Analysis of information sources in references of the Wikipedia article "Blowout (well drilling)" in English language version.
One of the greatest obstacles they met with when boring was the striking a strong vein of oil, a spontaneous outburst, which shot up high as the tops of the highest trees!
One of the greatest obstacles they met with when boring was the striking a strong vein of oil, a spontaneous outburst, which shot up high as the tops of the highest trees!