ADDITIONAL INFORMATION AND WHERE TO FIND IT
In connection with the proposed merger (the Proposed Transaction) of Devon Energy Corporation (Devon) and WPX Energy, Inc.
(WPX), Devon has filed with the Securities and Exchange Commission (the SEC) a registration statement on Form S-4 to register the shares of Devons common stock to be issued in
connection with the Proposed Transaction. The registration statement includes a document that serves as a prospectus of Devon and a joint proxy statement of each of Devon and WPX (the joint proxy statement/prospectus), and each party
will file other documents regarding the Proposed Transaction with the SEC. The registration statement on Form S-4, as amended, was declared effective by the SEC on November 24, 2020, and Devon and WPX
mailed the joint proxy statement/prospectus to their respective stockholders on or about November 30, 2020. INVESTORS AND SECURITY HOLDERS OF DEVON AND WPX ARE ADVISED TO READ THE REGISTRATION STATEMENT, THE JOINT PROXY STATEMENT/PROSPECTUS,
INCLUDING ANY AMENDMENTS OR SUPPLEMENTS TO THOSE DOCUMENTS, AND ANY OTHER RELEVANT DOCUMENTS THAT WILL BE FILED WITH THE SEC CAREFULLY AND IN THEIR ENTIRETY BECAUSE THEY DO AND WILL CONTAIN IMPORTANT INFORMATION ABOUT DEVON, WPX, THE PROPOSED
TRANSACTION AND RELATED MATTERS. Investors and security holders may obtain copies of the registration statement and the joint proxy statement/prospectus and other documents containing important information about Devon and WPX free of charge from the
SECs website. The documents filed by Devon with the SEC may be obtained free of charge at Devons website at www.devonenergy.com or at the SECs website at www.sec.gov. These documents may also be obtained free of charge from Devon
by requesting them by mail at Devon, Attn: Investor Relations, 333 West Sheridan Ave, Oklahoma City, OK 73102. The documents filed by WPX with the SEC may be obtained free of charge at WPXs website at www.wpxenergy.com or at the SECs
website at www.sec.gov. These documents may also be obtained free of charge from WPX by requesting them by mail at WPX, Attn: Investor Relations, P.O. Box 21810, Tulsa, OK 74102.
PARTICIPANTS IN THE SOLICITATION
Devon, WPX and
certain of their respective directors, executive officers and other members of management and employees may be deemed to be participants in the solicitation of proxies from Devons and WPXs stockholders with respect to the Proposed
Transaction. Information about Devons directors and executive officers is available in Devons Annual Report on Form 10-K for the 2019 fiscal year filed with the SEC on February 19, 2020, and
its definitive proxy statement for the 2020 annual meeting of shareholders filed with the SEC on April 22, 2020. Information about WPXs directors and executive officers is available in WPXs Annual Report on Form 10-K for the 2019 fiscal year filed with the SEC on February 28, 2020 and its definitive proxy statement for the 2020 annual meeting of shareholders filed with the SEC on March 31, 2020. Other information
regarding the participants in the proxy solicitation and a description of their direct and indirect interests, by security holdings or otherwise, is contained in the joint proxy statement/prospectus. Stockholders, potential investors and other
readers should read the joint proxy statement/prospectus carefully before making any voting or investment decisions.
NO OFFER OR SOLICITATION
This communication is not intended to and shall not constitute an offer to sell or the solicitation of an offer to sell or the solicitation of an
offer to buy any securities or a solicitation of any vote or approval, nor shall there be any sale of securities in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the
securities laws of any such jurisdiction. No offer of securities shall be made except by means of a prospectus meeting the requirements of Section 10 of the Securities Act of 1933, as amended.
FORWARD LOOKING STATEMENTS
This communication includes
forward-looking statements as defined by the SEC. Such statements include those concerning strategic plans, Devons and WPXs expectations and objectives for future operations, as well as other future events or conditions, and
are often identified by use of the words and phrases such as expects, believes, will, would, could, continue, may, aims, likely to be,
intends, forecasts, projections, estimates, plans, expectations, targets, opportunities, potential, anticipates,
outlook and other similar terminology. All statements, other than statements of historical facts, included in this communication that address activities, events or developments that Devon or WPX expects, believes or anticipates will or
may occur in the future are forward-looking statements. Such statements are subject to a number of assumptions, risks and uncertainties, many of which are beyond Devons and WPXs control. Consequently, actual future results could differ
materially from Devons and WPXs expectations due to a number of factors, including, but not limited to: the risk that Devons and WPXs businesses will not be integrated successfully; the risk that the cost savings, synergies
and growth from the Proposed Transaction may not be fully realized or may take longer to realize than expected; the diversion of management time on transaction-related issues; the effect of future regulatory or legislative actions on the companies
or the industries in which they operate, including the risk of new restrictions with respect to hydraulic fracturing or other development activities on Devons or WPXs federal acreage or their other assets; the risk that the credit
ratings of the combined company or its subsidiaries may be different from what the companies expect; the risk that Devon or WPX may be unable to obtain governmental and regulatory approvals required for the Proposed Transaction, or that required
governmental and regulatory approvals may delay the Proposed Transaction or result in the imposition of conditions that could reduce the anticipated benefits from the Proposed Transaction or cause the parties to abandon the Proposed Transaction; the
risk that a condition to closing of the Proposed Transaction may not be satisfied; the length of time necessary to consummate the Proposed Transaction, which may be longer than anticipated for various reasons; potential liability resulting from
pending or future litigation; changes in the general economic environment, or social or political conditions, that could affect the businesses; the potential impact of the announcement or consummation of the Proposed Transaction on relationships
with customers, suppliers, competitors, management and other employees; the ability to hire and retain key personnel; reliance on and integration of information technology systems; the risks associated with assumptions the parties make in connection
with the parties critical accounting estimates and legal proceedings; the volatility of oil, gas and natural gas liquids (NGL) prices; uncertainties inherent in estimating oil, gas and NGL reserves; the impact of reduced demand for our
products and products made from them due to governmental and societal actions taken in response to the COVID-19 pandemic; the uncertainties, costs and risks involved in Devons and WPXs operations,
including as a result of employee misconduct; natural disasters, pandemics, epidemics (including COVID-19 and any escalation or worsening thereof) or other public health conditions; counterparty credit risks;
risks relating to Devons and WPXs indebtedness; risks related to Devons and WPXs hedging activities; competition for assets, materials, people and capital; regulatory restrictions, compliance costs and other risks relating to
governmental regulation, including with respect to environmental matters; cyberattack risks; Devons and WPXs limited control over third parties who operate some of their respective oil and gas properties; midstream capacity constraints
and potential interruptions in production; the extent to which insurance covers any losses Devon or WPX may experience; risks related to investors attempting to effect change; general domestic and international economic and political conditions,
including the impact of COVID-19; and changes in tax, environmental and other laws, including court rulings, applicable to Devons and WPXs business.