Diamondback Energy (FANG) shares soared 3.7% in the last trading session to close at $154.91. The move was backed by solid volume with far more shares changing hands than in a normal session. This compares to the stock's 5.2% gain over the past four weeks.FANG stock surged on Friday, driven by a mix of company-specific developments and broader market dynamics. The company’s recent amendment to its credit agreement with Wells Fargo Bank—extending the maturity to 2030 and reducing interest rates—boosted inves ...