Press Release

HOUSTON Ð (September 17, 2018) Ð KBR, Inc. (NYSE: KBR) announced today that its global government services business, KBRwyle, has been awarded a contract to study the future of commercial enterprise in low-Earth orbit (LEO), including long-range opportunities for the International Space Station (ISS). NASA selected KBRwyle as one of thirteen contract awardees.

KBRwyle will assess the potential growth of a LEO market and how to offer affordable access to LEO. It will also analyze how to foster demand for commercial and government use of LEO platforms and capabilities. KBRwyle will study specific industry concepts like the viability of habitable platforms including the space station and separate free-flying structures.

KBRwyle will also provide NASA with recommendations on the role of the government and the space station in developing and growing a commercial economy in LEO.

According to NASA, the findings from these studies will help it, the administration and Congress develop a strategic approach to growing opportunities for American industry. The application of these results will expand access to LEO and stimulate a vibrant and competitive industrial base for continued U.S. leadership in space.

"KBRwyle has been at the forefront of U.S. space exploration for the last 50 years," said Byron Bright, President, KBR Government Services U.S. "We look forward to applying our expertise to these studies, working to profoundly impact the future of space exploration and shape tomorrow's space economy."

KBRwyle has worked with every U.S. astronaut since 1968 and has provided critical support to the ISS during design, construction and almost 18 years of continuous crewed operations. It operates at eleven NASA centers and facilities and supports work in the areas of space technology, aeronautics, science, and human exploration and operations. KBRwyle is a leading space industry services provider supporting the civil, military and commercial space segments.

Estimated revenue associated with this contract award will be booked into the backlog of unfilled orders for KBR's Government Services business segment.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 approximately 34,000 people worldwide (including our joint ventures), with customers in more than 75 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 logisticsTechnology, 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 and gasificationHydrocarbons Services, 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); program management and consulting services

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 U.S. 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
Alison Vasquez
Vice President, Investor Relations
713-753-5082
Investors@kbr.com

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