The writer was not trying to show a social, or political, or economical history of Israel's kings like most histories today. He writes about Omri, who was a very powerful king and an important political person, in only six verses (16:23-28), simply saying that he "did evil in the eyes of the Lord" (16:25, NIV). Also, Jeroboam the second, who was king over northern Israel when it was most powerful, is written about very shortly (2 Kings 14:23-29).