v3.26.1
Revenue from Contracts with Customers
6 Months Ended
Jun. 30, 2026
Revenue from Contract with Customer [Abstract]  
Revenue from Contracts with Customer

16.REVENUE FROM CONTRACTS WITH CUSTOMERS

The following table illustrates the disaggregation of our revenues by type, including a reconciliation to our segment presentation as presented in Note 20 – Segment Information.

  ​ ​ ​

Coal Operations

Royalties

Other,

Illinois

  ​ ​ ​

  ​ ​ ​

  ​ ​ ​

Corporate and

  ​ ​ ​

  ​ ​ ​

Basin

  ​ ​ ​

Appalachia

  ​ ​ ​

Oil & Gas

  ​ ​ ​

Coal

  ​ ​ ​

Elimination

  ​ ​ ​

Consolidated

(in thousands)

Three Months Ended June 30, 2026

Coal sales

$

330,272

$

139,272

$

$

$

$

469,544

Oil & gas royalties

46,293

46,293

Coal royalties

22,723

(22,723)

Transportation revenues

6,083

1,427

7,510

Other revenues

3,117

11,198

234

13,664

28,213

Total revenues

$

339,472

$

151,897

$

46,527

$

22,723

$

(9,059)

$

551,560

Three Months Ended June 30, 2025

 

Coal sales

$

343,841

$

141,628

$

$

$

$

485,469

Oil & gas royalties

35,473

35,473

Coal royalties

17,612

(17,612)

Transportation revenues

4,829

3,729

8,558

Other revenues

1,577

626

28

15,732

17,963

Total revenues

$

350,247

$

145,983

$

35,501

$

17,612

$

(1,880)

$

547,463

Six Months Ended June 30, 2026

Coal sales

$

640,027

$

272,799

$

$

$

$

912,826

Oil & gas royalties

87,634

87,634

Coal royalties

41,823

(41,823)

Transportation revenues

12,260

3,893

16,153

Other revenues

6,147

15,308

677

291

28,541

50,964

Total revenues

$

658,434

$

292,000

$

88,311

$

42,114

$

(13,282)

$

1,067,577

Six Months Ended June 30, 2025

 

Coal sales

$

677,075

$

276,905

$

$

$

$

953,980

Oil & gas royalties

71,557

71,557

Coal royalties

33,407

(33,407)

Transportation revenues

11,692

7,066

18,758

Other revenues

4,475

1,508

857

36,796

43,636

Total revenues

$

693,242

$

285,479

$

72,414

$

33,407

$

3,389

$

1,087,931

The following table illustrates the beginning and ending balances of our trade receivables:

  ​ ​ ​

Three Months Ended

Six Months Ended

June 30, 

June 30, 

2026

  ​ ​ ​

2025

  ​ ​ ​

2026

  ​ ​ ​

2025

 

(in thousands)

Beginning balance

$

166,573

$

177,467

$

129,686

$

166,829

 

Ending balance

$

200,779

$

177,659

$

200,779

$

177,659

The following table illustrates the amount of our transaction price for all coal supply contracts allocated to performance obligations that are unsatisfied or partially unsatisfied as of June 30, 2026 and disaggregated by segment and contract duration.

2029 and

  ​ ​ ​

2026

  ​ ​ ​

2027

  ​ ​ ​

2028

  ​ ​ ​

Thereafter

  ​ ​ ​

Total

(in thousands)

Illinois Basin Coal Operations coal revenues

$

713,153

$

1,008,907

$

549,623

$

405,380

$

2,677,063

Appalachia Coal Operations coal revenues

250,072

380,968

289,856

37,800

958,696

Total coal revenues

$

963,225

$

1,389,875

$

839,479

$

443,180

$

3,635,759