Hindcast demonstration · Energy & commodities

Hindcast: would a naive 'no revision' rule have predicted the EIA's July 2026 Brent cut?

The July 2026 STEO revises its 2026 annual Brent forecast DOWNWARD from the June 2026 STEO figure of $95.39/b

This is a hindcast, not a live predictionThis record was constructed after the outcome was known, using only information available at its stated data cutoff, to demonstrate how Warconomy scores forecasts. It is excluded from live predictive performance on the track record.
ForecastVerifiedresolvedIssued · data through external-forecast-tracking-v1 v1.0
Warconomy forecastvery likely (roughly 80-95%)roughly 80-95% — see how bands are defined
Issued
Data cutoff
Horizon
18 days
Resolves by
Epistemic class
Forecast (modeled, not observed)
Evidence status
verified

How this resolves

Resolves TRUE if the July 2026 STEO's 2026 annual Brent average is below $95.39/b.

Resolution source: EIA Short-Term Energy Outlook, July 2026 edition

Assumptions

  • Cutoff-date information only: the U.S.-Iran memorandum was signed 18 June 2026 and tanker traffic through Hormuz was reported to have jumped immediately afterward.
  • A supply-restrictive premium built into the June STEO would unwind once the strait reopened.

Leading indicators to watch

  • Daily Hormuz transit counts after 18 June 2026

What would make this wrong

  • The memorandum collapsing before the July STEO cutoff of 1 July 2026.

Naive baseline comparison

BaselineNo-revision naive baseline
Baseline saidThe July STEO repeats the June figure of $95.39/b (no revision).
Baseline outcomeBaseline was wrong

What actually happened

The July 2026 STEO (released 7 July 2026) cut the 2026 annual Brent average to $81.91/b from $95.39/b — a downward revision of about $13.48/b, explicitly attributed by the EIA to increased oil flows through the reopened strait.

Event occurredYes
Directionally correctYes
Brier score0.0225 (lower is better; 0.25 = a coin flip)
Scored

The prediction above is preserved exactly as issued — this outcome sits alongside it and never replaces it.

Methodology

Watches whether a body like the EIA will move its own published forecast up or down at its next release, based on what has happened since it last locked its data.

Uncertainty: Direction-of-revision expressed as a coarse probability band; any accompanying level range is a plausible-range bracket around the institution's own published central value, never Warconomy's independent price model.

Validation: Resolved directly against the institution's next published release. Baseline: 'no revision' (assume the institution repeats its prior figure).

Full model card: External institutional forecast tracking v1.0.

Sources

SourceTypeLink
EIA — Short-Term Energy Outlook (STEO)Officialwww.eia.gov/outlooks/steo/

All forecast fields (accessible table)

Every field of this forecast record, as published.
FieldValue
Forecast IDhc-2026-02-eia-brent-june-revision
Target variableThe EIA Short-Term Energy Outlook's published 2026 annual Brent forecast
Target eventThe July 2026 STEO revises its 2026 annual Brent forecast DOWNWARD from the June 2026 STEO figure of $95.39/b
Predictionvery likely (roughly 80-95%)
Issue date2026-06-19
Data cutoff2026-06-19
Horizon (days)18
Resolution date2026-07-07
Resolution sourceEIA Short-Term Energy Outlook, July 2026 edition
Statusresolved
Epistemic classforecast
Evidence statusverified
Modelexternal-forecast-tracking-v1 v1.0
HindcastYes — not a live prediction

Machine-readable: /forecasts/data.json

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