RockRose Energy announced on 9 August 2018 that it has agreed to acquire Dana Petroleumâs 20.43% in the Arran North field which is part of the Arran development along with Arran South. The fields are located in blocks 23/11a (P1051), 23/16b (P1720) and 23/16c (359) in the Central North Sea. A Field Development Plan for Arran (fields)Â  is planned to be submitted to the Oil and Gas Authority (OGA) towards the end of September 2018. The field development is likely to be a tie-back to the Shell operated Shearwater Platform. Completion of the deal is subject to approval from the OGA and partner consents.  The plan is to develop the fields via two drill centres (North and South) with two wells on each, tied-back to the Shearwater facilities in block 22/30 via the Scoter riser. A new 60-km pipeline will be installed between Shearwater and Arran. Work is scheduled to start on the development later in 2018 with development drilling commencing in Q3 2019. First production is targeted for late 2020 and life of the field is expected to be 12 years.  The Arran fields were previously called Phyllis and Barbara. The reservoir is Paleocene Upper and Lower Forties sandstones around a salt diapir. Plans were originally in place for development in 2010, when a unitised agreement was set up and in June 2010, Serica reported that an agreement had been reached between the operators of Lomond, Columbus and Arran on a FEED for a bridge linked platform on Columbus that would connect with the Lomond platform. An ES was submitted in July 2010, which included plans for three production wells and two drill centres on the Arran development. A drill centre was to be located on both Arran North and South. Two wells were to be drilled on Arran South and one on Arran North. Arran North was to be linked to South via a 7-km pipeline, which was to be linked in turn to a new riser Bridge Linked Platform (BLP) adjacent to the Lomond platform 21-km to the south. The drill centres were to have the capacity for two additional wells each. Development was originally expected to start (with modifications to host infrastructure) in February 2011 and drilling was expected to run from July 2011 until February 2012. First gas was initially expected December 2012. In March 2013 BG informed Serica that it would not be proceeding with the construction of a BLP to the Lomond field.   Following completion of the deal interest in the field is to be held by Zennor North Sea Ltd (47.36), Shell UK Ltd (23.68%), RockRose Energy (20.43%) and Dyas (UK) Ltd (8.53%).
RockRose Energy is taking over former operator Dana Petroleumâs 20,43% interest in the Arran North and South fields in P359 + 1051 / blocks 23/11 + 23/16, for a nominal consideration. Not yet known who will take over as operator, but it is likely to be Shell as they already operate some adjacent licences and the 2 wells planned at Arran N&amp