Oil! by Upton Sinclair

They watched for a while, and then they remembered they had a well of their own, and drove back to Paradise, and across the valley to the Watkins ranch. They had a long talk with the foreman; Dad examined the core, and the report of the chemist who had tested the oil; he saw that the "washing" was going all right, they would be ready for the cementing off in the morning. Everybody was on tiptoe; they were going to do their job better than the "Excelsior Pete" crowd, and not smear all the landscape with crude petroleum. The tankage was at the railroad depot, and they inspected the foundations, just completed for the tanks.

Everything "hunkydory," said Dad. They drove over to the Rascum place and saw Ruth, and Bunny got on his hunting-clothes, and got a few quail before sundown; and then they had supper, and Paul told them all the gossip about the well, also how much money Eli had collected for his temple. After supper they went back to the well -- they just couldn't keep away! It was a crisp cold evening, a new moon in the sky, a big white star just over it -- everything so beautiful, and Bunny so happy, he owned a "wildcat," and it was "coming in," it was going to yield him a treasure that would make all the old-time fairytales and Arabian Nights adventures seem childish things. They were lifting the "water-string" now -- a process necessary to cementing off; the casing at the bottom had to be raised, so that the cement could be forced under. It was difficult, for the casing was wedged, and they had to put down a tool known as a "jar," which struck heavy blows and shook the casing loose. Standing on the derrick platform, Bunny listened to these blows, far down in the earth; and then suddenly came a sound, the like of which had never assailed his ears in all his life, a sound that was literally a blow on the side of his head; it seemed as if the whole inside of the earth suddenly blew out. That tremendous casing-head, with its mass of cement, which Dad had said would hold down Mt. Vesuvius, went suddenly up into the air; straight up, with the big fourteen inch casing following it, right through the top of the derrick, smashing the crown block and tackle as if these had been made of sugar candy!