This form is used in the event any part to this Agreement elects not to participate in a Horizontal Exploratory Well, the non-participating party shall, on commencement of operations for the well, relinquish to the participating party one hundred percent (100%) of its rights, title, and interests in and to that portion of the Contract Area included within the Drilling Unit for the well and one hundred percent (100%) of the party’s rights, title, and interests in and to that portion of the Contract Area.