Athlon Energy Inc. (NYSE: ATHL) closed a previously announced secondary public offering of 16,100,000 common shares, the company said Feb. 12.

The shares were sold at $32 each, and the offer was upsized to 14,000,000 shares, up from the original 12,000,000, the company said. An underwriters’ option of 2,100,000 shares was included in the 16,000,000 shares, the company said.

The public offering was made by certain selling stockholders affiliated with private-equity firm Apollo Management Holdings LP, the company said.

Athlon did not receive any proceeds from the offering and did not sell any common shares, the company noted.

Citigroup Global Markets Inc. and Goldman Sachs & Co. (NYSE: GS) led as joint book-running managers, the company said. Other book-running managers were BofA Merrill Lynch, Barclays Capital Inc., RBC Capital Markets LLC, Tudor, Pickering, Holt & Co. Securities Inc., UBS Securities LLC and Wells Fargo Securities LLC, the company said.

Athlon Energy, based in Fort Worth, Texas, is an oil and natural gas E&P company focused on the Permian Basin.