In July 2018, it was reported that INEOS left licences P1026, P1191 and P1272 which contain the Rosebank discovery. Suncor acquired its 10% interest increasing its interest to 40% in each licence. Further to this deal INEOS also left licence P1830 which contains the Blackrock prospect on 29 June 2018 with Suncor acquiring its entire 25% interest in the licence. It is understood that Chevron has extended its re-tender for the Rosebank field development drilling campaign. The plan is to drill 11 top holes commencing in 2020 until 2021 lasting approximately 120 days. The main drilling programme will commence in 2022 with the drilling of 17 subsea wells â nine producers and eight water injectors. The field will be developed via a Floating Production, Storage and Offloading unit. A Final Investment Decision for the project is planned for early 2019. Seismic interpretation is ongoing over the entire licence, the results of which will be used in final prospect definition. An exploration well is planned to drill Blackrock in 2019.  Rosebank was discovered in August 2004 by well 213/27-1Z which encountered two reservoirs â Rosebank and Lochnagar - with a total net pay of 52 m. Rosebank has a Paleocene reservoir and Lochnagar has an Upper Jurassic reservoir. Appraisal well 205/1-1, drilled in 2007 on the Rosebank structure, tested 6,000 b/d of good quality oil with API values of 37Â°. The field is situated in water depths of approximately 1,100 m. Between April and August 2011 a 350 sq km High Density 3D OBN survey was performed over Rosebank with SeaBirdâs âMunin Explorerâ. This was the second phase of the Rosebank High Density 3D survey. The first stage was shot in 2010 and covered an area of 256 sq km. Front End Engineering Design studies commenced in 2012. In 2013 Chevron submitted and Environmental Statement for the project. The produced oil was to be shuttled by tanker, while gas will be exported via a newly installed pipeline. Back when the Environmental Statement was submitted it was thought that peak oil production was expected to reach 82,000 b/d with peak gas production, expected three years after the initial oil production, at 134 MMcf/d.  The Blackrock prospect is situated between the Cambo and Rosebank fields and has a Colsay / Hildasay reservoir target. The licence, P1830, was awarded in the 26th Offshore Licensing Round. The planned 2019 exploration well, if successful, could add substantial resources to the planned area development.  Interest in P1026, P1191 and P1272 is held by Chevron North Sea Limited (40% + operator), Suncor Energy (40%) and Siccar Point Energy (20%). Interest in P1830 is held by Siccar Point Energy (52.5% + operator), Suncor Energy (25%) and Shell UK Ltd (22.5%).
Ineos has withdrawn from P1026, P1191 + P1272 containing the Rosebank discovery, its 10% going to Suncor (->40%). Ineos also left P1830 (Blackrock prospect), Suncor also taking on its 25%.