New Jersey v. Delaware, 552 U.S. 597 (2008), is a United States Supreme Court case in which New Jersey sued Delaware, invoking the Supreme Court's original jurisdiction under 28 U.S.C. § 1251(a), following Delaware's denial of oil company BP's petition to build a liquefied natural gas pipeline and loading facility on the New Jersey side of the Delaware River. Delaware denied BP's petition because it violated Delaware's Coastal Zone Act. BP then sought New Jersey's approval of the project. Delaware objected because the construction would require dredging of underwater land within Delaware's borders, which extend to the low-tide mark of the New Jersey shore. BP's proposal had not yet passed New Jersey's approval process when New Jersey and BP filed suit against Delaware.