Who owns Black Thunder?
Black Thunder is owned by Core Natural Resources (the United States, NYSE: CNR).[1]
Evidence: Core Natural Resources, Inc. Annual Report on Form 10-K filed 2026-02-17, SEC EDGAR, 17 February 2026. Verified from filings; last checked .
Key facts
- Current owner
- Core Natural Resources, Inc. verified
- Owner HQ
- 🇺🇸 United States, Canonsburg
- Origin
- 🇺🇸 United States
- Category
- Energy › Power & utilities › Coal
- Parent ticker
- NYSE: CNR
- Last verified
- · 1 sources
About Black Thunder
Black Thunder is a sub-bituminous thermal coal surface mining complex in Campbell County, Wyoming, per Core's 2025 Form 10-K. It has four active pit areas and two loadout facilities on about 35,300 acres.
What Core Natural Resources's annual report says about Black Thunder
Sentences about Black Thunder from Core Natural Resources's latest annual filing[1], copied word for word.
Black Thunder : The Black Thunder surface mining complex, consisting of four active pit areas and two active loadout facilities, is located on approximately 35,300 acres in Campbell County, Wyoming and extracts thermal coal from the Upper Wyodak and Main Wyodak seams.
A significant portion of the coal reserves at Black Thunder are controlled through federal and state leases.
The Black Thunder Surface Mine is located in Campbell County, Wyoming, approximately 11 miles east of the town of Wright at approximately 43 42'07.64" N latitude and 105 17'28.09" W longitude.
How often Core Natural Resources names Black Thunder in its annual report
A plain count of the times the name appears in the text of each annual report, not counting the start of a sentence. A brand that an owner writes about more is usually one it treats as central. The brand is named more often than it was three years earlier.
Ownership timeline of Black Thunder
- Current owner Core Natural Resources [1] verified
Where Black Thunder sits in Core Natural Resources
Controlling ownership as of . Brands grouped under the entity that owns them; large groups are collapsed.
Open the full Core Natural Resources ownership tree →
See the full Core Natural Resources brand portfolio (4) →
Other brands owned by Core Natural Resources
Core Natural Resources controls 4 brands on Brandtree, 4 of them in energy.
Also in energy
Other brands in coal, and who owns them
Core Natural Resources has more brands in coal on Brandtree than any other owner: 4 of 18.
| Brand | Owner | Owner based in |
|---|---|---|
| Centurion | Peabody | 🇺🇸 United States |
| River View | Alliance Resource Partners | 🇺🇸 United States |
| Marfork | Alpha Metallurgical Resources | 🇺🇸 United States |
| Berwind | Ramaco | 🇺🇸 United States |
| Blue Creek | Warrior Met Coal | 🇺🇸 United States |
| Sunrise Coal | Hallador | 🇺🇸 United States |
| North American Coal | NACCO | 🇺🇸 United States |
| North Antelope Rochelle | Peabody | 🇺🇸 United States |
About the owner: Core Natural Resources
Core Natural Resources is a publicly listed company headquartered in Canonsburg, United States. Brandtree records 4 brands under its control, and it is listed as NYSE: CNR.
Core Natural Resources is the former CONSOL Energy. Its 2025 Form 10-K says it completed an all-stock merger with Arch Resources on 14 January 2025, was renamed Core Natural Resources and began trading as CNR on 15 January 2025. Arch is now a wholly owned subsidiary. The company produces metallurgical and thermal coal, mainly in the Appalachian Basin, and has marine export terminal interests.
Core Natural Resources: full profile, brands and acquisition history →
🇺🇸 Black Thunder and other American brands
Brandtree records a controlling owner for 2,399 brands that began in the United States. 461 of them (19%) are now controlled by a company headquartered in another country; Black Thunder is not one of them.
- AES Ohio — AES 🇺🇸
- Agway Energy Services — Suburban Propane 🇺🇸
- Alabama Power — Southern Company 🇺🇸
- AmeriGas — UGI 🇺🇸
- American Transmission Company — WEC Energy Group 🇺🇸
- Aris Water Solutions — Western Midstream 🇺🇸
Frequently asked questions
Who is the parent company of Black Thunder?
The parent company of Black Thunder is Core Natural Resources, a publicly listed company headquartered in the United States.
Is Black Thunder American?
Yes. Black Thunder originated in the United States and its owner, Core Natural Resources, is also headquartered in the United States.
Is Black Thunder still owned by Core Natural Resources?
Yes. As of 9 October 2026, Black Thunder is still owned by Core Natural Resources. The ownership record was last checked against primary sources on that date.
Sources (1) & corrections
Last verified . Every ownership fact above is backed by one of these primary documents. Numbers in brackets in the text refer to this list.
- [1] Core Natural Resources, Inc. Annual Report on Form 10-K filed 2026-02-17 — SEC EDGAR, SEC Form 10-K, published 17 February 2026; retrieved 5 October 2026.
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