A petroleum company has been fined $20,000 for spilling oil into a stream in Taranaki.
Taranaki Ventures Ltd - a subsidiary of New Zealand Energy Corp - leaked about 50 litres of crude oil into a tributary of the Ngaere Stream in April 2012.
A report by Taranaki Regional Council said an equipment malfunction at Copper Moki well site caused the spillage, which took several days to clean up.
A contractor did not notify anyone and the council found out several days later when a landowner spotted oil in the stream.
The company was prosecuted for breaching the Resource Management Act.