March 7 (Reuters) - Nuvista Energy Ltd
* Q4 FFO per share C$17.90
* will continue drilling with five rigs until spring breakup and then reduce to approximately three rigs in operation for second half of 2017
* expect 2017 capital expenditures to be at higher end of our existing capital spending guidance range of $260 - $300 million
* Says production for Q4 of 2016 was 24,716 BOE/D, an increase of 6%
* Q1 production is expected to be at or slightly below lower end of previous guidance range
* Sees annual 2017 production guidance is 28,000 - 31,000 BOE/D.
* Says achieved funds from operations of $40.7 million ($0.24/share, basic and diluted) for Q4 of 2016 Source text for Eikon: Further company coverage: