The United Refining Company (URC) is an oil company in Warren, Pennsylvania. The company operates an oil refinery in Warren that can process 70,000 barrels of crude oil into gasoline, diesel fuel and other petroleum distillates per day. It distributes gasoline under the Kwik Fill and Keystone brands. In early 2019, the American Automobile Association noted that Warren had the most expensive gasoline in Western Pennsylvania, despite the presence of the refinery in the town and a gasoline station just outside the refinery, the root cause of which remains undetermined.

Warren is a city in and the county seat of Warren County, Pennsylvania, United States, located along the Allegheny River. The population was 9,404 at the 2020 census. It is home to the headquarters of the Allegheny National Forest and the Cornplanter State Forest. It is also the headquarters for the Chief Cornplanter Council, the oldest continuously chartered Boy Scouts of America Council, and the catalog company Blair. Warren is the principal city of the Warren micropolitan area.