Key Highlights

● Heating oil rose 2.59% to $4.71 a gallon in Friday's session.

● Heating oil is still down 5.53% on the week and up 96.30% on the year.

● US distillate stocks fell 1.5 million barrels to 102.8 million barrels.

● The US plans to lend 315,000 barrels from the Northeast Home Heating Oil Reserve.

Heating oil rose 2.59% to US$4.71 a gallon in Friday's session on 30 October, rebounding with crude as Iran tensions returned to the market. The move matters to refiners such as Valero (NYSE:VLO), which make diesel, and to distributors such as Star Group (NYSE:SGU), which buy heating oil and sell it to households.

The gain of US$0.12 leaves the contract down 5.53% on the week and up 1.43% on the month, but 121.94% higher since the start of the year and 96.30% above a year ago. The NYMEX contract is formally New York Harbor ultra-low sulphur diesel (ULSD), and traders call it heating oil even though it prices diesel for trucks and farms as much as home heating.

A Rebound Inside a Weekly Decline

Heating oil spent much of the week falling and Friday's rise does not reverse that. It followed crude, with WTI up 2.85% and Brent up 3.06%, after reports that a senior US military commander had briefed President Donald Trump on Options for renewed strikes against Iran. Gasoline rose 3.01% on the day, so the whole fuel complex moved higher together.

Thin Stocks Keep a Floor Under Prices

Distillate inventories are the reason prices stay elevated. The Energy Information Administration reported distillate stocks down 1.5 million barrels to 102.8 million barrels in the week ended 23 October, a larger fall than the 0.9 million barrels analysts expected, and they sit about 10% below their five-year seasonal average. Refinery utilisation slipped 0.6 percentage points to 92.8%.

Refiners are prioritising diesel ahead of winter, which limits gasoline output but does not yet rebuild distillate cover. With winter heating Demand ahead, the market has little room for a Supply shock.

Policy Efforts to Add Supply

Policymakers are trying to ease the squeeze. The United States plans to lend up to 315,000 barrels from the Northeast Home Heating Oil Reserve, a small Volume against national consumption. The first Russian diesel cargo for the United States is due on 7 November, after the midterm elections, according to reports. Europe plans to release 42 million barrels from strategic reserves over three months, much of it diesel, and extra Chinese fuel-export quotas are expected to improve availability.

Those measures explain the weekly fall, and the Middle East explains Friday's bounce. The tug between the two is the central feature of the diesel market at the moment.

What It Means for Refiners and Distributors

Valero refines distillates alongside gasoline, so its Margin depends on the gap between diesel and crude, not the diesel price alone. It reported third-quarter net profit of US$6.828 billion and refining operating profit of US$8.782 billion on 22 October, with throughput near 3 million barrels a day. Marathon Petroleum (NYSE:MPC) is another large refiner with the same crack-spread sensitivity.

Star Group sits at the other end of the chain. It distributes home heating oil, so it buys the product and sells it to households, and its margins depend on how well it can pass on costs. Warm weather can reduce volumes, so the cold-weather outlook matters as much as the wholesale price.

Diesel Watch: Distillate Stocks, Russian Cargoes and Winter Weather

The EIA publishes its next weekly report on Wednesday and will update distillate stocks. The first Russian diesel cargo, due on 7 November, is a date to follow, as are winter weather forecasts and the 3 November midterm election.

Prices could climb if talks with Iran fail, if attacks on Gulf infrastructure widen, if cold weather lifts heating demand or if the Russian cargo is delayed. They could weaken if shipments arrive, if reserve releases add supply or if crude falls on diplomacy.