The country's energy sector regulator, CRE, imposed the fine, which totaled around $466 million at the end of May, on Iberdrola Energia Monterrey for violating a so-called self-supply power generation permit, after allegedly selling energy to its partners. "The requested (stay) is granted so that the collection of the fine will not be executed," the document said. Neither the CRE nor Iberdrola immediately responded to a Reuters request for comment.