Crude oil is trading around 127.2% Fibonacci level located at 57.10- 57.30. Trading above that level will keep the bullishness, as the price is trading inside an uptrend as we can see on the image above.
Only breaching down 55.55 could change the bullish expectation, however, we prefer to see the price trading above 56.70 to keep a higher probability for more bullishness.