RoydadNaft –  Brent crude futures rose $1.67, or 1.58%, to $107.35 a barrel. U.S. West Texas Intermediate (WTI) futures gained $2.14, or 2.11%, to $103.53 a barrel.

According to Roydad Naft, oil prices rose more than 1% on Tuesday after attacks on Saudi energy infrastructure knocked the kingdom’s East-West pipeline offline and raised concerns that repairs to damaged energy facilities and transit routes could take longer.

Brent crude futures were up $1.67, or 1.58%, at $107.35 a barrel by 10:02 a.m. GMT. U.S. West Texas Intermediate futures rose $2.14, or 2.11%, to $103.53 a barrel.

Supply concerns intensified after fresh attacks by Yemen’s Houthi forces on Saudi Arabia on Monday, while Arab Gulf states postponed planned talks with Iran.

Hamad Hussain, senior climate and commodities economist at Capital Economics, said: “The latest Houthi attacks on Saudi Arabia may have shifted oil-market investors’ expectations about the intensity and duration of the conflict.”

The Houthis said Monday they had fired dozens of missiles and drones at the Khamis Mushait military air base in southern Saudi Arabia, targeting aircraft hangars, radar systems, runways, and ammunition depots. The strike was in response to Saudi airstrikes in Yemen.

The attack followed Friday’s strikes on Saudi Arabia, which Riyadh attributed to Iran-backed fighters in Iraq and which disrupted the East-West pipeline. That line allows oil exports that bypass the blocked Strait of Hormuz, which previously carried about one-fifth of global oil supply.

Buyers and traders said Saudi Arabia could exhaust export-ready crude stocks within days unless the East-West pipeline is restored. The attack on the pipeline threatened as much as 4% of global oil supply.

Goldman Sachs said in a note: “The latest attack may be more severe and threaten the remaining exports of about 2 million barrels a day through Yanbu. Fresh estimates of repair time range from ‘very soon’ to eight weeks.”

The bank added that attacks on oil infrastructure represent a meaningful escalation of the conflict and have raised the odds of Brent moving above $120 a barrel. Goldman Sachs outlined a scenario in which average Gulf oil output in 2027 remains 4 million barrels a day below pre-war levels.

Preliminary Kpler data showed cargo-carrying vessel transits through the Strait of Hormuz fell to four on Monday from 10 the previous day, heightening concern over a route that carried about one-fifth of global oil supply before the U.S.-Israel war against Iran began on February 28.

Oman’s Maritime Security Centre said Tuesday that the Panama-flagged tanker El Gaia is being towed to an Omani port after an engine-room fire following an attack.

Hussain added: “Without a demand adjustment or an increase in oil flows through the Strait of Hormuz, several weeks of East-West pipeline downtime could push Brent toward $130 a barrel.”

Separately, Reuters calculations based on data from fuel-market participants show that half of Russia’s six top diesel-producing refineries have been forced to cut output sharply or shut completely in September because of damage from drone attacks.