As U.S. shale sinks, pipeline fight sends woes downstream

By Tom Hals WILMINGTON, Del. (Reuters) - Within weeks, two low-profile legal disputes may determine whether an unprecedented wave of bankruptcies expected to hit U.S. oil and gas producers this year will imperil the $500 billion pipeline sector as well. In the two court fights, U.S. energy producers are trying to use Chapter 11 bankruptcy protection to shed long-term contracts with the pipeline operators that gather and process shale gas before it is delivered to consumer markets. The attempts t