For the week ending on July 18, 2014, the number of horizontal rigs increased by 12, from 1,276 a week ago to 1,288. This total broke the record number of horizontal rigs set during the previous week.
For the week ending July 11, 2014, the number of horizontal rigs increased by eight to 1,276 from 1,268 a week ago. However, the number of vertical rigs decreased to by seven to 377 from 384 recorded ...
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