Company: SRV
Filing Date: 2025-11-17
Form Type: 424B2
Source: 0001398344-25-021029
Chunk: 22

Company: NXG Cushing Midstream Energy Fund
Filing Date: 2025-11-17
Form: 424B2
Chunk 22
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 Agent has received a completed subscription certificate together with payment for the Common Shares
subscribed for, except as provided under “—Notice of Net Asset Value Decline.” The Fund does not have the right to withdraw
the Rights or to cancel the Offer after the Rights have been distributed.

| S-13 |

The NAV per Common Share at the close of business on
November 12, 2025 was $43.05 and the last reported sale price of a Common Share on the NYSE on that day was $42.92, representing a discount
to NAV of 0.30%.

Over-Subscription Privilege

Record Date Shareholders who exercise all the Rights
issued to them (other than those Rights that cannot be exercised because they represent the right to acquire less than one Common Share)
are entitled to subscribe for additional Common Shares that were not subscribed for by other holders of Rights at the same Subscription
Price pursuant to the over-subscription privilege, subject to certain limitations and subject to allotment. If sufficient remaining Common
Shares are available following the primary subscription, all Record Date Shareholders’ over-subscription requests will be honored
in full. Investors who are not Record Date Shareholders, but who otherwise acquire Rights pursuant to the Offer, are not entitled to subscribe
for any Common Shares pursuant to the over-subscription privilege. If sufficient Common Shares are not available to honor all over-subscription
requests, unsubscribed Common Shares will be allocated pro rata among those Record Date Shareholders who over-subscribe based on the number
of Common Shares they owned on the Record Date. The allocation process may involve a series of allocations in order to ensure that the
total number of Common Shares available for over-subscriptions is distributed on a pro rata basis.

Record Date Shareholders who are fully exercising their
Rights during the subscription period should indicate, on the subscription certificate that they submit with respect to the exercise of
the Rights issued to them, how many Common Shares they desire to acquire pursuant to the over-subscription privilege.

Banks, broker-dealers, trustees and other nominee holders
of Rights will be required to certify to the Subscription Agent, before any over-subscription privilege may be exercised with respect
to any particular beneficial owner, as to the aggregate number of Rights exercised during the subscription period and the number of Common
Shares subscribed for pursuant to the over-subscription privilege by such beneficial owner, and that such beneficial owner’s primary
subscription was exercised in full. Nominee holder over-subscription forms will be distributed to