Description NuStar GP Holdings (formerly Valero GP Holdings) owns a 2% general-partner interest and a 19% limited-partner interest in NuStar Energy, which operates terminals and petroleum-liquids pipeline systems. In the US, NuStar Energy operates 8,420 miles of refined product and ammonia pipelines, 812 miles of crude oil pipelines, about 90 refined product terminal facilities, a crude oil storage facility, and two asphalt refineries. It also operates terminals in Canada, Mexico, the Netherlands, and the UK. Valero GP Holdings was controlled by Valero Energy. Following Valero GP Holdings' 2006 IPO, Valero Energy sold its interest in both Valero L.P. and Valero GP Holdings.