Complex sentence: Baker, PEB-20 Casing, tubing, and wellhead leaks have occurred in recent years, including, for example, in 2013, two wells with casing leaks, four with tubing leaks, and two with leaks at the wellhead.
Split into simpler sentences: Baker, PEB-20 Casing, tubing, and wellhead leaks have occurred in recent years. For example, in 2013, two wells were found with casing leaks, four with tubing leaks, and two with leaks at the wellhead.