Crisp supplied a two-run single in Oakland's six-run sixth inning, and added a two-run shot in the eighth as the A's forged a tie with Texas atop the American League West.
Jarrod Parker (11-6) remained unbeaten since May 22 -- a span of 18 starts -- limiting the Rangers to two runs on five hits over six innings. He didn't issue a walk and struck out four.
Texas starter Yu Darvish (12-7) was lit up for five runs on five hits over five innings.
Geovany Soto homered and Craig Gentry went 2-for-4 with an RBI for the Rangers.