Wheatland Gas & Diesel Watch: Sinclair shows $4.39 regular, $4.53 diesel as WY averages rise

Wheatland drivers are seeing another uptick in both regular gas and diesel prices. AAA’s latest price check shows Wyoming averages are higher than yesterday, and EIA’s latest weekly update shows U.S. gasoline and on-highway diesel up versus the prior week. In Wheatland, Way’s estimated station prices show Sinclair (81 Swanson Rd) at $4.39 regular and $4.53 diesel, while I-25 Pit Stop (1857 W Mariposa Pkwy) lists $4.25 regular and $4.52 diesel.

Important: Way’s numbers are estimated prices and can change by pump and throughout the day—so treat them as a quick “what to expect” check, not a guarantee of what’s on the dispenser.

Pump snapshot in Wheatland (Way estimated prices)

• Sinclair, 81 Swanson Rd: Regular $4.39 / Diesel $4.53
• I-25 Pit Stop, 1857 W Mariposa Pkwy: Regular $4.25 / Diesel $4.52

AAA Wyoming averages: up vs yesterday for both regular and diesel

AAA’s Wyoming statewide averages are back up the “prices are rising” feeling. For regular, AAA lists $4.0020 as of 7/17/26, up from $3.9610 yesterday. For diesel, AAA lists $4.7020 as of 7/17/26, up from $4.6540 yesterday.

Compared with a week ago, the uptrend is still clear in the averages: regular is higher than $3.8710 a week ago, and diesel is higher than $4.5510 a week ago.

National context + federal weekly check

On the national side, AAA also shows a higher day versus yesterday: $3.9810 for regular (up from $3.9430) and $5.0580 for diesel (up from $5.0050)—both as of 7/17/26.

EIA’s latest weekly update (released July 14, 2026, covering data through 07/13/26) adds another “up vs last week” confirmation for U.S. prices. EIA reports U.S. regular gasoline at $3.855, up $0.078 vs week ago, and U.S. on-highway diesel at $4.796, up $0.218 vs week ago.

Local takeaway for commuters, contractors, and anyone budgeting repeat fill-ups

If you’re planning multiple stops this week—commuting, delivery work, fleet fueling, or weekend errands—the Wyoming-wide uptick matters because fuel spending stacks quickly. In Wheatland, the station estimates put diesel just above (or right around) the $4.50 mark at both listed stops, while regular ranges from the low-$4s to the high-$4s depending on where you pull in.

Practical move: before you fill up, check both grades at the nearest options you actually use. The spread between stations (and between regular vs diesel) can change the total cost of a week’s driving.

Question for readers: What are the highest and lowest regular and diesel pump prices you’re seeing in Wheatland right now? Share the numbers (and the station) so neighbors can compare.

Sources

• AAA Fuel Prices — Wyoming average (price as of 7/17/26)
• EIA — Gasoline and Diesel Fuel Update (weekly U.S. prices)
• Way — Sinclair in Wheatland (81 Swanson Rd) estimated prices