Tag Oil said its chief operating officer has resigned from his post.
Frank Jacobs said he was standing down from the role to pursue other opportunities elsewhere.
The New Zealand oil and gas producer said it a search for a replacement would now commence.
Toby Pierce, chief executive, said: “We at TAG Oil wish Frank all the best in his future endeavors. Frank worked closely with our team in New Zealand and helped focus our operational activities. And while he will be missed, I’m confident the strong team we have in place will continue the process of re-aligning TAG Oil’s asset base, and keeping the company healthy through what could be a lengthy low oil price environment.”