Form SC 13G/A NEXTIER OILFIELD SOLUTIO Filed by: VANGUARD GROUP INC May 10, 2023 09:49AM
Form SC 13G/A NEXTIER OILFIELD SOLUTIO Filed by: VANGUARD GROUP INC Feb 9, 2023 11:52AM
Form SC 13G/A NEXTIER OILFIELD SOLUTIO Filed by: VANGUARD GROUP INC Feb 10, 2022 08:41AM
Form SC 13G/A NEXTIER OILFIELD SOLUTIO Filed by: VANGUARD GROUP INC Feb 10, 2021 11:31AM
Form SC 13G NEXTIER OILFIELD SOLUTIO Filed by: VANGUARD GROUP INC Feb 11, 2020 04:41PM