Southwestern Energy

Southwestern Energy Company (SWN) is one of the largest producers of natural gas in the United States, with exploration and production operations focused primarily on the Marcellus and Haynesville shales. In October 2024, Southwestern Energy completed a merger with Expand Energy Corporation (formerly Chesapeake Energy), though the SWN brand and investor relations infrastructure continues to operate under swn.com. As a Fortune 500 energy company, SWN focuses on responsible development of natural gas resources in the Appalachian Basin and Gulf Coast regions.

Southwestern Energy publishes 2 APIs on the APIs.io network. Tagged areas include Fortune 500, Natural Gas, Energy, and Oil and Gas.

The Southwestern Energy catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

Southwestern Energy’s developer surface includes engineering blog and 8 more developer resources.

🌐 Visit website 📡 Source on GitHub

16.8/100 emerging ▬ flat Agent 3/100 human only Full breakdown ↓
scored 2026-08-25 · rubric v0.14.0

AccessEnterprise

2 APIs

Fortune 500 Natural Gas Energy Oil and Gas

Kin Score

Kin Score How this is scored →
scored 2026-08-25 · rubric v0.14.0

Composite quality — 16.8/100 · emerging

Contract Quality 4.8 / 21

Developer Ergonomics 0.4 / 17

Access Clarity 2.2 / 17

Operational Transparency 0.6 / 11

Contract Governance 2.6 / 10

Discoverability 4.3 / 9

Regulatory Posture 2.2 / 15

Agent readiness — 3/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

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

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Surface 0 / 5

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.

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/. This rating is computed from github.com/api-evangelist/southwestern-energy: 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 2

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

Rate Limits 1

Documented rate limits and quota policies.

Southwestern Energy Rate Limits

1 limits

RATE LIMITS

FinOps 1

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

JSON Schema 1

Standalone JSON Schema definitions for this provider's data models.

Examples 1

Example request and response payloads for these APIs.

Press 5

Recent news and press coverage referencing this provider.

Design & Contract 2

Pagination, idempotency, versioning, errors, and events

JSONLDContext

JSONLDContext

Vocabulary

Vocabulary

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Company 4

The organization behind the API

Blog

Blog

Website

Website

Investor Relations

Investor Relations

LinkedIn

Other 2

Properties that don't map to a standard resource type

Expand Energy

Expand Energy

Source (apis.yml)

aid: southwestern-energy
accessModel:
  pricing: enterprise
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Enterprise
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/southwestern-energy.png
name: Southwestern Energy
description: Southwestern Energy Company (SWN) is one of the largest producers of natural gas in the United States, with exploration
  and production operations focused primarily on the Marcellus and Haynesville shales. In October 2024, Southwestern Energy
  completed a merger with Expand Energy Corporation (formerly Chesapeake Energy), though the SWN brand and investor relations
  infrastructure continues to operate under swn.com. As a Fortune 500 energy company, SWN focuses on responsible development
  of natural gas resources in the Appalachian Basin and Gulf Coast regions.
url: https://raw.githubusercontent.com/api-evangelist/southwestern-energy/refs/heads/main/apis.yml
created: '2026-03-24'
modified: '2026-05-02'
specificationVersion: '0.23'
tags:
- Fortune 500
- Natural Gas
- Energy
- Oil and Gas
tags_raw:
- Fortune 500
- Natural Gas
- Energy
- Oil And Gas
apis:
- aid: southwestern-energy:southwestern-energy-investor-relations-api
  name: Southwestern Energy Investor Relations API
  description: The Southwestern Energy investor relations portal provides financial data, shareholder information, earnings
    summaries, SEC filings, and corporate governance information. The investor relations infrastructure continues to operate
    at ir.swn.com following the merger with Expand Energy Corporation.
  humanURL: https://ir.swn.com/
  tags:
  - Investor Relations
  - Financial Data
  - Natural Gas
  properties:
  - type: Website
    url: https://ir.swn.com/CorporateProfile/default.aspx
  - type: Investor FAQ
    url: https://ir.swn.com/resources/investor-faq/default.aspx
  - type: Shareholder Information
    url: https://www.swn.com/investors/shareholder-information/
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/southwestern-energy/refs/heads/main/json-schema/southwestern-energy-production-schema.json
- aid: southwestern-energy:expand-energy-investor-api
  name: Expand Energy Investor Relations API
  description: Following the merger, Expand Energy Corporation's investor relations portal provides access to combined company
    financial data, earnings releases, SEC filings, and investor presentations for the merged natural gas production company.
  humanURL: https://investors.expandenergy.com/
  tags:
  - Investor Relations
  - Financial Data
  - Natural Gas
  - Energy
  properties:
  - type: Website
    url: https://investors.expandenergy.com/
  - type: Annual Report
    url: https://investors.expandenergy.com/static-files/e946a7e5-4ef1-4e8b-ba7b-f51506895db0
common:
- type: DomainSecurity
  url: security/southwestern-energy-domain-security.yml
- url: https://www.expandenergy.com/feed/
  type: Blog
- type: Website
  url: https://www.swn.com
- type: Investor Relations
  url: https://ir.swn.com/
- type: Expand Energy
  url: https://www.expandenergy.com/
- type: LinkedIn
  url: https://www.linkedin.com/company/southwestern-energy
- type: X
  url: https://twitter.com/SWNenergy
- type: JSONLDContext
  url: https://raw.githubusercontent.com/api-evangelist/southwestern-energy/refs/heads/main/json-ld/southwestern-energy-context.jsonld
- type: Vocabulary
  url: https://raw.githubusercontent.com/api-evangelist/southwestern-energy/refs/heads/main/vocabulary/southwestern-energy-vocabulary.yml
maintainers:
- FN: API Evangelist
  email: info@apievangelist.com

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Southwestern Energy

Kin Score

APIs 2

Southwestern Energy Investor Relations API

Expand Energy Investor Relations API

Pricing Plans 1

Southwestern Energy Plans Pricing

Rate Limits 1

Southwestern Energy Rate Limits

FinOps 1

Southwestern Energy Finops

Semantic Vocabularies 1

Southwestern Energy Context

Spectral Rules 1

Southwestern Energy API Rules

JSON Schema 1

Southwestern Energy Natural Gas Production Record

JSON Structure 1

Southwestern Energy Production Structure

Examples 1

Southwestern Energy Production Example

Security Posture 1

Southwestern Energy Domain Security

Press 5

Chesapeake to become top US natural gas producer with ...

Industry Veterans Unite Operations, Chart Course As ...

Chesapeake Energy Corporation and Southwestern ...

tm243657-1_s4 - none - 58.1072356s

Chesapeake Energy Corp. is buying Southwestern ...

Resources