Austria-based oil and gas company OMV has agreed to sell 19 onshore oil fields in Romania for an undisclosed purchase price to Mazarine Energy, an E&P company backed by private-equity fund Carlyle Group, the companies said in a statement.

The transaction is expected to be completed in late fourth-quarter 2016 when Mazarine Energy Romania will assume operatorship of the fields and take on more than 200 staff currently employed by OMV Petrom.

The 19 fields are part of a package that has been available for transfer since 2014 as part of field portfolio optimization. In 2015, the fields had a cumulative daily production of about 1,000 barrels of oil equivalent per day, representing less than 1% of OMV Petrom's daily production.

Carlyle International Energy Partners raised a $500 million equity line for investments in oil and gas assets.