The case is Kelo vs. City of New London. (
Kelo v. City of New London - Wikipedia, the free encyclopedia)
It's very relevant here. The city of New London wanted to take Susette Kelo's house in order to turn it over to a private corporation, which would redevelop the land. Kelo sued, saying there was no "public use" in taking her land and turning it over to a private corporation -- the Fifth Amendment to the Constitution says "nor shall private property be taken for public use, without just compensation." . The Supreme Court ruled that the benefit that the community enjoyed from economic growth was sufficient to consider this taking to be "public use." Which pretty much upended 200 years of thinking about what was considered private property in the US.
Unless you live in one of the nine states where the state constitution defines public use more narrowly -- AZ, CA, FL, IO, OH, MI, NV, NH or WI -- this is the law of the land. The gas company could use the exact same reasoning -- economic benefit to the community -- to persuade the state to take your land on its behalf. You might not even know it was happening until the deal was done.
This is a terrible, terrible ruling, but it is the law.