Diesel didn’t cool off in May. Here’s where the market stood – and what it means for carrier margins heading into summer.
U.S. Avg Retail Diesel
$
0
vs April End
+$
0
vs May 2025
+
0
%
Above $5.00 (2026 YTD)
0
Weeks
May confirmed what April hinted at: the March spike was not a temporary event, it was a repricing of the market. Prices that briefly pulled back in late April re-climbed to $5.640 in the first week of May and held above $5.59 through mid-month. For carriers on monthly surcharge resets, the intra-month gap between pump price and contracted recovery has now been open for a full quarter. The question heading into June is not whether diesel normalises – it’s whether your surcharge structure is built for an environment where it doesn’t.
Source: EIA Weekly U.S. No 2 Diesel Retail Prices magnustech.com