Do unpaid royalties stay with new company?

Still trying to transfer my father’s oil leases. I noticed one of the wells was sold in 2009. This well has been producing since 2007. Where are the unpaid royalties from 2007 to 2009?

Are they kept by the original owning company or do they follow the new owning company?

Hope this isn’t confusing.

thanks

I have wells that changed operators and have received division orders from the new operator that they are paying for the old operator also. This would seem to make sense as a standard practice. When the new owner takes over a well they take on the existing assets, and liabilities of the well. Like I said, it would seem to make sense, whether it is the standard practice or not, I can’t swear to it. I would ask the new operator.

Thanks you.

I at least now have an idea how to start the search for my $$$$.