other performance obligations	22,673		17,863
Contingent revenue obligation escrow	3,794		9,311
Total restricted cash	96,552		105,344
Less current portion (1)	(3,794)		(9,311)
Restricted cash, net of current portion	$	92,758	$	96,033

(1) Included within prepaid expenses and other current assets on the Company’s Condensed Consolidated Balance Sheets.

Restricted investments consist of Federal Deposit Insurance Company (“FDIC”) insured certificates of deposit, mutual funds, and U.S. treasury bills that are restricted as to withdrawal as required by certain agreements entered into by the Company and provide collateral to secure the following obligations which have been written on the Company’s behalf:

	June 30, 2021		December 31, 2020
Workers' compensation obligations	$	210	$	51
Reclamation-related obligations	29,195		22,233
Financial payments and other performance obligations	2,037		1,484
Total restricted investments (1), (2)	$	31,442	$	23,768

(1) Included within other non-current assets on the Company’s Condensed Consolidated Balance Sheets.

(2) As of June 30, 2021 and December 31, 2020, respectively, $31,189 and $22,498 are classified as trading securities and $253 and $1,270 are classified as held-to-maturity securities.

Deposits represent cash deposits held at third parties as required by certain agreements entered into by the Company to provide cash collateral to secure the following obligations which have been written on the Company’s behalf:

	June 30, 2021		December 31, 2020
Workers' compensation and black lung obligations	$	35	$	—
Reclamation-related obligations	6,027		25,633
Financial payments and other performance obligations	732		1,596
Other operating agreements	902		1,018
Total deposits (1)	$	7,696	$	28,247

(1) Included within prepaid expenses and other current assets and other non-current assets on the Company’s Condensed Consolidated Balance Sheets.

DCMWC Reauthorization Process

In July 2019, the U.S. Department of Labor (Division of Coal Mine Workers’ Compensation or “DCMWC”) began implementing a new authorization process for all self-insured coal mine operators. As requested by the DCMWC, the Company filed an application and supporting documentation for reauthorization to self-insure certain of its black lung obligations in October 2019. As a result of this application, the DCMWC notified the Company in a letter dated February 21, 2020 that the Company was reauthorized to self-insure certain of its black lung obligations for a period of one-year from February 21, 2020. The DCMWC reauthorization is contingent, however, upon the Company’s providing collateral of $65,700 to secure certain of its black lung obligations. This proposed collateral requirement is an increase from the approximate $2,600 in collateral that the Company currently provides to secure these self-insured black lung obligations. The reauthorization process provided the Company with the right to appeal the security determination in writing within 30 days of the date of the notification, which appeal period the DCMWC agreed to extend to May 22, 2020. The Company exercised this right of appeal in connection with the substantial increase in the amount of required collateral. However, there has been no substantive activity under the appeal since its filing. In February 2021, the U.S. Department of Labor withdrew its Federal Register notice seeking comments on its bulletin describing its new method of calculating collateral requirements. The Department removed the bulletin from its website in May 2021. If the Company’s appeal is unsuccessful, the Company may be required to provide additional letters of credit to receive the self-insurance reauthorization from the DCMWC or alternatively insure these black lung obligations through a third party provider that would likely also require the Company to provide collateral. Either of these outcomes could potentially reduce the Company’s liquidity.

(d) Legal Proceedings 

The Company is party to legal proceedings from time to time. These proceedings, as well as governmental examinations, could involve various business units and a variety of claims including, but not limited to, contract disputes, personal injury claims, property damage claims (including those resulting from blasting, trucking and flooding), environmental and safety issues, securities-related matters and employment matters. While some legal matters may specify the damages claimed by the plaintiffs, many seek an unquantified amount of damages. Even when the amount of damages claimed against the Company or its subsidiaries is stated, (i) the claimed amount may be exaggerated or unsupported; (ii) the claim may be based on a novel legal theory or involve a large number of parties; (iii) there may be uncertainty as to the likelihood of a class being certified or the ultimate size of the class; (iv) there may be uncertainty as to the outcome of pending appeals or motions; and/or (v) there may be significant factual issues to be resolved. As a result, if such legal matters arise in the future, the Company may be unable to estimate a range of possible loss for matters that have not yet progressed sufficiently through discovery and development of important factual information and legal issues. The Company records accruals based on an estimate of the ultimate outcome of these matters, but these estimates can be difficult to determine and involve significant judgment.

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Segment Information

6 Months Ended

Jun. 30, 2021

Segment Reporting [Abstract]

Segment Information

Segment Information The Company extracts, processes and markets met and thermal coal from deep and surface mines for sale to steel and coke producers, industrial customers, and electric utilities. The Company conducts mining operations only in the United States with mines in Central Appalachia (“CAPP”). The Company has one reportable segment: Met, which consists of five active mines and two preparation plants in Virginia, fourteen active mines and five preparation plants in West Virginia, as well as expenses associated with certain idled/closed mines. Prior to the first quarter of 2021, the Company had two reportable segments: CAPP - Met and CAPP - Thermal. As a result of the Company’s continued strategic focus on the production of metallurgical coal and the reduction of thermal mining operations, the Company re-evaluated its previous conclusions with respect to its segment

reporting during the first quarter of 2021. To conform to the current period reportable segments presentation, the prior periods have been restated to reflect the change in reportable segments.

In addition to the one reportable segment, the All Other category includes general corporate overhead and corporate assets and liabilities, the former CAPP - Thermal operations consisting of one active mine and one preparation plant in West Virginia, and the elimination of certain intercompany activity, as well as expenses associated with certain idled/closed mines.

Reportable segment operating results are regularly reviewed by the Chief Operating Decision Maker (“CODM”), who is the Chief Executive Officer of the Company.

Segment operating results and capital expenditures for the three months ended June 30, 2021 and 2020 were as follows: 

	Three Months Ended June 30, 2021
	Met		All Other		Consolidated
Total revenues	$	377,937	$	17,338	$	395,275
Depreciation, depletion, and amortization	$	25,686	$	1,618	$	27,304
Amortization of acquired intangibles, net	$	2,635	$	(82)	$	2,553
Adjusted EBITDA	$	46,786	$	(6,869)	$	39,917
Capital expenditures	$	17,203	$	441	$	17,644

	Three Months Ended June 30, 2020
	Met		All Other		Consolidated
Total revenues	$	316,534	$	37,406	$	353,940
Depreciation, depletion, and amortization	$	38,779	$	8,290	$	47,069
Amortization of acquired intangibles, net	$	2,759	$	(878)	$	1,881
Adjusted EBITDA	$	17,518	$	(10,373)	$	7,145
Capital expenditures	$	27,647	$	3,011	$	30,658

Segment operating results and capital expenditures for the six months ended June 30, 2021 and 2020 were as follows: 

	Six Months Ended June 30, 2021
	Met		All Other		Consolidated
Total revenues	$	737,815	$	43,713	$	781,528
Depreciation, depletion, and amortization	$	52,222	$	3,520	$	55,742
Amortization of acquired intangibles, net	$	6,686	$	(264)	$	6,422
Adjusted EBITDA	$	79,368	$	(10,567)	$	68,801
Capital expenditures	$	37,526	$	513	$	38,039

	Six Months Ended June 30, 2020
	Met		All Other		Consolidated
Total revenues	$	679,293	$	77,451	$	756,744
Depreciation, depletion, and amortization	$	80,501	$	14,184	$	94,685
Amortization of acquired intangibles, net	$	5,340	$	(2,948)	$	2,392
Adjusted EBITDA	$	86,636	$	(22,994)	$	63,642
Capital expenditures	$	60,781	$	6,140	$	66,921

The following tables present a reconciliation of net loss to Adjusted EBITDA for the three months ended June 30, 2021 and 2020:

	Three Months Ended June 30, 2021
	Met		All Other		Consolidated
Net loss from continuing operations	$	15,042	$	(33,632)	$	(18,590)
Interest expense	40		17,922		17,962
Interest income	—		(104)		(104)
Income tax expense	—		8		8
Depreciation, depletion and amortization	25,686		1,618		27,304
Non-cash stock compensation expense	6		973		979
Mark-to-market adjustment - acquisition-related obligations	—		3,157		3,157
Accretion on asset retirement obligations	3,377		3,271		6,648
Amortization of acquired intangibles, net	2,635		(82)		2,553
Adjusted EBITDA	$	46,786	$	(6,869)	$	39,917

	Three Months Ended June 30, 2020
	Met		All Other		Consolidated
Net loss from continuing operations	$	(27,097)	$	(54,649)	$	(81,746)
Interest expense	(377)		19,693		19,316
Interest income	(3)		(5,527)		(5,530)
Income tax expense	—		33		33
Depreciation, depletion and amortization	38,779		8,290		47,069
Non-cash stock compensation expense	(94)		1,138		1,044
Mark-to-market adjustment - acquisition-related obligations	—		(2,052)		(2,052)
Accretion on asset retirement obligations	3,551		3,018		6,569
Asset impairment and restructuring (1)	—		20,498		20,498
Loss on partial settlement of benefit obligations	—		63		63
Amortization of acquired intangibles, net	2,759		(878)		1,881
Adjusted EBITDA	$	17,518	$	(10,373)	$	7,145

(1) Refer to Note 8 for additional information on asset impairment and restructuring during the period.

The following tables present a reconciliation of net loss to Adjusted EBITDA for the six months ended June 30, 2021 and 2020:

	Six Months Ended June 30, 2021
	Met		All Other		Consolidated
Net loss from continuing operations	$	13,604	$	(64,885)	$	(51,281)
Interest expense	83		35,869		35,952
Interest income	(5)		(263)		(268)
Income tax expense	—		3		3
Depreciation, depletion and amortization	52,222		3,520		55,742
Non-cash stock compensation expense	16		3,147		3,163
Mark-to-market adjustment - acquisition-related obligations	—		6,333		6,333
Accretion on asset retirement obligations	6,762		6,534		13,296
Asset impairment and restructuring (1)	—		(561)		(561)
Amortization of acquired intangibles, net	6,686		(264)		6,422
Adjusted EBITDA	$	79,368	$	(10,567)	$	68,801

(1) Refer to Note 8 for additional information on asset impairment and restructuring during the period.

	Six Months Ended June 30, 2020
	Met		All Other		Consolidated
Net loss from continuing operations	$	(38,682)	$	(79,250)	$	(117,932)
Interest expense	(1,306)		38,798		37,492
Interest income	(61)		(6,437)		(6,498)
Income tax benefit	—		(2,155)		(2,155)
Depreciation, depletion and amortization	80,501		14,184		94,685
Non-cash stock compensation expense	305		2,817		3,122
Mark-to-market adjustment - acquisition-related obligations	—		(17,049)		(17,049)
Accretion on asset retirement obligations	7,087		6,121		13,208
Asset impairment and restructuring (1)	32,951		21,256		54,207
Management restructuring costs (2)	501		439		940
Loss on partial settlement of benefit obligations	—		1,230		1,230
Amortization of acquired intangibles, net	5,340		(2,948)		2,392
Adjusted EBITDA	$	86,636	$	(22,994)	$	63,642

(1) Refer to Note 8 for additional information on asset impairment and restructuring during the period.

(2) Management restructuring costs are related to severance expense associated with senior management changes in the three months ended March 31, 2020.

No asset information has been disclosed as the CODM does not regularly review asset information by reportable segment.

The Company markets produced, processed and purchased coal to customers in the United States and in international markets, primarily India, Brazil, and Turkey. Revenue is tracked within the Company’s accounting records based on the product destination. Export coal revenues were the following:

	Three Months Ended June 30,						Six Months Ended June 30,
	2021			2020			2021			2020
Total coal revenues	$	393,458		$	353,115		$	778,910		$	754,575
Export coal revenues	$	256,017		$	240,662		$	499,800		$	492,116
Export coal revenues as % of total coal revenues	65		%	68		%	64		%	65		%
Countries with export coal revenue exceeding 10% of total revenue	India			India, Turkey, Brazil			India, Brazil			India, Brazil

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Business and Basis of Presentation (Policies)

6 Months Ended

Jun. 30, 2021

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Presentation

Basis of Presentation

Together, the condensed consolidated statements of operations, comprehensive loss, balance sheets, cash flows and stockholders’ equity for the Company are referred to as the “Condensed Consolidated Financial Statements.” The Condensed Consolidated Financial Statements are also referenced across periods as “Condensed Consolidated Statements of Operations,” “Condensed Consolidated Statements of Comprehensive Loss,” “Condensed Consolidated Balance Sheets,” “Condensed Consolidated Statements of Cash Flows,” and “Condensed Consolidated Statements of Stockholders’ Equity.” The Company’s former Northern Appalachia (“NAPP”) operations results of operations and financial position are reported as discontinued operations in the Condensed Consolidated Financial Statements. The historical information in the accompanying Notes to the Condensed Consolidated Financial Statements has been restated to reflect the effects of the Company’s former NAPP operations being reported as discontinued operations in the Condensed Consolidated Financial Statements. Refer to Note 2 for further information on discontinued operations.

The Condensed Consolidated Financial Statements include all wholly-owned subsidiaries’ results of operations for the three and six months ended June 30, 2021 and 2020. All significant intercompany transactions have been eliminated in consolidation.

The accompanying interim Condensed Consolidated Financial Statements are unaudited and have been prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”) and in accordance with the rules and regulations of the United States Securities and Exchange Commission (“SEC”) for Form 10-Q. Such rules and regulations allow the omission of certain information and footnote disclosures normally included in the financial statements prepared in accordance with U.S. GAAP as long as the financial statements are not misleading. In the opinion of management, these interim Condensed Consolidated Financial Statements reflect all normal and recurring adjustments necessary for a fair presentation of the results for the periods presented. Results of operations for the three and six months ended June 30, 2021 are not necessarily indicative of the results to be expected for the year ending December 31, 2021 or any other period. These interim Condensed Consolidated Financial Statements should be read in conjunction with the Company’s Consolidated Financial Statements and related notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2020.

Liquidity Risk and Uncertainties

Liquidity Risks and UncertaintiesThe Company believes it will have sufficient liquidity to meet its working capital requirements, anticipated capital expenditures, debt service requirements, acquisition-related obligations, and reclamation obligations for the 12 months subsequent to the issuance of these financial statements. However, the Company may need to raise additional funds if market conditions deteriorate and may not be able to do so in a timely fashion, or at all. The Company relies on a number of assumptions in budgeting for future activities. These include the costs for mine development to sustain capacity of its operating mines, cash flows from operations, effects of regulation and taxes by governmental agencies, mining technology improvements and reclamation costs. These assumptions are inherently subject to significant business, political, economic, regulatory, environmental and competitive uncertainties, contingencies and risks, all of which are difficult to predict and many of which are beyond the Company’s control. Therefore, the Company’s cash on hand and from future operations will be subject to any significant changes in these assumptions.

Recently Adopted Accounting Guidance

Recently Adopted Accounting Guidance

Convertible Debt and Contracts in Entity’s Own Equity: In August 2020, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2020-06, Debt—Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging—Contracts in Entity’s Own Equity (Subtopic 815-40) (“ASU 2020-06”). The amendments in this update simplify the accounting for certain financial instruments with characteristics of liabilities and equity, including convertible instruments and contracts in an entity’s own equity, such as the Company’s outstanding Series A warrants. For public business entities, the standard is effective for fiscal years beginning after December 15, 2021, with early adoption permitted. The Company adopted ASU 2020-06 during the first quarter of 2021. The adoption of this ASU did not have a material impact on the Company's Condensed Consolidated Financial Statements and related disclosures.

Reference Rate Reform: In January 2021, the FASB issued ASU 2021-01, Reference Rate Reform (Topic 848) (“ASU 2021-01”). The amendments in this update clarify that certain optional expedients and exceptions in Topic 848 for contract modifications and hedge accounting apply to derivatives that are affected by the discounting transition. For all entities, the standard is effective immediately. The Company adopted ASU 2021-01 during the first quarter of 2021. The adoption of this ASU did not have a material impact on the Company's Condensed Consolidated Financial Statements and related disclosures.

Certain Modifications or Exchanges of Freestanding Equity-Classified Written Call Options: In May 2021, the FASB issued ASU 2021-04, Earnings Per Share (Topic 260), Debt—Modifications and Extinguishments (Subtopic 470-50), Compensation—Stock Compensation (Topic 718), and Derivatives and Hedging—Contracts in Entity’s Own Equity (Subtopic 815-40) (“ASU 2021-04”). The amendments in this update provide final guidance that requires issuers to account for modifications or exchanges of freestanding equity-classified written call options, such as the Company’s outstanding Series A warrants, that remain equity classified after the modification or exchange based on the economic substance of the modification or exchange. This ASU addresses the diversity in practice in issuers’ accounting by providing a principles-based framework to determine whether an issuer should recognize the modification or exchange as 1) an adjustment to equity and, if so, the related earnings per share effects, if any, or 2) an expense and, if so, the manner and pattern of recognition. For all entities, the standard is effective for fiscal years beginning after December 15, 2021, with early adoption permitted. The Company adopted ASU 2021-04 during the second quarter of 2021. The adoption of this ASU did not have a material impact on the Company's Condensed Consolidated Financial Statements and related disclosures.

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Discontinued Operations (Tables)

6 Months Ended

Jun. 30, 2021

Discontinued Operations and Disposal Groups [Abstract]

Discontinued Operations

The major components of loss from discontinued operations before income taxes in the Condensed Consolidated Statements of Operations for the three and six months ended June 30, 2020 are as follows:

	Three Months Ended June 30, 2020 (1)		Six Months Ended June 30, 2020 (1)
Revenues:
Total revenues	$	57,898	$	125,554
Costs and expenses:
Cost of coal sales (exclusive of items shown separately below)	47,843		110,265
Depreciation, depletion and amortization	2,193		9,042
Accretion on asset retirement obligations	735		1,471
Selling, general and administrative expenses (2)	169		1,387
Asset impairment and restructuring (3)	163,675		163,675
Other non-major income items, net	(162)		(109)
Loss from discontinued operations before income taxes	$	(156,555)	$	(160,177)

(1) Includes minor residual activity related to the Company’s former Powder River Basin (“PRB”) operations.

(2) Represents professional and legal fees.

(3) Refer to Note 8 for additional information on asset impairment and restructuring during the periods.

The major components of assets and liabilities that are classified as discontinued operations in the Condensed Consolidated Balance Sheets are as follows:

	June 30, 2021		December 31, 2020
Assets:
Trade accounts receivable, net of allowance for doubtful accounts	$	—	$	7,504
Prepaid expenses and other current assets	$	2,157	$	3,431
Other non-current assets (1)	$	9,477	$	9,473
Liabilities:
Trade accounts payable, accrued expenses and other current liabilities	$	7,101	$	12,306
Workers’ compensation and black lung obligations, non-current	$	26,205	$	27,799
Other non-current liabilities	$	1,291	$	1,291

(1) Primarily comprised of workers’ compensation insurance receivable and long-term restricted investments collateralizing workers’ compensation obligations.

The major components of cash flows related to discontinued operations are as follows:

	Six Months Ended June 30, 2020
Depreciation, depletion and amortization	$	9,042
Capital expenditures	$	24,169
Other significant operating non-cash items related to discontinued operations:
Accretion on asset retirement obligations	$	1,471
Asset impairment and restructuring	$	163,675

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Revenue (Tables)

6 Months Ended

Jun. 30, 2021

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

The following tables disaggregate the Company’s coal revenues by product category and by market to depict how the nature, amount, timing, and uncertainty of the Company’s coal revenues and cash flows are affected by economic factors:

	Three Months Ended June 30, 2021
	Met Coal		Thermal Coal		Total
Export coal revenues	$	250,324	$	5,693	$	256,017
Domestic coal revenues	105,235		32,206		137,441
Total coal revenues	$	355,559	$	37,899	$	393,458

	Three Months Ended June 30, 2020
	Met Coal		Thermal Coal		Total
Export coal revenues	$	230,293	$	10,369	$	240,662
Domestic coal revenues	82,903		29,550		112,453
Total coal revenues	$	313,196	$	39,919	$	353,115

	Six Months Ended June 30, 2021
	Met		Thermal		Total
Export coal revenues	$	493,076	$	6,724	$	499,800
Domestic coal revenues	205,477		73,633		279,110
Total coal revenues	$	698,553	$	80,357	$	778,910

	Six Months Ended June 30, 2020
	Met		Thermal		Total
Export coal revenues	$	474,364	$	17,752	$	492,116
Domestic coal revenues	197,591		64,868		262,459
Total coal revenues	$	671,955	$	82,620	$	754,575

Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction

The following table includes estimated revenue expected to be recognized in the future related to performance obligations that are unsatisfied as of June 30, 2021:

	Remainder of 2021		2022		2023		2024		2025		Total
Estimated coal revenues	$	65,852	$	50,935	$	—	$	—	$	—	$	116,787

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Accumulated Other Comprehensive Loss (Tables)

6 Months Ended

Jun. 30, 2021

Equity [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss)

The following tables summarize the changes to accumulated other comprehensive loss during the six months ended June 30, 2021 and 2020:

	Balance January 1, 2021		Other comprehensive income before reclassifications		Amounts reclassified from accumulated other comprehensive loss		Balance June 30, 2021
Employee benefit costs	$	(111,985)	$	8,838	$	2,826	$	(100,321)

	Balance January 1, 2020		Other comprehensive loss before reclassifications		Amounts reclassified from accumulated other comprehensive loss		Balance June 30, 2020
Employee benefit costs	$	(58,616)	$	(14,154)	$	3,023	$	(69,747)

The following table summarizes the amounts reclassified from accumulated other comprehensive loss and the Condensed Consolidated Statements of Operations line items affected by the reclassification during the three and six months ended June 30, 2021 and 2020:

Details about accumulated other comprehensive loss components	Amounts reclassified from accumulated other comprehensive loss								Affected line item in the Condensed Consolidated Statements of Operations
	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Employee benefit costs:
Amortization of net actuarial loss (1)	$	1,342	$	934	$	2,826	$	1,728	Miscellaneous income (loss), net
Settlement (1)	—		95		—		1,295		Miscellaneous income (loss), net
Total before income tax	$	1,342	$	1,029	$	2,826	$	3,023
Income tax	—		—		—		—		Income tax (expense) benefit
Total, net of income tax	$	1,342	$	1,029	$	2,826	$	3,023

(1) These accumulated other comprehensive loss components are included in the computation of net periodic benefit costs for certain employee benefit plans. Refer to Note 14.

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Inventories, net (Tables)

6 Months Ended

Jun. 30, 2021

Inventory Disclosure [Abstract]

Schedule of Inventory

Inventories, net consisted of the following: 

	June 30, 2021		December 31, 2020
Raw coal	$	21,071	$	15,084
Saleable coal	96,768		69,262
Materials, supplies and other, net	26,577		23,705
Total inventories, net	$	144,416	$	108,051

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Acquired Intangibles (Tables)

6 Months Ended

Jun. 30, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Intangibles

The balances and respective balance sheet classifications of such assets and liabilities as of June 30, 2021 and December 31, 2020, net of accumulated amortization, are set forth in the following tables:

	June 30, 2021
	Assets (1)		Liabilities (2)		Net Total
Coal supply agreements, net	$	—	$	(163)	$	(163)
Acquired mine permits, net	81,610		—		81,610
Total	$	81,610	$	(163)	$	81,447

	December 31, 2020
	Assets (1)		Liabilities (2)		Net Total
Coal supply agreements, net	$	—	$	(327)	$	(327)
Acquired mine permits, net	88,196		—		88,196
Total	$	88,196	$	(327)	$	87,869

(1) Included within other acquired intangibles, net of accumulated amortization on the Company’s Condensed Consolidated Balance Sheets.

(2) Included within other non-current liabilities on the Company’s Condensed Consolidated Balance Sheets.

The following table details the amortization of the Company’s acquired intangibles included within amortization of acquired intangibles, net in the Condensed Consolidated Statements of Operations:

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Amortization of mine permits	$	2,635	$	3,320	$	6,586	$	6,648
Amortization of above-market coal supply agreements	$	—	$	—	$	—	$	18
Amortization of below-market coal supply agreements	(82)		(1,439)		(164)		(4,274)
Net income	$	(82)	$	(1,439)	$	(164)	$	(4,256)

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Asset Impairment and Restructuring (Tables)

6 Months Ended

Jun. 30, 2021

Restructuring and Related Activities [Abstract]

Details of Impairment of Long-Lived Assets Held and Used by Asset

The following tables present the details of the long-lived asset impairment during the three and six months ended June 30, 2020:

	Three Months Ended June 30, 2020		Six Months Ended June 30, 2020
Continuing operations:
Met	$	—	$	32,951
All Other	17,390		18,148
Total from continuing operations	$	17,390	$	51,099
Discontinued operations:	$	144,348	$	144,348
Total long-lived asset impairment:	$	161,738	$	195,447

	Three Months Ended June 30, 2020		Six Months Ended June 30, 2020
Continuing operations:
Mineral rights, net	$	2,241	$	24,066
Property, plant, and equipment, net	6,496		12,562
Acquired mine permits, net	8,653		14,471
Total from continuing operations	$	17,390	$	51,099
Discontinued operations:
Mineral rights, net	$	16,364	$	16,364
Property, plant, and equipment, net	127,984		127,984
Total from discontinued operations	$	144,348	$	144,348
Total long-lived asset impairment:
Mineral rights, net	$	18,605	$	40,430
Property, plant, and equipment, net	134,480		140,546
Acquired mine permits, net	8,653		14,471
Total long-lived asset impairment	$	161,738	$	195,447

Schedule of Restructuring Expense

As a result of the strategic actions discussed above, the Company recorded restructuring expense during the three and six months ended June 30, 2020 as follows:

	Three and Six Months Ended June 30, 2020
	Total Restructuring		Continuing Operations (3)		Discontinued Operations
Severance and employee-related benefits (1)	$	20,553	$	2,301	$	18,252
Other costs (2)	1,882		807		1,075
Total restructuring expense	$	22,435	$	3,108	$	19,327

(1) Severance and employee-related benefits were considered probable and estimable based on provisions of contractual agreements and existing employee benefit plans.

(2) Includes accelerated amortization of deferred longwall move expenses of $668, allowance for advanced mining royalties of $407, and allowance for obsolete materials and supplies inventory of $807.

(3) Total restructuring expense from continuing operations of $3,108 was recorded within the All Other category and affected Accrued expenses and other current liabilities, Other non-current liabilities, and Inventories, net.

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Long-Term Debt (Tables)

6 Months Ended

Jun. 30, 2021

Debt Disclosure [Abstract]

Schedule of Long-term Debt Instruments

Long-term debt consisted of the following: 

	June 30, 2021		December 31, 2020
Term Loan Credit Facility - due June 2024	$	550,564	$	553,373
ABL Facility - due April 2022	—		3,350
LCC Note Payable	27,500		27,500
LCC Water Treatment Obligation	6,250		6,875
Other (1)	6,665		8,475
Debt discount and issuance costs	(11,312)		(17,046)
Total long-term debt	579,667		582,527
Less current portion	(29,404)		(28,830)
Long-term debt, net of current portion	$	550,263	$	553,697

(1) Includes financing leases.

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Acquisition-Related Obligations (Tables)

6 Months Ended

Jun. 30, 2021

Fair Value Disclosures [Abstract]

Schedule of Acquisition-Related Obligations

Acquisition-related obligations consisted of the following:

	June 30, 2021		December 31, 2020
Contingent Revenue Obligation	$	23,904	$	28,967
Environmental Settlement Obligations	9,702		10,391
UMWA Funds Settlement Liability	2,000		2,000
Discount	(768)		(1,491)
Total acquisition-related obligations	34,838		39,867
Less current portion	(22,866)		(19,099)
Acquisition-related obligations, net of current portion	$	11,972	$	20,768

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Asset Retirement Obligations (Tables)

6 Months Ended

Jun. 30, 2021

Asset Retirement Obligation Disclosure [Abstract]

Summary of Changes in Asset Retirement Obligations

The following table summarizes the changes in asset retirement obligations for the six months ended June 30, 2021:

Total asset retirement obligations at December 31, 2020	$	165,064
Accretion for the period	13,296
Revisions in estimated cash flows	(17)
Expenditures for the period	(8,592)
Total asset retirement obligations at June 30, 2021	169,751
Less current portion (1)	(28,911)
Long-term portion	$	140,840

(1)    Included within accrued expenses and other current liabilities on the Company’s Condensed Consolidated Balance Sheets.

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Fair Value of Financial Instruments and Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2021

Fair Value Disclosures [Abstract]

Fair Value Measurements, Nonrecurring

The following tables set forth by level, within the fair value hierarchy, the Company’s long-term debt at fair value as of June 30, 2021 and December 31, 2020:

	June 30, 2021
	Carrying      Amount (1)		Total Fair Value		Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Term Loan Credit Facility - due June 2024	$	541,572	$	488,626	$	—	$	488,626	$	—
LCC Note Payable	26,046		25,172		—		—		25,172
LCC Water Treatment Obligation	5,384		4,945		—		—		4,945
Total long-term debt	$	573,002	$	518,743	$	—	$	488,626	$	30,117

	December 31, 2020
	Carrying      Amount (1)		Total Fair Value		Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Term Loan Credit Facility - due June 2024	$	540,643	$	379,614	$	—	$	379,614	$	—
ABL Facility - due April 2022	3,350		3,057		—		—		3,057
LCC Note Payable	24,423		20,328		—		—		20,328
LCC Water Treatment Obligation	5,636		4,281		—		—		4,281
Total long-term debt	$	574,052	$	407,280	$	—	$	379,614	$	27,666

(1) Net of debt discounts and debt issuance costs.

The following tables set forth by level, within the fair value hierarchy, the Company’s acquisition-related obligations at fair value as of June 30, 2021 and December 31, 2020:

	June 30, 2021
	Carrying      Amount (1)		Total Fair Value		Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
UMWA Funds Settlement Liability	$	1,823	$	1,797	$	—	$	—	$	1,797
Environmental Settlement Obligations	9,111		8,764		—		—		8,764
Total acquisition-related obligations	$	10,934	$	10,561	$	—	$	—	$	10,561

	December 31, 2020
	Carrying      Amount (1)		Total Fair Value		Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
UMWA Funds Settlement Liability	$	1,662	$	1,426	$	—	$	—	$	1,426
Environmental Settlement Obligations	9,237		7,760		—		—		7,760
Total acquisition-related obligations	$	10,899	$	9,186	$	—	$	—	$	9,186

(1) Net of discounts.

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis

The following table sets forth by level, within the fair value hierarchy, the Company’s financial and non-financial assets and liabilities that were accounted for at fair value on a recurring basis as of June 30, 2021 and December 31, 2020. Financial and non-financial assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. The Company’s assessment of the significance of a particular input to the fair value measurement requires judgment, and may affect the determination of fair value for assets and liabilities and their placement within the fair

value hierarchy levels.

	June 30, 2021
	Total Fair Value		Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Contingent Revenue Obligation	$	23,904	$	—	$	—	$	23,904
Trading securities	$	31,189	$	29,311	$	1,878	$	—

	December 31, 2020
	Total Fair Value		Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Contingent Revenue Obligation	$	28,967	$	—	$	—	$	28,967
Trading securities	$	22,498	$	20,092	$	2,406	$	—

The following tables present a reconciliation of the financial and non-financial assets and liabilities that were accounted for at fair value on a recurring basis and that were categorized within Level 3 of the fair value hierarchy:

	December 31, 2020		Payments		Loss (Gain) Recognized in Earnings (1)		Transfer In (Out) of Level 3 Fair Value Hierarchy		June 30, 2021
Contingent Revenue Obligation	$	28,967	$	(11,396)	$	6,333	$	—	$	23,904

(1) The loss recognized in earnings resulted primarily from a decrease in the annual risk-free interest rate as of June 30, 2021.

	December 31, 2019		Payments		Loss (Gain) Recognized in Earnings (1)		Transfer In (Out) of Level 3 Fair Value Hierarchy		June 30, 2020
Contingent Revenue Obligation	$	52,427	$	(14,710)	$	(17,049)	$	—	$	20,668

The range of significant unobservable inputs used to value the contingent revenue obligation as of June 30, 2021 and December 31, 2020, are set forth in the following table:

	June 30, 2021	December 31, 2020
Forecasted future revenue	$1.1 - $1.2 billion	$0.9 - $1.1 billion
Stated royalty rate	1.0% - 1.5%	1.0% - 1.5%
Annualized volatility	17.6% - 40.1% (29.0%)	19.4% - 52.1% (28.0%)

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Employee Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2021

Compensation Related Costs [Abstract]

Schedule of Net Periodic Benefit Cost

The following table details the components of the net periodic benefit for pension obligations:

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Interest cost	$	3,362	$	4,656	$	6,784	$	9,391
Expected return on plan assets	(7,119)		(6,748)		(14,366)		(13,560)
Amortization of net actuarial loss	734		521		1,609		990
Settlement	—		63		—		1,230
Net periodic benefit	$	(3,023)	$	(1,508)	$	(5,973)	$	(1,949)

The following table details the components of the net periodic expense for black lung obligations:

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Service cost	$	739	$	492	$	1,478	$	980
Interest cost	607		775		1,214		1,597
Expected return on plan assets	(14)		(14)		(28)		(27)
Amortization of net actuarial loss	522		286		1,044		501
Net periodic expense	$	1,854	$	1,539	$	3,708	$	3,051

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Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2021

Commitments and Contingencies Disclosure [Abstract]

Schedule of Restricted Cash Deposits

Amounts included in restricted cash represent cash deposits primarily invested in interest bearing accounts that are restricted as to withdrawal as required by certain agreements entered into by the Company and provide collateral to secure the following obligations which have been written on the Company’s behalf:

	June 30, 2021		December 31, 2020
Workers' compensation and black lung obligations	$	63,096	$	69,725
Reclamation-related obligations	6,989		8,445
Financial payments and other performance obligations	22,673		17,863
Contingent revenue obligation escrow	3,794		9,311
Total restricted cash	96,552		105,344
Less current portion (1)	(3,794)		(9,311)
Restricted cash, net of current portion	$	92,758	$	96,033

(1) Included within prepaid expenses and other current assets on the Company’s Condensed Consolidated Balance Sheets.

Schedule of Restricted Investments and Deposit Assets

Restricted investments consist of Federal Deposit Insurance Company (“FDIC”) insured certificates of deposit, mutual funds, and U.S. treasury bills that are restricted as to withdrawal as required by certain agreements entered into by the Company and provide collateral to secure the following obligations which have been written on the Company’s behalf:

	June 30, 2021		December 31, 2020
Workers' compensation obligations	$	210	$	51
Reclamation-related obligations	29,195		22,233
Financial payments and other performance obligations	2,037		1,484
Total restricted investments (1), (2)	$	31,442	$	23,768

(1) Included within other non-current assets on the Company’s Condensed Consolidated Balance Sheets.

(2) As of June 30, 2021 and December 31, 2020, respectively, $31,189 and $22,498 are classified as trading securities and $253 and $1,270 are classified as held-to-maturity securities.

Deposits represent cash deposits held at third parties as required by certain agreements entered into by the Company to provide cash collateral to secure the following obligations which have been written on the Company’s behalf:

	June 30, 2021		December 31, 2020
Workers' compensation and black lung obligations	$	35	$	—
Reclamation-related obligations	6,027		25,633
Financial payments and other performance obligations	732		1,596
Other operating agreements	902		1,018
Total deposits (1)	$	7,696	$	28,247

(1) Included within prepaid expenses and other current assets and other non-current assets on the Company’s Condensed Consolidated Balance Sheets.

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Segment Information (Tables)

6 Months Ended

Jun. 30, 2021

Segment Reporting [Abstract]

Schedule of Segment Operating Results and Capital Expenditures

Segment operating results and capital expenditures for the three months ended June 30, 2021 and 2020 were as follows: 

	Three Months Ended June 30, 2021
	Met		All Other		Consolidated
Total revenues	$	377,937	$	17,338	$	395,275
Depreciation, depletion, and amortization	$	25,686	$	1,618	$	27,304
Amortization of acquired intangibles, net	$	2,635	$	(82)	$	2,553
Adjusted EBITDA	$	46,786	$	(6,869)	$	39,917
Capital expenditures	$	17,203	$	441	$	17,644

	Three Months Ended June 30, 2020
	Met		All Other		Consolidated
Total revenues	$	316,534	$	37,406	$	353,940
Depreciation, depletion, and amortization	$	38,779	$	8,290	$	47,069
Amortization of acquired intangibles, net	$	2,759	$	(878)	$	1,881
Adjusted EBITDA	$	17,518	$	(10,373)	$	7,145
Capital expenditures	$	27,647	$	3,011	$	30,658

Segment operating results and capital expenditures for the six months ended June 30, 2021 and 2020 were as follows: 

	Six Months Ended June 30, 2021
	Met		All Other		Consolidated
Total revenues	$	737,815	$	43,713	$	781,528
Depreciation, depletion, and amortization	$	52,222	$	3,520	$	55,742
Amortization of acquired intangibles, net	$	6,686	$	(264)	$	6,422
Adjusted EBITDA	$	79,368	$	(10,567)	$	68,801
Capital expenditures	$	37,526	$	513	$	38,039

	Six Months Ended June 30, 2020
	Met		All Other		Consolidated
Total revenues	$	679,293	$	77,451	$	756,744
Depreciation, depletion, and amortization	$	80,501	$	14,184	$	94,685
Amortization of acquired intangibles, net	$	5,340	$	(2,948)	$	2,392
Adjusted EBITDA	$	86,636	$	(22,994)	$	63,642
Capital expenditures	$	60,781	$	6,140	$	66,921

Export coal revenues were the following:

	Three Months Ended June 30,						Six Months Ended June 30,
	2021			2020			2021			2020
Total coal revenues	$	393,458		$	353,115		$	778,910		$	754,575
Export coal revenues	$	256,017		$	240,662		$	499,800		$	492,116
Export coal revenues as % of total coal revenues	65		%	68		%	64		%	65		%
Countries with export coal revenue exceeding 10% of total revenue	India			India, Turkey, Brazil			India, Brazil			India, Brazil

Reconciliation of Net Income (Loss) to Adjusted EBITDA

The following tables present a reconciliation of net loss to Adjusted EBITDA for the three months ended June 30, 2021 and 2020:

	Three Months Ended June 30, 2021
	Met		All Other		Consolidated
Net loss from continuing operations	$	15,042	$	(33,632)	$	(18,590)
Interest expense	40		17,922		17,962
Interest income	—		(104)		(104)
Income tax expense	—		8		8
Depreciation, depletion and amortization	25,686		1,618		27,304
Non-cash stock compensation expense	6		973		979
Mark-to-market adjustment - acquisition-related obligations	—		3,157		3,157
Accretion on asset retirement obligations	3,377		3,271		6,648
Amortization of acquired intangibles, net	2,635		(82)		2,553
Adjusted EBITDA	$	46,786	$	(6,869)	$	39,917

	Three Months Ended June 30, 2020
	Met		All Other		Consolidated
Net loss from continuing operations	$	(27,097)	$	(54,649)	$	(81,746)
Interest expense	(377)		19,693		19,316
Interest income	(3)		(5,527)		(5,530)
Income tax expense	—		33		33
Depreciation, depletion and amortization	38,779		8,290		47,069
Non-cash stock compensation expense	(94)		1,138		1,044
Mark-to-market adjustment - acquisition-related obligations	—		(2,052)		(2,052)
Accretion on asset retirement obligations	3,551		3,018		6,569
Asset impairment and restructuring (1)	—		20,498		20,498
Loss on partial settlement of benefit obligations	—		63		63
Amortization of acquired intangibles, net	2,759		(878)		1,881
Adjusted EBITDA	$	17,518	$	(10,373)	$	7,145

(1) Refer to Note 8 for additional information on asset impairment and restructuring during the period.

The following tables present a reconciliation of net loss to Adjusted EBITDA for the six months ended June 30, 2021 and 2020:

	Six Months Ended June 30, 2021
	Met		All Other		Consolidated
Net loss from continuing operations	$	13,604	$	(64,885)	$	(51,281)
Interest expense	83		35,869		35,952
Interest income	(5)		(263)		(268)
Income tax expense	—		3		3
Depreciation, depletion and amortization	52,222		3,520		55,742
Non-cash stock compensation expense	16		3,147		3,163
Mark-to-market adjustment - acquisition-related obligations	—		6,333		6,333
Accretion on asset retirement obligations	6,762		6,534		13,296
Asset impairment and restructuring (1)	—		(561)		(561)
Amortization of acquired intangibles, net	6,686		(264)		6,422
Adjusted EBITDA	$	79,368	$	(10,567)	$	68,801

(1) Refer to Note 8 for additional information on asset impairment and restructuring during the period.

	Six Months Ended June 30, 2020
	Met		All Other		Consolidated
Net loss from continuing operations	$	(38,682)	$	(79,250)	$	(117,932)
Interest expense	(1,306)		38,798		37,492
Interest income	(61)		(6,437)		(6,498)
Income tax benefit	—		(2,155)		(2,155)
Depreciation, depletion and amortization	80,501		14,184		94,685
Non-cash stock compensation expense	305		2,817		3,122
Mark-to-market adjustment - acquisition-related obligations	—		(17,049)		(17,049)
Accretion on asset retirement obligations	7,087		6,121		13,208
Asset impairment and restructuring (1)	32,951		21,256		54,207
Management restructuring costs (2)	501		439		940
Loss on partial settlement of benefit obligations	—		1,230		1,230
Amortization of acquired intangibles, net	5,340		(2,948)		2,392
Adjusted EBITDA	$	86,636	$	(22,994)	$	63,642

(1) Refer to Note 8 for additional information on asset impairment and restructuring during the period.

(2) Management restructuring costs are related to severance expense associated with senior management changes in the three months ended March 31, 2020.

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Discontinued Operations - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Guarantor Obligations [Line Items]
Loss from discontinued operations before income taxes	$ (401)	$ (156,555)	$ (638)	$ (160,177)
Discontinued Operations, Disposed of by Sale | Cumberland Transaction
Guarantor Obligations [Line Items]
Remaining surety bond and expected to be released in short-term	$ 30		$ 30

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Discontinued Operations - Major Components of Net Income (Loss) (Details) - Cumberland and PRB Transaction - Discontinued Operations - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2020
Revenues:
Total revenues	$ 57,898	$ 125,554
Costs and expenses:
Cost of coal sales (exclusive of items shown separately below)	47,843	110,265
Depreciation, depletion and amortization	2,193	9,042
Accretion on asset retirement obligations	735	1,471
Selling, general and administrative expenses	169	1,387
Asset impairment and restructuring	163,675	163,675
Other non-major income items, net	(162)	(109)
Loss from discontinued operations before income taxes	$ (156,555)	$ (160,177)

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Discontinued Operations - Major Components of Asset and Liabilities (Details) - Cumberland and PRB Transaction - Discontinued Operations - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Assets:
Trade accounts receivable, net of allowance for doubtful accounts	$ 0	$ 7,504
Prepaid expenses and other current assets	2,157	3,431
Other non-current assets	9,477	9,473
Liabilities:
Trade accounts payable, accrued expenses and other current liabilities	7,101	12,306
Workers’ compensation and black lung obligations, non-current	26,205	27,799
Other non-current liabilities	$ 1,291	$ 1,291

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Discontinued Operations - Major Components of Cash Flows (Details) - Cumberland and PRB Transaction - Discontinued Operations - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2020
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Depreciation, depletion and amortization		$ 9,042
Capital expenditures		24,169
Accretion on asset retirement obligations	$ 735	1,471
Asset impairment and restructuring		$ 163,675

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Revenue - Disaggregation of Revenue by Segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Disaggregation of Revenue [Line Items]
Revenues	$ 393,458	$ 353,115	$ 778,910	$ 754,575
Coal
Disaggregation of Revenue [Line Items]
Revenues	393,458	353,115	778,910	754,575
Met Coal
Disaggregation of Revenue [Line Items]
Revenues	355,559	313,196	698,553	671,955
Thermal Coal
Disaggregation of Revenue [Line Items]
Revenues	37,899	39,919	80,357	82,620
Export coal revenues
Disaggregation of Revenue [Line Items]
Revenues	256,017	240,662	499,800	492,116
Export coal revenues | Coal
Disaggregation of Revenue [Line Items]
Revenues	256,017	240,662	499,800	492,116
Export coal revenues | Met Coal
Disaggregation of Revenue [Line Items]
Revenues	250,324	230,293	493,076	474,364
Export coal revenues | Thermal Coal
Disaggregation of Revenue [Line Items]
Revenues	5,693	10,369	6,724	17,752
Domestic coal revenues | Coal
Disaggregation of Revenue [Line Items]
Revenues	137,441	112,453	279,110	262,459
Domestic coal revenues | Met Coal
Disaggregation of Revenue [Line Items]
Revenues	105,235	82,903	205,477	197,591
Domestic coal revenues | Thermal Coal
Disaggregation of Revenue [Line Items]
Revenues	$ 32,206	$ 29,550	$ 73,633	$ 64,868

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Revenue - Performance Obligations (Details) $ in Thousands	Jun. 30, 2021 USD ($)
Disaggregation of Revenue [Line Items]
Estimated coal revenues	$ 116,787
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-07-01
Disaggregation of Revenue [Line Items]
Estimated coal revenues	$ 65,852
Revenue, remaining performance obligation, period	6 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01
Disaggregation of Revenue [Line Items]
Estimated coal revenues	$ 50,935
Revenue, remaining performance obligation, period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01
Disaggregation of Revenue [Line Items]
Estimated coal revenues	$ 0
Revenue, remaining performance obligation, period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01
Disaggregation of Revenue [Line Items]
Estimated coal revenues	$ 0
Revenue, remaining performance obligation, period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01
Disaggregation of Revenue [Line Items]
Estimated coal revenues	$ 0
Revenue, remaining performance obligation, period	1 year

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Accumulated Other Comprehensive Loss - Changes to Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 200,102	$ 696,122
Ending balance	162,331	409,415
Employee benefit costs
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(111,985)	(58,616)
Other comprehensive income (loss) before reclassifications	8,838	(14,154)
Amounts reclassified from accumulated other comprehensive loss	2,826	3,023
Ending balance	$ (100,321)	$ (69,747)

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Accumulated Other Comprehensive Loss - Summary of Amounts Reclassified (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2021	Jun. 30, 2020
Employee benefit costs:
Miscellaneous income (loss), net	$ (1,847)		$ (395)		$ (3,613)	$ 321
Loss from continuing operations before income taxes	18,582		81,713		51,278	120,087
Income tax	(8)		(33)		(3)	2,155
Net loss	18,991	$ 32,928	238,301	$ 39,808	51,919	278,109
Amounts reclassified from accumulated other comprehensive loss | Amortization of actuarial loss
Employee benefit costs:
Miscellaneous income (loss), net	1,342		934		2,826	1,728
Amounts reclassified from accumulated other comprehensive loss | Settlement
Employee benefit costs:
Miscellaneous income (loss), net	0		95		0	1,295
Amounts reclassified from accumulated other comprehensive loss | Employee benefit costs
Employee benefit costs:
Loss from continuing operations before income taxes	1,342		1,029		2,826	3,023
Income tax	0		0		0	0
Net loss	$ 1,342		$ 1,029		$ 2,826	$ 3,023

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Net Loss Per Share (Details) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Earnings Per Share [Abstract]
Antidilutive securities excluded from computation of earnings per share (in shares)	942,549	1,581,608	948,398	1,492,657
Weighted-average antidilutive securities excluded from computation of earnings per share (in shares)	313,640	9,572	301,684	42,139

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Inventories, net (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Inventory [Line Items]
Total inventories, net	$ 144,416	$ 108,051
Coal
Inventory [Line Items]
Raw coal	21,071	15,084
Saleable coal	96,768	69,262
Material, supplies and other, net
Inventory [Line Items]
Materials, supplies and other, net	$ 26,577	$ 23,705

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Acquired Intangibles - Balance Sheet Classification (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Assets	$ 81,610	$ 88,196
Liabilities	(163)	(327)
Net Total	81,447	87,869
Coal supply agreements, net
Finite-Lived Intangible Assets [Line Items]
Net Total	(163)	(327)
Acquired mine permits, net
Finite-Lived Intangible Assets [Line Items]
Net Total	81,610	88,196
Coal supply agreements, net
Finite-Lived Intangible Assets [Line Items]
Liabilities	(163)	(327)
Acquired mine permits, net
Finite-Lived Intangible Assets [Line Items]
Liabilities	0	0
Coal supply agreements, net
Finite-Lived Intangible Assets [Line Items]
Assets	0	0
Acquired mine permits, net
Finite-Lived Intangible Assets [Line Items]
Assets	$ 81,610	$ 88,196

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Acquired Intangibles - Amortization of Intangible Assets (Liabilities) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Finite-Lived Intangible Assets [Line Items]
Amortization of acquired intangibles, net	$ 2,553	$ 1,881	$ 6,422	$ 2,392
Coal supply agreements, net
Finite-Lived Intangible Assets [Line Items]
Amortization of acquired intangibles, net	(82)	(1,439)	(164)	(4,256)
Coal supply agreements, net
Finite-Lived Intangible Assets [Line Items]
Amortization of below-market coal supply agreements	(82)	(1,439)	(164)	(4,274)
Acquired mine permits, net
Finite-Lived Intangible Assets [Line Items]
Amortization of acquired intangibles, net	2,635	3,320	6,586	6,648
Coal supply agreements, net
Finite-Lived Intangible Assets [Line Items]
Amortization of acquired intangibles, net	$ 0	$ 0	$ 0	$ 18

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Asset Impairment and Restructuring - Long-Lived Asset Impairment (Details) $ in Thousands			3 Months Ended	6 Months Ended
	May 31, 2020 assetGroup	Feb. 29, 2020 assetGroup	Jun. 30, 2020 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($)
Impaired Long-Lived Assets Held and Used [Line Items]
Total from continuing operations			$ 17,390		$ 51,099
Asset impairment related to write-off of prepaid purchase coal			144,348		144,348
Total long-lived asset impairment			161,738		195,447
All Other
Impaired Long-Lived Assets Held and Used [Line Items]
Number of assets impaired | assetGroup	4	3
Total from continuing operations			17,390		18,148
Total long-lived asset impairment				$ 60
Mineral rights, net
Impaired Long-Lived Assets Held and Used [Line Items]
Total from continuing operations			2,241		24,066
Asset impairment related to write-off of prepaid purchase coal			16,364		16,364
Total long-lived asset impairment			18,605		40,430
Property, plant, and equipment, net
Impaired Long-Lived Assets Held and Used [Line Items]
Total from continuing operations			6,496		12,562
Asset impairment related to write-off of prepaid purchase coal			127,984		127,984
Total long-lived asset impairment			134,480		140,546
Acquired mine permits, net
Impaired Long-Lived Assets Held and Used [Line Items]
Total from continuing operations			8,653		14,471
Total long-lived asset impairment			8,653		14,471
Met
Impaired Long-Lived Assets Held and Used [Line Items]
Total from continuing operations			$ 0		$ 32,951
Met | Operating Segments
Impaired Long-Lived Assets Held and Used [Line Items]
Number of assets impaired | assetGroup	3	4

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Asset Impairment and Restructuring - Restructuring Expense (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Restructuring Cost and Reserve [Line Items]
Severance and employee-related benefits			$ 940
Strategic Actions with Respect to Two Thermal Coal Mining Complexes
Restructuring Cost and Reserve [Line Items]
Severance and employee-related benefits	$ 20,553		20,553
Other costs	1,882		1,882
Restructuring expense	22,435		22,435
Deferred longwall move expenses	668		668
Allowance for advanced mining royalties	407		407
Allowance for obsolete materials and supplies inventory	807		807
Strategic Actions with Respect to Two Thermal Coal Mining Complexes | Continuing operations
Restructuring Cost and Reserve [Line Items]
Severance and employee-related benefits	2,301		2,301
Other costs	807		807
Restructuring expense	3,108		3,108
Strategic Actions with Respect to Two Thermal Coal Mining Complexes | Discontinued Operations
Restructuring Cost and Reserve [Line Items]
Severance and employee-related benefits	18,252		18,252
Other costs	1,075		1,075
Restructuring expense	19,327		19,327
All Other
Restructuring Cost and Reserve [Line Items]
Severance and employee-related benefits			$ 439
All Other | Strategic Actions with Respect to Two Thermal Coal Mining Complexes
Restructuring Cost and Reserve [Line Items]
Restructuring expense		$ 621
All Other | Strategic Actions with Respect to Two Thermal Coal Mining Complexes | Continuing operations
Restructuring Cost and Reserve [Line Items]
Restructuring expense	$ 3,108

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Long-Term Debt - Schedule of Long-Term Debt (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Debt discount and issuance costs	$ (11,312)	$ (17,046)
Total long-term debt	579,667	582,527
Less current portion	(29,404)	(28,830)
Long-term debt, net of current portion	550,263	553,697
Term Loan Credit Facility | Term Loan Credit Facility - due June 2024
Debt Instrument [Line Items]
Long-term debt, gross	550,564	553,373
Line of Credit | ABL Facility - due April 2022
Debt Instrument [Line Items]
Long-term debt, gross	0	3,350
Note Payable | LCC Note Payable
Debt Instrument [Line Items]
Long-term debt, gross	27,500	27,500
Note Payable | LCC Water Treatment Obligation
Debt Instrument [Line Items]
Long-term debt, gross	6,250	6,875
Other
Debt Instrument [Line Items]
Long-term debt, gross	$ 6,665	$ 8,475

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Long-Term Debt - Narrative (Details) - USD ($)	6 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Term Loan Credit Facility | Term Loan Credit Facility - due June 2024
Debt Instrument [Line Items]
Outstanding borrowings	$ 541,572,000	$ 540,643,000
Current portion of long-term debt	5,618,000	5,618,000
Line of Credit | Revolving Credit Facility | ABL Facility - due April 2022
Debt Instrument [Line Items]
Outstanding borrowings	0	3,350,000
Letters of credit outstanding	$ 128,752,000	$ 123,108,000
Eurocurrency | Term Loan Credit Facility | Term Loan Credit Facility - due June 2024
Debt Instrument [Line Items]
Interest rate at period end	10.00%
Variable interest rate	8.00%

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Acquisition-Related Obligations - Summary of Acquisition-Related Obligations (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Fair Value, Option, Quantitative Disclosures [Line Items]
Discount	$ (768)	$ (1,491)
Total acquisition-related obligations	34,838	39,867
Less current portion	(22,866)	(19,099)
Acquisition-related obligations, net of current portion	11,972	20,768
Contingent Revenue Obligation
Fair Value, Option, Quantitative Disclosures [Line Items]
Total acquisition-related obligations - long-term, gross	23,904	28,967
Total acquisition-related obligations	23,904	28,967
Less current portion	(13,465)	(11,393)
Environmental Settlement Obligations
Fair Value, Option, Quantitative Disclosures [Line Items]
Total acquisition-related obligations - long-term, gross	9,702	10,391
UMWA Funds Settlement Liability
Fair Value, Option, Quantitative Disclosures [Line Items]
Total acquisition-related obligations - long-term, gross	$ 2,000	$ 2,000

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Acquisition-Related Obligations - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Business Acquisition, Contingent Consideration [Line Items]
Acquisition related obligations	$ 34,838	$ 39,867
Acquisition related obligations, current	22,866	19,099
Contingent Revenue Obligation
Business Acquisition, Contingent Consideration [Line Items]
Acquisition related obligations	23,904	28,967
Acquisition related obligations, current	13,465	$ 11,393
Payments for acquisition-related obligations	$ 11,396

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Asset Retirement Obligations (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Total asset retirement obligations at December 31, 2020			$ 165,064
Accretion for the period	$ 6,648	$ 6,569	13,296	$ 13,208
Revisions in estimated cash flows			(17)
Expenditures for the period			(8,592)
Total asset retirement obligations at June 30, 2021	169,751		169,751		$ 165,064
Less current portion	(28,911)		(28,911)
Long-term portion	$ 140,840		$ 140,840		$ 140,074

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Fair Value of Financial Instruments and Fair Value Measurements - Summary of Long-Term Debt (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Carrying Amount
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total long term debt	$ 573,002	$ 574,052
Carrying Amount | Term Loan Agreement | Term Loan Credit Facility - due June 2024
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total long term debt	541,572	540,643
Carrying Amount | Line of Credit | ABL Facility - due April 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total long term debt		3,350
Carrying Amount | Note Payable | LCC Note Payable
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total long term debt	26,046	24,423
Carrying Amount | Note Payable | LCC Water Treatment Obligation
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total long term debt	5,384	5,636
Fair Value, Measurements, Nonrecurring | Total Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total long term debt	518,743	407,280
Fair Value, Measurements, Nonrecurring | Total Fair Value | Quoted Prices in Active Markets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total long term debt	0	0
Fair Value, Measurements, Nonrecurring | Total Fair Value | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total long term debt	488,626	379,614
Fair Value, Measurements, Nonrecurring | Total Fair Value | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total long term debt	30,117	27,666
Fair Value, Measurements, Nonrecurring | Total Fair Value | Term Loan Agreement | Term Loan Credit Facility - due June 2024
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total long term debt	488,626	379,614
Fair Value, Measurements, Nonrecurring | Total Fair Value | Term Loan Agreement | Term Loan Credit Facility - due June 2024 | Quoted Prices in Active Markets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total long term debt	0	0
Fair Value, Measurements, Nonrecurring | Total Fair Value | Term Loan Agreement | Term Loan Credit Facility - due June 2024 | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total long term debt	488,626	379,614
Fair Value, Measurements, Nonrecurring | Total Fair Value | Term Loan Agreement | Term Loan Credit Facility - due June 2024 | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total long term debt	0	0
Fair Value, Measurements, Nonrecurring | Total Fair Value | Line of Credit | ABL Facility - due April 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total long term debt		3,057
Fair Value, Measurements, Nonrecurring | Total Fair Value | Line of Credit | ABL Facility - due April 2022 | Quoted Prices in Active Markets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total long term debt		0
Fair Value, Measurements, Nonrecurring | Total Fair Value | Line of Credit | ABL Facility - due April 2022 | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total long term debt		0
Fair Value, Measurements, Nonrecurring | Total Fair Value | Line of Credit | ABL Facility - due April 2022 | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total long term debt		3,057
Fair Value, Measurements, Nonrecurring | Total Fair Value | Note Payable | LCC Note Payable
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total long term debt	25,172	20,328
Fair Value, Measurements, Nonrecurring | Total Fair Value | Note Payable | LCC Note Payable | Quoted Prices in Active Markets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total long term debt	0	0
Fair Value, Measurements, Nonrecurring | Total Fair Value | Note Payable | LCC Note Payable | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total long term debt	0	0
Fair Value, Measurements, Nonrecurring | Total Fair Value | Note Payable | LCC Note Payable | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total long term debt	25,172	20,328
Fair Value, Measurements, Nonrecurring | Total Fair Value | Note Payable | LCC Water Treatment Obligation
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total long term debt	4,945	4,281
Fair Value, Measurements, Nonrecurring | Total Fair Value | Note Payable | LCC Water Treatment Obligation | Quoted Prices in Active Markets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total long term debt	0	0
Fair Value, Measurements, Nonrecurring | Total Fair Value | Note Payable | LCC Water Treatment Obligation | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total long term debt	0	0
Fair Value, Measurements, Nonrecurring | Total Fair Value | Note Payable | LCC Water Treatment Obligation | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total long term debt	$ 4,945	$ 4,281

XML

Fair Value of Financial Instruments and Fair Value Measurements - Acquisition-related Obligations at Fair Value (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Carrying Amount
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Acquisition-related obligations	$ 10,934	$ 10,899
Carrying Amount | UMWA Funds Settlement Liability
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Acquisition-related obligations	1,823	1,662
Carrying Amount | Environmental Settlement Obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Acquisition-related obligations	9,111	9,237
Fair Value, Measurements, Nonrecurring | Total Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Acquisition-related obligations	10,561	9,186
Fair Value, Measurements, Nonrecurring | Total Fair Value | Quoted Prices in Active Markets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Acquisition-related obligations	0	0
Fair Value, Measurements, Nonrecurring | Total Fair Value | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Acquisition-related obligations	0	0
Fair Value, Measurements, Nonrecurring | Total Fair Value | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Acquisition-related obligations	10,561	9,186
Fair Value, Measurements, Nonrecurring | Total Fair Value | UMWA Funds Settlement Liability
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Acquisition-related obligations	1,797	1,426
Fair Value, Measurements, Nonrecurring | Total Fair Value | UMWA Funds Settlement Liability | Quoted Prices in Active Markets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Acquisition-related obligations	0	0
Fair Value, Measurements, Nonrecurring | Total Fair Value | UMWA Funds Settlement Liability | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Acquisition-related obligations	0	0
Fair Value, Measurements, Nonrecurring | Total Fair Value | UMWA Funds Settlement Liability | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Acquisition-related obligations	1,797	1,426
Fair Value, Measurements, Nonrecurring | Total Fair Value | Environmental Settlement Obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Acquisition-related obligations	8,764	7,760
Fair Value, Measurements, Nonrecurring | Total Fair Value | Environmental Settlement Obligations | Quoted Prices in Active Markets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Acquisition-related obligations	0	0
Fair Value, Measurements, Nonrecurring | Total Fair Value | Environmental Settlement Obligations | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Acquisition-related obligations	0	0
Fair Value, Measurements, Nonrecurring | Total Fair Value | Environmental Settlement Obligations | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Acquisition-related obligations	$ 8,764	$ 7,760

XML

Fair Value of Financial Instruments and Fair Value Measurements - Schedule of Fair Value on Recurring Basis (Details) - Fair Value, Measurements, Recurring - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Contingent Revenue Obligation	$ 23,904	$ 28,967
Trading securities	31,189	22,498
Quoted Prices in Active Markets (Level 1)
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Contingent Revenue Obligation	0	0
Trading securities	29,311	20,092
Significant Other Observable Inputs (Level 2)
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Contingent Revenue Obligation	0	0
Trading securities	1,878	2,406
Significant Unobservable Inputs (Level 3)
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Contingent Revenue Obligation	23,904	28,967
Trading securities	$ 0	$ 0

XML

Fair Value of Financial Instruments and Fair Value Measurements - Level 3 of the Fair Value Hierarchy (Details) - Significant Unobservable Inputs (Level 3) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Beginning balance	$ 28,967	$ 52,427
Payments	(11,396)	(14,710)
Loss (Gain) Recognized in Earnings	6,333	(17,049)
Transfer In (Out) of Level 3 Fair Value Hierarchy	0	0
Ending balance	$ 23,904	$ 20,668

XML

Fair Value of Financial Instruments and Fair Value Measurements - Level 3 Fair Value Measurements (Details) $ in Billions	Jun. 30, 2021 USD ($)	Dec. 31, 2020 USD ($)
Black Scholes | Forecasted future revenue | Minimum | Contingent Revenue Obligation
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Acquisition-related obligation, measurement input	1.1	0.9
Black Scholes | Forecasted future revenue | Maximum | Contingent Revenue Obligation
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Acquisition-related obligation, measurement input	1.2	1.1
Black Scholes | Stated royalty rate | Minimum | Contingent Revenue Obligation
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Acquisition-related obligation, measurement input	0.010	0.010
Black Scholes | Stated royalty rate | Maximum | Contingent Revenue Obligation
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Acquisition-related obligation, measurement input	0.015	0.015
Black Scholes | Annualized volatility | Minimum | Contingent Revenue Obligation
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Acquisition-related obligation, measurement input	0.176	0.194
Black Scholes | Annualized volatility | Maximum | Contingent Revenue Obligation
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Acquisition-related obligation, measurement input	0.401	0.521
Black Scholes | Annualized volatility | Weighted Average | Contingent Revenue Obligation
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Acquisition-related obligation, measurement input	0.290	0.280
Fair Value, Measurements, Recurring | Discounted cash flow | Significant Unobservable Inputs (Level 3) | Discount rate | Notes Payable, UMWA Funds Settlement Liability, Enviromental Settlement Obligations, and Reclaimation Funding Liability,
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Debt and acquisition-related obligation, measurement input	0.22	0.34
Line of Credit | Fair Value, Measurements, Recurring | Discounted cash flow | ABL Facility - due April 2022 | Significant Unobservable Inputs (Level 3) | Discount rate
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Debt, measurement input		0.09

XML

Income Taxes (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Income Tax Disclosure [Abstract]
Income tax expense	$ 8,000	$ 33,000	$ 3,000	$ (2,155,000)
Income (loss) from continuing operations before income taxes	(18,582,000)	$ (81,713,000)	(51,278,000)	$ (120,087,000)
Current estimated federal income tax liability	$ 0		0
Increase in deferred tax asset valuation allowance			$ 6,184,000

XML

Employee Benefit Plans - Schedule of Components of Net Periodic Benefit Cost (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Pension
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Interest cost	$ 3,362	$ 4,656	$ 6,784	$ 9,391
Expected return on plan assets	(7,119)	(6,748)	(14,366)	(13,560)
Amortization of net actuarial loss (gain)	734	521	1,609	990
Settlement	0	63	0	1,230
Net periodic expense	(3,023)	(1,508)	(5,973)	(1,949)
Black Lung
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	739	492	1,478	980
Interest cost	607	775	1,214	1,597
Expected return on plan assets	(14)	(14)	(28)	(27)
Amortization of net actuarial loss (gain)	522	286	1,044	501
Net periodic expense	$ 1,854	$ 1,539	$ 3,708	$ 3,051

XML

Employee Benefit Plans - Narrative (Details) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2021 USD ($)	Jun. 30, 2021 USD ($)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Decrease in liability for pension obligations	$ 8,838
Pension | American Rescue Plan Act
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Pension plan, employer contributions		$ 3,701
Pension plan, expected employer contributions	$ 7,664	$ 7,664

XML

Commitments and Contingencies - Narrative (Details) $ in Thousands	3 Months Ended	6 Months Ended	9 Months Ended	12 Months Ended
	Jun. 30, 2021 USD ($) T	Jun. 30, 2021 USD ($) T	Dec. 31, 2021 USD ($) T	Dec. 31, 2022 USD ($) T	Dec. 31, 2020 USD ($)	Feb. 21, 2020 USD ($)	Feb. 20, 2020 USD ($)
Long-term Purchase Commitment [Line Items]
Income tax receivable	$ 64,160	$ 64,160
Income tax receivable related to NOL carryback claim	5,385	5,385
Black Lung
Long-term Purchase Commitment [Line Items]
Collateral for self insurance black lunch obligations						$ 65,700	$ 2,600
Reclamation-related obligations
Long-term Purchase Commitment [Line Items]
Collateral supporting guarantees	42,211	42,211
Surety Bond
Long-term Purchase Commitment [Line Items]
Guarantees	211,694	211,694
Guarantor obligations attributable to discontinued operations	30	30
Revolving Credit Facility | Line of Credit | Credit and Security Agreement
Long-term Purchase Commitment [Line Items]
Letters of credit outstanding	613	613
Revolving Credit Facility | Line of Credit | ABL Facility - due April 2022
Long-term Purchase Commitment [Line Items]
Letters of credit outstanding	$ 128,752	$ 128,752			$ 123,108
Cumberland Back-to-Back Coal Supply Agreements
Long-term Purchase Commitment [Line Items]
Purchase and sale contingency, mass purchased and sold (in tons) | T	760,000	1,460,000
Purchase and sale contingency, mass purchased and sold, amount	$ 29,487	$ 56,553
Cumberland Back-to-Back Coal Supply Agreements | Forecast
Long-term Purchase Commitment [Line Items]
Purchase and sale contingency, mass purchased and sold (in tons) | T			1,226,000	2,615,000
Purchase and sale contingency, mass purchased and sold, amount			$ 47,803	$ 101,990
Commitment of Fixed Priced Tons from Vendors with Historical Performance Resulting in Less Than 20% of Committed Tonnage Being Delivered
Long-term Purchase Commitment [Line Items]
Minimum quantities to be purchased, 2021	3,230	3,230
Coal Purchase Agreements
Long-term Purchase Commitment [Line Items]
Minimum quantities to be purchased, 2021	33,477	33,477
Shipping
Long-term Purchase Commitment [Line Items]
Minimum quantities to be shipped, 2022	$ 32,940	$ 32,940

XML

Commitments and Contingencies - Schedule of Restricted Cash Deposits (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020	Jun. 30, 2020
Long-term Purchase Commitment [Line Items]
Total restricted cash	$ 96,552	$ 105,344
Less current portion	(3,794)	(9,311)	$ (3,720)
Long-term restricted cash	92,758	96,033	$ 109,930
Workers' compensation and black lung obligations
Long-term Purchase Commitment [Line Items]
Total restricted cash	63,096	69,725
Reclamation-related obligations
Long-term Purchase Commitment [Line Items]
Total restricted cash	6,989	8,445
Financial payments and other performance obligations
Long-term Purchase Commitment [Line Items]
Total restricted cash	22,673	17,863
Contingent revenue obligation escrow
Long-term Purchase Commitment [Line Items]
Total restricted cash	$ 3,794	$ 9,311

XML

Commitments and Contingencies - Schedule of Restricted Investments (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Long-term Purchase Commitment [Line Items]
Total restricted investments	$ 31,442	$ 23,768
Restricted investments, trading	31,189	22,498
Restricted investments, held-to-maturity	253	1,270
Workers' compensation and black lung obligations
Long-term Purchase Commitment [Line Items]
Total restricted investments	210	51
Reclamation-related obligations
Long-term Purchase Commitment [Line Items]
Total restricted investments	29,195	22,233
Financial payments and other performance obligations
Long-term Purchase Commitment [Line Items]
Total restricted investments	$ 2,037	$ 1,484

XML

Commitments and Contingencies - Cash Deposits Held by Third Parties (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Long-term Purchase Commitment [Line Items]
Total deposits	$ 7,696	$ 28,247
Workers' compensation and black lung obligations
Long-term Purchase Commitment [Line Items]
Total deposits	35	0
Reclamation-related obligations
Long-term Purchase Commitment [Line Items]
Total deposits	6,027	25,633
Financial payments and other performance obligations
Long-term Purchase Commitment [Line Items]
Total deposits	732	1,596
Other operating agreements
Long-term Purchase Commitment [Line Items]
Total deposits	$ 902	$ 1,018

XML

Segment Information - Schedule of Operating Results and Capital Expenditures (Details) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2021 USD ($) mine plant segment	Jun. 30, 2020 USD ($)	Dec. 31, 2020 segment
Segment Reporting Information [Line Items]
Number of reportable segments | segment			1		2
Total revenues	$ 395,275	$ 353,940	$ 781,528	$ 756,744
Depreciation, depletion and amortization	27,304	47,069	55,742	94,685
Amortization of acquired intangibles, net	2,553	1,881	6,422	2,392
Adjusted EBITDA	39,917	7,145	68,801	63,642
Capital expenditures	17,644	30,658	38,039	66,921
Operating Segments | Met
Segment Reporting Information [Line Items]
Total revenues	377,937	316,534	737,815	679,293
Depreciation, depletion and amortization	25,686	38,779	52,222	80,501
Amortization of acquired intangibles, net	2,635	2,759	6,686	5,340
Adjusted EBITDA	46,786	17,518	79,368	86,636
Capital expenditures	17,203	27,647	$ 37,526	60,781
Operating Segments | Met | Virginia
Segment Reporting Information [Line Items]
Number of active mines | mine			5
Number of preparation plants | plant			2
Operating Segments | Met | West Virginia
Segment Reporting Information [Line Items]
Number of active mines | mine			14
Number of preparation plants | plant			5
All Other
Segment Reporting Information [Line Items]
Total revenues	17,338	37,406	$ 43,713	77,451
Depreciation, depletion and amortization	1,618	8,290	3,520	14,184
Amortization of acquired intangibles, net	(82)	(878)	(264)	(2,948)
Adjusted EBITDA	(6,869)	(10,373)	(10,567)	(22,994)
Capital expenditures	$ 441	$ 3,011	$ 513	$ 6,140
All Other | West Virginia
Segment Reporting Information [Line Items]
Number of active mines | mine			1
Number of preparation plants | plant			1

XML

Segment Information - Reconciliation of Net Income (Loss) to Adjusted EBITDA (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Segment Reporting, Other Significant Reconciling Item [Line Items]
Net loss from continuing operations	$ (18,590)	$ (81,746)	$ (51,281)	$ (117,932)
Interest expense	17,962	19,316	35,952	37,492
Interest income	(104)	(5,530)	(268)	(6,498)
Income tax expense (benefit)	8	33	3	(2,155)
Depreciation, depletion and amortization	27,304	47,069	55,742	94,685
Non-cash stock compensation expense	979	1,044	3,163	3,122
Mark-to-market adjustment for acquisition-related obligations	3,157	(2,052)	6,333	(17,049)
Accretion on asset retirement obligations	6,648	6,569	13,296	13,208
Asset impairment and restructuring	0	20,498	(561)	54,207
Management restructuring costs				940
Loss on partial settlement of benefit obligations		63		1,230
Amortization of acquired intangibles, net	2,553	1,881	6,422	2,392
Adjusted EBITDA	39,917	7,145	68,801	63,642
Strategic Actions with Respect to Two Thermal Coal Mining Complexes
Segment Reporting, Other Significant Reconciling Item [Line Items]
Management restructuring costs		20,553		20,553
Operating Segments | Met
Segment Reporting, Other Significant Reconciling Item [Line Items]
Net loss from continuing operations	15,042	(27,097)	13,604	(38,682)
Interest expense	40	(377)	83	(1,306)
Interest income	0	(3)	(5)	(61)
Income tax expense (benefit)	0	0	0	0
Depreciation, depletion and amortization	25,686	38,779	52,222	80,501
Non-cash stock compensation expense	6	(94)	16	305
Mark-to-market adjustment for acquisition-related obligations	0	0	0	0
Accretion on asset retirement obligations	3,377	3,551	6,762	7,087
Asset impairment and restructuring		0	0	32,951
Management restructuring costs				501
Loss on partial settlement of benefit obligations		0		0
Amortization of acquired intangibles, net	2,635	2,759	6,686	5,340
Adjusted EBITDA	46,786	17,518	79,368	86,636
All Other
Segment Reporting, Other Significant Reconciling Item [Line Items]
Net loss from continuing operations	(33,632)	(54,649)	(64,885)	(79,250)
Interest expense	17,922	19,693	35,869	38,798
Interest income	(104)	(5,527)	(263)	(6,437)
Income tax expense (benefit)	8	33	3	(2,155)
Depreciation, depletion and amortization	1,618	8,290	3,520	14,184
Non-cash stock compensation expense	973	1,138	3,147	2,817
Mark-to-market adjustment for acquisition-related obligations	3,157	(2,052)	6,333	(17,049)
Accretion on asset retirement obligations	3,271	3,018	6,534	6,121
Asset impairment and restructuring		20,498	(561)	21,256
Management restructuring costs				439
Loss on partial settlement of benefit obligations		63		1,230
Amortization of acquired intangibles, net	(82)	(878)	(264)	(2,948)
Adjusted EBITDA	$ (6,869)	$ (10,373)	$ (10,567)	$ (22,994)

XML

Segment Information - Revenue from External Customers (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenues from External Customers and Long-Lived Assets [Line Items]
Coal revenues	$ 393,458	$ 353,115	$ 778,910	$ 754,575
Export coal revenues
Revenues from External Customers and Long-Lived Assets [Line Items]
Coal revenues	$ 256,017	$ 240,662	$ 499,800	$ 492,116
Geographic Concentration Risk | Export coal revenues | Export Coal Revenue
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk percentage	65.00%	68.00%	64.00%	65.00%

XML

Label	Element	Value
Accounting Standards Update [Extensible Enumeration]	us-gaap_AccountingStandardsUpdateExtensibleList	Accounting Standards Update 2016-13 [Member]