Kinder Morgan Inc.-backed Ruby Pipeline LLC, a natural gas pipeline joint venture with Pembina Pipeline Corp., filed to reorganize under Chapter 11 of the Bankruptcy Code in response to a $475 million unsecured bond repayment obligation.

The JV owners will continue to work with Ruby’s bondholders to work out a resolution and Kinder Morgan will continue to operate the pipeline as Chapter 11 permits daily operations to continue.

Ruby Pipeline is a 1.5 bcfd, 680-mile, 42-in. diameter pipeline system that extends from Wyoming to Oregon providing natural gas supplies from the major Rocky Mountain basins to consumers in California, Nevada, and the Pacific Northwest.