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: Pantermuehl Russell (VP Reservoir Engineering)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2013-09-16	Common Stock	M	3801	—	Acquired	5801	Direct
2013-09-16	Common Stock	S	3801	$45.4002	Disposed	2000	Direct
2013-09-17	Common Stock	M	1200	—	Acquired	3200	Direct
2013-09-17	Common Stock	S	1200	$45.0842	Disposed	2000	Direct
2013-09-18	Common Stock	M	10000	$17.50	Acquired	12000	Direct
2013-09-18	Common Stock	S	10000	$44.6224	Disposed	2000	Direct
2013-09-18	Common Stock	M	1518	$17.50	Acquired	3518	Direct
2013-09-18	Common Stock	S	1518	$45.0687	Disposed	2000	Direct
2013-09-18	Common Stock	M	12142	—	Acquired	14142	Direct
2013-09-18	Common Stock	S	12142	$44.6224	Disposed	2000	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2013-09-16	Restricted Stock Units	$	M	3801	Disposed		Common Stock (3801)	Direct
2013-09-17	Restricted Stock Units	$	M	1200	Disposed		Common Stock (1200)	Direct
2013-09-18	Stock Option (right to buy)	$17.50	M	10000	Disposed	2016-08-15	Common Stock (10000)	Direct
2013-09-18	Stock Option (right to buy)	$17.50	M	1518	Disposed	2016-08-15	Common Stock (1518)	Direct
2013-09-18	Restricted Stock Units	$	M	12142	Disposed		Common Stock (12142)	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 Issuer's 2012 Stock Incentive Plan.

F2: The remaning 17,144 restricted stock units will vest in two equal annual installments beginning on August 15, 2014.

F3: Of these options, 40,000 are vested and the remaining 50,000 options to purchase shares of Common Stock will vest in two remaining equal annual installments beginning on August 15, 2014.

F4: Of these options, 38,482 are vested and the remaining 50,000 options to purchase shares of Common Stock will vest in two remaining equal annual installments beginning on August 15, 2014.