A. Unless a property owner either releases or subordinates its mineral or material extraction rights interest to the Foundation's interest under the easement, the Foundation may not acquire an easement on a farm that is subject to mineral rights or a right to extract sand and gravel, shale, limestone, crude petroleum and natural gas, clay, ceramic, and fertilizer minerals and deep-mined minerals, including bituminous coal.
B. The Foundation may accept subordination of less than 100% of the mineral rights interest if owners of fractional shares cannot be located or are unwilling to subordinate, and the Foundation determines that the fractional interests are unlikely to be exercised.
C. In Garrett County or Allegany County only, the Foundation may not require subordination if the Foundation determines that exercise of natural gas rights will not interfere with an agricultural operation on property subject to an easement.