| 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 |
|---|
| 1940 | Knappen | | Mine | | 2 | | Lackawanna | Knappen Coal Co. | 1,140 | | 760 | 1,900 | 265 | 15 | Coal prepared at Erie Breaker. | | 1941 | Knappen | | Mine | | 2 | | Lackawanna | Knappen Coal Co. | 6,110 | | 3,010 | 9,120 | 211 | 21 | | | 1942 | Knappen | | Mine | | 2 | | Lackawanna | Knappen Coal Co. | 10,937 | | 1,781 | 12,718 | 276 | 18 | | | 1943 | Knappen | | Mine | | 1 | | Lackawanna | Knappen Coal Co. | 1,260 | | 0 | 1,260 | 214 | 12 | Run of mine coal. Transferred from District 2. |
|