The Parco Inn was built as the architectural highlight of Wyoming's most elegant company town. Frank Kistler, founder of the Producers and Refiners Oil Company (PARCO), hired the Denver-based architectural firm of Fisher and Fisher to design an innovative company town that was not only functional but aesthetically pleasing as well, and the town was completed in 1925. Designed in the Spanish Colonial motif, with tile roofs, stucco exteriors, and iron balconies, the sixty-room Parco Inn opened for business on May 31, 1925, spanned an entire block, and featured two five-story bell towers. Single-story wings extended from both sides of the hotel to house shops and other businesses. A long arched vestibule led to the tiled main lobby, where wrought iron balconies on the second floor overlooked the lobby below, and twin stairways led to the upper floors. Exposed hand-painted cedar beams, featuring stencils designed by Thomas Arrak of Denver, supported stained glass skylights. Other notable architectural details included arched colonnades, impost moldings, dentiled string cornices, neo-baroque spiral columns, a ballroom, and a large fireplace. Although guests could dine in the Inn's coffee shop, the Parco Inn was most noted for its famous Fountain Room restaurant, where live trout were stocked in the pool and guests could order the freshest fish in Wyoming. Parco fell on hard times during the Great Depression, and in 1934 the town site, refinery, and oil fields were sold to Harry Sinclair's Consolidated Oil, later named the Sinclair Refining Company. The town's name was changed to Sinclair in 1942, and in 1967 the Sinclair Refinery Company sold most of the town site to local residents, with the Parco Inn under private ownership since that time.