How to tame long poofy hair on a guy?

my hair when short grows straight out of my head and somewhat looks like asian hair. I currently have my hair longer ( roughly 8 inches or so) and it still poofs out like crazy. It looks its best the day after I wash it or if I have worn a baseball hat for hours. I have oily skin and must wash it daily or else it looks very greasy. I have tried all sorts of frizz products, pomade, mousse, not rinsing out conditioner, etc. Any suggestions?