You said it all… thanks @greenbuggy
@RawZebra do put additional filtration, but don’t worry too much about the last little bit of oil coming out of a wet sump screw compressor. For Haskels, be more concerned about removing all moisture from the air. The refrigerative drier equipped air compressors, or an external refrigerative drier, are a must have for Haskel air drive reliability in most climates.
I’ve used Chicago Pnuematic QRS series and they work fine. Id suggest the largest QRS they’e 15hp and can run 3 pumps.