| NRGEX | WFSAX | NRGEX / WFSAX | |
| Total Expense Ratio | 0.02 | 1.28 | 2% |
| Annual Report Gross Expense Ratio | 0.68 | 1.36 | 50% |
| Fund Existence | 4 years | 22 years | - |
| Gain YTD | 10.265 | 12.599 | 81% |
| Front Load | N/A | 6% | - |
| Min. Initial Investment | 0 | 1000 | - |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 7.49B | 541M | 1,384% |
| Annual Yield % from dividends | 1.22 | 0.00 | - |
| Returns for 1 year | -2.31 | 13.03 | -18% |
| Returns for 3 years | 4.11 | 2.93 | 140% |
| Returns for 5 years | N/A | -52.60 | - |
| Returns for 10 years | N/A | -18.69 | - |