How to Read the EIA Crude Oil Inventories

What is the EIA Crude Oil Inventories?

EIA's weekly estimate of U.S. crude oil stocks is published in the Weekly Petroleum Status Report, in thousand barrels. Stocks include domestic and Customs-cleared foreign crude held at, or in transit to, refineries and bulk terminals, plus crude in pipelines. Estimates come from weekly company surveys whose sample is chosen to cover about 90 percent of reported volumes.

EIA's weekly stocks table lists commercial crude oil (excluding lease stock), the Strategic Petroleum Reserve and crude oil including SPR as separate lines, along with Alaska in-transit. The table notes say all stock levels are as of the end of the period and that data may not add to total due to independent rounding.

Production facts:

• Publisher: U.S. Energy Information Administration
• Frequency: Weekly
• Typical release time: 10:30 a.m. ET on Wednesday, with holiday shifts listed in the EIA schedule
• Primary metric: Commercial crude inventories
• Market sensitivity: High
• Data type: Hard data
• Economic indicator type: Coincident
• Revision risk: Low

Key components to watch

The headline (Commercial crude inventories) is the most widely quoted but rarely the most informative number. The components that follow reveal whether the headline result is broad-based or concentrated, improving or deteriorating, and consistent with prior trends.

• Commercial crude oil (excluding lease stock)
• Strategic Petroleum Reserve (SPR)
• Crude oil including SPR
• Cushing, Oklahoma crude oil stocks
• Alaska in-transit
• Stocks by PAD District

For any release with multiple components, the investor's task is not to memorize every number but to identify which components are most relevant to the current investment thesis and track those with the most care.

How to read the headline: actual versus expected

Markets react to the gap between the published Commercial crude inventories and the consensus forecast, not to the level alone. A stronger-than-expected or weaker-than-expected result is defined against that forecast, so check what was expected before reading the number.

The EIA Crude Oil Inventories carries low revision risk, so the figure published at release is the one to compare with the forecast and with the previous period.

Market impact by asset class

The EIA Crude Oil Inventories primarily affects the following markets: Oil, Natural gas, Energy equities, Commodities, Inflation-sensitive assets.

Stronger than expected result: In an inflation-elevated, tightening environment, a stronger result typically pressures interest-rate-sensitive assets and can strengthen the dollar. In a growth-slowing environment, a stronger result can be equity-supportive if it reduces recession fears.

Weaker than expected result: In a growth-concern environment, a weaker result may reinforce concerns about economic deceleration. If the Fed is watching this specific indicator for policy calibration, a persistent pattern of below-consensus results may shift the rate path.

In-line result: In-line results typically produce muted market reactions unless there are significant component deviations from expectations. The market had already priced the consensus, so confirmation requires little repricing.

Revision risk and methodology notes

The EIA Crude Oil Inventories carries low revision risk. EIA issues a revised weekly figure only if the revision is expected to substantively affect understanding of U.S. petroleum supplies, and it does so in the next regularly scheduled release. Resubmissions are required when a respondent finds an error above 5 percent, and in rare instances they lead to a revised estimate.

Primary source: U.S. Energy Information Administration: EIA Crude Oil Inventories. Release calendar: U.S. Energy Information Administration schedule.

Publisher documents read for this page:

• U.S. Energy Information Administration: U.S. Stocks of Crude Oil and Petroleum Products
• U.S. Energy Information Administration: Weekly Petroleum Status Report Schedule
• U.S. Energy Information Administration: Weekly Petroleum Status Report Appendix B: Explanatory Notes and Detailed Methods Report

Common investor mistakes

• Reacting to the headline without checking the components. The headline can diverge significantly from the underlying trend revealed by the components. A headline beat driven by a volatile component may not indicate the same strength as a broad-based improvement.
• Ignoring revisions to prior periods. An initial strong number revised down in the following release tells a different story than a number that stands firm.
• Not knowing what is consensus-priced. Reacting to a number without knowing what was already expected conflates information with noise. The market reaction is driven by the deviation from expectations, not by the level of the number.
• Applying the same interpretation across different regimes. The same headline result has different implications depending on the Fed's current stance, the growth trend, and what is already priced into the yield curve and equity multiples.

Related releases

The EIA Crude Oil Inventories should be read alongside:

• EIA Weekly Petroleum Status Report
• EIA Gasoline Inventories
• EIA Distillate Inventories
• EIA U.S. Crude Oil Production
• EIA Weekly Natural Gas Storage Report

Frequently asked questions