Arch Coal was a St. Louis-based producer and marketer of metallurgical and thermal coal, renamed Arch Resources in 2020. In January 2025 Arch Resources merged with CONSOL Energy in a merger of equals to form Core Natural Resources, Inc. (NYSE: CNR), headquartered in Canonsburg, Pennsylvania. The combined company operates the Pennsylvania Mining Complex, Leer, Leer South, West Elk, Black Thunder, and other mines across six U.S. states with 5,000+ employees, and holds stakes in East Coast marine export terminals. Core Natural Resources does not publish a public developer API. Its external digital surface is a corporate website at corenaturalresources.com plus a separate investor relations portal, both serving HTML and PDF only — the investor portal's /rss and /feed paths were probed on 2026-07-25 and every one returns HTML, not XML. Machine-readable company data is available only through third-party channels, namely the SEC's own EDGAR APIs.
Arch Coal publishes 1 API on the APIs.io network. Tagged areas include Mining, Coal, Metallurgical Coal, Thermal Coal, and Energy.
Arch Coal’s developer surface includes developer portal, product news, and 11 more developer resources.
Regulatory Posture applies to this provider. Its tags matched the
Energy & Utilities regime, so
Regulatory Posture carries 15 points of the composite.
If this regime is wrong for your business, say so on your
provider repo — the
applicability map is public and we will correct it.
Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for
this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero:
never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and
several others — scorable at all.
The six quality facets above are damped to 85 points between them,
because the conditional facet above carries the other
15. That is why each facet's contribution is shown against a damped
maximum: raising a quality facet moves the composite by 85% of its nominal
weight, not 100%. The full arithmetic is at apis.io/rating/.
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/arch-coal: open an issue to ask a question, or submit a pull request to add artifacts.
Submit an artifact on GitHub — free →Manage your own listing — the Influence plan, $499/mo →
Machine-readable filing data for Core Natural Resources is available from the U.S. Securities and Exchange Commission, not from the company. The SEC EDGAR submissions API return...
Low-Vol (Beckley, Itmann), High-Vol A (Leer, Leer South), and High-Vol B (Mountain Laurel) metallurgical coals for blast furnace steelmaking — roughly 12 million tons annually.
High Calorific Value Thermal Coal
High CV thermal coal from the Pennsylvania Mining Complex and West Elk mine for power generation, cement, and industrial use — roughly 30 million tons annually.
Powder River Basin Thermal Coal
PRB sub-bituminous coal from Black Thunder and Coal Creek mines in Wyoming.
Marine Export Terminals
Ownership stakes in East Coast marine export terminals, with roughly 25 million tons of owned annual export capacity.
CONSOL Innovations
Advanced materials and critical mineral extraction research turning coal-based carbon into products for aerospace and other industries.
SEC Filings and Investor Reporting
Quarterly earnings, production and sales volume reporting, and SEC filings published as HTML and PDF through the investor relations portal and EDGAR.
aid: arch-coal
name: Arch Coal
description: 'Arch Coal was a St. Louis-based producer and marketer of metallurgical and thermal coal, renamed Arch Resources
in 2020. In January 2025 Arch Resources merged with CONSOL Energy in a merger of equals to form Core Natural Resources,
Inc. (NYSE: CNR), headquartered in Canonsburg, Pennsylvania. The combined company operates the Pennsylvania Mining Complex,
Leer, Leer South, West Elk, Black Thunder, and other mines across six U.S. states with 5,000+ employees, and holds stakes
in East Coast marine export terminals. Core Natural Resources does not publish a public developer API. Its external digital
surface is a corporate website at corenaturalresources.com plus a separate investor relations portal, both serving HTML
and PDF only — the investor portal''s /rss and /feed paths were probed on 2026-07-25 and every one returns HTML, not XML.
Machine-readable company data is available only through third-party channels, namely the SEC''s own EDGAR APIs.'
type: Index
deliveryModel:
model: saas
open_source: false
commercial: true
callable_host: false
label: Hosted service · you call their endpoint
confidence: medium
source:
- pricing
generated: '2026-08-28'
method: derived
accessModel:
pricing: unknown
onboarding: unknown
trial: false
try_now: false
public: false
label: No public API program
confidence: high
source:
- plans
generated: '2026-07-25'
method: researched
position: Consuming
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/arch-coal.png
url: https://raw.githubusercontent.com/api-evangelist/arch-coal/refs/heads/main/apis.yml
x-api-posture: no-product-api
x-api-posture-basis: observed
created: '2026-03-23'
modified: '2026-07-25'
specificationVersion: '0.23'
kind: company
tags:
- Mining
- Coal
- Metallurgical Coal
- Thermal Coal
- Energy
- Core Natural Resources
- Investor Relations
- Fortune 500
apis:
- aid: arch-coal:sec-edgar-filings
name: SEC EDGAR Filings (Core Natural Resources, CIK 1710366)
description: Machine-readable filing data for Core Natural Resources is available from the U.S. Securities and Exchange
Commission, not from the company. The SEC EDGAR submissions API returns the full filing history for CIK 0001710366 (formerly
CONSOL Energy Inc., renamed Core Natural Resources in January 2025) as JSON. This is a third-party government API listed
here because it is the only real programmatic access to this company's data.
humanURL: https://www.sec.gov/search-filings/edgar-application-programming-interfaces
tags:
- Filings
- SEC EDGAR
- Third Party
tags_raw:
- Filings
- SEC EDGAR
- Third-Party
properties:
- type: Documentation
url: https://www.sec.gov/search-filings/edgar-application-programming-interfaces
- type: APIReference
url: https://data.sec.gov/submissions/CIK0001710366.json
x-evidence:
verified: '2026-07-25'
method: fetched documentation and called the endpoint
documentation: The SEC's EDGAR APIs page documents RESTful JSON APIs on data.sec.gov — https://data.sec.gov/submissions/CIK##########.json
plus the XBRL companyconcept, companyfacts, and frames APIs. No authentication or API key required; a declared User-Agent
and a 10-request-per-second ceiling are the stated fair-access terms.
endpoint_check: GET https://data.sec.gov/submissions/CIK0001710366.json returned HTTP 200 with JSON naming "Core Natural
Resources, Inc.", ticker CNR, and the former name "CONSOL Energy Inc." through 2025-01-10.
common:
- type: Website
url: https://corenaturalresources.com/
- type: Portal
url: https://corenaturalresources.com/
- type: Legacy Website
url: https://archresources.com/
- type: Investors
url: https://corenaturalresources.com/investors/
- type: News
url: https://corenaturalresources.com/news-media/
- type: Sustainability
url: https://corenaturalresources.com/sustainability/
- type: Suppliers
url: https://corenaturalresources.com/suppliers/
- type: Careers
url: https://corenaturalresources.com/careers/
- type: Contact
url: https://corenaturalresources.com/contact-us/
- type: PrivacyPolicy
url: https://corenaturalresources.com/privacy-policy/
- type: TermsOfService
url: https://corenaturalresources.com/arch-terms-and-conditions/
- type: LinkedIn
url: https://www.linkedin.com/company/core-natural-resources
- type: DomainSecurity
url: security/arch-coal-domain-security.yml
- type: Features
data:
- name: Metallurgical Coal
description: Low-Vol (Beckley, Itmann), High-Vol A (Leer, Leer South), and High-Vol B (Mountain Laurel) metallurgical
coals for blast furnace steelmaking — roughly 12 million tons annually.
- name: High Calorific Value Thermal Coal
description: High CV thermal coal from the Pennsylvania Mining Complex and West Elk mine for power generation, cement,
and industrial use — roughly 30 million tons annually.
- name: Powder River Basin Thermal Coal
description: PRB sub-bituminous coal from Black Thunder and Coal Creek mines in Wyoming.
- name: Marine Export Terminals
description: Ownership stakes in East Coast marine export terminals, with roughly 25 million tons of owned annual export
capacity.
- name: CONSOL Innovations
description: Advanced materials and critical mineral extraction research turning coal-based carbon into products for aerospace
and other industries.
- name: SEC Filings and Investor Reporting
description: Quarterly earnings, production and sales volume reporting, and SEC filings published as HTML and PDF through
the investor relations portal and EDGAR.
- type: UseCases
data:
- name: Investment Research
description: Analyze Core Natural Resources (NYSE:CNR) financial performance, production volumes, and market position
through EDGAR filings and investor materials.
- name: Merger and Lineage Tracking
description: Follow the Arch Coal → Arch Resources → Core Natural Resources lineage, including the CONSOL Energy merger
of equals completed January 2025.
- name: ESG and Safety Reporting
description: Access environmental, safety, and governance disclosures published through the corporate sustainability section.
- name: Supply Chain and Procurement
description: Steel producers, utilities, and suppliers reference product specifications, terms and conditions, and the
Supplier Code of Conduct.
- name: Commodity Market Analysis
description: Track metallurgical and thermal coal production, export capacity, and sales volumes for commodity market
research.
- type: Integrations
data:
- name: SEC EDGAR
description: All filings for CIK 0001710366 are available through EDGAR and the SEC's public JSON APIs at data.sec.gov.
- name: NYSE
description: Shares trade on the New York Stock Exchange under the ticker CNR; market data flows through standard exchange
and market data providers.
maintainers:
- FN: Kin Lane
email: kin@apievangelist.com
Discovery needs no key. Ratings and market analysis are Pro.
Get an API key
Free tier, no form to fill in. Signing in shares your email address with us — we
store it to create your key and to recognise you if you sign in with another
provider. See our Privacy Policy and
Terms.
Kin Score
How this is scored →