ORRI (Overriding Royalty Interest) in Canada

I was wondering what the tax implications are for owning an ORRI in Canada such as if an American would be double taxed with a foreign withholding? Are there added expenses that would lower the yield? Also, could the ORRI payer alter the current currency that the ORRI is paid in, from a check drawn in CDN dollars to American? Any info on this and any other regulations would be appreciated.

I have lost money to the currency conversion. If we sign again, I would start an account in Canada. Maybe go there for medical stuff and spend the money that way. Ha ha! Please consider my group for freehold owners in Canada. Lori.