CSC SIGNS $53 MILLION IT SERVICES AGREEMENT WITH GLOBAL OIL/GAS COMPANY

News Release -- February 26, 2009

FALLS CHURCH, Va., Feb. 26 -- CSC (NYSE: CSC) announced today that it has signed a five-year, $53 million information technology (IT) services contract with BHP Billiton Petroleum.

Under the agreement, CSC will manage global IT operations for BHP Billiton Petroleum, which is headquartered in Houston, Texas, and has operations and offices in approximately 10 countries. The contract covers enterprise-wide infrastructure, which includes help desk, desktop, midrange, network, high-performance computing and telecommunications services, as well as applications management.

"This contract award underscores the breadth and depth of our experience supporting energy industry corporations and our ability to adapt to our clients' changing business needs," said CSC Chairman, President and Chief Executive Officer Michael W. Laphen. "We have supported BHP Billiton for several years and adjusted our solution and client engagement model to address the company's new decentralized approach to IT. We look forward to our new relationship with Petroleum and delivering services closely aligned to its specific goals and objectives."

"We are pleased to expand our existing relationship with CSC in signing this new contract," said Zhanna Golodryga, BHP Billiton Petroleum vice president and chief information officer. "The agreement provides scalable services to Petroleum and will enhance the IT experience for our users."

CSC has provided IT support services to various organizations within BHP Billiton for the past eight years.

About BHP Billiton Petroleum

BHP Billiton is the world's largest diversified resources company, with a portfolio of high-quality, long-life assets and a significant pipeline of growth projects. BHP Billiton employs approximately 39,000 people in more than 100 locations in 25 countries across the world and is headquartered in Melbourne, Australia. BHP Billiton Petroleum is a substantial oil and gas exploration and production business. Its principal activities are oil and natural gas exploration, development, production and marketing. For more information about BHP Billiton Petroleum go to: http://petroleum.bhpbilliton.com.

About CSC

CSC is a global leader in providing technology-enabled solutions and services through three primary lines of business. These include Business Solutions & Services, Global Outsourcing Services and the North American Public Sector. CSC's advanced capabilities include systems design and integration, information technology and business process outsourcing, applications software development, Web and application hosting, mission support and management consulting. Headquartered in Falls Church, Va., CSC has approximately 92,000 employees and reported revenue of $17.1 billion for the 12 months ended Jan. 2, 2009. For more information, visit the company's Web site at www.csc.com.