Fans of soap operas will remember the show Dallas. It was a prime-time show on CBS between 1978 and 1991. The main plot centered around the marriage of oil company owners Bobby Ewing and Pamela Barnes whose families were enemies. An oil tycoon version of Romeo and Juliet so to speak.
If you watched it you’ll remember the character of Sue Ellen, who was played by Linda Gray since the pilot episode. She stayed on the show for 12 seasons until the episode when Sue beat her husband R.J. (an oil tycoon who was known for building all sorts of shifty schemes) at his own game and left the city.