The body of water southeast of Oman is the Arabian Sea, a northwestern arm of the Indian Ocean. It spans approximately 3.86 million square kilometers (1.49 million square miles) and borders Oman, Yemen, Somalia, Pakistan, India, and Sri Lanka.
Notable islands include Socotra (Yemen), Masirah (Oman), and the Laccadive Islands (India). The sea is vital for regional trade, fisheries, and marine biodiversity.