Core Natural Resources (CNR) 10-Q31 Oct 232023 Q3 Quarterly reportFinancial data

Company Profile

Cover Page

Cover Page - shares	9 Months Ended
Cover Page - shares	Sep. 30, 2023	Oct. 25, 2023
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2023
Document Transition Report	false
Entity File Number	001-38147
Entity Registrant Name	CONSOL Energy Inc
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	82-1954058
Entity Address, Address Line One	275 Technology Drive
Entity Address, Address Line Two	Suite 101
Entity Address, City or Town	Canonsburg
Entity Address, State or Province	PA
Entity Address, Postal Zip Code	15317-9565
City Area Code	724
Local Phone Number	416-8300
Title of 12(b) Security	Common Stock, $0.01 par value
Trading Symbol	CEIX
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		31,009,862
Entity Central Index Key	0001710366
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	Q3
Document Fiscal Year Focus	2023

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
Consolidated Statements of Income - USD ($) $ in Thousands	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Total Revenue from Contracts with Customers	$ 540,666	$ 530,017	$ 1,872,286	$ 1,671,103
Loss on Commodity Derivatives, net	0	(65)	0	(256,571)
Miscellaneous Other Income	27,852	5,138	40,070	17,160
Gain on Sale of Assets	1,346	26,548	7,082	33,094
Total Revenue and Other Income	569,864	561,638	1,919,438	1,464,786
Costs and Expenses:
Operating and Other Costs	276,323	229,669	813,546	692,968
Depreciation, Depletion and Amortization	58,792	54,773	182,871	168,607
Freight Expense	68,372	42,619	217,435	131,419
General and Administrative Costs	37,313	30,406	79,758	94,919
Loss on Debt Extinguishment	662	674	2,725	4,361
Interest Expense	6,645	11,962	24,079	39,435
Total Costs and Expenses	448,107	370,103	1,320,414	1,131,709
Earnings Before Income Tax	121,757	191,535	599,024	333,077
Income Tax Expense	21,032	39,414	100,199	59,115
Net Income	$ 100,725	$ 152,121	$ 498,825	$ 273,962
Earnings per Share:
Total Basic Earnings (Loss) per Share (in dollars per share)	$ 3.15	$ 4.36	$ 14.97	$ 7.87
Total Dilutive Earnings (Loss) per Share (in dollars per share)	3.11	4.25	14.75	7.68
Dividends declared per common share (in dollars per share)	$ 0	$ 1	$ 2.20	$ 1
Coal Revenue
Total Revenue from Contracts with Customers	$ 449,618	$ 472,558	$ 1,574,096	$ 1,481,668
Terminal Revenue
Total Revenue from Contracts with Customers	22,676	14,840	80,755	58,016
Freight Revenue
Total Revenue from Contracts with Customers	$ 68,372	$ 42,619	$ 217,435	$ 131,419

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Net Income	$ 100,725	$ 152,121	$ 498,825	$ 273,962
Other Comprehensive (Loss) Income:
Actuarially Determined Long-Term Liability Adjustments (Net of tax: $274, ($508), $822, ($1,524))	901	(1,525)	2,702	(4,574)
Unrealized Loss on Investments in Available-for-Sale Securities (Net of tax: $2, $—, $15, $—)	(6)	0	(49)	0
Unrealized (Loss) Gain on Cash Flow Hedges (Net of tax: $—, $89, $—, ($116))	0	(214)	0	401
Other Comprehensive (Loss) Income	(907)	1,311	(2,751)	4,975
Comprehensive Income (Loss)	$ 99,818	$ 153,432	$ 496,074	$ 278,937

Consolidated Statements of Co_2

Consolidated Statements of Comprehensive Income (Parentheticals) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Other comprehensive income (loss), defined benefit plan, gain (loss) arising during period, tax	$ 274	$ (508)	$ 822	$ (1,524)
OCI, debt securities, available-for-sale, gain (loss), after adjustment, tax	2	0	15	0
Interest rate hedge, tax	$ 0	$ 89	$ 0	$ (116)

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Current Assets:
Cash and Cash Equivalents	$ 167,586	$ 273,070
Short-Term Investments	81,009	0
Accounts and Notes Receivable
Trade Receivables, net	147,664	158,127
Other Receivables, net	11,317	38,517
Inventories	98,386	66,290
Other Current Assets	73,432	62,479
Total Current Assets	579,394	598,483
Property, Plant and Equipment:
Property, Plant and Equipment	5,520,656	5,408,577
Less - Accumulated Depreciation, Depletion and Amortization	3,603,830	3,448,495
Total Property, Plant and Equipment—Net	1,916,826	1,960,082
Other Assets:
Right of Use Asset - Operating Leases	15,660	19,799
Salary Retirement	47,921	38,548
Other Noncurrent Assets, net	99,714	87,465
Total Other Assets	163,295	145,812
TOTAL ASSETS	2,659,515	2,704,377
Current Liabilities:
Accounts Payable	132,377	130,232
Current Portion of Long-Term Debt	15,623	28,846
Operating Lease Liability, Current Portion	4,854	4,922
Commodity Derivatives	0	15,142
Other Accrued Liabilities	301,297	269,656
Total Current Liabilities	454,151	448,798
Long-Term Debt:
Long-Term Debt	183,421	342,110
Finance Lease Obligations	5,405	13,225
Total Long-Term Debt	188,826	355,335
Deferred Credits and Other Liabilities:
Postretirement Benefits Other Than Pensions	226,645	232,593
Pneumoconiosis Benefits	145,146	148,390
Asset Retirement Obligations	221,011	221,858
Workers’ Compensation	42,220	40,951
Salary Retirement	20,536	20,585
Operating Lease Liability	11,232	15,073
Deferred Income Taxes	21,077	21,914
Other Noncurrent Liabilities	19,881	33,054
Total Deferred Credits and Other Liabilities	707,748	734,418
TOTAL LIABILITIES	1,350,725	1,538,551
Stockholders' Equity:
Common Stock, $0.01 Par Value; 62,500,000 Shares Authorized, 31,152,797 Shares Issued and Outstanding at September 30, 2023; 34,746,904 Shares Issued and Outstanding at December 31, 2022	312	347
Capital in Excess of Par Value	569,071	646,237
Retained Earnings	891,798	668,882
Accumulated Other Comprehensive Loss	(152,391)	(149,640)
TOTAL EQUITY	1,308,790	1,165,826
TOTAL LIABILITIES AND EQUITY	$ 2,659,515	$ 2,704,377

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - $ / shares	Sep. 30, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Common stock, par value per share (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	62,500,000	62,500,000
Common stock, shares, issued	31,152,797	34,746,904
Common stock, shares, outstanding	31,152,797	34,746,904

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Capital in Excess of Par Value	Retained Earnings	Accumulated Other Comprehensive (Loss) Income
Beginning balance at Dec. 31, 2021	$ 672,813	$ 345	$ 646,945	$ 280,960	$ (255,437)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(4,450)			(4,450)
Actuarially determined long-term liability adjustments	1,525				1,525
Interest Rate Hedge, net	391				391
Comprehensive Income (Loss)	(2,534)			(4,450)	1,916
Issuance of Common Stock	0	3	(3)
Amortization of Stock-Based Compensation Awards	4,201		4,201
Shares Withheld for Taxes	(6,072)		(6,072)
Ending balance at Mar. 31, 2022	668,408	348	645,071	276,510	(253,521)
Beginning balance at Dec. 31, 2021	672,813	345	646,945	280,960	(255,437)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	273,962
Actuarially determined long-term liability adjustments	4,574
Interest Rate Hedge, net	401
Investments in available-for-sale securities	0
Comprehensive Income (Loss)	278,937
Ending balance at Sep. 30, 2022	916,445	349	647,448	519,110	(250,462)
Beginning balance at Mar. 31, 2022	668,408	348	645,071	276,510	(253,521)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	126,291			126,291
Actuarially determined long-term liability adjustments	1,524				1,524
Interest Rate Hedge, net	224				224
Comprehensive Income (Loss)	128,039			126,291	1,748
Issuance of Common Stock	0	1	(1)
Amortization of Stock-Based Compensation Awards	1,269		1,269
Shares Withheld for Taxes	(122)		(122)
Ending balance at Jun. 30, 2022	797,594	349	646,217	402,801	(251,773)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	152,121			152,121
Actuarially determined long-term liability adjustments	1,525				1,525
Interest Rate Hedge, net	(214)				(214)
Investments in available-for-sale securities	0
Comprehensive Income (Loss)	153,432			152,121	1,311
Amortization of Stock-Based Compensation Awards	1,224		1,224
Shares Withheld for Taxes	7		7
Dividends on common shares	(34,871)			(34,871)
Dividend Equivalents Earned on Stock-Based Compensation Awards	(941)			(941)
Ending balance at Sep. 30, 2022	916,445	349	647,448	519,110	(250,462)
Beginning balance at Dec. 31, 2022	1,165,826	347	646,237	668,882	(149,640)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	230,377			230,377
Actuarially determined long-term liability adjustments	(901)				(901)
Investments in available-for-sale securities	212				212
Comprehensive Income (Loss)	229,688			230,377	(689)
Issuance of Common Stock	0	3	(3)
Repurchases of common stock	(67,133)	(11)	(22,446)	(44,676)
Excise Tax on Repurchases of Common Stock	(478)			(478)
Amortization of Stock-Based Compensation Awards	4,792		4,792
Shares Withheld for Taxes	(12,708)		(12,708)
Dividends on common shares	(38,287)			(38,287)
Dividend Equivalents Earned on Stock-Based Compensation Awards	(803)			(803)
Ending balance at Mar. 31, 2023	1,280,897	339	615,872	815,015	(150,329)
Beginning balance at Dec. 31, 2022	1,165,826	347	646,237	668,882	(149,640)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	498,825
Actuarially determined long-term liability adjustments	(2,702)
Interest Rate Hedge, net	0
Investments in available-for-sale securities	(49)
Comprehensive Income (Loss)	496,074
Ending balance at Sep. 30, 2023	1,308,790	312	569,071	891,798	(152,391)
Beginning balance at Mar. 31, 2023	1,280,897	339	615,872	815,015	(150,329)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	167,723			167,723
Actuarially determined long-term liability adjustments	(900)				(900)
Investments in available-for-sale securities	(255)				(255)
Comprehensive Income (Loss)	166,568			167,723	(1,155)
Repurchases of common stock	(75,627)	(12)	(22,261)	(53,354)
Excise Tax on Repurchases of Common Stock	(728)			(728)
Amortization of Stock-Based Compensation Awards	1,993		1,993
Shares Withheld for Taxes	(38)		(38)
Dividends on common shares	(37,187)			(37,187)
Dividend Equivalents Earned on Stock-Based Compensation Awards	(683)			(683)
Ending balance at Jun. 30, 2023	1,335,195	327	595,566	890,786	(151,484)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	100,725			100,725
Actuarially determined long-term liability adjustments	(901)				(901)
Interest Rate Hedge, net	0
Investments in available-for-sale securities	(6)				(6)
Comprehensive Income (Loss)	99,818			100,725	(907)
Repurchases of common stock	(126,634)	(15)	(28,171)	(98,448)
Excise Tax on Repurchases of Common Stock	(1,265)			(1,265)
Amortization of Stock-Based Compensation Awards	1,676		1,676
Ending balance at Sep. 30, 2023	$ 1,308,790	$ 312	$ 569,071	$ 891,798	$ (152,391)

Consolidated Statements of St_2

Consolidated Statements of Stockholders' Equity (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022
Statement of Stockholders' Equity [Abstract]
Actuarially determined long-term liability adjustments, net of tax	$ 274	$ 274	$ 274			$ 508
Interest rate hedge, tax	0			$ (89)	$ 75	$ 130
OCI, debt securities, available-for-sale, gain (loss), after adjustment, tax	$ 2	$ 77	$ (64)	$ 0
Stock repurchased and retired during period, shares	1,547,846	1,225,134	1,207,409
Dividends declared per common share (in dollars per share)	$ 0	$ 1.10	$ 1.10	$ 1
Actuarially determined long-term liability adjustments, net of tax				$ 508	$ 508

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Cash Flows from Operating Activities:
Net Income	$ 498,825	$ 273,962
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
Depreciation, Depletion and Amortization	182,871	168,607
Gain on Sale of Assets	(7,082)	(33,094)
Stock-Based Compensation	8,461	6,694
Amortization of Debt Issuance Costs	4,534	6,682
Loss on Debt Extinguishment	2,725	4,361
Deferred Income Taxes	(837)	13,095
Other Adjustments to Net Income	(2,571)	3,880
Changes in Operating Assets:
Accounts and Notes Receivable	37,670	(3,304)
Inventories	(32,096)	(11,685)
Other Current Assets	(4,522)	6,069
Changes in Other Assets	(26,913)	(24,866)
Changes in Operating Liabilities:
Accounts Payable	7,759	41,222
Commodity Derivatives, net Liability	(15,142)	39,282
Other Operating Liabilities	28,751	16,951
Changes in Other Liabilities	(43,615)	(8,170)
Net Cash Provided by Operating Activities	638,818	499,686
Cash Flows from Investing Activities:
Capital Expenditures	(117,749)	(134,456)
Proceeds from Sales of Assets	6,240	19,774
Investments in Mining-Related Activities	(5,366)	0
Proceeds from Sales of Short-Term Investments	83,924	0
Purchases of Short-Term Investments	(162,422)	0
Other Investing Activity	(350)	(1,633)
Net Cash Used in Investing Activities	(195,723)	(116,315)
Cash Flows from Financing Activities:
Payments on Finance Lease Obligations	(19,490)	(18,192)
Payments on Other Debt	(729)	(589)
Shares Withheld for Taxes	(12,746)	(6,187)
Repurchases of Common Stock	(277,382)	0
Debt-Related Financing Fees	(2,810)	(7,766)
Dividends	(75,474)	(34,871)
Net Cash Used in Financing Activities	(554,053)	(260,929)
Net (Decrease) Increase in Cash and Cash Equivalents and Restricted Cash	(110,958)	122,442
Cash and Cash Equivalents and Restricted Cash at Beginning of Period	326,952	198,206
Cash and Cash Equivalents and Restricted Cash at End of Period	215,994	320,648
Non-Cash Investing and Financing Activities:
Finance Lease	588	6,256
Term Loan A Facility
Cash Flows from Financing Activities:
Payments on debt	0	(41,250)
Term Loan B Facility
Cash Flows from Financing Activities:
Payments on debt	(63,590)	(125,687)
Senior Secured Second Lien Notes due 2025
Cash Flows from Financing Activities:
Payments on debt	$ (101,832)	$ (26,387)

Basis of Presentation

Basis of Presentation	9 Months Ended
Basis of Presentation	Sep. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	BASIS OF PRESENTATION: Basis of Presentation The accompanying Consolidated Financial Statements have been prepared in accordance with generally accepted accounting principles for interim financial information and with the instructions to Form 10-Q and Article 10-01 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by accounting principles generally accepted in the United States (“GAAP”) for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring adjustments) considered necessary for a fair presentation have been included. Operating results for the three and nine months ended September 30, 2023 are not necessarily indicative of the results that may be expected for future periods. The Consolidated Balance Sheet at December 31, 2022 has been derived from the Audited Consolidated Financial Statements at that date but does not include all disclosures required by GAAP. This Form 10-Q report should be read in conjunction with CONSOL Energy Inc.'s Annual Report on Form 10-K for the year ended December 31, 2022. All dollar amounts discussed in these Notes to Consolidated Financial Statements are in thousands of U.S. dollars, except for per share amounts, and unless otherwise indicated. Basis of Consolidation The Consolidated Financial Statements include the accounts of CONSOL Energy Inc. and its wholly-owned and majority-owned and/or controlled subsidiaries. All significant intercompany transactions and accounts have been eliminated in consolidation. Recent Accounting Pronouncements In August 2023, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2023-05 - Business Combinations—Joint Venture Formations (Subtopic 805-60). The amendments in this update address the accounting for contributions made to a joint venture, upon formation, in a joint venture's separate financial statements. The objectives of the amendments are to (1) provide decision-useful information to investors and other allocators of capital in a joint venture's financial statements and (2) reduce diversity in practice. The amendments in this update do not amend the definition of a joint venture, the accounting by an equity method investor for its investment in a joint venture, or the accounting by a joint venture for contributions received after its formation. The amendments in this update are effective prospectively for all joint venture formations with a formation date on or after January 1, 2025. Existing joint ventures may elect to apply the guidance retrospectively. Management is currently evaluating the impact of this guidance, but does not expect this update to have a material impact on the Company's financial statements. In March 2023, the FASB issued ASU 2023-02 - Investments—Equity Method and Joint Ventures (Topic 323). The amendments in this update permit reporting entities to elect to account for their tax equity investments, regardless of the tax credit program from which the income tax credits are received, using the proportional amortization method if certain conditions are met. The amendments in this update apply to all reporting entities that hold (1) tax equity investments that meet the conditions for and elect to account for them using the proportional amortization method or (2) an investment in a low-income-housing tax credit (LIHTC) structure through a limited liability entity that is not accounted for using the proportional amortization method and to which certain LIHTC-specific guidance removed from Subtopic 323-740, Investments—Equity Method and Joint Ventures—Income Taxes, has been applied. The amendments in this update are effective for fiscal years beginning after December 15, 2023, including interim periods within those fiscal years. Management is currently evaluating the impact of this guidance, but does not expect this update to have a material impact on the Company's financial statements. Earnings per Share Basic earnings per share are computed by dividing net income by the weighted average number of shares outstanding during the reporting period. Dilutive earnings per share are computed similarly to basic earnings per share, except that the weighted average number of shares outstanding is increased to include additional shares from restricted stock units and performance share units, if dilutive. The number of additional shares is calculated by assuming that outstanding restricted stock units and performance share units were released, and that the proceeds from such activities, as applicable, were used to acquire shares of common stock at the average market price during the reporting period. The table below sets forth the share-based awards that have been excluded from the computation of diluted earnings per share because their effect would be anti-dilutive: Three Months Ended Nine Months Ended 2023 2022 2023 2022 Anti-Dilutive Restricted Stock Units — 80 1,031 403 Anti-Dilutive Performance Share Units — — — — — 80 1,031 403 The computations for basic and dilutive earnings per share are as follows: Dollars in thousands, except per share data Three Months Ended Nine Months Ended 2023 2022 2023 2022 Numerator: Net Income $ 100,725 $ 152,121 $ 498,825 $ 273,962 Denominator: Weighted-average shares of common stock outstanding 31,928,295 34,870,154 33,330,892 34,793,069 Effect of dilutive shares 464,394 906,437 479,628 900,513 Weighted-average diluted shares of common stock outstanding 32,392,689 35,776,591 33,810,520 35,693,582 Earnings per Share: Basic $ 3.15 $ 4.36 $ 14.97 $ 7.87 Dilutive $ 3.11 $ 4.25 $ 14.75 $ 7.68 As of September 30, 2023, CONSOL Energy has 500,000 shares of preferred stock authorized, none of which are issued or outstanding. Reclassifications Certain amounts in prior periods have been reclassified to conform with the report classifications of the current period. These reclassifications had no effect on previously reported total assets, stockholders' equity, net income or cash flows from operating activities.

Revenue From Contracts With Cus

Revenue From Contracts With Customers	9 Months Ended
Revenue From Contracts With Customers	Sep. 30, 2023
Revenue from Contract with Customer [Abstract]
Revenue from Contract with Customer	REVENUE FROM CONTRACTS WITH CUSTOMERS: The following tables disaggregate CONSOL Energy's revenue from contracts with customers by product type and market: Three Months Ended September 30, 2023 Domestic Export Total Power Generation $ 169,143 $ 37,134 $ 206,277 Industrial 11,076 169,709 180,785 Metallurgical — 62,556 62,556 Total Coal Revenue 180,219 269,399 449,618 Terminal Revenue 22,676 Freight Revenue 68,372 Total Revenue from Contracts with Customers $ 540,666 Three Months Ended September 30, 2022 Domestic Export Total Power Generation $ 231,274 $ 118,765 $ 350,039 Industrial 3,877 51,956 55,833 Metallurgical 3,536 63,150 66,686 Total Coal Revenue 238,687 233,871 472,558 Terminal Revenue 14,840 Freight Revenue 42,619 Total Revenue from Contracts with Customers $ 530,017 Nine Months Ended September 30, 2023 Domestic Export Total Power Generation $ 476,598 $ 270,736 $ 747,334 Industrial 29,814 560,382 590,196 Metallurgical 10,627 225,939 236,566 Total Coal Revenue 517,039 1,057,057 1,574,096 Terminal Revenue 80,755 Freight Revenue 217,435 Total Revenue from Contracts with Customers $ 1,872,286 Nine Months Ended September 30, 2022 Domestic Export Total Power Generation $ 658,630 $ 261,837 $ 920,467 Industrial 14,671 312,617 327,288 Metallurgical 3,536 230,377 233,913 Total Coal Revenue 676,837 804,831 1,481,668 Terminal Revenue 58,016 Freight Revenue 131,419 Total Revenue from Contracts with Customers $ 1,671,103 Coal Revenue The Company has disaggregated its coal revenue, derived from the PAMC and the Itmann Mining Complex, between domestic and export revenues, as well as industrial, power generation and metallurgical markets. Domestic coal revenue tends to be derived from contracts that typically have a term of one year or longer, and the pricing is typically fixed. Historically, export coal revenue tended to be derived from spot or shorter-term contracts with pricing determined closer to the time of shipment or based on a market index; however, the Company has secured several long-term export contracts with varying pricing arrangements. Coal revenue derived from the Itmann Mining Complex consists primarily of metallurgical coal sales, while coal revenue derived from the PAMC services the industrial, power generation and metallurgical markets due to the nature of its coal quality characteristics. CONSOL Energy's coal revenue is recognized when the performance obligation has been satisfied, and the corresponding transaction price has been determined. Generally, title passes when coal is loaded at the coal preparation facilities, at terminal locations or other customer destinations. The Company's coal contract revenue per ton is fixed or determinable based upon either fixed forward pricing or pricing derived from established indices and adjusted for nominal quality characteristics. Some coal contracts also contain positive electric power price-related adjustments, which represent market-driven price adjustments, wherein no additional value is exchanged, in addition to a fixed base price per ton. The Company’s coal contracts generally do not allow for retroactive adjustments to pricing after title to the coal has passed and typically do not have significant financing components. The estimated transaction price from each of the Company's contracts is based on the total amount of consideration to which the Company expects to be entitled under the contract. Included in the transaction price for certain coal supply contracts is the impact of variable consideration, including quality price adjustments, handling services and per ton price fluctuations based on certain coal sales price indices. The estimated transaction price for each contract is allocated to the Company's performance obligations based on relative stand-alone selling prices determined at contract inception. The Company has determined that each ton of coal represents a separate and distinct performance obligation. Some of the Company's contracts span multiple years and have annual pricing modifications, based upon market-driven or inflationary adjustments, where no additional value is exchanged. While CONSOL Energy does, from time to time, experience costs of obtaining coal customer contracts with amortization periods greater than one year, those costs are generally immaterial. At September 30, 2023 and December 31, 2022, the Company did not have any capitalized costs to obtain customer contracts on its Consolidated Balance Sheets. As of and for the three and nine months ended September 30, 2023 and 2022, the Company has not recognized any amortization of previously existing capitalized costs of obtaining customer contracts. Further, the Company has not recognized any coal revenue in the current period that is not a result of current period performance. Terminal Revenue Terminal revenues are attributable to the Company's CONSOL Marine Terminal and include revenues earned from providing receipt and unloading of coal from rail cars, transporting coal from the receipt point to temporary storage or stockpile facilities located at the Terminal, stockpiling, blending, weighing, sampling, redelivery, and loading of coal onto vessels. Revenues for these services are earned and performance obligations are considered fulfilled as the services are performed. The CONSOL Marine Terminal does not normally experience material costs of obtaining customer contracts with amortization periods greater than one year. At September 30, 2023 and December 31, 2022, the Company did not have any capitalized costs to obtain customer contracts on its Consolidated Balance Sheets. As of and for the three and nine months ended September 30, 2023 and 2022, the Company has not recognized any amortization of previously existing capitalized costs of obtaining Terminal customer contracts. Further, the Company has not recognized any revenue in the current period that is not a result of current period performance. Freight Revenue Some of CONSOL Energy's coal contracts require that the Company sell its coal at locations other than its coal preparation plants. The cost to transport the Company's coal to the ultimate sales point is passed through to the Company's customers and CONSOL Energy recognizes the freight revenue equal to the transportation costs when title to the coal passes to the customer. Contract Balances Contract assets, when present, are recorded separately from trade receivables in the Company's Consolidated Balance Sheets and are reclassified to trade receivables as title passes to the customer and the Company's right to consideration becomes unconditional. Credit is extended based on an evaluation of a customer's financial condition and a customer's ability to perform its obligations. CONSOL Energy typically does not have material contract assets that are stated separately from trade receivables since the Company's performance obligations are satisfied as control of the goods or services passes to the customer, thereby granting the Company an unconditional right to receive consideration. Contract liabilities relate to consideration received in advance of the satisfaction of the Company's performance obligations. Contract liabilities are recognized as revenue at the point in time when control of the goods passes to the customer, or over time when services are provided.

Components of Pension and Other

Components of Pension and Other Post-employment Benefit (OPEB) Plans Net Periodic Benefit Costs	9 Months Ended
	Sep. 30, 2023
Retirement Benefits [Abstract]
Components of Pension and Other Post-employment Benefit (OPEB) Plans Net Periodic Benefit Costs	COMPONENTS OF PENSION AND OTHER POST-EMPLOYMENT BENEFIT (OPEB) PLANS NET PERIODIC BENEFIT COSTS: The components of Net Periodic Benefit (Credit) Cost are as follows: Pension Benefits Other Post-Employment Benefits Three Months Ended Nine Months Ended Three Months Ended Nine Months Ended 2023 2022 2023 2022 2023 2022 2023 2022 Service Cost $ 304 $ 301 $ 913 $ 905 $ — $ — $ — $ — Interest Cost 6,756 4,135 20,270 12,404 3,261 1,975 9,783 5,924 Expected Return on Plan Assets (9,867) (9,319) (29,602) (27,957) — — — — Amortization of Prior Service Credits — — — — (601) (601) (1,804) (1,804) Amortization of Actuarial Loss 185 759 555 2,278 — 878 — 2,636 Net Periodic Benefit (Credit) Cost $ (2,622) $ (4,124) $ (7,864) $ (12,370) $ 2,660 $ 2,252 $ 7,979 $ 6,756 (Credits) expenses related to pension and other post-employment benefits are reflected in Operating and Other Costs in the Consolidated Statements of Income. Amounts reclassified out of accumulated other comprehensive income are reflected in Operating and Other Costs in the Consolidated Statements of Income.

Components of Coal Workers' Pne

Components of Coal Workers' Pneumoconiosis (CWP) and Workers' Compensation Net Periodic Benefit Costs	9 Months Ended
	Sep. 30, 2023
Retirement Benefits [Abstract]
Components of Coal Workers' Pneumoconiosis (CWP) and Workers' Compensation Net Periodic Benefit Costs	COMPONENTS OF COAL WORKERS’ PNEUMOCONIOSIS (CWP) AND WORKERS’ COMPENSATION NET PERIODIC BENEFIT COSTS: The components of Net Periodic Benefit Cost are as follows: CWP Workers' Compensation Three Months Ended Nine Months Ended Three Months Ended Nine Months Ended 2023 2022 2023 2022 2023 2022 2023 2022 Service Cost $ 578 $ 727 $ 1,734 $ 2,179 $ 1,400 $ 1,230 $ 4,198 $ 3,690 Interest Cost 2,071 1,265 6,214 3,795 628 343 1,885 1,027 Amortization of Actuarial (Gain) Loss (261) 1,059 (784) 3,178 (512) (106) (1,537) (316) State Administrative Fees and Insurance Bond Premiums — — — — 471 449 1,482 1,334 Net Periodic Benefit Cost $ 2,388 $ 3,051 $ 7,164 $ 9,152 $ 1,987 $ 1,916 $ 6,028 $ 5,735 Expenses related to CWP and workers’ compensation are reflected in Operating and Other Costs in the Consolidated Statements of Income. Amounts reclassified out of accumulated other comprehensive income are reflected in Operating and Other Costs in the Consolidated Statements of Income.

Income Taxes

Income Taxes	9 Months Ended
Income Taxes	Sep. 30, 2023
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES: The Company recorded its provision for income taxes for the three and nine months ended September 30, 2023 of $21,032, or 17.3%, and $100,199, or 16.7%, respectively, of earnings before income taxes, based on its annual estimated income tax rate adjusted for discrete items. The effective tax rate for the three and nine months ended September 30, 2023 differs from the U.S. federal statutory rate of 21%, primarily due to the tax benefit for excess percentage depletion and foreign derived intangible income. These tax provision amounts also include discrete tax adjustments primarily related to equity compensation. The provision for income taxes for the three and nine months ended September 30, 2022 of $39,414, or 20.6%, and $59,115, or 17.8%, respectively, of earnings before income taxes was based on the Company's annual estimated income tax rate adjusted for discrete items. The effective tax rate for the three and nine months ended September 30, 2022 differed from the U.S. federal statutory rate of 21%, primarily due to the tax benefit for excess percentage depletion and foreign derived intangible income, partially offset by tax expense related to compensation. The tax provision amounts also included discrete tax adjustments primarily related to equity compensation and acquiring the remaining interest in a former equity investment. On August 16, 2022, the President of the United States signed into law the Inflation Reduction Act of 2022. Management does not expect this legislation to have a material impact on the Company's financial statements. The Company is subject to taxation in the United States and certain of its various states, as well as Canada and certain of its various provinces. The Company is subject to examination for the tax periods 2018 through 2022 for federal and state returns.

Cash and Cash Equivalents and S

Cash and Cash Equivalents and Short-Term Investments	9 Months Ended
Cash and Cash Equivalents and Short-Term Investments	Sep. 30, 2023
Investments, Debt and Equity Securities [Abstract]
Cash and Cash Equivalents and Short-Term Investments	CASH AND CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS: September 30, 2023 2022 Cash and Cash Equivalents $ 167,586 $ 268,853 Restricted Cash - Current (1) 46,313 45,941 Restricted Cash - Non-current (1) 2,095 5,854 Cash and Cash Equivalents and Restricted Cash $ 215,994 $ 320,648 (1) Restricted Cash - Current is included in Other Current Assets in the accompanying Consolidated Balance Sheets. Restricted Cash - Non-current is included in Other Noncurrent Assets, net in the accompanying Consolidated Balance Sheets. During the nine months ended September 30, 2023, the Company invested in marketable debt securities, primarily comprised of highly liquid U.S. Treasury securities. The investments are held in the custody of financial institutions. These securities are classified as available-for-sale securities and have maturity dates ranging from October 2023 through July 2024, and thus are classified as current assets. The Company's investments in available-for-sale securities are as follows: September 30, 2023 Gross Unrealized Amortized Cost Allowance for Credit Losses Gains Losses Fair Value U.S. Treasury Securities $ 81,073 $ — $ — $ (64) $ 81,009 Available-for-sale investments are reported at fair value and any unrealized gains or losses are recognized in other comprehensive income, net of tax. The unrealized losses in the Company's portfolio at September 30, 2023 are the result of normal market fluctuations. Interest and dividends are included in net income when earned.

Credit Losses

Credit Losses	9 Months Ended
Credit Losses	Sep. 30, 2023
Credit Loss [Abstract]
Credit Losses	CREDIT LOSSES: Trade receivables are recorded at the invoiced amount and do not bear interest. Credit is extended based on an evaluation of a customer's financial condition, the importance of the customer or market for future business and a customer's ability to perform its obligations. Trade receivable balances are monitored against approved credit terms. Credit terms are reviewed and adjusted as considered necessary based on changes to a customer's credit profile. If a customer's credit deteriorates, the Company may reduce credit risk exposure by reducing credit terms, obtaining letters of credit, obtaining credit insurance, or requiring pre-payment for shipments. Other non-trade contractual arrangements consist primarily of overriding royalty agreements and other financial arrangements between the Company and various counterparties. The Company is exposed to credit losses primarily through sales of products and services. The Company's expected loss allowance methodology for accounts receivable is developed using historical collection experience, current and future economic and market conditions and a review of the current status of customers' trade and other accounts receivables. Due to the short-term nature of such receivables, the estimate of the amount of accounts receivable that may not be collected is based on an aging of the accounts receivable balances and the financial condition of customers. Additionally, specific allowance amounts are established to record the appropriate provision for customers that have a higher probability of default. The Company's monitoring activities include timely account reconciliations, dispute resolution, payment confirmation, and consideration of customers' financial condition and macroeconomic conditions. Balances are written off when determined to be uncollectible. Management estimates the allowance balance using relevant available information, from internal and external sources, relating to past events, current conditions, and reasonable and supportable forecasts. Historical credit loss experience provides the basis for the estimation of expected credit losses. Adjustments to historical loss information are made for changes to the assessment of anticipated payment, changes in economic conditions, current industry trends in the markets the Company serves, and changes in the financial health of the Company's counterparties. The following table provides a roll-forward of the allowance for credit losses that is deducted from the amortized cost basis of accounts receivable to present the net amount expected to be collected. Trade Receivables Other Non-Trade Contractual Beginning Balance, December 31, 2022 $ 1,731 $ 7,051 Provision for expected credit losses (1,276) (124) Write-off of uncollectible accounts — (45) Ending Balance, September 30, 2023 $ 455 $ 6,882

Inventories

Inventories	9 Months Ended
Inventories	Sep. 30, 2023
Inventory Disclosure [Abstract]
Inventories	INVENTORIES: Inventory components consist of the following: September 30, December 31, Coal $ 29,127 $ 11,315 Supplies 69,259 54,975 Total Inventories $ 98,386 $ 66,290 Inventories are stated at the lower of cost or net realizable value. The cost of coal inventories is determined by the first-in, first-out (“FIFO”) method. Coal inventory costs include labor, supplies, equipment costs, operating overhead, depreciation, depletion, amortization and other related costs. The cost of supplies inventory is determined by the average cost method and includes operating and maintenance supplies to be used in the Company's coal operations.

Accounts Receivable Securitizat

Accounts Receivable Securitization	9 Months Ended
Accounts Receivable Securitization	Sep. 30, 2023
Receivables [Abstract]
Accounts Receivable Securitization	ACCOUNTS RECEIVABLE SECURITIZATION: At September 30, 2023, CONSOL Energy and certain of its U.S. subsidiaries are parties to a trade accounts receivable securitization facility with financial institutions for the sale on a continuous basis of eligible trade accounts receivable. In March 2020, the securitization facility was amended to, among other things, extend the maturity date from August 30, 2021 to March 27, 2023. In July 2022, the securitization facility was again amended to, among other things, extend the maturity date to July 29, 2025. Pursuant to the securitization facility, CONSOL Thermal Holdings LLC, an indirect, wholly-owned subsidiary of the Company, sells trade receivables to CONSOL Pennsylvania Coal Company LLC, a wholly-owned subsidiary of the Company. CONSOL Marine Terminals LLC, a wholly-owned subsidiary of the Company, and CONSOL Pennsylvania Coal Company LLC sell and/or contribute trade receivables (including receivables sold to CONSOL Pennsylvania Coal Company LLC by CONSOL Thermal Holdings LLC) to CONSOL Funding LLC, a wholly-owned subsidiary of the Company (the “SPV”). The SPV, in turn, pledges its interests in the receivables to PNC Bank, N.A., which either makes loans or issues letters of credit on behalf of the SPV. The maximum amount of advances and letters of credit outstanding under the securitization facility may not exceed $100,000. Loans under the securitization facility accrue interest at a reserve-adjusted market index rate equal to the applicable term Secured Overnight Financing Rate (“SOFR”). Loans and letters of credit under the securitization facility also accrue a program fee and a letter of credit participation fee, respectively, ranging from 2.00% to 2.50% per annum depending on the total net leverage ratio of CONSOL Energy. In addition, the SPV paid certain structuring fees to PNC Capital Markets LLC and pays other customary fees to the lenders, including a fee on unused commitments equal to 0.60% per annum.

Property, Plant and Equipment

Property, Plant and Equipment	9 Months Ended
Property, Plant and Equipment	Sep. 30, 2023
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment	PROPERTY, PLANT AND EQUIPMENT: Property, plant and equipment consists of the following: September 30, December 31, Plant and Equipment $ 3,429,950 $ 3,330,755 Coal Properties and Surface Lands 904,992 898,628 Airshafts 487,506 481,090 Mine Development 366,260 366,241 Advance Mining Royalties 331,948 331,863 Total Property, Plant and Equipment 5,520,656 5,408,577 Less: Accumulated Depreciation, Depletion and Amortization 3,603,830 3,448,495 Total Property, Plant and Equipment - Net $ 1,916,826 $ 1,960,082 Coal reserves are either owned in fee or controlled by lease. The duration of the leases vary; however, the lease terms are generally extended automatically to the exhaustion of economically recoverable reserves, as long as active mining continues. Coal interests held by lease provide the same rights as fee ownership for mineral extraction and are legally considered real property interests. As of September 30, 2023 and December 31, 2022, property, plant and equipment includes gross assets under finance leases of $74,507 and $90,516, respectively. Accumulated amortization for finance leases was $57,225 and $54,028 at September 30, 2023 and December 31, 2022, respectively. Amortization expense for assets under finance leases approximated $6,524 and $5,960 for the three months ended September 30, 2023 and 2022, respectively, and $20,369 and $18,058 for the nine months ended September 30, 2023 and 2022, respectively, and is included in Depreciation, Depletion and Amortization in the accompanying Consolidated Statements of Income.

Other Accrued Liabilities

Other Accrued Liabilities	9 Months Ended
Other Accrued Liabilities	Sep. 30, 2023
Other Liabilities Disclosure [Abstract]
Other Accrued Liabilities	OTHER ACCRUED LIABILITIES: September 30, December 31, Subsidence Liability $ 104,265 $ 96,623 Accrued Compensation and Benefits 72,754 67,893 Accrued Income Taxes 17,229 1,513 Accrued Other Taxes 7,865 10,551 Accrued Interest 3,212 7,942 Other 19,115 9,880 Current Portion of Long-Term Liabilities: Asset Retirement Obligations 32,974 29,644 Postretirement Benefits Other than Pensions 21,697 22,436 Pneumoconiosis Benefits 12,571 12,723 Workers' Compensation 9,615 10,451 Total Other Accrued Liabilities $ 301,297 $ 269,656

Long-Term Debt

Long-Term Debt	9 Months Ended
Long-Term Debt	Sep. 30, 2023
Debt Disclosure [Abstract]
Long-Term Debt	LONG-TERM DEBT: September 30, December 31, Debt: MEDCO Revenue Bonds in Series due September 2025 at 5.75% $ 102,865 $ 102,865 9.00% PEDFA Solid Waste Disposal Revenue Bonds due April 2028 75,000 75,000 11.00% Senior Secured Second Lien Notes due November 2025 — 99,107 Term Loan B due in September 2024 (Principal of $63,590 less Unamortized Discount of $106, 8.92% Weighted Average Interest Rate at December 31, 2022) — 63,484 Other Debt Arrangements 1,671 2,400 Advance Royalty Commitments (8.09% Weighted Average Interest Rate) 7,716 7,716 Less: Unamortized Debt Issuance Costs (1,804) (3,721) 185,448 346,851 Less: Amounts Due in One Year* (2,027) (4,741) Long-Term Debt $ 183,421 $ 342,110 * Excludes current portion of Finance Lease Obligations of $13,596 and $24,105 at September 30, 2023 and December 31, 2022, respectively. Revolving Credit Facility In November 2017, CONSOL Energy entered into a revolving credit facility with PNC Bank, N.A. (the “Revolving Credit Facility”). The Revolving Credit Facility has been amended several times, the most recent of which occurred in June 2023. This amendment increased the available revolving commitments from $260,000 to $355,000 and provides for the Company's ability to increase the revolving commitments or issue term loans in an additional amount not to exceed $45,000 and up to an aggregate total amount of $400,000. The maturity date of the Revolving Credit Facility is July 18, 2026. Borrowings under the Company's Revolving Credit Facility bear interest at a floating rate that is, at the Company's option, either (i) SOFR plus the applicable SOFR adjustment (as defined therein) depending on the applicable interest period plus an applicable margin or (ii) an alternate base rate plus an applicable margin. The applicable margin for the Revolving Credit Facility depends on the total net leverage ratio. Obligations under the Revolving Credit Facility are guaranteed by (i) all owners of the PAMC held by the Company, (ii) any other members of the Company’s group that own any portion of the collateral securing the Revolving Credit Facility, and (iii) subject to certain customary exceptions and agreed materiality thresholds, all other existing or future direct or indirect wholly-owned restricted subsidiaries of the Company. The obligations are secured by, subject to certain exceptions (including a limitation of pledges of equity interests in certain subsidiaries and certain thresholds with respect to real property), a first-priority lien on (i) the Company’s interest in the PAMC, (ii) the equity interests in PA Mining Complex LP held by the Company, (iii) the CONSOL Marine Terminal, (iv) the Itmann Mining Complex and (v) the 1.4 billion tons of Greenfield Reserves and Resources. The Revolving Credit Facility contains a number of customary affirmative covenants and a number of negative covenants, including (subject to certain exceptions) limitations on (among other things): indebtedness, liens, investments, acquisitions, dispositions, restricted payments and prepayments of junior indebtedness. The Revolving Credit Facility also includes covenants relating to (i) a maximum first lien gross leverage ratio, (ii) a maximum total net leverage ratio, and (iii) a minimum fixed charge coverage ratio. The maximum first lien gross leverage ratio is calculated as the ratio of Consolidated First Lien Debt to Consolidated EBITDA. Consolidated EBITDA, as used in the covenant calculation, excludes non-cash compensation expenses, non-recurring transaction expenses, extraordinary gains and losses, gains and losses on discontinued operations and gains and losses on debt extinguishment. The maximum total net leverage ratio is calculated as the ratio of Consolidated Indebtedness, minus Cash on Hand, to Consolidated EBITDA. The minimum fixed charge coverage ratio is calculated as the ratio of Consolidated EBITDA to Consolidated Fixed Charges. Consolidated Fixed Charges, as used in the covenant calculation, include cash interest payments, cash payments for income taxes, scheduled debt repayments, Maintenance Capital Expenditures and cash payments related to legacy employee liabilities to the extent in excess of amounts accrued in the calculation of Consolidated EBITDA. Under the Revolving Credit Facility, the maximum first lien gross leverage ratio shall be 1.50 to 1.00, the maximum total net leverage ratio shall be 2.50 to 1.00 and the minimum fixed charge coverage ratio shall be 1.10 to 1.00. The Company's first lien gross leverage ratio was 0.02 to 1.00 at September 30, 2023. The Company's total net leverage ratio was (0.05) to 1.00 at September 30, 2023. The Company's fixed charge coverage ratio was 3.53 to 1.00 at September 30, 2023. The Company was in compliance with all of its financial covenants under the Revolving Credit Facility as of September 30, 2023. At September 30, 2023, the Revolving Credit Facility had no borrowings outstanding and $139,195 of letters of credit outstanding, leaving $215,805 of unused capacity. At December 31, 2022, the Revolving Credit Facility had no borrowings outstanding and $103,029 of letters of credit outstanding, leaving $296,971 of unused capacity. From time to time, CONSOL Energy is required to post financial assurances to satisfy contractual and other requirements generated in the normal course of business. Some of these assurances are posted to comply with federal, state or other government agencies' statutes and regulations. CONSOL Energy sometimes uses letters of credit to satisfy these requirements and these letters of credit reduce the Company's borrowing facility capacity. The SPV is a non-guarantor subsidiary of the Revolving Credit Facility, and the SPV holds the assets pledged to the lender in the securitization facility. The SPV had total assets of $148,200 and $158,877, comprised mainly of $147,664 and $158,127 trade receivables, net, at September 30, 2023 and December 31, 2022, respectively. Net income attributable to the SPV was $235 and $6,400 for the three months ended September 30, 2023 and 2022, respectively, and $4,843 and $10,492 for the nine months ended September 30, 2023 and 2022, respectively, which primarily reflected intercompany fees related to purchasing the receivables, which are eliminated in the Consolidated Financial Statements contained within this Quarterly Report on Form 10-Q. During the nine months ended September 30, 2023 and 2022, there were no borrowings or payments under the accounts receivable securitization facility. See Note 9 - Accounts Receivable Securitization for additional information. Second Lien Notes In November 2017, CONSOL Energy issued $300,000 in aggregate principal amount of 11.00% Senior Secured Second Lien Notes due 2025 (the “Second Lien Notes”) pursuant to an indenture (the “Indenture”) dated as of November 13, 2017, by and between the Company and UMB Bank, N.A., a national banking association, as trustee and collateral trustee (the “Trustee”). On November 28, 2017, certain subsidiaries of the Company executed a supplement to the Indenture and became party to the Indenture as a guarantor (the “Guarantors”). The Second Lien Notes were secured by second priority liens on substantially all of the assets of the Company and the Guarantors that are pledged on a first-priority basis as collateral securing the Company’s obligations under the Revolving Credit Facility (described above), subject to certain exceptions under the Indenture. The Indenture contained covenants that limited the ability of the Company and the Guarantors to (i) incur, assume or guarantee additional indebtedness or issue preferred stock; (ii) create liens to secure indebtedness; (iii) declare or pay dividends on the Company’s common stock, redeem stock or make other distributions to the Company’s stockholders; (iv) make investments; (v) pay or make dividends, loans or other asset transfers from the Company’s restricted subsidiaries; (vi) merge or consolidate, or sell, transfer, lease or dispose of substantially all of the Company’s assets; (vii) sell or otherwise dispose of certain assets, including equity interests in subsidiaries; (viii) enter into transactions with affiliates; and (ix) create unrestricted subsidiaries. These covenants were subject to important exceptions and qualifications. If the Second Lien Notes achieved an investment grade rating from both Standard & Poor’s Ratings Services and Moody’s Investors Service, Inc. and no default under the Indenture existed, many of the foregoing covenants would have terminated and ceased to apply. During the nine months ended September 30, 2023, the Company spent $101,832 to fully redeem $99,107 of its outstanding Second Lien Notes. During the nine months ended September 30, 2022, the Company spent $26,387 to repurchase $25,000 of its outstanding Second Lien Notes. As a result of these transactions, $662 and $674 was included in Loss on Debt Extinguishment on the Consolidated Statements of Income for the three months ended September 30, 2023 and 2022, respectively, and $2,725 and $4,361 was included in Loss on Debt Extinguishment on the Consolidated Statements of Income for the nine months ended September 30, 2023 and 2022, respectively. PEDFA Bonds In April 2021, CONSOL Energy borrowed the proceeds received from the sale of tax-exempt bonds issued by the Pennsylvania Economic Development Financing Authority (“PEDFA”) in an aggregate principal amount of $75,000 (the “PEDFA Bonds”). The PEDFA Bonds bear interest at a fixed rate of 9.00% for an initial term of seven years. The PEDFA Bonds mature on April 1, 2051 but are subject to mandatory purchase by the Company on April 13, 2028, at the expiration of the initial term rate period. The PEDFA Bonds were issued pursuant to an indenture (the “PEDFA Indenture”) dated as of April 1, 2021, by and between PEDFA and Wilmington Trust, N.A., a national banking association, as trustee (the “PEDFA Notes Trustee”). PEDFA made a loan of the proceeds of the PEDFA Bonds to the Company pursuant to a Loan Agreement (the “Loan Agreement”) dated as of April 1, 2021 between PEDFA and the Company. Under the terms of the Loan Agreement, the Company agreed to make all payments of principal, interest and other amounts at any time due on the PEDFA Bonds or under the PEDFA Indenture. PEDFA assigned its rights as lender under the Loan Agreement, excluding certain reserved rights, to the PEDFA Notes Trustee. Certain subsidiaries of the Company (the “PEDFA Notes Guarantors”) executed a Guaranty Agreement (the “Guaranty”) dated as of April 1, 2021 in favor of the PEDFA Notes Trustee, guarantying the obligations of the Company under the Loan Agreement to pay the PEDFA Bonds when and as due. The obligations of the Company under the Loan Agreement and of the PEDFA Notes Guarantors under the Guaranty are secured by second priority liens on substantially all of the assets of the Company and the PEDFA Notes Guarantors. The Company started a capital construction project on the PAMC coarse refuse disposal area in 2017, which is now funded, in part, by the $75,000 of PEDFA Bond proceeds loaned to the Company. The Company expects to expend these funds as qualified work is completed. The Company utilized restricted cash in the amount of $8,442 and $16,313 during the three and nine months ended September 30, 2023, respectively, and $2,376 and $7,100 during the three and nine months ended September 30, 2022, respectively, for qualified expenses. Additionally, the Company had $20,320 and $35,516 in restricted cash at September 30, 2023 and December 31, 2022, respectively, associated with this financing that will be used to fund future spending on the coarse refuse disposal area.

Commitments and Contingent Liab

Commitments and Contingent Liabilities	9 Months Ended
Commitments and Contingent Liabilities	Sep. 30, 2023
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingent Liabilities	COMMITMENTS AND CONTINGENT LIABILITIES: The Company is subject to various lawsuits and claims with respect to such matters as personal injury, wrongful death, damage to property, exposure to hazardous substances, governmental regulations including environmental remediation, employment and contract disputes and other claims and actions arising out of the normal course of business. The Company accrues the estimated loss for these lawsuits and claims when the loss is probable and reasonably estimable. The Company’s estimated accruals related to these pending claims, individually and in the aggregate, are immaterial to the financial position, results of operations or cash flows of the Company as of September 30, 2023. It is possible that the aggregate loss in the future with respect to these lawsuits and claims could ultimately be material to the Company’s financial position, results of operations or cash flows; however, such amounts cannot be reasonably estimated. The amount claimed against the Company as of September 30, 2023 is disclosed below when an amount is expressly stated in the lawsuit or claim, which is not often the case. Fitzwater Litigation: Three nonunion retired coal miners have sued Fola Coal Company LLC, Consolidation Coal Company (“CCC”) and CONSOL of Kentucky Inc. (“COK”) (as well as the Company's former parent) in the U.S. District Court for the Southern District of West Virginia alleging ERISA violations in the termination of retiree health care benefits. The Plaintiffs contend they relied to their detriment on oral statements and promises of “lifetime health benefits” allegedly made by various members of management during Plaintiffs’ employment and that they were allegedly denied access to Summary Plan Documents that clearly reserved to the Company the right to modify or terminate the Retiree Health and Welfare Plan subject to Plaintiffs’ claims. Pursuant to Plaintiffs’ amended complaint filed on April 24, 2017, Plaintiffs request that retiree health benefits be reinstated and seek to represent a class of all nonunion retirees who were associated with AMVEST and COK areas of operation. On October 15, 2019, Plaintiffs’ supplemental motion for class certification was denied on all counts. On July 15, 2020, Plaintiffs filed an interlocutory appeal with the Fourth Circuit Court of Appeals on the Order denying class certification. The Fourth Circuit denied Plaintiffs' appeal on August 14, 2020. On October 1, 2020, the District Court entered a pretrial order setting the trial date, which was held in February 2021. No ruling has been issued by the judge. The Company believes it has a meritorious defense and intends to vigorously defend this suit. Casey Litigation: A class action lawsuit was filed on August 23, 2017 on behalf of two nonunion retired coal miners against CCC, COK, CONSOL Buchanan Mining Co., LLC and Kurt Salvatori, the Company's Chief Administrative Officer, in the U.S. District Court for the Southern District of West Virginia alleging ERISA violations in the termination of retiree health care benefits. Filed by the same lawyers who filed the Fitzwater litigation, and raising nearly identical claims, the Plaintiffs contend they relied to their detriment on oral promises of “lifetime health benefits” allegedly made by various members of management during Plaintiffs’ employment and that they were not provided with copies of Summary Plan Documents clearly reserving to the Company the right to modify or terminate the Retiree Health and Welfare Plan. Plaintiffs request that retiree health benefits be reinstated for them and their dependents and seek to represent a class of all nonunion retirees of any subsidiary of the Company's former parent that operated or employed individuals in McDowell or Mercer Counties, West Virginia, or Buchanan or Tazewell Counties, Virginia whose retiree welfare benefits were terminated. On December 1, 2017, the trial court judge in Fitzwater signed an order to consolidate Fitzwater with Casey. The Casey complaint was amended on March 1, 2018 to add new plaintiffs, add defendant CONSOL Pennsylvania Coal Company LLC and eliminate defendant CONSOL Buchanan Mining Co., LLC in an attempt to expand the class of retirees. On October 15, 2019, Plaintiffs’ supplemental motion for class certification was denied on all counts. On July 15, 2020, Plaintiffs filed an interlocutory appeal with the Fourth Circuit Court of Appeals on the Order denying class certification. The Fourth Circuit denied Plaintiffs' appeal on August 14, 2020. On October 1, 2020, the District Court entered a pretrial order setting the trial date, which was held in February 2021. No ruling has been issued by the judge. The Company believes it has a meritorious defense and intends to vigorously defend this suit. United Mine Workers of America 1992 Benefit Plan Litigation: In 2013, Murray Energy and its subsidiaries (“Murray”) entered into a stock purchase agreement (the “Murray sale agreement”) with the Company's former parent pursuant to which Murray acquired the stock of CCC and certain subsidiaries and certain other assets and liabilities. At the time of sale, the liabilities included certain retiree medical liabilities under the Coal Industry Retiree Health Benefit Act of 1992 (“Coal Act”) and certain federal black lung liabilities under the Black Lung Benefits Act (“BLBA”). Based upon information available, the Company estimates that the annual servicing costs of these liabilities are approximately $10 million to $20 million per year for the next ten years. The annual servicing cost would decline each year since the beneficiaries of the Coal Act consist principally of miners who retired prior to 1994. Murray filed for Chapter 11 bankruptcy in October 2019. As part of the bankruptcy proceedings, Murray unilaterally entered into a settlement with the United Mine Workers of America 1992 Benefit Plan (the “1992 Benefit Plan”) to transfer retirees in the Murray Energy Section 9711 Plan to the 1992 Benefit Plan. This was approved by the bankruptcy court on April 30, 2020. On May 2, 2020, the 1992 Benefit Plan filed an action in the United States District Court for the District of Columbia asking the court to make a determination whether the Company's former parent or the Company has any continuing retiree medical liabilities under the Coal Act (the “1992 Plan Lawsuit”). The Murray sale agreement includes indemnification by Murray with respect to the Coal Act and BLBA liabilities. In addition, the Company had agreed to indemnify its former parent relative to certain pre-separation liabilities. As of September 16, 2020, the Company entered into a settlement agreement with Murray and withdrew its claims in bankruptcy. On September 11, 2020, the Defendants in the 1992 Plan Lawsuit filed a Motion to Dismiss Plaintiffs' Second Amended Complaint which was denied by the Court on March 29, 2022. The Company will continue to vigorously defend any claims that attempt to transfer any of such liabilities directly or indirectly to the Company, including raising all applicable defenses against the 1992 Benefit Plan’s suit. With respect to this lawsuit, while a loss is possible, it is not probable and, as a result, no accrual has been recorded. Other Matters: On July 27, 2021, the Company's former parent informed the Company that it had received a request from the United Mine Workers of America (“UMWA”) 1974 Pension Plan for information related to the facts and circumstances surrounding the former parent's 2013 sale of certain of its coal subsidiaries to Murray (the “Letter Request”). The Letter Request indicates that litigation by the UMWA 1974 Pension Plan against the Company's former parent related to potential withdrawal liabilities from the plan created by the 2019 bankruptcy of Murray is reasonably foreseeable. There has been no indication of potential claims against the Company by the UMWA 1974 Pension Plan and, at this time, no liability of the Company's former parent has been assessed. The Company and various subsidiaries are defendants in certain other legal proceedings. In the opinion of management, based upon an investigation of these matters and discussion with legal counsel, the ultimate outcome of such other legal proceedings, individually and in the aggregate, is not expected to have a material adverse effect on the Company’s financial position, results of operations or liquidity. The following is a summary, as of September 30, 2023, of the financial guarantees, unconditional purchase obligations and letters of credit to certain third parties. Employee-related financial guarantees have primarily been provided to support the 1992 Benefit Plan and federal black lung and various state workers' compensation self-insurance programs. Environmental financial guarantees have primarily been provided to support various performance bonds related to reclamation and other environmental issues. Other financial guarantees have been extended to support sales contracts, insurance policies, surety indemnity agreements, legal matters, full and timely payments of mining equipment leases, and various other items necessary in the normal course of business. These amounts represent the maximum potential of total future payments that the Company could be required to make under these instruments. Certain letters of credit included in the table below were issued against other commitments included in this table. These amounts have not been reduced for potential recoveries under recourse or collateralization provisions. Generally, recoveries under reclamation bonds would be limited to the extent of the work performed at the time of the default. No amounts related to these commitments are recorded as liabilities in the financial statements. The Company's management believes that these commitments will not have a material adverse effect on the Company's financial condition. Amount of Commitment Expiration per Period Total Amounts Committed Less Than 1 Year 1-3 Years 3-5 Years Beyond 5 Years Letters of Credit: Employee-Related $ 48,034 $ 29,649 $ 18,385 $ — $ — Environmental 398 398 — — — Other 132,770 117,955 14,815 — — Total Letters of Credit $ 181,202 $ 148,002 $ 33,200 $ — $ — Surety Bonds: Employee-Related $ 81,010 $ 47,760 $ 33,250 $ — $ — Environmental 521,999 500,911 21,088 — — Other 3,848 3,643 205 — — Total Surety Bonds $ 606,857 $ 552,314 $ 54,543 $ — $ — The Company regularly evaluates the likelihood of default for all guarantees based on an expected loss analysis and records the fair value, if any, of its guarantees as an obligation in the Consolidated Financial Statements.

Derivatives

Derivatives	9 Months Ended
Derivatives	Sep. 30, 2023
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives	DERIVATIVES Coal Price Risk Management Positions The Company may sell or purchase forward contracts, swaps and options in the over-the-counter coal market in order to manage its exposure to coal prices. The Company has exposure to the risk of fluctuating coal prices related to forecasted or index-priced sales of coal or to the risk of changes in the fair value of a fixed price physical sales contract. All of the Company's coal-related derivative contracts were settled as of December 31, 2022. Tabular Derivatives Disclosures The Company had master netting agreements with all of its counterparties which allowed for the settlement of contracts in an asset position with contracts in a liability position in the event of default or termination. Such netting arrangements reduced the Company's credit exposure related to these counterparties to the extent the Company had any liability to such counterparties. For classification purposes, the Company recorded the net fair value of all the positions with a given counterparty as a net asset or liability in the Consolidated Balance Sheets. The fair value of derivatives reflected in the accompanying Consolidated Balance Sheets are set forth in the table below. September 30, 2023 December 31, 2022 Asset Derivatives Liability Derivatives Asset Derivatives Liability Derivatives Coal Swap Contracts $ — $ — $ 6,024 $ (21,166) Effect of Counterparty Netting — — (6,024) 6,024 Net Derivatives as Classified in the Consolidated Balance Sheets $ — $ — $ — $ (15,142) The Company did not seek cash flow hedge accounting treatment for its commodity derivative financial instruments and therefore, changes in fair value were reflected in earnings throughout the terms of those instruments. During the three and nine months ended September 30, 2022, the Company settled a portion of its commodity derivatives at losses of $81,311 and $241,486, respectively. Additionally, during the three and nine months ended September 30, 2022, the Company recognized adjustments to the fair value of its commodity derivatives of ($81,246) and $15,085, respectively. These settlements and fair value adjustments were included in Loss on Commodity Derivatives, net on the accompanying Consolidated Statements of Income. The Company classified the cash effects of its derivatives within the Cash Flows from Operating Activities section of the Consolidated Statements of Cash Flows.

Fair Value of Financial Instrum

Fair Value of Financial Instruments	9 Months Ended
Fair Value of Financial Instruments	Sep. 30, 2023
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	FAIR VALUE OF FINANCIAL INSTRUMENTS: CONSOL Energy determines the fair value of assets and liabilities based on the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants. The fair values are based on assumptions that market participants would use when pricing an asset or liability, including assumptions about risk and the risks inherent in valuation techniques and the inputs to valuations. The fair value hierarchy is based on whether the inputs to valuation techniques are observable or unobservable. Observable inputs reflect market data obtained from independent sources (including SOFR-based discount rates and U.S. Treasury-based rates), while unobservable inputs reflect the Company’s own assumptions of what market participants would use. The fair value hierarchy includes three levels of inputs that may be used to measure fair value as described below. Level One - Quoted prices for identical instruments in active markets. The Company's Level 1 assets include marketable debt securities, primarily highly liquid U.S. Treasury securities. Level Two - The fair value of the assets and liabilities included in Level 2 are based on standard industry income approach models that use significant observable inputs, including SOFR-based discount rates and U.S. Treasury-based rates. The Company's Level 2 assets and liabilities include coal commodity contracts with fair values derived from quoted prices in over-the-counter markets. Level Three - Unobservable inputs significant to the fair value measurement supported by little or no market activity. In those cases when the inputs used to measure fair value meet the definition of more than one level of the fair value hierarchy, the lowest level input that is significant to the fair value measurement in its totality determines the applicable level in the fair value hierarchy. The financial instruments measured at fair value on a recurring basis are summarized below: Fair Value Measurements at Fair Value Measurements at September 30, 2023 December 31, 2022 Description Level 1 Level 2 Level 3 Level 1 Level 2 Level 3 Commodity Derivatives $ — $ — $ — $ — $ (15,142) $ — U.S. Treasury Securities $ 81,009 $ — $ — $ — $ — $ — The following methods and assumptions were used to estimate the fair value for which the fair value option was not elected: Long-term debt: The fair value of long-term debt is measured using unadjusted quoted market prices or estimated using discounted cash flow analyses. The discounted cash flow analyses are based on current market rates for instruments with similar cash flows. The carrying amounts and fair values of financial instruments for which the fair value option was not elected are as follows: September 30, 2023 December 31, 2022 Carrying Fair Carrying Fair Long-Term Debt (Excluding Debt Issuance Costs) $ 187,252 $ 201,767 $ 350,572 $ 365,789 Certain of the Company’s debt is actively traded on a public market and, as a result, constitutes Level 1 fair value measurements. The portion of the Company’s debt obligations that is not actively traded is valued through reference to the applicable underlying benchmark rate and, as a result, constitutes Level 2 fair value measurements.

Segment Information

Segment Information	9 Months Ended
Segment Information	Sep. 30, 2023
Segment Reporting [Abstract]
Segment Information	EGMENT INFORMATION: The Company reports segment information based on the “management” approach. The management approach designates the internal reporting used by management to make decisions on and assess performance of the Company’s reportable segments. CONSOL Energy presently consists of two reportable segments, the PAMC and the CONSOL Marine Terminal. The PAMC includes the Bailey Mine, the Enlow Fork Mine, the Harvey Mine and a centralized preparation plant. The PAMC segment’s principal activities include the mining, preparation and marketing of bituminous coal, sold primarily to industrial end-users, power generators and metallurgical end-users. The CONSOL Marine Terminal provides coal export terminal services through the Port of Baltimore. General and administrative costs are allocated to the Company’s segments based on a percentage of resources utilized, a percentage of total revenue and a percentage of total projected capital expenditures. CONSOL Energy’s Other segment includes revenue and expenses from various corporate and diversified business activities that are not allocated to the PAMC or the CONSOL Marine Terminal segments. The diversified business activities currently include the Itmann Mining Complex, the Greenfield Reserves and Resources, closed mine activities, other income, gain on asset sales related to non-core assets, and gain/loss on debt extinguishment. Additionally, interest expense and income taxes, as well as various other non-operated activities, none of which are individually significant to the Company, are also reflected in CONSOL Energy's Other segment and are not allocated to the PAMC and CONSOL Marine Terminal segments. The Company evaluates the performance of its segments utilizing Adjusted EBITDA and various sales and production metrics. Adjusted EBITDA measures the operating performance of the Company's segments and is used to allocate resources to the Company's segments. Reportable segment results for the three months ended September 30, 2023 are: PAMC CONSOL Marine Terminal Other, Corporate and Eliminations Consolidated Coal Revenue $ 431,090 $ — $ 18,528 $ 449,618 Terminal Revenue — 22,676 — 22,676 Freight Revenue 64,507 — 3,865 68,372 Total Revenue from Contracts with Customers $ 495,597 $ 22,676 $ 22,393 $ 540,666 Adjusted EBITDA $ 183,790 $ 14,853 $ (13,135) $ 185,508 Segment Assets $ 1,616,224 $ 83,422 $ 959,869 $ 2,659,515 Depreciation, Depletion and Amortization $ 50,663 $ 1,181 $ 6,948 $ 58,792 Capital Expenditures $ 35,404 $ 2,630 $ 3,633 $ 41,667 Reportable segment results for the three months ended September 30, 2022 are: PAMC CONSOL Marine Terminal Other, Corporate and Eliminations Consolidated Coal Revenue $ 465,643 $ — $ 6,915 $ 472,558 Terminal Revenue — 14,840 — 14,840 Freight Revenue 42,618 — 1 42,619 Total Revenue from Contracts with Customers $ 508,261 $ 14,840 $ 6,916 $ 530,017 Adjusted EBITDA $ 179,516 $ 8,328 $ (6,963) $ 180,881 Segment Assets $ 1,782,514 $ 80,534 $ 859,228 $ 2,722,276 Depreciation, Depletion and Amortization $ 49,316 $ 1,149 $ 4,308 $ 54,773 Capital Expenditures $ 50,112 $ 2,248 $ 6,035 $ 58,395 Reportable segment results for the nine months ended September 30, 2023 are: PAMC CONSOL Marine Terminal Other, Corporate and Eliminations Consolidated Coal Revenue $ 1,515,603 $ — $ 58,493 $ 1,574,096 Terminal Revenue — 80,755 — 80,755 Freight Revenue 206,725 — 10,710 217,435 Total Revenue from Contracts with Customers $ 1,722,328 $ 80,755 $ 69,203 $ 1,872,286 Adjusted EBITDA $ 784,819 $ 59,324 $ (36,385) $ 807,758 Segment Assets $ 1,616,224 $ 83,422 $ 959,869 $ 2,659,515 Depreciation, Depletion and Amortization $ 152,302 $ 3,513 $ 27,056 $ 182,871 Capital Expenditures $ 99,706 $ 4,329 $ 13,714 $ 117,749 Reportable segment results for the nine months ended September 30, 2022 are: PAMC CONSOL Marine Terminal Other, Corporate and Eliminations Consolidated Coal Revenue $ 1,457,595 $ — $ 24,073 $ 1,481,668 Terminal Revenue — 58,016 — 58,016 Freight Revenue 128,394 — 3,025 131,419 Total Revenue from Contracts with Customers $ 1,585,989 $ 58,016 $ 27,098 $ 1,671,103 Adjusted EBITDA $ 541,753 $ 37,882 $ (13,185) $ 566,450 Segment Assets $ 1,782,514 $ 80,534 $ 859,228 $ 2,722,276 Depreciation, Depletion and Amortization $ 149,737 $ 3,456 $ 15,414 $ 168,607 Capital Expenditures $ 84,763 $ 2,608 $ 47,085 $ 134,456 For the three and nine months ended September 30, 2023 and 2022, the Company's reportable segments had revenues from the following customers, each comprising over 10% of the Company's total sales: Three Months Ended Nine Months Ended 2023 2022 2023 2022 Customer A $ 72,335 * $ 207,746 * Customer B $ 69,322 * $ 220,726 * Customer C * $ 100,635 * $ 311,707 Customer D * $ 98,424 * $ 229,595 *Revenues from these customers during the periods presented were less than 10% of the Company's total sales. Reconciliation of Segment Information to Consolidated Amounts: Three Months Ended September 30, 2023 PAMC CONSOL Marine Terminal Other Total Company Net Income (Loss) $ 132,442 $ 12,098 $ (43,815) $ 100,725 Income Tax Expense — — 21,032 21,032 Interest Expense — 1,524 5,121 6,645 Interest Income (723) — (3,301) (4,024) Depreciation, Depletion and Amortization 50,663 1,181 6,948 58,792 Stock-Based Compensation 1,408 50 218 1,676 Loss on Debt Extinguishment — — 662 662 Adjusted EBITDA $ 183,790 $ 14,853 $ (13,135) $ 185,508 Three Months Ended September 30, 2022 PAMC CONSOL Marine Terminal Other Total Company Net Income (Loss) $ 210,855 $ 5,602 $ (64,336) $ 152,121 Income Tax Expense — — 39,414 39,414 Interest Expense — 1,528 10,434 11,962 Interest Income (437) — (1,104) (1,541) Depreciation, Depletion and Amortization 49,316 1,149 4,308 54,773 Stock-Based Compensation 1,028 49 147 1,224 Loss on Debt Extinguishment — — 674 674 Equity Affiliate Adjustments — — 3,500 3,500 Fair Value Adjustment of Commodity Derivative Instruments (81,246) — — (81,246) Adjusted EBITDA $ 179,516 $ 8,328 $ (6,963) $ 180,881 Nine Months Ended September 30, 2023 PAMC CONSOL Marine Terminal Other Total Company Net Income (Loss) $ 627,053 $ 50,981 $ (179,209) $ 498,825 Income Tax Expense — — 100,199 100,199 Interest Expense — 4,576 19,503 24,079 Interest Income (1,644) — (7,758) (9,402) Depreciation, Depletion and Amortization 152,302 3,513 27,056 182,871 Stock-Based Compensation 7,108 254 1,099 8,461 Loss on Debt Extinguishment — — 2,725 2,725 Adjusted EBITDA $ 784,819 $ 59,324 $ (36,385) $ 807,758 Nine Months Ended September 30, 2022 PAMC CONSOL Marine Terminal Other Total Company Net Income (Loss) $ 372,408 $ 29,569 $ (128,015) $ 273,962 Income Tax Expense — — 59,115 59,115 Interest Expense 205 4,589 34,641 39,435 Interest Income (1,304) — (3,005) (4,309) Depreciation, Depletion and Amortization 149,737 3,456 15,414 168,607 Stock-Based Compensation 5,622 268 804 6,694 Loss on Debt Extinguishment — — 4,361 4,361 Equity Affiliate Adjustments — — 3,500 3,500 Fair Value Adjustment of Commodity Derivative Instruments 15,085 — — 15,085 Adjusted EBITDA $ 541,753 $ 37,882 $ (13,185) $ 566,450

Stock and Debt Repurchases

Stock and Debt Repurchases	9 Months Ended
Stock and Debt Repurchases	Sep. 30, 2023
Equity [Abstract]
Stock and Debt Repurchases	STOCK AND DEBT REPURCHASES: In December 2017, CONSOL Energy’s Board of Directors approved a program to repurchase, from time to time, the Company's outstanding shares of common stock or its Second Lien Notes. Since the program's inception, the Company's Board of Directors has subsequently amended the program several times. The most recent amendment occurred in April 2023, in which the aggregate limit of the Company's repurchase authority was raised to $1,000,000. The program terminates on December 31, 2024. Under the terms of the program, CONSOL Energy is permitted to make repurchases in the open market, in privately negotiated transactions, accelerated repurchase programs or in structured share repurchase programs. CONSOL Energy is also authorized to enter into one or more 10b5-1 plans with respect to any of the repurchases. Any repurchases of common stock or notes are to be funded from available cash on hand or short-term borrowings. The program does not obligate CONSOL Energy to acquire any particular amount of its common stock or notes, and the program can be modified or suspended at any time at the Company’s discretion. The program is conducted in compliance with applicable legal requirements and within the limits imposed by any credit agreement, receivables purchase agreement or indenture. During the nine months ended September 30, 2023, the Company did not make any open market repurchases of its Second Lien Notes in accordance with this program. During the nine months ended September 30, 2022, the Company spent $26,387 to repurchase $25,000 of its Second Lien Notes in accordance with this program. During the nine months ended September 30, 2023, the Company repurchased and retired 3,980,389 shares of the Company's common stock at an average price of $67.68 per share. No shares of common stock were repurchased under this program during the nine months ended September 30, 2022.

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
Pay vs Performance Disclosure - USD ($) $ in Thousands	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2023	Sep. 30, 2022
Pay vs Performance Disclosure
Net Income	$ 100,725	$ 167,723	$ 230,377	$ 152,121	$ 126,291	$ (4,450)	$ 498,825	$ 273,962

Insider Trading Arrangements

Insider Trading Arrangements	3 Months Ended	9 Months Ended
Insider Trading Arrangements	Sep. 30, 2023 shares	Sep. 30, 2023 shares
Trading Arrangements, by Individual
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false
James A. Brock [Member]
Trading Arrangements, by Individual
Material Terms of Trading Arrangement		On September 13, 2023, James A. Brock, a member of our Board of Directors and Chief Executive Officer of the Company, adopted a Rule 10b5-1 trading arrangement for the sale of up to 80,000 shares of our Common Stock, subject to certain conditions. First trades will not occur until December 18, 2023, and the arrangement's expiration date is June 28, 2024.
Name	James A. Brock
Title	member of our Board of Directors and Chief Executive Officer
Rule 10b5-1 Arrangement Adopted	true
Adoption Date	September 13, 2023
Arrangement Duration	193 days
Aggregate Available	80,000	80,000
Martha A. Wiegand [Member]
Trading Arrangements, by Individual
Material Terms of Trading Arrangement		On September 15, 2023, Martha A. Wiegand, General Counsel and Secretary of the Company, adopted a Rule 10b5-1 trading arrangement for the sale of up to 10,000 shares of our Common Stock, subject to certain conditions. First trades will not occur until December 15, 2023, and the arrangement's expiration date is June 14, 2024.
Name	Martha A. Wiegand
Title	General Counsel and Secretary of the Company
Rule 10b5-1 Arrangement Adopted	true
Adoption Date	September 15, 2023
Arrangement Duration	182 days
Aggregate Available	10,000	10,000

Basis of Presentation (Policies

Basis of Presentation (Policies)	9 Months Ended
Basis of Presentation (Policies)	Sep. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The accompanying Consolidated Financial Statements have been prepared in accordance with generally accepted accounting principles for interim financial information and with the instructions to Form 10-Q and Article 10-01 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by accounting principles generally accepted in the United States (“GAAP”) for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring adjustments) considered necessary for a fair presentation have been included. Operating results for the three and nine months ended September 30, 2023 are not necessarily indicative of the results that may be expected for future periods. The Consolidated Balance Sheet at December 31, 2022 has been derived from the Audited Consolidated Financial Statements at that date but does not include all disclosures required by GAAP. This Form 10-Q report should be read in conjunction with CONSOL Energy Inc.'s Annual Report on Form 10-K for the year ended December 31, 2022. All dollar amounts discussed in these Notes to Consolidated Financial Statements are in thousands of U.S. dollars, except for per share amounts, and unless otherwise indicated.
Basis of Consolidation	Basis of Consolidation The Consolidated Financial Statements include the accounts of CONSOL Energy Inc. and its wholly-owned and majority-owned and/or controlled subsidiaries. All significant intercompany transactions and accounts have been eliminated in consolidation.
Recent Accounting Pronouncements	Recent Accounting Pronouncements In August 2023, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2023-05 - Business Combinations—Joint Venture Formations (Subtopic 805-60). The amendments in this update address the accounting for contributions made to a joint venture, upon formation, in a joint venture's separate financial statements. The objectives of the amendments are to (1) provide decision-useful information to investors and other allocators of capital in a joint venture's financial statements and (2) reduce diversity in practice. The amendments in this update do not amend the definition of a joint venture, the accounting by an equity method investor for its investment in a joint venture, or the accounting by a joint venture for contributions received after its formation. The amendments in this update are effective prospectively for all joint venture formations with a formation date on or after January 1, 2025. Existing joint ventures may elect to apply the guidance retrospectively. Management is currently evaluating the impact of this guidance, but does not expect this update to have a material impact on the Company's financial statements. In March 2023, the FASB issued ASU 2023-02 - Investments—Equity Method and Joint Ventures (Topic 323). The amendments in this update permit reporting entities to elect to account for their tax equity investments, regardless of the tax credit program from which the income tax credits are received, using the proportional amortization method if certain conditions are met. The amendments in this update apply to all reporting entities that hold (1) tax equity investments that meet the conditions for and elect to account for them using the proportional amortization method or (2) an investment in a low-income-housing tax credit (LIHTC) structure through a limited liability entity that is not accounted for using the proportional amortization method and to which certain LIHTC-specific guidance removed from Subtopic 323-740, Investments—Equity Method and Joint Ventures—Income Taxes, has been applied. The amendments in this update are effective for fiscal years beginning after December 15, 2023, including interim periods within those fiscal years. Management is currently evaluating the impact of this guidance, but does not expect this update to have a material impact on the Company's financial statements.
Earnings per Share	Earnings per ShareBasic earnings per share are computed by dividing net income by the weighted average number of shares outstanding during the reporting period. Dilutive earnings per share are computed similarly to basic earnings per share, except that the weighted average number of shares outstanding is increased to include additional shares from restricted stock units and performance share units, if dilutive. The number of additional shares is calculated by assuming that outstanding restricted stock units and performance share units were released, and that the proceeds from such activities, as applicable, were used to acquire shares of common stock at the average market price during the reporting period.
Reclassifications	Reclassifications Certain amounts in prior periods have been reclassified to conform with the report classifications of the current period. These reclassifications had no effect on previously reported total assets, stockholders' equity, net income or cash flows from operating activities.

Basis of Presentation (Tables)

Basis of Presentation (Tables)	9 Months Ended
Basis of Presentation (Tables)	Sep. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share	The table below sets forth the share-based awards that have been excluded from the computation of diluted earnings per share because their effect would be anti-dilutive: Three Months Ended Nine Months Ended 2023 2022 2023 2022 Anti-Dilutive Restricted Stock Units — 80 1,031 403 Anti-Dilutive Performance Share Units — — — — — 80 1,031 403
Schedule of Earnings Per Share, Basic and Diluted	The computations for basic and dilutive earnings per share are as follows: Dollars in thousands, except per share data Three Months Ended Nine Months Ended 2023 2022 2023 2022 Numerator: Net Income $ 100,725 $ 152,121 $ 498,825 $ 273,962 Denominator: Weighted-average shares of common stock outstanding 31,928,295 34,870,154 33,330,892 34,793,069 Effect of dilutive shares 464,394 906,437 479,628 900,513 Weighted-average diluted shares of common stock outstanding 32,392,689 35,776,591 33,810,520 35,693,582 Earnings per Share: Basic $ 3.15 $ 4.36 $ 14.97 $ 7.87 Dilutive $ 3.11 $ 4.25 $ 14.75 $ 7.68

Revenue From Contracts With C_2

Revenue From Contracts With Customers (Tables)	9 Months Ended
Revenue From Contracts With Customers (Tables)	Sep. 30, 2023
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue	The following tables disaggregate CONSOL Energy's revenue from contracts with customers by product type and market: Three Months Ended September 30, 2023 Domestic Export Total Power Generation $ 169,143 $ 37,134 $ 206,277 Industrial 11,076 169,709 180,785 Metallurgical — 62,556 62,556 Total Coal Revenue 180,219 269,399 449,618 Terminal Revenue 22,676 Freight Revenue 68,372 Total Revenue from Contracts with Customers $ 540,666 Three Months Ended September 30, 2022 Domestic Export Total Power Generation $ 231,274 $ 118,765 $ 350,039 Industrial 3,877 51,956 55,833 Metallurgical 3,536 63,150 66,686 Total Coal Revenue 238,687 233,871 472,558 Terminal Revenue 14,840 Freight Revenue 42,619 Total Revenue from Contracts with Customers $ 530,017 Nine Months Ended September 30, 2023 Domestic Export Total Power Generation $ 476,598 $ 270,736 $ 747,334 Industrial 29,814 560,382 590,196 Metallurgical 10,627 225,939 236,566 Total Coal Revenue 517,039 1,057,057 1,574,096 Terminal Revenue 80,755 Freight Revenue 217,435 Total Revenue from Contracts with Customers $ 1,872,286 Nine Months Ended September 30, 2022 Domestic Export Total Power Generation $ 658,630 $ 261,837 $ 920,467 Industrial 14,671 312,617 327,288 Metallurgical 3,536 230,377 233,913 Total Coal Revenue 676,837 804,831 1,481,668 Terminal Revenue 58,016 Freight Revenue 131,419 Total Revenue from Contracts with Customers $ 1,671,103

Components of Pension and Oth_2

Components of Pension and Other Post-employment Benefit (OPEB) Plans Net Periodic Benefit Costs (Tables)	9 Months Ended
	Sep. 30, 2023
Retirement Benefits [Abstract]
Schedule of Defined Benefit Plans Disclosures	The components of Net Periodic Benefit (Credit) Cost are as follows: Pension Benefits Other Post-Employment Benefits Three Months Ended Nine Months Ended Three Months Ended Nine Months Ended 2023 2022 2023 2022 2023 2022 2023 2022 Service Cost $ 304 $ 301 $ 913 $ 905 $ — $ — $ — $ — Interest Cost 6,756 4,135 20,270 12,404 3,261 1,975 9,783 5,924 Expected Return on Plan Assets (9,867) (9,319) (29,602) (27,957) — — — — Amortization of Prior Service Credits — — — — (601) (601) (1,804) (1,804) Amortization of Actuarial Loss 185 759 555 2,278 — 878 — 2,636 Net Periodic Benefit (Credit) Cost $ (2,622) $ (4,124) $ (7,864) $ (12,370) $ 2,660 $ 2,252 $ 7,979 $ 6,756

Components of Coal Workers' P_2

Components of Coal Workers' Pneumoconiosis (CWP) and Workers' Compensation Net Periodic Benefit Costs (Tables)	9 Months Ended
	Sep. 30, 2023
Retirement Benefits [Abstract]
Schedule of Changes in Accumulated Postemployment Benefit Obligations	The components of Net Periodic Benefit Cost are as follows: CWP Workers' Compensation Three Months Ended Nine Months Ended Three Months Ended Nine Months Ended 2023 2022 2023 2022 2023 2022 2023 2022 Service Cost $ 578 $ 727 $ 1,734 $ 2,179 $ 1,400 $ 1,230 $ 4,198 $ 3,690 Interest Cost 2,071 1,265 6,214 3,795 628 343 1,885 1,027 Amortization of Actuarial (Gain) Loss (261) 1,059 (784) 3,178 (512) (106) (1,537) (316) State Administrative Fees and Insurance Bond Premiums — — — — 471 449 1,482 1,334 Net Periodic Benefit Cost $ 2,388 $ 3,051 $ 7,164 $ 9,152 $ 1,987 $ 1,916 $ 6,028 $ 5,735

Cash and Cash Equivalents and_2

Cash and Cash Equivalents and Short-Term Investments (Tables)	9 Months Ended
	Sep. 30, 2023
Investments, Debt and Equity Securities [Abstract]
Cash, Cash Equivalents and Investments	September 30, 2023 2022 Cash and Cash Equivalents $ 167,586 $ 268,853 Restricted Cash - Current (1) 46,313 45,941 Restricted Cash - Non-current (1) 2,095 5,854 Cash and Cash Equivalents and Restricted Cash $ 215,994 $ 320,648 (1) Restricted Cash - Current is included in Other Current Assets in the accompanying Consolidated Balance Sheets. Restricted Cash - Non-current is included in Other Noncurrent Assets, net in the accompanying Consolidated Balance Sheets.
Debt Securities, Available-for-Sale	The Company's investments in available-for-sale securities are as follows: September 30, 2023 Gross Unrealized Amortized Cost Allowance for Credit Losses Gains Losses Fair Value U.S. Treasury Securities $ 81,073 $ — $ — $ (64) $ 81,009

Credit Losses (Tables)

Credit Losses (Tables)	9 Months Ended
Credit Losses (Tables)	Sep. 30, 2023
Credit Loss [Abstract]
Accounts Receivable, Allowance for Credit Loss	Trade Receivables Other Non-Trade Contractual Beginning Balance, December 31, 2022 $ 1,731 $ 7,051 Provision for expected credit losses (1,276) (124) Write-off of uncollectible accounts — (45) Ending Balance, September 30, 2023 $ 455 $ 6,882

Inventories (Tables)

Inventories (Tables)	9 Months Ended
Inventories (Tables)	Sep. 30, 2023
Inventory Disclosure [Abstract]
Schedule of Inventory, Current	September 30, December 31, Coal $ 29,127 $ 11,315 Supplies 69,259 54,975 Total Inventories $ 98,386 $ 66,290

Property, Plant and Equipment (

Property, Plant and Equipment (Tables)	9 Months Ended
Property, Plant and Equipment (Tables)	Sep. 30, 2023
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment	Property, plant and equipment consists of the following: September 30, December 31, Plant and Equipment $ 3,429,950 $ 3,330,755 Coal Properties and Surface Lands 904,992 898,628 Airshafts 487,506 481,090 Mine Development 366,260 366,241 Advance Mining Royalties 331,948 331,863 Total Property, Plant and Equipment 5,520,656 5,408,577 Less: Accumulated Depreciation, Depletion and Amortization 3,603,830 3,448,495 Total Property, Plant and Equipment - Net $ 1,916,826 $ 1,960,082

Other Accrued Liabilities (Tabl

Other Accrued Liabilities (Tables)	9 Months Ended
Other Accrued Liabilities (Tables)	Sep. 30, 2023
Other Liabilities Disclosure [Abstract]
Schedule of Accrued Liabilities	September 30, December 31, Subsidence Liability $ 104,265 $ 96,623 Accrued Compensation and Benefits 72,754 67,893 Accrued Income Taxes 17,229 1,513 Accrued Other Taxes 7,865 10,551 Accrued Interest 3,212 7,942 Other 19,115 9,880 Current Portion of Long-Term Liabilities: Asset Retirement Obligations 32,974 29,644 Postretirement Benefits Other than Pensions 21,697 22,436 Pneumoconiosis Benefits 12,571 12,723 Workers' Compensation 9,615 10,451 Total Other Accrued Liabilities $ 301,297 $ 269,656

Long-Term Debt (Tables)

Long-Term Debt (Tables)	9 Months Ended
Long-Term Debt (Tables)	Sep. 30, 2023
Debt Disclosure [Abstract]
Schedule of Long-Term Debt Instruments	September 30, December 31, Debt: MEDCO Revenue Bonds in Series due September 2025 at 5.75% $ 102,865 $ 102,865 9.00% PEDFA Solid Waste Disposal Revenue Bonds due April 2028 75,000 75,000 11.00% Senior Secured Second Lien Notes due November 2025 — 99,107 Term Loan B due in September 2024 (Principal of $63,590 less Unamortized Discount of $106, 8.92% Weighted Average Interest Rate at December 31, 2022) — 63,484 Other Debt Arrangements 1,671 2,400 Advance Royalty Commitments (8.09% Weighted Average Interest Rate) 7,716 7,716 Less: Unamortized Debt Issuance Costs (1,804) (3,721) 185,448 346,851 Less: Amounts Due in One Year* (2,027) (4,741) Long-Term Debt $ 183,421 $ 342,110

Commitments and Contingent Li_2

Commitments and Contingent Liabilities (Tables)	9 Months Ended
Commitments and Contingent Liabilities (Tables)	Sep. 30, 2023
Commitments and Contingencies Disclosure [Abstract]
Schedule of Guarantor Obligations	Amount of Commitment Expiration per Period Total Amounts Committed Less Than 1 Year 1-3 Years 3-5 Years Beyond 5 Years Letters of Credit: Employee-Related $ 48,034 $ 29,649 $ 18,385 $ — $ — Environmental 398 398 — — — Other 132,770 117,955 14,815 — — Total Letters of Credit $ 181,202 $ 148,002 $ 33,200 $ — $ — Surety Bonds: Employee-Related $ 81,010 $ 47,760 $ 33,250 $ — $ — Environmental 521,999 500,911 21,088 — — Other 3,848 3,643 205 — — Total Surety Bonds $ 606,857 $ 552,314 $ 54,543 $ — $ —

Derivatives (Tables)

Derivatives (Tables)	9 Months Ended
Derivatives (Tables)	Sep. 30, 2023
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Instruments	September 30, 2023 December 31, 2022 Asset Derivatives Liability Derivatives Asset Derivatives Liability Derivatives Coal Swap Contracts $ — $ — $ 6,024 $ (21,166) Effect of Counterparty Netting — — (6,024) 6,024 Net Derivatives as Classified in the Consolidated Balance Sheets $ — $ — $ — $ (15,142)

Fair Value of Financial Instr_2

Fair Value of Financial Instruments (Tables)	9 Months Ended
Fair Value of Financial Instruments (Tables)	Sep. 30, 2023
Fair Value Disclosures [Abstract]
Schedule of Fair Value of Financial Instruments	The financial instruments measured at fair value on a recurring basis are summarized below: Fair Value Measurements at Fair Value Measurements at September 30, 2023 December 31, 2022 Description Level 1 Level 2 Level 3 Level 1 Level 2 Level 3 Commodity Derivatives $ — $ — $ — $ — $ (15,142) $ — U.S. Treasury Securities $ 81,009 $ — $ — $ — $ — $ —
Schedule of Carrying Values and Estimated Fair Values of Debt Instruments	The carrying amounts and fair values of financial instruments for which the fair value option was not elected are as follows: September 30, 2023 December 31, 2022 Carrying Fair Carrying Fair Long-Term Debt (Excluding Debt Issuance Costs) $ 187,252 $ 201,767 $ 350,572 $ 365,789

Segment Information (Tables)

Segment Information (Tables)	9 Months Ended
Segment Information (Tables)	Sep. 30, 2023
Segment Reporting [Abstract]
Schedule of Segment Reporting Information by Segment	Reportable segment results for the three months ended September 30, 2023 are: PAMC CONSOL Marine Terminal Other, Corporate and Eliminations Consolidated Coal Revenue $ 431,090 $ — $ 18,528 $ 449,618 Terminal Revenue — 22,676 — 22,676 Freight Revenue 64,507 — 3,865 68,372 Total Revenue from Contracts with Customers $ 495,597 $ 22,676 $ 22,393 $ 540,666 Adjusted EBITDA $ 183,790 $ 14,853 $ (13,135) $ 185,508 Segment Assets $ 1,616,224 $ 83,422 $ 959,869 $ 2,659,515 Depreciation, Depletion and Amortization $ 50,663 $ 1,181 $ 6,948 $ 58,792 Capital Expenditures $ 35,404 $ 2,630 $ 3,633 $ 41,667 Reportable segment results for the three months ended September 30, 2022 are: PAMC CONSOL Marine Terminal Other, Corporate and Eliminations Consolidated Coal Revenue $ 465,643 $ — $ 6,915 $ 472,558 Terminal Revenue — 14,840 — 14,840 Freight Revenue 42,618 — 1 42,619 Total Revenue from Contracts with Customers $ 508,261 $ 14,840 $ 6,916 $ 530,017 Adjusted EBITDA $ 179,516 $ 8,328 $ (6,963) $ 180,881 Segment Assets $ 1,782,514 $ 80,534 $ 859,228 $ 2,722,276 Depreciation, Depletion and Amortization $ 49,316 $ 1,149 $ 4,308 $ 54,773 Capital Expenditures $ 50,112 $ 2,248 $ 6,035 $ 58,395 Reportable segment results for the nine months ended September 30, 2023 are: PAMC CONSOL Marine Terminal Other, Corporate and Eliminations Consolidated Coal Revenue $ 1,515,603 $ — $ 58,493 $ 1,574,096 Terminal Revenue — 80,755 — 80,755 Freight Revenue 206,725 — 10,710 217,435 Total Revenue from Contracts with Customers $ 1,722,328 $ 80,755 $ 69,203 $ 1,872,286 Adjusted EBITDA $ 784,819 $ 59,324 $ (36,385) $ 807,758 Segment Assets $ 1,616,224 $ 83,422 $ 959,869 $ 2,659,515 Depreciation, Depletion and Amortization $ 152,302 $ 3,513 $ 27,056 $ 182,871 Capital Expenditures $ 99,706 $ 4,329 $ 13,714 $ 117,749 Reportable segment results for the nine months ended September 30, 2022 are: PAMC CONSOL Marine Terminal Other, Corporate and Eliminations Consolidated Coal Revenue $ 1,457,595 $ — $ 24,073 $ 1,481,668 Terminal Revenue — 58,016 — 58,016 Freight Revenue 128,394 — 3,025 131,419 Total Revenue from Contracts with Customers $ 1,585,989 $ 58,016 $ 27,098 $ 1,671,103 Adjusted EBITDA $ 541,753 $ 37,882 $ (13,185) $ 566,450 Segment Assets $ 1,782,514 $ 80,534 $ 859,228 $ 2,722,276 Depreciation, Depletion and Amortization $ 149,737 $ 3,456 $ 15,414 $ 168,607 Capital Expenditures $ 84,763 $ 2,608 $ 47,085 $ 134,456
Schedule of Revenue by Major Customers by Reporting Segments	For the three and nine months ended September 30, 2023 and 2022, the Company's reportable segments had revenues from the following customers, each comprising over 10% of the Company's total sales: Three Months Ended Nine Months Ended 2023 2022 2023 2022 Customer A $ 72,335 * $ 207,746 * Customer B $ 69,322 * $ 220,726 * Customer C * $ 100,635 * $ 311,707 Customer D * $ 98,424 * $ 229,595 *Revenues from these customers during the periods presented were less than 10% of the Company's total sales.
Schedule of Adjusted EBITDA	Reconciliation of Segment Information to Consolidated Amounts: Three Months Ended September 30, 2023 PAMC CONSOL Marine Terminal Other Total Company Net Income (Loss) $ 132,442 $ 12,098 $ (43,815) $ 100,725 Income Tax Expense — — 21,032 21,032 Interest Expense — 1,524 5,121 6,645 Interest Income (723) — (3,301) (4,024) Depreciation, Depletion and Amortization 50,663 1,181 6,948 58,792 Stock-Based Compensation 1,408 50 218 1,676 Loss on Debt Extinguishment — — 662 662 Adjusted EBITDA $ 183,790 $ 14,853 $ (13,135) $ 185,508 Three Months Ended September 30, 2022 PAMC CONSOL Marine Terminal Other Total Company Net Income (Loss) $ 210,855 $ 5,602 $ (64,336) $ 152,121 Income Tax Expense — — 39,414 39,414 Interest Expense — 1,528 10,434 11,962 Interest Income (437) — (1,104) (1,541) Depreciation, Depletion and Amortization 49,316 1,149 4,308 54,773 Stock-Based Compensation 1,028 49 147 1,224 Loss on Debt Extinguishment — — 674 674 Equity Affiliate Adjustments — — 3,500 3,500 Fair Value Adjustment of Commodity Derivative Instruments (81,246) — — (81,246) Adjusted EBITDA $ 179,516 $ 8,328 $ (6,963) $ 180,881 Nine Months Ended September 30, 2023 PAMC CONSOL Marine Terminal Other Total Company Net Income (Loss) $ 627,053 $ 50,981 $ (179,209) $ 498,825 Income Tax Expense — — 100,199 100,199 Interest Expense — 4,576 19,503 24,079 Interest Income (1,644) — (7,758) (9,402) Depreciation, Depletion and Amortization 152,302 3,513 27,056 182,871 Stock-Based Compensation 7,108 254 1,099 8,461 Loss on Debt Extinguishment — — 2,725 2,725 Adjusted EBITDA $ 784,819 $ 59,324 $ (36,385) $ 807,758 Nine Months Ended September 30, 2022 PAMC CONSOL Marine Terminal Other Total Company Net Income (Loss) $ 372,408 $ 29,569 $ (128,015) $ 273,962 Income Tax Expense — — 59,115 59,115 Interest Expense 205 4,589 34,641 39,435 Interest Income (1,304) — (3,005) (4,309) Depreciation, Depletion and Amortization 149,737 3,456 15,414 168,607 Stock-Based Compensation 5,622 268 804 6,694 Loss on Debt Extinguishment — — 4,361 4,361 Equity Affiliate Adjustments — — 3,500 3,500 Fair Value Adjustment of Commodity Derivative Instruments 15,085 — — 15,085 Adjusted EBITDA $ 541,753 $ 37,882 $ (13,185) $ 566,450

Basis of Presentation - Schedul

Basis of Presentation - Schedule of Antidilutive Securities (Details) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount (in shares)	0	80	1,031	403
Restricted Stock Units (RSUs)
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount (in shares)	0	80	1,031	403
Performance Shares
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount (in shares)	0	0	0	0

Basis of Presentation - Sched_2

Basis of Presentation - Schedule of Basic and Dilutive Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2023	Sep. 30, 2022
Numerator:
Net Income	$ 100,725	$ 167,723	$ 230,377	$ 152,121	$ 126,291	$ (4,450)	$ 498,825	$ 273,962
Denominator:
Weighted-average shares of common stock outstanding	31,928,295			34,870,154			33,330,892	34,793,069
Effect of dilutive shares	464,394			906,437			479,628	900,513
Weighted-average diluted shares of common stock outstanding	32,392,689			35,776,591			33,810,520	35,693,582
Earnings per Share:
Basic (in dollars per share)	$ 3.15			$ 4.36			$ 14.97	$ 7.87
Diluted (in dollars per share)	$ 3.11			$ 4.25			$ 14.75	$ 7.68

Basis of Presentation - Narrati

Basis of Presentation - Narrative (Details)	Sep. 30, 2023 shares
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Preferred stock, shares authorized	500,000
Preferred stock, shares issued	0
Preferred stock, shares outstanding	0

Revenue From Contracts With C_3

Revenue From Contracts With Customers - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Disaggregation of Revenue [Line Items]
Total Revenue from Contracts with Customers	$ 540,666	$ 530,017	$ 1,872,286	$ 1,671,103
Coal
Disaggregation of Revenue [Line Items]
Total Revenue from Contracts with Customers	449,618	472,558	1,574,096	1,481,668
Power Generation
Disaggregation of Revenue [Line Items]
Total Revenue from Contracts with Customers	206,277	350,039	747,334	920,467
Industrial
Disaggregation of Revenue [Line Items]
Total Revenue from Contracts with Customers	180,785	55,833	590,196	327,288
Metallurgical
Disaggregation of Revenue [Line Items]
Total Revenue from Contracts with Customers	62,556	66,686	236,566	233,913
Terminal Revenue
Disaggregation of Revenue [Line Items]
Total Revenue from Contracts with Customers	22,676	14,840	80,755	58,016
Freight Revenue
Disaggregation of Revenue [Line Items]
Total Revenue from Contracts with Customers	68,372	42,619	217,435	131,419
Domestic \| Coal
Disaggregation of Revenue [Line Items]
Total Revenue from Contracts with Customers	180,219	238,687	517,039	676,837
Domestic \| Power Generation
Disaggregation of Revenue [Line Items]
Total Revenue from Contracts with Customers	169,143	231,274	476,598	658,630
Domestic \| Industrial
Disaggregation of Revenue [Line Items]
Total Revenue from Contracts with Customers	11,076	3,877	29,814	14,671
Domestic \| Metallurgical
Disaggregation of Revenue [Line Items]
Total Revenue from Contracts with Customers	0	3,536	10,627	3,536
Export \| Coal
Disaggregation of Revenue [Line Items]
Total Revenue from Contracts with Customers	269,399	233,871	1,057,057	804,831
Export \| Power Generation
Disaggregation of Revenue [Line Items]
Total Revenue from Contracts with Customers	37,134	118,765	270,736	261,837
Export \| Industrial
Disaggregation of Revenue [Line Items]
Total Revenue from Contracts with Customers	169,709	51,956	560,382	312,617
Export \| Metallurgical
Disaggregation of Revenue [Line Items]
Total Revenue from Contracts with Customers	$ 62,556	$ 63,150	$ 225,939	$ 230,377

Revenue From Contracts With C_4

Revenue From Contracts With Customers - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Coal
Disaggregation of Revenue [Line Items]
Capitalized contract cost, net	$ 0		$ 0		$ 0
Capitalized contract cost, amortization	0	$ 0	0	$ 0
Terminal Revenue
Disaggregation of Revenue [Line Items]
Capitalized contract cost, net	0		0		$ 0
Capitalized contract cost, amortization	0	0	0	0
Contract with customer, liability, revenue recognized	$ 0	$ 0	$ 0	$ 0

Components of Pension and Oth_3

Components of Pension and Other Post-employment Benefit (OPEB) Plans Net Periodic Benefit Costs - Components of Net Periodic Benefit (Credit) Cost (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Pension Benefits
Defined Contribution Plan Disclosure [Line Items]
Service Cost	$ 304	$ 301	$ 913	$ 905
Interest Cost	6,756	4,135	20,270	12,404
Expected Return on Plan Assets	(9,867)	(9,319)	(29,602)	(27,957)
Amortization of Prior Service Credits	0	0	0	0
Amortization of Actuarial Loss	185	759	555	2,278
Net Periodic Benefit (Credit) Cost	(2,622)	(4,124)	(7,864)	(12,370)
Other Post-Employment Benefits
Defined Contribution Plan Disclosure [Line Items]
Service Cost	0	0	0	0
Interest Cost	3,261	1,975	9,783	5,924
Expected Return on Plan Assets	0	0	0	0
Amortization of Prior Service Credits	(601)	(601)	(1,804)	(1,804)
Amortization of Actuarial Loss	0	878	0	2,636
Net Periodic Benefit (Credit) Cost	$ 2,660	$ 2,252	$ 7,979	$ 6,756

Components of Coal Workers' P_3

Components of Coal Workers' Pneumoconiosis (CWP) and Workers' Compensation Net Periodic Benefit Costs - Components of Net Period Benefit Costs (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
CWP
Defined Contribution Plan Disclosure [Line Items]
Service Cost	$ 578	$ 727	$ 1,734	$ 2,179
Interest Cost	2,071	1,265	6,214	3,795
Amortization of Actuarial Loss	(261)	1,059	(784)	3,178
State Administrative Fees and Insurance Bond Premiums	0	0	0	0
Net Periodic Benefit (Credit) Cost	2,388	3,051	7,164	9,152
Workers' Compensation
Defined Contribution Plan Disclosure [Line Items]
Service Cost	1,400	1,230	4,198	3,690
Interest Cost	628	343	1,885	1,027
Amortization of Actuarial Loss	(512)	(106)	(1,537)	(316)
State Administrative Fees and Insurance Bond Premiums	471	449	1,482	1,334
Net Periodic Benefit (Credit) Cost	$ 1,987	$ 1,916	$ 6,028	$ 5,735

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
Income Taxes (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Income Tax Disclosure [Abstract]
Income Tax Expense	$ 21,032	$ 39,414	$ 100,199	$ 59,115
Effective income tax rate reconciliation, percent	173%	20.60%	16.70%	178%
Effective income tax rate reconciliation, at federal statutory income tax rate, percent			21%	21%

Cash and Cash Equivalents and_3

Cash and Cash Equivalents and Short-Term Investments - Narrative (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Investments, Debt and Equity Securities [Abstract]
Purchases of short-term investments	$ 162,422	$ 0

Cash and Cash Equivalents and_4

Cash and Cash Equivalents and Short-Term Investments - Cash, Cash Equivalents and Short-Term Investments (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022	Sep. 30, 2022	Dec. 31, 2021
Investments, Debt and Equity Securities [Abstract]
Cash and Cash Equivalents	$ 167,586	$ 273,070	$ 268,853
Restricted Cash - Current	46,313		45,941
Restricted Cash - Non-current	2,095		5,854
Cash and Cash Equivalents and Restricted Cash	$ 215,994	$ 326,952	$ 320,648	$ 198,206

Cash and Cash Equivalents and_5

Cash and Cash Equivalents and Short-Term Investments - Investments in Available-for-Sale Securities (Details) - U.S. Treasury Securities $ in Thousands	Sep. 30, 2023 USD ($)
Schedule of Held-to-Maturity Securities [Line Items]
Amortized Cost	$ 81,073
Allowance for Credit Losses	0
Gains	0
Losses	(64)
Fair Value	$ 81,009

Credit Losses - Allowance for C

Credit Losses - Allowance for Credit Losses by Portfolio (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2023 USD ($)
Trade Receivables
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	$ 1,731
Provision for expected credit losses	(1,276)
Write-off of uncollectible accounts	0
Ending Balance	455
Other Non-Trade Contractual Arrangements
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	7,051
Provision for expected credit losses	(124)
Write-off of uncollectible accounts	(45)
Ending Balance	$ 6,882

Inventories (Details)

Inventories (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Inventory Disclosure [Abstract]
Coal	$ 29,127	$ 11,315
Supplies	69,259	54,975
Total Inventories	$ 98,386	$ 66,290

Accounts Receivable Securitiz_2

Accounts Receivable Securitization (Details) - USD ($)	3 Months Ended		9 Months Ended
Accounts Receivable Securitization (Details) - USD ($)	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Payments of financing costs			$ 2,810,000	$ 7,766,000
Line of Credit \| Accounts Receivable Securitization Facility
Accounts, Notes, Loans and Financing Receivable [Line Items]
Line of credit facility, maximum borrowing capacity	$ 100,000,000		$ 100,000,000
Line of credit facility, unused capacity, commitment fee percentage			6%
Accounts receivable eligible for securitization	42,049,000		$ 42,049,000		$ 85,179,000
Line of credit facility, fair value of amount outstanding	0		0		0
Letters of credit outstanding, amount	42,007,000		42,007,000		83,465,000
Line of credit facility, remaining borrowing capacity	42,000		42,000		$ 1,714,000
Payments of financing costs	$ 323,000	$ 198,000	$ 1,060,000	$ 813,000
Line of Credit \| Accounts Receivable Securitization Facility \| Minimum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Line of credit facility, commitment fee percentage			200%
Line of Credit \| Accounts Receivable Securitization Facility \| Maximum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Line of credit facility, commitment fee percentage			25%

Property, Plant and Equipment -

Property, Plant and Equipment - Schedule of Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Total Property, Plant and Equipment	$ 5,520,656	$ 5,408,577
Less: Accumulated Depreciation, Depletion and Amortization	3,603,830	3,448,495
Total Property, Plant and Equipment - Net	1,916,826	1,960,082
Plant and Equipment
Property, Plant and Equipment [Line Items]
Total Property, Plant and Equipment	3,429,950	3,330,755
Coal Properties and Surface Lands
Property, Plant and Equipment [Line Items]
Total Property, Plant and Equipment	904,992	898,628
Airshafts
Property, Plant and Equipment [Line Items]
Total Property, Plant and Equipment	487,506	481,090
Mine Development
Property, Plant and Equipment [Line Items]
Total Property, Plant and Equipment	366,260	366,241
Advance Mining Royalties
Property, Plant and Equipment [Line Items]
Total Property, Plant and Equipment	$ 331,948	$ 331,863

Property, Plant and Equipment_2

Property, Plant and Equipment - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Property, Plant and Equipment [Abstract]
Finance lease, right-of-use asset, before accumulated amortization	$ 74,507		$ 74,507		$ 90,516
Finance lease, right-of-use asset, accumulated amortization	57,225		57,225		$ 54,028
Finance lease, right-of-use asset, amortization	$ 6,524	$ 5,960	$ 20,369	$ 18,058

Other Accrued Liabilities (Deta

Other Accrued Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Other Liabilities Disclosure [Abstract]
Subsidence Liability	$ 104,265	$ 96,623
Accrued Compensation and Benefits	72,754	67,893
Accrued Income Taxes	17,229	1,513
Accrued Other Taxes	7,865	10,551
Accrued Interest	3,212	7,942
Other	19,115	9,880
Current Portion of Long-Term Liabilities:
Asset Retirement Obligations	32,974	29,644
Postretirement Benefits Other than Pensions	21,697	22,436
Pneumoconiosis Benefits	12,571	12,723
Workers' Compensation	9,615	10,451
Total Other Accrued Liabilities	$ 301,297	$ 269,656

Long-Term Debt - Schedule of Lo

Long-Term Debt - Schedule of Long-term Debt Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022	Apr. 30, 2021	Nov. 30, 2017
Debt Instrument [Line Items]
Less: Unamortized Debt Issuance Costs	$ (1,804)	$ (3,721)
Principal amount	185,448	346,851
Less: amounts due in one year	(2,027)	(4,741)
Long-Term Debt	183,421	342,110
MEDCO Revenue Bonds in Series Due September 2025 at 5.75%
Debt Instrument [Line Items]
Long-term debt, gross	$ 102,865	$ 102,865
Stated interest rate percentage	5.75%	5.75%
PEDFA Solid Waste Disposal Revenue Bonds
Debt Instrument [Line Items]
Long-term debt, gross	$ 75,000	$ 75,000
Stated interest rate percentage	9%	9%	900%
Other Asset Backed Financing
Debt Instrument [Line Items]
Long-term debt, gross	$ 1,671	$ 2,400
Advance Royalty Commitments
Debt Instrument [Line Items]
Long-term debt, gross	$ 7,716	$ 7,716
Weighted average interest rate	8.09%	8.09%
Senior Notes \| Senior Secured Second Lien Notes due 2025
Debt Instrument [Line Items]
Long-term debt, gross	$ 0	$ 99,107
Stated interest rate percentage	11%	11%		11%
Loans Payable \| Revolving Credit Facility
Debt Instrument [Line Items]
Finance lease, liability, current	$ 13,596	$ 24,105
Loans Payable \| Term Loan B Facility
Debt Instrument [Line Items]
Long-term debt, gross	$ 0	63,484
Less: Unamortized Debt Issuance Costs		(106)
Principal amount		$ 63,590
Weighted average interest rate		8.92%

Long-Term Debt - Narrative (Det

Long-Term Debt - Narrative (Details) T in Billions	1 Months Ended	3 Months Ended						9 Months Ended
Long-Term Debt - Narrative (Details) T in Billions	Apr. 30, 2021 USD ($)	Sep. 30, 2023 USD ($)	Jun. 30, 2023 USD ($)	Mar. 31, 2023 USD ($)	Sep. 30, 2022 USD ($)	Jun. 30, 2022 USD ($)	Mar. 31, 2022 USD ($)	Sep. 30, 2023 USD ($) T	Sep. 30, 2022 USD ($)	Mar. 28, 2023 USD ($)	Dec. 31, 2022 USD ($)	Nov. 30, 2017 USD ($)
Debt Instrument [Line Items]
Number of tons \| T								1.4
Assets		$ 2,659,515,000			$ 2,722,276,000			$ 2,659,515,000	$ 2,722,276,000		$ 2,704,377,000
Net Income		100,725,000	$ 167,723,000	$ 230,377,000	152,121,000	$ 126,291,000	$ (4,450,000)	498,825,000	273,962,000
Gain (loss) on extinguishment of debt		$ 662,000			674,000			2,725,000	4,361,000
Senior Secured Second Lien Notes due 2025
Debt Instrument [Line Items]
Repayments of debt								$ 101,832,000	26,387,000
PEDFA Solid Waste Disposal Revenue Bonds
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	900%	9%						9%			9%
Debt instrument, face amount	$ 75,000,000,000
Debt instrument, term	7 years
Proceeds from issuance of debt	$ 75,000,000
Restricted cash		$ 20,320,000						$ 20,320,000			$ 35,516,000
PEDFA Solid Waste Disposal Revenue Bonds Due April 2028 \| Restricted Cash
Debt Instrument [Line Items]
Payment of capital construction project, qualified costs		8,442,000			2,376,000			16,313,000	7,100,000
Non-Guarantor Subsidiaries
Debt Instrument [Line Items]
Assets		148,200,000						148,200,000			158,877,000
Accounts receivable, after allowance for credit loss		147,664,000						147,664,000			$ 158,127,000
Net Income		$ 235,000			6,400,000			$ 4,843,000	10,492,000
Senior Notes \| Senior Secured Second Lien Notes due 2025
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage		11%						11%			11%	11%
Repayments of debt								$ 101,832,000	26,387,000
Debt instrument, repurchased face amount		$ 99,107,000			$ 25,000,000			99,107,000	$ 25,000,000
Revolving Credit Facility
Debt Instrument [Line Items]
Long-term line of credit		0						0			$ 0
Revolving Credit Facility \| Line of Credit
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity			355,000,000							$ 260,000,000		$ 300,000,000
Line of credit facility, maximum borrowing capacity, option to increase, maximum increase amount			45,000,000
Line of credit facility, maximum borrowing capacity, option to increase, maximum amount			$ 400,000,000
Letters of credit outstanding, amount		139,195,000						139,195,000			103,029,000
Line of credit facility, remaining borrowing capacity		$ 215,805,000						$ 215,805,000			$ 296,971,000
Revolving Credit Facility and TLA Facility \| Line of Credit
Debt Instrument [Line Items]
Debt instrument, covenant, net leverage ratio, maximum					2.50				2.50
Debt instrument, covenant, fixed charge coverage ratio, minimum					1.10				1.10
Debt instrument, covenant, first lien gross leverage ratio, actual		0.02						0.02
Debt instrument, covenant, net leverage ratio, actual		(0.05)						(0.05)
Debt instrument, covenant, fixed charge coverage ratio, actual		3.53						3.53
Revolving Credit Facility and TLA Facility \| Line of Credit \| Maximum
Debt Instrument [Line Items]
Debt instrument, covenant, first lien gross leverage ratio					1.50				1.50

Commitments and Contingent Li_3

Commitments and Contingent Liabilities - Narrative (Details) $ in Millions		9 Months Ended
	Aug. 23, 2017 plaintiff	Sep. 30, 2023 USD ($) plaintiff
Fitzwater Litigation
Loss Contingencies [Line Items]
Number of plaintiffs \| plaintiff		3
Casey Litigation \| Pending Litigation
Loss Contingencies [Line Items]
Number of plaintiffs \| plaintiff	2
United Mine Workers of America 1992 Benefit Plan Litigation \| Pending Litigation \| Minimum
Loss Contingencies [Line Items]
Annual servicing costs \| $		$ 10
United Mine Workers of America 1992 Benefit Plan Litigation \| Pending Litigation \| Maximum
Loss Contingencies [Line Items]
Annual servicing costs \| $		$ 20

Commitments and Contingent Li_4

Commitments and Contingent Liabilities - Guarantor Obligations (Details) $ in Thousands	Sep. 30, 2023 USD ($)
Letters of Credit:
Loss Contingencies [Line Items]
Total Amounts Committed	$ 181,202
Less Than 1 Year	148,002
1-3 Years	33,200
3-5 Years	0
Beyond 5 Years	0
Letters of Credit: \| Employee-Related
Loss Contingencies [Line Items]
Total Amounts Committed	48,034
Less Than 1 Year	29,649
1-3 Years	18,385
3-5 Years	0
Beyond 5 Years	0
Letters of Credit: \| Environmental
Loss Contingencies [Line Items]
Total Amounts Committed	398
Less Than 1 Year	398
1-3 Years	0
3-5 Years	0
Beyond 5 Years	0
Letters of Credit: \| Other
Loss Contingencies [Line Items]
Total Amounts Committed	132,770
Less Than 1 Year	117,955
1-3 Years	14,815
3-5 Years	0
Beyond 5 Years	0
Surety Bonds:
Loss Contingencies [Line Items]
Total Amounts Committed	606,857
Less Than 1 Year	552,314
1-3 Years	54,543
3-5 Years	0
Beyond 5 Years	0
Surety Bonds: \| Employee-Related
Loss Contingencies [Line Items]
Total Amounts Committed	81,010
Less Than 1 Year	47,760
1-3 Years	33,250
3-5 Years	0
Beyond 5 Years	0
Surety Bonds: \| Environmental
Loss Contingencies [Line Items]
Total Amounts Committed	521,999
Less Than 1 Year	500,911
1-3 Years	21,088
3-5 Years	0
Beyond 5 Years	0
Surety Bonds: \| Other
Loss Contingencies [Line Items]
Total Amounts Committed	3,848
Less Than 1 Year	3,643
1-3 Years	205
3-5 Years	0
Beyond 5 Years	$ 0

Derivatives - Narrative (Detail

Derivatives - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Derivatives - Narrative (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Sep. 30, 2022
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized gain (loss) on derivatives and commodity contracts	$ (81,246)	$ 15,085
Coal Contract
Derivative Instruments, Gain (Loss) [Line Items]
Realized gain (loss), investment and derivative	(81,311)	(241,486)
Unrealized gain (loss) on derivatives and commodity contracts	$ (81,246)	$ 15,085

Derivatives - Schedule of Deriv

Derivatives - Schedule of Derivative Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Asset Derivatives
Effect of Counterparty Netting	$ 0	$ (6,024)
Net Derivatives as Classified in the Consolidated Balance Sheets	0	0
Liability Derivatives
Effect of Counterparty Netting	0	6,024
Net Derivatives as Classified in the Consolidated Balance Sheets	0	(15,142)
Coal Contract
Asset Derivatives
Coal Swap Contracts	0	6,024
Liability Derivatives
Coal Swap Contracts	$ 0	$ (21,166)

Fair Value of Financial instr_3

Fair Value of Financial instruments - Schedule of Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
U.S. Treasury Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	$ 81,009
Fair Value, Recurring \| Level 1 \| U.S. Treasury Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	81,009	$ 0
Fair Value, Recurring \| Level 1 \| Commodity Derivatives
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net derivative liabilities	0	0
Fair Value, Recurring \| Level 2 \| U.S. Treasury Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	0	0
Fair Value, Recurring \| Level 2 \| Commodity Derivatives
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net derivative liabilities	0	(15,142)
Fair Value, Recurring \| Level 3 \| U.S. Treasury Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	0	0
Fair Value, Recurring \| Level 3 \| Commodity Derivatives
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net derivative liabilities	$ 0	$ 0

Fair Value of Financial instr_4

Fair Value of Financial instruments - Schedule of Carrying Values and Estimated Fair Values of Debt Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Carrying Amount
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-Term Debt (Excluding Debt Issuance Costs)	$ 187,252	$ 350,572
Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-Term Debt (Excluding Debt Issuance Costs)	$ 201,767	$ 365,789

Segment Information - Narrative

Segment Information - Narrative (Details)	9 Months Ended
Segment Information - Narrative (Details)	Sep. 30, 2023 segment
Segment Reporting [Abstract]
Number of reportable segments	2

Segment Information - Schedule

Segment Information - Schedule of Segment Reporting Information by Segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Segment Reporting Information [Line Items]
Total Revenue from Contracts with Customers	$ 540,666	$ 530,017	$ 1,872,286	$ 1,671,103
Adjusted EBITDA	185,508	180,881	807,758	566,450
Segment Assets	2,659,515	2,722,276	2,659,515	2,722,276	$ 2,704,377
Depreciation, Depletion and Amortization	58,792	54,773	182,871	168,607
Capital Expenditures	41,667	58,395	117,749	134,456
Coal Revenue
Segment Reporting Information [Line Items]
Total Revenue from Contracts with Customers	449,618	472,558	1,574,096	1,481,668
Terminal Revenue
Segment Reporting Information [Line Items]
Total Revenue from Contracts with Customers	22,676	14,840	80,755	58,016
Freight Revenue
Segment Reporting Information [Line Items]
Total Revenue from Contracts with Customers	68,372	42,619	217,435	131,419
Other, Corporate and Eliminations
Segment Reporting Information [Line Items]
Total Revenue from Contracts with Customers	22,393	6,916	69,203	27,098
Adjusted EBITDA	(13,135)	(6,963)	(36,385)	(13,185)
Segment Assets	959,869	859,228	959,869	859,228
Depreciation, Depletion and Amortization	6,948	4,308	27,056	15,414
Capital Expenditures	3,633	6,035	13,714	47,085
Other, Corporate and Eliminations \| Coal Revenue
Segment Reporting Information [Line Items]
Total Revenue from Contracts with Customers	18,528	6,915	58,493	24,073
Other, Corporate and Eliminations \| Terminal Revenue
Segment Reporting Information [Line Items]
Total Revenue from Contracts with Customers	0	0	0	0
Other, Corporate and Eliminations \| Freight Revenue
Segment Reporting Information [Line Items]
Total Revenue from Contracts with Customers	3,865	1	10,710	3,025
PAMC \| Operating Segments
Segment Reporting Information [Line Items]
Total Revenue from Contracts with Customers	495,597	508,261	1,722,328	1,585,989
Adjusted EBITDA	183,790	179,516	784,819	541,753
Segment Assets	1,616,224	1,782,514	1,616,224	1,782,514
Depreciation, Depletion and Amortization	50,663	49,316	152,302	149,737
Capital Expenditures	35,404	50,112	99,706	84,763
PAMC \| Operating Segments \| Coal Revenue
Segment Reporting Information [Line Items]
Total Revenue from Contracts with Customers	431,090	465,643	1,515,603	1,457,595
PAMC \| Operating Segments \| Terminal Revenue
Segment Reporting Information [Line Items]
Total Revenue from Contracts with Customers	0	0	0	0
PAMC \| Operating Segments \| Freight Revenue
Segment Reporting Information [Line Items]
Total Revenue from Contracts with Customers	64,507	42,618	206,725	128,394
CONSOL Marine Terminal \| Operating Segments
Segment Reporting Information [Line Items]
Total Revenue from Contracts with Customers	22,676	14,840	80,755	58,016
Adjusted EBITDA	14,853	8,328	59,324	37,882
Segment Assets	83,422	80,534	83,422	80,534
Depreciation, Depletion and Amortization	1,181	1,149	3,513	3,456
Capital Expenditures	2,630	2,248	4,329	2,608
CONSOL Marine Terminal \| Operating Segments \| Coal Revenue
Segment Reporting Information [Line Items]
Total Revenue from Contracts with Customers	0	0	0	0
CONSOL Marine Terminal \| Operating Segments \| Terminal Revenue
Segment Reporting Information [Line Items]
Total Revenue from Contracts with Customers	22,676	14,840	80,755	58,016
CONSOL Marine Terminal \| Operating Segments \| Freight Revenue
Segment Reporting Information [Line Items]
Total Revenue from Contracts with Customers	$ 0	$ 0	$ 0	$ 0

Segment Information - Schedul_2

Segment Information - Schedule of Revenue by Major Customers by Reporting Segments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Segment Reporting Information [Line Items]
Total Revenue from Contracts with Customers	$ 540,666	$ 530,017	$ 1,872,286	$ 1,671,103
Revenue Benchmark \| Customer Concentration Risk \| Customer A
Segment Reporting Information [Line Items]
Total Revenue from Contracts with Customers	72,335		207,746
Revenue Benchmark \| Customer Concentration Risk \| Customer B
Segment Reporting Information [Line Items]
Total Revenue from Contracts with Customers	$ 69,322		$ 220,726
Revenue Benchmark \| Customer Concentration Risk \| Customer C
Segment Reporting Information [Line Items]
Total Revenue from Contracts with Customers		100,635		311,707
Revenue Benchmark \| Customer Concentration Risk \| Customer D
Segment Reporting Information [Line Items]
Total Revenue from Contracts with Customers		$ 98,424		$ 229,595

Segment Information - Schedul_3

Segment Information - Schedule of Adjusted EBITDA (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Segment Reporting Information [Line Items]
Net Income (Loss)	$ 100,725	$ 152,121	$ 498,825	$ 273,962
Income Tax Expense	21,032	39,414	100,199	59,115
Interest Expense	6,645	11,962	24,079	39,435
Interest Income	(4,024)	(1,541)	(9,402)	(4,309)
Depreciation, Depletion and Amortization	58,792	54,773	182,871	168,607
Stock-Based Compensation	1,676	1,224	8,461	6,694
Loss on Debt Extinguishment	662	674	2,725	4,361
Equity Affiliate Adjustments		3,500	3,500
Fair Value Adjustment of Commodity Derivative Instruments		(81,246)		15,085
Adjusted EBITDA	185,508	180,881	807,758	566,450
Other, Corporate and Eliminations
Segment Reporting Information [Line Items]
Net Income (Loss)	(43,815)	(64,336)	(179,209)	(128,015)
Income Tax Expense	21,032	39,414	100,199	59,115
Interest Expense	5,121	10,434	19,503	34,641
Interest Income	(3,301)	(1,104)	(7,758)	(3,005)
Depreciation, Depletion and Amortization	6,948	4,308	27,056	15,414
Stock-Based Compensation	218	147	1,099	804
Loss on Debt Extinguishment	662	674	2,725	4,361
Equity Affiliate Adjustments		3,500	3,500
Fair Value Adjustment of Commodity Derivative Instruments		0		0
Adjusted EBITDA	(13,135)	(6,963)	(36,385)	(13,185)
PAMC \| Operating Segments
Segment Reporting Information [Line Items]
Net Income (Loss)	132,442	210,855	627,053	372,408
Income Tax Expense	0	0	0	0
Interest Expense	0	0	0	205
Interest Income	(723)	(437)	(1,644)	(1,304)
Depreciation, Depletion and Amortization	50,663	49,316	152,302	149,737
Stock-Based Compensation	1,408	1,028	7,108	5,622
Loss on Debt Extinguishment	0	0	0	0
Equity Affiliate Adjustments		0	0
Fair Value Adjustment of Commodity Derivative Instruments		(81,246)		15,085
Adjusted EBITDA	183,790	179,516	784,819	541,753
CONSOL Marine Terminal \| Operating Segments
Segment Reporting Information [Line Items]
Net Income (Loss)	12,098	5,602	50,981	29,569
Income Tax Expense	0	0	0	0
Interest Expense	1,524	1,528	4,576	4,589
Interest Income	0	0	0	0
Depreciation, Depletion and Amortization	1,181	1,149	3,513	3,456
Stock-Based Compensation	50	49	254	268
Loss on Debt Extinguishment	0	0	0	0
Equity Affiliate Adjustments		0	0
Fair Value Adjustment of Commodity Derivative Instruments		0		0
Adjusted EBITDA	$ 14,853	$ 8,328	$ 59,324	$ 37,882

Stock and Debt Repurchases - Na

Stock and Debt Repurchases - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2023	Sep. 30, 2022	Apr. 30, 2023	Dec. 31, 2022	Nov. 30, 2017
Class of Stock [Line Items]
Aggregate authorized amount						$ 1,000,000
Stock repurchased and retired during period, shares	1,547,846	1,225,134	1,207,409	3,980,389
Treasury stock acquired, average cost per share (in dollars per share)				$ 67.68
Stock repurchased during period (in shares)					0
Senior Secured Second Lien Notes due 2025
Class of Stock [Line Items]
Repayments of debt				$ 101,832	$ 26,387
Senior Notes \| Senior Secured Second Lien Notes due 2025
Class of Stock [Line Items]
Debt instrument, interest rate, stated percentage	11%			11%			11%	11%
Repayments of debt				$ 101,832	26,387
Debt instrument, repurchased face amount	$ 99,107			$ 99,107	$ 25,000