| Subsidiary Issuer | Guarantor | ||||
| Boardwalk Pipelines, LP 5.95% Notes due 2026 | Boardwalk Pipeline Partners, LP | ||||
| Boardwalk Pipelines, LP 4.45% Notes due 2027 | Boardwalk Pipeline Partners, LP | ||||
| Boardwalk Pipelines, LP 4.80% Notes due 2029 | Boardwalk Pipeline Partners, LP | ||||
| Boardwalk Pipelines, LP 3.40% Notes due 2031 | Boardwalk Pipeline Partners, LP | ||||
| Boardwalk Pipelines, LP 3.60% Notes due 2032 | Boardwalk Pipeline Partners, LP | ||||
| Boardwalk Pipelines, LP 5.625% Notes due 2034 | Boardwalk Pipeline Partners, LP | ||||