Company: SRV
Filing Date: 2025-03-10
Form Type: PRE 14A
Source: 0001398344-25-005333
Chunk: 56

Company: NXG Cushing Midstream Energy Fund
Filing Date: 2025-03-10
Form: PRE 14A
Chunk 56
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er and the Fund or any extension, renewal or amendment of this Agreement or such other agreement remains in effect,
including any similar agreement with any organization that succeeds to the Investment Adviser’s business as investment adviser.
At such time as such an agreement is no longer be in effect, the Fund will (to the extent that it lawfully can) cease to use such name
or any other name indicating that it is advised by or otherwise connected with the Investment Adviser or any organization that has succeeded
to the Investment Adviser’s business.

| 10 |

20. Counterparts

This Agreement may be executed in one or more counterparts,
each of which will be deemed an original, and all of such counterparts together will constitute one and the same instrument.

IN WITNESS WHEREOF, the parties to this Agreement
have executed and delivered this Agreement as of the date first above written.

| NXG CUSHING MIDSTREAM ENERGY FUND |
| By:                               |
| Name:                             |
| Title:                            |
| CUSHING INVESTMENT MANAGEMENT, LP |
| By:                               |
| Title:                            |
| By:                               |
| Name:                             |
| Title:                            |

| 11 |

ANNEX C

<div align='center'>Form of New Advisory Agreement

NXG

INVESTMENT MANAGEMENT AGREEMENT

ENTERED INTO BETWEEN

NXG NEXTGEN INFRASTRUCTURE INCOME FUND

AND

CUSHING ASSET MANAGEMENT, LP</div>

This Investment Management Agreement (the “Agreement”) is entered
into as of __________, 2025 by and between NXG NextGen Infrastructure Income Fund (the “Fund”), a statutory trust duly organized
and existing under the laws of the State of Delaware, and Cushing Asset Management, LP, a limited partnership duly organized and existing
under the laws of the State of Texas (the “Investment Adviser”).

<div align='center'>RECITALS:</div>

The Fund is a closed-end management investment company registered under
the Investment Company Act of 1940 (the “1940 Act”); and

The Investment Adviser is engaged principally in providing management and
investment advisory services and is registered as an investment adviser under the Investment Advisers Act of 1940 (the “Advisers
Act”); and

The Investment Adviser is willing to provide management and investment
advisory services to the Fund on the terms and conditions set out below;

NOW, THEREFORE, in consideration of the mutual c