Bartlesville is a city mostly in Washington County in the U.S. state of Oklahoma. The population was 37,290 at the 2020 census. Bartlesville is north of Tulsa and south of the Kansas border. It is the county seat of Washington County. The Caney River runs through Bartlesville.
Bartlesville is the primary city of the Bartlesville Micropolitan area, which consists of Washington County and had a population of 51,843 in 2018. A small portion of the city is in Osage County. The city is also part of the Tulsa Combined Statistical Area, with a population of 1,151,172 in 2015.
Bartlesville is notable as the longtime home of Phillips Petroleum Company. Frank Phillips founded Phillips Petroleum in Bartlesville in 1905 when the area was still an Indian Territory. The company merged with Conoco as ConocoPhillips and later split into the two independent companies, Phillips 66 and ConocoPhillips. Both companies have retained some operations in Bartlesville, but they have moved their corporate he