How did Standard Oil became so big?

Hi guys! I wrote an article about the history of Standard Oil and Rockefeller in my substack (in spanish). If you are interested in reading its history and at the same time practice your spanish I leave you the link here! Thanks

[https://standardhoy.substack.com/p/la-compania-que-controlo-el-mercado](https://standardhoy.substack.com/p/la-compania-que-controlo-el-mercado)

Source: Careless_Drive8779