| Orange TippleWashington, OHNear MacksburgMSHA 3301359 | Coal (Bituminous)Facility | AbandonedStatus date: 03/14/1983 | Orange Coal Company IncReported operatorCarl L Baker JrReported controller | Neither history importedView source coverage → |
| Orr Auger MineTuscarawas, OHMSHA 3302617 | Coal (Bituminous)Surface | AbandonedStatus date: 05/02/1974 | Orr Coal CompanyReported operatorOrr Coal CompanyReported controller | Neither history importedView source coverage → |
| Orrville Tile & Flue Lining IncorporatedWayne, OHMSHA 3300514 | Common Clays NECSurface | AbandonedStatus date: 07/27/1988 | Orrville Tile & Flue Lining IncReported operatorBowling Mark GReported controller | Neither history importedView source coverage → |
| Orrville TruckingAshland, OHNear AshlandMSHA 3304544 | Construction Sand and GravelSurface | AbandonedStatus date: 10/20/2008 | Orville TruckingReported operatorDavid B RennerReported controller | Production / employmentSafety recordsView source coverage → |
| Oster Sand & Gravel-Bolivar PlantTuscarawas, OHNear BolivarMSHA 3301594 | Construction Sand and GravelSurface | AbandonedStatus date: 11/30/2023 | Oster Sand & GravelReported operatorOster Enterprises IncReported controller | Production / employmentSafety recordsView source coverage → |
| Ostrander TunnelsUnion, OHNear OstranderMSHA 3304737 | Crushed, Broken Limestone NECUnderground | AbandonedStatus date: 04/20/2018 | Shelly Materials Inc.Reported operatorCRH PLCReported controller | Production / employmentSafety recordsView source coverage → |
| Ottowa Stone CompanyPutnam, OHMSHA 3300135 | Crushed, Broken Limestone NECSurface | AbandonedStatus date: 03/21/1985 | Ottawa Stone CompanyReported operatorTony ShroyerReported controller | Neither history importedView source coverage → |
| Owv MineColumbiana, OHNear LisbonMSHA 3304119 | Coal (Bituminous)Underground | Abandoned and SealedStatus date: 05/28/1996 | Mountain Spring Coal CompanyReported operatorForest Coal CompanyReported controller | Neither history importedView source coverage → |
| Ox Auger MineTuscarawas, OHMSHA 3303254 | Coal (Bituminous)Surface | AbandonedStatus date: 05/06/1975 | Lox Construction IncReported operatorOxenrider MaryReported controller | Neither history importedView source coverage → |
| Oxford Auger #4Muskingum, OHNear AdamsvilleMSHA 3304625 | Coal (Bituminous)Surface | AbandonedStatus date: 10/21/2011 | Oxford Mining Co. LLCReported operatorWestmoreland Coal CompanyReported controller | Production / employmentView source coverage → |
| Oxford Auger #5Tuscarawas, OHNear Mineral CityMSHA 3304618 | Coal (Bituminous)Surface | AbandonedStatus date: 10/21/2011 | Oxford Mining Co LLCReported operatorWestmoreland Coal CompanyReported controller | Production / employmentView source coverage → |
| Oxford Auger #6Tuscarawas, OHNear UhrichsvilleMSHA 3304619 | Coal (Bituminous)Surface | AbandonedStatus date: 10/21/2011 | Oxford Mining Co LLCReported operatorWestmoreland Coal CompanyReported controller | Production / employmentView source coverage → |
| Oxford Auger No 1Belmont, OHNear BarnesvilleMSHA 3304471 | Coal (Bituminous)Surface | AbandonedStatus date: 02/09/2012 | Oxford MiningReported operatorWestmoreland Coal CompanyReported controller | Production / employmentSafety recordsView source coverage → |
| Oxford Beagle ClubBelmont, OHNear St. ClairsvilleMSHA 3304584 | Coal (Bituminous)Surface | AbandonedStatus date: 01/05/2012 | Oxford Mining Co LLCReported operatorWestmoreland Coal CompanyReported controller | Production / employmentSafety recordsView source coverage → |
| Oxford Contract Auger # 1-No. 4Harrison, OHNear New Athens, OHMSHA 3304524 | Coal (Bituminous)Surface | AbandonedStatus date: 01/06/2012 | Oxford Mining Co. LLC.Reported operatorWestmoreland Coal CompanyReported controller | Production / employmentView source coverage → |
| Oxford Contract Auger # 2-No. 11Harrison, OHNear New Athens, OHMSHA 3304522 | Coal (Bituminous)Surface | AbandonedStatus date: 01/06/2012 | Oxford Mining Co LLC.Reported operatorWestmoreland Coal CompanyReported controller | Neither history importedView source coverage → |
| Oxford Contract Auger # 3- No.12Harrison, OHNear New Athens< OHMSHA 3304523 | Coal (Bituminous)Surface | AbandonedStatus date: 01/06/2012 | Oxford Mining Co LLC.Reported operatorWestmoreland Coal CompanyReported controller | Production / employmentSafety recordsView source coverage → |
| Oxford Guernsey MineGuernsey, OHNear Quaker CityMSHA 3304624 | Coal (Bituminous)Surface | AbandonedStatus date: 09/29/2015 | Oxford Mining Co. LLC.Reported operatorWestmoreland Coal CompanyReported controller | Production / employmentSafety recordsView source coverage → |
| Oxford Jockey HollowHarrison, OHNear CadizMSHA 3304585 | Coal (Bituminous)Surface | AbandonedStatus date: 11/20/2014 | Oxford Mining Co.LLCReported operatorWestmoreland Coal CompanyReported controller | Production / employmentSafety recordsView source coverage → |
| Oxford MiningCoshocton, OHNear CoshoctonMSHA 3302539 | Coal (Bituminous)Surface | AbandonedStatus date: 11/21/2006 | Oxford MiningReported operatorWestmoreland Coal CompanyReported controller | Production / employmentSafety recordsView source coverage → |
| Oxford Mining #2Tuscarawas, OHNear Port WashingtonMSHA 3304049 | Coal (Bituminous)Surface | AbandonedStatus date: 01/31/1995 | Oxford MiningReported operatorWestmoreland Coal CompanyReported controller | Neither history importedView source coverage → |
| Oxford Mining #2Muskingum, OHNear AdamsvilleMSHA 3304213 | Coal (Bituminous)Surface | AbandonedStatus date: 02/17/2015 | Oxford Mining Co LLCReported operatorWestmoreland Coal CompanyReported controller | Production / employmentSafety recordsView source coverage → |
| Oxford Mining #4Guernsey, OHNear New ConcordMSHA 3304385 | Coal (Bituminous)Surface | AbandonedStatus date: 07/02/1997 | Oxford MiningReported operatorWestmoreland Coal CompanyReported controller | Neither history importedView source coverage → |
| Oxford Mining Carroll PitsCarroll, OHNear CarrolltonMSHA 3304594 | Coal (Bituminous)Surface | AbandonedStatus date: 11/20/2014 | Oxford Mining Co. LLCReported operatorWestmoreland Coal CompanyReported controller | Production / employmentSafety recordsView source coverage → |
| Oxford PlantTuscarawas, OHNear TuscarawasMSHA 3304646 | Crushed, Broken Limestone NECFacility | AbandonedStatus date: 07/12/2011 | The National Lime & Stone CompanyReported operatorNational Lime & Stone Co.Reported controller | Production / employmentSafety recordsView source coverage → |
| Ox StripTuscarawas, OHMSHA 3303253 | Coal (Bituminous)Surface | AbandonedStatus date: 05/23/1978 | Lox Construction IncReported operatorOxenrider MaryReported controller | Neither history importedView source coverage → |
| Page Strip MineTuscarawas, OHMSHA 3301916 | Coal (Bituminous)Surface | AbandonedStatus date: 03/21/1972 | Tobo Mining Company IncReported operatorTobo Mining Company IncReported controller | Neither history importedView source coverage → |
| PAINESVILLE MINELake, OHMSHA 3301791 | Construction Sand and GravelSurface | AbandonedStatus date: 11/05/1998 | R W Sidley IncReported operatorRobert BuescherReported controller | Production / employmentSafety recordsView source coverage → |
| Panhandle StripHarrison, OHMSHA 3303609 | Coal (Bituminous)Surface | AbandonedStatus date: 10/21/1980 | Cramer LandscapingReported operatorCramer LanceReported controller | Neither history importedView source coverage → |
| Paon Strip MineJefferson, OHMSHA 3302051 | Coal (Bituminous)Surface | AbandonedStatus date: 10/30/1973 | R & F Coal CompanyReported operatorShell Oil CompanyReported controller | Neither history importedView source coverage → |