Company: SRV
Filing Date: 2025-11-17
Form Type: 424B2
Source: 0001398344-25-021029
Chunk: 145

Company: NXG Cushing Midstream Energy Fund
Filing Date: 2025-11-17
Form: 424B2
Chunk 145
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 Wisconsin 53212, serves as custodian
for the Fund pursuant to the Custodian Agreement with the Fund (the “Custodian Agreement”). The Custodian and the Administrator
are affiliates of each other. Under the Custodian Agreement, the Custodian will be responsible for, among other things, receipt of and
disbursement of funds from the Fund’s accounts, establishment of segregated accounts as necessary, and transfer, exchange and delivery
of Fund portfolio securities.

Transfer Agent

U.S. Bancorp Global Fund Services,
located at 615 East Michigan Street, Milwaukee, Wisconsin 53202, has entered into a transfer agent servicing agreement with the Fund.
Under this agreement, U.S. Bancorp Global Fund Services serves as the Fund’s transfer agent, registrar and dividend disbursing agent.

<div align='center'>GENERAL
INFORMATION</div>

Additional Information

The Prospectus and this SAI
constitutes part of a Registration Statement filed by the Fund with the SEC under the Securities Act, and the 1940 Act. The Prospectus
and this SAI omit certain of the information contained in the Registration Statement, and reference is hereby made to the Registration
Statement and related exhibits for further information with respect to the Fund and the common shares offered hereby. Any statements contained
in the Prospectus and herein concerning the provisions of any document are not necessarily complete, and, in each instance, reference
is made to the copy of such document filed as an exhibit to the Registration Statement or otherwise filed with the SEC. Each such statement
is qualified in its entirety by such reference. The complete Registration Statement may be obtained from the SEC upon payment of the fee
prescribed by its rules and regulations or free of charge through the SEC’s website (http://www.sec.gov).

Principal Holders

As of the date of this SAI,
to the knowledge of the Fund, no person beneficially owned more than 5% of the voting securities of any class of equity securities of
the Fund, except as follows:

<div align='center'>S-24</div>

| Shareholder Name and Address       |     | Class of      
 Shares        |     | Share    
 Holdings |         |     | Percentage 
 Owned      |       |
| Sit                                
 Investment Associates, Inc (1) Sit 
 Fixed Income Advisors II, LLC 80   
 South Eighth Street, Suite 3300    |     | Common Shares |     |          | 292,675 |     |            | 7.3%  |
|