Persian Gulf at its narrowest, in the Strait of Hormuz. The waters are overall very shallow, with a maximum depth of and an average depth of . Countries with a coastline on the Persian Gulf are (clockwise, from the north): Iran; Oman's Musandam exclave; the United Arab Emirates; Saudi Arabia Qatar, on a peninsula off the Saudi coast; Bahrain, on an island; Kuwait; and Iraq in the northwest. Various small islands also lie within the Persian Gulf, some of which are the subject of territorial disputes between the states of the region. The International Hydrographic Organization defines the Persian Gulf's southern limit
Persian Gulf Residency will seriously affect the position or the rulers of the British government…' The same author also refers to what he terms "political agreements", to which, he says, oil companies’ are all bound… with the British government… in addition to their concession agreements with the rulers…' 'One of the main objects of these', he continues, 'is to ensure that their relations with the rulers in all matters of importance are conducted through, or with, the knowledge of British political officers'. Agents: Chief political residents of the Persian Gulf : Persian Gulf Residency The Persian Gulf Residency was an official colonial subdivision