Diamondback Energy, Inc. — Director's Dealing 2013

Nov 20, 2013

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Diamondback Energy, Inc. (FANG)
CIK: 0001539838
Period of Report: 2013-11-18

Reporting Person: HOLDER RANDALL J (VP, General Counsel, Secretary)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2013-11-18	Common Stock	M	4286	—	Acquired	4286	Direct
2013-11-18	Common Stock	S	1715	$52.6019	Disposed	2571	Direct
2013-11-18	Common Stock	S	2571	$51.3749	Disposed	0	Direct
2013-11-18	Common Stock	M	12500	$17.50	Acquired	12500	Direct
2013-11-18	Common Stock	S	12500	$51.3749	Disposed	0	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2013-11-18	Restricted Stock Units	$0	M	4286	Disposed		Common Stock (4286)	Direct
2013-11-18	Stock Option (right to buy)	$17.50	M	12500	Disposed	2016-11-18	Common Stock (12500)	Direct

Footnotes

F1: Each restricted stock unit represents a contingent right to receive one share of common stock, par value $0.01 per share (the "Common Stock"), of Diamondback Energy, Inc. (the "Issuer") and was granted under the Isser's 2012 Stock Incentive Plan.

F2: Of these restricted stock units, 4,286 restricted stock units vested on November 18, 2013. The remaining 8,571 restricted stock units will vest in two approximately equal annual installments beginning on November 18, 2014.

F3: All options exercised on November 18, 2013 were vested on that date. The remaining options to purchase 25,000 shares of Common Stock will vest in two equal annual installments beginning on November 18, 2014.