Prairie Mining Ltd. estimated a maiden coal resource estimate of 301 million tonnes of hard coking coal at its wholly owned Debiensko hard coking coal project in Poland.

The JORC 2012-compliant estimate comprises 93 million tonnes in the indicated category and 208 million tonnes in the inferred category.

According to the Feb. 1 release, the coal resource estimate will be used to support Debiensko's ongoing scoping study, which is scheduled to be completed during the current quarter.