FTS International, a provider of oil and natural gas well stimulation services, filed on Friday with the SEC to raise up to $1.15 billion in an IPO. FTS is mainly responsible for assembling and distributing high-pressure hydraulic pumps to oil exploration and production companies with the goal of helping these client companies maximize overall output from their respective wells. The firm is primarily located in the southwestern US and currently operates 33 individual hydraulic fracturing fleets, capable of nearly 1.4 million-horsepower of stimulus pressure.

FTS International originally filed to go public in December 2010 under the name "Frac-Tech Services" but was acquired five months later by private equity firm RPJ Capital in a transaction that valued FTS at $5 billion. FTS follows peer company C&J Energy Services who went public in July and initially traded well but is since down 25.3% from its offer price.

The Fort Worth, TX-based company, which was founded in 2000 and booked over $1.9 billion in revenues for the 12 months ended June 30, 2011, plans to list on the New York Stock Exchange but has yet to indicate a ticker symbol. Bank of America, Goldman, Sachs, and Citigroup are the lead underwriters on the deal. Terms and timing for the offering are still to come.