my guess is coogee should complaint to ACCC that why ACCC has granted NWS joint selling last month and cause WA gas users have to pay up to 2 bilions more each year for gas.
http://www.wabusinessnews.com.au/login.php?url=http%3A%2F%2Fwww.wabusinessnews.com.au%2Fen-story%2F1%2F81871%2FACCC-supports-North-West-gas-marketing