Conversation so far:
who was rockefeller's business partnership with?
In 1859, Rockefeller went into the produce commission business with a partner, Maurice B.
Clark, and they raised $4,000 ($108,948 in 2017 dollars) in capital.
what kind of busiiness were they into?
In this environment of wasteful boom, the partners switched from foodstuffs to oil, building an oil refinery in 1863 in "The Flats".
what other partnership did he have?
The commercial oil business was then in its infancy.
Whale oil had become too expensive for the masses, and a cheaper, general-purpose lighting fuel was needed.

Question: what else can you tell me that is interesting?
Self-contained rewrite: Besides Rockefeller's partnership with Clark, what else was interesting in the article?