Press Release

Wire Release
_HOUSTON Ð (June 18, 2018) Ð KBR, Inc. (NYSE: KBR) announced today that its global government services business, KBRwyle, has secured a seat on a $900 million indefinite-delivery, indefinite-quantity (IDIQ) contract to provide rapid solutions to fix problems identified through the Department of Defense's Joint Test and Evaluation (JT&E) Program.

The U.S. Army Corps of Engineers Engineering Research and Development Center selected KBRwyle as one of the six prime contractors on this 10-year, cost-plus-fixed-fee contract. KBRwyle won a seat on the previous JT&E Program contract in 2007. KBRwyle will assist the program in finding new ways for U.S. warfighters to accomplish their missions with today's equipment and processes.

Under the multi-award contract, KBRwyle will have the opportunity to bid on task orders issued by the JT&E Program Offices to address and resolve critical warfighter issues. Utilizing its recognized systems engineering and test and evaluation expertise, KBRwyle's support will include test and evaluation, specialized engineering, cybersecurity, and intelligence.

"We are honored to be selected as a prime on this contract again and take seriously the confidence exhibited by the DoD in choosing us to continue on this important program," said Byron Bright, President, KBR Government Services U.S. "We will continue to work with the JT&E Program Office to develop rapid and effective solutions to complex warfighter issues with professionalism, rigor and innovation."

The JT&E Program brings multiple military services together to improve the joint interoperability of systems, technical and operational concepts, and system performance, and enhance the validation of testing methodologies, models, simulations, and test beds. The program also develops new tactics, techniques, and procedures and rigorously measures the extent to which their use improves operational outcomes.

KBRwyle specializes in complex and technical services and is a leading systems engineering and integration provider to the U.S. military. KBRwyle's domain expertise spans over 40 years during which it has supported more than 35 Navy, Army and Air Force programs.

Estimated 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 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. Visit www.kbr.com

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
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