Reporting Manager
American Century Investment Management, Inc.
Symbol
NOG
Shares outstanding
99.2M shares
Disclosed Ownership
8.03M shares
Ownership
8.1%
Form type
SCHEDULE 13G/A
Date filed
8/14/2025, 09:08 AM
Date of event
Jun 30, 2025

Reporting Managers (3)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
American Century Investment Management, Inc. 8.1% 8.03M 7.89M 0 American Century Investment Management, Inc. /s/ John Pak / Senior Vice President
American Century Companies, Inc. 8.1% 8.03M 7.89M 0 American Century Companies, Inc. /s/ John Pak / Senior Vice President
Stowers Institute for Medical Research 8.1% 8.03M 7.89M 0 Stowers Institute for Medical Research /s/ Joselyn Verschelden / Authorized Signer