Research / Field note
Reading the EIA inventory release
A repeatable checklist for interpreting stock changes before attributing a move in WTI.
30 October 2026 snapshot
EIA reported 27.250 million barrels of Cushing commercial crude stocks excluding lease stock for the week ending 30 October, up 280,000 barrels from the preceding week. The series was released on 4 November. This local stock change does not establish the cause of a move in the spot price.
1. Set the scope
Start with the report week ending date. Compare US commercial crude stocks excluding the Strategic Petroleum Reserve separately from Cushing stocks and the SPR. These report different inventories and should not be added casually.
2. Look beyond the headline change
Look at production, imports, exports and refinery inputs, and check the adjustment in the crude balance. A stock build during reduced refinery runs can tell a different story from a stock build driven by higher net imports.
3. Match the dates
The inventory week and the price observation are different time concepts. The release may arrive after the reporting period. Record both dates if comparing market reactions, and check the published holiday schedule.
4. Record what remains unknown
Stocks measure reported inventories, not the spare capacity available to any given shipper. Treat weather, outages, maintenance and logistics as hypotheses unless supported by dated primary evidence.