AGL Resources Inc (ATG)
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Distributors of natural gas, providing service through six utilities, two gas storage facilities and an asset management company. We are a Fortune 1000 company that ranks No. 40 in the Fortune gas and utilities sector.
Atmos Energy Corp (ATO)
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Atmos Energy, the largest pure natural gas distributor in the United States, delivers natural gas to 3.2 million residential, commercial, industrial, agricultural and public-authority customers. Our regulated utility services are provided to more than 1,600 communities in 12 states.
Canada Energy Partners Inc. (TSX: CE)
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Canada Energy Partners Inc., is an independent coalbed methane , and conventional natural gas exploration and development company focusing on northeast British Columbia.
Chesapeake Utilities Corp (CPK)
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The Dover Gas Light Company, formed in 1859, would eventually become Chesapeake Utilities Corporation, even though the Company wasn’t officially incorporated in the State of Delaware until 88 years later in 1947. Today, the Company consists of four primary business segments: Natural gas distribution, transmission and marketing; propane distribution and wholesale marketing; advanced information systems; and other services.
CMS Energy Corp (CMS)
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CMS Energy's business strategy is focused primarily on its principal subsidiary, Consumers Energy, an electric and natural gas utility serving about 6.5 million of Michigan's 10 million residents. With its CMS Enterprises subsidiary, CMS Energy also is engaged in independent power generation in several states.
Corning Natural Gas Corp (CNIG)
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Corning Natural Gas Corporation is a local gas distribution company that provides natural gas, transportation, storage and other unbundled energy services.
Crosstex Energy Inc (XTXI)
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Crosstex Energy Inc., owns pipeline and plant facilities in several key regions, which directly link wellhead supplies to our customers. Engaged in midstream natural gas business providing gas gathering, treating, processing, transmission, distribution, supply and marketing, as well as crude oil marketing.
Delta Natural Gas Company Inc. (DGAS)
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Delta Natural Gas Company Inc., distributes, stores, transports, gathers, produces natural gas. Started in 1949; growth through expansion and acquisitions.
El Paso Corp (EP)
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We provide natural gas and related energy products in a safe, efficient, and dependable manner. We are organized around two core businesses—pipelines and exploration and production. We own North America’s largest interstate natural gas pipeline system—approximately 43,000 miles—transporting approximately a quarter of the natural gas consumed in the country each day.
Energen Corp (EGN)
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Energen Corporation is a diversified energy company focused on its growing oil and gas exploration and production business and its strong, stable natural gas utility.
EnergySouth Inc (ENSI)
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EnergySouth is a holding company for a family of energy businesses. Natural gas distribution and midstream services are the company's primary lines of business.
Equitable Resources Inc. (EQT)
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Equitable Resources, Inc., is an integrated energy company with emphasis on Appalachian area natural gas supply, transmission and distribution.
Eastern American Natural Gas Trust (NGT)
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The trust receives royalty interests from 650 natural gas wells located in West Virginia and Pennsylvania and operated by Eastern American Energy.
Falcon Natural Gas Corp (FNGC)
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Falcon Natural Gas Corporation focuses its efforts on making significant commercial hydrocarbon discoveries in North America for connection to the existing natural gas production infrastructure.
Gasco Energy Inc. (GSX)
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Gasco Energy Inc., is a rapidly growing independent oil and gas company focused on building shareholder value through the development of large natural gas deposits.
Hong Kong and China Gas ADR New (HOKCY)
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The Hong Kong and China Gas Company Limited is engaged in production, distribution and marketing of gas, water and related activities in Hong Kong and the People’s Republic of China.
The Laclede Group Inc. (LG)
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The Laclede Group, Inc. is a public utility holding company committed to providing reliable natural gas service through its regulated core utility operations while engaging in non-regulated activities that provide opportunities for sustainable growth.
MDU Resources Group Inc. (MDU)
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Fidelity Exploration & Production Company, a subsidiary of MDU Resources Group, Inc., engages in natural gas and oil production, production, development and production activities primarily in the Rocky Mountain and Mid-Continent regions of the United States and in and around the Gulf of Mexico.
MetroGas SA (MGS)
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MetroGAS heats up the Buenos Aires metropolitan area. Argentina's largest natural gas distributor serves more than 1.9 million customers -- about 25% of the country's gas market.
National Fuel Gas Co (NFG)
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The utility segment, which represents the operations of National Fuel Gas Distribution Corporation, sells or transports natural gas to nearly 731,000 customers in western New York and northwestern Pennsylvania.
New Jersey Resources Corp (NJR)
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New Jersey Resources, provides reliable retail and wholesale energy services to customers in New Jersey and in states from the Gulf Coast to New England, and Canada. Its principal subsidiary, New Jersey Natural Gas (NJNG), is one of the fastest-growing local distribution companies in the United States, serving more than 478,000 customers in central and northern New Jersey.
Nicor Inc. (GAS)
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The corporation's largest subsidiary, Nicor Gas, was founded in 1954 as Northern Illinois Gas and today is one of the largest natural gas distribution companies in the country, serving more than two million customers in 641 communities.
Northwest Natural Gas Co (NWN)
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Northwest Natural Gas Company engages in the distribution and sale of natural gas in Oregon and southwest Washington.
NorthWestern Corp (NWEC)
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Our utility operations consist of regulated electric and natural gas distribution, transmission, energy supply and nonregulated electric operations.
Oneok Inc. (OKE)
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ONEOK is a diversified energy company and the sole general partner of ONEOK Partners, one of the largest publicly traded limited partnerships. It is among the largest natural gas distributors in the United States and its energy services operation focuses primarily on marketing natural gas and related services throughout the U.S.
Pacific Northern Gas Ltd. (TSX: PNG)
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Pacific Northern Gas Ltd delivers natural gas to customers in west-central British Columbia, and through its subsidiary Pacific Northern Gas Ltd., to customers in the province's northeast.
Piedmont Natural Gas Company Inc. (PNY)
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Piedmont Natural Gas is an energy services company primarily engaged in the distribution of natural gas to one million residential, commercial and industrial utility customers in North Carolina, South Carolina and Tennessee, including 62,000 customers served by municipalities who are wholesale customers.
Questar Corp (STR)
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Questar Corporation is a natural gas-focused energy company with four major lines of business conducted through three principal subsidiaries — Questar Market Resources (gas and oil exploration, development and production; gas gathering and processing); Questar Pipeline (interstate gas transportation and storage); and Questar Gas (retail gas distribution).
RGC Resources Inc. (RGCO)
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RGC Resources, Inc., through its subsidiaries, distributes and sells natural gas in Virginia. The company distributes natural gas primarily to residential, commercial, and industrial users through underground mains and services.
Sempra Energy (SRE)
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Sempra Energy was created in 1998 by a merger of parent companies of two long-established, and highly respected, investor-owned utilities with rich histories dating back more than 100 years.
South Jersey Industries Inc. (SJI)
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South Jersey Industries is an energy services holding company. Subsidiaries include South Jersey Gas, South Jersey Energy Service Plus, South Jersey Energy, Marina Energy and South Jersey Resources Group.
Southern Union Co (SUG)
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Southern Union Company is engaged primarily in the transportation, storage, gathering, processing and distribution of natural gas.
Southwest Gas Corp (SWX)
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Southwest Gas Corporation is principally engaged in the business of purchasing, transporting and distributing natural gas to residential, commercial and industrial customers in the southwestern United States.
Tidelands Oil and Gas Corp (TIDE)
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Tidelands Oil & Gas Corporation, based in San Antonio, Texas, develops and operates mid-stream oil and gas projects including natural gas pipeline infrastructure, retail natural gas liquids (NGL) sales, and natural gas receiving and storage facilities.
TransCanada Corp (TRP)
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TransCanada is one of the largest natural gas storage providers in North America with approximately 360 Bcf of storage capacity.
UGI Corp (UGI)
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Wholly owned UGI Utilities, Inc. distributes natural gas to more than 478,000 customers and provides electric service to nearly 62,000 customers in eastern and northeastern Pennsylvania.
Vectren Corp (VVC)
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Vectren Corporation, a progressive energy-holding company headquartered in Evansville, Ind., delivers gas and/or electricity to more than one million utility customers in Indiana and Ohio.
Vero Energy Inc. (TSX: VRO)
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Vero Energy Inc. is a Calgary based, growth oriented company engaged in the exploration, development and production of natural gas, natural gas liquids and oil in Western Canada.
WGL Holdings Inc (WGL)
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Washington Gas, our leading subsidiary, has provided safe, reliable natural gas service to customers in the D.C. area for nearly 160 years and, today, serves more than one million customers in the District of Columbia, Maryland and Virginia.
Williams Companies Inc. (WMB)
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Williams produces enough natural gas for more than 4 million homes per day. Our reserves are located in prolific producing areas like the Barnett Shale in northeast Texas.
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DID
YOU KNOW?
Natural gas is a gaseous fossil fuel consisting primarily of methane but including significant quantities of ethane, butane, propane, and pentane—heavy hydrocarbons removed later on as condensate—as well as carbon dioxide, nitrogen, helium and hydrogen sulfide. It is found in oil fields (associated) either dissolved or isolated in natural gas fields (non associated), and in coal beds (as coalbed methane). When methane-rich gases are produced by the anaerobic decay of non-fossil organic material, these are referred to as biogas. Sources of biogas include swamps, marshes, and landfills (see landfill gas), as well as sewage sludge and manure by way of anaerobic digesters, in addition to enteric fermentation particularly in cattle. Since natural gas is not a pure product, when non associated gas is extracted from a field under supercritical (pressure/temperature) conditions, it may partially condense upon isothermic depressurizing--an effect called retrograde condensation. The liquids thus formed may get trapped by depositing in the pores of the gas reservoir. One method to deal with this problem is to reinject dried gas free of condensate to maintain the underground pressure and to allow reevaporation and extraction of condensates. Natural gas is often informally referred to as simply gas, especially when compared to other energy sources such as electricity. Before natural gas can be used as a fuel, it must undergo extensive processing to remove almost all materials other than methane. The by-products of that processing include ethane, propane, butanes, pentanes and higher molecular weight hydrocarbons, elemental sulfur, and sometimes helium and nitrogen.
Quantities of natural gas are measured in normal cubic meters (corresponding to 0°C at 101.325 kPaA) or in standard cubic feet (corresponding to 60°F and 14.73 PSIA). The gross heat of combustion of one normal cubic meter of commercial quality natural gas is around 39 megajoules (≈10.8 kWh), but this can vary by several percent. In US units, one standard cubic foot of natural gas produces around 1,030 British Thermal Units (BTUs). The actual heating value when the water formed does not condense is the net heat of combustion and can be as much as 10% less.
The price of natural gas varies greatly depending on location and type of consumer, but as of 2007 a price of $7 per 1000 cubic feet is typical in the United States. This corresponds to around $7 per million BTU's, or around $7 per gigajoule. Natural gas in the United States is traded as a futures contract on the New York Mercantile Exchange. Each contract is for 10,000 MMBTU (gigajoules), or 10 billion BTU's. Thus, if the price of gas is $7 per million BTU's on the NYMEX, the contract is worth $70,000. In the United States, at retail, natural gas is often sold in units of therms (th); 1 therm = 100,000 BTU. Gas meters measure the volume of gas used, and this is converted to therms by multiplying the volume by the energy content of the gas used during that period, which varies slightly over time. Wholesale transactions are generally done in decatherms (Dth), or in thousand decatherms (MDth), or in million decatherms (MMDth). A million decatherms is roughly a billion cubic feet of natural gas.
Natural gas is also traded as a commodity in Europe, principally at the United Kingdom NBP and related European hubs, such as the TTF in the Netherlands.
In the rest of the world, LNG and LPG is traded in metric tons or mmBTU as spot deliveries. Long term contracts are signed in metric tons - and to convert from one system to the other requires should better be described here, than a very isolated market. A cubic foot is a volumetric measure, MT is weight. The LNG and LPG is transported by special ships/containers, as the gas is liquified - LPG cryonic. The specification of each LNG/LPG cargo will usually contain the energy content, but this information is in general not available to the public.
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