Also see the consequences of what will happen if the Strait of Hormuz is closed below...
Hizbullah Website Features Infographic On Closing The Strait Of Hormuz, Illustrates Iranian Attack On U.S. Aircraft Carrier
The official Hizbullah website www.english.moqawama.org, along with the Iranian weekly Panjereh (http://panjerehweekly.ir), published an infographic titled "Hormoz [sic] Straits– A Choke Point In the Hand of the IRGC [Islamic Revolutionary Guards Corps]."
The infographic simulates an attack on a U.S. aircraft carrier in the Strait of Hormuz using IRGC missiles, including the Nasr (3 ton cruise missile with anti-ship capabilities), Zafar (short range radar guided missile fired from swift watercraft), Khalij-e Fars (solid fuel ballistic missile with a range of 300 km), Saeqhe (a missile with a range of 300 km), Tondar (a ballistic missile fired from land), Qader (a cruise missile with a range of 200 km, designed for aircraft and watercraft), Noor (A surface-to-sea or sea-to-sea missile with a range of 170 km), and Kowsar (a surface-to-sea, sea-to-sea, and air-to-sea medium range, radar and TV guided missile).
The data is available in the original by clicking on each missile.
In the intro to the infographic, the author, Hadi Mousavi (a Shi'ite, judging by the name), mentions the 1986 Iranian threat to close the Strait of Hormuz during the Iran-Iraq War, when Iran's IRGC forces were up against an Iraqi force supported by the U.S. It should be mentioned that Iran did not close the strait during the war.
The publication of the infographic by Tehran's proxy, Hizbullah, indicates that the former, which is currently facing harsh sanctions, is attempting to convey threats to the international community through all available channels. The infographic was also published in French and Arabic.
 http://www.english.moqawama.org/ . It should be mentioned that there is a typo in the name of the weekly Panjereh, and that the updated infographic does not appear on their website yet. Members of the military, government, and media may request a copy of the full link, send an email with the title of the report in the subject line to firstname.lastname@example.org. Please include your name, title, and organization in your email.
The World's Most Important Oil Choke-point
The Strait of Hormuz tops the list of global energy security concerns. Leading into the Gulf of Oman and the Arabian Sea, the strait is the only possible route for tankers transporting crude from the oil-rich states of the Gulf to world markets. Iran controls the strait’s northern coast, while Oman and the United Arab Emirates own the southern coast. The entire strait is only 112 miles long, and at its narrowest point it is only about 21 miles wide.
According to the U.S. Energy Information Administration, daily oil flow through the strait amounted to almost 17 million barrels in 2011, up from between 15.5-16.0 million in 2009–2010, that constituted roughly 35 percent of all seaborne traded oil. Roughly 90 percent of all Gulf oil, or 20 percent of oil traded worldwide, leaves the region on tankers that must pass through this narrow waterway, as land pipelines do not provide sufficient alternative export routes.
Here is a PDF with wonderfully detailed information regarding Iran’s Threat to the Strait of Hormuz. This PDF is by the CONGRESSIONAL RESEARCH SERVICE