Krause spent 12 years in Oakland. In his first season there, he set career-highs in wins and innings pitched in the long PCL season, going 28–26 with a 2.35 ERA in 428.2 innings. He continued to pitch well for the Oaks over the next decade, becoming a fixture in the starting rotation and winning over 20 games two more times.
Krause committed 12 years to Oakland, where he achieved notable highs in victories and pitches thrown during his inaugural campaign, recording a 28–26 record with a 2.35 ERA in 428.2 innings. He remained a consistent presence in the starting rotation for the Oaks over the subsequent decade.