Nighthawk Energy Share News (HAWK)

US focused oil group Nighthawk flew higher Monday after an independent valuation estimated oil in place at its Jolly and Craig Ranch fields to be 1.462 billion barrels gross.Nighthawk has a 50% stake in the fields, part of the Jolly Ranch project, Lincoln County, Colorado.Broker Ambrian called it a "positive" for the company and suggests a recoverable volume of oil net to Nighthawk of 128.6 million barrels, "a material number for company of Nighthawk's size". It maintains 'buy' advice and 62p price target.