- Pacific Corp
- Pacific Custom Materials Inc
- Pacific Custom Materials Inc
- Pacific Energy & Mining Co
- Pacific Far East Minerals
- Pacific Rim Mining Corp
- Palladon Ventures LTD
- Pan Pick & Shovel Gold Mining
- Para-Butte Mining Inc
- Paramont Co
- Park Valley Land Development
- Parton Bros Contracting Inc
- Parton Brothers Contracting
- Pathfinder Mines Corp
- Pathfinder Mines Corp
- Patriot Mining Co
- Patriot Mining Co Inc
- PCS Land Office
- PCS Phosphate
- PCS Phosphate
- PCS Phosphate Lodge
- Peabody Natural Gas LLC
- Performance Unlimited
- Peter Megaw IMDEX
- Phelps Dodge Corp
- Phelps Dodge Corp
- Phelps Dodge Corp
- Phelps Dodge Corp
- Phelps Dodge Corp
- Phelps Dodge Corp
- Phelps Dodge Exploration Corp
- Phelps Dodge Intl Exploration
- Phelps Dodge Miami Pinal Crk
- Phelps Dodge Mining Co
- Phelps Dodge Mining Co
- Phelps Dodge Mining Co
- Phelps Dodge Mining Co
- Phelps Dodge Sahuarita Mining
- Phoenix Mining Co
- Piedmont Mining Co Inc
- Piedmont Mining Co Inc
- Pinacle Land Management
- Pinnacle Resources
- Placer Dome Exploration
- Placer Dome Us
- Placerville Industries Inc
- Plago Mining Corp
- Platte River Gold Inc
- Plum Mining
- Pocahontas Mining Co
- Pogo Gold Project
- Point Mining
- Polar Mining Inc
- Polar Mining Inc
- Polymet Mining Inc
- Power Resources
- Power Resources Inc
- Power Resources Inc
- Praco Mines
- Precious Metals
- Premier Chemicals
- Premium Energy Inc
- Price Mine Svc
- Princess Coals Inc
- Princess Coals Inc
- Pritchard Mining Co
- Pro Rok Inc
- Prospect Mining
- Puskarich Mining Inc
- Quality Materials LLC
- Queenstake Jerritt Canyon
- Quest Minerals & Mining Inc
- Quinton Mining LLC
- R E Glancy Inc
- R J Mining
- R V Mining LLC
- R W Burns Mining Co
- Raesbeck Mining Co
- Rangeley Mining Inc
- Rare Metals Corp
- Red Bone Mining Co Portal B
- Red Hawk Exploration & Mining
- Red Mountain Mining
- Red Wing Prop Inc
- Redwall Mining Inc
- Reed Mining Inc
- Relief Mining Co
- Relief Mining Co
- Rendata Industrial Park LLC
- Resolution Copper Co
- Resurrection Mining Co
- Revett Silver Co
- Ridge Land Co
- Ridgeway Development Corp
- Rio Algom Mining Corp
- Rio Algom Mining Corp
- Rio Algom Mining Corp
- Rio Grande Mining Co
- Rio Grande Mining Co
- Rio Group Inc
- Riverbend Construction Mtrl
- Robert Clear Coal Corp
- Robirson Nevada Mining Co
- Rock Ridge Quarries
- Rockhouse Creek Development
- Romarco
- Ron Coleman Mining Inc
- Roses Creek Mining
- Round Mountain Gold Corp
- Royal Standard Minerals Inc
- Ruby Garnet Inc
- Ruscat Enterprises Inc
- Rust Mining
- S & S Aggregate Co
- S & S Intl Mining
- S B Energy Inc
- S J Davis Family Trust
- Sandy Creek Mining Co
- Scorpio Mining Inc
- Searchlight Mercantile Co
- Sermines Inc
- Sesa Fluorspar Inc
- Sheep Ranch Mining Corp
- Shenandoah Mining Co
- Shipman Mining & Exploration
- Shiron Mining Co
- Sidco Mining Co
- Sidco Mining Inc
- Sidney Coal Co
- Sierra Mining & Crushing
- Simpson Mining Shop
- Siskey Hauling Co
- Sizemore Mining Corp
- Slate Creek Mine
- Smith Tractor Parts
- Smithco Enterprise Inc
- Snap Creek Mining Inc
- Solid Energy LLC
- South Akers Mine
- South Akers Mining Co
- South Dakota Mining Assn
- Southern Coal & Land
- Southern Cross Resources
- Southfork Coal Co
- Southfork Coal Co
- Sovereign Gold Co LTD
- Specialty Minerals Inc
- Speed Mining Inc
- Spencer Opal Mines
- Spokane Bar Plus Sapphire
- Spring Creek Coal Co
- Springer Mining Co
- SRP Mining LLC
- Standard Industrial Minerals
- Standard Industrial Minerals
- Star Morning Holdings
- Starfire Mining
- Starfire Mining
- Starfire Mining Scale House
- Stavola Mining & Development
- Stellar Resources LTD
- Sterling Mining Co
- Sterling Mining Co
- Sterling Mining Co
- Sterling Mining South Mine
- Stillwater Mining Co
- Stillwater Mining Co
- Stillwater Mining Co
- Stillwater Mining Co
- Stillwater Mining Co
- Stillwater Mining Co
- Stollings Trucking Co
- Stone Chapel Mine Amer Mining
- Straight Fork Mining
- Straight Fork Mining Inc
- Strata Mine Svc Inc
- Strategic Minerals Corp
- Sturgeon Mnining
- Subsurface Machine & Mfg Inc
- Sullivan Mining Corp
- Sunny Ridge Mining
- Sunnyside Gold Corp
- Sunshine Mining Co
- Sutro Mine
- Sutro Tunnel Co
- Sutter Gold Mining Co
- Suzorite Mica Products
- Synergex Group
- T E Consolidated
- T P Mining Inc
- Taiga Mining Co Inc
- Tampa Bay Resources
- Taylor Mining LTD
- Tazewell Mining Supply & Eqpt
- Teck Cominco Alaska Inc
- Teck Cominco Alaska Inc
- Teck Cominco American Inc
- Teck Cominco American Inc
- Tennco Inc
- Texas Brine Corp
- Thermocal Mines Of Idaho
- Thomas Construction Co Inc
- Thompson Creek Metals Co
- Thompson Creek Mining Co
- Tillmac Industries & Mining
- TOCO Mining
- Tonogold Resources Inc
- Transafrica Mining Co
- Trapper Mining Inc
- Treasure Canyon Enterprises
- Trend Mining Co
- Trend Mining Co
- Tri County Mining
- Tri-Con Mining Inc
- Tri-State Mine Cable Co
- Tri-Valley Corp
- Triad Mining Co Of Indiana
- Triad Mining Inc
- Triad Mining Inc
- Triad Warsh Plant
- Triple M Mining Inc
- Triumph Corp
- True Energy Coal Sales Inc
- True Line Inc
- TSM Mining Inc
- Tule Springs Sunstones Inc
- Tunnel Hill Reclamation
- Turkey Creek Energy LLC
- Twin Creek Mine
- Twin Mountain Rock Co
- Twin Peaks
- Twin Pines Coal Co Inc
- Twin Pines Coal Co Inc
- Twin Pines Coal Co Sale House
- Twin Resources
- Twin Resources
- Twin Resources
- TXU Mining
- TXU Mining
- TXU Mining
- TXU Mining Co
- Tygart Valley Mining Inc
- Tygart Valley Mining Inc
- U S Clay LP
- U S Gold Corp
- Umetco Minerals Corp
- Umetco Minerals Corp
- Umetco Minerals Corp
- Umicore Optical Materials
- Unico Inc
- Unicorn Mining Inc
- Unimin Corp
- Unimin Corp
- Unimin Corp
- Unimin Corp
- Unimin Corp
- Unimin Corp
- Unimin Corp
- Unimin Corp Schoolhouse
- Union Mines
- United Mineral Corp
- United Minerals Inc
- United Mining Corp
- Unlimited Coal Co
- Upstream Mining Group
- Uranium Resources Inc
- Uranium Resources Inc
- URI Inc
- US Borax
- US Borax & Chemical Co
- US Borax & Chemical Co
- US Borax & Chemical Co
- US Borax & Chemical Co
- US Borax Inc
- Us Micro Powders Inc
- Us Molly Corp
- Us Precious Metals Inc
- US Steel-Keewatin Taconite
- Usibelli Coal Mine Inc
- Usibelli Coal Mine Inc
- Usibelli Coal Mine KBC
- USMG
- Valley Clay Mining Co
- Valley Clay Mining Co
- Valley Mining
- Valley Mining Inc
- Valley Mining Inc
- Valley Mining Inc
- Vertexgroup
- Victoria Resources
- Vigo Coal Co
- Vigo Coal Co
- Vigo Coal Co
- Villeneuve & Assoc Inc
- Virginia Mountain Micro LTD
- Virginia Vulcanizing Inc
- Vista Continental
- Voest Alpine Mining Tunneling
- W A Mining Inc
- W M Bledsoe Co
