High Quality Content by WIKIPEDIA articles! State Highway 150 is a state highway in McIntosh County, Oklahoma, in the United States. It is 8.77 miles (14.11 km) long, running from U.S. Highway 69 north of Eufaula to Interstate 40 west of Checotah. It runs diagonally from southeast to northwest, providing access to Lake Eufaula and Lake Eufaula State Park. SH-150 has no lettered spur routes.