Don’t look now, but several new issues in the energy space have started work on the right sides of bases, including fast-growing oil and gas producer Athlon Energy. The firm, with a $4.4 billion market cap, went public in August 2013 at 20 and closed at 27.56 on its first day of trading. Athlon Energy (ATHL) has 140,000 acres in the northern Midland Basin of the Permian Basin.