Master Limited Partnerships (MLPs) are the energy companies of choice for investors looking for steady income without too much risk. Three energy MLPs in particular look very good, with strong track records, great future prospects, and yields above 5%. And because of a unique tax loophole, NuStar (formerly Valero) owns crude oil and refined product pipelines, and associated facilities in the U.S., the Netherland Antilles, Canada, Mexico, the Netherlands, and the U.K. Also owns asphalt refineries. Plains All American Pipeline (PAA) Today, the MLP has 9,700 miles of refined products pipelines (the largest in the United States), 1,100 miles of ammonia pipelines and 2,200 miles of crude oil pipelines. It also has the capacity to store an almost unbelievable 100 million barrels of refined products such as gasoline, diesel fuel and crude oil.