Why did Ogden not want Gibbons to operate a steamboat service in New York?

Ogden did not want Gibbons to operate a steamboat service in New York because he held a monopoly granted by the state of New York for steamboat operations in its waters. He viewed Gibbons' entry into the market as a direct threat to his business and investment. Additionally, Ogden aimed to protect his exclusive rights and the financial returns associated with his steamboat venture. This conflict ultimately led to a significant legal battle over states' rights and federal regulation.