Excluding the Taylor rig manufacturing and service business line , well servicing segment profit margin was 22 % for the third quarter of 2010 and 26 % for the second quarter of 2010 . Segment profit margins in the third quarter of 2010 declined due to increased labor costs , severe weather in several operating areas , and the continued impact early in the quarter of the oil spill in the Gulf of Mexico on Basic 's barge operations .