Press Release

HOUSTON Ð (October 1, 2018) Ð KBR, Inc. (NYSE: KBR) announced today that its global government services business, KBRwyle, will once again join the Association of the U.S. Army (AUSA) as co-lead sponsor of the Army Ten-Miler (ATM) race in Washington, D.C. on Sunday, October 7, 2018.

KBR has been a major sponsor of the ATM for 13 years. At the race, KBRwyle's sponsorship will provide free shuttle service, hospitality tents, water, pre-packaged meal boxes, and a reunion area where family and friends link up with runners.

KBRwyle will once again sponsor the famous Hooah-Tent Zone where attendees interact with soldiers while enjoying Wisconsin bratwursts, cooked and served by Rockland's BBQ restaurant in Arlington, Virginia.

The ATM is the third largest ten-mile road race in the world, attracting more than 35,000 runners from around the globe. All proceeds from the ATM go to the U.S. Army's Morale, Welfare, and Recreation (MWR) program.

"KBRwyle is proud to be part of such an impactful charity event that benefits soldiers and their families," said Byron Bright, President, KBR Government Services U.S.

"Our organization is honored to serve U.S. armed forces around the world. Many KBRwyle employees are veterans, reservists and have loved ones in the military," Bright continued. "Supporting the warfighter is personal for KBRwyle Ð we do it on the frontlines and at home."

Since it began in 1985, the ATM has generated over $7.3 million for the Army MWR. The MWR program directly supports soldiers and their families worldwide by providing a variety of family, morale, welfare and recreation programs and services to enrich soldiers' and their families' lives culturally and creatively.

From missile defense to tank maintenance, KBRwyle assists the Army in carrying out its varied missions across the globe. Known for pioneering leading-edge solutions, KBRwyle lends its domain expertise to the U.S. military, NASA, foreign allies and commercial customers.

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