Company: SRV
Filing Date: 2025-11-17
Form Type: 424B2
Source: 0001398344-25-021029
Chunk: 13

Company: NXG Cushing Midstream Energy Fund
Filing Date: 2025-11-17
Form: 424B2
Chunk 13
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| S-6 |

| Use of Proceeds | The Fund estimates the net proceeds of the Offer to be approximately $60                                                                   
 million. This figure is based on the Subscription Price per Common Share of $40.24 and assumes all new Common Shares offered are sold      
 and that the estimated Dealer Manager fee of $2,191,189 (or $1.41 per share) and the other expenses related to the Offer, estimated at     
 approximately $517,950, are paid.                                                                                                          
 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 Securities primarily for these purposes.                                                                  |

| S-7 |

<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, 2025 (except as noted below) after giving effect to the Offer, assuming that the Offer is fully subscribed resulting
in the receipt of net proceeds from the Offer of approximately $60 million. If the Fund issues fewer Common Shares in the Offer 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)                          | 3.50%(1)  |
| Offering expenses borne by the Fund (as a percentage of offering price) | 0.21%(2)  |
| Dividend Reinvestment Plan fees (per transaction sales fee)             | $15.00(3) |