The term MOBIL RELATIVE is a crossword solution that consists of two words. The first word, MOBIL, is a four-letter word that is the brand name of a major oil and gas company, Esso. The second word, RELATIVE, is an eight-letter word that refers to a person who is related to another person by blood or marriage. Together, the two words form a phrase that describes a person who is related to someone who works for Esso.