St. Louis-based Arch Coal is one of the nation's largest coal producers, with revenues of $2.4 billion in 2007. The company's core business is providing U.S. power generators with cleaner-burning, low-sulfur coal for electric generation. Through its national network of mines, Arch supplies the fuel for roughly 6 percent of the electricity generated in the United States.
http://stlouis.bizjournals.com/stlouis/stories/2008/01/28/dai...
from the article
"2007 was a transitional year for U.S. coal markets," Steven Leer, Arch's chairman and CEO, said in a statement. "With increased coal consumption and reduced production levels, the market was able to essentially rebalance itself. Looking ahead, we foresee a dynamic coal market in 2008, with robust international coal demand providing the catalyst for further strengthening in domestic coal markets. While expectations for a U.S. economic slowdown remain a concern, normal weather trends and strong global markets are driving price levels to new highs."