Diesel prices averaged USD 3.84 per gallon in May, down 0.6% from April. On 29 May, the commodity traded at USD 3.51 per gallon, down 14.6% from 30 April.
Diesel’s average price premium vs crude stayed around multi-year highs in May despite declining. U.S. diesel inventories hit the lowest since 2003 in the week to 22 May at about 28 days of supply—down from 36 days in January and closer to the 20-day threshold that could trigger government rationing and supply-chain disruptions.
This chart displays Diesel (NULL) from 2024 to 2026.
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| Q1 2024 | Q2 2024 | Q3 2024 | Q4 2024 | Q1 2025 | Q2 2025 | Q3 2025 | Q4 2025 | Q1 2026 | Q2 2026 | Q3 2026 | Q4 2026 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diesel | - | 2.51 | 2.33 | 2.24 | 2.36 | 2.15 | 2.34 | 2.30 | 2.85 | - | - | - |