Diversified Energy Company PLC announced that its Board of Directors (the "Board") has appointed Sylvia Kerrigan to join its Board as an independent non-executive director, effective 11 October 2021. Sylvia's expansive professional experience complements the Board and includes more than a decade of board room experience and several decades as an executive for the energy, industrial and transportation sectors with demonstrated expertise in environmental, social and governance ("ESG"), merger and acquisition, regulatory, risk management, cybersecurity and information privacy matters. Sylvia is the Executive Director for the Kay Bailey Hutchinson Center for Energy, Law and Business at the University of Texas ("KBH Center"). Prior to joining the KBH Center in January 2017, she worked for Marathon Oil Corporation in various roles including compliance, public policy, corporate communications and information governance and most recently served as Executive Vice President, General Counsel and Secretary until her retirement in 2017.