MARPS: Gulf Royalties Sole Source, 100% Dependent on Arena Energy

TL;DR

**MARPS is a ticking time bomb of depleting assets and single-operator risk; avoid unless you're a deep-value contrarian betting on sustained high oil prices until 2041.**

AI Summary

Marine Petroleum Trust (MARPS) is a royalty trust established in 1956, focused on administering and liquidating rights to payments from oil and natural gas leases in the Gulf of America. For the fiscal year ended June 30, 2025, approximately 94% of Marine's royalty revenues were from oil sales, with the remaining 6% from natural gas and natural gas liquids. The Trust's primary revenue source is an overriding royalty interest of three-fourths of 1% of the value at the well of produced minerals. Arena Energy, LP accounted for 100% of royalty revenues in fiscal 2025 and 2024, up from 99% in fiscal 2023, indicating a significant concentration of revenue. The Trust is prohibited from engaging in any business activity or acquiring new leases, meaning its assets are depleting and not being replaced. The term of the Trust is set to expire on June 1, 2041, unless extended by unitholder vote. The aggregate market value of units held by non-affiliates was approximately $7,940,000 as of December 31, 2024, with 2,000,000 units of beneficial interest outstanding as of September 29, 2025.

Why It Matters

Marine Petroleum Trust's complete reliance on depleting oil and gas assets, with no ability to acquire new interests, makes it a pure liquidation play for investors. The 100% revenue concentration from Arena Energy, LP in fiscal 2025 and 2024 introduces significant counterparty risk, as any operational or financial issues with Arena would directly impact MARPS's distributions. This lack of diversification and inability to grow means investors are essentially buying a finite stream of income, making the Trust's expiration in 2041 a critical factor. For employees, there are none, as the Trust is administered by Argent Trust Company, highlighting its passive nature. Customers are not directly impacted, but the broader energy market's price volatility for oil and natural gas directly dictates the Trust's revenue and unitholder distributions.

Risk Assessment

Risk Level: high — The Trust faces high risk due to its inability to acquire new royalty interests, meaning its assets are depleting with no replacement. Furthermore, 100% of its royalty revenues in fiscal years 2025 and 2024 came from Arena Energy, LP, creating extreme concentration risk. Any operational issues, financial distress, or abandonment of leases by Arena Energy, LP would directly and severely impact MARPS's distributions.

Analyst Insight

Investors should approach MARPS with extreme caution, recognizing it as a pure liquidation vehicle with a finite lifespan until June 1, 2041. Given the 100% revenue concentration from Arena Energy, LP, potential investors must conduct thorough due diligence on Arena's financial health and operational stability. This is not a growth investment; it's a bet on consistent oil and gas prices and Arena's performance.

Financial Highlights

debt To Equity

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revenue

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operating Margin

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total Assets

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total Debt

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net Income

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eps

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gross Margin

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cash Position

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revenue Growth

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Revenue Breakdown

Key Numbers

• $7.94M — Aggregate market value of units held by non-affiliates (As of December 31, 2024)
• 2,000,000 — Units of beneficial interest outstanding (As of September 29, 2025)
• 94% — Royalty revenues from oil sales (For fiscal year ended June 30, 2025)
• 6% — Royalty revenues from natural gas and natural gas liquids sales (For fiscal year ended June 30, 2025)
• 100% — Royalty revenue from Arena Energy, LP (For fiscal years 2025 and 2024, indicating high concentration risk)
• 0.75% — Overriding royalty interest (Three-fourths of 1% of the value at the well)
• 2041 — Trust expiration year (Unless extended by unitholder vote, specifically June 1, 2041)
• 87,646 — Gross acres covered by leases (As of the filing date of this 10-K)

Key Players & Entities

• Marine Petroleum Trust (company) — Registrant
• Argent Trust Company (company) — Corporate Trustee since December 30, 2022
• Arena Energy, LP (company) — Sole source of royalty revenue for MARPS in fiscal 2025 and 2024
• Chevron Corporation (company) — Former primary holder of interests, now assignees like Arena Energy
• Gulf Oil Corporation (company) — Original license agreement party with Trust's predecessors
• Equiniti Trust Company LLC (company) — Transfer agent for Marine
• Simmons Bank (company) — Former corporate trustee from February 20, 2018, to December 29, 2022
• U.S. Securities and Exchange Commission (regulator) — Receives Trust's filings
• Gulf of America (location) — Location of oil and natural gas leases

FAQ

Risk Factors

• Revenue Concentration [high — financial]: The Trust's royalty revenues are entirely dependent on Arena Energy, LP, which accounted for 100% of revenues in fiscal years 2025 and 2024. This extreme concentration poses a significant risk if Arena Energy, LP experiences operational issues or changes its production levels.
• Commodity Price Volatility [high — market]: As 94% of revenues are derived from oil, the Trust is highly susceptible to fluctuations in global oil prices. Declines in oil prices directly impact the value of the overriding royalty interest and, consequently, the Trust's distributable income.
• Depleting Asset Base [high — operational]: The Trust is prohibited from acquiring new leases, meaning its revenue-generating assets are finite and will deplete over time. The Trust's term is set to expire on June 1, 2041, indicating a finite lifespan for cash flows.
• Trust Term Expiration [medium — legal]: The Trust's existence is tied to its expiration date of June 1, 2041, unless extended by unitholder vote. Failure to extend the term will result in the cessation of operations and distributions.
• Limited Business Scope [medium — market]: The Trust is restricted from engaging in any business activities beyond administering its existing royalty interests. This lack of diversification limits its ability to adapt to changing market conditions or generate new revenue streams.

Industry Context

The oil and gas royalty trust sector is characterized by its passive investment model, relying on existing production from underlying leases. Companies in this space are typically focused on managing and distributing revenue from finite natural resource assets rather than active exploration or development. The industry is heavily influenced by commodity price volatility and the operational decisions of the entities holding the working interests.

Regulatory Implications

As a royalty trust, MARPS operates under specific regulations governing its structure and activities, primarily focused on the administration of existing royalty interests. The Trust is prohibited from engaging in new business activities, limiting its regulatory exposure but also its growth potential. Compliance with reporting requirements for its royalty income and distributions is crucial.

What Investors Should Do

1. Monitor oil price trends closely.
2. Assess the financial health and operational stability of Arena Energy, LP.
3. Evaluate the likelihood and impact of a Trust term extension.
4. Consider the finite nature of the Trust's assets.

Key Dates

• 1956-01-01: Establishment of Marine Petroleum Trust — Marks the origin of the Trust and its purpose of administering and liquidating oil and gas lease rights.
• 2041-06-01: Scheduled Trust Expiration — This is the current planned termination date, after which distributions will cease unless unitholders vote to extend the Trust's term.
• 2024-12-31: Aggregate Market Value of Units Held by Non-Affiliates — Indicates the market's valuation of the Trust's outstanding units held by the public, valued at $7.94 million.
• 2025-09-29: Units of Beneficial Interest Outstanding — Confirms the total number of units representing ownership in the Trust, totaling 2,000,000.

Glossary

Overriding Royalty Interest

A non-operating interest in oil and gas that is created out of the working interest and is typically limited to a fraction of the production, free of the costs of production. (This is the Trust's primary revenue-generating asset, representing a 0.75% interest in the value of produced minerals.)

Royalty Trust

A type of business structure that holds rights to royalties from the production of natural resources, distributing the income generated to its unitholders. (Defines the fundamental nature of Marine Petroleum Trust, highlighting its passive income generation and asset depletion model.)

Working Interest

The interest in oil and gas that gives the owner the right to explore, develop, and operate wells, and receive a share of the production revenue, while also bearing the costs of exploration and production. (Arena Energy, LP holds the working interest from which Marine Petroleum Trust derives its overriding royalty interest.)

Year-Over-Year Comparison

Information comparing key metrics to the previous year, such as revenue growth, margin changes, and new risks, is not available from the provided text. The 10-K filing details the current fiscal year's performance and risks, but comparative year-over-year data is not explicitly presented in the excerpt.

Key Financial Figures

• $7,940,000 — econd fiscal quarter) was approximately $7,940,000. (For purposes of determination of the

Filing Documents

• marps_10-k_2025-06-30.htm (10-K) — 826KB
• marps-ex31_1.htm (EX-31.1) — 16KB
• marps-ex32_1.htm (EX-32.1) — 9KB
• marps-ex97_1.htm (EX-97.1) — 59KB
• 0001193125-25-222224.txt ( ) — 911KB

Business

Business 1 Item 1A.

Risk Factors

Risk Factors 3 Item 1B. Unresolved Staff Comments 8 Item 1C. Cybersecurity 8 Item 2.

Properties

Properties 9 Item 3.

Legal Proceedings

Legal Proceedings 11 Item 4. Mine Safety Disclosures 11 PART II Item 5. Market for Registrant’s Common Equity, Related Unitholder Matters and Issuer Purchases of Equity Securities 12 Item 6. [Reserved] 12 Item 7. Trustee’s Discussion and Analysis of Financial Condition and Results of Operations 13 Item 7A.

Quantitative and Qualitative Disclosures About Market Risk

Quantitative and Qualitative Disclosures About Market Risk 16 Item 8.

Financial Statements and Supplementary Data

Financial Statements and Supplementary Data 17 Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure 17 Item 9A.

Controls and Procedures

Controls and Procedures 17 Item 9B. Other Information 18 Item 9C. Disclosure Regarding Foreign Jurisdictions That Prevent Inspections 18 PART III Item 10. Directors, Executive Officers and Corporate Governance 19 Item 11.

Executive Compensation

Executive Compensation 19 Item 12.

Security Ownership of Certain Beneficial Owners and Management and Related Unitholder Matters

Security Ownership of Certain Beneficial Owners and Management and Related Unitholder Matters 19 Item 13. Certain Relationships and Related Transactions, and Director Independence 20 Item 14. Principal Accounting Fees and Services 20 PART IV Item 15. Exhibits, Financial Statement Schedules 21 i Table of Contents PA RT I

BU SINESS

ITEM 1. BU SINESS Organization . Marine Petroleum Trust (the “Trust”) is a royalty trust that was created in 1956 under the laws of the State of Texas. Effective December 30, 2022, Argent Trust Company, a Tennessee chartered trust company (the “Trustee”) became corporate trustee of the Trust. The Trust is not permitted to engage in any business activity because it was organized for the sole purpose of providing an efficient, orderly and practical means for the administration and liquidation of rights to payments from certain oil and natural gas leases in the Gulf of America (formerly known as the Gulf of Mexico), pursuant to license agreements and amendments between the Trust’s predecessors and Gulf Oil Corporation (“Gulf”). As a result of various transactions that have occurred since 1956, these interests were largely held by Chevron Corporation (“Chevron”) and are now predominately held by its assignees, including Arena Energy, LP (“Arena,” and collectively with Chevron and its assignees, the “Interest Owners”). The Trust holds title to interests in properties that are situated offshore of Texas. The Trust’s indenture (the “Indenture”) provides that the corporate trustee is to distribute all cash in the Trust, less an amount reserved for the payment of accrued liabilities and estimated future expenses, to unitholders of record on the last business day of February, May, August and November. Payments are to be made on the 28 th day of September, December, March and June of each fiscal year. If the 28 th falls on a Saturday, Sunday or legal holiday, the distribution is payable on the next succeeding business day. The Indenture prohibits the operation of any kind of trade or business by the Trust and also provides that the term of the Trust will expire on June 1, 2041, unless extended by the vote of the holders of a majority of the outstanding units

Ri sk Factors

Item 1A. Ri sk Factors Although various risk factors and specific cautionary statements are described elsewhere in this Annual Report on Form 10-K, the following is a summary of the principal risks that we believe to be most material to the Trust and to an investment in units of the Trust. The following discussion of risks is not exclusive and is designed to highlight what we believe are the material factors to consider when evaluating its business or an investment in units of the Trust. Additional risks and uncertainties not presently known to us or that we currently deem immaterial could also adversely affect the Trust or an investment in units of the Trust. Risks related to the Trust’s Business and its Industry Current and future oil and natural gas prices fluctuate due to a number of uncontrollable factors. Any depression in oil and natural gas prices would result in lower royalty payments to Marine and lower cash distributions to its unitholders. Marine’s quarterly distributions are highly dependent upon the prices realized from the sale of oil and natural gas. Any sustained decline in Marine’s distributable income would cause a decrease in the value of cash distributions to its unitholders and could result in Marine being unable to make a cash distribution to its unitholders in one or more quarters, as well as resulting in a decrease of the market price of the units. Historically, oil and natural gas prices have been volatile and are likely to continue to be volatile in the future due to factors beyond Marine’s control. These factors include, but are not limited to: • political conditions worldwide, and in particular, political disruptions, terrorist activities, wars or other armed conflicts in oil producing regions, including in Eastern Europe and the Middle East; • worldwide economic and geopolitical conditions; • trade barriers and tariffs; • weather conditions; • public heal

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View this 10-K filing on SEC EDGAR