Williams has been a very reliable dividend stock.Unless you work or invest in energy, you're probably unfamiliar with Williams (WMB 1.14%). Yet, you've likely felt its impact. Its 33,000 miles of pipelines transport a third of the natural gas used in the U.S., which it supplies to utilities to generate electricity and distribute to customers so they can heat their homes. Williams' gas infrastructure has become increasingly important for fueling the expected surge in electricity demand from catalysts such as ...