US Base Oil Prices Surge 7.41%  Amid Strait of Hormuz Disruption and Diesel Price Spike

US Base Oil Prices Surge 7.41% Amid Strait of Hormuz Disruption and Diesel Price Spike

Dante Alighieri 27-Mar-2026

Base Oil Group II H 100 FOB Texas surged during mid-March 2026, up +7.12% from the prior week. The rise reflects continued bullish momentum driven by escalating crude oil prices amid the Strait of Hormuz closure, tightening global supply and raising feedstock costs. U.S. producers, including ExxonMobil, Calumet, SK Enmove, HF Sinclair, Chevron, Excel Paralubes, and Avista Oil, implemented back-to-back hikes, while spot export offers were largely suspended. Rising freight rates and seasonal spring lubricant demand further reinforced upward pressure. Downstream, lubricant manufacturers responded with price increases: Martin Lubricants (+15%), Amalie (+48 cents/gal; grease +7 cents/lb), Highline Warren (+16%), and Omni Specialty Packaging (+50 cents/gal). Diesel price spikes threaten base oil margins, as refinery economics may favor gasoil over base oils. Mid-March pre-buying, inventory accumulation, and automotive demand for API CK-4/FA-4 oils supported the rally.

Base Oil Group II H xxx FOB Texas jumped to x,xxx.xx USD/MT during mid-March xxxx, posting a gain of xxx.xx USD/MT or +x.xxx from the previous week’s x,xxx.xx USD/MT. The sharp base oil increase reflects a continuation of bullish momentum driven by rising feedstock crude oil prices following the ongoing closure of the Strait of Hormuz, which has severely tightened global supply and escalated costs.

Several major base oil U.S. producers implemented back-to-back price hikes in response to this supply-demand imbalance. ExxonMobil, Calumet, SK Enmove, and HF Sinclair communicated a second round of increases after earlier revisions in March, while Chevron, Excel Paralubes, and Avista Oil introduced their first base oil hikes since the onset of the Iran conflict. Spot offers were largely suspended, particularly for exports, as domestic and Latin American contract obligations took precedence. Tight domestic supplies, combined with rising freight rates...

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