Invented in Russia
The first rectangular metal tank was built in the USA in 1864. The world's first cylindrical oil storage tank made of riveted steel sheets
was built by Vladimir Grigorievich Shukhov
in Baku in 1878, commissioned by the Nobel Oil Company. Prior to this, oil had been stored at Russian fields in open-air ponds.
In 1883 Shukhov proved in his work "Mechanical Structures of the Oil Industry" that the optimal shape of a tank is a cylinder, covered at the top with a conical or flat roof, with optimal wall thickness. Shukhov investigated stress distribution using 4th degree differential equations.
V.G. Shukhov standardised the main typical dimensions, so over 20,000 oil storage tanks were built in Russia according to his drawings before 1917 alone. Modern cylindrical oil storage tanks
are still built according to the principles developed by Shukhov.