RockRose Energy PLC is a United Kingdom-based oil and gas production and infrastructure company. The Company focuses on onshore and offshore production opportunities and infrastructure projects. Its operations include the Blake Field, the Ross Field, the Nelson Field, the Howe Field, the Galahad Field, the Mordred Field, the Tors Field Unit area, the Grove Field Unit Area, Seven Seas and Netherlands assets. Its subsidiaries include Marathon Oil U.K. LLC (MOUK) and Marathon Oil West of Shetland Limited (MOWOS). MOUK holds interests of approximately 26% in license P313 and 40.0% in licenses P340 and P108, which together comprise the Greater Brae Area. MOWOS holds approximately 28% interest in the BP-operated Foinaven field, as well as interests inthe Foinaven East, T25, and T35 satellite accumulations.