 HOUSTON, March 18, 2022 GLOBE NEWSWIRE -- MRC Global Inc. NYSE: MRC will release its first quarter 2022 results on May 9, 2022, after the market closes. In conjunction with the release, the company will host a conference call, which will be webcast, on Tuesday, May 10, 2022, at 10:00 a.m. Eastern 9:00 a.m. Central. 