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%.

The Semi-Annual Report to Shareholders is expected to be released on or about July 22, 2026.

ANNUALIZED COMPARATIVE RETURNS (6/30/2026) 1 Year3 Year5 Year10 YearAdams Natural Resources Fund (NAV)26.5%13.0%17.0%9.4%Adams Natural Resources Fund (market price)25.9%15.7%17.7%9.6%S&P 500 Energy Sector29.0%12.8%19.0%8.7%S&P 500 Materials Sector16.7%8.9%6.3%10.4%

NET ASSET VALUE ANNOUNCED

The Fund’s net asset value at June 30, 2026, compared with the year earlier, was:

  6/30/20266/30/2025Net assets$769,147,614$634,743,865Shares outstanding28,034,83926,888,697Net asset value per share$27.44$23.61
TEN LARGEST EQUITY PORTFOLIO HOLDINGS (6/30/2026) % of Net AssetsExxon Mobil Corporation23.9%Chevron Corporation12.6%ConocoPhillips6.0%Williams Companies, Inc.4.1%Valero Energy Corporation3.8%Linde plc3.6%SLB Ltd.3.3%Targa Resources Corp.3.2%Phillips 663.1%Marathon Petroleum Corporation2.7%Total66.3%
INDUSTRY WEIGHTINGS (6/30/2026)  % of Net AssetsEnergy Integrated Oil & Gas38.5%Exploration & Production14.8%Storage & Transportation10.7%Refining & Marketing9.6%Equipment & Services6.9%Materials Chemicals10.2%Metals & Mining5.2%Construction Materials2.2%Containers & Packaging1.1%

About Adams FundsSince 1929, Adams Funds has consistently helped generations of investors reach their investment goals. Adams Funds is comprised of two closed-end funds, Adams Diversified Equity Fund, Inc. NYSE:ADX and Adams Natural Resources Fund, Inc. NYSE:PEO. The Funds are actively managed by an experienced team with a disciplined approach and have paid dividends for more than 90 years across many market cycles. The Funds are committed to paying a minimum annual distribution rate of 8% of NAV paid evenly each quarter throughout the year, providing reliability for long-term shareholders. A portion of any distribution may be treated as paid from sources other than net income, including but not limited to short-term capital gain, long-term capital gain, and return of capital. The final determination of the source of all distributions for tax reporting purposes in a calendar year, including the percentage of qualified dividend income, will be made after year-end. Shares can be purchased through our transfer agent or through a broker. For more information about Adams Funds, please visit: .

CONTACT:For further information, please contact: adamsfunds.com/about/contact │ 800.638.2479