Cushing crude oil inventories, week by week
A fifth build, and a miss on 12 October
Cushing took in 1.0 million barrels in the week to 16 October, its fifth build in a row. The hub has added 6.1 million since the week to 11 September, from 21.5 million to 27.6 million, its highest level since the start of May and 6.4 million above the same week last year.
Our 12 October read was a miss. We put the hub at 25.5 million and the EIA printed 27.6 million for the week to 16 October, 2.1 million higher and above the top of our 80% band of 24.1 to 26.7. We called a draw and the hub built by 1.0 million. It is our second miss in a row, and both came in low while the hub was building.
Our 24 October pass reads 27.8 million, with an 80% band of 26.3 to 29.0. That is 0.2 million above the 16 October print, so it points to a hub holding near this level rather than building at the pace of the past five weeks. The pass falls in the week to 30 October, which the EIA reports on Wednesday 4 November; the print for the week to 23 October comes first, on Wednesday 28 October.
Year on year the hub is up 6.4 million barrels, from 21.2 million in the same week of 2025. The seasonal envelope below is the cleaner comparison: 2025 held above the floor through the whole summer, and this year's line has sat under the five-year band since the spring.
Below the floor, spreads price the tank, not the curve
Five of the 42 weeks of 2026 have printed under 20 million barrels, the last of them the week to 24 July. On previous approaches to this zone, prompt WTI time spreads widened into backwardation within a month, independent of what total U.S. commercial stocks were doing.
What would change the read: a sustained run above 22 million, which would restore blending flexibility at the hub, or a slide back under 20 million, which would take it away again.
Seasonal envelope: this year against the last five
Last twelve weeks
| Week ending | EIA | Our est. | W/W | Y/Y | Filled | Vs. floor |
|---|---|---|---|---|---|---|
| 16 Oct 2026 | 27,594 | 25,476 | +987 | +6,363 | 28.2% | +7,594 |
| 09 Oct 2026 | 26,607 | – | +1,862 | +4,606 | 27.2% | +6,607 |
| 02 Oct 2026 | 24,745 | 24,672 | +444 | +2,041 | 25.3% | +4,745 |
| 25 Sep 2026 | 24,301 | – | +553 | +834 | 24.8% | +4,301 |
| 18 Sep 2026 | 23,748 | 22,485 | +2,266 | +10 | 24.2% | +3,748 |
| 11 Sep 2026 | 21,482 | 22,850 | −342 | −2,079 | 21.9% | +1,482 |
| 04 Sep 2026 | 21,824 | – | −684 | −2,033 | 22.3% | +1,824 |
| 28 Aug 2026 | 22,508 | 20,969 | +80 | −1,714 | 23.0% | +2,508 |
| 21 Aug 2026 | 22,428 | – | +1,176 | −204 | 22.9% | +2,428 |
| 14 Aug 2026 | 21,252 | 22,534 | −1,314 | −2,218 | 21.7% | +1,252 |
| 07 Aug 2026 | 22,566 | 19,634 | +1,611 | −485 | 23.0% | +2,566 |
| 31 Jul 2026 | 20,955 | – | +2,356 | −2,051 | 21.4% | +955 |
Method and caveats
- Official series
- The official Cushing crude oil inventory series: EIA Weekly Petroleum Status Report, series W_EPC0_SAX_YCUOK_MBBL. Ending stocks in thousand barrels, Friday close, excluding the Strategic Petroleum Reserve. Shown here from January 2019, and plotted as a step: each print holds until the next one lands, the same way the satellite line is drawn.
- Our estimate
- Floating-roof measurement from satellite imagery, converted to a fill percentage of surveyed tank volume. Cadence follows the imaging pass, roughly every six to twelve days; between passes the line is held flat at the last reading rather than interpolated. Mean absolute error against the nearest EIA print, 368 passes from 2018 to date, is 3.3%: median 2.7%, ninth decile 6.8%, mean bias +50 thousand barrels. The band on the chart spans the middle 80% of those readings. Single weeks miss by more.
- Working capacity
- Taken as a constant 98 million barrels. That is a stated assumption rather than an EIA figure, held fixed so that one week can be compared with another, which makes fill percentages indicative rather than exact.
- Operational floor
- 20 million barrels, a market convention for unpumpable tank bottoms and minimum line fill. Operators do not publish a figure; treat it as a band, not a threshold.
- Revisions
- EIA does not revise this series after publication. No smoothing, interpolation, or seasonal adjustment is applied here.