| ||
|
| Consumers Energy Natural gas transmission and distribution pipeline and electricity generation transmission and distribution. | |
| Rochester Gas & Electric Provider of electric, propane and gas energy, marketing services and retail sales. | ||
| Shoreline Gas Marketing company providing natural gas supply, management and marketing services to producers, transportation and wholesale markets | ||
| Equitable Resources Natural gas exploration, transportation, production, construction and distribution company. | ||
| Washington Gas Natural gas provider offering related energy services. | ||
| New Jersey Natural Gas Independent natural gas distribution and transportation company in New Jersey. | ||
| Northern Utilities A subsidiary of Bay State Gas, providing natural gas to Maine and New Hampshire. | ||
| MidAmerican Energy Utility provides electric and natural gas service to much of Iowa and portions of Illinois, Nebraska and South Dakota. | ||
| NIPSCO Industries Provider of utility services and products to homes and businesses. | ||
| Citizens Gas & Coke Utility Public charitable trust-directed utility providing natural gas for residential, commercial and industrial needs. | ||
| Eastern Enterprises Eastern's subsidiaries include Boston Gas, Colonial Gas and Essex Gas. Subsidiary of KeySpan. | ||
| ANR Pipeline Natural gas provider for the US and Canada. | ||
| Providence Energy Distributor and marketer of oil, natural gas and electricity. | ||
| LG&E Energy Energy services company that owns and operates businesses in power generation, project development, asset-based energy marketing and retail gas and electric distribution services. | ||
| ONEOK Natural gas distribution, transportation and storage services. | ||
| Kinder Morgan Operates natural gas and petroleum pipelines and storage, marketing, along with retail distribution and electric generation assets. | ||
| Boston Gas Co. Natural gas distributor in New England, subsidiary of Eastern Enterprises. | ||
| MichCon Natural gas distributor and storage utility. | ||
| Atlanta Gas Light Natural gas distribution utility for residential, commercial and industrial customers in the southern US. | ||
| ||