The ACCC inquiry into petrol prices will hold a public hearing in Brisbane tomorrow (Tuesday, April 23).

The inquiry will hear evidence from the RACQ, Cattlemen's Union and the Queensland Grain Growers Association. A consumer association and several service station operators will also present information on how the industry operates in Queensland.

The inquiry is reviewing the present method of regulating wholesale petrol prices throughout Australia. The oil majors have already presented their case and are arguing for deregulation of petrol prices.

The Commission is also examining the disparity between city and country prices and has been asked to recommend any measures that might sharpen competition in rural markets. The ACCC is scheduled to submit its report to the Commonwealth Government by July 31.

Details of the Brisbane hearing are: Time: 10am, Tuesday, 23 April Location: The Cairns Room Sheraton Hotel 249 Turbot Street