Moreover, government regulations, such as the regulation of natural gas transportation and price controls, can affect oil and natural gas prices in the long term.

Lower prices may reduce the amount of oil and natural gas that is economical to produce and reduce distributable income available to Marine. Lower prices may reduce the amount of oil and natural gas that is economical to produce and reduce distributable income available to Marine. As a result, a substantial decline in the production or price of oil and natural gas could result in Marine being unable to make distributions to unitholders in future quarters. The volatility of oil and gas prices reduces the predictability of future cash distributions to unitholders. Substantially all of the oil and natural gas produced from the leases are being sold under short-term or multi-month contracts at market clearing prices or on the spot market.

Marine is unable to acquire royalty interests in any more leases. Marine is unable to acquire royalty interests in any more leases.

Marine’s overriding royalty interests apply only to existing leases and do not apply to new leases that the Interest Owners may acquire. Therefore, the Interest Owners are no longer obligated to assign any interest to Marine out of any lease that they acquire. In addition, Marine is not permitted to carry on any business, including making investments in additional oil and natural gas interests. Marine will continue to be entitled to receive payments on its existing leases, so long as the leases are active properties. Once the leases terminate or expire, any overriding royalties payable to Marine will terminate and Marine will not be able to acquire any additional or replacement royalty interests.

Royalty interests are depleting assets and may deplete faster than expected or in their entirety.

The net proceeds payable to Marine are derived from the sale of depleting assets. Accordingly, the portion of the distributions to unitholders that are attributable to depletion may be considered a return of capital as opposed to a return on investment. Distributions that are considered a return of capital will ultimately diminish the depletion tax benefits available to unitholders, which could reduce the market value of the units over time.

The reduction in proved reserve quantities is a common measure of depletion. The reduction in proved reserve quantities is a common measure of depletion. Future maintenance and development projects on the leases will likely affect the quantity of proved reserves. The timing and size of these projects will depend on the market prices of oil and natural gas. The timing and size of these projects will depend on the market prices of oil and natural gas. If operators of the leases do not implement additional maintenance and development projects, the future rate of production decline of proved reserves may be higher than the rate currently experienced by Marine. Eventually, the properties in the leases will stop producing in commercial quantities, and Marine will cease to be entitled to receive any distributions of net proceeds therefrom.

The spread of a pandemic, such as coronavirus (“COVID-19”) and its variants, and measures taken to mitigate the impact of such a pandemic could have an adverse effect on trust distributions.

The spread of a pandemic such as COVID-19, and the continually changing measures taken to mitigate the impact of such a pandemic, could have an adverse effect on the demand for oil and natural gas and the business and operations of the operators of the properties, which in turn could have an adverse effect on trust distributions. The spread of different variants of the COVID-19, or coronavirus, and the continually changing measures taken to mitigate the impact of the COVID-19 pandemic, could have an adverse effect on the demand for oil and natural gas and the business and operations of the operators of the properties, which in turn could have an adverse effect on trust distributions.

The operators of the oil and natural gas leases are subject to extensive governmental regulation. The operators of the oil and natural gas leases are subject to extensive governmental regulation.

Oil and natural gas operators have been, and in the future will be, affected by Federal, state and local laws and regulations and other political developments, such as price or gathering rate controls, drilling regulations, and environmental protection regulations, including the regulation of hydraulic fracturing. Oil and natural gas operators have been, and in the future will be, affected by Federal, state and local laws and regulations and other political developments, such as price or gathering rate controls, drilling regulations, and environmental protection regulations, including the regulation of hydraulic fracturing. Although Marine is unable to predict changes to existing laws and regulations, such changes could significantly impact Marine’s overriding royalty interests. Although Marine is unable to predict changes to existing laws and regulations, such changes could significantly impact Marine’s overriding royalty interests.

The owner of any properties in the leases may transfer any of the properties to another unrelated third party, which could reduce the amount of royalty payments that are received. The owner of any properties in the leases may transfer any of the properties to another unrelated third party, which could reduce the amount of royalty payments that are received.

The working interest owners may at any time transfer all or part of the property in a lease to another unrelated third party. The working interest owners may at any time transfer all or part of the property in a lease to another unrelated third party. Unitholders are not entitled to vote on any transfer, and Marine will not receive any proceeds of any such transfer. Following any transfer, the lease will continue to be subject to Marine’s royalty interest, but the net proceeds from the transferred property would be calculated separately and paid by the transferee. The transferee would be

responsible for all of the obligations relating to calculating, reporting and paying to Marine its royalty interest on the transferred portion of the lease, and the transferor of the transferred property would have no continuing obligation to Marine for that property. Any such transferee may not be as financially sound as the current working interest owner.

The owner of any properties in the leases may abandon any property, terminating the related royalty interest Marine may hold. The owner of any properties in the leases may abandon any property, terminating the related royalty interest Marine may hold.

The current working interest owners or any transferee may abandon any well or property that is subject to Marine’s royalty interest if it believes that the well or property can no longer produce in commercially economic quantities or for any other reason. The current working interest owners or any transferee may abandon any well or property that is subject to Marine’s royalty interest if it believes that the well or property can no longer produce in commercially economic quantities or for any other reason. This would terminate Marine’s royalty interest relating to the abandoned well or property.

The Trustee, Marine and the Trust’s unitholders do not control the operation or development of the properties in the leases and have little influence over their operation or development.

The Trustee, Marine and the Trust’s unitholders have little, if any, influence or control over the operation or future development of the underlying properties of the leases. The properties underlying the leases are owned by independent working interest owners. The working interest owners manage the underlying properties and handle the receipt and payment of funds relating to the leases and payments to Marine for its royalty interests. The current working interest owners are under no obligation to continue operating the properties. The failure of a working interest owner to conduct its operations, discharge its obligations, cooperate with regulatory agencies or comply with laws, rules and regulations in a proper manner could have an adverse effect on net proceeds payable to Marine. The Trustee, Marine and the Trust’s unitholders do not have the right to replace a working interest owner.

Risks Related to the Units

The market price for the units may not reflect the value of the royalty interests held by Marine.

The public trading price for the units tends to be tied to the recent and expected levels of cash distributions on the units. The amounts available for distribution by Marine vary in response to numerous factors outside of Marine’s control, including prevailing prices for oil and natural gas produced from properties on the leases. The market price of the units is not necessarily indicative of the value that Marine would realize if it sold its interest in the properties on the leases to a third-party buyer and distributed the net proceeds to its unitholders. In addition, the market price of the units is not necessarily reflective of the fact that Marine’s assets are depleting assets, and a portion of each cash distribution paid on the units should be considered by investors as a return of capital, with the remainder being considered as a return on investment. In addition, the market 5 Table of Contents price of the units is not necessarily reflective of the fact that Marine’s assets are depleting assets, and a portion of each cash distribution paid on the units should be considered by investors as a return of capital, with the remainder being considered as a return on investment. There is no guarantee that distributions made to a unitholder over the life of these depleting assets will equal or exceed the purchase price paid by the unitholder for the unit.

In addition, the public stock markets have traditionally experienced price and trading volume volatility. This volatility has had a significant effect on the market prices of securities issued by many companies for reasons that may or may not be related to operating performance. If the public stock markets continue to experience price and trading volume volatility in the future, the market price of the units could be adversely affected.

Our units have been thinly traded and an active trading market for our units may not develop.

The trading volume of our units has historically been low. The trading volume of our units has historically been low. As a result, sales of small amounts of the units in the public market could cause the price of the units to fluctuate greatly, including in a materially adverse manner. In addition, a more active trading market for our units may not develop, or if it does develop, may not continue, and a unitholder may find it difficult to dispose of, or to obtain accurate quotations as to the market value of, our units.

Operating risks for the working interest owners’ interests on the leases can adversely affect distributions. Operating risks for the working interest owners’ interests on the leases can adversely affect distributions.

The occurrence of drilling, production or transportation accidents and other natural disasters on the properties underlying the leases can reduce distributions. The occurrence of drilling, production or transportation accidents and other natural disasters on the properties underlying the leases can reduce distributions. These occurrences include blowouts, cratering, explosions, environmental and hurricane damage that may result in personal injuries, property damage, damage to productive

formations or equipment and environmental damages. Any of these occurrences could have a material adverse effect on the amount of our distributions or the market value of the units. Any of these occurrences could have a material adverse effect on the amount of our distributions or the market value of the units.

Failure to collect royalty payments from working interest owners could adversely affect Marine’s distributions to its unitholders.

A significant portion of Marine’s royalties are attributable to a limited number of working interest owners. For the fiscal year ended June 30, 2024, two working interest owners accounted for 100% of the royalty payments to Marine. For the fiscal year ended June 30, 2022, two working interest owners accounted for 100% of the royalty payments to Marine. Marine does not require working interest owners to pledge collateral or otherwise post security for royalty payments. Marine does not require working interest owners to pledge collateral or otherwise post security for royalty payments. At any time, Marine may encounter collection issues with one or more of the working interest owners, which could result in Marine not receiving payments for some or all of its royalty interests. Any reduction in royalty payments would reduce the distributable income to Marine’s unitholders.

Marine’s royalty interest can be sold and the Trust can be terminated.

The Trust may be terminated and the Trustee may sell Marine’s royalty interests if holders of 80% or more of the units of beneficial interest of the Trust approve the sale and vote to terminate the Trust. The Trust may be terminated and the Trustee may sell Marine’s royalty interests if holders of 80% or more of the units of beneficial interest of the Trust approve the sale and vote to terminate the Trust. Following any such termination and liquidation, the net proceeds of any sale would be distributed to the unitholders and the unitholders would receive no further distributions from the Trust. Any such sale may not be on terms acceptable or favorable to all unitholders.

Important reserve and other information with respect to the particular leases subject to Marine’s royalty interest is unreasonably difficult to obtain. Important reserve and other information with respect to the particular leases subject to Marine’s royalty interest is unreasonably difficult to obtain.

The leasehold working interests that are subject to the rights held by Marine are owned, in most cases, in whole or in part by Arena, or other oil and natural gas exploration and production companies. The leasehold working interests that are subject to the rights held by Marine are owned, in most cases, in whole or in part by Arena, or other oil and natural gas exploration and production companies. Certain information with respect to the particular leases subject to Marine’s interests, including, but not limited to, (i) reserves, (ii) the availability of oil and natural gas, (iii) the average production cost (lifting cost) per unit, (iv) undeveloped acreage and (v) net wells and net acres, lies solely within the knowledge of these working interest owners. Certain information with respect to the particular leases subject to Marine’s interests, including, but not limited to, (i) reserves, (ii) the availability of oil and natural gas, (iii) the average production cost (lifting cost) per unit, (iv) undeveloped acreage and (v) net wells and net acres, lies solely within the knowledge of these working interest owners. Marine does not have access to engineering data regarding these leaseholds and believes that such information would have been compiled principally by or for the working interest owners of these leaseholds and such information is unreasonably difficult for Marine to obtain. Marine does not have access to engineering data regarding these leaseholds and believes that such information would have been compiled principally by or for the working interest owners of these leaseholds and such information is unreasonably difficult for Marine to obtain.

The Trustee may be subject to attempted cybersecurity disruptions from a variety of sources including state-sponsored actors.

The Trustee maintains cybersecurity protocols to secure sensitive, non-public information. If the measures taken to protect against cybersecurity disruptions prove to be insufficient or if proprietary data is otherwise not protected, the Trustee or customers, employees, or third parties could be adversely affected. The Trust is also exposed to potential harm from cybersecurity events that may affect the operations of third-parties, including suppliers, service providers (including providers of cloud-hosting services for our data or applications), and customers. Cybersecurity disruptions could cause harm to people or the environment; damage or destroy assets; compromise business systems; result in proprietary information being altered, lost, or stolen; result in employee, customer, or third-party information being compromised; or otherwise disrupt business operations. The Trust could incur significant costs to remedy the effects of a major cybersecurity disruption in addition to costs in connection with resulting regulatory actions, litigation, or reputational harm. As a result, such costs could decrease the Trust’s distributions to its unitholders.

Terrorism and continued geopolitical hostilities, including the war in Ukraine and the war between Israel and Hamas, could adversely affect Marine’s distributions to its unitholders or the market price of its units.

Terrorist attacks and the threat of terrorist attacks, whether domestic or foreign, as well as military or other actions taken in response to such attacks or threats, could cause instability in the global financial, oil and natural gas markets. Terrorism and other geopolitical hostilities, including the war in Ukraine and the war between Israel and Hamas, could adversely affect the Trust’s distributions to its unitholders or the market price of its units in unpredictable ways, including through the disruption of oil and natural gas supplies and markets, increased volatility in oil and

natural gas prices, or the possibility that the infrastructure on which the operators of the underlying properties rely could be a direct target or an indirect casualty of an act of terror.

Unitholders have limited voting rights. Unitholders have limited voting rights.

Voting rights as a unitholder are more limited than those of stockholders of most public corporations. Voting rights as a unitholder are more limited than those of stockholders of most public corporations. For example, there is no requirement for annual meetings of unitholders or for an annual or other periodic re-election of the Trustee. For example, there is no requirement for annual meetings of unitholders or for an annual or other periodic re-election of the Trustee. Unlike corporations, which are generally governed by boards of directors that are elected by their equity holders, the Trust is administered by a corporate trustee in accordance with the Indenture and other organizational documents. The Trustee has extremely limited discretion in its administration of the Trust.

The limited liability of the unitholders is uncertain. The limited liability of the unitholders is uncertain.

The unitholders are not protected from the liabilities of the Trust to the same extent that a shareholder would be protected from a corporation’s liabilities. The unitholders are not protected from the liabilities of the Trust to the same extent that a shareholder would be protected from a corporation’s liabilities. The structure of the Trust as a trust does not include the interposition of a limited liability entity, such as a corporation or limited partnership, which would provide further limited liability protection to unitholders. While the Trust is liable for any excess liabilities incurred if the Trustee fails to ensure that such liabilities are to be satisfied only out of the Trust’s assets, under the laws of the State of Texas, which are unsettled on this point, a unitholder may be jointly and severally liable for any liability of the Trust if (i) the satisfaction of such liabilities was not contractually limited to the assets of the Trust and (ii) the assets of the Trust and the Trustee are not adequate to satisfy such liability. As a result, unitholders may be exposed to personal liability.

Cash held by the Trustee is not insured by the Federal Deposit Insurance Corporation. Cash held by the Trustee is not insured by the Federal Deposit Insurance Corporation.

Currently, cash held by Marine that is reserved for the payment of accrued liabilities and estimated future expenses and distributions to unitholders is typically held in cash deposits, U.S. Treasury and agency bonds and money market accounts. Marine places such reserve cash with financial institutions that Marine considers credit worthy and limits the amount of credit exposure from any one financial institution. However, none of these accounts are insured by the Federal Deposit Insurance Corporation. In the event that any such financial institution becomes insolvent, Marine may be unable to recover any or all such cash from the insolvent financial institution. Any loss of such cash may have a material adverse effect on Marine’s cash balances and any distributions to unitholders.

Financial information of Marine is not prepared in accordance with generally accepted accounting principles in the United States.

The financial statements of Marine are prepared on a modified cash basis of accounting, which is a comprehensive basis of accounting that differs from generally accepted accounting principles in the United States (“GAAP”). Although the modified cash basis of accounting is permitted for royalty trusts by the U.S. Securities and Exchange Commission (the “SEC”), the financial statements of Marine differ from financial statements prepared in accordance with GAAP because royalty income is recognized in the month it is received rather than in the month of production, expenses are recorded in the month paid rather than in the month incurred and reserves may be established for contingencies that would not be recorded under GAAP.

If Marine becomes subject to the Texas franchise tax, the Trustee may have to withhold amounts from future distributions to pay the tax liability. 7 Table of Contents If Marine becomes subject to the Texas franchise tax, the Trustee may have to withhold amounts from future distributions to pay the tax liability.

The State of Texas imposes a franchise tax that applies to most business entities doing business in Texas. The State of Texas imposes a franchise tax that applies to most business entities doing business in Texas. Trusts, however, other than business trusts (as defined in U.S. Treasury Regulation section 301.7701-4(b)), that meet certain statutory requirements are exempt from the franchise tax as “passive entities.”

The Trustee does not expect that the Trust will be required to pay any amounts under the Texas franchise tax for the 2024 tax year based on the Trustee’s belief that the Trust is exempt from the franchise tax as a passive entity (i.e., the Trust is not a business trust, it receives at least 90% of its federal gross income from certain passive sources, and no more than 10% of its income is derived from an active trade or business). If it is subsequently determined that the Trust is not exempt from the franchise tax, the Trust will be required to reduce distributions by the amount required

to satisfy and pay the Trust’s franchise tax liability for the years for which the applicable statute of limitations has not yet expired. In addition, the Trust would be required to timely pay franchise tax liability due with respect to current and future years in which the Trust fails to qualify for an exemption and has total revenues in excess of the applicable no tax due threshold, which is currently $2,470,000.

If the Trust is exempt from the Texas franchise tax as a passive entity, each unitholder that is subject to the Texas franchise tax as a taxable entity under the Texas Tax Code should generally include its share of the Trust’s revenue in its franchise tax computation. The Texas franchise tax does not apply to natural persons. Each unitholder is urged to consult its own tax advisor regarding its possible Texas franchise tax liability.

Item 1B. Unresolved Staff Comments

Not applicable.