Since announcing their on market buy back of up to 10 million shares in May this year, West Perth-based oil and gas production and exploration company Tap Oil Ltd has bought almost 600,000, at a cost of just over $1 million.

Since announcing their on market buy back of up to 10 million shares in May this year, West Perth-based oil and gas production and exploration company Tap Oil Ltd has bought almost 600,000, at a cost of just over $1 million.