Release Details

Six-year license agreement extends BP's commitment to AspenTech's engineering solutions as a global technology standard across its exploration & production, refining and aromatics & acetyls business units

CAMBRIDGE, Mass.--(BUSINESS WIRE)--May 29, 2007--Aspen Technology, Inc. (Nasdaq: AZPN) today announced a six-year license agreement with BP for the aspenONE Process Engineering application suite. The new agreement extends BP's commitment to AspenTech's engineering solutions for process simulation, design and performance optimization across its Exploration & Production, Refining and Aromatics & Acetyls businesses. The company uses the applications to optimize the design and efficiency of production processes at new plants and in existing facilities worldwide.

"BP intends to continue its use of the AspenTech Engineering software," said Paul Maslin, Technology Vice President at BP. "Over the past few years this technology has delivered significant value in many areas of our business to improve operational efficiency and provide assurance on design of new plant."

The aspenONE Process Engineering suite is an integrated set of applications which enables engineers to enhance the speed and consistency of their simulation, costing and sizing activities, thereby delivering increased productivity and improved design quality. By providing insights into plant and equipment behavior for optimal decision-making, the applications help companies to reduce capital and operating costs, and increase engineering efficiency and quality.

"BP's continuing commitment to our aspenONE engineering solutions is a reflection of the value that these integrated applications can deliver to leading process companies throughout the plant lifecycle," said Manolis Kotzabasakis, Senior Vice President, AspenTech. "Our aspenONE Process Engineering application suite helps companies streamline their engineering workflows and establish best practices across their organization based on consistent data and processes."

License revenue from this transaction was recognized in AspenTech's fiscal quarter ended December 31, 2006.

About BP

BP is one of the world's largest oil and gas companies, serving about 13 million customers every day in more than 100 countries across six continents. Its business segments are Exploration and Production; Refining and Marketing; and Gas, Power and Renewables. BP has around 97,000 employees and is a leader in the energy industry, committed to operating responsibly and to taking action on wider issues, most notably climate change.

About AspenTech

AspenTech is a recognized expert and leading provider of award-winning process optimization software and services. AspenTech's integrated aspenONE solutions enable manufacturers to reduce costs, increase capacity, and optimize operational performance end-to-end throughout the engineering, plant operations, and supply chain management processes, resulting in millions of dollars in cost savings. For more information, visit www.aspentech.com.

(C) 2007 Aspen Technology, Inc. AspenTech, aspenONE and the Aspen leaf logo are trademarks of Aspen Technology, Inc. All rights reserved.

CONTACT: Aspen Technology
Elisa Logan, 617-949-1398
elisa.logan@aspentech.com
or
Lois Paul & Partners (for Aspen Technology)
Michael Parker, 781-782-5714
aspentech@lpp.com

SOURCE: Aspen Technology