Blog · September 27, 2026
Mineral Rights and the Lot Line
The lot line on a plat describes the surface lot. Mineral rights can be severed and owned by someone else.
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A severance is a recorded deed or reservation. It will not appear as a dashed line around the lot. Title search is how you find it.
On the recorded sheet
Owning the house does not always include oil, gas, or stone. The plat does not try to draw that estate.
The mix-up to avoid
A GIS parcel sold as 'land' is the surface account. Ask the deed whether the minerals went with it.
Find the county map
Start at Platbookmapper, search the county, and open the local GIS link. Write down the parcel number before you compare the screen to a paper plat.
Not a survey. County GIS and tax parcel maps are assessment and planning layers. They are not a substitute for a recorded plat, deed, or licensed survey.