Core Natural Resources (CNR) 10-Q 8 Aug 24 2024 Q2 Quarterly report Financial data

Cover Page

Cover Page - shares	6 Months Ended
	Jun. 30, 2024	Jul. 26, 2024
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2024
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		29,393,226
Entity Central Index Key	0001710366
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2024

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Total Revenue and Other Income	$ 501,123	$ 660,967	$ 1,066,165	$ 1,349,574
Costs and Expenses:
Operating and Other Costs	287,670	276,596	581,100	537,223
Depreciation, Depletion and Amortization	54,847	64,528	111,844	124,079
Freight Expense	65,640	81,556	135,482	149,063
General and Administrative Costs	20,885	25,147	41,518	42,445
Loss on Debt Extinguishment	0	688	0	2,063
Interest Expense	4,993	7,155	10,399	17,434
Total Costs and Expenses	434,035	455,670	880,343	872,307
Earnings Before Income Tax	67,088	205,297	185,822	477,267
Income Tax Expense	9,027	37,574	25,870	79,167
Net Income	$ 58,061	$ 167,723	$ 159,952	$ 398,100
Earnings per Share:
Total Basic Earnings per Share (in dollars per share)	$ 1.96	$ 5	$ 5.37	$ 11.69
Total Dilutive Earnings per Share (in dollars per share)	1.96	4.94	5.35	11.53
Dividends declared per common share (in dollars per share)	$ 0	$ 1.10	$ 0	$ 2.20
Coal Revenue
Total Revenue and Other Income	$ 409,322	$ 541,099	$ 857,249	$ 1,124,478
Terminal Revenue
Total Revenue and Other Income	12,020	31,368	36,548	58,079
Freight Revenue
Total Revenue and Other Income	65,640	81,556	135,482	149,063
Miscellaneous Other Income
Total Revenue and Other Income	13,434	6,934	30,102	12,218
Gain on Sale of Assets
Total Revenue and Other Income	$ 707	$ 10	$ 6,784	$ 5,736

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Net Income	$ 58,061	$ 167,723	$ 159,952	$ 398,100
Other Comprehensive Income (Loss):
Actuarially Determined Long-Term Liability Adjustments (Net of tax: ($110), $274, ($221), $548)	(385)	900	(770)	1,801
Unrealized Loss on Investments in Available-for-Sale Securities (Net of tax: $5, $77, $41, $13)	(17)	(255)	(143)	(43)
Other Comprehensive Income (Loss)	368	(1,155)	627	(1,844)
Comprehensive Income	$ 58,429	$ 166,568	$ 160,579	$ 396,256

Consolidated Statements of Co_2

Consolidated Statements of Comprehensive Income (Parentheticals) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Actuarially determined long-term liability adjustment, tax	$ (110)	$ 274	$ (221)	$ 548
Unrealized (loss) gain on investments available-for-sale securities tax expense (benefit)	$ 5	$ 77	$ 41	$ 13

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Current Assets:
Cash and Cash Equivalents	$ 216,115	$ 199,371
Short-Term Investments	83,344	81,932
Accounts and Notes Receivable
Trade Receivables, net	143,928	147,612
Other Receivables, net	15,653	12,765
Inventories	97,507	88,154
Other Current Assets	64,665	71,172
Total Current Assets	621,212	601,006
Property, Plant and Equipment:
Property, Plant and Equipment	5,655,655	5,552,404
Less - Accumulated Depreciation, Depletion and Amortization	3,744,633	3,649,281
Total Property, Plant and Equipment—Net	1,911,022	1,903,123
Other Assets:
Right of Use Asset - Operating Leases	14,119	14,658
Salary Retirement	50,371	47,246
Other Noncurrent Assets, net	113,730	108,970
Total Other Assets	178,220	170,874
TOTAL ASSETS	2,710,454	2,675,003
Current Liabilities:
Accounts Payable	136,848	137,243
Current Portion of Long-Term Debt	6,012	11,106
Operating Lease Liability, Current Portion	4,167	4,769
Other Accrued Liabilities	253,061	290,606
Total Current Liabilities	400,088	443,724
Long-Term Debt:
Long-Term Debt	182,009	181,885
Finance Lease Obligations	2,922	4,182
Total Long-Term Debt	184,931	186,067
Deferred Credits and Other Liabilities:
Postretirement Benefits Other Than Pensions	205,060	207,908
Pneumoconiosis Benefits	152,324	154,943
Asset Retirement Obligations	212,866	212,621
Workers’ Compensation	38,413	39,144
Salary Retirement	20,720	20,808
Operating Lease Liability	10,486	10,385
Deferred Income Taxes	36,399	36,219
Other Noncurrent Liabilities	10,764	19,742
Total Deferred Credits and Other Liabilities	687,032	701,770
TOTAL LIABILITIES	1,272,051	1,331,561
Stockholders' Equity:
Common Stock, $0.01 Par Value; 62,500,000 Shares Authorized, 29,392,987 Shares Issued and Outstanding at June 30, 2024; 29,910,439 Shares Issued and Outstanding at December 31, 2023	294	299
Capital in Excess of Par Value	535,965	547,861
Retained Earnings	1,050,577	944,342
Accumulated Other Comprehensive Loss	(148,433)	(149,060)
TOTAL EQUITY	1,438,403	1,343,442
TOTAL LIABILITIES AND EQUITY	$ 2,710,454	$ 2,675,003

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - $ / shares	Jun. 30, 2024	Dec. 31, 2023
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	29,392,987	29,910,439
Common stock, shares, outstanding	29,392,987	29,910,439

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, 2022	$ 1,165,826	$ 347	$ 646,237	$ 668,882	$ (149,640)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	230,377			230,377
Actuarially determined long-term liability adjustments	(901)				(901)
Interest Rate Hedge, net	212				212
Comprehensive Income	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)
Employee Stock-Based Compensation	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	398,100
Actuarially determined long-term liability adjustments	(1,801)
Investments in available-for-sale securities	(43)
Comprehensive Income	396,256
Ending balance at Jun. 30, 2023	1,335,195	327	595,566	890,786	(151,484)
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	167,723			167,723
Actuarially determined long-term liability adjustments	(900)				(900)
Interest Rate Hedge, net	(255)				(255)
Investments in available-for-sale securities	(255)
Comprehensive Income	166,568			167,723	(1,155)
Issuance of Common Stock	(75,627)	(12)	(22,261)
Repurchases of common stock				(53,354)
Excise Tax on Repurchases of Common Stock	(728)			(728)
Employee Stock-Based Compensation	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)
Beginning balance at Dec. 31, 2023	1,343,442	299	547,861	944,342	(149,060)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	101,891			101,891
Actuarially determined long-term liability adjustments	385				385
Investments in available-for-sale securities	(126)				(126)
Comprehensive Income	102,150			101,891	259
Issuance of Common Stock	0	1	(1)
Repurchases of common stock	(55,881)	(6)	(11,264)	(44,611)
Excise Tax on Repurchases of Common Stock	(471)			(471)
Employee Stock-Based Compensation	5,129		5,118	11
Shares Withheld for Taxes	(5,551)		(5,551)
Ending balance at Mar. 31, 2024	1,388,818	294	536,163	1,001,162	(148,801)
Beginning balance at Dec. 31, 2023	1,343,442	299	547,861	944,342	(149,060)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	159,952
Actuarially determined long-term liability adjustments	770
Investments in available-for-sale securities	(143)
Comprehensive Income	160,579
Ending balance at Jun. 30, 2024	1,438,403	294	535,965	1,050,577	(148,433)
Beginning balance at Mar. 31, 2024	1,388,818	294	536,163	1,001,162	(148,801)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	58,061			58,061
Actuarially determined long-term liability adjustments	385				385
Investments in available-for-sale securities	(17)				(17)
Comprehensive Income	58,429			58,061	368
Issuance of Common Stock	0	1	(1)
Repurchases of common stock	(10,997)	(1)	(2,407)	(8,589)
Excise Tax on Repurchases of Common Stock	(82)			(82)
Employee Stock-Based Compensation	2,262		2,237	25
Shares Withheld for Taxes	(27)		(27)
Ending balance at Jun. 30, 2024	$ 1,438,403	$ 294	$ 535,965	$ 1,050,577	$ (148,433)

Consolidated Statements of St_2

Consolidated Statements of Stockholders' Equity (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023
Statement of Stockholders' Equity [Abstract]
Actuarially determined long-term liability adjustments, tax	$ (110)	$ (111)	$ 274	$ 274
Investments in available-for-sale securities, tax	$ 5	$ 36	77	$ (64)
Interest rate hedge, tax			$ 77
Repurchases of common stock (in shares)	132,063	615,288	1,225,134	1,207,409
Dividends declared per common share (in dollars per share)	$ 0		$ 1.10	$ 1.10

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Cash Flows from Operating Activities:
Net Income	$ 159,952	$ 398,100
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
Depreciation, Depletion and Amortization	111,844	124,079
Gain on Sale of Assets	(6,784)	(5,736)
Stock-Based Compensation	7,355	6,785
Amortization of Debt Issuance Costs	1,878	3,389
Loss on Debt Extinguishment	0	2,063
Deferred Income Taxes	180	(561)
Other Adjustments to Net Income	(1,521)	(1,413)
Changes in Operating Assets:
Accounts and Notes Receivable	809	72,470
Inventories	(9,353)	(31,385)
Other Current Assets	3,321	1,773
Changes in Other Assets	(2,070)	(25,654)
Changes in Operating Liabilities:
Accounts Payable	426	(14,810)
Commodity Derivatives, net Liability	0	(15,142)
Other Operating Liabilities	(37,801)	(3,868)
Changes in Other Liabilities	(34,488)	(34,006)
Net Cash Provided by Operating Activities	193,748	476,084
Cash Flows from Investing Activities:
Capital Expenditures	(97,760)	(76,082)
Proceeds from Sales of Assets	6,948	6,239
Investments in Mining-Related Activities	(3,048)	(4,731)
Proceeds from Sales of Short-Term Investments	20,543	30,419
Purchases of Short-Term Investments	(20,084)	(129,757)
Other Investing Activity	(2,100)	0
Net Cash Used in Investing Activities	(95,501)	(173,912)
Cash Flows from Financing Activities:
Payments on Finance Lease Obligations	(6,424)	(13,898)
Payments on Other Debt	(710)	(480)
Shares Withheld for Taxes	(5,578)	(12,746)
Repurchases of Common Stock	(70,879)	(140,519)
Debt-Related Financing Fees	0	(2,684)
Dividends and Dividend Equivalents Paid	(1,098)	(75,474)
Net Cash Used in Financing Activities	(84,689)	(386,454)
Net Increase (Decrease) in Cash and Cash Equivalents and Restricted Cash	13,558	(84,282)
Cash and Cash Equivalents and Restricted Cash at Beginning of Period	243,268	326,952
Cash and Cash Equivalents and Restricted Cash at End of Period	256,826	242,670
Non-Cash Investing and Financing Activities:
Finance Lease	364	588
Term Loan B Facility
Cash Flows from Financing Activities:
Payments on debt	0	(63,590)
Senior Secured Second Lien Notes due 2025
Cash Flows from Financing Activities:
Payments on debt	$ 0	$ (77,063)

Basis of Presentation

Basis of Presentation	6 Months Ended
	Jun. 30, 2024
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 six months ended June 30, 2024 are not necessarily indicative of the results that may be expected for future periods. The Consolidated Balance Sheet at December 31, 2023 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, 2023. 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 December 2023, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2023-09 Income Taxes (Topic 740). The amendments in this update address investor requests for more transparency about income tax information through improvements to income tax disclosures primarily related to the rate reconciliation and income taxes paid information. The amendments in this update require that public business entities on an annual basis (1) disclose specific categories in the rate reconciliation, (2) provide additional information for reconciling items that meet a quantitative threshold (if the effect of those reconciling items is equal to or greater than five percent of the amount computed by multiplying pretax income (or loss) by the applicable statutory income tax rate), (3) disclose the amount of income taxes paid (net of refunds received) disaggregated by federal (national), state, and foreign taxes, (4) disclose the amount of income taxes paid (net of refunds received) disaggregated by individual jurisdictions in which income taxes paid (net of refunds received) is equal to or greater than five percent of total income taxes paid (net of refunds received), (5) disclose income (or loss) from continuing operations before income tax expense (or benefit) disaggregated between domestic and foreign, and (6) disclose income tax expense (or benefit) from continuing operations disaggregated by federal (national), state, and foreign. The amendments in this update are effective for annual periods beginning after December 15, 2024, and should be applied prospectively. 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 November 2023, the FASB issued ASU 2023-07 Segment Reporting (Topic 280). The amendments in this update improve financial reporting by requiring disclosure of incremental segment information on an annual and interim basis for all public entities to enable investors to develop more decision-useful financial analyses. Topic 280 requires a public entity to report a measure of segment profit or loss that the chief operating decision maker uses to assess segment performance and make decisions about allocating resources. Topic 280 also requires other specified segment items and amounts, such as depreciation, amortization, and depletion expense, to be disclosed under certain circumstances. The amendments in this update do not change or remove those disclosure requirements. The amendments in this update also do not change how a public entity identifies its operating segments, aggregates those operating segments, or applies the quantitative thresholds to determine its reportable segments. The amendments in this update are effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024 and should be applied 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 August 2023, the FASB issued 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. 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 Six Months Ended 2024 2023 2024 2023 Anti-Dilutive Restricted Stock Units 319 470 355 331 Anti-Dilutive Performance Share Units — — — — 319 470 355 331 The computations for basic and dilutive earnings per share are as follows: Dollars in thousands, except per share data Three Months Ended Six Months Ended 2024 2023 2024 2023 Numerator: Net Income $ 58,061 $ 167,723 $ 159,952 $ 398,100 Denominator: Weighted-average shares of common stock outstanding 29,584,862 33,557,761 29,768,942 34,043,815 Effect of dilutive shares 101,204 399,384 113,369 490,396 Weighted-average diluted shares of common stock outstanding 29,686,066 33,957,145 29,882,311 34,534,211 Earnings per Share: Basic $ 1.96 $ 5.00 $ 5.37 $ 11.69 Dilutive $ 1.96 $ 4.94 $ 5.35 $ 11.53 As of June 30, 2024, CONSOL Energy has 500,000 shares of preferred stock authorized, none of which are issued or outstanding.

Revenue From Contracts With Cus

Revenue From Contracts With Customers	6 Months Ended
	Jun. 30, 2024
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 June 30, 2024 Domestic Export Total Power Generation $ 186,657 $ 32,012 $ 218,669 Industrial 7,745 122,230 129,975 Metallurgical 9,765 50,913 60,678 Total Coal Revenue 204,167 205,155 409,322 Terminal Revenue 12,020 Freight Revenue 65,640 Other Revenue 3,738 Total Revenue from Contracts with Customers $ 490,720 Three Months Ended June 30, 2023 Domestic Export Total Power Generation $ 122,779 $ 117,767 $ 240,546 Industrial 12,230 205,063 217,293 Metallurgical 6,302 76,958 83,260 Total Coal Revenue 141,311 399,788 541,099 Terminal Revenue 31,368 Freight Revenue 81,556 Total Revenue from Contracts with Customers $ 654,023 Six Months Ended June 30, 2024 Domestic Export Total Power Generation $ 351,390 $ 92,986 $ 444,376 Industrial 11,151 271,590 282,741 Metallurgical 23,022 107,110 130,132 Total Coal Revenue 385,563 471,686 857,249 Terminal Revenue 36,548 Freight Revenue 135,482 Other Revenue 8,130 Total Revenue from Contracts with Customers $ 1,037,409 Six Months Ended June 30, 2023 Domestic Export Total Power Generation $ 307,455 $ 233,602 $ 541,057 Industrial 18,738 390,673 409,411 Metallurgical 10,627 163,383 174,010 Total Coal Revenue 336,820 787,658 1,124,478 Terminal Revenue 58,079 Freight Revenue 149,063 Total Revenue from Contracts with Customers $ 1,331,620 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 between the 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, 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. 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 June 30, 2024 and December 31, 2023, the Company did not have any capitalized costs to obtain customer contracts on its Consolidated Balance Sheets. As of and for the three and six months ended June 30, 2024 and 2023, 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 June 30, 2024 and December 31, 2023, the Company did not have any capitalized costs to obtain customer contracts on its Consolidated Balance Sheets. As of and for the three and six months ended June 30, 2024 and 2023, the Company has not recognized any amortization of previously existing capitalized costs of obtaining Terminal customer contracts. Further, the Company has not recognized any Terminal 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. Other Revenue Other revenue consists of revenue generated from carbon products and materials businesses led by CONSOL Innovations LLC, our wholly-owned subsidiary. This revenue is primarily comprised of sales of composite tools that are used in the aerospace industry. Revenues for these products are earned and recognized as the tools are built and progress toward product completion. Additionally, other revenue consists of revenue generated from the processing of third-party coal at the Itmann Mining Complex. Revenues for these services are earned and performance obligations are considered fulfilled as the services are performed. Other revenue is included within Miscellaneous Other Income in the accompanying Consolidated Statements of Income. 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	6 Months Ended
	Jun. 30, 2024
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 Cost (Credit) are as follows: Pension Benefits Other Post-Employment Benefits Three Months Ended Six Months Ended Three Months Ended Six Months Ended 2024 2023 2024 2023 2024 2023 2024 2023 Service Cost $ 302 $ 305 $ 604 $ 609 $ — $ — $ — $ — Interest Cost 6,431 6,757 12,862 13,514 2,758 3,261 5,516 6,522 Expected Return on Plan Assets (7,991) (9,868) (15,982) (19,735) — — — — Amortization of Prior Service Credits — — — — (602) (602) (1,203) (1,203) Amortization of Actuarial Loss (Gain) 1,566 185 3,132 370 (69) — (139) — Net Periodic Benefit Cost (Credit) $ 308 $ (2,621) $ 616 $ (5,242) $ 2,087 $ 2,659 $ 4,174 $ 5,319 Expenses (credits) 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 (loss) 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	6 Months Ended
	Jun. 30, 2024
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 Six Months Ended Three Months Ended Six Months Ended 2024 2023 2024 2023 2024 2023 2024 2023 Service Cost $ 747 $ 578 $ 1,493 $ 1,156 $ 1,464 $ 1,399 $ 2,928 $ 2,798 Interest Cost 2,066 2,072 4,132 4,143 572 629 1,145 1,257 Amortization of Actuarial Loss (Gain) 108 (262) 217 (523) (540) (513) (1,080) (1,025) State Administrative Fees and Insurance Bond Premiums — — — — 465 466 929 1,011 Net Periodic Benefit Cost $ 2,921 $ 2,388 $ 5,842 $ 4,776 $ 1,961 $ 1,981 $ 3,922 $ 4,041 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 (loss) income are reflected in Operating and Other Costs in the Consolidated Statements of Income.

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2024
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES: The Company recorded its provision for income taxes for the three and six months ended June 30, 2024 of $9,027, or 13.5%, and $25,870, or 13.9%, 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 six months ended June 30, 2024 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 related to equity compensation and changes to uncertain tax positions. The provision for income taxes for the three and six months ended June 30, 2023 of $37,574, or 18.3% , and $79,167, or 16.6%, 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 six months ended June 30, 2023 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. The tax provision amounts also included discrete tax adjustments primarily related to equity compensation. 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 2023 for federal and state returns.

Cash and Cash Equivalents and S

Cash and Cash Equivalents and Short-Term Investments	6 Months Ended
	Jun. 30, 2024
Investments, Debt and Equity Securities [Abstract]
Cash and Cash Equivalents and Short-Term Investments	CASH AND CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS: The following table disaggregates CONSOL Energy's cash, cash equivalents and restricted cash, which reconciles to the total shown on the Consolidated Statements of Cash Flows: June 30, 2024 2023 Cash and Cash Equivalents $ 216,115 $ 189,539 Restricted Cash - Current (1) 40,711 45,554 Restricted Cash - Non-current (1) — 7,577 Cash and Cash Equivalents and Restricted Cash $ 256,826 $ 242,670 (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. The components of cash and cash equivalents and restricted cash as of December 31, 2023 and 2022 are disclosed in Note 6 in the Notes to the Consolidated Financial Statements included in our Form 10-K for the year ended December 31, 2023, filed with the Securities and Exchange Commission on February 9, 2024. The Company has invested in marketable debt securities, primarily comprised of highly liquid U.S. Treasury securities. These investments are held in the custody of financial institutions. The securities outstanding at June 30, 2024 are classified as available-for-sale securities and have maturity dates ranging from July 2024 through April 2025, and are classified as current assets accordingly. The Company's investments in available-for-sale securities are as follows: June 30, 2024 Gross Unrealized Amortized Cost Allowance for Credit Losses Gains Losses Fair Value U.S. Treasury Securities $ 83,424 $ — $ — $ (80) $ 83,344 December 31, 2023 Gross Unrealized Amortized Cost Allowance for Credit Losses Gains Losses Fair Value U.S. Treasury Securities $ 81,829 $ — $ 103 $ — $ 81,932 Available-for-sale investments are reported at fair value in the accompanying balance sheet and any unrealized gains or losses are recognized in other comprehensive income (loss), net of tax. The unrealized losses and gains in the Company's portfolio at June 30, 2024 and December 31, 2023, respectively, are the result of normal market fluctuations. Interest and dividends are included in net income when earned.

Credit Losses

Credit Losses	6 Months Ended
	Jun. 30, 2024
Credit Loss [Abstract]
Credit Losses	CREDIT LOSSES: Trade receivables are recorded at the invoiced amount. 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 may be at risk of exposure 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 may be necessary from time to time and 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 and other non-trade contractual arrangements to present the net amount expected to be collected. Trade Receivables Other Non-Trade Contractual Beginning Balance, December 31, 2023 $ 466 $ 7,504 Provision for expected credit losses 158 6 Ending Balance, June 30, 2024 $ 624 $ 7,510

Inventories

Inventories	6 Months Ended
	Jun. 30, 2024
Inventory Disclosure [Abstract]
Inventories	INVENTORIES: Inventory components consist of the following: June 30, December 31, Coal $ 25,084 $ 17,128 Supplies 72,423 71,026 Total Inventories $ 97,507 $ 88,154 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	6 Months Ended
	Jun. 30, 2024
Receivables [Abstract]
Accounts Receivable Securitization	ACCOUNTS RECEIVABLE SECURITIZATION: At June 30, 2024, 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 July 2022, the securitization facility was 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. At June 30, 2024, the Company's eligible accounts receivable yielded $53,510 of borrowing capacity. At June 30, 2024, the facility had no outstanding borrowings and $50,831 of letters of credit outstanding, leaving available borrowing capacity of $2,679. At December 31, 2023, the Company's eligible accounts receivable yielded $72,125 of borrowing capacity. At December 31, 2023, the facility had no outstanding borrowings and $72,087 of letters of credit outstanding, leaving available borrowing capacity of $38. Costs associated with the receivables facility totaled $347 and $712 for the three and six months ended June 30, 2024, respectively, and $324 and $737 for the three and six months ended June 30, 2023, respectively. The Company has not derecognized any receivables due to its continued involvement in the collections efforts.

Property, Plant and Equipment

Property, Plant and Equipment	6 Months Ended
	Jun. 30, 2024
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment	PROPERTY, PLANT AND EQUIPMENT: Property, plant and equipment consists of the following: June 30, December 31, Plant and Equipment $ 3,546,964 $ 3,458,655 Coal Properties and Surface Lands 909,303 906,343 Airshafts 503,843 492,806 Mine Development 366,260 366,260 Advance Mining Royalties 329,285 328,340 Total Property, Plant and Equipment 5,655,655 5,552,404 Less: Accumulated Depreciation, Depletion and Amortization 3,744,633 3,649,281 Total Property, Plant and Equipment - Net $ 1,911,022 $ 1,903,123 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 June 30, 2024 and December 31, 2023, property, plant and equipment includes gross assets under finance leases of $32,418 and $44,622, respectively. Accumulated amortization for finance leases was $24,716 and $31,873 at June 30, 2024 and December 31, 2023, respectively. Amortization expense for assets under finance leases approximated $2,525 and $6,944 for the three months ended June 30, 2024 and 2023, respectively, and $5,542 and $13,845 for the six months ended June 30, 2024 and 2023, respectively, and is included in Depreciation, Depletion and Amortization in the accompanying Consolidated Statements of Income.

Other Accrued Liabilities

Other Accrued Liabilities	6 Months Ended
	Jun. 30, 2024
Other Liabilities Disclosure [Abstract]
Other Accrued Liabilities	OTHER ACCRUED LIABILITIES: June 30, December 31, Subsidence Liability $ 106,811 $ 105,322 Accrued Compensation and Benefits 37,617 73,763 Accrued Other Taxes 12,031 12,276 Accrued Interest 6,302 6,283 Deferred Revenue 4,278 9,517 Other 8,506 10,457 Current Portion of Long-Term Liabilities: Asset Retirement Obligations 33,984 28,571 Postretirement Benefits Other than Pensions 19,267 19,327 Pneumoconiosis Benefits 14,688 15,071 Workers' Compensation 9,577 10,019 Total Other Accrued Liabilities $ 253,061 $ 290,606

Long-Term Debt

Long-Term Debt	6 Months Ended
	Jun. 30, 2024
Debt Disclosure [Abstract]
Long-Term Debt	LONG-TERM DEBT: June 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 Advance Royalty Commitments (8.80% Weighted Average Interest Rate) 5,922 5,922 Other Debt Arrangements 909 1,419 Less: Unamortized Debt Issuance Costs (1,449) (1,686) 183,247 183,520 Less: Amounts Due in One Year* (1,238) (1,635) Long-Term Debt $ 182,009 $ 181,885 * Excludes current portion of Finance Lease Obligations of $4,774 and $9,471 at June 30, 2024 and December 31, 2023, 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 Company's total net leverage ratio and this rate resets quarterly. 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 1.3 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 0.01 to 1.00 at June 30, 2024. The Company's total net leverage ratio was (0.15) to 1.00 at June 30, 2024. The Company's fixed charge coverage ratio was 2.80 to 1.00 at June 30, 2024. The Company was in compliance with all of its financial covenants under the Revolving Credit Facility as of June 30, 2024. At June 30, 2024, the Revolving Credit Facility had no borrowings outstanding and $128,019 of letters of credit outstanding, leaving $226,981 of unused capacity. At December 31, 2023, the Revolving Credit Facility had no borrowings outstanding and $111,186 of letters of credit outstanding, leaving $243,814 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 not a guarantor 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 $141,231 and $147,918, comprised mainly of $140,904 and $147,612 trade receivables, net, at June 30, 2024 and December 31, 2023, respectively. Net income attributable to the SPV was $201 and $1,986 for the three months ended June 30, 2024 and 2023, respectively, and $247 and $4,608 for the six months ended June 30, 2024 and 2023, 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 six months ended June 30, 2024 and 2023, there were no borrowings or payments under the accounts receivable securitization facility. See Note 9 - Accounts Receivable Securitization for additional information. 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 Loan Agreement and Guaranty incorporate by reference covenants in 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, under which the 11.00% Senior Secured Second Lien Notes due 2025 (the “Second Lien Notes”) were issued, including covenants that limited the ability of the Company and certain subsidiaries of the Company, as 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. The Company started a capital construction project on the PAMC coarse refuse disposal area in 2017, which is now funded, in part, by the proceeds from the PEDFA Bonds. The Company expects to expend these funds as qualified work is completed. The Company utilized restricted cash in the amount of $4,006 and $7,041 during the three and six months ended June 30, 2024, respectively, and $4,627 and $7,871 during the three and six months ended June 30, 2023, respectively, for qualified expenses. Additionally, the Company had $5,402 and $12,177 in restricted cash at June 30, 2024 and December 31, 2023, 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	6 Months Ended
	Jun. 30, 2024
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 June 30, 2024. 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 June 30, 2024 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. With respect to this lawsuit, while a loss is reasonably possible, it is not probable and, as a result, no accrual has been recorded. 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. With respect to this lawsuit, while a loss is reasonably possible, it is not probable and, as a result, no accrual has been recorded. 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 reasonably possible, it is not probable and, as a result, no accrual has been recorded. United Mine Workers of America 1974 Pension Plan Litigation: On March 7, 2024, the Company's former parent filed a complaint (the “Indemnification Lawsuit”) in the Superior Court of the State of Delaware against the Company that stated that the Company's former parent had settled potential claims asserted by the United Mine Workers of America 1974 Pension Plan (“1974 Plan”) against the Company's former parent for a total settlement amount of $75,000 to be paid over a five year period, in exchange for a full release by the 1974 Plan of the Company's former parent, the Company and their affiliates. In the Indemnification Lawsuit, the Company's former parent is seeking (i) indemnification from the Company under the 2017 Separation and Distribution Agreement between the Company and its former parent for the $75,000 settlement plus the Company's former parent's alleged legal expenses related to its settlement with the 1974 Plan, (ii) the costs and expenses the Company's former parent incurs in connection with the Indemnification Lawsuit, (iii) pre- and post-judgment interest, (iv) punitive damages and (v) any other relief the court deems just and proper. On May 9, 2024, the Company's former parent filed a Motion for Summary Judgment while the Company filed a brief in opposition of the motion on June 27, 2024, with briefing concluding on July 19, 2024. The Court has not yet ruled on this motion. The Company does not believe that it has any obligations to indemnify its former parent under the Separation and Distribution Agreement with respect to its former parent's settlement with the 1974 Plan and intends to vigorously defend itself against all claims asserted against it in the Indemnification Lawsuit. With respect to this lawsuit, while a loss is reasonably possible, it is not probable and, as a result, no accrual has been recorded. 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 June 30, 2024, 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 $ 47,446 $ 35,131 $ 12,315 $ — $ — Environmental 398 398 — — — Other 131,006 122,332 8,674 — — Total Letters of Credit $ 178,850 $ 157,861 $ 20,989 $ — $ — Surety Bonds: Employee-Related $ 80,210 $ 80,210 $ — $ — $ — Environmental 528,603 511,588 17,015 — — Other 4,071 4,071 — — — Total Surety Bonds $ 612,884 $ 595,869 $ 17,015 $ — $ — 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.

Fair Value of Financial Instrum

Fair Value of Financial Instruments	6 Months Ended
	Jun. 30, 2024
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. 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 June 30, 2024 December 31, 2023 Description Level 1 Level 2 Level 3 Level 1 Level 2 Level 3 U.S. Treasury Securities $ 83,344 $ — $ — $ 81,932 $ — $ — 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: June 30, 2024 December 31, 2023 Carrying Fair Carrying Fair Long-Term Debt (Excluding Debt Issuance Costs) $ 184,696 $ 198,866 $ 185,206 $ 199,591 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	6 Months Ended
	Jun. 30, 2024
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, carbon products and materials businesses led by CONSOL Innovations LLC, 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 productivity 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 June 30, 2024 are: PAMC CONSOL Marine Terminal Other, Corporate and Eliminations Consolidated Coal Revenue $ 384,442 $ — $ 24,880 $ 409,322 Terminal Revenue — 12,020 — 12,020 Freight Revenue 63,450 — 2,190 65,640 Other Revenue — — 3,738 3,738 Total Revenue from Contracts with Customers $ 447,892 $ 12,020 $ 30,808 $ 490,720 Adjusted EBITDA $ 138,446 $ 5,168 $ (19,076) $ 124,538 Segment Assets $ 1,665,463 $ 85,445 $ 959,546 $ 2,710,454 Depreciation, Depletion and Amortization $ 43,675 $ 1,233 $ 9,939 $ 54,847 Capital Expenditures $ 47,043 $ 3,737 $ 4,628 $ 55,408 Reportable segment results for the three months ended June 30, 2023 are: PAMC CONSOL Marine Terminal Other, Corporate and Eliminations Consolidated Coal Revenue $ 521,176 $ — $ 19,923 $ 541,099 Terminal Revenue — 31,368 — 31,368 Freight Revenue 77,882 — 3,674 81,556 Total Revenue from Contracts with Customers $ 599,058 $ 31,368 $ 23,597 $ 654,023 Adjusted EBITDA $ 270,065 $ 23,856 $ (17,971) $ 275,950 Segment Assets $ 1,682,118 $ 82,326 $ 913,905 $ 2,678,349 Depreciation, Depletion and Amortization $ 50,268 $ 1,176 $ 13,084 $ 64,528 Capital Expenditures $ 37,495 $ 1,124 $ 3,706 $ 42,325 Reportable segment results for the six months ended June 30, 2024 are: PAMC CONSOL Marine Terminal Other, Corporate and Eliminations Consolidated Coal Revenue $ 800,629 $ — $ 56,620 $ 857,249 Terminal Revenue — 36,548 — 36,548 Freight Revenue 130,350 — 5,132 135,482 Other Revenue — — 8,130 8,130 Total Revenue from Contracts with Customers $ 930,979 $ 36,548 $ 69,882 $ 1,037,409 Adjusted EBITDA $ 307,779 $ 22,008 $ (23,496) $ 306,291 Segment Assets $ 1,665,463 $ 85,445 $ 959,546 $ 2,710,454 Depreciation, Depletion and Amortization $ 91,944 $ 2,474 $ 17,426 $ 111,844 Capital Expenditures $ 84,001 $ 4,800 $ 8,959 $ 97,760 Reportable segment results for the six months ended June 30, 2023 are: PAMC CONSOL Marine Terminal Other, Corporate and Eliminations Consolidated Coal Revenue $ 1,084,513 $ — $ 39,965 $ 1,124,478 Terminal Revenue — 58,079 — 58,079 Freight Revenue 142,219 — 6,844 149,063 Total Revenue from Contracts with Customers $ 1,226,732 $ 58,079 $ 46,809 $ 1,331,620 Adjusted EBITDA $ 601,029 $ 44,471 $ (23,250) $ 622,250 Segment Assets $ 1,682,118 $ 82,326 $ 913,905 $ 2,678,349 Depreciation, Depletion and Amortization $ 101,639 $ 2,332 $ 20,108 $ 124,079 Capital Expenditures $ 64,302 $ 1,699 $ 10,081 $ 76,082 For the three and six months ended June 30, 2024 and 2023, the Company's reportable segments had revenues from the following customers, each comprising over 10% of the Company's total sales: Three Months Ended Six Months Ended 2024 2023 2024 2023 Customer A $ 60,982 * $ 107,468 * Customer B * * $ 109,828 $ 151,404 Customer C * $ 67,197 $ 108,921 $ 135,412 Customer D * $ 70,725 * $ 145,034 *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 June 30, 2024 PAMC CONSOL Marine Terminal Other Consolidated Net Income (Loss) $ 94,295 $ 2,321 $ (38,555) $ 58,061 Income Tax Expense — — 9,027 9,027 Interest Expense — 1,518 3,475 4,993 Interest Income (1,320) — (3,307) (4,627) Depreciation, Depletion and Amortization 43,675 1,233 9,939 54,847 Stock-Based Compensation 1,796 96 345 2,237 Adjusted EBITDA $ 138,446 $ 5,168 $ (19,076) $ 124,538 Three Months Ended June 30, 2023 PAMC CONSOL Marine Terminal Other Consolidated Net Income (Loss) $ 218,636 $ 21,094 $ (72,007) $ 167,723 Income Tax Expense — — 37,574 37,574 Interest Expense — 1,526 5,629 7,155 Interest Income (513) — (3,198) (3,711) Depreciation, Depletion and Amortization 50,268 1,176 13,084 64,528 Stock-Based Compensation 1,674 60 259 1,993 Loss on Debt Extinguishment — — 688 688 Adjusted EBITDA $ 270,065 $ 23,856 $ (17,971) $ 275,950 Six Months Ended June 30, 2024 PAMC CONSOL Marine Terminal Other Consolidated Net Income (Loss) $ 212,466 $ 16,152 $ (68,666) $ 159,952 Income Tax Expense — — 25,870 25,870 Interest Expense — 3,039 7,360 10,399 Interest Income (2,613) — (6,516) (9,129) Depreciation, Depletion and Amortization 91,944 2,474 17,426 111,844 Stock-Based Compensation 5,982 343 1,030 7,355 Adjusted EBITDA $ 307,779 $ 22,008 $ (23,496) $ 306,291 Six Months Ended June 30, 2023 PAMC CONSOL Marine Terminal Other Consolidated Net Income (Loss) $ 494,611 $ 38,883 $ (135,394) $ 398,100 Income Tax Expense — — 79,167 79,167 Interest Expense — 3,052 14,382 17,434 Interest Income (921) — (4,457) (5,378) Depreciation, Depletion and Amortization 101,639 2,332 20,108 124,079 Stock-Based Compensation 5,700 204 881 6,785 Loss on Debt Extinguishment — — 2,063 2,063 Adjusted EBITDA $ 601,029 $ 44,471 $ (23,250) $ 622,250

Stock and Debt Repurchases

Stock and Debt Repurchases	6 Months Ended
	Jun. 30, 2024
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 imposed by any credit agreement, receivables purchase agreement or indenture.

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Jun. 30, 2023
Pay vs Performance Disclosure
Net Income	$ 58,061	$ 101,891	$ 167,723	$ 230,377	$ 159,952	$ 398,100

Insider Trading Arrangements

Insider Trading Arrangements	3 Months Ended
	Jun. 30, 2024
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

Basis of Presentation (Policies

Basis of Presentation (Policies)	6 Months Ended
	Jun. 30, 2024
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 six months ended June 30, 2024 are not necessarily indicative of the results that may be expected for future periods. The Consolidated Balance Sheet at December 31, 2023 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, 2023. 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 December 2023, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2023-09 Income Taxes (Topic 740). The amendments in this update address investor requests for more transparency about income tax information through improvements to income tax disclosures primarily related to the rate reconciliation and income taxes paid information. The amendments in this update require that public business entities on an annual basis (1) disclose specific categories in the rate reconciliation, (2) provide additional information for reconciling items that meet a quantitative threshold (if the effect of those reconciling items is equal to or greater than five percent of the amount computed by multiplying pretax income (or loss) by the applicable statutory income tax rate), (3) disclose the amount of income taxes paid (net of refunds received) disaggregated by federal (national), state, and foreign taxes, (4) disclose the amount of income taxes paid (net of refunds received) disaggregated by individual jurisdictions in which income taxes paid (net of refunds received) is equal to or greater than five percent of total income taxes paid (net of refunds received), (5) disclose income (or loss) from continuing operations before income tax expense (or benefit) disaggregated between domestic and foreign, and (6) disclose income tax expense (or benefit) from continuing operations disaggregated by federal (national), state, and foreign. The amendments in this update are effective for annual periods beginning after December 15, 2024, and should be applied prospectively. 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 November 2023, the FASB issued ASU 2023-07 Segment Reporting (Topic 280). The amendments in this update improve financial reporting by requiring disclosure of incremental segment information on an annual and interim basis for all public entities to enable investors to develop more decision-useful financial analyses. Topic 280 requires a public entity to report a measure of segment profit or loss that the chief operating decision maker uses to assess segment performance and make decisions about allocating resources. Topic 280 also requires other specified segment items and amounts, such as depreciation, amortization, and depletion expense, to be disclosed under certain circumstances. The amendments in this update do not change or remove those disclosure requirements. The amendments in this update also do not change how a public entity identifies its operating segments, aggregates those operating segments, or applies the quantitative thresholds to determine its reportable segments. The amendments in this update are effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024 and should be applied 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 August 2023, the FASB issued 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.
Earnings per Share	Earnings per Share

Basis of Presentation (Tables)

Basis of Presentation (Tables)	6 Months Ended
	Jun. 30, 2024
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 Six Months Ended 2024 2023 2024 2023 Anti-Dilutive Restricted Stock Units 319 470 355 331 Anti-Dilutive Performance Share Units — — — — 319 470 355 331
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 Six Months Ended 2024 2023 2024 2023 Numerator: Net Income $ 58,061 $ 167,723 $ 159,952 $ 398,100 Denominator: Weighted-average shares of common stock outstanding 29,584,862 33,557,761 29,768,942 34,043,815 Effect of dilutive shares 101,204 399,384 113,369 490,396 Weighted-average diluted shares of common stock outstanding 29,686,066 33,957,145 29,882,311 34,534,211 Earnings per Share: Basic $ 1.96 $ 5.00 $ 5.37 $ 11.69 Dilutive $ 1.96 $ 4.94 $ 5.35 $ 11.53

Revenue From Contracts With C_2

Revenue From Contracts With Customers (Tables)	6 Months Ended
	Jun. 30, 2024
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 June 30, 2024 Domestic Export Total Power Generation $ 186,657 $ 32,012 $ 218,669 Industrial 7,745 122,230 129,975 Metallurgical 9,765 50,913 60,678 Total Coal Revenue 204,167 205,155 409,322 Terminal Revenue 12,020 Freight Revenue 65,640 Other Revenue 3,738 Total Revenue from Contracts with Customers $ 490,720 Three Months Ended June 30, 2023 Domestic Export Total Power Generation $ 122,779 $ 117,767 $ 240,546 Industrial 12,230 205,063 217,293 Metallurgical 6,302 76,958 83,260 Total Coal Revenue 141,311 399,788 541,099 Terminal Revenue 31,368 Freight Revenue 81,556 Total Revenue from Contracts with Customers $ 654,023 Six Months Ended June 30, 2024 Domestic Export Total Power Generation $ 351,390 $ 92,986 $ 444,376 Industrial 11,151 271,590 282,741 Metallurgical 23,022 107,110 130,132 Total Coal Revenue 385,563 471,686 857,249 Terminal Revenue 36,548 Freight Revenue 135,482 Other Revenue 8,130 Total Revenue from Contracts with Customers $ 1,037,409

Components of Pension and Oth_2

Components of Pension and Other Post-employment Benefit (OPEB) Plans Net Periodic Benefit Costs (Tables)	6 Months Ended
	Jun. 30, 2024
Retirement Benefits [Abstract]
Schedule of Defined Benefit Plans Disclosures	The components of Net Periodic Benefit Cost (Credit) are as follows: Pension Benefits Other Post-Employment Benefits Three Months Ended Six Months Ended Three Months Ended Six Months Ended 2024 2023 2024 2023 2024 2023 2024 2023 Service Cost $ 302 $ 305 $ 604 $ 609 $ — $ — $ — $ — Interest Cost 6,431 6,757 12,862 13,514 2,758 3,261 5,516 6,522 Expected Return on Plan Assets (7,991) (9,868) (15,982) (19,735) — — — — Amortization of Prior Service Credits — — — — (602) (602) (1,203) (1,203) Amortization of Actuarial Loss (Gain) 1,566 185 3,132 370 (69) — (139) — Net Periodic Benefit Cost (Credit) $ 308 $ (2,621) $ 616 $ (5,242) $ 2,087 $ 2,659 $ 4,174 $ 5,319

Components of Coal Workers' P_2

Components of Coal Workers' Pneumoconiosis (CWP) and Workers' Compensation Net Periodic Benefit Costs (Tables)	6 Months Ended
	Jun. 30, 2024
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 Six Months Ended Three Months Ended Six Months Ended 2024 2023 2024 2023 2024 2023 2024 2023 Service Cost $ 747 $ 578 $ 1,493 $ 1,156 $ 1,464 $ 1,399 $ 2,928 $ 2,798 Interest Cost 2,066 2,072 4,132 4,143 572 629 1,145 1,257 Amortization of Actuarial Loss (Gain) 108 (262) 217 (523) (540) (513) (1,080) (1,025) State Administrative Fees and Insurance Bond Premiums — — — — 465 466 929 1,011 Net Periodic Benefit Cost $ 2,921 $ 2,388 $ 5,842 $ 4,776 $ 1,961 $ 1,981 $ 3,922 $ 4,041

Cash and Cash Equivalents and_2

Cash and Cash Equivalents and Short-Term Investments (Tables)	6 Months Ended
	Jun. 30, 2024
Investments, Debt and Equity Securities [Abstract]
Cash, Cash Equivalents and Investments	The following table disaggregates CONSOL Energy's cash, cash equivalents and restricted cash, which reconciles to the total shown on the Consolidated Statements of Cash Flows: June 30, 2024 2023 Cash and Cash Equivalents $ 216,115 $ 189,539 Restricted Cash - Current (1) 40,711 45,554 Restricted Cash - Non-current (1) — 7,577 Cash and Cash Equivalents and Restricted Cash $ 256,826 $ 242,670 (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: June 30, 2024 Gross Unrealized Amortized Cost Allowance for Credit Losses Gains Losses Fair Value U.S. Treasury Securities $ 83,424 $ — $ — $ (80) $ 83,344 December 31, 2023 Gross Unrealized Amortized Cost Allowance for Credit Losses Gains Losses Fair Value U.S. Treasury Securities $ 81,829 $ — $ 103 $ — $ 81,932

Credit Losses (Tables)

Credit Losses (Tables)	6 Months Ended
	Jun. 30, 2024
Credit Loss [Abstract]
Accounts Receivable, Allowance for Credit Loss	The following table provides a roll-forward of the allowance for credit losses that is deducted from the amortized cost basis of accounts receivable and other non-trade contractual arrangements to present the net amount expected to be collected. Trade Receivables Other Non-Trade Contractual Beginning Balance, December 31, 2023 $ 466 $ 7,504 Provision for expected credit losses 158 6 Ending Balance, June 30, 2024 $ 624 $ 7,510

Inventories (Tables)

Inventories (Tables)	6 Months Ended
	Jun. 30, 2024
Inventory Disclosure [Abstract]
Schedule of Inventory, Current	Inventory components consist of the following: June 30, December 31, Coal $ 25,084 $ 17,128 Supplies 72,423 71,026 Total Inventories $ 97,507 $ 88,154

Property, Plant and Equipment (

Property, Plant and Equipment (Tables)	6 Months Ended
	Jun. 30, 2024
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment	Property, plant and equipment consists of the following: June 30, December 31, Plant and Equipment $ 3,546,964 $ 3,458,655 Coal Properties and Surface Lands 909,303 906,343 Airshafts 503,843 492,806 Mine Development 366,260 366,260 Advance Mining Royalties 329,285 328,340 Total Property, Plant and Equipment 5,655,655 5,552,404 Less: Accumulated Depreciation, Depletion and Amortization 3,744,633 3,649,281 Total Property, Plant and Equipment - Net $ 1,911,022 $ 1,903,123

Other Accrued Liabilities (Tabl

Other Accrued Liabilities (Tables)	6 Months Ended
	Jun. 30, 2024
Other Liabilities Disclosure [Abstract]
Schedule of Accrued Liabilities	June 30, December 31, Subsidence Liability $ 106,811 $ 105,322 Accrued Compensation and Benefits 37,617 73,763 Accrued Other Taxes 12,031 12,276 Accrued Interest 6,302 6,283 Deferred Revenue 4,278 9,517 Other 8,506 10,457 Current Portion of Long-Term Liabilities: Asset Retirement Obligations 33,984 28,571 Postretirement Benefits Other than Pensions 19,267 19,327 Pneumoconiosis Benefits 14,688 15,071 Workers' Compensation 9,577 10,019 Total Other Accrued Liabilities $ 253,061 $ 290,606

Long-Term Debt (Tables)

Long-Term Debt (Tables)	6 Months Ended
	Jun. 30, 2024
Debt Disclosure [Abstract]
Schedule of Long-Term Debt Instruments	June 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 Advance Royalty Commitments (8.80% Weighted Average Interest Rate) 5,922 5,922 Other Debt Arrangements 909 1,419 Less: Unamortized Debt Issuance Costs (1,449) (1,686) 183,247 183,520 Less: Amounts Due in One Year* (1,238) (1,635) Long-Term Debt $ 182,009 $ 181,885

Commitments and Contingent Li_2

Commitments and Contingent Liabilities (Tables)	6 Months Ended
	Jun. 30, 2024
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 $ 47,446 $ 35,131 $ 12,315 $ — $ — Environmental 398 398 — — — Other 131,006 122,332 8,674 — — Total Letters of Credit $ 178,850 $ 157,861 $ 20,989 $ — $ — Surety Bonds: Employee-Related $ 80,210 $ 80,210 $ — $ — $ — Environmental 528,603 511,588 17,015 — — Other 4,071 4,071 — — — Total Surety Bonds $ 612,884 $ 595,869 $ 17,015 $ — $ —

Fair Value of Financial Instr_2

Fair Value of Financial Instruments (Tables)	6 Months Ended
	Jun. 30, 2024
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 June 30, 2024 December 31, 2023 Description Level 1 Level 2 Level 3 Level 1 Level 2 Level 3 U.S. Treasury Securities $ 83,344 $ — $ — $ 81,932 $ — $ —
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: June 30, 2024 December 31, 2023 Carrying Fair Carrying Fair Long-Term Debt (Excluding Debt Issuance Costs) $ 184,696 $ 198,866 $ 185,206 $ 199,591

Segment Information (Tables)

Segment Information (Tables)	6 Months Ended
	Jun. 30, 2024
Segment Reporting [Abstract]
Schedule of Segment Reporting Information by Segment	Reportable segment results for the three months ended June 30, 2024 are: PAMC CONSOL Marine Terminal Other, Corporate and Eliminations Consolidated Coal Revenue $ 384,442 $ — $ 24,880 $ 409,322 Terminal Revenue — 12,020 — 12,020 Freight Revenue 63,450 — 2,190 65,640 Other Revenue — — 3,738 3,738 Total Revenue from Contracts with Customers $ 447,892 $ 12,020 $ 30,808 $ 490,720 Adjusted EBITDA $ 138,446 $ 5,168 $ (19,076) $ 124,538 Segment Assets $ 1,665,463 $ 85,445 $ 959,546 $ 2,710,454 Depreciation, Depletion and Amortization $ 43,675 $ 1,233 $ 9,939 $ 54,847 Capital Expenditures $ 47,043 $ 3,737 $ 4,628 $ 55,408 Reportable segment results for the three months ended June 30, 2023 are: PAMC CONSOL Marine Terminal Other, Corporate and Eliminations Consolidated Coal Revenue $ 521,176 $ — $ 19,923 $ 541,099 Terminal Revenue — 31,368 — 31,368 Freight Revenue 77,882 — 3,674 81,556 Total Revenue from Contracts with Customers $ 599,058 $ 31,368 $ 23,597 $ 654,023 Adjusted EBITDA $ 270,065 $ 23,856 $ (17,971) $ 275,950 Segment Assets $ 1,682,118 $ 82,326 $ 913,905 $ 2,678,349 Depreciation, Depletion and Amortization $ 50,268 $ 1,176 $ 13,084 $ 64,528 Capital Expenditures $ 37,495 $ 1,124 $ 3,706 $ 42,325 Reportable segment results for the six months ended June 30, 2024 are: PAMC CONSOL Marine Terminal Other, Corporate and Eliminations Consolidated Coal Revenue $ 800,629 $ — $ 56,620 $ 857,249 Terminal Revenue — 36,548 — 36,548 Freight Revenue 130,350 — 5,132 135,482 Other Revenue — — 8,130 8,130 Total Revenue from Contracts with Customers $ 930,979 $ 36,548 $ 69,882 $ 1,037,409 Adjusted EBITDA $ 307,779 $ 22,008 $ (23,496) $ 306,291 Segment Assets $ 1,665,463 $ 85,445 $ 959,546 $ 2,710,454 Depreciation, Depletion and Amortization $ 91,944 $ 2,474 $ 17,426 $ 111,844 Capital Expenditures $ 84,001 $ 4,800 $ 8,959 $ 97,760 Reportable segment results for the six months ended June 30, 2023 are: PAMC CONSOL Marine Terminal Other, Corporate and Eliminations Consolidated Coal Revenue $ 1,084,513 $ — $ 39,965 $ 1,124,478 Terminal Revenue — 58,079 — 58,079 Freight Revenue 142,219 — 6,844 149,063 Total Revenue from Contracts with Customers $ 1,226,732 $ 58,079 $ 46,809 $ 1,331,620 Adjusted EBITDA $ 601,029 $ 44,471 $ (23,250) $ 622,250 Segment Assets $ 1,682,118 $ 82,326 $ 913,905 $ 2,678,349 Depreciation, Depletion and Amortization $ 101,639 $ 2,332 $ 20,108 $ 124,079 Capital Expenditures $ 64,302 $ 1,699 $ 10,081 $ 76,082
Schedule of Revenue by Major Customers by Reporting Segments	For the three and six months ended June 30, 2024 and 2023, the Company's reportable segments had revenues from the following customers, each comprising over 10% of the Company's total sales: Three Months Ended Six Months Ended 2024 2023 2024 2023 Customer A $ 60,982 * $ 107,468 * Customer B * * $ 109,828 $ 151,404 Customer C * $ 67,197 $ 108,921 $ 135,412 Customer D * $ 70,725 * $ 145,034 *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 June 30, 2024 PAMC CONSOL Marine Terminal Other Consolidated Net Income (Loss) $ 94,295 $ 2,321 $ (38,555) $ 58,061 Income Tax Expense — — 9,027 9,027 Interest Expense — 1,518 3,475 4,993 Interest Income (1,320) — (3,307) (4,627) Depreciation, Depletion and Amortization 43,675 1,233 9,939 54,847 Stock-Based Compensation 1,796 96 345 2,237 Adjusted EBITDA $ 138,446 $ 5,168 $ (19,076) $ 124,538 Three Months Ended June 30, 2023 PAMC CONSOL Marine Terminal Other Consolidated Net Income (Loss) $ 218,636 $ 21,094 $ (72,007) $ 167,723 Income Tax Expense — — 37,574 37,574 Interest Expense — 1,526 5,629 7,155 Interest Income (513) — (3,198) (3,711) Depreciation, Depletion and Amortization 50,268 1,176 13,084 64,528 Stock-Based Compensation 1,674 60 259 1,993 Loss on Debt Extinguishment — — 688 688 Adjusted EBITDA $ 270,065 $ 23,856 $ (17,971) $ 275,950 Six Months Ended June 30, 2024 PAMC CONSOL Marine Terminal Other Consolidated Net Income (Loss) $ 212,466 $ 16,152 $ (68,666) $ 159,952 Income Tax Expense — — 25,870 25,870 Interest Expense — 3,039 7,360 10,399 Interest Income (2,613) — (6,516) (9,129) Depreciation, Depletion and Amortization 91,944 2,474 17,426 111,844 Stock-Based Compensation 5,982 343 1,030 7,355 Adjusted EBITDA $ 307,779 $ 22,008 $ (23,496) $ 306,291 Six Months Ended June 30, 2023 PAMC CONSOL Marine Terminal Other Consolidated Net Income (Loss) $ 494,611 $ 38,883 $ (135,394) $ 398,100 Income Tax Expense — — 79,167 79,167 Interest Expense — 3,052 14,382 17,434 Interest Income (921) — (4,457) (5,378) Depreciation, Depletion and Amortization 101,639 2,332 20,108 124,079 Stock-Based Compensation 5,700 204 881 6,785 Loss on Debt Extinguishment — — 2,063 2,063 Adjusted EBITDA $ 601,029 $ 44,471 $ (23,250) $ 622,250

Basis of Presentation - Schedul

Basis of Presentation - Schedule of Antidilutive Securities (Details) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount (in shares)	319	470	355	331
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)	319	470	355	331
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				6 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Jun. 30, 2023
Numerator:
Net Income	$ 58,061	$ 101,891	$ 167,723	$ 230,377	$ 159,952	$ 398,100
Denominator:
Weighted-average shares of common stock outstanding	29,584,862		33,557,761		29,768,942	34,043,815
Effect of dilutive shares	101,204		399,384		113,369	490,396
Weighted-average diluted shares of common stock outstanding	29,686,066		33,957,145		29,882,311	34,534,211
Earnings per Share:
Basic (in dollars per share)	$ 1.96		$ 5		$ 5.37	$ 11.69
Diluted (in dollars per share)	$ 1.96		$ 4.94		$ 5.35	$ 11.53

Basis of Presentation - Narrati

Basis of Presentation - Narrative (Details)	Jun. 30, 2024 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		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Disaggregation of Revenue [Line Items]
Total Revenue from Contracts with Customers	$ 490,720	$ 654,023	$ 1,037,409	$ 1,331,620
Coal
Disaggregation of Revenue [Line Items]
Total Revenue from Contracts with Customers	409,322	541,099	857,249	1,124,478
Power Generation
Disaggregation of Revenue [Line Items]
Total Revenue from Contracts with Customers	218,669	240,546	444,376	541,057
Industrial
Disaggregation of Revenue [Line Items]
Total Revenue from Contracts with Customers	129,975	217,293	282,741	409,411
Metallurgical
Disaggregation of Revenue [Line Items]
Total Revenue from Contracts with Customers	60,678	83,260	130,132	174,010
Terminal Revenue
Disaggregation of Revenue [Line Items]
Total Revenue from Contracts with Customers	12,020	31,368	36,548	58,079
Freight Revenue
Disaggregation of Revenue [Line Items]
Total Revenue from Contracts with Customers	65,640	81,556	135,482	149,063
Other Revenue
Disaggregation of Revenue [Line Items]
Total Revenue from Contracts with Customers	3,738		8,130
Domestic | Coal
Disaggregation of Revenue [Line Items]
Total Revenue from Contracts with Customers	204,167	141,311	385,563	336,820
Domestic | Power Generation
Disaggregation of Revenue [Line Items]
Total Revenue from Contracts with Customers	186,657	122,779	351,390	307,455
Domestic | Industrial
Disaggregation of Revenue [Line Items]
Total Revenue from Contracts with Customers	7,745	12,230	11,151	18,738
Domestic | Metallurgical
Disaggregation of Revenue [Line Items]
Total Revenue from Contracts with Customers	9,765	6,302	23,022	10,627
Export | Coal
Disaggregation of Revenue [Line Items]
Total Revenue from Contracts with Customers	205,155	399,788	471,686	787,658
Export | Power Generation
Disaggregation of Revenue [Line Items]
Total Revenue from Contracts with Customers	32,012	117,767	92,986	233,602
Export | Industrial
Disaggregation of Revenue [Line Items]
Total Revenue from Contracts with Customers	122,230	205,063	271,590	390,673
Export | Metallurgical
Disaggregation of Revenue [Line Items]
Total Revenue from Contracts with Customers	$ 50,913	$ 76,958	$ 107,110	$ 163,383

Revenue From Contracts With C_4

Revenue From Contracts With Customers - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
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		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Pension Benefits
Defined Contribution Plan Disclosure [Line Items]
Service Cost	$ 302	$ 305	$ 604	$ 609
Interest Cost	6,431	6,757	12,862	13,514
Expected Return on Plan Assets	(7,991)	(9,868)	(15,982)	(19,735)
Amortization of Prior Service Credits	0	0	0	0
Amortization of Actuarial Loss (Gain)	1,566	185	3,132	370
Net Periodic Benefit Cost (Credit)	308	(2,621)	616	(5,242)
Other Post-Employment Benefits
Defined Contribution Plan Disclosure [Line Items]
Service Cost	0	0	0	0
Interest Cost	2,758	3,261	5,516	6,522
Expected Return on Plan Assets	0	0	0	0
Amortization of Prior Service Credits	(602)	(602)	(1,203)	(1,203)
Amortization of Actuarial Loss (Gain)	(69)	0	(139)	0
Net Periodic Benefit Cost (Credit)	$ 2,087	$ 2,659	$ 4,174	$ 5,319

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		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
CWP
Defined Contribution Plan Disclosure [Line Items]
Service Cost	$ 747	$ 578	$ 1,493	$ 1,156
Interest Cost	2,066	2,072	4,132	4,143
Amortization of Actuarial Loss (Gain)	108	(262)	217	(523)
State Administrative Fees and Insurance Bond Premiums	0	0	0	0
Net Periodic Benefit Cost (Credit)	2,921	2,388	5,842	4,776
Workers' Compensation
Defined Contribution Plan Disclosure [Line Items]
Service Cost	1,464	1,399	2,928	2,798
Interest Cost	572	629	1,145	1,257
Amortization of Actuarial Loss (Gain)	(540)	(513)	(1,080)	(1,025)
State Administrative Fees and Insurance Bond Premiums	465	466	929	1,011
Net Periodic Benefit Cost (Credit)	$ 1,961	$ 1,981	$ 3,922	$ 4,041

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Income Tax Disclosure [Abstract]
Income Tax Expense	$ 9,027	$ 37,574	$ 25,870	$ 79,167
Effective income tax rate reconciliation, percent	13.50%	18.30%	13.90%	16.60%
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	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Investments, Debt and Equity Securities [Abstract]
Purchases of short-term investments	$ 20,084	$ 129,757

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	Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023	Dec. 31, 2022
Investments, Debt and Equity Securities [Abstract]
Cash and Cash Equivalents	$ 216,115	$ 199,371	$ 189,539
Restricted Cash - Current	40,711		45,554
Restricted Cash - Non-current	0		7,577
Cash and Cash Equivalents and Restricted Cash	$ 256,826	$ 243,268	$ 242,670	$ 326,952

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 - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Schedule of Held-to-Maturity Securities [Line Items]
Amortized Cost	$ 83,424	$ 81,829
Allowance for Credit Losses	0	0
Gains	0	103
Losses	(80)	0
Fair Value	$ 83,344	$ 81,932

Credit Losses - Allowance for C

Credit Losses - Allowance for Credit Losses by Portfolio (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2024 USD ($)
Trade Receivables
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	$ 466
Provision for expected credit losses	158
Ending Balance	624
Other Non-Trade Contractual Arrangements
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	7,504
Provision for expected credit losses	6
Ending Balance	$ 7,510

Inventories (Details)

Inventories (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Inventory Disclosure [Abstract]
Coal	$ 25,084	$ 17,128
Supplies	72,423	71,026
Total Inventories	$ 97,507	$ 88,154

Accounts Receivable Securitiz_2

Accounts Receivable Securitization (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Payments of financing costs			$ 0	$ 2,684,000
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			0.60%
Accounts receivable eligible for securitization	53,510,000		$ 53,510,000		$ 72,125,000
Line of credit facility, fair value of amount outstanding	0		0		0
Letters of credit outstanding, amount	50,831,000		50,831,000		72,087,000
Line of credit facility, remaining borrowing capacity	2,679,000		2,679,000		$ 38,000
Payments of financing costs	$ 347,000	$ 324,000	$ 712,000	$ 737,000
Line of Credit | Accounts Receivable Securitization Facility | Minimum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Line of credit facility, commitment fee percentage			2%
Line of Credit | Accounts Receivable Securitization Facility | Maximum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Line of credit facility, commitment fee percentage			2.50%

Property, Plant and Equipment -

Property, Plant and Equipment - Schedule of Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Property, Plant and Equipment [Line Items]
Total Property, Plant and Equipment	$ 5,655,655	$ 5,552,404
Less: Accumulated Depreciation, Depletion and Amortization	3,744,633	3,649,281
Total Property, Plant and Equipment - Net	1,911,022	1,903,123
Plant and Equipment
Property, Plant and Equipment [Line Items]
Total Property, Plant and Equipment	3,546,964	3,458,655
Coal Properties and Surface Lands
Property, Plant and Equipment [Line Items]
Total Property, Plant and Equipment	909,303	906,343
Airshafts
Property, Plant and Equipment [Line Items]
Total Property, Plant and Equipment	503,843	492,806
Mine Development
Property, Plant and Equipment [Line Items]
Total Property, Plant and Equipment	366,260	366,260
Advance Mining Royalties
Property, Plant and Equipment [Line Items]
Total Property, Plant and Equipment	$ 329,285	$ 328,340

Property, Plant and Equipment_2

Property, Plant and Equipment - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Property, Plant and Equipment [Abstract]
Finance lease, right-of-use asset, before accumulated amortization	$ 32,418		$ 32,418		$ 44,622
Finance lease, right-of-use asset, accumulated amortization	24,716		24,716		$ 31,873
Finance lease, right-of-use asset, amortization	$ 2,525	$ 6,944	$ 5,542	$ 13,845

Other Accrued Liabilities (Deta

Other Accrued Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Other Liabilities Disclosure [Abstract]
Subsidence Liability	$ 106,811	$ 105,322
Accrued Compensation and Benefits	37,617	73,763
Accrued Other Taxes	12,031	12,276
Accrued Interest	6,302	6,283
Deferred Revenue	4,278	9,517
Other	8,506	10,457
Current Portion of Long-Term Liabilities:
Asset Retirement Obligations	33,984	28,571
Postretirement Benefits Other than Pensions	19,267	19,327
Pneumoconiosis Benefits	14,688	15,071
Workers' Compensation	9,577	10,019
Total Other Accrued Liabilities	$ 253,061	$ 290,606

Long-Term Debt - Schedule of Lo

Long-Term Debt - Schedule of Long-term Debt Instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023	Apr. 30, 2021
Debt Instrument [Line Items]
Less: Unamortized Debt Issuance Costs	$ (1,449)	$ (1,686)
Principal amount	183,247	183,520
Less: amounts due in one year	(1,238)	(1,635)
Long-Term Debt	182,009	181,885
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%	9%
Advance Royalty Commitments
Debt Instrument [Line Items]
Long-term debt, gross	$ 5,922	$ 5,922
Weighted average interest rate	8.80%	8.80%
Other Debt Arrangements
Debt Instrument [Line Items]
Long-term debt, gross	$ 909	$ 1,419
Loans Payable | Revolving Credit Facility
Debt Instrument [Line Items]
Finance lease, liability, current	$ 4,774	$ 9,471

Long-Term Debt - Narrative (Det

Long-Term Debt - Narrative (Details) T in Billions	1 Months Ended	3 Months Ended				6 Months Ended
	Apr. 30, 2021 USD ($)	Jun. 30, 2024 USD ($)	Mar. 31, 2024 USD ($)	Jun. 30, 2023 USD ($)	Mar. 31, 2023 USD ($)	Jun. 30, 2024 USD ($) T	Jun. 30, 2023 USD ($)	Dec. 31, 2023 USD ($)	Mar. 28, 2023 USD ($)
Debt Instrument [Line Items]
Number of tons | T						1.3
Assets		$ 2,710,454,000		$ 2,678,349,000		$ 2,710,454,000	$ 2,678,349,000	$ 2,675,003,000
Net Income		58,061,000	$ 101,891,000	167,723,000	$ 230,377,000	159,952,000	398,100,000
Gain (loss) on extinguishment of debt		$ 0		688,000		0	2,063,000
Senior Secured Second Lien Notes due 2025
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	11%
Repayments of debt						$ 0	77,063,000
PEDFA Solid Waste Disposal Revenue Bonds
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	9%	9%				9%		9%
Debt instrument, face amount	$ 75,000,000,000
Debt instrument, term	7 years
Restricted cash		$ 5,402,000				$ 5,402,000		$ 12,177,000
PEDFA Solid Waste Disposal Revenue Bonds Due April 2028 | Restricted Cash
Debt Instrument [Line Items]
Payment of capital construction project, qualified costs		4,006,000		4,627,000		7,041,000	7,871,000
Non-Guarantor Subsidiaries
Debt Instrument [Line Items]
Assets		141,231,000				141,231,000		147,918,000
Accounts receivable, after allowance for credit loss		140,904,000				140,904,000		147,612,000
Net Income		201,000		1,986,000		247,000	4,608,000
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			355,000,000		$ 260,000,000
Line of credit facility, maximum borrowing capacity, option to increase, maximum increase amount				45,000,000			45,000,000
Line of credit facility, maximum borrowing capacity, option to increase, maximum amount				$ 400,000,000			$ 400,000,000
Letters of credit outstanding, amount		128,019,000				128,019,000		111,186,000
Line of credit facility, remaining borrowing capacity		$ 226,981,000				$ 226,981,000		$ 243,814,000
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		0.01				0.01
Debt instrument, covenant, net leverage ratio, actual		(0.15)				(0.15)
Debt instrument, covenant, fixed charge coverage ratio, actual		2.80				2.80
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)			6 Months Ended
	Mar. 07, 2024 USD ($)	Aug. 23, 2017 plaintiff	Jun. 30, 2024 USD ($) 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			$ 10,000,000
United Mine Workers of America 1992 Benefit Plan Litigation | Pending Litigation | Maximum
Loss Contingencies [Line Items]
Annual servicing costs			20,000,000
Indemnification Lawsuit
Loss Contingencies [Line Items]
Loss contingency, damages sought, value	$ 75,000,000
Litigation settlement period	5 years
Loss contingency accrual			$ 0

Commitments and Contingent Li_4

Commitments and Contingent Liabilities - Guarantor Obligations (Details) $ in Thousands	Jun. 30, 2024 USD ($)
Letters of Credit:
Loss Contingencies [Line Items]
Total Amounts Committed	$ 178,850
Less Than 1 Year	157,861
1-3 Years	20,989
3-5 Years	0
Beyond 5 Years	0
Letters of Credit: | Employee-Related
Loss Contingencies [Line Items]
Total Amounts Committed	47,446
Less Than 1 Year	35,131
1-3 Years	12,315
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	131,006
Less Than 1 Year	122,332
1-3 Years	8,674
3-5 Years	0
Beyond 5 Years	0
Surety Bonds:
Loss Contingencies [Line Items]
Total Amounts Committed	612,884
Less Than 1 Year	595,869
1-3 Years	17,015
3-5 Years	0
Beyond 5 Years	0
Surety Bonds: | Employee-Related
Loss Contingencies [Line Items]
Total Amounts Committed	80,210
Less Than 1 Year	80,210
1-3 Years	0
3-5 Years	0
Beyond 5 Years	0
Surety Bonds: | Environmental
Loss Contingencies [Line Items]
Total Amounts Committed	528,603
Less Than 1 Year	511,588
1-3 Years	17,015
3-5 Years	0
Beyond 5 Years	0
Surety Bonds: | Other
Loss Contingencies [Line Items]
Total Amounts Committed	4,071
Less Than 1 Year	4,071
1-3 Years	0
3-5 Years	0
Beyond 5 Years	$ 0

Fair Value of Financial instr_3

Fair Value of Financial instruments - Schedule of Fair Value of Financial Instruments (Details) - U.S. Treasury Securities - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	$ 83,344	$ 81,932
Fair Value, Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	83,344	81,932
Fair Value, Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	0	0
Fair Value, Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	$ 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	Jun. 30, 2024	Dec. 31, 2023
Carrying Amount
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-Term Debt (Excluding Debt Issuance Costs)	$ 184,696	$ 185,206
Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-Term Debt (Excluding Debt Issuance Costs)	$ 198,866	$ 199,591

Segment Information - Narrative

Segment Information - Narrative (Details)	6 Months Ended
	Jun. 30, 2024 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		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Segment Reporting Information [Line Items]
Total Revenue from Contracts with Customers	$ 490,720	$ 654,023	$ 1,037,409	$ 1,331,620
Adjusted EBITDA	124,538	275,950	306,291	622,250
Segment Assets	2,710,454	2,678,349	2,710,454	2,678,349	$ 2,675,003
Depreciation, Depletion and Amortization	54,847	64,528	111,844	124,079
Capital Expenditures	55,408	42,325	97,760	76,082
Coal Revenue
Segment Reporting Information [Line Items]
Total Revenue from Contracts with Customers	409,322	541,099	857,249	1,124,478
Terminal Revenue
Segment Reporting Information [Line Items]
Total Revenue from Contracts with Customers	12,020	31,368	36,548	58,079
Freight Revenue
Segment Reporting Information [Line Items]
Total Revenue from Contracts with Customers	65,640	81,556	135,482	149,063
Other Revenue
Segment Reporting Information [Line Items]
Total Revenue from Contracts with Customers	3,738		8,130
Other, Corporate and Eliminations
Segment Reporting Information [Line Items]
Total Revenue from Contracts with Customers	30,808	23,597	69,882	46,809
Adjusted EBITDA	(19,076)	(17,971)	(23,496)	(23,250)
Segment Assets	959,546	913,905	959,546	913,905
Depreciation, Depletion and Amortization	9,939	13,084	17,426	20,108
Capital Expenditures	4,628	3,706	8,959	10,081
Other, Corporate and Eliminations | Coal Revenue
Segment Reporting Information [Line Items]
Total Revenue from Contracts with Customers	24,880	19,923	56,620	39,965
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	2,190	3,674	5,132	6,844
Other, Corporate and Eliminations | Other Revenue
Segment Reporting Information [Line Items]
Total Revenue from Contracts with Customers	3,738		8,130
PAMC | Operating Segments
Segment Reporting Information [Line Items]
Total Revenue from Contracts with Customers	447,892	599,058	930,979	1,226,732
Adjusted EBITDA	138,446	270,065	307,779	601,029
Segment Assets	1,665,463	1,682,118	1,665,463	1,682,118
Depreciation, Depletion and Amortization	43,675	50,268	91,944	101,639
Capital Expenditures	47,043	37,495	84,001	64,302
PAMC | Operating Segments | Coal Revenue
Segment Reporting Information [Line Items]
Total Revenue from Contracts with Customers	384,442	521,176	800,629	1,084,513
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	63,450	77,882	130,350	142,219
PAMC | Operating Segments | Other Revenue
Segment Reporting Information [Line Items]
Total Revenue from Contracts with Customers	0		0
CONSOL Marine Terminal | Operating Segments
Segment Reporting Information [Line Items]
Total Revenue from Contracts with Customers	12,020	31,368	36,548	58,079
Adjusted EBITDA	5,168	23,856	22,008	44,471
Segment Assets	85,445	82,326	85,445	82,326
Depreciation, Depletion and Amortization	1,233	1,176	2,474	2,332
Capital Expenditures	3,737	1,124	4,800	1,699
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	12,020	31,368	36,548	58,079
CONSOL Marine Terminal | Operating Segments | Freight Revenue
Segment Reporting Information [Line Items]
Total Revenue from Contracts with Customers	0	$ 0	0	$ 0
CONSOL Marine Terminal | Operating Segments | Other Revenue
Segment Reporting Information [Line Items]
Total Revenue from Contracts with Customers	$ 0		$ 0

Segment Information - Schedul_2

Segment Information - Schedule of Revenue by Major Customers by Reporting Segments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Segment Reporting Information [Line Items]
Total Revenue from Contracts with Customers	$ 490,720	$ 654,023	$ 1,037,409	$ 1,331,620
Revenue Benchmark | Customer Concentration Risk | Customer A
Segment Reporting Information [Line Items]
Total Revenue from Contracts with Customers	$ 60,982		107,468
Revenue Benchmark | Customer Concentration Risk | Customer B
Segment Reporting Information [Line Items]
Total Revenue from Contracts with Customers			109,828	151,404
Revenue Benchmark | Customer Concentration Risk | Customer C
Segment Reporting Information [Line Items]
Total Revenue from Contracts with Customers		67,197	$ 108,921	135,412
Revenue Benchmark | Customer Concentration Risk | Customer D
Segment Reporting Information [Line Items]
Total Revenue from Contracts with Customers		$ 70,725		$ 145,034

Segment Information - Schedul_3

Segment Information - Schedule of Adjusted EBITDA (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Segment Reporting Information [Line Items]
Net Income	$ 58,061	$ 167,723	$ 159,952	$ 398,100
Income Tax Expense	9,027	37,574	25,870	79,167
Interest Expense	4,993	7,155	10,399	17,434
Interest Income	(4,627)	(3,711)	(9,129)	(5,378)
Depreciation, Depletion and Amortization	54,847	64,528	111,844	124,079
Stock-Based Compensation	2,237	1,993	7,355	6,785
Loss on Debt Extinguishment	0	688	0	2,063
Adjusted EBITDA	124,538	275,950	306,291	622,250
Other, Corporate and Eliminations
Segment Reporting Information [Line Items]
Net Income	(38,555)	(72,007)	(68,666)	(135,394)
Income Tax Expense	9,027	37,574	25,870	79,167
Interest Expense	3,475	5,629	7,360	14,382
Interest Income	(3,307)	(3,198)	(6,516)	(4,457)
Depreciation, Depletion and Amortization	9,939	13,084	17,426	20,108
Stock-Based Compensation	345	259	1,030	881
Loss on Debt Extinguishment		688		2,063
Adjusted EBITDA	(19,076)	(17,971)	(23,496)	(23,250)
PAMC | Operating Segments
Segment Reporting Information [Line Items]
Net Income	94,295	218,636	212,466	494,611
Income Tax Expense	0	0	0	0
Interest Expense	0	0	0	0
Interest Income	(1,320)	(513)	(2,613)	(921)
Depreciation, Depletion and Amortization	43,675	50,268	91,944	101,639
Stock-Based Compensation	1,796	1,674	5,982	5,700
Loss on Debt Extinguishment		0		0
Adjusted EBITDA	138,446	270,065	307,779	601,029
CONSOL Marine Terminal | Operating Segments
Segment Reporting Information [Line Items]
Net Income	2,321	21,094	16,152	38,883
Income Tax Expense	0	0	0	0
Interest Expense	1,518	1,526	3,039	3,052
Interest Income	0	0	0	0
Depreciation, Depletion and Amortization	1,233	1,176	2,474	2,332
Stock-Based Compensation	96	60	343	204
Loss on Debt Extinguishment		0		0
Adjusted EBITDA	$ 5,168	$ 23,856	$ 22,008	$ 44,471

Stock and Debt Repurchases - Na

Stock and Debt Repurchases - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Jun. 30, 2023	Apr. 30, 2023	Apr. 30, 2021
Class of Stock [Line Items]
Aggregate authorized amount							$ 1,000,000
Repurchases of common stock (in shares)	132,063	615,288	1,225,134	1,207,409	747,351	2,432,543
Treasury stock acquired, average cost per share (in dollars per share)					$ 89.49	$ 58.69
Senior Secured Second Lien Notes due 2025
Class of Stock [Line Items]
Debt instrument, interest rate, stated percentage								11%