Oilfield services company Halliburton (NYSE: HAL) reported revenue ahead of Wall Street’s expectations in Q2 CY2026, with sales up 3.7% year on year to $5.71 billion. Its non-GAAP profit of $0.55 per share was 2.3% above analysts’ consensus estimates.

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Company Overview

Behind nearly every oil and gas well drilled worldwide, Halliburton (NYSE: HAL) provides drilling, completion, and production services that help oil and gas companies extract hydrocarbons from underground reservoirs.

Revenue Growth

Cyclical industries such as Energy can make mediocre companies look great for a time, but a long-term view reveals which businesses can actually withstand and adapt to changing conditions. Over the last five years, Halliburton grew its sales at a decent 10.8% compounded annual growth rate. Its growth was slightly above the average energy upstream and integrated energy company and shows its offerings resonate with customers.

Even a long stretch in Energy can be shaped by a single commodity cycle, so extending the view to ten years adds another perspective and reveals which companies are built to grow regardless of the pricing regime. Halliburton’s annualized revenue growth of 1.8% over the last ten years is below its five-year trend, but we still think the results were respectable.

This quarter, Halliburton reported modest year-on-year revenue growth of 3.7% but beat Wall Street’s estimates by 3.6%.

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Adjusted EBITDA Margin

Halliburton was profitable over the last five years but held back by its large cost base. Its average EBITDA margin of 20.3% was weak for an upstream and integrated energy business.

Analyzing the trend in its profitability, Halliburton’s EBITDA margin might have fluctuated slightly but has generally stayed the same over the last year. This raises questions about the company’s expense base because its revenue growth should have given it leverage on its fixed costs, resulting in better economies of scale and profitability.

In Q2, Halliburton generated an EBITDA margin profit margin of 18.8%, in line with the same quarter last year. This indicates the company’s overall cost structure has been relatively stable. This adjusted EBITDA beat Wall Street’s estimates by 9.8%.

Cash Is King

Adjusted EBITDA shows how profitable a company’s existing “rock” is before financing and reinvestment, while free cash flow shows how much value remains after paying to replace those wells. Because production declines over time, strong EBITDA can coexist with weak FCF if drilling is expensive or declines are steep. FCF therefore captures both operating efficiency and the cost of sustaining production.

Halliburton has shown decent cash profitability, giving it some flexibility to reinvest or return capital to investors. The company’s free cash flow margin averaged 8.3% over the last five years, slightly better than the broader energy upstream and integrated energy sector.

The level of free cash flow is important, but its durability across cycles is just as critical. Consistent margins are far more valuable than volatile swings driven by commodity prices.

Halliburton’s ratio of quarterly free cash flow volatility to WTI crude price volatility over the past five years was 5.4 (lower is better), indicating excellent insulation from commodity swings. This stability supports capital access in downturns and positions Halliburton to act as a consolidator when weaker peers are forced to retrench.

You may be asking why we wait until the free cash flow line to perform this stability analysis versus commodity prices. Why not compare revenue or EBITDA to WTI in the case of Halliburton? Because what ultimately matters is not how much revenue or profit you earn when prices are high but how much cash you can generate when prices are low. Free cash flow is the superior metric because it includes everything from hedging prowess to growth and maintenance capex to management behavior during good times and bad.

Halliburton’s free cash flow clocked in at $668 million in Q2, equivalent to a 11.7% margin. This result was good as its margin was 1.9 percentage points higher than in the same quarter last year, building on its favorable historical trend.

Key Takeaways from Halliburton’s Q2 Results

We enjoyed seeing Halliburton beat analysts’ revenue expectations this quarter. We were also glad its EPS outperformed Wall Street’s estimates. Overall, we think this was a decent quarter with some key metrics above expectations. Investors were likely hoping for more, and shares traded down 3.8% to $33.78 immediately after reporting.

Big picture, is Halliburton a buy here and now? If you’re making that decision, you should consider the bigger picture of valuation, business qualities, as well as the latest earnings. We cover that in our actionable full research report which you can read here (it’s free).