The share price of Empire Petroleum Corporation (NYSEAMERICAN:EP) fell by 18.15% between September 5 and September 12, 2025, putting it among the Energy Stocks that Lost the Most This Week. Empire Petroleum (EP) Dipped Recently. Here's Why. Empire Petroleum Corporation (NYSEAMERICAN:EP) is a conventional oil and natural gas producer with a main focus in the US onshore. Empire Petroleum Corporation (NYSEAMERICAN:EP) faced downward pressure following reports that Matthew E. Watson, the company’s Chief Acc ...