| Year | Operation Name | Number | Type | Opening | District | City | County | Company Name | Railroad Shipments (tons) | Railroad to Mine | Truck Shipments (tons) | Total Production (tons) | Days Worked | Employees | Notes |
|---|
| 1923 | O'Hara | | Washery | | 8 | Avoca 1 | Luzerne | O'Hara Coal Co. | 5,660 | Erie | 0 | 5,760 | 150 | 10 | Carl O found city. | | 1937 | O'Hara | | Mine | | 2 | | Lackawanna | O'Hara Coal Co. | 294 | | 98 | 392 | 42 | 6 | | | 1938 | O'Hara | | Mine | | 2 | | Lackawanna | O'Hara Coal Co. | 1,432 | | 1,351 | 2,783 | 134 | 10 | | | 1939 | O'Hara | | Mine | | 2 | | Lackawanna | O'Hara Coal Co. | 1,339 | | 4,589 | 5,937 | 165 | 20 | |
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