11.   The pair wanted to stay in science but there was not a great demand for petroleum engineers in Central Texas.

12.   WACO, Texas - For nearly a decade, Sam Bartlett and his wife worked in the oil industry as petroleum engineers.

13.   After graduating as a petroleum engineer in the former Soviet Union, he fought as a guerrilla for the Popular Movement for the Liberation of Angola against Portuguese rule.

14.   Airport authorities on Sunday seized three ancient Pharaonic artifacts which allegedly were being shipped illegally to Rome by an Italian petroleum engineer who works in Egypt.

15.   Airport authorities seized three ancient Pharaonic artifacts Sunday, saying they were being shipped to Rome illegally by an Italian petroleum engineer who works in Egypt.