Grand Mesa Pipeline Announces Successful Open Season

NGL Energy Partners, LP (NYSE:NGL) and Rimrock Midstream, LLC are pleased to announce the completion of a successful open season for the Grand Mesa Pipeline (“GMP”) originating in Weld County, Colorado and terminating at NGL’s Cushing, Oklahoma terminal. Based on the execution of long-term binding agreements with multiple shippers, GMP has more than the requisite support to commence construction of the pipeline system to accommodate the committed volumes. Pipeline operations are anticipated to commence service in 2016.

The GMP system will include approximately 550 miles of new crude oil transportation pipeline, multiple truck injection stations, over 1,500,000 barrels of operational storage, and two origination stations located near the towns of Lucerne and Kersey, Colorado. The system will allow for the batched transport of various grades of crude oil to ensure that the integrity of these differing crude qualities is retained when redelivered into the Cushing oil hub.

It is anticipated that multiple gathering pipelines throughout Weld County and surrounding counties will deliver to the GMP system. The recently announced Rimrock Platte River gathering system will deliver significant volumes from multiple shippers to GMP’s northern origin near Lucerne, Colorado. Additional planned expansions include trunk line gathering systems near Kersey and Riverside Reservoir, as well as north to Cheyenne.

The construction of the Weld County pipeline project will help further develop the crude and condensate rich areas in and around the DJ and Wattenberg fields and provide additional options transporting oil supplies to U.S. markets and refineries in the Midwest, including several interconnected to the NYMEX designated hub of Cushing, Oklahoma. GMP not only supports the continued growth and production in the area, but does so in a cost effective and environmentally responsible way by reducing the current utilization of rail and truck transportation while providing jobs and supporting the local economies.

NGL Energy Partners, LP and Rimrock Midstream, LLC would like to thank the local producers and shippers for their support of the Grand Mesa Pipeline.

About NGL Energy Partners LP

NGL Energy Partners LP is a Delaware limited partnership. NGL owns and operates a vertically integrated energy business with five primary segments: water solutions, crude oil logistics, NGL logistics, refined products/renewables and retail propane. NGL completed its initial public offering in May 2011. For further information, visit NGL’s website at www.nglenergypartners.com.

About Rimrock Midstream, LLC

Rimrock Midstream, LLC is a strategic, growth-oriented company formed to acquire, develop and operate a portfolio of midstream energy infrastructure assets. Rimrock is engaged in the business of transporting, storing and custom blending crude oil in Oklahoma, Kansas, Texas, North Dakota, Wyoming, Colorado, New Mexico and Utah. For more information, visit www.rimrockmidstream.com.