White Cliffs Pipeline, L.L.C. Begins Commissioning of White Cliffs Pipeline Expansion

White Cliffs Pipeline, L.L.C. Begins Commissioning of White Cliffs Pipeline

TULSA, Okla., July 14, 2014 (GLOBE NEWSWIRE) -- White Cliffs Pipeline, L.L.C.
("WCPL"), owned by subsidiaries of Rose Rock Midstream, L.P. (NYSE:RRMS),
Plains All American Pipeline, L.P. (NYSE:PAA), Western Gas Partners, LP
(NYSE:WES) and Noble Energy, Inc. (NYSE:NBL), plans to begin the commissioning
of the expansion of the White Cliffs Pipeline (the "Expansion Project") in
July 2014. WCPL expects the Expansion Project, a looping of the existing crude
oil pipeline from Platteville, Colorado, to Cushing, Oklahoma, to be fully
operational in August 2014.

The Expansion Project allows WCPL to help meet the growing demand for
midstream services by offering long-haul transportation from the Denver
Julesburg Basin. Once the Expansion Project is fully operational, the capacity
of the White Cliffs Pipeline will increase from 76,000 barrels per day to
approximately 150,000 barrels per day. Following completion of the Expansion
Project, Rose Rock Midstream, L.P. will continue operating the White Cliffs

For additional information regarding White Cliffs Pipeline, please refer to
our webpage at rrmidstream.com.

About White Cliffs Pipeline

White Cliffs Pipeline^®, L.L.C. is a partially owned subsidiary of Rose Rock
Midstream, L.P. and is operated by Rose Rock Midstream, L.P. White Cliffs
Pipeline originates in Platteville, CO, northeast of Denver, and terminates at
Rose Rock Midstream's storage facility in Cushing, OK. White Cliffs Pipeline
runs 527 miles and consists of two 12-inch common carrier, crude oil pipelines
and is the only pipeline system that directly moves crude oil out of the DJ
Basin to the Cushing market and ultimately to refiners in the Mid-Continent

About Rose Rock Midstream

Rose Rock Midstream, L.P. (NYSE:RRMS) is a growth-oriented Delaware master
limited partnership formed by SemGroup^® Corporation to own, operate, develop
and acquire a diversified portfolio of midstream energy assets. Rose Rock
Midstream provides crude oil gathering, transportation, storage and marketing
services. Headquartered in Tulsa, OK, Rose Rock Midstream has operations in
six different states with the majority of its assets strategically located in
or connected to the Cushing, Oklahoma crude oil marketing hub.

About Plains All American Pipeline (NYSE:PAA)

Plains All American Pipeline, L.P. is a publicly traded master limited
partnership that owns and operates midstream energy infrastructure and
provides logistics services for crude oil, natural gas liquids ("NGL"),
natural gas and refined products. PAA owns an extensive network of pipeline
transportation, terminalling, storage and gathering assets in key crude oil
and NGL producing basins and transportation corridors and at major market hubs
in the United States and Canada. On average, PAA handles over 3.5 million
barrels per day of crude oil and NGL on its pipelines. PAA is headquartered in
Houston, Texas.

About Western Gas Partners, LP (NYSE:WES)

Western Gas Partners, LP ("WES") is a growth-oriented Delaware master limited
partnership formed by Anadarko Petroleum Corporation to own, operate, acquire
and develop midstream energy assets. With midstream assets in the Rocky
Mountains, the Mid-Continent, north-central Pennsylvania and Texas, WES is
engaged in the business of gathering, processing, compressing, treating and
transporting natural gas, condensate, natural gas liquids and crude oil for
Anadarko and other producers and customers.

About Noble Energy, Inc. (NYSE:NBL)

Noble Energy is a leading independent energy company engaged in worldwide oil
and gas exploration and production. The Company has core operations onshore in
the U.S., primarily in the DJ Basin and Marcellus Shale, in the deepwater Gulf
of Mexico, offshore Eastern Mediterranean, and offshore West Africa. Noble
Energy is listed on the New York Stock Exchange and is traded under the ticker
symbol NBL. Further information is available at www.nobleenergyinc.com.

Forward-Looking Statements

Certain matters contained in this Press Release include "forward-looking
statements" within the meaning of Section 27A of the Securities Act of 1933,
as amended, and Section 21E of the Securities Exchange Act of 1934, as
amended. We make these forward-looking statements in reliance on the safe
harbor protections provided under the Private Securities Litigation Reform Act
of 1995.

All statements, other than statements of historical fact, included in this
Press Release including the timing and capacity of the Expansion Project,
management's plans and objectives for the Expansion Project, business
prospects, outcome of regulatory proceedings, market conditions and other
matters, may constitute forward-looking statements. Although we believe that
the expectations reflected in these forward-looking statements are reasonable,
we cannot assure you that these expectations will prove to be correct. These
forward-looking statements are subject to certain known and unknown risks and
uncertainties, as well as assumptions that could cause actual results to
differ materially from those reflected in these forward-looking statements.
Factors that might cause actual results to differ include, but are not limited
to, regulatory approvals; environmental risks; changes in demand for crude
oil; loss of market share and industry competition; potential delays and cost
overruns; the risk of finalizing the T&D Agreements; the ability to access
sufficient capital from internal and external sources; as well as other risk
factors discussed from time to time in each of our documents and reports filed
with the SEC.

Readers are cautioned not to place undue reliance on any forward-looking
statements contained in this Press Release, which reflect management's
opinions only as of the date hereof. Except as required by law, we undertake
no obligation to revise or publicly release the results of any revision to any
forward-looking statements.

CONTACT: Investor Relations:
         Alisa Perkins, 918-524-7711
         Kiley Roberson, 918-524-8594

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