| Company | Symbol | Filed By | Filing Date | Filing |
|---|---|---|---|---|
| Yorktown Energy Partners Viii, L.p. | 2019-03-20 | |||
| Yorktown Energy Partners Viii, L.p. | 2018-12-04 | |||
| Yorktown Energy Partners Vii, L.p. | 2018-05-17 | |||
| Yorktown Energy Partners Vii, L.p. | 2016-11-16 | |||
| Yorktown Energy Partners Vii, L.p. | 2016-08-19 |