CERP.L Regulatory News (CERP)

For Immediate Release, 7am 12 June 2013

LENI GAS AND OIL PLC

("LGO" or the "Company")

Production Update

LGO today announces that Group-wide oil production from its operations in Trinidad and Spain now exceeds 400 bopd and on the 10th June 2013 total production was over 450 bopd, a new Group record.

In Trinidad, where the Company produces from the Goudron and Icacos fields, LGO's net oil production has increased to 315 bopd on the 10th June 2013.

Oil production has increased consistently since the acquisition of the Goudron field in October 2012 (LGO; 100% operator) and Goudron now contributes two-thirds of the Group total. Production growth is expected to continue through 2013 as additional wells are reactivated and placed on pump. The Company continues to operate two work-over rigs on the field installing new beam pumps and down-hole equipment which arrived in the field over the past few months. Beam pump units for 20 further wells are on order and will be delivered progressively between now and September 2013.

The Icacos Field performance (LGO; 50% non-operator) has been less strong in recent weeks and additional well work-overs are required by the operator to restore previous production levels in excess of 35 bopd (gross). Although not a significant producer to the Group, LGO expects Icacos to be back to recent levels within the next few weeks.

Production from the Company's field at Ayoluengo in Northern Spain (LGO; 100% operator) continues to perform well with oil production on 10th June 2013 of 143 bopd (FY 2012 average: 130 bopd) and it is anticipated to remain broadly at this level for the remainder of 2013. LGO is currently seeking a partner to co-invest in future production enhancement projects at Ayoluengo where a number of potential capital projects to raise production levels have been studied.

Neil Ritson, LGO Chief Executive, commented: "We continue to be ahead of our planned progress towards the 400 bopd target set by the Company for Trinidad by end year. We are continuing at an aggressive pace in Trinidad and we remain confident of the development potential in the country."

Competent Person's Statement:

The information contained in this announcement has been reviewed and approved by Neil Ritson, Chief Executive Officer and Director for Leni Gas & Oil Plc, who has over 35 years of relevant experience in the oil industry. Mr. Ritson is a member of the Society of Petroleum Engineers, an Active Member of the American Association of Petroleum Geologists and is a Fellow of the Geological Society of London.

Enquiries:

Leni Gas & Oil plc

Beaumont Cornish Limited

Old Park Lane Capital Plc

Shore Capital

Joint Broker +44 (0) 20 7408 4090

Pascal Keane

Jerry Keen (Corporate Broking)

Pelham Bell Pottinger