Angus Energy said it had received a letter from Surrey County Council suggesting that the company submit a planning application for the operations at the Brockham oil field associated with well BR-X4 and its inclusive sidetrack BR-X4Z.
It said this was the first formal request or formal notice received by Angus Energy either prior to or in the 7 months since 9 Mar 2017.
Angus Energy said its guidance from its announcements on 23 Oct, 22 Sep and 11 May remained unchanged.
A statement said: 'After a careful and considered review, the management team and board of directors of Angus Energy will, as operator of the licence, submit a normalisation application for the continued surface activities of the production plant required for well BR-X4 and notably, its inclusive sidetrack BR-X4Z.
'The board has determined this application - submitted without predjudice - is a prudent and pragmatic step in the best interests of all stakeholders.
'The company reiterates it has all the required permissions from all of its regulators to continue production at the Brockham oil field including the Kimmeridge layers.
'In taking this intermediate step, the company has not relinquished any rights or further options at its disposal to protect shareholders.
'The company has worked with the SCC throughout this process and will continue to do so without exception.
'Both parties continue to maintain a professional relationship and on-going communications.'
(LON:ANGS) Angus Energy Plc share price was -5.63p at 27.38p