Gas pipeline offer

Mr. R W, thanks for your response! The second pipeline company has a name different from the first, yet rumor has it that both companies are actually one and the same. Where can I research to learn whether the first pipeline has been declared a common carrier? Is this something I should have considered before signing that first pipeline contract a couple years ago? Am I possibly locked into an agreement where I have to allow as many pipelines as needed AND locked into the same low rate I was paid for the first pipeline?