Legal Resources:

State:
Oklahoma Supreme Court Network:  http://www.oscn.net/applications/oscn/start.asp
Oklahoma State Government:  http://www.state.ok.us/

Energy/Oil & Gas:
Oklahoma Corporation Commission:  http://www.occ.state.ok.us/
Mid Continent Oil and Gas Association:  http://www.okmoga.com/
Oklahoma Independent Petroleum Association: http://www.oipa.com/custom/index.php
Oklahoma Department of Mines: http://www.mines.state.ok.us/

Corporate and Business:
Oklahoma Secretary of State: http://www.sos.state.ok.us/
Global Securities Information: http://www.gsionline.com/

Property Tax, Land Transactions and Title Examination:
American Property Tax Council: http://aptcnet.com/index.html
Oklahoma Tax Commission:  http://www.oktax.state.ok.us/
Oklahoma County Assessor: http://www.oklahomacounty.org/assessor/disclaim.htm
Oklahoma County: http://www.oklahomacounty.org/
Oklahoma County Clerk: http://www.oklahomacounty.org/coclerk/
County Records: http://www.okcountyrecords.com/index.php

Construction:
American Institute of Architects: http://www.aia.org/
Associated General Contractors of America: http://www.agc.org/index.ww

Federal:
U.S. Courts Website: http://www.uscourts.gov/
Western District of Oklahoma:  http://www.okwd.uscourts.gov/
Western District Bankruptcy Court: http://www.okwb.uscourts.gov/
Northern District of Oklahoma: http://www.oknd.uscourts.gov/okndpublic/main.nsf/index?openform              
Northern District Bankruptcy Court: http://www.oknb.uscourts.gov/
Eastern District of Oklahoma: http://www.oked.uscourts.gov/
Eastern District Bankruptcy Court: http://www.okeb.uscourts.gov/ 
U.S. Court of Appeals for the 10th Circuit:  http://www.ck10.uscourts.gov/
Supreme Court of the United States: http://www.supremecourtus.gov/       

Associations:
Oklahoma Bar Association: http://www.okbar.org/
American Bar Association: http://www.abanet.org/