Is there a cite for that explanation? That doesn't sound right to me. My understanding is that almost all Hormuz oil is crude, the refineries are elsewhere.
Which part? That GCC countries export refined Jet-A?
Kuwait was responsible for 15% of seaborne jet fuel exports in 2025 (1), something like 10% of the world's total exports. In 2024, Bahrain exported 20 million barrels of jet-a (2). South Korea, #1 in the world, exported 90 million barrels in 2025- all by sea- (3), so Bahrain isn't a dominant player, but it's still an important amount.
Obviously most of ROK's oil was crude imported to South Korea for re-export elsewhere, but the GCC has spent the last few decades trying to get up the value chain of petro-chemicals and capture more of the value themselves.
Which part? That GCC countries export refined Jet-A? Kuwait was responsible for 15% of seaborne jet fuel exports in 2025 (1), something like 10% of the world's total exports. In 2024, Bahrain exported 20 million barrels of jet-a (2). South Korea, #1 in the world, exported 90 million barrels in 2025- all by sea- (3), so Bahrain isn't a dominant player, but it's still an important amount.
Obviously most of ROK's oil was crude imported to South Korea for re-export elsewhere, but the GCC has spent the last few decades trying to get up the value chain of petro-chemicals and capture more of the value themselves.
1: https://www.vortexa.com/insights/jet-fuel-margins-hit-record... 2: https://www.data.gov.bh/explore/dataset/petroleum-products-e... Note that Bahrain's data explorer doesn't cover 2025, just 2024. 3: https://koreajoongangdaily.joins.com/news/2026-04-07/busines...