| 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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| 1931 | Conaboy | | Colliery | | 6 | Olyphant 1 | Lackawanna | Conaboy Coal Co. | 4,800 | | 0 | 4,800 | 42 | 70 | Formerly known as Marshwood. Coal prepared by Flagg Coal Co., Moosic. | | 1932 | Marshwood | | Colliery | | 6 | Olyphant 1 | Lackawanna | Conaboy Coal Co. | 59,187 | | 0 | 59,187 | 250 | 135 | | | 1933 | Marshwood | | Colliery | | 6 | Olyphant 1 | Lackawanna | Conaboy Coal Co. | 38,221 | | 8,265 | 46,486 | 184 | 92 | | | 1934 | Marshwood | | Colliery | | 6 | Olyphant 1 | Lackawanna | Conaboy Coal Co. | 50,466 | | 0 | 50,466 | 241 | 81 | | | 1935 | Marshwood | | Colliery | | 6 | Olyphant 1 | Lackawanna | Conaboy Coal Co. | 12,363 | | 0 | 12,363 | 189 | 40 | | | 1936 | Marshwood | | Colliery | | 6 | Olyphant 1 | Lackawanna | Conaboy Coal Co. | 3,435 | | 16,093 | 19,528 | 206 | 44 | | | 1937 | Marshwood | | Colliery | | 6 | Olyphant 1 | Lackawanna | Conaboy Coal Co. | 0 | Truck 1 | 12,201 | 12,201 | 101 | 39 | | | 1937 | Patterson | | Mine | Slope | 1 | | Lackawanna | Conaboy Coal Co. | 0 | Truck 1 | 7,214 | 7,214 | 72 | | | | 1937 | Tipperary | | Mine | Slope | 1 | | Lackawanna | Conaboy Coal Co. | 0 | Truck 1 | 3,631 | 3,631 | 109 | 34 | |
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