Chord Energy Corp

The Board of Directors of the Company requests your proxy for the Annual Meeting of Shareholders that will be held on Wednesday, May 1, 2024, at 9:00 a.m. Central Time, at the offices of the Company, 1001 Fannin Street, Suite 1500, Houston, Texas 77002. By granting the proxy, you authorize the persons named on the proxy to represent you and vote your shares at the Annual Meeting in accordance with your instructions. You may revoke your proxy at any time before the vote is taken by following the instructions in this proxy statement.

Important Notice Regarding the Availability of Proxy Materials

for the Annual Meeting of Shareholders to be held on May 1, 2024:

the proxy statement and annual report for 2023 are available at www.proxyvote.com

The Company is making its proxy materials available, including the proxy statement and the Company's Annual Report on Form 10-K for the year ended December 31, 2023, to its shareholders of record as of the close of business on March 7, 2024, beginning on March 19, 2024.

When and where is the Annual Meeting?

The Annual Meeting will be held at the offices of the Company, 1001 Fannin Street, Suite 1500, Houston, Texas 77002, on Wednesday, May 1, 2024, at 9:00 a.m. Central Time.

Who may vote?

You may vote if you were a holder of record of the Company's common stock as of the close of business on March 7, 2024, the record date for the Annual Meeting. Each share of the Company's common stock is entitled to one vote at the Annual Meeting. On the record date, there were 41,543,461 shares of common stock outstanding and entitled to vote at the Annual Meeting. There are no cumulative voting rights associated with the Company's common stock.

May I attend the Annual Meeting?

Yes, if you were a shareholder of record as of the close of business on March 7, 2024. You must present valid, government‑issued picture identification, such as a driver’s license, before being admitted to the Annual Meeting. If your shares are held in the name of your broker, bank, or other nominee, you must bring to the Annual Meeting an account statement or letter from the nominee indicating that you beneficially owned the shares on March 7, 2024. Cameras, recording devices, cell phones and other electronic devices may not be used during the Annual Meeting.

How can I access the proxy materials overthe Internet?

Your Notice of Internet Availability or proxy card, if you received one, will contain instructions on how to view our proxy materials for the Annual Meeting on the Internet. Our proxy materials are also available athttp://www.proxyvote.com.

What am I voting on and how does the Board recommend that I vote?

Users’ Guide

A proxy that is properly completed and submitted, unless revoked as described below, will be voted at the Annual Meeting in accordance with the instructions on the proxy. If you properly complete and submit a proxy, but do not indicate any specific voting instructions, your shares will be voted in accordance with the Board of Director’s recommendations on all matters presented in this proxy statement. If any other business properly comes before the shareholders for a vote at the meeting, your shares will be voted in accordance with the discretion of the holders of the proxy. The Board of Directors knows of no matters, other than those previously stated, to be presented for consideration at the Annual Meeting.

What is the effect of an “advisory” vote?

An advisory vote is not binding on our Board of Directors or the Compensation and Human Resources Committee and will not overrule any decisions made by our Board of Directors or the Compensation and Human Resources Committee or require them to take any specific action. Although the vote is non-binding, our Board of Directors and the Compensation and Human Resources Committee value the opinions of our shareholders, and will carefully consider the outcome of the vote when making future compensation decisions for our Named Executive Officers. To the extent there is any significant vote against our Named Executive Officers’ compensation as disclosed in this proxy statement, we will consider our shareholders’ concerns, and the Compensation and Human Resources Committee will evaluate whether any actions are necessary to address those concerns.

Why should I vote?

Your vote is very important regardless of the amount of stock you hold. The Board of Directors strongly encourages you to exercise your right to vote as a shareholder of the Company.

How do I vote?

You may vote by any of the four methods listed below. If your stock is held in street name (in the name of a bank, broker, or other holder of record), please see “How do beneficial owners vote?” below.

Internet. Vote on the Internet at http://www.proxyvote.com. This website also allows electronic proxy voting using smartphones, tablets and other web-connected mobile devices (additional charges may apply pursuant to your service provider plan). Simply follow the instructions on the Notice of Internet Availability to access the proxy materials, or on the proxy card, if you received one by mail. If you vote on the Internet, you can request electronic delivery of future proxy materials. Internet voting facilities for shareholders of record will be available 24 hours a day and will close at 11:59 p.m. (Eastern Time) on Tuesday, April 30, 2024.

Telephone. Vote by telephone by following the instructions on the Notice of Internet Availability to access the proxy materials, or on the proxy card, if you received one by mail. Easy-to-follow voice prompts allow you to vote your stock and confirm that your vote has been properly recorded. Telephone voting facilities for shareholders of record will be available 24 hours a day and will close at 11:59 p.m. (Eastern Time) on Tuesday, April 30, 2024.

Mail. If you received a proxy card by mail, vote by mail by completing, signing, dating and returning your proxy card in the pre-addressed, postage-paid envelope provided. If you vote by mail and your proxy card is returned unsigned, then your vote cannot be counted. If you vote by mail and the returned proxy card is signed without indicating how you want to vote, then your proxy will be voted as recommended by the Board of Directors. If mailed, your completed and signed proxy card must be received by Tuesday, April 30, 2024.

Meeting. You may attend and vote at the Annual Meeting. The Board of Directors recommends that you vote using one of the first three methods discussed above, as it is not practical for most shareholders to attend and vote at the Annual Meeting. Using one of the first three methods discussed above to vote will not limit your right to vote at the Annual Meeting if you later decide to attend in person.

If I vote by telephone or Internet and received a proxy card in the mail, do I need to return my proxy card?

No.

Users’ Guide

If I vote by mail, telephone or Internet, may I still attend the Annual Meeting?

Yes.

How do beneficial owners vote?

If your shares are held in a brokerage account or by a bank or other nominee, you are considered the beneficial owner of shares held in “street name,” and the proxy materials will be forwarded to you by your broker or nominee. The broker or nominee is considered the shareholder of record with respect to those shares. As the beneficial owner, you have the right to direct your broker how to vote. Beneficial owners that receive the proxy materials by mail from the shareholder of record should follow the instructions included in those materials (usually a voting instruction card) to transmit voting instructions.

Can I revoke my proxy?

Yes. You may revoke your proxy before the voting polls are closed at the Annual Meeting by the following methods:

•voting at a later time by Internet or telephone until 11:59 p.m. (Eastern Time) on Tuesday, April 30, 2024;

•voting in person at the Annual Meeting;

•delivering to the Company's Corporate Secretary a proxy with a later date or a written revocation of your most recent proxy; or

•giving notice to the inspector of elections at the Annual Meeting.

If you are a street name shareholder (for example, if your shares are held in the name of a bank, broker, or other holder of record) and you vote by proxy, you may later revoke your proxy by informing the holder of record in accordance with that entity’s procedures.

How many votes must be present to hold the Annual Meeting?

Your stock is counted as present at the Annual Meeting if you attend the Annual Meeting and vote in person or if you properly return a proxy by Internet, telephone or mail. In order for us to hold our Annual Meeting, holders of a majority of the voting power of the outstanding shares of the Company entitled to vote at the meeting must be present in person or by proxy at the Annual Meeting. This is referred to as a quorum. Abstentions and broker non-votes will be counted as present for purposes of determining a quorum.

If a quorum is not present, the person presiding over the Annual Meeting in accordance with our Bylaws or, in the absence of such person, the holders of a majority of the voting power of shares of stock who are present in person or by proxy at the Annual Meeting have the power to adjourn the Annual Meeting from time to time, without notice other than as required by applicable law. At any adjourned Annual Meeting at which a quorum is present, any business may be transacted that might have been transacted at the Annual Meeting as originally notified.

What is a broker non-vote?

The Nasdaq permits brokers to vote their customers’ stock held in street name on routine matters (“Discretionary Items”) when the brokers have not received voting instructions from their customers. The Nasdaq does not, however, allow brokers to vote their customers’ stock held in street name on non-routine matters unless they have received voting instructions from their customers. In such cases, the uninstructed shares for which the broker is unable to vote are called broker non-votes.

What Discretionary Items will be voted on at the Annual Meeting?

Proposal 3, the ratification of the independent registered public accounting firm is the only Discretionary Item on which brokers may vote in their discretion on behalf of customers who have not provided voting instructions.

Users’ Guide

What non-routine matters will be voted on at the Annual Meeting?

Proposal 1, the election of directors, and Proposal 2, the advisory vote to approve our Named Executive Officer compensation, are non-routine matters on which brokers are not allowed to vote unless they have received voting instructions from their customers.

How many votes are needed to approve each of the proposals or, with respect to the advisory vote, to be considered the recommendation of the shareholders?

The Board of Directors recommends a vote FOR each of the following three Proposals:

Each of Proposals 2 and 3 will be approved if it receives the affirmative vote of a majority of the voting power of the shares entitled to vote on the proposals and present in person or by proxy at the Annual Meeting. Both abstentions and broker non-votes are counted in determining that a quorum is present for the meeting.

Could other matters be decided at the Annual Meeting?

We are not aware of any matters that will be considered at the Annual Meeting other than those set forth in this proxy statement. However, if any other matters arise at the Annual Meeting, the persons named in your proxy will vote in accordance with their best judgment.

What is the Director Resignation Policy?

The Company’s Bylaws provide for the election of directors by a majority of votes cast and require a director nominee in an uncontested election who receives more votes “against” than votes “for” his or her election to tender his or her resignation to the Board of Directors for its consideration. In such event, the Nominating and Governance Committee would determine whether to accept such director’s resignation, subject to the Board of Directors’ final approval. The Board of Directors will promptly disclose its decision within 90 days after the date of the certification of the election results. The Company believes that this majority vote standard provides for accountability while preserving the ability of the Board of Directors to exercise its judgment in the best interest of all shareholders. Abstentions will not be taken into account in director elections.

Where can I find the voting results of the Annual Meeting?

We will announce the preliminary voting results at the Annual Meeting and disclose the final voting results in a current report on Form 8-K filed with the SEC within four business days of the date of the Annual Meeting unless only preliminary voting results are available at that time. To the extent necessary, we will

Users’ Guide

file an amended report on Form 8-K to disclose the final voting results within four business days after the final voting results are known. You may access or obtain a copy of these and other reports free of charge on the Company’s website atwww.chordenergy.com. Also, the referenced Form 8-K, any amendments thereto and other reports filed with or furnished to the SEC by the Company are available to you over the Internet at the SEC’s website atwww.sec.gov.

How can I view the shareholder list?

In accordance with Delaware General Corporation Law, a complete list of shareholders of record entitled to vote at the Annual Meeting will be available for viewing, for purposes germane to the Annual Meeting, during ordinary business hours for a period of ten days before the Annual Meeting at our offices at 1001 Fannin Street, Suite 1500, Houston, Texas 77002.

Who pays for the proxy solicitation related to the Annual Meeting?

The Company will bear all costs of solicitation. Solicitation of proxies may be made via the Internet, by mail, personal interview or telephone by officers, directors and regular employees of the Company. None of our officers or employees will receive any extra compensation for soliciting you. The Company may also request banking institutions, brokerage firms, custodians, nominees and fiduciaries to forward solicitation material to the beneficial owners of the common stock that those companies or persons hold of record, and the Company will reimburse the forwarding expenses. In addition, the Company has retained Broadridge Financial Solutions, Inc., an independent third party (“Broadridge”), to tabulate votes for a fee estimated not to exceed $10,000.

Who will tabulate and certify the vote?

Broadridge will tabulate and certify the vote, and will have a representative to act as the independent inspector of elections for the Annual Meeting.

If I want to submit a shareholder proposal or director nomination for the 2025 Annual Meeting, when is that proposal or nomination due?

If you are an eligible shareholder and want to submit a proposal for possible inclusion in the proxy materials relating to the 2025 Annual Meeting of Shareholders (the “2025 Annual Meeting”), your proposal must be delivered to the attention of our Corporate Secretary and must be received at our principal executive office, 1001 Fannin Street, Suite 1500, Houston, Texas 77002, no later than November 19, 2024, unless the Company notifies the shareholders otherwise. We will only consider proposals that are timely and meet the requirements of SEC Rule 14a-8 as well as the procedures set forth in our Bylaws.

If you are an eligible shareholder and want to submit a director nominee for possible inclusion in the proxy materials relating to the 2025 Annual Meeting under the proxy access provisions of Section 3.14 of our Bylaws, your proposal must be delivered to the attention of our Corporate Secretary and must be received at our principal executive office no later than November 19, 2024.

If you intend to solicit proxies in support of a director nominee other than the Company's nominees, to comply with Rule 14a-19 (the SEC's universal proxy rule), you must provide proper written notice in accordance with the procedures set forth in Section 3.13 of our Bylaws that sets forth all the information required by Rule 14a-19 and deliver such notice to our principal executive offices no earlier than the close of business on the 120th day (January 1, 2025), and no later than the close of business on the 90th day (January 31, 2025), prior to the first anniversary date of the Annual Meeting. Provided, however, that in the event that the date of the 2025 Annual Meeting is more than 30 days before or more than 60 days after the first anniversary date of the Annual Meeting, such notice must be received not earlier than the close of business on the 120th day prior to the date of the 2025 Annual Meeting and not later than the close of business on the later of the 90th day prior to the 2025 Annual Meeting and the 10th day following the Company's first public announcement of the date of the 2025 Annual Meeting. Finally, in the event that the date of the 2025 Annual Meeting is more than 30 days, but not more than 60 days, after the first anniversary date of the Annual Meeting, such notice must be received by the later of 60 days prior to the 2025 Annual Meeting and 10 days following the Company's first public announcement of the date of the 2025 Annual Meeting, unless our Bylaws provide for an earlier date.

Users’ Guide

Any shareholder of the Company who desires to submit a proposal or director nomination at the 2025 Annual Meeting not included in the Company’s proxy materials must submit such proposal or director nomination to the Company at its principal executive offices so that it is received no earlier than the close of business on the 120th day (January 1, 2025), and no later than the close of business on the 90th day (January 31, 2025), prior to the first anniversary date of the Annual Meeting; provided, however, that the date of the 2025 Annual Meeting is more than 30 days before or more than 60 days after the first anniversary date of the Annual Meeting, such notice must be received not earlier than the close of business on the 120th day prior to the date of the 2025 Annual Meeting and not later than the close of business on the later of the 90th day prior to the 2025 Annual Meeting and the 10th day following the Company's first public announcement of the date of the 2025 Annual Meeting. In addition to being proper for shareholder action and in compliance with applicable law, such director nomination must be submitted in accordance with, and include the information and materials required by, the Bylaws and, to the extent applicable, the Charter.

What is the effect of the pending Arrangement with Enerplus?

As previously announced, and as discussed elsewhere in this proxy statement, we entered into an Arrangement Agreement (the “Arrangement Agreement”) with Spark Acquisition ULC, an unlimited liability company organized and existing under the laws of the Province of Alberta, Canada and a wholly owned subsidiary of Chord (“Canadian Sub”), and Enerplus Corporation, a corporation existing under the laws of the Province of Alberta, Canada ("Enerplus”). Closing is expected to occur by mid-year 2024 and in connection therewith, the Company will continue in existence and Enerplus' former shareholders will become shareholders of the Company. Because the Company is surviving the transactions contemplated by the Arrangement Agreement (the “Arrangement”), our shareholders will be able to submit shareholder proposals and nominate directors for our 2025 Annual Meeting as described above in this Users' Guide. Please see "Recent Developments" for more information.

How can I obtain a copy of the Annual Report on Form 10-K?

Shareholders may request a free copy of our Annual Report on Form 10-K by submitting such request to Investor Relations, Chord Energy Corporation, 1001 Fannin Street, Suite 1500, Houston, Texas, 77002, or by calling (281) 404-9500. Alternatively, shareholders can access our Annual Report on Form 10-K on the Company’s website atwww.chordenergy.com and atwww.proxyvote.com. Also, our Annual Report on Form 10-K and other reports filed by the Company with the SEC are available to you over the Internet at the SEC’s website atwww.sec.gov.

Will I get more than one copy of the proxy statement and annual report if there are multiple shareholders at my address?

One copy of this proxy statement and our Annual Report on Form 10-K (the “Proxy Materials”) will be sent to shareholders who share an address, unless they have notified the Company that they want to continue receiving multiple packages. A copy of the Proxy Materials will also be promptly sent upon written or oral request to any shareholder of a shared address to which a single copy of the Proxy Materials was delivered. If two or more shareholders with a shared address are currently receiving only one copy of the Proxy Materials, then the shareholders may request to receive multiple packages in the future, or if a shareholder is currently receiving multiple packages of the Proxy Materials, then the shareholder may request to receive a single copy in the future. Such requests may be made by writing to Investor Relations, Chord Energy Corporation, 1001 Fannin Street, Suite 1500, Houston, Texas 77002 or by calling (281) 404-9500.

IT IS IMPORTANT THAT PROXIES BE RETURNED PROMPTLY. WHETHER OR NOT YOU EXPECT TO ATTEND THE MEETING IN PERSON, YOU ARE URGED TO VOTE BY INTERNET, BY PHONE OR IF YOU HAVE RECEIVED PAPER COPIES OF THE PROXY MATERIAL, BY COMPLETING, SIGNING AND RETURNING THE PROXY IN THE ENCLOSED POSTAGE-PAID, ADDRESSED