Since C&J's inception in 1997, our long-term goal has been to become a large-scale, geographically diversified provider of the most technologically advanced completion services. We are executing an aggressive growth strategy and the acquisition of Casedhole is a significant step in the furtherance of this goal. Since the Casedhole closing, we have executed on our plans to grow our combined organizations by leveraging our strengths. The integration process has gone smoothly and our sales force is successfully marketing our expanded range of services. We'll talk more about Casedhole later in the call.
Now on the results for the second quarter. Our team generated another solid quarter. Revenue is up 16% and our earnings rose almost 8% sequentially. Despite the impact of increased competition on utilization and pricing, our adjusted EBITDA rose 10% sequentially and our adjusted EBITDA margin hold relatively firm at 33%, just a slight decline from 35% last quarter. This growth, once again, demonstrates that our emphasis on the highest level of efficiency and superior execution generates value for our customers, as well as our shareholders.
We're pleased with this quarter's results given the headwinds we, like our peers, have faced. The considerable decline in natural gas prices over the first half of the year caused a relocation of equipment from gas-nominated markets to the oily regions. The surplus of equipment increased competition and put pressure on pricing. Fortunately, even with the influx of equipment, which had a particularly notable impact on the Eagle Ford Shale and Permian Basin, we have seen solid activity levels across these plays. While we anticipate the remainder of the year will continue to be highly competitive, it appears that the migration has run its course and that pricing may be stabilized. Additionally, the vast majority of our assets are operating in oily basins and we have plans to expand in the new unconventional resource plays as we expand our asset base. The Casedhole acquisition has provided us entry in the key areas such as the Bakken and has strengthened our position in our existing areas of operations. Our integrated sales force has already received positive customer feedback on our competitive positioning as an independent provider offering comprehensive completion services where each product stands on its own merits. When we offer our services in a combined package, we believe that we have a competitive advantage due to the best-in-class performance of each service line.