| Kercheville Advisors, LLC | 390,521 | $6,810,689 | 4.32% |
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| ALPS ADVISORS INC | 19,865,418 | $346,452,890 | 2.88% |
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| INFRASTRUCTURE CAPITAL ADVISORS, LLC | 1,395,699 | $24,340,991 | 2.78% |
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| Fractal Investments LLC | 643,707 | $11,226,250 | 2.31% |
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| Adams Asset Advisors, LLC | 675,196 | $11,775,418 | 1.58% |
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| EAGLE GLOBAL ADVISORS LLC | 1,143,415 | $19,941,158 | 1.29% |
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| SL ADVISORS, LLC | 51,079 | $891,230 | 1.20% |
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| TORTOISE CAPITAL ADVISORS, L.L.C. | 3,850,472 | $67,152,232 | 1.02% |
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| Sovereign Investment Advisors, LLC | 108,805 | $1,897,559 | 0.74% |
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| ICON ADVISERS INC/CO | 160,000 | $2,728,864 | 0.68% |
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| CUSHING ASSET MANAGEMENT, LP dba NXG INVESTMENT MANAGEMENT | 322,594 | $5,626,039 | 0.57% |
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| Ghisallo Capital Management LLC | 300,000 | $5,232,000 | 0.54% |
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| Tortoise Index Solutions, LLC | 132,684 | $2,314,009 | 0.48% |
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| KAYNE ANDERSON CAPITAL ADVISORS LP | 676,600 | $11,799,904 | 0.37% |
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| DIVIDEND ASSETS CAPITAL, LLC | 72,079 | $1,257 | 0.26% |
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| MILLER HOWARD INVESTMENTS INC /NY | 390,584 | $6,811,785 | 0.25% |
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| Sendero Wealth Management, LLC | 66,455 | $1,158,976 | 0.25% |
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| BASSO CAPITAL MANAGEMENT, L.P. | 12,200 | $212,768 | 0.24% |
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| Mirae Asset Global Investments Co., Ltd. | 5,025,635 | $87,647,074 | 0.19% |
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| Penn Mutual Asset Management, LLC | 10,700 | $186,608 | 0.18% |
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