Diesel prices in Texas have reversed higher, and it lands directly on delivered material cost. After easing through the spring and bottoming in early July, the national on-highway diesel average jumped back to $5.13 a gallon by July 20. For contractors who buy material delivered across DFW, Austin, and San Antonio, diesel is the fuel under every load, and haul distance decides how much of it burns. A fast reversal like this one can put a delivered quote underwater between the day it is written and the day the crew places the material.
Fuel is the one input on a delivered load that can move sharply in either direction inside a single billing cycle. This month it moved up.
The national on-highway diesel average climbed to $5.13 a gallon by July 20, up from an early-July low near $4.58 (Source: EIA, July 20, 2026). That is a roughly two-week reversal after months of easing, driven by international shipping disruption and tight global refining margins.
The jobsite impact is about timing and haul distance. Diesel is the fuel under every truck that carries road base, flex base, and fill to a Texas jobsite, so when it swings up quickly, the delivered cost moves with it. The farther the pit is from the jobsite, the more fuel each load burns, and the sharper the effect on the number you pay.
“The national on-highway diesel average reached $5.13 per gallon by July 20, reversing an early-July decline.”
Source: U.S. Energy Information Administration, July 20, 2026
The practical problem is the gap between bid and placement. A delivered quote written in late June against a lower diesel number, on a job that places material in August, can quietly lose margin as fuel climbs underneath it. Contractors who locked delivered pricing during the early-July dip caught good timing. Anyone quoting now should price the haul against current fuel, not last month’s.
The move is to treat fuel as a live input, not a fixed assumption. Confirm delivered cost in writing, close to the placement date where you can, and keep haul distance in view when you compare pit prices, since the nearer source often wins on delivered cost even at a higher pit price. When you need dedicated capacity, trucks by the hour keep a crew placing material.
The forward view is that diesel stays volatile while global refining and shipping conditions are unsettled. That argues for pricing material and trucking together, on one current delivered number, rather than carrying fuel as a guess. This lands on top of the capacity pressure covered in tightening Texas truck capacity, so weekly attention to fuel is cheaper than a surprise on the invoice.
Diesel drifts down just long enough that everyone stops watching, then it jumps, so watch it.
Price your haul against today’s fuel, not last month’s. Call 214-282-7980 or request a quote at aggregatesnow.com.