WTI crude up for the second day

Tighter energy inventories -- especially gasoline and distillates -- helped oil to a second day of gains on Wednesday. From Monday's low, WTI has now climbed 4.25% to $49.07.

The next big hurdle to watch is $49.65. That's the late-March high and the 38.2% retracement of the early-March swoon.

Beyond that, the psychological $50 barrier and a cluster of resistance in the $50.44 to $51.24 range is in play. That includes the 100-day moving average at $50.75.