Why was Standard Oil referred to as a “corporation of corporations?” because Rockefeller and his partners made all of their businesses a part of the Standard Oil Trust

because Standard Oil controlled all aspects of the oil industry

because Rockefeller himself owned all of the corporations that made up the Standard Oil Trust

Explanation:

In 1870, John D. Rockefeller created Standard Oil, a company that would go on to create the foundations of the modern oil & gas industry, force new business laws to be created, and become the first monopoly in the U.S.

Creating and Dominating an Industry

What started as a pure-play refinery in 1870, Standard Oil (“SO”) became a fully integrated, industrial behemoth with a 90% market share in kerosene refining, and perhaps one of the most effective corporations ever created. In fact, SO was such an effective company, that the U.S. government had to create a new law – the Sherman Antitrust Act of 1890 – specifically to combat the market power that SO (the first trust ever created) had built for itself.

The Value Proposition and Business Model

Kerosene was the refined version of crude oil that powered the U.S., and many of the developed global economies, for most of the latter half of the 19th century. In the 1860s the process for refining was inefficient and resulted in products of inconsistent quality. As a result, the refining process was expensive, wasteful, and produced low yields. Procurement of inputs was also expensive; crude oil was transported by rail in individually filled wooden barrels that were time consuming to fil, often leaked, and were expensive to produce. Furthermore, given the low yield of refiners, railroads often had to stop at many small refiners to get a full load and thus had to charge higher costs to maintain profitability.

because Rockefeller and his partners made all of their businesses a part of the Standard Oil Trust

Explanation:

they took a lot of smaller businesses and they brought them all together, they combined them into one very large business.

a.tensions between the colonial elites and the backcountry men of virginia.