Exhibit 99.1

LandBridge Announces Launch of $100,000,000 Offering of Additional 6.250% Senior Notes due 2030

September 22, 2026

HOUSTON—(BUSINESS WIRE)—LandBridge Company LLC (NYSE: LB; NYSE Texas: LB) (“LandBridge”) announced today that DBR Land Holdings LLC (the “Issuer”), a subsidiary of LandBridge, intends, subject to market conditions, to offer $100 million in aggregate principal amount of 6.250% senior notes due 2030 (the “New Notes”) in a private placement to eligible purchasers (the “Offering”).

The New Notes are being offered as additional notes under the indenture, dated as of November 25, 2025 (the “Indenture”), pursuant to which the Issuer previously issued $500 million in aggregate principal amount of 6.250% senior notes due 2030 (the “Existing Notes”). The New Notes will have identical terms as the Existing Notes, other than the issue date and issue price, and will be treated as part of the same series as the Existing Notes for all purposes under the Indenture.

LandBridge intends to use the net proceeds from the Offering to repay a portion of outstanding borrowings under its revolving credit facility.

The New Notes to be offered have not been registered under the Securities Act of 1933, as amended (the “Securities Act”), or any state securities laws, and unless so registered, may not be offered or sold in the United States except pursuant to an exemption from, or in a transaction not subject to, the registration requirements of the Securities Act and applicable state securities laws. The New Notes will be offered in the United States only to persons reasonably believed to be qualified institutional buyers in reliance on Rule 144A under the Securities Act, and to persons outside the United States only pursuant to Regulation S under the Securities Act.

This press release is neither an offer to sell nor a solicitation of an offer to buy the New Notes or any other securities and shall not constitute an offer to sell or a solicitation of an offer to buy, or a sale of, the New Notes or any other securities in any jurisdiction in which such offer, solicitation or sale is unlawful.

About LandBridge

LandBridge owns or manages more than 350,000 surface acres across Texas and New Mexico, located primarily in the heart of the Delaware sub-region in the Permian Basin, the most active region for oil and gas exploration and development in the United States. LandBridge actively manages its land and resources to support and encourage energy and infrastructure development and other land uses, including digital infrastructure. LandBridge was formed by Five Point Infrastructure LLC, a private equity firm with a track record of investing in and developing energy, environmental water management and sustainable infrastructure companies within the Permian Basin.

Cautionary Statement Concerning Forward-Looking Statements

This press release contains forward-looking statements, as well as assumptions made by, and information currently available to, LandBridge, and therefore involve risks and uncertainties that are difficult to predict, including risks and uncertainties associated with market conditions as they relate to the Offering and the ability to successfully close the Offering. Forward-looking statements include all statements that are not historical facts. The words “anticipate,” “assume,” “believe,” “continue,” “could,” “estimate,” “expect,” “intend,” “may,” “plan,” “potential,” “predict,” “project,” “future,” “will,” “seek,” “foreseeable,” the negative version of these words, or similar terms and phrases are intended to identify forward-looking statements, although not all forward-looking statements contain such identifying words. Any forward-looking statement speaks only as of the date on which it is made, and, except as required by law, LandBridge does not undertake any obligation to update or revise any forward-looking statement, whether as a result of new information, future events or otherwise. New factors emerge from time to time, and it is not possible for LandBridge to predict all such factors. When considering these forward-looking statements, you should keep in mind the risk factors and other cautionary statements in LandBridge’s Annual Report on Form 10-K for the year ended December 31, 2025 and in other reports filed by LandBridge with the U.S. Securities and Exchange Commission. These risk factors could cause LandBridge’s actual results to differ materially from those contained in any forward-looking statement.

Contacts

Scott McNeely

Chief Financial Officer

LandBridge Company LLC

Contact@LandBridgeco.com

Mae Herrington

Director, Investor Relations

LandBridge Company LLC

ir@LandBridgeco.com

Media

Daniel Yunger / Nathaniel Shahan

Kekst CNC

daniel.yunger@kekstcnc.com / nathaniel.shahan@kekstcnc.com

Exhibit 99.2

Recent Developments

Conversion and Redomestication

On June 15, 2026, LandBridge announced that its board of directors formed a special committee of independent directors (the “Special Committee”) to evaluate a potential conversion from a Delaware limited liability company to a Texas corporation (the “Conversion and Redomestication”), primarily driven by index eligibility considerations. On August 4, 2026, LandBridge’s board of directors, upon the recommendation of the Special Committee, unanimously adopted resolutions (i) approving the Conversion and Redomestication and the plan of conversion (the “Plan of Conversion”), (ii) directing that the Plan of Conversion be submitted for shareholder approval and (iii) establishing a record date of August 14, 2026 for determination of shareholders entitled to vote thereon. On August 14, 2026, LandBridge Holdings, which holds shares representing a majority of the total votes that may be cast generally in the election of directors by holders of all of its outstanding common shares, acted by written consent, in lieu of a meeting of shareholders, to approve the Plan of Conversion. We expect the Conversion and Redomestication to be completed during the fourth quarter of 2026, although we can provide no assurance that it will be completed or the timing thereof. In addition, there can be no assurance that if LandBridge is converted to a corporate entity, it will be included in any particular index or that any such index inclusion will generate the expected benefits.

As a result of the Conversion and Redomestication, the rights of holders of LandBridge’s securities may change, as its internal affairs will cease to be governed by Delaware law and will instead be governed by Texas law, and LandBridge will thereafter be governed by a Texas certificate of formation and Texas bylaws. The Conversion and Redomestication is not expected to have an impact on the Issuer’s obligations under the notes.

For a more complete description of the Conversion and Redomestication, please read the Information Statement (as defined below), which is incorporated by reference herein.

Recent Acquisitions

In September 2026, the Company acquired more than 24,000 surface acres and related assets for approximately $261.2 million (the “Recent Acquisitions”), including the closing of the previously announced acquisition of the surface acres underlying the NDB landfill and entry with WaterBridge into a long-term surface use agreement for the continued use of certain acreage to support an environmental waste management facility concurrently acquired by WaterBridge. The acquired assets also include related fee minerals and mineral classified surface interests with a track record of consistent production that expands both LandBridge’s surface ownership as well as its participation in oil and gas royalties across a portion of the position. The Company funded the Recent Acquisitions using cash on hand and borrowings under the 2025 Revolving Credit Facility.

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[As used below, “as further adjusted” columns give effect to (i) this offering and the use of proceeds therefrom; and (ii) the Recent Acquisitions and the financing thereof.]

Non-GAAP Financial Measures

We use certain financial measures that are not calculated in accordance with GAAP in this offering memorandum, including Adjusted EBITDA, Adjusted EBITDA Margin, Free Cash Flow, Free Cash Flow Margin, Covenant EBITDA, Net Debt and Net Leverage. Although these non-GAAP financial measures are important factors in assessing our operating results, cash flows, overall financial flexibility and capital structure, they should not be considered in isolation or as a substitute for net income or gross margin or any other measures presented under GAAP.

Adjusted EBITDA, Adjusted EBITDA Margin and Covenant EBITDA

Adjusted EBITDA and Adjusted EBITDA Margin are used by our management and by external users of our financial statements, such as investors, research analysts and others, to assess the financial performance of our assets over the long term to generate sufficient cash to return capital to equity holders or service indebtedness. We define Adjusted EBITDA as net income (loss) before interest; taxes; depreciation, depletion and amortization; share-based compensation; non-recurring transaction-related expenses; litigation settlements and expenses incurred outside of the ordinary course of business; debt modification and extinguishment costs; gains or losses on disposal of assets; and other non-cash or non-recurring expenses. We define Adjusted EBITDA Margin as Adjusted EBITDA divided by total revenues.

Covenant EBITDA is used by our management and by external users of our financial statements, such as investors, research analysts and others, to assess our compliance with debt covenants and our ability to service our indebtedness. We define Covenant EBITDA as Adjusted EBITDA plus or minus material project adjustments or pro forma adjustments included in our covenant calculations. Material project adjustments allow a percentage (based on the then-current completion percentage of such material project) of an amount determined by the Company and approved by the Administrative Agent under the 2025 Revolving Credit Facility as the projected consolidated EBITDA attributable to such material project for the first 12-month period following the scheduled commercial operation date of such material project. Pro forma adjustments are adjustments with respect to any inclusion of impact to EBITDA from an asset acquisition or exclusion of impact to EBITDA from an asset divestiture.

Management believes Adjusted EBITDA and Adjusted EBITDA Margin are useful because these supplemental non-GAAP financial measures allow us to more effectively evaluate our operating performance and compare the results of our operations from period to period, and against our peers, without regard to our financing methods or capital structure. We exclude the items listed above from net income (loss) in arriving at Adjusted EBITDA, Adjusted EBITDA Margin and Covenant EBITDA because these amounts can vary substantially from company to company within our industry depending upon accounting methods, book values of assets, capital structures and the method by which the assets were acquired.

Management believes that Covenant EBITDA is a useful metric for investors as it monitors our covenant compliance and the sustainability of our debt levels.

The following tables set forth reconciliations of net income (loss) as determined in accordance with GAAP to Adjusted EBITDA, Adjusted EBITDA Margin and Covenant EBITDA for the periods indicated.