http://webapps2.rrc.state.tx.us/EWA/drillingPermitDetailAction.do?methodToCall=searchByUniversalDocNo&universalDocNo=487681106&rrcActionMan=H4sIAAAAAAAAAM1Qy07DMBD8mnK01nYS5bKHCMEZaEUPUQ9uYqWWnIfWjgpSPp51EBKknBEX7-x4vJ6dRQKgWiRIlHdETdVENw4vDbU1nHDlr_ZspikowdciRBOtiG9iDjtdlcAKhTv1-HCsGOoEW3Leu6F7stS7GJ5nS--fY0U7sijD3sbL2B7Ge-M9EzmSjTMNh3FvDTUXpkqEGzd1WG8r6oKYDJn-1fjZrib5YyhTzVDrPIEcz7ZzQzi6mObxwB-9VJt-o1cZQsG7gOZDgdSJyzfcxqH8u7zCV04FTqaz9C2PX8OTp3qrS2ZRLgolLJoBL7zkXAsmbl__t-g_AAXJBiS3AgAA
http://en.wikipedia.org/wiki/Cathodic_protection
Thanks, Clint for posting these. I am waiting to see a couple and it seems they are getting close.