EIA Weekly Petroleum Status Report
The weekly physical of the oil market: commercial crude stock changes are the most direct read of supply-demand reality — and the Wednesday-night volatility timer.
Weekly (Wed 10:30 AM ET, holidays shift)
What it is
The EIA (US Energy Information Administration) publishes a weekly petroleum status report whose core line is the change in commercial crude oil inventories — builds signal oversupply or weak demand; draws signal tightness. The report also covers gasoline/distillate stocks, refinery utilization, production and imports/exports. It is the oil market's only high-frequency hard data — WTI volatility reliably expands around Wednesday 10:30 ET.
Release schedule
| Item | Details |
|---|---|
| • | Frequency: weekly (covering the prior week) |
| • | Release: Wednesday 10:30 ET (Wednesday 22:30/23:30 Beijing time); holidays shift it to Thursday |
| • | Core line: commercial crude stock change (actual vs consensus, in million barrels) |
| • | Auxiliary lines: gasoline and distillate stocks, Cushing stocks (the WTI delivery hub), refinery utilization, US production |
| • | Companion: the API (American Petroleum Institute) private estimate on Tuesday evening — a preview with a different methodology |
Why it matters
Inventories are the solution to the supply-demand equation: the net effect of production, imports and refinery demand all lands in the stock change — more physical than any analyst's forecast. The market prices inventories versus expectations: a bigger-than-expected draw = bullish (tight), a surprise build = bearish. In ordinary weeks without supply events, the EIA print is WTI's standing volatility source.
Impact across assets
Typical impacts (using a bigger-than-expected draw):
| Asset | Typical impact |
|---|---|
| WTI crude | Bigger draw → bullish (+1–2% common); surprise build → bearish; most pricing completes within 30 minutes of release |
| Energy equities | Follow oil: XLE and oil services typically rise with draws, but with less beta than futures (the equity tape has other inputs) |
| Brent | Moves with WTI but carries more geopolitical input — as US data, EIA usually moves Brent less than WTI |
| Natural gas | Note: gas stocks are a separate Thursday report — Wednesday's petroleum data does not cover natural gas |
| Inflation expectations | Persistent draws → a higher oil center → energy inflation — via CPI, the distant Fed-path input |
How to read it
The standard read of the EIA report:
| Dimension | How to read it |
|---|---|
| Crude stocks vs consensus | The core read: actual versus the Reuters poll — a 2–3 million-barrel gap often moves oil 1–2% |
| Cushing stocks | The WTI delivery hub — near tank-bottom levels, front-month squeezes become possible (the mirror of 2020's negative oil) |
| Gasoline/distillates | Product stocks reflect end demand (driving season/winter) — crude draws with gasoline builds = a refinery mismatch, read differently |
| Production & trade | Record US output = long-term supply pressure; import spikes may be transient — separate trend from noise |
The advanced lens: single-week noise (weather, ports, refinery maintenance) is real — the 4-week average and the level versus the 5-year seasonal average are the trend tools. EIA's interactive charts expose historical percentiles directly.
Limitations & common mistakes
- Confusing API with EIA: API is the industry's private survey (Tuesday), EIA is the official statistic (Wednesday) — different samples and methods; API is reference, never the print.
- Single-week noise: hurricanes, refinery outages and port delays manufacture outliers — only 3–4 consecutive weeks carry trend meaning.
- Reading crude alone: crude draws with gasoline builds = weak end demand — "good total, bad mix" needs the components.
- The seasonal baseline: stock seasonality is strong (summer draws, autumn builds) — compare against the 5-year average, not last week.
- Subordinate to OPEC+: monthly policy decisions outweigh weekly stocks — inventories generate noise within a trend; they rarely create it.
Related macro data
How it links to other macro data:
- With OPEC+: OPEC+ sets supply policy, EIA verifies physical reality — the gap between policy expectations and inventory reality is oil's second wave. opec
- With geopolitical risk: sanctions and attacks change supply expectations — inventories verify whether the shock reached physical flows. geopolitics
- With CPI: tightening stocks → a higher oil center → energy inflation — weekly inventories are a high-frequency lead on CPI energy. cpi
Symbols most sensitive to EIA Crude Inventories
Symbol pages that list this data as a factor to watch:
FAQ
Q What time is the EIA report released?
Wednesday 10:30 ET (22:30 Beijing time in winter / 23:30 in DST), shifted to Thursday after holidays. Oil completes its first pricing round within seconds — manage positions before the event, as with all data releases.
Q How do API and EIA differ?
API is the industry association's private survey (Tuesday evening); EIA is the Department of Energy's official statistics (Wednesday). Samples and methods differ and they regularly diverge — the market trades EIA; API is only a hint.
Q What counts as a "big" inventory change?
Relative to expectations: an actual-vs-consensus gap beyond ±3–4 million barrels is notable (usually >1% oil moves). The absolute frame is the level versus the 5-year seasonal average — where stocks sit matters more than any single week.
Q Why does Cushing matter so much?
Cushing, Oklahoma is the physical delivery point of WTI futures — as stocks approach pipeline bottoms (about 20 million barrels), front-month squeeze risk rises and the term structure whipsaws. April 2020's negative oil was the extreme Cushing case.
Q Does the EIA petroleum report cover natural gas?
No — natural gas storage is a separate weekly report (Thursday 10:30 ET), with different data, seasonality and drivers (heating/power burn). For gas, watch Thursday's storage report.
MT4/MT5 Tray Assistant
Silent tracking, one-click close - check quotes and manage positions right from the tray.
Download Camovia TrayThis page is educational content about macroeconomic data. It is not investment advice. Macro impacts involve multiple interacting factors — always combine them with your own risk management.