United States securities and exchange commission logo September 2, 2021 Kelly Youngblood Chief Financial Officer MRC Global Inc. Fulbright Tower 1301 McKinney Street Suite 2300 Houston, Texas 77010 Re: MRC Global Inc. Form 10-K for the Year Ended December 31, 2020 Filed February 12, 2021 File No. 001-35479 Dear Mr. Youngblood: We have completed our review of your filing. We remind you that the company and its management are responsible for the accuracy and adequacy of their disclosures, notwithstanding any review, comments, action or absence of action by the staff. Sincerely, Division of Corporation Finance Office of Trade & Services