Cooper Manning net worth: Cooper Manning is an American energy trader who comes from the legendary NFL Manning family who has a net worth is $15 million dollars. Born in Mississippi, Cooper Manning is the oldest member of the Manning children. Like his father and brothers, he played football throughout school. At six feet four inches tall, he was a formidable wide receiver, and played in the same games as his younger brother, quarterback Peyton Manning. His youngest brother is Eli Manning. The one season Cooper and Peyton were able to play together was a great year for the entire family. Cooper caught 75 passes from his brother that year. Cooper Manning was an All-State wide receiver, and had plans to attend the University of Mississippi. Unfortunately, at the end of his senior year of high school, he was diagnosed with spinal stenosis, and consequently, a pro-football career was out of the question. Cooper Manning became an executive, and now works for Weil Howard, an energy investment firm with offices in Houston and New Orleans. He is married and has three children.