Report on payments to government for the year 2023

Kosmos Energy Ltd. has prepared a report of payments made to governments for the year ended December 31, 2023 in accordance with the Reports on Payments to Governments Regulations 2014 (2014/3209) as amended by the Reports on Payments to Governments (Amendment) Regulations 2015 (2015/1928). The Payments to Government data are reflective of select payments made to government entities by Kosmos Energy Ltd. These payments are categorized consistent with the Report on Payments to Governments Regulations 2014 (as amended in December 2015) (the Regulations).

The report of payments made to governments has been provided to the National Storage Mechanism and is available on the company's website: https://www.kosmosenergy.com/wp-content/uploads/2024/06/Kosmos-2023-Payments-to-Government.pdf

About Kosmos Energy

Kosmos is a full cycle, deepwater, independent oil and gas exploration and production company focused along the offshore Atlantic Margins. Our key assets include production offshore Ghana, Equatorial Guinea and the U.S. Gulf of Mexico, as well as world-class gas projects offshore Mauritania and Senegal. We also pursue a proven basin exploration program in Equatorial Guinea and the U.S. Gulf of Mexico. Kosmos is listed on the New York Stock Exchange and London Stock Exchange and is traded under the ticker symbol KOS. As an ethical and transparent company, Kosmos is committed to doing things the right way. The Company's Business Principles articulate our commitment to transparency, ethics, human rights, safety and the environment. Read more about this commitment in the Kosmos Sustainability Report. For additional information, visit www.kosmosenergy.com.

Investor Relations

Jamie Buckland

+44 (0) 203 954 2831

jbuckland@kosmosenergy.com

Media Relations

Thomas Golembeski

+1-214-445-9674

tgolembeski@kosmosenergy.com

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