Iran has shipped only 4.1 million barrels of LPG, equivalent to around 350,000 tons, since the blockade began, Reuters reported, citing informed sources and shipping data.
Data from Kpler and Vortexa obtained by Iran International show the figure was around 30 million barrels, or 2.6 million tons, over the same period last year.
Vortexa and Kpler estimate Iran's LPG exports in 2025 at between 10.5 million and 11 million tons, worth more than $5 billion.
Iranian Chamber of Commerce data show exports of 9 million tons of propane and butane worth $4.35 billion during the Iranian financial year that ended on March 20, 2026.
The figures cover different periods and may also reflect differences in methodology, but both point to the scale of Iran's LPG exports before the war.
War impact
A document from Iran's National Iranian Oil Products Distribution Company obtained by Iran International last year shows that the country's oil refineries produced around 2.4 million tons of LPG, half of which was consumed domestically and the remainder exported.
The South Pars gas processing facilities, serving Iran's largest gas field, produced around 7 million tons, with the rest coming from other gas facilities and petrochemical plants, mainly in Assaluyeh and Mahshahr.
In total, Iran produced around 13 million tons of LPG last year, about 80% of which was exported. Under normal conditions, domestic demand is below 2 million tons annually.
Iran has cut crude oil production since the halt in oil exports. According to OPEC estimates, daily output fell from around 3.26 million barrels in 2025 to 1.96 million barrels in September, a decline of about 40%.
The war has also affected Iran's other major sources of LPG. Israel targeted gas processing units at South Pars as well as petrochemical plants in Assaluyeh and Mahshahr.
Iranian officials say the initial loss of 230 million cubic meters of South Pars gas production has since narrowed to around 100–130 million cubic meters as damaged units returned to operation.
The head of Iran's National Petrochemical Company says around 60% of damaged petrochemical units have also been rebuilt and returned to operation.
Based on these figures, Iran's LPG production may have fallen by around 20–25% since the war, bringing annual output to roughly 10 million tons, comparable to 2020 levels.
But production has fallen far less sharply than exports, potentially leaving Iran with millions of tons of surplus LPG.
Lessons from 2020
Iran faced a similar, though less severe, problem at the height of US sanctions in 2020.
Kpler and Vortexa data show LPG exports that year were less than half last year's level, while Iranian official statistics indicate domestic consumption rose about 2.5-fold to around 5 million tons, roughly half of production.
Even then, Iran continued exporting LPG, shipping 4.4 million tons in 2020 and 5.8 million tons in 2021.
With seaborne exports now sharply curtailed, Tehran could again divert more propane and butane to domestic use, including limited injection into the national gas network or use as fuel by industries and power plants equipped to burn LPG.
That could help ease Iran's recurring winter gas shortages and reduce the need to burn fuel oil, or mazut, at power plants and industrial facilities, a major source of air pollution.
There are limits to how much LPG Iran can absorb at home. Substitution depends on technical constraints, available infrastructure and domestic demand.
Even if some of the surplus can be redirected domestically, a prolonged blockade could deprive Iran of an LPG export trade worth around $5 billion annually before the war, compounding the much larger loss of oil export revenue.