Tex. Utilities Code § 56.212

(a) If the commission approves a petition requesting service, residents of permanent residential premises or owners of permanent residential or business premises in reasonable proximity to the premises that were the subject of an approved petition who did not sign the prior petition requesting service are not entitled to receive service under this subchapter until the fifth anniversary of the date the prior petition was filed unless the residents or owners file a new petition under this subchapter and agree to pay aid to construction charges on the same terms as applicable to the prior petitioners.

(b) The designated provider shall receive reimbursement for the original cost of deployment and actual recurring costs of providing service to those additional residents in the same manner as the provider received reimbursement of those costs in relation to the prior petitioners. The provider may not receive reimbursement for the original cost of deployment under a subsequent petition if the provider previously received complete reimbursement for those costs from the state universal service fund. If the state universal service fund has completely reimbursed the original cost of deployment as provided by this subchapter, each subsequent petitioner must pay into the state universal service fund an amount equal to the aid to construction charge paid by each prior petitioner.