19) C

Number of wells drilled in Texas from 2005-2011 = 33,753 ≈ 34000
Number of wells drilled in Texas in 2012 = 13,540 ≈ 14,000
Percentage of wells drilled in 2012 compared 2005-2011 = (14,000/34000) x 100 = 41% ≈ 40%
Number of wells drilled in Oklahoma in 2005-2011 =2694 ≈ 2700
40% of 2700 = 1080
This is roughly equal to 1081, which is option C

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