BTU GraphEnergy company directory

Public release ledger

What changed,
and when.

Only material editorial, coverage, and data-contract changes belong here. Automated builds and link checks do not create releases.

  1. 01

    Decision guides and complete external-domain corroboration

    BTU Graph added three intent-led company maps, connected them across discovery surfaces, and closed the external-domain evidence backlog for all 66 profiles.

    • Published upstream forecasting and valuation, commodity trading and ETRM risk, and LNG and midstream analytics guides with decision workflows, evaluation checklists, cited public context, and clearly separated market-data handoffs.
    • Linked the guides from primary navigation, the homepage, footer, relevant company, product, and workflow records, the sitemap, RSS, Markdown negotiation, and expanded agent context.
    • Added regulator, government, filing, customer, partner, or other externally hosted evidence to the final 19 profiles; all 66 company profiles now include at least one external-domain citation and the generated queue is empty.
    • Extended the exact-100 Lighthouse, browser, export, internal-link, and commercial-policy release gates to the new guide templates.
  2. 02

    Public-showcase coverage and safe discovery foundations

    BTU Graph expanded company coverage while adding exact source-drift, evidence-hold, privacy, and publication controls for future data-assisted research.

    • Published 16 new evidence-backed company profiles and reconciled every identity on the public Oil Price API showcase: 17 publishable organizations are covered, while two unverifiable or unsafe identities remain on dated evidence holds with no public profile.
    • Added an Energy-adjacent services & end users sector and 11 controlled capability concepts so aviation, mobility, publishing, digital delivery, education, and investor-relations businesses are not forced into core energy or software categories.
    • Added a weekly exact-card source-drift gate, deny-by-default source contracts, expiring evidence holds, and private-only SEC and public-activity candidate validators; none can auto-publish a profile or programmatic page.
  3. 03

    Agent access and evidence hardening

    BTU Graph made every canonical page directly readable as Markdown and strengthened independent corroboration and commercial controls.

    • Added HTTP Accept: text/markdown content negotiation with canonical frontmatter, editorial content, JSON-LD, token estimates, public CORS, and the same content-use policy as HTML.
    • Added 17 claim-specific government, regulatory, project-owner, customer, partner, and professional sources; 31 of 50 company profiles now have externally hosted corroboration and the remaining 19 are tracked in a generated queue.
    • Added deterministic release checks for house-ad eligibility, placement surfaces, maximum one ad per page, and site-wide saturation independently of directory inclusion and rank.
  4. 04

    Evidence-backed correction intake

    BTU Graph added a structured corrections desk without creating another data-collection endpoint.

    • Required the exact BTU Graph profile, requested correction, and one public supporting source before preparing a request.
    • Built the email draft locally in the reader's browser with no form submission, analytics event, or browser storage and retained a no-JavaScript email template.
    • Added the correction template to sitemap, agent discovery, static-export, browser, privacy, performance-budget, and exact-100 Lighthouse checks.
  5. 05

    Controlled capability taxonomy

    BTU Graph normalized company and software capability language without discarding source-specific wording.

    • Mapped 292 evidence-derived phrases across 322 assignments to 75 stable capability concepts in six parent groups.
    • Added preferred labels, definitions, registered aliases, and validation that blocks unknown IDs, unregistered synonyms, and cross-concept alias collisions.
    • Released graph schema v4 with canonical capability nodes, company and software capability edges, and canonical IDs in the company CSV export.
  6. 06

    Initial Energy Field Atlas edition

    BTU Graph became a broad, evidence-backed energy company directory with an open public data layer.

    • Published 50 company profiles across 12 energy sectors, spanning operators, field services, infrastructure, LNG, refining, power, engineering, trading, data, AI, and software.
    • Attached at least two public evidence records to every company profile and separated company-stated facts from BTU Graph editorial classification.
    • Released graph JSON schema v3, a normalized company CSV, an OpenAPI contract, RSS updates, and concise and expanded agent guides.
    • Added a disclosed Oil Price API market-context module and an explicit company-page placement allowlist independent of directory inclusion or rank.
    • Separated first-published, materially-updated, and evidence-review dates so routine checks do not create false freshness signals.