Exhibit 99.1 Murphy USA Inc. Reports Second Quarter 2025 Results El Dorado, Arkansas, July 30, 2025 (BUSINESS WIRE) – Murphy USA Inc. (NYSE: MUSA), a leading marketer of retail motor fuel products and convenience merchandise, today announced financial results for the three and six months ended June 30, 2025. Key Highlights: "Second quarter results highlighted the resiliency of Murphy USA's advantaged model, delivering stronger financial results despite relatively low fuel price volatility and slightly weake ...