The Internet can be used in in different ways: for distributing and retrieving information, for one-to-one, one-to-many and many-to-many communication, and for the access services. Accordingly, there are different services on offer. The most important of these are listed below.
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Formerly (until 1972) Standard Oil Company, Exxon is one of the world's largest corporations in terms of sales, with investments and operations in petroleum and natural gas, coal, nuclear fuels, chemicals, and such ores as copper, lead, and zinc. It also operates pipelines and one of the world's largest fleets of tankers and other ships. Exxon engages in every phase of the petroleum industry from oil fields to service stations. It is headquartered in Irving, Texas, a suburb of Dallas.