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: Dick Teresa L. (CFO, Sr. VP)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2013-09-16	Common Stock	M	8572	—	Acquired	9672	Direct
2013-09-16	Common Stock	S	8572	$44.7119	Disposed	1100	Direct
2013-09-17	Common Stock	M	1118	$17.50	Acquired	2218	Direct
2013-09-17	Common Stock	S	1118	$45.0962	Disposed	1100	Direct
2013-09-18	Common Stock	M	1546	$17.50	Acquired	2646	Direct
2013-09-18	Common Stock	S	1545	$45.0761	Disposed	1100	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2013-09-16	Restricted Stock Units	$0	M	8572	Disposed		Common Stock (8572)	Direct
2013-09-17	Stock Option (right to buy)	$17.50	M	1118	Disposed	2016-09-01	Common Stock (1118)	Direct
2013-09-18	Stock Option (right to buy)	$17.50	M	1546	Disposed	2016-09-01	Common Stock (1546)	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 8,571 restricted stock units will vest in two approximately equal annual installments beginning on September 1, 2014.

F3: Of these options, 23,882 were vested and the remaining 25,000 options to purchase shares of Common Stock will vest in two approximately equal annual installments beginning on September 1, 2014.

F4: Of these options, 22,336 were vested and the remaining 25,000 options to purchase shares of Common Stock will vest in two approximately equal annual installments beginning on September 1, 2014.