Diamondback Energy, Inc. — Director's Dealing 2013

Sep 18, 2013

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Diamondback Energy, Inc. (FANG)
CIK: 0001539838
Period of Report: 2013-09-16

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2013-09-16	Common Stock	M	4286	—	Acquired	4286	Direct
2013-09-16	Common Stock	S	4286	$44.71	Disposed	0	Direct
2013-09-17	Common Stock	M	12500	$17.50	Acquired	12500	Direct
2013-09-17	Common Stock	S	12500	$44.5064	Disposed	0	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2013-09-16	Restricted Stock Units	$0	M	4286	Disposed		Common Stock (4286)	Direct
2013-09-17	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: The remaining 12,857 restricted stock units will vest in three approximately equal annual installments beginning on November 18, 2013.

F3: The remaining options to purchase 37,500 shares of Common Stock will vest in three approximately equal annual installments beginning on November 18, 2013.