SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549


SCHEDULE 13D/A

Under the Securities Exchange Act of 1934

(Amendment No. 8)*


National Energy Services Reunited Corp.
(Name of Issuer)


Ordinary Shares, no par value
(Title of Class of Securities)


G6375R107
(CUSIP Number)


Mubbadrah Investment LLC
Building No. 1/21 Way No. 5001, Near Al Nadha Towers, Ghala,
Muscat, P4, XX
968 24390901
(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)
08/21/2025
(Date of Event Which Requires Filing of This Statement)


If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box. ☐

The information required on the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).




SCHEDULE 13D/A
CUSIP No.
G6375R107


1 Name of reporting person

Mubbadrah Investment LLC
2 Check the appropriate box if a member of a Group (See Instructions)

☐  (a)
☒  (b)
3SEC use only
4 Source of funds (See Instructions)

OO
5 Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

☐
6 Citizenship or place of organization

OMAN
Number of Shares Beneficially Owned by Each Reporting Person With:
7 Sole Voting Power: 0.00
8 Shared Voting Power: 5,146,010.00
9 Sole Dispositive Power: 0.00
10 Shared Dispositive Power: 5,146,010.00
11 Aggregate amount beneficially owned by each reporting person

5,146,010.00
12 Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

☐
13 Percent of class represented by amount in Row (11)

5.1 %
14 Type of Reporting Person (See Instructions)

OO

Comment for Type of Reporting Person: (2) This Schedule 13D is filed by Mubbadrah Investment LLC ("Mubbadrah"), Wild Investment LLC, formerly Wild Holding LLC ("Wild Investment"), Myrad Investment LLC, formerly Myrad Holding LLC ("Myrad Investment"), Yasser Al Barami ("Mr. Al Barami") and Hilal Al Busaidi ("Mr. Al Busaidi" and, together with Mubbadrah, Wild Investment, Myrad Investment, and Mr. Al Barami, the "Reporting Persons"). The Reporting Persons each expressly disclaim status as a group for purposes of this Schedule 13D. (8, 10 and 11) Consists of 5,146,010 ordinary shares, no par value ("Ordinary Shares"), of National Energy Services Reunited Corp. (the "Issuer") held by Mubbadrah. Wild Investment and Myrad Investment each own 50% of Mubbadrah. Mr. Al Barami owns 90% of Wild Investment and Mr. Al Busaidi owns 97.5% of Myrad Investment. By virtue of these relationships, Wild Investment, Myrad Investment, Mr. Al Barami and Al Busaidi may be deemed to share voting and dispositive control over the Ordinary Shares held by Mubbadrah. Each of Wild Investment, Myrad Investment, Mr. Al Barami and Mr. Al Busaidi disclaim beneficial ownership of any Ordinary Shares held or beneficially owned by Mubbadrah, except to the extent of each of their pecuniary interests therein. (13) The percentage is calculated based upon a total of 100,777,759 Ordinary Shares, no par value, of National Energy Services Reunited Corp., outstanding as of September 30, 2025, as reported by the Issuer in its Form 6-K filed with the Securities and Exchange Commission on November 13, 2025, the last public disclosure by the Issuer of the outstanding Ordinary Shares of the Issuer.


SCHEDULE 13D/A
CUSIP No.
G6375R107


1 Name of reporting person

Wild Investment LLC
2 Check the appropriate box if a member of a Group (See Instructions)

☐  (a)
☒  (b)
3SEC use only
4 Source of funds (See Instructions)

OO
5 Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

☐
6 Citizenship or place of organization

OMAN
Number of Shares Beneficially Owned by Each Reporting Person With:
7 Sole Voting Power: 0.00
8 Shared Voting Power: 5,146,010.00
9 Sole Dispositive Power: 0.00
10 Shared Dispositive Power: 5,146,010.00
11 Aggregate amount beneficially owned by each reporting person

5,146,010.00
12 Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

☐
13 Percent of class represented by amount in Row (11)

5.1 %
14 Type of Reporting Person (See Instructions)

OO

Comment for Type of Reporting Person: (8, 10 and 11) Consists of 5,146,010 Ordinary Shares held by Mubbadrah. Wild Investment owns 50% of Mubbadrah. By virtue of this relationship, Wild Investment may be deemed to share voting and dispositive control over the Ordinary Shares held by Mubbadrah. Wild Investment disclaims beneficial ownership of any Ordinary Shares held or beneficially owned by Mubbadrah, except to the extent of its pecuniary interests therein. (13) The percentage is calculated based upon a total of 100,777,759 Ordinary Shares, no par value, of National Energy Services Reunited Corp., outstanding as of September 30, 2025, as reported by the Issuer in its Form 6-K filed with the Securities and Exchange Commission on November 13, 2025, the last public disclosure by the Issuer of the outstanding Ordinary Shares of the Issuer.


SCHEDULE 13D/A
CUSIP No.
G6375R107


1 Name of reporting person

Myrad Investment LLC
2 Check the appropriate box if a member of a Group (See Instructions)

☐  (a)
☒  (b)
3SEC use only
4 Source of funds (See Instructions)

OO
5 Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

☐
6 Citizenship or place of organization

OMAN
Number of Shares Beneficially Owned by Each Reporting Person With:
7 Sole Voting Power: 0.00
8 Shared Voting Power: 5,146,010.00
9 Sole Dispositive Power: 0.00
10 Shared Dispositive Power: 5,146,010.00
11 Aggregate amount beneficially owned by each reporting person

5,146,010.00
12 Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

☐
13 Percent of class represented by amount in Row (11)

5.1 %
14 Type of Reporting Person (See Instructions)

OO

Comment for Type of Reporting Person: (8, 10 and 11) Consists of 5,146,010 Ordinary Shares held by Mubbadrah. Myrad Investment owns 50% of Mubbadrah. By virtue of this relationship, Myrad Investment may be deemed to share voting and dispositive control over the Ordinary Shares held by Mubbadrah. Myrad Investment disclaims beneficial ownership of any Ordinary Shares held or beneficially owned by Mubbadrah, except to the extent of its pecuniary interests therein. (13) The percentage is calculated based upon a total of 100,777,759 Ordinary Shares, no par value, of National Energy Services Reunited Corp., outstanding as of September 30, 2025, as reported by the Issuer in its Form 6-K filed with the Securities and Exchange Commission on November 13, 2025, the last public disclosure by the Issuer of the outstanding Ordinary Shares of the Issuer.


SCHEDULE 13D/A
CUSIP No.
G6375R107


1 Name of reporting person

Yasser Al Barami
2 Check the appropriate box if a member of a Group (See Instructions)

☐  (a)
☒  (b)
3SEC use only
4 Source of funds (See Instructions)

OO
5 Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

☐
6 Citizenship or place of organization

OMAN
Number of Shares Beneficially Owned by Each Reporting Person With:
7 Sole Voting Power: 0.00
8 Shared Voting Power: 5,146,010.00
9 Sole Dispositive Power: 0.00
10 Shared Dispositive Power: 5,146,010.00
11 Aggregate amount beneficially owned by each reporting person

5,146,010.00
12 Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

☐
13 Percent of class represented by amount in Row (11)

5.1 %
14 Type of Reporting Person (See Instructions)

IN

Comment for Type of Reporting Person: (8,10,11) Consists of 5,146,010 Ordinary Shares held by Mubbadrah. Mr. Al Barami owns 90% of Wild Investment, which owns 50% of Mubbadrah. By virtue of this relationship, Mr. Al Barami may be deemed to share voting and dispositive control over the Ordinary Shares held by Mubbadrah. Mr. Al Barami disclaims beneficial ownership of any Ordinary Shares held or beneficially owned by Mubbadrah, except to the extent of his pecuniary interests therein. (13) The percentage is calculated based upon a total of 100,777,759 Ordinary Shares, no par value, of National Energy Services Reunited Corp., outstanding as of September 30, 2025, as reported by the Issuer in its Form 6-K filed with the Securities and Exchange Commission on November 13, 2025, the last public disclosure by the Issuer of the outstanding Ordinary Shares of the Issuer.


SCHEDULE 13D/A
CUSIP No.
G6375R107


1 Name of reporting person

Hilal Al Busaidi
2 Check the appropriate box if a member of a Group (See Instructions)

☐  (a)
☒  (b)
3SEC use only
4 Source of funds (See Instructions)

OO
5 Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

☐
6 Citizenship or place of organization

OMAN
Number of Shares Beneficially Owned by Each Reporting Person With:
7 Sole Voting Power: 0.00
8 Shared Voting Power: 5,146,010.00
9 Sole Dispositive Power: 0.00
10 Shared Dispositive Power: 5,146,010.00
11 Aggregate amount beneficially owned by each reporting person

5,146,010.00
12 Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

☐
13 Percent of class represented by amount in Row (11)

5.1 %
14 Type of Reporting Person (See Instructions)

IN

Comment for Type of Reporting Person: (8, 10 and 11) Consists of 5,146,010 Ordinary Shares held by Mubbadrah. Mr. Al Busaidi owns 97.5% of Wild Investment, which owns 50% of Mubbadrah. By virtue of this relationship, Mr. Al Busaidi may be deemed to share voting and dispositive control over the Ordinary Shares held by Mubbadrah. Mr. Al Busaidi disclaims beneficial ownership of any Ordinary Shares held or beneficially owned by Mubbadrah, except to the extent of his pecuniary interests therein. (13) The percentage is calculated based upon a total of 100,777,759 Ordinary Shares, no par value, of National Energy Services Reunited Corp., outstanding as of September 30, 2025, as reported by the Issuer in its Form 6-K filed with the Securities and Exchange Commission on November 13, 2025, the last public disclosure by the Issuer of the outstanding Ordinary Shares of the Issuer.



SCHEDULE 13D/A

Item 1.Security and Issuer
(a) Title of Class of Securities:

Ordinary Shares, no par value
(b) Name of Issuer:

National Energy Services Reunited Corp.
(c) Address of Issuer's Principal Executive Offices:

777 Post Oak Blvd., Suite 730, Houston, TEXAS , 77056.
Item 1 Comment: EXPLANATORY NOTE This Amendment No. 8 (the "Amendment") amends and supplements the Schedule 13D filed with the Securities and Exchange Commission (the "Commission") on September 27, 2018, by Mubbadrah Investment LLC, an Oman limited liability company ("Mubbadrah"), Wild Investment LLC, an Oman limited liability company, formerly Wild Holding LLC ("Wild Investment"), Myrad Investment LLC, an Oman limited liability company, formerly Myrad Holding LLC ("Myrad Investment"), Yasser Al Barami ("Mr. Al Barami"), and Hilal Al Busaidi ("Mr. Al Busaidi" and, together with Mubbadrah, Wild Investment, Myrad Investment, and Mr. Al Barami, the "Reporting Persons"), as amended by the Amendment No. 1 thereto filed with the Commission on October 8, 2019, the Amendment No. 2 thereto filed with the Commission on June 24, 2020, the Amendment No. 3 thereto filed with the Commission on October 21, 2020, the Amendment No. 4 thereto filed with the Commission on November 22, 2021, the Amendment No. 5 thereto filed with the Commission on June 23, 2022, the Amendment No. 6 thereto filed with the Commission on August 12, 2024, and the Amendment No. 7 thereto filed with the Commission on March 24, 2025 (such Schedule 13D as amended to date, the "Schedule 13D"). Capitalized terms used but not otherwise defined in this Amendment have the meanings ascribed to such terms in the Schedule 13D. Except as expressly amended and supplemented by this Amendment, the Schedule 13D is not amended or supplemented in any respect, and the disclosures set forth in the Schedule 13D, other than as amended herein are incorporated by reference herein.
Item 3.Source and Amount of Funds or Other Consideration
 
Item 3 is hereby amended and modified to include the following (which shall be in addition to the information previously included in the Schedule 13D): This Amendment reports: (a) the sale by Mubbadrah in open market transactions from April 23, 2025 through October 23, 2025, of 1,515,464 ordinary shares of the Issuer as described on Schedule A.
Item 5.Interest in Securities of the Issuer
(a)
The information set forth on rows 11 and 13 of the cover pages of this Schedule 13D/A is incorporated by reference. The percentage set forth in row 13 is based upon a total of 100,777,759 Ordinary Shares, no par value, of National Energy Services Reunited Corp., outstanding as of September 30, 2025, as reported by the Issuer in its Form 6-K filed with the Securities and Exchange Commission on November 13, 2025, the last public disclosure by the Issuer of the outstanding Ordinary Shares of the Issuer.
(b)
The information set forth in rows 7 through 10 of the cover pages to this Schedule 13D/A is incorporated by reference.
(c)
This Amendment reports: (a) the sale by Mubbadrah in open market transactions from April 23, 2025 through October 23, 2025, of 1,515,464 ordinary shares of the Issuer as described on Schedule A.
(d)
No person (other than the Reporting Persons) is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the Ordinary Shares subject to this Schedule 13D/A.
(e)
Not applicable.

    SIGNATURE 
 
After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

 
Mubbadrah Investment LLC
 Signature:/s/ Hilal Al Busaidi
 Name/Title:Hilal Al Busaidi
 Date:11/24/2025
   
 Signature:/s/ Yasser Al Barami
 Name/Title:Yasser Al Barami
 Date:11/24/2025
 
Wild Investment LLC
 Signature:/s/ Yasser Al Barami
 Name/Title:Yasser Al Barami
 Date:11/24/2025
 
Myrad Investment LLC
 Signature:/s/ Hilal Al Busaidi
 Name/Title:Hilal Al Busaidi
 Date:11/24/2025
 
Yasser Al Barami
 Signature:/s/ Yasser Al Barami
 Name/Title:YASSER AL BARAMI
 Date:11/24/2025
 
Hilal Al Busaidi
 Signature:/s/ Hilal Al Busaidi
 Name/Title:HILAL AL BUSAIDI
 Date:11/24/2025

 

SCHEDULE A

 

Class of Security  Date of Sale  Shares Sold  

Average Price

Per Share Sold

($)

 
Ordinary Shares  4/23/2025   (50,300)  $6.36 
Ordinary Shares  4/24/2025   (49,700)  $6.35 
Ordinary Shares  5/06/2025   (100,000)  $6.28 
Ordinary Shares  7/01/2025   (15,614)  $6.40 
Ordinary Shares  7/02/2025   (184,386)  $6.44 
Ordinary Shares  7/07/2025   (25,726)  $6.42 
Ordinary Shares  7/08/2025   (41,857)  $6.70 
Ordinary Shares  7/09/2025   (47,008)  $6.43 
Ordinary Shares  7/10/2025   (873)  $6.45 
Ordinary Shares  7/17/2025   (100,000)  $6.11 
Ordinary Shares  8/19/2025   (9,881)  $7.31 
Ordinary Shares  8/20/2025   (290,119)  $8.21 
Ordinary Shares  8/21/2025   (50,000)  $8.49 
Ordinary Shares  8/22/2025   (50,000)  $8.63 
Ordinary Shares  8/25/2025   (100,000)  $8.63 
Ordinary Shares  8/26/2025   (100,000)  $8.60 
Ordinary Shares  9/10/2025   (100,000)  $10.00 
Ordinary Shares  9/15/2025   (100,000)  $10.35 
Ordinary Shares  10/22/2025   (75,089)  $11.54 
Ordinary Shares  10/23/2025   (24,911)  $11.96 
       (1,515,464)