REG-Diversified Energy Achieves Gold Reporting in the United Nations’ Oil & Gas Methane Partnership 2.0 for Continued Commitment to Methane Reduction

Diversified EnergyAnnouncement

27/10/2025 10:00

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Diversified Energy Achieves Gold Reporting in the United Nations’ Oil & Gas
Methane Partnership 2.0 for Continued Commitment to Methane Reduction

Marks Fourth Consecutive Year of Recognition from an Organization Whose
Protocol is Based on a Comprehensive, Measurement-Based Reporting Framework

Diversified Energy (NYSE: DEC; LSE: DEC) is pleased to announce that the Oil &
Gas Methane Partnership 2.0 (OGMP 2.0) has awarded Diversified the Gold
Standard Reporting certification, its highest level of achievement.
Diversified has been a reporting member of the organization since May of 2022,
and this recognition validates the Company’s commitment to reducing its
methane emissions and providing transparent reporting of its measurement-based
emissions data to the highest OGMP 2.0 standard available.

OGMP 2.0, a voluntary and multi-stakeholder initiative co-sponsored by the
United Nations Environment Program, Environmental Defense Fund, and the
Climate and Clean Air Coalition, is the only comprehensive, measurement-based
reporting framework created to accurately and transparently report methane
emissions for the oil and gas industry. By awarding the Gold Standard
Reporting certification, the OGMP 2.0 recognizes that Diversified has
demonstrated its commitment to setting aggressive and achievable multi-year
plans designed to accurately measure and significantly reduce methane
emissions.

Rusty Hutson, Jr., CEO of Diversified, commented:

“Our team is highly focused on producing natural gas in the most efficient
and environmentally responsible manner possible, so we value the OGMP’s
recognition of our work. We are proud of the results achieved by leveraging
technology and deploying innovative approaches to unlock ever-improving
emission performance. The Gold Standard Reporting certification complements
our already strong sustainability actions, highlighting our commitment to
transparency and validating the important work we’re doing to responsibly
produce natural gas while making methane leaks rare.”

To reach OGMP 2.0’s highest Gold Standard recognition, Gold Standard
Reporting, Diversified has set emissions reduction targets which are largely
driven by its commitment to annual capital investments in handheld and aerial
emission detection technologies and to eliminating, converting or
transitioning natural gas-driven pneumatic devices. Importantly, achieving the
Gold Standard Reporting certification positions Diversified to offer
Responsibly Sourced Gas (RSG), a differentiated commodity sought by utilities
and Liquified Natural Gas (LNG) buyers for its verified low-methane
attributes.

Diversified joins over 65 companies across the globe (one of only 9 US-based
upstream companies), including ConocoPhillips, Devon, Diamondback, and EQT, in
the OGMP Partnership that has achieved Gold Standard status, which represents
17 percent of the world’s oil and gas production. The United Nations’
International Methane Emissions Observatory’s (IMEO) recently released “An
Eye on Methane” report which explains that the IMEO views OGMP 2.0 as the
standard for transparency, catalyzing collective action amongst member
companies to share good practices on methane measurement and management.

For further information, please contact:

 Diversified Energy Company PLC      +1 973 856 2757        
 Doug Kris                           dkris@dgoc.com         
 www.div.energy                                             
                                                            
 FTI Consulting                      DEC@fticonsulting.com  
 US & UK Financial Public Relations                         
                                                            

About Diversified Energy

Diversified is a leading publicly traded energy company focused on natural gas
and liquids production, transport, marketing, and well retirement. Through our
unique 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.