Black Mountain Sand LLC Announces Multi-Year Supply Contract with Diamondback Energy, Inc.

FORT WORTH, Texas–(BUSINESS WIRE)–Black Mountain Sand LLC (“Black Mountain” or the “Company) announced
that the Company has entered into a new multi-year supply contract with
Diamondback Energy, Inc. (NASDAQ:FANG) (“Diamondback”) beginning in
early 2018. This agreement will ensure Diamondback’s long-term
continuity of frac sand supply through committed capacity of Black
Mountain’s two 4 million tons per year facilities and 1.5 billion tons
of in-basin frac sand reserves.

Black Mountain will dedicate a substantial portion of its Permian mine
capacity to Diamondback, providing a single, secure source of in-basin
100 mesh and 40/70 frac sand supply. Black Mountain has accumulated
nearly 30,000 acres of quality sand reserves with strategic road access,
abundant water supply, and avoidance of the dune sagebrush lizard
habitat. As the largest in-basin sand company, Black Mountain’s
unrivaled acreage position and 2018 mining capacity of over 8 million
tons will help meet Diamondback’s rapidly expanding frac sand demand. In
addition, the strategic position of Black Mountain’s acreage, within
trucking distance of Diamondback’s Midland and Delaware acreage, will
significantly streamline cumbersome logistics components in the value
chain. This will allow Diamondback to create a flexible supply chain and
secure frac sand at the lowest delivered cost in the Permian Basin.

Travis Stice, Diamondback Chief Executive Officer, commented, “We are
excited about our Permian based partnership with Black Mountain Sand and
the advantages it will afford both parties. A long-term commitment with
a local sand supplier guarantees us a secure source of supply to execute
our drilling plans in the Midland and Delaware Basins at a cost that
will improve our single well economics, helping us maintain our position
as the low cost operator in the Permian Basin.”

“We are thrilled to be a part of this unique partnership with
Diamondback. The location of our reserves in the heart of the Permian
Basin provides us a major cost advantage that we can pass through to our
customers as they develop their Midland and Delaware Basin assets,” said
Rhett Bennett, Black Mountain Chief Executive Officer. “Through the
continued support of our financial sponsor and the reserves we’ve
secured throughout the basin, we will be in a position to support
Diamondback’s growth needs for a very long time.”

About Black Mountain Sand

Black Mountain Sand is an NGP-backed sand supplier with nearly 30,000
acres accumulated within Winkler County, and primarily serves the
Permian Basin. The Company’s in-basin product, Winkler White™, provides
a high quality, cost-effective proppant solution to meet the demands of
the Permian Basin. For more information, visit www.blackmountainsand.com.

About Diamondback Energy, Inc.

Diamondback is an independent oil and natural gas Company headquartered
in Midland, Texas focused on the acquisition, development, exploration
and exploitation of unconventional, onshore oil and natural gas reserves
in the Permian Basin in West Texas. Diamondback’s activities are
primarily focused on the horizontal exploitation of multiple intervals
within the Wolfcamp, Spraberry, Clearfork, Bone Spring and Cline
formations.

About NGP

Founded in 1988, NGP is a premier private equity firm in the natural
resources industry with approximately $17 billion of cumulative equity
commitments organized to make strategic investments in the energy and
natural resources sectors. For more information visit www.ngpenergycapital.com.

Forward-Looking Statements

This news release contains forward-looking statements within the meaning
of the federal securities laws. All statements, other than historical
facts, that address activities that Diamondback assumes, plans, expects,
believes, intends or anticipates (and other similar expressions) will,
should or may occur in the future are forward-looking statements,
including specifically the statements regarding the proposed activities
associated with the assets included in the acquisition announced above.
The forward-looking statements are based on management’s current
beliefs, based on currently available information, as to the outcome and
timing of future events. These forward-looking statements involve
certain risks and uncertainties that could cause the results to differ
materially from those expected by the management of Diamondback.
Information concerning these risks and other factors can be found in
Diamondback’s filings with the Securities and Exchange Commission,
including its Forms 10-K, 10-Q and 8-K, which can be obtained free of
charge on the Securities and Exchange Commission’s web site at http://www.sec.gov.
Diamondback undertakes no obligation to update or revise any
forward-looking statement.

Contacts

Diamondback Energy, Inc.
Investor Contact:
Adam Lawlis,
432-221-7467
[email protected]
or
Black
Mountain Sand LLC
Hayden Gillespie, 817-698-9901
Chief
Commercial Officer
[email protected]