Company: SRV
Filing Date: 2025-11-17
Form Type: 424B2
Source: 0001398344-25-021029
Chunk: 150

Company: NXG Cushing Midstream Energy Fund
Filing Date: 2025-11-17
Form: 424B2
Chunk 150
---
 to meet its financial commitment on the
obligation is extremely strong.

AA An obligation rated
‘AA’ differs from the highest-rated obligations only to a small degree. The obligor’s capacity to meet its financial
commitment on the obligation is very strong.

A An obligation rated
‘A’ is somewhat more susceptible to the adverse effects of changes in circumstances and economic conditions than obligations
in higher-rated categories. However, the obligor’s capacity to meet its financial commitment on the obligation is still strong.

* Plus (+) or minus
(-) The ratings from ‘AA’ to ‘CCC’ may be modified by the addition of a plus (+) or minus (-) sign to show relative
standing within the major rating categories.

<div align='center'>A-1</div>

BBB An obligation
rated ‘BBB’ exhibits adequate protection parameters. However, adverse economic conditions or changing circumstances are more
likely to lead to a weakened capacity of the obligor to meet its financial commitment on the obligation.

BB; B; CCC; CC; and
C Obligations rated ‘BB’, ‘B’, ‘CCC’, ‘CC’, and ‘C’ are regarded as
having significant speculative characteristics. ‘BB’ indicates the least degree of speculation and ‘C’ the highest.
While such obligations will likely have some quality and protective characteristics, these may be outweighed by large uncertainties or
major exposures to adverse conditions.

BB An obligation rated
‘BB’ is less vulnerable to nonpayment than other speculative issues. However, it faces major ongoing uncertainties or exposure
to adverse business, financial, or economic conditions which could lead to the obligor’s inadequate capacity to meet its financial
commitment on the obligation.

B An obligation rated
‘B’ is more vulnerable to nonpayment than obligations rated ‘BB’, but the obligor currently has the capacity to
meet its financial commitment on the obligation. Adverse business, financial, or economic conditions will likely impair the obligor’s
capacity or willingness to meet its financial commitment on the obligation.

CCC An obligation
rated ‘CCC’ is currently vulnerable to nonpayment, and is dependent upon favorable business, financial, and economic conditions
for the obligor to meet its financial commitment on the obligation. In the event of adverse business, financial, or economic conditions,
the obligor is not likely to have the capacity to meet its financial commitment on the obligation.

CC An obligation rated
‘CC’ is currently highly vulnerable to nonpayment.

C A ‘C’