Regular gas Diesel
United States Est. avg gas prices • Sep 27 $4.46 /gal
↑ 9.6% vs. 1 month ago
4-week outlook Actual Forecast Likely range $3.75 $4.38 $5.00 ~$4.38 Aug 24 Sep 7 Sep 21 Sep 28 Oct 19 U.S. gas · edition chart values in USD per gallon Date Type Price Likely range 2026-08-24 Actual $4.085 — 2026-08-31 Actual $4.071 — 2026-09-07 Actual $4.157 — 2026-09-14 Actual $4.319 — 2026-09-21 Actual $4.478 — 2026-09-27 Forecast $4.457 $4.457–$4.457 2026-09-28 Forecast $4.453 $4.358–$4.540 2026-10-05 Forecast $4.416 $4.221–$4.592 2026-10-12 Forecast $4.371 $4.072–$4.637 2026-10-19 Forecast $4.384 $4.018–$4.717
United States Weekly avg diesel prices • Sep 21 $6.53 /gal
↑ 24¢ vs. prior week
4-week outlook Actual Forecast Likely range $5.00 $6.62 $8.25 ~$6.69 Aug 24 Sep 7 Sep 21 Oct 5 Oct 19 U.S. diesel · edition chart values in USD per gallon Date Type Price Likely range 2026-08-24 Actual $5.652 — 2026-08-31 Actual $5.599 — 2026-09-07 Actual $5.967 — 2026-09-14 Actual $6.285 — 2026-09-21 Actual $6.529 — 2026-09-28 Forecast $6.570 $6.193–$6.946 2026-10-05 Forecast $6.611 $5.858–$7.363 2026-10-12 Forecast $6.651 $5.522–$7.781 2026-10-19 Forecast $6.692 $5.187–$8.198
OIL THE PUMP A LITTLE CONTEXT GOES A LONG WAY. THE BIG PICTURE · TL;DR
White House denies report US is considering a diesel export ban
U.S. gas $4.46/gal; diesel $6.53/gal. See the linked sources for the story and price dates.
Gas +16¢; diesel +24¢. EIA U.S. averages: regular gas $4.48/gal (September 21) and diesel $6.53/gal (September 21). The previous weekly readings were $4.32 and $6.29.
Source: EIA · Gasoline and Diesel Fuel Update ↗ Source timing Source date: September 21, 2026
What is pushing diesel prices. EIA says overseas refinery disruptions tightened diesel supply. U.S. stocks of diesel and similar fuels were 13% below their usual seasonal level in mid-September; crude oil also cost more.
Source: EIA · Today in Energy ↗ Source timing Source date: September 18, 2026
Diesel costs $2.05/gal more than gas. The gap is up from $1.97 last week. At the national averages, 15 gallons of diesel costs about $30.77 more than 15 gallons of regular gas.
Source: EIA · Gasoline and Diesel Fuel Update ↗ Source timing Source date: September 21, 2026
At the pump
15 gallons: $67.17 gas; $97.94 diesel. At the dated EIA national averages, that is $2.39 more for gas and $3.66 more for diesel than a week earlier.
See EIA prices →
About these prices GasPulse labels its dated gas estimate; EIA supplies the weekly diesel average. The percentage compares EIA weekly readings one month apart. Dotted chart lines show projections.
EIA weekly regular gas anchor: $4.478/gal. Source date: September 21, 2026.
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