Operations and Production Update

29 July 2015

NIGHTHAWK ENERGY PLC

("Nighthawk" or "the Company")

Operations and Production Update

Nighthawk, the US focused oil development and production company (AIM: HAWK and OTCQX: NHEGY), announces an operations and production update.

Highlights

· Completed 3D seismic interpretation over the two new Joint Development Areas ("Monarch JDA")

· Nine structural features in the conventional Mississippian age horizon verified through final processing of seismic data with 55-65 potential drilling locations

· Currently in the early stages of permitting multiple wells within the Monarch JDA

· Continuing with the remedial treatment program in the Spergen formation

· Average gross production first half 2015 of 1,950 bopd (1,599 bopd net*), greater than first half 2014 of 1,909 bopd gross

o Despite lack of new wells drilled, production in first half 2015 has been broadly maintained by the treatments and optimization of producing wells

· Continued work on reservoir modeling at Arikaree Creek and recovery optimisation

Monarch and El Dorado Joint Development Area

3D seismic interpretation over the two new Joint Development Areas is now complete and the Company is in the early stages of permitting multiple wells within the Monarch JDA.

As reported by the Company in late June 2015, the 3D seismic interpretation results show nine structural features in the prolific Mississippian horizon. In late June 2015, Nighthawk estimated 40 to 50 potential Mississippian Spergen drilling locations, but after completion of the interpretation this has increased to 55 to 65 potential drilling locations.

Production and Operations for the quarter ended June 30, 2015

In light of the continued depressed oil price, no new wells were drilled in the quarter ended June 30, 2015. Despite this, production was broadly maintained by a complete overview and optimization of the pumping parameters for each well. In addition, the Spergen solvent treatment program continues to yield success as it is implemented on the wells.

Nighthawk's gross and net* production for the three and six months ended June 30, 2015 is summarized below:

*Net production is based upon Nighthawk's Net Revenue Interest of approximately 82%

Arikaree Creek Reservoir Model and Reserves

Reserve evaluations and Original Oil In Place (OOIP) numbers have been validated by the Company's reserve analyst and the third party engineering group that is performing the reservoir modeling of the Arikaree Creek field. The OOIP is currently estimated to be over 16 million barrels in the Spergen zone and an additional 4 million barrels in the tripolitic chert section which sits immediately above the Spergen. The Company is currently using an estimated recovery factor for this field of 25%, which could yield 4 million barrels recoverable under primary recovery and, as previously reported, up to another 1 million barrels could be recovered under secondary recovery techniques, such as a waterflood. Currently 1.23 million barrels of oil have been produced from the Arikaree Creek field, with potentially up to another 3.77 million barrels still to be recovered under primary and secondary recovery.

Rick McCullough, Chairman of Nighthawk, commented:

"We are very excited about the number of possible drilling sites we see in the Monarch JDA. This will provide a multi-year drilling inventory of Spergen locations within our existing JDA acreage position. Following extensive reservoir modeling on our producing Arikaree Creek field, the potential upside associated with a development of a secondary recovery waterflood is exciting, as it could yield substantially more volumes of reserves and production with nominal capital expenditures. We hope to pursue this project in 2016.

"The Operations team has done a very good job maintaining production during the quarter, with the low capital solvent projects continuing to deliver good results."

Chuck Wilson, Chief Operating Officer of Nighthawk, who has over 33 years of experience in the oil and gas industry and meets the criteria of qualified persons under the AIM guidance note for mining and oil and gas companies, has reviewed and approved the technical information contained in this announcement.

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