Oregon Revised Statutes Property Rights and Transactions § 92.179

Notwithstanding any other provision of law, a person who subdivides or partitions real property shall be liable for the reasonable and necessary costs of continuing utility service to structures on the property being subdivided or partitioned if the subdividing or partitioning causes utility lines to be moved or service to be interrupted, unless the person subdividing or partitioning the real property grants an easement to the utility service provider to accommodate continuing utility service to the structures.