Maryland Pipeline Operators
| Note: Additional pipeline operators may exist in your area. Visit the National Pipeline Mapping System (NPMS) to find companies in your area not listed below. |  | |
 | Columbia Gas of Maryland 24 Hour Emergency Contact: 1-888-460-4332 Operator Profile | |
 | Eastern Gas Transmission and Storage 24 Hour Emergency Contact: 1-888-264-8240 Operator Profile | |
 | Eastern Shore Natural Gas Company 24 Hour Emergency Contact: 1-877-650-1257 Operator Profile | |
 | Sunoco, LLC 24 Hour Emergency Contact: 1-800-786-7440 Operator Profile | |
 | TC Energy / Columbia Gas Transmission 24 Hour Emergency Contact: 1-800-835-7191 Operator Profile | |
 | Texas Eastern Transmission, LP (Enbridge) 24 Hour Emergency Contact: 1-800-231-7794 Operator Profile | |
 | UGI Utilities, Inc. 24 Hour Emergency Contact: 1-800-276-2722 Operator Profile | |