Houston, TX – July 11, 2007 - AVEVA (LSE: AVV), the leading supplier of engineering IT systems for the plant and marine industries, today announced that Chevron have selected AVEVA to provide and implement its AVEVA NET Portal solution to manage critical information for the operation of Agbami, which when completed will be the largest FPSO in the world.

Located 70 miles offshore Nigeria, the Agbami FPSO will produce 250,000 barrels of oil per day. The FPSO will inject water and associated gas for reservoir pressure management. It will also be equipped with the latest environmental protection technology.

When operational, the FPSO will be managed from the Chevron offices in Lekki, Nigeria. The design and engineering work will be coordinated over a number of sites internally in Nigeria, with specialist contractors internationally and with the Agbami FPSO itself. Utilizing AVEVA NET Portal, information is continually updated on the master hub and then synchronized with the replicated data onboard the FPSO which will include P&IDs, the 3D ship/facility model, documents, and other information ensuring that reliable and accurate data is available online at any time during operation.

AVEVA NET Portal is a web-enabled solution for the integration and collaborative use of all engineering information. 3D models, schematics, documents and data from any application can be accessed and navigated in context, with full intelligence, without needing the source application that originally created the data. Based on ISO15926 and XML technology it provides a fully flexible and easy-to-implement solution for the management of engineering data across the lifecycle of a project. AVEVA NET portal reduces the time it takes to find information, increases quality and consistency of data, and makes the information accessible across all stakeholders on a global basis, reducing risks and costs in the design, build and operation of large capital engineering projects.

About Chevron in Nigeria
Chevron is guided by the vision of being the energy company most admired for its people, partnership and performance. In the pursuit of this vision, Chevron has developed programs that foster sustainable development in all facets of the Nigerian society. This includes the development of “Nigerian Content” to encourage the participation of Nigerian service providers and suppliers in the oil and gas industry. Participating in the Agbami Engineering Portal project is a Nigerian Engineering Services company called “Lonadek”. Lonadek is the agent for AVEVA in Nigeria and provides training and support for AVEVA applications sold throughout Nigeria. Lonadek will be responsible for aspects of the delivery of the Agbami Engineering Portal system as well as on-going support after it goes into operation in 2008.

About AVEVA Group plc
AVEVA Group plc is one of the world’s foremost and fastest-growing lifecycle engineering IT solutions and services providers to the oil and gas, paper and pulp, power, chemical, pharmaceutical and shipbuilding industries. The Group reported pre-tax profits for the year ended March 2007 of GBP 24.7 million on revenues of GBP 94.9 million. The Group has grown consistently since 1967 on the strength of pioneering engineering technology that protects the information assets of its customers from the volatile nature of the IT industry.

The Group's history of innovation spans five decades and has produced most of today's major engineering IT technologies. Serving over 1600 clients, AVEVA has a dominant position in many market sectors both on and offshore. In May 2004, the Group acquired Tribon Solutions AB, the market-leading shipbuilding solution company and now serves 85% of the world's top 20 shipbuilders.

The Group's clients include leading plant owner operators, shipbuilders and engineering contractors such as Aibel, Aker Kvaerner, ALSTOM Power, Andritz, Areva NP, BAE Systems, BASF, BP, CB&I, Chevron, China National Nuclear, CNOOC Offshore Oil Engineering, Daewoo Shipbuilding & Marine Engineering, ExxonMobil, Hyundai Heavy Industries, Jacobs, Mitsubishi Heavy Industries, Petrofac, Product Services Network (PSN), SBM, Shell, Sinopec Engineering, SNC Lavelin, TKMS – Thyssen Krupp Marine System, Uhde, VT Shipbuilding, Wood Group (Alliance & Mustang) and Worley Parsons.

Headquartered in Cambridge, England, AVEVA Group plc and its operating subsidiaries currently employ more than 700 staff worldwide with offices in England, Australia, Canada, China, France, Germany, Hong Kong, India, Italy, Japan, Malaysia, Mexico, Norway, Russia, Saudi Arabia, Singapore, Sweden, South Korea and the USA.