Arch Coal website screenshot

Arch Coal

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.

20.2/100 emerging ▬ flat Agent 3/100 human only Full breakdown ↓
scored 2026-07-28 · rubric v0.6
1 APIs 6 Features 5 Use Cases
MiningCoalMetallurgical CoalThermal CoalEnergyCore Natural ResourcesInvestor RelationsFortune 500

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6
Composite quality — 20.2/100 · emerging
Contract Quality 0.0 / 25
Developer Ergonomics 1.7 / 20
Commercial Clarity 10.0 / 20
Operational Transparency 2.7 / 13
Governance 0.0 / 12
Discoverability 5.9 / 10
Agent readiness — 3/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 10
MCP Server 0 / 12
Machine-Readable Auth 0 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. 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. Want it done for you? Prioritized profiling — $2,500 →

APIs 1

Individual APIs this provider publishes, each with its own machine-readable definition.

SEC EDGAR Filings (Core Natural Resources, CIK 1710366)

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...

Pricing Plans 1

Published pricing tiers and plan structures.

Rate Limits 1

Documented rate limits and quota policies.

Arch Coal Rate Limits

1 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Features 6

Notable capabilities this provider offers.

Metallurgical Coal

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.

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Arch Coal Domain Security

HSTS · DMARC

SECURITY

Use Cases 5

What developers build with this provider.

Investment Research

Analyze Core Natural Resources (NYSE:CNR) financial performance, production volumes, and market position through EDGAR filings and investor materials.

Merger and Lineage Tracking

Follow the Arch Coal → Arch Resources → Core Natural Resources lineage, including the CONSOL Energy merger of equals completed January 2025.

ESG and Safety Reporting

Access environmental, safety, and governance disclosures published through the corporate sustainability section.

Supply Chain and Procurement

Steel producers, utilities, and suppliers reference product specifications, terms and conditions, and the Supplier Code of Conduct.

Commodity Market Analysis

Track metallurgical and thermal coal production, export capacity, and sales volumes for commodity market research.

Integrations 2

Pre-built integrations with other platforms and tools.

SEC EDGAR

All filings for CIK 0001710366 are available through EDGAR and the SEC's public JSON APIs at data.sec.gov.

NYSE

Shares trade on the New York Stock Exchange under the ticker CNR; market data flows through standard exchange and market data providers.

Press 5

Recent news and press coverage referencing this provider.

About Core Natural Resources

2026-05-25

Press Releases

2026-05-25

Arch Resources winding down massive US coal mine as ...

2026-05-25

Q4 2018 Arch Coal Inc Earnings Call Transcript

2026-05-25

Despite a strong quarter for its Powder River Basin ...

2026-05-25

Resources

Get Started 1

Portal, sign-up, and the first successful call

Access & Security 1

Authentication, authorization, and security posture

Operate 1

Status, limits, changes, and where to get help

Commercial 2

Pricing, plans, and the legal terms of use

Company 6

The organization behind the API

Other 2

Properties that don't map to a standard resource type

Source (apis.yml)

apis.yml Raw ↑
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
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: Consumer
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
created: '2026-03-23'
modified: '2026-07-25'
specificationVersion: '0.19'
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
  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