Shares of Vista Energy (VIST) plunged 5.07% in Friday's pre-market trading session following the release of its fiscal second-quarter earnings report. The company's adjusted earnings fell short of expectations, despite a significant increase in revenue.

Vista Energy reported adjusted earnings of $0.55 per diluted share for the quarter ended June 30, down from $0.74 in the same period last year. This decline in earnings came even as the company's revenue surged to $610.5 million, up from $396.7 million a year earlier. While the revenue figure exceeded analysts' expectations of $598.4 million, the drop in earnings appears to have disappointed investors.

The energy sector as a whole was facing downward pressure in pre-market trading, with the Energy Select Sector SPDR Fund (XLE) down 0.5%. However, Vista Energy's decline was notably steeper, suggesting that company-specific factors, particularly the earnings miss, were driving the stock's sharp decrease. As the market digests this earnings report, investors will be closely watching for any further guidance or commentary from Vista Energy's management regarding the company's future outlook and strategies to improve profitability.