| Relationships | Role | Relationship Start | Relationship End |
| Kansas Natural Gas, Inc. | Parent | 7/1/2013 | 1/13/2015 |
| Kansas Natural Gas Operating, Inc. | Parent | 7/1/2010 | 6/30/2013 |
| Casper, Lc | Subsidary | 7/1/2010 | 6/30/2013 |
| Relationships | Role | Relationship Start | Relationship End |
| Kansas Natural Gas, Inc. | Parent | 7/1/2013 | 1/13/2015 |
| Kansas Natural Gas Operating, Inc. | Parent | 7/1/2010 | 6/30/2013 |
| Casper, Lc | Subsidary | 7/1/2010 | 6/30/2013 |