The process of drilling was first accomplished in the state of Pennsylvania, USA. The process involves pumps, extensive and complicated pipeline system, and storage tanks. After the completion of the drilling process, the transportation of the same to the refinery or storage site becomes important which could be accomplished through tankers meant for transporting of liquid petroleum, oil barges, pipelines and tank cars.
The storage system of the petroleum products require additional prominence. Generally, the storage of the same is done in the tanks which comes in wide varieties. They are tanks with cylindrical structure and flattened roof, tanks which possess floating top, tanks that are characterized by spherical shape, tanks meant for butane, specialized tanks for storing ammonia known as Hopper tanks. There are also tanks of special nature which are utilized for the storage of natural gases and are generally called "wet and dry gasometer".
Refining is the most important part of the World Petroleum Industry which in fact is responsible in extracting the usable petroleum out of its crude form.
For knowing more about World Petroleum Industry one has to go through the different markets and their respective developments in this field. To get an over view of this market, one needs to browse through the following links :-