The purpose of this research project is to determine if use of optimized target oxygen strategy during delivery room resuscitation can reduce oxidative stress in premature newborns. Objective is to compare oxidative stress markers between preterm neonates resuscitated in the delivery room using three different target oxygen strategies. OX50 target oxygen strategy is currently in use and recommended by neonatal resuscitation program. In this strategy oxygen is adjusted to meet the goal transitional saturations which are approximated 50th centile saturations observed in healthy term newborns. In OX25 target oxygen strategy oxygen will be adjusted to meet the goal transitional saturations which are 25th percentile transitional saturations observed in healthy term newborns. In OX75 target oxygen strategy oxygen will be adjusted to meet the goal transitional saturations which are 75th percentile transitional saturations observed in healthy term newborns.