Tex. Natural Resources Code § 91.178

In the event the acquisition or operation of a storage facility acquired through the exercise of the power of eminent domain requires the relocation or alteration of any railroad, electric, telegraph, telephone, or pipeline lines or facilities, the expense of the relocation or alteration shall be borne by the storer. The expense of relocation means the actual cost incurred in providing a comparable replacement line or facility, less net salvage value from the sale or other disposition of the old facility.