As early as 1993, Prebon Yamane entered the energy markets in North America as a means of expanding and diversifying our traditional financial product base. From our beginnings in brokering physical natural gas, we quickly transferred our expertise in derivatives to enter the natural gas swaps, options and exotic markets.

Today, Prebon Energy is the global leader in natural gas brokerage, providing over 400 marketers, producers and institutions with a single, comprehensive source for price information, liquidity, market intelligence and innovation in an extensive range of both physical and financially-based gas products.

We have more than 30 natural gas brokers based in North America. In addition, our office in London covers the UK and rapidly developing European market.

Prebon Energy consistently receives top recognition as a Natural Gas Broker in Energy Power and Risk annual Rankings: • European Natural Gas Swaps: #1 in 2002 • European Natural Gas Options: #1 in 2002 • North American Natural Gas Basis Swaps: #2 in 2000, 2001 • North American Natural Gas Basis Options: #2 in 2000, 2001 • UK Gas Swaps: #2 in 2000, 2001, 2002 • UK Gas Options: #2 in 2000, 2001, 2002 • Swaps, Western US: #2 in 2003 • Swaps, Northeastern US: #2 in 2003 • Swaps, Eastern Canada: #1 in 2003 • Options, Gulf of Mexico: #2 in 2003 Natural Gas Products • Location Basis Swaps • Index for Physical • NYMEX Options • Location Options (Fixed Price and Basis) • Exotic Options • NYMEX Swaps (Near Term & Long Term) New Jersey Don Tencellent Prebon Energy Inc. 101 Hudson Street Jersey City, NJ 07302 T +201 557 5440 F +201 557 5025 Dtencellent@prebon.com London Daniel Simpson Prebon Energy A division of Prebon Marshall Yamane (UK) Limited 155 Bishopsgate, London EC2M 3DA T +44 20 7200 7055 F +44 20 7200 7277 Daniel.Simpson@prebon.co.uk