NEW YORK ( TheStreet) -- Endeavour Silver ( EXK), Metalline Mining ( MMG) and Coeur d'Alene Mines ( CDE) emerged top gainers last week; Hecla Mining ( HL), Golden Star Resources ( GSS) and Mines Management ( MMG) were on the losing side.Leading the advancers' list, Endeavour Silver and Metalline Mining jumped 30.1% and 27.6%, respectively last week, while Coeur d'Alene Mines climbed 25.5%. For fourth quarter and full-year 2010, Coeur d'Alene reported a 75% increase in metal sales to $208 million and a 72% rise to $515 million, respectively. The company's production guidance for 2011 is 20 million ounces of silver and a 60% increase in gold production to approximately 250,000 ounces. Riding high on silver prices, MAG Silver ( MAG) rose 15.7% past week. Alexco Resources ( AXU) gained 14.2%. Last week, the company said it plans to invest $10 million in advanced exploration at its Onek, Lucky Queen and Silver King properties. Gold stocks U.S. Gold ( UXG) and New Gold ( NGD) were up 11.6% and 11.4%, respectively. New Gold reported consolidated revenue of $189 million for its 2010 fourth quarter last week, up from $132 million in the year-ago quarter. In addition, due to an 11% rise in gold production and a $37 decline per ounce, the company's cash flow from operations soared 131% in 2010. New Gold announced that for fiscal 2011, it expects gold production to increase further to 380,000 to 400,000 ounces at total cash cost per ounce sold, net of by-product sales of $430 to $450 per ounce. Silver stocks Silver Standard Resources ( SSRI) and Silver Wheaton ( SLW) were up 11.3% and 10.7%, respectively. Heading into 2011, Silver Standard Resources estimates production at 8.5 million ounces of silver and 10.0 million pounds of zinc. Meanwhile, Silver Wheaton recently declared an inaugural quarterly cash dividend of 3 cents per share, payable on March 31, 2011. The company estimates production of 27 to 28 million silver equivalent ounces for 2011, including 15,000 ounces of gold. Major coal stocks, Westmoreland Coal ( WLB), International Coal Group ( ICO), Arch Coal ( ACI), Cloud Peak Energy ( CLD) and Patriot Coal ( PCX) gained 8.7%, 8%, 7.8%, 7.3% and 6.9% respectively. Coal producers advanced on surging crude oil prices, spurred by the geopolitical crisis in the Middle East. Hecla Mining declined 6.2% during the past week. The company reported revenue of $418.8 million for 2010, a $106.3 million increase from 2009. The balance sheet is strong with no debt. Adjusted net income stood at $82.6 million. For 2011, Hecla expects silver production between 9 million and 10 million ounces, slightly lower than 2010 levels. Silver production is expected to boost in 2012 as grades increase at Greens Creek and Lucky Friday.