niobrara Definition

niobrara river, shale, cardium, ponca, anticline, wells, paleogene, acreage, waterflood, platte river, cretaceous, ostracod, permian, oil shale, miocene, subsalt, exploration, roman nose, ricinus, droshky, shoshoni, rough rider, zechstein, teapot dome, porosities, gros ventre, yampa, drilling, neocomian, drillers, minnehaha, unitization, spud, green river, kickapoo, depositional, leasehold, grainfield, kit carson, enid, winnipegosis, turonian, coulee, cook inlet, landmen, woodrush, reservoir, piute, sweet grass, basins, palaeocene, chisholm trail, candelilla, box elder, bear paw, cymric, carrizo, osages, velva, blackfeet, pawnees, rock springs, ausable, permeabilities, ranchland, pannonian, aneth, tamm, santa fe trail, okla, panoche, graben, sage grouse, malheur, playas, coal seam, inholding, molopo, mattole, cuisinier, arkose, jicarilla, thrust fault, little bighorn river, wyo, lode, mistassini, condensate, bartlesville, mule deer, brage, arbuckle, grand coulee, chicot, nez perce, woollybutt, gasfield, gunflint, teton range, hyalite,