| 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 |
|---|
| 1931 | Throop | | Colliery | | 5 | Throop 1 | Lackawanna | Throop Coal Co. | 8,387 | | 0 | 8,387 | 289 | 13 | Coal prepared at Throop Washery, 6th District. |
| 1932 | Throop | | Colliery | | 5 | Throop 1 | Lackawanna | Throop Coal Co. | 4,038 | | 0 | 4,038 | 101 | 15 | Coal sold as run-of-mine. |
| 1933 | Throop | | Colliery | | 5 | Throop 1 | Lackawanna | Throop Coal Co. | 0 | Truck 1 | 335 | 1,339 | 77 | 17 | Coal sold as run-of-mine. |
| 1934 | Throop | | Colliery | | 5 | Throop 1 | Lackawanna | Throop Coal Co. | 0 | | 0 | 1,716 | 95 | 13 | |
| 1935 | Throop | | Colliery | | 5 | Throop 1 | Lackawanna | Throop Coal Co. | 0 | | 0 | 960 | 50 | 13 | |
Note 1: Added, does not appear in the mine inspection report.