The company quickly expanded across the Midcontinent oil fields, focusing on exploration, production, and later refining. By 1925, it had become the nation's largest producer of natural gas liquids. In 1927, the name "Phillips 66" was introduced, inspired by a test drive that reached 66 miles per hour on U.S. Route 66. The brand became a symbol of quality fuel and reliable roadside service across America. Today, the legacy of that 1917 incorporation lives on through the global operations of ConocoPhillips and the independent Phillips 66 company.