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Delek US buys crude oil, turns it into fuels like gasoline and diesel at its refineries, and distributes those fuels and other petroleum products.
Delek US is a refiner. It takes crude oil — the thick, dirty stuff pulled out of the ground — and runs it through refineries that cook and split it into the fuels people actually use: gasoline, diesel, and jet fuel. Those fuels then get moved around and sold, mostly in the inland part of the United States where Delek's refineries sit.
The company runs two connected businesses. The refining segment does the messy industrial work of turning crude into fuel. The logistics segment owns and operates the pipelines, terminals, and storage tanks that move and hold the products. Owning some of those pipes and tanks matters because it gives Delek more control over getting its fuel to market and adds a steadier stream of fee-based income on top of the wild swings of refining. Refining is a notoriously boom-and-bust business, and that shapes everything about Delek. The profit comes from the "crack spread" — the gap between what a barrel of crude costs and what the finished fuels sell for. When that gap is wide, refiners make piles of money; when it narrows, they can lose money fast. Delek's refineries are mostly inland, which can be an advantage because they sometimes buy cheaper local crude, but they also compete with giants like Marathon Petroleum and Phillips 66, and they have to fight for the same customers.
Delek has spent years trying to look less like a pure roller-coaster refiner. It has bought back a large chunk of its own shares, sold off non-core assets to pay down debt, and pushed its logistics arm to grow. For investors, the appeal is a company that gushes cash in good years and pays a dividend, while the risk is that refining margins can turn on a dime.
Saved answer · last researched 15 Nov 2026