1- Perdido Oil Platform - US:

Perdido is the deepest floating oil platform in the world at a water depth of about 2450 meters (8000 feet) operated by the Shell Oil Company in the Gulf of Mexico. It is located in the Perdido fold belt which is a rich discovery of crude oil and natural gas. The platform's peak production will be 100,000 barrels of oil equivalent per day. At 267 meters, the Perdido is nearly as tall as the Eiffel Tower. More details

2- Petronius Oil Platform - US:

Petronius Oil Platform

Petronius is a deepwater compliant tower oil platform operated by Chevron Corporation and Marathon Oil in the Gulf of Mexico, 210 km southeast of New Orleans, United States. A compliant piled tower design, it is 609.9 metres (2,001 ft) high, and was arguably the tallest free-standing structure in the world, until surpassed by the Burj Khalifa in 2008, although this claim is disputed since only 75 metres of the platform are above water. The multi-deck topsides are 64 metres by 43 metres by 18.3 metres high and hold 21 well slots, and the entire structure weighs around 43,000 tons. Around 8,000 m3 (50,000 barrels) of oil and 2,000,000 m3 (70 million cubic feet) of natural gas are extracted daily by the rig. More details

3- CNOOC 981 Oil Platform - China:

CNOOC 981 Oil Platform

On May 9, 2012 China's first deep-water drilling platform CNOOC 981 successfully completed its first drilling on the South China Sea, and the drill reached the layer of the ground 1,500 meters under the sea surface in the 6-1 area of the Li Bay of the South China Sea. It is the first time that China has carried out deep-water oil and gas exploitation independently, indicating that the deep-water strategy of China's offshore oil industry has taken a practical step. the CNOOC 981 is equipped with eight 44,000-kilowatt diesel generators whose total capacity can support the electricity consumption of a medium-sized city. It has eight thrusters, and the power of each of them is equal to that of five locomotives. More details

4. Baldpate Oil Platform - US:
Baldpate Oil Platform

Baldpate is located in 1,650ft of water, in Garden Banks (GB) block 260, 120 miles off the Louisiana coast. This is the first free-standing offshore compliant tower ever, as well as one of the tallest free-standing structures in the world. The tip of the flare boom extends 1,902ft above the seafloor. The discovery well was drilled by the semisubmersible Ocean Rover in late 1991, revealing 180ft of net pay. Total output from seven planned production wells will exceed 50,000b/d and 150,000MMSCFD. Anticipated recoverable reserves from Baldpate and Baldpate North total 104 million barrels of oil equivalent (MMBOE), of which 60% is oil and the remainder is gas. Production from the platform reached its peak in the first half of 1999, at rates approaching facility oil and gas capacities. More details

5. Atlantis Oil platform - US:

Atlantis Oil platform

Atlantis platform is the deepest moored floating dual oil and gas production facility in the world. The platform is located 190 miles south of New Orleans in 7,070ft (2,150m) of water, the field itself occupying five blocks – Green Canyon 699, 700, 742, 743 and 744 – with water depths ranging between 4,400ft and 7,100ft (1,338m and 2,158m). Originally scheduled to start in 2006, the hurricane of the 2005 season delayed progress and hiked prices, Atlantis finally produced its first oil in October 2007, with full commissioning – and a ramp up in production – following in mid-December. Initially producing at a daily rate of around 10,000 barrels of oil, Atlantis reached plateau production by the end of 2008. It has a production capacity of 200,000 barrels of oil and 180 million cubic feet of gas a day. More details

6. Berkut Oil Platform - Russia:

Berkut Oil Platform

The platform “Berkut” is 25 kilometers from the northern part of Sakhalin Island, offshore in the Sea of ​​Okhotsk, on the Russian Pacific coast. According to experts, after reaching full capacity, the platform will be the largest in the world by the volume of hydrocarbons produced per year. The platform “Berkut” is specifically designed to operate in harsh subarctic conditions and can withstand waves up to 18 meters, pressure of ice fields up to two meters thick and temperatures down to minus 44°C. The weight of the base of the platform – 160,000 tons, its perimeter – 100 at 133 meters, height – 50 meters. The platform is designed for production of up to 4.5 million tons of hydrocarbons per year. More details

7. Troll A platform - Norway:

Troll A platform

The Troll A platform is a condeep offshore natural gas platform in the Troll gas field off the west coast of Norway. It is the tallest structure that has ever been moved to another position, relative to the surface of the Earth, and is among the largest and most complex engineering projects in history. The platform was a televised sensation when it was towed into the North Sea in 1996, where it is now operated by Statoil. More details