Feb 7 (Reuters) - White Mountains Insurance Group Ltd -
* White Mountains reports fourth quarter results
* Reported Dec. 31, 2016 book value per share of $790 and adjusted book value per share of $794
* "Still have about $1.8 billion in undeployed capital and continue to look for opportunities"
* Net written premiums were $236 million in quarter Source text for Eikon: Further company coverage: