Hi, love your mod!!!
how many pumpjacks to replace 1 vanilla offshore pump? from my rough (and very noobish) estimation it's 120 coal pumpjacks for 1 offshore pump ?? Playing expensive mode here.

A suggestion for you:
Noticed the electric pump mini mod in discussion. Please make sure that polution from burner pumpjack is higher than standard pumpjack for balancing reasons. You could add a water only environment friendly electric pumpjack of course, too. Best way would be, to automatically set pollution rate wether it's placed on oil or water. If possible :)