| 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 |
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| 1918 | Se-Rob | | Mine | Slope | 4 | | Lackawanna | Se-Rob Coal Co. | 8,774 | DL&W | 0 | 8,914 | 147 | 41 | New mine. | | 1919 | Se-Rob | | Colliery | Slope 1 | 4 | | Lackawanna | Se-Rob Coal Co. | 3,846 | DL&W | 0 | 3,911 | 26 | 90 | | | 1920 | Se-Rob | | Colliery | Slope 1 | 4 | | Lackawanna | Se-Rob Coal Co. | 25,019 | DL&W | 0 | 25,280 | 243 | 61 | | | 1921 | Se-Rob | | Colliery | Slope 1 | 4 | | Lackawanna | Se-Rob Coal Co. | 85,913 | DL&W / NYO&W | 0 | 91,146 | 243 | 98 | | | 1922 | Se-Rob | | Colliery | Slope 1 | 4 | | Lackawanna | Se-Rob Coal Co. | 51,761 | DL&W / NYO&W | 0 | 56,474 | 155 | 123 | | | 1923 | Se-Rob | | Colliery | Slope 1 | 4 | | Lackawanna | Se-Rob Coal Co. | 42,658 | DL&W | 0 | 43,455 | 225 | 80 | |
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