| NBGIX | NRGEX | NBGIX / NRGEX | |
| Total Expense Ratio | 0.84 | 0.02 | 4,200% |
| Annual Report Gross Expense Ratio | 0.84 | 0.68 | 124% |
| Fund Existence | 27 years | 4 years | - |
| Gain YTD | 6.577 | 6.961 | 94% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 1000000 | 0 | - |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 7.32B | 7.32B | 100% |
| Annual Yield % from dividends | 0.32 | 1.22 | 26% |
| Returns for 1 year | -5.59 | -4.81 | 116% |
| Returns for 3 years | -0.59 | 1.88 | -31% |
| Returns for 5 years | -23.15 | N/A | - |
| Returns for 10 years | 7.20 | N/A | - |