What is your company trying to accomplish by switching to Oracle Linux?
So what you're asking isn't information that could be used as part of a cost/benefit calculation, but more of a "this is happening, how do we make the best of it" question?
Oracle Linux is based on RHEL, and to the best of my knowledge isn't that different. I suspect that since you're a RHEL shop, you probably won't see as many problems as you may fear.