| Name | CIK | SIC | Ticker | Quote | News |
|---|---|---|---|---|---|
| DAWSON GEOPHYSICAL CO | 0000799165 | 1382 | DWSN | Quote | News |
| Discovery Energy Corp. | 0001435387 | 1382 | ** | NA | NA |
| RIDGEWOOD ENERGY A-1 FUND LLC | 0001457919 | 1382 | ** | NA | NA |
| Ridgewood Energy O Fund LLC | 0001315061 | 1382 | ** | NA | NA |
| RIDGEWOOD ENERGY Q FUND LLC | 0001338474 | 1382 | ** | NA | NA |
| RIDGEWOOD ENERGY S FUND LLC | 0001352190 | 1382 | ** | NA | NA |
| RIDGEWOOD ENERGY T FUND LLC | 0001364397 | 1382 | ** | NA | NA |
| Ridgewood Energy U Fund LLC | 0001377178 | 1382 | ** | NA | NA |
| RIDGEWOOD ENERGY V FUND LLC | 0001385662 | 1382 | ** | NA | NA |
| Ridgewood Energy W Fund LLC | 0001409947 | 1382 | ** | NA | NA |
| RIDGEWOOD ENERGY X FUND, LLC | 0001455741 | 1382 | ** | NA | NA |
| RIDGEWOOD ENERGY Y FUND LLC | 0001434070 | 1382 | ** | NA | NA |
| ZION OIL & GAS INC | 0001131312 | 1382 | ZNOG | Quote | News |