How to Read EIA's Petroleum Supply Monthly — U.S. Crude Oil and Product Supply, Trade and Products Supplied

As of 1 November 2026 (August table retrieved 00:24 KST, July previous-period table retrieved 01:24 KST); most recently published release: Petroleum Supply Monthly (PSM) data from the U.S. Energy Information Administration (EIA), with the U.S. supply and disposition table for August 2026 (table release date 10/30/2026, next release date 11/30/2026; no time of day is given). The PSM report page, checked at 00:23 KST, showed the issue with data for August 2026, release date October 30, 2026 and next release date November 30, 2026. Primary source: https://www.eia.gov/dnav/pet/pet_sum_snd_d_nus_mbblpd_m_cur.htm^[1][4]

Comparison basis: values are daily averages in thousand barrels per day, as shown in EIA's U.S. supply and disposition table; the July 2026 values are those shown on the table's previous-period page when checked (01:24 KST), not necessarily as first published. The tables used do not show August 2025, so no year-ago change is given. Changes are this page's calculation, rounded to one decimal. The tables and report page are all from EIA and count as one source.^[2][3]

In three lines

1. EIA's monthly PSM table gives U.S. supply (field production, imports, refinery and blender output) and disposition (refinery inputs, exports, products supplied) of crude oil and petroleum products, with stock changes.
2. In August 2026, U.S. crude oil field production averaged 13,965 thousand barrels per day, crude imports 6,594 and crude exports 3,992.
3. Products supplied of all crude oil and petroleum products averaged 20,595 thousand barrels per day; the data are preliminary.^[2][4]

Stocks and adjustments. "A negative stock change indicates a decrease in stocks and a positive number indicates an increase in stocks." "Adjustments include an adjustment for crude oil, previously referred to as Unaccounted For Crude Oil, and adjustments for hydrogen, motor gasoline blending components, and fuel ethanol." "Total stocks exclude petroleum products held in federal and state regional product reserves."^[1]

Imports and exports. "Imports at the PAD District level represent the PAD District in which the material entered the U.S. and not necessarily where the crude oil or product is processed and/or consumed." "Exports of distillate fuel oil with sulfur greater than 15 ppm to 500 ppm may include distillate fuel oil with sulfur content 15 ppm and under due to product detail limitations in exports data received from the U.S. Census Bureau." "Data may not add to total due to independent rounding."^[1]

Preliminary vs final. The report page describes the PSM as preliminary data, with final data appearing in the Petroleum Supply Annual, Volume 2.^[4]

Supply vs disposition. For all crude oil and petroleum products in August 2026, the table shows field production 22,024, biofuels plant net production 1,437, refinery and blender net production 20,330, imports 8,041 and adjustments 65 on the supply side, and a stock change of -147, refinery and blender net inputs 19,345, exports 12,105 and products supplied 20,595 on the disposition side (thousand barrels per day).^[2]

Crude oil trade. Crude exports rose 12.3% and crude imports 5.9% from July (this page's calculation), while field production was almost unchanged (+0.1%). The table shows the flows but does not explain the changes.^[2][3]

Stock change sign. The crude oil stock change of -367 thousand barrels per day in August 2026 means stocks fell, following EIA's note that a negative stock change indicates a decrease.^[2]

Products vs blending components. Finished motor gasoline products supplied averaged 8,980 thousand barrels per day, while blending components are shown on separate rows; the rows should not be added together without the table's structure.^[2]

Negative products supplied. Some rows show negative products supplied, for example marketable petroleum coke (-77 thousand barrels per day in August 2026) and ethylene (-31); the table prints these values without explaining them.^[2]