| BlackRock, Inc. | 79,044,298 | $1.5bn | 0.0% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 41,264,996 | $759.7m | 0.0% |
| PRICE T ROWE ASSOCIATES INC /MD/ | 38,222,120 | $703.7m | 0.1% |
| VANGUARD CAPITAL MANAGEMENT LLC | 35,747,918 | $658.1m | 0.0% |
| STATE STREET CORP | 27,699,371 | $509.9m | 0.0% |
| DIMENSIONAL FUND ADVISORS LP | 27,193,401 | $500.6m | 0.1% |
| T. Rowe Price Investment Management, Inc. | 21,604,211 | $397.7m | 0.3% |
| Post Oak Energy Holdings, LLC | 21,048,629 | $387.5m | 100.0% |
| BARROW HANLEY MEWHINNEY & STRAUSS LLC | 20,979,855 | $386.2m | 1.2% |
| Capital World Investors | 20,324,301 | $374.2m | 0.0% |
| WELLINGTON MANAGEMENT GROUP LLP | 20,156,113 | $371.1m | 0.1% |
| GEODE CAPITAL MANAGEMENT, LLC | 18,201,110 | $335.2m | 0.0% |
| Boston Partners | 18,115,841 | $333.6m | 0.3% |
| Nuveen, LLC | 16,166,151 | $297.6m | 0.1% |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 15,241,771 | $280.6m | 0.1% |
| CITADEL ADVISORS LLC | 14,433,052 | $265.7m | 0.0% |
| FMR LLC | 14,132,975 | $260.2m | 0.0% |
| VICTORY CAPITAL MANAGEMENT INC | 11,805,584 | $217.3m | 0.1% |
| AMERICAN CENTURY COMPANIES INC | 10,201,224 | $187.8m | 0.1% |
| AQR CAPITAL MANAGEMENT LLC | 8,791,714 | $161.9m | 0.1% |
| Alyeska Investment Group, L.P. | 7,907,283 | $145.6m | 0.4% |
| Qube Research & Technologies Ltd | 7,742,626 | $142.5m | 0.1% |
| RENAISSANCE TECHNOLOGIES LLC | 7,606,637 | $140.0m | 0.2% |
| Bank of New York Mellon Corp | 7,556,797 | $139.1m | 0.0% |
| MORGAN STANLEY | 7,503,487 | $138.1m | 0.0% |