Petroleum Rock : Sandstone, limestone, dolomite, fractured shale, and other porous rock formations where accumulations of oil and gas may be found. (ITOGP)
The Mudblogger (Oilfield, Energy and Related Photographs), Oil Field Glossary, TX, USA 2014. http://mudblogger.com/oilfield-glossary/, (Oil - Amer) {777}