HF Sinclair and two other US refiners face a crude supply problem, and jobbers pulling from their racks should pay attention

HF Sinclair is one of three US refiners flagged as exposed to changes in Venezuelan oil supply, and that exposure runs straight to the wholesale side of the business. Refiners built to run heavy, sour crude lean on Venezuelan barrels to fill their slate. When those barrels get harder to source, the refiner either pays up for a substitute or runs less. Both show up at the rack.

Venezuela and the slate

The heavy grades Venezuela ships are what complex US refineries are tuned for, especially inland and Gulf Coast plants. Take that feedstock out of the mix and a refiner reaches for other heavy crude, which usually costs more and moves the economics of every gallon coming off the unit.

For a jobber, the risk is not the crude desk. It is availability and price at the terminal you actually load from. A refiner squeezed on feedstock can trim runs, and thinner production tightens what shows up unbranded. Branded supply tends to hold first when a system gets tight, because those gallons are committed. Unbranded is where the give happens, so marketers who lean on spot barrels could see wider rack-to-rack spreads and the odd allocation notice before anyone upstream says a word.

Watch which of the three refiners sits closest to your pull. If one of them supplies a terminal in your loading pattern, a run cut there matters more to you than the national picture.

The Iran squeeze

Long lines for gasoline in Iran, driven by war and a US blockade cutting into supply, is a foreign retail story on its face. It does not set your rack price. What it signals is that sanctions pressure and physical supply disruption are both live right now, and that combination is the same force pressing on Venezuelan flows.

Iran and Venezuela are the two heavy, sanctioned barrels the market keeps trying to price around. When both are constrained at once, the refiners set up to run that kind of crude bid against each other for the heavy oil that still moves freely. That bidding reaches a US jobber through the feedstock cost baked into wholesale gasoline and diesel.

What to watch

Whether HF Sinclair or the other two named refiners announce run cuts or feedstock switches at plants that feed your terminals. Rack spreads between branded and unbranded gallons in supply areas tied to those refiners, which could widen if heavy crude stays tight. And any move to loosen or tighten the sanctions on Venezuelan and Iranian barrels, since that is the lever that decides how long refiners keep paying up for a replacement slate.