Dallas, 8 November 2010

Allegro Development Corporation, a leading provider of energy trading and risk management (ETRM) software, announced today that Patriot Coal Corporation will implement its Allegro 8 software.  Patriot’s dynamic business demanded automation and further enhancements to the company’s current credit and risk management processes.  In addition, Allegro 8 will provide Patriot with a trading and regulatory compliance platform so that Patriot will be better prepared to enter into the coal trading arena as corporate objectives and market conditions warrant.

Patriot Coal Corporation is a leading producer and marketer of coal in the eastern United States, with 14 mining complexes in Appalachia and the Illinois Basin. Patriot ships to domestic and international electricity generators, industrial users and metallurgical coal customers, and controls approximately 1.8 billion tons of coal reserves.

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