ENEGI Oil saw its share price dive 12% after it outlined plans to add further assets to its portfolio but confirmed the focus will be on marginal fields with low-risk profiles and costs.

The company believes it can reduce the cost of developing oil and gas fields using unmanning buoys.

In July this year, Enegi and partner ABT Technology signed their first development deal in the North Sea by agreeing to acquire a 50% stake in the 10 million barrel Fyne field off the east of Scotland from Antrim Energy.

Scottish oil and gas veteran Alan Minty, executive chairman of Enegi, hailed a "transformational few months" for the business.

He said: "We will continue to build a diverse portfolio assets, but with a strong emphasis on acquiring interests in marginal fields.

"These assets are low risk and highly-appraised and, consequently, our entry cost will be low.

"We will look to develop these assets utilising ABT's buoy technology, an appropriate solution which changes the development economics, enabling the early booking of reserves and further development projects."

As well as the Fyne field Enegi, which has offices in Manchester and Aberdeen, has two further licences in the UK Continental Shelf on which it hopes to use ABT's buoy technology.

Enegi said its joint venture with ABT, called ABT Oil & Gas, is in discussions with a number of operators and has identified a number of "strong" potential targets where there is no licence holder.Mr Minty said: "Negotiations are continuing."

Enegi also has assets in Newfoundland, Canada, the Clare Basin in County Clare, Ireland, and Jordan.

Shares in Enegi closed down 1p at 7.62p.