| 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 | 5 years | - |
| Gain YTD | 11.929 | 12.419 | 96% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 1000000 | 0 | - |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 7.51B | 7.51B | 100% |
| Annual Yield % from dividends | 0.30 | 1.14 | 26% |
| Returns for 1 year | -5.31 | -4.53 | 117% |
| Returns for 3 years | -1.80 | 0.62 | -292% |
| Returns for 5 years | -19.96 | N/A | - |
| Returns for 10 years | 10.30 | N/A | - |