Queensland-based Wide Bay Australia completed the integration of merger partner Mackay Permanent at the end of May, including all relevant approvals from various regulators.Synergy savings have been projected at between $4 million and $6 million for financial year 2009, with Ron Hancock, managing director at Wide Bay, maintaining profit guidance."We still expect to achieve the earlier forecast of $18.2 million, we are still on target."This would be a twelve per cent increase on the previous year.The Wide Bay residential lending book is around $1.6 billion, and Hancock has not ruled out other mergers to grow the business."To talk to mutuals and credit unions is pretty difficult because of the mutual situation, with the one vote per member, but we are in the market to look at any opportunities that come along."Potential targets could be The Rock, which currently has a mortgage book around $1.1 billion;Queensland Teachers, with residential lending approaching $700 million; Queensland Police (approximately $340 million); or Queensland Country (approximately $190 million).Wide Bay securitisation levels are currently around $900 million, as wholesale funding accounts for 60 per cent of funding, with the remaining 40 per cent retail deposits.