What is the large body of water located southeast Oman?

The large body of water southeast of Oman is the Arabian Sea. The Arabian Sea is a part of the Indian Ocean and is bordered by Oman, Yemen, Somalia, Pakistan, India, and Sri Lanka. It is approximately 3,862,000 square kilometers (1,491,000 square miles) in area. The Arabian Sea is home to various islands, including the Socotra archipelago (Yemen), Masirah Island (Oman), and the Laccadive Islands (India).