Iran's oil exports continue to flow through the Strait of Hormuz despite a regional conflict, generating an estimated $139 million per day in March, according to Bloomberg calculations based on export data from Tankertrackers.com [1].
The daily revenue represents an increase of nearly $25 million from February's average of $115 million daily proceeds from Iranian Light crude, Bloomberg reported [1]. The resilience of Iran's oil shipments contrasts with the situation for other Gulf producers, whose supplies remain largely unable to transit the strategic waterway due to the ongoing crisis.
Export volumes have remained resilient, with maritime intelligence firms reporting steady shipments. Windward, a maritime intelligence firm, stated on March 26 that Iranian crude exports remain relatively steady [2].
The discount for Iranian Light crude versus the international benchmark Brent has narrowed significantly. Before the crisis, the discount was more than $10 per barrel; this week it stood at approximately $2.10 per barrel [2]. This narrowing discount, coupled with higher global prices, directly increases the per-barrel revenue Tehran captures from each shipment.
Iran is one of the few Gulf producers able to transit oil through the Strait of Hormuz unimpeded, according to reports [2]. This logistical advantage has allowed it to maintain export flows while competitors face constraints.
The broader supply shock from the regional conflict has driven international benchmark prices above $100 per barrel, increasing per-barrel revenue. Brent crude was trading at about $105 a barrel early on March 26 [2]. The combination of resilient volumes and these higher prices has been bringing millions of dollars of additional oil revenues for Iran since the war began [2].
The primary market for Iranian crude consists of independent refiners in China, according to market analysts [2]. This established customer base has continued to purchase Iranian oil despite the broader disruptions.
A U.S. waiver on Iranian oil sales has been cited as a factor contributing to the narrowed price discount, though it has not significantly expanded the customer base beyond the Chinese independent refiners, according to reports [2]. U.S. Treasury Secretary Scott Bessent indicated on March 19 that the Trump administration is considering lifting sanctions on Iranian crude oil currently held on tankers at sea [3].
Most other Gulf oil supplies remain unable to transit the Strait of Hormuz due to the ongoing crisis. Saudi Arabia and other producers are attempting to bypass the strait by increasing exports from alternative ports like Yanbu [4].
This logistical advantage has allowed Iran to maintain export flows while competitors face constraints. Traffic through the strait, normally the conduit for a fifth of global oil output, has been severely curtailed since the start of the Iran conflict [5]. Iran itself, however, is shipping oil through the strait at a rate of 1.1 million to 1.5 million barrels per day, according to TankerTracker.com and Kpler data [6].
The combination of resilient volumes, higher global prices, and a reduced discount has resulted in substantially higher daily oil revenues for Iran. The situation illustrates how regional disruptions can create divergent outcomes for different producers within the same geography.
The ongoing crisis underscores the critical importance of the Strait of Hormuz as a global energy chokepoint. Roughly one-fifth of the world’s oil consumption and a similar share of global LNG trade pass through this narrow maritime corridor [7]. The disruption has triggered national energy emergencies in countries heavily reliant on Gulf oil, such as the Philippines [8].