Background Information

Vector Pipeline L.P. is a joint venture of Calgary, Alberta-based Enbridge Inc. and Detroit, Michigan-based DTE Energy Company. The business is a unique operation in that the affairs of the limited partnership are managed by a general partner (Vector Pipeline, LLC) that relies extensively on service providers in the conduct of the day-to-day business.

Vector's headquarter is located in Livonia, Michigan and is comprised of ten employees who manage the business with the assistance of a number of service providers. The service providers are affiliates of the owners whose services are provided under long term agreements.

Enbridge Inc. affiliates that provide services include Enbridge Offshore Pipelines, L.L.C. (gas control and nominations), Enbridge Pipelines Inc. (shared support services) and Enbridge (U.S.) Inc. (field operations, shared support services and gas accounting). Enbridge service providers are located in offices in various locations, including Edmonton, Alberta, Calgary, Alberta, Superior, Wisconsin, Griffith, Indiana, and Houston, Texas.

A DTE Energy Company affiliate, DTE Gas Company (DTE Gas), provides field operations services on a portion of the Vector transmission system that is leased from DTE Gas. DTE Gas personnel are located exclusively in Michigan.