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$236M Sheridan asset deal adds reserves at Diversified Energy (NYSE: DEC)

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Form Type
8-K/A

Rhea-AI Filing Summary

Diversified Energy Company amends a prior current report about its acquisition of oil and gas assets from Sheridan Holding Company III. The company obtained relief under Rule 3-13 of Regulation S-X, allowing it to omit historical and pro forma financial statements and instead provide unaudited reserve disclosures for the year ended December 31, 2025, filed as Exhibit 99.1.

The Sheridan transaction, completed April 30, 2026 through wholly owned subsidiaries, was treated as an asset acquisition, with cash consideration of approximately $236 million. As of December 31, 2025, the acquired properties had proved reserves of 340,009 MMcf of natural gas, 17,762 MBbls of NGLs, and 5,205 MBbls of oil. The standardized measure of discounted future net cash flows for these reserves was $344,200 (in thousands).

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Item 9.01 Financial Statements and Exhibits Exhibits
Financial statements, pro forma financial information, and exhibit attachments filed with this report.
Cash consideration $236 million Approximate cash paid for Sheridan asset acquisition, including purchase price adjustments
Natural gas proved reserves 340,009 MMcf Total proved natural gas reserves of acquired Sheridan properties as of December 31, 2025
NGLs proved reserves 17,762 MBbls Total proved NGL reserves of acquired Sheridan properties as of December 31, 2025
Oil proved reserves 5,205 MBbls Total proved oil reserves of acquired Sheridan properties as of December 31, 2025
Standardized measure $ 344,200 In thousands; discounted future net cash flows for Sheridan proved reserves as of December 31, 2025
Future cash inflows $ 1,647,328 In thousands; undiscounted future cash inflows from Sheridan proved reserves as of December 31, 2025
Future net cash flows $ 899,431 In thousands; future net cash flows from Sheridan proved reserves before 10% discount
asset acquisition financial
"this transaction was considered an asset acquisition rather than a business combination"
An asset acquisition is when a company buys specific pieces of another business—such as equipment, buildings, patents, customer lists, or inventory—rather than buying the other company’s stock. For investors, it matters because this lets a buyer add value or cut costs without taking on unwanted liabilities, similar to shopping for and installing only the useful appliances in a house instead of buying the whole property; the move can change future revenue, costs and risk.
proved developed reserves financial
"Proved developed reserves | Beginning of period | 325,801"
Proved developed reserves are quantities of oil or natural gas that have been confirmed by engineering data and can be produced with existing wells, equipment and infrastructure without significant additional drilling or work. Investors care because these reserves are the most reliable source of near-term production and cash flow—think of it as fruit already in a basket rather than fruit still growing on the tree—so they carry lower technical and timing risk and directly affect short‑term valuation.
standardized measure of discounted future net cash flows financial
"Standardized Measure of Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves"
A standardized measure of discounted future net cash flows is a single number that converts a company’s expected future incoming and outgoing cash into today’s dollars by reducing later amounts for the time value of money and risk. Investors use it like a common yardstick to compare what a business or project is truly worth today versus its market price; imagine choosing between a promised series of future paychecks or a one-time lump sum now. This helps assess whether an investment appears over- or under-valued.
Regulation S-X regulatory
"Pursuant to the authority granted under Rule 3-13 of Regulation S-X"
A set of U.S. securities rules that prescribes how public companies must prepare, present and have audited their financial statements and related exhibits. It lays out formats, required schedules and minimum disclosure standards so financial reports follow a consistent structure. For investors, this consistency and verification act like a standard recipe and inspection checklist, making financial statements easier to compare, trust and use for valuation decisions.
Rule 3-13 regulatory
"the Staff’s authority under Rule 3-13 of Regulation S-X"
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FAQ

What does Diversified Energy Company (DEC) disclose in this amended report?

The amended report explains that DEC obtained Regulation S-X Rule 3-13 relief, so it will not file historical and pro forma financial statements for the Sheridan acquisition and instead provides unaudited oil and gas reserve information for 2025 as Exhibit 99.1.

What assets did DEC (DEC) acquire in the Sheridan transaction and for how much?

On April 30, 2026, DEC acquired oil and natural gas wells, leasehold interests and related assets in several east Texas counties from Sheridan Holding Company III, paying approximately $236 million in cash consideration, including customary purchase price adjustments.

What proved reserves are associated with DEC’s Sheridan acquisition (DEC)?

As of December 31, 2025, the acquired Sheridan properties had proved reserves of 340,009 MMcf of natural gas, 17,762 MBbls of NGLs, and 5,205 MBbls of oil, all classified as proved developed reserves with no proved undeveloped reserves.

What is the standardized measure of future net cash flows for DEC’s Sheridan reserves?

The standardized measure of discounted future net cash flows relating to the Sheridan proved reserves was $344,200 (in thousands). This is based on $1,647,328 (in thousands) of future cash inflows, less production, development, and income tax costs, discounted at 10% annually.

How did DEC (DEC) classify the Sheridan deal for accounting purposes?

DEC classified the Sheridan transaction as an asset acquisition rather than a business combination. This reflects that the acquired oil and gas wells, leasehold interests, and related assets in east Texas were treated as a group of assets, not a separate acquired business.

What financial disclosure relief did DEC receive regarding the Sheridan acquisition?

Staff of the SEC, under Rule 3-13 of Regulation S-X, allowed DEC to omit Rule 3-05 historical financial statements and Article 11 pro forma information for Sheridan and instead file unaudited oil and gas reserve information for 2025 in satisfaction of those requirements.
TRUE000192244600019224462026-04-302026-04-30

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 8-K/A
CURRENT REPORT
Pursuant to Section13 or 15(d)
of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): April 30, 2026

Diversified Energy Company
(Exact name of registrant as specified in its charter)
Delaware
001-41870
41-2283606
(State or Other Jurisdiction of Incorporation)
(Commission File Number)
(IRS Employer Identification No.)
1600 Corporate Drive Birmingham, Alabama
35242
(Address of Principal Executive Office)
(Zip Code)
Registrant’s Telephone Number, Including Area Code: (205) 408-0909
(Former Name or Former Address, if Changed Since Last Report): Not Applicable

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:
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 per share
DEC
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. ☐




EXPLANATORY NOTE
On May 1, 2026, Diversified Energy Company (the “Company”) filed with the Securities and Exchange Commission (the “Commission”) a Current Report on Form 8-K (the “Original Report”) to disclose that it had closed on the previously announced acquisition by Diversified Production LLC, a wholly-owned subsidiary of the Company, of certain oil and natural gas wells, leasehold interests and related assets located in certain counties in east Texas, including Cherokee, Harrison, Nacogdoches, Panola, and Rusk Counties (the “Transaction”), from Sheridan Holding Company III, LLC (the “Seller”), pursuant to the purchase and sale agreement described in the Original Report.

The Company is hereby filing this Current Report on Form 8-K/A (this “Amendment”) to amend Item 9.01 of the Original Report to provide the information described below. Except as set forth herein, this Amendment does not amend, modify or update any other information in the Original Report. This Amendment should be read in conjunction with the Original Report, which provides a more complete description of the Transaction.

In the Original Report, the Company stated that it would file the historical financial statements required by Item 9.01(a) of Form 8-K and the pro forma financial information required by Item 9.01(b) of Form 8-K relating to the Transaction (collectively, the “Financial Statements”) by amendment to the Original Report no later than 71 days from the date on which the Original Report was required to be filed. The Company has since obtained relief from the staff of the Commission (the “Staff”), pursuant to the Staff’s authority under Rule 3-13 of Regulation S-X, from the requirements of Rule 3-05 of Regulation S-X and of Article 11 of Regulation S-X to provide such Financial Statements. As a result, the Company will not file the Financial Statements previously referenced in the Original Report and hereby amends the Original Report to eliminate references to any subsequent filing of such Financial Statements.
Item 9.01
Financial Statements and Exhibits
(a)    Financial Statements of Business Acquired
Pursuant to the authority granted under Rule 3-13 of Regulation S-X, the Staff is permitting the Company to substitute unaudited disclosures about the Seller’s oil and gas producing activities for the year ended December 31, 2025, consistent with Rule 3-05(f)(1) (the “Unaudited Oil and Gas Reserve Information”) in lieu of the historical financial statements that would otherwise be required by Item 9.01(a) of Form 8-K. The Unaudited Oil and Gas Reserve Information is filed herewith as Exhibit 99.1 and is incorporated by reference herein.

(b)    Pro Forma Financial Information
Pursuant to the authority granted under Rule 3-13 of Regulation S-X, the Staff is permitting the Company to substitute the Unaudited Oil and Gas Reserve Information in lieu of the pro forma financial information that would otherwise be required by Item 9.01(b) of Form 8-K. The Unaudited Oil and Gas Reserve Information is filed herewith as Exhibit 99.1 and is incorporated by reference herein.

(d)    Exhibits
Exhibit No.
Description
99.1
Unaudited Oil and Gas Reserve Information.
104
Cover Page Interactive Data File (embedded within Inline XBRL document)



SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.
Diversified Energy Company
July 14, 2026
By:
/s/ Benjamin M. Sullivan
Date
Benjamin M. Sullivan
Senior Executive Vice President, Chief Legal and Risk Officer and Corporate Secretary


Exhibit 99.1
Unaudited Oil & Gas Reserve Information
Sheridan Holding Company III (“Sheridan”) Asset Acquisition
On April 30, 2026, Diversified Energy Company (the “Company”), through its wholly-owned subsidiaries, acquired certain oil and natural gas wells, leasehold interests and related assets located in certain counties in east Texas, including Cherokee, Harrison, Nacogdoches, Panola, and Rusk Counties (the “Sheridan Transaction”) from Sheridan. Given the concentration of assets, this transaction was considered an asset acquisition rather than a business combination. The Company paid cash consideration of approximately $236 million, inclusive of customary purchase price adjustments.
Estimated Quantities of Proved Oil and Natural Gas Reserves
The following tables present information regarding net proved oil and natural gas reserves attributable to the Company's interests in the acquired Sheridan proved properties as of December 31, 2025, along with a summary of changes in quantities of net remaining proved reserves during the year ended December 31, 2025. The information set forth in the tables regarding historical reserves of Sheridan is based on reserves reports prepared by Sheridan’s petroleum engineers as of December 31, 2025 in accordance with Securities and Exchange Commission’s (“SEC”) rules.
The reserve estimates attributable to Sheridan at December 31, 2025 and the summary of changes in quantities of net remaining proved reserves during the year ended December 31, 2025 presented in the table below were prepared in accordance with the authoritative guidance of the SEC on oil and natural gas reserve estimation and disclosures.
Reserve estimates are inherently imprecise and are generally based upon extrapolation of historical production trends, analogy to similar properties and volumetric calculations. Accordingly, reserve estimates are expected to change, and such changes could be material and occur in the near term as future information becomes available.

Natural Gas (MMcf)
Total proved reserves, beginning of period
    325,801    
Revisions of previous estimates
    25,969    
Extensions, discoveries and other additions
    5,332    
Production
    (17,093)
Purchase of reserves in place
    —    
Sales of reserves in place
    —    
Total proved reserves, end of period
    340,009    
Proved developed reserves

Beginning of period
    325,801    
End of period
    340,009    
Proved undeveloped reserves:

Beginning of period
    —    
End of period
    —    

1


Exhibit 99.1

NGLs (MBbls)
Total proved reserves, beginning of period
    17,590    
Revisions of previous estimates
    831    
Extensions, discoveries and other additions
    258    
Production
    (917)
Purchase of reserves in place
    —    
Sales of reserves in place
    —    
Total proved reserves, end of period
    17,762    
Proved developed reserves

Beginning of period
    17,590    
End of period
    17,762    
Proved undeveloped reserves:

Beginning of period
    —    
End of period
    —    


Oil (MBbls)
Total proved reserves, beginning of period
    5,013    
Revisions of previous estimates
    235    
Extensions, discoveries and other additions
    200    
Production
    (243)
Purchase of reserves in place
    —    
Sales of reserves in place
    —    
Total proved reserves, end of period
    5,205    
Proved developed reserves

Beginning of period
    5,013    
End of period
    5,205    
Proved undeveloped reserves:

Beginning of period
    —    
End of period
    —    
Standardized Measure of Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves
The following table presents the standardized measure of discounted future net cash flows relating to the proved oil and natural gas reserves of Sheridan as of December 31, 2025. The standardized measure shown below represents estimates only and should not be construed as the current market value of the acquired estimated oil and natural gas reserves attributable to the Sheridan Transaction.
(In thousands)

Future cash inflows
$    1,647,328    
Future production costs
    (654,982)
Future development costs
    (84,266)
Future income tax expense
    (8,649)
Future net cash flows
    899,431    
10% annual discount for estimated timing of cash flows
    (555,231)
Standardized Measure
$    344,200    
2


Exhibit 99.1
The following table sets forth the principal changes in the standardized measure of discounted future net cash flows applicable to estimated net proved oil and natural gas reserves of Sheridan as of December 31, 2025:
(In thousands)

Standardized Measure, beginning of year
$    249,391    
Sales and transfers of natural gas and oil produced, net of production costs
    (46,038)
Net changes in prices and production costs
    97,131    
Extensions, discoveries, and other additions, net of future production and development costs
    12,892    
Acquisition of reserves in place
    —    
Divestiture of reserves in place
    —    
Revisions of previous quantity estimates
    24,500    
Net change in income taxes
    (607)
Previously estimated development costs incurred during the year
    1,537    
Changes in production rates (timing) and other
    (19,807)
Accretion of discount
    25,201    
Standardized Measure, end of year
$    344,200    

3

Filing Exhibits & Attachments

4 documents