After plans for a coal mine at Mt Penny in which the Obeid family had a secret stake worth at least $30 million were scuttled by the Independent Commission Against Corruption and the NSW Government, the Obeids are now facing a nightmare scenario.

They face the prospect of a major open cut mine right next to the family property Cherrydale Park, in the Bylong Valley.

The Korean power company Kepco is seeking approval for a major new mine at Bylong as part of its global strategy to secure a source of energy for its power stations into the future.

An Environmental Impact Statement is on exhibition and submissions are due by November 6.