Independent oil and gas company Penn Virginia Corp. announced May 30 that Michael Hanna resigned from its board effective immediately.

The company has not disclosed any plans regarding a search for Hanna's successor.

Penn Virginia's operations are focused on the Eagle Ford Shale of south Texas. The company emerged from bankruptcy protection in September 2016. It was set to be acquired by Denbury Resources Corp. for $1.7 billion before the deal fell apart in March.