Petroleum Finance Weekly -- "Unit Corp. Beefs Up Its E&P Division with Petrocorp Acquisition"

May 31, 2001 Investor's Business Daily -- "Time and Patience Pay Off in Search for Rigs

December 2000 American Oil & Gas Reporter -- "Gas Driving Changing Drilling Outlook"

December 1999 Oil And Gas Investor -- "Now Hiring"

March 2000 Oil And Gas Investor -- "Wyoming"