Oman, QATAR, and Yemen are all nations located in the Arabian Peninsula. OMAN is a country located in the southeastern corner of the Arabian Peninsula, bordered by the United Arab Emirates to the northwest, Saudi Arabia to the west, and Yemen to the southwest. QATAR is a small peninsula nation located in the Persian Gulf, bordered by Saudi Arabia to the south and the United Arab Emirates to the southeast. Yemen is a country located at the southwestern corner of the Arabian Peninsula, bordered by Saudi Arabia to the north, the Red Sea to the west, and OMAN to the east. All three countries are part of the larger region known as Arabia.