Astral Oil Works became part of which branch that was owned by wealthiest American of all time?
Astral Oil Works:  Charles Pratt and Company (including Astral Oil) became part of John D. Rockefeller’s Standard Oil Trust in 1874, although the fact that Astral Oil was a New York branch of Standard Oil in Ohio was not made public until 1892. John D. Rockefeller:  Widely considered the wealthiest American of all time and the richest person in modern history, Rockefeller was born into a large family in upstate New York and was shaped by his con man father and religious mother.
i don't know