| 1 | DRIMAL CHARLES E JR Chief Executive Officer 10% Owner | 2025-07-02 19:33:08 | 1,374,070 0 | 1,374,070 | Form 13D |
| 2 | GS Capital Partners V Institutional L P McJ Holding CORP McJ Holdings L.L.C. 10% Owner | 2007-02-12 21:51:19 | 0 1,216,538 | 1,216,538 | Form 3 |
| 3 | WEHRLE MICHAEL H See Footnote (2) 10% Owner | 2004-07-06 12:23:30 | 13,000 673,521 | 686,521 | Form 4 |
| 4 | DE ROTHSCHILD ROBERT 10% Owner | 2025-06-06 07:12:46 | 0 230,757 | 230,757 | Form 4 |
| 5 | ECKENSTEIN MATTHIAS Director | 2006-11-13 07:09:08 | 0 224,000 | 224,000 | Form 4 |
| 6 | HURT CLINT Director | 2025-02-24 09:07:00 | 125,763 0 | 125,763 | Form 13D |
| 7 | FONG GIFFORD Director | 2024-02-01 13:56:24 | 112,116 0 | 112,116 | Form 13D |
| 8 | SMEETS JAN K Director | 2024-01-25 16:40:09 | 89,398 0 | 89,398 | Form 13D |
| 9 | WEHRLE GAINES Former Director / 10% Owner Director | 2024-01-08 16:05:17 | 82,927 0 | 82,927 | Form 13G |
| 10 | CUMMINGS BEVERLY A Executive VP | 2007-08-21 14:05:01 | 75,000 0 | 75,000 | Form 4 |
| 11 | CAMPBELL SAMUEL R Director | 2004-04-27 15:38:03 | 40,375 0 | 40,375 | Form 4 |
| 12 | GIMBEL THOMAS S T Director | 2012-04-18 06:01:15 | 1000 0 | 1000 | Form 4 |
| 13 | McJunkin Red Man Corp 10% Owner | 2010-06-07 17:25:16 | 0 0 | 0 | Form 4 |
| 14 | GOLDMAN SACHS GROUP INC GOLDMAN SACHS & CO GS CAPITAL PARTNERS V FUND L.P. GS CAPITAL PARTNERS V OFFSHORE FUND L.P. GS CAPITAL PARTNERS V INSTITUTIONAL L.P. GS CAPITAL PARTNERS V GMBH & CO. KG GSCP V ADVISORS L.L.C. GSCP V OFFSHORE ADVISORS L.L.C. GS ADVISORS V L.L.C. GOLDMAN SACHS MANAGEMENT GP GMBH 10% Owner | 2010-06-07 21:48:51 | 0 0 | 0 | Form 4 |
| 15 | GS Capital Partners VI Fund L.P. GS Capital Partners VI Offshore Fund L.P. GS Capital Partners VI Parallel LP GS Capital Partners VI GmbH & Co KG GSCP VI Advisors L.L.C. GS Advisors VI L.L.C. GSCP VI Offshore Advisors L.L.C. PVF Holdings LLC MCJUNKIN RED MAN HOLDING CORP 10% Owner | 2010-06-07 21:49:37 | 0 0 | 0 | Form 4 |
| 16 | VARET MICHAEL A 10% Owner | 2016-01-29 16:59:49 | 0 0 | 0 | Form 3 |
| 17 | AZRIA RENE PIERRE 10% Owner | 2016-01-29 17:06:07 | 0 0 | 0 | Form 3 |