Where does the name come from?

Oiler historically is a person working on an engine of an industrial mechanism. It is a tribute to hard working protocol engineers and builders. It is also a word play on oil (Ethereum gas), and Euler name. It combines tireless engineering work, gas trading and mathematics behind finance.

https://en.wikipedia.org/wiki/Leonhard_Euler

https://en.wikipedia.org/wiki/Oiler_(occupation)