Halliburton Company (HAL) is set to release second-quarter results on Jul 19. The current Zacks Consensus Estimate for the to-be-reported quarter is a profit of 80 cents per share on revenues of $6 billion.Let’s delve into the factors that might have influenced the oilfield service firm’s performance in the September quarter. But it’s worth taking a look at HAL’s previous-quarter performance first.Highlights of Q1 Earnings & Surprise HistoryIn the last reported quarter, this Houston, TX-based provider of te ...