Not really a game, but:

After the success of SimCity, Maxis received numerous requests from various companies to develop simulations for their industries. After rejecting many requests from other companies, the team eventually agreed to make a prototype of SimRefinery for Chevron:

[SimRefinery was] a simulation of their refinery operation, for orienting people in the company as to how a refinery works. It wasn't so much for the engineers as it was for the accountants and managers who walked through this refinery every day and didn't know what these pipes were carrying. — Will Wright

https://obscuritory.com/sim/when-simcity-got-serious/

https://en.m.wikipedia.org/wiki/SimRefinery