Adds Ukraine strike on Russian refinery in final pragraphs
A widening Mideast Gulf conflict and mounting supply concerns propelled New York diesel prices to record highs on Tuesday.
The October Nymex ultra-low sulfur diesel (ULSD) contract settled at a record $5.2620/USG, up by 30¢/USG on the day. Because the contract serves as the pricing basis for US distillates, including diesel, heating oil and jet fuel, the rally pushed New York diesel cash prices to all-time highs.
New York Harbor (NYH) barge ULSD closed at $5.36/USG, surpassing the previous record set in April 2022. Colonial offline ULSD delivered into Linden, New Jersey, climbed to $5.31/USG, also the highest on record.
NYH barge ultra-low sulfur heating oil (ULHS) traded at October Nymex -16.50¢/USG, a gain of 2¢/USG. This helped cash prices ramp up to $5.10/USG, rising by more than 32¢/USG to a four-year high.
The market focused on how long it will take to restore Saudi Arabia's 7mn b/d East-West crude pipeline after attacks forced the key export route off line, sources said Monday. State-controlled Saudi Aramco shut the pipeline on 10 September following attacks that Riyadh said originated in Iraq. The pipeline has become increasingly important for exports since the US-Iran war disrupted seaborne crude shipments through the strait of Hormuz.
One market source said repairs are likely to take weeks rather than days, while another estimated the outage could last up to a month.
Adding to diesel supply concerns, Ukrainian drones struck Russian state-controlled Rosneft's 200,000 b/d Syzran refinery on 15 September, according to Ukraine's military general staff. The attack came just one day after US president Donald Trump said he had secured assurances from Kyiv that such strikes would cease.
On 13 September, Trump blamed record-high US retail diesel prices on Ukrainian long-range attacks targeting Russian refineries and export infrastructure. However, the more immediate driver of reduced Russian diesel availability has been Moscow's diesel export ban, which remains in effect through 30 September to curb rising domestic fuel prices.

