Bartlesville's a city in Osage and Washington counties in the U.S. state of Oklahoma. The population was 34,748 at the 2000 census. Bartlesville's located forty-seven miles north of Tulsa and very close to Oklahoma's northern border with Kansas. It's the county seat of Washington County, in which most of the city lies. Bartlesville's notable as the longtime home of Phillips Petroleum Company, now merged with Conoco as ConocoPhillips. Frank Phillips, who's a principal street named after him (the… (More on Bartlesville)