Iran denies being at war with Saudi Arabia after drone strike hits critical oil pipeline

Iranian President Masoud Pezeshkian went on record September 12 to declare that his country is “not at war with Saudi Arabia,” a statement that carries a certain urgency when you consider what prompted it: a swarm of drones had just struck one of the most important oil arteries on the planet.

The attack, which hit Saudi Arabia’s East-West pipeline around September 10-11, targeted areas near Riyadh and Medina and resulted in several injuries. The pipeline, stretching roughly 1,200 kilometers across Saudi territory, carries an estimated 4-5% of the global oil supply. Saudi operators shut it down as a precautionary measure, a move that sent immediate ripples through energy markets.

What happened and who’s responsible

The drones were reportedly launched from Iraq’s Maysan province, a detail that complicates an already tangled web of regional allegiances. No group has formally claimed responsibility for the strike.

Iran-aligned militias in Iraq denied direct involvement but expressed pride at the potential military achievement of striking Saudi targets.

US President Donald Trump weighed in with an assessment that Iran was “probably” behind the attack, a characterization that Tehran has pushed back against. Pezeshkian’s public denial appears calibrated to prevent the situation from spiraling into a direct Saudi-Iranian confrontation.

Saudi Arabia opted against an immediate retaliatory strike. That restraint reportedly came at the request of Baghdad, which finds itself in the uncomfortable position of hosting the militias suspected of carrying out the attack while simultaneously trying to maintain diplomatic relationships with both Riyadh and Tehran.

The pipeline’s outsized importance

The East-West pipeline allows Saudi Arabia to ship crude from its eastern oil fields to the Red Sea port of Yanbu, circumventing the Strait of Hormuz entirely. That makes it a backup plan for roughly 4-5% of global oil supply. As a direct response to heightened tensions in the Strait of Hormuz, Saudi Arabia had rerouted substantial volumes of crude oil through the pipeline to maintain export capabilities prior to the attack.

Regional diplomacy on a knife’s edge

Pezeshkian’s statement went beyond simple denial. He called for regional cooperation and specifically urged countries like Turkey and Pakistan to help establish a comprehensive security framework for the Middle East.

The Iraqi government has launched an investigation into the attack and is conducting joint probes with Iranian officials to address the cross-border nature of the operation.

The broader context matters here. The attack occurred against a backdrop of escalating tensions involving the US, Israel, and Iran across multiple theaters. Saudi Arabia and Iran had been working to normalize relations following a China-brokered deal in 2023, and incidents like this pipeline strike test the durability of that rapprochement.