Wyo. Stat. § 30-5-124
Each person now or hereafter purchasing or taking for transportation oil from any owner or producer, shall purchase or take ratably without discrimination in favor of any owner or producer over any other owner or producer in the same pool offering to sell his oil produced therefrom to such person. If any such person purchasing or taking for transportation oil shall not have need for all such oil lawfully produced within a pool, or if for any reason it shall be unable to purchase all of such oil, then it shall purchase from each producer in a pool ratably, taking and purchasing the same quantity of oil from each well to the extent that each well is capable of producing its ratable portion; without waste, provided however, nothing herein contained shall be construed to require more than one (1) pipeline connection for each producing well. In the event that any such purchaser or person taking oil for transportation is likewise a producer or owner, he is hereby prohibited from discriminating in favor of his own production, or production in which he may be interested, and his own production shall be treated as that of any other producer or owner.
W.S. 30-5-124