KISTOS HOLDINGS PLC

Stakes is an oil and gas company based in Oman. In September 2026, Kistos completed the acquisition of stakes in Omani producing blocks.

UK Oil & Gas PLC (UKOG.L) is an enterprise focused on discovering and extracting petroleum resources, with operational activities in both the United Kingdom and Turkey. The company holds direct and indirect stakes in six onshore assets in Southern England, specifically across the Weald and Purbeck-Wight basins. These British landholdings collectively span approximately 689 square kilometers and cover various stages, including exploration, appraisal, development, and production. Additionally, the firm possesses a 50% ownership interest in the Resan oil appraisal and exploration license, located in southeast Turkey, which encompasses an area of 305 km². UK Oil & Gas PLC was established in 2004 and maintains its corporate headquarters in London, United Kingdom.

Savannah Energy PLC is an upstream oil and gas company focused on the exploration, development, and extraction of natural gas and crude oil. The company holds a license for the prospective Agadem Rift Basin, an area spanning approximately 13,655 square kilometers in southeastern Niger. Its portfolio further includes an 80% ownership in Nigeria's Uquo field, a 51% interest in the Stubb Creek oil and gas field, and an 80% stake in the Accugas midstream assets, all situated in southeastern Nigeria. Beyond these ventures, Savannah Energy is actively involved in developing various other energy-related projects across the African continent. Established in 2014, the firm, initially known as Savannah Petroleum Plc, adopted its current name, Savannah Energy PLC, in April 2020 and maintains its headquarters in London, United Kingdom.

NOSTRUM OIL & GAS PLCOil & GasLondon, United Kingdom

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Nostrum Oil & Gas PLC operates as an independent entity, specializing in the upstream sector of the oil and gas industry. The company is actively involved in discovering, developing, and extracting hydrocarbon resources within the Pre-Caspian Basin. Its operations include the production and sale of various commodities such as crude oil, stabilized condensate, liquefied petroleum gas (LPG), and natural gas. The Chinarevskoye field, located in North-western Kazakhstan, represents its primary and fully-owned production asset. As of December 31, 2021, Nostrum Oil & Gas PLC reported 34 million barrels of oil equivalent (mmboe) in proved and probable reserves, alongside 28 mmboe in contingent resources. Founded in 1997, the company maintains its corporate headquarters in London, United Kingdom.

ORCADIAN ENERGY PLCORCA · Oil & GasLondon, United Kingdom

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Orcadian Energy Plc, an enterprise focusing on oil and gas development, operates in the United Kingdom through its main company and affiliated entities. The firm possesses a portfolio of four licenses. A cornerstone of its assets is the Pilot Field, in which Orcadian Energy holds a complete 100% ownership stake. This significant field is estimated to contain 79 million barrels of independently audited proven and probable reserves. Established in 2014, the company's primary operational base is situated in London, United Kingdom.

BORDERS & SOUTHERN PETROLEUM PLCBOR · Oil & GasLondon, United Kingdom

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Borders & Southern Petroleum plc is an independent firm primarily engaged in the exploration and assessment of oil and gas reserves. The company's operations are concentrated around the Falkland Islands, where it boasts a full 100% ownership of three production licenses. These licenses collectively span an extensive area of roughly 10,000 square kilometers, positioned approximately 150 kilometers south-east of the islands. Established in 2004, Borders & Southern Petroleum plc is headquartered in London, United Kingdom.