PETROLEUM RESOURCE RENT TAX ASSESSMENT AMENDMENT ACT 2012 (NO. 18, 2012) Table of Provisions Long Title 1 Short title 2 Commencement 3 Schedule(s) SCHEDULE 1 Extension to onshore projects etc. SCHEDULE 2 Assessable receipts SCHEDULE 3 Deductible expenditure SCHEDULE 4 Starting base for onshore petroleum projects and the North West Shelf project SCHEDULE 5 Consolidated groups SCHEDULE 6 Other amendments