This form provides for the reassignment of interests in the event a well is required to be drilled, deepened, reworked, plugged back, sidetracked, or recompleted, or any other operation that may be required in order to (1) continue a Lease or Leases in force and effect, or (2) maintain a unitized area or any portion of it in and to any Oil and/or Gas and other interest which may be owned by a third party or which, failing in the operation, may revert to a third party, or (3) comply with an order issued by a regulatory body