| Yorktown Energy Partners XI, L.P. | 1,284,113 | $42.3m | 39.2% |
| BlackRock, Inc. | 1,222,746 | $40.3m | 0.0% |
| First Eagle Investment Management, LLC | 861,892 | $28.4m | 0.0% |
| DIMENSIONAL FUND ADVISORS LP | 799,838 | $26.4m | 0.0% |
| AMERICAN CENTURY COMPANIES INC | 690,242 | $22.8m | 0.0% |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 686,882 | $22.6m | 0.0% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 652,214 | $21.5m | 0.0% |
| VANGUARD CAPITAL MANAGEMENT LLC | 644,556 | $21.2m | 0.0% |
| AQR CAPITAL MANAGEMENT LLC | 579,319 | $19.1m | 0.0% |
| TWO SIGMA INVESTMENTS, LP | 523,161 | $17.2m | 0.0% |
| GEODE CAPITAL MANAGEMENT, LLC | 333,245 | $11.0m | 0.0% |
| STATE STREET CORP | 325,904 | $10.7m | 0.0% |
| LSV ASSET MANAGEMENT | 306,793 | $10.1m | 0.0% |
| ROYCE & ASSOCIATES LP | 272,319 | $9.0m | 0.1% |
| MACKENZIE FINANCIAL CORP | 259,419 | $8.6m | 0.0% |
| KENNEDY CAPITAL MANAGEMENT LLC | 254,631 | $8.4m | 0.1% |
| Bank of New York Mellon Corp | 243,344 | $8.0m | 0.0% |
| DENALI ADVISORS LLC | 228,051 | $7.5m | 0.8% |
| FIRST TRUST ADVISORS LP | 219,746 | $7.2m | 0.0% |
| RENAISSANCE GROUP LLC | 184,190 | $6.1m | 0.2% |
| PRUDENTIAL FINANCIAL INC | 176,378 | $5.8m | 0.0% |
| UBS Group AG | 174,219 | $5.7m | 0.0% |
| NORTHERN TRUST CORP | 167,119 | $5.5m | 0.0% |
| Point72 Asset Management, L.P. | 160,994 | $5.3m | 0.0% |
| SEIZERT CAPITAL PARTNERS, LLC | 159,024 | $5.2m | 0.2% |