Oil and Gas Countries - United States - Working in the United States

Site Listings:

Canada US Employment - Agency that specializes in relocations to Canada and the US
Career Guide to Industries: Oil and Gas Extraction - (U.S. Dept. of Labor) Working conditions, earnings, outlook etc
Occupational Handbook Outlook: Petroleum Engineers - (U.S. Dept. of Labor) job description, job outlook, earnings
Petroleum Engineers - (Collegeboard.com) Detailed information on working conditions, training, earnings etc.
U.S. Citizenship and Immigration Service - Official U.S. website with general information, forms, laws, etc.