Press Release

HOUSTON (September 25, 2017) KBR, Inc. (NYSE: KBR) announced today its global Government Services business, KBRwyle, has won a seat on the NASA Research, Engineering, Mission Integration Services (REMIS) contract to provide research and engineering products and services for the International Space Station (ISS). NASA's Johnson Space Center awarded this contract, which has a five-year base period and a two-year option with a maximum ceiling value of $500 million.

Under this multi-award contract, KBRwyle will have the opportunity to compete on task orders to support NASA's ISS Program and potentially other NASA organizations and federal government agencies.

KBRwyle may provide spaceflight and ground hardware and software development, engineering function sustainment, engineering services, payload facility integration assistance, and research mission integration and operations services. The company will primarily perform this work at NASA's Johnson Space Center.

"KBRwyle has a history of solving the challenges of human spaceflight, pioneering breakthroughs in microgravity research, and providing innovative engineering and technical solutions to NASA," said Stuart Bradie, KBR President and CEO. "We are proud to continue this legacy supporting NASA and the International Space Station."

KBRwyle has supported the ISS for more than 16 years. As the number one life sciences provider to NASA, the company has been engaged in a broad range of human spaceflight activities for NASA for almost five decades. KBRwyle has worked with every U.S. astronaut since 1968, including record-breaking astronaut Dr. Peggy Whitson. The company has also supported 135 Space Shuttle missions and seven NASA human spaceflight programs beginning with Gemini.

Expected revenue associated with this project will be booked into backlog of unfilled orders for KBR's Government Services Business Segment as task orders are awarded.About KBR, Inc.

KBR is a global provider of differentiated professional services and technologies across the asset and program life cycle within the Government Services and Hydrocarbons sectors. KBR employs over 34,000 people worldwide (including our joint ventures), with customers in more than 80 countries, and operations in 40 countries, across three synergistic global businesses:

• Government Services, serving government customers globally, including capabilities that cover the full life-cycle of defense, space, aviation and other government programs and missions from research and development, through systems engineering, test and evaluation, program management, to operations, maintenance, and field logistics
• Technology & Consulting, including proprietary technology focused on the monetization of hydrocarbons (especially natural gas and natural gas liquids) in ethylene and petrochemicals; ammonia, nitric acid and fertilizers; oil refining; gasification; oil and gas consulting; integrity management; naval architecture and proprietary hulls; and downstream consulting
• Engineering & Construction, including onshore oil and gas; LNG (liquefaction and regasification)/GTL; oil refining; petrochemicals; chemicals; fertilizers; differentiated EPC; maintenance services (Brown & Root Industrial Services); offshore oil and gas (shallow-water, deep-water, subsea); floating solutions (FPU, FPSO, FLNG & FSRU) and program management

KBR is proud to work with its customers across the globe to provide technology, value-added services, integrated EPC delivery and long term operations and maintenance services to ensure consistent delivery with predictable results. At KBR, We Deliver.

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Forward Looking Statement

The statements in this press release that are not historical statements, including statements regarding future financial performance, are forward-looking statements within the meaning of the federal securities laws. These statements are subject to numerous risks and uncertainties, many of which are beyond the company's control that could cause actual results to differ materially from the results expressed or implied by the statements. These risks and uncertainties include, but are not limited to: the outcome of and the publicity surrounding audits and investigations by domestic and foreign government agencies and legislative bodies; potential adverse proceedings by such agencies and potential adverse results and consequences from such proceedings; the scope and enforceability of the company's indemnities from its former parent; changes in capital spending by the company's customers; the company's ability to obtain contracts from existing and new customers and perform under those contracts; structural changes in the industries in which the company operates; escalating costs associated with and the performance of fixed-fee projects and the company's ability to control its cost under its contracts; claims negotiations and contract disputes with the company's customers; changes in the demand for or price of oil and/or natural gas; protection of intellectual property rights; compliance with environmental laws; changes in government regulations and regulatory requirements; compliance with laws related to income taxes; unsettled political conditions, war and the effects of terrorism; foreign operations and foreign exchange rates and controls; the development and installation of financial systems; increased competition for employees; the ability to successfully complete and integrate acquisitions; and operations of joint ventures, including joint ventures that are not controlled by the company.

KBR's most recently filed Annual Report on Form 10-K, any subsequent Form 10-Qs and 8-Ks, and other Securities and Exchange Commission filings discuss some of the important risk factors that KBR has identified that may affect the business, results of operations and financial condition. Except as required by law, KBR undertakes no obligation to revise or update publicly any forward-looking statements for any reason.For further information, please contact:

Investors
Nelson Rowe
Senior Vice President, Investor Relations
713-753-5082
Investors@kbr.com

Media
Brenna Hapes
External Global Communications
713-753-3800
Mediarelations@kbr.com