| NRGEX | WFSAX | NRGEX / WFSAX | |
| Total Expense Ratio | 0.02 | 1.27 | 2% |
| Annual Report Gross Expense Ratio | 0.68 | 1.35 | 50% |
| Fund Existence | 5 years | 23 years | - |
| Gain YTD | 17.078 | 11.769 | 145% |
| Front Load | N/A | 6% | - |
| Min. Initial Investment | 0 | 1000 | - |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 7.39B | 526M | 1,405% |
| Annual Yield % from dividends | 1.15 | 0.00 | - |
| Returns for 1 year | -0.45 | 5.22 | -9% |
| Returns for 3 years | 9.50 | 1.47 | 645% |
| Returns for 5 years | N/A | -51.58 | - |
| Returns for 10 years | N/A | -28.10 | - |