| MLPZX | OSPMX | MLPZX / OSPMX | |
| Total Expense Ratio | 8.77 | 8.68 | 101% |
| Annual Report Gross Expense Ratio | 8.77 | 8.68 | 101% |
| Fund Existence | 16 years | 13 years | - |
| Gain YTD | 6.770 | 6.812 | 99% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 1000 | 1000000 | 0% |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 3.88B | 3.88B | 100% |
| Annual Yield % from dividends | 6.79 | 6.67 | 102% |
| Returns for 1 year | 5.95 | 6.00 | 99% |
| Returns for 3 years | 62.07 | 62.57 | 99% |
| Returns for 5 years | 189.20 | 190.40 | 99% |
| Returns for 10 years | 175.13 | 176.91 | 99% |