New Zealand Oil & Gas said the take-up of its June 2008 options has reached 90.5% with a further allotment anticipated next week.
Shares on issue have risen to 382 million from 262 million in January. The stock fell 4.4% to NZ$1.73, having reached a record NZ$1.91 yesterday.
NZOG is been reaping its 12.5% share of output from the Tui oilfield, which was 14.2 million barrels in the year ended June 30, sold at an average US$100 a barrel.
AWE is the operator of the field and largest participant, with 42.5%. Mitsui E & P Australia Pty has 35% and Pan Pacific Petroleum NL has 10%.