SEATTLE -- Plum Creek Timber Co. Inc. reported third quarter earnings of $92 million, a 4.2% decrease from the same period in 2005. Rick Holley, president and CEO of Plum Creek Timber, said, “During the third quarter our real estate segment continued to grow revenue and earnings…These positive results were offset by lower profits in our resources and manufacturing segments as lumber demand slowed from the record high levels of 2005.”