PDMR Shareholdings

March 20, 2026

Diversified Energy Company
("Diversified," or the "Company")

PDMR Shareholdings

Diversified Energy Company (NYSE: DEC, LSE: DEC), announces the vesting of certain Performance Stock Units (“PSU's”) and Restricted Stock Units ("RSU's") previously awarded to Persons Discharging Material Responsibility ("PDMRs"), resulting in a change to previously disclosed PDMR holdings of shares of common stock in the Company ("Common Stock").

Members of the Company's senior management vested in previously awarded PSUs and RSUs included:

• Rusty Hutson, Jr, Co-Founder and Chief Executive Officer
• Bradley Gray, President and Chief Financial Officer
• Benjamin Sullivan, Senior Executive Vice President, Chief Legal & Risk Officer and Corporate Secretary
  
  

Mr. Hutson's listed awards were solely PSUs, while the awards to Mr. Gray, and Mr. Sullivan included a mix of PSUs and RSUs. The Company provides additional information about its long-term incentive plan within its Annual Report on Form 10-K for the year ended December 31, 2025 available on its website.

To settle the awards, the Company will transfer Common Stock (net of customary withholdings, including taxes) from its Employee Benefit Trust (the “EBT”) as set forth in the table below:

	Net Award	Shares Held Post-Award	% of Issued Share Capital
Rusty Hutson, Jr	46,548	1,322,689	1.82%
Bradley Gray	35,659	227,790	0.31%
Benjamin Sullivan	26,518	88,837	0.12%

For further information, please contact:

Diversified Energy Company	[phone]
Doug Kris	[e-mail]
www.div.energy
FTI Consulting	[e-mail]
U.S. & UK Financial Public Relations

About Diversified Energy Company

Diversified is a leading publicly traded energy company focused on acquiring, operating, and optimizing cash generating energy assets. Through our differentiated strategy, we acquire existing, long-life assets and invest in them to improve environmental and operational performance until retiring those assets in a safe and environmentally secure manner. Recognized by ratings agencies and organizations for our sustainability leadership, this solutions-oriented, stewardship approach makes Diversified the Right Company at the Right Time to responsibly produce energy, deliver reliable free cash flow, and generate shareholder value.

NOTIFICATION AND PUBLIC DISCLOSURE OF TRANSACTIONS BY PERSONS DISCHARGING MANAGERIAL RESPONSIBILITIES AND PERSONS CLOSELY ASSOCIATED WITH THEM

1	Details of the person discharging managerial responsibilities / person closely associated
a)	Name	Rusty Hutson, Jr
2	Reason for the notification
a)	Position/status	Co-Founder and Chief Executive Officer
b)	Initial notification/Amendment	Initial notification
3	Details of the issuer, emission allowance market participant, auction platform, auctioneer or auction monitor
a)	Name	Diversified Energy Company
b)	LEI	529900XTQ3OKXR6P0H74
4	Details of the transaction(s): section to be repeated for (i) each type of instrument; (ii) each type of transaction; (iii) each date; and (iv) each place where transactions have been conducted
a)	Description of the financial instrument, type of instrument	Performance stock units that convert into Common Stock
	Identification code	GB00BQHP5P93
b)	Nature of the transaction	Vesting of performance stock units under the Company's equity incentive plan
c)	Price(s) and volumes(s)	Price(s)	Volume(s)
		$Nil	46,548
d)	Aggregated information	N/A single transaction
	Aggregated volume	N/A single transaction
	Price	N/A single transaction
e)	Date of the transaction	March 16, 2026
f)	Place of the transaction	Outside a trading venue (XOFF)

1	Details of the person discharging managerial responsibilities / person closely associated
a)	Name	Bradley Gray
2	Reason for the notification
a)	Position/status	President and Chief Financial Officer
b)	Initial notification/Amendment	Initial notification
3	Details of the issuer, emission allowance market participant, auction platform, auctioneer or auction monitor
a)	Name	Diversified Energy Company
b)	LEI	529900XTQ3OKXR6P0H74
4	Details of the transaction(s): section to be repeated for (i) each type of instrument; (ii) each type of transaction; (iii) each date; and (iv) each place where transactions have been conducted
a)	Description of the financial instrument, type of instrument	Performance stock units and restricted stock units that convert into Common Stock
	Identification code	GB00BQHP5P93
b)	Nature of the transaction	Vesting of performance stock units and restricted stock units under the Company's equity incentive plan
c)	Price(s) and volumes(s)	Price(s)	Volume(s)
		$Nil	35,659
d)	Aggregated information	N/A single transaction
	Aggregated volume	N/A single transaction
	Price	N/A single transaction
e)	Date of the transaction	March 16, 2026
f)	Place of the transaction	Outside a trading venue (XOFF)

1	Details of the person discharging managerial responsibilities / person closely associated
a)	Name	Benjamin Sullivan
2	Reason for the notification
a)	Position/status	Senior Executive Vice President, Chief Legal & Risk Officer and Corporate Secretary
b)	Initial notification/Amendment	Initial notification
3	Details of the issuer, emission allowance market participant, auction platform, auctioneer or auction monitor
a)	Name	Diversified Energy Company
b)	LEI	529900XTQ3OKXR6P0H74
4	Details of the transaction(s): section to be repeated for (i) each type of instrument; (ii) each type of transaction; (iii) each date; and (iv) each place where transactions have been conducted
a)	Description of the financial instrument, type of instrument	Performance stock units and restricted stock units that convert into Common Stock
	Identification code	GB00BQHP5P93
b)	Nature of the transaction	Vesting of performance stock units and restricted stock units under the Company's equity incentive plan
c)	Price(s) and volumes(s)	Price(s)	Volume(s)
		$Nil	26,518
d)	Aggregated information	N/A single transaction
	Aggregated volume	N/A single transaction
	Price	N/A single transaction
e)	Date of the transaction	March 16,2026
f)	Place of the transaction	Outside a trading venue (XOFF)