The 6666 Ranch (a.k.a. Four Sixes Ranch) is a historic ranch in King County, Texas as well as Carson County and Hutchinson County.
The main section of the ranch is located near the town of Guthrie in King County, Texas. It spans 350,000 acres of land. The main ranch house is off U.S. Highway 82. The Dixon Creek section spans 108,000 acres of land in Carson and Hutchinson counties. The Dixon Creek runs through this section of the ranch near Panhandle, Texas.
The ranch was established by Samuel Burk Burnett in 1900 after he purchased the land from the Louisville Land and Cattle Company. Legend has it that he won the ranch from a card game, where he scored four sixes. However, Burnett and his descendants have denied this folklore tale. Instead, the name comes from the first herd he raised on the ranch, which was branded "6666".
Burnett raised purebred Herefords and Durham bulls, which won national prizes at livestock shows all over the United States. He also bred purebred quarter horses. In 1918, 2,000 head of cattle were killed by a blizzard. However, three years later, in 1921, oil was found on the ranch, thus turning it into a very profitable enterprise.
After Burnett's death in 1920, the ranch was inherited by his granddaughter, Anne Valliant Burnett Tandy. She purchased Grey Badger II and Hollywood Gold, two show horses which lived on the ranch. By 1936, there were 20,000 Hereford cattle on the ranch. In the 1960s and 1970s, the barn on the ranch was used in advertisements for Marlboro, the cigarette brand. Moreover, in 1975, scenes of the movie Mackintosh and T.J. were filmed on the ranch.
In 1980, the ranch was passed on to Burnett's great-granddaughter, Anne Windfohr Marion, and his great-great-granddaughter, Wendi Grimes. Marion co-managed the ranch with her fourth husband, John L. Marion. They have bred Brangus cattle with Herefords to produce the Black Baldy, a cattle breed resistant to cedar flies. Moreover, a hundred broodmares are bred on the ranch every year.
As of 3 December 2020[update], the ranch was being sold in accordance with the will of Anne Burnett Marion, the owner who died in February 2020. It was listed on the market for a total of $347.7 million. In May 2021, a buyer group represented by western filmmaker Taylor Sheridan purchased the ranch.
The ranch has been painted by Tom Ryan and Mondel Rogers. A barn from the ranch has been moved to the National Ranching Heritage Center in Lubbock, Texas.
An eponymously named television series based on the ranch was introduced as a backdoor pilot, during the fourth season of the drama series Yellowstone, released November 7, 2021 via the Paramount+ streaming service.