- IMV
- Industrial Minerals
- Industrial Mining Co
- Inland Steel Mining Co
- Intermtn Mining Contractors
- International Star Inc
- International Uranium Corp
- Interwest Mining
- Intrepid Potash
- Irelan Mines
- Island Mountain Co
- ISSI
- J & H Mining Parts
- J & N Mine Construction
- J M Wilson Mining Co
- J R Simplot Co
- Jacob's Ranch Coal Co
- James H Taylor Mining Co Inc
- James H Taylor Mining Inc
- JBR Mining & Exploration
- Jericol Mining Co Inc
- Jericol Mining Inc
- Jim Walter Resources Inc
- Jim Walter Resources Inc
- Jim Walter Resources Inc
- Jim Walter Resources Inc
- Jim Walter Resources Inc
- Jmays L LC
- John J Gardiner & Assoc
- Jones & Turner Inc
- JPJ Inc
- Jumbo Mining Co Inc
- Junction City Minig
- Junction City Mining Co
- Junction City Mining Railyard
- K T Minerals Inc
- Kalamazoo Materials Inc
- Kamlock International Mining
- Kanawha Eagle
- Kannan Mining Co
- Kathleen Materials
- Kennecott Corp
- Kennecott Corp
- Kennecott Eagle Project
- Kennecott Eagle Project
- Kennecott Exploration Co
- Kennecott Flambeau Mining Co
- Kennecott Greens Creek Mining
- Kennecott Rawhide Mining Co
- Kennecott Ridgeway Mining Co
- Kennecott Uranium Co
- Kentucky May Coal Co
- Kentucky May Coal Co
- Kentucky May Coal Co
- KERR-Mc Gee Corp
- KERR-Mc Gee Corp
- Killer River Operations
- Kimberly Gold Mines Inc
- Kings Mountain Mining LLC
- Kings Town Inc
- KMI Zeolite
- Knife River Coal Mining Co
- Knott County Mining
- Knott County Mining
- KXEN Inc
- Kyanite Mining Corp
- Kyanite Mining Corp
- Kyanite Mining Corp
- L & M Mineral
- LA Cuesta Intl
- Lake Shore Mining Co Inc
- Lambert Coal Co
- Landmark Mining Co
- Landmark Mining Co
- Latin American Gold Advisors
- Laurel Creek Co Inc
- Leadville Mining & Milling
- Leadville Mining & Milling
- Leadville Silver & Gold Inc
- Lebo Mining Co
- Left Fork Mining Co Inc
- Lexco Inc
- Lexco Inc
- Lexmin Inc
- Liberty Mine
- Liberty Star Gold
- Lightning Contract Svc Inc
- Lincoln Gold & Tungsten
- Linwood Mining & Minerals Corp
- Lisbon Valley Mining Co
- Little Hawk Mining LLC
- Little Squaw Gold Mining Co
- Little Squaw Gold Mining Co
- Little Ty Coal
- Lode Star Gold Inc
- Lodestar Mining & Exploration
- Log Pile LLC
- London Deep Mines Co
- Lone Star Mining
- Lone Tree Mine
- Loren International LLC
- Lorusso Sm & Sons Inc
- Lost River Mining
- Lu Mining
- Lu Mining
- Luzenac America Inc
- Luzenac America Inc
- Luzenac America Inc
- Luzenac America Inc
- Luzenac America Inc
- M K Resources Co
- M-I LLC
- Mach Mining LLC
- Mackenzie Mining & Constr
- Maggard Mining Inc
- Magma Minerals Inc
- Magorian Mine Svc
- Mammoth Lakes Mining Corp
- Mammoth Lakes Mining Corp
- Mantle Mining Co
- Maple Ridge Mining
- Maple Ridge Mining Co
- Marigold Mining Co
- Marsh Coal Co
- Maryrose Mining Corp
- Masaba Mining Equipment
- Matric LTD
- Maxam Gold Corp
- Mc Cullah & Sons Coal Co
- Mc Kenzie Bay Resources LTD
- Mc Rae & Assoc
- Mc Rae & Assoc
- Meade & Shepherd Coal Co
- Meadow Branch Mining Corp
- Meadow Fork Mining
- Mega Power Southeast WV Mining
- Menefee Mining Corp
- Merendon Mining Nevada Inc
- Merger Mines Corp
- Meridian Beartrack Co
- Metalex Resources Inc
- Metalex Resources Inc
- Metallic Goldfield Inc
- Metallic Ventures Gold Inc
- Metalline Mining Co
- Metalline Mining Co
- Metalline Mining Co
- MFM Industries
- MHI Real Co
- MHI Real Co
- Mid Gard Mining Co
- Mid-Florida Mining Co
- Midway Gold Corp
- Midwest Coal Co
- Milwhite Inc
- Mind Mining
- Minefinders USA Inc
- Minera Andes Inc
- Mineral Exploration & Develop
- Mineral Hill Mine
- Mineral Resources
- Mineral Ventures LLC
- Minerals Investment Co
- Mines Management Inc
- Mining Componets Inc
- Mining Environment Svc
- Mining Ridge Baptist Church
- Mining Ridge Baptist Church
- Mining Services Intl WV Inc
- Mining Technologies Inc
- Mining Technologies Intl Inc
- Minn Mining & Mfg
- Minnesota Consolidated Mining
- Minnesota Mining
- Minnesota Mining & Mfg Co
- Minnesota Mining & Mfg Co
- Minnesota Mining Plant 2
- Minnesota Steel Industries
- Minobras Mining Svc
- Minserco Inc
- Miocene Mining & Milling Co
- Mirand Gold Corp
- Mississippi Potash
- Misty Mountain Mining Inc
- Mitsubishi Materials
- Mitsui Mining & Smelting Co
- Mitsui Mining USA Inc
- Molycorp Inc
- Molycorp Inc
- Monarch Gold Expl Inc
- Monarch Mining Co
- Monarch Mining Office
- Montana Tunnels Mine Inc
- Montanore Mining Co
- Monterey Coal Co
- Montezuma Mines Inc
- Montgomery Watson Mining Group
- Moore Mining
- Morefield Gem Mine
- Mosaic
- Mossy Creek Mining
- Mossy Creek Mining LLC
- Mossy Creek Mining LLC
- Mother Lode Gold Mines
- Mount Mica Rarities
- Mountain Edge Mining Inc
- Mpe Enterprises
- Mt Royale Ventures LLC
- Mt View Resources Inc
- Mud Camp Mining
- Mule Canyon Mine
- Mullins & Sons Coal Co
- Mystery Creek Resources
- N L Industries
- National Mining Corp
- Nationwide Mining
- Natural Mining Intl
- Natural Soda Inc
- Navasota Mining Co Inc
- Nelson-Deppe Inc
- Nesco Inc
- Nevada Mining Corp
- Nevada North Resources USA
- Nevada Pacific Gold
- Nevada Pacific Minerals
- New Coal Co Inc
- New Coal Co Inc Washer
- New Horizons Coal Inc
- New River Mining Co Inc
- New River Processing Co Inc
- New Sleeper Gold Corp LLC
- New Smuggler Mine Corp
- Newhall Mining Co
- Newmill Mining Assoc Inc
- Newmont Exploration LTD
- Newmont Exploration LTD
- Newmont Exploration LTD
- Newmont Mining
- Newmont Mining
- Newmont Mining Corp
- Newmont Mining Corp
- Newmont Mining Corp
- Newmont Technology Limited
- Newton-Young Mining Co
- Nexgen Highwall Mining Svc
- Nfc Mining
- NMC Inc
- Noranda Grey Eagle Mines Inc
- Noranda Mining Inc
- Noranda Sales Inc
- Nord Copper Corp
- Nord Resources Corp
- North American Coal
- North American Coal Corp
- North American Emerald Mines
- North Fork Coal Corp Mine
- North Fork Mining Corp
- North Star Intl
- Northeast Solite Corp
- Northeast Solite Geology Dept
- Northern Dynasty Mines Inc
- Northern Mining Inc
- Northland Minerals Inc
- Northshore Mining Co
- Northshore Mining Co
- Northwestern Resources Co
- Nova Gold Resources
- Nyac Mining Co
- NYCO
- NYCO
- O-N Minerals
- Office Of Surface Mining
- Offield Placer Mine
- Ogon Mining Co
- Old Pressley Sapphire Mine
- Omega Mining Inc
- Omya
- Opal Mountain Mines
- Open Space Institute Inc
- Ore House Saloon Inc
- Original Sixteen To One Mine
- Orovada Exploration & Mining
- Otteson's Blue Dream Mining Co
- Owyhee Calcium Products Inc
- Oxbow Inc
- Oxbow Mining Inc
- Oxford Mining
- Oxford Mining
- Oxford Mining Co
- Oxford Mining Co
- Oxford Mining Co
- Oxford Mining Inc
- Oxidor Corp Inc
- Oxidor Corp Inc
- P & H
- P & H Mining
- P & P Construction
- P B Energy Storage Svc Inc
- P C Illinois Synthetic Fuels
- P C Kentucky Synthetic Fuels
