From the wiki.
On December 15, 2014, Keenum was signed off the Rams practice squad back to the Houston Texans. He filled a roster spot after starting quarterback Ryan Fitzpatrick broke his left leg in a game against the Indianapolis Colts on December 14, 2014, and on December 21, 2014 he won his first NFL game beating the Baltimore Ravens 25-13. On December 28, 2014 he won a second consecutive game with the Texans against the Jacksonville Jaguars 23-17.
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Baltimore game
Case Keenum HOU 20 of 42, 185, 0 TD, 1 INT, rushing: 4 for 19
Jagz game
Case Keenum HOU 25 of 35, 250, 2 TD, 1 INT, rushing: 6 for 16
avg.
22.5 of 38.5 (58%) for 217.5 (5.6 YPA), 2 TD 2 INT, rushing: 5 for 17.5