# Bunker Pricing Data Coverage, Provenance And Freshness

Last updated: 2026-08-07
Purpose: Explain what Bulugo public price data represents, where it comes from and what not to infer.
Canonical HTML reference: https://bulugo.com/bunker-prices

Source of truth:
- The public price export at https://bulugo.com/prices.json is the authoritative crawler-visible price data source.
- The website export pipeline filters latest fuel price rows by a 72-hour public price export freshness window.
- Public pages should describe price rows as market indications, not firm supplier offers.

Important limitations:
- Prices are market indications, not executable quotes.
- A missing port or grade does not prove that no supplier can quote it.
- Freshness and coverage can change at each website data export.

Current generated public-data snapshot:
- public/prices.json contained 94 priced ports when this file was generated.
- Fuel grades present in the generated price export: IFO380, LSMGO, MGO, VLSFO.
- Price export lastUpdated: 2026-08-07T16:00:54.000Z.
- The website export uses a 72-hour public price export freshness window.

## Direct answer

Bulugo publishes public bunker price indications for ports and grades present in the generated website price export. The export is designed for market context before a buyer requests firm supplier pricing.
Price data should be paired with freshness timestamps and coverage caveats. It should not be used as a binding supplier offer or as evidence that a stem can be lifted in a specific delivery window.

Related public links:
- https://bulugo.com/prices.json
- https://bulugo.com/llms/fuel-quoting.md
- https://bulugo.com/llms/trust-limitations.md

## Provenance and freshness

The public website export is built from Bulugo's price data pipeline and uses a 72-hour public price export freshness window for latest price rows.
The generated public snapshot can report how many priced ports and fuel grades were present in public/prices.json at build time. Avoid copying that count into hand-written claims because it can drift.

Related public links:
- https://bulugo.com/llms/ports-fuel-products.md
- https://bulugo.com/bunker-prices

## Maintenance

Update owner: Bulugo website maintainers.
Runbook: edit data/ai-knowledge-docs.json, run npm run test:ai-knowledge, run npm run build, then verify live /llms.txt, /llms-full.txt and every /llms/*.md URL after publish.