Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Call sign | Frequency MHz | City of license | ERP W | FCC info |
| --- | --- | --- | --- | --- |
| W207AF | 89.3 FM | Meadville, PA | 4.0 | FCC |
| W211AE | 90.1 FM | Mayville, NY | 3.0 | FCC |
| W218AP | 91.5 FM | Titusville, PA | 13.0 | FCC |
| W220BA | 91.9 FM | Oil City, PA | 10.0 | FCC |
| W255AE | 98.9 FM | Warren, PA | 50.0 | FCC |
Question:
Which City of license has a Call sign of w220ba?
Answer:
Oil City, PA