Company: SRV
Filing Date: 2025-04-10
Form Type: N-2
Source: 0001398344-25-006954
Chunk: 108

Company: NXG Cushing Midstream Energy Fund
Filing Date: 2025-04-10
Form: N-2
Chunk 108
---
 offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof. |

| 6. | Not applicable. |

<div align='center'>C-8</div>

| 7. | Registrant undertakes to send by first class mail or other means designed to ensure equally prompt delivery, within two business days of receipt of a written or oral request, any Statement of Additional Information constituting Part B of this Registration Statement. |

<div align='center'>C-9

SIGNATURES</div>

As required by the Securities
Act of 1933, as amended, and the Investment Company Act of 1940, as amended, this Registrant’s Registration Statement has been
signed on behalf of the Registrant, in the City of Dallas, State of Texas, on the 10th day of April, 2025

| NXG CUSHING® MIDSTREAM ENERGY FUND |                   |                                                |
| By:                                | /s/ John Musgrave |                                                |
|                                    | Name:             | John Musgrave                                  |
|                                    | Title:            | Trustee, Chief Executive Officer and President |

As required by the Securities
Act of 1933, as amended, this Registration Statement has been signed below by the following persons in the capacities set forth below
on the 10th day of April, 2025.

Principal Executive Officer

| /s/ John Musgrave                              |
| John Musgrave                                  |
| Trustee, Chief Executive Officer and President |

Principal Financial Officer

| /s/ Blake Nelson                      |
| Blake Nelson                          |
| Chief Financial Officer and Treasurer |

Trustees

| *              |
| Brian R. Bruce |
| Trustee        |

| *             |
| John H. Alban |
| Trustee       |

| *                 |
| Andrea N. Mullins |
| Trustee           |

| * | Signed by Blake Nelson, an attorney-in-fact, pursuant to a power of attorney filed herewith. |

| By: | /s/ Blake Nelson |
|     | Blake Nelson     |
|     | Attorney-In-Fact |
|     | April 10, 2025   |

<div align='center'>C-10

EXHIBIT INDEX</div>

| (g)(ii) | Fee Waiver Agreement                                     |
| (n)     | Consent of Independent Registered Public Accounting Firm |
| (s)     | Filing Fee Table                                         |
| (t)