State Nonferrous Metallic Mineral Leasing
History of State Leasing and Drilling

State Leasing History

The state began offering leases for nonferrous metallic minerals in 1966. Listed below is data from over 50 years of state metallic mineral lease transactions and associated exploration between January 1966 through December 2018.

Significant summary points from the data:

  • 82% of state nonferrous metallic mineral leases were terminated within 5 years.
  • 97.4% of the current and historic state leased parcels for nonferrous metallic mineral had no exploration drilling on them.

Table 1: State Nonferrous Metallic Mineral Leases
(1966-2018)

Lease StatusNumber of LeasesPercentage of Total
Active46812%
Terminated3,37788%
Total3,845100%

 

Table 2: Length of State Nonferrous Metallic Mineral Leases
(1966-2018)

Terminated Leases (3,377 Leases)Percentage of Total Terminated Leases
Terminated within 5 years82%
Terminated within 6-10 years16%
Terminated after 10 years2%
Active Leases (468 Leases)Percentage of Total Active Leases
Less than 5 years old64%
Lease is between 6 and 10 years old16%
Lease is greater than 10 years old20%

 


 

Drilling and Leasing History Analysis

The DNR completed a new analysis of exploratory boreholes (drilling) on state nonferrous metallic mineral leased parcels between January 1966 through 2018. During this time there were 3,845 state metallic mineral leases issued over 25,806 approximate 40-acre leased parcel footprints. It is important to note that some of these parcels have been leased multiple times though are only counted once for this calculation.

The analysis showed that 97.4% of all state nonferrous metallic mineral leased parcels had no exploration drilling on them. There were a total of 2,159 total exploration drill holes that intersected a state leased parcel. Those drill holes intersected 663 leased parcels or 2.6% of all state leased parcels (see table 3).

Table 3: Exploration Drilling on State Nonferrous Metallic Mineral Leased Parcels
(1966 through 2018)

Number of Parcels (approximately 40 acres)Number of Drill Holes per ParcelTotal number of Drill HolesPercentage of Leased Parcels and Exploration Drilling
25,1430097.4% of the leased parcels had no exploration drilling
47114711.8% of the leased parcels had 1 exploration drill hole
1212-53260.5% of the leased parcels had between 2 and 5 exploration drill holes
286-103110.1% of the leased parcels had between 6 and 10 exploration drill holes
4311+1,1510.2% of the leased parcels had greater than 11 exploration drill holes
25,806 total leased parcels 2,159 total drill holes2.6% of leased parcels had 1 or more drill holes.
97.4% of leased parcels had no exploration drilling.