Publication of Information Document

Gulf Keystone Petroleum Ltd. has published an information document in preparation for its shares' admission to trading on Euronext Growth Oslo, following a decision made by Euronext Oslo Børs on February 13, 2026. This document is exclusively for the purpose of this listing and is available on the company's website and the Oslo Børs NewsWeb. The announcement explicitly states it is not a prospectus and does not constitute a public offer of securities, with distribution restricted in several jurisdictions including the United States, Australia, Canada, Hong Kong, South Africa, and Japan.