What happened Shares of Liberty Oilfield Services (NYSE: LBRT) had slumped nearly 15% by 2:45 p.m. EDT on Wednesday. Weighing on the oilfield service stock was its third-quarter report. So what Liberty Oilfield Services reported revenue of $654 million, which was up 12% from the second quarter. However, it posted a net loss of $39 million, or $0.22 per share, which missed analysts' expectations. The consensus estimate was that it would report a loss of $0.08 per share. Image source: Getty Images. On a positive note, Liberty benefited from higher activity levels and service pricing during the period, which drove the sequential revenue growth. However, cost inflation and the pandemic's impact on global supply chains and labor availability impacted margins. The company noted that costs rose faster than it could raise its prices. It estimates that it wasn't able to pass $12 million of logistics costs through to customers in the quarter because they rose so rapidly. Liberty also unveiled that it acquired PropX for $90 million. It's a leading last-mile provider of proppant delivery solutions in North America, including proppant handling equipment and logistics software. Liberty believes PropX will help reduce the environmental impact and cost of well completions for its customers. Now what Liberty Oilfield Services continues to feel margin pressure. Lower activity levels over the past year due to weaker oil prices had put pressure on its pricing. While that headwind is fading, a new one has emerged in cost inflation. The company expects this issue to persist through the fourth quarter, though it's actively looking for ways to mute its impact. That new headwind could keep the pressure on Liberty's stock price in the near term. 10 stocks we like better than Liberty Oilfield Services Inc.When our award-winning analyst team has a stock tip, it can pay to listen. After all, the newsletter they have run for over a decade, Motley Fool Stock Advisor, has tripled the market.* They just revealed what they believe are the ten best stocks for investors to buy right now... and Liberty Oilfield Services Inc. wasn't one of them! That's right -- they think these 10 stocks are even better buys. See the 10 stocks *Stock Advisor returns as of October 20, 2021 Matthew DiLallo has no position in any of the stocks mentioned. The Motley Fool has no position in any of the stocks mentioned. The Motley Fool has a disclosure policy.Source