Nighthawk Energy announces new CFO

US-focused oil company, Nighthawk Energy, has announced that Richard Swindells will join its board of directors as chief financial officer.Swindells will join from investment bank Ambrian Partners, where he acts as broker and nominated adviser to a number of oil and gas and other resources companies. He will work alongside chief executive officer (CEO) Tim Heeley and executive chairman, Mike Thomsen. The firm said that during his three years at Ambrian, Swindells was involved in raising in excess of £275 million in the oil and gas sector.Tim Heeley, CEO, said Swindells' advisory and financing experience would be invaluable as Nighthawk focused on growth."As previously announced, we intend to further augment the executive team with the addition of a chief operating officer as part of our focus on driving the Jolly Ranch project forward," he said.Shares in Nighthawk dived in late April after it revealed low initial reserve numbers at its 50%-owned Jolly Ranch Project in eastern Colorado, US. The group said that proved reserves have only been attributed for two wells from the Cherokee formation (Craig 4-4 and Craig 16-32), as proved reserves have been limited to wells that are projected to recover 20,000 barrels or more.