§ 144.61 Definitions of terms as used in this subpart.

(a) Plugging and abandonment plan means the plan for plugging and abandonment prepared in accordance with the requirements of §§ 144.28 and 144.51.

(b) Current plugging cost estimate means the most recent of the estimates prepared in accordance with § 144.62 (a), (b) and (c).

(c) Parent corporation means a corporation which directly owns at least 50 percent of the voting stock of the corporation which is the injection well owner or operator; the latter corporation is deemed a subsidiary of the parent corporation.