Finding property map for mineral rights

I found the property and numbered parcels of one Block I’m searching for on the RRC map, but the second adjoining Block has no numbered parcels displayed on the map. The second Block looks like it was not subdivided into parcels (maybe the surface is one big farmland feature?), but I have an old map that identifies a bunch of parcels on that same “farm” property. Is there a separate layer on the RRC map that displays parcels related to “mineral rights” parcels? In any case, how do I find the parcels on that Block that are related to mineral rights found on an old survey I have from 2012? Thanks for any help.