2011 Drilling Method Statistics
for All Drillers
 
Production Wells
 
Drilling Method # of Wells % of Total Bar Graph
Air Rotary 143 48.6% l
Mud Rotary 64 21.8% l
Flooded Reverse Circulation 3 1.0% l
Cable Tool 68 23.1% l
Auger 0 0.0% l
Dual Rotary 12 4.1% l
Direct Push 0 0.0% l
Rotasonic 0 0.0% l
Other 4 1.4% l
Total294
 
Non-Production Wells
 
Drilling Method # of Wells % of Total Bar Graph
Air Rotary 152 14.0% l
Mud Rotary 469 43.3% l
Flooded Reverse Circulation 5 0.5% l
Cable Tool 7 0.6% l
Auger 45 4.2% l
Dual Rotary 0 0.0% l
Direct Push 101 9.3% l
Rotasonic 299 27.6% l
Other 5 0.5% l
Total1083