Atlas Pipeline Partners, L.P. engages in the transmission, gathering, and processing of natural gas. The company primarily provides natural gas gathering services in the Anadarko, Arkoma, Golden Trend, and Permian Basins in the southwestern and mid-continent United States and the Appalachian Basin in the eastern.. Read More

Boardwalk Pipeline Partners, LP, through its subsidiaries, engages in the interstate transportation and storage of natural gas in the United States. The company owns and operates three natural gas pipeline systems to transport and store natural gas for marketers, local distribution companies, producers, electric.. Read More

Buckeye GP Holdings L.P., through its general partner interests in Buckeye Partners, L.P., engages in the transportation, terminalling, and storage of refined petroleum products for integrated oil companies, refined products marketing companies, and end users of petroleum products in the United States. The.. Read More

Buckeye Partners, L.P., through its subsidiaries, engages in the transportation, terminalling, and storage of refined petroleum products for integrated oil companies, large refined products marketing companies, and users of petroleum products in the United States. It also operates pipelines owned by third parties.. Read More

Cheniere Energy Partners, L.P., through its subsidiary, Sabine Pass LNG, L.P., owns and operates the Sabine Pass liquid natural gas (LNG) receiving terminal in western Cameron Parish, Louisiana on the Sabine Pass Channel. Its Sabine Pass LNG receiving terminal is under construction with regasification capacity of.. Read More

Copano Energy, L.L.C. provides midstream services to natural gas producers, including natural gas gathering, compression, dehydration, treating, transportation, processing, conditioning and fractionation. It owns and operates natural gas gathering and intrastate transmission pipeline assets, and natural gas.. Read More

DCP Midstream Partners, LP engages in gathering, compressing, treating, processing, transporting, and selling natural gas. It also involves in producing, transporting, storing, and selling propane; and transporting and selling natural gas liquids (NGLs) and condensate. The companys Natural Gas Services segment operates the Northern Louisiana natural gas gathering, processing, and transportation system; and Southern Oklahoma system. This segment also operates Colorado and Wyoming gathering, processing and compression assets, which include Collbran Valley Gas Gathering system and a processing facility; Powder River Basin assets that comprise Douglas gas gathering system, Millis terminal, and associated NGL pipelines in southwestern Wyoming; and Michigan gathering and treating assets, which consist of five natural gas treating plants, an approximately 155-mile gas gathering pipeline system, an approximately 55-mile residue gas pipeline, an approximately 25-mile residue pipeline, and Litchfield pipeline. In addition, it owns interests in a 600 MMcf/d cryogenic natural gas processing plant, a natural gas liquids fractionator plant, and an approximately 280-mile natural gas pipeline; and a 780 MMcf/d natural gas processing complex, a natural gas liquids fractionator, and an approximately 900-mile gathering system. The companys Wholesale Propane Logistics segment owns and operates five rail terminals in the Midwest and northeastern United States; one leased marine terminal located in Providence, Rhode Island; and one pipeline terminal in Midland, Pennsylvania, as well as has access to various open-access pipeline terminals. Its NGL Logistics segment operates the Seabreeze and Wilbreeze NGL transportation pipelines in Texas, and owns a non-operated 45% equity interest in the Black Lake interstate NGL pipeline in Louisiana and Texas. DCP Midstream GP, LP serves as a general partner for the company. DCP Midstream Partners is based in Denver, Colorado.

Duncan Energy Partners L.P. engages in gathering, transporting, marketing, and storing natural gas, as well as in transporting and storing natural gas liquids (NGLs) and petrochemicals in the United States. It operates in three segments: Natural Gas Pipelines and Services, NGL Pipelines and Services, and.. Read More

El Paso Corporation operates in the natural gas transmission, and exploration and production sectors of the energy industry in the United States. It offers natural gas transmission services to a range of customers, including natural gas producers, marketers, and end-users, as well as other natural gas.. Read More

Enbridge Energy Partners, L.P. engages in the ownership and operation of crude oil and liquid petroleum transportation and storage assets, and natural gas gathering, treating, processing, transmission, and marketing assets in the United States. It operates in three segments: Liquids, Natural Gas, and Marketing... Read More

Enbridge Inc. engages in the transportation and distribution of crude oil and natural gas primarily in Canada and the United States. The companys Liquids Pipelines segment operates the crude oil and liquids pipeline system and feeder pipelines that transport crude oil. This system has approximately 8,000 kilo meters of mainline pipe in Canada, and 5,600 kilo meters of mainline pipe in the United States. Its Gas Pipelines segment holds interests in natural gas transmission and gathering systems in the Gulf of Mexico and the United States. The Gas Distribution and Services segment engages in the natural gas utility operations. This segment also engages in the fractionation and extraction of natural gas, as well as the companys commodity marketing business. Enbridge Inc. also owns natural gas and crude oil pipelines. It also holds interests in energy transportation and related energy projects in Colombia and Spain. It was formerly known as IPL Energy Inc. and changed its name to Enbridge Inc. in October 1998. The company was founded in 1949 and is headquartered in Calgary, Canada.

Energy Transfer Equity, L.P., through its general partnership interest in Energy Transfer Partners, L.P., engages in the natural gas midstream, transportation, and storage in the United States. Its Midstream segment engages in the operation of approximately 6,700 miles of natural gas gathering and transportation pipelines; 3 natural gas processing plants; 11 natural gas treating facilities; and 11 natural gas conditioning facilities. The companys Intrastate Transportation and Storage segment operates 7,800 miles of natural gas transportation pipelines and 3 natural gas storage facilities. Its Interstate Transportation segment involves in the operation of 2,700 miles of interstate natural gas pipeline. The company has joint venture agreement with KMP to construct and operate Midcontinent Express and Fayetteville Express interstate pipelines. In addition, Energy Transfer Equity, L.P. sells propane and propane-related products and services to residential, commercial, industrial, and agricultural customers through 440 customer service locations. It serves approximately 1 million customers. LE GP, LLC serves as the general partner of Energy Transfer Equity, L.P. The company was formerly known as La Grange Energy, L.P. The company was founded in 2002 and is based in Dallas, Texas.

Energy Transfer Partners, L.P., through its subsidiaries, engages in the natural gas midstream, and intrastate transportation and storage businesses in the United States. Its midstream operations focus on the gathering, compression, treating, blending, processing, and marketing of natural gas in the Austin Chalk trend of southeast Texas, the Permian Basin of west Texas, the Barnett Shale in north Texas, the Bossier Sands in east Texas, and the Uinta and Piceance Basins in Utah and Colorado. The companys intrastate transportation and storage operations focus on transporting natural gas from various natural gas producing areas through connections with other pipeline systems, as well as through its Oasis pipeline and natural gas pipeline and storage assets. Its interstate transportation operations transports natural gas to the California border; and delivers natural gas from the east end of its system to Texas intrastate and Midwest markets. In addition, Energy Transfer Partners sells propane and propane-related products and services to residential, commercial, industrial, and agricultural customers. As of December 31, 2008, the company owned and operated approximately 14,600 miles of in service natural gas gathering and intrastate transportation pipelines, 3 natural gas processing plants, 11 natural gas treating facilities, 11 natural gas conditioning facilities, and 3 natural gas storage facilities located in Texas. Energy Transfer Partners GP, L.P. serves as its general partner of the company. Energy Transfer Partners, L.P. was founded in 2002 and is based in Dallas, Texas.

Gateway Energy Corporation, through its subsidiaries, owns and operates natural gas gathering, transportation, and distribution systems in Texas, Texas state waters, and in federal waters of the Gulf of Mexico off the Texas and Louisiana coasts. It gathers natural gas and liquid hydrocarbons from producing.. Read More

Genesis Energy, L.P. together with its subsidiaries operates in the midstream segment of the oil and gas industry in the Gulf Coast area of the United States. The company operates through four divisions: Pipeline Transportation, Refinery Services, Industrial Gases, and Supply and Logistics. The Pipeline.. Read More

Holly Energy Partners, L.P. operates a system of refined product and crude oil pipelines, storage tanks, and distribution terminals primarily in west Texas, New Mexico, Utah, and Arizona. As of December 31, 2008, the companys assets included approximately 820 miles of refined product pipelines that transport gasoline, diesel, and jet fuel in the metropolitan and rural areas of Texas, New Mexico, Arizona, Colorado, Utah, and northern Mexico; approximately 510 miles of refined product pipelines that transport refined products in Texas and Oklahoma; 2 parallel 65 mile pipelines that transport intermediate feed stocks and crude oil to refinery facilities; and approximately 860 miles of crude oil trunk, gathering, and connection pipelines that deliver crude oil to refineries. It also operated approximately 10 miles of crude oil and refined product pipelines; and had a 70% interest in Rio Grande Pipeline Company, a joint venture that owned a 249 mile refined product pipeline that transported liquid petroleum gases from west Texas to the Texas/Mexico border near El Paso for further transport into northern Mexico, as well as operated 10 refined product terminals, 2 refined product truck loading racks, a jet fuel terminal, and an onsite crude oil tankage. HEP Logistics Holdings, L.P. serves as general partner of the company. Holly Energy Partners was founded in 2004 and is based in Dallas, Texas.

Kinder Morgan Energy Partners, L.P. owns and manages energy transportation and storage assets in North America. Its Products Pipelines segment delivers gasoline, diesel fuel, jet fuel, and natural gas liquids to various markets through approximately 8,300 miles of refined petroleum products pipelines, and 60 associated product terminals and petroleum pipeline transmix processing facilities. The companys Natural Gas Pipelines segment gathers, transports, stores, processes, and sells natural gas through approximately 14,300 miles of natural gas transmission pipelines and gathering lines, as well as natural gas storage, treating, and processing facilities. Its CO2 segment produces and transports carbon dioxide through approximately 1,300 miles of pipelines to oil fields that use carbon dioxide to increase production of oil. It also owns and operates 10 oil fields, and a 450 mile crude oil pipeline system in west Texas. The companys Terminals segment transloads, stores, and delivers bulk, petroleum, petrochemical, and other liquids products through approximately 110 liquid and bulk terminal facilities; and approximately 45 rail transloading and materials handling facilities. Its Kinder Morgan Canada segment transports crude oil and refined petroleum through approximately 700 miles of common carrier pipelines to the interior of British Columbia; and to marketing terminals and refineries located in the greater Vancouver, British Columbia area and Puget Sound in Washington State, as well as consists of five associated product terminals. It also holds interests in an approximately 1,700 mile integrated crude oil pipeline connecting producers to refineries in the U.S. Rocky Mountain and Midwest regions, and a 25-mile aviation turbine fuel pipeline serving the Vancouver International Airport. Kinder Morgan G.P., Inc. serves as the general partner of the company. The company was founded in 1992 and is based in Houston, Texas.

Kinder Morgan Management, LLC operates as an energy transportation and storage company in North America. The company operates in five segments: Natural Gas Pipelines, Products Pipelines, CO2, Terminals, and Kinder Morgan Canada. The Natural Gas Pipelines segment gathers, transports, stores, treats, processes, and.. Read More

Magellan Midstream Partners, L.P., together with its subsidiaries, engages in the transportation, storage, and distribution of refined petroleum products in the United States. Its pipeline system transports petroleum products and liquefied petroleum gases from the Gulf Coast refining region of Texas through the Midwest to Colorado, North Dakota, Minnesota, Wisconsin, and Illinois. The company owns and operates marine terminals, which are storage and distribution facilities that handle refined petroleum products, blendstocks, ethanol, heavy oils, feedstocks, crude oils, and condensates, as well as inland terminals that consist of multiple storage tanks connected to third-party pipeline systems to deliver refined petroleum products transported on common carrier interstate pipelines. Its ammonia pipeline system transports ammonia from production facilities in Texas and Oklahoma to terminals in the Midwest. As of December 31, 2008 the company operated approximately 8,700-mile petroleum products pipeline system, including 49 petroleum products terminals; 7 petroleum products terminal facilities located along the United States Gulf and East Coasts; 27 petroleum products terminals located principally in the southeastern United States; and a 1,100-mile ammonia pipeline system serving the mid-continent region of the United States. It also provides ancillary services, such as heating, blending, and mixing of stored products and additive injection services. The companys customers include independent and integrated oil companies, wholesalers, retailers, railroads, airlines, and regional farm co-operatives. It serves various markets, including retail gasoline stations, truck stops, farm co-operatives, railroad fueling depots, and military and commercial jet fuel users. Magellan GP, LLC serves as the general partner of the company. The company was founded in 2000 and is based in Tulsa, Oklahoma.

NuStar Energy L.P. engages in the terminalling, storage, and transportation of petroleum products in the United States, the Netherland Antilles, Canada, Mexico, the Netherlands and the United Kingdom. It operations through the three segments: Storage, Transportation, and Asphalt and Fuels Marketing. The Storage.. Read More

NuStar GP Holdings, LLC owns general partner and limited partner interests in NuStar Energy L.P. that engages in the terminalling and storage of petroleum products, transportation of petroleum products, and marketing of anhydrous ammonia and asphalt, and fuels. The company holds 2% general partner interest, an.. Read More

ONEOK Partners, L.P. engages in the ownership and management of natural gas gathering, processing, storage, and interstate and intrastate pipeline assets, as well as natural gas liquids (NGLs) gathering and distribution pipelines, and storage and fractionators in the United States. The companys Natural Gas Gathering and Processing segment gathers and processes unprocessed natural gas produced from crude oil and natural gas wells located in the Mid-Continent region. It also gathers unprocessed natural gas in the Williston Basin, which spans portions of Montana, North Dakota, and the Canadian province of Saskatchewan; and the Powder River Basin of Wyoming. Its Natural Gas Pipelines segment primarily operates regulated interstate and intrastate natural gas transmission pipelines, natural gas storage facilities, and non-processable natural gas gathering facilities. The company transports natural gas through FERC-regulated interstate natural gas pipelines in Montana, North Dakota, South Dakota, Minnesota, Wisconsin, Iowa, Illinois, Indiana, Kentucky, Tennessee, Oklahoma, Texas, and New Mexico, as well as transports intrastate natural gas through its assets in Oklahoma. This segment also owns storage capacity in underground natural gas storage facilities in Oklahoma, Kansas, and Texas. Its Natural Gas Liquids Gathering and Fractionation segment gathers, treats, and fractionates NGLs produced by natural gas processing plants; and stores and markets NGL products. The companys Natural Gas Liquids Pipelines segment owns and operates FERC-regulated interstate natural gas liquids gathering and distribution pipelines, which deliver unfractionated NGLs and NGL products to the natural gas liquids market hubs. ONEOK Partners GP serves as the general partner of the company. The company was formerly known as Northern Border Partners, L.P. and changed its name to ONEOK Partners, L.P. in 2006. ONEOK Partners, L.P. was founded in 1993 and is based in Tulsa, Oklahoma.

Plains All American Pipeline, L.P., through its subsidiaries, engages in the transportation, storage, terminalling, and marketing of crude oil, refined products, and liquefied petroleum gas and other natural gas-related petroleum products (LPG) in the United States and Canada. It operates in three segments:.. Read More

Regency Energy Partners LP engages in the gathering, processing, contract compression, marketing, and transportation of natural gas and natural gas liquids (NGLs). It operates in three business segments: Gathering and Processing, Transportation, and Contract Compression. The Gathering and Processing segment provides wellhead-to-market services to the producers of natural gas, including transporting raw natural gas from the wellhead through gathering systems, processing raw natural gas to separate NGLs from the raw natural gas, and selling or delivering the pipeline-quality natural gas and NGLs to various markets and pipeline systems. The Transportation segment delivers natural gas from northwest Louisiana to markets in northeast Louisiana through the companys 320-mile regency intrastate gas pipeline system. The Contract Compression segment provides turn-key natural gas compression services, as well as designs, sources, owns, insures, installs, operates, services, repairs, and maintains compressors and related equipment for land and water installations. The company provides its services through systems located in Louisiana, Texas, Arkansas, Kansas, and Oklahoma. Regency Energy Partners LP was founded in 2003 and is based in Dallas, Texas.

Spectra Energy Corp, through its subsidiaries and equity affiliates, engages in the ownership and operation of a portfolio of complementary natural gas-related energy assets. The company operates in four segments: U.S. Transmission, Distribution, Western Canada Transmission and Processing, and Field Services. The.. Read More

Spectra Energy Partners, LP operates as an investment arm of Spectra Energy Partners GP, LLC . Spectra Energy Partners, LP, through its subsidiaries, engages in the transportation of natural gas through interstate pipeline systems, and the storage of natural gas in underground facilities in the United States. As.. Read More

Sunoco Logistics Partners L.P. engages in the transport, terminalling, and storage of refined products and crude oil, as well as the purchase and sale of crude oil in the United States. Its Eastern Pipeline System segment owns and operates approximately 1,650 miles of refined product pipelines that transport gasoline, heating oil, diesel and jet fuel, liquefied petroleum gas, refining feedstocks, and other hydrocarbons from refineries in Pennsylvania, Ohio, and New Jersey, as well as from third party locations. This segment also includes approximately 140 miles of crude oil pipelines; and various joint venture interests in refined product pipeline companies. The companys Terminal Facilities segment consists of 36 refined product terminals with an aggregate storage capacity of 6.2 million barrels, primarily serving the Eastern Pipeline System; the Nederland Terminal, a 14.7 million barrel marine crude oil terminal on the Texas Gulf Coast; a 2.0 million barrel refined product terminal serving Sunocos Marcus Hook refinery near Philadelphia, Pennsylvania; 1 inland and 2 marine crude oil terminals with a combined capacity of 3.4 million barrels, and related pipelines that serve Sunocos Philadelphia refinery; a ship and barge dock, which serves Sunocos Eagle Point refinery; and a 1.0 million barrel liquefied petroleum gas terminal near Detroit, Michigan. Its Western Pipeline System segment gathers, purchases, sells, and transports crude oil principally in Oklahoma and Texas. This segment also consists of approximately 3,200 miles of crude oil trunk pipelines; approximately 110 crude oil transport trucks; approximately 120 crude oil truck unloading facilities; a 55.3% interest in the Mid-Valley Pipeline Company, a joint venture that owns a 994-mile pipeline; and a 43.8% interest in West Texas Gulf Pipe Line Company, a joint venture that owns a 579-mile crude oil pipeline. The company was founded in 2001 and is based in Philadelphia, Pennsylvania.

Targa Resources Partners LP, together with its subsidiaries, engages in gathering, compressing, treating, processing, and selling natural gas. The company also engages in fractionating and selling natural gas liquids (NGLs) and NGL products. It operates in the Fort Worth Basin/Bend Arch in north Texas, the Permian Basin of west Texas, and in southwest Louisiana. The companys North Texas System includes a network of approximately 4,000 miles of pipelines that gather wellhead natural gas for the Chico and Shackelford natural gas processing facilities. Its San Angelo Operating Unit System covers approximately 4,000 square miles in west Texas, including approximately 1,350 miles of pipeline in the Permian Basin of west Texas; and the Mertzon, Sterling, and Conger processing plants in west Texas. The companys the Louisiana Operating Unit System comprises approximately 850 miles of gathering system pipelines, covering approximately 3,800 square miles in southwest Louisiana between Lafayette and Lake Charles, the Gillis and Acadia processing plants, and an intrastate pipeline system. Targa Resources GP LLC serves as the general partner of the company. The company was founded in 2006 and is based in Houston, Texas. Targa Resources Partners LP is a subsidiary of Targa Resources, Inc.

TC PipeLines, LP, together with its subsidiaries, transports natural gas from the western Canada Sedimentary Basin (WCSB) to various downstream markets in the United States. It owns a 46.45% general partner interest in Great Lakes Gas Transmission Limited Partnership (Great Lakes), which owns a 2,115 miles.. Read More

TransMontaigne Partners L.P. operates as a terminaling and transportation company. It provides integrated terminaling, storage, transportation, and related services for customers engaged in the distribution and marketing of light refined petroleum products, heavy refined petroleum products, crude oil, chemicals,.. Read More

Western Gas Partners, LP engages in the acquisition, ownership, development, and operation of midstream energy assets in East and West Texas, the Rocky Mountains, and the Mid-Continent. The company involves in gathering, compressing, treating, and transporting natural gas for its ultimate parent, Anadarko.. Read More

The Williams Companies, Inc., through its subsidiaries, engages in the production, gathering, processing, and transportation of natural gas in the United States. The company operates in four segments: Exploration and Production, Gas Pipeline, Midstream Gas and Liquids, and Gas Marketing Services. The Exploration.. Read More