The first wells used to search for oil were drilled more than 150 years ago. Since that time on, various innovations have been adopted to drill deeper and deeper wells thanks to which we are now able to reach oil and gas reserves located also at 12 kilometres into the earth. We have met several challenges over the years, but, because drill bits and rigs are constantly evolving by seeking new ways of getting the bit down to the depth required in a safe manner, our industry has allowed billions of barrels of oil and trillions of cubic feet of gas to be produced for industrial growth and development.