CUSIP No. G6375R107

CUSIP No. G6375R107

CUSIP No. G6375R107

CUSIP No. G6375R107

CUSIP No. G6375R107

Item 1. Security and Issuer

This Schedule 13D relates to the ordinary shares, no par value (“Ordinary Shares”), of National Energy Services Reunited Corp., a British Virgin Islands company (the “Issuer”). The address of the Issuer’s principal executive offices is 777 Post Oak Blvd., Suite 730, Houston, Texas 77056.

Item 2. Identity and Background

This Schedule 13D is being filed by Mubbadrah Investments LLC, a Oman limited liability company (“Mubbadrah”), Wild Holding LLC, an Oman limited liability company (“Wild Holding”), Myrad Holding LLC, an Oman limited liability company (“Myrad Holding”), Yasser Al Barami (“Mr. Al Barami”), and Hilal Al Busaidi (“Mr. Al Busaidi” and, together with Mubbadrah, Wild Holding, Myrad Holding, and Mr. Al Barami, the “Reporting Persons”).

The principal business of Mubbadrah is to invest in businesses and other ventures. The address of the principal office of Mubbadrah is Building No. 1/21 Way No. 5001 Near Al Nadha Towers, Ghala, Muscat, Oman.

The principal business of Wild Holding is to invest in businesses and other ventures. The address of the principal office of Wild Holding is P.O. Box 342, 116 Mina Al Fahal, Oman.

The principal business of Myrad Holding is to invest in businesses and other ventures. The address of the principal office of Myrad Holding is P.O. Box 342, 133 Al Khuwair, Oman.

The business address of Mr. Al Barami is P.O. Box 786, Postal Code 116, Mina Al Fahal, Oman. Mr. Al Barami’s present principal occupation is serving as COO of Mubbadrah. Mr. Al Barami is a citizen of Oman.

The business address of Mr. Al Busaidi is P.O. Box 786, Postal Code 116, Mina Al Fahal, Oman. Mr. Al Busaidy’s present principal occupation is serving as CEO of Mubbadrah. Mr. Al Busaidy is a citizen of Oman.

During the last five years, none of the Reporting Persons (i) has been convicted in a criminal proceeding (excluding traffic violations or similar misdemeanors) or (ii) has been a party to a civil proceeding of a judicial or administrative body of competent jurisdiction and as a result of such proceeding was or is subject to a judgment, decree, or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities laws or finding any violation with respect to such laws.

Item 3. Source and Amount of Funds or Other Consideration

On November 12, 2017, Mubbadrah, Mr. Al Barami, Mr. Al Busaidi, and Issuer entered into a purchase agreement pursuant to which Issuer agreed to purchase 61% of the outstanding equity interests of Gulf Energy S.A.O.C. (“GES”) in exchange for Issuer ordinary shares (the “GES Stock Purchase Agreement”). In accordance with the GES Stock Purchase Agreement, Mubbadrah acquired 17,242,424 Issuer ordinary shares at closing. For additional information, see Item 6 below.

Item 4. Purpose of Transaction

The Reporting Persons have acquired the Ordinary Shares reported herein for investment purposes.

The Reporting Persons may further sell, purchase, hold, vote, trade, dispose or otherwise deal in the Ordinary Shares at times, and in such manner, as they deem advisable to benefit from changes in the market prices of such Ordinary Shares, changes in the Issuer’s operations, business strategy or prospects, or from the sale or merger of the Issuer. To evaluate such alternatives, the Reporting Persons will routinely monitor the Issuer’s operations, prospects, business development, management, competitive and strategic matters, capital structure and prevailing market conditions, as well as alternative investment opportunities, liquidity requirements of the Reporting Persons and other investment considerations. Consistent with their investment evaluation criteria, the Reporting Persons may discuss such matters with management or directors of the Issuer, other shareholders, industry analysts, existing or potential strategic partners or competitors, investment and financing professionals, sources of credit and other investors. Such factors and discussions may materially affect, and result in, the Reporting Persons modifying their ownership of the Ordinary Shares, proposing changes in the Issuer’s operations, governance or capitalization, or in proposing one or more of the other actions described in subsections (a) through (j) of Item 4 of Schedule 13D.

Item 5. Interest in Securities of the Issuer

Item 6. Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer.

On November 12, 2017, the Issuer, Mubbadrah, Mr. Al Barami, and Mr. Al Busaidi entered into the GES Stock Purchase Agreement by which the Issuer contracted to acquire 61% of the outstanding shares of GES in exchange for Issuer ordinary shares. For a more detailed description of the GES Stock Purchase Agreement and other related matters, please refer to the Issuer’s Current Reports on Form 8-K filed with the Securities and Exchange Commission on November 16, 2017 and June 12, 2018, which are incorporated by reference into this Schedule 13D.

The foregoing description of the GES Stock Purchase Agreement is not intended to be complete and is qualified in its entirety by reference to the full text of the agreement, which have been filed or are incorporated by reference into this Schedule 13D.

Item 7. Material to be Filed as Exhibits

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.

Date: September 27, 2018