Arabian Sea

The northwestern Arm of the Indian Ocean, the Arabian Sea sits between the Persian Gulf (via the Strait of Hormuz), the Red Sea (via the Gulf of Aden) and the Indian subcontinent. It is the convergence point for oil tanker traffic from the Gulf heading to China, India and East Asia, carrying roughly a quarter of the world's seaborne crude.

The Arabian Sea became the spillover zone for the 2026 Strait of Hormuz crisis, with approximately 20,000 seafarers and 2,000 ships stranded as shipping routes narrowed and insurance cover collapsed. The first Iranian warship sunk since 1988 went down in these waters, and seven VLCCs carrying a combined 14 million barrels of cargo clustered near Chabahar, Iran's only Arabian Sea port and outside CENTCOM's enforcement geometry, as an emerging non-Hormuz export route.

On 25 April 2026, CENTCOM extended the blockade beyond the Strait of Hormuz for the first time, seizing the LPG tanker SEVAN in the open Arabian Sea and converting a strait-contained interdiction into an open-water campaign. CENTCOM formally ended blockade enforcement on 18 June, yet the corridor has not reopened at pre-war pace: as of early July, Hormuz transits sat at 27-43 a day against an 84-a-day pre-crisis baseline, with escort convoys clearing only three to four tankers a day on seven to eight escort warships. Freight rates have eased from their $424,000-a-day peak to roughly $181,000 for the Gulf-to-China VLCC route, still about double pre-war levels.