BP, Chevron, Cumberland Farms and other companies that acquired former Gulf operations continued to use the Gulf name through the early 1990s. This caused consumer confusion in the US retail market as the parent companies would not accept each other's credit cards. All former Gulf stations franchised by BP and Chevron in the United States have since been converted to those names. Gulf Oil Limited Partnership (GOLP), based in Framingham, Massachusetts, has bought a license for North American rights to the Gulf brand from Chevron. Chevron still owned the Gulf brand, but was making almost no direct use of it. In January 2010, GOLP bought the entire brand from Chevron and began a nationwide expansion campaign. GOLP operates a distribution network reaching from Maine to Ohio. Most Gulf-branded filling stations in North America are owned by Cumberland Farms of Framingham, which owns a two-thirds interest in GOLP. In addition there are some independently owned franchises still operating under the Gulf brand within North America, such as the American Refining Group, which is licensed by Chevron to blend and distribute Gulf-branded lubricants.