https://pboilandgasmagazine.com/the-downturn-resistant-middle/
The Downturn-Resistant Middle - Permian Basin Oil and Gas Magazine
Aug 26, 2019 - By Paul Wiseman In spite of the precipitous fall in oil prices and the contingent drop in rig counts, production, particularly in the Permian Basin, is still...
oil and gasmiddle permiandownturnresistantbasin
https://www.micropress.org/microaccess/micropaleontology/issue-265/article-1668
Radiolarians from the upper Guadalupian (Middle Permian) Reef Trail Member of the Bell Canyon...
from themiddle permianmember ofbell canyonradiolarians