Feb 13 (Reuters) - Prairie Mining Ltd PDZ.AX :
* FORMALLY NOTIFIED POLISH GOVERNMENT THAT THERE EXISTS AN INVESTMENT DISPUTE BETWEEN PRAIRE AND GOVERNMENT
* DISPUTE ARISES OUT OF SOME MEASURES TAKEN BY POLAND "IN BREACH OF" ENERGY CHARTER TREATY, UK-POLAND BILATERAL INVESTMENT TREATY
* DISPUTE ALSO ARISES OUT OF SOME MEASURES TAKEN BY POLAND "IN BREACH OF" AUSTRALIA-POLAND BILATERAL INVESTMENT TREATY