Anna Anderson
Anchor opened an office in Bartlesville in 1905, secured a driller and drilled its first wildcat well, the Holland No. 1. The men struck oil on June 23, 1905. The brothers' second and third wells were dry holes, and they had barely enough money left to drill a fourth well, the Anna Anderson Number One. The Anna Anderson, completed September 6, 1905, was a gusher, and the successful well enabled the brothers to raise $100,000 through the sale of stock. The Anna Anderson was the first of 80 consecutive producing wells drilled for the brothers' company.