...Although HUMINT-centric operations and IO may appear distinctly different in terms of their aims, they are closely linked; in fact, they are mutually supportive. HUMINT-centric operations target the insurgent and the terrorist, but in doing so they produce precise and timely information that allows our Soldiers to locate and attack insurgent forces with surgical precision, minimum violence, and minor collateral damage. A corollary benefit is that our actions result in minimal harm and inconvenience to the local population, helping us to convince them that we have the intent and capacity to improve their security and daily lives by eliminating the insurgent threat.
That is precisely why CALL Newsletter 05-27 Company-level Stability Operations and Support Operations Vol 3 Patrolling, Intelligence, and Information Operations states that at the company-level IO and INT are one and the same.

Tom