The Weekly Fill-Up | March 2-6

March 2, 2026

The first week of March signals a clear transition period for fuel markets across South Dakota. While winter isn’t fully behind us, the conversation is beginning to shift from heating demand to field preparation. For Sioux Valley Coop patrons, this week presents an important opportunity to prepare ahead of seasonal momentum.

Diesel fuel markets across the Midwest have remained relatively balanced in recent days, but underlying dynamics are beginning to change. Refinery maintenance season is now underway across several regions of the United States. During this time, refineries temporarily reduce output to prepare for summer-grade fuel production. Historically, this can tighten diesel supply margins if demand increases simultaneously. While there has been no sharp price movement yet, March is often when early positioning makes the most difference. As spring fieldwork approaches and agricultural diesel consumption begins to climb, securing supply ahead of that demand curve can help stabilize costs.

In South Dakota specifically, mild late-winter weather has helped reduce transportation disruptions, allowing deliveries to move consistently. That logistical stability provides a window to review bulk diesel storage levels and adjust purchasing plans before planting preparations accelerate. Even small adjustments in timing can make a meaningful difference once demand increases statewide.

Propane markets are also transitioning. National propane inventories remain above the five-year average, reflecting a strong starting position exiting winter. With recent above-average temperatures across much of the Upper Midwest, heating-related propane draw has moderated compared to earlier in the season. For rural South Dakota operations, this creates a moment to reassess tank levels without urgency pressure. However, propane demand does not disappear in the spring. Agricultural drying, livestock facilities, and rural heating needs remain consistent. Reviewing fill schedules now ensures continuity as attention shifts toward fieldwork.

Another factor worth watching this week is crude oil market volatility. Global crude benchmarks have shown modest fluctuations tied to international production adjustments and economic outlook forecasts. While those movements have not directly translated into large Midwest diesel price swings yet, crude volatility often works its way downstream over time. Monitoring local rack trends and planning diesel purchases strategically through March can help mitigate risk if broader markets tighten.

The key takeaway for the week of March 2 is proactive transition. Diesel markets are stable but entering a historically tighter phase due to refinery maintenance. Propane supply remains strong but is shifting away from peak winter demand. For Sioux Valley Coop patrons, using this week to review storage capacity, confirm delivery cadence, and align purchasing plans with upcoming seasonal activity positions operations for a smoother start to spring.

Preparation in early March often determines how predictable the next few months feel. Sioux Valley Coop remains focused on delivering dependable fuel and propane solutions that support that transition — keeping local operations steady, efficient, and powered locally.

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