| Relationships | Role | Relationship Start | Relationship End |
| Kansas Natural Gas, Inc. | Parent | 7/1/2013 | 1/13/2015 |
| Kansas Natural Gas Operating, Inc. | Parent | 10/1/2011 | 6/30/2013 |
| Kansas Natural Gas, Inc. | Parent | 3/2/2001 | 9/30/2011 |
| Relationships | Role | Relationship Start | Relationship End |
| Kansas Natural Gas, Inc. | Parent | 7/1/2013 | 1/13/2015 |
| Kansas Natural Gas Operating, Inc. | Parent | 10/1/2011 | 6/30/2013 |
| Kansas Natural Gas, Inc. | Parent | 3/2/2001 | 9/30/2011 |