BALTIMORE, July 16, 2026 (GLOBE NEWSWIRE) -- Adams Natural Resources Fund, Inc. (NYSE: PEO) today announced the Fund’s investment returns for the first half of 2026. The total return on the Fund’s net asset value for the first half of 2026 was 18.4%, with dividends and capital gains reinvested. The comparable figures for the S&P 500 Energy Sector and the S&P 500 Materials Sector were 19.7% and 12.0%, respectively. Our benchmark, which is comprised of the S&P 500 Energy Sector (80%) and the S&P 500 Materials Sector (20%), returned 18.1%. The total return on the Fund’s market price for the same period was 18.2%.