In 1911 the Supreme Court of the United States ruled, in Standard Oil Co. of New Jersey v. United States, that Standard Oil must be dissolved under the Sherman Antitrust Act.
The two largest companies formed after the split were the Standard Oil Company of New Jersey which eventually became Exxon, and theStandard Oil Company of New Yorkwhich eventually became Mobil. Exon and Mobil merged in 1999.

Exxon Mobil recently  requested permission to drill for oil on land near TR’s former homestead in North Dakota, but this past Thursday changed its mind.

http://www.inforum.com/event/article/id/394040/