Round 3 at 2012 Shell Houston Open

1 of 6 EricKayne / AP
Louis Oosthuizen will take a two-shot lead into the final round after firing a second straight 66.
2 of 6 Matt Sullivan / Getty Images
Hunter Mahan is alone in second place after a 65.
3 of 6 Matt Sullivan / Getty Images
Phil Mickelson is six shots back after making three birdies and one bogey in the third round.
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Brian Davis is three shots back after a Saturday 69.
5 of 6 Matt Sullivan / Getty Images
Angel Cabrera plummeted out of contention after a 76.
6 of 6 Matt Sullivan / Getty Images
Jeff Maggert led through two rounds, but shot a 76 in the third round and to fall nine shots off the lead.