The Weekly Fill-Up | April 6-10

April 6, 2026

Early April marks the point where fuel demand shifts from anticipation to real movement across eastern South Dakota. While some areas are still waiting on ideal field conditions, others are beginning to move equipment, apply inputs, and prepare for planting. This uneven start creates a unique dynamic in fuel markets, where demand builds in waves rather than all at once.

Diesel markets are beginning to reflect that staggered activity. Instead of a sharp increase in demand, there is a steady layering effect as different operations ramp up at different times. Across the Midwest, this has resulted in gradual tightening at the rack level rather than sudden price spikes. Refinery maintenance is still ongoing in parts of the country, which means diesel production has not fully returned to peak levels. When combined with increasing agricultural demand, this creates a more sensitive supply environment where small shifts in usage can influence availability.

Another factor influencing diesel this week is the positioning behavior of buyers. As more producers begin to anticipate heavier usage later in April, there is an increase in pre-emptive purchasing. This early positioning can add pressure to local supply chains even before full planting activity begins. For Sioux Valley Coop patrons, this makes timing especially important. Staying ahead of demand by confirming deliveries early helps avoid tighter scheduling windows as activity spreads across the region.

Transportation conditions are also playing a role. With road restrictions lifting in many areas and spring weight limits easing, fuel deliveries are becoming more efficient. This improvement in logistics is helping keep supply consistent for now, but it also allows demand to scale more quickly once fieldwork accelerates. In other words, the system is becoming more capable of handling higher volume—but that volume is also coming soon.

Propane markets continue to move further into their off-season pattern. Heating demand has dropped off significantly with milder temperatures, and inventory levels remain strong across the Midwest. For most Sioux Valley Coop patrons, propane is no longer a primary concern at this stage of the year. However, it remains relevant for certain agricultural uses and rural operations, making it worth maintaining awareness of tank levels and delivery timing without the urgency seen during winter months.

Looking ahead, the next two to three weeks will likely bring a more synchronized increase in diesel demand as planting activity becomes widespread. The current period—where demand is building unevenly—is often the most flexible window for planning. Once activity aligns across the region, delivery schedules tighten and response time shortens.

The key takeaway for the week of April 6 is timing within transition. Diesel markets are gradually tightening as demand builds in stages, while propane remains stable and well supplied. For Sioux Valley Coop patrons, this is the moment to stay ahead of the curve—finalizing fuel plans before the full pace of spring fieldwork sets in.

Sources

U.S. Energy Information Administration (EIA) – Weekly Petroleum Status Report
EIA Refinery Utilization and Distillate Production Data
EIA Propane/Propylene Inventory Report
YCharts – Midwest Diesel Fuel Price Trends