Company: SRV
Filing Date: 2025-01-14
Form Type: 424B2
Source: 0001398344-25-000635
Chunk: 9

Company: NXG Cushing Midstream Energy Fund
Filing Date: 2025-01-14
Form: 424B2
Chunk 9
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 of the accompanying Prospectus, and “Additional Information (Unaudited)—Risks” in the Annual Report and in any of the Fund’s other filings with the SEC incorporated herein by reference for a discussion of factors you should consider carefully before deciding to invest in the Fund’s Common Shares.                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
| Use of Proceeds | The Fund intends to invest the net proceeds of the offering in accordance with its investment objective and policies as stated in the accompanying Prospectus. It is currently anticipated that the Fund will be able to invest substantially all of the net proceeds of the offering in accordance with its investment objective and policies within three months after the completion of the offering. Pending such investment, it is anticipated that the proceeds will be invested in cash, cash equivalents or other securities, including U.S. government securities or high quality, short-term debt securities. The Fund may also use the proceeds for working capital purposes, including the payment of distributions, interest and operating expenses, although the Fund currently has no intent to issue Common Shares primarily for these purposes. |

| S-3 |

<div align='center'>SUMMARY OF FUND EXPENSES</div>

The following table contains information about the
costs and expenses that Common Shareholders will bear directly or indirectly. The table is based on the capital structure of the Fund
as of May 31, 2024 (except as noted below) after giving effect to the anticipated net proceeds of the Common Shares offered by this
Prospectus Supplement and the accompanying Prospectus and assuming the Fund incurs the estimated offering expenses. If the Fund issues
fewer than all of the Common Shares available for sale pursuant to the Distribution Agreement and the net proceeds to the Fund are less,
all other things being equal, the total annual expenses shown would increase. The purpose of the table and the example below is to help
you understand the fees and expenses that you, as a holder of Common Shares, would bear directly or indirectly.

| Shareholder Transaction Expenses                                        |           |
| Sales load (as a percentage of offering price)                          | 1.00%(1)  |
| Offering expenses borne by the Fund (as a percentage of offering price) | 0.19%(2)  |
| Dividend Reinvestment Plan fees (per transaction sales fee)             | $15.00(3) |

| Annual Expenses                        | Percentage of Net Assets         
 Attributable to Common Shares(4) |
| Management fees(5)(6)                  | 1.78%