| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | KAYNE ANDERSON CAPITAL ADVISORS, L.P. | 5,085,575 | 4.77 | $191,217,620 | 30-Sep-09 | | GOLDMAN SACHS GROUP INC | 4,254,153 | 3.99 | $159,956,152 | 30-Sep-09 | | TORTOISE CAPITAL ADVISORS, LLC | 3,467,500 | 3.25 | $130,378,000 | 30-Sep-09 | | Pictet Asset Management Ltd | 2,064,000 | 1.94 | $77,606,400 | 30-Sep-09 | | Allianz Global Investors of America L.P. | 1,724,400 | 1.62 | $64,837,440 | 30-Sep-09 | | MERRILL LYNCH & CO., INC. | 1,718,026 | 1.61 | $64,597,777 | 30-Sep-09 | | MORGAN STANLEY | 1,713,568 | 1.61 | $64,430,156 | 30-Sep-09 | | Invesco Ltd. | 1,636,163 | 1.54 | $61,519,728 | 30-Sep-09 | | New Mountain Vantage Advisers, L.L.C. | 1,504,986 | 1.41 | $56,587,473 | 30-Sep-09 | | UBS AG | 1,437,750 | 1.35 | $54,059,400 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | TORTOISE ENERGY INFRASTRUCTURE CORP | 1,724,796 | 1.62 | $62,506,607 | 31-Aug-09 | | Allianz Fds-NFJ Small Cap Value Fd | 1,575,900 | 1.48 | $57,110,616 | 31-Aug-09 | | Tortoise Energy Capital Corporation | 768,800 | .72 | $27,861,312 | 31-Aug-09 | | PROFESSIONALLY MANAGED PORTF-OSTERWEIS FUND | 316,787 | .30 | $11,911,191 | 30-Sep-09 | | ENERGY INCOME & GROWTH FUND | 302,756 | .28 | $10,971,877 | 31-Aug-09 | | Macquarie Global Infrastructure Total Return Fund | 294,488 | .28 | $10,672,245 | 31-Aug-09 | | JANUS PERKINS SMALL CAP VALUE FUND | 252,100 | .24 | $9,478,960 | 30-Sep-09 | | MLP & Strategic Equity Fd | 184,803 | .17 | $7,133,395 | 31-Jul-09 | | PACIFIC SELECT FUND-SMALL CAP VALUE | 141,100 | .13 | $4,904,636 | 30-Jun-09 | | Cushing MLP Total Return Fund | 126,500 | .12 | $4,756,400 | 30-Sep-09 |
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Value shown is computed using the security's price on the report date given.
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