For some dealmakers the energy sector has been hot. But it all depends on which area of the market investors play in. For example, firms that invest in companies that are supported by the drilling and fracking boom are seeing opportunities abound. However, the entire sector might have a strong 2014 as more dealmakers are looking at alternative energy investments. Private equity firms specializing in natural resources, including oil and natural gas, raised $22.5 billion in 2012, more than triple the $6.8 billion they raised in 2011, according to figures from data firm Preqin. That means we should see a lot more investment in this area as PE firms put this money to work. According to a recent KPMG survey, 28 percent of mid-market dealmakers expect the energy sector to be in favor during 2014.