Company: SRV
Filing Date: 2025-11-17
Form Type: 424B2
Source: 0001398344-25-021029
Chunk: 23

Company: NXG Cushing Midstream Energy Fund
Filing Date: 2025-11-17
Form: 424B2
Chunk 23
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 banks, brokers, trustees and other nominee
holders of Rights with the subscription certificates.

The Fund will not offer or sell any Common Shares that
are not subscribed for during the subscription period or pursuant to the over-subscription privilege.

The Fund has been advised that one or more of the officers
or employees of the Investment Adviser may exercise all of the Rights initially issued to them and may request additional Common Shares
pursuant to the over-subscription privilege. An exercise of the over-subscription privilege by such persons will increase their proportionate
voting power and share of the Fund’s assets.

Sale and Transferability of Rights

The Rights will be, subject to notice of issuance,
admitted for trading on the NYSE under the symbol “SRV RT” during the course of the Offer. Trading in the Rights on the NYSE
is expected to be conducted until the close of trading on the NYSE on the last business day prior to the Expiration Date. The Fund will
use its best efforts to ensure that an adequate trading market for the Rights will exist, although there can be no assurance that a market
for the Rights will develop. Assuming a market exists for the Rights, the Rights may be purchased and sold through usual brokerage channels
or sold through the Subscription Agent.

Trading of the Rights on the NYSE will be conducted
on a when-issued basis until and including the date on which the subscription certificates evidencing Rights are mailed to Record Date
Shareholders and thereafter will be conducted on a regular-way basis until and including the last NYSE trading day prior to the completion
of the Subscription Period. The Common Shares are expected to begin trading ex-Rights one Business Day prior to the Record Date.

| S-14 |

Rights that are sold will not confer any right to acquire
any Common Shares pursuant to the over-subscription privilege, if any, and any Record Date Shareholder who sells any Rights (other than
those Rights that cannot be exercised because they represent the right to acquire less than one Common Share) will not be eligible to
participate in the over-subscription privilege, if any.

Sales through the Subscription Agent and the Dealer Manager.Record Date Shareholders who do not wish to exercise any or all of the Rights issued to them pursuant to the Offer may instruct
the Subscription Agent to try to sell any unexercised Rights. Although the Rights are expected to trade on the NYSE through the last business
day prior to the Expiration Date, subscription certificates representing the Rights to be