“If people want to build pipelines in the United States, they should use American steel and they should build it and create it right here,” Trump said at a Monday rally in Louisville, Kentucky. “That pipeline is going to be manufactured right here.”

The Keystone pipeline is expected to funnel over 800,000 barrels=per-day of heavy crude from Canada’s oil sands to U.S. refineries and ports along the Gulf of Mexico.

Nick Loris, an energy and environment researcher at the Heritage Foundation, said an approval would “reestablish some certainty and sanity to a permitting process that was hijacked by political pandering.”

MLPs primarily deal with the distribution and storage of energy products, so their business model is less reliant on the commodities market since MLPs profit off the quantity of oil and natural gas they are able to move around. Consequently, MLPs have historically shown a weaker correlation to energy prices over longer periods as MLPs act more like energy toll roads, profiting on the volume of oil moving through their pipelines.

For more information on master limited partnerships, visit our MLPs category.