 In 1886, after acquiring many other oil companies, the Standard Oil Trust organized territories for their companies.Atlantic's territory covered the entire state of Delaware, the southern half of New Jersey, and the southeasternmost corner of Pennsylvania, essentially giving Atlantic the entire Philadelphia area.Due to antitrust issues that would eventually lead to the demise of the Trust in 1911, Atlantic absorbed fellow Standards Acme Oil of Pennsylvania and Pittsburgh-based Standard Oil (of Pennsylvania) in 1892.