A South Korean-operated oil tanker became the first vessel from the country to transit the Strait of Hormuz since the Middle East conflict began [1, 2].

The successful passage of the Universal Winner signals a potential reopening of one of the world's most critical oil routes. This movement follows a period of severe maritime disruption that threatened global energy supplies and spiked fuel costs.

Owned by the shipping company HMM, the vessel carries approximately 2 million barrels of crude oil [3] and has a tonnage of 300,000 tons [3]. The ship arrived at Ulsan Port on Wednesday, May 20, 2026 [2, 4]. According to tracking data, the tanker arrived around 2:30 p.m. and completed its docking by 3:50 p.m. [3].

"A vessel operated by a South Korean shipping company was currently passing through the Strait of Hormuz, which, if successful, would mark the first such case involving a Korea‑managed ship since the outbreak of the war," Cho Hyun said [4].

The transit ended a 102-day blockade of the strait [1, 5]. The blockade began with the outbreak of the Middle East war, effectively halting Korean-managed shipping through the corridor [1, 5].

Market reactions to the news were immediate. Crude oil prices fell by $5.89 per barrel after reports surfaced that tankers were clearing the strait [6].

Reports regarding the timeline of the voyage vary. Some sources indicate the tanker arrived in Ulsan the same day it cleared the strait [1], while other reports suggest it arrived off the coast about three weeks after exiting the corridor [7].

The Universal Winner is the first Korean-managed vessel to transit the Strait of Hormuz since the outbreak of the Middle East war.

The return of Korean-managed tankers to the Strait of Hormuz suggests a shift in the security landscape of the Middle East conflict. Because the strait is a primary chokepoint for global oil transit, the successful passage of a 300,000-ton vessel indicates that insurance risks and military threats may have decreased enough to allow commercial operations to resume, which typically puts downward pressure on global oil prices.