The success of the Oswald series allowed the Walt Disney Studio to grow to a staff of nearly twenty. Walt's weekly salary from the series was $100 while Roy Disney's was $65. The Disney brothers earned $500 per Oswald short and split the year-end profits, with Walt receiving 60% ($5,361), and Roy receiving 40% ($3,574). With income gained from the Oswald series, Walt and Roy purchased ten acres of land in the desert. They also invested in an oil-drilling venture. Iwerks also invested his income in several stone mills to crush paint pigment he used to make paint formulas that were utilized by animators for decades.