Definition - What does Mineral Acre mean?
A Mineral Acre is the presence of minerals under a said acreage of land which a mineral operator and extractor can extract using its working interest rights on a given acreage of land. The acreage generally corresponds to 640 acres on a land layout in the United States. The minerals can be hydrocarbons (oil, natural gas, and condensates), Gold, Silver, Iron, Coal, or any other material that is traded on stock exchange.
Petropedia explains Mineral Acre
Mineral acres are divided into net mineral acres and gross mineral acres. Net mineral acres represent the amount of minerals available to an operator which he can exploit on an aforementioned piece of land over which an operator has the working interest rights. It is not always correct to treat net mineral acres as equal to the gross mineral acres. For example, if a given piece of lease is spread across 640 acres of land, but the mineral interest owner owns only 100 mineral acres under this 640 acres tract, this will yield to 100 net mineral acres.Gross Mineral acres refer to the actual amount of gross acres of a piece of land, i.e., the total acreage of land. If an owner owns all of the minerals under a given 100 acres of tract, it is said to have gross mineral acres equal net mineral acres.