* BTr awards 12.837 billion pesos ($233.95 million) worth of T-bills vs 15 billion pesos offer
* BTr awards 3.781 billion pesos of 91-day T-bills at 4.664% avg yield vs previous rate 4.586%
* BTr awards 4.056 billion pesos of 182-day T-bills at 5.437% avg yield vs previous rate 5.378%
* BTr awards 5 billion pesos of 364-day T-bills at 5.717% avg yield vs previous rate 5.707%
* Details are on the BTr's website
($1 = 54.87 Philippine pesos)
(Reporting by Enrico Dela Cruz)