Sentence:  Oilmen had spent weeks drilling to a depth more than 1,000 feet into Sour Springs Mound, a salt dome a few miles south of Beaumont, hoping to come into some “<WSD>Texas Tea</WSD>.” And at about 10:30 in the morning on January 10, 1901, the teacup runneth over. 
Meaning of the word marked with <WSD> tags:  Crude oil.