Nevada Revised Statutes Title 58. Energy; Public Utilities and Similar Entities § 708.100. Common purchaser:  Duties;  discrimination prohibited

1. Every person, firm, corporation, joint-stock association or other association which is engaged in the business of purchasing crude oil or petroleum produced in the State of Nevada, using in connection with such purchase a pipeline or pipelines within this state, shall be deemed a common purchaser thereof, and shall purchase all of the oil or petroleum in the vicinity thereof which may be reasonably reached by its pipelines and gathering branches, without discrimination in favor of one person as against another, and shall fully perform all the duties of a common purchaser. If it shall be unable to purchase and transport all of the oil and petroleum produced and offered to it for sale, then it shall purchase and transport oil from each person and producer offering to sell the person’s or producer’s oil to the common purchaser ratably, in proportion to the average daily production.

2. Such common purchasers are hereby expressly prohibited from discriminating in price or amount for like grades of oil as between producers or persons;  and if such purchaser is likewise a producer, it is hereby prohibited from discriminating in favor of its own production or storage, or production or storage in which it may be interested, directly or indirectly, in whole or in part, and its own production and storage shall be treated as that of any other person or producer.