Company: SRV
Filing Date: 2025-03-10
Form Type: PRE 14A
Source: 0001398344-25-005333
Chunk: 3

Company: NXG Cushing Midstream Energy Fund
Filing Date: 2025-03-10
Form: PRE 14A
Chunk 3
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 “FOR” THE ELECTION OF NOMINEE(S) OF THE BOARD LISTED IN THE ACCOMPANYING JOINT PROXY STATEMENT FOR YOUR FUND AND “FOR” THE APPROVAL OF THE NEW INVESTMENT ADVISORY AGREEMENT FOR YOUR FUND.

The Board has fixed the close
of business on March 18, 2025 as the record date for the determination of shareholders entitled to notice of, and to vote at, the
Annual Meeting. We urge you to mark, sign, date, and mail the enclosed proxy or proxies in the postage-paid envelope provided so your
shares will be represented at the Annual Meeting.

If you owned shares in more than
one Fund as of the close of business on March 18, 2025, you may receive more than one proxy card. Please be certain to sign, date
and return each proxy card you receive from us.

| By order of the Board,                  |
| John Musgrave                           |
| Trustee, CEO and President of each Fund |

Dallas, Texas

[ ], 2025

| IT IS IMPORTANT THAT YOUR SHARES BE REPRESENTED AT THE ANNUAL MEETING                                                                     
 IN PERSON OR BY PROXY. REGARDLESS OF WHETHER YOU PLAN TO ATTEND THE ANNUAL MEETING, PLEASE SIGN, DATE AND RETURN THE ENCLOSED PROXY CARD  
 IN THE ACCOMPANYING POSTAGE-PAID ENVELOPE OR VOTE BY TELEPHONE OR THROUGH THE INTERNET PURSUANT TO THE INSTRUCTIONS ON THE ENCLOSED PROXY 
 CARD.                                                                                                                                     
 IF YOU ATTEND THE ANNUAL MEETING AND WISH TO VOTE IN PERSON, YOU WILL                                                                     
 BE ABLE TO DO SO AND YOUR VOTE AT THE ANNUAL MEETING WILL REVOKE ANY PROXY YOU MAY HAVE SUBMITTED. MERELY ATTENDING THE ANNUAL MEETING,   
 HOWEVER, WILL NOT REVOKE A PREVIOUSLY GIVEN PROXY.                                                                                        
 IF YOU INTEND TO ATTEND THE ANNUAL MEETING IN PERSON AND YOU ARE A RECORD                                                                 
 HOLDER OF A FUND’S SHARES, IN ORDER TO GAIN ADMISSION YOU WILL BE REQUIRED TO SHOW VALID PHOTOGRAPHIC IDENTIFICATION, SUCH AS YOUR        
 DRIVER’S LICENSE. IF YOU INTEND TO ATTEND THE ANNUAL MEETING IN PERSON AND YOU HOLD YOUR SHARES THROUGH A BANK, BROKER OR OTHER           
 CUSTODIAN, IN ORDER TO GAIN ADMISSION YOU WILL BE REQUIRED TO SHOW VALID PHOTOGRAPHIC IDENT