Universities

www.ou.edu
http://osu.okstate.edu/
http://www.utulsa.edu/

Oil & Gas Organizations
http://www.occ.state.ok.us/
http://www.deq.state.ok.us/
http://www.rrc.state.tx.us/
http://www.access.gpo.gov/cgi-bin/cfrassemble.cgi?title=200040