--NY Apr crude up 15c as API stocks gain by less than expected --NY Mar heating oil up 30 points; API stock drop exceeds views --NY Mar gasoline down 11 pts as API stock drop exceeds views --API: US crude stocks up 2.235 mln barrels in latest week --API: US distillate stocks down 992,000 barrels in latest week --APIs imply US distillate demand 4.21 mln bpd vs 3.67 mln --API: US gasoline stocks down 1.045 mln barrels in latest week --APIs imply US gasoline demand 8.40 mln bpd vs 7.54 mln --API: US refineries operate at 91.3% in latest wk vs 90.1%