# EDGAR Filing Document

**Accession Number:** 0001400897
**File Stem:** 0001398344-26-011123
**Filing Date:** 2026-6
**Character Count:** 4310
**Document Hash:** 98b54f38b9210c3cf14dcfb4e3eb29c5
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001398344-26-011123.hdr.sgml**: 20260622

**ACCESSION NUMBER**: 0001398344-26-011123

**CONFORMED SUBMISSION TYPE**: DEFA14A

**PUBLIC DOCUMENT COUNT**: 2

**FILED AS OF DATE**: 20260622

**DATE AS OF CHANGE**: 20260622

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** NXG NextGen Infrastructure Income Fund
- **CENTRAL INDEX KEY:** 0001506488

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1130

**FILING VALUES:**
- **FORM TYPE:** DEFA14A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 811-22499
- **FILM NUMBER:** 261107938

**BUSINESS ADDRESS:**
- **STREET 1:** 4925 GREENVILLE AVENUE
- **STREET 2:** SUITE 1310
- **CITY:** DALLAS
- **STATE:** TX
- **ZIP:** 75206
- **BUSINESS PHONE:** 214-692-6334

**MAIL ADDRESS:**
- **STREET 1:** 4925 GREENVILLE AVENUE
- **STREET 2:** SUITE 1310
- **CITY:** DALLAS
- **STATE:** TX
- **ZIP:** 75206

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Cushing NextGen Infrastructure Income Fund
- **DATE OF NAME CHANGE:** 20200327

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Cushing Renaissance Fund
- **DATE OF NAME CHANGE:** 20120710

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Cushing MLP Income Fund
- **DATE OF NAME CHANGE:** 20101124
**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** NXG Cushing Midstream Energy Fund
- **CENTRAL INDEX KEY:** 0001400897

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1130

**FILING VALUES:**
- **FORM TYPE:** DEFA14A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 811-22072
- **FILM NUMBER:** 261107939

**BUSINESS ADDRESS:**
- **STREET 1:** 4925 GREENVILLE AVENUE
- **STREET 2:** SUITE 1310
- **CITY:** DALLAS
- **STATE:** TX
- **ZIP:** 75206
- **BUSINESS PHONE:** 214-692-6334

**MAIL ADDRESS:**
- **STREET 1:** 4925 GREENVILLE AVENUE
- **STREET 2:** SUITE 1310
- **CITY:** DALLAS
- **STATE:** TX
- **ZIP:** 75206

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** CUSHING MLP & INFRASTRUCTURE TOTAL RETURN FUND
- **DATE OF NAME CHANGE:** 20180315

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Cushing MLP & Infrastructure Total Return Fund
- **DATE OF NAME CHANGE:** 20180307

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Cushing MLP Total Return Fund
- **DATE OF NAME CHANGE:** 20070524

**UNITED STATES<br> SECURITIES AND EXCHANGE COMMISSION<br> Washington, D.C. 20549**

**SCHEDULE 14A**

**Proxy Statement Pursuant to Section 14(a) of the<br> Securities Exchange Act of 1934**

Filed by the Registrant [X]

Filed by a Party other than the Registrant [ ]

Check the appropriate box:

[ ] Preliminary Proxy Statement

[ ] Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

[ ] Definitive Proxy Statement

[X] Definitive Additional Materials

[ ] Soliciting Material Pursuant to §240.14a-12

**NXG Cushing<sup>®</sup> Midstream Energy Fund<br> NXG NextGen Infrastructure Income Fund**

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if Other than the Registrant)

Payment of Filing Fee (Check the appropriate box):

[X] No fee required. <br> [ ] Fee paid <u>previously</u> with preliminary materials. <br> [ ] Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(4) and 0-11.

![](image_001.jpg)

**PO Box 43131**

**Providence, RI 02940-3131**

**ACTION NEEDED**

We have been trying to get in touch with you regarding an important matter pertaining to your investment in **NXG Cushing Midstream Energy Fund ("SRV") or NXG NextGen Infrastructure Income Fund ("NXG")**

It is critical that we speak to you regarding this matter prior to the adjourned shareholder meeting on **July 10, 2026**. The call will only take a few moments of your time.

Please contact us toll-free at **1 (877) 816-8570** during the following hours of operation:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;· Monday – Friday: 10:00 a.m. to 11:00 p.m. ET

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;· Saturday: 12:00 p.m. to 6:00 p.m. ET

At the time of the call, please use the **Reference Number** listed above.

Thank you in advance for your participation.

This letter was sent by Georgeson LLC, an approved service provider of NXG Investment Management.