| OnyxMingo, WVNear CinderellaMSHA 4608806 | Coal (Bituminous)Underground | AbandonedStatus date: 03/25/2025 | Lexington Coal Company, LLCReported operatorLexington Coal Holdings, IncReported controller | Production / employmentSafety recordsView source coverage → |
| Opal #1 MineBoone, WVMSHA 4606073 | Coal (Bituminous)Underground | AbandonedStatus date: 10/01/1979 | Opal Coal CompanyReported operatorWhite Harry KReported controller | Neither history importedView source coverage → |
| Operation No 1Mcdowell, WVMSHA 4606212 | Coal (Bituminous)Surface | AbandonedStatus date: 08/07/1981 | Ajo Coal CompanyReported operatorWhite TommyReported controller | Neither history importedView source coverage → |
| Operation No 1Mercer, WVNear MccomasMSHA 4606234 | Coal (Bituminous)Surface | AbandonedStatus date: 09/12/1984 | Benafuels IncReported operatorBadger George HReported controller | Neither history importedView source coverage → |
| Opus MineKanawha, WVNear ChelyanMSHA 4609400 | Coal (Bituminous)Surface | AbandonedStatus date: 07/17/2014 | WWMV LLCReported operatorCMDC LLC; RWMV LLCReported controller | Production / employmentSafety recordsView source coverage → |
| Orgas MineBoone, WVNear OrgasMSHA 4607668 | Coal (Bituminous)Surface | AbandonedStatus date: 03/24/2003 | LCC West Virginia LLCReported operatorLexington Coal Company LLCReported controller | Production / employmentSafety recordsView source coverage → |
| Orgas Mine No 2Boone, WVMSHA 4603725 | Coal (Bituminous)Underground | AbandonedStatus date: 09/26/1980 | Whitesville A & S Coal Company IncReported operatorHylton Tracy WReported controller | Neither history importedView source coverage → |
| Orgas No 1 MineBoone, WVMSHA 4602350 | Coal (Bituminous)Underground | AbandonedStatus date: 02/16/1973 | Whitesville A & S Coal Company IncReported operatorHylton Tracy WReported controller | Neither history importedView source coverage → |
| OrificeWyoming, WVNear LyncoMSHA 4603807 | Coal (Bituminous)Underground | Abandoned and SealedStatus date: 04/16/1990 | Rockridge Coal Company IncReported operatorMassey Energy CompanyReported controller | Neither history importedView source coverage → |
| Orion MineLogan, WVNear HutchinsonMSHA 4604156 | Coal (Bituminous)Underground | Abandoned and SealedStatus date: 03/12/1994 | Talon Resources IncReported operatorRichard H AbrahamReported controller | Neither history importedView source coverage → |
| Orlandi No 8 MineBoone, WVMSHA 4601636 | Coal (Bituminous)Underground | AbandonedStatus date: 12/21/1971 | Ferndale Mining CompanyReported operatorFerndale Mining CompanyReported controller | Neither history importedView source coverage → |
| Osage #3Monongalia, WVNear Cassville, WvMSHA 4601455 | Coal (Bituminous)Underground | AbandonedStatus date: 02/04/2005 | Consolidation Coal CompanyReported operatorRobert E MurrayReported controller | Production / employmentSafety recordsView source coverage → |
| Oswald Hollow SurfaceRaleigh, WVNear BradleyMSHA 4607150 | Coal (Bituminous)Surface | AbandonedStatus date: 10/12/1986 | Energy Enterprises IncReported operatorKizer John EReported controller | Neither history importedView source coverage → |
| Otsego Refuse Pile Surface MineWyoming, WVNear MullensMSHA 4606232 | Coal (Bituminous)Facility | AbandonedStatus date: 04/13/1992 | Pax Mining CompanyReported operatorCostain Group PLCReported controller | Neither history importedView source coverage → |
| Otsego UgWyoming, WVMSHA 4601553 | Coal (Bituminous)Underground | AbandonedStatus date: 10/01/1979 | Westmoreland Coal CompanyReported operatorWestmoreland Coal CompanyReported controller | Neither history importedView source coverage → |
| Otter Creek AugerNicholas, WVNear DrennenMSHA 4607702 | Coal (Bituminous)Surface | AbandonedStatus date: 01/05/1993 | Stear Auger Mining IncReported operatorLeroy StearReported controller | Neither history importedView source coverage → |
| Otter Creek DragNicholas, WVNear DrennenMSHA 4608099 | Coal (Bituminous)Surface | AbandonedStatus date: 10/25/1991 | Associated Contractors & Trucking IncReported operatorPorter MikeReported controller | Neither history importedView source coverage → |
| Otter Creek Mine #1 (1)Nicholas, WVNear DrennenMSHA 4607421 | Coal (Bituminous)Underground | Abandoned and SealedStatus date: 06/05/1996 | Terry Eagle Coal Company LlcReported operatorCONSOL Energy IncReported controller | Production / employmentView source coverage → |
| Otter Creek SurfaceNicholas, WVNear DrennenMSHA 4607652 | Coal (Bituminous)Surface | AbandonedStatus date: 12/17/1992 | Williams Construction CompanyReported operatorJack L WilliamsReported controller | Neither history importedView source coverage → |
| Otter Creek Surface No 2Nicholas, WVNear DrennenMSHA 4608121 | Coal (Bituminous)Surface | AbandonedStatus date: 02/03/1992 | Fenton Mining CorpReported operatorBrowning LeonReported controller | Neither history importedView source coverage → |
| OutpostWyoming, WVNear LyncoMSHA 4607177 | Coal (Bituminous)Underground | Abandoned and SealedStatus date: 09/25/1986 | Lambert Coal Company IncReported operatorLambert CharlesReported controller | Neither history importedView source coverage → |
| Outpost EastRaleigh, WVNear PettusMSHA 4608296 | Coal (Bituminous)Underground | AbandonedStatus date: 11/02/1995 | Marfork Coal Company IncReported operatorAlpha Metallurgical Resources IncReported controller | Neither history importedView source coverage → |
| Outpost WestRaleigh, WVNear PettusMSHA 4608295 | Coal (Bituminous)Underground | Abandoned and SealedStatus date: 04/03/2001 | Marfork Coal Company IncReported operatorAlpha Metallurgical Resources IncReported controller | Production / employmentSafety recordsView source coverage → |
| Ova MineLogan, WVNear SharplesMSHA 4604517 | Coal (Bituminous)Underground | Abandoned and SealedStatus date: 01/18/1982 | Zapata Coal CorpReported operatorUnited CompanyReported controller | Neither history importedView source coverage → |
| O V Crane No 1 And Ohio Valley YardWetzel, WVMSHA 4602718 | Construction Sand and GravelSurface | AbandonedStatus date: 05/21/1982 | Ohio River Sand & GravelReported operatorMc Donough CompanyReported controller | Neither history importedView source coverage → |
| Owings MineHarrison, WVMSHA 4604318 | Coal (Bituminous)Surface | AbandonedStatus date: 12/02/1976 | Clay Development Co IncReported operatorMinnix DannReported controller | Neither history importedView source coverage → |
| Packs Branch StripRaleigh, WVMSHA 4602354 | Coal (Bituminous)Surface | AbandonedStatus date: 04/08/1974 | Whitesville A & S Coal Company IncReported operatorHylton Tracy WReported controller | Neither history importedView source coverage → |
| Page Loading FacilityFayette, WVNear PageMSHA 4604711 | Coal (Bituminous)Surface | AbandonedStatus date: 06/01/1985 | Hawks Nest Mining CompanyReported operatorImperial-Pacific Investments IncReported controller | Neither history importedView source coverage → |
| Pageton Impoundment Area FacilityMcdowell, WVNear PagetonMSHA 4602273 | Coal (Bituminous)Facility | AbandonedStatus date: 06/12/1992 | Consolidation Coal CompanyReported operatorRobert E MurrayReported controller | Production / employmentView source coverage → |
| Pageton Pond FinesMcdowell, WVNear PagetonMSHA 4608202 | Coal (Bituminous)Facility | AbandonedStatus date: 11/01/1992 | Star Buck Coal IncReported operatorMuncy Danny LReported controller | Neither history importedView source coverage → |