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".

Question: what other partnership did he have?
Self-contained rewrite: Aside from his partnership with Maurice B. Clark, did Rockefeller have any other partnerships?