Duncan's western heritage began as an early settlement built around a trading post owned by William Duncan along the Chisholm Trail in southwest Oklahoma. Cowboy camps spawned by the cattle drives were plentiful in the area around Duncan because of running streams and lush grasses. The official birth date of Duncan is June 27, 1892, which was marked by the arrival of the first scheduled passenger train on the new Rock Island Railroad, which had recently been completed through Duncan. When Stephens County was created with statehood in 1907, Duncan was named the county seat and quickly outgrew surrounding towns. Duncan prospered with cotton as a main crop. The oil industry quickly brought greater prosperity to Duncan during the 1920s when Stephens County's oil fields became and remained Oklahoma's highest producing areas until the 1980s. Earl P. Halliburton established an oil field servicing business in Duncan, which has become a world-wide operation still known as Halliburton. Today, Duncan celebrates its rich western heritage with multiple monuments marking the historic Chisholm Trail, an annual Founder's Day event, historical sidewalks along Main Street that offer details of Duncan's history and two outstanding museums. Duncan continues to progress forward as it supports expanding educational opportunities for youth and adults, steadily increases health care facilities and attracts businesses to the area that include high-tech industries, distribution and oil field services. Citizens of Duncan enjoy a city with immense social and recreational activities for all ages and an exceptionally low crime rate. Visitors to Duncan can experience western heritage at the award-winning Chisholm Trail Heritage Center. They are also pleased to find a multitude of cultural and outdoor recreational opportunities, as well as indoor meeting and event facilities. The Chamber works closely with Duncan Area Economic Development Foundation, The City of Duncan elected officials and staff, The Duncan Convention & Visitors Bureau and The Stephens County Fairgrounds & Expo Center to actively promote the community. The mission of the Duncan Chamber of Commerce and Industry is to provide leadership in improving the business climate and quality of life by mobilizing community resources. The Chamber is a voluntary membership-based organization of businesses, organizations, professionals and individuals who have joined together to engage in projects that create a positive economic impact to the community. The Chamber is governed by a voluntary Board of Directors elected from its membership. Many other members serve on Chamber committees and task forces to provide leadership in accomplishing goals set forth in the Program of Work.