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Business Summary
Filings
Ownership
Valuation
Ownership — NOG
Institutional Holdings
Insider Transactions
US Institutional Ownership
100.0%
Institution
Shares
Value
Ownership %
Change
Filing Date
BlackRock, Inc.
16.04M
$291.0M
15.06%
+322.8K
2026-06-30
AMERICAN CENTURY COMPANIES INC
8.46M
$153.0M
7.94%
+483.0K
2026-06-30
STATE STREET CORP
7.18M
$133.0M
6.74%
+643.8K
2026-06-30
VANGUARD PORTFOLIO MANAGEMENT LLC
6.86M
$124.0M
6.44%
+276.9K
2026-06-30
Invesco Ltd.
6.01M
$109.0M
5.64%
+491.9K
2026-06-30
VANGUARD CAPITAL MANAGEMENT LLC
4.58M
$83.0M
4.30%
+79.7K
2026-06-30
DIMENSIONAL FUND ADVISORS LP
4.49M
$81.0M
4.21%
+341.6K
2026-06-30
UBS Group AG
4.04M
$73.0M
3.79%
-506.4K
2026-06-30
GEODE CAPITAL MANAGEMENT, LLC
2.71M
$49.0M
2.54%
+267.3K
2026-06-30
MILLENNIUM MANAGEMENT LLC
2.30M
$41.0M
2.16%
+1.76M
2026-06-30
GOLDMAN SACHS GROUP INC
1.93M
$35.0M
1.81%
+536.3K
2026-06-30
MORGAN STANLEY
1.87M
$34.0M
1.76%
-524.1K
2026-06-30
Sixth Street Partners Management Company, L.P.
1.85M
$33.0M
1.74%
--
2026-06-30
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
1.85M
$33.0M
1.74%
+167.2K
2026-06-30
Hood River Capital Management LLC
1.53M
$27.0M
1.44%
-53.1K
2026-06-30
FMR LLC
1.50M
$27.0M
1.41%
-4.89M
2026-06-30
Bank of New York Mellon Corp
1.47M
$26.0M
1.38%
+14.8K
2026-06-30
VOYA INVESTMENT MANAGEMENT LLC
1.31M
$23.0M
1.23%
-7.6K
2026-06-30
CITADEL ADVISORS LLC
1.30M
$23.0M
1.22%
+969.7K
2026-06-30
FIRST TRUST ADVISORS LP
1.25M
$22.0M
1.17%
+83.6K
2026-06-30
Encompass Capital Advisors LLC
1.25M
$22.0M
1.17%
--
2026-06-30
BANK OF AMERICA CORP /DE/
1.14M
$20.0M
1.07%
-104.4K
2026-06-30
VICTORY CAPITAL MANAGEMENT INC
1.09M
$19.0M
1.02%
+600.1K
2026-06-30
NORTHERN TRUST CORP
1.03M
$18.0M
0.97%
+7.7K
2026-06-30
Nuveen, LLC
900.1K
$16.0M
0.84%
-834.7K
2026-06-30
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