Oil and Gas Countries - Australia - Working in Australia

Site Listings:

Australia Department of Immigration and Multicultural Affairs - (Official site) Online applications for visas and citizenship
Department of Immigration and Multicultural and Indigenous Affairs - Official site with information about work permits, immigration, forms, etc.
Petroleum Career Guide - (Australian National Training, Competency and Employment Register)
Skilled Migration to Australia - (www.workpermit.com) UK-based agency. Lots of information, incl. an online Immigration Points calculator
Working in Australia - (Department of Immigration and Multicultural Affairs)