petroleous

adjective3

1. •
   Containing petroleum.

   • His desire for a tip seeped out of him like oil from petroleous rock. — 1961
2. •
   Pertaining to the mining of petroleum.

   • The deepest element reached by petroleous drilling carried out for petroleous research, is represented from limestone of the upper Trias over 4800 meters thick (Patacca et al. 1979). — 2003
3. •
   Characteristic of oil or petroleum.

   • If he had been able to command more champagne, howsoever petroleous, and if those two young women from the City Eoad could have cheered him with their delicate attentions, he might have been happy. — 1883