In the 7,318 at-bats in his pro career, O’Neill has recorded a batting average of .288 with 2,105 hits. He has gone yard 281 times, as well as 3,441 total bases and also a -.018 slugging percentage. O’Neill has earned a walk 892 times while fanning on 1,166 chances. He is sitting with 1,041 runs in addition to having 1,269 RBIs. His OBP is .363 and he holds a career OPS of .345.