petrolific

Adjective

 * 1) Yielding petroleum.
 * 2) * 1930, Arkansas Geological Commission, Arkansas Resources and Development Commission. Division of Geology, Bulletin (volume 3, page 114)
 * The Stanley shale is too intricately folded to be of any petrolific importance in the Ouachita Mountains. The Stanley sandstone may contain gas at some places in the Arkansas Valley area