Here are the 10-K annual reports from Core Natural Resources, Inc. (CNR) in our archive since June 2025, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A 10-K covers the audited annual report, with the full financial statements, so if you follow CNR and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full CNR filings page.
Core Natural Resources, Inc. filed Amendment No. 1 to its Annual Report for the year ended December 31, 2025. The sole purpose is to amend Item 15 and Exhibit 96.1 by filing an updated Technical Report Summary for the Leer Complex in West Virginia.
The company explains that the original Technical Report Summary contained incorrect images for Figure 6.3-1 (Stratigraphic Column) and Figure 7.5-1 (Drillhole Collar Locations, Map View). The underlying text and conclusions of the report are unchanged, and no new financial statements are included. As of June 30, 2025, the aggregate value of common stock held by non-affiliates was approximately $3,514,239,816, and shares of common stock outstanding totaled 50,979,544 as of January 30, 2026.
Core Natural Resources, Inc. reports a transformed business following its January 14, 2025 all‑stock merger of equals between CONSOL Energy and Arch Resources and subsequent rebranding to Core Natural Resources, trading under ticker CNR.
For 2025, the company generated $4,165 million in revenue with total coal production of 87.8 million tons, including 30.5 million tons of high calorific value thermal coal, 8.4 million tons of metallurgical coal and 48.9 million tons from Powder River Basin operations. High‑CV thermal realizations averaged $60.34 per ton, metallurgical coal $102.36 per ton and PRB coal $14.46 per ton.
The company highlights large, long‑life reserves, including 529.0 million tons at the Pennsylvania Mining Complex, 170.2 million tons at the Leer metallurgical complex and 331.5 million tons at Black Thunder, plus extensive additional resources. Management emphasizes safety performance, strong contracted domestic thermal positions, expanded export and metallurgical platforms, and disciplined capital allocation, including a $600 million revolving credit facility and long‑dated tax‑exempt bonds, to support cash generation and potential shareholder returns.