Shares of Natural Resource Partners L.P. NRP have risen 1.2% since reporting results for second-quarter 2025 on Aug. 6. Over the same period, the S&P 500 has gained 0.8%. In the past month, the stock has advanced 5.7%, outperforming the S&P 500’s 1.8% growth.In the second quarter of 2025, NRP...