T.D. Williamson, Inc. - International manufacturer and services provider for hot tap and hot tapping equipment and services and other pipeline maintenance equipment. International Pipeline Equipment Company Ltd. - IPEC offers specialized pipeline equipment. PipeSak Incorporated - Offers a new patented system of gravel-filled baffles which straddle a pipeline to achieve buoyancy control. Features advantages, a list of technical notes, and a comparison with other techniques. Lamb Service Industries, Inc. - Supplies the oilfield with new and reconditioned casing, tubing, drill pipe-handling equipment. Shaw Pipeline - Specializes in technology-based exploration and production products and services for pipeline, petrochemical and industrial markets worldwide. Manufacturing and service facilities globally. En-Fab, Inc. - Designs, engineers, and fabricates equipment and systems for metering and measurement, pipelines, gas gathering, oil production, and enhanced oil recovery. The John M. Ellsworth Company - Wholesales fuel nozzles, hoses, filters, breakaways and gasoline pumps. BKW, Inc. - Provides pipeline pigging technology, equipment and anchoring systems, pipe supports, slug catchers and engineering services. Based in Tulsa, Oklahoma. Offers information about products. Oil Storage Solutions - Residential home heating oil tank cover and accessories. Based in New York. Includes a catalog and a list of distributors. Pipeline Operator Qualification System Consortium, Inc. - Automates the processes necessary for operators of natural gas and hazardous liquid pipelines to comply with the relevant sections of US Federal Regulations. Iroquois Pipeline Operating Company - Operates 375 miles of natural gas pipelines in the northeastern US. Fort Union Gas Gathering - Fort Union Gas Gathering is the natural gas gathering system, transporting coalbed methane from Wyoming's Powder River Basin. Enbridge Inc. - Operates many gas and liquids pipelines in Canada and the US. Includes a natural gas utility in Canada. Pipe Line Contractors Association of Canada - Members are contractors that build pipelines. Association performs member services, safety training, and lobbying services. Nicor Enerchange - Provides short and long-term natural gas storage and transportation services in the Chicago market area. AGL Resources Inc. - Natural gas distribution, marketing, and energy services. Includes a company profile, career opportunities, and investor relations. (NYSE: AGL) Delta Natural Gas Company, Inc. - Distributes and transmits natural gas. (Nasdaq: DGAS). Dynegy Inc. - Provides electricity, natural gas, and natural gas liquids to wholesale customers in the United States and to retail customers in the state of Illinois. Owns and operates power plants, gas processing plants and electric transmission and distribution lines. Kinder Morgan - Energy company operating a large network of natural gas and refined petroleum products pipelines. Pecan Pipeline Company - Provides natural gas gathering, compression and conditioning services to producers in Texas with emphasis on the Fort Worth Barnett Shale Basin. Spectra Energy Partners - Owns and operates pipelines and facilities for natural gas gathering and processing, transportation, storage and distribution. Transcanada Pipelines, Ltd. - Company focused on natural gas transmission and power services. Includes corporate and shareholder information, environmental issues, and career opportunities.( TSE AND NYSE: TRP ) TC PipeLines, LP - Owns and manages United States-based natural gas pipelines. (Nasdaq: TCLPZ). Pipeline Measurement and Control - Provides turn-key systems, equipment, and services for production and pipeline custody metering, control and conditioning of crude oil, natural gas and refined or processed hydrocarbon fluids. Phenix Group - Planning a pipeline across Nicaragua for transporting petroleum products in bulk between the Atlantic and Pacific Oceans.