This is an area where lots of pipelines converge. One of the most well-known pipelines is the Keystone Pipeline System, which includes the Keystone XL pipeline. However, it's important to note that pipeline networks can be complex and interconnected, and there may be additional pipelines in Nebraska beyond the Keystone system.
For the most accurate and up-to-date information regarding the number and specific details of pipelines in Nebraska, I recommend consulting official sources such as the Nebraska Public Service Commission, the U.S. Department of Transportation's Pipeline and Hazardous Materials Safety Administration (PHMSA), or other relevant regulatory authorities that oversee pipelines in the state.