 If you're interested in buying or selling, call Nick and his team at AmFed, Coin & Bullion, 800-221-7694, AmericanFederal.com, AmericanFederal.com. Attention, black hats. Are you ready for another Marfork Coal Company job fair? That's right. Marfork is looking for experienced miners. If you're a certified underground coal miner, Marfork offers excellent benefits and wages.