North Dakota Pipeline Company system North Dakota Pipeline Company system The North Dakota Pipeline Company (NDPL) system is a 950-mile (1530 km) crude oil pipeline system that collects oil from fields in the Williston Basin in Montana and North Dakota and transports it eastward to the Mandan Refinery in Mandan, North Dakota and to other pipeline systems that carry oil to other refineries in the Midwest. About 330 miles (530 km) of pipeline are used for collection from oil wells, and this connects to a 620-mile (1,000 km) main transportation line. In addition to collecting oil from wells in the United States, it also connects
Construction of the Trans-Alaska Pipeline System cost $1.4 billion. The percentage of the pipeline owned by various companies has changed over time, but as of 2009, the primary owner was BP, which controls 46.93 percent of the pipeline. Second is ConocoPhillips Transportation Alaska Inc. with 28.29 percent, followed in order by ExxonMobil (20.34 percent), Koch Alaska Pipeline Company (3.08 percent), and Unocal Pipeline Company (1.36 percent). The pipeline also has had a human toll. Thirty-two Alyeska or contract workers were killed during the construction project. That figure does not include common carrier fatalities. Since the pipeline began operating in 1977, 10 people have been killed while