The US Crude Draw Was Concentrated on the Gulf Coast While Cushing Stocks Rose

A national decline masks a regional split

The Energy Information Administration’s October 21 petroleum report shows US commercial crude inventories falling by 3.1 million barrels in the week ending October 16. The more useful detail for this release is where that decline occurred. Gulf Coast stocks fell while inventories at Cushing, Oklahoma, increased. A national draw therefore does not describe a uniform tightening across the country.

Our interpretation is that the report calls for a location-specific research question: which storage balance is relevant to the asset or company being evaluated? The national figure provides context, but investors need additional evidence before attaching a regional inventory move to realized prices or earnings. The figures below are end-of-week stocks, measured in million barrels, rather than daily production or consumption rates.

All three source documents linked here come from EIA’s same weekly release. They provide complementary tables and a summary, not three independent confirmations. The regional table is the main evidence for the geographic interpretation.

The Gulf Coast draw exceeded the national decline

Commercial crude stocks excluding the Strategic Petroleum Reserve ended the week at 412.5 million barrels. EIA’s Table 4 reports Gulf Coast, or PADD 3, stocks at 229.3 million barrels, with a weekly decline of 5.0 million barrels. That regional draw was larger than the national decline because movements elsewhere partly offset it.

East Coast stocks increased by 1.1 million barrels to 8.5 million. Midwest stocks rose by 0.6 million to 107.6 million, and Rocky Mountain stocks increased by 0.8 million to 23.5 million. West Coast stocks declined by 0.6 million to 43.5 million. Adding those five reported regional changes produces the reported national change of minus 3.1 million barrels.

This distribution supports a narrow conclusion: the Gulf Coast supplied the largest negative contribution to the weekly commercial crude stock change. It does not establish why those barrels left storage. Assigning the move to exports, refinery buying, transport timing or another cause would require evidence about the relevant regional flows. A stock table alone cannot identify that cause.

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Cushing is a hub within the Midwest total

Cushing inventories reached 27.6 million barrels, up 1.0 million from the preceding week. EIA places that row beneath the Midwest entry. Cushing is included in the Midwest total; adding its change to the five regional changes would double-count the hub and distort the national reconciliation.

The distinction also affects interpretation. Cushing’s increase was larger than the Midwest’s net increase, indicating that movements in the rest of the region partly offset the hub build. That observation does not identify a particular pipeline, refinery or transaction. It simply shows why a broad regional total can conceal differences within the region.

EIA’s footnote defines the Cushing series as crude held in tank farms in Lincoln, Payne and Creek counties in Oklahoma. It also identifies Cushing as the designated delivery point for NYMEX crude oil futures contracts. That makes the location relevant when investigating a futures-related physical supply question. However, the table contains neither current futures spreads nor usable storage capacity. The inventory increase alone cannot establish a trading signal, available spare capacity or the profitability of storing oil.

Preserve the reported changes and the stock definitions

The Gulf Coast row illustrates a small but consequential rounding issue. Its displayed stock levels are 229.3 million barrels for the current week and 234.4 million for the prior week. Subtracting those rounded levels gives minus 5.1 million, while EIA reports a decline of 5.0 million. The table explains that differences and percentage changes are calculated using unrounded numbers. The reported change should therefore be preserved rather than replaced with a calculation using rounded display values.

The commercial series also has a specific scope. EIA includes crude held at refineries and tank farms, in transit to those locations, and in pipelines. It is not a measure of barrels immediately offered for sale. The Strategic Petroleum Reserve is shown separately: its stocks fell by 0.3 million barrels to 282.7 million. Combining commercial and reserve stocks answers a different question from assessing the commercial draw.

For a research note, record the period, unit, geography and inventory definition beside each number. This keeps a hub observation from becoming a national claim and prevents a change in government reserves from being attributed to the commercial storage system.

Translate geography into a company research task

Consider a hypothetical investor evaluating a US-listed energy company with assets in several regions. The first step is to verify the locations and operating exposures in the company’s own disclosures. Then identify which regional balance, if any, bears on the business question. A company’s headquarters or stock-market listing does not determine the geographic exposure of its assets.

The second step is to identify the missing connection to earnings. For a producer, that might require evidence about its actual pricing arrangements and realized prices. For a refinery or storage business, the relevant contracts, operating conditions and costs would need examination. These are research requirements, not claims that this week’s Gulf Coast draw benefited a particular company.

The assessment would become stronger if subsequent regional reports showed a persistent pattern and independently verified flow or pricing evidence explained it. It would weaken if the next release reversed the move or showed that the national decline had obscured temporary regional timing. Until those checks are complete, the defensible finding is geographic: Gulf Coast commercial crude stocks fell sharply while Cushing stocks rose. The investment conclusion remains conditional.

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ORIGINAL SOURCES & FURTHER READING

Research and education, not personalized investment advice. Facts and examples should be read in the context of their stated periods. Follow the original disclosures for the complete record.