Question: Gilbert Blount worked under what person who is considered  "one of the most ingenious and prolific figures in engineering history" and "one of the 19th century engineering giants"?
Sentence (from "History of oil in California through 1930"): While California’s production of excavated oil increased significantly during the early 20th century, the accelerated drilling resulted in an overproduction of the commodity, and the federal government unsuccessfully made several attempts to regulate the oil market.
Relevant evidence: No