In the event that any rate shall be filed by any common pipeline carrier and complaint against the same or a petition to reduce the same shall be filed by any shipper, and such complaint shall be sustained, in whole or in part, all shippers who shall have paid the rates so filed by the pipeline carrier shall have the right to reparation or reimbursement of all excess in transportation charges paid over and above the proper rate as finally determined on all shipments made after the date of the filing of such complaint.
49-19-15. Exchange of tonnage by common carrier - Facilities to be maintained for receipt and delivery. Every common pipeline carrier shall exchange crude petroleum tonnage, coal, or gas with each like common pipeline carrier. The commission shall have the power to require connections and facilities for the interchange of such tonnage, coal, or gas to be made at every locality reached by both pipelines whenever the necessity therefor exists and subject to such rates and regulations as may be made by the commission. Any such common pipeline carrier under like rules and regulations shall be required to install and maintain facilities for the receipt and delivery of crude petroleum, coal, or gas of patrons at all points on such pipeline. No carrier shall be required to receive or transport any crude petroleum, coal, or gas except such as may be marketable under rules and regulations to be prescribed by the commission.