The Sinclair Building was built by oil magnate Harry F. Sinclair in 1919. It was also known as the Mid-States Building and the Thurston Building.
Sinclair Building
| City/Town: • Tulsa |
| Location Class: • Hotel/Motel |
| Built: 1919 | Abandoned: 1980s |
| Historic Designation: • National Register of Historic Places (1979) |
| Status: • Under Renovation |
| Contributor: Preservation Oklahoma |
| Year(s) Listed: • 1994 |