Standard Oil and the Cleveland Massacre

John D. Rockefeller incorporated Standard Oil of Ohio on January tenth, eighteen seventy, with one million dollars in capital and a plan that no one yet understood. At the time of incorporation, Standard was already a major Cleveland refiner. It was headquartered in Cleveland because Cleveland, sitting between the Pennsylvania oil fields and the eastern markets, was where the refining industry had concentrated. Within two years, it would become something else entirely.

In the early months of eighteen seventy-two, Standard Oil conducted what would later be called the Cleveland Massacre. In less than two months, the company absorbed most of Cleveland's rival refineries. Rockefeller's method was systematic. He approached each competitor with a calculation: Standard had negotiated secret rebates from the railroads, meaning it could ship oil at rates its competitors could not match. Standard had access to capital its competitors could not secure. Given these facts, Rockefeller would present a buyout offer. The offer was often generous, in the short term. The alternative was bankruptcy in the medium term. Most chose the buyout.

The competitors called it the Massacre because that is how it felt. They had built their businesses across years, and within a single winter they were gone, absorbed into a structure so large it was already becoming difficult to see as a single company. By the end of that decade, Standard Oil controlled about ninety percent of American refining capacity.

Rockefeller made his home in Cleveland, on Euclid Avenue, while he built the company. When the money grew large enough, he moved the company's center of gravity to New York, and eventually moved himself, though he kept his Cleveland estate at Forest Hill for decades. He had made Cleveland the oil capital of the world, briefly, and then outgrown it.

The Supreme Court broke Standard Oil into dozens of separate companies in nineteen eleven, following Ida Tarbell's investigative reporting and a federal antitrust suit. The companies that resulted, including predecessors to ExxonMobil, Chevron, and BP, were among the largest corporations on earth. The breakup made Rockefeller richer, because he held shares in all of the pieces, and their combined value exceeded the whole.