California Code, Public Resources Code - PRC § 3341

At the termination of oil and gas production from a unit area established or approved pursuant to this article and the abandonment of attempts to obtain production therefrom, any interested municipal corporation or other public agency may acquire by eminent domain, in the manner provided by law for the condemnation of property for public use by the state, municipal corporation or other public agency, such oil production properties or facilities within the unit area as such municipal corporation or other public agency may deem necessary or essential to the maintenance of such pressures as will continue to arrest or ameliorate subsidence.