http://webapps.rrc.state.tx.us/DP/drillDownQueryAction.do?fromPublicQuery=Y&name=R.H.%2BPICKENS%252C%2BET%2BAL%2B%2527B%2527&univDocNo=490399570
http://webapps.rrc.state.tx.us/DP/drillDownQueryAction.do?fromPublicQuery=Y&name=R.H.%2BPICKENS%252C%2BET%2BAL%2B%2527B%2527&univDocNo=490392443
http://webapps.rrc.state.tx.us/DP/drillDownQueryAction.do?fromPublicQuery=Y&name=R.%2BH.%2BPICKENS%252C%2BET%2BAL%2B%2527B%2527&univDocNo=490404691