| Invesco Ltd. | 18,187,878 | $970,687 |
| Blackstone Inc. | 15,705,485 | $838,202 |
| TORTOISE CAPITAL ADVISORS, L.L.C. | 13,319,918 | $710,884 |
| GOLDMAN SACHS GROUP INC | 12,466,987 | $665,363 |
| BANK OF AMERICA CORP /DE/ | 8,531,066 | $455,303 |
| KAYNE ANDERSON CAPITAL ADVISORS LP | 7,227,400 | $385,726 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 6,908,382 | $368,700 |
| MORGAN STANLEY | 5,763,110 | $307,577 |
| UBS Group AG | 5,304,746 | $283,114 |
| Energy Income Partners, LLC | 5,299,724 | $282,846 |
| Brave Warrior Advisors, LLC | 4,474,115 | $238,784 |
| JPMORGAN CHASE & CO | 3,286,142 | $175,381 |
| BROOKFIELD Corp /ON/ | 2,959,830 | $157,966 |
| ING GROEP NV | 2,903,800 | $154,976 |
| CIBC Private Wealth Group, LLC | 2,724,200 | $145,391 |
| Clearbridge Investments, LLC | 2,343,689 | $125,083 |
| MILLER HOWARD INVESTMENTS INC /NY | 2,315,921 | $123,601 |
| Fractal Investments LLC | 2,051,301 | $109,478 |
| EAGLE GLOBAL ADVISORS LLC | 1,884,585 | $100,580 |
| CUSHING ASSET MANAGEMENT, LP dba NXG INVESTMENT MANAGEMENT | 1,883,800 | $100,538 |
| DUFF & PHELPS INVESTMENT MANAGEMENT CO | 1,832,003 | $97,774 |
| FMR LLC | 1,668,643 | $89,055 |
| AlphaCore Capital LLC | 1,606,602 | $85,744 |
| STIFEL FINANCIAL CORP | 1,328,139 | $70,883 |
| Epoch Investment Partners, Inc. | 1,156,589 | $61,727 |
| Mariner, LLC | 1,153,276 | $61,550 |
| NEUBERGER BERMAN GROUP LLC | 1,124,270 | $60,002 |
| BNP PARIBAS ARBITRAGE, SA | 1,106,127 | $59,034 |
| Progeny 3, Inc. | 1,058,959 | $56,517 |
| INFRASTRUCTURE CAPITAL ADVISORS, LLC | 1,037,984 | $55,397 |
| RAYMOND JAMES FINANCIAL INC | 955,698 | $51,006 |
| BARCLAYS PLC | 915,691 | $48,870 |
| COHEN & STEERS, INC. | 880,593 | $47 |
| DEUTSCHE BANK AG\ | 853,780 | $45,566 |
| Allianz Asset Management GmbH | 829,136 | $44,251 |
| ROYAL BANK OF CANADA | 791,478 | $42,240 |
| LONGFELLOW INVESTMENT MANAGEMENT CO LLC | 766,529 | $40,910 |
| Americana Partners, LLC | 760,306 | $40,578 |
| WELLS FARGO & COMPANY/MN | 748,670 | $39,956 |
| REAVES W H & CO INC | 670,500 | $35,785 |
| JENNISON ASSOCIATES LLC | 670,327 | $35,775 |
| Appaloosa LP | 627,500 | $33,490 |
| Northside Capital Management, LLC | 590,080 | $31,493 |
| U.S. Capital Wealth Advisors, LLC | 578,421 | $30,870 |
| Corient Private Wealth LLC | 559,598 | $29,698 |
| EXCHANGE TRADED CONCEPTS, LLC | 558,737 | $29,820 |
| Chicago Partners Investment Group LLC | 479,604 | $26,460 |
| LPL Financial LLC | 478,898 | $25,559 |
| CITIGROUP INC | 463,865 | $24,756 |
| ALPS ADVISORS INC | 429,566 | $22,926 |
| GOLDENTREE ASSET MANAGEMENT LP | 424,886 | $22,676 |
| Oxbow Advisors, LLC | 405,174 | $21,624 |
| Sovereign Investment Advisors, LLC | 372,208 | $19,865 |
| HighTower Advisors, LLC | 366,713 | $19,571 |
| Maryland State Retirement & Pension System | 354,526 | $18,921 |
| Bollard Group LLC | 353,420 | $19 |
| HRT FINANCIAL LP | 339,005 | $18 |
| Heronetta Management, L.P. | 323,639 | $17,273 |
| Texas Yale Capital Corp. | 311,445 | $16,622 |
| Jump Financial, LLC | 300,765 | $16,052 |
| Susquehanna Portfolio Strategies, LLC | 282,768 | $15,091 |
| Catalyst Capital Advisors LLC | 274,980 | $14,676 |
| WALNUT PRIVATE EQUITY PARTNERS, LLC | 257,500 | $13,743 |
| Private Capital Advisors, Inc. | 256,752 | $13,703 |
| TECTONIC ADVISORS LLC | 252,688 | $13,486 |
| Waverly Advisors, LLC | 246,265 | $13,143 |
| CITADEL ADVISORS LLC | 236,462 | $12,620 |
| DEROY & DEVEREAUX PRIVATE INVESTMENT COUNSEL INC | 227,482 | $12 |
| ENVESTNET ASSET MANAGEMENT INC | 224,310 | $11,971 |
| OPAL CAPITAL LLC | 219,789 | $11,730 |
| TrueMark Investments, LLC | 218,032 | $11,636 |
| &PARTNERS | 216,960 | $11,585 |
| Adams Asset Advisors, LLC | 209,589 | $11,186 |
| RR Advisors, LLC | 209,438 | $11,178 |
| Cetera Investment Advisers | 200,517 | $10,702 |
| Nuveen, LLC | 197,417 | $10,536 |
| Sequoia Financial Advisors, LLC | 195,035 | $10,409 |
| EVERGREEN CAPITAL MANAGEMENT LLC | 189,494 | $10,113 |
| Rockefeller Capital Management L.P. | 189,137 | $10,094 |
| AVENIR CORP | 186,892 | $9,974 |
| HENNESSY ADVISORS INC | 176,549 | $9,422 |
| GLENMEDE TRUST CO NA | 175,835 | $9,384 |
| UNITED CAPITAL FINANCIAL ADVISORS, LLC | 172,520 | $9,207 |
| Parkwood LLC | 169,976 | $9 |
| Cambridge Investment Research Advisors, Inc. | 159,677 | $9 |
| Advisors Asset Management, Inc. | 157,932 | $8,429 |
| COMMONWEALTH EQUITY SERVICES, LLC | 157,189 | $8,389 |
| JANE STREET GROUP, LLC | 156,208 | $8,337 |
| Advisors Capital Management, LLC | 154,299 | $8,235 |
| Blueprint Financial Advisors LLC | 152,998 | $8,165 |
| Blueprint Investment Partners LLC | 150,998 | $8,059 |
| OSAIC HOLDINGS, INC. | 150,746 | $8,046 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 148,049 | $7,901 |
| Turtle Creek Wealth Advisors, LLC | 146,090 | $7,797 |
| Gilman Hill Asset Management, LLC | 142,821 | $7,622 |
| NORDEN GROUP LLC | 142,300 | $7,595 |
| BlackRock, Inc. | 141,610 | $7,558 |
| STEPHENS INC /AR/ | 137,665 | $7,347 |
| OPPENHEIMER & CO INC | 136,187 | $7,268 |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC | 134,640 | $7,031 |
| 511 other institutions | 9,523,851 | $491,394 |