History
John D. Rockefeller built Standard Oil into one of the most powerful industrial organizations of the 19th century. The wealth system combined refining, transport contracts, pipelines, distribution, cost control, acquisitions and aggressive consolidation. Rather than simply owning oil, the model controlled the infrastructure and economics around oil refining and distribution.
Philosophy
This is a scale-and-control portfolio. The goal is to own the bottlenecks, reduce unit costs, reinvest cash flow and turn operational superiority into pricing power. It compounds through integration and discipline, but it carries political and regulatory risk: once private market power becomes too visible, antitrust pressure becomes part of the investment case.