The Weekly Fill-Up | April 13-17

April 13, 2026

Mid-April is when the pace of spring begins to show itself more clearly across eastern South Dakota. What started as scattered preparation is now turning into more consistent field activity, and fuel demand is beginning to reflect that shift. For Sioux Valley Coop patrons, this week is where diesel usage becomes more predictable—but also more demanding.

Diesel markets are beginning to respond to this change in rhythm. Across the Midwest, demand is no longer building in pockets—it’s expanding more broadly as planting windows start to open. This wider participation tends to put more consistent pressure on supply chains, especially as refinery maintenance season has not fully wrapped up. Even though production levels are gradually returning, they are not yet at full capacity, which keeps the market slightly tighter than it will be later in the spring.

One of the more important developments this week is how quickly local demand can accelerate once conditions align. A few consecutive days of favorable weather can bring a large number of operations into the field at once. When that happens, diesel consumption can spike in a short period of time, tightening delivery schedules and reducing flexibility. This is especially true in rural areas where delivery routes are spread out and timing becomes critical.

Another factor influencing fuel movement is the shift in transportation patterns. As more trucks are used for hauling inputs and moving equipment, diesel demand extends beyond just fieldwork. This broader usage adds another layer to overall consumption, reinforcing the need for steady supply rather than reactive purchasing.

At the same time, crude oil markets have remained relatively firm, providing a stable but elevated pricing environment for diesel. While there have not been sharp swings, the underlying strength in crude means that diesel prices are unlikely to see significant downward movement in the near term. For Sioux Valley Coop patrons, this reinforces the importance of planning based on need and timing rather than waiting for price changes.

Propane markets continue to remain stable as winter demand fades further into the background. Inventory levels are still strong across the Midwest, and with heating usage largely behind us, supply remains readily available. For most operations, propane is now in a maintenance phase—ensuring adequate levels without the urgency of winter refills. However, keeping tanks in good position now can prevent distractions later when attention is fully on fieldwork.

This week also highlights how quickly the market can move from manageable to tight. The difference between early April flexibility and late April demand pressure is often just a matter of days. As planting activity continues to expand, the margin for delayed decisions becomes smaller.

The key takeaway for the week of April 13 is momentum. Diesel demand is no longer building—it’s actively increasing across the region. Propane remains steady and well supplied. For Sioux Valley Coop patrons, this is the point where preparation transitions into execution. Staying ahead of fuel needs now helps ensure operations continue smoothly as the busiest stretch of spring takes hold.

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