v3.26.3
Segment Information (Tables)
 9 Months Ended
Sep. 30, 2026
Segment Reporting [Abstract]  
Reconciliation of Assets from Division to Consolidated
The following table presents total assets at the division level:
September 30, 2026December 31, 2025
(Dollars in millions)
Seaborne$2,375.0 $2,543.4 
U.S. Thermal1,300.9 1,301.7 
Corporate and Other1,696.1 1,962.1 
Total assets$5,372.0 $5,807.2 
Reportable Segment Results
Reportable segment results were as follows:
Three Months Ended September 30, 2026
Seaborne ThermalSeaborne MetallurgicalPowder River BasinOther U.S. ThermalReportable Segment Totals
(Dollars in millions)
Revenue$241.6 $366.0 $268.1 $206.1 $1,081.8 
Less Significant Segment Expenses:
Labor costs35.8 75.0 55.8 48.9 
Repair costs30.7 76.2 28.2 31.9 
Outside services26.7 110.9 34.8 35.3 
Commodities expense31.7 24.0 60.3 30.0 
Sales related costs48.3 86.2 58.2 14.7 
Other expenses (1)
2.9 (11.5)15.8 19.8 
Adjusted EBITDA65.5 5.2 15.0 25.5 111.2 
Additions to property, plant, equipment and mine development7.1 36.7 9.2 4.7 57.7 
Three Months Ended September 30, 2025
Seaborne ThermalSeaborne MetallurgicalPowder River BasinOther U.S. ThermalReportable Segment Totals
(Dollars in millions)
Revenue$242.7 $258.9 $301.4 $192.0 $995.0 
Less Significant Segment Expenses:
Labor costs35.8 62.4 56.5 54.3 
Repair costs29.3 48.5 38.8 40.5 
Outside services31.2 100.4 35.0 40.8 
Commodities expense20.6 17.1 42.3 19.2 
Sales related costs54.0 56.1 66.2 11.5 
Other expenses (1)
30.8 (53.4)10.9 18.8 
Adjusted EBITDA41.0 27.8 51.7 6.9 127.4 
Additions to property, plant, equipment and mine development8.2 87.8 11.5 7.7 115.2 
Nine Months Ended September 30, 2026
Seaborne ThermalSeaborne MetallurgicalPowder River BasinOther U.S. ThermalReportable Segment Totals
(Dollars in millions)
Revenue$669.7 $1,007.3 $781.4 $553.8 $3,012.2 
Less Significant Segment Expenses:
Labor costs108.6 224.7 171.8 148.9 
Repair costs91.1 210.7 93.7 93.7 
Outside services81.7 326.1 103.3 104.1 
Commodities expense89.8 65.7 164.0 78.4 
Sales related costs130.5 248.3 170.6 38.8 
Other expenses (1)
1.9 (49.4)46.4 (0.3)
Adjusted EBITDA166.1 (18.8)31.6 90.2 269.1 
Additions to property, plant, equipment and mine development25.3 122.4 35.0 15.4 198.1 
Nine Months Ended September 30, 2025
Seaborne ThermalSeaborne MetallurgicalPowder River BasinOther U.S. ThermalReportable Segment Totals
(Dollars in millions)
Revenue$702.9 $731.2 $852.7 $515.8 $2,802.6 
Less Significant Segment Expenses:
Labor costs108.6 178.7 159.2 153.4 
Repair costs83.1 136.9 102.9 114.2 
Outside services84.9 258.3 94.9 114.2 
Commodities expense59.6 43.1 116.8 56.4 
Sales related costs153.4 168.8 215.4 30.9 
Other expenses (1)
54.6 (86.4)32.5 (6.6)
Adjusted EBITDA158.7 31.8 131.0 53.3 374.8 
Additions to property, plant, equipment and mine development26.3 213.9 20.9 17.7 278.8 
(1)    Other expenses primarily include lease expense, non-sales related taxes, insurance expense and joint facility charges; offset by credits related to the capitalization of costs to the condensed consolidated balance sheet.
Reconciliation of Segment Totals
A reconciliation of reportable segment totals follows:
Three Months Ended September 30,Nine Months Ended September 30,
2026202520262025
(Dollars in millions)
Revenue from reportable segments$1,081.8 $995.0 $3,012.2 $2,802.6 
Reconciling items
Corporate and Other14.5 17.1 60.6 36.6 
Revenue$1,096.3 $1,012.1 $3,072.8 $2,839.2 
Adjusted EBITDA from reportable segments$111.2 $127.4 $269.1 $374.8 
Reconciling items
Corporate and Other (1)
(13.7)(27.9)(65.1)(38.0)
Depreciation, depletion and amortization(97.6)(100.0)(314.6)(285.5)
Asset retirement obligation expenses(13.7)(13.9)(41.1)(41.3)
Restructuring charges(1.0)(4.0)(4.4)(9.2)
Costs related to terminated acquisition(3.9)(54.0)(9.2)(75.2)
Changes in amortization of basis difference related to equity affiliates0.5 0.5 1.8 1.9 
Other operating loss(12.9)— (12.9)— 
Interest expense, net of capitalized interest(18.6)(10.0)(42.0)(32.6)
Induced conversion expense(3.3)— (20.5)— 
Change in fair value of bifurcated conversion option7.2 — 7.2 — 
Interest income8.5 13.9 33.7 43.1 
Net mark-to-market adjustment on actuarially determined liabilities3.3 — 3.3 — 
Unrealized gains (losses) on foreign currency option contracts0.8 (2.3)(2.8)6.1 
Take-or-pay contract-based intangible recognition— 0.3 — 0.8 
Loss from continuing operations before income taxes$(33.2)$(70.0)$(197.5)$(55.1)
Additions to property, plant, equipment and mine development from reportable segments$57.7 $115.2 $198.1 $278.8 
Reconciling items
Corporate and Other2.1 1.0 5.5 2.0 
Additions to property, plant, equipment and mine development$59.8 $116.2 $203.6 $280.8 
(1)    Corporate and Other includes selling and administrative expenses, results from equity method investments, trading and brokerage activities, minimum charges on certain transportation-related contracts, the closure of inactive mining sites, the impact of foreign currency remeasurement and certain commercial matters.