City of Ponca City and Phillips 66 Join Forces for Biennial Event on April 27 Ponca City, March – The City of Ponca City, in collaboration with Phillips 66, is proud to announce the eagerly anticipated Household Hazardous Waste Day on Saturday, April 27, 2024. This biennial event, held at the large parking lot just north of the Phillips 66 complex at the corner of South Avenue and Oak St., aims…