Approximately 500 million tons of coal swaps are priced
against the API 2 index each year.

"
Credit risk has emerged as a key concern limiting the growth of liquidity
in OTC energy commodity markets.
http://www.

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Argus Media has offices in Houston, New York,
Washington, Singapore, Tokyo , Beijing, Moscow and in other key centres of the
energy industry, and is headquartered in London . Argus assessments are the framework upon which
many deals are transacted in the global energy markets . The availability of exchange-based clearing
of OTC contracts, under which NYMEX becomes the counterparty , and using
established Argus benchmarks as a price reference, is expected to encourage
further trading and deepen liquidity in many markets.

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About Argus Media
Argus Media is a leading provider of price assessments, business
intelligence and market data on the global oil, gas, electricity , coal,
emissions and transportation industries.

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About Argus
Argus Media is the leading independent provider of price assessments,
business intelligence and market data on the global crude oil, refined
products, LPG, gas, electricity, coal, emissions and transportation
industries . Argus Media was founded in
1970, and is a privately held UK-registered publishing company.
"Argus has emerged as the standard price reference in the NW Europe
wholesale and derivatives market for gasoline," said NYMEX President James E. Argus also has offices
in Houston, Washington , Singapore, Tokyo, Beijing, Moscow and in other key
centers of the energy industry.

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34TWh of power over the deal's lifetime.
"As NYMEX expands its business into Europe, Argus' strong position in
international refined products and crude assessments should provide the
industry with a familiar price reference for clearing and trading and
complement the NYMEX Dublin Brent contract launched in November 2004," said
Adrian Binks, Managing Director of Argus, the world's largest privately held
energy markets publisher.

greenhouse marketplaces

The confidence of the international energy industry in
the quality of Argus reporting and its ethical standards has led to the
increasing use of Argus prices as a benchmark by market participants in
physical and swaps contracts.
Through a combination of open outcry floor trading and the NYMEX ACCESS(R) and
NYMEX ClearPort(R) electronic trading platforms, a wide range of crude oil,
petroleum product, natural gas, coal, electricity, gold, silver, copper,
aluminum , and platinum group metals markets are available virtually 24 hours
each day.

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The Argus/McCloskey API 2 index used to price the contract is the average
of the Argus delivered price in Rotterdam and McCloskey's northwest European
steam coal price.argusonline. "Strategically, NYMEX is well positioned for the next set of markets
to emerge as new sources of price volatility need to be managed around the
globe.

crude commodity

It is the largest independent energy publisher in the world with
over 150 employees .
Argus Media is an industry leader in global market coverage of crude oil,
refined products , power, gas, coal, emissions, and transportation.

About New York Mercantile Exchange
The New York Mercantile Exchange is the largest physical commodity
exchange in the world, offering futures and options trading in energy and
metals contracts and clearing services for off-exchange energy transactions.
For further information contact: Miles Weigel in Washington,
tel +1 202 775 0240 or Seana Lanigan in London, tel +44 20 7704 4773,
email enquiries@argusmediagroup.

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com .

nationally crude

To gain greater coal exposure, Centrica expects to look at
power offtake, tolling or possible equity options.

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The deal is Centrica's first coal-indexed power purchase and represents
the first step in the company's strategy to increase the link between input
costs and coal pricing.

Learn more at http://www.

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LONDON, Centrica plc, the UK's largest household
energy supplier signed a power supply contract last Thursday based on the
Argus/McCloskey API 2 coal index, as part of its aim to further increase
diversity in its power portfolio. The power will be used to supply
British Gas, which is the UK's largest domestic electricity supplier with over
6mn electricity customers.com

NYMEX Lists Argus Media Energy Prices

The addition of Argus data to the Exchange will be a strong asset to
both organizations.

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, (NYMEX) and Argus Media announced today that the Exchange has
licensed access to Argus' worldwide energy market price assessments for use in
the clearing and trading of energy commodities through NYMEX ACCESS(R), its
after-hours electronic trading system, and NYMEX ClearPort(R) its electronic
trading and clearing platform.

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Argus'
reporting and its ethical standards has led to the increasing use of Argus
prices as a benchmark by major market participants in physical and swaps
contracts. NYMEX's decision to include Argus pricing further cements Argus'
role as a key benchmark in the world's biggest trading hubs. It is the largest independent energy
publisher in the world and is headquartered in London.

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Under the terms of the three year contract, independent generator
International Power will supply 250MW of peak power from October , amounting to
2.

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E-commerce marketplaces facilitate interactions and transactions between buyers and sellers within the energy and utility industries.

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com

For more information, contact:
Seana Lanigan
Argus Media
+44 20 7704 4773
+44 771 891 8736
slanigan@argusmediagroup .com

watt apb

argusmediagroup.

commodity emissions

Centrica Buys Argus-Indexed UK Power

greenhouse interactions

Although Centrica receives around a quarter of its
gas requirements from its own production, it remains a large net buyer, and is
continuing to focus on meeting its energy procurement requirements from a
range of sources . NEW YORK and LONDON, The New York Mercantile
Exchange, Inc.
The addition of Argus pricing to NYMEX ClearPort will allow the Exchange's
clients to bridge their business into the over-the-counter (OTC) markets where
Argus is the established benchmark, including European crude oil and products ,
US emissions and coal and US Gulf crude oil.

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Newsome. Argus Media was founded in 1970, and is a
privately held UK-registered publishing company.