Solid Professionalism yet a Family Business and Independent too! Dennis, the owner, and his family all work hard, always striving to personally ensure that Denrich meets your family's needs. I found him delivering oil up the street 10 years ago and never missed the other, bigger suppliers. Denrich delivers oil, performs regular maintenance, and replaced our furnace after Hurricane Sandy killed it. And every one of them is pleasant, reliable and trustworthy. Never any complaints. Support this American Family Business!