Halliburton (HAL) released its financial results for Q2 2018 on July 23. On that day, HAL’s stock price reacted negatively, falling 8.1% to $41.54 from the previous day’s close. Flat Q3 2018 earnings estimates, supply-related issues in the Permian, and cost inflation likely caused investors to take a cautious stance on Halliburton’s stock. These factors could have created headwinds for HAL stock on July 23. West Texas Intermediate (or WTI) crude oil price decreased 3.6% on July 23 over the previous day’s close.