UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of report (Date of earliest event reported): September 26, 2024

SOUTHWESTERN ENERGY COMPANY

(Exact name of registrant as specified in its charter)

Delaware		001-08246		71-0205415
(State or other jurisdiction of incorporation)		(Commission File Number)		(IRS Employer Identification No.)

10000 Energy Drive

Spring, TX 77389

(Address of principal executive offices) (Zip Code)

(832) 796-1000

(Registrant’s telephone number, including area code)

Not Applicable

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

x Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

¨ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

¨ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class		Trading Symbol(s)		Name of each exchange on which registered
Common Stock, Par Value $0.01		SWN		New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ¨

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

Item 8.01 Other Events.

On September 26, 2024, Southwestern Energy Company, a Delaware corporation (NYSE: SWN) (“Southwestern”) and Chesapeake Energy Corporation, an Oklahoma corporation (NASDAQ: CHK) (“Chesapeake”) issued a joint press release announcing that the waiting period under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, in relation to the pending combination between Southwestern and Chesapeake, expired at 11:59 ET September 24, 2024. A copy of the press release is attached as Exhibit 99.1 hereto and incorporated by reference herein.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits.

Exhibit No.		Description

99.1		Joint Press Release issued by Southwestern Energy Company and Chesapeake Energy Corporation dated September 26, 2024.

104		Cover Page Interactive Data File-the cover page XBRL tags are embedded within the Inline XBRL document.

Forward-Looking Statements

This communication contains “forward-looking statements” within the meaning of the federal securities laws. Forward-looking statements may be identified by words such as “anticipates,” “believes,” “cause,” “continue,” “could,” “depend,” “develop,” “estimates,” “expects,” “forecasts,” “goal,” “guidance,” “have,” “impact,” “implement,” “increase,” “intends,” “lead,” “maintain,” “may,” “might,” “plans,” “potential,” “possible,” “projected,” “reduce,” “remain,” “result,” “scheduled,” “seek,” “should,” “will,” “would” and other similar words or expressions. The absence of such words or expressions does not necessarily mean the statements are not forward-looking. Forward-looking statements are not statements of historical fact and reflect the current views of Chesapeake and Southwestern about future events. These forward-looking statements include, but are not limited to, statements regarding the proposed transaction between Chesapeake and Southwestern, the expected closing of the proposed transaction and the timing thereof and the proforma combined company and its operations, strategies and plans, synergies and anticipated future performance. Information adjusted for the proposed transaction should not be considered a forecast of future results. Although we believe our forward-looking statements are reasonable, statements made regarding future results are not guarantees of future performance and are subject to numerous assumptions, uncertainties and risks that are difficult to predict. Forward-looking statements are based on current expectations, estimates and assumptions that involve a number of risks and uncertainties that could cause actual results to differ materially from those projected.

Actual outcomes and results may differ materially from the results stated or implied in the forward-looking statements included in this communication due to a number of factors, including, but not limited to: the occurrence of any event, change or other circumstances that could give rise to the termination of the definitive agreement; the risk that the parties may not be able to satisfy the conditions to the proposed transaction in a timely manner or at all; risks related to the disruption of management time from ongoing business operations due to the proposed transaction; the risk that any announcements relating to the proposed transaction could have adverse effects on the market price of Chesapeake’s common stock or Southwestern’s common stock; the risk of any unexpected costs or expenses resulting from the proposed transaction; the outcome of existing litigation and the risk of any further litigation relating to the proposed transaction; the risk that the proposed transaction and its announcement could have an adverse effect on the ability of Chesapeake and Southwestern to retain and hire key personnel, on the ability of Chesapeake to attract third-party customers and maintain its relationships with derivatives counterparties and on Chesapeake’s operating results and businesses generally; the risk that problems may arise in successfully integrating the businesses of the companies, which may result in the combined company not operating as effectively and efficiently as expected; the risk that the combined company may be unable to achieve synergies or other anticipated benefits of the proposed transaction or it may take longer than expected to achieve those synergies or benefits and other important factors that could cause actual results to differ materially from those projected; the volatility in commodity prices for crude oil and natural gas, the presence or recoverability of estimated reserves; the ability to replace reserves; environmental risks, drilling and operating risks, including the potential liability for remedial actions or assessments under existing or future environmental regulations and litigation; exploration and development risks; the effect of future regulatory or legislative actions on the companies or the industry in which they operate, including the risk of new restrictions with respect to oil and natural gas development activities; the risk that the credit ratings of the combined business may be different from what the companies expect; the ability of management to execute its plans to meet its goals and other risks inherent in Chesapeake’s and Southwestern’s businesses; public health crises, such as pandemics and epidemics, and any related government policies and actions; the potential disruption or interruption of Chesapeake’s or Southwestern’s operations due to war, accidents, political events, civil unrest, severe weather, cyber threats, terrorist acts, or other natural or human causes beyond Chesapeake’s or Southwestern’s control; and the combined company’s ability to identify and mitigate the risks and hazards inherent in operating in the global energy industry. Other unpredictable or unknown factors not discussed in this communication could also have material adverse effects on forward-looking statements. Such factors are difficult to predict and may be beyond Chesapeake’s or Southwestern’s control, and may also include other risks and uncertainties including those detailed in Chesapeake’s annual reports on Form 10-K, quarterly reports on Form 10-Q and current reports on Form 8-K that are available on its website at http://investors.chk.com/ and on the Securities and Exchange Commission’s (the “SEC”) website at http://www.sec.gov, and those detailed in Southwestern’s annual reports on Form 10-K, quarterly reports on Form 10-Q and current reports on Form 8-K that are available on Southwestern’s website at https://ir. swn.com/CorporateProfile/default.aspx and on the SEC’s website at http://www.sec.gov. Forward-looking statements are based on the estimates and opinions of management at the time the statements are made. Chesapeake and Southwestern undertake no obligation to publicly correct or update the forward-looking statements in this communication, in other documents, or on their respective websites to reflect new information, future events or otherwise, except as required by applicable law. All such statements are expressly qualified by this cautionary statement. Readers are cautioned not to place undue reliance on these forward-looking statements that speak only as of the date hereof.

IMPORTANT ADDITIONAL INFORMATION AND WHERE TO FIND IT

In connection with the proposed transaction, Chesapeake filed a Registration Statement on Form S-4 (the “Registration Statement”) with the SEC that also constitutes a prospectus of Chesapeake common stock. The Registration Statement was declared effective on May 17, 2024, at which time Chesapeake filed a final prospectus and Southwestern filed a definitive proxy statement. Chesapeake and Southwestern commenced mailing of the definitive joint proxy statement/prospectus (the “Proxy Statement/Prospectus”) to their respective shareholders on or about May 17, 2024. Each party may also file other relevant documents regarding the proposed transaction with the SEC. This communication is not a substitute for the Proxy Statement/Prospectus or for any other document that Southwestern or Chesapeake has filed or may file in the future with the SEC in connection with the proposed transaction. INVESTORS ARE URGED TO CAREFULLY READ THE FORM S-4, THE PROXY STATEMENT/PROSPECTUS AND ALL OTHER RELEVANT DOCUMENTS THAT ARE FILED OR WILL BE FILED WITH THE SEC, AS WELL AS ANY AMENDMENTS OR SUPPLEMENTS TO THOSE DOCUMENTS, AS THEY BECOME AVAILABLE BECAUSE THEY CONTAIN OR WILL CONTAIN IMPORTANT INFORMATION ABOUT CHESAPEAKE, SOUTHWESTERN, THE PROPOSED TRANSACTION, THE RISKS RELATED THERETO AND RELATED MATTERS.

Investors and security holders may obtain free copies of the Form S-4 and the Proxy Statement/Prospectus, as well as other filings containing important information about Chesapeake or Southwestern, without charge at the SEC’s Internet website (http://www.sec.gov). Copies of the documents filed with the SEC by Chesapeake may be obtained free of charge on Chesapeake’s website at http://investors.chk.com/. Copies of the documents filed with the SEC by Southwestern may be obtained free of charge on Southwestern’s website at https://ir.swn.com/CorporateProfile/default.aspx.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

	SOUTHWESTERN ENERGY COMPANY

Dated: September 26, 2024	By:	/s/ Chris Lacy
	Name:	Chris Lacy
	Title:	Senior Vice President, General Counsel & Secretary

SOUTHWESTERN ENERGY CO 8-K