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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM N-CSR

CERTIFIED SHAREHOLDER REPORT OF REGISTERED
MANAGEMENT INVESTMENT COMPANIES

Investment Company Act file number 811-22216

GAMCO Natural Resources, Gold & Income Trust

(Exact name of registrant as specified in charter)

One Corporate Center
Rye, New York 10580-1422

(Address of principal executive offices) (Zip code)

John C. Ball
Gabelli Funds, LLC
One Corporate Center
Rye, New York 10580-1422

(Name and address of agent for service)

Registrant’s telephone number, including area code: 1-800-422-3554

Date of fiscal year end: December 31

Date of reporting period: June 30, 2025

Form N-CSR is to be used by management investment companies to file reports with the Commission not later than 10 days after the transmission to stockholders of any report that is required to be transmitted to stockholders under Rule 30e-1 under the Investment Company Act of 1940 (17 CFR 270.30e-1). The Commission may use the information provided on Form N-CSR in its regulatory, disclosure review, inspection, and policymaking roles.

A registrant is required to disclose the information specified by Form N-CSR, and the Commission will make this information public. A registrant is not required to respond to the collection of information contained in Form N-CSR unless the Form displays a currently valid Office of Management and Budget (“OMB”) control number. Please direct comments concerning the accuracy of the information collection burden estimate and any suggestions for reducing the burden to Secretary, Securities and Exchange Commission, 100 F Street, NE, Washington, DC 20549-1090. The OMB has reviewed this collection of information under the clearance requirements of 44 U.S.C. § 3507.

Item 1. Reports to Stockholders.

| (a) | Include a copy of the report transmitted to stockholders pursuant to Rule 30e-1 under the Act (17 CFR 270.30e-1).

|  | The Report to Shareholders is attached herewith.

GAMCO Natural Resources, Gold & Income Trust

Semiannual Report — June 30, 2025

(Y)our Portfolio Management Team

| Caesar M. P. Bryan |  | Vincent Hugonnard-Roche |

To Our Shareholders,

For the six months ended June 30, 2025, the net asset value (NAV) total return of the GAMCO Natural Resources, Gold & Income Trust (the Fund) was 21.4%, compared with total returns of (1.3)% and 51.0% for the Chicago Board Options Exchange (CBOE) Standard & Poor’s (S&P) 500 Buy/Write Index and the Philadelphia Gold & Silver Index (XAU), respectively. The total return for the Fund’s publicly traded shares was 23.7%. The Fund’s NAV per share was $7.04, while the price of the publicly traded shares closed at $6.29 on the New York Stock Exchange (NYSE). See page 3 for additional performance information.

Enclosed are the financial statements, including the schedule of investments, as of June 30, 2025.

Investment Objective and Strategy (Unaudited)

The GAMCO Natural Resources, Gold & Income Trust is a diversified, closed-end management investment company. The Fund’s investment objective is to provide a high level of current income. The Fund’s secondary investment objective is to seek capital appreciation consistent with the Fund’s strategy and primary objective. Under normal market conditions, the Fund will attempt to achieve its objectives by investing 80% of its assets in equity securities of companies principally engaged in natural resource and gold industries, and by writing covered call options on the underlying equity securities.

As permitted by regulations adopted by the Securities and Exchange Commission, paper copies of the Fund’s annual and semiannual shareholder reports will no longer be sent by mail, unless you specifically request paper copies of the reports. Instead, the reports will be made available on the Fund’s website (www.gabelli.com), and you will be notified by mail each time a report is posted and provided with a website link to access the report. If you already elected to receive shareholder reports electronically, you will not be affected by this change and you need not take any action. To elect to receive all future reports on paper free of charge, please contact your financial intermediary, or, if you invest directly with the Fund, you may call 800-422-3554 or send an email request to info@gabelli.com.

Performance Discussion (Unaudited)

In the first half of 2025, gold and gold equities benefitted from policy changes of the new presidential administration. The primary catalysts for gold’s strength remain a combination of persistent global financial uncertainty, escalating tariff threats, and widespread geopolitical tensions. Macroeconomic factors, including a weakening U.S. dollar and persistent inflation, further bolstered gold’s appeal. The oil sector continues to be oversupplied, but pricing has fluctuated, primarily based on geopolitical dynamics, with WTI dropping 8.9%. Refining margins continue their lower trend, while the U.S. and OPEC saw an expected increase in production.

Top contributors to the portfolio all benefitted from the surge in gold price, and included Newmont Corporation (3.4% of total investments as of June 30, 2025), which reported strong first quarter results and saw record free cash flow further supported by aggressive asset divesture and strong debt reduction; Kinross Gold Corp. (3.1%), the Canadian gold and silver miner which saw performance gains driven by robust operational results and improved financial health; and Ludin Gold Inc. (no longer held), which saw sustained momentum from increased infrastructure investment and a broadened regional exploration program.

Detractors from performance included companies with exposure to the energy sector. ONEOK, Inc. (0.6%), reported a significant earnings miss in the first quarter and saw additional pressure from mixed demand in the midstream energy sector; Halliburton Co. (0.2%), experienced a dip in revenue and sluggish energy market activity; and ConocoPhillips (0.7%), which lowered full-year capex and operating cost guidance while reaffirming production outlook.

Thank you for your investment in the GAMCO Natural Resources, Gold & Income Trust.

We appreciate your confidence and trust.

The views expressed reflect the opinions of the Fund's portfolio managers and Gabelli Funds, LLC, the Adviser, as of the date of this report and are subject to change without notice based on changes in market, economic, or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.

2

Comparative Results

Average Annual Returns through June 30, 2025 (a) (Unaudited)

|  | Six Months |  |  | 1 Year |  |  | 3 Year |  |  | 5 Year |  |  | 10 Year |  |  | Since Inception (1/27/11) |
GAMCO Natural Resources, Gold & Income Trust (GNT) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
NAV Total Return (b) |  |  | 21.42 | % |  |  | 21.41 | % |  |  | 15.98 | % |  |  | 11.26 | % |  |  | 6.46 | % |  |  | 2.00 | %
Investment Total Return (c) |  |  | 23.71 |  |  |  | 23.60 |  |  |  | 18.64 |  |  |  | 13.30 |  |  |  | 7.27 |  |  |  | 1.51 |
CBOE S&P 500 Buy/Write Index |  |  | (1.25 | ) |  |  | 10.25 |  |  |  | 9.39 |  |  |  | 10.16 |  |  |  | 6.42 |  |  |  | 6.64 |
Philadelphia Gold & Silver Index |  |  | 51.04 |  |  |  | 51.86 |  |  |  | 24.91 |  |  |  | 11.54 |  |  |  | 13.88 |  |  |  | 1.57 |
Dow Jones U.S. Basic Materials Index |  |  | 9.03 |  |  |  | 1.00 |  |  |  | 7.90 |  |  |  | 11.70 |  |  |  | 7.95 |  |  |  | 6.53 | (d)
S&P Global Agribusiness Equity Index |  |  | 13.93 |  |  |  | 17.68 |  |  |  | 2.95 |  |  |  | 12.64 |  |  |  | 6.02 |  |  |  | 5.62 |

(a) | Performance returns for periods of less than one year are not annualized. Returns represent past performance and do not guarantee future results. Investment returns and the principal value of an investment will fluctuate. The Fund’s use of leverage may magnify the volatility of net asset value changes versus funds that do not employ leverage. When shares are sold, they may be worth more or less than their original cost. Current performance may be lower or higher than the performance data presented. Visit www.gabelli.com for performance information as of the most recent month end. The CBOE S&P 500 Buy/Write Index is an unmanaged benchmark index designed to reflect the return on a portfolio that consists of a long position in the stocks in the S&P 500 Index and a short position in a S&P 500 (SPX) call option. The Philadelphia Gold & Silver Index is an unmanaged indicator of stock market performance of large North American gold and silver companies. The Dow Jones U.S. Basic Materials Index measures the performance of the basic materials sector of the U.S. equity market. The S&P Global Agribusiness Equity Index is designed to provide exposure to twenty-four of the largest publicly traded agribusiness companies, comprised of a mix of Producers, Distributors & Processors, and Equipment & Materials Suppliers companies. Dividends are considered reinvested. You cannot invest directly in an index.
(b) | Total returns and average annual returns reflect changes in the NAV per share and reinvestment of distributions at NAV on the ex-dividend date and are net of expenses. Since inception return is based on an initial NAV of $19.06.
(c) | Total returns and average returns reflect changes in closing market values on the NYSE and reinvestment of distributions. Since inception return is based on an initial offering price of $20.00.
(d) | From January 31, 2011, the date closest to the Fund’s inception for which data are available.

Investors should carefully consider the investment objectives, risks, charges, and expenses of the Fund before investing.

3

Summary of Portfolio Holdings (Unaudited)

The following table presents portfolio holdings as a percent of total investments before options written as of June 30, 2025:

GAMCO Natural Resources, Gold & Income Trust

Long Positions |  |  |
Metals and Mining |  |  | 46.8 | %
Energy and Energy Services |  |  | 18.0 | %
U.S. Government Obligations |  |  | 16.5 | %
Agriculture |  |  | 7.1 | %
Machinery |  |  | 3.8 | %
Health Care |  |  | 3.4 | %
Specialty Chemicals |  |  | 2.2 | %
Food and Beverage |  |  | 2.2 | %
|  |  | 100.0 | %

Short Positions |  |  |
Call Options Written |  |  | (4.0 | )%
Put Options Written |  |  | (0.1 | )%
|  |  | (4.1 | )%

The Fund files a complete schedule of portfolio holdings with the Securities and Exchange Commission (the SEC) for the first and third quarters of each fiscal year on Form N-PORT. Shareholders may obtain this information at www.gabelli.com or by calling the Fund at 800-GABELLI (800-422-3554). The Fund’s Form N-PORT is available on the SEC’s website at www.sec.gov and may also be reviewed and copied at the SEC’s Public Reference Room in Washington, DC. Information on the operation of the Public Reference Room may be obtained by calling 800-SEC-0330.

Proxy Voting

The Fund files Form N-PX with its complete proxy voting record for the twelve months ended June 30, no later than August 31 of each year. A description of the Fund’s proxy voting policies, procedures, and how each Fund voted proxies relating to portfolio securities is available without charge, upon request, by (i) calling 800-GABELLI (800-422-3554); (ii) writing to The Gabelli Funds at One Corporate Center, Rye, NY 10580-1422; or (iii) visiting the SEC’s website at www.sec.gov.

4

GAMCO Natural Resources, Gold & Income Trust

Schedule of Investments — June 30, 2025 (Unaudited)

|  |  |  |  |  |  |  | Market |
Shares |  |  |  |  | Cost |  |  | Value |
|  |  |  | COMMON STOCKS — 79.0% |  |  |  |  |  |  |  |
|  |  |  | Agriculture — 7.1% |  |  |  |  |  |  |  |
| 39,200 |  |  | Archer-Daniels-Midland Co.(a) |  | $ | 2,421,830 |  |  | $ | 2,068,976 |
| 15,000 |  |  | Bunge Global SA(a) |  |  | 1,299,610 |  |  |  | 1,204,200 |
| 45,700 |  |  | Corteva Inc.(a) |  |  | 2,935,708 |  |  |  | 3,406,021 |
| 18,500 |  |  | Darling Ingredients Inc.† |  |  | 765,073 |  |  |  | 701,890 |
| 6,500 |  |  | FMC Corp. |  |  | 243,815 |  |  |  | 271,375 |
| 46,400 |  |  | Nutrien Ltd.(a) |  |  | 2,990,069 |  |  |  | 2,702,336 |
|  |  |  |  |  |  | 10,656,105 |  |  |  | 10,354,798 |
|  |  |  | Energy and Energy Services — 18.0% |  |  |  |  |  |  |  |
| 6,800 |  |  | APA Corp. |  |  | 135,116 |  |  |  | 124,372 |
| 16,700 |  |  | Baker Hughes Co. |  |  | 836,401 |  |  |  | 640,278 |
| 23,200 |  |  | BP plc, ADR(a) |  |  | 980,764 |  |  |  | 694,376 |
| 18,000 |  |  | Chevron Corp.(a) |  |  | 3,032,407 |  |  |  | 2,577,420 |
| 11,200 |  |  | ConocoPhillips(a) |  |  | 1,329,567 |  |  |  | 1,005,088 |
| 12,900 |  |  | Coterra Energy Inc. |  |  | 376,519 |  |  |  | 327,402 |
| 10,000 |  |  | Devon Energy Corp. |  |  | 688,855 |  |  |  | 318,100 |
| 3,500 |  |  | Diamondback Energy Inc. |  |  | 691,513 |  |  |  | 480,900 |
| 33,000 |  |  | Eni SpA |  |  | 596,154 |  |  |  | 534,883 |
| 9,900 |  |  | EOG Resources Inc.(a) |  |  | 1,317,595 |  |  |  | 1,184,139 |
| 12,500 |  |  | EQT Corp. |  |  | 606,835 |  |  |  | 729,000 |
| 4,400 |  |  | Expand Energy Corp. |  |  | 523,534 |  |  |  | 514,536 |
| 44,407 |  |  | Exxon Mobil Corp.(a) |  |  | 5,167,517 |  |  |  | 4,787,075 |
| 16,200 |  |  | Halliburton Co.(a) |  |  | 657,942 |  |  |  | 330,156 |
| 2,900 |  |  | Hess Corp. |  |  | 434,251 |  |  |  | 401,766 |
| 40,600 |  |  | Kinder Morgan Inc.(a) |  |  | 1,125,006 |  |  |  | 1,193,640 |
| 6,100 |  |  | Marathon Petroleum Corp.(a) |  |  | 1,007,011 |  |  |  | 1,013,271 |
| 6,700 |  |  | Occidental Petroleum Corp. |  |  | 437,407 |  |  |  | 281,467 |
| 11,500 |  |  | ONEOK Inc. |  |  | 1,168,759 |  |  |  | 938,745 |
| 7,400 |  |  | Phillips 66 |  |  | 1,058,329 |  |  |  | 882,820 |
| 24,700 |  |  | Schlumberger NV(a) |  |  | 1,584,336 |  |  |  | 834,860 |
| 29,400 |  |  | Shell plc, ADR(a) |  |  | 2,094,591 |  |  |  | 2,070,054 |
| 10,500 |  |  | Suncor Energy Inc. |  |  | 432,845 |  |  |  | 393,225 |
| 4,200 |  |  | Targa Resources Corp. |  |  | 757,796 |  |  |  | 731,136 |
| 22,000 |  |  | The Williams Companies Inc.(a) |  |  | 1,272,060 |  |  |  | 1,381,820 |
| 20,800 |  |  | TotalEnergies SE, ADR |  |  | 1,391,781 |  |  |  | 1,276,912 |
| 5,800 |  |  | Valero Energy Corp. |  |  | 929,148 |  |  |  | 779,636 |
|  |  |  |  |  |  | 30,634,039 |  |  |  | 26,427,077 |
|  |  |  | Food and Beverage — 2.2% |  |  |  |  |  |  |  |
| 63,000 |  |  | Mowi ASA |  |  | 1,213,870 |  |  |  | 1,216,323 |
| 35,600 |  |  | Tyson Foods Inc., Cl. A(a) |  |  | 2,875,897 |  |  |  | 1,991,464 |
|  |  |  |  |  |  | 4,089,767 |  |  |  | 3,207,787 |
|  |  |  | Health Care — 3.4% |  |  |  |  |  |  |  |
| 60,000 |  |  | Bayer AG |  |  | 3,733,988 |  |  |  | 1,804,737 |
| 27,000 |  |  | Elanco Animal Health Inc.† |  |  | 947,070 |  |  |  | 385,560 |
| 18,200 |  |  | Zoetis Inc.(a) |  |  | 3,589,741 |  |  |  | 2,838,290 |
|  |  |  |  |  |  | 8,270,799 |  |  |  | 5,028,587 |

|  |  |  |  |  |  |  | Market |
Shares |  |  |  |  | Cost |  |  | Value |
|  |  | Machinery — 3.8% |  |  |  |  |  |
| 6,600 |  |  | AGCO Corp. |  | $ | 819,949 |  |  | $ | 680,856 |
| 72,500 |  |  | CNH Industrial NV |  |  | 1,042,208 |  |  |  | 939,600 |
| 6,600 |  |  | Deere & Co.(a) |  |  | 3,106,991 |  |  |  | 3,356,034 |
| 9,000 |  |  | The Toro Co. |  |  | 838,395 |  |  |  | 636,120 |
|  |  |  |  |  |  | 5,807,543 |  |  |  | 5,612,610 |
|  |  | Metals and Mining — 42.3% |  |  |  |  |  |
| 6,700 |  |  | Agnico Eagle Mines Ltd. |  |  | 709,487 |  |  |  | 796,831 |
| 104,800 |  |  | Alamos Gold Inc., Cl. A(a) |  |  | 1,906,761 |  |  |  | 2,783,488 |
| 43,256 |  |  | Anglogold Ashanti plc |  |  | 1,505,491 |  |  |  | 1,971,176 |
| 27,500 |  |  | Aris Mining Corp.† |  |  | 136,746 |  |  |  | 185,184 |
| 70,000 |  |  | Artemis Gold Inc.† |  |  | 844,759 |  |  |  | 1,273,288 |
| 24,000 |  |  | Aya Gold & Silver Inc.† |  |  | 133,720 |  |  |  | 215,899 |
| 81,800 |  |  | Barrick Mining Corp.(a) |  |  | 1,985,688 |  |  |  | 1,703,076 |
| 636,965 |  |  | Bellevue Gold Ltd.† |  |  | 619,337 |  |  |  | 377,297 |
| 53,300 |  |  | BHP Group Ltd., ADR(a) |  |  | 3,321,592 |  |  |  | 2,563,197 |
| 199,000 |  |  | Discovery Silver Corp.† |  |  | 377,174 |  |  |  | 435,484 |
| 101,000 |  |  | Dundee Precious Metals Inc. |  |  | 1,166,700 |  |  |  | 1,622,823 |
| 63,200 |  |  | Eldorado Gold Corp.† |  |  | 967,019 |  |  |  | 1,285,488 |
| 92,585 |  |  | Endeavour Mining plc |  |  | 2,094,996 |  |  |  | 2,854,888 |
| 98,245 |  |  | Equinox Gold Corp.† |  |  | 568,319 |  |  |  | 567,069 |
| 56,600 |  |  | Equinox Gold Corp.† |  |  | 386,626 |  |  |  | 325,450 |
| 275,582 |  |  | Evolution Mining Ltd. |  |  | 681,495 |  |  |  | 1,412,906 |
| 13,500 |  |  | Franco-Nevada Corp.(a) |  |  | 2,063,045 |  |  |  | 2,212,920 |
| 68,000 |  |  | Freeport-McMoRan Inc.(a) |  |  | 3,141,568 |  |  |  | 2,947,800 |
| 79,450 |  |  | G Mining Ventures Corp.† |  |  | 658,771 |  |  |  | 1,037,357 |
| 71,000 |  |  | Glencore plc |  |  | 409,752 |  |  |  | 276,391 |
| 31,500 |  |  | Gold Fields Ltd., ADR |  |  | 532,284 |  |  |  | 745,605 |
| 307,206 |  |  | Gold Road Resources Ltd. |  |  | 332,352 |  |  |  | 661,153 |
| 88,000 |  |  | IAMGOLD Corp.† |  |  | 581,256 |  |  |  | 646,800 |
| 147,200 |  |  | K92 Mining Inc.† |  |  | 1,331,919 |  |  |  | 1,660,358 |
| 294,500 |  |  | Kinross Gold Corp.(a) |  |  | 3,738,840 |  |  |  | 4,603,035 |
| 50,500 |  |  | Lundin Gold Inc. |  |  | 1,191,413 |  |  |  | 2,666,385 |
| 85,500 |  |  | Newmont Corp.(a) |  |  | 4,806,071 |  |  |  | 4,981,230 |
| 369,716 |  |  | Northern Star Resources Ltd. |  |  | 3,752,436 |  |  |  | 4,513,745 |
| 64,667 |  |  | OceanaGold Corp. |  |  | 716,900 |  |  |  | 912,718 |
| 62,800 |  |  | Orla Mining Ltd.† |  |  | 619,876 |  |  |  | 629,256 |
| 29,800 |  |  | Pan American Silver Corp. |  |  | 721,961 |  |  |  | 846,320 |
| 957,915 |  |  | Perseus Mining Ltd. |  |  | 2,376,961 |  |  |  | 2,143,536 |
| 46,300 |  |  | Rio Tinto plc, ADR(a) |  |  | 3,638,658 |  |  |  | 2,700,679 |
| 8,800 |  |  | Royal Gold Inc. |  |  | 1,302,386 |  |  |  | 1,564,992 |
| 73,000 |  |  | Victoria Gold Corp.†(b) |  |  | 538,667 |  |  |  | 0 |
| 92,500 |  |  | Wesdome Gold Mines Ltd.† |  |  | 1,076,264 |  |  |  | 1,288,581 |
| 712,417 |  |  | Westgold Resources Ltd. |  |  | 296,002 |  |  |  | 1,345,678 |
| 38,450 |  |  | Wheaton Precious Metals Corp.(a) |  |  | 2,549,120 |  |  |  | 3,452,810 |
|  |  |  |  |  |  | 53,782,412 |  |  |  | 62,210,893 |
|  |  |  | Specialty Chemicals — 2.2% |  |  |  |  |  |  |  |
| 19,655 |  |  | CF Industries Holdings Inc. |  |  | 1,876,864 |  |  |  | 1,808,260 |

See accompanying notes to financial statements.

5

GAMCO Natural Resources, Gold & Income Trust

Schedule of Investments (Continued) — June 30, 2025 (Unaudited)

|  |  |  |  |  |  |  | Market |
Shares |  |  |  |  | Cost |  |  | Value |
|  |  |  | COMMON STOCKS (Continued) |  |  |  |  |  |  |  |
|  |  |  | Specialty Chemicals (Continued) |  |  |  |  |  |  |  |
| 29,700 |  |  | The Mosaic Co. |  | $ | 1,168,842 |  |  | $ | 1,083,456 |
| 8,900 |  |  | Yara International ASA |  |  | 494,707 |  |  |  | 328,472 |
|  |  |  |  |  |  | 3,540,413 |  |  |  | 3,220,188 |
|  |  |  | TOTAL COMMON STOCKS |  |  | 116,781,078 |  |  |  | 116,061,940 |
Principal Amount |  |  |  |  |  |  |  |  |  |
|  |  |  | CONVERTIBLE CORPORATE BONDS — 0.5% |  |  |  |  |  |  |  |
|  |  |  | Metals and Mining — 0.5% |  |  |  |  |  |  |  |
$ | 750,000 |  |  | Allied Gold Corp., 8.750%, 09/07/28(c) |  |  | 742,922 |  |  |  | 675,000 |
|  |  |  | CORPORATE BONDS — 4.0% |  |  |  |  |  |  |  |
|  |  |  | Energy and Energy Services — 0.0% |  |  |  |  |  |  |  |
| 80,000 |  |  | Devon Energy Corp., 4.500%, 01/15/30 |  |  | 74,393 |  |  |  | 79,191 |
|  |  |  | Metals and Mining — 4.0% |  |  |  |  |  |  |  |
| 750,000 |  |  | AngloGold Ashanti Holdings plc, 3.750%, 10/01/30 |  |  | 667,160 |  |  |  | 700,330 |
| 750,000 |  |  | Freeport-McMoRan Inc., 4.125%, 03/01/28 |  |  | 719,792 |  |  |  | 740,212 |
| 675,000 |  |  | Hecla Mining Co., 7.250%, 02/15/28 |  |  | 674,032 |  |  |  | 680,772 |
| 500,000 |  |  | IAMGOLD Corp., 5.750%, 10/15/28(c) |  |  | 500,000 |  |  |  | 495,775 |
| 1,300,000 |  |  | Kinross Gold Corp., 6.250%, 07/15/33(c) |  |  | 1,285,857 |  |  |  | 1,398,482 |
| 1,750,000 |  |  | Northern Star Resources Ltd., 6.125%, 04/11/33(c) |  |  | 1,731,351 |  |  |  | 1,825,589 |
|  |  |  |  |  |  | 5,578,192 |  |  |  | 5,841,160 |
|  |  |  | TOTAL CORPORATE BONDS |  |  | 5,652,585 |  |  |  | 5,920,351 |

Principal |  |  |  |  |  |  |  | Market |
Amount |  |  |  |  | Cost |  |  | Value |
|  |  |  | U.S. GOVERNMENT OBLIGATIONS — 16.5% |  |  |  |  |  |  |  |
$ | 24,550,000 |  |  | U.S. Treasury Bills, 4.187% to 4.332%††, 08/14/25 to 11/20/25(d) |  | $ | 24,331,510 |  |  | $ | 24,330,131 |
TOTAL INVESTMENTS BEFORE OPTIONS WRITTEN — 100.0% |  | $ | 147,508,095 |  |  |  | 146,987,422 |
OPTIONS WRITTEN — (4.1)% |  |  |  |  |  |  |  |
(Premiums received $5,140,089) |  |  |  |  |  |  | (6,104,554 | )
Other Assets and Liabilities (Net) |  |  |  |  |  |  | 1,914,813 |
PREFERRED SHARES |  |  |  |  |  |  |  |
(1,424,960 preferred shares outstanding) |  |  |  |  |  |  | (28,724,000 | )
NET ASSETS — COMMON SHARES |  |  |  |  |  |  |  |
(16,198,039 common shares outstanding) |  |  |  |  |  | $ | 114,073,681 |
NET ASSET VALUE PER COMMON SHARE |  |  |  |  |  |  |  |
($114,073,681 ÷ 16,198,039 shares outstanding) |  |  |  |  |  | $ | 7.04 |

(a) | Securities, or a portion thereof, with a value of $37,422,001 were deposited with the broker as collateral for options written.
(b) | Security is valued using significant unobservable inputs and is classified as Level 3 in the fair value hierarchy.
(c) | Securities exempt from registration under Rule 144A of the Securities Act of 1933, as amended. These securities may be resold in transactions exempt from registration, normally to qualified institutional buyers.
(d) | At June 30, 2025, $14,800,000 of the principal amount was pledged as collateral for options written.
† | Non-income producing security.
†† | Represents annualized yields at dates of purchase.
ADR | American Depositary Receipt

Geographic Diversification |  | % of Total Investments* |  |  | Market Value |
Long Positions |  |  |  |  |  |  |  |
North America |  |  | 77.6 | % |  | $ | 114,029,895 |
Europe |  |  | 11.8 |  |  |  | 17,368,821 |
Asia/Pacific |  |  | 10.1 |  |  |  | 14,843,101 |
South Africa |  |  | 0.5 |  |  |  | 745,605 |
Total Investments — Long Positions |  |  | 100.0 | % |  | $ | 146,987,422 |
Short Positions |  |  |  |  |  |  |  |
North America |  |  | (4.1 | )% |  | $ | (6,052,548 | )
Europe |  |  | (0.0 | )** |  |  | (52,006 | )
Total Investments — Short Positions |  |  | (4.1 | )% |  | $ | (6,104,554 | )

* | Total investments exclude options written.
** | Amount represents greater than (0.05)%.

See accompanying notes to financial statements.

6

GAMCO Natural Resources, Gold & Income Trust

Schedule of Investments (Continued) — June 30, 2025 (Unaudited)

As of June 30, 2025, options written outstanding were as follows:

Description |  | Counterparty |  |  | Number of Contracts |  |  | Notional Amount |  |  | Exercise Price |  |  | Expiration Date |  |  | Market Value |
OTC Call Options Written — (3.8)% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
AGCO Corp. |  | Pershing LLC |  |  | 26 |  |  | USD | 268,216 |  |  | USD | 96.00 |  |  | 10/17/25 |  |  | $ | 32,778 |
AGCO Corp. |  | Pershing LLC |  |  | 20 |  |  | USD | 206,320 |  |  | USD | 112.00 |  |  | 11/21/25 |  |  |  | 11,697 |
AGCO Corp. |  | Pershing LLC |  |  | 20 |  |  | USD | 206,320 |  |  | USD | 115.00 |  |  | 12/19/25 |  |  |  | 11,288 |
Agnico Eagle Mines Ltd. |  | Pershing LLC |  |  | 37 |  |  | USD | 440,041 |  |  | USD | 107.50 |  |  | 07/18/25 |  |  |  | 44,360 |
Agnico Eagle Mines Ltd. |  | Pershing LLC |  |  | 30 |  |  | USD | 356,790 |  |  | USD | 122.00 |  |  | 09/19/25 |  |  |  | 19,830 |
Alamos Gold Inc., Cl. A |  | Pershing LLC |  |  | 380 |  |  | USD | 1,009,280 |  |  | USD | 21.50 |  |  | 07/18/25 |  |  |  | 196,088 |
Anglogold Ashanti plc |  | Pershing LLC |  |  | 56 |  |  | USD | 255,192 |  |  | USD | 45.00 |  |  | 11/21/25 |  |  |  | 31,207 |
Anglogold Ashanti plc |  | Pershing LLC |  |  | 103 |  |  | USD | 469,371 |  |  | USD | 47.00 |  |  | 12/19/25 |  |  |  | 52,509 |
Anglogold Ashanti plc |  | Pershing LLC |  |  | 134 |  |  | USD | 610,638 |  |  | USD | 52.00 |  |  | 02/20/26 |  |  |  | 60,257 |
APA Corp. |  | Pershing LLC |  |  | 68 |  |  | USD | 124,372 |  |  | USD | 23.50 |  |  | 07/18/25 |  |  |  | 51 |
Archer-Daniels-Midland Co. |  | Pershing LLC |  |  | 130 |  |  | USD | 686,140 |  |  | USD | 51.00 |  |  | 08/15/25 |  |  |  | 44,067 |
Archer-Daniels-Midland Co. |  | Pershing LLC |  |  | 112 |  |  | USD | 591,136 |  |  | USD | 52.50 |  |  | 10/17/25 |  |  |  | 37,850 |
Archer-Daniels-Midland Co. |  | Pershing LLC |  |  | 150 |  |  | USD | 791,700 |  |  | USD | 57.50 |  |  | 12/19/25 |  |  |  | 30,943 |
Baker Hughes Co. |  | Pershing LLC |  |  | 47 |  |  | USD | 180,198 |  |  | USD | 45.00 |  |  | 07/18/25 |  |  |  | 33 |
Baker Hughes Co. |  | Pershing LLC |  |  | 60 |  |  | USD | 230,040 |  |  | USD | 45.00 |  |  | 09/19/25 |  |  |  | 1,734 |
Baker Hughes Co. |  | Pershing LLC |  |  | 60 |  |  | USD | 230,040 |  |  | USD | 41.00 |  |  | 11/21/25 |  |  |  | 11,161 |
Barrick Mining Corp. |  | Pershing LLC |  |  | 395 |  |  | USD | 822,390 |  |  | USD | 21.00 |  |  | 07/18/25 |  |  |  | 17,763 |
Barrick Mining Corp. |  | Pershing LLC |  |  | 93 |  |  | USD | 193,626 |  |  | USD | 22.00 |  |  | 09/19/25 |  |  |  | 7,343 |
Barrick Mining Corp. |  | Pershing LLC |  |  | 330 |  |  | USD | 687,060 |  |  | USD | 25.00 |  |  | 11/21/25 |  |  |  | 17,726 |
BHP Group Ltd., ADR |  | Pershing LLC |  |  | 160 |  |  | USD | 769,440 |  |  | USD | 52.50 |  |  | 07/18/25 |  |  |  | 1,111 |
BHP Group Ltd., ADR |  | Pershing LLC |  |  | 170 |  |  | USD | 817,530 |  |  | USD | 52.50 |  |  | 09/19/25 |  |  |  | 9,793 |
BHP Group Ltd., ADR |  | Pershing LLC |  |  | 203 |  |  | USD | 976,227 |  |  | USD | 53.00 |  |  | 11/21/25 |  |  |  | 23,624 |
BP plc, ADR |  | Pershing LLC |  |  | 76 |  |  | USD | 227,468 |  |  | USD | 32.00 |  |  | 08/15/25 |  |  |  | 2,151 |
BP plc, ADR |  | Pershing LLC |  |  | 35 |  |  | USD | 104,755 |  |  | USD | 32.00 |  |  | 10/17/25 |  |  |  | 2,563 |
BP plc, ADR |  | Pershing LLC |  |  | 41 |  |  | USD | 122,713 |  |  | USD | 35.00 |  |  | 12/19/25 |  |  |  | 1,690 |
Bunge Global SA |  | Pershing LLC |  |  | 50 |  |  | USD | 401,400 |  |  | USD | 82.50 |  |  | 08/15/25 |  |  |  | 12,932 |
Bunge Global SA |  | Pershing LLC |  |  | 50 |  |  | USD | 401,400 |  |  | USD | 82.50 |  |  | 10/17/25 |  |  |  | 19,950 |
Bunge Global SA |  | Pershing LLC |  |  | 50 |  |  | USD | 401,400 |  |  | USD | 92.50 |  |  | 12/19/25 |  |  |  | 10,100 |
CF Industries Holdings Inc. |  | Pershing LLC |  |  | 60 |  |  | USD | 552,000 |  |  | USD | 87.50 |  |  | 09/19/25 |  |  |  | 47,250 |
CF Industries Holdings Inc. |  | Pershing LLC |  |  | 71 |  |  | USD | 653,200 |  |  | USD | 95.00 |  |  | 11/21/25 |  |  |  | 40,861 |
CF Industries Holdings Inc. |  | Pershing LLC |  |  | 65 |  |  | USD | 598,000 |  |  | USD | 107.00 |  |  | 01/16/26 |  |  |  | 22,518 |
Chevron Corp. |  | Pershing LLC |  |  | 51 |  |  | USD | 730,269 |  |  | USD | 160.00 |  |  | 07/18/25 |  |  |  | 370 |
Chevron Corp. |  | Pershing LLC |  |  | 40 |  |  | USD | 572,760 |  |  | USD | 160.00 |  |  | 10/17/25 |  |  |  | 7,798 |
Chevron Corp. |  | Pershing LLC |  |  | 55 |  |  | USD | 787,545 |  |  | USD | 151.00 |  |  | 11/21/25 |  |  |  | 26,571 |
Chevron Corp. |  | Pershing LLC |  |  | 34 |  |  | USD | 486,846 |  |  | USD | 148.00 |  |  | 01/16/26 |  |  |  | 25,623 |
CNH Industrial NV |  | Pershing LLC |  |  | 320 |  |  | USD | 414,720 |  |  | USD | 12.50 |  |  | 07/18/25 |  |  |  | 20,768 |
CNH Industrial NV |  | Pershing LLC |  |  | 405 |  |  | USD | 524,880 |  |  | USD | 13.00 |  |  | 09/19/25 |  |  |  | 34,886 |
ConocoPhillips |  | Pershing LLC |  |  | 41 |  |  | USD | 367,934 |  |  | USD | 110.00 |  |  | 07/18/25 |  |  |  | 36 |
ConocoPhillips |  | Pershing LLC |  |  | 40 |  |  | USD | 358,960 |  |  | USD | 105.00 |  |  | 09/19/25 |  |  |  | 2,963 |
ConocoPhillips |  | Pershing LLC |  |  | 31 |  |  | USD | 278,194 |  |  | USD | 100.00 |  |  | 11/21/25 |  |  |  | 8,539 |
Corteva Inc. |  | Pershing LLC |  |  | 132 |  |  | USD | 983,796 |  |  | USD | 66.50 |  |  | 07/18/25 |  |  |  | 108,656 |
Corteva Inc. |  | Pershing LLC |  |  | 155 |  |  | USD | 1,155,215 |  |  | USD | 64.00 |  |  | 09/19/25 |  |  |  | 179,805 |
Coterra Energy Inc. |  | Pershing LLC |  |  | 69 |  |  | USD | 175,122 |  |  | USD | 29.50 |  |  | 07/18/25 |  |  |  | 62 |
Coterra Energy Inc. |  | Pershing LLC |  |  | 60 |  |  | USD | 152,280 |  |  | USD | 26.50 |  |  | 10/17/25 |  |  |  | 6,553 |
Darling Ingredients Inc. |  | Pershing LLC |  |  | 70 |  |  | USD | 265,580 |  |  | USD | 41.00 |  |  | 11/21/25 |  |  |  | 24,304 |
Deere & Co. |  | Pershing LLC |  |  | 25 |  |  | USD | 1,271,225 |  |  | USD | 450.00 |  |  | 07/18/25 |  |  |  | 149,250 |
Deere & Co. |  | Pershing LLC |  |  | 22 |  |  | USD | 1,118,678 |  |  | USD | 465.00 |  |  | 09/19/25 |  |  |  | 125,938 |
Deere & Co. |  | Pershing LLC |  |  | 19 |  |  | USD | 966,131 |  |  | USD | 510.00 |  |  | 11/21/25 |  |  |  | 70,585 |
Devon Energy Corp. |  | Pershing LLC |  |  | 50 |  |  | USD | 159,050 |  |  | USD | 37.50 |  |  | 10/17/25 |  |  |  | 3,335 |

See accompanying notes to financial statements.

7

GAMCO Natural Resources, Gold & Income Trust

Schedule of Investments (Continued) — June 30, 2025 (Unaudited)

Description |  | Counterparty |  |  | Number of Contracts |  |  | Notional Amount |  |  | Exercise Price |  |  | Expiration Date |  |  | Market Value |
Devon Energy Corp. |  | Pershing LLC |  |  | 50 |  |  | USD | 159,050 |  |  | USD | 40.00 |  |  | 12/19/25 |  |  | $ | 3,575 |
Diamondback Energy Inc. |  | Pershing LLC |  |  | 14 |  |  | USD | 192,360 |  |  | USD | 171.00 |  |  | 08/15/25 |  |  |  | 335 |
Diamondback Energy Inc. |  | Pershing LLC |  |  | 11 |  |  | USD | 151,140 |  |  | USD | 158.00 |  |  | 10/17/25 |  |  |  | 3,609 |
Diamondback Energy Inc. |  | Pershing LLC |  |  | 10 |  |  | USD | 137,400 |  |  | USD | 172.50 |  |  | 12/19/25 |  |  |  | 2,673 |
Dundee Precious Metals Inc. |  | Pershing LLC |  |  | 350 |  |  | CAD | 765,800 |  |  | CAD | 19.00 |  |  | 07/18/25 |  |  |  | 74,459 |
Dundee Precious Metals Inc. |  | Pershing LLC |  |  | 210 |  |  | CAD | 459,480 |  |  | CAD | 19.00 |  |  | 10/17/25 |  |  |  | 49,149 |
Dundee Precious Metals Inc. |  | Pershing LLC |  |  | 450 |  |  | CAD | 984,600 |  |  | CAD | 19.00 |  |  | 12/19/25 |  |  |  | 116,990 |
Eldorado Gold Corp. |  | Pershing LLC |  |  | 325 |  |  | USD | 661,050 |  |  | USD | 22.00 |  |  | 09/19/25 |  |  |  | 33,205 |
Endeavour Mining plc |  | Pershing LLC |  |  | 310 |  |  | CAD | 1,301,690 |  |  | CAD | 37.00 |  |  | 07/18/25 |  |  |  | 119,835 |
Endeavour Mining plc |  | Morgan Stanley |  |  | 310 |  |  | CAD | 1,301,690 |  |  | CAD | 42.00 |  |  | 09/19/25 |  |  |  | 53,913 |
Endeavour Mining plc |  | Pershing LLC |  |  | 305 |  |  | CAD | 1,280,695 |  |  | CAD | 46.00 |  |  | 11/21/25 |  |  |  | 41,386 |
Eni SpA |  | Morgan Stanley |  |  | 28 |  |  | EUR | 192,640 |  |  | EUR | 13.70 |  |  | 08/15/25 |  |  |  | 6,859 |
Eni SpA |  | Morgan Stanley |  |  | 20 |  |  | EUR | 137,600 |  |  | EUR | 14.00 |  |  | 10/17/25 |  |  |  | 4,238 |
Eni SpA |  | Morgan Stanley |  |  | 18 |  |  | EUR | 123,840 |  |  | EUR | 15.50 |  |  | 12/19/25 |  |  |  | 1,090 |
EOG Resources Inc. |  | Pershing LLC |  |  | 33 |  |  | USD | 394,713 |  |  | USD | 145.00 |  |  | 08/15/25 |  |  |  | 362 |
EOG Resources Inc. |  | Pershing LLC |  |  | 30 |  |  | USD | 358,830 |  |  | USD | 125.00 |  |  | 10/17/25 |  |  |  | 12,696 |
EOG Resources Inc. |  | Pershing LLC |  |  | 36 |  |  | USD | 430,596 |  |  | USD | 130.00 |  |  | 12/19/25 |  |  |  | 16,893 |
EQT Corp. |  | Pershing LLC |  |  | 38 |  |  | USD | 221,616 |  |  | USD | 50.00 |  |  | 08/15/25 |  |  |  | 33,898 |
EQT Corp. |  | Pershing LLC |  |  | 47 |  |  | USD | 274,104 |  |  | USD | 50.00 |  |  | 10/17/25 |  |  |  | 48,250 |
EQT Corp. |  | Pershing LLC |  |  | 40 |  |  | USD | 233,280 |  |  | USD | 60.00 |  |  | 12/19/25 |  |  |  | 20,956 |
Equinox Gold Corp. |  | Pershing LLC |  |  | 480 |  |  | USD | 276,000 |  |  | USD | 7.50 |  |  | 10/17/25 |  |  |  | 10,102 |
Expand Energy Corp. |  | Pershing LLC |  |  | 22 |  |  | USD | 257,268 |  |  | USD | 130.00 |  |  | 09/19/25 |  |  |  | 4,420 |
Expand Energy Corp. |  | Pershing LLC |  |  | 22 |  |  | USD | 257,268 |  |  | USD | 130.00 |  |  | 11/21/25 |  |  |  | 8,666 |
Exxon Mobil Corp. |  | Pershing LLC |  |  | 130 |  |  | USD | 1,401,400 |  |  | USD | 120.00 |  |  | 07/18/25 |  |  |  | 776 |
Exxon Mobil Corp. |  | Pershing LLC |  |  | 133 |  |  | USD | 1,433,740 |  |  | USD | 120.00 |  |  | 09/19/25 |  |  |  | 12,392 |
Exxon Mobil Corp. |  | Pershing LLC |  |  | 120 |  |  | USD | 1,293,600 |  |  | USD | 115.00 |  |  | 11/21/25 |  |  |  | 38,248 |
Exxon Mobil Corp. |  | Pershing LLC |  |  | 62 |  |  | USD | 668,360 |  |  | USD | 110.00 |  |  | 01/16/26 |  |  |  | 39,811 |
FMC Corp. |  | Pershing LLC |  |  | 65 |  |  | USD | 271,375 |  |  | USD | 42.50 |  |  | 10/17/25 |  |  |  | 21,048 |
Franco-Nevada Corp. |  | Pershing LLC |  |  | 48 |  |  | USD | 786,816 |  |  | USD | 130.00 |  |  | 07/18/25 |  |  |  | 165,012 |
Franco-Nevada Corp. |  | Pershing LLC |  |  | 45 |  |  | USD | 737,640 |  |  | USD | 160.00 |  |  | 09/19/25 |  |  |  | 51,019 |
Freeport-McMoRan Inc. |  | Pershing LLC |  |  | 227 |  |  | USD | 984,045 |  |  | USD | 45.00 |  |  | 08/15/25 |  |  |  | 36,302 |
Freeport-McMoRan Inc. |  | Pershing LLC |  |  | 227 |  |  | USD | 984,045 |  |  | USD | 41.00 |  |  | 10/17/25 |  |  |  | 109,628 |
Freeport-McMoRan Inc. |  | Pershing LLC |  |  | 226 |  |  | USD | 979,710 |  |  | USD | 45.00 |  |  | 12/19/25 |  |  |  | 85,388 |
G Mining Ventures Corp. |  | Pershing LLC |  |  | 285 |  |  | CAD | 506,730 |  |  | CAD | 20.00 |  |  | 07/18/25 |  |  |  | 2,012 |
G Mining Ventures Corp. |  | Pershing LLC |  |  | 285 |  |  | CAD | 506,730 |  |  | CAD | 24.00 |  |  | 10/17/25 |  |  |  | 4,315 |
Glencore plc |  | Morgan Stanley |  |  | 36 |  |  | GBP | 102,096 |  |  | GBp | 310.00 |  |  | 09/19/25 |  |  |  | 3,611 |
Gold Fields Ltd., ADR |  | Pershing LLC |  |  | 56 |  |  | USD | 132,552 |  |  | USD | 20.00 |  |  | 07/18/25 |  |  |  | 21,159 |
Gold Fields Ltd., ADR |  | Pershing LLC |  |  | 105 |  |  | USD | 248,535 |  |  | USD | 26.00 |  |  | 09/19/25 |  |  |  | 12,224 |
Gold Fields Ltd., ADR |  | Pershing LLC |  |  | 140 |  |  | USD | 331,380 |  |  | USD | 24.00 |  |  | 11/21/25 |  |  |  | 35,355 |
Halliburton Co. |  | Pershing LLC |  |  | 50 |  |  | USD | 101,900 |  |  | USD | 26.00 |  |  | 08/15/25 |  |  |  | 253 |
Halliburton Co. |  | Pershing LLC |  |  | 52 |  |  | USD | 105,976 |  |  | USD | 26.00 |  |  | 10/17/25 |  |  |  | 1,321 |
Halliburton Co. |  | Pershing LLC |  |  | 60 |  |  | USD | 122,280 |  |  | USD | 26.00 |  |  | 12/19/25 |  |  |  | 3,042 |
Hess Corp. |  | Pershing LLC |  |  | 9 |  |  | USD | 124,686 |  |  | USD | 155.00 |  |  | 08/15/25 |  |  |  | 863 |
Hess Corp. |  | Pershing LLC |  |  | 10 |  |  | USD | 138,540 |  |  | USD | 145.00 |  |  | 10/17/25 |  |  |  | 6,816 |
Hess Corp. |  | Pershing LLC |  |  | 10 |  |  | USD | 138,540 |  |  | USD | 145.00 |  |  | 12/19/25 |  |  |  | 8,555 |
IAMGOLD Corp. |  | Pershing LLC |  |  | 260 |  |  | USD | 191,100 |  |  | USD | 7.00 |  |  | 11/21/25 |  |  |  | 32,490 |
K92 Mining Inc. |  | Morgan Stanley |  |  | 450 |  |  | CAD | 691,200 |  |  | CAD | 12.50 |  |  | 07/18/25 |  |  |  | 94,706 |
K92 Mining Inc. |  | Morgan Stanley |  |  | 542 |  |  | CAD | 832,512 |  |  | CAD | 14.50 |  |  | 10/17/25 |  |  |  | 69,534 |
K92 Mining Inc. |  | Pershing LLC |  |  | 480 |  |  | CAD | 737,280 |  |  | CAD | 19.00 |  |  | 12/19/25 |  |  |  | 15,626 |
Kinder Morgan Inc. |  | Pershing LLC |  |  | 137 |  |  | USD | 402,780 |  |  | USD | 27.50 |  |  | 09/19/25 |  |  |  | 33,481 |
Kinder Morgan Inc. |  | Pershing LLC |  |  | 137 |  |  | USD | 402,780 |  |  | USD | 30.00 |  |  | 11/21/25 |  |  |  | 18,767 |
Kinder Morgan Inc. |  | Pershing LLC |  |  | 132 |  |  | USD | 388,080 |  |  | USD | 30.00 |  |  | 01/16/26 |  |  |  | 22,896 |

See accompanying notes to financial statements.

8

GAMCO Natural Resources, Gold & Income Trust

Schedule of Investments (Continued) — June 30, 2025 (Unaudited)

Description |  | Counterparty |  |  | Number of Contracts |  |  | Notional Amount |  |  | Exercise Price |  |  | Expiration Date |  |  | Market Value |
Kinross Gold Corp. |  | Pershing LLC |  |  | 940 |  |  | USD | 1,469,220 |  |  | USD | 14.00 |  |  | 08/15/25 |  |  | $ | 186,931 |
Kinross Gold Corp. |  | Pershing LLC |  |  | 1,090 |  |  | USD | 1,703,670 |  |  | USD | 17.00 |  |  | 10/17/25 |  |  |  | 105,801 |
Kinross Gold Corp. |  | Pershing LLC |  |  | 915 |  |  | USD | 1,430,145 |  |  | USD | 16.50 |  |  | 12/19/25 |  |  |  | 137,670 |
Lundin Gold Inc. |  | Pershing LLC |  |  | 155 |  |  | CAD | 1,114,450 |  |  | CAD | 41.50 |  |  | 08/15/25 |  |  |  | 349,428 |
Lundin Gold Inc. |  | Pershing LLC |  |  | 170 |  |  | CAD | 1,222,300 |  |  | CAD | 75.00 |  |  | 12/19/25 |  |  |  | 74,582 |
Marathon Petroleum Corp. |  | Pershing LLC |  |  | 19 |  |  | USD | 315,609 |  |  | USD | 155.00 |  |  | 08/15/25 |  |  |  | 28,106 |
Marathon Petroleum Corp. |  | Pershing LLC |  |  | 21 |  |  | USD | 348,831 |  |  | USD | 175.00 |  |  | 10/17/25 |  |  |  | 15,217 |
Marathon Petroleum Corp. |  | Pershing LLC |  |  | 21 |  |  | USD | 348,831 |  |  | USD | 172.00 |  |  | 12/19/25 |  |  |  | 24,196 |
Mowi ASA |  | Morgan Stanley |  |  | 250 |  |  | NOK | 4,865,000 |  |  | NOK | 204.00 |  |  | 08/15/25 |  |  |  | 6,724 |
Mowi ASA |  | Morgan Stanley |  |  | 250 |  |  | NOK | 4,865,000 |  |  | NOK | 200.00 |  |  | 10/17/25 |  |  |  | 17,839 |
Mowi ASA |  | Morgan Stanley |  |  | 130 |  |  | NOK | 2,529,800 |  |  | NOK | 200.00 |  |  | 12/19/25 |  |  |  | 11,646 |
Newmont Corp. |  | Pershing LLC |  |  | 80 |  |  | USD | 466,080 |  |  | USD | 63.00 |  |  | 10/17/25 |  |  |  | 21,553 |
Newmont Corp. |  | Pershing LLC |  |  | 163 |  |  | USD | 949,638 |  |  | USD | 65.00 |  |  | 10/17/25 |  |  |  | 34,882 |
Newmont Corp. |  | Pershing LLC |  |  | 261 |  |  | USD | 1,520,586 |  |  | USD | 65.00 |  |  | 11/21/25 |  |  |  | 75,230 |
Newmont Corp. |  | Pershing LLC |  |  | 275 |  |  | USD | 1,602,150 |  |  | USD | 65.00 |  |  | 12/19/25 |  |  |  | 88,973 |
Nutrien Ltd. |  | Pershing LLC |  |  | 180 |  |  | USD | 1,048,320 |  |  | USD | 60.00 |  |  | 07/18/25 |  |  |  | 9,166 |
Nutrien Ltd. |  | Pershing LLC |  |  | 130 |  |  | USD | 757,120 |  |  | USD | 62.50 |  |  | 09/19/25 |  |  |  | 18,228 |
Nutrien Ltd. |  | Pershing LLC |  |  | 154 |  |  | USD | 896,896 |  |  | USD | 61.00 |  |  | 10/17/25 |  |  |  | 33,788 |
Occidental Petroleum Corp. |  | Pershing LLC |  |  | 20 |  |  | USD | 84,020 |  |  | USD | 58.00 |  |  | 07/18/25 |  |  |  | 10 |
Occidental Petroleum Corp. |  | Pershing LLC |  |  | 20 |  |  | USD | 84,020 |  |  | USD | 52.50 |  |  | 09/19/25 |  |  |  | 574 |
Occidental Petroleum Corp. |  | Pershing LLC |  |  | 27 |  |  | USD | 113,427 |  |  | USD | 50.00 |  |  | 11/21/25 |  |  |  | 2,902 |
OceanaGold Corp. |  | Pershing LLC |  |  | 323 |  |  | CAD | 453,636 |  |  | CAD | 20.25 |  |  | 10/17/25 |  |  |  | 24,140 |
OceanaGold Corp. |  | Pershing LLC |  |  | 323 |  |  | CAD | 453,636 |  |  | CAD | 21.00 |  |  | 12/19/25 |  |  |  | 29,053 |
ONEOK Inc. |  | Pershing LLC |  |  | 47 |  |  | USD | 383,661 |  |  | USD | 101.50 |  |  | 09/19/25 |  |  |  | 876 |
ONEOK Inc. |  | Pershing LLC |  |  | 30 |  |  | USD | 244,890 |  |  | USD | 95.00 |  |  | 11/21/25 |  |  |  | 3,808 |
ONEOK Inc. |  | Pershing LLC |  |  | 38 |  |  | USD | 310,194 |  |  | USD | 90.00 |  |  | 01/16/26 |  |  |  | 12,853 |
Orla Mining Ltd. |  | Pershing LLC |  |  | 333 |  |  | USD | 333,666 |  |  | USD | 11.50 |  |  | 10/17/25 |  |  |  | 21,843 |
Orla Mining Ltd. |  | Pershing LLC |  |  | 295 |  |  | USD | 295,590 |  |  | USD | 12.50 |  |  | 12/19/25 |  |  |  | 21,520 |
Pan American Silver Corp. |  | Pershing LLC |  |  | 46 |  |  | USD | 130,640 |  |  | USD | 25.00 |  |  | 08/15/25 |  |  |  | 18,241 |
Pan American Silver Corp. |  | Pershing LLC |  |  | 58 |  |  | USD | 164,720 |  |  | USD | 26.00 |  |  | 08/15/25 |  |  |  | 18,505 |
Pan American Silver Corp. |  | Pershing LLC |  |  | 100 |  |  | USD | 284,000 |  |  | USD | 34.00 |  |  | 10/17/25 |  |  |  | 8,895 |
Pan American Silver Corp. |  | Pershing LLC |  |  | 94 |  |  | USD | 266,960 |  |  | USD | 34.00 |  |  | 12/19/25 |  |  |  | 14,524 |
Phillips 66 |  | Pershing LLC |  |  | 22 |  |  | USD | 262,460 |  |  | USD | 140.00 |  |  | 07/18/25 |  |  |  | 79 |
Phillips 66 |  | Pershing LLC |  |  | 27 |  |  | USD | 322,110 |  |  | USD | 123.00 |  |  | 08/15/25 |  |  |  | 10,018 |
Phillips 66 |  | Pershing LLC |  |  | 25 |  |  | USD | 298,250 |  |  | USD | 130.00 |  |  | 09/19/25 |  |  |  | 6,459 |
Rio Tinto plc, ADR |  | Pershing LLC |  |  | 155 |  |  | USD | 904,115 |  |  | USD | 63.00 |  |  | 09/19/25 |  |  |  | 9,723 |
Rio Tinto plc, ADR |  | Pershing LLC |  |  | 150 |  |  | USD | 874,950 |  |  | USD | 65.00 |  |  | 10/17/25 |  |  |  | 9,289 |
Rio Tinto plc, ADR |  | Pershing LLC |  |  | 158 |  |  | USD | 921,614 |  |  | USD | 62.00 |  |  | 12/19/25 |  |  |  | 31,957 |
Royal Gold Inc. |  | Pershing LLC |  |  | 25 |  |  | USD | 444,600 |  |  | USD | 200.00 |  |  | 09/19/25 |  |  |  | 8,071 |
Schlumberger NV |  | Pershing LLC |  |  | 84 |  |  | USD | 283,920 |  |  | USD | 45.00 |  |  | 07/18/25 |  |  |  | 1 |
Schlumberger NV |  | Pershing LLC |  |  | 85 |  |  | USD | 287,300 |  |  | USD | 41.00 |  |  | 09/19/25 |  |  |  | 2,151 |
Schlumberger NV |  | Pershing LLC |  |  | 79 |  |  | USD | 267,020 |  |  | USD | 42.50 |  |  | 11/21/25 |  |  |  | 3,944 |
Shell plc, ADR |  | Pershing LLC |  |  | 90 |  |  | USD | 633,690 |  |  | USD | 70.00 |  |  | 10/17/25 |  |  |  | 29,941 |
Shell plc, ADR |  | Pershing LLC |  |  | 31 |  |  | USD | 218,271 |  |  | USD | 68.00 |  |  | 11/21/25 |  |  |  | 14,446 |
Shell plc, ADR |  | Pershing LLC |  |  | 71 |  |  | USD | 499,911 |  |  | USD | 70.00 |  |  | 11/21/25 |  |  |  | 25,097 |
Shell plc, ADR |  | Pershing LLC |  |  | 90 |  |  | USD | 633,690 |  |  | USD | 74.00 |  |  | 12/19/25 |  |  |  | 20,315 |
Suncor Energy Inc. |  | Pershing LLC |  |  | 35 |  |  | USD | 131,075 |  |  | USD | 40.00 |  |  | 08/15/25 |  |  |  | 1,869 |
Suncor Energy Inc. |  | Pershing LLC |  |  | 35 |  |  | USD | 131,075 |  |  | USD | 39.00 |  |  | 10/17/25 |  |  |  | 4,977 |
Suncor Energy Inc. |  | Pershing LLC |  |  | 35 |  |  | USD | 131,075 |  |  | USD | 41.50 |  |  | 12/19/25 |  |  |  | 3,693 |
Targa Resources Corp. |  | Pershing LLC |  |  | 13 |  |  | USD | 226,304 |  |  | USD | 200.00 |  |  | 07/18/25 |  |  |  | 133 |
Targa Resources Corp. |  | Pershing LLC |  |  | 16 |  |  | USD | 278,528 |  |  | USD | 177.50 |  |  | 09/19/25 |  |  |  | 15,536 |
Targa Resources Corp. |  | Pershing LLC |  |  | 13 |  |  | USD | 226,304 |  |  | USD | 200.00 |  |  | 11/21/25 |  |  |  | 7,266 |

See accompanying notes to financial statements.

9

GAMCO Natural Resources, Gold & Income Trust

Schedule of Investments (Continued) — June 30, 2025 (Unaudited)

Description |  | Counterparty |  |  | Number of Contracts |  |  | Notional Amount |  |  | Exercise Price |  |  | Expiration Date |  |  | Market Value |
The Mosaic Co. |  | Pershing LLC |  |  | 47 |  |  | USD | 171,456 |  |  | USD | 30.00 |  |  | 07/18/25 |  |  | $ | 30,727 |
The Mosaic Co. |  | Pershing LLC |  |  | 125 |  |  | USD | 456,000 |  |  | USD | 38.00 |  |  | 08/15/25 |  |  |  | 15,408 |
The Mosaic Co. |  | Pershing LLC |  |  | 125 |  |  | USD | 456,000 |  |  | USD | 40.00 |  |  | 09/19/25 |  |  |  | 12,684 |
The Toro Co. |  | Pershing LLC |  |  | 45 |  |  | USD | 318,060 |  |  | USD | 78.00 |  |  | 10/17/25 |  |  |  | 9,039 |
The Toro Co. |  | Pershing LLC |  |  | 45 |  |  | USD | 318,060 |  |  | USD | 80.00 |  |  | 12/19/25 |  |  |  | 11,207 |
The Williams Companies Inc. |  | Pershing LLC |  |  | 66 |  |  | USD | 414,546 |  |  | USD | 56.00 |  |  | 07/18/25 |  |  |  | 46,027 |
The Williams Companies Inc. |  | Pershing LLC |  |  | 80 |  |  | USD | 502,480 |  |  | USD | 61.00 |  |  | 09/19/25 |  |  |  | 31,772 |
The Williams Companies Inc. |  | Pershing LLC |  |  | 78 |  |  | USD | 489,918 |  |  | USD | 60.00 |  |  | 11/21/25 |  |  |  | 45,415 |
TotalEnergies SE, ADR |  | Pershing LLC |  |  | 71 |  |  | USD | 435,869 |  |  | USD | 65.00 |  |  | 08/15/25 |  |  |  | 4,238 |
TotalEnergies SE, ADR |  | Pershing LLC |  |  | 71 |  |  | USD | 435,869 |  |  | USD | 62.00 |  |  | 09/19/25 |  |  |  | 16,855 |
TotalEnergies SE, ADR |  | Pershing LLC |  |  | 66 |  |  | USD | 405,174 |  |  | USD | 66.00 |  |  | 10/17/25 |  |  |  | 6,826 |
Tyson Foods Inc., Cl. A |  | Pershing LLC |  |  | 57 |  |  | USD | 318,858 |  |  | USD | 60.00 |  |  | 07/18/25 |  |  |  | 143 |
Tyson Foods Inc., Cl. A |  | Pershing LLC |  |  | 49 |  |  | USD | 274,106 |  |  | USD | 63.00 |  |  | 07/18/25 |  |  |  | 5 |
Tyson Foods Inc., Cl. A |  | Pershing LLC |  |  | 120 |  |  | USD | 671,280 |  |  | USD | 58.00 |  |  | 08/15/25 |  |  |  | 14,044 |
Tyson Foods Inc., Cl. A |  | Pershing LLC |  |  | 24 |  |  | USD | 134,256 |  |  | USD | 58.00 |  |  | 09/19/25 |  |  |  | 3,519 |
Tyson Foods Inc., Cl. A |  | Pershing LLC |  |  | 106 |  |  | USD | 592,964 |  |  | USD | 60.00 |  |  | 10/17/25 |  |  |  | 11,628 |
Valero Energy Corp. |  | Pershing LLC |  |  | 19 |  |  | USD | 255,398 |  |  | USD | 133.00 |  |  | 09/19/25 |  |  |  | 16,589 |
Valero Energy Corp. |  | Pershing LLC |  |  | 19 |  |  | USD | 255,398 |  |  | USD | 145.00 |  |  | 11/21/25 |  |  |  | 11,511 |
Valero Energy Corp. |  | Pershing LLC |  |  | 20 |  |  | USD | 268,840 |  |  | USD | 155.00 |  |  | 01/16/26 |  |  |  | 10,154 |
Wesdome Gold Mines Ltd. |  | Pershing LLC |  |  | 285 |  |  | CAD | 540,645 |  |  | CAD | 17.00 |  |  | 08/15/25 |  |  |  | 49,527 |
Wesdome Gold Mines Ltd. |  | Pershing LLC |  |  | 340 |  |  | CAD | 644,980 |  |  | CAD | 17.50 |  |  | 09/19/25 |  |  |  | 53,999 |
Wesdome Gold Mines Ltd. |  | Pershing LLC |  |  | 300 |  |  | CAD | 569,100 |  |  | CAD | 19.00 |  |  | 10/17/25 |  |  |  | 30,762 |
Wheaton Precious Metals Corp. |  | Pershing LLC |  |  | 135 |  |  | USD | 1,212,300 |  |  | USD | 82.00 |  |  | 08/15/25 |  |  |  | 127,651 |
Wheaton Precious Metals Corp. |  | Pershing LLC |  |  | 118 |  |  | USD | 1,059,640 |  |  | USD | 92.50 |  |  | 10/17/25 |  |  |  | 64,092 |
Wheaton Precious Metals Corp. |  | Pershing LLC |  |  | 131 |  |  | USD | 1,176,380 |  |  | USD | 95.00 |  |  | 12/19/25 |  |  |  | 82,770 |
Zoetis Inc. |  | Pershing LLC |  |  | 61 |  |  | USD | 951,295 |  |  | USD | 177.00 |  |  | 07/18/25 |  |  |  | 275 |
Zoetis Inc. |  | Pershing LLC |  |  | 60 |  |  | USD | 935,700 |  |  | USD | 175.00 |  |  | 11/21/25 |  |  |  | 22,585 |
TOTAL OTC CALL OPTIONS WRITTEN |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ | 5,585,600 |
OTC Put Options Written — (0.1)% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Energy Select Sector SPDR ETF |  | Pershing LLC |  |  | 275 |  |  | USD | 2,332,275 |  |  | USD | 79.00 |  |  | 02/20/26 |  |  | $ | 90,200 |
VanEck Gold Miners ETF |  | Pershing LLC |  |  | 605 |  |  | USD | 3,149,630 |  |  | USD | 40.00 |  |  | 11/21/25 |  |  |  | 25,277 |
VanEck Gold Miners ETF |  | Pershing LLC |  |  | 600 |  |  | USD | 3,123,600 |  |  | USD | 40.00 |  |  | 12/19/25 |  |  |  | 32,287 |
TOTAL OTC PUT OPTIONS WRITTEN |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ | 147,764 |

Description |  |  | Number of Contracts |  |  | Notional Amount |  |  | Exercise Price |  |  | Expiration Date |  |  | Market Value |
Exchange Traded Call Options Written — (0.2)% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Alamos Gold Inc., Cl. A |  |  | 339 |  |  | USD | 900,384 |  |  | USD | 26.00 |  |  | 09/19/25 |  |  | $ | 68,817 |
Alamos Gold Inc., Cl. A |  |  | 188 |  |  | USD | 499,328 |  |  | USD | 32.00 |  |  | 11/21/25 |  |  |  | 18,330 |
Corteva Inc. |  |  | 160 |  |  | USD | 1,192,480 |  |  | USD | 75.00 |  |  | 12/19/25 |  |  |  | 83,200 |
Darling Ingredients Inc. |  |  | 70 |  |  | USD | 265,580 |  |  | USD | 37.50 |  |  | 07/18/25 |  |  |  | 11,550 |
Darling Ingredients Inc. |  |  | 45 |  |  | USD | 170,730 |  |  | USD | 37.50 |  |  | 09/19/25 |  |  |  | 16,650 |
Elanco Animal Health Inc. |  |  | 135 |  |  | USD | 192,780 |  |  | USD | 16.00 |  |  | 10/17/25 |  |  |  | 7,425 |
Franco-Nevada Corp. |  |  | 42 |  |  | USD | 688,464 |  |  | USD | 175.00 |  |  | 11/21/25 |  |  |  | 30,660 |
IAMGOLD Corp. |  |  | 300 |  |  | USD | 220,500 |  |  | USD | 7.00 |  |  | 09/19/25 |  |  |  | 27,000 |
IAMGOLD Corp. |  |  | 320 |  |  | USD | 235,200 |  |  | USD | 10.00 |  |  | 01/16/26 |  |  |  | 14,400 |
Zoetis Inc. |  |  | 61 |  |  | USD | 951,295 |  |  | USD | 165.00 |  |  | 09/19/25 |  |  |  | 28,670 |
TOTAL EXCHANGE TRADED CALL OPTIONS WRITTEN |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ | 306,702 |
Exchange Traded Put Options Written — (0.0)% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Energy Select Sector SPDR ETF |  |  | 290 |  |  | USD | 2,459,490 |  |  | USD | 70.00 |  |  | 09/19/25 |  |  | $ | 10,730 |
Energy Select Sector SPDR ETF |  |  | 290 |  |  | USD | 2,459,490 |  |  | USD | 70.00 |  |  | 12/19/25 |  |  |  | 27,550 |

See accompanying notes to financial statements.

10

GAMCO Natural Resources, Gold & Income Trust

Schedule of Investments (Continued) — June 30, 2025 (Unaudited)

Description |  |  | Number of Contracts |  |  | Notional Amount |  |  | Exercise Price |  |  | Expiration Date |  |  | Market Value |
VanEck Gold Miners ETF |  |  | 546 |  |  | USD | 2,842,476 |  |  | USD | 44.00 |  |  | 09/19/25 |  |  | $ | 26,208 |
TOTAL EXCHANGE TRADED PUT OPTIONS WRITTEN |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ | 64,488 |
TOTAL OPTIONS WRITTEN |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ | 6,104,554 |

See accompanying notes to financial statements.

11

GAMCO Natural Resources, Gold & Income Trust

Statement of Assets and Liabilities

June 30, 2025 (Unaudited)

Assets: |  |  |
Investments in securities, at value (cost $147,508,095) |  | $ | 146,987,422 |
Foreign currency, at value (cost $3,713) |  |  | 3,736 |
Deposit at brokers |  |  | 2,411,539 |
Receivable for investments in securities sold |  |  | 660,158 |
Dividends and interest receivable |  |  | 262,247 |
Deferred offering expense |  |  | 58,743 |
Prepaid expenses |  |  | 2,184 |
Total Assets |  |  | 150,386,029 |
Liabilities: |  |  |  |
Options written, at value (premiums received $5,140,089) |  |  | 6,104,554 |
Payable to bank |  |  | 183,990 |
Distributions payable |  |  | 21,675 |
Payable for investment securities purchased |  |  | 948,008 |
Payable for investment advisory fees |  |  | 124,197 |
Payable for payroll expenses |  |  | 70,893 |
Payable for accounting fees |  |  | 7,500 |
Other accrued expenses |  |  | 127,531 |
Total Liabilities |  |  | 7,588,348 |
Preferred Shares $0.001 par value, unlimited number of shares authorized: |  |  |  |
Series A Cumulative Preferred Shares (5.200%, $25 liquidation value per share, 1,200,000 shares authorized with 964,960 shares outstanding) |  |  | 24,124,000 |
Series B Cumulative Preferred Shares (Auction Market, $10 liquidation value per share, 1,250,000 shares authorized with 460,000 shares issued and outstanding) |  |  | 4,600,000 |
Total Preferred Shares |  |  | 28,724,000 |
Net Assets Attributable to Common Shareholders |  | $ | 114,073,681 |
Net Assets Attributable to Common Shareholders Consist of: |  |  |  |
Paid-in capital |  | $ | 198,434,515‌ |
Total accumulated loss |  |  | (84,360,834‌ | )
Net Assets |  | $ | 114,073,681‌ |
Net Asset Value per Common Share: |  |  |  |
($114,073,681 ÷ 16,198,039 shares outstanding at $0.001 par value; unlimited number of shares authorized) |  | $ | 7.04‌ |

Statement of Operations

For the Six Months Ended June 30, 2025 (Unaudited)

Investment Income: |  |  |  |
Dividends (net of foreign withholding taxes of $60,483) |  | $ | 1,259,937 |
Interest |  |  | 958,804 |
Total Investment Income |  |  | 2,218,741 |
Expenses: |  |  |  |
Investment advisory fees |  |  | 713,769 |
Payroll expenses |  |  | 65,812 |
Legal and audit fees |  |  | 59,316 |
Shareholder communications expenses |  |  | 50,307 |
Trustees’ fees |  |  | 43,000 |
Shareholder services fees |  |  | 25,605 |
Accounting fees |  |  | 22,500 |
Custodian fees |  |  | 16,335 |
Dividend expense on securities sold short |  |  | 11,205 |
Shelf offering expense |  |  | 8,071 |
Service fees for securities sold short (See Note 2) |  |  | 852 |
Miscellaneous expenses |  |  | 40,059 |
Total Expenses |  |  | 1,056,831 |
Less: |  |  |  |
Expenses paid indirectly by broker (See Note 5) |  |  | (1,599 | )
Net Expenses |  |  | 1,055,232 |
Net Investment Income |  |  | 1,163,509 |
Net Realized and Unrealized Gain/(Loss) on Investments in Securities, Written Options, and Foreign Currency: |  |  |  |
Net realized loss on investments in securities |  |  | (1,141,739 | )
Net realized gain on written options |  |  | 2,735,326 |
Net realized gain on foreign currency transactions |  |  | 11,401 |
Net realized gain on investments in securities, written options, and foreign currency transactions |  |  | 1,604,988 |
Net change in unrealized appreciation/depreciation: |  |  |  |
on investments in securities |  |  | 21,294,810 |
on written options |  |  | (2,586,192 | )
on foreign currency translations |  |  | 2,370 |
Net change in unrealized appreciation/depreciation on investments in securities, written options, and foreign currency translations |  |  | 18,710,988 |
Net Realized and Unrealized Gain/(Loss) on Investments in Securities, Written Options, and Foreign Currency |  |  | 20,315,976 |
Net Increase in Net Assets Resulting from Operations |  |  | 21,479,485 |
Total Distributions to Preferred Shareholders |  |  | (945,381 | )
Net Increase in Net Assets Attributable to Common Shareholders Resulting from Operations |  | $ | 20,534,104 |

See accompanying notes to financial statements.

12

GAMCO Natural Resources, Gold & Income Trust

Statement of Changes in Net Assets Attributable to Common Shareholders

|  | Six Months Ended June 30, 2025 (Unaudited) |  |  | Year Ended December 31, 2024 |
Operations: |  |  |  |  |  |  |  |
Net investment income |  | $ | 1,163,509 |  |  | $ | 2,612,487 |
Net realized gain on investments in securities, written options, and foreign currency transactions |  |  | 1,604,988 |  |  |  | 5,984,420 |
Net change in unrealized appreciation/depreciation on investments in securities, written options, and foreign currency translations |  |  | 18,710,988 |  |  |  | (3,340,134 | )
Net Increase in Net Assets Resulting from Operations |  |  | 21,479,485 |  |  |  | 5,256,773 |
Distributions to Preferred Shareholders |  |  | (945,381 | )* |  |  | (1,843,402 | )
Net Increase in Net Assets Attributable to Common Shareholders Resulting from Operations |  |  | 20,534,104 |  |  |  | 3,413,371 |
Distributions to Common Shareholders: |  |  |  |  |  |  |  |
Accumulated earnings |  |  | (3,887,529 | )* |  |  | (1,231,969 | )
Return of capital |  |  | — |  |  |  | (5,113,257 | )
Total Distributions to Common Shareholders |  |  | (3,887,529 | ) |  |  | (6,345,226 | )
Fund Share Transactions: |  |  |  |  |  |  |  |
Net decrease from repurchase of common shares and transaction fees |  |  | — |  |  |  | (1,571,404 | )
Net increase in net assets from repurchase of preferred shares |  |  | 33,498 |  |  |  | 268,457 |
Net Increase/(Decrease) in Net Assets from Fund Share Transactions |  |  | 33,498 |  |  |  | (1,302,947 | )
Net Increase/(Decrease) in Net Assets Attributable to Common Shareholders |  |  | 16,680,073 |  |  |  | (4,234,802 | )
Net Assets Attributable to Common Shareholders: |  |  |  |  |  |  |  |
Beginning of year |  |  | 97,393,608 |  |  |  | 101,628,410 |
End of period |  | $ | 114,073,681 |  |  | $ | 97,393,608 |

| * | Based on year to date book income. Amounts are subject to change and recharacterization at year end.

See accompanying notes to financial statements.

13

GAMCO Natural Resources, Gold & Income Trust

Financial Highlights

Selected data for a common share of beneficial interest outstanding throughout each period:

|  | Six Months Ended June 30, 2025 |  |  | Year Ended December 31, |
|  | (Unaudited) |  |  | 2024 |  |  | 2023 |  |  | 2022 |  |  | 2021 |  |  | 2020 |
Operating Performance: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net asset value, beginning of year |  | $ | 6.01 |  |  | $ | 6.16 |  |  | $ | 5.95 |  |  | $ | 6.03 |  |  | $ | 5.93 |  |  | $ | 6.16 |
Net investment income |  |  | 0.07 |  |  |  | 0.16 |  |  |  | 0.13 |  |  |  | 0.09 |  |  |  | 0.08 |  |  |  | 0.02 |
Net realized and unrealized gain on investments and foreign currency transactions |  |  | 1.25 |  |  |  | 0.16 |  |  |  | 0.43 |  |  |  | 0.22 |  |  |  | 0.46 |  |  |  | 0.26 |
Total from investment operations |  |  | 1.32 |  |  |  | 0.32 |  |  |  | 0.56 |  |  |  | 0.31 |  |  |  | 0.54 |  |  |  | 0.28 |
Distributions to Preferred Shareholders: (a) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net investment income |  |  | (0.01 | )* |  |  | (0.11 | ) |  |  | (0.09 | ) |  |  | (0.08 | ) |  |  | (0.08 | ) |  |  | (0.05 | )
Net realized gain |  |  | (0.04 | )* |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Return of capital |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (0.00 | )(b) |  |  | (0.02 | )
Total distributions to preferred shareholders |  |  | (0.05 | ) |  |  | (0.11 | ) |  |  | (0.09 | ) |  |  | (0.08 | ) |  |  | (0.08 | ) |  |  | (0.07 | )
Net Increase in Net Assets Attributable to Common Shareholders Resulting from Operations |  |  | 1.27 |  |  |  | 0.21 |  |  |  | 0.47 |  |  |  | 0.23 |  |  |  | 0.46 |  |  |  | 0.21 |
Distributions to Common Shareholders: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net investment income |  |  | (0.05 | )* |  |  | (0.08 | ) |  |  | (0.05 | ) |  |  | (0.02 | ) |  |  | — |  |  |  | — |
Net realized gain |  |  | (0.19 | )* |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Return of capital |  |  | — |  |  |  | (0.31 | ) |  |  | (0.31 | ) |  |  | (0.34 | ) |  |  | (0.36 | ) |  |  | (0.48 | )
Total distributions to common shareholders |  |  | (0.24 | ) |  |  | (0.39 | ) |  |  | (0.36 | ) |  |  | (0.36 | ) |  |  | (0.36 | ) |  |  | (0.48 | )
Fund Share Transactions: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Increase in net asset value from repurchase of common shares |  |  | — |  |  |  | 0.01 |  |  |  | 0.08 |  |  |  | 0.04 |  |  |  | 0.03 |  |  |  | 0.04 |
Increase in net asset value from repurchase of preferred shares |  |  | 0.00 | (b) |  |  | 0.02 |  |  |  | 0.02 |  |  |  | 0.00 | (b) |  |  | — |  |  |  | 0.00 | (b)
Total Fund share transactions |  |  | 0.00 | (b) |  |  | 0.03 |  |  |  | 0.10 |  |  |  | 0.04 |  |  |  | 0.03 |  |  |  | 0.04 |
Net Asset Value Attributable to Common Shareholders, End of Period |  | $ | 7.04 |  |  | $ | 6.01 |  |  | $ | 6.16 |  |  | $ | 5.95 |  |  | $ | 6.03 |  |  | $ | 5.93 |
NAV total return † |  |  | 21.42 | % |  |  | 3.87 | % |  |  | 9.84 | % |  |  | 5.01 | % |  |  | 7.94 | % |  |  | 5.22 | %
Market value, end of period |  | $ | 6.29 |  |  | $ | 5.29 |  |  | $ | 5.14 |  |  | $ | 5.12 |  |  | $ | 5.35 |  |  | $ | 5.11 |
Investment total return †† |  |  | 23.71 | % |  |  | 10.46 | % |  |  | 7.72 | % |  |  | 2.90 | % |  |  | 12.01 | % |  |  | (5.56 | )%
Ratios to Average Net Assets and Supplemental Data: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net assets including liquidation value of preferred shares, end of period (in 000’s) |  | $ | 142,798 |  |  | $ | 134,270 |  |  | $ | 128,742 |  |  | $ | 136,594 |  |  | $ | 143,649 |  |  | $ | 146,873 |
Net assets attributable to common shares, end of period (in 000’s) |  | $ | 114,074 |  |  | $ | 97,394 |  |  | $ | 101,628 |  |  | $ | 107,395 |  |  | $ | 114,397 |  |  | $ | 117,620 |
Ratio of net investment income to average net assets attributable to common shares before preferred distributions |  |  | 2.19 | %(c) |  |  | 2.57 | % |  |  | 2.12 | % |  |  | 1.56 | % |  |  | 1.33 | % |  |  | 0.46 | %
Ratio of operating expenses to average net assets attributable to common shares (d)(e)(f) |  |  | 1.98 | %(c) |  |  | 1.98 | % |  |  | 2.12 | % |  |  | 1.87 | % |  |  | 1.80 | % |  |  | 1.94 | %
Portfolio turnover rate |  |  | 50 | % |  |  | 77 | % |  |  | 81 | % |  |  | 121 | % |  |  | 109 | % |  |  | 95 | %

See accompanying notes to financial statements.

14

GAMCO Natural Resources, Gold & Income Trust

Financial Highlights (Continued)

Selected data for a common share of beneficial interest outstanding throughout each period:

|  | Six Months Ended June 30, 2025 |  |  | Year Ended December 31, |
|  | (Unaudited) |  |  | 2024 |  |  | 2023 |  |  | 2022 |  |  | 2021 |  |  | 2020 |
Cumulative Preferred Shares: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
5.200% Series A Preferred |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Liquidation value, end of period (in 000’s) |  | $ | 24,124 |  |  | $ | 24,377 |  |  | $ | 27,113 |  |  | $ | 29,199 |  |  | $ | 29,253 |  |  | $ | 29,253 |
Total shares outstanding (in 000’s) |  |  | 965 |  |  |  | 975 |  |  |  | 1,085 |  |  |  | 1,168 |  |  |  | 1,170 |  |  |  | 1,170 |
Liquidation preference per share |  | $ | 25.00 |  |  | $ | 25.00 |  |  | $ | 25.00 |  |  | $ | 25.00 |  |  | $ | 25.00 |  |  | $ | 25.00 |
Average market value (g) |  | $ | 21.73 |  |  | $ | 22.49 |  |  | $ | 22.83 |  |  | $ | 23.93 |  |  | $ | 25.87 |  |  | $ | 25.44 |
Asset coverage per share (h) |  | $ | 124.28 |  |  | $ | 91.03 |  |  | $ | 118.71 |  |  | $ | 116.95 |  |  | $ | 122.77 |  |  | $ | 125.52 |
5.000% Series B Preferred (i) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Liquidation value, end of period (in 000’s) |  | $ | 4,600 |  |  | $ | 12,500 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Total shares outstanding (in 000’s) |  |  | 460 |  |  |  | 1,250 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Liquidation preference per share |  | $ | 10.00 |  |  | $ | 10.00 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Asset coverage per share (h) |  | $ | 49.71 |  |  | $ | 36.41 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Asset Coverage (j) |  |  | 497 | % |  |  | 364 | % |  |  | 475 | % |  |  | 468 | % |  |  | 491 | % |  |  | 502 | %

† | Based on net asset value per share, adjusted for reinvestment of distributions at the net asset value per share on the ex-dividend dates. Total return for a period of less than one year is not annualized.
†† | Based on market value per share, adjusted for reinvestment of distributions at prices obtained under the Fund’s dividend reinvestment plan. Total return for a period of less than one year is not annualized.
* | Based on year to date book income. Amounts are subject to change and recharacterization at year end.
(a) | Calculated based on average common shares outstanding on the record dates throughout the periods.
(b) | Amount represents less than $0.005 per share.
(c) | Annualized.
(d) | The Fund received credits from a designated broker who agreed to pay certain Fund operating expenses. Had such payments not been made, this expense ratio for the year ended December 31, 2022 would have been 1.88%. For the six months ended June 30, 2025 and the years ended December 31, 2024, 2023, 2021, and 2020, there was no material impact on the expense ratios.
(e) | Ratio of operating expenses to average net assets attributable to common shares excluding interest and dividend expense and service fees on securities sold short for the six months ended June 30, 2025 and the years ended December 31, 2024, 2022, 2021, and 2020 was 1.98%, 1.98%, 1.83%, 1.79%, and 1.88%, respectively, and 1.48%, 1.46%, 1.44%, 1.42%, and 1.50%, including liquidation value of preferred shares. For the year ended December 31, 2023, there was no material impact on the service fees for securities sold short.
(f) | Ratio of operating expenses to average net assets including liquidation value of preferred shares for the six months ended June 30, 2025 and the years ended December 31, 2024, 2023, 2022, 2021, and 2020 would have been 1.48% 1.46%, 1.66%, 1.48%, 1.43%, and 1.55%, respectively.
(g) | Based on weekly prices.
(h) | Asset coverage per share is calculated by combining all series of preferred shares.
(i) | The Series B Preferred was issued February 22, 2024.
(j) | Asset coverage is calculated by combining all series of preferred shares.

See accompanying notes to financial statements.

15

GAMCO Natural Resources, Gold & Income Trust

Notes to Financial Statements (Unaudited)

1. Organization. GAMCO Natural Resources, Gold & Income Trust (the Fund) was organized on June 26, 2008 as a Delaware statutory trust. Although the Fund is registered as a non-diversified fund, it has operated as a diversified fund for over three years. Therefore, the Investment Company Act of 1940, as amended (the 1940 Act) obliges the Fund to continue to operate as a diversified fund unless the Fund obtains shareholder approval to operate as a non-diversified fund. The Fund commenced investment operations on January 27, 2011.

The Fund’s primary investment objective is to provide a high level of current income from interest, dividends, and option premiums. The Fund’s secondary investment objective is to seek capital appreciation consistent with the Fund’s strategy and its primary objective. The Fund will attempt to achieve its objectives, under normal market conditions, by investing at least 80% of its assets in equity securities of companies principally engaged in the natural resources and gold industries. As part of its investment strategy, the Fund intends to generate current income from short term gains through an option strategy of writing (selling) covered call options of the equity securities in its portfolio. The Fund may invest in the securities of companies located anywhere in the world. The Fund may invest a high percentage of its assets in specific sectors of the market in order to achieve a potentially greater investment return. As a result, the Fund may be more susceptible to economic, political, and regulatory developments in a particular sector of the market, positive or negative, and may experience increased volatility to the Fund’s NAV and a magnified effect in its total return.

2. Significant Accounting Policies. As an investment company, the Fund follows the investment company accounting and reporting guidance, which is part of U.S. generally accepted accounting principles (GAAP) that may require the use of management estimates and assumptions in the preparation of its financial statements. The Board of Trustees (the Board) has designated Gabelli Funds, LLC (the Adviser) as the valuation designee under Rule 2a-5. Actual results could differ from those estimates. The following is a summary of significant accounting policies followed by the Fund in the preparation of its financial statements.

Security Valuation. Portfolio securities listed or traded on a nationally recognized securities exchange or traded in the U.S. over-the-counter market for which market quotations are readily available are valued at the last quoted sale price or a market’s official closing price as of the close of business on the day the securities are being valued. If there were no sales that day, the security is valued at the average of the closing bid and asked prices or, if there were no asked prices quoted on that day, then the security is valued at the closing bid price on that day. If no bid or asked prices are quoted on such day, the security is valued at the most recently available price or, if the Board so determines, by such other method as the Board shall determine in good faith to reflect its fair market value. Portfolio securities traded on more than one national securities exchange or market are valued according to the broadest and most representative market, as determined by the Adviser.

Portfolio securities primarily traded on a foreign market are generally valued at the preceding closing values of such securities on the relevant market, but may be fair valued pursuant to procedures established by the Board if market conditions change significantly after the close of the foreign market, but prior to the close of business on the day the securities are being valued. Debt obligations for which market quotations are readily available are valued at the average of the latest bid and asked prices. If there were no asked prices quoted on such day, the securities are valued using the closing bid price, unless the Board determines such amount does not reflect the security’s fair value, in which case these securities will be fair valued as determined by the Board. Certain securities are valued principally using dealer quotations. Futures contracts are valued at the closing settlement price of the exchange or board of trade on which the applicable contract is traded. OTC futures and options on futures for which market quotations are readily available will be valued by quotations received from a pricing

16

GAMCO Natural Resources, Gold & Income Trust

Notes to Financial Statements (Unaudited) (Continued)

service or, if no quotations are available from a pricing service, by quotations obtained from one or more dealers in the instrument in question by the Adviser.

Securities and assets for which market quotations are not readily available are fair valued as determined by the Board. Fair valuation methodologies and procedures may include, but are not limited to: analysis and review of available financial and non-financial information about the company; comparisons with the valuation and changes in valuation of similar securities, including a comparison of foreign securities with the equivalent U.S. dollar value American Depositary Receipt securities at the close of the U.S. exchange; and evaluation of any other information that could be indicative of the value of the security.

The inputs and valuation techniques used to measure fair value of the Fund’s investments are summarized into three levels as described in the hierarchy below:

| ● | Level 1 — unadjusted quoted prices in active markets for identical securities;

| ● | Level 2 — other significant observable inputs (including quoted prices for similar securities, interest rates, prepayment speeds, credit risk, etc.); and

| ● | Level 3 — significant unobservable inputs (including the Board’s determinations as to the fair value of investments).

A financial instrument’s level within the fair value hierarchy is based on the lowest level of any input both individually and in the aggregate that is significant to the fair value measurement. The inputs or methodology used for valuing securities are not necessarily an indication of the risk associated with investing in those securities. The summary of the Fund’s investments in securities and other financial instruments by inputs used to value the Fund’s investments as of June 30, 2025 is as follows:

|  | Valuation Inputs |  |  |  |
|  | Level 1 Quoted Prices |  |  | Level 2 Other Significant Observable Inputs |  |  | Level 3 Significant Unobservable Inputs (a) |  |  | Total Market Value at 06/30/25 |
INVESTMENTS IN SECURITIES: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
ASSETS (Market Value): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common Stocks: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Metals and Mining |  | $ | 62,210,893 |  |  |  | — |  |  | $ | 0 |  |  | $ | 62,210,893 |
Other Industries (b) |  |  | 53,851,047 |  |  |  | — |  |  |  | — |  |  |  | 53,851,047 |
Total Common Stocks |  |  | 116,061,940 |  |  |  | — |  |  |  | 0 |  |  |  | 116,061,940 |
Convertible Corporate Bonds (b) |  |  | — |  |  | $ | 675,000 |  |  |  | — |  |  |  | 675,000 |
Corporate Bonds (b) |  |  | — |  |  |  | 5,920,351 |  |  |  | — |  |  |  | 5,920,351 |
U.S. Government Obligations |  |  | — |  |  |  | 24,330,131 |  |  |  | — |  |  |  | 24,330,131 |
TOTAL INVESTMENTS IN SECURITIES – ASSETS |  | $ | 116,061,940 |  |  | $ | 30,925,482 |  |  | $ | 0 |  |  | $ | 146,987,422 |
INVESTMENTS IN SECURITIES: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
LIABILITIES (Market Value): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity Contracts |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Call Options Written |  |  | (306,702 | ) |  |  | (5,585,600 | ) |  |  | — |  |  |  | (5,892,302 | )
Put Options Written |  |  | (64,488 | ) |  |  | (147,764 | ) |  |  | — |  |  |  | (212,252 | )
TOTAL INVESTMENTS IN SECURITIES - LIABLITIES |  | $ | (371,190 | ) |  | $ | (5,733,364 | ) |  |  | — |  |  | $ | (6,104,554 | )

17

GAMCO Natural Resources, Gold & Income Trust

Notes to Financial Statements (Unaudited) (Continued)

| (a) | The inputs for this security are not readily available and are derived based on the judgment of the Adviser according to procedures approved by the Board.
| (b) | Please refer to the Schedule of Investments (SOI) for the industry classifications of these portfolio holdings.

At June 30, 2025, the total value of Level 3 investments for the Fund was less than 1% of total net assets.

General. The Fund uses recognized industry pricing services – approved by the Board and unaffiliated with the Adviser – to value most of its securities, and uses broker quotes provided by market makers of securities not valued by these and other recognized pricing sources. Several different pricing feeds are received to value domestic equity securities, international equity securities, preferred equity securities, and fixed income securities. The data within these feeds are ultimately sourced from major stock exchanges and trading systems where these securities trade. The prices supplied by external sources are checked by obtaining quotations or actual transaction prices from market participants. If a price obtained from the pricing source is deemed unreliable, prices will be sought from another pricing service or from a broker/dealer that trades that security or similar securities.

Fair Valuation. Fair valued securities may be common or preferred equities, warrants, options, rights, or fixed income obligations. Where appropriate, Level 3 securities are those for which market quotations are not available, such as securities not traded for several days, or for which current bids are not available, or which are restricted as to transfer. When fair valuing a security, factors to consider include recent prices of comparable securities that are publicly traded, reliable prices of securities not publicly traded, the use of valuation models, current analyst reports, valuing the income or cash flow of the issuer, or cost if the preceding factors do not apply. A significant change in the unobservable inputs could result in a lower or higher value in Level 3 securities. The circumstances of Level 3 securities are frequently monitored to determine if fair valuation measures continue to apply.

The Adviser reports quarterly to the Board the results of the application of fair valuation policies and procedures. These may include backtesting the prices realized in subsequent trades of these fair valued securities to fair values previously recognized.

Derivative Financial Instruments. The Fund may engage in various portfolio investment strategies by investing in derivative financial instruments for the purposes of increasing the income of the Fund, hedging against changes in the value of its portfolio securities and in the value of securities it intends to purchase, or hedging against a specific transaction with respect to either the currency in which the transaction is denominated or another currency. Investing in certain derivative financial instruments, including participation in currencies options, futures, or swap markets, entails certain execution, liquidity, hedging, tax, and securities, interest, credit, or currency market risks. Losses may arise if the Adviser’s prediction of movements in the direction of the securities, foreign currency, and interest rate markets is inaccurate. Losses may also arise if the counterparty does not perform its duties under a contract, or, in the event of default, the Fund may be delayed in or prevented from obtaining payments or other contractual remedies owed to it under derivative contracts. The creditworthiness of the counterparties is closely monitored in order to minimize these risks. Participation in derivative transactions involves investment risks, transaction costs, and potential losses to which the Fund would not be subject absent the use of these strategies. The consequences of these risks, transaction costs, and losses may have a negative impact on the Fund’s ability to pay distributions.

Collateral requirements differ by type of derivative. Collateral requirements are set by the broker or exchange clearing house for exchange traded derivatives, while collateral terms are contract specific for derivatives traded

18

GAMCO Natural Resources, Gold & Income Trust

Notes to Financial Statements (Unaudited) (Continued)

over-the-counter. Securities pledged to cover obligations of the Fund under derivative contracts are noted in the Schedule of Investments. Cash collateral, if any, pledged for the same purpose will be reported separately in the Statement of Assets and Liabilities.

The Fund’s policy with respect to offsetting is that, absent an event of default by the counterparty or a termination of the agreement, the master agreement does not result in an offset of reported amounts of financial assets and financial liabilities in the Statement of Assets and Liabilities across transactions between the Fund and the applicable counterparty. Therefore the Fund reflects derivative assets and liabilities any related collateral gross on the statement of assets and liabilities. The enforceability of the right to offset may vary by jurisdiction.

The Fund’s derivative contracts held at June 30, 2025, if any, are not accounted for as hedging instruments under GAAP and are disclosed in the Schedule of Investments together with the related counterparty.

Options. The Fund may purchase or write call or put options on securities or indices for the purpose of increasing the income of the Fund. As a writer of put options, the Fund receives a premium at the outset and then bears the risk of unfavorable changes in the price of the financial instrument underlying the option. The Fund would incur a loss if the price of the underlying financial instrument decreases between the date the option is written and the date on which the option is terminated. The Fund would realize a gain, to the extent of the premium, if the price of the financial instrument increases between those dates.

As a purchaser of put options, the Fund pays a premium for the right to sell to the seller of the put option the underlying security at a specified price. The seller of the put has the obligation to purchase the underlying security upon exercise at the exercise price. If the price of the underlying security declines, the Fund would realize a gain upon sale or exercise. If the price of the underlying security increases or stays the same, the Fund would realize a loss upon sale or at the expiration date, but only to the extent of the premium paid.

If a written call option is exercised, the premium is added to the proceeds from the sale of the underlying security in determining whether there has been a realized gain or loss. If a written put option is exercised, the premium reduces the cost basis of the security. In the case of call options, the exercise prices are referred to as “in-the-money,” “at-the-money,” and “out-of-the-money,” respectively. The Fund may write (a) in-the-money call options when the Adviser expects that the price of the underlying security will remain stable or decline during the option period, (b) at-the-money call options when the Adviser expects that the price of the underlying security will remain stable, decline, or advance moderately during the option period, and (c) out-of-the-money call options when the Adviser expects that the premiums received from writing the call option will be greater than the appreciation in the price of the underlying security above the exercise price. By writing a call option, the Fund limits its opportunity to profit from any increase in the market value of the underlying security above the exercise price of the option. Out-of-the-money, at-the-money, and in-the-money put options (the reverse of call options as to the relation of exercise price to market price) may be utilized in the same market environments that such call options are used in equivalent transactions. Option positions at June 30, 2025 are reflected within the Schedule of Investments.

The Fund’s volume of activity in equity options contracts during the six months ended June 30, 2025 had an average monthly market value of approximately $4,519,554.

19

GAMCO Natural Resources, Gold & Income Trust

Notes to Financial Statements (Unaudited) (Continued)

At June 30, 2025, the Fund’s derivative liabilities (by type) are as follows:

|  | Gross Amounts of Recognized Liabilities Presented in the Statement of Assets and Liabilities |  |  | Gross Amounts Available for Offset in the Statement of Assets and Liabilities |  |  | Net Amounts of Liabilities Presented in the Statement of Assets and Liabilities |
Liabilities |  |  |  |  |  |  |  |  |  |  |  |
OTC Equity Written Options |  | $ | 5,733,364 |  |  |  | — |  |  | $ | 5,733,364 |

The following table presents the Fund’s derivative liabilities by counterparty net of the related collateral segregated by the Fund for the benefit of the counterparty as of June 30, 2025:

|  | Net Amounts Not Offset in the Statement of Assets and Liabilities |
|  | Net Amounts of Liabilities Presented in the Statement of Assets and Liabilities |  |  | Securities Pledged as Collateral |  |  | Cash Collateral Pledged |  |  | Net Amount |
Counterparty |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pershing LLC |  | $ | 5,463,204 |  |  | $ | (5,463,204 | ) |  |  | — |  |  |  | — |
Morgan Stanley |  |  | 270,160 |  |  |  | (270,160 | ) |  |  | — |  |  |  | — |
Total |  | $ | 5,733,364 |  |  | $ | (5,733,364 | ) |  |  | — |  |  |  | — |

As of June 30, 2025, the value of equity options written can be found in the Statement of Assets and Liabilities, under Liabilities, options written, at value. For the six months ended June 30, 2025, the effect of equity options written can be found in the Statement of Operations under Net Realized and Unrealized Gain/(Loss) on Investments, Written Options, and Foreign Currency, within Net realized gain on written options, and Net change in unrealized appreciation/(depreciation) on written options.

Limitations on the Purchase and Sale of Futures Contracts, Certain Options, and Swaps. Subject to the guidelines of the Board, the Fund may engage in “commodity interest” transactions (generally, transactions in futures, certain options, certain currency transactions, and certain types of swaps) only for bona fide hedging or other permissible transactions in accordance with the rules and regulations of the Commodity Futures Trading Commission (CFTC). Pursuant to amendments by the CFTC to Rule 4.5 under the Commodity Exchange Act (CEA), the Adviser has filed a notice of exemption from registration as a “commodity pool operator” with respect to the Fund. The Fund and the Adviser are therefore not subject to registration or regulation as a commodity pool operator under the CEA. In addition, certain trading restrictions are now applicable to the Fund which permit the Fund to engage in commodity interest transactions that include (i) “bona fide hedging” transactions, as that term is defined and interpreted by the CFTC and its staff, without regard to the percentage of the Fund’s assets committed to margin and options premiums and (ii) non-bona fide hedging transactions, provided that the Fund does not enter into such non-bona fide hedging transactions if, immediately thereafter, either (a) the sum of the amount of initial margin deposits on the Fund’s existing futures positions or swaps positions and option or swaption premiums would exceed 5% of the market value of the Fund’s liquidating value, after taking into account unrealized profits and unrealized losses on any such transactions, or (b) the aggregate net notional value of the Fund’s commodity interest transactions would not exceed 100% of the market value of the Fund’s liquidating value, after taking into account unrealized profits and unrealized losses on any such transactions. Therefore, in order to claim the Rule 4.5 exemption, the Fund is limited in its ability to invest in commodity futures, options, and certain types of swaps (including securities futures, broad based stock index futures, and

20

GAMCO Natural Resources, Gold & Income Trust

Notes to Financial Statements (Unaudited) (Continued)

financial futures contracts). As a result, in the future the Fund will be more limited in its ability to use these instruments than in the past, and these limitations may have a negative impact on the ability of the Adviser to manage the Fund, and on the Fund’s performance.

Securities Sold Short. The Fund may enter into short sale transactions. Short selling involves selling securities that may or may not be owned and, at times, borrowing the same securities for delivery to the purchaser, with an obligation to replace such borrowed securities at a later date. The proceeds received from short sales are recorded as liabilities and the Fund records an unrealized gain or loss to the extent of the difference between the proceeds received and the value of an open short position on the day of determination. The Fund records a realized gain or loss when the short position is closed out. By entering into a short sale, the Fund bears the market risk of an unfavorable change in the price of the security sold short. Dividends on short sales are recorded as an expense by the Fund on the ex-dividend date and interest expense is recorded on the accrual basis. The broker retains collateral for the value of the open positions, which is adjusted periodically as the value of the position fluctuates. For the six months ended June 30, 2025, the Fund incurred $852 in service fees related to its investment positions sold short and held by the broker. These amounts are included in the Statement of Operations under Expenses, Service fees for securities sold short.

Investments in Other Investment Companies. The Fund may invest, from time to time, in shares of other investment companies (or entities that would be considered investment companies but are excluded from the definition pursuant to certain exceptions under the 1940 Act) (the Acquired Funds) in accordance with the 1940 Act and related rules. Shareholders in the Fund would bear the pro rata portion of the periodic expenses of the Acquired Funds in addition to the Fund’s expenses. For the six months ended June 30, 2025, the Fund’s pro rata portion of the periodic expenses charged by the Acquired Funds was less than one basis point.

Foreign Currency Translations. The books and records of the Fund are maintained in U.S. dollars. Foreign currencies, investments, and other assets and liabilities are translated into U.S. dollars at current exchange rates. Purchases and sales of investment securities, income, and expenses are translated at the exchange rate prevailing on the respective dates of such transactions. Unrealized gains and losses that result from changes in foreign exchange rates and/or changes in market prices of securities have been included in unrealized appreciation/depreciation on investments and foreign currency translations. Net realized foreign currency gains and losses resulting from changes in exchange rates include foreign currency gains and losses between trade date and settlement date on investment securities transactions, foreign currency transactions, and the difference between the amounts of interest and dividends recorded on the books of the Fund and the amounts actually received. The portion of foreign currency gains and losses related to fluctuation in exchange rates between the initial purchase trade date and subsequent sale trade date is included in realized gain/(loss) on investments.

Foreign Securities. The Fund may directly purchase securities of foreign issuers. Investing in securities of foreign issuers involves special risks not typically associated with investing in securities of U.S. issuers. The risks include possible revaluation of currencies, the inability to repatriate funds, less complete financial information about companies, and possible future adverse political and economic developments. Moreover, securities of many foreign issuers and their markets may be less liquid and their prices more volatile than securities of comparable U.S. issuers.

Foreign Taxes. The Fund may be subject to foreign taxes on income, gains on investments, or currency repatriation, a portion of which may be recoverable. The Fund will accrue such taxes and recoveries as applicable, based upon its current interpretation of tax rules and regulations that exist in the markets in which it invests.

21

GAMCO Natural Resources, Gold & Income Trust

Notes to Financial Statements (Unaudited) (Continued)

Restricted Securities. The Fund may invest up to 15% of its net assets in securities for which the markets are restricted. Restricted securities include securities whose disposition is subject to substantial legal or contractual restrictions. The sale of restricted securities often requires more time and results in higher brokerage charges or dealer discounts and other selling expenses than the sale of securities eligible for trading on national securities exchanges or in the over-the-counter markets. Restricted securities may sell at a price lower than similar securities that are not subject to restrictions on resale. Securities freely saleable among qualified institutional investors under special rules adopted by the SEC may be treated as liquid if they satisfy liquidity standards established by the Board. The continued liquidity of such securities is not as well assured as that of publicly traded securities, and accordingly the Board will monitor their liquidity. At June 30, 2025, the Fund did not hold any restricted securities.

Securities Transactions and Investment Income. Securities transactions are accounted for on the trade date with realized gain/(loss) on investments determined by using the identified cost method. Interest income (including amortization of premium and accretion of discount) is recorded on an accrual basis. Premiums and discounts on debt securities are amortized using the effective yield to maturity method or amortized to earliest call date, if applicable. Dividend income is recorded on the ex-dividend date, except for certain dividends from foreign securities that are recorded as soon after the ex-dividend date as the Fund becomes aware of such dividends.

Custodian Fee Credits and Interest Expense. When cash balances are maintained in the custody account, the Fund receives credits which are used to offset custodian fees. The gross expenses paid under the custody arrangement are included in custodian fees in the Statement of Operations with the corresponding expense offset, if any, shown as “Custodian fee credits.” When cash balances are overdrawn, the Fund is charged an overdraft fee of 110% of the 90 day U.S. Treasury Bill rate on outstanding balances. This amount, if any, would be included in the Statement of Operations.

Distributions to Shareholders. Distributions to common shareholders are recorded on the ex-dividend date. Distributions to shareholders are based on income and capital gains as determined in accordance with federal income tax regulations, which may differ from income and capital gains as determined under GAAP. These differences are primarily due to differing treatments of income and gains on various investment securities and foreign currency transactions held by the Fund, timing differences, and differing characterizations of distributions made by the Fund. Distributions from net investment income for federal income tax purposes include net realized gains on foreign currency transactions. These book/tax differences are either temporary or permanent in nature. To the extent these differences are permanent, adjustments are made to the appropriate capital accounts in the period when the differences arise. These reclassifications have no impact on the NAV of the Fund.

The Fund declares and pays monthly distributions from net investment income, capital gains, and paid-in capital. The actual source of the distribution is determined after the end of the year. Distributions during the year may be made in excess of required distributions. Distributions sourced from paid-in capital should not be considered as dividend yield or the total return from an investment in the Fund. The Board will continue to monitor the Fund’s distribution level, taking into consideration the Fund’s NAV and the financial market environment. The Fund’s distribution policy is subject to modification by the Board at any time.

Distributions to shareholders of the Fund’s 5.200% Series A Cumulative Preferred Shares (Series A Preferred) and 5.200% Series B Cumulative Preferred Shares (Series B Preferred) are accrued on a daily basis and are determined as described in Note 5.

22

GAMCO Natural Resources, Gold & Income Trust

Notes to Financial Statements (Unaudited) (Continued)

The tax character of distributions paid during the year ended December 31, 2024 was as follows:

|  | Common |  |  | Preferred |
Distributions paid from: |  |  |  |  |  |  |  |
Ordinary income |  | $ | 1,231,969 |  |  | $ | 1,843,402 |
Return of capital |  |  | 5,113,257 |  |  |  | – |
Total distributions paid |  | $ | 6,345,226 |  |  | $ | 1,843,402 |

Provision for Income Taxes. The Fund intends to continue to qualify as a regulated investment company under Subchapter M of the Internal Revenue Code of 1986, as amended (the Code). It is the policy of the Fund to comply with the requirements of the Code applicable to regulated investment companies and to distribute substantially all of its net investment company taxable income and net capital gains. Therefore, no provision for federal income taxes is required.

The Fund is permitted to carry capital losses forward for an unlimited period. Capital losses that are carried forward will retain their character as either short term or long term capital losses. The Fund has a long term capital loss carryforward with no expiration of $74,734,616.

The following summarizes the tax cost of investments, derivatives, and the related net unrealized depreciation at June 30, 2025:

|  | Cost/ (Premiums) |  |  | Gross Unrealized Appreciation |  |  | Gross Unrealized Depreciation |  |  | Net Unrealized Depreciation |
Investments and other derivative instruments |  | $ | 150,289,279 |  |  | $ | 14,418,491 |  |  | $ | (23,824,902 | ) |  | $ | (9,406,411 | )

The Fund is required to evaluate tax positions taken or expected to be taken in the course of preparing the Fund’s tax returns to determine whether the tax positions are “more-likely-than-not” of being sustained by the applicable tax authority. Income tax and related interest and penalties would be recognized by the Fund as tax expense in the Statement of Operations if the tax positions were deemed not to meet the more-likely-than-not threshold. During the six months ended June 30, 2025, the Fund did not incur any income tax, interest, or penalties. As of June 30, 2025, the Adviser has reviewed all open tax years and concluded that there was no impact to the Fund’s net assets or results of operations. The Fund’s federal and state tax returns for the prior three fiscal years remain open, subject to examination. On an ongoing basis, the Adviser will monitor the Fund’s tax positions to determine if adjustments to this conclusion are necessary.

3. Investment Advisory Agreement and Other Transactions. The Fund has entered into an investment advisory agreement (the Advisory Agreement) with the Adviser which provides that the Fund will pay the Adviser a fee, computed weekly and paid monthly, equal on an annual basis to 1.00% of the value of the Fund’s average weekly net assets including the liquidation value of preferred shares. In accordance with the Advisory Agreement, the Adviser provides a continuous investment program for the Fund’s portfolio and oversees the administration of all aspects of the Fund’s business and affairs.

4. Portfolio Securities. Purchases and sales of securities during the six months ended June 30, 2025, other than short term securities and U.S. Government obligations, aggregated $58,572,714 and $56,289,576, respectively.

23

GAMCO Natural Resources, Gold & Income Trust

Notes to Financial Statements (Unaudited) (Continued)

5. Transactions with Affiliates and Other Arrangements. The cost of calculating the Fund’s NAV per share is a Fund expense pursuant to the Advisory Agreement between the Fund and the Adviser. Under the sub-administration agreement with Bank of New York Mellon, the fees paid include the cost of calculating the Fund’s NAV. The Fund reimburses the Adviser for this service. During the six months ended June 30, 2025, the Fund accrued $22,500 in accounting fees in the Statement of Operations.

During the six months ended June 30, 2025, the Fund received credits from a designated broker who agreed to pay certain Fund operating expenses. The amount of such expenses paid through this directed brokerage arrangement during this period was $1,599.

As per the approval of the Board, the Fund compensates officers of the Fund, who are employed by the Fund and are not employed by the Adviser (although the officers may receive incentive based variable compensation from affiliates of the Adviser). During the six months ended June 30, 2025, the Fund accrued $65,812 in Payroll expenses in the Statement of Operations.

The Fund pays retainer and per meeting fees to Independent Trustees and certain Interested Trustees, plus specified amounts to the Lead Trustee, Audit Committee Chairman, and Nominating Committee Chairman. Trustees are also reimbursed for out of pocket expenses incurred in attending meetings. Trustees who are directors or employees of the Adviser or an affiliated company receive no compensation or expense reimbursement from the Fund.

6. Line of Credit. The Fund participates in an unsecured and uncommitted line of credit, which expires on June 25, 2026 and may be renewed annually, of up to $75,000,000 under which it may borrow up to one-third of its net assets from the bank for temporary borrowing purposes. Borrowings under this arrangement bear interest at a floating rate equal to the higher of the Overnight Federal Funds Rate plus 135 basis points or the Overnight Bank Funding Rate plus 135 basis points in effect on that day. This amount, if any, would be included in “Interest expense” in the Statement of Operations.

During the six months ended June 30, 2025, there were no borrowings outstanding under the line of credit.

7. Capital. The Fund is authorized to issue an unlimited number of common shares of beneficial interest (par value $0.001). The Board has authorized the repurchase of its shares in the open market when the shares are trading at a discount of 7.5% or more (or such other percentage as the Board may determine from time to time) from the NAV of the shares. During the six months ended June 30, 2025, the Fund did not repurchase any common shares and during the year ended December 31, 2024, the Fund repurchased and retired 299,183 of its common shares at an investment of $1,571,404 and at an average discount of approximately 14.52%, from its NAV.

Transactions in common shares of beneficial interest for the six months ended June 30, 2025 and the year ended December 31, 2024, respectively, were as follows:

|  | Six Months Ended June 30, 2025 (Unaudited) |  |  | Year Ended December 31, 2024 |
|  | Shares |  |  | Amount |  |  | Shares |  |  | Amount |
Net decrease from repurchase of common shares |  |  | — |  |  | $ | — |  |  |  | (299,183 | ) |  | $ | (1,571,404 | )

24

GAMCO Natural Resources, Gold & Income Trust

Notes to Financial Statements (Unaudited) (Continued)

As of June 30, 2025, the Fund had an effective shelf registration authorizing the issuance of $200 million in common or preferred shares.

The Fund’s Declaration of Trust, as amended, authorizes the issuance of an unlimited number of $0.001 par value Preferred Shares. On October 26, 2017, the Fund issued 1,200,000 shares of 5.20% Series A Cumulative Preferred Shares (Series A Preferred), receiving $28,851,132, after the deduction of offering expenses of $203,868 and underwriting fees of $945,000. The Series A Preferred has a liquidation value of $25 per share and an annual dividend rate of 5.20%. The Board has authorized the repurchase of the Series A Preferred in the open market at prices less than $25 liquidation value per share. During the six months ended June 30, 2025 and the year ended December 31, 2024, the Fund repurchased and retired 10,105 and 109,467 Series A Preferred at investments of $218,527 and $2,468,218 and at average discounts of approximately 13.50% and 9.91% to its liquidation preference. At June 30, 2025, 964,960 Series A Preferred shares were outstanding and accrued dividends amounted to $19,017. On February 22, 2024, the Fund issued 1,250,000 shares of 5.00% Series B Preferred (Series B Preferred), receiving net proceeds of $12,425,000 after the deduction of estimated offering expenses of $75,000. The Series B Preferred has a liquidation value of $10 per share and is puttable in each of the 60-day periods ending June 26, 2025 and March 26, 2026; the Board determined to add March 26, 2026 and March 26, 2027 as additional put dates for the Series B Preferred and owners of Series B Preferred can put their shares in each of the 60-day periods ending on March 26, 2026 and March 26, 2027. On June 26, 2025, 790,000 Series B Preferred were put back to the Fund at the liquidation preference of $10 per share. At June 30, 2025, 460,000 Series B Preferred shares were outstanding and accrued dividends amounted to $2,658.

The Series A Preferred and Series B Preferred are senior to the common shares and result in the financial leveraging of the common shares. Such leveraging tends to magnify both the risks and opportunities to common shareholders. Dividends on the Series A Preferred and Series B Preferred are cumulative. The Fund is required by the 1940 Act and by the Statement of Preferences to meet certain asset coverage tests with respect to the Series A Preferred and Series B Preferred. If the Fund fails to meet these requirements and does not correct such failure, the Fund may be required to redeem, in part or in full, the Series A Preferred and Series B Preferred at the redemption prices of $25 and $10 per share, respectively, plus an amount equal to the accumulated and unpaid dividends whether or not declared on such shares in order to meet the requirements. Additionally, failure to meet the foregoing asset coverage requirements could restrict the Fund’s ability to pay dividends to common shareholders and could lead to sales of portfolio securities at inopportune times. The income received on the Fund’s assets may vary in a manner unrelated to the fixed rate, which could have either a beneficial or detrimental impact on net investment income and gains available to common shareholders.

The holders of Preferred Shares generally are entitled to one vote per share held on each matter submitted to a vote of shareholders of the Fund and will vote together with holders of common shares as a single class. The holders of Preferred Shares voting together as a single class also have the right currently to elect two Trustees and, under certain circumstances, are entitled to elect a majority of the Board of Trustees. In addition, the affirmative vote of a majority of the votes entitled to be cast by holders of all outstanding shares of the Preferred Shares, voting as a single class, will be required to approve any plan of reorganization adversely affecting the Preferred Shares, and the approval of two-thirds of each class, voting separately, of the Fund’s outstanding voting shares must approve the conversion of the Fund from a closed-end to an open-end investment company. The approval of a majority (as defined in the 1940 Act) of the outstanding Preferred Shares and a majority (as defined in the 1940 Act) of the Fund’s outstanding voting securities are required to approve certain other actions, including changes in the Fund’s investment objectives or fundamental investment policies.

25

GAMCO Natural Resources, Gold & Income Trust

Notes to Financial Statements (Unaudited) (Continued)

8. Indemnifications. The Fund enters into contracts that contain a variety of indemnifications. The Fund’s maximum exposure under these arrangements is unknown. However, the Fund has not had prior claims or losses pursuant to these contracts. Management has reviewed the Fund’s existing contracts and expects the risk of loss to be remote.

9. Segment Reporting. The Fund’s Principal Executive Officer and Principal Financial Officer act as the Fund’s chief operating decision maker (CODM), as defined in Topic 280, assessing performance and making decisions about resource allocation. The CODM has determined that the Fund has a single operating segment based on the fact that the CODM monitors the operating results of the Fund as a whole and the Fund’s long-term strategic asset allocation is guided by the Fund’s investment objective and principal investment strategies, and executed by the Fund’s portfolio management team, comprised of investment professionals employed by the Adviser. The financial information provided to and reviewed by the CODM is consistent with that presented in the Fund’s Schedule of Investments, Statements of Operations and Changes in Net Assets and Financial Highlights.

10. Subsequent Events. Management has evaluated the impact on the Fund of all subsequent events occurring through the date the financial statements were issued and has determined that there were no subsequent events requiring recognition or disclosure in the financial statements.

Certifications

The Fund’s Chief Executive Officer has certified to the New York Stock Exchange (NYSE) that, as of May 19, 2025, he was not aware of any violation by the Fund of applicable NYSE corporate governance listing standards. The Fund reports to the SEC on Form N-CSR which contains certifications by the Fund’s principal executive officer and principal financial officer that relate to the Fund’s disclosure in such reports and that are required by Rule 30a-2(a) under the 1940 Act.

Shareholder Meeting – May 12, 2025 – Final Results

The Fund’s Annual Meeting of Shareholders was held on May 12, 2025. At that meeting, common and preferred shareholders, voting together as a single class, re-elected James P. Conn and Vincent D. Enright as Trustees of the Fund, with a total of 10,180,986 votes and 10,179,539 votes in favor of these Trustees, and a total of 2,621,045 votes and 2,622,491 votes withheld for these Trustees, respectively.

Anthony S. Colavita, Frank J. Fahrenkopf, Jr., William F. Heitmann, Michael J. Melarkey, Agnes Mullady, Anthonie C. van Ekris, and Salvatore J. Zizza continue to serve in their capacities as Trustees of the Fund.

We thank you for your participation and appreciate your continued support.

26

GAMCO NATURAL RESOURCES, GOLD & INCOME TRUST

One Corporate Center

Rye, NY 10580-1422

Portfolio Management Team Biographies

Caesar M. P. Bryan joined GAMCO Asset Management in 1994. He is a member of the global investment team of Gabelli Funds, LLC and portfolio manager of several funds within the Fund Complex. Prior to joining Gabelli, Mr. Bryan was a portfolio manager at Lexington Management. He began his investment career at Samuel Montagu Company, the London based merchant bank. Mr. Bryan graduated from the University of Southampton in England with a Bachelor of Law and is a member of the English Bar.

Vincent Hugonnard-Roche joined GAMCO Investors, Inc. in 2000. He is Director of Quantitative Strategies, head of the Gabelli Risk Management Group, serves as a portfolio manager of Gabelli Funds, LLC, and manages several funds within the Fund Complex. He received a Master’s degree in Mathematics of Decision Making from EISITI, France and an MS in Finance from ESSEC, France.

The Net Asset Value per share appears in the Publicly Traded Funds column, under the heading “Specialized Equity Funds,” in Monday’s The Wall Street Journal. It is also listed in Barron’s Mutual Funds/Closed End Funds section under the heading “Specialized Equity Funds.”

The Net Asset Value per share may be obtained each day by calling (914) 921-5070 or visiting www.gabelli.com.

The NASDAQ symbol for the Net Asset Value is “XGNTX.”

Notice is hereby given in accordance with Section 23(c) of the Investment Company Act of 1940, as amended, that the Fund may from time to time purchase its common shares in the open market when the Fund’s shares are trading at a discount of 7.5% or more from the net asset value of the shares. The Fund may also, from time to time, purchase its preferred shares in the open market when the preferred shares are trading at a discount to the liquidation value.

| (b) | Not applicable.

Item 2. Code of Ethics.

Not applicable.

Item 3. Audit Committee Financial Expert.

Not applicable.

Item 4. Principal Accountant Fees and Services.

Not applicable.

Item 5. Audit Committee of Listed Registrants.

Not applicable.

Item 6. Investments.

| (a) | Schedule of Investments in securities of unaffiliated issuers as of the close of the reporting period is included as part of the report to shareholders filed under Item 1(a) of this form.

| (b) | Not applicable.

Item 7. Financial Statements and Financial Highlights for Open-End Management Investment Companies.

| (a) | Not applicable.

| (b) | Not applicable.

Item 8. Changes in and Disagreements with Accountants for Open-End Management Investment Companies.

Not applicable.

Item 9. Proxy Disclosures for Open-End Management Investment Companies.

Not applicable.

Item 10. Remuneration Paid to Directors, Officers, and Others of Open-End Management Investment Companies.

Not applicable.

Item 11. Statement Regarding Basis for Approval of Investment Advisory Contract.

Not applicable.

Item 12. Disclosure of Securities Lending Activities for Closed-End Management Investment Companies.

Not applicable.

Item 13. Portfolio Managers of Closed-End Management Investment Companies.

There has been no change, as of the date of this filing, in any of the portfolio managers identified in response to paragraph (a)(1) of this Item in the registrant’s most recently filed annual report on Form N-CSR.

Item 14. Purchases of Equity Securities by Closed-End Management Investment Company and Affiliated Purchasers.

| (a) | Provide the information specified in the table with respect to any purchase made by or on behalf of the registrant or any “affiliated purchaser” as defined in Rule 10b-18(a)(3) under the Exchange Act (17CFR 240-10b-18(a)(3)), of shares or other units of any class of the registrant’s equity securities that is registered by the registrant pursuant to Section 12 of the Exchange Act (15 U.S.C. 781).

REGISTRANT PURCHASES OF EQUITY SECURITIES

Period | (a) Total Number of Shares (or Units) Purchased | (b) Average Price Paid per Share (or Unit) | (c) Total Number of Shares (or Units) Purchased as Part of Publicly Announced Plans or Programs | (d) Maximum Number (or Approximate Dollar Value) of Shares (or Units) that May Yet Be Purchased Under the Plans or Programs
Month #1 01/01/2025 through 01/31/2025 | Common – N/A Preferred Series A – N/A Preferred Series B – N/A | Common – N/A Preferred Series A – N/A Preferred Series B – N/A | Common – N/A Preferred Series A – N/A Preferred Series B – N/A | Common – 16,198,039 Preferred Series A – 974,009 Preferred Series B – 1,250,000
Month #2 02/01/2025 through 02/28/2025 | Common – N/A Preferred Series A – 3,637 Preferred Series B – N/A | Common – N/A Preferred Series A – $21.75 Preferred Series B – N/A | Common – N/A Preferred Series A – 3,637 Preferred Series B – N/A | Common – 16,198,039 Preferred Series A – 974,009 - 3,637 = 970,372 Preferred Series B – 1,250,000
Month #3 03/01/2025 through 03/31/2025 | Common – N/A Preferred Series A – 2,085 Preferred Series B – N/A | Common – N/A Preferred Series A – $21.72 Preferred Series B – N/A | Common – N/A Preferred Series A – 2,085 Preferred Series B – N/A | Common – 16,198,039 Preferred Series A – 970,372 - 2,085 = 968,287 Preferred Series B – 1,250,000

Month #4 04/01/2025 through 04/30/2025 | Common – N/A Preferred Series A – 2,585 Preferred Series B – N/A | Common – N/A Preferred Series A – $21.42 Preferred Series B – N/A | Common – N/A Preferred Series A – 2,585 Preferred Series B – N/A | Common – 16,198,039 Preferred Series A – 968,287 - 2,535 = 965,752 Preferred Series B – 1,250,000
Month #5 05/01/2025 through 05/31/2025 | Common – N/A Preferred Series A –792 Preferred Series B – N/A | Common – N/A Preferred Series A – $21.42 Preferred Series B – N/A | Common – N/A Preferred Series A – 792 Preferred Series B – N/A | Common – 16,198,039 Preferred Series A – 965,752 - 792 = 964,960 Preferred Series B – 1,250,000
Month #6 06/01/2025 through 06/30/2025 | Common – N/A Preferred Series A – N/A Preferred Series B – N/A | Common – N/A Preferred Series A – N/A Preferred Series B – N/A | Common – N/A Preferred Series A – N/A Preferred Series B – N/A | Common – 16,198,039 Preferred Series A – 964,960 Preferred Series B – 460,000
Total | Common – N/A Preferred Series A – 9,049 Preferred Series B – N/A | Common – N/A Preferred Series A – $21.58 Preferred Series B – N/A | Common – N/A Preferred Series A – 9,049 Preferred Series B – N/A | N/A

Footnote columns (c) and (d) of the table, by disclosing the following information in the aggregate for all plans or programs publicly announced:

| a. | The date each plan or program was announced – The notice of the potential repurchase of common and preferred shares occurs semiannually in the Fund’s shareholder reports in accordance with Section 23(c) of the Investment Company Act of 1940, as amended.

| b. | The dollar amount (or share or unit amount) approved – Any or all common shares outstanding may be repurchased when the Fund’s common shares are trading at a discount of 7.5% or more from the net asset value of the shares. Any or all preferred shares outstanding may be repurchased when the Fund’s preferred shares are trading at a discount to the liquidation preference.

| c. | The expiration date (if any) of each plan or program – The Fund’s repurchase plans are ongoing.

| d. | Each plan or program that has expired during the period covered by the table – The Fund’s repurchase plans are ongoing.

| e. | Each plan or program the registrant has determined to terminate prior to expiration, or under which the registrant does not intend to make further purchases. – The Fund’s repurchase plans are ongoing.

Item 15. Submission of Matters to a Vote of Security Holders.

There have been no material changes to the procedures by which the shareholders may recommend nominees to the registrant’s board of directors, where those changes were implemented after the registrant last provided disclosure in response to the requirements of Item 407(c)(2)(iv) of Regulation S-K (17 CFR 229.407) (as required by Item 22(b)(15) of Schedule 14A (17 CFR 240.14a-101)), or this Item.

Item 16. Controls and Procedures.

| (a) | The registrant’s principal executive and principal financial officers, or persons performing similar functions, have concluded that the registrant’s disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940, as amended (the “1940 Act”) (17 CFR 270.30a-3(c))) are effective, as of a date within 90 days of the filing date of the report that includes the disclosure required by this paragraph, based on their evaluation of these controls and procedures required by Rule 30a-3(b) under the 1940 Act (17 CFR 270.30a-3(b)) and Rules 13a-15(b) or 15d-15(b) under the Securities Exchange Act of 1934, as amended (17 CFR 240.13a-15(b) or 240.15d-15(b)).

| (b) | There were no changes in the registrant’s internal control over financial reporting (as defined in Rule 30a-3(d) under the 1940 Act (17 CFR 270.30a-3(d))) that occurred during the period covered by this report that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting.

Item 17. Disclosure of Securities Lending Activities for Closed-End Management Investment Companies.

| (a) | If the registrant is a closed-end management investment company, provide the following dollar amounts of income and fees/compensation related to the securities lending activities of the registrant during its most recent fiscal year:

| (1) | Gross income from securities lending activities; $0

| (2) | All fees and/or compensation for each of the following securities lending activities and related services: any share of revenue generated by the securities lending program paid to the securities lending agent(s) (“revenue split”); fees paid for cash collateral management services (including fees deducted from a pooled cash collateral reinvestment vehicle) that are not included in the revenue split; administrative fees that are not included in the revenue split; fees for indemnification that are not included in the revenue split; rebates paid to borrowers; and any other fees relating to the securities lending program that are not included in the revenue split, including a description of those other fees; $0

| (3) | The aggregate fees/compensation disclosed pursuant to paragraph (2); $0 and

| (4) | Net income from securities lending activities (i.e., the dollar amount in paragraph (1) minus the dollar amount in paragraph (3)). $0

| (b) | If the registrant is a closed-end management investment company, describe the services provided to the registrant by the securities lending agent in the registrant’s most recent fiscal year. N/A

Item 18. Recovery of Erroneously Awarded Compensation.

Not Applicable.

Item 19. Exhibits.

| (a)(1) |  | Not applicable.

| (a)(2) |  | Not applicable.

| (a)(3) |  | Certifications pursuant to Rule 30a-2(a) under the 1940 Act and Section 302 of the Sarbanes-Oxley Act of 2002 are attached hereto.

| (a)(4) |  | There were no written solicitations to purchase securities under Rule 23c-1 under the Act sent or given during the period covered by the report by or on behalf of the Registrant to 10 or more persons.

| (a)(5) |  | There was no change in the Registrant’s independent public accountant during the period covered by the report.

| (b) |  | Certifications pursuant to Rule 30a-2(b) under the 1940 Act and Section 906 of the Sarbanes-Oxley Act of 2002 are attached hereto.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

(Registrant) | GAMCO Natural Resources, Gold & Income Trust |
By (Signature and Title)* | /s/ John C. Ball |
| John C. Ball, Principal Executive Officer |
Date | September 4, 2025 |

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

By (Signature and Title)* | /s/ John C. Ball |
| John C. Ball, Principal Executive Officer |
Date | September 4, 2025 |

By (Signature and Title)* | /s/ John C. Ball |
| John C. Ball, Principal Financial Officer and Treasurer |
Date | September 4, 2025 |

| * | Print the name and title of each signing officer under his or her signature.