different types of processes in the petroleum industries.
The various companies and functions involved in the petroleum industry are normally classed in one of three different categories, with acknowledgments that some companies engage in a series of activities that cross over these class boundaries. [ One category is known as upstream functions, which include the process of exploration that ultimately results in the location of petroleum reserves.
This particular category also includes the refinement and development of crude oil or natural gas that can then be passed on to other companies for use in the creation of a wide range of goods and services. ...........Midstream functions often focus on the processes used to transport petroleum and petroleum-based products to manufacturers who use the products in the creation of different goods or services. Within this category, one common example are oil tankers used to move the collected petroleum from one location to another. Oil pipelines that transport oil over land is another example. Essentially, any company involved in the transport of petroleum in any form would be considered a midstream company. ............. ]
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